{"gene":"WWTR1","run_date":"2026-06-11T09:02:06","timeline":{"discoveries":[{"year":2007,"finding":"Wwtr1 knockout mice develop glomerulocystic kidney disease with reduced/shorter cilia in cyst-lining cells, and siRNA knockdown of Wwtr1 in mIMCD3 renal collecting duct cells recapitulates loss of cilia integrity and downregulation of cilia-associated genes (Tg737, Kif3a, Dctn5, Pkhd1, Ofd1), establishing Wwtr1 as critical for renal cilia integrity.","method":"Homologous recombination knockout mouse, siRNA knockdown in mIMCD3 cells, RT-PCR for cilia genes","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 2 / Strong — clean KO with defined cellular phenotype, corroborated by siRNA in cell line with multiple gene readouts, replicated across two experimental systems","pmids":["17251353"],"is_preprint":false},{"year":2009,"finding":"Wwtr1/TAZ physically interacts with the transcription factor Glis3 via a P/LPXY motif in the C-terminus of Glis3, and Wwtr1 enhances Glis3-mediated transcriptional activation, functioning as a coactivator; mutations in the P/LPXY motif abrogate both the interaction and Glis3 transcriptional activity.","method":"Co-immunoprecipitation, transcriptional reporter assays, site-directed mutagenesis of P/LPXY motif","journal":"Molecular and cellular biology","confidence":"High","confidence_rationale":"Tier 1–2 / Moderate — reciprocal interaction demonstrated with mutagenesis validation and functional transcriptional readout in a single rigorous study","pmids":["19273592"],"is_preprint":false},{"year":2012,"finding":"GSK3 phosphorylates an N-terminal phosphodegron in TAZ/WWTR1, causing phosphorylated TAZ to bind the β-TrCP subunit of the SCF(β-TrCP) E3 ubiquitin ligase, leading to TAZ ubiquitylation and proteasomal degradation. This pathway is activated when PI3K signaling is low (allowing GSK3 activity), and TAZ levels are elevated in PTEN-mutant cells with high PI3K activity.","method":"In vitro kinase assay, co-immunoprecipitation, ubiquitylation assay, site-directed mutagenesis of phosphodegron, western blotting in PTEN mutant cancer cells","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 1 / Moderate — in vitro kinase assay plus mutagenesis plus co-IP with functional degradation readout, single lab but multiple orthogonal methods","pmids":["22692215"],"is_preprint":false},{"year":2015,"finding":"The WWTR1(TAZ)-CAMTA1 fusion oncoprotein localizes constitutively to the nucleus (escaping normal cytoplasmic retention/14-3-3 binding/degradation), activates a TAZ-like transcriptional program, confers resistance to anoikis, and induces oncogenic transformation in cells.","method":"Subcellular fractionation/immunofluorescence, soft agar colony formation, anoikis resistance assays, transcriptional profiling","journal":"Oncogene","confidence":"High","confidence_rationale":"Tier 2 / Moderate — multiple functional assays (localization, transformation, anoikis) with mechanistic explanation; single lab with orthogonal methods","pmids":["25961935"],"is_preprint":false},{"year":2016,"finding":"Hepatocyte TAZ/WWTR1 promotes NASH by activating TEAD-dependent transcription of Indian hedgehog (Ihh), a secreted factor that activates fibrogenic genes in hepatic stellate cells; silencing hepatocyte TAZ prevented/reversed hepatic inflammation, hepatocyte death, and fibrosis (but not steatosis) in murine NASH models.","method":"Hepatocyte-specific siRNA knockdown and overexpression in mouse NASH models, reporter assays for TEAD-Ihh axis, in vitro/in vivo mechanistic studies","journal":"Cell metabolism","confidence":"High","confidence_rationale":"Tier 2 / Strong — genetic gain- and loss-of-function in vivo with specific mechanistic pathway (TAZ→TEAD→Ihh→stellate cell fibrogenesis) and multiple orthogonal readouts","pmids":["28068223"],"is_preprint":false},{"year":2017,"finding":"In zebrafish, Wwtr1 (with Yap1) is specifically localized to presumptive epidermis and notochord, and regulates posterior body extension and epidermal fin fold morphogenesis by controlling Fibronectin assembly underneath the presumptive epidermis and surrounding the notochord.","method":"Zebrafish loss-of-function (mutant/morpholino), live imaging, immunofluorescence for Fibronectin assembly, tissue-specific localization","journal":"eLife","confidence":"High","confidence_rationale":"Tier 2 / Moderate — clean genetic loss-of-function with defined cellular/molecular phenotype (Fibronectin assembly) and direct localization experiments","pmids":["29283341"],"is_preprint":false},{"year":2018,"finding":"In zebrafish, Wwtr1 establishes compact wall architecture necessary for cardiac trabeculation; loss of wwtr1 causes disorganized cortical actin and abnormal cell-cell junctions in compact layer cardiomyocytes. Additionally, Nrg/Erbb2 signaling promotes nuclear export of Wwtr1 in cardiomyocytes, negatively regulating its nuclear activity.","method":"Zebrafish genetic loss-of-function, mosaic analysis, immunofluorescence for actin/junctions, pharmacological/genetic manipulation of Nrg/Erbb2 signaling, subcellular localization of Wwtr1","journal":"Development (Cambridge, England)","confidence":"High","confidence_rationale":"Tier 2 / Moderate — mosaic analysis plus signaling manipulation plus localization studies, multiple orthogonal approaches in single study","pmids":["29773645"],"is_preprint":false},{"year":2018,"finding":"TAZ/WWTR1 acts as a transcriptional modifier of NKX2-1 in the lung: co-expression of TAZ/WWTR1 restores transactivation of a lung-specific promoter by a C-terminal NKX2-1 mutant (but not an N-terminal mutant), and both NKX2-1 mutants physically interact equally with TAZ/WWTR1; this implicates TAZ in the lung phenotype of brain-lung-thyroid syndrome.","method":"Co-immunoprecipitation, luciferase reporter assays, confocal microscopy, site-directed mutagenesis","journal":"The Journal of clinical endocrinology and metabolism","confidence":"Medium","confidence_rationale":"Tier 2 / Weak — Co-IP and reporter assay with mutagenesis, single lab, moderate mechanistic depth","pmids":["29294041"],"is_preprint":false},{"year":2019,"finding":"TEAD4, YAP1, and WWTR1 directly repress Sox2 transcription prior to the 16-cell stage in mouse embryos, preventing premature activation of pluripotency; this repression is sensitive to LATS kinase activity even though LATS does not normally limit YAP1/WWTR1/TEAD4 activity at these stages.","method":"Mouse embryo genetic knockouts (Yap1, Wwtr1, Tead4), reporter assays for direct transcriptional repression of Sox2, pharmacological LATS inhibition","journal":"Development (Cambridge, England)","confidence":"High","confidence_rationale":"Tier 2 / Moderate — clean genetic loss-of-function in embryos with direct transcriptional repression assay and LATS dependency test; multiple orthogonal approaches","pmids":["31444221"],"is_preprint":false},{"year":2021,"finding":"WWTR1(TAZ)-CAMTA1 expression in endothelial cells is sufficient to drive formation of EHE-like vascular tumors; constitutively active TAZ similarly drives EHE-like tumors. The TAZ-CAMTA1 fusion requires its interaction with TEAD to mediate transformation, as disruption of the TAZ-CAMTA1–TEAD interaction or dominant-negative TEAD expression inhibits tumor formation in vivo.","method":"Endothelial-specific conditional mouse model, dominant-negative TEAD expression, genetic disruption of TEAD-binding domain, histological/immunohistochemical characterization","journal":"Genes & development","confidence":"High","confidence_rationale":"Tier 2 / Strong — two complementary in vivo genetic models with mechanistic pathway definition (TEAD-dependency), corroborated by companion paper","pmids":["33766984"],"is_preprint":false},{"year":2021,"finding":"The WWTR1(TAZ)-CAMTA1 gene fusion knocked into the endogenous Wwtr1 locus by Cre activation is sufficient to drive EHE tumor formation with specificity; activated TAZ produces indistinguishable EHE-like tumors, establishing constitutive TAZ activation as the core oncogenic mechanism.","method":"Conditional knock-in mouse model targeting Wwtr1 locus, Cre-activation, histology, immunohistochemistry, genetic analysis","journal":"Genes & development","confidence":"High","confidence_rationale":"Tier 2 / Strong — first knock-in conditional model at endogenous locus, genetic sufficiency rigorously established; replicated across two concurrent publications","pmids":["33766982"],"is_preprint":false},{"year":2021,"finding":"Zebrafish foxc1a directly binds the wwtr1 promoter at three sites and transcriptionally activates wwtr1 expression; overexpression of wwtr1 mRNA rescues ventricular chamber maturation defects in foxc1a-null embryos, placing wwtr1 as a direct downstream target of Foxc1a in cardiac development.","method":"Dual-luciferase assay, chromatin immunoprecipitation (ChIP), mRNA overexpression rescue experiment in zebrafish","journal":"Journal of genetics and genomics","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP plus luciferase plus mRNA rescue in a single study, single lab","pmids":["34923164"],"is_preprint":false},{"year":2022,"finding":"SORBS3 depletion increases F-actin structures which compete with YAP1-WWTR1/TAZ for binding to AMOT (angiomotin) proteins in the cytosol; unbound YAP1-WWTR1/TAZ translocates to the nucleus and upregulates target genes (including myosin- and actin-related genes) to promote autophagosome formation.","method":"siRNA knockdown of SORBS3, F-actin manipulation, nuclear/cytoplasmic fractionation, autophagosome quantification, gene expression analysis","journal":"Autophagy","confidence":"Medium","confidence_rationale":"Tier 2–3 / Weak — knockdown with subcellular localization and functional readout but pathway inference based on competition assay without direct binding reconstitution; single lab","pmids":["35822241"],"is_preprint":false},{"year":2022,"finding":"ZO-2/Tjp2 negatively regulates Yap and Wwtr1/Taz protein expression in hepatocytes; loss of Tjp2 upregulates Yap and Wwtr1/Taz protein, and DDC-diet-induced hepatocyte-to-cholangiocyte transdifferentiation in Tjp2 cKO mice requires Yap and Wwtr1/Taz activity.","method":"Liver-specific Tjp2 conditional knockout mice, DDC diet challenge, Western blot for Yap/Taz protein, genetic epistasis (hepatocyte vs. cholangiocyte-specific deletion)","journal":"NPJ Regenerative medicine","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — clean conditional KO with epistasis (cell-type specific deletion) and protein-level readout, single lab","pmids":["36151109"],"is_preprint":false},{"year":2022,"finding":"WWTR1/TAZ nuclear localization mediates mesothelial-mesenchymal transition (MMT) induced by lysophosphatidic acid (LPA) and stiff extracellular matrix; siRNA knockdown of Taz suppressed LPA-induced MMT and MMT on stiff hydrogels. TGF-β1 signaling inhibition did not suppress stiffness-induced MMT, indicating TAZ acts downstream of mechanical signals independently of TGF-β1 in this context.","method":"siRNA knockdown of Taz, hydrogels of defined stiffness, immunofluorescence for TAZ nuclear localization, LPA and TGF-β1 treatment, myofibroblast differentiation assays","journal":"Journal of cellular physiology","confidence":"Medium","confidence_rationale":"Tier 2–3 / Moderate — siRNA knockdown with direct localization imaging and functional MMT readout; mechanostiffness gradient plus chemical perturbation, single lab","pmids":["35445400"],"is_preprint":false},{"year":2022,"finding":"WWTR1 S89W somatic mutation reduces binding of TAZ to 14-3-3 proteins, leading to constitutive nuclear translocation of TAZ, Hippo pathway repression, and acquisition of oncogenic phenotypes (increased proliferation, migration, colony formation, tumorigenesis in vivo); these effects are reversed by YAP/TAZ inhibition with verteporfin.","method":"In vitro functional assays (proliferation, migration, colony formation), 14-3-3 binding assay, subcellular fractionation/immunofluorescence, xenograft mouse model, verteporfin treatment","journal":"The Journal of pathology","confidence":"High","confidence_rationale":"Tier 2 / Moderate — multiple orthogonal functional assays plus binding assay plus in vivo xenograft, single lab; mutation mechanistically linked to 14-3-3 dissociation","pmids":["35411948"],"is_preprint":false},{"year":2022,"finding":"WWTR1 promotes trophoblast stem cell self-renewal, is required for cytotrophoblast differentiation to extravillous trophoblasts (EVTs), and prevents induction of the syncytiotrophoblast (STB) fate; mechanistically, WWTR1 fine-tunes trophoblast fate by directly regulating WNT signaling components.","method":"shRNA knockdown and overexpression in human trophoblast stem cells and primary CTBs, placental explants, single-cell RNA sequencing, mechanistic WNT pathway analysis","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 2 / Moderate — loss- and gain-of-function in multiple human trophoblast systems with scRNA-seq pathway analysis; single lab but orthogonal methods","pmids":["36037374"],"is_preprint":false},{"year":2023,"finding":"Polycystin-1 (PC1) and Wwtr1 have interdependent (additive/cooperative) mechanosensing functions in osteoblasts; double osteoblast-specific conditional knockout of Pkd1 and Wwtr1 shows greater reductions in bone mass, periosteal mineral apposition, and impaired mechanical loading responses than either single KO, and resistance to the anabolic mechanomimetic MS2 requires both genes.","method":"Osteoblast-specific conditional double knockout mice, micro-CT, mechanical loading assay, pharmacological mechanomimetic (MS2), gene expression profiling; genetic epistasis","journal":"Bone research","confidence":"High","confidence_rationale":"Tier 2 / Moderate — clean genetic epistasis with quantitative bone phenotyping and pharmacological validation; multiple orthogonal approaches, single lab","pmids":["37884491"],"is_preprint":false},{"year":2023,"finding":"In cardiac myofibroblasts, Yap/Wwtr1 depletion (but not Yap depletion alone) attenuates fibrosis and improves cardiac function post-infarction; Ccn3 is identified as a downstream target of Yap/Wwtr1 in myofibroblasts, and recombinant CCN3 administration aggravates cardiac fibrosis, establishing Ccn3 as a mediator of Yap/Wwtr1-driven adverse cardiac remodeling.","method":"Myofibroblast-specific conditional double KO (Yap;Wwtr1;Postn-Cre), myocardial infarction model, scRNA-seq, siRNA knockdown in vitro, recombinant CCN3 administration in vivo","journal":"Frontiers in cardiovascular medicine","confidence":"High","confidence_rationale":"Tier 2 / Moderate — conditional genetic KO with downstream effector validation by gain-of-function (recombinant CCN3) and in vitro siRNA; multiple orthogonal approaches, single lab","pmids":["36998974"],"is_preprint":false},{"year":2023,"finding":"Wwtr1-deficient mice display reduced corneal endothelial cell (CEnC) density, abnormal CEnC morphology, softer Descemet's membrane, altered Na/K-ATPase and ZO-1 localization, and impaired CEnC wound healing, modeling Fuchs' endothelial corneal dystrophy; nuclear WWTR1/TAZ protein is elevated and mislocalized surrounding guttae in FECD patients.","method":"Wwtr1 knockout mouse model, atomic force microscopy, immunofluorescence, cryoinjury/keratectomy wound healing assay, human CEnC analysis","journal":"Investigative ophthalmology & visual science","confidence":"Medium","confidence_rationale":"Tier 2–3 / Moderate — clean KO with multiple phenotypic readouts and human tissue correlation; functional wound healing assay; single lab","pmids":["37074694"],"is_preprint":false},{"year":2023,"finding":"Wnt16 promotes vascular smooth muscle contractile phenotype via Taz (Wwtr1) activation; siRNA targeting Taz (but not Yap1) phenocopies Wnt16 deficiency, Taz siRNA inhibits contractile gene upregulation by Wnt16, and Wnt16 stimulates Taz binding to Acta2 chromatin with H3K4me3 methylation; TEAD cognates in the Acta2 promoter are required for transcriptional responses to Wnt16/Taz.","method":"siRNA knockdown, ChIP assay, promoter reporter assay, verteporfin inhibition, mitochondrial respiration assay, mouse genetic model","journal":"Endocrinology","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP plus reporter assay plus siRNA with functional contractility readout; multiple orthogonal methods, single lab","pmids":["38123514"],"is_preprint":false},{"year":2023,"finding":"WWTR1/TAZ nuclear localization is required for sensitization of p53-proficient colorectal cancer cells to oxaliplatin; nuclear TAZ accumulates following oxaliplatin-induced core Hippo pathway downregulation and is required for increased sensitivity in an effect independent of p73 but dependent on nuclear relocalization and p53 status.","method":"Loss-of-function (siRNA/drug), nuclear fractionation, co-treatment with YAP/TAZ inhibitors (verteporfin, CA3), multiple colorectal cell lines with known p53 status","journal":"BMC cancer","confidence":"Medium","confidence_rationale":"Tier 2–3 / Moderate — siRNA knockdown plus pharmacological inhibition across multiple cell lines with mechanistic pathway dissection; single lab","pmids":["38741073"],"is_preprint":false},{"year":2024,"finding":"WWTR1 transcriptionally upregulates TGF-β receptor type II (TβRII) expression by directly binding its promoter in osteoblasts; IFT20 stabilizes TβRII protein by blocking c-Cbl-mediated ubiquitination; double deletion of IFT20 and Wwtr1 in osteoblasts synergistically inhibits osteogenesis and promotes adipogenesis and osteoclastogenesis.","method":"Conditional double knockout mice, chromatin immunoprecipitation (ChIP), ubiquitination assay, Co-immunoprecipitation, OVX/HFD osteoporosis models, gene expression analysis","journal":"Research square (preprint)","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — ChIP plus ubiquitination assay plus Co-IP with in vivo mouse model; preprint status lowers certainty","pmids":["38562782"],"is_preprint":true},{"year":2024,"finding":"The novel WWTR1::TFE3 fusion protein promotes colony formation in soft agar (oncogenic transformation); this transformative effect requires the WWTR1 domain's ability to bind TEAD transcription factors, as mutation of the TEAD-binding domain of WWTR1 in the fusion abrogates transformation.","method":"Soft agar colony formation assay in NIH3T3 cells, site-directed mutagenesis of TEAD-binding domain of WWTR1 portion","journal":"Genes, chromosomes & cancer","confidence":"Medium","confidence_rationale":"Tier 2 / Weak — in vitro transformation assay with mutagenesis; single case study with functional validation; single lab","pmids":["38380774"],"is_preprint":false},{"year":2026,"finding":"Wwtr1 (TAZ) deficiency in corneal endothelial cells leads to progressive ER stress, mitochondrial structural and functional abnormalities, impaired Na+/K+ ATPase localization, and age-dependent dysregulation of autophagy and extracellular matrix organization genes, establishing a mechanistic link between disrupted mechanotransduction and organelle stress in CEnC degeneration.","method":"Single-cell transcriptomics (scRNA-seq), transmission electron microscopy, immunofluorescence, Wwtr1 knockout mouse at two age points","journal":"bioRxiv (preprint)","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — scRNA-seq plus TEM plus immunofluorescence in knockout model at two ages; preprint status, single lab","pmids":["41756894"],"is_preprint":true}],"current_model":"WWTR1 (TAZ) is a WW-domain transcriptional coactivator and Hippo pathway effector that, when unphosphorylated, localizes to the nucleus and activates TEAD-family transcription factors to regulate organ size, cell fate, and mechanosensing; it is subject to multi-layered post-translational regulation including LATS-mediated phosphorylation causing 14-3-3 binding and cytoplasmic sequestration, and GSK3-mediated phosphorylation of an N-terminal phosphodegron enabling SCF(β-TrCP)-dependent ubiquitylation and proteasomal degradation downstream of PI3K/AKT signaling; in tissues it controls renal cilia integrity, cardiac wall maturation, trophoblast fate, osteoblast mechanosensing, hepatic fibrosis (via TEAD-driven Indian hedgehog secretion), and corneal endothelial homeostasis, while the oncogenic WWTR1-CAMTA1 gene fusion produces constitutive nuclear TAZ activity that drives epithelioid hemangioendothelioma through TEAD-dependent transcription."},"narrative":{"mechanistic_narrative":"WWTR1 (TAZ) is a transcriptional coactivator that converts mechanical and developmental signals into TEAD-dependent gene programs governing organ size, cell fate, and tissue mechanosensing [PMID:36037374, PMID:28068223]. It functions by binding transcription factors through a WW/P-LPXY motif interface — demonstrated for Glis3, where TAZ enhances Glis3-driven transcription and motif mutations abolish both binding and activity [PMID:19273592] — and acts as a modifier of NKX2-1 transactivation [PMID:29294041]. TAZ activity is gated by its subcellular localization: GSK3 phosphorylates an N-terminal phosphodegron that recruits the SCF(β-TrCP) E3 ligase for ubiquitylation and proteasomal degradation when PI3K signaling is low, so that PTEN loss stabilizes TAZ [PMID:22692215], while 14-3-3 binding and competition with AMOT/F-actin retain TAZ in the cytoplasm; relief of these constraints drives nuclear translocation and target-gene activation [PMID:35411948, PMID:35822241]. In tissues, nuclear TAZ controls renal cilia integrity [PMID:17251353], compact-wall and trabecular cardiac architecture via Fibronectin assembly and Nrg/Erbb2-regulated nuclear export [PMID:29283341, PMID:29773645], trophoblast self-renewal and differentiation through WNT components [PMID:36037374], osteoblast mechanosensing in concert with Polycystin-1 and through transcriptional control of TβRII [PMID:37884491, PMID:38562782], and corneal endothelial homeostasis [PMID:37074694]. TAZ drives fibrosis by activating TEAD-dependent transcription of secreted Indian hedgehog in hepatocytes and of Ccn3 in cardiac myofibroblasts [PMID:28068223, PMID:36998974]. Constitutive nuclear activation is oncogenic: the WWTR1-CAMTA1 and WWTR1::TFE3 fusions and the 14-3-3-disrupting S89W mutation all produce TEAD-dependent transformation and tumor formation [PMID:33766984, PMID:33766982, PMID:38380774, PMID:35411948].","teleology":[{"year":2007,"claim":"Established that WWTR1 has an essential tissue-level function, linking it to renal ciliary biology before its transcriptional mechanism was resolved.","evidence":"Knockout mouse with glomerulocystic kidney phenotype plus siRNA in mIMCD3 cells downregulating cilia genes","pmids":["17251353"],"confidence":"High","gaps":["Did not identify the transcription factors or direct target genes mediating cilia control","Mechanism connecting TAZ to specific cilia genes (Pkhd1, Ofd1) left undefined"]},{"year":2009,"claim":"Defined the molecular basis of TAZ coactivation by showing it docks onto a partner transcription factor via a P/LPXY motif to enhance transcription.","evidence":"Co-IP, reporter assays, and P/LPXY motif mutagenesis with Glis3","pmids":["19273592"],"confidence":"High","gaps":["Limited to Glis3; generality of the motif interface to other partners not tested here","No structural detail of the WW-domain interaction"]},{"year":2012,"claim":"Resolved a degradation arm of TAZ regulation, showing protein abundance is controlled by a GSK3 phosphodegron feeding SCF(β-TrCP), linking TAZ stability to PI3K/PTEN status.","evidence":"In vitro kinase, co-IP, ubiquitylation and phosphodegron mutagenesis in PTEN-mutant cells","pmids":["22692215"],"confidence":"High","gaps":["Relationship between this degron and LATS/14-3-3 cytoplasmic retention not integrated","Quantitative contribution to TAZ levels in normal tissue unknown"]},{"year":2015,"claim":"Identified constitutive nuclear localization as the core oncogenic mechanism of the WWTR1-CAMTA1 fusion, escaping normal cytoplasmic restraint.","evidence":"Subcellular fractionation, soft-agar transformation, anoikis-resistance assays and transcriptional profiling","pmids":["25961935"],"confidence":"High","gaps":["TEAD-dependency not yet formally tested in this study","Cell-of-origin for tumor formation not established here"]},{"year":2017,"claim":"Connected TAZ to extracellular matrix morphogenesis, showing it controls Fibronectin assembly during body extension and fin-fold formation.","evidence":"Zebrafish loss-of-function with live imaging and Fibronectin immunofluorescence","pmids":["29283341"],"confidence":"High","gaps":["Transcriptional targets driving Fibronectin assembly not identified","Whether effect is cell-autonomous left open"]},{"year":2018,"claim":"Established TAZ's role in cardiac compact-wall architecture and revealed Nrg/Erbb2 signaling as an upstream regulator of TAZ nuclear export.","evidence":"Zebrafish mosaic analysis, junction/actin imaging, and Nrg/Erbb2 manipulation with TAZ localization","pmids":["29773645"],"confidence":"High","gaps":["Molecular link between Erbb2 signaling and TAZ export machinery undefined","Direct target genes in cardiomyocytes not identified"]},{"year":2018,"claim":"Showed TAZ modifies NKX2-1 transactivation in lung, extending its coactivator role to a tissue-specific transcription factor and a human syndrome.","evidence":"Co-IP, luciferase reporter assays and mutagenesis of NKX2-1 domains","pmids":["29294041"],"confidence":"Medium","gaps":["Reporter-based; in vivo relevance to brain-lung-thyroid syndrome not directly tested","Binding equal for both mutants leaves functional discrimination mechanism unclear"]},{"year":2019,"claim":"Demonstrated TAZ can act as a transcriptional repressor in early embryos, repressing Sox2 with TEAD4/YAP1 to restrain premature pluripotency.","evidence":"Mouse embryo knockouts, Sox2 repression reporter assays and LATS inhibition","pmids":["31444221"],"confidence":"High","gaps":["Mechanism converting TAZ-TEAD from activator to repressor not defined","Stage-specific LATS insensitivity unexplained"]},{"year":2016,"claim":"Defined a paracrine fibrotic axis in which hepatocyte TAZ drives TEAD-dependent Indian hedgehog secretion to activate stellate-cell fibrogenesis.","evidence":"Hepatocyte-specific gain/loss-of-function in mouse NASH with TEAD-Ihh reporter assays","pmids":["28068223"],"confidence":"High","gaps":["Upstream signal activating hepatocyte TAZ in NASH not identified","Effect on steatosis absent, leaving lipid arm separate"]},{"year":2021,"claim":"Proved that constitutive TAZ activation is sufficient to cause EHE in vivo and that transformation strictly requires the TAZ-TEAD interaction.","evidence":"Endothelial conditional and knock-in mouse models with dominant-negative TEAD and TEAD-binding-domain disruption","pmids":["33766984","33766982"],"confidence":"High","gaps":["Specific TEAD target genes driving endothelial transformation not enumerated","Why endothelium is the susceptible lineage unresolved"]},{"year":2021,"claim":"Placed wwtr1 as a direct transcriptional target of Foxc1a in cardiac chamber maturation, identifying an upstream activator of TAZ expression.","evidence":"ChIP, dual-luciferase and wwtr1 mRNA rescue in foxc1a-null zebrafish","pmids":["34923164"],"confidence":"Medium","gaps":["Conservation of Foxc1a-wwtr1 regulation in mammals untested","Whether transcriptional vs post-translational control dominates in this context unclear"]},{"year":2022,"claim":"Linked TAZ nuclear shuttling to cytoskeletal/AMOT competition and a new autophagy output downstream of SORBS3.","evidence":"SORBS3 knockdown, F-actin manipulation, fractionation and autophagosome quantification","pmids":["35822241"],"confidence":"Medium","gaps":["Competition inferred without direct binding reconstitution","Direct TAZ targets driving autophagosome formation not validated"]},{"year":2022,"claim":"Showed ZO-2/Tjp2 negatively regulates TAZ protein levels and that TAZ is required for hepatocyte-to-cholangiocyte transdifferentiation.","evidence":"Liver Tjp2 conditional KO, DDC challenge, Western blot and cell-type-specific epistasis","pmids":["36151109"],"confidence":"Medium","gaps":["Mechanism by which Tjp2 controls TAZ protein abundance not defined","Direct target genes of transdifferentiation not identified"]},{"year":2022,"claim":"Established TAZ as the dominant effector of matrix-stiffness and LPA-induced mesothelial-mesenchymal transition, acting independently of TGF-β1.","evidence":"siRNA knockdown, defined-stiffness hydrogels, TAZ localization imaging and TGF-β1 inhibition","pmids":["35445400"],"confidence":"Medium","gaps":["Mechanotransduction machinery upstream of TAZ in mesothelium undefined","Target genes driving MMT not mapped"]},{"year":2022,"claim":"Identified an activating point mutation (S89W) that disrupts 14-3-3 binding to drive constitutive nuclear TAZ and oncogenic phenotypes, mechanistically mirroring the fusion oncoproteins.","evidence":"14-3-3 binding assay, fractionation, in vitro transformation assays, xenograft and verteporfin reversal","pmids":["35411948"],"confidence":"High","gaps":["Tumor types where S89W occurs not delineated here","Whether residual LATS regulation persists not tested"]},{"year":2022,"claim":"Defined TAZ as a fate-determining regulator in human trophoblast, promoting self-renewal and EVT differentiation while blocking syncytiotrophoblast fate via WNT components.","evidence":"shRNA/overexpression in trophoblast stem cells and explants with scRNA-seq","pmids":["36037374"],"confidence":"High","gaps":["Direct WNT-component targets bound by TAZ not enumerated","Whether action is TEAD-dependent in trophoblast untested"]},{"year":2023,"claim":"Demonstrated cooperative mechanosensing between TAZ and Polycystin-1 in osteoblasts, with both required for anabolic loading responses.","evidence":"Osteoblast double conditional KO, micro-CT, mechanical loading and mechanomimetic MS2","pmids":["37884491"],"confidence":"High","gaps":["Molecular link between PC1 and TAZ activation not defined","Shared transcriptional targets not identified"]},{"year":2023,"claim":"Identified Ccn3 as a TAZ-driven mediator of adverse cardiac fibrotic remodeling, defining a myofibroblast effector downstream of YAP/TAZ.","evidence":"Myofibroblast double conditional KO, MI model, scRNA-seq and recombinant CCN3 administration","pmids":["36998974"],"confidence":"High","gaps":["Direct binding of TAZ to the Ccn3 locus not shown","Whether YAP and TAZ are interchangeable here not fully resolved"]},{"year":2023,"claim":"Established TAZ as essential for corneal endothelial homeostasis and modeled Fuchs' dystrophy, with elevated nuclear TAZ seen in patient tissue.","evidence":"Wwtr1 KO mouse, atomic force microscopy, wound-healing assay and human CEnC analysis","pmids":["37074694"],"confidence":"Medium","gaps":["Causal link between TAZ loss and guttae formation not mechanistically resolved","Transcriptional targets in endothelium not mapped"]},{"year":2023,"claim":"Showed Wnt16 signals through TAZ to upregulate the vascular smooth muscle contractile program via TAZ binding at the Acta2 promoter and TEAD cognate sites.","evidence":"siRNA, ChIP, promoter reporter, verteporfin and mouse genetic model","pmids":["38123514"],"confidence":"Medium","gaps":["Link between Wnt16 receptor signaling and TAZ activation undefined","YAP non-redundancy mechanism unclear"]},{"year":2023,"claim":"Showed nuclear TAZ relocalization sensitizes p53-proficient colorectal cancer cells to oxaliplatin, implicating TAZ in chemotherapy response.","evidence":"siRNA/drug loss-of-function, nuclear fractionation and YAP/TAZ inhibitors across p53-defined cell lines","pmids":["38741073"],"confidence":"Medium","gaps":["TAZ target genes mediating chemosensitivity not identified","Mechanistic basis of p53 dependence unresolved"]},{"year":2024,"claim":"Extended the oncogenic fusion paradigm to WWTR1::TFE3, confirming TEAD-binding is the shared requirement for fusion-driven transformation.","evidence":"Soft-agar transformation in NIH3T3 with TEAD-binding-domain mutagenesis","pmids":["38380774"],"confidence":"Medium","gaps":["In vivo tumorigenicity not tested","Contribution of the TFE3 partner to the program undefined"]},{"year":2024,"claim":"Defined a transcriptional-plus-stabilization circuit in which TAZ activates TβRII transcription and cooperates with IFT20 to control bone fate.","evidence":"ChIP, ubiquitination/Co-IP and osteoblast double KO in osteoporosis models (preprint)","pmids":["38562782"],"confidence":"Medium","gaps":["Preprint, awaiting peer review","Direct interplay between IFT20-stabilized TβRII and TAZ transcriptional output not fully separated"]},{"year":2026,"claim":"Linked TAZ-dependent mechanotransduction to organelle stress, showing its loss causes ER stress, mitochondrial defects and dysregulated autophagy/ECM genes in corneal endothelium.","evidence":"scRNA-seq, TEM and immunofluorescence in aged Wwtr1 KO mice (preprint)","pmids":["41756894"],"confidence":"Medium","gaps":["Preprint, awaiting peer review","Direct transcriptional targets connecting TAZ to organelle homeostasis not identified"]},{"year":null,"claim":"How TAZ-TEAD complexes are switched between activating and repressive states across tissues, and what defines lineage-specific target-gene selection, remains unresolved.","evidence":"","pmids":[],"confidence":"Medium","gaps":["No unified model linking the degron, 14-3-3 and AMOT/cytoskeletal control arms quantitatively","Direct genome-wide TAZ targets in most physiological contexts unmapped"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0140110","term_label":"transcription regulator activity","supporting_discovery_ids":[1,4,8,16,20]},{"term_id":"GO:0060090","term_label":"molecular adaptor activity","supporting_discovery_ids":[1,7]},{"term_id":"GO:0003677","term_label":"DNA 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Nucleic acids","url":"https://pubmed.ncbi.nlm.nih.gov/41341748","citation_count":0,"is_preprint":false},{"pmid":"37494380","id":"PMC_37494380","title":"Spontaneous urinary bladder regeneration after subtotal cystectomy increases YAP/WWTR1 signaling and downstream BDNF expression: Implications for smooth muscle injury responses.","date":"2023","source":"PloS one","url":"https://pubmed.ncbi.nlm.nih.gov/37494380","citation_count":0,"is_preprint":false},{"pmid":"38766130","id":"PMC_38766130","title":"Yes Associated Transcriptional Regulator 1 (YAP1) and WW Domain Containing Transcription Regulator (WWTR1) are required for murine pregnancy initiation.","date":"2024","source":"bioRxiv : the preprint server for biology","url":"https://pubmed.ncbi.nlm.nih.gov/38766130","citation_count":0,"is_preprint":false},{"pmid":"34231054","id":"PMC_34231054","title":"Novel detection of the CAMTA1-WWTR1 fusion gene in extra-adrenal myelolipoma-like lesion: a case report.","date":"2021","source":"Virchows Archiv : an international journal of pathology","url":"https://pubmed.ncbi.nlm.nih.gov/34231054","citation_count":0,"is_preprint":false},{"pmid":"41756894","id":"PMC_41756894","title":"TAZ (Wwtr1) deficiency leads to ER stress and mitochondrial dysfunction in a mouse model of Fuchs' endothelial corneal dystrophy.","date":"2026","source":"bioRxiv : the preprint server for biology","url":"https://pubmed.ncbi.nlm.nih.gov/41756894","citation_count":0,"is_preprint":false}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":33282,"output_tokens":6660,"usd":0.099873,"stage1_stop_reason":"end_turn"},"stage2":{"model":"claude-opus-4-8","input_tokens":15776,"output_tokens":6546,"usd":0.121265,"stage2_stop_reason":"end_turn"},"total_usd":0.221138,"stage1_batch_id":"msgbatch_01UT1AahFPCAyn2uVweS7A9z","stage2_batch_id":"msgbatch_01HuKWtKNT4Pqj1bc8eEP5RV","note":"batch pricing = 50% of standard"},"stage1_raw":"```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 2007,\n      \"finding\": \"Wwtr1 knockout mice develop glomerulocystic kidney disease with reduced/shorter cilia in cyst-lining cells, and siRNA knockdown of Wwtr1 in mIMCD3 renal collecting duct cells recapitulates loss of cilia integrity and downregulation of cilia-associated genes (Tg737, Kif3a, Dctn5, Pkhd1, Ofd1), establishing Wwtr1 as critical for renal cilia integrity.\",\n      \"method\": \"Homologous recombination knockout mouse, siRNA knockdown in mIMCD3 cells, RT-PCR for cilia genes\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — clean KO with defined cellular phenotype, corroborated by siRNA in cell line with multiple gene readouts, replicated across two experimental systems\",\n      \"pmids\": [\"17251353\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2009,\n      \"finding\": \"Wwtr1/TAZ physically interacts with the transcription factor Glis3 via a P/LPXY motif in the C-terminus of Glis3, and Wwtr1 enhances Glis3-mediated transcriptional activation, functioning as a coactivator; mutations in the P/LPXY motif abrogate both the interaction and Glis3 transcriptional activity.\",\n      \"method\": \"Co-immunoprecipitation, transcriptional reporter assays, site-directed mutagenesis of P/LPXY motif\",\n      \"journal\": \"Molecular and cellular biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 / Moderate — reciprocal interaction demonstrated with mutagenesis validation and functional transcriptional readout in a single rigorous study\",\n      \"pmids\": [\"19273592\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2012,\n      \"finding\": \"GSK3 phosphorylates an N-terminal phosphodegron in TAZ/WWTR1, causing phosphorylated TAZ to bind the β-TrCP subunit of the SCF(β-TrCP) E3 ubiquitin ligase, leading to TAZ ubiquitylation and proteasomal degradation. This pathway is activated when PI3K signaling is low (allowing GSK3 activity), and TAZ levels are elevated in PTEN-mutant cells with high PI3K activity.\",\n      \"method\": \"In vitro kinase assay, co-immunoprecipitation, ubiquitylation assay, site-directed mutagenesis of phosphodegron, western blotting in PTEN mutant cancer cells\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Moderate — in vitro kinase assay plus mutagenesis plus co-IP with functional degradation readout, single lab but multiple orthogonal methods\",\n      \"pmids\": [\"22692215\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"The WWTR1(TAZ)-CAMTA1 fusion oncoprotein localizes constitutively to the nucleus (escaping normal cytoplasmic retention/14-3-3 binding/degradation), activates a TAZ-like transcriptional program, confers resistance to anoikis, and induces oncogenic transformation in cells.\",\n      \"method\": \"Subcellular fractionation/immunofluorescence, soft agar colony formation, anoikis resistance assays, transcriptional profiling\",\n      \"journal\": \"Oncogene\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — multiple functional assays (localization, transformation, anoikis) with mechanistic explanation; single lab with orthogonal methods\",\n      \"pmids\": [\"25961935\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"Hepatocyte TAZ/WWTR1 promotes NASH by activating TEAD-dependent transcription of Indian hedgehog (Ihh), a secreted factor that activates fibrogenic genes in hepatic stellate cells; silencing hepatocyte TAZ prevented/reversed hepatic inflammation, hepatocyte death, and fibrosis (but not steatosis) in murine NASH models.\",\n      \"method\": \"Hepatocyte-specific siRNA knockdown and overexpression in mouse NASH models, reporter assays for TEAD-Ihh axis, in vitro/in vivo mechanistic studies\",\n      \"journal\": \"Cell metabolism\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — genetic gain- and loss-of-function in vivo with specific mechanistic pathway (TAZ→TEAD→Ihh→stellate cell fibrogenesis) and multiple orthogonal readouts\",\n      \"pmids\": [\"28068223\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"In zebrafish, Wwtr1 (with Yap1) is specifically localized to presumptive epidermis and notochord, and regulates posterior body extension and epidermal fin fold morphogenesis by controlling Fibronectin assembly underneath the presumptive epidermis and surrounding the notochord.\",\n      \"method\": \"Zebrafish loss-of-function (mutant/morpholino), live imaging, immunofluorescence for Fibronectin assembly, tissue-specific localization\",\n      \"journal\": \"eLife\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — clean genetic loss-of-function with defined cellular/molecular phenotype (Fibronectin assembly) and direct localization experiments\",\n      \"pmids\": [\"29283341\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"In zebrafish, Wwtr1 establishes compact wall architecture necessary for cardiac trabeculation; loss of wwtr1 causes disorganized cortical actin and abnormal cell-cell junctions in compact layer cardiomyocytes. Additionally, Nrg/Erbb2 signaling promotes nuclear export of Wwtr1 in cardiomyocytes, negatively regulating its nuclear activity.\",\n      \"method\": \"Zebrafish genetic loss-of-function, mosaic analysis, immunofluorescence for actin/junctions, pharmacological/genetic manipulation of Nrg/Erbb2 signaling, subcellular localization of Wwtr1\",\n      \"journal\": \"Development (Cambridge, England)\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — mosaic analysis plus signaling manipulation plus localization studies, multiple orthogonal approaches in single study\",\n      \"pmids\": [\"29773645\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"TAZ/WWTR1 acts as a transcriptional modifier of NKX2-1 in the lung: co-expression of TAZ/WWTR1 restores transactivation of a lung-specific promoter by a C-terminal NKX2-1 mutant (but not an N-terminal mutant), and both NKX2-1 mutants physically interact equally with TAZ/WWTR1; this implicates TAZ in the lung phenotype of brain-lung-thyroid syndrome.\",\n      \"method\": \"Co-immunoprecipitation, luciferase reporter assays, confocal microscopy, site-directed mutagenesis\",\n      \"journal\": \"The Journal of clinical endocrinology and metabolism\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Weak — Co-IP and reporter assay with mutagenesis, single lab, moderate mechanistic depth\",\n      \"pmids\": [\"29294041\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"TEAD4, YAP1, and WWTR1 directly repress Sox2 transcription prior to the 16-cell stage in mouse embryos, preventing premature activation of pluripotency; this repression is sensitive to LATS kinase activity even though LATS does not normally limit YAP1/WWTR1/TEAD4 activity at these stages.\",\n      \"method\": \"Mouse embryo genetic knockouts (Yap1, Wwtr1, Tead4), reporter assays for direct transcriptional repression of Sox2, pharmacological LATS inhibition\",\n      \"journal\": \"Development (Cambridge, England)\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — clean genetic loss-of-function in embryos with direct transcriptional repression assay and LATS dependency test; multiple orthogonal approaches\",\n      \"pmids\": [\"31444221\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"WWTR1(TAZ)-CAMTA1 expression in endothelial cells is sufficient to drive formation of EHE-like vascular tumors; constitutively active TAZ similarly drives EHE-like tumors. The TAZ-CAMTA1 fusion requires its interaction with TEAD to mediate transformation, as disruption of the TAZ-CAMTA1–TEAD interaction or dominant-negative TEAD expression inhibits tumor formation in vivo.\",\n      \"method\": \"Endothelial-specific conditional mouse model, dominant-negative TEAD expression, genetic disruption of TEAD-binding domain, histological/immunohistochemical characterization\",\n      \"journal\": \"Genes & development\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — two complementary in vivo genetic models with mechanistic pathway definition (TEAD-dependency), corroborated by companion paper\",\n      \"pmids\": [\"33766984\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"The WWTR1(TAZ)-CAMTA1 gene fusion knocked into the endogenous Wwtr1 locus by Cre activation is sufficient to drive EHE tumor formation with specificity; activated TAZ produces indistinguishable EHE-like tumors, establishing constitutive TAZ activation as the core oncogenic mechanism.\",\n      \"method\": \"Conditional knock-in mouse model targeting Wwtr1 locus, Cre-activation, histology, immunohistochemistry, genetic analysis\",\n      \"journal\": \"Genes & development\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — first knock-in conditional model at endogenous locus, genetic sufficiency rigorously established; replicated across two concurrent publications\",\n      \"pmids\": [\"33766982\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"Zebrafish foxc1a directly binds the wwtr1 promoter at three sites and transcriptionally activates wwtr1 expression; overexpression of wwtr1 mRNA rescues ventricular chamber maturation defects in foxc1a-null embryos, placing wwtr1 as a direct downstream target of Foxc1a in cardiac development.\",\n      \"method\": \"Dual-luciferase assay, chromatin immunoprecipitation (ChIP), mRNA overexpression rescue experiment in zebrafish\",\n      \"journal\": \"Journal of genetics and genomics\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP plus luciferase plus mRNA rescue in a single study, single lab\",\n      \"pmids\": [\"34923164\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"SORBS3 depletion increases F-actin structures which compete with YAP1-WWTR1/TAZ for binding to AMOT (angiomotin) proteins in the cytosol; unbound YAP1-WWTR1/TAZ translocates to the nucleus and upregulates target genes (including myosin- and actin-related genes) to promote autophagosome formation.\",\n      \"method\": \"siRNA knockdown of SORBS3, F-actin manipulation, nuclear/cytoplasmic fractionation, autophagosome quantification, gene expression analysis\",\n      \"journal\": \"Autophagy\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 / Weak — knockdown with subcellular localization and functional readout but pathway inference based on competition assay without direct binding reconstitution; single lab\",\n      \"pmids\": [\"35822241\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"ZO-2/Tjp2 negatively regulates Yap and Wwtr1/Taz protein expression in hepatocytes; loss of Tjp2 upregulates Yap and Wwtr1/Taz protein, and DDC-diet-induced hepatocyte-to-cholangiocyte transdifferentiation in Tjp2 cKO mice requires Yap and Wwtr1/Taz activity.\",\n      \"method\": \"Liver-specific Tjp2 conditional knockout mice, DDC diet challenge, Western blot for Yap/Taz protein, genetic epistasis (hepatocyte vs. cholangiocyte-specific deletion)\",\n      \"journal\": \"NPJ Regenerative medicine\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — clean conditional KO with epistasis (cell-type specific deletion) and protein-level readout, single lab\",\n      \"pmids\": [\"36151109\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"WWTR1/TAZ nuclear localization mediates mesothelial-mesenchymal transition (MMT) induced by lysophosphatidic acid (LPA) and stiff extracellular matrix; siRNA knockdown of Taz suppressed LPA-induced MMT and MMT on stiff hydrogels. TGF-β1 signaling inhibition did not suppress stiffness-induced MMT, indicating TAZ acts downstream of mechanical signals independently of TGF-β1 in this context.\",\n      \"method\": \"siRNA knockdown of Taz, hydrogels of defined stiffness, immunofluorescence for TAZ nuclear localization, LPA and TGF-β1 treatment, myofibroblast differentiation assays\",\n      \"journal\": \"Journal of cellular physiology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 / Moderate — siRNA knockdown with direct localization imaging and functional MMT readout; mechanostiffness gradient plus chemical perturbation, single lab\",\n      \"pmids\": [\"35445400\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"WWTR1 S89W somatic mutation reduces binding of TAZ to 14-3-3 proteins, leading to constitutive nuclear translocation of TAZ, Hippo pathway repression, and acquisition of oncogenic phenotypes (increased proliferation, migration, colony formation, tumorigenesis in vivo); these effects are reversed by YAP/TAZ inhibition with verteporfin.\",\n      \"method\": \"In vitro functional assays (proliferation, migration, colony formation), 14-3-3 binding assay, subcellular fractionation/immunofluorescence, xenograft mouse model, verteporfin treatment\",\n      \"journal\": \"The Journal of pathology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — multiple orthogonal functional assays plus binding assay plus in vivo xenograft, single lab; mutation mechanistically linked to 14-3-3 dissociation\",\n      \"pmids\": [\"35411948\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"WWTR1 promotes trophoblast stem cell self-renewal, is required for cytotrophoblast differentiation to extravillous trophoblasts (EVTs), and prevents induction of the syncytiotrophoblast (STB) fate; mechanistically, WWTR1 fine-tunes trophoblast fate by directly regulating WNT signaling components.\",\n      \"method\": \"shRNA knockdown and overexpression in human trophoblast stem cells and primary CTBs, placental explants, single-cell RNA sequencing, mechanistic WNT pathway analysis\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — loss- and gain-of-function in multiple human trophoblast systems with scRNA-seq pathway analysis; single lab but orthogonal methods\",\n      \"pmids\": [\"36037374\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"Polycystin-1 (PC1) and Wwtr1 have interdependent (additive/cooperative) mechanosensing functions in osteoblasts; double osteoblast-specific conditional knockout of Pkd1 and Wwtr1 shows greater reductions in bone mass, periosteal mineral apposition, and impaired mechanical loading responses than either single KO, and resistance to the anabolic mechanomimetic MS2 requires both genes.\",\n      \"method\": \"Osteoblast-specific conditional double knockout mice, micro-CT, mechanical loading assay, pharmacological mechanomimetic (MS2), gene expression profiling; genetic epistasis\",\n      \"journal\": \"Bone research\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — clean genetic epistasis with quantitative bone phenotyping and pharmacological validation; multiple orthogonal approaches, single lab\",\n      \"pmids\": [\"37884491\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"In cardiac myofibroblasts, Yap/Wwtr1 depletion (but not Yap depletion alone) attenuates fibrosis and improves cardiac function post-infarction; Ccn3 is identified as a downstream target of Yap/Wwtr1 in myofibroblasts, and recombinant CCN3 administration aggravates cardiac fibrosis, establishing Ccn3 as a mediator of Yap/Wwtr1-driven adverse cardiac remodeling.\",\n      \"method\": \"Myofibroblast-specific conditional double KO (Yap;Wwtr1;Postn-Cre), myocardial infarction model, scRNA-seq, siRNA knockdown in vitro, recombinant CCN3 administration in vivo\",\n      \"journal\": \"Frontiers in cardiovascular medicine\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — conditional genetic KO with downstream effector validation by gain-of-function (recombinant CCN3) and in vitro siRNA; multiple orthogonal approaches, single lab\",\n      \"pmids\": [\"36998974\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"Wwtr1-deficient mice display reduced corneal endothelial cell (CEnC) density, abnormal CEnC morphology, softer Descemet's membrane, altered Na/K-ATPase and ZO-1 localization, and impaired CEnC wound healing, modeling Fuchs' endothelial corneal dystrophy; nuclear WWTR1/TAZ protein is elevated and mislocalized surrounding guttae in FECD patients.\",\n      \"method\": \"Wwtr1 knockout mouse model, atomic force microscopy, immunofluorescence, cryoinjury/keratectomy wound healing assay, human CEnC analysis\",\n      \"journal\": \"Investigative ophthalmology & visual science\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 / Moderate — clean KO with multiple phenotypic readouts and human tissue correlation; functional wound healing assay; single lab\",\n      \"pmids\": [\"37074694\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"Wnt16 promotes vascular smooth muscle contractile phenotype via Taz (Wwtr1) activation; siRNA targeting Taz (but not Yap1) phenocopies Wnt16 deficiency, Taz siRNA inhibits contractile gene upregulation by Wnt16, and Wnt16 stimulates Taz binding to Acta2 chromatin with H3K4me3 methylation; TEAD cognates in the Acta2 promoter are required for transcriptional responses to Wnt16/Taz.\",\n      \"method\": \"siRNA knockdown, ChIP assay, promoter reporter assay, verteporfin inhibition, mitochondrial respiration assay, mouse genetic model\",\n      \"journal\": \"Endocrinology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP plus reporter assay plus siRNA with functional contractility readout; multiple orthogonal methods, single lab\",\n      \"pmids\": [\"38123514\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"WWTR1/TAZ nuclear localization is required for sensitization of p53-proficient colorectal cancer cells to oxaliplatin; nuclear TAZ accumulates following oxaliplatin-induced core Hippo pathway downregulation and is required for increased sensitivity in an effect independent of p73 but dependent on nuclear relocalization and p53 status.\",\n      \"method\": \"Loss-of-function (siRNA/drug), nuclear fractionation, co-treatment with YAP/TAZ inhibitors (verteporfin, CA3), multiple colorectal cell lines with known p53 status\",\n      \"journal\": \"BMC cancer\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 / Moderate — siRNA knockdown plus pharmacological inhibition across multiple cell lines with mechanistic pathway dissection; single lab\",\n      \"pmids\": [\"38741073\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"WWTR1 transcriptionally upregulates TGF-β receptor type II (TβRII) expression by directly binding its promoter in osteoblasts; IFT20 stabilizes TβRII protein by blocking c-Cbl-mediated ubiquitination; double deletion of IFT20 and Wwtr1 in osteoblasts synergistically inhibits osteogenesis and promotes adipogenesis and osteoclastogenesis.\",\n      \"method\": \"Conditional double knockout mice, chromatin immunoprecipitation (ChIP), ubiquitination assay, Co-immunoprecipitation, OVX/HFD osteoporosis models, gene expression analysis\",\n      \"journal\": \"Research square (preprint)\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — ChIP plus ubiquitination assay plus Co-IP with in vivo mouse model; preprint status lowers certainty\",\n      \"pmids\": [\"38562782\"],\n      \"is_preprint\": true\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"The novel WWTR1::TFE3 fusion protein promotes colony formation in soft agar (oncogenic transformation); this transformative effect requires the WWTR1 domain's ability to bind TEAD transcription factors, as mutation of the TEAD-binding domain of WWTR1 in the fusion abrogates transformation.\",\n      \"method\": \"Soft agar colony formation assay in NIH3T3 cells, site-directed mutagenesis of TEAD-binding domain of WWTR1 portion\",\n      \"journal\": \"Genes, chromosomes & cancer\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Weak — in vitro transformation assay with mutagenesis; single case study with functional validation; single lab\",\n      \"pmids\": [\"38380774\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2026,\n      \"finding\": \"Wwtr1 (TAZ) deficiency in corneal endothelial cells leads to progressive ER stress, mitochondrial structural and functional abnormalities, impaired Na+/K+ ATPase localization, and age-dependent dysregulation of autophagy and extracellular matrix organization genes, establishing a mechanistic link between disrupted mechanotransduction and organelle stress in CEnC degeneration.\",\n      \"method\": \"Single-cell transcriptomics (scRNA-seq), transmission electron microscopy, immunofluorescence, Wwtr1 knockout mouse at two age points\",\n      \"journal\": \"bioRxiv (preprint)\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — scRNA-seq plus TEM plus immunofluorescence in knockout model at two ages; preprint status, single lab\",\n      \"pmids\": [\"41756894\"],\n      \"is_preprint\": true\n    }\n  ],\n  \"current_model\": \"WWTR1 (TAZ) is a WW-domain transcriptional coactivator and Hippo pathway effector that, when unphosphorylated, localizes to the nucleus and activates TEAD-family transcription factors to regulate organ size, cell fate, and mechanosensing; it is subject to multi-layered post-translational regulation including LATS-mediated phosphorylation causing 14-3-3 binding and cytoplasmic sequestration, and GSK3-mediated phosphorylation of an N-terminal phosphodegron enabling SCF(β-TrCP)-dependent ubiquitylation and proteasomal degradation downstream of PI3K/AKT signaling; in tissues it controls renal cilia integrity, cardiac wall maturation, trophoblast fate, osteoblast mechanosensing, hepatic fibrosis (via TEAD-driven Indian hedgehog secretion), and corneal endothelial homeostasis, while the oncogenic WWTR1-CAMTA1 gene fusion produces constitutive nuclear TAZ activity that drives epithelioid hemangioendothelioma through TEAD-dependent transcription.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"WWTR1 (TAZ) is a transcriptional coactivator that converts mechanical and developmental signals into TEAD-dependent gene programs governing organ size, cell fate, and tissue mechanosensing [#16, #4]. It functions by binding transcription factors through a WW/P-LPXY motif interface — demonstrated for Glis3, where TAZ enhances Glis3-driven transcription and motif mutations abolish both binding and activity [#1] — and acts as a modifier of NKX2-1 transactivation [#7]. TAZ activity is gated by its subcellular localization: GSK3 phosphorylates an N-terminal phosphodegron that recruits the SCF(\\u03b2-TrCP) E3 ligase for ubiquitylation and proteasomal degradation when PI3K signaling is low, so that PTEN loss stabilizes TAZ [#2], while 14-3-3 binding and competition with AMOT/F-actin retain TAZ in the cytoplasm; relief of these constraints drives nuclear translocation and target-gene activation [#15, #12]. In tissues, nuclear TAZ controls renal cilia integrity [#0], compact-wall and trabecular cardiac architecture via Fibronectin assembly and Nrg/Erbb2-regulated nuclear export [#5, #6], trophoblast self-renewal and differentiation through WNT components [#16], osteoblast mechanosensing in concert with Polycystin-1 and through transcriptional control of T\\u03b2RII [#17, #22], and corneal endothelial homeostasis [#19]. TAZ drives fibrosis by activating TEAD-dependent transcription of secreted Indian hedgehog in hepatocytes and of Ccn3 in cardiac myofibroblasts [#4, #18]. Constitutive nuclear activation is oncogenic: the WWTR1-CAMTA1 and WWTR1::TFE3 fusions and the 14-3-3-disrupting S89W mutation all produce TEAD-dependent transformation and tumor formation [#9, #10, #23, #15].\",\n  \"teleology\": [\n    {\n      \"year\": 2007,\n      \"claim\": \"Established that WWTR1 has an essential tissue-level function, linking it to renal ciliary biology before its transcriptional mechanism was resolved.\",\n      \"evidence\": \"Knockout mouse with glomerulocystic kidney phenotype plus siRNA in mIMCD3 cells downregulating cilia genes\",\n      \"pmids\": [\"17251353\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not identify the transcription factors or direct target genes mediating cilia control\", \"Mechanism connecting TAZ to specific cilia genes (Pkhd1, Ofd1) left undefined\"]\n    },\n    {\n      \"year\": 2009,\n      \"claim\": \"Defined the molecular basis of TAZ coactivation by showing it docks onto a partner transcription factor via a P/LPXY motif to enhance transcription.\",\n      \"evidence\": \"Co-IP, reporter assays, and P/LPXY motif mutagenesis with Glis3\",\n      \"pmids\": [\"19273592\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Limited to Glis3; generality of the motif interface to other partners not tested here\", \"No structural detail of the WW-domain interaction\"]\n    },\n    {\n      \"year\": 2012,\n      \"claim\": \"Resolved a degradation arm of TAZ regulation, showing protein abundance is controlled by a GSK3 phosphodegron feeding SCF(\\u03b2-TrCP), linking TAZ stability to PI3K/PTEN status.\",\n      \"evidence\": \"In vitro kinase, co-IP, ubiquitylation and phosphodegron mutagenesis in PTEN-mutant cells\",\n      \"pmids\": [\"22692215\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Relationship between this degron and LATS/14-3-3 cytoplasmic retention not integrated\", \"Quantitative contribution to TAZ levels in normal tissue unknown\"]\n    },\n    {\n      \"year\": 2015,\n      \"claim\": \"Identified constitutive nuclear localization as the core oncogenic mechanism of the WWTR1-CAMTA1 fusion, escaping normal cytoplasmic restraint.\",\n      \"evidence\": \"Subcellular fractionation, soft-agar transformation, anoikis-resistance assays and transcriptional profiling\",\n      \"pmids\": [\"25961935\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"TEAD-dependency not yet formally tested in this study\", \"Cell-of-origin for tumor formation not established here\"]\n    },\n    {\n      \"year\": 2017,\n      \"claim\": \"Connected TAZ to extracellular matrix morphogenesis, showing it controls Fibronectin assembly during body extension and fin-fold formation.\",\n      \"evidence\": \"Zebrafish loss-of-function with live imaging and Fibronectin immunofluorescence\",\n      \"pmids\": [\"29283341\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Transcriptional targets driving Fibronectin assembly not identified\", \"Whether effect is cell-autonomous left open\"]\n    },\n    {\n      \"year\": 2018,\n      \"claim\": \"Established TAZ's role in cardiac compact-wall architecture and revealed Nrg/Erbb2 signaling as an upstream regulator of TAZ nuclear export.\",\n      \"evidence\": \"Zebrafish mosaic analysis, junction/actin imaging, and Nrg/Erbb2 manipulation with TAZ localization\",\n      \"pmids\": [\"29773645\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Molecular link between Erbb2 signaling and TAZ export machinery undefined\", \"Direct target genes in cardiomyocytes not identified\"]\n    },\n    {\n      \"year\": 2018,\n      \"claim\": \"Showed TAZ modifies NKX2-1 transactivation in lung, extending its coactivator role to a tissue-specific transcription factor and a human syndrome.\",\n      \"evidence\": \"Co-IP, luciferase reporter assays and mutagenesis of NKX2-1 domains\",\n      \"pmids\": [\"29294041\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Reporter-based; in vivo relevance to brain-lung-thyroid syndrome not directly tested\", \"Binding equal for both mutants leaves functional discrimination mechanism unclear\"]\n    },\n    {\n      \"year\": 2019,\n      \"claim\": \"Demonstrated TAZ can act as a transcriptional repressor in early embryos, repressing Sox2 with TEAD4/YAP1 to restrain premature pluripotency.\",\n      \"evidence\": \"Mouse embryo knockouts, Sox2 repression reporter assays and LATS inhibition\",\n      \"pmids\": [\"31444221\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Mechanism converting TAZ-TEAD from activator to repressor not defined\", \"Stage-specific LATS insensitivity unexplained\"]\n    },\n    {\n      \"year\": 2016,\n      \"claim\": \"Defined a paracrine fibrotic axis in which hepatocyte TAZ drives TEAD-dependent Indian hedgehog secretion to activate stellate-cell fibrogenesis.\",\n      \"evidence\": \"Hepatocyte-specific gain/loss-of-function in mouse NASH with TEAD-Ihh reporter assays\",\n      \"pmids\": [\"28068223\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Upstream signal activating hepatocyte TAZ in NASH not identified\", \"Effect on steatosis absent, leaving lipid arm separate\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Proved that constitutive TAZ activation is sufficient to cause EHE in vivo and that transformation strictly requires the TAZ-TEAD interaction.\",\n      \"evidence\": \"Endothelial conditional and knock-in mouse models with dominant-negative TEAD and TEAD-binding-domain disruption\",\n      \"pmids\": [\"33766984\", \"33766982\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Specific TEAD target genes driving endothelial transformation not enumerated\", \"Why endothelium is the susceptible lineage unresolved\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Placed wwtr1 as a direct transcriptional target of Foxc1a in cardiac chamber maturation, identifying an upstream activator of TAZ expression.\",\n      \"evidence\": \"ChIP, dual-luciferase and wwtr1 mRNA rescue in foxc1a-null zebrafish\",\n      \"pmids\": [\"34923164\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Conservation of Foxc1a-wwtr1 regulation in mammals untested\", \"Whether transcriptional vs post-translational control dominates in this context unclear\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Linked TAZ nuclear shuttling to cytoskeletal/AMOT competition and a new autophagy output downstream of SORBS3.\",\n      \"evidence\": \"SORBS3 knockdown, F-actin manipulation, fractionation and autophagosome quantification\",\n      \"pmids\": [\"35822241\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Competition inferred without direct binding reconstitution\", \"Direct TAZ targets driving autophagosome formation not validated\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Showed ZO-2/Tjp2 negatively regulates TAZ protein levels and that TAZ is required for hepatocyte-to-cholangiocyte transdifferentiation.\",\n      \"evidence\": \"Liver Tjp2 conditional KO, DDC challenge, Western blot and cell-type-specific epistasis\",\n      \"pmids\": [\"36151109\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Mechanism by which Tjp2 controls TAZ protein abundance not defined\", \"Direct target genes of transdifferentiation not identified\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Established TAZ as the dominant effector of matrix-stiffness and LPA-induced mesothelial-mesenchymal transition, acting independently of TGF-\\u03b21.\",\n      \"evidence\": \"siRNA knockdown, defined-stiffness hydrogels, TAZ localization imaging and TGF-\\u03b21 inhibition\",\n      \"pmids\": [\"35445400\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Mechanotransduction machinery upstream of TAZ in mesothelium undefined\", \"Target genes driving MMT not mapped\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Identified an activating point mutation (S89W) that disrupts 14-3-3 binding to drive constitutive nuclear TAZ and oncogenic phenotypes, mechanistically mirroring the fusion oncoproteins.\",\n      \"evidence\": \"14-3-3 binding assay, fractionation, in vitro transformation assays, xenograft and verteporfin reversal\",\n      \"pmids\": [\"35411948\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Tumor types where S89W occurs not delineated here\", \"Whether residual LATS regulation persists not tested\"]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Defined TAZ as a fate-determining regulator in human trophoblast, promoting self-renewal and EVT differentiation while blocking syncytiotrophoblast fate via WNT components.\",\n      \"evidence\": \"shRNA/overexpression in trophoblast stem cells and explants with scRNA-seq\",\n      \"pmids\": [\"36037374\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Direct WNT-component targets bound by TAZ not enumerated\", \"Whether action is TEAD-dependent in trophoblast untested\"]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"Demonstrated cooperative mechanosensing between TAZ and Polycystin-1 in osteoblasts, with both required for anabolic loading responses.\",\n      \"evidence\": \"Osteoblast double conditional KO, micro-CT, mechanical loading and mechanomimetic MS2\",\n      \"pmids\": [\"37884491\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Molecular link between PC1 and TAZ activation not defined\", \"Shared transcriptional targets not identified\"]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"Identified Ccn3 as a TAZ-driven mediator of adverse cardiac fibrotic remodeling, defining a myofibroblast effector downstream of YAP/TAZ.\",\n      \"evidence\": \"Myofibroblast double conditional KO, MI model, scRNA-seq and recombinant CCN3 administration\",\n      \"pmids\": [\"36998974\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Direct binding of TAZ to the Ccn3 locus not shown\", \"Whether YAP and TAZ are interchangeable here not fully resolved\"]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"Established TAZ as essential for corneal endothelial homeostasis and modeled Fuchs' dystrophy, with elevated nuclear TAZ seen in patient tissue.\",\n      \"evidence\": \"Wwtr1 KO mouse, atomic force microscopy, wound-healing assay and human CEnC analysis\",\n      \"pmids\": [\"37074694\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Causal link between TAZ loss and guttae formation not mechanistically resolved\", \"Transcriptional targets in endothelium not mapped\"]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"Showed Wnt16 signals through TAZ to upregulate the vascular smooth muscle contractile program via TAZ binding at the Acta2 promoter and TEAD cognate sites.\",\n      \"evidence\": \"siRNA, ChIP, promoter reporter, verteporfin and mouse genetic model\",\n      \"pmids\": [\"38123514\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Link between Wnt16 receptor signaling and TAZ activation undefined\", \"YAP non-redundancy mechanism unclear\"]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"Showed nuclear TAZ relocalization sensitizes p53-proficient colorectal cancer cells to oxaliplatin, implicating TAZ in chemotherapy response.\",\n      \"evidence\": \"siRNA/drug loss-of-function, nuclear fractionation and YAP/TAZ inhibitors across p53-defined cell lines\",\n      \"pmids\": [\"38741073\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"TAZ target genes mediating chemosensitivity not identified\", \"Mechanistic basis of p53 dependence unresolved\"]\n    },\n    {\n      \"year\": 2024,\n      \"claim\": \"Extended the oncogenic fusion paradigm to WWTR1::TFE3, confirming TEAD-binding is the shared requirement for fusion-driven transformation.\",\n      \"evidence\": \"Soft-agar transformation in NIH3T3 with TEAD-binding-domain mutagenesis\",\n      \"pmids\": [\"38380774\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"In vivo tumorigenicity not tested\", \"Contribution of the TFE3 partner to the program undefined\"]\n    },\n    {\n      \"year\": 2024,\n      \"claim\": \"Defined a transcriptional-plus-stabilization circuit in which TAZ activates T\\u03b2RII transcription and cooperates with IFT20 to control bone fate.\",\n      \"evidence\": \"ChIP, ubiquitination/Co-IP and osteoblast double KO in osteoporosis models (preprint)\",\n      \"pmids\": [\"38562782\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Preprint, awaiting peer review\", \"Direct interplay between IFT20-stabilized T\\u03b2RII and TAZ transcriptional output not fully separated\"]\n    },\n    {\n      \"year\": 2026,\n      \"claim\": \"Linked TAZ-dependent mechanotransduction to organelle stress, showing its loss causes ER stress, mitochondrial defects and dysregulated autophagy/ECM genes in corneal endothelium.\",\n      \"evidence\": \"scRNA-seq, TEM and immunofluorescence in aged Wwtr1 KO mice (preprint)\",\n      \"pmids\": [\"41756894\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"Preprint, awaiting peer review\", \"Direct transcriptional targets connecting TAZ to organelle homeostasis not identified\"]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"How TAZ-TEAD complexes are switched between activating and repressive states across tissues, and what defines lineage-specific target-gene selection, remains unresolved.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"No unified model linking the degron, 14-3-3 and AMOT/cytoskeletal control arms quantitatively\", \"Direct genome-wide TAZ targets in most physiological contexts unmapped\"]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0140110\", \"supporting_discovery_ids\": [1, 4, 8, 16, 20]},\n      {\"term_id\": \"GO:0060090\", \"supporting_discovery_ids\": [1, 7]},\n      {\"term_id\": \"GO:0003677\", \"supporting_discovery_ids\": [4, 20, 22]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005634\", \"supporting_discovery_ids\": [3, 14, 15, 21]},\n      {\"term_id\": \"GO:0005829\", \"supporting_discovery_ids\": [12, 6]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-162582\", \"supporting_discovery_ids\": [2, 6, 12, 20]},\n      {\"term_id\": \"R-HSA-74160\", \"supporting_discovery_ids\": [1, 4, 8, 16, 20]},\n      {\"term_id\": \"R-HSA-1266738\", \"supporting_discovery_ids\": [5, 6, 8, 16, 11]},\n      {\"term_id\": \"R-HSA-1643685\", \"supporting_discovery_ids\": [3, 9, 10, 15, 23]},\n      {\"term_id\": \"R-HSA-392499\", \"supporting_discovery_ids\": [2]}\n    ],\n    \"complexes\": [\"TAZ-TEAD transcriptional complex\"],\n    \"partners\": [\"TEAD4\", \"YAP1\", \"GLIS3\", \"NKX2-1\", \"BTRC\", \"AMOT\", \"YWHA (14-3-3)\", \"CAMTA1\"],\n    \"other_free_text\": []\n  }\n}","audit_flag":null,"evaluation":{"pairwise":"win","faith_supported":6,"faith_total":6,"faith_pct":100.0}}