| 2015 |
TAGLN2 stabilizes cortical F-actin at the immunological synapse (IS) by competing with cofilin to block actin depolymerization, both in vitro and in vivo. TAGLN2 knockout reduced F-actin content and destabilized F-actin ring formation, resulting in decreased LFA-1 activation, cell adhesion, spreading, cytokine production, and cytotoxic effector function in T cells. |
TAGLN2 knockout mouse T cells, in vitro actin depolymerization competition assay with cofilin, live-cell imaging of IS F-actin ring, adhesion/spreading/cytokine/cytotoxicity assays |
The Journal of cell biology |
High |
25869671
|
| 2018 |
TAGLN2 nucleates G-actin polymerization under low-salt conditions through its calponin homology domain and actin-binding loop, which mechanically connect two adjacent G-actin monomers mediating multimeric interactions. Under physiological salt conditions, TAGLN2 blocks Arp2/3 complex binding to actin filaments, thereby inhibiting branched actin nucleation and promoting filopodium-like membrane protrusions in HeLa and T cells. |
In vitro actin polymerization assays under low-salt and physiological conditions, domain deletion/mutation analysis (calponin homology domain and actin-binding loop), Arp2/3 complex binding assay, live-cell imaging of filopodia in HeLa and T cells |
Scientific reports |
High |
29615809
|
| 2011 |
PFTK1 kinase phosphorylates TAGLN2 at serine residues S83 and S163, reducing its actin-binding affinity. In PFTK1-suppressed hepatocellular carcinoma (HCC) cells, unphosphorylated TAGLN2 shows strong actin-binding and inhibits actin cytoskeleton dynamics, cell invasion, and motility. Knockdown of TAGLN2 in PFTK1-suppressed cells overrides the inhibitory effect on cell invasion/motility, placing TAGLN2 downstream of PFTK1 in an oncogene-tumor suppressor axis. |
2D-PAGE mass spectrometry to identify phosphorylated substrates, site-directed mutagenesis of S83 and S163, PFTK1 knockdown/overexpression, actin polymerization assay, cell invasion and motility assays, epistasis (double knockdown) |
Oncogene |
High |
21577206
|
| 2017 |
TAGLN2 is induced in macrophages by LPS via the NF-κB pathway. TAGLN2-deficient macrophages show defective phagocytosis of IgM/IgG-opsonized red blood cells and bacteria, with down-regulation of PI3K/AKT and Ras-ERK signaling pathways involved in actin rearrangement. TAGLN2-/- mice show higher mortality after bacterial infection than wild-type littermates. |
TAGLN2 knockout macrophages (TAGLN2-/- mice), phagocytosis assays (IgM- and IgG-coated sheep RBCs and bacteria), PI3K/AKT and Ras-ERK pathway analysis, NF-κB pathway inhibition, in vivo bacterial infection survival assay |
Scientific reports |
High |
28821818
|
| 2018 |
TAGLN2 is physically associated with LFA-1 and potentiates 'inside-out' activation of LFA-1 to enhance immunological synapse formation between T cells and tumor cells. A cell-permeable recombinant TAGLN2 (TG2P, fused with protein transduction domain) enhanced cytotoxic T cell killing of ICAM-1-positive tumor cells and reduced tumor growth in mice. The TAGLN2-actin-LFA-1 axis also enhanced CAR-T cell killing of Raji B-lymphoma cells. |
Co-immunoprecipitation (TAGLN2-LFA-1 interaction), recombinant protein transduction (TG2P), OTI TCR CD8+ T cell cytotoxicity assays against ICAM-1+/- tumor cells, in vivo tumor growth assay, CAR-T cell killing assay |
Oncoimmunology |
Medium |
30524895
|
| 2022 |
Lysine-40 succinylation (K40succ) of TAGLN2 promotes glioma angiogenesis and tumor growth. A succinylation-mimetic mutant (TAGLN2-K40E) promotes angiogenesis, VE-cadherin expression, actin cytoskeleton remodeling, and tumor cell adhesion/metastasis in vitro and in vivo. TAGLN2 interacts with TMSB4X (co-localizing in nucleus and cytoplasm), and this interaction is dependent on WT TAGLN2 but not the non-succinylated K40A mutant. Inhibition of TMSB4X attenuates TAGLN2-K40succ-induced proliferation and migration. |
TMT labeling and LC-MS/MS to identify K40 succinylation, succinylation-mimetic (K40E) and non-succinylatable (K40R/K40A) mutants, in vitro angiogenesis assays, in vivo xenograft tumors, immunofluorescence co-localization of TAGLN2 and TMSB4X |
Cancer gene therapy |
Medium |
36131066
|
| 2022 |
TAGLN2 binds directly to E-cadherin (shown by co-immunoprecipitation and microscale thermophoresis). Decreased TAGLN2 expression reduces cleavage of the E-cadherin extracellular domain, impairing trophoblast migration, invasion, and fusion, and reducing soluble E-cadherin levels that affect placental blood vessel formation. TAGLN2 overexpression (adenoviral) in pregnant mice induced a PE-like syndrome. |
Co-immunoprecipitation and microscale thermophoresis (TAGLN2-E-cadherin binding), TAGLN2 knockdown in trophoblast cell lines, migration/invasion/fusion assays, E-cadherin cleavage analysis, in vivo adenoviral TAGLN2 overexpression in pregnant mice |
Frontiers in cell and developmental biology |
Medium |
35281112
|
| 2016 |
TAGLN2 positively regulates hepatitis B virus (HBV) transcription and replication: ectopic TAGLN2 expression in HepG2 cells enhanced HBV transcription and replication, while TAGLN2 knockdown had the opposite effect. The viral protein HBx induced TAGLN2 expression in a dose-dependent manner in a Tet-on HBx cell line. |
Ectopic expression and knockdown of TAGLN2 in HepG2 and HepG2.2.15 cells, HBV transcription/replication assays (qRT-PCR for HBc, HBs, HBx), Tet-on HBx inducible system |
Biochemical and biophysical research communications |
Medium |
27402267
|
| 2021 |
In zebrafish, klf6a transcription factor directly drives tagln2 expression as a downstream target during caudal vein pruning. The klf6a-tagln2 axis regulates endothelial cell rearrangement (nucleus migration, junction remodeling, actin cytoskeleton dynamics) required for vessel pruning. |
Zebrafish genetic loss-of-function (klf6a disruption), epistasis placing tagln2 downstream of klf6a in vessel pruning, live imaging of EC rearrangement, actin cytoskeleton analysis in transgenic embryos |
PLoS genetics |
Medium |
34319989
|
| 2024 |
TAGLN2 interacts with ERK1/2 (shown by Co-IP and LC-MS/MS). TAGLN2 knockdown decreases p-ERK1/2 nuclear expression, while overexpression increases it. TAGLN2 regulates MGMT expression downstream of ERK, contributing to temozolomide resistance. NF-κB regulates TAGLN2 expression (validated by ChIP-PCR). TAGLN2 also promotes proneural-to-mesenchymal transition in GBM. |
Co-immunoprecipitation, LC-MS/MS, TAGLN2 knockdown/overexpression in GBM cells, p-ERK1/2 nuclear localization analysis, MGMT expression assays, chromatin immunoprecipitation (ChIP-PCR) for NF-κB binding to TAGLN2 promoter, intracranial xenograft mouse models |
Cancer letters |
Medium |
38992489
|
| 2021 |
TAGLN2 promotes colorectal cancer cell proliferation, invasion, migration, and EMT by activating STAT3 signaling through ANXA2. TAGLN2 knockdown suppresses STAT3 phosphorylation, and STAT3 inhibitor reverses the pro-tumorigenic effects of TAGLN2 overexpression. ANXA2 expression is positively associated with STAT3. |
TAGLN2 shRNA knockdown and overexpression in CRC cell lines, STAT3 phosphorylation western blot, STAT3 inhibitor rescue experiment, ANXA2-STAT3 association by western blot, proliferation/migration/invasion/EMT assays |
Oncology letters |
Medium |
34466149
|
| 2022 |
TAGLN2 promotes invasion of papillary thyroid carcinoma cells via the Rap1/PI3K/AKT signaling pathway. Rescue experiments validated involvement of this pathway in TAGLN2-mediated invasion. Quantitative proteomics identified ITGB5, LAMC2, CRKL, vimentin, N-cadherin, and E-cadherin as downstream molecules. |
Gain- and loss-of-function in PTC cell lines (K1, TPC-1, BCPAP), gene expression profiling, quantitative proteomics, western blotting, Rap1/PI3K/AKT pathway rescue experiments, invasion/migration/angiogenesis assays |
Endocrine-related cancer |
Medium |
36222755
|
| 2024 |
TAGLN2 upregulates resistance-signature interferon-stimulated genes (ISGs) in gastric cancer by enhancing YBX1-associated ssDNA aggregation and cGAS-STING pathway activation. TAGLN2 modulates YBX1 by recruiting c-Myc and SOX9 to the YBX1 promoter region and by directly interacting with AKT-YBX1, thereby enhancing YBX1 phosphorylation and nuclear translocation. |
Co-IP (TAGLN2-AKT-YBX1 interaction), ChIP assays (c-Myc and SOX9 at YBX1 promoter), ssDNA aggregation assays, cGAS-STING pathway analysis, ISG expression profiling, pharmacological inhibition (Fisetin, MK2206), xenograft tumor models |
Cell death & disease |
Medium |
39168971
|
| 2025 |
TAGLN2 promotes activation of the ANXA2/NF-κB axis in Kupffer cells, contributing to inflammatory response and hepatocyte pyroptosis in acute pancreatitis-induced liver injury. TAGLN2 knockout reduced inflammatory cytokine levels, pyroptosis-related protein expression, and liver dysfunction markers. |
TAGLN2 knockout mice (cerulein-induced AP model), TAGLN2 knockdown in LPS-stimulated Kupffer cells, ANXA2/NF-κB pathway analysis, pyroptosis-related protein expression, cytokine measurement, liver injury markers (ALT, AST) |
Archivum immunologiae et therapiae experimentalis |
Medium |
40472315
|
| 2024 |
TAGLN2 binds directly to ARPC5 (actin-related protein 2/3 complex subunit 5) as confirmed by co-immunoprecipitation and immunofluorescence co-localization. TAGLN2 promotes ARPC5 expression and activates the MEK/ERK signaling pathway; silencing ARPC5 reverses TAGLN2-driven proliferation, invasion, and metastasis of pancreatic cancer cells. |
Co-immunoprecipitation and immunofluorescence (TAGLN2-ARPC5 interaction), TAGLN2 overexpression/knockdown with ARPC5 silencing epistasis, MEK inhibitor (U0126), in vitro and in vivo tumor assays |
Cellular signalling |
Medium |
38744388
|
| 2025 |
CXCR7 physically interacts with TAGLN2 in papillary thyroid carcinoma cells (shown by Co-IP and immunofluorescence co-localization). CXCR7 promotes PTC migration and invasion through TAGLN2 by activating the TGF-β/Smad2 signaling pathway. TAGLN2 knockdown decreases p-Smad2 levels, and CXCR7 re-introduction restores p-Smad2 in TAGLN2-silenced cells. |
Co-immunoprecipitation and immunofluorescence co-localization (CXCR7-TAGLN2), lentiviral cotransfection with TAGLN2 silencing and CXCR7 overexpression, p-Smad2/Smad2 western blot, migration assays in TPC-1 and BCPAP cells |
Frontiers in immunology |
Medium |
41169389
|
| 2026 |
Tumor-derived exosomal TAGLN2 is delivered to endothelial cells where it transcriptionally upregulates NRP1 via c-Jun/SP1 and induces SEMA4D expression. TAGLN2 then interacts with both NRP1 and SEMA4D to form a stable cytoplasmic ternary complex that dually activates YAP (by disrupting NRP1-YAP binding and suppressing Hippo-mediated degradation), independently of the canonical SEMA4D-PlexinB1-RhoA/ROCK pathway. |
Exosome isolation and delivery experiments, ChIP (c-Jun/SP1 at NRP1 promoter), Co-IP (TAGLN2-NRP1-SEMA4D ternary complex), YAP localization/activity assays, in vivo tumor growth and lung metastasis models, combination drug treatment (cisplatin + MK2206) |
Advanced science |
Medium |
41824788
|
| 2014 |
miR-133a directly binds the 3'-UTR of TAGLN2 mRNA (validated by dual-luciferase reporter assay) and suppresses TAGLN2 at both transcriptional and translational levels. TAGLN2 knockout modulates hypoxia-induced apoptosis in cardiomyocytes via the caspase-8 apoptotic pathway. |
Dual-luciferase reporter assay (miR-133a binding to TAGLN2 3'-UTR), TAGLN2 knockout in hypoxic H9c2 cells, caspase-8/-9/-3 and Bcl-2 protein expression analysis |
Molecular and cellular biochemistry |
Low |
25421410
|
| 2018 |
TAGLN2 promotes meningioma cell proliferation, invasion, and survival while inhibiting apoptosis. TAGLN2 knockdown inhibited p-PI3K and p-AKT expression, while overexpression increased them, placing TAGLN2 upstream of the PI3K/AKT signaling pathway in meningioma cells. |
Lentiviral TAGLN2 knockdown and overexpression in CH157 meningioma cells, CCK8, colony formation, transwell invasion, flow cytometry apoptosis assays, p-PI3K and p-AKT western blot |
European review for medical and pharmacological sciences |
Low |
29424888
|