| 2011 |
STAU1-binding sites on target mRNAs can be formed by imperfect base-pairing between Alu elements in the 3' UTR of SMD target mRNAs and complementary Alu elements in cytoplasmic polyadenylated lncRNAs (termed 1/2-sbsRNAs), enabling lncRNAs to transactivate STAU1-mediated mRNA decay (SMD) of specific targets. |
RNA-seq, RNA immunoprecipitation, reporter assays, siRNA knockdown, identification of lncRNA-mRNA Alu duplex formation |
Nature |
High |
21307942
|
| 2013 |
STAU1 binding to inverted repeat Alu elements (IRAlus) in 3' UTRs of mRNAs inhibits nuclear retention of those mRNAs and augments their nuclear export; additionally, 3' UTR IRAlus-bound STAU1 enhances translation by precluding PKR binding, thereby preventing eIF2α phosphorylation and global translational shutdown. |
RNA immunoprecipitation, fractionation (nuclear/cytoplasmic), reporter assays, siRNA knockdown of STAU1/PKR, measurement of eIF2α phosphorylation |
Genes & development |
High |
23824540
|
| 2012 |
TDP-43 physically associates with FMRP and STAU1 to form a functional complex that binds the 3' UTR of SIRT1 mRNA and stabilizes it; knockdown of any one of the three components reduces SIRT1 mRNA and protein levels. |
Co-immunoprecipitation, RNA immunoprecipitation (RIP), RNA pull-down, microarray, siRNA knockdown |
The Journal of biological chemistry |
Medium |
22584570
|
| 2008 |
Stau1 negatively regulates myogenic differentiation in C2C12 myoblasts; Stau1 knockdown increases myogenin mRNA and protein levels and promotes myogenesis, while Upf1 knockdown does not, indicating that Stau1's role in myogenesis is mechanistically distinct from canonical SMD. |
siRNA knockdown, RT-PCR, Western blot, myogenin promoter reporter assay in C2C12 cells |
Genes to cells |
Medium |
18422603
|
| 2011 |
Stau1 binds to the 3' UTR of Dvl2 mRNA and stabilizes it in undifferentiated C2C12 myoblasts; Stau1 knockdown shortens Dvl2 mRNA half-life, and during myogenic differentiation the Stau1-Dvl2 mRNA association decreases, causing Dvl2 downregulation that enables differentiation. |
RNA immunoprecipitation, mRNA half-life assay, reporter assay with Dvl2 3' UTR, siRNA knockdown, Dvl2 overexpression |
Biochemical and biophysical research communications |
Medium |
22166206
|
| 2018 |
STAU1 binds IBDV genomic double-stranded RNA via its N-terminal moiety (residues 1-468) and promotes viral replication by competing with MDA5 for dsRNA binding, thereby attenuating MDA5-dependent IFN-β induction; a C-terminal STAU1 mutant (469-702) lacking dsRNA binding failed to suppress IFN-β. |
In vitro binding assay, co-immunoprecipitation, reporter assay (IFN-β promoter), siRNA knockdown/overexpression, domain-deletion mutants |
FASEB journal |
Medium |
29979632
|
| 2016 |
The lncRNA SNHG5 stabilizes target mRNAs (e.g., SPATS2) by blocking their STAU1-mediated degradation in colorectal cancer cells; STAU1 depletion rescues apoptosis caused by SNHG5 knockdown, placing STAU1 downstream of SNHG5 in this pathway. |
Unbiased RNA interactome capture, siRNA knockdown, mRNA stability assay, genetic epistasis (double knockdown rescue), in vivo xenograft |
Nature communications |
Medium |
28004750
|
| 2022 |
STAU1 is degraded by the E3 ubiquitin ligase APC/C during mitosis; the degradation motif was mapped to amino acids 38-50 (FPL-motif: F39PxPxxLxxxxL50), and alanine scanning mutations of this motif prevent APC/C-mediated STAU1 degradation. Additionally, TRIM25, an E3 ubiquitin ligase, was identified by proximity labeling as responsible for STAU1 and MAP4K1 degradation via the FPL-motif. |
Alanine scanning mutagenesis, protein stability assay, proximity labeling (BioID), co-immunoprecipitation |
International journal of molecular sciences |
Medium |
36232890
|
| 2022 |
Phosphomimicry at STAU1 serine 20 (S20D mutation) impairs STAU1-mediated mRNA translation and decay regulation and is sufficient to induce apoptosis in cancer cells; even the N-terminal 88-amino-acid fragment RBD2S20D (lacking RNA-binding activity) induces apoptosis by acting in trans on endogenous STAU1's posttranscriptional functions. |
Site-directed mutagenesis, reporter assays for translation/decay, apoptosis assays, overexpression of truncation mutants |
International journal of molecular sciences |
Medium |
35806349
|
| 2024 |
Endogenous STAU1 forms dynamic cytoplasmic condensates; these condensates recruit MTOR mRNA at its 5' UTR and promote mTOR translation both in vitro and in vivo. Excessive STAU1 condensate formation leads to mTOR hyperactivation and autophagy-lysosome dysfunction in neurodegenerative disease models. |
Live-cell imaging of condensates, in vitro translation assay, STAU1 knockdown/overexpression, mTOR activity and autophagic flux assays, Huntington's disease knockin striatal cells |
The Journal of cell biology |
High |
38913026
|
| 2023 |
STAU1 regulates alternative splicing of Pparγ2 pre-mRNA during adipocyte differentiation, primarily through exon skipping (exon E1 of Pparγ2); STAU1 binds Pparγ2 pre-mRNA as shown by RIP and PAR-CLIP. |
RNA-seq (alternative splicing analysis), RNA immunoprecipitation, PAR-CLIP, sucrose density gradient centrifugation, siRNA knockdown in 3T3-L1 cells |
Biochimica et biophysica acta. Molecular and cell biology of lipids |
Medium |
36871938
|
| 2022 |
STAU1 indirectly binds the HBV core promoter (CP) mediated by TARDBP, and recruits the SAGA transcription coactivator complex to upregulate CP activity; STAU1 also binds HBx protein and stabilizes HBx in a ubiquitin-independent manner. |
TurboID proximity labeling, co-immunoprecipitation, ChIP, reporter assay, siRNA knockdown |
iScience |
Medium |
35663023
|
| 2021 |
STAU1 depletion in alveolar rhabdomyosarcoma cells reduces autophagy by directly destabilizing BECN1 and ATG16L1 mRNAs and indirectly inhibiting JNK signaling via increased DUSP8 expression; pharmacological JNK activation or DUSP8 silencing restores autophagy in STAU1-depleted cells. |
siRNA knockdown, mRNA stability assay, Western blot for autophagy markers, pharmacological rescue (JNK activator), STAU1-transgenic mouse skeletal muscle |
Cellular oncology |
Medium |
33899158
|
| 2024 |
STAU1 stabilizes BACE1 mRNA by binding to its 3' UTR, thereby extending BACE1 mRNA half-life and promoting amyloidogenesis; additionally, STAU1 enhances GADD45B expression, which activates P38 MAPK signaling to promote Tau phosphorylation at Ser396 and Thr181. |
RIP, mRNA half-life assay, siRNA knockdown/overexpression, transcriptome analysis, Western blot for BACE1, Aβ, and phospho-Tau |
Experimental neurology |
Medium |
38729552
|
| 2025 |
DDX50 monomers (generated upon glucose binding) bind STAU1 and redirect it from a decay-promoting complex with UPF1 to a DDX50-STAU1 ribonuclear complex that stabilizes pro-differentiation mRNAs (JUN, OVOL1, CEBPB, PRDM1, TINCR) and modifies their RNA structures. |
Co-immunoprecipitation, RNA immunoprecipitation, RNA structure probing, mRNA stability assay, glucose binding assay, knockdown/overexpression in multiple cell types |
Cell reports |
High |
39764852
|
| 2024 |
STAU1 directly binds the 3' UTR of PTEN mRNA to stabilize it; in the context of GIGYF2-mediated insulin resistance, elevated STAU1 stabilizes PTEN mRNA, leading to AKT inactivation and impaired PI3K/AKT signaling. |
RNA immunoprecipitation (RIP), siRNA knockdown, Western blot, glucose uptake assay, high-fat diet mouse model |
Molecular medicine |
Medium |
39138413
|
| 2025 |
STAU1 reduction inhibits p53-mediated apoptosis and DNA damage responses; combined transcriptomic and functional analyses in iPSC-derived neurons, mouse cortical neurons, SH-SY5Y cells, fibroblasts, and C9orf72 mouse models showed that STAU1 depletion prevents p53-driven pro-apoptotic signaling (Nutlin-3 and etoposide treatment models). |
Transcriptomic analysis, siRNA/RNAi knockdown, Nutlin-3 and etoposide treatment, multiple cell types including iPSC-derived neurons and C9orf72 mouse model |
Cell death & disease |
Medium |
41145462
|
| 2025 |
tRF-3019A competitively binds STAU1 protein with BECN1 mRNA, thereby releasing BECN1 mRNA from STAU1-mediated destabilization and enhancing BECN1 stable expression to promote autophagy and colon cancer progression. |
RNA pull-down, RNA immunoprecipitation, GFP-LC3B assay, siRNA knockdown, xenograft tumor model |
Cellular signalling |
Medium |
40268078
|
| 2024 |
circ-231 promotes interaction between eIF4A3 and STAU1; STAU1 binds secondary structures in the 5' UTR of TPI1 and PRDX6 mRNAs and recruits eIF4A3 to unwind these structures, enhancing translation of these proteins. |
RNA immunoprecipitation, RNA pull-down, mass spectrometry, co-immunoprecipitation, EGFP reporter assay with 5' UTR secondary structure, siRNA knockdown |
Journal of Cancer |
Medium |
38577609
|
| 2026 |
The lncRNA lnc-APUE promotes CDH1 mRNA decay via an Alu element in lnc-APUE base-pairing with the Alu element in the CDH1 3' UTR, triggering STAU1-mediated mRNA decay (SMD) requiring both STAU1 and UPF1; silencing STAU1 or UPF1 abrogates lnc-APUE-induced CDH1 mRNA decay and E-cadherin loss. |
Alu deletion/mutation constructs, siRNA knockdown of STAU1 and UPF1, mRNA stability assay, mouse xenograft model, RIP |
Advanced science |
Medium |
41632098
|
| 2021 |
STAU1 stabilizes BECN1 and ATG16L1 mRNAs in alveolar rhabdomyosarcoma cells; in non-transformed skeletal muscle cells, STAU1 downregulation activates autophagy in an mTOR-dependent manner, demonstrating cell-type-specific opposing roles for STAU1 in autophagy regulation. |
siRNA knockdown, STAU1-transgenic mouse skeletal muscle fractionation, mRNA stability assay, Western blot for mTOR and autophagy markers |
Cellular oncology |
Medium |
33899158
|