| 1995 |
p190-B (ARHGAP5) was cloned and its recombinant C-terminal Rho GAP domain was shown in vitro to have GAP activity for RhoA, Rac1, and CDC42Hs/G25K. The N-terminal portion contains a GTPase domain. p190-B co-localizes with α5β1 integrin and is recruited to the plasma membrane beneath fibronectin-coated bead binding sites, along with Rho, establishing a transmembrane link between integrins and p190-B/Rho signaling. |
Recombinant protein in vitro GAP assay, immunoprecipitation, immunofluorescence, integrin antibody-coated bead recruitment assay |
The Journal of biological chemistry |
High |
8537347
|
| 2000 |
Transient transfection of a p190-B expression construct into MCF-10A human mammary epithelial cells resulted in disruption of the actin cytoskeleton, demonstrating a direct role for p190-B in regulating signaling pathways influencing cell migration and invasion. |
Transient transfection with p190-B expression construct, actin cytoskeleton imaging |
Cell growth & differentiation |
Medium |
10939588
|
| 2003 |
p190-B RhoGAP (ARHGAP5) is required for mammary ductal morphogenesis: p190-B heterozygous and null mice show decreased ductal outgrowth due to decreased proliferation in cap cells of terminal end buds, phenotypically similar to IGF-I receptor null mammary epithelium, and decreased expression of insulin receptor substrates IRS-1 and IRS-2, indicating p190-B regulates ductal morphogenesis partly by modulating the IGF signaling axis. |
p190-B knockout/heterozygous mouse model, mammary transplantation into cleared fat pad, IRS-1/2 western blotting |
Molecular endocrinology |
High |
12637587
|
| 2006 |
Overexpression of p190-B RhoGAP in the developing mammary gland disrupts ductal morphogenesis—causing abnormal terminal end buds with aberrant budding, increased branching, delayed ductal elongation, and hyperplastic lesions during pregnancy—accompanied by altered IGF pathway signaling, discontinuous myoepithelial layer, increased collagen, and macrophage infiltration in the stroma. |
Tetracycline-regulatable p190-B transgenic mouse model, histology, IHC, IGF signaling analysis |
Molecular endocrinology |
High |
16469769
|
| 2007 |
p190-B RhoGAP is required for embryonic mammary bud development; p190-B-deficient embryos show smaller buds with impaired mesenchymal proliferation and differentiation, phenocopied by IRS-1/2 double knockout embryos, establishing that IGF signaling through p190-B and IRS proteins is critical for mammary bud morphogenesis and epithelial-mesenchymal interactions. |
p190-B knockout mouse embryos, IGF-1R knockout comparison, IRS-1/2 double knockout comparison, histology, proliferation assay |
Developmental biology |
High |
17662267
|
| 2008 |
ARHGAP5 (p190-B RhoGAP) promotes cell spreading and migration by negatively regulating RhoA activity in Huh-7 hepatocellular carcinoma cells; ARHGAP5 was identified as a target of amplification at chromosomal region 14q12 in hepatocellular carcinoma. |
High-density oligonucleotide microarray for copy number, RhoA activity assay, functional cell spreading/migration assays |
Cancer letters |
Medium |
18996642
|
| 2009 |
Loss of p190-B RhoGAP enhances hematopoietic stem cell (HSC) long-term engraftment and self-renewal during serial transplantation. p190-B deficiency represses upregulation of p16(Ink4a) in HSCs, providing a mechanistic basis for p190-B-mediated HSC self-renewal activity. |
p190-B knockout mouse, serial transplantation, ex vivo culture, transcriptional analysis of p16(Ink4a) |
Blood |
High |
19713466
|
| 2013 |
p190-B RhoGAP deletion in mice causes hematopoietic failure due to non-cell-autonomous defects in the mesenchymal microenvironment. p190-B loss impairs Wnt signaling in mesenchymal stem cells (MSCs), alters MSC lineage fate specification to osteoblast and adipocyte lineages, and disrupts bone marrow niche composition. |
p190-B knockout mouse, coculture of MSCs with wild-type bone marrow cells, colony-forming unit assays (CFU-fibroblast, CFU-adipocyte, CFU-osteoblast), Wnt signaling analysis |
Leukemia |
High |
23563238
|
| 2013 |
miR-486-5p directly binds the 3'-UTR of ARHGAP5 mRNA to suppress its expression, and ARHGAP5 knockdown inhibits lung cancer cell migration and invasion, establishing ARHGAP5 as a downstream effector of miR-486-5p in NSCLC metastasis. |
Luciferase 3'-UTR reporter assay, miR-486-5p overexpression/silencing, ARHGAP5 siRNA knockdown, migration/invasion assays in vitro, in vivo metastasis model |
Oncogene |
High |
23474761
|
| 2017 |
A point mutation in p190B RhoGAP impairs RhoB inactivation in dermal microvascular endothelial cells, leading to prolonged RhoB activation after TNF stimulation, impaired recovery of barrier function, and increased endothelial permeability. siRNA knockdown of p190B in normal ECs recapitulates the mutant phenotype, establishing p190B as a regulator of capillary endothelial barrier function via RhoB inactivation. |
Patient-derived endothelial cells with p190B point mutation, TNF stimulation, transendothelial electrical resistance (TEER) measurement, siRNA knockdown in normal ECs, RhoB activation assay |
The Journal of experimental medicine |
High |
29097442
|
| 2017 |
Loss of p190-B RhoGAP normalizes bioactive TGF-β1 levels and p38MAPK activity in hematopoietic stem and progenitor cells (HSPCs), reduces asymmetric fate choice, and promotes symmetric retention of multi-lineage capacity. This establishes a p190-B RhoGAP–ROS–TGF-β–p38MAPK signaling network balancing HSPC self-renewal and differentiation. |
p190-B knockout mouse, transplantation, single HSPC culture, p38MAPK activity assay, TGF-β1 measurement, asymmetric distribution analysis |
Nature communications |
High |
28176763
|
| 2018 |
SIRT1 suppresses ARHGAP5 expression by physically associating with transcription factor c-JUN and deacetylating it to inhibit its transcriptional activity on the ARHGAP5 promoter. Silencing of ARHGAP5 inhibits gastric cancer cell migration and invasion, and ARHGAP5 mediates SIRT1-dependent suppression of GC metastasis. |
mRNA microarray, co-immunoprecipitation (SIRT1–c-JUN interaction), deacetylation assay, ARHGAP5 knockdown, in vitro migration/invasion assays, in vivo metastasis model |
Cell death & disease |
High |
30250020
|
| 2019 |
lncRNA ARHGAP5-AS1 activates ARHGAP5 transcription in the nucleus by directly interacting with the ARHGAP5 promoter, and also stabilizes ARHGAP5 mRNA in the cytoplasm by recruiting METTL3 to stimulate m6A modification of ARHGAP5 mRNA. Impaired autophagic degradation of ARHGAP5-AS1 (dependent on SQSTM1 transport to autophagosomes) leads to ARHGAP5 upregulation and chemoresistance in gastric cancer. |
ChIP assay, RNA immunoprecipitation, METTL3 recruitment assay, m6A modification detection, autophagy inhibition, SQSTM1 knockdown, ARHGAP5-AS1 knockdown/overexpression |
Cell death & disease |
High |
31097692
|
| 2019 |
Meningitic E. coli-induced ANGPTL4 in brain microvascular endothelial cells disrupts blood-brain barrier via ARHGAP5/RhoA/MYL5 signaling cascade: ANGPTL4 increases MYL5 expression through RhoA pathway activation (by downregulating ARHGAP5, a negative regulator of RhoA), leading to increased BBB permeability without affecting tight junction proteins. |
ANGPTL4 recombinant protein treatment, in vitro and in vivo permeability assay, RhoA activity measurement, MYL5 expression analysis, ARHGAP5 knockdown |
Pathogens |
Medium |
31766605
|
| 2020 |
ARHGAP5 promotes colorectal cancer cell epithelial-mesenchymal transition by negatively regulating RhoA activity. CREB1 transcriptionally upregulates ARHGAP5 expression, and decreased miR-137 contributes to ARHGAP5 mRNA stability in CRC. |
RNAi, ChIP assay (CREB1 binding to ARHGAP5 promoter), RhoA activity assay, EMT markers, in vitro migration/invasion, xenograft models |
Theranostics |
High |
32483433
|
| 2022 |
ADAR1 interacts with METTL3 and edits METTL3 mRNA to change its miR-532-5p binding site, leading to increased METTL3 protein levels. METTL3 then m6A-modifies ARHGAP5 mRNA, which is recognized by YTHDF1, promoting breast cancer proliferation, migration, and invasion. This establishes ADAR1/METTL3/ARHGAP5/YTHDF1 as an oncogenic axis. |
Co-immunoprecipitation (ADAR1–METTL3), m6A sequencing/detection, luciferase assay, YTHDF1 RIP, ADAR1 knockdown in vivo xenograft |
International journal of molecular sciences |
Medium |
36077054
|
| 2022 |
ARHGAP5 GAP domain variants identified in patients with idiopathic hypogonadotropic hypogonadism were shown by in vitro GAP activity assay to have decreased activity; however, arhgap5 zebrafish morphants did not display significant GnRH3-GFP+ neuronal abnormalities, making ARHGAP5 a candidate rather than confirmed gene for IHH. |
In vitro GAP activity assay, zebrafish gnrh3:egfp neuronal area phenotype assessment, exome sequencing |
Genetics in medicine |
Low |
36178483
|
| 2022 |
lncRNA ARHGAP5-AS1 interacts with SMAD7 protein via its PY motif and prevents SMAD7 ubiquitination and degradation by blocking interaction between SMAD7 and E3 ligases SMURF1/SMURF2, thereby suppressing TGF-β signaling and inhibiting breast cancer cell migration. |
RNA pulldown assay, RNA immunoprecipitation, co-immunoprecipitation (SMAD7–SMURF1/2), dual luciferase reporter (TGF-β signaling), F-actin staining, transwell migration assay |
Breast cancer research and treatment |
Medium |
34370213
|
| 2023 |
circARHGAP5 (derived from exons 2-3 of ARHGAP5) directly binds AUF1 RNA-binding protein and prevents AUF1 from degrading BIM mRNA, thereby promoting BIM expression and sensitizing cervical squamous cell carcinoma cells to cisplatin-induced apoptosis. |
RNA pulldown, RIP, circARHGAP5 overexpression/knockdown, BIM mRNA stability assay, in vitro and in vivo cisplatin apoptosis assays |
Cancer science |
Medium |
36632741
|
| 2024 |
lncRNA ZFHX2-AS1 interacts with pseudouridine synthase DKC1 and attenuates its enzymatic activity, thereby reducing pseudouridylation of ARHGAP5 mRNA and stabilizing it. ARHGAP5 in turn promotes epithelial-mesenchymal transition by regulating Rho GTPase activities in ovarian cancer. |
RIP, DKC1 enzymatic activity assay, pseudouridylation detection, ARHGAP5 mRNA stability assay, ZFHX2-AS1 overexpression/knockdown, in vitro and in vivo functional assays, Rho GTPase activity assay |
Cellular signalling |
Medium |
39368791
|
| 2016 |
CD147 upregulates p190-B RhoGAP (ARHGAP5) at both mRNA and protein levels in hepatocellular carcinoma cells. p190-B mediates CD147-induced RhoA deactivation, as silencing p190-B rescues stress fiber and focal adhesion formation and blunts the CD147 overexpression effect on cell movement. |
qRT-PCR, western blot, RhoA biosensor (FRET), siRNA knockdown, immunofluorescence, wound-healing assay, IHC in HCC tissues |
Cancer cell international |
Medium |
27601938
|
| 2025 |
In hepatocytes, N-cadherin maintains hepatic polarity by facilitating RhoA inactivation through ARVCF (p120-catenin family member) and its partner p190B/ARHGAP5, while E-cadherin promotes RhoA activation and bile canaliculi elongation via a distinct pathway, establishing dual opposing roles of cadherins in controlling RhoA activity through ARHGAP5. |
Live imaging, RhoA activity assay, CRISPR/gene knockdown, localization studies in hepatocyte models |
bioRxivpreprint |
Medium |
|
| 2025 |
CRISPR/Cas9 knockout of p190B (ARHGAP5) in HEC-1-A endometrial cancer cells leads to actin remodeling with formation of Cross-Linked Actin Networks (CLANs) dependent on the Rho/ROCK pathway. Loss of p190A (ARHGAP35) causes a similar phenotype, and simultaneous loss of both paralogs is synthetically lethal in endometrial cancer cells. |
CRISPR/Cas9 KO, actin cytoskeleton imaging, ROCK inhibitor treatment, proteomic analysis |
bioRxivpreprint |
Medium |
|