| 1993 |
RAB25 was identified as a novel member of the Rab GTPase family with a deduced amino acid sequence showing 63% identity with Rab11, a carboxyl-terminal CCQNI motif, a novel GTP-binding site sequence (WDTAGLE), and the ability to bind GTP on blot. Its expression was restricted to epithelial tissues (gastrointestinal mucosa, lung, kidney), with enrichment in parietal cells. |
3'-RACE cloning, GTP-binding blot assay, Northern blot tissue distribution |
The Journal of biological chemistry |
High |
8360141
|
| 1999 |
Rab25 colocalizes with Rab11a in subapical vesicles of polarized MDCK epithelial cells and associates with the apical recycling endosome, which is accessible to markers internalized from both apical and basolateral membranes. Overexpression of Rab25 decreased the rate of IgA transcytosis and apical (but not basolateral) recycling, while dominant-negative Rab25T26N did not alter either process. |
Transfection of MDCK cells, immunofluorescence colocalization with Rab11a, dimeric IgA transcytosis assay, nocodazole treatment, dominant-negative mutant expression |
Molecular biology of the cell |
High |
9880326
|
| 2000 |
Using inducible expression of wild-type, dominant-negative (Rab25S21N), and constitutively active (Rab25S21V) mutants in MDCK cells, Rab25 was shown to selectively regulate apical recycling and transcytosis but not basolateral transferrin recycling. Both wild-type and active Rab25 inhibited apical IgA recycling and transcytosis by >50%; GTPase-deficient Rab11aS20V inhibited transcytosis but not recycling, defining distinct functional roles. |
Inducible expression of GTPase mutants, IgA transcytosis assay, transferrin recycling assay in MDCK cells |
The Journal of biological chemistry |
High |
10869360
|
| 2004 |
Forced expression of RAB25 in cancer cells markedly increased anchorage-dependent and anchorage-independent cell proliferation, prevented apoptosis and anoikis (including chemotherapy-induced), and increased in vivo tumor aggressiveness. These effects were associated with decreased expression of proapoptotic BAK and BAX and activation of the PI3K/AKT pathway. |
RAB25 overexpression in ovarian/breast cancer cell lines, anchorage-independent growth assay, apoptosis assay, Western blot for BAK/BAX and phospho-AKT, in vivo xenograft tumor growth |
Nature medicine |
High |
15502842
|
| 2007 |
Rab25 directly interacts with the β1 integrin cytoplasmic tail, and this association promotes localization of integrin-recycling vesicles to pseudopodial tips and retention of a cycling pool of α5β1 at the cell front, driving invasive migration on 3D matrices. Rab25-driven tumor-cell invasion was strongly dependent on fibronectin ligation by α5β1 and the capacity of Rab25 to interact with β1 integrin. |
Direct interaction assay (β1 integrin cytoplasmic tail pulldown), live-cell imaging of vesicle localization, 3D matrix invasion assay, fibronectin dependence assay, interaction-deficient mutants |
Developmental cell |
High |
17925226
|
| 2010 |
Rab25 deficiency in mice crossed onto ApcMin/+ background produced a 4-fold increase in intestinal polyps and 2-fold increase in colonic tumors, demonstrating a tumor suppressor function. Rab25-deficient mice showed decreased β1 integrin staining in lateral membranes of villus cells, indicating Rab25 regulates β1 integrin trafficking to the cell surface in intestinal epithelium. |
Rab25 knockout mouse model, ApcMin/+ genetic cross, Smad3+/- genetic cross, immunostaining for β1 integrin, polyp/tumor counting |
The Journal of clinical investigation |
High |
20197623
|
| 2011 |
Rab25 directs active-conformation α5β1 integrin to late endosomes/lysosomes where, together with CLIC3, integrins are retrogradely transported and recycled to the plasma membrane at the back of invading cells rather than being degraded. CLIC3 is upregulated in Rab25-expressing cells, colocalizes with active α5β1 in late endosomes/lysosomes, and is required for release of the cell rear during migration and for maintenance of active Src signaling. |
Photoactivation of fluorescent proteins, biochemical fractionation, CLIC3 knockdown, 3D matrix invasion assay, active-conformation integrin antibody localization, Src signaling assay |
Developmental cell |
High |
22197222
|
| 2011 |
Overexpression of Rab25 in non-transformed rat intestinal epithelial (RIE) cells leads to morphological transformation, anchorage-independent growth, tumor formation in nude mice, disruption of integrin-based focal adhesions, and alteration of microtubule subsets. Transformation by Rab25 (but not H-RasV12) was reversed by inhibitors of microtubule polymerization, identifying microtubule-dependent trafficking as the mechanism. |
Rab25 overexpression in RIE cells, soft-agar colony assay, nude mouse xenograft, focal adhesion immunostaining, microtubule inhibitor treatment, comparison with H-RasV12 transformation |
Cytoskeleton (Hoboken, N.J.) |
High |
21246754
|
| 2012 |
RAB25 enhances survival during nutrient stress by directly binding and activating AKT, leading to increased glucose uptake, elevated cellular ATP levels, and glycogen accumulation in epithelial cancer cells—a function not previously attributed to Rab25. |
RAB25 overexpression/knockdown in cancer cells, AKT binding assay, glucose uptake assay, ATP measurement, glycogen staining, nutrient deprivation survival assay |
EMBO molecular medicine |
High |
22253197
|
| 2012 |
Grhl2 transcriptionally upregulates Rab25, which in turn increases Claudin-4 protein levels and enhances its localization to tight junctions in liver progenitor epithelial cells, coordinating epithelial lumen formation in 3D culture. |
Grhl2 cDNA transfection, 3D cyst culture, Claudin-4 localization by immunofluorescence, Rab25 overexpression, functional tight junction assay |
Molecular biology of the cell |
Medium |
22696678
|
| 2013 |
Crystal structure of Rab25 in complex with the C-terminal FIP2 coiled-coil domain revealed a heterotetrameric Rab25-(FIP2)2-Rab25 complex. Thermodynamic analysis showed FIP2 binds Rab25 with ~3-fold weaker affinity than Rab11a, attributable to subtle conformational differences in switch 1 and switch 2 regions. Rab25 can recruit FIP2 to endosomal membranes in cells. |
Crystal structure determination, isothermal titration calorimetry (ITC), cellular co-localization of Rab25 with FIP2 on endosomal membranes |
Biochimica et biophysica acta |
High |
24056041
|
| 2013 |
Rab25 knockdown in polarized Caco2-BBE intestinal epithelial cells decreased α2-, α5-, and β1-integrin expression, with direct colocalization and co-immunoprecipitation demonstrating Rab25 directly associates with α5β1 integrins. Rab25 loss also upregulated claudin-1, increased transepithelial resistance, increased invasive behavior, and disorganized brush border microvilli. These phenotypes were rescued by reintroduction of Rab25. Rab25 regulated α5-integrin at the transcriptional level via the transcription factor ETV4. |
shRNA knockdown and rescue, Co-IP of Rab25 with α5β1 integrin, transepithelial resistance measurement, invasion assay, transcriptomics, ETV4 overexpression rescue |
Molecular biology of the cell |
High |
23345591
|
| 2013 |
Rab25 regulates invasion and actin organization in head and neck squamous cell carcinoma (HNSCC): reexpression of Rab25 in a metastatic HNSCC cell line blocked invasion in 3D collagen matrix and metastasis to cervical lymph nodes in a mouse oral cancer model. Rab25 specifically affected F-actin organization at the cell surface rather than cell proliferation, apoptosis, or angiogenesis. |
Intravital microscopy in live animals, 3D collagen matrix invasion assay, in vivo lymph node metastasis model, F-actin staining |
Clinical cancer research |
High |
23340300
|
| 2013 |
Rab25 regulates secretion of osteoprotegerin (OPG) at both the transcriptional and secretion level; RAB25 expression increased OPG mRNA and protein secretion from ovarian and breast cancer cells, protecting them from TRAIL-induced cell death. This effect cooperated with EGFR-mediated MAPK signaling. |
RAB25 overexpression/siRNA knockdown, OPG ELISA in conditioned media, TRAIL cytotoxicity assay, EGFR inhibitor combination, pharmacogenetic pathway analysis |
Journal of genetic syndromes & gene therapy |
Medium |
25520884
|
| 2016 |
Rab25 regulates HIF-1α protein expression in an oxygen-independent manner via the ErbB2/ERK1/2 and p70S6K/mTOR pathways, requiring de novo protein synthesis rather than transcriptional upregulation. Rab25 expression induces HIF-1 transcriptional activity, increases cisplatin resistance, and confers intraperitoneal growth capacity in ovarian cancer cells. |
RAB25 overexpression in A2780 and SKOV3 cells, HIF-1α protein/mRNA analysis, signaling inhibitor panel (ErbB2, ERK1/2, mTOR inhibitors), HIF-1β siRNA knockdown, in vivo peritoneal carcinomatosis model |
Oncotarget |
Medium |
26967059
|
| 2016 |
In hepatic stellate cells (HSCs), ROS-dependent Rab25 overexpression promotes the interaction of Rab25 with PI3KCIII (VPS34), directing autophagy to recognize and degrade lipid droplets during HSC activation. Rab25 siRNA blocked autophagic targeting of lipid droplets; antioxidant scavenging of ROS disrupted the Rab25-autophagy interaction. |
Rab25 siRNA, autophagy inhibition (Atg5 siRNA), ROS scavengers (GSH, NAC), Co-IP of Rab25 with PI3KCIII, lipid droplet staining, autophagic flux assay |
Redox biology |
Medium |
28038427
|
| 2016 |
Rab25 expression in arterial smooth muscle cells (myocytes) promotes surface expression of CaV1.2 calcium channels by preventing their lysosomal and proteasomal degradation. Rab25 co-localizes in close spatial proximity to CaV1.2 channels (immunoFRET). Rab25 knockdown reduced CaV1.2 surface and intracellular abundance, reduced whole-cell CaV1.2 current density, and inhibited pressure- and depolarization-induced vasoconstriction in cerebral arteries. |
siRNA knockdown in cerebral artery myocytes, surface biotinylation assay, immunoFRET microscopy, whole-cell patch-clamp electrophysiology, myogenic tone measurement |
American journal of physiology. Cell physiology |
High |
27076616
|
| 2017 |
Stapled peptides (RFP14) derived from the RAB-binding FIP-family inhibit RAB25:FIP complex formation, exhibit increased structural stability, binding affinity, and cell permeability. RFP14 inhibits migration and proliferation in RAB25 pro-oncogenic cell lines and augments these phenotypes in tumor-suppressive RAB25 contexts, validating the RAB25:FIP interaction as mechanistically important for context-specific oncogenic functions. |
All-hydrocarbon stapled peptide synthesis, binding affinity measurement, cell permeability assay, RAB25:FIP co-IP disruption assay, migration/proliferation assay in RAB25-expressing vs. RAB25-low cell lines, transcriptional profiling |
Nature communications |
High |
28939823
|
| 2017 |
RIN1 interacts with Rab25 as a functional binding partner in renal cell carcinoma. Rab25 knockdown eliminated the augmentation of cell proliferation, migration, and invasion conferred by ectopic RIN1 expression, placing Rab25 downstream of RIN1 in activation of EGFR signaling in ccRCC. |
Co-IP of RIN1 with Rab25, gain/loss-of-function experiments, epistasis (Rab25 knockdown rescues RIN1 overexpression phenotype), EGFR signaling assay |
Cancer science |
Medium |
28612496
|
| 2018 |
Rab25 increases β1 integrin levels at the plasma membrane, leading to sequential activation of EGFR and upregulation of VEGF-A expression, increased Snail and fascin expression, and epithelial-to-mesenchymal transition and cancer cell invasiveness. Snail was identified as the mediator of Rab25-induced fascin expression. |
Rab25 overexpression, β1 integrin surface expression assay, EGFR phosphorylation, VEGF-A ELISA, Snail/fascin Western blot, 3D invasion assay, in vivo lung metastasis model |
Experimental & molecular medicine |
Medium |
29371698
|
| 2018 |
ZEB2 binds to E-box sequences on the RAB25 promoter and stably represses RAB25 expression through epigenetic mechanisms requiring DNA methyltransferases (DNMTs) for local DNA hypermethylation and SIRT1 for H3K9 deacetylation. SIRT1 inhibition decreased long-term repression stability but did not prevent ZEB2-mediated RAB25 downregulation directly. RAB25 partially suppresses ZEB2-mediated cell migration. |
Conditional ZEB2 expression system, ChIP for ZEB2 binding to RAB25 promoter E-boxes, bisulfite sequencing for DNA methylation, H3K9ac ChIP, SIRT1 inhibitor treatment, cell migration assay |
Epigenetics & chromatin |
High |
30445998
|
| 2019 |
Rab25 interacts with β1 integrin and promotes its trafficking to the cytoplasmic membrane, leading to membrane β1 integrin-induced AKT phosphorylation and subsequent activation of the Wnt/β-catenin signaling pathway to promote cell proliferation and erlotinib resistance in NSCLC cells. |
Co-immunoprecipitation of Rab25 with β1 integrin, cell fractionation to assess membrane β1 integrin levels, AKT/β-catenin Western blot, lentiviral knockin/knockout, cell proliferation and drug resistance assays in vitro and in vivo |
Cell proliferation |
Medium |
30848009
|
| 2019 |
Loss of Rab25 in skin keratinocytes causes dysregulation of integrin β1, β4, and α6 trafficking, impairs their recycling, and promotes squamous cell carcinoma development. In a two-stage mouse skin carcinogenesis model, Rab25 knockout significantly accelerated tumor generation and malignant transformation. |
Rab25 knockout mice, two-stage skin carcinogenesis (DMBA/TPA) model, HaCaT xenograft, integrin expression/localization immunostaining, integrin recycling assay |
The Journal of pathology |
High |
31144312
|
| 2020 |
RAB25 interacts with EGFR and enhances EGFR recycling to the cell surface while decreasing its degradation in the cytoplasm, leading to hyperactive EGFR signaling and acquired radioresistance in lung and nasopharyngeal cancer cells. |
Co-IP of Rab25 with EGFR, EGFR surface expression assay, EGFR degradation kinetics, RAB25 knockdown with radiosensitivity assay in vitro and in vivo |
iScience |
Medium |
32252020
|
| 2021 |
In zebrafish gastrula epithelium, Rab25 localizes near cytokinetic midbodies and coordinates abscission through endomembrane trafficking. Loss of maternal-zygotic Rab25a and Rab25b results in persistent apical cytokinetic bridges that fail timely abscission, causing anisotropic cell morphologies, reduced contractile actomyosin networks, slowed cell rearrangements, altered tissue viscoelastic responses, and delayed epiboly. |
Maternal-zygotic Rab25a/Rab25b double mutant zebrafish, live imaging of cytokinetic bridges, actomyosin network quantification, tissue mechanical measurements |
eLife |
High |
33755014
|
| 2021 |
Rab25 co-locates on the cell membrane with PKM2 in gastric adenocarcinoma cells and can directly bind to PKM2 as shown by co-immunoprecipitation. Rab25 acts as a positive regulator of PKM2, promoting PKM2 phosphorylation (Y105) and thereby participating in the regulation of aerobic glycolysis. |
Co-immunoprecipitation of Rab25 with PKM2, immunofluorescence co-localization, lactate/pyruvate measurement, lentiviral overexpression/silencing |
Translational cancer research |
Medium |
35116410
|
| 2022 |
RAB25 coordinates keratohyalin granule (KHG) maturation and filaggrin processing in epidermis by regulating actin dynamics. In HaCaT keratinocytes, RAB25 co-expresses with filaggrin-containing KHGs, and RAB25 silencing impairs KHG formation through abnormal actin dynamics. RAB25 knockout mice show disrupted stratum corneum, skin barrier dysfunction, and decreased KHG production. |
RAB25 knockout mice, RAB25 siRNA in HaCaT cells, KHG immunofluorescence, actin dynamics assay, trans-epidermal water loss measurement, comparison with human AD skin specimens |
Allergy |
Medium |
36383036
|
| 2025 |
RAB25 promotes ADAMTS5 expression in ovarian cancer cells through activation of the NF-κB signaling pathway. ADAMTS5 is necessary and sufficient to stimulate ovarian cancer cell migration through fibroblast-secreted matrices, identifying it as a downstream effector of Rab25-driven invasion. |
RAB25 overexpression/knockdown with ADAMTS5 expression readout, NF-κB pathway inhibition, ADAMTS5 knockdown/overexpression, 3D spheroid invasion assay, selective ADAMTS5 inhibitor treatment |
The FEBS journal |
Medium |
40164572
|
| 2025 |
RAB25 loss in gastric epithelial cells facilitates TGF-α secretion, which promotes upregulation of EGFR signaling in pit cells. In Rab25 KO mice, long-term altered TGFA secretion caused foveolar hyperplasia ameliorated by TGFA neutralization, establishing a physiological role for Rab25 in regulating gastric pit lineage commitment through control of TGFA secretory trafficking. |
Rab25 KO mice, mouse primary gastric cell culture, TGFA secretion assay, EGFR signaling measurement, TGFA-neutralizing antibody treatment, single-cell RNA sequencing analysis |
Cell death & disease |
Medium |
41365858
|
| 2025 |
RAB25 interacts with GCN1, inhibits K33-ubiquitination-mediated degradation of GCN1, and thereby promotes GCN2 phosphorylation and ATF4-mediated ER stress, contributing to alcohol-associated liver disease progression. RAB25 specifically accumulated on the ER in ALD. |
Mass spectrometry identification of RAB25-GCN1 interaction, Co-IP assay, ubiquitination assay, GCN2/ATF4 phosphorylation Western blot, RAB25 knockdown in hepatocytes, in vivo ALD mouse model |
Clinical and molecular hepatology |
Medium |
40916695
|
| 2010 |
The core promoter of human RAB25 contains a CRE element (-67/-58) that binds CREB, as demonstrated by EMSA and ChIP. PKA activation (forskolin) enhances chromatin accessibility at the RAB25 promoter, promotes CREB phosphorylation, recruits co-factors CBP and BRG1, and increases RAB25 expression. Deletion of the CRE abolished promoter activity. |
5'-deletion luciferase reporter assay, EMSA, ChIP for CREB binding, chromatin accessibility assay (PCR-based), forskolin (PKA activator) treatment |
The international journal of biochemistry & cell biology |
Medium |
21075212
|
| 2024 |
An APEX2 proximity labeling screen identified DENND6A as a physical interacting partner of RAB25, and this interaction affects cell migration. |
APEX2 proximity labeling mass spectrometry, interaction validation, cell migration assay |
bioRxivpreprint |
Low |
|
| 2024 |
Magnetogenetic repositioning of endogenous Rab25 vesicles to the cell periphery directly drives formation of F-actin protrusions. Rab25 vesicles coordinate localization of the actin regulator FMNL1 and integrin β1 with activation of Rho GTPases at the plasma membrane to generate filopodial protrusions and promote cancer cell invasive migration in 3D matrix. |
Magnetogenetic manipulation of Rab25 vesicle positioning, live-cell F-actin imaging, FMNL1 and β1 integrin co-localization, Rho GTPase activation biosensor, 3D matrix invasion assay |
bioRxivpreprint |
Medium |
|