| 1993 |
RAB25 was identified as a novel small GTP-binding protein with a unique carboxyl-terminal CCQNI motif and a novel GTP-binding site sequence (WDTAGLE); recombinant Rab25 was able to bind GTP on blot. Its expression was restricted to gastrointestinal mucosa, lung, and kidney, with enrichment in parietal cells. |
3'-RACE cloning, GTP-binding blot assay, Northern blot |
The Journal of biological chemistry |
Medium |
8360141
|
| 1999 |
Rab25 localizes to subapical vesicles and colocalizes with Rab11a in the apical recycling endosome of polarized MDCK cells. Overexpression of Rab25 decreased the rate of IgA transcytosis and of apical (but not basolateral) recycling. The dominant-negative Rab25T26N did not alter apical recycling or transcytosis. |
Transfection in MDCK cells, immunofluorescence colocalization, quantitative transcytosis/recycling assays, dominant-negative and wild-type constructs |
Molecular biology of the cell |
High |
9880326
|
| 2000 |
Using inducible expression of wild-type, dominant-negative, and constitutively active mutants, both Rab25 wild-type (S21V) and the constitutively active mutant inhibited apical IgA recycling and transcytosis by >50% but had no effect on basolateral transferrin recycling. The GTPase-deficient Rab11aS20V inhibited basolateral-to-apical transcytosis but not recycling, establishing distinct roles for GTP-binding state in apical trafficking. |
Inducible expression of wild-type, dominant-negative (Rab25S21V), and constitutively active mutants in MDCK cells; quantitative IgA transcytosis and transferrin recycling assays |
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, and increased tumor aggressiveness in vivo. The inhibition of apoptosis was associated with decreased expression of proapoptotic BAK and BAX, and activation of the PI3K/AKT pathway. |
Transfection/forced expression, soft agar assays, in vivo tumor growth, Western blot for BAK/BAX, PI3K/AKT pathway analysis |
Nature medicine |
High |
15502842
|
| 2007 |
Rab25 directly interacts with the β1 integrin cytoplasmic tail and promotes localization of integrin-recycling vesicles to pseudopodial tips, retaining a pool of cycling α5β1 integrin at the cell front. Rab25-driven tumor-cell invasion into 3D extracellular matrix is strongly dependent on fibronectin ligation by α5β1 and requires Rab25's capacity to interact with β1 integrin. |
Co-immunoprecipitation (direct interaction), live-cell imaging of vesicle localization, 3D invasion assays on fibronectin matrices, domain-interaction mutants |
Developmental cell |
High |
17925226
|
| 2010 |
Rab25-deficient mice crossed onto ApcMin/+ background showed a 4-fold increase in intestinal polyps and 2-fold increase in colonic tumors compared to parental ApcMin/+ mice, establishing Rab25 as a tumor suppressor in intestinal neoplasia. Rab25-deficient mice also showed decreased β1 integrin staining in lateral membranes of villus cells. Similarly, Rab25-deficient mice crossed with Smad3+/- mice showed markedly increased colonic tumor formation. |
Rab25 knockout mice, genetic epistasis (ApcMin/+, Smad3+/- crosses), immunohistochemistry for β1 integrin, tumor counting |
The Journal of clinical investigation |
High |
20197623
|
| 2011 |
Rab25 permits sorting of ligand-occupied, active-conformation α5β1 integrin to late endosomes/lysosomes. Lysosomally targeted integrins are not degraded but are retrogradely transported and recycled to the plasma membrane at the back of invading cells. This requires CLIC3, a protein upregulated in Rab25-expressing cells, which colocalizes with active α5β1 in late endosomes/lysosomes and is necessary for cell rear release during migration. |
Photoactivation microscopy, biochemical fractionation, CLIC3 knockdown/overexpression, 3D invasion assays, organotypic cultures, Src signaling assays |
Developmental cell |
High |
22197222
|
| 2011 |
Overexpression of Rab25 in non-transformed rat intestinal epithelial (RIE) cells caused morphological transformation, growth in soft agar, and tumor formation in nude mice. This transformation was reversed by inhibitors of microtubule polymerization but not by H-Ras(V12)-induced transformation, establishing microtubule-dependent trafficking as the mechanism of Rab25-driven transformation. |
Stable overexpression in RIE cells, soft agar assays, nude mouse tumorigenesis, microtubule inhibitor treatment, comparison with H-Ras(V12) transformation |
Cytoskeleton (Hoboken, N.J.) |
Medium |
21246754
|
| 2012 |
RAB25 enhanced cancer cell survival during nutrient stress by binding and activating AKT, leading to increased glucose uptake, improved cellular bioenergetics, and unexpected accumulation of glycogen in epithelial cancer cells. AKT-dependent increases in glucose uptake and glycogen storage maintained ATP levels during bioenergetic stress. |
RAB25 overexpression/knockdown, AKT binding assays, glucose uptake assays, ATP/glycogen quantification, extracellular flux analysis, apoptosis assays under nutrient stress |
EMBO molecular medicine |
Medium |
22253197
|
| 2012 |
Grhl2 transcriptionally upregulates Rab25 as one of its targets. Rab25 increases claudin-4 protein levels and enhances its localization to tight junctions, contributing to epithelial lumen formation and cyst expansion in 3D cultures. |
Grhl2 cDNA transfection, 3D cyst cultures, claudin localization by immunofluorescence, rescue/overexpression experiments |
Molecular biology of the cell |
Medium |
22696678
|
| 2012 |
Rab25 acts as a tumor suppressor in esophageal squamous cell carcinoma (ESCC); functional studies showed Rab25 re-expression suppresses invasion and angiogenesis through a deregulated FAK-Raf-MEK1/2-ERK signaling pathway. Downregulation of Rab25 in ESCC was associated with promoter hypermethylation. |
Lentiviral overexpression and suppression, invasion assays, angiogenesis assays, Western blot for FAK-Raf-MEK1/2-ERK pathway, bisulfite sequencing and demethylation treatment |
Cancer research |
Medium |
22991305
|
| 2013 |
Crystal structure of Rab25 in complex with the C-terminal region of FIP2 was determined. Rab25 associates with FIP2 and recruits this effector to endosomal membranes. The structure reveals a heterotetrameric Rab25-(FIP2)2-Rab25 complex. FIP2 binds Rab25 with approximately 3-fold weaker affinity than Rab11a, with reduced enthalpy attributable to differences in switch 1 and switch 2 conformations. |
Crystal structure determination, isothermal titration calorimetry (ITC), co-localization by immunofluorescence, thermodynamic analysis |
Biochimica et biophysica acta |
High |
24056041
|
| 2013 |
Rab25 directly associates with α5β1 integrins (colocalization and direct association shown) and controls integrin expression in polarized Caco2-BBE cells. Rab25 knockdown decreased α2-, α5-, and β1-integrin expression and upregulated claudin-1 expression, increased transepithelial resistance, and increased invasive behavior. Rab25 loss also decreased the transcription factor ETV4, and ETV4 overexpression in Rab25-knockdown cells reversed losses of α5β1-integrin. |
Stable shRNA knockdown, rescue by rabbit Rab25 re-expression, Co-IP/colocalization for direct association, gene expression arrays, transepithelial resistance measurement, invasion assays, ETV4 overexpression epistasis |
Molecular biology of the cell |
High |
23345591
|
| 2013 |
Rab25 mediates secretion of osteoprotegerin (OPG), both at the transcription and secretion level. RAB25 expression increased OPG mRNA expression and secretion from ovarian and breast cancer cell lines, protecting cells from TRAIL-induced cell death. Rab25 cooperates with EGFR-mediated MAPK signaling to increase OPG production and release. |
Rab25 overexpression/siRNA knockdown, OPG ELISA, mRNA quantification, cell death assays, pharmacogenetic pathway inhibition |
Journal of genetic syndromes & gene therapy |
Medium |
25520884
|
| 2013 |
Rab25 affects the organization of F-actin at the cell surface in head and neck squamous cell carcinoma (HNSCC). Re-expression of Rab25 in a metastatic HNSCC cell line blocked invasion in 3D collagen matrix and blocked metastasis to cervical lymph nodes in a mouse oral cancer model. |
Rab25 re-expression, intravital microscopy, 3D invasion assay, mouse model of oral cancer with lymph node metastasis quantification, F-actin staining |
Clinical cancer research |
Medium |
23340300
|
| 2016 |
Rab25 regulates HIF-1α protein expression in an oxygen-independent manner in cancer cells, requiring de novo protein synthesis through the Erbb2/ERK1/2 and p70S6K/mTOR pathways (not transcriptional upregulation). Rab25 expression induced HIF-1 transcriptional activity, increased cisplatin resistance, and conferred intraperitoneal growth in vivo. Targeting HIF-1β re-sensitized Rab25-expressing cells to cisplatin. |
HIF-1α protein/mRNA analysis, pathway inhibitors (Erbb2/ERK1/2, mTOR), HIF-1β siRNA knockdown, in vivo peritoneal carcinomatosis model, MTT assays |
Oncotarget |
Medium |
26967059
|
| 2016 |
Rab25 promotes turnover of lipid droplets in hepatic stellate cells (HSCs) through ROS-dependent mechanisms. HSC activation triggers Rab25 overexpression, and Rab25 promotes combination with PI3KCIII to direct autophagy to recognize and degrade lipid droplets. Rab25 siRNA blocked autophagy-mediated lipid droplet disappearance; ROS scavenging disrupted Rab25-autophagy interaction. |
Rab25 siRNA knockdown, Atg5 siRNA, autophagosome assays, Co-IP of Rab25 and PI3KCIII, antioxidant treatment, lipid droplet quantification |
Redox biology |
Medium |
28038427
|
| 2016 |
Rab25 controls surface expression of CaV1.2 calcium channels in cerebral artery smooth muscle cells. Rab25 localizes in close spatial proximity to CaV1.2 (by immunoFRET); Rab25 knockdown reduced CaV1.2 surface and intracellular abundance, reduced whole-cell CaV1.2 current density, and inhibited pressure- and depolarization-induced vasoconstriction. CaV1.2 degradation upon Rab25 knockdown involved both lysosomal and proteasomal pathways. |
Immunofluorescence FRET (immunoFRET), siRNA knockdown, arterial biotinylation surface expression assay, patch-clamp electrophysiology, pressure myography |
American journal of physiology. Cell physiology |
High |
27076616
|
| 2017 |
Stapled peptides derived from the RAB-binding FIP-family protein (RFP14) target RAB25 and inhibit RAB25:FIP complex formation in cells. Treatment with RFP14 inhibits migration and proliferation in a RAB25-dependent manner in pro-oncogenic contexts, and augments these phenotypes in tumor suppressive contexts, validating context-specific RAB25 oncogenic phenotypes. |
All-hydrocarbon stapled peptides, cell permeability assays, binding affinity measurements, RAB25:FIP complex inhibition, migration/proliferation assays, transcriptional profiling |
Nature communications |
High |
28939823
|
| 2018 |
ZEB2 transcriptionally represses RAB25 by binding specifically to E-box sequences on the RAB25 promoter. ZEB2 binding is associated with local increases in DNA methylation (requiring DNMTs) and histone deacetylation (H3K9Ac) depending on SIRT1 activity. RAB25 contributes to partial suppression of ZEB2-mediated cell migration. |
Conditional ZEB2 expression, ChIP for ZEB2 at RAB25 promoter E-boxes, bisulfite sequencing for DNA methylation, H3K9Ac ChIP, SIRT1 inhibition, DNMT inhibition, migration assays |
Epigenetics & chromatin |
Medium |
30445998
|
| 2018 |
Rab25 increases β1 integrin levels and subsequent EGFR activation, upregulating VEGF-A expression and leading to increased Snail expression, EMT, and cancer cell invasiveness. Snail mediates Rab25-induced invasiveness through fascin expression. Ectopic Rab25 expression promotes metastasis of ovarian cancer cells to the lung in vivo. |
Rab25 overexpression, Western blot for pathway components (β1 integrin, EGFR, VEGF-A, Snail, fascin), Snail knockdown epistasis, in vivo lung metastasis model |
Experimental & molecular medicine |
Medium |
29371698
|
| 2019 |
Rab25 interacts with β1 integrin (shown by Co-IP) and promotes trafficking of β1 integrin to the cytoplasmic membrane. Membrane-localized β1 integrin induces AKT phosphorylation and subsequently activates the Wnt/β-catenin signaling pathway, promoting cell proliferation and mediating erlotinib resistance in NSCLC. |
Co-immunoprecipitation, Western blot, cell fractionation, lentiviral Rab25 knockin/knockout, cell proliferation and apoptosis assays, in vivo xenograft |
Cell proliferation |
Medium |
30848009
|
| 2019 |
Loss of Rab25 promotes skin squamous cell carcinoma (SCC) development through dysregulation of integrin β1, β4, and α6 trafficking and expression. Rab25 deficiency caused impairment of integrin recycling, and Rab25 knockout mice showed accelerated tumor generation and malignant transformation in a two-stage skin carcinogenesis model. |
Rab25 knockout mice, two-stage skin carcinogenesis model, Rab25-deficient keratinocyte xenografts, integrin trafficking assays, immunohistochemistry |
The Journal of pathology |
Medium |
31144312
|
| 2020 |
Rab25 interacts with EGFR (Co-IP) to enhance EGFR recycling to the cell surface and decrease EGFR degradation in the cytoplasm. This promotes hyperactive EGFR signaling and tumor radioresistance. Inhibition of Rab25 showed synergized radiosensitivity. |
Co-immunoprecipitation for Rab25-EGFR interaction, surface EGFR quantification, EGFR recycling/degradation assays, radiosensitivity assays |
iScience |
Medium |
32252020
|
| 2020 |
RAB25 suppresses chemotherapy-induced mitochondrial apoptosis in ovarian cancer cells upstream of mitochondrial outer membrane permeabilization, either by increasing antiapoptotic BCL-2 proteins or decreasing proapoptotic BCL-2 proteins. BAX expression negatively correlates with RAB25 expression. BH3 profiling confirmed RAB25 decreases mitochondrial cell death priming. Suppressing RAB25 by RNAi or stapled peptide RFP14 sensitizes cells to chemotherapy. |
RAB25 siRNA knockdown, RFP14 stapled peptide inhibition, BH3 profiling, Western blot for BCL-2 family members, chemotherapy sensitivity assays |
Apoptosis |
Medium |
32901335
|
| 2021 |
Rab25 localizes near cytokinetic midbodies in zebrafish gastrula epithelium and coordinates cytokinetic bridge abscission through endomembrane trafficking. Loss of Rab25a and Rab25b caused persistent apical cytokinetic bridges, anisotropic cell morphologies, reduced contractile actomyosin networks, slowed cell rearrangements, and altered viscoelastic tissue responses, all contributing to delayed epiboly. |
Maternal-zygotic Rab25a and Rab25b mutant zebrafish, live imaging, immunofluorescence for midbody localization, actomyosin quantification, tissue mechanics measurement |
eLife |
High |
33755014
|
| 2021 |
Rab25 participates in regulation of aerobic glycolysis via PKM2 in gastric adenocarcinoma. Rab25 protein and PKM2 protein co-localize on the cell membrane and directly bind each other. Rab25 is a positive regulator of PKM2 and promotes phosphorylation of PKM2 at Y105. |
Co-immunoprecipitation, immunofluorescence colocalization, lentiviral Rab25 silencing/overexpression, pyruvate/lactate quantification, PKM2 phosphorylation by Western blot |
Translational cancer research |
Medium |
35116410
|
| 2022 |
RAB25 coordinates keratohyalin granule (KHG) maturation by regulating actin dynamics in keratinocytes. RAB25-deficient mice showed decreased KHG production and abnormal KHG processing. In HaCaT cells, RAB25 co-expressed with filaggrin-containing KHG, and RAB25 silencing impaired KHG formation through abnormal actin dynamics. |
Rab25 knockout mice, oxazolone AD model, RAB25 siRNA in HaCaT cells, immunofluorescence, KHG quantification, actin dynamics assays |
Allergy |
Medium |
36383036
|
| 2023 |
Rab25 induces claudin-7 expression through protein stabilization in colon cancer cells. Claudin-7 inactivates EGFR and reduces Snail expression; silencing claudin-7 reversed the tumor-suppressive role of Rab25. Rab25 also inactivated EGFR and increased E-cadherin expression. |
Rab25 overexpression, claudin-7 knockdown epistasis, 3D Matrigel invasion assay, modified Boyden chamber, Western blot for EGFR/E-cadherin/Snail, claudin-7 protein stability assay |
Oncology reports |
Medium |
38131227
|
| 2025 |
RAB25 promotes ADAMTS5 expression through activation of the NF-κB signaling pathway in ovarian cancer cells. ADAMTS5 is necessary and sufficient to stimulate ovarian cancer cell migration through fibroblast-secreted matrices, and selective ADAMTS5 inhibition prevented ovarian cancer spheroid invasion in 3D systems. |
Rab25 overexpression/knockdown, NF-κB pathway inhibition and reporter assay, ADAMTS5 knockdown/overexpression, 3D invasion spheroid assays |
The FEBS journal |
Medium |
40164572
|
| 2025 |
RAB25 interacts with GCN1 (confirmed by mass spectrometry and Co-IP), and this interaction inhibits K33-ubiquitination-mediated degradation of GCN1, promoting GCN2 phosphorylation and subsequently activating ATF4-mediated ER stress in hepatocytes during alcohol-associated liver disease. RAB25 specifically accumulates on the ER in ALD. |
Mass spectrometry, Co-immunoprecipitation, K33-ubiquitination assays, GCN2 phosphorylation, ATF4/ER stress markers, RAB25 knockdown in vitro and in vivo |
Clinical and molecular hepatology |
Medium |
40916695
|
| 2025 |
RAB25 loss in gastric epithelial cells facilitates TGF-α secretion, which promotes upregulation of EGFR signaling in the pit region and drives pit cell lineage commitment. Long-term alteration of TGF-α secretion in Rab25 KO mice caused gastric lesions with massive foveolar hyperplasia, which was ameliorated by TGF-α neutralization. |
Rab25 KO mice, mouse primary cell culture, single-cell RNA sequencing, TGF-α neutralization in vivo, EGFR pathway analysis by Western blot |
Cell death & disease |
Medium |
41365858
|
| 2024 |
Magnetogenetic positioning of Rab25 vesicles to the cell periphery directly drives formation of F-actin protrusions. Endogenous Rab25 vesicles coordinate positioning of actin regulator FMNL1 and integrin β1 with activation of Rho GTPases at the plasma membrane to generate and maintain F-actin rich filopodial protrusions and promote cancer cell invasive migration in 3D matrix. |
Magnetogenetic approach for direct Rab25 vesicle positioning, live-cell imaging, F-actin quantification, FMNL1 and integrin β1 colocalization, Rho GTPase biosensor |
bioRxivpreprint |
Medium |
|
| 2010 |
The RAB25 promoter contains a CRE element (-67/-58) that binds CREB within the core promoter region. PKA activator forskolin enhances open chromatin accessibility at this CRE, facilitating CREB phosphorylation, recruitment of co-factors CBP and Brg1, histone modification, and heightened RAB25 expression. |
PCR-based chromatin accessibility assay, ChIP, EMSA, deletion constructs with luciferase reporter, forskolin treatment |
The international journal of biochemistry & cell biology |
Medium |
21075212
|
| 2015 |
CCN3 overexpression in cortical neurons inhibits axonal outgrowth, with RAB25 identified as a downstream effector by transcriptomic analysis. In vivo ectopic expression of RAB25 or dominant-negative RAB25-T26N demonstrated that GTPase activity of RAB25 is required for CCN3-mediated inhibition of neuronal outgrowth. |
In vivo cortical electroporation, transcriptomic analysis, RAB25 and dominant-negative RAB25-T26N overexpression, axonal outgrowth quantification |
Biochemical and biophysical research communications |
Low |
25871796
|