| 2016 |
TGFβ1 upregulates ITGB6 gene transcription via canonical Smad3/Smad4 signaling: ChIP demonstrated direct binding of Smad3 and Smad4 to the ITGB6 promoter at a single Smad binding site at position -798, and dominant-negative Smad3/4 constructs abolished TGFβ1-induced ITGB6 transcriptional activity. A homeostatic autocrine loop exists where αvβ6-mediated TGFβ1 activation drives basal ITGB6 expression, which can be amplified by exogenous TGFβ1. In vivo, Smad3 was required for TGFβ1-induced αvβ6 integrin expression in alveolar epithelium. |
Dominant-negative Smad3/4 constructs, ITGB6 promoter reporter assays with Smad-binding-site mutation, chromatin immunoprecipitation (ChIP), adenoviral TGFβ1 overexpression mouse model |
PloS one |
High |
27494713
|
| 2013 |
Loss-of-function mutations in ITGB6 (missense and nonsense variants in the βI-domain and elsewhere) cause autosomal recessive amelogenesis imperfecta. Immunohistochemistry localized ITGB6 protein to the distal membrane of differentiating ameloblasts/pre-ameloblasts, with internalization in secretory-stage ameloblasts and strongest expression at the maturation stage, indicating that ITGB6-mediated cell-matrix interactions are required at multiple stages of amelogenesis. |
Whole-exome sequencing, Sanger sequencing, immunohistochemistry of mouse mandibular incisors |
Human molecular genetics |
High |
24305999 24319098
|
| 2019 |
PD-L1 directly interacts with integrin β6 (ITGB6) and activates the ITGB6/FAK signaling pathway. RORC negatively regulates PD-L1 expression by binding to its promoter, thereby suppressing PD-L1/ITGB6 signaling and preventing nuclear translocation of STAT3 in bladder cancer cells. |
Co-immunoprecipitation (PD-L1/ITGB6 interaction), chromatin immunoprecipitation (RORC on PD-L1 promoter), western blotting, in vitro and in vivo functional assays |
Cancer research |
Medium |
30808674
|
| 2021 |
In ovarian cancer spheroids, ITGB6 binds latent TGFβ1 (confirmed by anti-ITGB6 antibody inhibition and dual-luciferase reporter assays), activates it, and triggers downstream TGFβ1/Smad3 signaling to induce EMT markers (N-cadherin, Snail, Vimentin upregulation; E-cadherin downregulation). SMYD3 promotes ITGB6 expression and TGFβ1 release from spheroids, and TGFβ1 feeds back to upregulate SMYD3 and ITGB6, forming a positive feedback loop that drives invasion and adhesion. |
Anti-ITGB6 antibody blocking assays, dual-luciferase reporter assays, ELISA, western blotting, Transwell invasion/adhesion assays, 3D spheroid models |
Frontiers in oncology |
Medium |
34621667
|
| 2022 |
STC1 (Stanniocalcin 1) directly binds to ITGB6 to activate the PI3K signaling pathway, promoting metastasis, lipid metabolism, and cisplatin chemoresistance in ovarian cancer. STC1 is transcriptionally regulated by FOXC2, placing ITGB6 downstream in the FOXC2/STC1/ITGB6/PI3K axis. |
Co-immunoprecipitation (STC1/ITGB6 direct binding), in vitro and in vivo functional assays, western blotting |
Journal of experimental & clinical cancer research : CR |
Medium |
35392966
|
| 2022 |
HAX1, delivered via extracellular vesicles (EVs) to endothelial cells, enhances the translational efficiency of ITGB6 mRNA (identified by ribosome profiling), increasing ITGB6 protein levels and activating the FAK pathway, thereby promoting angiogenesis and NPC metastasis. |
Ribosome profiling, in vitro EV uptake assays, in vivo angiogenesis and metastasis models, western blotting |
Journal of extracellular vesicles |
Medium |
35524442
|
| 2014 |
ITGB6 protein expression in skeletal muscle is post-transcriptionally regulated: uninjured muscle expresses Itgb6 mRNA but no detectable ITGB6 protein; muscle injury rapidly induces ITGB6 protein accumulation in myofibers adjacent to the injury site, persisting in newly formed fibers through at least 15 days post-injury. |
qRT-PCR, western blotting, immunohistochemistry in injured and uninjured mouse skeletal muscle |
Journal of molecular histology |
Medium |
24488487
|
| 2021 |
ITGB6 knockout in cholangiocarcinoma (HuCCT1) cells using CRISPR/Cas9 significantly inhibited cell migration, invasion, wound healing, colony formation, and caused cell cycle dysregulation. RNA sequencing identified a marked decrease in PODXL2 (podocalyxin-like protein 2) expression in ITGB6-KO cells, and co-localization of ITGB6 and PODXL2 was observed by immunofluorescence, placing PODXL2 downstream of ITGB6. |
CRISPR/Cas9 knockout, RNA sequencing, flow cytometry, immunofluorescence co-localization, migration/invasion assays |
International journal of molecular sciences |
Medium |
34208313
|
| 2021 |
Silencing of ITGB6 in cervical carcinoma cells suppresses JAK1, JAK2, and STAT3 phosphorylation, reduces EMT marker expression (Snail, Vimentin, N-cadherin), and increases E-cadherin. Reactivation of the JAK/STAT3 pathway with an activator (RO8191) reversed the effects of ITGB6 silencing on proliferation, migration, invasion, and EMT markers, placing ITGB6 upstream of JAK/STAT3 signaling. |
siRNA knockdown, western blotting, JAK/STAT3 pathway activator rescue experiment, Transwell and wound-healing assays |
Annals of translational medicine |
Medium |
34268416
|
| 2021 |
Transgenic overexpression of ITGB6 specifically in intestinal epithelial cells exacerbated DSS-induced colitis in mice, associated with increased macrophage infiltration, pro-inflammatory cytokine secretion, increased integrin ligand expression, and activation of the STAT1 signaling pathway. |
Intestinal epithelial cell-specific ITGB6 transgenic mouse model, DSS colitis induction, histopathology, cytokine measurement, western blotting |
Journal of cellular and molecular medicine |
Medium |
33491282
|
| 2016 |
miR-17 and miR-20a target TGFβR2 and SARA (components of the TGFβ pathway), reducing Smad2/3 phosphorylation and thereby decreasing ITGB6 expression, which impedes ESCC cell migration and invasion. This epistasis places ITGB6 as a downstream effector of TGFβ/Smad2-3 signaling in ESCC motility. |
miRNA overexpression, luciferase reporter assays (for TGFBR2 and SARA as targets), TGFβ treatment/rescue experiments, in vitro migration/invasion assays, in vivo pulmonary arrest model |
American journal of cancer research |
Medium |
27508097
|
| 2023 |
Exosomal ITGB6 from dormant lung adenocarcinoma cells is transferred into fibroblasts, where it activates a KLF10 positive feedback loop and the TGFβ pathway, converting normal fibroblasts into cancer-associated fibroblasts (CAFs) and promoting ECM remodeling. |
Exosome isolation and transfer assays, RNA-seq of recipient fibroblasts, exosomal proteomics, functional CAF activation assays |
Translational lung cancer research |
Medium |
38205211
|
| 2024 |
ITGB6 regulates tumor-associated chemokine CX3CL1 expression in head and neck squamous cell carcinoma; ITGB6-expressing tumors recruit PF4+ macrophages expressing high CX3CR1 via CX3CL1. These macrophages secrete CXCL16 to suppress CXCR6+ CD8+ T cell activity. Inhibition of CX3CL1-CX3CR1 axis or ITGB6 knockout restored sensitivity to anti-CD276 and anti-PD1 therapies. |
Single-cell RNA sequencing, ITGB6 gene-knockout mouse models, chemically-induced and orthotopic carcinogenesis models, CX3CL1-CX3CR1 axis inhibition |
Nature communications |
Medium |
39152118
|
| 2025 |
ITGB6 promotes anoikis resistance in daughter cells of polyploid giant cancer cells (PGCCs) in HNSCC by activating the FAK/PI3K/AKT signaling pathway, facilitating tumor recurrence and metastasis. In vitro and in vivo experiments confirmed that ITGB6 upregulation in these daughter cells suppresses anoikis via this pathway. |
RNA-seq, in vitro anoikis assays, in vivo metastasis models, western blotting for FAK/PI3K/AKT pathway markers |
Scientific reports |
Medium |
41022988
|
| 2025 |
TGFβ upregulates ITGB6 expression through a SMAD4-dependent pathway (confirmed by ChIP-qPCR and dual-luciferase reporter assays). Elevated ITGB6 promotes pancreatic cancer cell migration/invasion and activates hepatic stellate cells (HSCs) to create a pro-fibrotic metastatic niche. An ITGB6 monoclonal antibody significantly attenuated HSC activation and suppressed liver metastasis formation in mouse models. |
ChIP-qPCR, dual-luciferase reporter assay, subcutaneous and liver metastasis xenograft models, ELISA, western blotting, monoclonal antibody intervention |
Chinese medical journal |
Medium |
41424019
|
| 2025 |
ODAPH interacts directly with Lamininγ2 (LAMC2), confirmed by co-immunoprecipitation. ODAPH overexpression enhances the LAMC2/ITGB6/TGFβ1/ALP signaling pathway in ameloblast-lineage cells. ITGB6 activates the TGFβ1/ALP cascade, and inhibition of integrin with CWHM-12 abrogates ODAPH-mediated TGFβ1/ALP induction, placing ITGB6 as an obligate mediator between LAMC2 and TGFβ1 signaling in ameloblast adhesion and mineralization. |
Co-immunoprecipitation (ODAPH-LAMC2), overexpression in ameloblast-lineage cells, integrin inhibitor (CWHM-12) rescue experiment, western blotting |
PloS one |
Medium |
40680053
|
| 2024 |
ETS1 transcription factor directly binds the ITGB6 promoter and promotes its transcription in an acidic tumor microenvironment. ChIP-qPCR demonstrated ETS1 enrichment at the ITGB6 promoter, and dual-luciferase reporter assays confirmed ETS1-mediated transcriptional activation of ITGB6. Acidity-induced ITGB6 expression then activates EMT and focal adhesion signaling pathways to promote NSCLC cell migration and invasion. |
ChIP-qPCR, dual-luciferase reporter assay, ITGB6 knockdown rescue experiments, migration/invasion assays |
Experimental cell research |
Medium |
38316250
|
| 1994 |
The human ITGB6 gene was regionally localized to chromosome 2q24-q31 by fluorescence in situ hybridization (FISH) with GTG-banding. Double-labeling FISH showed ITGB6 is located proximal to ITGAV on this integrin gene cluster. |
Fluorescence in situ hybridization (FISH) with GTG-banding, double-labeling FISH |
Genomics |
Medium |
7959743
|
| 2024 |
CRISPR/Cas9 knockout of ITGB6 in human OSCC cells (HN cell line) significantly reduced cell migration and proliferation, establishing ITGB6 as required for these behaviors in oral squamous cell carcinoma. |
CRISPR/Cas9 knockout, MTT proliferation assay, scratch migration assay, Sanger sequencing, FACS verification |
Head & face medicine |
Low |
38890650
|
| 2025 |
ITGB6 knockout in porcine intestinal epithelial cells (IPEC-J2) significantly reduced DON-induced reactive oxygen species levels and cell apoptosis. Transcriptomic analysis of ITGB6-KO cells after DON treatment showed differential gene enrichment in the PI3K/AKT signaling pathway, implicating ITGB6 in PI3K/AKT-mediated cell survival/apoptosis under toxin exposure. |
CRISPR/Cas9 knockout, ROS measurement, flow cytometry apoptosis assay, transcriptomic analysis |
Toxicology |
Low |
41161376
|