Cited by 96Liver physiology and pathologyCell Adhesion Molecules ResearchInterstitial Lung Diseases and Idiopathic Pulmonary Fibrosis

Integrin alpha 11 in the regulation of the myofibroblast phenotype: implications for fibrotic diseases

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Bansal, Ruchi, Nakagawa, Shigeki, Yazdani, Saleh, van Baarlen, Joop, Venkatesh, Anu, Koh, Anna P, Song, Won-Min, Goossens, Nicolas +9 more·2017·Experimental & Molecular Medicine

Abstract

Tissue fibrosis, characterized by excessive accumulation of aberrant extracellular matrix (ECM) produced by myofibroblasts, is a growing cause of mortality worldwide. Understanding the factors that induce myofibroblastic differentiation is paramount to prevent or reverse the fibrogenic process. Integrin-mediated interaction between the ECM and cytoskeleton promotes myofibroblast differentiation. In the present study, we explored the significance of integrin alpha 11 (ITGA11), the integrin alpha subunit that selectively binds to type I collagen during tissue fibrosis in the liver, lungs and kidneys. We showed that ITGA11 was co-localized with α-smooth muscle actin-positive myofibroblasts and was correlatively induced with increasing fibrogenesis in mouse models and human fibrotic organs. Furthermore, transcriptome and protein expression analysis revealed that ITGA11 knockdown in hepatic stellate cells (liver-specific myofibroblasts) markedly reduced transforming growth factor β-induced differentiation and fibrotic parameters. Moreover, ITGA11 knockdown dramatically altered the myofibroblast phenotype, as indicated by the loss of protrusions, attenuated adhesion and migration, and impaired contractility of collagen I matrices. Furthermore, we demonstrated that ITGA11 was regulated by the hedgehog signaling pathway, and inhibition of the hedgehog pathway reduced ITGA11 expression and fibrotic parameters in human hepatic stellate cells in vitro, in liver fibrosis mouse model in vivo and in human liver slices ex vivo. Therefore, we speculated that ITGA11 might be involved in fibrogenic signaling and might act downstream of the hedgehog signaling pathway. These findings highlight the significance of the ITGA11 receptor as a highly promising therapeutic target in organ fibrosis. A protein involved in binding collagen contributes to the organ-scarring disease known as fibrosis. Integrin alpha 11 (ITGA11) is known to bind collagen produced by myofibroblasts, injury-driven specific cells responsible for inducing fibrosis. A team led by Jai Prakash from the University of Twente in Enschede, The Netherlands, showed that ITGA11 is expressed at higher levels in the livers of mice with experimentally induced fibrosis than in healthy controls. In tissues taken from liver biopsies of fibrosis patients, levels of ITGA11 also tracked the expression of myofibroblasts. Remarkebly, blocking ITGA11 prevented the fibrotic activity of these cells. Similar results were seen in tissue from human fibrotic lung. The findings point to ITGA11 as a promising drug target for treating a range of fibrotic conditions.

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Authors
Bansal, R., Nakagawa, S., Yazdani, S., van Baarlen, J., Venkatesh, A., Koh, A. P., Song, W.-M., Goossens, N., Watanabe, H., Beasley, M. B., Powell, C. A., Storm, G., Kaminski, N., van Goor, H., Friedman, S. L., Hoshida, Y., & Prakash, J.
Affiliations
  • University of Twente (NL)
  • Tisch Cancer Institute (US)
  • Harvard University (US)
  • Icahn School of Medicine at Mount Sinai (US)
  • Utrecht University (NL)
  • Yale University (US)
  • Karolinska Institutet (SE)
Corresponding author
  • Bansal, Ruchi
  • Prakash, Jai
Venue
Experimental & Molecular Medicine
Published
2017-11
Volume
49
Issue
11
Pages
e396-e396
ISSN
  • 1226-3613 (ISSN-L)
  • 2092-6413
OpenAlex
W2769870963
Cited by
96
References
38
Citations by year
2026: 15 · 2025: 13 · 2024: 12 · 2023: 12 · 2022: 10 · 2021: 10 · 2020: 6 · 2019: 12 · 2018: 4 · 2017: 1
FWCI
3.88
Type
journal article
Language
en
Open access
Locations
  • Experimental & Molecular Medicine (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • University of Twente Research Information (acceptedVersion, cc-by-nc-sa)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by-nc-sa)
  • University of Twente Research Information (submittedVersion, other-oa)
Funders
  • Irma T. Hirschl Trust
  • ZonMw (916.151.94)
  • Nierstichting (14OI16)
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek
  • Vetenskapsrådet (2011-5389)
  • National Institutes of Health (DK56621)
  • National Cancer Institute (R01CA163772)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R56DK056621, R01DK099558, R01DK056621, DK099558, DK 56621)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Health Sciences › Medicine › Immunology and Allergy › Cell Adhesion Molecules Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
Keywords
myofibroblast differentiation, fibrosis, liver fibrosis, hepatic stellate cells, Hedgehog signaling, type I collagen, TGF-beta, extracellular matrix, alpha-smooth muscle actin, cell adhesion and migration, organ fibrosis, fibrotic diseases
MeSH terms
Animals, Cell Differentiation, Disease Models, Animal, Fibrosis, Gene Expression Regulation, Humans, Immunohistochemistry, Kidney Diseases, Liver Cirrhosis, Phenotype, Signal Transduction, Transforming Growth Factor beta, Integrin alpha Chains, Mice, Hedgehog Proteins, Hepatic Stellate Cells, Gene Knockdown Techniques, Myofibroblasts

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