The DOI matches its Crossref record; 142 of the 142 references it cites were found in a registry or an index.
Type-1 pericytes accumulate after tissue injury and produce collagen in an organ-dependent manner
Open accessAbstract
Introduction: Fibrosis, or scar formation, is a pathological condition characterized by excessive production and accumulation of collagen, loss of tissue architecture, and organ failure in response to uncontrolled wound healing. Several cellular populations have been implicated, including bone marrow-derived circulating fibrocytes, endothelial cells, resident fibroblasts, epithelial cells, and recently, perivascular cells called pericytes. We previously demonstrated pericyte functional heterogeneity in skeletal muscle. Whether pericyte subtypes are present in other tissues and whether a specific pericyte subset contributes to organ fibrosis are unknown. Methods: Here, we report the presence of two pericyte subtypes, type-1 (Nestin-GFP-/NG2-DsRed+) and type-2 (Nestin-GFP+/NG2-DsRed+), surrounding blood vessels in lungs, kidneys, heart, spinal cord, and brain. Using Nestin-GFP/NG2-DsRed transgenic mice, we induced pulmonary, renal, cardiac, spinal cord, and cortical injuries to investigate the contributions of pericyte subtypes to fibrous tissue formation in vivo. Results: A fraction of the lung’s collagen-producing cells corresponds to type-1 pericytes and kidney and heart pericytes do not produce collagen in pathological fibrosis. Note that type-1, but not type-2, pericytes increase and accumulate near the fibrotic tissue in all organs analyzed. Surprisingly, after CNS injury, type-1 pericytes differ from scar-forming PDGFRβ + cells. Conclusions: Pericyte subpopulations respond differentially to tissue injury, and the production of collagen by type-1 pericytes is organ-dependent. Characterization of the mechanisms underlying scar formation generates cellular targets for future anti-fibrotic therapeutics.
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CNS fibroblasts form a fibrotic scar in response to immune cell infiltration.
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PDGFRα signaling drives adipose tissue fibrosis by targeting progenitor cell plasticity
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Metadata
- Authors
- Birbrair, A., Zhang, T., Files, D. C., Mannava, S., Smith, T., Wang, Z.-M., Messi, M. L., Mintz, A., & Delbono, O.
- Venue
- Stem Cell Research & Therapy
- Published
- 2014-11-06
- Volume
- 5
- Issue
- 6
- Pages
- 122-122
- ISSN
- 1757-6512 (ISSN-L)
- OpenAlex
- W1981750198
- Cited by
- 282
- References
- 142
- FWCI
- 9.13
- Type
- journal article
- Language
- en
- Open access
- gold
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- Birbrair, A., Zhang, T., Files, D. C., Mannava, S., Smith, T., Wang, Z.-M., Messi, M. L., Mintz, A., & Delbono, O. (2014). Type-1 pericytes accumulate after tissue injury and produce collagen in an organ-dependent manner. Stem Cell Research & Therapy. https://doi.org/10.1186/scrt512
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