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Updated: May 7, 2026

Isolation of Type I and Type II Pericytes from Mouse Skeletal Muscles
Published on: May 26, 2017
Origins of fibrosis: pericytes take centre stage
Stephen N Greenhalgh1, John P Iredale, Neil C Henderson
1MRC Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh 47 Little France Crescent, Edinburgh, EH16 4TJ UK.
Abstract:
Pericytes are ubiquitous perivascular cells that have recently attracted interest as potential myofibroblast precursors. In turn, myofibroblasts are the major source of extracellular matrix components that accumulate during tissue fibrosis. Given the worldwide burden of fibrotic disease and paucity of therapeutic options available to halt its progression, elucidating the origins of myofibroblasts is of prime importance. The advent of genetic strategies that permit fate-mapping of specific cell populations through permanent and heritable expression of reporter proteins has begun to shed light on the source of the fibrogenic myofibroblast. Here we discuss recent studies in multiple organs that highlight the central role of pericytes in the origins of fibrosis.
Insights
Pericytes, crucial perivascular cells, are identified as key precursors to myofibroblasts. This finding is vital for understanding and treating tissue fibrosis, a widespread disease with limited therapies.
Area of Science:
- Cell Biology
- Tissue Engineering
- Pathology
Background:
- Fibrotic diseases pose a significant global health challenge with few effective treatments.
- Myofibroblasts are central to fibrosis due to their role in extracellular matrix deposition.
- Understanding myofibroblast origins is critical for developing anti-fibrotic therapies.
Purpose of the Study:
- To investigate the cellular origins of myofibroblasts, particularly in the context of tissue fibrosis.
- To highlight the role of pericytes as potential precursors to fibrogenic myofibroblasts.
Main Methods:
- Utilizing genetic fate-mapping strategies to trace cell lineages.
- Permanent and heritable expression of reporter proteins in specific cell populations.
Main Results:
- Recent studies across multiple organs indicate pericytes are a significant source of myofibroblasts.
- Fate-mapping data supports pericytes as direct precursors in fibrotic processes.
Conclusions:
- Pericytes play a central role in the development of fibrosis.
- Targeting pericyte differentiation may offer novel therapeutic strategies for fibrotic diseases.
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