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Updated: Mar 3, 2026
Isolation and Characterization of Adult Cardiac Fibroblasts and Myofibroblasts
Published on: March 12, 2020
Redefining the identity of cardiac fibroblasts
Michelle D Tallquist1, Jeffery D Molkentin2,3
1Department of Medicine, Center for Cardiovascular Research, University of Hawaii, Honolulu, Hawaii 96813, USA.
Insights
Cardiac fibroblasts are key to heart repair and disease. New genetic mouse models help define their origins and roles, paving the way for therapies targeting cardiac fibrosis and remodeling.
Area of Science:
- Cardiovascular Biology
- Cellular Biology
- Fibrosis Research
Background:
- Cardiac fibroblasts are crucial for maintaining heart tissue structure and function.
- Activated fibroblasts contribute to pathological processes like fibrosis and ventricular remodeling in heart disease.
- The precise origins and plasticity of cardiac fibroblasts remain incompletely understood.
Purpose of the Study:
- To investigate the origins and characteristics of cardiac fibroblasts.
- To understand fibroblast behavior during cardiac disease and ventricular remodeling.
- To explore therapeutic targets for controlling cardiac fibrosis.
Main Methods:
- Development and utilization of a set of genetic mouse models.
- Analysis of fibroblast origins and responses in disease contexts.
- Investigation of cellular mechanisms underlying cardiac remodeling.
Main Results:
- Genetic models provide insights into fibroblast heterogeneity and lineage.
- Specific fibroblast populations identified with distinct roles in injury response.
- Characterization of fibroblast plasticity during pathological remodeling.
Conclusions:
- Genetic mouse models are valuable tools for studying cardiac fibroblast biology.
- A refined understanding of cardiac fibroblasts can inform new therapeutic strategies.
- Targeting fibroblast activation and fibrosis may mitigate adverse ventricular remodeling.
Abstract:
Cardiac fibroblasts deposit and maintain extracellular matrix during organogenesis and under physiological conditions. In the adult heart, activated cardiac fibroblasts also participate in the healing response after acute myocardial infarction and during chronic disease states characterized by augmented interstitial fibrosis and ventricular remodelling. However, delineation of the characteristics, plasticity, and origins of cardiac fibroblasts is an area of ongoing investigation and controversy. A set of genetic mouse models has been developed that specifically addresses the nature of these cells, in terms of both their origins and their response during cardiac disease and ventricular remodelling. As our understanding of cardiac fibroblasts becomes more defined and refined, so does the potential to develop new therapeutic strategies to control fibrosis and adverse ventricular remodelling.
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