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Scanning Electron Microscopy of Macerated Tissue to Visualize the Extracellular Matrix
Published on: June 14, 2016
Cardiac fibroblasts in myocardial injury and heart failure
Sophie Van Linthout1,2,3, Isabell Matz1,2, Arantxa González4,5
1Berlin Institute of Health at Charité-Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT), Föhrer Strasse 15, Berlin 13353, Germany.
Insights
Cardiac fibrosis, a key factor in heart failure, involves fibroblast cells and extracellular matrix changes. New research clarifies fibroblast roles, guiding the development of targeted anti-fibrotic therapies.
Area of Science:
- Cardiovascular Biology
- Cellular and Molecular Medicine
- Fibrosis Research
Background:
- Cardiac fibrosis significantly contributes to heart failure progression.
- Aberrant extracellular matrix deposition impairs cardiac function.
- Limited understanding of fibroblast heterogeneity hinders effective anti-fibrotic treatments.
Purpose of the Study:
- To review the evolving understanding of cardiac fibroblast biology in myocardial fibrosis.
- To emphasize fibroblast roles in inflammation and extracellular matrix dysregulation.
- To highlight emerging therapeutic strategies targeting cardiac fibroblasts.
Main Methods:
- Review of recent literature on cardiac fibrosis and fibroblast biology.
- Integration of findings from lineage tracing and single-cell omics studies.
- Analysis of fibroblast interactions with cardiomyocytes and endothelial cells.
Main Results:
- Fibroblasts are diverse stromal cells crucial for cardiac tissue homeostasis and pathological remodeling.
- Distinct fibroblast states and dynamic roles in fibrosis are increasingly recognized.
- Technological advances are unraveling fibroblast complexity in the heart.
Conclusions:
- Understanding fibroblast heterogeneity is critical for developing targeted anti-fibrotic therapies.
- Emerging strategies focus on selectively modulating fibroblast activity.
- Mechanosensitive therapies represent a promising avenue for treating cardiac fibrosis.
Abstract:
Cardiac fibrosis is a major contributor to the development and progression of heart failure. It involves an aberrant deposition of extracellular matrix components, leading to impaired mechanical and electrical function of the heart. Despite its clinical importance, effective anti-fibrotic treatments remain elusive, in part due to limited insight into the molecular and cellular processes that distinguish transient from sustained fibrotic responses. Central to these processes are fibroblasts, structurally supportive yet functionally diverse stromal cells that regulate tissue architecture, cell signalling, and immune responses. Recent technological advances, including lineage tracing models and single-cell omics, have begun to unravel the complexity of fibroblast populations within the heart. These approaches have identified distinct fibroblast states and highlighted their dynamic roles in both maintaining homeostasis and driving pathological remodelling. This review examines the evolving understanding of fibroblast biology in the context of myocardial fibrosis, emphasizing their contributions to inflammation and extracellular matrix dysregulation and their interactions with cardiomyocytes and endothelial cells. Finally, emerging therapeutic avenues aimed at selectively altering fibroblast activity and mechanosensitive therapies are highlighted.
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