Related Experiment Video
Updated: Aug 25, 2025

Isolation of Macrophage Subsets and Stromal Cells from Human and Mouse Myocardial Specimens
Published on: December 17, 2019
Macrophage, a potential targeted therapeutic immune cell for cardiomyopathy
Ganyi Chen1, Hongwei Jiang1, Yiwei Yao1
1Department of Thoracic and Cardiovascular Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
Insights
Macrophages are key immune cells in cardiomyopathy, impacting heart failure. Understanding their role and developing targeted therapies for myocardial fibrosis are crucial for clinical treatment, despite current challenges.
Area of Science:
- Cardiovascular Biology
- Immunology
- Pathophysiology
Background:
- Cardiomyopathy leads to heart failure via systolic/diastolic dysfunction and cardiac remodeling.
- Macrophages are pivotal immune cells in cardiac inflammation and fibrosis.
- Exogenous and resident cardiac macrophages exhibit distinct functional and phenotypic differences during injury.
Purpose of the Study:
- To elucidate the molecular mechanisms of macrophage involvement in cardiomyopathy.
- To analyze current clinical treatment strategies for myocardial fibrosis.
- To bridge the gap between experimental findings and clinical application of macrophage-targeted therapies.
Main Methods:
- Comprehensive literature review on macrophage function in cardiomyopathy.
- Analysis of existing research on molecular mechanisms.
- Evaluation of clinical treatment strategies and challenges for myocardial fibrosis.
Main Results:
- Macrophages significantly contribute to inflammation and fibrosis in cardiomyopathy.
- Distinct roles of exogenous and resident macrophages in cardiac injury identified.
- Challenges in clinical translation of macrophage-targeted therapies highlighted.
Conclusions:
- Macrophages are critical players in the pathogenesis of cardiomyopathy.
- Targeting macrophages holds therapeutic potential for heart failure and myocardial fibrosis.
- Further research is needed to overcome clinical translation hurdles for macrophage-based interventions.
Abstract:
Cardiomyopathy is a major cause of heart failure, leading to systolic and diastolic dysfunction and promoting adverse cardiac remodeling. Macrophages, as key immune cells of the heart, play a crucial role in inflammation and fibrosis. Moreover, exogenous and cardiac resident macrophages are functionally and phenotypically different during cardiac injury. Although experimental evidence has shown that macrophage-targeted therapy is promising in cardiomyopathy, clinical translation remains challenging. In this article, the molecular mechanism of macrophages in cardiomyopathy has been discussed in detail based on existing literature. The issues and considerations of clinical treatment strategies for myocardial fibrosis has also been analyzed.
Related Concept Videos
Myocarditis I: Introduction
Cardiomyopathy V: Interprofessional Care
Cardiomyopathy IV: Restrictive Cardiomyopathy

