Related Experiment Video
Updated: Apr 10, 2026
08:24
Isolation and Identification of Extravascular Immune Cells of the Heart
Published on: August 23, 2018
14.3K
Engineered immunosuppressive dendritic cells protect against cardiac remodelling
Xiaoying Li1,2,3,4, Jiamin Li1,5, Guohua Li1,2,3
1Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Nature
|April 8, 2026
Summary
Engineered immunosuppressive dendritic cells (iCDCs) effectively treat cardiac fibrosis and heart failure. This novel therapy improves cardiac function and perfusion in preclinical models without systemic toxicity.
Area of Science:
- Cardiovascular Research
- Immunology
- Regenerative Medicine
Background:
- Heart failure is a leading cause of death, with pathological cardiac fibrosis and declining function remaining untreatable.
- Chronic inflammation drives cardiac fibrosis after injury, but effective local immune modulation strategies are lacking.
- Dendritic cells (DCs) regulate immune responses and offer potential for therapeutic immune reprogramming in cardiac disease.
Purpose of the Study:
- To investigate the efficacy of engineered immunosuppressive and fibrosis-targeted dendritic cells (iCDCs) in preventing and reversing cardiac fibrosis and dysfunction.
- To elucidate the mechanisms underlying iCDC-mediated cardioprotection.
- To assess the safety and efficacy of iCDC therapy in preclinical models of cardiac disease.
Main Methods:
- Development of engineered immunosuppressive and fibrosis-targeted dendritic cells (iCDCs).
- Administration of iCDCs in mouse models of ischaemia-reperfusion injury, myocardial infarction, and pressure overload.
- Evaluation of cardiac fibrosis, perfusion, contractility, and immune cell activation.
- Assessment of iCDC therapy in a non-human primate model of myocardial infarction.
Main Results:
- iCDC therapy significantly reduced cardiac fibrosis, improved cardiac perfusion, and preserved contractility in multiple mouse models.
- Mechanistic studies revealed iCDCs suppress immune and stromal cell activation and promote regulatory T cell expansion.
- iCDC treatment in non-human primates demonstrated reduced cardiac fibrosis, improved cardiac function, and no systemic toxicity.
Conclusions:
- Engineered dendritic cells represent a promising therapeutic platform for treating cardiac remodelling and heart failure.
- Lesion-targeted immune modulation is a feasible strategy for controlling cardiac fibrosis.
- iCDC therapy offers a potential new approach to prevent or reverse heart failure progression.
