ABSTRACT
Cardiomyocytes are highly differentiated terminal cells with poor self-renewal ability. Therefore, after myocardial infarction necrotic cardiomyocytes cannot be effectively replenished, and the infarcted area is quickly replaced by fibrous tissue, which seriously affects cardiac function. The reduction of the number of myocardial cells and the destruction of the structural integrity of the heart have caused cardiovascular diseases such as myocardial infarction and heart failure, which continue to endanger human life and health. At present, the treatment of coronary heart disease has made great progress. The commonly used treatment options for myocardial repair after myocardial infarction mainly include stem cell transplantation, exosome mediation and microenvironment construction, but all of them are difficult to solve to varying degrees. Cardiac fibroblasts occupy the majority of cardiac cells, and the distribution characteristics of fibroblasts and their role in the process of myocardial infarction make them important effector cells after myocardial infarction. Therefore, this article reviews the source, distribution, post-infarction status of myocardial fibroblasts and the effect of fibroblasts on cardiomyocytes, in order to provide new treatment ideas and solutions for fibroblasts in the repair and regeneration of myocardial cells after myocardial infarction.