It has been found that the inflammatory factor TNF-α is highly expressed in the myocardial tissue after myocardial infarction, and TNF-α stimulates the expression of the stem cell factor (SCF) in myocardial cells, thereby inducing the migration of BMSC from the damaged human myocardium and differentiation into cardiac cells, enhancing the repair of the damaged heart and improving the function of the heart [48]. This evidence concerns the gene KITLG and myocardial infarction.