Figure 3: miRNAs expressed in CPCs. The viability of the transplanted c-Kit positive and/or Sca-1 positive CPCs in the infarcted myocardium is enhanced after the over-expression of a miRNA cocktail (miR-21, miR-24, miR-221) [71]. Moreover, the overexpression of miR-155 in CPCs improves cell survival inhibiting the necrotic process and blocking cell migration [72].