Additionally, in ischemia reperfusion-induced AKI mouse model, C-C motif chemokine receptor 2 (CCR2) enriched in MSC-EVs was found to inhibit CCL2-mediated macrophage activity and the complement-related proteins (CD59, C5, C3, and C4A) released by MSC-EVs were found to contribute to the phagocytosis of apoptotic cells and protection against early renal injury (Table 1) [37]. The gene discussed is CCR2; the disease is acute kidney injury.