For example, AT‐derived mesenchymal stem cells (AMSCs) secrete exosomes with miR‐122 to suppress the expression of a disintegrin and metalloprotease 10 (ADAM10), insulin‐like growth factor receptor 1(IGF1R), and cyclin G1 (CCNG1) in HCC cells, resulting in arrest of cell cycle and apoptosis, and improve chemotherapy efficacy.164. Here, CCNG1 is linked to hepatocellular carcinoma.