Consistent with those previously reported [25–28], the results showed that exosome miRNAs are involved in metabolism and cancer processes, endoplasmic reticulum protein processing, focal adhesion protein formation, participating in signaling pathways such as forkhead box O (FoxO) and transforming growth factor-β (TGF-β) (Fig. 4d), which related to cell migration and proliferation. Here, TGFB1 is linked to cancer.