It has been shown that, in cisplatin-sensitive ovarian cancer cells, CAFs-derived exosomal miR-98-5p was capable of binding to cyclin-dependent kinase inhibitor 1A (CDKN1A) to inhibit its expression, which increased ovarian cancer cell proliferation and cell cycle entry, suppressed cell apoptosis, and promoted cisplatin resistance in vitro and in a xenotransplanted nude mouse model (Guo et al., 2019). Here, CDKN1A is linked to ovarian cancer.