COL15A1 and ovarian carcinoma: RNA sequencing of ovarian carcinoma-TA-MSCs identifies a distinct predictive algorithm comprising six genes: Annexin A8-like protein 2 (ANXA8L2), Collagen Type XV Alpha 1 Chain (COL15A1), Cytokine Receptor Like Factor 1 (CRLF1), GATA Binding Protein 4 (GATA4), Iroquois Homeobox 2 (IRX2), and TGF‐β2.