Mortalin is overexpressed in several cancer cell lines, e.g. human brain tumors, hepatitis C virus-related hepatocellular carcinoma, SH-SY5Y neuroblastoma, A549 lung adenocarcinoma, LoVo colon adenocarcinoma, and Sup-B15 acute lymphoblastic leukemia (B cell) cell lines and ovarian tumor cells etc. [28–31]. Here, HSPA9 is linked to lung adenocarcinoma.