Figure 1C shows that KCTD5 is highly expressed a variety of tumor cells, including the brain cancer cell lines AF22, GAMG, SH-SY5Y, U-138 MG, U-251MG, and U-87 MG, the kidney and urinary bladder cancer cell lines HEK 293, NTERA-2, and RT4, the lung cancer cell lines A549, HBEC3-KT, and SCLC-21H, and in female reproductive system cancer cells such as AN3-CA, BEWO, EFO-21, HeLa, hTERT-HME1, MCF7, SiHa, SK-BR-3, and T-47d. This evidence concerns the gene KCTD5 and lung cancer.