RPS6KB2 and small cell lung carcinoma: S6K2 mediates the pro-survival activity of FGF2 by triggering the translation of the anti-apoptotic proteins B-cell lymphoma-extra-large (BcL-XL) and X-chromosome-linked inhibitors of apoptosis protein (XIAP) in different cell types, including H-510 SCLC and HEK-293 cells.