GAPDH and tongue cancer: Results from the present study suggest a significant downregulation of pro-apoptotic proteins - CKMT1, GAPDH and CA1 and upregulation of anti-apoptotic proteins – SERPIN (A1, B3, B5), YWHAZ, PSME1 and TXN in tongue cancer samples as compared to matched normal samples suggest their role in cell survival during tumorigenesis.