Recently, it has been demonstrated that the TCTP protein promotes the degradation of p53 protein, stabilization of myeloid leukemia cell differentiation protein 1 (Mcl-1) protein, and inhibition of Bax dimerization, all of which promote cell survival7,13–17 and explain how increased expression of TCTP in cancer promotes tumor growth and maintenance. This evidence concerns the gene MCL1 and neoplasm.