TCRP1 promotes NIH/3T3 cell transformation by over-activating PDK1 and AKT1.

ABSTRACT: Tongue cancer resistance-related protein 1 (TCRP1) gene was first cloned from the multidrug resistance tongue cancer cell (Tca8113/pingyangmycin) in our lab. Our precious studies demonstrated that TCRP1 was involving in chemotherapy and radiotherapy resistance of tongue cancer cells, lung cancer cells and ovarian cancer cells. In this study, we showed that TCRP1 overexpression promotes cell transformation and tumorigenesis through hyperphosphorylation of the oncogenic kinase 3-phosphoinositide-dependent protein kinase-1 (PDK1) and AKT1, whereas inhibition of PDK1 by OSU-03012 or PDK1 small interfering RNA reversed TCRP1-mediated cell transformation. Importantly, TCRP1 was able to directly interact with PDK1, and 93-107 amino-acid and 109-124 amino-acid sites of TCRP1 were the common bindin

SUBMITTER: Wang C 

PROVIDER: S-EPMC5520495 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature