Unknown

Dataset Information

0

CDK6 Antagonizes p53-Induced Responses during Tumorigenesis.


ABSTRACT: Tumor formation is a multistep process during which cells acquire genetic and epigenetic changes until they reach a fully transformed state. We show that CDK6 contributes to tumor formation by regulating transcriptional responses in a stage-specific manner. In early stages, the CDK6 kinase induces a complex transcriptional program to block p53 in hematopoietic cells. Cells lacking CDK6 kinase function are required to mutate TP53 (encoding p53) to achieve a fully transformed immortalized state. CDK6 binds to the promoters of genes including the p53 antagonists Prmt5, Ppm1d, and Mdm4 The findings are relevant to human patients: Tumors with low levels of CDK6 have mutations in TP53 significantly more often than expected.Significance: CDK6 acts at the interface of p53 and RB by driving cell-cycle progression and antagonizing stress responses. While sensitizing cells to p53-induced cell death, specific inhibition of CDK6 kinase activity may provoke the outgrowth of p53-mutant clones from premalignant cells. Cancer Discov; 8(7); 884-97. ©2018 AACR.This article is highlighted in the In This Issue feature, p. 781.

SUBMITTER: Bellutti F 

PROVIDER: S-EPMC6031305 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature

altmetric image

Publications


Tumor formation is a multistep process during which cells acquire genetic and epigenetic changes until they reach a fully transformed state. We show that CDK6 contributes to tumor formation by regulating transcriptional responses in a stage-specific manner. In early stages, the CDK6 kinase induces a complex transcriptional program to block p53 in hematopoietic cells. Cells lacking CDK6 kinase function are required to mutate <i>TP53</i> (encoding p53) to achieve a fully transformed immortalized s  ...[more]

Similar Datasets

2018-08-06 | GSE113752 | GEO
| PRJNA453920 | ENA
| S-EPMC7104493 | biostudies-literature
| S-EPMC2922543 | biostudies-literature
| S-EPMC3532233 | biostudies-literature
| S-EPMC2876676 | biostudies-literature
| S-EPMC3597385 | biostudies-literature
| S-EPMC3500430 | biostudies-literature
| S-EPMC5289613 | biostudies-literature
| S-EPMC10575937 | biostudies-literature