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P53 dimers elicit unique tumor suppressive activities through an altered metabolic program

ABSTRACT: p53 dimers elicit unique tumor suppressive activities through an altered metabolic program

PROVIDER: PRJNA912177 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22739200_1.fastq.gz	Fastqsanger.gz
	SRR22739200_2.fastq.gz	Fastqsanger.gz
	SRR22739406_1.fastq.gz	Fastqsanger.gz
	SRR22739406_2.fastq.gz	Fastqsanger.gz
	SRR22739407_1.fastq.gz	Fastqsanger.gz

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p53 dimers elicit unique tumor suppressive activities through an altered metabolic program [WES]

Project description:Cancer-related alterations of the p53 Tetramerization Domain (TD) abrogate wild-type (WT) p53 function. They result in a protein that preferentially forms monomers or dimers. These are also normal p53 states under basal cellular conditions. However, their physiological relevance is not well understood. We have established in vivo models for monomeric and dimeric p53 which model Li-Fraumeni Syndrome patients with germline p53 TD alterations. p53 monomers are inactive forms of the protein. Unexpectedly, p53 dimers conferred some tumor suppression that is not mediated by canonical WT p53 activities. p53 dimers upregulate the PPAR pathway. These activities are associated with lower prevalence of thymic lymphomas and inhibition of CD8+ T-cell accumulation. Lymphomas derived from dimeric p53 mice show cooperating alterations in the PPAR pathway, further implicating a role for these activities in tumor suppression. Our data reveal novel functions for p53 dimers and support the exploration of PPAR agonists as therapies.

2023-03-01 | GSE220964 | GEO