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Regulation of Metabolic Activity by p53

by Jessica Flöter 1,†, Irem Kaymak 1,† and Almut Schulze 1,2,*
1
Department of Biochemistry and Molecular Biology, Theodor-Boveri-Institute, Biocenter, Am Hubland, 97074 Würzburg, Germany
2
Comprehensive Cancer Center Mainfranken, Josef-Schneider-Strasse 6, 97080 Würzburg, Germany
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Madhu Basetti
Metabolites 2017, 7(2), 21; https://doi.org/10.3390/metabo7020021
Received: 7 April 2017 / Revised: 16 May 2017 / Accepted: 16 May 2017 / Published: 20 May 2017
(This article belongs to the Special Issue Cancer Metabolism)
Metabolic reprogramming in cancer cells is controlled by the activation of multiple oncogenic signalling pathways in order to promote macromolecule biosynthesis during rapid proliferation. Cancer cells also need to adapt their metabolism to survive and multiply under the metabolically compromised conditions provided by the tumour microenvironment. The tumour suppressor p53 interacts with the metabolic network at multiple nodes, mostly to reduce anabolic metabolism and promote preservation of cellular energy under conditions of nutrient restriction. Inactivation of this tumour suppressor by deletion or mutation is a frequent event in human cancer. While loss of p53 function lifts an important barrier to cancer development by deleting cell cycle and apoptosis checkpoints, it also removes a crucial regulatory mechanism and can render cancer cells highly sensitive to metabolic perturbation. In this review, we will summarise the major concepts of metabolic regulation by p53 and explore how this knowledge can be used to selectively target p53 deficient cancer cells in the context of the tumour microenvironment. View Full-Text
Keywords: cancer metabolism; p53 tumour suppressor; fatty acid metabolism; cholesterol; microenvironment cancer metabolism; p53 tumour suppressor; fatty acid metabolism; cholesterol; microenvironment
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Flöter, J.; Kaymak, I.; Schulze, A. Regulation of Metabolic Activity by p53. Metabolites 2017, 7, 21.

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