Title : p53-mediated control of aspartate-asparagine homeostasis dictates LKB1 activity and modulates cell survival.

Pub. Date : 2020 Apr 9

PMID : 32273511






4 Functional Relationships(s)
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1 p53-mediated control of aspartate-asparagine homeostasis dictates LKB1 activity and modulates cell survival. Aspartic Acid tumor protein p53 Homo sapiens
2 Here, we report that p53 suppresses asparagine synthesis through the transcriptional downregulation of ASNS expression and disrupts asparagine-aspartate homeostasis, leading to lymphoma and colon tumour growth inhibition in vivo and in vitro. Aspartic Acid tumor protein p53 Homo sapiens
3 Mechanistically, asparagine and aspartate regulate AMPK-mediated p53 activation by physically binding to LKB1 and oppositely modulating LKB1 activity. Aspartic Acid tumor protein p53 Homo sapiens
4 Thus, we found that p53 regulates asparagine metabolism and dictates cell survival by generating an auto-amplification loop via asparagine-aspartate-mediated LKB1-AMPK signalling. Aspartic Acid tumor protein p53 Homo sapiens