Title : The 1,2-Diaminocyclohexane Carrier Ligand in Oxaliplatin Induces p53-Dependent Transcriptional Repression of Factors Involved in Thymidylate Biosynthesis.

Pub. Date : 2015 Oct

PMID : 26208523






6 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 The 1,2-Diaminocyclohexane Carrier Ligand in Oxaliplatin Induces p53-Dependent Transcriptional Repression of Factors Involved in Thymidylate Biosynthesis. Oxaliplatin tumor protein p53 Homo sapiens
2 In the p53-proficient colorectal cancer cell line HCT116, oxaliplatin represses the expression of deoxyuridine triphosphatase (dUTPase), a ubiquitous pyrophosphatase that catalyzes the hydrolysis of dUTP to dUMP and inhibits dUTP-mediated cytotoxicity. Oxaliplatin tumor protein p53 Homo sapiens
3 Oxaliplatin induced early p53 accumulation, upregulation of primary miR-34a transcript expression, and subsequent downregulation of E2F3 and E2F1. Oxaliplatin tumor protein p53 Homo sapiens
4 In addition to DUT-N, oxaliplatin repressed, in a p53-dependent manner, the expression of genes encoding enzymes involved in thymidylate biosynthesis. Oxaliplatin tumor protein p53 Homo sapiens
5 Consequently, oxaliplatin significantly decreased the level of dTTP in the dNTP pool in a p53-dependent manner. Oxaliplatin tumor protein p53 Homo sapiens
6 These data indicate that the DACH carrier ligand in oxaliplatin triggers signaling via the p53-miR-34a-E2F axis, leading to transcriptional regulation that ultimately results in accumulation of dUTP and reduced dTTP biosynthesis, potentially enhancing 5-FU cytotoxicity. Oxaliplatin tumor protein p53 Homo sapiens