Article
Antifolates targeting purine synthesis allow entry of tumor cells into S phase regardless of p53 function.
Cancer research - 15 Sept 2002
Bronder Julie L, Moran Richard G
Abstract excerpt
The class of folate antimetabolites typified by (6R)-dideazatetrahydrofolate (lometrexol, DDATHF) are specific inhibitors of de novo purine synthesis because of potent inhibition of glycinamide ribonucleotide formyltransferase (GART) but do not induce detectable levels of DNA strand breaks. As such, they are a test case of the concept that ribonucleotide depletion can be sensed by p53, resulting in a G(1) cell...
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