Abstract:
:The tumor suppressor p53 inhibits tumor growth primarily through its ability to induce apoptosis. Mutations in p53 occur in at least 50% of human tumors. We hypothesized that reactivation of mutant p53 in such tumors should trigger massive apoptosis and eliminate the tumor cells. To test this, we screened a library of low-molecular-weight compounds in order to identify compounds that can restore wild-type function to mutant p53. We found one compound capable of inducing apoptosis in human tumor cells through restoration of the transcriptional transactivation function to mutant p53. This molecule, named PRIMA-1, restored sequence-specific DNA binding and the active conformation to mutant p53 proteins in vitro and in living cells. PRIMA-1 rescued both DNA contact and structural p53 mutants. In vivo studies in mice revealed an antitumor effect with no apparent toxicity. This molecule may serve as a lead compound for the development of anticancer drugs targeting mutant p53.
journal_name
Nat Medjournal_title
Nature medicineauthors
Bykov VJ,Issaeva N,Shilov A,Hultcrantz M,Pugacheva E,Chumakov P,Bergman J,Wiman KG,Selivanova Gdoi
10.1038/nm0302-282keywords:
subject
Has Abstractpub_date
2002-03-01 00:00:00pages
282-8issue
3eissn
1078-8956issn
1546-170Xpii
nm0302-282journal_volume
8pub_type
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