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2014 ; 85
(ä): 281-319
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Targeting p53-MDM2-MDMX loop for cancer therapy
#MMPMID25201201
Zhang Q
; Zeng SX
; Lu H
Subcell Biochem
2014[]; 85
(ä): 281-319
PMID25201201
show ga
The tumor suppressor p53 plays a central role in anti-tumorigenesis and cancer
therapy. It has been described as "the guardian of the genome", because it is
essential for conserving genomic stability by preventing mutation, and its
mutation and inactivation are highly related to all human cancers. Two important
p53 regulators, MDM2 and MDMX, inactivate p53 by directly inhibiting its
transcriptional activity and mediating its ubiquitination in a feedback fashion,
as their genes are also the transcriptional targets of p53. On account of the
importance of the p53-MDM2-MDMX loop in the initiation and development of wild
type p53-containing tumors, intensive studies over the past decade have been
aiming to identify small molecules or peptides that could specifically target
individual protein molecules of this pathway for developing better anti-cancer
therapeutics. In this chapter, we review the approaches for screening and
discovering efficient and selective MDM2 inhibitors with emphasis on the most
advanced synthetic small molecules that interfere with the p53-MDM2 interaction
and are currently on Phase I clinical trials. Other therapeutically useful
strategies targeting this loop, which potentially improve the prospects of cancer
therapy and prevention, will also be discussed briefly.
|*Genes, p53
[MESH]
|Antineoplastic Agents/pharmacology/therapeutic use
[MESH]