Targeting the p53 signaling pathway in cancer therapy - the promises, challenges and perils.
Targeting the p53 signaling pathway in cancer therapy - the promises, challenges and perils.
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DOI：
10.1517/14728222.2011.643299
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发表时间：
2012-01
影响因子：
5.8
通讯作者：
Stegh AH
中科院分区：
文献类型：
--
作者：
Stegh AH
Research over the past three decades has identified p53 as a multifunctional transcription factor, which regulates the expression of >2,500 target genes. p53 impacts myriad, highly diverse cellular processes, including the maintenance of genomic stability and fidelity, metabolism, longevity, and represents one of the most important and extensively studied tumor suppressors. Activated by various stresses, foremost genotoxic damage, hypoxia, heat shock and oncogenic assault, p53 blocks cancer progression by provoking transient or permanent growth arrest, by enabling DNA repair or by advancing cellular death programs. This potent and versatile anti-cancer activity profile, together with genomic and mutational analyses documenting inactivation of p53 in more than 50% of human cancers, motivated drug development efforts to (re-) activate p53 in established tumors. In this review the complexities of p53 signaling in cancer are summarized. Current strategies and challenges to restore p53’s tumor suppressive function in established tumors, i.e. adenoviral gene transfer and small molecules to activate p53, to inactivate p53 inhibitors and to restore wild type function of p53 mutant proteins are discussed. It is indubitable that p53 represents an attractive target for the development of anti-cancer therapies. Whether p53 is ‘druggable’, however, remains an area of active research and discussion, as p53 has pro-survival functions and chronic p53 activation accelerates aging, which may compromise the long-term homeostasis of an organism. Thus, the complex biology and dual functions of p53 in cancer prevention and age-related cellular responses pose significant challenges on the development of p53-targeting cancer therapies.
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通讯作者：
Wiman, KG
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HANNON, GJ
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