The antioxidant function of the p53 tumor suppressor
نویسندگان
چکیده
منابع مشابه
Airing out an antioxidant role for the tumor suppressor p53.
The tumor suppressor p53 exerts its activity by preventing DNA-damaged cells from dividing until either the chromosomal repair is effected or the cell undergoes apoptosis. Reactive oxygen species (ROS) are enhanced through the action of p53-mediated transcription of apoptosis-promoting genes; however, p53 also can promote the expression of many antioxidant genes that prevent apoptosis. New rese...
متن کاملA novel antioxidant function for the tumor-suppressor gene p53 in the retinal ganglion cell.
PURPOSE Recent evidence has suggested that the tumor-suppressor gene p53 has a role in regulating antioxidant response in cancer cells. This study was conducted to determine whether p53 regulates redox enzymes in a neuronal context in RGCs and whether this regulation contributes to an increased survival signal. METHODS The expression of p53, and its putative responsive antioxidant enzymes ses...
متن کاملTumor suppressor p53: regulation and function.
The p53 protein is a transcription factor involved in maintaining genomic integrity by controlling cell cycle progression and cell survival. Mutations in p53 are the most frequently seen genetic alterations in human cancer. The function of p53 is critical to the way many cancer treatments kill cells because radiotherapy and chemotherapy act in part by triggering programmed cell death in respons...
متن کاملGain-of-function mutations in the tumor suppressor gene p53.
The tumor suppressor protein p53 is a multifunctional transcription factor involved in the control of cell cycle progression, DNA integrity, and cell survival. p53 is mutated in half of all tumors and has a wide spectrum of mutation types. p53 mutants show different degrees of dominance over coexpressed wild-type p53, and loss of the wild-type p53 allele has been observed frequently. Several p5...
متن کاملRegulation of the p53 tumor suppressor protein.
Mutations in the p53 tumor suppressor gene occur in about 50% of all human tumors, making it the most frequent target for genetic alterations in cancer (for recent reviews on p53 see Refs. 1–5). Such mutations probably facilitate carcinogenesis primarily through abrogating the tumor suppressor activities of the wild type p53 protein, although at least some forms of tumor-associated mutant p53 p...
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ژورنال
عنوان ژورنال: Nature Medicine
سال: 2005
ISSN: 1078-8956,1546-170X
DOI: 10.1038/nm1320