期刊
RNA BIOLOGY
卷 9, 期 6, 页码 781-791出版社
TAYLOR & FRANCIS INC
DOI: 10.4161/rna.20146
关键词
miRNA; p53; mutant p53; wild-type p53; cancer; miRNA dysregulation
资金
- National Institutes of Health, National Cancer Institute, Center for Cancer Research
The tumor suppressor p53 is a sequence-specific transcription factor that activates the expression of genes involved in apoptosis, cell cycle arrest and senescence. p53 can also inhibit gene expression and this effect is partly mediated by inducing several microRNAs (miRNAs). MiRNAs have emerged as a new class of regulators of the expression and function of eukaryotic genomes. Tumor suppressive or oncogenic functions have been attributed to some miRNAs. Recent studies have shown that p53 can alter the transcription of several miRNAs, and in some cases, it can also influence miRNA maturation. Conversely, miRNAs can also modulate the abundance and activity of p53 by direct or indirect mechanisms. Moreover, mutant p53 can actively repress the expression of some miRNAs that are activated by wild-type p53. In this review, we discuss recent evidences of this crosstalk between miRNAs and the p53 network and also highlight its implications in cancer.
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