期刊
FEBS LETTERS
卷 585, 期 13, 页码 2087-2099出版社
WILEY
DOI: 10.1016/j.febslet.2010.08.009
关键词
MicroRNA; Epigenetics; DNA methylation; Cancer
资金
- ICREA Funding Source: Custom
MicroRNAs [1] have emerged as key post-transcriptional regulators of gene expression, involved in various physiological and pathological processes. It was found that several miRNAs are directly involved in human cancers, including lung, breast, brain, liver, colon cancer and leukemia. In addition, some miRNAs may function as oncogenes or tumor suppressors in tumor development. Furthermore, a widespread down-regulation of miRNAs is commonly observed in human cancers and promotes cellular transformation and tumorigenesis [2-5]. More than 50% of miRNA genes are located in cancer-associated genomic regions or in fragile sites, frequently amplified or deleted in human cancer, suggesting an important role in malignant transformation. A better understanding of the miRNA regulation and misexpression in cancer may ultimately yield further insight into the molecular mechanisms of tumorigenesis and new therapeutic strategies may arise against cancer. Here, we discuss the occurrence of the deregulated expression of miRNAs in human cancers and their importance in the tumorigenic process. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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