Dysregulation of MicroRNAs in cancer

<p>Abstract</p> <p>MicroRNAs (miRNAs) are involved in multiple biological activities as well as disease progression including cancer. Interestingly, miRNAs could act as either tumor suppressors or oncogenes depending on the functions of their targets. Using high-throughput profilin...

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Bibliographic Details
Main Authors: Chen Pai-Sheng, Su Jen-Liang, Hung Mien-Chie
Format: Article
Language:English
Published: BMC 2012-10-01
Series:Journal of Biomedical Science
Subjects:
Online Access:http://www.jbiomedsci.com/content/19/1/90
Description
Summary:<p>Abstract</p> <p>MicroRNAs (miRNAs) are involved in multiple biological activities as well as disease progression including cancer. Interestingly, miRNAs could act as either tumor suppressors or oncogenes depending on the functions of their targets. Using high-throughput profiling, dysregulation of miRNAs has been widely observed in different stages of cancer, and there is mounting evidence demonstrating several misguided mechanisms that cause miRNA dysregulation. In this review, we summarize the key functions of miRNAs in cancer, especially those affecting tumor metastasis and drug resistance. Moreover, the mechanisms leading to dysregulation of miRNAs, including genomic abnormalities, DNA/histone modifications, transcriptional regulation, abnormal biogenesis, and interaction between miRNAs, are also discussed.</p>
ISSN:1021-7770
1423-0127