The Dual Regulatory Role of MiR-181a in Breast Cancer

Autor: Chun Yang, Seyed Nasrollah Tabatabaei, Xiangyan Ruan, Pierre Hardy
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Cellular Physiology and Biochemistry, Vol 44, Iss 3, Pp 843-856 (2017)
Druh dokumentu: article
ISSN: 1015-8987
1421-9778
DOI: 10.1159/000485351
Popis: MicroRNAs (miRNAs) are a family of highly conserved noncoding single˗stranded RNA molecules of 21 to 25 nucleotides. miRNAs silence their cognate target genes at the post-transcriptional level and have been shown to have important roles in oncogenesis, invasion, and metastasis via epigenetic post-transcriptional gene regulation. Recent evidence indicates that the expression of miR-181a is altered in breast tumor tissue and in the serum of patients with breast cancer. However, there are several contradicting findings that challenge the biological significance of miR-181a in tumor development and metastasis. In fact, some studies have implicated miR-181a in regulating breast cancer gene expression. Here we summarize the current literature demonstrating established links between miR-181a and human breast cancer with a focus on recently identified mechanisms of action. This review also aims to explore the potential of miR-181a as a diagnostic and/or prognostic biomarker for breast cancer and to discuss the contradicting data regarding its targeting therapeutics and the associated challenges.
Databáze: Directory of Open Access Journals