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Brief Funct Genomics. 2016 May;15(3):222-6. doi: 10.1093/bfgp/elv049. Epub 2015 Nov 18.

Long noncoding RNAs in regulation of human breast cancer.


Less than 2% of the human genome DNA is composed of protein-coding genes, although the majority of the human genome is transcribed, indicating the transcripts mostly are noncoding RNAs. Those noncoding RNAs with length between 200 nt and 200 kb are categorized as long noncoding RNA (lncRNA). Around 30 000 lncRNAs have been predicted or identified, although little is known regarding the regulatory function for a vast majority of these sequences. Emerging evidence demonstrated that lncRNAs play crucial roles in regulation of many cancer types, including breast cancer, serving as oncogenes or tumor suppressors. Aberrant and differential expression of lncRNA in breast cancer has been frequently reported. Their regulation of breast cancer is still the beginning to be elucidated. This review collected those experimentally validated lncRNAs in human breast cancer, summarizing their biological function as well as the regulatory mechanism. In addition, the potential of lncRNAs as biomarkers for better diagnosis or therapeutic targets for cancer treatment was discussed.


breast cancer; long noncoding RNA; oncogene; tumor suppressor

[Indexed for MEDLINE]

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