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Biomed Rep. 2016 Feb;4(2):131-134. Epub 2015 Dec 2.

miR-126: A novel regulator in colon cancer.

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The First Clinical Medical College, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.
Department of Pathology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China.
Department of Critical Care and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Science, Guangdong Geriatric Institute, Guangzhou, Guandong 510080, P.R. China.


Colon cancer is one of the most common, lethal diseases worldwide. Tumor metastasis and chemotherapy resistance are the main reasons for its poor prognosis and high fatality rate. Tumor development is thought of as one of the most complex cellular events as it is a multi-step cascading process involving infinite proliferation, invasion and immigration. Recently, increasing studies have demonstrated that microRNA-126 (miR-126) has an important role in colon cancer. The expression of miR-126 decreased significantly in colon cancer, particularly in highly metastatic cell lines. miR-126 controls tumor cell growth, metastasis and survival via inactivation of the oncogene signaling pathway, indicating that miR-126 may serve as a therapeutic target for anticancer therapy. Potentially, miR-126 was also reported to be an ideal molecular target as a novel biomarker for liver metastasis from colorectal cancer due to its changeable expression level. In the present review, the current knowledge regarding regulatory function of miR-126 is summarized along with its underlying mechanisms in colon cancer.


biomarker; colon cancer; microRNA-126; tumor metastasis

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