miR‑6852 serves as a prognostic biomarker in colorectal cancer and inhibits tumor growth and metastasis by targeting TCF7

Cui,Bao‑Hong; Hong,Xuan

doi:10.3892/etm.2018.6259

miR‑6852 serves as a prognostic biomarker in colorectal cancer and inhibits tumor growth and metastasis by targeting TCF7

Authors:
- Bao‑Hong Cui
- Xuan Hong
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Affiliations: Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150086, P.R. China, Department of Thoracic Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150086, P.R. China
Published online on: June 7, 2018 https://doi.org/10.3892/etm.2018.6259
Pages: 879-885
Copyright: © Cui et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

MicroRNAs (miRs) are have been demonstrated to serve important functions in the genesis of human cancer, including colorectal cancer (CRC). The role of miR‑6852 in CRC remains unknown. In this study, it was demonstrated that miR‑6852 was underexpressed in CRC tissues compared with adjacent normal tissues. Moreover, the expression of miR‑6852 was negatively correlated with CRC metastasis, whereas positively correlated with patient prognosis. It was revealed that the overexpression of miR‑6852 significantly inhibited the proliferation and invasion of CRC cells. miR‑6852 overexpression reduced CRC cells in the S phase. TCF7 was identified to be a direct target of miR‑6852 in CRC cells. Overexpression of miR‑6852 significantly inhibited the mRNA and protein levels of TCF7 in CRC cells. Furthermore, TCF7 was highly expressed in CRC tissues and cell lines. TCF7 expression was negatively correlated with miR‑6852 levels in CRC tissues. Finally, knockdown of TCF7 significantly suppressed the proliferation and invasion of CRC cells. Taken together, the results of the present study indicated that miR‑6852 serves as a tumor suppressor in CRC through targeting TCF7.

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