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Suppressive Role of MicroRNA-148a in Cell Proliferation and Invasion in Ovarian Cancer Through Targeting Transforming Growth Factor-β-Induced 2

Min Zhao*1, Zhiying Su†1, Shiyang Zhang, Liangjin Zhuang§, Yudi Xie*, Xiaodong Li*

* Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
† Department of Obstetrics, Maternal and Child Health Hospital of Xiamen City, Xiamen, Fujian, China
‡ Department of Hospital Infection-Control, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
§ Early cancer screening center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
1 These authors provided equal contribution to this work.

Oncology Research 2017, 25(1), 155-155. https://doi.org/10.3727/096504017X14811155525280

Abstract

Ovarian cancer (OC) is one of the most common gynecological malignancies. MicroRNAs (miRs) play a crucial role in the development and progression of OC, but the underlying mechanism remains largely unclear. Our study investigated the regulatory role of miR-148a in OC cell proliferation and invasion. We found that miR- 148a was significantly downregulated in OC tissues compared to their matched adjacent nontumor tissues. In addition, its expression was also reduced in OC cell lines (SKOV3, ES-2, OVCAR, and A2780) compared to normal ovarian epithelial cells. Overexpression of miR-148a caused a significant decrease in OC cell proliferation and invasion, as well as reduced MMP9 protein levels. Transforming growth factor-b-induced 2 (TGFI2) was further identified as a target gene of miR-148a, and its protein expression was downregulated in OC cells after miR-148a overexpression. Restoration of TGFI2 attenuated the suppressive effects of miR-148a on OC cell proliferation and invasion. Moreover, we found that TGFI2 was remarkably upregulated in OC tissues when compared with their matched adjacent nontumor tissues, and observed a reverse correlation between miR-148a and TGFI2 expression in OC tissues. On the basis of these findings, we suggest that miR-148a inhibits OC cell proliferation and invasion partly through inhibition of TGFI2. Therefore, our study highlights the importance of the miR-148a/TGFI2 axis in the malignant progression of OC.

Keywords

Ovarian cancer (OC); MicroRNAS (miRs); Transforming growth factor-β-induced 2 (TGFI2); Proliferation; Invasion

Cite This Article

APA Style
Zhao, M., Su, Z., Zhang, S., Zhuang, L., Xie, Y. et al. (2017). Suppressive Role of MicroRNA-148a in Cell Proliferation and Invasion in Ovarian Cancer Through Targeting Transforming Growth Factor-β-Induced 2. Oncology Research, 25(1), 155–155. https://doi.org/10.3727/096504017X14811155525280
Vancouver Style
Zhao M, Su Z, Zhang S, Zhuang L, Xie Y, Li X. Suppressive Role of MicroRNA-148a in Cell Proliferation and Invasion in Ovarian Cancer Through Targeting Transforming Growth Factor-β-Induced 2. Oncol Res. 2017;25(1):155–155. https://doi.org/10.3727/096504017X14811155525280
IEEE Style
M. Zhao, Z. Su, S. Zhang, L. Zhuang, Y. Xie, and X. Li, “Suppressive Role of MicroRNA-148a in Cell Proliferation and Invasion in Ovarian Cancer Through Targeting Transforming Growth Factor-β-Induced 2,” Oncol. Res., vol. 25, no. 1, pp. 155–155, 2017. https://doi.org/10.3727/096504017X14811155525280



cc Copyright © 2017 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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