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miR-26b regulates cell proliferation and apoptosis of CD117+CD44+ ovarian cancer stem cells by targeting PTEN

Authors

Zubiao Gao
Department of Obstetrics and Gynecology, Foshan Chancheng Central Hospital, Foshan, Guangdong, China.
Xiaofeng Ye
Department of Obstetrics and Gynecology, Foshan Chancheng Central Hospital, Foshan, Guangdong, China.
Anne Bordeaux
Department of Pathology, Medical Center, University of Freiburg, Baden-Wuerttemberg, Germany.
Stanka Hettich
Department of Obstetrics and Gynecology, Medical Center, University of Freiburg, Baden-Wuerttemberg, Germany.
Siyao Lin
Department of Obstetrics and Gynecology, Foshan Chancheng Central Hospital, Foshan, Guangdong, China.
Fang Han
hanfang@gmx.com
https://orcid.org/0000-0001-7709-3725
Department of Obstetrics and Gynecology, Foshan Chancheng Central Hospital, Foshan, Guangdong, China.
Yan Jia
Department of Reproductive Immunology, Chengdu Xi’ nan Gynecology Hospital, Chengdu, Sichuan, China.

Ovarian cancer (OC) is the one of the most common cancer in women globally. However, it still represents the most dangerous gynecologic malignancy even with the advances in detection and therapeutics. Thus, there is an urgent need in finding more effective therapeutic options for OC patients including cancer stem cells (CSC). MicroRNAs (miRNAs) are small, endogenous, and non-coding RNAs that play critical roles in the progression of various types of tumor. Our aim of this study was to find the regulatory function of microRNA-26 (miRNA-26b) on the cell proliferation and apoptosis of ovarian CSCs. Our studies show that miR-26b is under-regulated in human CD117+CD44+ ovarian CSCs. The miR-26b overexpression inhibits the cell proliferation and promotes cell apoptosis. Moreover, phosphatase and tensin homolog (PTEN) is found to be a functional target of miR-26b. Moreover, PTEN overexpression reversed the effects of miR-26b on the cell proliferation and apoptosis. PTEN overexpression remarkably accelerated the cell proliferation, and inhibited cell apoptosis. These results indicate that miR-26b regulates cell proliferation and apoptosis of CD117+CD44+ ovarian CSCs by targeting PTEN.>

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How to Cite

Gao, Z., Ye, X., Bordeaux, A., Hettich, S., Lin, S., Han, F., & Jia, Y. (2021). miR-26b regulates cell proliferation and apoptosis of CD117+CD44+ ovarian cancer stem cells by targeting PTEN. European Journal of Histochemistry, 65(1). https://doi.org/10.4081/ejh.2021.3186

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