Oncotarget

Research Papers:

This article has been corrected. Correction in: Oncotarget. 2018; 9:24870.

Berberine-targeted miR-21 chemosensitizes oral carcinomas stem cells

Che-Yi Lin, Pei-Ling Hsieh, Yi-Wen Liao, Chih-Yu Peng, Ming-Yi Lu, Ching-Hsuan Yang, Cheng-Chia Yu _ and Chia-Ming Liu

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Oncotarget. 2017; 8:80900-80908. https://doi.org/10.18632/oncotarget.20723

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Abstract

Che-Yi Lin1, Pei-Ling Hsieh2,*, Yi-Wen Liao3,*, Chih-Yu Peng3, Ming-Yi Lu3, Ching-Hsuan Yang2, Cheng-Chia Yu2,3,4 and Chia-Ming Liu3,4

1Department of Oral and Maxillofacial Surgery, Chi Mei Hospital, Tainan, Taiwan

2Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan

3School of Dentistry, Chung Shan Medical University, Taichung, Taiwan

4Department of Dentistry, Chung Shan Medical University, Taichung, Taiwan

*These authors have contributed equally to this work

Correspondence to:

Cheng-Chia Yu, email: ccyu@csmu.edu.tw

Chia-Ming Liu, email: y337@csmu.edu.tw

Keywords: oral squamous cell carcinomas, miR-21, berberine

Received: June 16, 2017     Accepted: August 04, 2017     Published: September 08, 2017

ABSTRACT

Cancer recurrence and chemoresistance are two major obstacles to the treatment of oral squamous cell carcinomas (OSCC). And cancer stem cells (CSCs) have been found to possess tumor initiating, self-renewal and metastasis abilities, resulting in the relapse and chemoresistance of OSCC. In the present study, we investigated the anti-CSCs effect of berberine, a phenanthrene alkaloid isolated from the Berberis genus. Our results demonstrated that berberine dose dependently downregulated the oncogenicity in vitro, including ALDH1 activity, self-renewal property, and colony formation and invasion abilities as well as potentiated chemosensitivity of OSCC-CSCs. In addition, tumor growth in mice was attenuated after oral gavage treatment of berberine. We showed that the expression of miR-21 was suppressed following administration of berberine in OSCC-CSCs. And inhibition of endogenous miR-21 reduced the characteristics of CSCs, including self-renewal, migration, invasion capabilities and ALDH1 activity. Taken together, we demonstrated the anti-CSC effect of berberine in oral cancer and its potential to serve as adjuvant to traditional chemotherapy to improve treatment effect.


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