期刊
ENVIRONMENTAL TOXICOLOGY
卷 33, 期 11, 页码 1105-1112出版社
WILEY
DOI: 10.1002/tox.22587
关键词
cancer stem cells; chemo-sensitivity; honokiol; oral squamous cell carcinoma
资金
- Chung Shan Medical University Hospital [CSH-2017- C -020]
- Tri-Service General Hospital [TSGH-C105-095]
- National Defense Medical Center Grant [MAB-105-045]
- Chi Mei Medical Center [CMCSMU10604]
- Chung Shan Medical University [CSMU-CMMC-106-04, CSH-2017-C-020]
Oral squamous cell carcinoma (OSCC) is one of the most common cancers worldwide with poor prognosis. Numerous studies have attempted to explore alternative regimens aimed at reducing cancer stem cells (CSCs) without compromising the efficacy of conventional chemoradiotherapy. The present study sought to assess the effect of a natural compound honokiol on the reduction of elevated cancer stemness, metastatic capacity, and chemoresistance of oral carcinoma stem cells (OCSCs). Our results demonstrated that honokiol attenuated the cell survival and self-renewal of OCSCs in a dose-dependent manner. Moreover, honokiol downregulated the expression of 2 selective markers of OCSCs, ALDH1, and CD44, as well as the migration and invasion abilities, indicating its potential to suppress cancer stemness. We showed that honokiol reduced the secretion of IL-6 and phosphorylation of STAT3, and the honokiol-inhibited self-renewal, invasion and colony formation were reversed by administration of IL-6. Most importantly, our data demonstrated that honokiol was able to potentiate the effect of Cisplatin, leading to a lower proportion of OCSCs and the decreased cancer stemness features. Taken together, this study demonstrated the benefits of utilizing honokiol as an adjunct therapy for OSCC treatment.
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