Article Publish Status: FREE
Abstract Title:

Honokiol inhibits arecoline-induced oral fibrogenesis through transforming growth factor-β/Smad2/3 signaling inhibition.

Abstract Source:

J Formos Med Assoc. 2021 May 9. Epub 2021 May 9. PMID: 33980461

Abstract Author(s):

Pei-Yin Chen, Dennis Chun-Yu Ho, Yi-Wen Liao, Pei-Ling Hsieh, Kai-Hsi Lu, Lo-Lin Tsai, Sheng-Hua Su, Cheng-Chia Yu

Article Affiliation:

Pei-Yin Chen


BACKGROUND/PURPOSE: The habit of areca nut chewing has been regarded as an etiological factor of precancerous oral submucous fibrosis (OSF). In the present study, we aimed to evaluate the anti-fibrosis effect of honokiol, a polyphenolic component derived from Magnolia officinalis.

METHODS: The cytotoxicity of honokiol was tested using normal and fibrotic buccal mucosal fibroblasts (fBMFs) derived from OSF tissues. Collagen gel contraction, Transwell migration, invasion, and wound healing capacities were examined. Besides, the expression of TGF-β/Smad2 signaling as well as α-SMA and type I collagen were measured as well.

RESULTS: Honokiol exerted higher cytotoxicity of fBMFs compared to normal cells. The arecoline-induced myofibroblast activities, including collagen gel contractility, cell motility and wound healing capacities were all suppressed by honokiol treatment. In addition, the expression of the TGF-β/Smad2 pathway was downregulated along with a lower expression of α-SMA and type I collagen in honokiol-receiving cells.

CONCLUSION: Our data suggest that honokiol may be a promising compound to alleviate the progression of oral fibrogenesis and prevent the transformation of OSF oral epithelium into cancer.

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