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Title 

Anti-proliferative effect of honokiol in oral squamous cancer through the regulation of specificity protein 1

Authors 

D W KimS M KoY J JeonY W NohN J ChoiS D ChoH S MoonY S ChoJ C ShinS M ParkK S SeoJi Young ChoiJ I ChaeJ H Shim

Publisher 

Spandidos Publications

Issue Date 

2013

Citation 

International Journal of Oncology, vol. 43, no. 4, pp. 1103-1110

Keywords 

ApoptosisHonokiolOral squamous cancer cellSpecificity protein 1

Abstract 

Honokiol (HK), a novel plant-derived natural product, is a physiologically activated compound with polyphenolic structure, and has been identified to function as an anticancer agent. It has been widely used in several diseases as a traditional medicine for a long time. We investigated whether HK could show anticancer effects on two oral squamous cell lines (OSCCs), HN-22 and HSC-4. We demonstrated that HK-treated cells showed dramatic reduction in cell growth and apoptotic cell morphologies. Intriguingly, the transcription factor specificity protein 1 (Sp1) was significantly inhibited by HK in a dose-dependent manner. Furthermore, we checked changes in cell cycle regulatory proteins and anti-apoptotic proteins at the molecular level, which are known as Sp1 target genes. The important key regulators in the cell cycle such as p27 and p21 were up-regulated by HK-mediated down-regulation of Sp1, whereas anti-apoptotic proteins including Mcl-1 and survivin were decreased, resulting in caspase-dependent apoptosis. Taken together, results from this study suggest that HK could modulate Sp1 transactivation and induce apoptotic cell death through the regulation of cell cycle and suppression of anti apoptotic proteins. In addition, HK may be used in cancer prevention and therapies to improve the clinical outcome as an anticancer drug.

ISSN 

1019-6439

Link 

http://dx.doi.org/10.3892/ijo.2013.2028

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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