Journal
MOLECULES
Volume 16, Issue 5, Pages 3908-3932Publisher
MDPI
DOI: 10.3390/molecules16053908
Keywords
Thai medicinal herbs; NF-kappa B signaling biomarkers; psoriasis; keratinocytes; gene expression
Funding
- Chulalongkorn University
- national research council of Thailand
- Faculty of Allied Health Sciences, Chulalongkorn University
- Graduate School, Chulalongkorn University
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Psoriasis is a chronic inflammatory skin disorder characterized by rapid proliferation of keratinocytes and incomplete keratinization. Discovery of safer and more effective anti-psoriatic drugs remains an area of active research at the present time. Using a HaCaT keratinocyte cell line as an in vitro model, we had previously found that ethanolic extracts from three Thai medicinal herbs, namely Alpinia galanga, Curcuma longa and Annona squamosa, possessed anti-psoriatic activity. In the current study, we aimed at investigating if these Thai medicinal herb extracts played a molecular role in suppressing psoriasis via regulation of NF-kappa B signaling biomarkers. Using semi-quantitative RT-PCR and report gene assays, we analyzed the effects of these potential herbal extracts on 10 different genes of the NF-kappa B signaling network in HaCaT cells. In accordance with our hypothesis, we found that the extract derived from Alpinia galanga significantly increased the expression of TNFAIP3 and significantly reduced the expression of CSF-1 and NF-kappa B2. Curcuma longa extract significantly decreased the expression of CSF-1, IL-8, NF-kappa B2, NF-kappa B1 and RelA, while Annona squamosa extract significantly lowered the expression of CD40 and NF-kappa B1. Therefore, this in vitro study suggested that these herbal extracts capable of functioning against psoriasis, might exert their activity by controlling the expression of NF-kappa B signaling biomarkers.
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