Inhibition of LPS-Induced Skin Inflammatory Response and Barrier Damage Via MAPK/NF-κB Signaling Pathway by Thunb Fermentation Broth
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Thunb is rich in active substances and has excellent antioxidant and anti-inflammatory activity. Scanning electron microscopy and gel permeation chromatography were used to analyze the molecular characteristics of the fermentation broth of Thunb obtained through fermentation with (HCT-f). The molecular weight of HCT-f was 2.64265 × 10 Da, and the polydispersity coefficient was 183.10, which were higher than that of unfermented broth of Thunb (HCT). By investigating the active substance content and in vitro antioxidant activity of HCT-f and HCT, the results indicated that HCT-f had a higher active substance content and exhibited a superior scavenging effect on 2,2-diphenyl-1-picrylhydrazyl radicals and hydroxyl radicals, with IC50 values of 11.85% and 9.01%, respectively. Our results showed that HCT-f could effectively alleviate the increase in the secretion of inflammatory factors and apoptotic factors caused by lipopolysaccharide (LPS) stimulation, and had a certain effect on repairing skin barrier damage. HCT-f could exert an anti-inflammatory effect by down-regulating signaling in the MAPK/NF-κB pathway. The results of erythrocyte hemolysis and chicken embryo experiments showed that HCT-f had a high safety profile. Therefore, this study provides a theoretical basis for the application of HCT-f as an effective ingredient in food and cosmetics.
Sumneang N, Kobroob A, Phungphong S, Boonhoh W, Punsawad C, Kangwan N Nutrients. 2025; 17(3).
PMID: 39940359 PMC: 11820264. DOI: 10.3390/nu17030501.