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KMID : 0604520170430020136
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Journal of the Society of Cosmetic Scientists of Korea
2017 Volume.43 No. 2 p.136 ~ p.147
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Novel Sporichthyaceae Bacterium Strain K-07 Skin Barrier, Moisturizing and Anti-inflammatory Activity
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Lee Dong-Geol
Kim Min-Ji
Kang Seung-Hyun
Kim Youn-Joon
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Abstract
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The human skin is an ecosystem that provides habitat to various microorganisms. These comprise the skin microbiome and provide numerous benefits in addition to maintaining a symbiotic relation with the host. Various metabolites generated by the skin microbiome exert beneficial effects such as strengthening the skin barrier, and anti-aging and anti-inflammatory functions. In this study, we isolated a novel bacterium, designated Sporichthyacae strain K-07, from the human skin. Analysis of 16S rRNA gene sequences showed that the newly found bacterium shares 93.4% homology with the genus Sporichthya, thus corroborating the discovery of a novel genus. We further analyzed the effect of the novel strain in vitro, by treating HaCaT cells with bacterial metabolite products. Treatment resulted in changes in the mRNA expression levels of filaggrin, claudin1, claudin4, SMase, CERS3, HAS3, aquaporin3, IL-6, TNF-α, TSLP, and TARC. Specifically, the levels of filaggrin, claudin1, claudin4, SMase, CERS3, HAS3, and aquaporin3 were higher in strain K-07 metabolite product-treated cells than in control cells. These results showed that metabolite products of the novel strain K-07 enhanced the skin barrier and exert anti-inflammatory effects. Therefore, these metabolite products could be potentially used for treatment of skin conditions.
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KEYWORD
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skin microbiome , cosmetic , Sporichthyaceae , symbiotic bacteria , skin barrier
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