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Prev Nutr Food Sci. 2019 Mar;24(1):64-69. doi: 10.3746/pnf.2019.24.1.64. Epub 2019 Mar 31.

Lactobacillus plantarum HY7714 Restores TNF-α Induced Defects on Tight Junctions.

Author information

1
R&BD Center, Korea Yakult Co., Ltd., Gyeonggi 17086, Korea.
2
College of Veterinary Medicine, Konkuk University, Seoul, Korea.

Abstract

In addition to intestinal balance, probiotics are known to have beneficial effects on skin inflammation, metabolic diseases, and emotions. Previously, we have reported the skin anti-aging effects of Lactobacillus plantarum HY7714 (HY7714) in a clinical trial. To prove the protective skin effects of HY7714 through the intestinal tight junction (TJ), we investigated the effects of HY7714 on the intestines through tumor necrosis factor (TNF)-α induced TJ defects in Caco-2 cells. Specifically, 24 h treatment with HY7714 restored the decreased expression of zonula occludens-1, occludin, and claudin-1 compared to the TNF-α-treated groups (P<0.05). It also attenuated the level of pro-inflammatory cytokines interleukin-6, 8, and 1β. Further, increases in the mRNA levels of Elk-1, nuclear factor-κB, and myosin light chain kinase expression induced by TNF-α were recovered by HY7714. These findings imply that HY7714 improves intestinal barrier integrity and is a potential therapeutic agent for dysfunctions derived from TJ defects.

KEYWORDS:

Caco-2 cells; anti-inflammation; lactic acid bacteria; tight junctions

Conflict of interest statement

AUTHOR DISCLOSURE STATEMENT The authors declare no conflict of interest.

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