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Lactobacillus paracasei KW3110 Prevents Blue Light-Induced Inflammation and Degeneration in the Retina

Authors :
Yuji Morita
Yukihiro Miwa
Kenta Jounai
Daisuke Fujiwara
Toshihide Kurihara
Osamu Kanauchi
Source :
Nutrients, Vol 10, Iss 12, p 1991 (2018)
Publication Year :
2018
Publisher :
MDPI AG, 2018.

Abstract

Age-related macular degeneration and retinitis pigmentosa are leading causes of blindness and share a pathological feature, which is photoreceptor degeneration. To date, the lack of a potential treatment to prevent such diseases has raised great concern. Photoreceptor degeneration can be accelerated by excessive light exposure via an inflammatory response; therefore, anti-inflammatory agents would be candidates to prevent the progress of photoreceptor degeneration. We previously reported that a lactic acid bacterium, Lactobacillus paracasei KW3110 (L. paracasei KW3110), activated macrophages suppressing inflammation in mice and humans. Recently, we also showed that intake of L. paracasei KW3110 could mitigate visual display terminal (VDT) load-induced ocular disorders in humans. However, the biological mechanism of L. paracasei KW3110 to retain visual function remains unclear. In this study, we found that L. paracasei KW3110 activated M2 macrophages inducing anti-inflammatory cytokine interleukin-10 (IL-10) production in vitro using bone marrow-derived M2 macrophages. We also show that IL-10 gene expression was significantly increased in the intestinal immune tissues 6 h after oral administration of L. paracasei KW3110 in vivo. Furthermore, we demonstrated that intake of L. paracasei KW3110 suppressed inflammation and photoreceptor degeneration in a murine model of light-induced retinopathy. These results suggest that L. paracasei KW3110 may have a preventive effect against degrative retinal diseases.

Details

Language :
English
ISSN :
20726643
Volume :
10
Issue :
12
Database :
Directory of Open Access Journals
Journal :
Nutrients
Publication Type :
Academic Journal
Accession number :
edsdoj.890ee965522747a181bcf3a864dc4f87
Document Type :
article
Full Text :
https://doi.org/10.3390/nu10121991