Mycolactone cytotoxicity in Schwann cells could explain nerve damage in Buruli ulcer.

Buruli ulcer is a chronic painless skin disease caused by Mycobacterium ulcerans. The local nerve damage induced by M. ulcerans invasion is similar to the nerve damage evoked by the injection of mycolactone in a Buruli ulcer mouse model. In order to elucidate the mechanism of this nerve damage, we t...

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Bibliographic Details
Published in:PLOS Neglected Tropical Diseases
Main Authors: Junichiro En, Sho Kitamoto, Akira Kawashima, Suguru Yonezawa, Yoshito Kishi, Norihisa Ishii, Masamichi Goto
Format: Article in Journal/Newspaper
Language:English
Published: Public Library of Science (PLoS) 2017
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Online Access:https://doi.org/10.1371/journal.pntd.0005834
https://doaj.org/article/361bc656c9f5454c94ff3f757c0d60ee
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Summary:Buruli ulcer is a chronic painless skin disease caused by Mycobacterium ulcerans. The local nerve damage induced by M. ulcerans invasion is similar to the nerve damage evoked by the injection of mycolactone in a Buruli ulcer mouse model. In order to elucidate the mechanism of this nerve damage, we tested and compared the cytotoxic effect of synthetic mycolactone A/B on cultured Schwann cells, fibroblasts and macrophages. Mycolactone induced much higher cell death and apoptosis in Schwann cell line SW10 than in fibroblast line L929. These results suggest that mycolactone is a key substance in the production of nerve damage of Buruli ulcer.