Coenzyme Q10 suppresses Th17 cells and osteoclast differentiation and ameliorates experimental autoimmune arthritis mice.

Abstract:

:Coenzyme Q10 (CoQ10) is a lipid-soluble antioxidant synthesized in human body. This enzyme promotes immune system function and can be used as a dietary supplement. Rheumatoid arthritis (RA) is an autoimmune disease leading to chronic joint inflammation. RA results in severe destruction of cartilage and disability. This study aimed to investigate the effect of CoQ10 on inflammation and Th17 cell proliferation on an experimental rheumatoid arthritis (RA) mice model. CoQ10 or cotton seed oil as control was orally administrated once a day for seven weeks to mice with zymosan-induced arthritis (ZIA). Histological analysis of the joints was conducted using immunohistochemistry. Germinal center (GC) B cells, Th17 cells and Treg cells of the spleen tissue were examined by confocal microscopy staining. mRNA expression was measured by real-time PCR and protein levels were estimated by enzyme-linked immunosorbent assay (ELISA). Flow cytometric analysis (FACS) was used to evaluate Th17 cells and Treg cells. CoQ10 mitigated the severity of ZIA and decreased serum immunoglobulin concentrations. CoQ10 also reduced RANKL-induced osteoclastogenesis, inflammatory mediators and oxidant factors. Th17/Treg axis was reciprocally controlled by CoQ10 treatment. Moreover, CoQ10 treatment on normal mouse and human cells cultured in Th17 conditions decreased the number of Th17 cells and enhanced the number of Treg cells. CoQ10 alleviates arthritis in mice with ZIA declining inflammation, Th17 cells and osteoclast differentiation. These findings suggest that CoQ10 can be a potential therapeutic substance for RA.

journal_name

Immunol Lett

journal_title

Immunology letters

authors

Jhun J,Lee SH,Byun JK,Jeong JH,Kim EK,Lee J,Jung YO,Shin D,Park SH,Cho ML

doi

10.1016/j.imlet.2015.05.012

subject

Has Abstract

pub_date

2015-08-01 00:00:00

pages

92-102

issue

2

eissn

0165-2478

issn

1879-0542

pii

S0165-2478(15)00088-7

journal_volume

166

pub_type

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