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J Food Sci. 2014 Sep;79(9):H1823-31. doi: 10.1111/1750-3841.12555. Epub 2014 Aug 23.

Resveratrol preserves mitochondrial function, stimulates mitochondrial biogenesis, and attenuates oxidative stress in regulatory T cells of mice fed a high-fat diet.

Author information

1
State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan Univ, Wuxi, Jiangsu, 214122, China.

Abstract

Consumption of high-fat diet (HFD) is related with increased oxidative stress and dysfunctional mitochondria in many organs. The effects of resveratrol (trans-3,5,4'-trihydroxystilbene) that can protect T lymphocytes in various disease conditions on the HFD-induced apoptosis of CD4(+) CD25(+) CD127(low/-) regulatory T cells (Tregs) were studied, and the possible mechanism was postulated. Resveratrol significantly decreased Tregs death induced by 20-wk HFD, being associated with the reduction of reactive oxygen species production and the alleviation of HFD-induced loss of mitochondrial membrane potential (Δψm) in Tregs. Furthermore, resveratrol increased the expression of factors that regulated mitochondrial biogenesis in Tregs. Finally, resveratrol recovered the HFD-induced activation of apoptotic markers in Tregs. Resveratrol protected Tregs against HFD-induced apoptosis by reducing oxidative stress, restoring mitochondrial functional activities, and stimulating mitochondrial biogenesis.

KEYWORDS:

high-fat diet; mitochondria; oxidative stress; regulatory T cells; resveratrol

PMID:
25156660
DOI:
10.1111/1750-3841.12555
[Indexed for MEDLINE]

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