Alpha-tocopherylquinone differentially modulates claudins to enhance intestinal epithelial tight junction barrier via AhR and Nrf2 pathways.
Alpha-tocopherylquinone differentially modulates claudins to enhance intestinal epithelial tight junction barrier via AhR and Nrf2 pathways.
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DOI:
10.1016/j.celrep.2023.112705
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发表时间:
2023-07-25
期刊:
影响因子:
8.8
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中科院分区:
文献类型:
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Defects in intestinal epithelial tight junctions (TJs) allow paracellular permeation of noxious luminal antigens and are important pathogenic factors in inflammatory bowel disease (IBD). We show that alpha-tocopherylquinone (TQ), a quinone-structured oxidation product of vitamin E, consistently enhances the intestinal TJ barrier by increasing barrier-forming claudin-3 (CLDN3) and reducing channel-forming CLDN2 in Caco-2 cell monolayers (in vitro), mouse models (in vivo), and surgically resected human colons (ex vivo). TQ reduces colonic permeability and ameliorates colitis symptoms in multiple colitis models. TQ, bifunctionally, activates both aryl hydrocarbon receptor (AhR) and nuclear factor erythroid 2-related factor 2 (Nrf2) pathways. Genetic deletion studies reveal that TQ-induced AhR activation transcriptionally increases CLDN3 via xenobiotic response element (XRE) in the CLDN3 promoter. Conversely, TQ suppresses CLDN2 expression via Nrf2-mediated STAT3 inhibition. TQ offers a naturally occurring, non-toxic intervention for enhancement of the intestinal TJ barrier and adjunct therapeutics to treat intestinal inflammation. Ganapathy et al. show that alphatocopherylquinone reduces intestinal paracellular permeability via an AhR-mediated increase in tight junction barrier-forming CLDN3 and an Nrf2-mediated reduction in channel-forming CLDN2 expression. α-tocopherylquinone-mediated enhancement of the tight junction barrier is associated with amelioration of experimental colitis.
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影响因子:
8
作者:
Krug SM;Bojarski C;Fromm A;Lee IM;Dames P;Richter JF;Turner JR;Fromm M;Schulzke JD
通讯作者:
Schulzke JD
影响因子:
13.3
作者:
Ganapathy, Ashwinkumar Subramenium;Saha, Kushal;Nighot, Prashant
通讯作者:
Nighot, Prashant
影响因子:
5.2
作者:
Garcia-Hernandez V;Quiros M;Nusrat A
通讯作者:
Nusrat A
影响因子:
24.5
作者:
Arrieta, M. C.;Madsen, K.;Doyle, J.;Meddings, J.
通讯作者:
Meddings, J.
影响因子:
--
作者:
Hanieh H
通讯作者:
Hanieh H