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Soluble epoxide hydrolase inhibitor, TPPU, increases regulatory T cells pathway in an arthritis model.


ABSTRACT: Epoxyeicosatrienoic acids (EET) and related epoxy fatty acids (EpFA) are endogenous anti-inflammatory compounds, which are converted by the soluble epoxide hydrolase (sEH) to dihydroxylethersatrienoic acids (DHETs) with lessened biological effects. Inhibition of sEH is used as a strategy to increase EET levels leading to lower inflammation. Rheumatoid arthritis is a chronic autoimmune disease that leads to destruction of joint tissues. This pathogenesis involves a complex interplay between the immune system, and environmental factors. Here, we investigate the effects of inhibiting sEH with 1-trifluoromethoxyphenyl-3-(1-propionylpiperidin-4-yl) urea (TPPU) on a collagen-induced arthritis model. The treatment with TPPU ameliorates hyperalgesia, edema, and decreases the expression of important pro-inflammatory cytokines of Th1 and Th17 profiles, while increasing Treg cells. Considering the challenges to control RA, this study provides robust data supporting that inhibition of the sEH is a promising target to treat arthritis.

SUBMITTER: Trindade-da-Silva CA 

PROVIDER: S-EPMC7383812 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature

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Soluble epoxide hydrolase inhibitor, TPPU, increases regulatory T cells pathway in an arthritis model.

Trindade-da-Silva Carlos A CA   Clemente-Napimoga Juliana T JT   Abdalla Henrique B HB   Rosa Sergio Marcolino SM   Ueira-Vieira Carlos C   Morisseau Christophe C   Verri Waldiceu A WA   Montalli Victor Angelo Martins VAM   Hammock Bruce D BD   Napimoga Marcelo H MH  

FASEB journal : official publication of the Federation of American Societies for Experimental Biology 20200513 7


Epoxyeicosatrienoic acids (EET) and related epoxy fatty acids (EpFA) are endogenous anti-inflammatory compounds, which are converted by the soluble epoxide hydrolase (sEH) to dihydroxylethersatrienoic acids (DHETs) with lessened biological effects. Inhibition of sEH is used as a strategy to increase EET levels leading to lower inflammation. Rheumatoid arthritis is a chronic autoimmune disease that leads to destruction of joint tissues. This pathogenesis involves a complex interplay between the i  ...[more]

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