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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Drug+Des+Devel+Ther
2017 ; 11
(ä): 1663-1671
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Rhein attenuates inflammation through inhibition of NF-?B and NALP3 inflammasome
in vivo and in vitro
#MMPMID28652704
Ge H
; Tang H
; Liang Y
; Wu J
; Yang Q
; Zeng L
; Ma Z
Drug Des Devel Ther
2017[]; 11
(ä): 1663-1671
PMID28652704
show ga
Rhein is an important component in traditional Chinese herbal medicine
formulations for gastrointestinal disorders, including inflammatory bowel
diseases such as ulcerative colitis. In this study, we investigated the
beneficial effects of rhein in inflammation models in the transgenic zebrafish
line TG (corolla eGFP), in which both macrophages and neutrophils express eGFP
and RAW264.7 macrophages. We found that the tail-cutting-induced migration of
immune cells was significantly reduced in transgenic zebrafish treated with
rhein. In addition, the production of proinflammatory cytokines, including IL-6,
IL-1?, and tumor necrosis factor-?, were significantly reduced in
lipopolysaccharide (LPS)-induced RAW264.7 macrophages treated with rhein.
Parallel to the inhibition of proinflammatory cytokines, rhein significantly
reduced phosphorylation levels of NF-?B p65 and inducible nitric oxide synthase,
as well as COX-2 protein expression levels. Furthermore, rhein significantly
reduced NALP3 and cleaved IL-1? expression in LPS + ATP-induced RAW264.7
macrophages. Thus, the present study demonstrates that rhein may exhibit its
anti-inflammatory action via inhibition of NF-?B and NALP3 inflammasome pathways.