The complex effects of the slow-releasing hydrogen sulfide donor GYY4137 in a model of acute joint inflammation and in human cartilage cells.
The complex effects of the slow-releasing hydrogen sulfide donor GYY4137 in a model of acute joint inflammation and in human cartilage cells.
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DOI:
10.1111/jcmm.12016
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发表时间:
2013-03
影响因子:
5.3
通讯作者:
Whiteman M
中科院分区:
文献类型:
--
作者:
Li L;Fox B;Keeble J;Salto-Tellez M;Winyard PG;Wood ME;Moore PK;Whiteman M
The role of hydrogen sulfide (H2S) in inflammation remains unclear with both pro- and anti-inflammatory actions of this gas described. We have now assessed the effect of GYY4137 (a slow-releasing H2S donor) on lipopolysaccharide (LPS)-evoked release of inflammatory mediators from human synoviocytes (HFLS) and articular chondrocytes (HAC) in vitro. We have also examined the effect of GYY4137 in a complete Freund's adjuvant (CFA) model of acute joint inflammation in the mouse. GYY4137 (0.1–0.5 mM) decreased LPS-induced production of nitrite (NO2−), PGE2, TNF-α and IL-6 from HFLS and HAC, reduced the levels and catalytic activity of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) and reduced LPS-induced NF-κB activation in vitro. Using recombinant human enzymes, GYY4137 inhibited the activity of COX-2, iNOS and TNF-α converting enzyme (TACE). In the CFA-treated mouse, GYY4137 (50 mg/kg, i.p.) injected 1 hr prior to CFA increased knee joint swelling while an anti-inflammatory effect, as demonstrated by reduced synovial fluid myeloperoxidase (MPO) and N-acetyl-β-D-glucosaminidase (NAG) activity and decreased TNF-α, IL-1β, IL-6 and IL-8 concentration, was apparent when GYY4137 was injected 6 hrs after CFA. GYY4137 was also anti-inflammatory when given 18 hrs after CFA. Thus, although GYY4137 consistently reduced the generation of pro-inflammatory mediators from human joint cells in vitro, its effect on acute joint inflammation in vivo depended on the timing of administration.
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影响因子:
5.3
作者:
Fox B;Schantz JT;Haigh R;Wood ME;Moore PK;Viner N;Spencer JP;Winyard PG;Whiteman M
通讯作者:
Whiteman M
影响因子:
4.8
作者:
Chiku, Taurai;Padovani, Dominique;Banerjee, Ruma
通讯作者:
Banerjee, Ruma
影响因子:
4.8
作者:
Singh, Sangita;Padovani, Dominique;Banerjee, Ruma
通讯作者:
Banerjee, Ruma
影响因子:
7.4
作者:
Li, Ling;Salto-Tellez, Manuel;Moore, Philip K.
通讯作者:
Moore, Philip K.
影响因子:
7.3
作者:
Mok, YYP;Atan, MSBM;Moore, PK
通讯作者:
Moore, PK