Protein kinases G are essential downstream mediators of the antifibrotic effects of sGC stimulators
Protein kinases G are essential downstream mediators of the antifibrotic effects of sGC stimulators
复制标题
蛋白激酶 G 是 sGC 刺激剂抗纤维化作用的重要下游介质
DOI:
10.1136/annrheumdis-2017-212489
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发表时间:
2018
影响因子:
27.4
通讯作者:
Distler JHW
中科院分区:
文献类型:
--
作者:
Matei AE;Beyer C;Györfi AH;Soare A;Chen CW;Dees C;Bergmann C;Ramming A;Friebe A;Hofmann F;Distler O;Schett G;Distler JHW
ObjectivesStimulators of soluble guanylate cyclase (sGC) are currently investigated in clinical trials for the treatment of fibrosis in systemic sclerosis (SSc). In this study, we aim to investigate the role of protein kinases G (PKG) as downstream mediators of sGC–cyclic guanosine monophosphate (cGMP) in SSc.MethodsMice with combined knockout of PKG1 and 2 were challenged with bleomycin and treated with the sGC stimulator BAY 41-2272. Fibroblasts were treated with BAY 41-2272 and with the PKG inhibitor KT 5823.ResultsPKG1 and 2 are upregulated in SSc in a transforming growth factor-β1 (TGFβ1)-dependent manner, as an attempt to compensate for the decreased signalling through the sGC–cGMP–PKG pathway. Inhibition or knockout of PKG1 and 2 abrogates the inhibitory effects of sGC stimulation on fibroblast activation in a SMAD-independent, but extracellular signal-regulated kinase (ERK)-dependent manner. In vivo, sGC stimulation fails to prevent bleomycin-induced fibrosis in PKG1 and 2 knockout mice.ConclusionsOur data provide evidence that PKGs are essential mediators of the antifibrotic effects of sGC stimulators through interfering with non-canonical TGFβ signalling. TGFβ1 promotes its profibrotic effects through inhibition of sGC–cGMP–PKG signalling, sGC stimulation exerts its antifibrotic effects by inhibition of TGFβ1-induced ERK phosphorylation.
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DOI:
10.1152/ajplung.00002.2012
发表时间:
2012-07-01
影响因子:
4.9
作者:
Chettimada, Sukrutha;Rawat, Dhwajbahadur K.;Gupte, Sachin A.
通讯作者:
Gupte, Sachin A.
影响因子:
27.4
作者:
Beyer, Christian;Reich, Nicole;Distler, Joerg H. W.
通讯作者:
Distler, Joerg H. W.
影响因子:
27.4
作者:
Dees, Clara;Beyer, Christian;Distler, Joerg H. W.
通讯作者:
Distler, Joerg H. W.
DOI:
--
发表时间:
2005
期刊:
American Journal of Physiology Renal Physiology 290
影响因子:
--
作者:
Satoh;J.-I.et al.;Wang Y.
通讯作者:
Wang Y.