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Gasotransmitters | Diseases | Mechanisms | References |
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NO | SNAP | Liver fibrosis | SNAP can eliminate the generation of ROS, inhibit the activation and proliferation of HSC, and inhibit the generation of fibrosis. | [66] |
Renal fibrosis | SNAP can amplify the expression of TIMP-1 in a TGF-β-dependent manner and reduce fibrosis. | [71] |
Peyronie’s disease | SNAP can inhibit fibrosis by inhibiting the production of ROS, decreasing the expression of collagen 1, and reducing the abundance of myofibroblasts. | [91] |
eNOS | Liver fibrosis | eNOS can reduce fibrosis by promoting HSC apoptosis and ROS-mediated mitochondrial membrane depolarization to inhibit HSC activation. | [77–79] |
L-arginine | Renal fibrosis | L-arginine can be mediated through a variety of pathways, including inhibiting the expression of TGF-β to reduce fibrosis. | [73] |
CINOD | Idiopathic pulmonary fibrosis | CINOD can inhibit the expression of COX1 and COX2, showing anti-inflammatory and antioxidant effects to resist fibrosis. | [75] |
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CO | CORM3 | Activation of mouse embryonic fibroblasts | 1 mM CORM3 can reduce the production of collagen I and III and interact with plasma fibronectin to prevent fibrosis. | [96] |
CO-HbV | Idiopathic pulmonary fibrosis | CO-HbV reduces the production of ROS by inhibiting the NOX4 signaling and attenuating the TGF-β signaling pathway. | [98] |
CO gas | Idiopathic pulmonary fibrosis | Exogenous 250 ppm CO gas inhibits the synthesis of deposition of ECM and interferes with the proliferation of fibroblasts through the regulation of Id1 expression. | [97] |
Renal fibrosis | 250 ppm CO can ameliorate UUO-induced renal fibrosis and protect against kidney injury. | [100] |
Myocardial fibrosis | 250 ppm CO can play an antifibrosis effect by inhibiting the TGF-β signaling and stimulating autophagy. | [103, 104] |
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H2S | NaHS | Idiopathic pulmonary fibrosis | NaHS can reduce the deposition of collagen and reduce pulmonary fibrosis. | [113] |
Renal fibrosis | NaHS can significantly reduce fibrosis through phosphorylation of the NF-κB and IL-4/STAT6 signaling pathway and inactivation of NLRP3 and its downstream signaling pathways, inhibiting the infiltration of M1 and M2 macrophages and downregulating fibrogenic genes. | [118] |
Renal fibrosis | NaHS can accelerate the proliferation of renal tubular cells and delay renal fibrosis by reducing oxidative stress and inflammation. | [119] |
Renal fibrosis | NaHS can prevent the formation of fibrosis by reducing the expression of TGF-β. | [120] |
Renal fibrosis | NaHS can inhibit the ERK- and β-catenin-dependent signaling pathways to improve renal fibrosis. | [121] |
Myocardial fibrosis | The chronic aerobic exercise or NaHS administration can downregulate myocardial hydroxyproline level and fibrotic area. | [125] |
Myocardial fibrosis | NaHS can reduce the content of Nox2/4, the phosphorylation of ERK1/2, and ROS, thereby reducing the myocardial fibrosis mediated by oxidative stress. | [115, 122] |
Myocardial fibrosis | NaHS inhibits the accumulation of extracellular matrix and increases blood vessel density to reduce myocardial fibrosis. | [124] |
Liver fibrosis | NaHS can elevate serum H2S level, decrease hyaluronic acid, and reduce the number of activated HSCs. | [131–133] |
Diabetic diaphragm fibrosis | NaHS can inhibit the inflammatory response mediated by NLRP3 inflammasome and reduce collagen deposition. | [137] |
GYY4137 | Myocardial fibrosis | GYY4137 exerts antifibrosis and cardioprotective effects by enhancing the activation of endogenous natriuretic peptides after early ischemia. | [123, 126] |
SAC | Liver fibrosis | SAC can reduce liver fibrosis through its antioxidant and anti-inflammatory properties, as well as inhibiting the STAT3/SMAD3 signaling pathway. | [127] |
H2S | Idiopathic pulmonary fibrosis | H2S can inhibit the expression of NF-κB p65 and downregulate Th2 cells to reduce fibrosis. | [135] |
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