Journal Article

S-Propargyl-Cysteine, a Novel Hydrogen Sulfide Donor, Inhibits Inflammatory Hepcidin and Relieves Anemia of Inflammation by Inhibiting IL-6/STAT3 Pathway

Xin, Hong, Wang, Minjun, Tang, Wenbo, Zhu, Yi Zhun

2016

Overview

Anemia of inflammation (AI) is clinically prevalent and greatly threatens public health. Traditional remedies have raised controversy during clinical practice, calling for alternative therapies. We have recently found that hydrogen sulfide (H2S) inhibits inflammatory hepcidin, the critical mediator of AI. However, due to the chemical property of H2S, there remains an urgent need for a stable H2S donor in AI treatment. Here we reported that S-propargyl-cysteine (SPRC), a novel water-soluble H2S donor, suppressed hepatic hepcidin and corrected hypoferremia induced by lipopolysaccharide. The effects of SPRC were reversed by inhibition of cystathionine γ-lyase, one of the major endogenous H2S synthases. Moreover, SPRC reduced serum hepcidin, improved transferrin saturation, and maintained erythrocyte membrane integrity in a chronic mouse AI model. Consistently, splenomegaly was ameliorated and splenic iron accumulation relieved. Mechanism study indicated that serum IL-6 content and hepatic Il-6 mRNA were decreased by SPRC, in parallel with reduced hepatic JAK2/STAT3 activation. On the whole, our data reveal the inhibition of inflammatory hepcidin by SPRC, and suggest SPRC as a potential remedy against AI.

• Publisher: Public Library of Science,Public Library of Science (PLoS)
• Subject: Anemia / Anemia - drug therapy / Anemia - metabolism / Animal cognition / Animals / Biology and Life Sciences / Cancer / Chemical properties / Chronic illnesses / Cognitive ability / Cysteine / Cysteine - analogs & derivatives / Cysteine - pharmacology / Cysteine - therapeutic use / Cystine / Disease Models, Animal / Erythrocytes / Health risks / Hepcidin / Hepcidins - metabolism / Hydrogen / Hydrogen ion concentration / Hydrogen sulfide / Hydrogen Sulfide - metabolism / Hypoxia / Inflammation / Inflammation - chemically induced / Inflammation - drug therapy / Inflammation - metabolism / Inhibition / Interleukin 6 / Interleukin-6 - metabolism / Iron / Ischemia / Janus kinase 2 / Laboratories / Lipopolysaccharides / Male / Medicine and Health Sciences / Mice / Mice, Inbred C57BL / Mitogens / Mortality / mRNA / Pharmacology / Pharmacy / Public health / Red blood cells / Research and analysis methods / RNA / Rodents / Signal Transduction - drug effects / Spleen / Splenomegaly / Stat3 protein / STAT3 Transcription Factor - metabolism / Thiols / Transferrin / Transferrins