The role of hydrogen sulfide signaling in macrophage activation.

The role of hydrogen sulfide signaling in macrophage activation. Immunology. 2020 Sep 02;: Authors: Sun F, Luo JH, Yue TT, Wang FX, Yang CL, Zhang S, Wang XQ, Wang CY Abstract Hydrogen sulfide (H2 S) is the latest identified small gaseous mediator enabled by its lipophilic nature to freely permeate the biological membranes. Initially, H2 S was recognized by its roles in neuronal activity and vascular relaxation, which makes it an important molecule involved in paracrine signaling pathways. Recently, the immune regulatory function of gasotransmitters, H2 S in particular, is increasingly being appreciated. Endogenous H2 S level has been linked to macrophage activation, polarization, and inflammasome formation. Mechanistically, H2 S-induced protein S-sulfhydration suppresses several inflammatory pathways including NF-κB and JNK signaling. Moreover, H2 S serves as a potent cellular redox regulator to modulate epigenetic alterations and to promote mitochondrial biogenesis in macrophages. Here in this review, we intend to summarize the recent advancements of H2 S studies in macrophages, and to discuss with focus on the therapeutic potential of H2 S donors by targeting macrophages. The feasibility of H2 S signaling component as a macrophage biomarker under disease conditions would be also discussed. PMID: 32876334 [PubMed - as supplied by publisher]
Source: Immunology - Category: Allergy & Immunology Authors: Tags: Immunology Source Type: research