Abstract |
Sepsis is an exacerbated inflammatory reaction induced by severe infection. As important defensive molecules in innate immunity, several AMPs are reported to prevent septic shock. In this study, we characterized a novel cathelicidin, FM-CATH, from the frog skin of F. multistriata. FM-CATH was found to adopt an amphipathic α-helix structural in membrane-mimetic environments and possess favorable antimicrobial effects against bacteria and fungus. In addition, it triggered the agglutination of bacteria. It could also strongly bind to LPS and LTA. Additionally, FM-CATH affected the enzymatic activities of thrombin, plasmin, β- tryptase, and tPA, leading to coagulation inhibition in vitro and in vivo. Finally, we observed that FM-CATH improved survival rate and inhibited pathological alteration, bacterial count, serum biochemistry, and pro-inflammatory cytokine expression in the cecal ligation and puncture-induced sepsis mice. Taken together, these findings suggest that FM-CATH might be served as a promising agent for the treatment of sepsis.
|
Authors | Jiena Wu, Haiyun Zhang, Xiaoxin Chen, Jinwei Chai, Yunrui Hu, Weichen Xiong, Wancheng Lu, Maolin Tian, Xin Chen, Xueqing Xu |
Journal | Frontiers in pharmacology
(Front Pharmacol)
Vol. 12
Pg. 731056
( 2021)
ISSN: 1663-9812 [Print] Switzerland |
PMID | 34483941
(Publication Type: Journal Article)
|
Copyright | Copyright © 2021 Wu, Zhang, Chen, Chai, Hu, Xiong, Lu, Tian, Chen and Xu. |