Treating acute lung injury through scavenging of cell-free DNA by cationic nanoparticles

Autor: Ziyan Huang, Cong Wei, Hanbin Xie, Xue Xiao, Tienan Wang, Yihan Zhang, Yongming Chen, Ziqing Hei, Tianyu Zhao, Weifeng Yao
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Materials Today Bio, Vol 29, Iss , Pp 101360- (2024)
Druh dokumentu: article
ISSN: 2590-0064
DOI: 10.1016/j.mtbio.2024.101360
Popis: Acute lung injury (ALI) and acute respiratory distress syndrome are life-threatening conditions induced by inflammatory responses, in which cell-free DNA (cfDNA) plays a pivotal role. This study investigated the therapeutic potential of biodegradable cationic nanoparticles (cNPs) in alleviating ALI. Using a mouse model of lipopolysaccharide-induced ALI, we examined the impact of intravenously administered cNPs. Our findings indicate that cNPs possess robust DNA binding capability, enhanced accumulation in inflamed lungs, and a favorable safety profile in vivo. Furthermore, cNPs attenuate the inflammatory response in LPS-induced ALI mice by scavenging cfDNA, mainly derived from neutrophil extracellular traps, and activating the macrophage-mediated cGAS-STING pathway. The findings suggest a potential treatment for ALI by targeting cfDNA with cNPs. This approach has demonstrated efficacy in mitigating lung injury and merits further exploration.
Databáze: Directory of Open Access Journals