Targeting PCSK9 reduces PM2.5-induced lung inflammation and M1 macrophage polarization

Exposure to PM2.5 significantly increased PCSK9 expression by 4.7-fold and boosted M1 macrophage polarization. Genetic knockdown of PCSK9 notably reduced this M1 polarization and suppressed inflammatory cytokine secretion.

Researchers investigated PCSK9's role in PM2.5-induced lung injury using both in vitro alveolar macrophages and in vivo mouse models. They employed genetic knockdown and pharmacological inhibition to assess PCSK9 function.

The abstract focuses on scientific findings regarding PCSK9's role in PM2.5-induced lung injury; it does not provide personal how-to steps.

This study utilized both in vitro models with MH-S alveolar macrophage cell lines and in vivo mouse models, including subacute (56-day) and chronic fibrosis (112-day) exposure systems. The research aimed to understand the molecular mechanisms of PM2.5-induced lung injury.