Effects of alpha 1-antitrypsin on endotoxin-induced lung inflammation in vivo
Previous in vitro experiments demonstrated that acute-phase protein, alpha 1-antitrypsin (AAT), could act either as an enhancer or as a suppressor of lipopolysaccharide (LPS)-induced cell activation depending on treatment time. Here we investigate how AAT regulates inflammatory responses in the short term when administrated post LPS challenge. Similar experimental setup was used both in vitro and