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English Abstract
Journal Article
[Serpins as important protective factors in the pathogenesis of acute lung injury/acute respiratory distress syndrome].
Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2021 March
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a common respiratory disease in clinic, and with a pathological manifestation of pulmonary edema, decreased pulmonary compliance as well as pulmonary epithelial/endothelial cells injury. At present, it was suggested that systemic inflammatory response syndrome (SIRS) caused by various causes which play an important role in the occurrence and development of ALI/ARDS. Widely activated neutrophils can migrate to lung tissue and release plenty of proteases in the procedure of SIRS, including neutrophil serine proteases (NSPs), lysozyme, myeloperoxidase and collagenase, which can induce severe lung injury. Meanwhile, NSPs, such as neutrophil elastase (NE), cathepsin G (CG), proteinase 3 (PR3) and neutrophil serine proteinase 4 (NSP4), are important in the pathogenesis of ALI/ARDS. Therefore, Serpins may protect lung tissue by inhibiting NSPs. However, the specific mechanism of Serpins is not totally clear. In this article, we will discuss the mechanism of action of NSPs in the inflammatory response of ALI/ARDS, the structural overview of Serpins, the primary role of Serpins in ALI/ARDS, such as the inhibition of NSPs activity, other roles of Serpins in ALI/ARDS, such as the inhibition of inflammatory factor release, regulation of apoptosis and protection of vascular endothelial cells and pulmonary surfactant-associated glycoprotein D (SP-D), and the clinical application of exogenous Serpins in ALI/ARDS to explore the role of Serpins in the pathogenesis of ALI/ARDS. The aim is to provide new ideas and strategies for the clinical treatment of ALI/ARDS.
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