The Serpin Superfamily and Their Role in the Regulation and Dysfunction of Serine Protease Activity in COPD and Other Chronic Lung Diseases
Overview
Chemistry
Molecular Biology
Authors
Affiliations
Chronic obstructive pulmonary disease (COPD) is a debilitating heterogeneous disease characterised by unregulated proteolytic destruction of lung tissue mediated via a protease-antiprotease imbalance. In COPD, the relationship between the neutrophil serine protease, neutrophil elastase, and its endogenous inhibitor, alpha-1-antitrypsin (AAT) is the best characterised. AAT belongs to a superfamily of serine protease inhibitors known as serpins. Advances in screening technologies have, however, resulted in many members of the serpin superfamily being identified as having differential expression across a multitude of chronic lung diseases compared to healthy individuals. Serpins exhibit a unique suicide-substrate mechanism of inhibition during which they undergo a dramatic conformational change to a more stable form. A limitation is that this also renders them susceptible to disease-causing mutations. Identification of the extent of their physiological/pathological role in the airways would allow further expansion of knowledge regarding the complexity of protease regulation in the lung and may provide wider opportunity for their use as therapeutics to aid the management of COPD and other chronic airways diseases.
Gaspa G, Cesarani A, Pauciullo A, Peana I, Macciotta N Animals (Basel). 2025; 14(24.
PMID: 39765489 PMC: 11672698. DOI: 10.3390/ani14243585.
Matrix-free human lung organoids derived from induced pluripotent stem cells to model lung injury.
Budeus B, Kroepel C, Stasch L, Klein D Stem Cell Res Ther. 2024; 15(1):468.
PMID: 39696649 PMC: 11657174. DOI: 10.1186/s13287-024-04106-3.
An organotypic atlas of human vascular cells.
Barnett S, Cujba A, Yang L, Maceiras A, Li S, Kedlian V Nat Med. 2024; 30(12):3468-3481.
PMID: 39566559 PMC: 11645277. DOI: 10.1038/s41591-024-03376-x.
Jin Y, Zhu K, Wu S, He S, Cao C Int J Chron Obstruct Pulmon Dis. 2024; 19:2273-2283.
PMID: 39416877 PMC: 11480642. DOI: 10.2147/COPD.S466563.
Sohail A, Waqas F, Braubach P, Czichon L, Samir M, Iqbal A Respir Res. 2024; 25(1):369.
PMID: 39395995 PMC: 11471021. DOI: 10.1186/s12931-024-02988-8.