Article ; Online: Alpha-1-antitrypsin: A possible host protective factor against Covid-19.
2020 Volume 31, Issue 2, Page(s) e2157
Abstract: Understanding Covid-19 pathophysiology is crucial for a better understanding of the disease and development of more effective treatments. Alpha-1-antitrypsin (A1AT) is a constitutive tissue protector with antiviral and anti-inflammatory properties. A1AT ... ...
| Abstract | Understanding Covid-19 pathophysiology is crucial for a better understanding of the disease and development of more effective treatments. Alpha-1-antitrypsin (A1AT) is a constitutive tissue protector with antiviral and anti-inflammatory properties. A1AT inhibits SARS-CoV-2 infection and two of the most important proteases in the pathophysiology of Covid-19: the transmembrane serine protease 2 (TMPRSS2) and the disintegrin and metalloproteinase 17 (ADAM17). It also inhibits the activity of inflammatory molecules, such as IL-8, TNF-α, and neutrophil elastase (NE). TMPRSS2 is essential for SARS-CoV-2-S protein priming and viral infection. ADAM17 mediates ACE2, IL-6R, and TNF-α shedding. ACE2 is the SARS-CoV-2 entry receptor and a key component for the balance of the renin-angiotensin system, inflammation, vascular permeability, and pulmonary homeostasis. In addition, clinical findings indicate that A1AT levels might be important in defining Covid-19 outcomes, potentially partially explaining associations with air pollution and with diabetes. In this review, we focused on the interplay between A1AT with TMPRSS2, ADAM17 and immune molecules, and the role of A1AT in the pathophysiology of Covid-19, opening new avenues for investigating effective treatments. |
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| MeSH term(s) | ADAM17 Protein/metabolism ; Animals ; COVID-19/metabolism ; Humans ; Protective Factors ; Serine Endopeptidases/metabolism ; alpha 1-Antitrypsin/metabolism |
| Chemical Substances | alpha 1-Antitrypsin ; Serine Endopeptidases (EC 3.4.21.-) ; ADAM17 Protein (EC 3.4.24.86) |
| Keywords | covid19 |
| Language | English |
| Publishing date | 2020-08-26 |
| Publishing country | England |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Review |
| ZDB-ID | 1086043-5 |
| ISSN | 1099-1654 ; 1052-9276 |
| ISSN (online) | 1099-1654 |
| ISSN | 1052-9276 |
| DOI | 10.1002/rmv.2157 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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