دورية أكاديمية
Enhanced neutrophil extracellular trap formation in COVID-19 is inhibited by the protein kinase C inhibitor ruboxistaurin
| العنوان: | Enhanced neutrophil extracellular trap formation in COVID-19 is inhibited by the protein kinase C inhibitor ruboxistaurin |
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| المؤلفون: | Rebecca Dowey, Joby Cole, A.A. Roger Thompson, Rebecca C. Hull, Chenghao Huang, Jacob Whatmore, Ahmed Iqbal, Kirsty L. Bradley, Joanne McKenzie, Allan Lawrie, Alison M. Condliffe, Endre Kiss-Toth, Ian Sabroe, Lynne R. Prince |
| المصدر: | ERJ Open Research, Vol 8, Iss 2 (2022) |
| بيانات النشر: | European Respiratory Society, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Medicine |
| مصطلحات موضوعية: | Medicine |
| الوصف: | Background Neutrophil extracellular traps (NETs) are web-like DNA and protein lattices which are expelled by neutrophils to trap and kill pathogens, but which cause significant damage to the host tissue. NETs have emerged as critical mediators of lung damage, inflammation and thrombosis in coronavirus disease 2019 (COVID-19) and other diseases, but there are no therapeutics to prevent or reduce NETs that are available to patients. Methods Neutrophils were isolated from healthy volunteers (n=9) and hospitalised patients with COVID-19 at the acute stage (n=39) and again at 3–4 months post-acute sampling (n=7). NETosis was measured by SYTOX green assays. Results Here, we show that neutrophils isolated from hospitalised patients with COVID-19 produce significantly more NETs in response to lipopolysaccharide (LPS) compared to cells from healthy control subjects. A subset of patients was captured at follow-up clinics (3–4 months post-acute sampling), and while LPS-induced NET formation is significantly lower at this time point, it remains elevated compared to healthy controls. LPS- and phorbol myristate acetate (PMA)-induced NETs were significantly inhibited by the protein kinase C (PKC) inhibitor ruboxistaurin. Ruboxistaurin-mediated inhibition of NETs in healthy neutrophils reduces NET-induced epithelial cell death. Conclusion Our findings suggest ruboxistaurin could reduce proinflammatory and tissue-damaging consequences of neutrophils during disease, and since it has completed phase III trials for other indications without safety concerns, it is a promising and novel therapeutic strategy for COVID-19. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2312-0541 23120541 |
| العلاقة: | http://openres.ersjournals.com/content/8/2/00596-2021.fullTest; https://doaj.org/toc/2312-0541Test |
| DOI: | 10.1183/23120541.00596-2021 |
| الوصول الحر: | https://doaj.org/article/939c2b6703794211b009663901e36f25Test |
| رقم الانضمام: | edsdoj.939c2b6703794211b009663901e36f25 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 23120541 |
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| DOI: | 10.1183/23120541.00596-2021 |