Academic Journal
Activation of endothelial pro-resolving anti-inflammatory pathways by circulating microvesicles from non-muscular myosin light chain kinase-deficient mice
| العنوان: | Activation of endothelial pro-resolving anti-inflammatory pathways by circulating microvesicles from non-muscular myosin light chain kinase-deficient mice |
|---|---|
| المؤلفون: | Abderahim Gaceb, Luisa Vergori, M Carmen Martínez, Ramaroson Andriantsitoaina |
| المصدر: | Frontiers in Pharmacology, Vol 7 (2016) |
| بيانات النشر: | Frontiers Media S.A., 2016. |
| سنة النشر: | 2016 |
| المجموعة: | LCC:Therapeutics. Pharmacology |
| مصطلحات موضوعية: | Endothelial Cells, lipopolysaccharide, extracellular vesicles, Secretome, nmMLCK, Therapeutics. Pharmacology, RM1-950 |
| الوصف: | Microvesicles, small membrane vesicles released from cells, have beneficial and/or deleterious effects in sepsis. We previously reported that non-muscle myosin light chain kinase (nmMLCK) deletion protects mice against endotoxic shock by reducing inflammation. Here, we have evaluated the consequences of nmMLCK deletion on microvesicles phenotypes and their effects on mouse aortic endothelial cells in association with vascular inflammation and endothelial dysfunction during endotoxic shock induced by lipopolysaccharide in mice. Treatment with lipopolysaccharide induced an increase in levels of circulating microvesicles in wild type but not in nmMLCK-deficient mice. Microvesicles from nmMLCK-deficient mice (MVsnmMLCK-/-) prevented the inflammatory effects of lipopolysaccharide with concomitant increase of anti- inflammatory and reduction of pro-inflammatory secretome in mouse aortic endothelial cells. In addition, MVsnmMLCK-/- reduced the efficacy of lipopolysaccharide to increase aortic oxidative and nitrosative stresses as well as macrophage infiltration in the aorta. Moreover, MVsnmMLCK-/- prevented ex vivo endothelial dysfunction, vascular hyporeactivity and in vivo overproduction of nitric oxide in heart and liver in response to lipopolysaccharide. Altogether, these findings provide evidence that nmMLCK deletion generates circulating microvesicles displaying protective effects by activating endothelial pro-resolving anti-inflammatory pathways allowing the effective down-regulation of oxidative and nitrative stresses associated with endotoxic shock. Thus, nmMLCK plays a pivotal role in susceptibility to sepsis via the control of cellular activation and release of circulating microvesicles. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1663-9812 |
| Relation: | http://journal.frontiersin.org/Journal/10.3389/fphar.2016.00322/full; https://doaj.org/toc/1663-9812 |
| DOI: | 10.3389/fphar.2016.00322 |
| URL الوصول: | https://doaj.org/article/7f826f1cd4e447f6bda1ead408a52a72 |
| رقم الانضمام: | edsdoj.7f826f1cd4e447f6bda1ead408a52a72 |
| قاعدة البيانات: | Directory of Open Access Journals |
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