KLF2-dependent, Shear Stress-induced Expression of CD59
Journal of Biological Chemistry, ISSN: 0021-9258, Vol: 283, Issue: 21, Page: 14636-14644
2008
- 48Citations
- 42Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Metrics Details
- Citations48
- Citation Indexes48
- CrossRef48
- 46
- Captures42
- Readers42
- 38
Article Description
Complement activation may predispose to vascular injury and atherogenesis. The atheroprotective actions of unidirectional laminar shear stress led us to explore its influence on endothelial cell expression of complement inhibitory proteins CD59 and decay-accelerating factor. Human umbilical vein and aortic endothelial cells were exposed to laminar shear stress (12 dynes/cm 2 ) or disturbed flow (±5 dynes/cm 2 at 1Hz) in a parallel plate flow chamber. Laminar shear induced a flow rate-dependent increase in steady-state CD59 mRNA, reaching 4-fold at 12 dynes/cm 2. Following 24–48 h of laminar shear stress, cell surface expression of CD59 was up-regulated by 100%, whereas decay-accelerating factor expression was unchanged. The increase in CD59 following laminar shear was functionally significant, reducing C9 deposition and complement-mediated lysis of flow-conditioned endothelial cells by 50%. Although CD59 induction was independent of PI3-K, ERK1/2 and nitric oxide, an RNA interference approach demonstrated dependence upon an ERK5/KLF2 signaling pathway. In contrast to laminar shear stress, disturbed flow failed to induce endothelial cell CD59 protein expression. Likewise, CD59 expression on vascular endothelium was significantly higher in atheroresistant regions of the murine aorta exposed to unidirectional laminar shear stress, when compared with atheroprone areas exposed to disturbed flow. We propose that up-regulation of CD59 via ERK5/KLF2 activation leads to endothelial resistance to complement-mediated injury and protects from atherogenesis in regions of laminar shear stress.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0021925820543329; http://dx.doi.org/10.1074/jbc.m800362200; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=47249112564&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/18362151; http://www.jbc.org/lookup/doi/10.1074/jbc.M800362200; https://syndication.highwire.org/content/doi/10.1074/jbc.M800362200; https://linkinghub.elsevier.com/retrieve/pii/S0021925820543329; https://dx.doi.org/10.1074/jbc.m800362200
American Society for Biochemistry & Molecular Biology (ASBMB)
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