Vitamin D improves endothelial barrier integrity and counteracts inflammatory effects on endothelial progenitor cells

Vitamin D improves endothelial barrier integrity and counteracts inflammatory effects on endothelial progenitor cells
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维生素 D 改善内皮屏障完整性并抵消内皮祖细胞的炎症影响

DOI:
10.1096/fj.201802750rr
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发表时间:
2019
期刊:
The FASEB Journal
影响因子:
--
通讯作者:
von Versen-Höynck F
von Versen-Höynck F
中科院分区:
--
文献类型:
--
作者:
Schröder-Heurich B;von Hardenberg S;Brodowski L;Kipke B;Meyer N;Borns K;von Kaisenberg CS;Brinkmann H;Claus P;von Versen-Höynck F

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内皮集落形成细胞(ECFC)是内皮祖细胞的增殖亚群,参与血管生成和内皮修复。在这项研究中,我们研究了ECFC的内皮屏障特征,维生素D是否支持细胞粘附和屏障完整性,以及它如何影响ECFC动员和肌动蛋白动力学。尽管ECFC屏障在炎症条件下被破坏,但维生素D治疗挽救了这种作用,导致ECFC单层的更高稳定性。此外,维生素D增强了ECFC向定向迁移的动员。此外,免疫细胞化学、定量真实的时间PCR和免疫印迹分析表明,维生素D通过血管内皮钙粘蛋白(VE-钙粘蛋白)连接以及通过cofilin和VE-钙粘蛋白磷酸化影响细胞动力学来增加内皮相互连接。我们的研究结果表明,维生素D治疗有效地抵消炎症的ECFC单层,导致更高的ECFC屏障的完整性。这项研究提供了维生素D对ECFC稳态的新的有益作用的证据。-Schröder-Heurich,B.,von哈登贝格,S.,布罗多夫斯基湖,Kipke,B.,Meyer,N.,伯恩斯,K.,von Kaisenberg,C.美国,Brinkmann,H.,Claus,P.,von Versen-Höynck,F.维生素D改善内皮屏障的完整性,并抵消炎症对内皮祖细胞的影响。FASEB J. 33,9142-9153(2019)。www.fasebj.org
Endothelial colony‐forming cells (ECFCs), a proliferative subpopulation of endothelial progenitor cells, are involved in angiogenesis and endothelial repair. In this study, we investigated endothelial barrier characteristics of ECFCs, whether vitamin D supports cell‐cell adhesion and barrier integrity, and how it affects ECFC mobilization and actin dynamics. Although ECFC barrier was disrupted under inflammatory conditions, this effect was rescued by vitamin D treatment, leading to higher stability of an ECFC monolayer. Furthermore, vitamin D enhanced ECFC mobilization toward directional migration. In addition, immunocytochemistry, quantitative real‐time PCR, and immunoblotting analysis showed that vitamin D increased endothelial interconnections through vascular endothelial Cadherin (VE‐cadherin) junctions and by impacting cell dynamics through cofilin and VE‐cadherin phosphorylation. Our results suggest that vitamin D treatment efficiently counteracts inflammation in an ECFC monolayer, resulting in higher ECFC barrier integrity. This study provides evidence of a new beneficial effect of vitamin D for ECFC homeostasis. —Schröder‐Heurich, B., von Hardenberg, S., Brodowski, L., Kipke, B., Meyer, N., Borns, K., von Kaisenberg, C. S., Brinkmann, H., Claus, P., von Versen‐Höynck, F. Vitamin D improves endothelial barrier integrity and counteracts inflammatory effects on endothelial progenitor cells. FASEB J. 33, 9142–9153 (2019). www.fasebj.org
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