Generation of functional endothelial cells with progenitor-like features from murine induced pluripotent stem cells

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• 作者：Neli Kachamakova-Trojanowska^a ; Witold Nowak^a ; Krzysztof Szade^a ; Jacek Stepniewski^a ; Karolina Bukowska-Strakova^a ; ^b ; Monika Zukowska^a ; Hevidar Taha^a ; Antonina Chmura-Skirlinska^c ; Michael Beilharz^a ; Jozef Dulak^a ; ^d ; ¹ ; ^{jozef.dulak@uj.edu.pl" class="auth_mail" title="E-mail the corresponding author} ; Alicja Jozkowicz^a ; ¹ ; ^{alicja.jozkowicz@uj.edu.pl" class="auth_mail" title="E-mail the corresponding author}
• 关键词：ECs ; endothelial cells ; iPSCs ; induced pluripotent stem cells ; MSCs ; mesenchymal stromal cells ; PSCs ; pluripotent stem cells ; SS ; shear stress ; VEGF ; vascular endothelial growth factor ; FGF4 ; fibroblast growth factor 4 ; IL ; interleukin ; KLF-2 ; Kruppel-like factor 2
• 刊名：Vascular Pharmacology
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：86
• 期：Complete
• 页码：94-108
• 全文大小：2455 K

文摘

Induced pluripotent stem cells (iPSCs) have shown great potential in regenerative medicine and research applications like disease modeling or drug discovery. Endothelium is indispensable for vascular homeostasis, whereas endothelial dysfunction could lead to different diseases. Therefore, generating autologous cells, able to restore the endothelial lining, can be crucial for slowing or reversing certain pathological processes. In the current study we show efficient differentiation of murine iPSCs into endothelial cells (ECs) with stable CD34 +/Tie-2 +/Sca-1 +/CD45 − phenotype and proven functionality. iPS-derived ECs (iPS-ECs) were positive for phospho-eNOS and von Willebrand factor, and responded to shear stress with up-regulation of KLF-2, KDR, HO-1, and increased nitric oxide and VEGF production. These cells reacted to cytokine stimulation through increase in VCAM-1 and inflammatory cytokine secretion. iPS-ECs showed also certain progenitor features, like expression of progenitor markers (CD34, Sca-1, c-kit) and high clonogenic potential. The angiogenic capacity of iPS-ECs in spheroid sprouting assay was similar to primary ECs, whereas on Matrigel, tube structures could be formed only in the presence of other support cells. Angiogenic potential of iPS-ECs in vivo, was similar to murine endothelial cell line MS-1. Summarizing, our approach enabled generation of functional progenitor-like ECs, which can be used as a research model.