Atherogenic Cytokines Regulate VEGF-A-Induced Differentiation of Bone Marrow-Derived Mesenchymal Stem Cells into Endothelial Cells

Izuagie Attairu Ikhapoh, Christopher J. Pelham, Devendra K. Agrawal

Research output: Contribution to journalArticle

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Abstract

Coronary artery stenting or angioplasty procedures frequently result in long-term endothelial dysfunction or loss and complications including arterial thrombosis and myocardial infarction. Stem cell-based therapies have been proposed to support endothelial regeneration. Mesenchymal stem cells (MSCs) differentiate into endothelial cells (ECs) in the presence of VEGF-A in vitro. Application of VEGF-A and MSC-derived ECs at the interventional site is a complex clinical challenge. In this study, we examined the effect of atherogenic cytokines (IL-6, TNFα, and Ang II) on EC differentiation and function. MSCs (CD44+, CD73+, CD90+, CD14-, and CD45-) were isolated from the bone marrow of Yucatan microswine. Naïve MSCs cultured in differentiation media containing VEGF-A (50 ng/mL) demonstrated increased expression of EC-specific markers (vWF, PECAM-1, and VE-cadherin), VEGFR-2 and Sox18, and enhanced endothelial tube formation. IL-6 or TNFα caused a dose-dependent attenuation of EC marker expression in VEGF-A-stimulated MSCs. In contrast, Ang II enhanced EC marker expression in VEGF-A-stimulated MSCs. Addition of Ang II to VEGF-A and IL-6 or TNFα was sufficient to rescue the EC phenotype. Thus, Ang II promotes but IL-6 and TNFα inhibit VEGF-A-induced differentiation of MSCs into ECs. These findings have important clinical implications for therapies intended to increase cardiac vascularity and reendothelialize coronary arteries following intervention.

Original languageEnglish
Article number498328
JournalStem Cells International
Volume2015
DOIs
StatePublished - 2015

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Mesenchymal Stromal Cells
Vascular Endothelial Growth Factor A
Endothelial Cells
Bone Marrow
Cytokines
Interleukin-6
Coronary Vessels
CD31 Antigens
Vascular Endothelial Growth Factor Receptor-2
Cadherins
Cell- and Tissue-Based Therapy
Angioplasty
Regeneration
Cell Differentiation
Thrombosis
Stem Cells
Myocardial Infarction
Phenotype

All Science Journal Classification (ASJC) codes

  • Cell Biology
  • Molecular Biology

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Atherogenic Cytokines Regulate VEGF-A-Induced Differentiation of Bone Marrow-Derived Mesenchymal Stem Cells into Endothelial Cells. / Ikhapoh, Izuagie Attairu; Pelham, Christopher J.; Agrawal, Devendra K.

In: Stem Cells International, Vol. 2015, 498328, 2015.

Research output: Contribution to journalArticle

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