Volume 102, Issue 8 pp. 1730-1739
Original Research Report

Microenvironment influences vascular differentiation of murine cardiovascular progenitor cells

Jessica M. Gluck

Jessica M. Gluck

Department of Surgery, Cardiovascular Tissue Engineering Laboratory, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California

Department of Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California

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Connor Delman

Connor Delman

Department of Surgery, Cardiovascular Tissue Engineering Laboratory, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California

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Jennifer Chyu

Jennifer Chyu

Department of Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California

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W. Robb MacLellan

W. Robb MacLellan

Department of Medicine, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California

Division of Cardiology, School of Medicine, University of Washington, Seattle, Washington

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Richard J. Shemin

Richard J. Shemin

Department of Surgery, Cardiovascular Tissue Engineering Laboratory, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California

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Sepideh Heydarkhan-Hagvall

Corresponding Author

Sepideh Heydarkhan-Hagvall

Department of Surgery, Cardiovascular Tissue Engineering Laboratory, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California

AstraZeneca R&D Mölndal, Cardiovascular and Metabolic Diseases iMed, Mölndal, Sweden

Correspondence to: S. Heydarkhan-Hagvall ([email protected])Search for more papers by this author
First published: 31 March 2014
Citations: 6

Abstract

We examined the effects of the microenvironment on vascular differentiation of murine cardiovascular progenitor cells (CPCs). We isolated CPCs and seeded them in culture exposed to the various extracellular matrix (ECM) proteins in both two-dimensional (2D) and 3D culture systems. To better understand the contribution of the microenvironment to vascular differentiation, we analyzed endothelial and smooth muscle cell differentiation at both day 7 and day 14. We found that laminin and vitronectin enhanced vascular endothelial cell differentiation while fibronectin enhanced vascular smooth muscle cell differentiation. We also observed that the effects of the 3D electrospun scaffolds were delayed and not noticeable until the later time point (day 14), which may be due to the amount of time necessary for the cells to migrate to the interior of the scaffold. The study characterized the contributions of both ECM proteins and the addition of a 3D culture system to continued vascular differentiation. Additionally, we demonstrated the capability bioengineer a CPC-derived vascular graft. © 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 102B: 1730–1739, 2014.

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