Magnetically Targeted Endothelial Cell Localization in Stented Vessels

124Citations
Citations of this article
50Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Objectives: A novel method to magnetically localize endothelial cells at the site of a stented vessel wall was developed. The application of this strategy in a large animal model is described. Background: Local delivery of blood-derived endothelial cells has been shown to facilitate vascular healing in animal models. Therapeutic utilization has been limited by an inability to retain cells in the presence of blood flow. We hypothesized that a magnetized stent would facilitate local retention of superparamagnetically labeled cells. Methods: Cultured porcine endothelial cells were labeled with endocytosed superparamagnetic iron oxide microspheres. A 500:1 microsphere-to-cell ratio was selected for in vivo experiments based on bromo-deoxyuridine incorporation and terminal deoxynucleotidyl transferase mediated dUTP nick end labeling assays. Stents were magnetized and implanted in porcine coronary and femoral arteries using standard interventional equipment. Labeled endothelial cells were delivered locally during transient occlusion of blood flow. Results: The delivered cells were found attached to the stent struts and were also distributed within the adjacent denuded vessel wall at 24 h. Conclusions: Magnetic forces can be used to rapidly place endothelial cells at the site of a magnetized intravascular stent. The delivered cells are retained in the presence of blood flow and also spread to the adjacent injured vessel wall. Potential applications include delivering a cell-based therapeutic effect to the local vessel wall as well as downstream tissue. © 2006 American College of Cardiology Foundation.

Cite

CITATION STYLE

APA

Pislaru, S. V., Harbuzariu, A., Gulati, R., Witt, T., Sandhu, N. P., Simari, R. D., & Sandhu, G. S. (2006). Magnetically Targeted Endothelial Cell Localization in Stented Vessels. Journal of the American College of Cardiology, 48(9), 1839–1845. https://doi.org/10.1016/j.jacc.2006.06.069

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free