Title: Nanotechnology as a basis for the vascular treatment of atherosclerosis

Authors: Mark Slevin, Lina Badimon, Marta Grau-Olivares, Mark Morrison, Jerzy Krupinski

Addresses: School of Biology, Chemistry and Health Science, Manchester Metropolitan University, Manchester M1 5GD, UK; Centro de Investigacion Cardiovascular, CSIC-ICCC, Hospital de la Santa Creu i Sant Pau, Barcelona 08025, Spain. ' Centro de Investigacion Cardiovascular, CSIC-ICCC, Hospital de la Santa Creu i Sant Pau, IIB-SantPau, Barcelona 08025, Spain. ' Cerebrovascular Division, Department of Neurology, Hospital Universitari del Sagrat Cor, Barcelona, Spain. ' Institute of Nanotechnology, Graham Hills Building, 50 Richmond Street, Glasgow, G1 1XP, UK. ' Department of Neurology, Stroke Unit, University Hospital of Bellvitge (HUB), Fundacio IDIBELL, Barcelona, Spain

Abstract: It is now accepted that during the early stages of development of coronary and carotid atherosclerotic plaques, activation of vasa vasorum (VV) at specific sites in the adventitia initiates their proliferation or |angiogenesis|, and migration through the media into the intima of unstable developing lesions. Plaques regions containing these immature vessels tend to exhibit increased inflammation and haemorrhage due to the structural deficiencies of the microvessels. Potential therapeutic agents could be designed to target and prevent activation of VV at specific susceptible sites of the adventitia in order to slow down or prevent development of unstable plaques. Secondary therapies may involve stabilisation or |maturation| of existing plaque microvessels in more advanced already symptomatic patients. This review will investigate the possibility of future design of nano-targeting devices, which home to the endothelial cells of VV or are delivered to the sites of existing plaques and which can deliver specific anti-angiogenic genes or those which will encourage development of mature functional and patent microvessels with a view to prevention and/or treatment of this disease.

Keywords: nanoparticles; angiogenesis; vasa vasorum; intimal neovessels; cardiovascular disease; magnetic resonance imaging; MRI; unstable plaques; atherosclerosis; nanotechnology; vascular treatment; carotid atherosclerotic plaques; coronary atherosclerotic plaques; endothelial cells.

DOI: 10.1504/IJNT.2011.041434

International Journal of Nanotechnology, 2011 Vol.8 No.8/9, pp.618 - 630

Published online: 22 Jul 2011 *

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