Cited by 379Nanoparticle-Based Drug DeliveryAtherosclerosis and Cardiovascular DiseasesCardiac Imaging and Diagnostics

Endothelial α ν β 3 Integrin–Targeted Fumagillin Nanoparticles Inhibit Angiogenesis in Atherosclerosis

Abstract

Objective— Angiogenic expansion of the vasa vasorum is a well-known feature of progressive atherosclerosis, suggesting that antiangiogenic therapies may stabilize or regress plaques. α ν β 3 Integrin–targeted paramagnetic nanoparticles were prepared for noninvasive assessment of angiogenesis in early atherosclerosis, for site-specific delivery of antiangiogenic drug, and for quantitative follow-up of response. Methods and Results— Expression of α ν β 3 integrin by vasa vasorum was imaged at 1.5 T in cholesterol-fed rabbit aortas using integrin-targeted paramagnetic nanoparticles that incorporated fumagillin at 0 μg/kg or 30 μg/kg. Both formulations produced similar MRI signal enhancement (16.7%±1.1%) when integrated across all aortic slices from the renal arteries to the diaphragm. Seven days after this single treatment, integrin-targeted paramagnetic nanoparticles were readministered and showed decreased MRI enhancement among fumagillin-treated rabbits (2.9%±1.6%) but not in untreated rabbits (18.1%±2.1%). In a third group of rabbits, nontargeted fumagillin nanoparticles did not alter vascular α ν β 3 -integrin expression (12.4%±0.9%; P >0.05) versus the no-drug control. In a second study focused on microscopic changes, fewer microvessels in the fumagillin-treated rabbit aorta were counted compared with control rabbits. Conclusions— This study illustrates the potential of combined molecular imaging and drug delivery with targeted nanoparticles to noninvasively define atherosclerotic burden, to deliver effective targeted drug at a fraction of previous levels, and to quantify local response to treatment.

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Crossref · 10.1161/01.atv.0000235724.11299.76

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31 of 31 references verified0 citation errors · 0 not checkable

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  • A single injection of αVβ3 integrin-targeted paramagnetic nanoparticles delivering fumagillin inhibits angiogenesis in a rabbit model.

    “A team led by Wickline and Lanza107 has shown that a single injection of αVβ3 integrin-targeted paramagnetic nanoparticles for site-specific delivery of the anti-angiogenic drug fumagillin is enough to inhibit angiogenesis in a rabbit model.”
  • These nanoparticles decreased the burden of aortic angiogenesis for 3 weeks after treatment.

    “In a follow-up study the same group demonstrated that these nanoparticles decreased the burden of aortic angiogenesis for 3 weeks after treatment”
  • The effect of these nanoparticles on aortic angiogenesis was prolonged when combined with oral atorvastatin.

    “and that this effect was prolonged when applied in combination with oral atorvastatin (Lipitor; Pfizer) administration.”
  • αVβ3 integrin-specific MRI represents a potential strategy for an anti-angiogenic therapeutic regimen.

    “This was determined using αVβ3 integrin-specific MRI, thus representing a potential strategy for an anti-angiogenic therapeutic regimen107,108 (FIG. 3c).”
  • Combined molecular imaging and drug delivery with targeted nanoparticles has therapeutic potential in a rabbit model of atherosclerosis.

    “This was the first study to show the therapeutic potential of combined molecular imaging and drug delivery with targeted nanoparticles in a rabbit model of atherosclerosis.”

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Authors
Winter, P. M., Neubauer, A. M., Caruthers, S. D., Harris, T. D., Robertson, J. D., Williams, T. A., Schmieder, A. H., Hu, G., Allen, J. S., Lacy, E. K., Zhang, H., Wickline, S. A., & Lanza, G. M.
Affiliations
Washington University in St. Louis (US)
Venue
Arteriosclerosis, Thrombosis, and Vascular Biology
Published
2006-09
Volume
26
Issue
9
Pages
2103-2109
ISSN
  • 1079-5642 (ISSN-L)
  • 1524-4636
OpenAlex
W2112285684
Cited by
379
References
31
Citations by year
2026: 3 · 2025: 3 · 2024: 5 · 2023: 7 · 2022: 15 · 2021: 16 · 2020: 13 · 2019: 17 · 2018: 14 · 2017: 23 · 2016: 12 · 2015: 22 · 2014: 29 · 2013: 17 · 2012: 37
FWCI
13.04
Type
journal article
Language
en
Open access
closed
Locations
  • Arteriosclerosis Thrombosis and Vascular Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL073646, HL-73646, R01HL078631, HL 78631)
  • National Cancer Institute (N01 CO 37007)
  • National Institute of Biomedical Imaging and Bioengineering (R01EB001704, EB-01704)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Cardiac Imaging and Diagnostics
Keywords
alpha v beta 3 integrin, fumagillin, targeted nanoparticles, angiogenesis inhibition, atherosclerosis, vasa vasorum, paramagnetic nanoparticles, magnetic resonance imaging, molecular imaging, targeted drug delivery, atherosclerotic plaque, rabbit aorta
MeSH terms
Animals, Aorta, Abdominal, Cyclohexanes, Endothelium, Vascular, Fatty Acids, Unsaturated, Hyperlipidemias, Magnetic Resonance Imaging, Neovascularization, Pathologic, Rabbits, Sesquiterpenes, Drug Delivery Systems, Angiogenesis Inhibitors, Integrin alphaVbeta3, Nanostructures, Atherosclerosis

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