Cited by 602Atherosclerosis and Cardiovascular DiseasesCerebrovascular and Carotid Artery DiseasesCardiac Imaging and Diagnostics

Noninvasive Vascular Cell Adhesion Molecule-1 Imaging Identifies Inflammatory Activation of Cells in Atherosclerosis

Nahrendorf, Matthias, Jaffer, Farouc A., Kelly, Kimberly A., Sosnovik, David E., Aikawa, Elena, Libby, Peter, Weissleder, Ralph·2006·Circulation

Abstract

Background— Noninvasive imaging of adhesion molecules such as vascular cell adhesion molecule-1 (VCAM-1) may identify early stages of inflammation in atherosclerosis. We hypothesized that a novel, second-generation VCAM-1–targeted agent with enhanced affinity had sufficient sensitivity to enable real-time detection of VCAM-1 expression in experimental atherosclerosis in vivo, to quantify pharmacotherapy-induced reductions in VCAM-1 expression, and to identify activated cells in human plaques. Methods and Results— In vivo phage display in apolipoprotein E–deficient mice identified a linear peptide affinity ligand, VHPKQHR, homologous to very late antigen-4, a known ligand for VCAM-1. This peptide was developed into a multivalent agent detectable by MRI and optical imaging (denoted VINP-28 for VCAM-1 internalizing nanoparticle 28, with 20 times higher affinity than previously reported for VNP). In vitro, VINP-28 targeted all cell types expressing VCAM-1. In vivo, MRI and optical imaging in apolipoprotein E–deficient mice (n=28) after injection with VINP-28 or saline revealed signal enhancement in the aortic root of mice receiving VINP-28 ( P <0.05). VINP-28 colocalized with endothelial cells and other VCAM-1–expressing cells, eg, macrophages, and was spatially distinct compared with untargeted control nanoparticles. Atheromata of atorvastatin-treated mice showed reduced VINP-28 deposition and VCAM-1 expression. VINP-28 enhanced early lesions in juvenile mice and resected human carotid artery plaques. Conclusions— VINP-28 allows noninvasive imaging of VCAM-1–expressing endothelial cells and macrophages in atherosclerosis and spatial monitoring of anti–VCAM-1 pharmacotherapy in vivo and identifies inflammatory cells in human atheromata. This clinically translatable agent could noninvasively detect inflammation in early, subclinical atherosclerosis.

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  1. Shen T, Weissleder R, Papisov M, Bogdanov A Jr, Brady TJ. Mono- crystalline iron oxide nanocompounds (MION): physicochemical prop- erties. Magn Reson Med. 1993;29:599 -604.
  2. Maurer CA, Friess H, Kretschmann B, Wildi S, Muller C, Graber H, Schilling M, Buchler MW. Over-expression of ICAM-1, VCAM-1 and ELAM-1 might influence tumor progression in colorectal cancer. Int J Cancer. 1998;79:76 -81.

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Authors
Nahrendorf, M., Jaffer, F. A., Kelly, K. A., Sosnovik, D. E., Aikawa, E., Libby, P., & Weissleder, R.
Affiliations
Brigham and Women's Hospital (US)
Venue
Circulation
Published
2006-10-03
Volume
114
Issue
14
Pages
1504-1511
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2101037111
Cited by
602
References
42
Citations by year
2026: 7 · 2025: 9 · 2024: 10 · 2023: 12 · 2022: 22 · 2021: 19 · 2020: 17 · 2019: 30 · 2018: 20 · 2017: 22 · 2016: 27 · 2015: 33 · 2014: 51 · 2013: 43 · 2012: 51
FWCI
17.03
Type
journal article
Language
en
Open access
closed
Locations
  • Circulation (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Centre d'Imagerie BioMédicale
  • Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital
  • National Heart, Lung, and Blood Institute (R01-HL36436, U01HL080731, R01HL078641)
  • National Institute of Allergy and Infectious Diseases (P01AI054904)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cerebrovascular and Carotid Artery Diseases
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Cardiac Imaging and Diagnostics
Keywords
VCAM-1, atherosclerosis, inflammation, macrophages, endothelial cells, very late antigen-4, ApoE-deficient mice, atorvastatin, carotid plaque, magnetic resonance imaging, optical imaging, subclinical atherosclerosis
MeSH terms
Amino Acid Sequence, Animals, Apolipoproteins E, Diagnostic Imaging, Gene Expression Regulation, Inflammation, Ligands, Magnetic Resonance Imaging, Peptides, Down-Regulation, Drug Monitoring, Mice, Knockout, Vascular Cell Adhesion Molecule-1, Atherosclerosis, Mice

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