Evidence map›Paper›PMID 21872249›Full record

ArticleAtherosclerosis2011

Molecular imaging with optical coherence tomography using ligand-conjugated microparticles that detect activated endothelial cells: rational design through target quantification.

Andrew Jefferson, Rohan S Wijesurendra, Martina A McAteer, Janet E Digby, Gillian Douglas, Thomas Bannister, Francisco Perez-Balderas, Zsolt Bagi, Alistair C Lindsay, Robin P Choudhury

Open access · hybridAbstract readVideo-Audio Media
In one paragraph

Article in Atherosclerosis, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.0field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Epigenetic basis of diabetic vasculopathy.Frontiers in endocrinology · 2022
    Review
  3. A novel molecular magnetic resonance imaging agent targeting activated leukocyte cell adhesion molecule as demonstrated in mouse brain metastasis models.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Article
  4. Article
  5. Molecular Imaging of the Heart.Comprehensive Physiology · 2019
    Review
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Metal imaging in neurodegenerative diseases.Metallomics : integrated biometal science · 2012
    Review
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Andrew JeffersonDepartment of Cardiovascular Medicine and Oxford Acute Vascular Imaging Centre, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom.
Rohan S Wijesurendra
Martina A McAteer
Janet E Digby
Gillian Douglas
Thomas Bannister
Francisco Perez-Balderas
Zsolt Bagi
Alistair C Lindsay
Robin P Choudhury
John Radcliffe Hospital · GBUniversity of Oxford · GB

Funding

Flow-induced coronary vasospasm in diabetic patientsR01HL104126 · NHLBI · NEW YORK MEDICAL COLLEGE · PI BAGI, ZSOLT · 2010 to 2014
$1.9M
British Heart Foundation PG/08/016/24514Cancer Research UK C28461Medical Research Council G0701128NHLBI NIH HHS R01 HL104126Wellcome Trust 090532
6 · The paper itself

Abstract

objectivesOptical coherence tomography (OCT) is a high resolution imaging technique used to assess superficial atherosclerotic plaque morphology. Utility of OCT may be enhanced by contrast agents targeting molecular mediators of inflammation. METHODS AND

resultsMicroparticles of iron oxide (MPIO; 1 and 4.5 μm diameter) in suspension were visualized and accurately quantified using a clinical optical coherence tomography system. Bound to PECAM-1 on a plane of cultured endothelial cells under static conditions, 1 μm MPIO were also readily detected by OCT. To design a molecular contrast probe that would bind activated endothelium under conditions of shear stress, we quantified the expression (basal vs. TNF-activated; molecules μm(-2)) of VCAM-1 (not detected vs. 16 ± 1); PECAM-1 (132 ± 6 vs. 198 ± 10) and E-selectin (not detected vs. 46 ± 0.6) using quantitative flow cytometry. We then compared the retention of antibody-conjugated MPIO targeting each of these molecules plus a combined VCAM-1 and E-selectin (E+V) probe across a range of physiologically relevant shear stresses. E+V MPIO were consistently retained with highest efficiency (P < 0.001) and at a density that provided conspicuous contrast effects on OCT pullback.

conclusionMicroparticles of iron oxide were detectable using a clinical OCT system. Assessment of binding under flow conditions recommended an approach that targeted both E-selectin and VCAM-1. Bound to HUVEC under conditions of flow, targeted 1 μm E+V MPIO were readily identified on OCT pullback. Molecular imaging with OCT may be feasible in vivo using antibody targeted MPIO.

Indexed as

Molecular ProbesTomography, Optical CoherenceAnimalsAntibodies, MonoclonalArteriolesBiomarkersCells, CulturedCoronary VesselsE-SelectinFerric CompoundsFlow CytometryHumansHuman Umbilical Vein Endothelial CellsImmunohistochemistryInflammation MediatorsLigandsAntibodies, MonoclonalBiomarkersE-SelectinFerric Compoundsferric oxideInflammation MediatorsLigandsMolecular ProbesPlatelet Endothelial Cell Adhesion Molecule-1SELE protein, humanTumor Necrosis Factor-alphaVascular Cell Adhesion Molecule-1

Identifiers

PMID21872249
PMCPMC3234340
OpenAlexW1978186113

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.