Evidence map›Paper›PMID 23131536›Full record

ArticleBiomaterials2013

Incorporation of paramagnetic, fluorescent and PET/SPECT contrast agents into liposomes for multimodal imaging.

Nick Mitchell, Tammy L Kalber, Margaret S Cooper, Kavitha Sunassee, Samantha L Chalker, Karen P Shaw, Katherine L Ordidge, Adam Badar, Samuel M Janes, Philip J Blower and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Biomaterials, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
5.0field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 82 citations in OpenAlex.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Biodistribution ofInternational journal of nanomedicine · 2021
    Article
  8. Radiolabeled PET/MRI Nanoparticles for Tumor Imaging.Journal of clinical medicine · 2019
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Surfactant-Stripped Frozen Pheophytin Micelles for Multimodal Gut Imaging.Advanced materials (Deerfield Beach, Fla.) · 2016
    Article
  15. Cancer theranostics with ⁶⁴Cu/¹⁷⁷Lu-loaded liposomes.European journal of nuclear medicine and molecular imaging · 2016
    Article
  16. Radioactive Nanomaterials for Multimodality Imaging.Tomography (Ann Arbor, Mich.) · 2016
    Article
  17. Article
  18. Article
  19. Review
  20. Recent Advances in Higher-Order, Multimodal, Biomedical Imaging Agents.Small (Weinheim an der Bergstrasse, Germany) · 2015
    Review
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

13 authors at 3 institutions in 1 country.

Nick MitchellDepartment of Chemistry, University College London, Christopher Ingold Laboratories, 20 Gordon St, London WC1H 0AJ, UK.
Tammy L Kalber
Margaret S Cooper
Kavitha Sunassee
Samantha L Chalker
Karen P Shaw
Katherine L Ordidge
Adam Badar
Samuel M Janes
Philip J Blower
Mark F Lythgoe
Helen C Hailes
Alethea B Tabor
University College London · GBSt Thomas' Hospital · GBRoyal Institution of Great Britain · GB

Funding

British Heart FoundationCancer Research UK 16463Cancer Research UK C1519/A10331Department of HealthMedical Research CouncilWellcome TrustWellcome Trust 084052/Z/07/ZWellcome Trust WT/091730/MA
6 · The paper itself

Abstract

A series of metal-chelating lipid conjugates has been designed and synthesized. Each member of the series bears a 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) macrocycle attached to the lipid head group, using short n-ethylene glycol (n-EG) spacers of varying length. Liposomes incorporating these lipids, chelated to Gd(3+), (64)Cu(2+), or (111)In(3+), and also incorporating fluorescent lipids, have been prepared, and their application in optical, magnetic resonance (MR) and single-photon emission tomography (SPECT) imaging of cellular uptake and distribution investigated in vitro and in vivo. We have shown that these multimodal liposomes can be used as functional MR contrast agents as well as radionuclide tracers for SPECT, and that they can be optimized for each application. When shielded liposomes were formulated incorporating 50% of a lipid with a short n-EG spacer, to give nanoparticles with a shallow but even coverage of n-EG, they showed good cellular internalization in a range of tumour cells, compared to the limited cellular uptake of conventional shielded liposomes formulated with 7% 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[carboxy(polyethyleneglycol)(2000)] (DSPE-PEG2000). Moreover, by matching the depth of n-EG coverage to the length of the n-EG spacers of the DOTA lipids, we have shown that similar distributions and blood half lives to DSPE-PEG2000-stabilized liposomes can be achieved. The ability to tune the imaging properties and distribution of these liposomes allows for the future development of a flexible tri-modal imaging agent.

Indexed as

LiposomesContrast MediaMagnetic Resonance ImagingMicroscopy, FluorescenceNanocapsulesSubtraction TechniqueTomography, Emission-Computed, Single-PhotonContrast MediaLiposomesNanocapsules

Identifiers

PMID23131536
PMCPMC3520009
OpenAlexW2124396336

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.