Evidence map›Paper›PMID 18260609›Full record

ArticleBioconjugate chemistry2008

Noninvasive optical imaging of staphylococcus aureus bacterial infection in living mice using a Bis-dipicolylamine-Zinc(II) affinity group conjugated to a near-infrared fluorophore.

W Matthew Leevy, Seth T Gammon, James R Johnson, Andrew J Lampkins, Hua Jiang, Manuel Marquez, David Piwnica-Worms, Mark A Suckow, Bradley D Smith

Open access · greenAbstract read
In one paragraph

Article in Bioconjugate chemistry, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
5.5field-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

49 citing papers in PubMed, 107 citations in OpenAlex.

  1. Review
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  5. Recent Progress in the Molecular Imaging of Tumor-Treating Bacteria.Nuclear medicine and molecular imaging · 2021
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  6. Review
  7. A Fluorescent Teixobactin Analogue.ACS chemical biology · 2020
    Article
  8. Review
  9. Article
  10. Review
  11. Validation of 2-Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2018
    Article
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  15. Article
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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

9 authors at 1 institution in 1 country.

W Matthew LeevyDepartment of Chemistry and Biochemistry and Walther Cancer Research Center, 251 Nieuwland Science Hall, University of Notre Dame, Notre Dame, IN 46556, USA.
Seth T Gammon
James R Johnson
Andrew J Lampkins
Hua Jiang
Manuel Marquez
David Piwnica-Worms
Mark A Suckow
Bradley D Smith
Mallinckrodt (United States) · US

Funding

WU-MDACC Inter-Institutional Molecular Imaging CenterP50CA094056 · NCI · WASHINGTON UNIVERSITY · PI PIWNICA-WORMS, DAVID · 2002 to 2016
$26.3M
PROMOTERS AND INHIBITORS OF MEMBRANE FUSIONR01GM059078 · NIGMS · UNIVERSITY OF NOTRE DAME · PI SMITH, BRADLEY D · 1999 to 2019
$5.8M
MOLECULAR ONCOLOGY TRAINING GRANTT32CA113275 · NCI · WASHINGTON UNIVERSITY · PI Matthew J Walter · 2006 to 2026
$5.7M
MEMBRANE PERMEANT PEPTIDES FOR IMAGING CELL FUNCTIONR01EY019587 · NEI · WASHINGTON UNIVERSITY · PI PIWNICA-WORMS, DAVID · 2009 to 2022
$5.3M
NCI NIH HHS P50 CA094056NCI NIH HHS P50 CA94056NCI NIH HHS T32 CA113275NEI NIH HHS R01 EY019587NIGMS NIH HHS GM059078NIGMS NIH HHS R01 GM059078
6 · The paper itself

Abstract

Optical imaging of bacterial infection in living animals is usually conducted with genetic reporters such as light-emitting enzymes or fluorescent proteins. However, there are many circumstances where genetic reporters are not applicable, and there is a need for exogenous synthetic probes that can selectively target bacteria. The focus of this study is a fluorescent imaging probe that is composed of a bacterial affinity group conjugated to a near-infrared dye. The affinity group is a synthetic zinc (II) coordination complex that targets the anionic surfaces of bacterial cells. The probe allows detection of Staphylococcus aureus infection (5 x 10 (7) cells) in a mouse leg infection model using whole animal near-infrared fluorescence imaging. Region of interest analysis showed that the signal ratio for infected leg to uninfected leg reaches 3.9 +/- 0.5 at 21 h postinjection of the probe. Ex vivo imaging of the organs produced a signal ratio of 8 for infected to uninfected leg. Immunohistochemical analysis confirmed that the probe targeted the bacterial cells in the infected tissue. Optimization of the imaging filter set lowered the background signal due to autofluorescence and substantially improved imaging contrast. The study shows that near-infrared molecular probes are amenable to noninvasive optical imaging of localized S. aureus infection.

Indexed as

Organometallic CompoundsPicolinic AcidsAffinity LabelsAnimalsColony Count, MicrobialDiagnostic ImagingImage Processing, Computer-AssistedImmunohistochemistryMiceMicroscopy, FluorescenceMuscle, SkeletalSpectroscopy, Near-InfraredStaphylococcal InfectionsTissue DistributionAffinity Labelsbis-dipicolylamine-Zinc(II)Organometallic CompoundsPicolinic Acids

Identifiers

PMID18260609
PMCPMC2852891
OpenAlexW2170646793

What OpenQuestion holds

Textmetadata
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.