Evidence map›Paper›PMID 23316869›Full record

ArticleMolecular pharmaceutics2013

Positron emission tomography imaging of tumor angiogenesis with a (61/64)Cu-labeled F(ab')(2) antibody fragment.

Hao Hong, Yin Zhang, Hakan Orbay, Hector F Valdovinos, Tapas R Nayak, Jero Bean, Charles P Theuer, Todd E Barnhart, Weibo Cai

Abstract read
In one paragraph

Article in Molecular pharmaceutics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. European journal of nuclear medicine and molecular imaging · 2022
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  7. Noninvasive Evaluation of CD20 Expression UsingJournal of nuclear medicine : official publication, Society of Nuclear Medicine · 2021
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  8. Cancer biotherapy & radiopharmaceuticals · 2020
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  9. Review
  10. Antibody-Based Tracers for PET/SPECT Imaging of Chronic Inflammatory Diseases.Chembiochem : a European journal of chemical biology · 2019
    Review
  11. Article
  12. IntrabilayerACS nano · 2017
    Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Noninvasive brain cancer imaging with a bispecific antibody fragment, generated via click chemistry.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  18. Review
  19. Article
  20. 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

9 authors at 3 institutions in 1 country.

Hao HongDepartment of Radiology, University of Wisconsin-Madison, Madison, WI 53705-2275, United States.
Yin Zhang
Hakan Orbay
Hector F Valdovinos
Tapas R Nayak
Jero Bean
Charles P Theuer
Todd E Barnhart
Weibo Cai
University of Wisconsin–Madison · USTracon Pharmaceuticals (United States) · USUniversity of Wisconsin Carbone Cancer Center · US

Funding

UW COMPREHENSIVE CANCER CENTER SUPPORTP30CA014520 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI AMY TRENTHAM-DIETZ · 1985 to 2026
$142.6M
NCI NIH HHS P30 CA014520
6 · The paper itself

Abstract

The objective of this study was to characterize the in vitro and in vivo properties of the F(ab')(2) fragment of TRC105, a human/murine chimeric IgG1 monoclonal antibody that binds with high avidity to human and murine CD105 (i.e., endoglin), and investigate its potential for positron emission tomography (PET) imaging of tumor angiogenesis after (61/64)Cu-labeling. TRC105-F(ab')(2) of high purity was produced by pepsin digestion of TRC105, which was confirmed by SDS-PAGE, HPLC analysis, and mass spectrometry. (61/64)Cu-labeling of NOTA-TRC105-F(ab')(2) (NOTA denotes 1,4,7-triazacyclononane-1,4,7-triacetic acid) was achieved with yields of >75% (specific activity: ∼115 GBq/μmol). PET imaging revealed rapid tumor uptake of (64)Cu-NOTA-TRC105-F(ab')(2) in the 4T1 murine breast cancer model (5.8 ± 0.8, 7.6 ± 0.6, 5.6 ± 0.4, 5.0 ± 0.6, and 3.8 ± 0.7% ID/g at 0.5, 3, 16, 24, and 48 h postinjection respectively; n = 4). Since tumor uptake peaked at 3 h postinjection, (61)Cu-NOTA-TRC105-F(ab')(2) also gave good tumor contrast at 3 and 8 h postinjection. CD105 specificity of the tracers was confirmed by blocking studies and histopathology. In conclusion, the use of a F(ab')(2) fragment led to more rapid tumor uptake (which peaked at 3 h postinjection) than radiolabeled intact antibody (which often peaked after 24 h postinjection), which may allow for same day immunoPET imaging in future clinical studies.

Indexed as

AnimalsAntibodies, MonoclonalAntigens, CDBreast NeoplasmsCopperEndoglinFemaleFlow CytometryHumansIntracellular Signaling Peptides and ProteinsIn Vitro TechniquesMiceNeovascularization, PathologicPositron-Emission TomographyReceptors, Cell SurfaceAntibodies, MonoclonalAntigens, CDCopperEndoglinENG protein, humanEng protein, mouseIntracellular Signaling Peptides and ProteinsReceptors, Cell Surface

Identifiers

PMID23316869
PMCPMC3563848
OpenAlexW2084239427

What OpenQuestion holds

Textmetadata
LicenceTDM
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.