Evidence map›Paper›PMID 32990883›Full record

ArticleEJNMMI research2020

Fluorescent image-guided surgery in breast cancer by intravenous application of a quenched fluorescence activity-based probe for cysteine cathepsins in a syngeneic mouse model.

Frans V Suurs, Si-Qi Qiu, Joshua J Yim, Carolien P Schröder, Hetty Timmer-Bosscha, Eric S Bensen, John T Santini, Elisabeth G E de Vries, Matthew Bogyo, Gooitzen M van Dam

Open access · goldAbstract read
In one paragraph

Article in EJNMMI research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 13% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Phase 2 Dose-Ranging Trial of VGT-309 for Molecular Imaging of Cancer during Pulmonary Resection.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2025
    Trial
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  4. Near-Infrared Imaging Using a Cathepsin-Targeted, Quenched Activity-Based Probe Identifies Naturally Occurring Canine Appendicular Osteosarcoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2026
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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

10 authors at 3 institutions in 2 countries.

Frans V SuursDepartment of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Si-Qi QiuDepartment of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. s_patrick@163.com.
Joshua J YimDepartment of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA.
Carolien P SchröderDepartment of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Hetty Timmer-BosschaDepartment of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Eric S BensenVergent Bioscience, Inc., Minneapolis, MN, USA.
John T SantiniVergent Bioscience, Inc., Minneapolis, MN, USA.
Elisabeth G E de VriesDepartment of Medical Oncology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
Matthew BogyoDepartment of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, USA.
Gooitzen M van DamDepartment of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands. g.m.van.dam@umcg.nl.
University Medical Center Groningen · NLUniversity of Groningen · NLStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe reoperation rate for breast-conserving surgery is as high as 15-30% due to residual tumor in the surgical cavity after surgery. In vivo tumor-targeted optical molecular imaging may serve as a red-flag technique to improve intraoperative surgical margin assessment and to reduce reoperation rates. Cysteine cathepsins are overexpressed in most solid tumor types, including breast cancer. We developed a cathepsin-targeted, quenched fluorescent activity-based probe, VGT-309, and evaluated whether it could be used for tumor detection and image-guided surgery in syngeneic tumor-bearing mice.

methodsBinding specificity of the developed probe was evaluated in vitro. Next, fluorescent imaging in BALB/c mice bearing a murine breast tumor was performed at different time points after VGT-309 administration. Biodistribution of VGT-309 after 24 h in tumor-bearing mice was compared to control mice. Image-guided surgery was performed at multiple time points tumors with different clinical fluorescent camera systems and followed by ex vivo analysis.

resultsThe probe was specifically activated by cathepsins X, B/L, and S. Fluorescent imaging revealed an increased tumor-to-background contrast over time up to 15.1 24 h post probe injection. In addition, VGT-309 delineated tumor tissue during image-guided surgery with different optical fluorescent imaging camera systems.

conclusionThese results indicate that optical fluorescent molecular imaging using the cathepsin-targeted probe, VGT-309, may improve intraoperative tumor detection, which could translate to more complete tumor resection when coupled with commercially available surgical tools and techniques.

Indexed as

Breast cancerCathepsin targetingImage-guided surgery (IGS)Indocyanine green (ICG)Quenched fluorescent activity-based probe (qABP)

Identifiers

PMID32990883
PMCPMC7524956
OpenAlexW3091348080

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.