Evidence map›Paper›PMID 26491562›Full record

ArticleInternational journal of molecular imaging2015

Comparison of Folate Receptor Targeted Optical Contrast Agents for Intraoperative Molecular Imaging.

Elizabeth De Jesus, Jane J Keating, Sumith A Kularatne, Jack Jiang, Ryan Judy, Jarrod Predina, Shuming Nie, Philip Low, Sunil Singhal

Open access · hybridAbstract read
In one paragraph

Article in International journal of molecular imaging, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
4.9field-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

53 citing papers in PubMed, 81 citations in OpenAlex.

  1. Trial
  2. A Phase III Study of Pafolacianine Injection (OTL38) for Intraoperative Imaging of Folate Receptor-Positive Ovarian Cancer (Study 006).Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2023
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  7. More Than a Glow: How Cyanine Dyes Shape Tracer Pharmacokinetics.Angewandte Chemie (International ed. in English) · 2026
    Review
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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 5 institutions in 1 country.

Elizabeth De JesusDivision of Thoracic Surgery, Department of Surgery, University of Pennsylvania and Philadelphia VA Medical Center, Philadelphia, PA 19104, USA.
Jane J KeatingDivision of Thoracic Surgery, Department of Surgery, University of Pennsylvania and Philadelphia VA Medical Center, Philadelphia, PA 19104, USA.
Sumith A KularatneOn Target Laboratories, Inc., West Lafayette, IN 47906, USA.
Jack JiangDivision of Thoracic Surgery, Department of Surgery, University of Pennsylvania and Philadelphia VA Medical Center, Philadelphia, PA 19104, USA.
Ryan JudyDivision of Thoracic Surgery, Department of Surgery, University of Pennsylvania and Philadelphia VA Medical Center, Philadelphia, PA 19104, USA.
Jarrod PredinaDivision of Thoracic Surgery, Department of Surgery, University of Pennsylvania and Philadelphia VA Medical Center, Philadelphia, PA 19104, USA.
Shuming NieDepartments of Biomedical Engineering and Chemistry, Emory University, Atlanta, GA 30322, USA.
Philip LowDepartment of Chemistry, Purdue University, West Lafayette, IN 47907, USA.
Sunil SinghalDivision of Thoracic Surgery, Department of Surgery, University of Pennsylvania and Philadelphia VA Medical Center, Philadelphia, PA 19104, USA.
Philadelphia VA Medical Center · USUniversity of Pennsylvania · USEmory University · USOn Target Laboratories (United States) · USPurdue University West Lafayette · US

Funding

Contrast-Enhanced and Image-Guided Surgery of Lung CancerR01CA163256 · NCI · EMORY UNIVERSITY · PI JO, HANJOONG, SINGHAL, SUNIL · 2011 to 2015
$6.5M
NCI NIH HHS R01 CA163256
6 · The paper itself

Abstract

Background. Intraoperative imaging can identify cancer cells in order to improve resection; thus fluorescent contrast agents have emerged. Our objective was to do a preclinical comparison of two fluorescent dyes, EC17 and OTL38, which both target folate receptor but have different fluorochromes. Materials. HeLa and KB cells lines were used for in vitro and in vivo comparisons of EC17 and OTL38 brightness, sensitivity, pharmacokinetics, and biodistribution. In vivo experiments were then performed in mice. Results. The peak excitation and emission wavelengths of EC17 and OTL38 were 470/520 nm and 774/794 nm, respectively. In vitro, OTL38 required increased incubation time compared to EC17 for maximum fluorescence; however, peak signal-to-background ratio (SBR) was 1.4-fold higher compared to EC17 within 60 minutes (p < 0.001). Additionally, the SBR for detecting smaller quantity of cells was improved with OTL38. In vivo, the mean improvement in SBR of tumors visualized using OTL38 compared to EC17 was 3.3 fold (range 1.48-5.43). Neither dye caused noticeable toxicity in animal studies. Conclusions. In preclinical testing, OTL38 appears to have superior sensitivity and brightness compared to EC17. This coincides with the accepted belief that near infrared (NIR) dyes tend to have less autofluorescence and scattering issues than visible wavelength fluorochromes.

Identifiers

PMID26491562
PMCPMC4600912
OpenAlexW1918904712

What OpenQuestion holds

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LicenceCC BY
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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.