Evidence map›Paper›PMID 26444497›Full record

ArticleBioconjugate chemistry2016

Role of Fluorophore Charge on the In Vivo Optical Imaging Properties of Near-Infrared Cyanine Dye/Monoclonal Antibody Conjugates.

Kazuhide Sato, Alexander P Gorka, Tadanobu Nagaya, Megan S Michie, Roger R Nani, Yuko Nakamura, Vince L Coble, Olga V Vasalatiy, Rolf E Swenson, Peter L Choyke and 2 more

Open access · greenAbstract read
In one paragraph

Article in Bioconjugate chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
5.9field-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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. 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

12 authors at 2 institutions in 1 country.

Kazuhide Sato
Alexander P Gorka
Tadanobu Nagaya
Megan S Michie
Roger R Nani
Yuko Nakamura
Vince L CobleImaging Probe Development Center, National Heart, Lung, and Blood Institute, National Institutes of Health , Rockville, Maryland 20850, United States.
Olga V VasalatiyImaging Probe Development Center, National Heart, Lung, and Blood Institute, National Institutes of Health , Rockville, Maryland 20850, United States.
Rolf E SwensonImaging Probe Development Center, National Heart, Lung, and Blood Institute, National Institutes of Health , Rockville, Maryland 20850, United States.
Peter L Choyke
Martin J Schnermann
Hisataka Kobayashi
National Heart Lung and Blood Institute · USNational Institutes of Health · US

Funding

Imaging Probe Development CenterZICHL005090 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI SWENSON, ROLF · 2011 to 2025
$22.2M
Cancer-cell specific therapy: photo-immunotherapyZIABC011513 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI KOBAYASHI, HISATAKA · 2013 to 2025
$15.5M
Synthesis and evaluation of small-molecule imaging agentsZIABC011506 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SCHNERMANN, MARTIN · 2013 to 2025
$12.1M
Near-IR Photorelease Chemistry: Discovery and ApplicationsZIABC011564 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SCHNERMANN, MARTIN · 2014 to 2025
$9.5M
Activatable molecular cancer imaging probeZIABC011512 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI KOBAYASHI, HISATAKA · 2013 to 2025
$2.7M
Intramural NIH HHS ZIA BC011506Intramural NIH HHS ZIA BC011512Intramural NIH HHS ZIA BC011513Intramural NIH HHS ZIA BC011564
6 · The paper itself

Abstract

Near-infrared (NIR) fluorophores have several advantages over visible-light fluorophores, including superior light penetration in tissue and lower autofluorescence. We recently demonstrated that a new class of NIR cyanine dyes containing a novel C4'-O-alkyl linker exhibit greater chemical stability and excellent optical properties relative to existing C4'-O-aryl variants. We synthesized two NIR cyanine dyes with the same core structure but different indolenine substituents: FNIR-774 bearing four sulfonate groups and FNIR-Z-759 bearing a combination of two sulfonates and two quaternary ammonium cations, resulting in an anionic (-3) or monocationic (+1) charge, respectively. In this study, we compare the in vitro and in vivo optical imaging properties of monoclonal antibody (mAb) conjugates of FNIR-774 and FNIR-Z-759 with panitumumab (pan) at antibody-to-dye ratios of 1:2 or 1:5. Conjugates of both dyes demonstrated similar quenching capacity, stability, and brightness in target cells in vitro. However, FNIR-Z-759 conjugates showed significantly lower background in mice, resulting in higher tumor-to-background ratio. Thus, FNIR-Z-759 conjugates appear to have superior in vivo imaging characteristics compared with FNIR-774 conjugates, especially in the abdominal region, regardless of the dye-mAb ratio. These results suggest that zwitterionic cyanine dyes are a promising class of fluorophores for improving in vivo optical imaging with antibody-NIR dye conjugates.

Indexed as

Optical ImagingAnimalsAntibodies, MonoclonalCarbocyaninesCell Line, TumorFemaleFluorescent DyesHumansImmunoconjugatesMiceMice, NudeMicroscopy, FluorescenceNeoplasmsPanitumumabQuaternary Ammonium CompoundsSulfonic AcidsAntibodies, MonoclonalCarbocyaninesFluorescent DyesImmunoconjugatesPanitumumabQuaternary Ammonium CompoundsSulfonic Acids

Identifiers

PMID26444497
PMCPMC7512024
OpenAlexW2200426434

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.