Evidence map›Paper›PMID 34309885›Full record

ArticleJournal of surgical oncology2021

Rapid tumor-labeling kinetics with a site-specific near-infrared anti-CEA nanobody in a patient-derived orthotopic xenograft mouse model of colon cancer.

Thinzar M Lwin, Michael A Turner, Siamak Amirfakhri, Hiroto Nishino, Pieterjan Debie, Bard C Cosman, Robert M Hoffman, Sophie Hernot, Michael Bouvet

Open access · greenAbstract read
In one paragraph

Article in Journal of surgical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. 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 2 institutions in 2 countries.

Thinzar M LwinDepartment of Surgery, University of California San Diego, San Diego, California, USA.ORCID http://orcid.org/0000-0003-1820-088X
Michael A TurnerDepartment of Surgery, University of California San Diego, San Diego, California, USA.
Siamak AmirfakhriDepartment of Surgery, University of California San Diego, San Diego, California, USA.
Hiroto NishinoDepartment of Surgery, University of California San Diego, San Diego, California, USA.
Pieterjan DebieLaboratory for In vivo Cellular and Molecular Imaging (ICMI-BEFY-MIMA), Vrije Universiteit Brussel, Brussels, Belgium.ORCID http://orcid.org/0000-0002-9128-7814
Bard C CosmanDepartment of Surgery, University of California San Diego, San Diego, California, USA.
Robert M HoffmanDepartment of Surgery, University of California San Diego, San Diego, California, USA.
Sophie HernotLaboratory for In vivo Cellular and Molecular Imaging (ICMI-BEFY-MIMA), Vrije Universiteit Brussel, Brussels, Belgium.ORCID https://orcid.org/0000-0002-8739-6137
Michael BouvetDepartment of Surgery, University of California San Diego, San Diego, California, USA.ORCID http://orcid.org/0000-0002-0086-2159
University of California San Diego · USVrije Universiteit Brussel · BE

Funding

VIRAL MALIGNANCYP30CA023100 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Jesse Nodora · 1985 to 2026
$124.9M
UCSD Cancer Center Training Program in Drug DevelopmentT32CA121938 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Michael Bouvet, Dwayne G. Stupack · 2006 to 2026
$10.3M
Color-Coded Imaging of Pancreatic Cancer Microenvironment for Drug DiscoveryR01CA132971 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BOUVET, MICHAEL, YANG, MENG · 2009 to 2013
$1.7M
Imageable Mouse Models of Pancreatic CancerR33CA109949 · NCI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BOUVET, MICHAEL · 2007 to 2008
$577k
Imageable Mouse Models of Pancreatic CancerR21CA109949 · NCI · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI BOUVET, MICHAEL · 2004 to 2005
$341k
Development of Near Infrared Fluorescence-Guided Surgical Navigation and Tumor Specific Photoimmunotherapy for Improved Outcomes for GI CancersI01BX003856 · VA · VA SAN DIEGO HEALTHCARE SYSTEM · PI BOUVET, MICHAEL · 2018 to 2022
–
CMA- Marker-assisted prevention and risk stratification (MAPRS): Mucin signatures and molecular imaging for the early detection of colorectal cancer.I01BX004494 · VA · VA SAN DIEGO HEALTHCARE SYSTEM · PI BOUVET, MICHAEL · 2020 to 2023
–
BLRD VA I01 BX003856BLRD VA I01 BX004494NCI NIH HHS 2P30CA023100-28NCI NIH HHS CA109949NCI NIH HHS CA132971NCI NIH HHS P30 CA023100NCI NIH HHS R01 CA132971NCI NIH HHS R21 CA109949NCI NIH HHS R33 CA109949NCI NIH HHS T32 CA121938NCI NIH HHS T32CA121938VA merit review 1 I01 BX003856-01A1
6 · The paper itself

Abstract

BACKGROUND/

objectivesNanobodies are the smallest biologic antigen-binding fragments derived from camelid-derived antibodies. Nanobodies effect a peak tumor signal within minutes of injection and present a novel opportunity for fluorescence-guided surgery (FGS). The present study demonstrates the efficacy of an anti-CEA nanobody conjugated to near-infrared fluorophore LICOR-IRDye800CW for rapid intraoperative tumor labeling of colon cancer.

methodsLS174T human colon cancer cells or fragments of patient-derived colon cancer were implanted subcutaneously or orthotopically in nude mice. Anti-CEA nanobodies were conjugated with IRDye800CW and 1-3 nmol were injected intravenously. Mice were serially imaged over time. Peak fluorescence signal and tumor-to-background ratio (TBR) were recorded.

resultsColon cancer tumors were detectable using fluorescent anti-CEA nanobody within 5 min of injection at all three doses. Maximal fluorescence intensity was observed within 15 min-3 h for all three doses with TBR values ranging from 1.3 to 2.3. In the patient-derived model of colon cancer, fluorescence was detectable with a TBR of 4.6 at 3 h.

conclusionsFluorescent anti-CEA nanobodies rapidly and specifically labeled colon cancer in cell-line-based and patient-derived orthotopic xenograft (PDOX) models. The kinetics of nanobodies allow for same day administration and imaging. Anti-CEA-nb-800 is a promising and practical molecule for FGS of colon cancer.

Indexed as

Optical ImagingSingle-Domain AntibodiesAnimalsCarcinoembryonic AntigenColonic NeoplasmsDisease Models, AnimalFluorescent DyesHeterograftsHumansMiceMice, NudeNeoplasms, ExperimentalCarcinoembryonic AntigenFluorescent DyesSingle-Domain Antibodiesanti-CEA nanobodyfluorescence-guided surgeryfluorescent anti-CEA nanobodypatient-derived orthotopic xenograft modelstumor-specific fluorescence

Identifiers

PMID34309885
PMCPMC8556245
OpenAlexW3183752381

What OpenQuestion holds

Textmetadata
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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.