Evidence map›Paper›PMID 32222965›Full record

ArticlePhotochemistry and photobiology2020

Targeted Photodynamic Therapy of Human Head and Neck Squamous Cell Carcinoma with Anti-epidermal Growth Factor Receptor Antibody Cetuximab and Photosensitizer IR700DX in the Mouse Skin-fold Window Chamber Model.

Wei Peng, Henriette S de Bruijn, Timo L M Ten Hagen, Go M van Dam, Jan L N Roodenburg, Kristian Berg, Max J H Witjes, Dominic J Robinson

Open access · hybridAbstract read
In one paragraph

Article in Photochemistry and photobiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Review
  3. Special Issue "Molecular Advances in Oncological Photodynamic Therapy".International journal of molecular sciences · 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

8 authors at 3 institutions in 2 countries.

Wei PengDepartment of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands.ORCID 0000-0002-9463-2169
Henriette S de BruijnCentre for Optical Diagnostics and Therapy, Department of Otorhinolaryngology and Head & Neck Surgery, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands.
Timo L M Ten HagenLaboratory of Experimental Oncology, Department of Pathology, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands.
Go M van DamDepartment of Surgery, University Medical Center Groningen, Groningen, The Netherlands.
Jan L N RoodenburgDepartment of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands.
Kristian BergDepartment of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.
Max J H WitjesDepartment of Oral and Maxillofacial Surgery, University Medical Center Groningen, Groningen, The Netherlands.
Dominic J RobinsonCentre for Optical Diagnostics and Therapy, Department of Otorhinolaryngology and Head & Neck Surgery, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands.
Erasmus MC · NLUniversity Medical Center Groningen · NLOslo University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Targeted photodynamic therapy (PDT) in head/neck cancer patients with a conjugate of the anti-epidermal growth factor receptor (EGFR) antibody, Cetuximab and a phthalocyanine photosensitizer IR700DX is under way, but the exact mechanisms of action are still not fully understood. In this study, the EGFR-overexpressing human head/neck OSC-19-luc2-cGFP tumor with transfected GFP gene was used in a skin-fold window chamber model in BALB/c nude mice. The uptake and localization of the conjugate in the tumor and its surrounding normal tissues were studied by an intravital confocal laser scanning microscopy with image analyses. The tumor was also irradiated with 690 nm laser light 24 h after conjugate administration. The vascular and tumor responses were examined by morphological evaluation and immunohistochemistry (IHC). The amount of conjugate in the tumor peaked at 24-48 h after injection. Image analyses of colocalization correlation parameters demonstrated a high fraction of the conjugate IR700DX colocalized in the GFP-expressing tumor cells. PDT-treated tumors showed extensive necrotic/apoptotic destruction with little vascular damage, while IHC showed no HIF-1α expression and decreased EGFR and Ki67 expression with activated caspase-3 overexpression, indicating a direct killing of tumor cells through both necrotic and apoptotic cell death.

Indexed as

AnimalsAntineoplastic Agents, ImmunologicalCell Line, TumorCetuximabErbB ReceptorsHumansMicePhotochemotherapyPhotosensitizing AgentsSquamous Cell Carcinoma of Head and NeckXenograft Model Antitumor AssaysAntineoplastic Agents, ImmunologicalCetuximabErbB ReceptorsPhotosensitizing Agents

Identifiers

PMID32222965
PMCPMC7383977
OpenAlexW3014019474

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.