Evidence map›Paper›PMID 29037911›Full record

ArticlePhotodiagnosis and photodynamic therapy2017

Assessing daylight & low-dose rate photodynamic therapy efficacy, using biomarkers of photophysical, biochemical and biological damage metrics in situ.

Ana Luiza Ribeiro de Souza, Ethan LaRochelle, Kayla Marra, Jason Gunn, Scott C Davis, Kimberley S Samkoe, M Shane Chapman, Edward V Maytin, Tayyaba Hasan, Brian W Pogue

Open access · hybridAbstract read
In one paragraph

Article in Photodiagnosis and photodynamic therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.0field-weighted citation impact, top 12% 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, 15 citations in OpenAlex.

  1. Trial
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  5. Observational
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  7. Review
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  9. Antioxidants (Basel, Switzerland) · 2018
    Article
  10. Article
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 4 institutions in 2 countries.

Ana Luiza Ribeiro de SouzaThayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA; CAPES Foundation, Ministry of Education of Brazil, Brasilia 70040-020, Brazil.
Ethan LaRochelleThayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA.
Kayla MarraThayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA.
Jason GunnThayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA.
Scott C DavisThayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA.
Kimberley S SamkoeThayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA; Department of Surgery, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03756, USA.
M Shane ChapmanDepartment of Surgery, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03756, USA.
Edward V MaytinDepartment of Biomedical Engineering, Cleveland Clinic, Cleveland, OH, 44195, USA.
Tayyaba HasanWellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA.
Brian W PogueThayer School of Engineering, Dartmouth College, Hanover, NH, 03755, USA; Department of Surgery, Geisel School of Medicine, Dartmouth College, Lebanon, NH, 03756, USA. Electronic address: brian.w.pogue@dartmouth.edu.
Dartmouth College · USCleveland Clinic · USCoordenação de Aperfeicoamento de Pessoal de Nível Superior · BRHarvard University · US

Funding

Small Molecule Enhancers of Photodynamic Therapy for Skin CancerP01CA084203 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI Brian William Pogue · 2001 to 2026
$27.9M
NCI NIH HHS P01 CA084203
6 · The paper itself

Abstract

backgroundSunlight can activate photodynamic therapy (PDT), and this is a proven strategy to reduce pain caused byconventional PDT treatment, but assessment of this and other alternative low dose rate light sources, and their efficacy, has not been studied in an objective, controlled pre-clinical setting. This study used three objective assays to assess the efficacy of different PDT treatment regimens, using PpIX fluorescence as a photophysical measure, STAT3 cross-linking as a photochemical measure, and keratinocyte damage as a photobiological measure.

methodsNude mouse skin was used along with in vivo measures of photosensitizer fluorescence, keratinocyte nucleus damage from pathology, and STAT3 cross-linking from Western blot analysis. Light sources compared included a low fluence rate red LED panel, compact fluorescent bulbs, halogen bulbs and direct sunlight, as compared to traditional PDT delivery with conventional and fractionated high fluence rate red LED light delivery.

resultsOf the three biomarkers, two had strong correlation to the PpIX-weighted light dose, which is calculated as the product of the treatment light dose (J/cm

conclusionsDaylight or artificial light PDT provides an alternative schedule for delivery of drug-light treatment, and this pre-clinical assay demonstrated that in vivo assays of damage could be used to objectively predict a clinical outcome in this altered delivery process.

Indexed as

SunlightAminolevulinic AcidAnimalsBiomarkersDose-Response Relationship, DrugFemaleKeratinocytesLightingMiceMice, NudePhotochemotherapyPhotosensitizing AgentsProtoporphyrinsSkinSTAT3 Transcription FactorAminolevulinic AcidBiomarkersPhotosensitizing Agentsprotoporphyrin IXProtoporphyrinsSTAT3 Transcription FactorAminolaevulinic acidDamage to keratinocytes“daylight PDT”PhotodynamicPpIX-weighted light doseSTAT3 cross-linking

Identifiers

PMID29037911
PMCPMC5718943
OpenAlexW2763605906

What OpenQuestion holds

Textmetadata
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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.