Evidence map›Paper›PMID 20842454›Full record

ArticleAngiogenesis2010

Vascular regrowth following photodynamic therapy in the chicken embryo chorioallantoic membrane.

Patrycja Nowak-Sliwinska, Judy R van Beijnum, Maaike van Berkel, Hubert van den Bergh, Arjan W Griffioen

Open access · hybridAbstract readEvaluation Study
In one paragraph

Article in Angiogenesis, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
4.6field-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

41 citing papers in PubMed, 87 citations in OpenAlex.

  1. Pmel17 Deficiency Affects Melanogenesis and Promotes Tumor Vascularization.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

5 authors at 2 institutions in 2 countries.

Patrycja Nowak-SliwinskaMedical Photonics Group, Institute of Bioengineering, Swiss Federal Institute of Technology (EPFL), Station 6, 1015 Lausanne, Switzerland. Patrycja.Nowak-Sliwinska@epfl.ch
Judy R van Beijnum
Maaike van Berkel
Hubert van den Bergh
Arjan W Griffioen
Amsterdam UMC Location VUmc · NLÉcole Polytechnique Fédérale de Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Photodynamic therapy (PDT) induces damage to the endothelium, which can lead to increased vascular permeability and, under intensive PDT conditions, even to platelet aggregation, vasoconstriction, and blood flow stasis. Eventually, ischemia, hypoxia, and inflammation can occur, resulting in angiogenesis. We studied the sequence of the vascular events after Visudyne-PDT in the chicken chorioallantoic membrane (CAM) at day 11 of development. Using epi-fluorescence microscopy, we monitored the regrowth of capillaries in the PDT treated area. Immediately after irradiation, the treatment resulted in blood flow arrest. And 24 h post PDT, sprouting of new blood vessels was observed at the edge of the PDT zone. Neovessels looping out from the edge of the PDT zone gave rise to specialized endothelial tip structures guiding the vessels towards the center of the treated area. At 48 h almost all of the treated area was repopulated with functional but morphologically altered vasculature. These observations also showed reperfusion of some of the vessels that had been closed by the PDT treatment. CAM samples were immunohistochemically stained for Ki-67 showing proliferation of endothelial cells in the PDT area. Also, several markers of immature and angiogenic blood vessels, such as αVβ3-integrin, vimentin and galectin-1, were found to be enhanced in the PDT area, while the endothelial maturation marker intercellular adhesion molecule (ICAM)-1 was found to be suppressed. These results demonstrate that the new vascular bed is formed by both neo-angiogenesis and reperfusion of existing vessels. Both the quantitative real-time RT-PCR profile and the response to pharmacological treatment with Avastin, an inhibitor of angiogenesis, suggest that angiogenesis occurs after PDT. The observed molecular profiling results and the kinetics of gene regulation may enable optimizing combination therapies involving PDT for treatment of cancer and other diseases.

Indexed as

Neovascularization, PhysiologicAngiogenesis InhibitorsAngiogenic ProteinsAnimalsAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedBevacizumabBlood VesselsChick EmbryoChorioallantoic MembraneGene Expression RegulationPhotochemotherapyPhotosensitizing AgentsPorphyrinsTranscription, GeneticVerteporfinAngiogenesis InhibitorsAngiogenic ProteinsAntibodies, MonoclonalAntibodies, Monoclonal, HumanizedBevacizumabPhotosensitizing AgentsPorphyrinsVerteporfin

Identifiers

PMID20842454
PMCPMC2980622
OpenAlexW2148309788

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.