Evidence map›Paper›PMID 21858709›Full record

ArticleJournal of cancer research and clinical oncology2011

Influence of the vascular damaging agents DMXAA and ZD6126 on hypericin distribution and accumulation in RIF-1 tumors.

Thierry Marysael, Yicheng Ni, Evelyne Lerut, Peter de Witte

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In one paragraph

Article in Journal of cancer research and clinical oncology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

9 citing papers in PubMed, 13 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Thierry MarysaelLaboratorium voor Farmaceutische Biologie, Faculteit Farmaceutische Wetenschappen, K. U. Leuven, Herestraat 49-Bus 824, 3000 Leuven, Belgium.
Yicheng Ni
Evelyne Lerut
Peter de Witte
KU Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe investigated the influence of two types of vascular damaging agents (VDAs) (DMXAA vs. ZD6126) and sequence of administration (VDA 24 h before HYP vs. HYP 1 h before VDA) to evaluate the effect on hypericin (HYP) accumulation and distribution in necrotic tumors.

methodsFrozen sections of dorsally inoculated RIF-1 tumors were analyzed by fluorescence microscopy and H&E stained for histological evaluation. The localization of HYP was assessed both qualitatively and semi-quantitatively in necrotic tumor, viable tumor, or nontarget host tissue.

resultsWhereas the type of VDA did not influence HYP accumulation and distribution, a clear advantage could be seen when administering VDA 24 h before HYP compared to HYP 1 h before VDA, pointing toward the absence of a "trapping" mechanism. In DMXAA-treated and not in ZD6126-treated tumors, spotty fluorescence was observed which is likely to be a consequence of neutrophil phagocytosis. Dexamethasone treatment neither did influence this phenomenon nor did change HYP uptake in necrotic tumor.

conclusionsWe conclude that HYP accumulation is optimal when it is administered after VDA injection. We also found that HYP accumulation in necrosis is not changed when using VDAs with different working mechanisms. This insight provides a rationale for tumor necrosis therapy (TNT) using iodine-131-labeled hypericin ([(131)I]-HYP) in combination with VDAs.

Indexed as

AnimalsAnthracenesAntineoplastic AgentsCell Line, TumorMiceMice, Inbred C3HNecrosisNeoplasmsNeovascularization, PathologicOrganophosphorus CompoundsPeryleneTelomere-Binding ProteinsXanthonesAnthracenesAntineoplastic AgentshypericinN-acetylcochinol-O-phosphateOrganophosphorus CompoundsPeryleneRif1 protein, mouseTelomere-Binding ProteinsvadimezanXanthones

Identifiers

PMID21858709
PMCPMC11827781
OpenAlexW1994575068

What OpenQuestion holds

Textmetadata
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.