Evidence map›Paper›PMID 24885408›Full record

ArticleMolecular cancer2014

Vasohibin-2 modulates tumor onset in the gastrointestinal tract by normalizing tumor angiogenesis.

Shuji Kitahara, Yasuhiro Suzuki, Masae Morishima, Asuka Yoshii, Sachiko Kikuta, Kazuhiko Shimizu, Shunichi Morikawa, Yasufumi Sato, Taichi Ezaki

Abstract read
In one paragraph

Article in Molecular cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
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

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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

22 citing papers in PubMed.

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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.

Shuji Kitahara
Yasuhiro Suzuki
Masae Morishima
Asuka Yoshii
Sachiko Kikuta
Kazuhiko Shimizu
Shunichi Morikawa
Yasufumi Sato
Taichi EzakiDepartment of Anatomy and Developmental Biology, School of Medicine, Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666, Japan. ezakit@research.twmu.ac.jp.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVasohibin-2 (VASH2) has been identified as an endogenous and vascular endothelial growth factor (VEGF)-independent angiogenic factor that is highly expressed in tumor cells. In the present study, we aimed to determine whether pre-existing vascular changes can be used to predict tumor transformation as benign or malignant. We sought to characterize microvascular changes and tumor development in the intestinal tract of ApcMin/+ mice and ApcMin/+/Vash2-/- mice.

methodsApcMin/+ mice provide a unique orthotopic model for the development of spontaneous adenomatous polyposis and subsequent carcinomas, a phenomenon termed the adenoma-carcinoma sequence. ApcMin/+ mice were mated with Vash2-/- mice with a mixed C57BL/6 background and the resulting pups were screened for the Min mutation and for the Vash2-/- gene by PCR. Intestinal tumors from ApcMin/+ mice and ApcMin/+/Vash2-/- mice were removed and either frozen or epon-embedded for subsequent analyses. For 3-dimensional imaging using confocal laser-scanning microscopy and transmission electron microscopy, cryosections were made, and immunofluorescent staining for various markers was performed.

resultsWe found that structural abnormalities in tumor vessels from benign tumors resembled those in malignant tumors. In addition, a novel angiogenic factor, vasohibin-2 (VASH2) protein, was detected around tumor blood vessels in late-stage adenomas and adenocarcinomas, but was absent from early-stage adenomas in ApcMin/+ mice. Tumors used to examine endogenous VASH2 (derived from CMT93 colon carcinomas) were less vascularized in Vash2-/- mice and were more regular than those seen in wild-type (WT) mice. In addition, tumors in Vash2-/- mice were smaller than those in WT mice. Furthermore, cross-breeding of mice homozygous for a deletion of Vash2 with mice heterozygous for the APC mutation resulted in animals that showed a significant decrease in the number of polyps in the small intestine.

conclusionWe propose that VASH2 may modulate the onset of tumors in the gastrointestinal tract by regulating tumor angiogenesis.

Indexed as

Gene Expression Regulation, NeoplasticAdenomatous Polyposis ColiAdenomatous Polyposis Coli ProteinAngiogenic ProteinsAnimalsBlood VesselsCarcinogenesisCrosses, GeneticDisease ProgressionFemaleGastrointestinal TractMaleMiceMice, Inbred C57BLMice, TransgenicNeovascularization, PathologicAdenomatous Polyposis Coli ProteinAngiogenic ProteinsVASH2 protein, mouse

Identifiers

PMID24885408
PMCPMC4113181

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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.