Evidence map›Paper›PMID 19040718›Full record

ArticleBMC cancer2008

Expression of the RON receptor tyrosine kinase and its association with gastric carcinoma versus normal gastric tissues.

Donghui Zhou, Gang Pan, Chen Zheng, Jingjing Zheng, Liping Yian, Xiaodong Teng

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2008. 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
1.4field-weighted citation impact, top 18% of its field
1 · What the graph read from it

What it found

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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, 67 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

6 authors at 2 institutions in 1 country.

Donghui ZhouDepartment of oncology, The First Affiliated Hospital of College of Medicine of Zhejiang University, Hangzhou, PR China. zdh19838@hotmail.com
Gang Pan
Chen Zheng
Jingjing Zheng
Liping Yian
Xiaodong Teng
Zhejiang University · CNLishui Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecepteur d'origine nantais (RON) is a receptor tyrosine kinase that is activated by a serum-derived, macrophage stimulating protein (MSP) growth factor and is expressed in many malignant tumors. The aim of the present study was to reveal the protein expression profile of RON and its relationship with clinicopathological characteristics of gastric carcinoma and prognosis.

methodsGastric carcinoma tissue from 98 patients, along with 29 specimens of paraneoplastic tissue and 10 specimens of normal gastric mucosa, were examined by immunohistochemistry (IHC). Western blot analysis of 19 samples of gastric carcinoma tissue and corresponding paraneoplastic tissue, 8 specimens of normal gastric mucosa, and 2 specimens of normal lymph node samples also detected expression of a splice variant of RON, RONDelta165. All samples obtained were accompanied by patient follow-up data that ranged from 3 to 89 months (median time: 22 months).

resultsThe rate of positive RON expression differed significantly between gastric carcinoma tissues [56.1%, (55/98)] and paraneoplastic tissues [25.6%, (8/29)] (p = 0.007). In contrast, RON expression was absent in normal gastric mucosa samples. RON expression positively correlated with the invasive depth of the tumor (p = 0.019), perigastric lymph nodes metastasis (p = 0.019), and TNM stage (p = 0.001). However, RON expression was independent of tumor growth pattern according to Bormann criteria (p = 0.209), histopathological grade (p = 0.196), and incidence of distant metastasis (p = 0.400). RON expression was not related to a patient's survival rate (p = 0.195). RONDelta165 was strongly expressed in fresh gastric carcinoma tissue, corresponding paraneoplastic tissue, and perigastric lymph nodes with metastatic carcinoma. In contrast, expression of RONDelta165 was not observed in normal gastric mucosa and normal lymph node tissue samples.

conclusionRON expression is significant in gastric carcinoma tissue and corresponding paraneoplastic tissue, but is not expressed in normal gastric mucosa. Expression of RONDelta165 was similarly observed in gastric carcinoma tissue and in metastases present in lymph node tissues. We hypothesize that RON and its splice variant play an important role in the occurrence, progression, and metastasis of gastric carcinoma, and therefore may represent a useful marker to evaluate the biological activity of gastric carcinoma.

Indexed as

AdenocarcinomaAdultAgedBlotting, WesternFemaleGastric MucosaHumansImmunohistochemistryKaplan-Meier EstimateLymphatic MetastasisLymph NodesMaleMiddle AgedNeoplasm StagingProtein IsoformsReceptor Protein-Tyrosine KinasesProtein IsoformsReceptor Protein-Tyrosine KinasesRON protein

Identifiers

PMID19040718
PMCPMC2629483
OpenAlexW2051127850

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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.