Evidence map›Paper›PMID 25398664›Full record

ArticleClinical and experimental medicine2015

Epidermal growth factor receptor-coamplified and overexpressed protein (VOPP1) is a putative oncogene in gastric cancer.

Caiping Gao, Minghui Pang, Zhou Zhou, Size Long, Dandan Dong, Jiyun Yang, Mei Cao, Chumin Zhang, Shengxi Han, Liangping Li

Abstract read
PubMed Publisher
In one paragraph

Article in Clinical and experimental medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.4field-weighted citation impact, top 35% 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

18 citing papers in PubMed, 21 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

10 authors at 1 institution in 1 country.

Caiping GaoDepartment of Gastroenterology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, No. 32 Xierduan, Chengdu, 610072, Sichuan Province, China.
Minghui PangDepartment of Gastrointestinal Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China.
Zhou ZhouDepartment of Gastroenterology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, No. 32 Xierduan, Chengdu, 610072, Sichuan Province, China.
Size LongDepartment of Gastroenterology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, No. 32 Xierduan, Chengdu, 610072, Sichuan Province, China.
Dandan DongDepartment of Pathology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China.
Jiyun YangCenter for Human Molecular Biology and Genetics, The Institute of Laboratory Medicine, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China.
Mei CaoCentralab, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China.
Chumin ZhangDepartment of Gastroenterology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, No. 32 Xierduan, Chengdu, 610072, Sichuan Province, China.
Shengxi HanDepartment of Gastroenterology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, No. 32 Xierduan, Chengdu, 610072, Sichuan Province, China.
Liangping LiDepartment of Gastroenterology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, No. 32 Xierduan, Chengdu, 610072, Sichuan Province, China. liangpingl@yahoo.com.
Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

MicroRNAs are found to play an important role in gastric cancer. Reduced expression of microRNA-218 (miR-218) is of key interest. The target gene of microRNA-218, epidermal growth factor receptor-coamplified and overexpressed protein (ECOP) encoded by the VOPP1 gene, has been implicated in tumorigenesis. However, few studies on expression and function of ECOP in gastric cancer have been reported. ECOP expression was determined in matched normal and gastric adenocarcinoma tissue specimens by immunohistochemistry and western blot. Subsequently, ectopic overexpression and RNAi-mediated silencing of VOPP1 was effected in the human gastric cancer cell line, AGS. Proliferation and migration of parental, VOPP1 overexpressing and VOPP1-silenced AGS cells were evaluated by cell proliferation assay and scratch wound-healing motility assay. Finally, intracellular localization of ECOP in AGS cells was assessed by green fluorescent protein tagging and fluorescent microscopy. Western blot and immunohistochemistry showed overexpression of ECOP in gastric adenocarcinoma tissues compared to matched normal tissue specimens. Ectopic overexpression and RNAi-mediated silencing of VOPP1 promoted and inhibited, respectively, cell proliferation and migration in AGS cells. Intracellular localization of ECOP in perinuclear lysosomes mimicked colocalization earlier reported for other cancerous cells. VOPP1 is overexpressed in gastric adenocarcinoma, which is involved in promoting cell proliferation and migration and thus might serve as a putative oncogene.

Indexed as

AdenocarcinomaBiomarkers, TumorBlotting, WesternCell Line, TumorCell MovementCell ProliferationGene Expression ProfilingHumansImmunohistochemistryOncogene ProteinsStomach NeoplasmsTranscription FactorsBiomarkers, TumorOncogene ProteinsTranscription FactorsVOPP1 protein, humanECOPGastric cancerLysosomesMigrationProliferation

Identifiers

PMID25398664
OpenAlexW2146782028

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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.