Evidence map›Paper›PMID 27499181›Full record

ArticleOncology reports2016

PTK7 overexpression in colorectal tumors: Clinicopathological correlation and prognosis relevance.

Xiuyun Tian, Liang Yan, Donghai Zhang, Xiaoya Guan, Bin Dong, Min Zhao, Chunyi Hao

Open access · hybridAbstract read
In one paragraph

Article in Oncology reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 36 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

7 authors at 3 institutions in 1 country.

Xiuyun TianKey Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital and Institute, Beijing, P.R. China.
Liang YanKey Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital and Institute, Beijing, P.R. China.
Donghai ZhangDepartment of Gastroenterology, Daxing Hospital Affiliated to Capital University of Medical Sciences, Beijing, P.R. China.
Xiaoya GuanKey Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital and Institute, Beijing, P.R. China.
Bin DongKey Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Central Laboratory, Peking University Cancer Hospital and Institute, Beijing, P.R. China.
Min ZhaoKey Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Department of Pathology, Peking University Cancer Hospital and Institute, Beijing, P.R. China.
Chunyi HaoKey Laboratory of Carcinogenesis and Translational Research, Ministry of Education/Beijing, Department of Hepato-Pancreato-Biliary Surgery, Peking University Cancer Hospital and Institute, Beijing, P.R. China.
Peking University Cancer Hospital · CNPeking University · CNCapital Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Colorectal cancer (CRC) has one of the highest mortality rates in the worldwide and its incidence has been increasing in recent years. Protein tyrosine kinase-7 (PTK7) is an inactive member of receptor protein tyrosine kinase (RPTK)-like molecules, which is involved in tumorigenesis of a variety of cancers. Our study aimed to investigate expression of PTK7 in colorectal tumors (including benign adenomas and malignant carcinomas), and its potential function in tumorigenesis and prognosis. A total of 209 CRC patients and 28 colonic adenoma patients were included in this study. Reverse transcription polymerase chain reaction (RT-PCR) and quantitative real-time PCR were performed in 14 pairs of fresh frozen tissues to evaluate mRNA expression of PTK7. Expression of PTK7 protein in 209 CRC tissues with paired non-cancerous mucosa and 28 adenoma specimens were tested using immunohistochemistry. The expression difference and its correlation with clinicopathological features and overall survival were assessed by SPSS statistics (version 22). P<0.05 was considered significant. RT-PCR and quantitative real-time PCR showed a higher expression of PTK7 mRNA in CRC compared with non-tumorous mucosa (4.87±3.71 vs. 1.33±1.05; P<0.001). PTK7 expression was significantly higher in adenoma (75%) and CRC (68.3%) than in non-tumorous mucosa (P<0.001). PTK7 expression was correlated with tumor differentiation (P=0.027), lymph node metastasis (P=0.005), distant metastasis (P=0.001) and TNM stage (P=0.028) of CRC patients. Significant correlation between PTK7 overexpression and favorable overall survival of CRC patients was observed (P=0.005). Therefore, it may act as a candidate biomarker to predict the occurrence and prognosis of colorectal tumor.

Indexed as

AdenocarcinomaAdenomaAdultAgedBiomarkers, TumorCell Adhesion MoleculesColorectal NeoplasmsFemaleHumansImmunohistochemistryKaplan-Meier EstimateMaleMiddle AgedPolymerase Chain ReactionPrognosisProportional Hazards ModelsBiomarkers, TumorCell Adhesion MoleculesPTK7 protein, humanReceptor Protein-Tyrosine Kinases

Identifiers

PMID27499181
PMCPMC5022898
OpenAlexW2476795335

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.