Evidence map›Paper›PMID 25986931›Full record

Trial reportWorld journal of surgical oncology2015

A comprehensive analysis of phosphatase and tensin homolog deleted on chromosome 10 (PTEN) loss in colorectal cancer.

Pei-Ching Lin, Jen-Kou Lin, Hung-Hsin Lin, Yuan-Tzu Lan, Chun-Chi Lin, Shung-Haur Yang, Wei-Shone Chen, Wen-Yi Liang, Jeng-Kai Jiang, Shih-Ching Chang

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in World journal of surgical oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 8% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Cancers · 2023
    Review
  8. Aging · 2023
    Article
  9. Review
  10. SALL4 Oncogenic Function in Cancers: Mechanisms and Therapeutic Relevance.International journal of molecular sciences · 2022
    Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Review
  16. Precise Immunodetection of PTEN Protein in Human Neoplasia.Cold Spring Harbor perspectives in medicine · 2019
    Review
  17. Review
  18. Article
  19. Article
  20. Article
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 3 institutions in 1 country.

Pei-Ching LinDepartment of Clinical Pathology, Yang-Ming Branch, Taipei City Hospital, Taipei, Taiwan. b7901127@tmu.edu.tw.
Jen-Kou LinDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. jklin@vghtpe.gov.tw.
Hung-Hsin LinDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. hhlin7@vghtpe.gov.tw.
Yuan-Tzu LanDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. ytlan@vghtpe.gov.tw.
Chun-Chi LinDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. cclin15@vghtpe.gov.tw.
Shung-Haur YangDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. yangsh@vghtpe.gov.tw.
Wei-Shone ChenDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. wschen@vghtpe.gov.tw.
Wen-Yi LiangFaculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan. wyliang@vghtpe.gov.tw.
Jeng-Kai JiangDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. jkjiang@vghtpe.gov.tw.
Shih-Ching ChangDivision of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, No.201, 2nd section, ShiPai Road, Taipei, Taiwan. changsc@vghtpe.gov.tw.
National Yang Ming Chiao Tung University · TWNational Yang Ming University Hospital · TWTaipei City Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlterations of PTEN, regulator of the PTEN/PI3K-AKT pathway, are common in several types of cancer. This study aimed to do comprehensive analysis of PTEN in colorectal cancer patients.

methodsTotally, 198 colorectal cancer patients who received surgery at Taipei Veterans General Hospital from 2006 to 2008 were enrolled. Mutations, loss of protein expression, promoter hypermethylation, and DNA copy number of PTEN were analyzed by sequencing, immunohistochemistry, methylation-specific polymerase chain reaction PCR, and quantitative (QPCR), respectively, and correlated with clinicopathological features and patients' outcome.

resultsGenomic mutations, loss of protein expression, promoter hypermethylation, and decreased DNA copy number of PTEN were found in 4 (2.02 %), 68 (34.3 %), 54 (27.3 %), and 36 (18.2 %) tumors, respectively. Of these 68 tumors with loss expression of PTEN, 34 (50 %) tumors had promoter methylation and 18 (26.5 %) had decreased DNA copy number. All four tumors with PTEN mutations demonstrated loss of PTEN expression. In the stage I disease, frequency of loss of PTEN expression was 20 % and significantly increased to 56.9 % in stage IV disease. Either loss expression of PTEN, PTEN hypermethylation or decreased PTEN copy number was not associated with colorectal cancer (CRC) patients' outcome.

conclusionsPTEN alterations were found in up to one-third of colorectal cancers but did not impact CRC patients' prognosis.

Indexed as

AdultAgedAged, 80 and overColorectal NeoplasmsDNA Copy Number VariationsDNA MethylationDNA Mutational AnalysisDNA, NeoplasmFemaleHumansImmunohistochemistryMaleMiddle AgedPolymerase Chain ReactionPTEN PhosphohydrolaseSequence Analysis, DNADNA, NeoplasmPTEN PhosphohydrolasePTEN protein, human

Identifiers

PMID25986931
PMCPMC4489205
OpenAlexW1812191961

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.