Evidence map›Paper›PMID 21448164›Full record

ArticleBritish journal of cancer2011

CpG-island methylation study of liver fluke-related cholangiocarcinoma.

R Sriraksa, C Zeller, M A El-Bahrawy, W Dai, J Daduang, P Jearanaikoon, S Chau-In, R Brown, T Limpaiboon

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
2.5field-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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Cholangiocarcinoma and liver transplantation: What we know so far?World journal of gastrointestinal pathophysiology · 2021
    Review
  8. Review
  9. Article
  10. PeerJ · 2018
    Article
  11. Review
  12. Article
  13. Article
  14. Diagnostic and therapeutic biomarkers in pancreaticobiliary malignancy.World journal of gastrointestinal endoscopy · 2016
    Review
  15. Article
  16. DNA methylation level of OPCML and SFRP1: a potential diagnostic biomarker of cholangiocarcinoma.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
  17. Article
  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

9 authors at 2 institutions in 2 countries.

R SriraksaGraduate School, Khon Kaen University, Khon Kaen 40002, Thailand.
C Zeller
M A El-Bahrawy
W Dai
J Daduang
P Jearanaikoon
S Chau-In
R Brown
T Limpaiboon
Khon Kaen University · THHammersmith Hospital · GB

Funding

Cancer Research UK 13086
6 · The paper itself

Abstract

backgroundGenetic changes have been widely reported in association with cholangiocarcinoma (CCA), while epigenetic changes are poorly characterised. We aimed to further evaluate CpG-island hypermethylation in CCA at candidate loci, which may have potential as diagnostic or prognostic biomarkers.

methodsWe analysed methylation of 26 CpG-islands in 102 liver fluke related-CCA and 29 adjacent normal samples using methylation-specific PCR (MSP). Methylation of interest loci was confirmed using pyrosequencing and/or combined bisulfite restriction analysis, and protein expression by immunohistochemistry.

resultsA number of CpG-islands (OPCML, SFRP1, HIC1, PTEN and DcR1) showed frequency of hypermethylation in >28% of CCA, but not adjacent normal tissues. The results showed that 91% of CCA were methylated in at least one CpG-island. The OPCML was the most frequently methylated locus (72.5%) and was more frequently methylated in less differentiated CCA. Patients with methylated DcR1 had significantly longer overall survival (Median; 41.7 vs 21.7 weeks, P=0.027). Low-protein expression was found in >70% of CCA with methylation of OPCML or DcR1.

conclusionAberrant hypermethylation of certain loci is a common event in liver fluke-related CCA and may potentially contribute to cholangiocarcinogenesis. The OPCML and DcR1 might serve as methylation biomarkers in CCA that can be readily examined by MSP.

Indexed as

Bile Ducts, IntrahepaticDNA MethylationAgedAnimalsBile Duct NeoplasmsCase-Control StudiesCholangiocarcinomaCpG IslandsEpigenomicsFasciola hepaticaFascioliasisFemaleHumansMaleMiddle Aged

Identifiers

PMID21448164
PMCPMC3078588
OpenAlexW1980226468

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.