Evidence map›Paper›PMID 18223216›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2008

Absence of E-cadherin expression distinguishes noncohesive from cohesive pancreatic cancer.

Jordan M Winter, Angela H Ting, Felip Vilardell, Eike Gallmeier, Steve B Baylin, Ralph H Hruban, Scott E Kern, Christine A Iacobuzio-Donahue

Open access · bronzeAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

70 citing papers in PubMed, 151 citations in OpenAlex.

  1. Trial
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  9. Article
  10. microRNA-21 Regulates Stemness in Pancreatic Ductal Adenocarcinoma Cells.International journal of molecular sciences · 2022
    Article
  11. Cadherin Signaling in Cancer and Autoimmune Diseases.International journal of molecular sciences · 2021
    Review
  12. Review
  13. Role of Cadherins in Cancer-A Review.International journal of molecular sciences · 2020
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Review
  20. Review

10 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 1 country.

Jordan M WinterDepartment of Oncology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA.
Angela H Ting
Felip Vilardell
Eike Gallmeier
Steve B Baylin
Ralph H Hruban
Scott E Kern
Christine A Iacobuzio-Donahue
Cancer Research Center · USJohns Hopkins Medicine · US

Funding

Tumor Antigens for Individual Signatures and TherapyP50CA062924 · NCI · JOHNS HOPKINS UNIVERSITY · PI LENNON, ANNE MARIE · 1993 to 2022
$54.6M
Clinical and Laboratory Research Training for Gastrointestinal SurgeonsT32DK007713 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI DAVID J HACKAM · 1996 to 2026
$5.2M
NCI NIH HHS CA62924NCI NIH HHS P50 CA062924NIDDK NIH HHS T32 DK007713
6 · The paper itself

Abstract

purposeThe role of E-cadherin in carcinogenesis is of great interest, but few studies have examined its relevance to pancreatic carcinoma. EXPERIMENTAL

designWe evaluated E-cadherin protein expression by immunohistochemistry in pancreatobiliary cancers having a noncohesive histologic phenotype (21 undifferentiated adenocarcinomas and 7 signet ring carcinomas), comparing the results with pancreatic cancers having a cohesive phenotype (25 moderately differentiated and 14 poorly differentiated adenocarcinomas).

resultsTwenty of 21 undifferentiated cancers had complete absence of E-cadherin expression, as did two signet ring carcinomas. In contrast, cohesive cancers (n = 39) had E-cadherin labeling at the plasma membrane (P < 0.001). Subsets of cancers were also evaluated for beta-catenin expression. All of the cohesive lesions (n = 28) showed a membranous beta-catenin expression pattern, whereas noncohesive foci (n = 7) were characterized by either cytoplasmic labeling or complete absence of beta-catenin protein expression, suggestive of a deficient zonula adherens in noncohesive cancers. E-cadherin promoter hypermethylation was observed in an undifferentiated pancreatic cancer cell line, MiaPaCa-2, whereas two pancreatic cancer cell lines derived from differentiated lesions lacked any evidence of E-cadherin promoter methylation. No pattern of E-cadherin promoter methylation could be determined in three primary cancers having mixed histologic patterns (contained both cohesive and noncohesive foci). No somatic mutations in E-cadherin were identified in noncohesive pancreatic cancers having inactivated E-cadherin.

conclusionsNoncohesive pancreatic cancers were characterized by the loss of E-cadherin protein expression. Promoter hypermethylation is a possible mechanism of E-cadherin gene silencing in a subset of these cancers.

Indexed as

beta CateninCadherinsCarcinoma, Signet Ring CellDNA MethylationEpigenesis, GeneticGene Expression Regulation, NeoplasticHumansPancreatic NeoplasmsPromoter Regions, Geneticbeta CateninCadherins

Identifiers

PMID18223216
PMCPMC3810144
OpenAlexW2157747088

What OpenQuestion holds

Textmetadata
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.