Evidence map›Paper›PMID 15879625›Full record

ArticleInternational journal of gastrointestinal cancer2005

Biological similarities and differences between pancreatic intraepithelial neoplasias and intraductal papillary mucinous neoplasms.

Toshiyuki Moriya, Wataru Kimura, Shuho Semba, Fumiaki Sakurai, Ichiro Hirai, Jinfeng Ma, Akira Fuse, Kunihiko Maeda, Mitsunori Yamakawa

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in International journal of gastrointestinal cancer, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Cross-species antibody microarray interrogation identifies a 3-protein panel of plasma biomarkers for early diagnosis of pancreas cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2015
    Article
  7. Article
  8. Genome-wide CpG island profiling of intraductal papillary mucinous neoplasms of the pancreas.Clinical cancer research : an official journal of the American Association for Cancer Research · 2012
    Article
  9. Cystic precursors to invasive pancreatic cancer.Nature reviews. Gastroenterology & hepatology · 2011
    Review
  10. High-throughput mutation profiling in intraductal papillary mucinous neoplasm (IPMN).Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2011
    Article
  11. Article
  12. Article
  13. 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.

Toshiyuki MoriyaFirst Department of Surgery, Yamagata University School of Medicine, Yamagata, Japan.
Wataru Kimura
Shuho Semba
Fumiaki Sakurai
Ichiro Hirai
Jinfeng Ma
Akira Fuse
Kunihiko Maeda
Mitsunori Yamakawa

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEver since the classification of pancreatic intraepithelial neoplasia (PanIN) was published, studies on the precursor lesions of pancreatic cancer have been advancing along a new directions, using standardized terminology. There are few studies that have examined the biological differences between PanIN and intraductal papillary mucinous neoplasm (IPMN) in detail.

aimsPanIN and IPMN, which are similar in morphology, were compared using various indicators, with the aim of identifying the similarities and differences between the two. METHODOLOGY: A total of 46 PanINs and 37 ducts with IPMN were identified in 19 patients with invasive ductal carcinoma and 18 patients with IPMN. These PanINs and IPMNs were examined immunohistologically with respect to the expression patterns of HER2/neu, DPC4/Smad4, Akt/PKB, p53, cyclin A, Ki67, MUC1, and MUC2.

resultsSignificant differences in the expression of MUC1 and MUC2 were observed between IPMNadenoma and PanIN-2 and between CIS and PanIN-3 (MUC1: p = 0.001 and p = 0.005, respectively; MUC2: p = 0.002 and p < 0.001, respectively). A significant difference in the p53 expression level was also observed between CIS and PanIN-3 (p = 0.015).

conclusionsIn both IPMN and PanIN, the grade of atypism increased with increasing expression of HER2/neu, DPC4/Smad4, and Akt/PKB, along with progression in the process of multistage carcinogenesis. Although the expression levels of these factors reflected the grade of atypism, they did not reflect any differences in the grade of biological malignancy between IPMN and PanIN. On the other hand, MUC1 and MUC2 may serve as indicators of the direction of differentiation, i.e., either progression to IDAC or IPMN. Positivity for MUC1 was believed to suggest differentiation into IDAC, and positivity for MUC2 appeared to be indicative of differentiation into IPMN. Such indication of the direction of differentiation seemed to appear in PanIN1-2, even before abnormalities of HER2/neu, Akt/PKB, DPC4/Smad4, p53, and cyclin A expression began to be detected.

Indexed as

Gene Expression ProfilingAgedBile Duct NeoplasmsCarcinoma in SituCarcinoma, PapillaryFemaleGene Expression Regulation, NeoplasticHumansImmunohistochemistryMaleMiddle AgedPancreatic Neoplasms

Identifiers

PMID15879625

What OpenQuestion holds

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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.