Evidence map›Paper›PMID 17360539›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Beta cell transdifferentiation does not contribute to preneoplastic/metaplastic ductal lesions of the pancreas by genetic lineage tracing in vivo.

Oliver Strobel, Yuval Dor, Amy Stirman, Amanda Trainor, Carlos Fernández-del Castillo, Andrew L Warshaw, Sarah P Thayer

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
8.5field-weighted citation impact, top 2% 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

29 citing papers in PubMed, 57 citations in OpenAlex.

  1. Review
  2. Frontiers in genetics · 2024
    Article
  3. Review
  4. Review
  5. Acinar cell plasticity and development of pancreatic ductal adenocarcinoma.Nature reviews. Gastroenterology & hepatology · 2017
    Review
  6. β-cell replacement sources for type 1 diabetes: a focus on pancreatic ductal cells.Therapeutic advances in endocrinology and metabolism · 2016
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. From tissue turnover to the cell of origin for pancreatic cancer.Nature reviews. Gastroenterology & hepatology · 2011
    Review
  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

7 authors at 2 institutions in 1 country.

Oliver StrobelDepartment of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.
Yuval Dor
Amy Stirman
Amanda Trainor
Carlos Fernández-del Castillo
Andrew L Warshaw
Sarah P Thayer
Harvard University · USMassachusetts General Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inflammatory injury to the pancreas results in regeneration of normal tissue and formation of metaplastic lesions of a ductal phenotype. These metaplastic ductal lesions (MDL) are called tubular complexes (TC), mucinous metaplasia, or pancreatic intraepithelial neoplasia. Because they are regularly found in chronic pancreatitis and pancreatic cancer, their formation is thought to represent a step in inflammation-mediated carcinogenesis. Despite these lesions' ductal character, their origin is controversial. All known pancreatic cell lineages have been suggested as the origin. In vitro studies suggest that differentiated cells in the pancreas remain highly plastic and can transdifferentiate as a mechanism of regeneration and metaplasia. In vivo studies suggest that islets, specifically beta cells, may be the cell of origin. However, in vitro studies are subject to ductal cell contamination, and previous in vivo studies interpret static data rather than direct evidence. Using genetic lineage tracing in vivo, we investigate whether transdifferentiation of beta cells contributes to regeneration or metaplasia in pancreatitis. RIP-CreER;Z/AP mice were used to heritably tag beta cells in the adult pancreas. Injury by cerulein pancreatitis resulted in regeneration of normal tissue and metaplasia with formation of two distinct types of TC and mucinous lesions. Lineage tracing revealed that none of these MDL are of beta cell origin; nor do beta cells contribute to regeneration of normal acinar and ductal tissue, which indicates that the plasticity of differentiated pancreatic islet cells, suggested by earlier static and in vitro studies, plays no role in regeneration, metaplasia, and carcinogenesis in vivo.

Indexed as

AnimalsCell BiologyCell DifferentiationCell LineageEpithelial CellsGenotypeInflammationInsulin-Secreting CellsMetaplasiaMicePancreas, ExocrinePancreatic NeoplasmsRegeneration

Identifiers

PMID17360539
PMCPMC1815470
OpenAlexW1995027351

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.