Evidence map›Paper›PMID 20959488›Full record

ArticleCancer research2010

K-ras mutation targeted to gastric tissue progenitor cells results in chronic inflammation, an altered microenvironment, and progression to intraepithelial neoplasia.

Tomoyuki Okumura, Russell E Ericksen, Shigeo Takaishi, Sophie S W Wang, Zinaida Dubeykovskiy, Wataru Shibata, Kelly S Betz, Sureshkuma Muthupalani, Arlin B Rogers, James G Fox and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
5.0field-weighted citation impact, top 5% 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

64 citing papers in PubMed, 86 citations in OpenAlex.

  1. Review
  2. Managing dangerous liaisons: lessons fromJournal of bacteriology · 2026
    Review
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  5. Article
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  10. Article
  11. Review
  12. Dynamic tuft cell expansion during gastric metaplasia and dysplasia.The journal of pathology. Clinical research · 2024
    Article
  13. Article
  14. Mouse models of Kras activation in gastric cancer.Experimental & molecular medicine · 2022
    Review
  15. Review
  16. Stem Cell Biomarkers and Tumorigenesis in Gastric Cancer.Journal of personalized medicine · 2022
    Review
  17. Article
  18. Article
  19. Review
  20. Review

4 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

12 authors at 4 institutions in 1 country.

Tomoyuki OkumuraDivision of Digestive and Liver Diseases, Columbia University Medical School, New York, New York, USA.
Russell E Ericksen
Shigeo Takaishi
Sophie S W Wang
Zinaida Dubeykovskiy
Wataru Shibata
Kelly S Betz
Sureshkuma Muthupalani
Arlin B Rogers
James G Fox
Anil K Rustgi
Timothy C Wang
Massachusetts Institute of Technology · USUniversity of North Carolina at Chapel Hill · USColumbia University · USUniversity of Pennsylvania · US

Funding

TRANSGENIC AND CHIMERIC MOUSE COREP30DK050306 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI Ken Hashigiwa Cadwell · 1997 to 2026
$32.5M
TOXICOLOGY CORE UNITP30ES002109 · NIEHS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI LEVINE, STUART S · 1985 to 2020
$25.6M
The Prrx-1 transcription factor in pancreatic ductal biologyR01DK060694 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI CHANDWANI, ROHIT, RUSTGI, ANIL K · 2002 to 2025
$8.3M
The Role of Inflammation and Stroma in Digestive CancerU54CA126513 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WANG, TIMOTHY CRAGIN · 2006 to 2010
$5.1M
Role of Inflamation in Mouse Models of Gastric CancerR01CA093405 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WANG, TIMOTHY CRAGIN · 2001 to 2016
$3.8M
Inflammation and the esophageal tumor microenvironmentU01CA143056 · NCI · UNIVERSITY OF PENNSYLVANIA · PI MAHMOOD, UMAR, RUSTGI, ANIL K · 2009 to 2013
$3.1M
Stem Cells and Gastric CancerR01CA120979 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WANG, TIMOTHY CRAGIN · 2006 to 2010
$2.3M
NCI NIH HHS 5R01 CA120979-02NCI NIH HHS R01 CA093405NCI NIH HHS R01 CA120979NCI NIH HHS U01 CA143056NCI NIH HHS U54 CA126513NIDDK NIH HHS P30 DK050306NIDDK NIH HHS R01 DK060694NIEHS NIH HHS P30 ES002109
6 · The paper itself

Abstract

Chronic infectious diseases, such as Helicobacter pylori infection, can promote cancer in a large part through induction of chronic inflammation. Oncogenic K-ras mutation in epithelial cells activates inflammatory pathways, which could compensate for a lack of infectious stimulus. Gastric histopathology and putative progenitor markers [doublecortin and calcium/calmodulin-dependent protein kinase-like 1 (Dcamkl1) and keratin 19 (K19)] in K19-K-ras-V12 (K19-kras) transgenic mice were assessed at 3, 6, 12, and 18 months of age, in comparison with Helicobacter felis-infected wild-type littermates. Inflammation was evaluated by reverse transcription-PCR of proinflammatory cytokines, and K19-kras mice were transplanted with green fluorescent protein (GFP)-labeled bone marrow. Both H. felis infection and K-ras mutation induced upregulation of proinflammatory cytokines, expansion of Dcamkl1(+) cells, and progression to oxyntic atrophy, metaplasia, hyperplasia, and high-grade dysplasia. K19-kras transgenic mice uniquely displayed mucous metaplasia as early as 3 months and progressed to high-grade dysplasia and invasive intramucosal carcinoma by 20 months. In bone marrow-transplanted K19-kras mice that progressed to dysplasia, a large proportion of stromal cells were GFP(+) and bone marrow-derived, but only rare GFP(+) epithelial cells were observed. GFP(+) bone marrow-derived cells included leukocytes and CD45(-) stromal cells that expressed vimentin or α smooth muscle actin and were often found surrounding clusters of Dcamkl1(+) cells at the base of gastric glands. In conclusion, the expression of mutant K-ras in K19(+) gastric epithelial cells can induce chronic inflammation and promote the development of dysplasia.

Indexed as

ActinsAnimalsBlotting, WesternBone Marrow TransplantationCarcinoma in SituCell ProliferationChemokinesCytokinesFlow CytometryFluorescent Antibody TechniqueGastric MucosaHelicobacter felisHelicobacter InfectionsHumansHyperplasiaImmunoenzyme TechniquesActinsChemokinesCytokinesKeratin-19KRAS protein, humanProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsRNA, Messenger

Identifiers

PMID20959488
PMCPMC2970750
OpenAlexW2150389129

What OpenQuestion holds

Textmetadata
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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.