Evidence map›Paper›PMID 20042640›Full record

ArticleCarcinogenesis2010

Hypoxia activates the cyclooxygenase-2-prostaglandin E synthase axis.

James J Lee, Mitsuteru Natsuizaka, Shinya Ohashi, Gabrielle S Wong, Munenori Takaoka, Carmen Z Michaylira, Daniela Budo, John W Tobias, Michiyuki Kanai, Yasuhiro Shirakawa and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Carcinogenesis, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 7% 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

67 citing papers in PubMed, 1 synthesis or guideline pooled it, 124 citations in OpenAlex.

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7 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

14 authors at 6 institutions in 2 countries.

James J LeeGastroenterology Division, Department of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
Mitsuteru Natsuizaka
Shinya Ohashi
Gabrielle S Wong
Munenori Takaoka
Carmen Z Michaylira
Daniela Budo
John W Tobias
Michiyuki Kanai
Yasuhiro Shirakawa
Yoshio Naomoto
Andres J P Klein-Szanto
Volker H Haase
Hiroshi Nakagawa
University of Pennsylvania · USUniversity Gastroenterology · USOkayama University · JPFox Chase Cancer Center · USKitano Hospital · JPVanderbilt University · US

Funding

Transformed Esophageal Epithelial Cells and the Tumor MicroenvironmentP01CA098101 · NCI · UNIVERSITY OF PENNSYLVANIA · PI RUSTGI, ANIL K · 2003 to 2023
$31.7M
The molecular regulation of IGFBP-3 in esophageal epthelial cellsR01DK077005 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI NAKAGAWA, HIROSHI · 2007 to 2011
$1.3M
Hypoxia VHL nad HIF in Renal Tumor DevelopmentR01CA100787 · NCI · VANDERBILT UNIVERSITY · PI HAASE, VOLKER HANS · 2004 to 2008
$1.3M
Regulation of esophageal epithelial biologyK01DK066205 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI NAKAGAWA, HIROSHI · 2005 to 2007
$402k
NCI NIH HHS P01 CA098101NCI NIH HHS P01-CA-098101NCI NIH HHS R01 CA100787NIDDK NIH HHS K01-DK-06205NIDDK NIH HHS K01 DK066205NIDDK NIH HHS R01 DK077005NIDDK NIH HHS R01DK077005
6 · The paper itself

Abstract

Hypoxia-inducible factors (HIFs), in particular HIF-1alpha, have been implicated in tumor biology. However, HIF target genes in the esophageal tumor microenvironment remain elusive. Gene expression profiling was performed upon hypoxia-exposed non-transformed immortalized human esophageal epithelial cells, EPC2-hTERT, and comparing with a gene signature of esophageal squamous cell carcinoma (ESCC). In addition to known HIF-1alpha target genes such as carbonic anhydrase 9, insulin-like growth factor binding protein-3 (IGFBP3) and cyclooxygenase (COX)-2, prostaglandin E synthase (PTGES) was identified as a novel target gene among the commonly upregulated genes in ESCC as well as the cells exposed to hypoxia. The PTGES induction was augmented upon stabilization of HIF-1alpha by hypoxia or cobalt chloride under normoxic conditions and suppressed by dominant-negative HIF-1alpha. Whereas PTGES messenger RNA (mRNA) was negatively regulated by normoxia, PTGES protein remained stable upon reoxygenation. Prostaglandin E(2) (PGE(2)) biosynthesis was documented in transformed human esophageal cells by ectopic expression of PTGES as well as RNA interference directed against PTGES. Moreover, hypoxia stimulated PGE(2) production in a HIF-1alpha-dependent manner. In ESCC, PTGES was overexpressed frequently at the mRNA and protein levels. Finally, COX-2 and PTGES were colocalized in primary tumors along with HIF-1alpha and IGFBP3. Activation of the COX-2-PTGES axis in primary tumors was further corroborated by concomitant upregulation of interleukin-1beta and downregulation of hydroxylprostaglandin dehydrogenase. Thus, PTGES is a novel HIF-1alpha target gene, involved in prostaglandin E biosynthesis in the esophageal tumor hypoxic microenvironment, and this has implications in diverse tumors types, especially of squamous origin.

Indexed as

Carcinoma, Squamous CellCell HypoxiaCell LineCobaltCyclooxygenase 2DinoprostoneEnzyme ActivationEpithelial CellsEsophageal NeoplasmsGene Expression ProfilingHumansHydroxyprostaglandin DehydrogenasesHypoxia-Inducible Factor 1, alpha SubunitInsulin-Like Growth Factor Binding Protein 3Insulin-Like Growth Factor Binding ProteinsInterleukin-1betaCobaltcobaltous chlorideCyclooxygenase 2DinoprostoneHIF1A protein, humanHydroxyprostaglandin DehydrogenasesHypoxia-Inducible Factor 1, alpha SubunitIGFBP3 protein, humanInsulin-Like Growth Factor Binding Protein 3Insulin-Like Growth Factor Binding ProteinsInterleukin-1betaIntramolecular OxidoreductasesNeoplasm ProteinsOxygenProstaglandin-E SynthasesPTGES protein, humanPTGS2 protein, humanRecombinant Fusion ProteinsRNA, MessengerRNA, NeoplasmRNA, Small Interfering

Identifiers

PMID20042640
PMCPMC2832548
OpenAlexW2123395644

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.