Evidence map›Paper›PMID 19625175›Full record

ArticleProstaglandins, leukotrienes, and essential fatty acids2009

The EP1 subtype of prostaglandin E2 receptor: role in keratinocyte differentiation and expression in non-melanoma skin cancer.

R L Konger, S D Billings, N C Prall, T M Katona, S C Dasilva, C R J Kennedy, S Badve, S M Perkins, P T Lacelle

Open access · greenAbstract read
In one paragraph

Article in Prostaglandins, leukotrienes, and essential fatty acids, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

8 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
  2. Review
  3. Prostaglandin E2 receptor EP1 expression in vulvar cancer.Journal of cancer research and clinical oncology · 2023
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. 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 at 4 institutions in 2 countries.

R L KongerDepartment of Pathology & Laboratory Medicine, Indiana University School of Medicine, 1120 South Drive, Fesler Hall 403, Indianapolis, IN 46202, USA. rkonger@iupui.edu
S D Billings
N C Prall
T M Katona
S C Dasilva
C R J Kennedy
S Badve
S M Perkins
P T Lacelle
Indiana University – Purdue University Indianapolis · USIndiana University School of MedicineUniversity of Ottawa · CAUniversity of Rochester · US

Funding

ROLE OF PGE2 RECEPTORS EP2 AND EP3 ON SENESCENCEK08AR002150 · NIAMS · UNIVERSITY OF ROCHESTER · PI KONGER, RAYMOND L · 2000 to 2004
$617k
Role of PPARgamma in ultraviolet stress responsesR03AR053710 · NIAMS · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI KONGER, RAYMOND L · 2007 to 2008
$150k
NIAMS NIH HHS K08 AR002150NIAMS NIH HHS R03 AR053710
6 · The paper itself

Abstract

We have previously demonstrated that the EP1 subtype of PGE2 receptor is expressed in the differentiated compartment of normal human epidermis and is coupled to intracellular calcium mobilization. We therefore hypothesized that the EP1 receptor is coupled to keratinocyte differentiation. In in vitro studies, radioligand binding, RT-PCR, immunoblot and receptor agonist-induced second messenger studies demonstrate that the EP1 receptor is up-regulated by high cell density in human keratinocytes and this up-regulation precedes corneocyte formation. Moreover, two different EP1 receptor antagonists, SC51322 and AH6809, both inhibited corneocyte formation. SC51322 also inhibited the induction of differentiation-specific proteins, cytokeratin K10 and epidermal transglutaminase. We next examined the immunolocalization of the EP1 receptor in non-melanoma skin cancer in humans. Well-differentiated SCCs exhibited significantly greater membrane staining, while spindle cell carcinomas and BCCs had significantly decreased membrane staining compared with normal epidermis. This data supports a role for the EP1 receptor in regulating keratinocyte differentiation.

Indexed as

Cell DifferentiationAnimalsCalciumHumansImmunohistochemistryKeratinocytesMiceMice, Inbred C57BLMice, KnockoutPhenotypeReceptors, Prostaglandin EReceptors, Prostaglandin E, EP1 SubtypeReverse Transcriptase Polymerase Chain ReactionSignal TransductionSkin NeoplasmsTumor Cells, Cultured6-isopropoxy-9-oxoxanthene-2-carboxylic acidCalciumPTGER1 protein, humanPtger1 protein, mouseReceptors, Prostaglandin EReceptors, Prostaglandin E, EP1 SubtypeXanthones

Identifiers

PMID19625175
PMCPMC2875085
OpenAlexW2047577518

What OpenQuestion holds

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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.