Evidence map›Paper›PMID 21993975›Full record

ArticleInflammatory bowel diseases2012

Cyclic AMP dysregulates intestinal epithelial cell restitution through PKA and RhoA.

Noah P Zimmerman, Suresh N Kumar, Jerrold R Turner, Michael B Dwinell

Abstract read
In one paragraph

Article in Inflammatory bowel diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

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  7. An in vivo RNAi screen uncovers the role of AdoR signaling and adenosine deaminase in controlling intestinal stem cell activity.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  8. Article
  9. Rainbow Trout (Frontiers in immunology · 2019
    Article
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  13. Review
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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

4 authors at 2 institutions in 1 country.

Noah P ZimmermanMicrobiology and Molecular Genetics, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA.
Suresh N Kumar
Jerrold R Turner
Michael B Dwinell
Medical College of Wisconsin · USUniversity of Chicago · US

Funding

CTSA INFRASTRUCTURE FOR PEDIATRIC RESEARCHUL1RR031973 · NCRR · MEDICAL COLLEGE OF WISCONSIN · PI SHAKER, REZA NONE · 2010 to 2011
$7.9M
EPITHELIAL CXCR4 IN A MUCOSAL COMMUNICATION NETWORKR01DK062066 · NIDDK · MEDICAL COLLEGE OF WISCONSIN · PI DWINELL, MICHAEL B · 2005 to 2009
$1.4M
cAMP Functions as a Molecular Brake for Intestinal Epithelial Restitution.F32DK083209 · NIDDK · MEDICAL COLLEGE OF WISCONSIN · PI ZIMMERMAN, NOAH P · 2008 to 2010
$109k
NCRR NIH HHS UL1 RR031973NCRR NIH HHS UL1RR031973NIDDK NIH HHS F32 DK083209NIDDK NIH HHS F32DK083209NIDDK NIH HHS R01 DK062066NIDDK NIH HHS R01DK062066NIDDK NIH HHS R01DK06827
6 · The paper itself

Abstract

backgroundMucosal homeostasis is dependent on the establishment and maintenance of the cell-cell contacts that comprise the physiological barrier. Breaks in the barrier are linked to multiple diseases such as inflammatory bowel disease. While increased cyclic adenosine monophosphate (cAMP) levels limit inflammation by decreasing leukocyte infiltration, the effects of elevated cAMP on intestinal epithelial repair are unknown.

methodsRestitution in animals administered rolipram was monitored by microscopic examination after laser wounding of the intestinal epithelium or in mice treated with dextran sodium sulfate (DSS). In vitro analysis was conducted using IEC6 and T84 cells to determine the role of elevated cAMP in altering Rho-dependent cellular migration signaling pathways.

resultsWe show that treatment with rolipram, forskolin, and cAMP analogs decrease intestinal epithelial cell migration in vitro. In vivo cell imaging revealed that increased cAMP resulted in a decreased cellular migration rate, with cells at the edge displaying the highest activity. As expected, elevated cAMP elicited increased protein kinase A (PKA) activity, in turn resulting in the inactivation and sequestration of RhoA and decreased actin reorganization. The ablation of restitution by cAMP was not restricted to cell culture, as forskolin and rolipram treatment significantly decreased epithelial microwound closure induced by the two photon confocal injury model.

conclusionsTogether, these data suggest that administration of cAMP-elevating agents paradoxically decrease infiltration of damage-causing leukocytes while also preventing epithelial repair and barrier maintenance. We propose that treatment with cAMP-elevating agents severely limits mucosal reepithelialization and should be contraindicated for use in chronic inflammatory bowel disorders.

Indexed as

AnimalsCell MovementCells, CulturedColforsinCyclic AMPCyclic AMP-Dependent Protein KinasesHumansIntestinal MucosaLasersMicePhosphodiesterase 4 InhibitorsPhosphorylationRatsrhoA GTP-Binding ProteinRolipramSignal TransductionColforsinCyclic AMPCyclic AMP-Dependent Protein KinasesPhosphodiesterase 4 InhibitorsrhoA GTP-Binding ProteinRolipram

Identifiers

PMID21993975
PMCPMC3258471
OpenAlexW2035600836

What OpenQuestion holds

Textmetadata
LicenceTDM
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.