Evidence map›Paper›PMID 18260825›Full record

ArticleThe Biochemical journal2008

Interleukin-1beta up-regulates RGS4 through the canonical IKK2/IkappaBalpha/NF-kappaB pathway in rabbit colonic smooth muscle.

Wenhui Hu, Fang Li, Sunila Mahavadi, Karnam S Murthy

Open access · greenAbstract read
In one paragraph

Article in The Biochemical journal, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.5field-weighted citation impact, top 15% 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

28 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Regulator of G protein signaling 4 is a novel target of GATA-6 transcription factor.Biochemical and biophysical research communications · 2017
    Article
  6. Article
  7. RGS proteins as targets in the treatment of intestinal inflammation and visceral pain: New insights and future perspectives.BioEssays : news and reviews in molecular, cellular and developmental biology · 2016
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Effects of traumatic brain injury on intestinal contractility.Neurogastroenterology and motility · 2013
    Article
  16. Article
  17. Mechanisms of smooth muscle responses to inflammation.Neurogastroenterology and motility · 2012
    Review
  18. A finer tuning of G-protein signaling through regulated control of RGS proteins.American journal of physiology. Heart and circulatory physiology · 2012
    Review
  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

4 authors at 1 institution in 1 country.

Wenhui HuDepartments of Physiology and Medicine, Medical College of Virginia Campus, Virginia Commonwealth University, Richmond, VA 23298, USA. whu@vcu.edu
Fang Li
Sunila Mahavadi
Karnam S Murthy
Virginia Commonwealth University Medical Center · US

Funding

HORMONAL INTEGRATION OF EXOCRINE AND ENDOCRINE ORGANSR01DK015564 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI KARNAM, S MURTHY · 1986 to 2020
$6.7M
Regulation of gut smooth muscle contraction and relaxation by cytokinesR01DK075964 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI HU, WENHUI · 2007 to 2016
$2.9M
HORMONAL INTEGRATION OF EXOCRINE AND ENDOCRINE ORGANSR37DK015564 · NIDDK · VIRGINIA COMMONWEALTH UNIVERSITY · PI MAKHLOUF, GABRIEL M. · 1988 to 1995
–
NIDDK NIH HHS DK015564NIDDK NIH HHS DK075964NIDDK NIH HHS R01 DK015564NIDDK NIH HHS R01 DK075964
6 · The paper itself

Abstract

Initial Ca2+-dependent contraction of the intestinal smooth muscle mediated by G(q)-coupled receptors is attenuated by RGS4 (regulator of G-protein signalling 4). Treatment of colonic muscle cells with IL-1beta (interleukin-1beta) inhibits acetylcholine-stimulated initial contraction through increasing the expression of RGS4. NF-kappaB (nuclear factor kappaB) signalling is the dominant pathway activated by IL-1beta. In the present study we show that RGS4 is a new target gene regulated by IL-1beta/NF-kappaB signalling. Exposure of cultured rabbit colonic muscle cells to IL-1beta induced a rapid increase in RGS4 mRNA expression, which was abolished by pretreatment with a transcription inhibitor, actinomycin D, implying a transcription-dependent mechanism. Existence of the canonical IKK2 [IkappaB (inhibitor of NF-kappaB) kinase 2]/IkappaBalpha pathway of NF-kappaB activation induced by IL-1beta in rabbit colonic muscle cells was validated with multiple approaches, including the induction of reporter luciferase activity and endogenous NF-kappaB-target gene expression, NF-kappaB-DNA binding activity, p65 nuclear translocation, IkappaBalpha degradation and the phosphorylation of IKK2 at Ser(177/181) and p65 at Ser(536). RGS4 up-regulation by IL-1beta was blocked by selective inhibitors of IKK2, IkappaBalpha or NF-kappaB activation, by effective siRNA (small interfering RNA) of IKK2, and in cells expressing either the kinase-inactive IKK2 mutant (K44A) or the phosphorylation-deficient IkappaBalpha mutant (S32A/S36A). An IKK2-specific inhibitor or effective siRNA prevented IL-1beta-induced inhibition of acetylcholine-stimulated PLC-beta (phopsholipase C-beta) activation. These results suggest that the canonical IKK2/IkappaBalpha pathway of NF-kappaB activation mediates the up-regulation of RGS4 expression in response to IL-1beta and contributes to the inhibitory effect of IL-1beta on acetylcholine-stimulated PLC-beta-dependent initial contraction in rabbit colonic smooth muscle.

Indexed as

AcetylcholineAnimalsCells, CulturedColonHumansI-kappa B KinaseI-kappa B ProteinsInterleukin-1betaMuscle ContractionMyocytes, Smooth MuscleNF-kappa BNF-KappaB Inhibitor alphaPhospholipase C betaPhosphorylationProtein Processing, Post-TranslationalProtein TransportAcetylcholineI-kappa B KinaseI-kappa B ProteinsInterleukin-1betaNF-kappa BNF-KappaB Inhibitor alphaNFKBIA protein, humanPhospholipase C betaRGS4 proteinRGS ProteinsRNA, Messenger

Identifiers

PMID18260825
PMCPMC3707494
OpenAlexW1966710274

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.