Evidence map›Paper›PMID 22700825›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2012

Cellular mechanism of mechanotranscription in colonic smooth muscle cells.

Feng Li, You-Min Lin, Sushil K Sarna, Xuan-Zheng Shi

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing 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

20 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
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  3. Article
  4. Review
  5. Article
  6. Article
  7. Mechanotransduction at the Plasma Membrane-Cytoskeleton Interface.International journal of molecular sciences · 2021
    Review
  8. Article
  9. Review
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  16. 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 1 institution in 1 country.

Feng LiDivision of Gastroenterology, Department of Internal Medicine, University of Texas Medical Branch, Galveston, 77555-0655, USA.
You-Min Lin
Sushil K Sarna
Xuan-Zheng Shi
The University of Texas Medical Branch at Galveston · US

Funding

Obstruction-initiated mechanotranscription in colonic smooth muscle cellsR01DK082563 · NIDDK · UNIVERSITY OF TEXAS MED BR GALVESTON · PI SHI, XUAN-ZHENG PETER · 2009 to 2012
$1.4M
NIDDK NIH HHS R01 DK082563NIDDK NIH HHS R01-DK-082563
6 · The paper itself

Abstract

Mechanical stretch in obstruction induces expression of cyclooxygenase-2 (COX-2) in gut smooth muscle cells (SMCs). The stretch-induced COX-2 plays a critical role in motility dysfunction in obstructive bowel disorders (OBDs). The aims of the present study were to investigate the intracellular mechanism of mechanotranscription of COX-2 in colonic SMCs and to determine whether inhibition of mechanotranscription has therapeutic benefits in OBDs. Static stretch was mimicked in vitro in primary culture of rat colonic circular SMCs (RCCSMCs) and in colonic circular muscle strips. Partial obstruction was surgically induced with a silicon band in the distal colon of rats and COX-2-deficient mice. Static stretch of RCCSMCs significantly induced expression of COX-2 mRNA and protein and activated MAP kinases ERKs, p38, and JNKs. ERKs inhibitor PD98059, p38 inhibitor SB203580, and JNKs inhibitor SP600125 significantly blocked stretch-induced COX-2 expression. Pharmacological and molecular inhibition of stretch-activated ion channels (SACs) and integrins significantly suppressed stretch-induced expression of COX-2. SAC blockers inhibited stretch-activated ERKs, p38, and JNKs, but inhibition of integrins attenuated p38 activation only. In colonic circular muscle strips, stretch led to activation of MAPKs, induction of COX-2, and suppression of contractility. Inhibition of p38 with SB203580 blocked COX-2 expression and restored muscle contractility. Administration of SB203580 in vivo inhibited obstruction-induced COX-2 and improved motility function. Stretch-induced expression of COX-2 in RCCSMCs depends on mechanosensors, SACs, and integrins and an intracellular signaling mechanism involving MAPKs ERKs, p38, and JNKs. Inhibitors of the mechanotranscription pathway have therapeutic potentials for OBDs.

Indexed as

AnimalsBlotting, WesternColonCyclooxygenase 2Gene ExpressionIntegrinsMaleMAP Kinase Signaling SystemMechanotransduction, CellularMuscle SpindlesMyocytes, Smooth MuscleRatsRats, Sprague-DawleyReal-Time Polymerase Chain ReactionSignal TransductionCyclooxygenase 2IntegrinsPtgs2 protein, rat

Identifiers

PMID22700825
PMCPMC3468553
OpenAlexW2170200332

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.