Evidence map›Paper›PMID 18753413›Full record

ArticleThe American journal of pathology2008

Divergent transforming growth factor-beta signaling in hepatic stellate cells after liver injury: functional effects on ECE-1 regulation.

Al-Karim Khimji, Rong Shao, Don C Rockey

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 21% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Role of Smad3 in platelet-derived growth factor-C-induced liver fibrosis.American journal of physiology. Cell physiology · 2016
    Article
  8. Article
  9. Article
  10. Translating an understanding of the pathogenesis of hepatic fibrosis to novel therapies.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2013
    Review
  11. Article
  12. Article
  13. Endothelin and hepatic wound healing.Pharmacological research · 2011
    Review
  14. 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

3 authors at 3 institutions in 1 country.

Al-Karim KhimjiDepartment of Internal Medicine, UT Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390, USA.
Rong Shao
Don C Rockey
Pioneer (United States) · USSouthwestern Medical CenterThe University of Texas Southwestern Medical Center · US

Funding

PATHOGENESIS OF HEPATIC FIBROSIS AND PORTAL HYPERTENSIONR01DK050574 · NIDDK · UT SOUTHWESTERN MEDICAL CENTER · PI ROCKEY, DON C. · 1996 to 2010
$3.0M
NIDDK NIH HHS R01 DK050574NIDDK NIH HHS R01 DK 50574
6 · The paper itself

Abstract

In liver wound healing, transforming growth factor-beta (TGF-beta) plays a critical role in stellate cell activation as well as signaling cascades in the fibrogenic response to injury. We postulate that the TGF-beta-dependent downstream signaling pathway may vary according to the mechanism of stellate cell activation; this study was undertaken to ascertain whether the downstream signaling pathways mediated by TGF-beta vary in different liver injury models. We measured Smad3 and MAP kinase activation after isolating stellate cells from rat livers injured by either bile duct ligation (BDL) or repeated carbon tetrachloride (CCl(4)) administration. Phospho-Smad3 was dramatically up-regulated in stellate cells after CCl(4) injury, but not after BDL-induced injury. TGF-beta signaling in stellate cells activated after BDL was mediated prominently through ERK activation, whereas activation induced by CCl(4) injury or culture led to a cross-signaling mechanism involving both Smad3 and p38. The divergent Smad signaling pathways observed appeared to be attributable to the differential regulation of the early growth response gene-1 (Egr-1), an apparent negative transcriptional factor for Smad3 in our system. In addition, inhibition of ERK activation in stellate cells from BDL-injured liver led to a decrease in expression of endothelin-converting enzyme-1, a critical regulator of endothelin-1. We speculate that TGF-beta signaling proceeds through differential signaling pathways depending on the mechanism of liver injury that leads to stellate cell activation.

Indexed as

AnimalsAspartic Acid EndopeptidasesBile DuctsCarbon TetrachlorideCells, CulturedElectrophoretic Mobility Shift AssayEndothelin-Converting EnzymesEnzyme ActivationExtracellular Signal-Regulated MAP KinasesHepatocytesHumansImmunoblottingImmunohistochemistryImmunoprecipitationLigationLiverAspartic Acid EndopeptidasesCarbon TetrachlorideECE1 protein, humanEndothelin-Converting EnzymesExtracellular Signal-Regulated MAP KinasesMetalloendopeptidasesSmad3 ProteinTransforming Growth Factor beta

Identifiers

PMID18753413
PMCPMC2527071
OpenAlexW2096103059

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.