Evidence map›Paper›PMID 22202457›Full record

ArticleGastroenterology2012

Fibronectin extra domain-A promotes hepatic stellate cell motility but not differentiation into myofibroblasts.

Abby L Olsen, Bridget K Sackey, Cezary Marcinkiewicz, David Boettiger, Rebecca G Wells

Open access · bronzeAbstract readVideo-Audio Media
In one paragraph

Article in Gastroenterology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

31 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Liver Fibrosis: Interactions Between Cells and Microenvironments.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. Tissue mechanics coevolves with fibrillar matrisomes in healthy and fibrotic tissues.Matrix biology : journal of the International Society for Matrix Biology · 2022
    Review
  7. Proteomic Changes of Activated Hepatic Stellate Cells.International journal of molecular sciences · 2021
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Biology of portal hypertension.Hepatology international · 2018
    Review
  15. Signaling Mechanisms of Myofibroblastic Activation: Outside-in and Inside-Out.Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology · 2018
    Review
  16. Liver Sinusoidal Endothelial Cell: An Update.Seminars in liver disease · 2017
    Review
  17. Matrix Remodeling in Pulmonary Fibrosis and Emphysema.American journal of respiratory cell and molecular biology · 2016
    Review
  18. Article
  19. Review
  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

5 authors at 2 institutions in 1 country.

Abby L OlsenDepartment of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania, USA.
Bridget K Sackey
Cezary Marcinkiewicz
David Boettiger
Rebecca G Wells
University of Pennsylvania · USTemple University · US

Funding

TRANSGENIC AND CHIMERIC MOUSE COREP30DK050306 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI REBECCA G WELLS · 1997 to 2026
$32.5M
TGF-B Mediated Fibrosis in a Hepatic Stellate Cell ModelR01DK058123 · NIDDK · YALE UNIVERSITY · PI WELLS, REBECCA G · 2001 to 2016
$4.5M
Cellular fibronectin and hepatic stellate cell function in liver fibrosisF30DK081265 · NIDDK · UNIVERSITY OF PENNSYLVANIA · PI OLSEN, ABBY LAUREN · 2008 to 2011
$125k
NIDDK NIH HHS F30 DK081265NIDDK NIH HHS F30 DK081265-01NIDDK NIH HHS P30 DK050306NIDDK NIH HHS R01 DK-058123NIDDK NIH HHS R01 DK058123
6 · The paper itself

Abstract

BACKGROUND &

aimsMyofibroblasts are the primary cell type involved in physiologic wound healing and its pathologic counterpart, fibrosis. Cellular fibronectin that contains the alternatively spliced extra domain A (EIIIA) is up-regulated during these processes and is believed to promote myofibroblast differentiation. We sought to determine the requirement for EIIIA in fibrosis and differentiation of myofibroblasts in rodent livers.

methodsWe used a mechanically tunable hydrogel cell culture system to study differentiation of primary hepatic stellate cells and portal fibroblasts from rats into myofibroblasts. Liver fibrosis was induced in mice by bile duct ligation or administration of thioacetamide.

resultsEIIIA was not required for differentiation of rat hepatic stellate cells or portal fibroblasts into fibrogenic myofibroblasts. Instead, hepatic stellate cells cultured on EIIIA-containing cellular fibronectin formed increased numbers of lamellipodia; their random motility and chemotaxis also increased. These increases required the receptor for EIIIA, the integrin α(9)β(1). In contrast, the motility of portal fibroblasts did not increase on EIIIA, and these cells expressed little α(9)β(1). Male EIIIA(-/-) mice were modestly protected from thioacetamide-induced fibrosis, which requires motile hepatic stellate cells, but not from bile duct ligation-induced fibrosis, in which portal fibroblasts are more important. Notably, myofibroblasts developed during induction of fibrosis with either thioacetamide or bile duct ligation in EIIIA(-/-) mice.

conclusionsEIIIA is dispensable for differentiation of hepatic stellate cells and portal fibroblasts to myofibroblasts, both in culture and in mouse models of fibrosis. Our findings, however, indicate a role for EIIIA in promoting stellate cell motility and parenchymal liver fibrosis.

Indexed as

Cell MovementCell TransdifferentiationAnimalsBile DuctsCell Culture TechniquesCells, CulturedFemaleFibroblastsFibronectinsHepatic Stellate CellsHydrogelsIntegrin alpha ChainsIntegrin beta1LigationLiver Cirrhosis, BiliaryLiver Cirrhosis, Experimentalextra domain A fibronectin, mouseFibronectinsHydrogelsintegrin alpha9Integrin alpha ChainsIntegrin beta1Protein IsoformsThioacetamide

Identifiers

PMID22202457
PMCPMC3321084
OpenAlexW2065767110

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.