Evidence map›Paper›PMID 22488688›Full record

ArticleHepatology (Baltimore, Md.)2012

Osteopontin is a novel downstream target of SOX9 with diagnostic implications for progression of liver fibrosis in humans.

James Pritchett, Emma Harvey, Varinder Athwal, Andrew Berry, Cliff Rowe, Fiona Oakley, Anna Moles, Derek A Mann, Nicoletta Bobola, Andrew D Sharrocks and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Hepatology (Baltimore, Md.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

56 citing papers in PubMed, 99 citations in OpenAlex.

  1. A practical toolbox for modelling fibrosis in vitro.Nature biomedical engineering · 2026
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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

16 authors at 7 institutions in 4 countries.

James PritchettEndocrinology and Diabetes Group, School of Biomedicine, University of Manchester, Manchester, United Kingdom.
Emma Harvey
Varinder Athwal
Andrew Berry
Cliff Rowe
Fiona Oakley
Anna Moles
Derek A Mann
Nicoletta Bobola
Andrew D Sharrocks
Brian J Thomson
Abed M Zaitoun
William L Irving
Indra N Guha
Neil A Hanley
Karen Piper Hanley
Cellular Biomedicine Group (United States) · USUniversity of Manchester · GBNewcastle University · GBQueen's Medical Centre · GBCellular Research (United States) · USDiabetes Australia · AUUniversity of Nottingham · GB

Funding

Biotechnology and Biological Sciences Research CouncilMedical Research Council G0900535Medical Research Council G1001928Medical Research Council MR/J003352/1Wellcome Trust 088566
6 · The paper itself

Abstract

unlabelledOsteopontin (OPN) is an important component of the extracellular matrix (ECM), which promotes liver fibrosis and has been described as a biomarker for its severity. Previously, we have demonstrated that Sex-determining region Y-box 9 (SOX9) is ectopically expressed during activation of hepatic stellate cells (HSC) when it is responsible for the production of type 1 collagen, which causes scar formation in liver fibrosis. Here, we demonstrate that SOX9 regulates OPN. During normal development and in the mature liver, SOX9 and OPN are coexpressed in the biliary duct. In rodent and human models of fibrosis, both proteins were increased and colocalized to fibrotic regions in vivo and in culture-activated HSCs. SOX9 bound a conserved upstream region of the OPN gene, and abrogation of Sox9 in HSCs significantly decreased OPN production. Hedgehog (Hh) signaling has previously been shown to regulate OPN expression directly by glioblastoma (GLI) 1. Our data indicate that in models of liver fibrosis, Hh signaling more likely acts through SOX9 to modulate OPN. In contrast to Gli2 and Gli3, Gli1 is sparse in HSCs and is not increased upon activation. Furthermore, reduction of GLI2, but not GLI3, decreased the expression of both SOX9 and OPN, whereas overexpressing SOX9 or constitutively active GLI2 could rescue the antagonistic effects of cyclopamine on OPN expression.

conclusionThese data reinforce SOX9, downstream of Hh signaling, as a core factor mediating the expression of ECM components involved in liver fibrosis. Understanding the role and regulation of SOX9 during liver fibrosis will provide insight into its potential modulation as an antifibrotic therapy or as a means of identifying potential ECM targets, similar to OPN, as biomarkers of fibrosis.

Indexed as

AnimalsDisease ProgressionHumansLiver CirrhosisMaleOsteopontinRatsRats, Sprague-DawleySOX9 Transcription FactorOsteopontinSOX9 protein, humanSOX9 Transcription Factor

Identifiers

PMID22488688
PMCPMC3638324
OpenAlexW2166582753

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.