Cited by 409Liver physiology and pathologyPeroxisome Proliferator-Activated ReceptorsLiver Disease Diagnosis and Treatment

Ligands of peroxisome proliferator-activated receptor γ modulate profibrogenic and proinflammatory actions in hepatic stellate cells

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Marra, Fabio, Efsen, Eva, Romanelli, Roberto G., Caligiuri, Alessandra, Pastacaldi, Sabrina, Batignani, Giacomo, Bonacchi, Andrea, Caporale, Roberto +3 more·2000·Gastroenterology

Abstract

Background & aims Proliferation and migration of hepatic stellate cells (HSCs) and expression of chemokines are involved in the pathogenesis of liver inflammation and fibrogenesis. Peroxisome proliferator-activated receptor (PPAR)-gamma is a receptor transcription factor that controls growth and differentiation in different tissues. We explored the effects of PPAR-gamma agonists on the biological actions of cultured human HSCs.Methods HSCs were isolated from normal human liver tissue and used in their myofibroblast-like phenotype or immediately after isolation. Activation of PPAR-gamma was induced with 15-deoxy-Delta(12, 14)-prostaglandin J(2) or with troglitazone.Results PPAR-gamma agonists dose-dependently inhibited HSC proliferation and chemotaxis induced by platelet-derived growth factor. This effect was independent of changes in postreceptor signaling or expression of c-fos and c-myc and was associated with inhibition of cell cycle progression beyond the G(1) phase. Activation of PPAR-gamma also resulted in a complete inhibition of the expression of monocyte chemotactic protein 1 at the gene and protein levels. Comparison of quiescent and culture-activated HSCs revealed a marked decrease in PPAR-gamma expression in activated cells.Conclusions Activation of PPAR-gamma modulates profibrogenic and proinflammatory actions in HSCs. Reduced PPAR-gamma expression may contribute to confer an activated phenotype to HSCs.

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Crossref · 10.1053/gast.2000.9365

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  • In vitro studies investigating PPAR-γ activation in hepatic stellate cells showed an additional decrease of hepatic stellate cell proliferation after PDGF induction.

    “Interestingly, in vitro studies investigating PPAR-γ activation in HSCs showed an additional decrease of HSC proliferation after PDGFinduction.[129,134]”

    From Nuclear receptors in liver fibrosis (2021) · cites this paper as [129]

  • PPAR-γ prevents the TGF-β/SMAD pathway in pro-fibrotic myofibroblasts.

    “Furthermore, PPAR-γ prevents the TGF-β/SMAD pathway in pro-fibrotic MFs.[128,129]”

    From Nuclear receptors in liver fibrosis (2021) · cites this paper as [129]

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Research works printed but not linked: 2

  1. Marra F, Arrighi MC, Fazi M, Caligiuri A, Pinzani M, Romanelli RG, Efsen E, Laffi G, Gentilini P. ERK activation differentially regulates PDGF's actions in hepatic stellate cells, and is induced by in vivo liver injury in the rat. Hepatology 1999;30:951-958.
  2. Marra F, Ghosh Choudhury G, Abboud HE. Interferon-␥-mediated activation of STAT1␣ regulates growth factor-induced mitogene- sis. J Clin Invest 1996;98:1218 -1230.

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Authors
Marra, F., Efsen, E., Romanelli, R. G., Caligiuri, A., Pastacaldi, S., Batignani, G., Bonacchi, A., Caporale, R., Laffi, G., Pinzani, M., & Gentilini, P.
Affiliations
  • University of Florence (IT)
  • Azienda Ospedaliero-Universitaria Careggi (IT)
Venue
Gastroenterology
Publisher
Elsevier BV
Published
2000-08
Volume
119
Issue
2
Pages
466-478
ISSN
0016-5085 (ISSN-L)
OpenAlex
W2163207725
Cited by
409
References
62
Citations by year
2026: 4 · 2025: 5 · 2024: 5 · 2023: 10 · 2022: 5 · 2021: 14 · 2020: 11 · 2019: 10 · 2018: 9 · 2017: 20 · 2016: 16 · 2015: 20 · 2014: 14 · 2013: 17 · 2012: 16
FWCI
10.18
Type
journal article
Language
en
Open access
Locations
  • Gastroenterology (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Florence Research (University of Florence) (submittedVersion)
Topics
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
Keywords
PPARγ, hepatic stellate cells, PPARγ agonists, liver fibrosis, liver inflammation, cell proliferation, chemotaxis, platelet-derived growth factor, MCP-1, troglitazone, 15-deoxy-Δ12,14-prostaglandin J2, cell cycle progression, G1 phase, myofibroblast activation
MeSH terms
Troglitazone, Antineoplastic Agents, Biological Transport, Cell Division, Cell Movement, Cell Survival, Cells, Cultured, Chromans, Cytotoxins, Hepatitis, Humans, Interleukin-1, Ligands, Liver, Liver Cirrhosis, Phosphorylation, Platelet-Derived Growth Factor, Proto-Oncogenes, RNA, Messenger, Thiazoles, Transcription Factors, Tyrosine, Wound Healing, Prostaglandin D2, Gene Expression, NF-kappa B, Receptors, Cytoplasmic and Nuclear, Transcription Factor AP-1, Chemokine CCL2, Mitogen-Activated Protein Kinases, Thiazolidinediones, p38 Mitogen-Activated Protein Kinases

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