Evidence map›Paper›PMID 32389810›Full record

ArticleJournal of hepatology2020

Hepatic stellate cell autophagy inhibits extracellular vesicle release to attenuate liver fibrosis.

Jinhang Gao, Bo Wei, Thiago M de Assuncao, Zhikui Liu, Xiao Hu, Samar Ibrahim, Shawna A Cooper, Sheng Cao, Vijay H Shah, Enis Kostallari

Abstract read
In one paragraph

Article in Journal of hepatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 158 papers.

0numbers the graph read from it
0cells of the map it votes in
158citing papers in PubMed
–field-weighted citation impact
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

158 citing papers in PubMed.

  1. Article
  2. Review
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  7. Article
  8. Integrative study revealsWorld journal of gastroenterology · 2026
    Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. 80 years of extracellular vesicles: from discovery to clinical translation.Extracellular vesicles and circulating nucleic acids · 2026
    Review
  17. Review
  18. Article
  19. Review
  20. Article

98 more citing papers are in PubMed but not listed here.

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

10 authors.

Jinhang GaoDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States; Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, 610041 China.
Bo WeiDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States; Gastroenterology and Hepatology, West China Hospital, Sichuan University, Chengdu, 610041 China.
Thiago M de AssuncaoDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States.
Zhikui LiuDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States.
Xiao HuDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States.
Samar IbrahimDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States.
Shawna A CooperDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States; Biochemistry and Molecular Biology Graduate Program, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN, United States.
Sheng CaoDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States.
Vijay H ShahDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States.
Enis KostallariDivision of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States. Electronic address: kostallari.enis@mayo.edu.

Funding

PILOT AND FEASIBILTY PROGRAMP30DK084567 · NIDDK · MAYO CLINIC ROCHESTER · PI Nicholas F. LaRusso · 2009 to 2026
$22.2M
Molecular Mechanisms of Liver Fibrosis (Diversity Supplement)R37AA021171 · NIAAA · MAYO CLINIC ROCHESTER · PI VIJAY H. SHAH · 2019 to 2026
$3.0M
Molecular Mechanisms of Liver FibrosisR01AA021171 · NIAAA · MAYO CLINIC ROCHESTER · PI SHAH, VIJAY H. · 2012 to 2018
$2.5M
NIAAA NIH HHS R01 AA021171NIAAA NIH HHS R37 AA021171NIDDK NIH HHS P30 DK084567
6 · The paper itself

Abstract

BACKGROUND &

aimsAutophagy plays a crucial role in hepatic homeostasis and its deregulation has been associated with chronic liver disease. However, the effect of autophagy on the release of fibrogenic extracellular vesicles (EVs) by platelet-derived growth factor (PDGF)-stimulated hepatic stellate cells (HSCs) remains unknown. Herein, we aimed to elucidate the role of autophagy, specifically relating to fibrogenic EV release, in fibrosis.

methodsIn vitro experiments were conducted in primary human and murine HSCs as well as LX2 cells. Small EVs were purified by differential ultracentrifugation. Carbon tetrachloride (CCl

resultsIn vitro, PDGF and its downstream molecule SHP2 (Src homology 2-containing protein tyrosine phosphatase 2) inhibited autophagy and increased HSC-derived EV release. We used this PDGF/SHP2 model to further investigate how autophagy affects fibrogenic EV release. RNA sequencing identified an mTOR (mammalian target of rapamycin) signaling molecule that was regulated by SHP2 and PDGF. Disruption of mTOR signaling abolished PDGF-dependent EV release. Activation of mTOR signaling induced the release of multivesicular body-derived exosomes (by inhibiting autophagy) and microvesicles (by activating ROCK1 signaling). These mTOR-dependent EVs promoted in vitro HSC migration. To assess the importance of this mechanism in vivo, SHP2 was selectively deleted in HSCs, which attenuated CCl

conclusionThese results demonstrate that autophagy in HSCs attenuates liver fibrosis by inhibiting the release of fibrogenic EVs. LAY SUMMARY: During liver fibrosis and cirrhosis, activated hepatic stellate cells (HSCs) are the key cell type responsible for fibrotic tissue deposition. Recently, we demonstrated that activated HSCs release nano-sized vesicles enriched with fibrogenic proteins. In the current study, we unveil the mechanism by which these fibrogenic vesicles are released, moving a step closer to the long-term goal of therapeutically targeting this process.

Indexed as

Hepatic Stellate CellsLiverLiver CirrhosisAnimalsAutophagyCells, CulturedDisease Models, AnimalExtracellular VesiclesHumansMicePlatelet-Derived Growth FactorProtein Tyrosine Phosphatase, Non-Receptor Type 11rho-Associated KinasesSequence Analysis, RNATOR Serine-Threonine KinasesPlatelet-Derived Growth FactorProtein Tyrosine Phosphatase, Non-Receptor Type 11rho-Associated KinasesROCK1 protein, humanRock1 protein, mouseTOR Serine-Threonine KinasesAutophagyExosomeHepatic stellate cellLiver fibrosisMicrovesiclemTOR signaling

Identifiers

PMID32389810
PMCPMC7572579

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Registered trials

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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.