The DOI matches its Crossref record; 40 of the 42 references it cites were found in a registry or an index.
Apoptotic Body Engulfment by a Human Stellate Cell Line Is Profibrogenic
Open accessAbstract
Hepatocyte apoptosis and stellate cell activation are both features of chronic liver diseases, but a relationship between these events has not been explored. In macrophages, engulfment of apoptotic bodies induces expression of transforming growth factor-beta (TGF-beta), a profibrogenic cytokine. We examined whether a similar response occurs in stellate cells. Fluorescently labeled hepatocyte apoptotic bodies were added to cultures of primary and immortalized human stellate cells. Stellate cells, but not hepatocytes, readily engulfed apoptotic bodies in a time-dependent manner as assessed by confocal microscopy. The activation of primary and immortalized human stellate cells after incubation with apoptotic bodies, as well as their fibrogenic activity, was indicated by an increase in alpha-smooth muscle actin (primary cells), TGF-beta1, and collagen alpha1(I) mRNA (primary and immortalized cells). The profibrogenic response was dependent upon apoptotic body engulfment, because nocodazole, a microtubule-inhibiting agent, blocked both the engulfment and the increase of TGF-beta1 and collagen alpha1(I) mRNA. As described in primary rodent stellate cells, up-regulation of collagen alpha1(I) mRNA was inhibited by a PI-3K inhibitor (LY294002) and a p38 mitogen-activated protein kinase inhibitor (SB203580) in LX-1 cells. In conclusion, these data support a model in which engulfment of hepatocyte apoptotic bodies by stellate cells leads to a fibrogenic response by eliciting a kinase-signaling pathway.
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“Earlier in vitro studies reported that HSC line LX-1 is able to engulf apoptotic bodies of hepatocytes, which induced pro-fibrogenic activation in vitro via a nicotinamide adenine dinucleotide phosphate oxidase20 and phosphoinositide 3-kinase/p38 mitogen-activated protein kinase-dependent manner21.”
From Hepatocyte mitochondria-derived danger signals directly activate hepatic stellate cells and drive progression of liver fibrosis (2020) · cites this paper as [21]
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“Dying or damaged hepatocytes secrete damage-associated molecular patterns including high mobility group box 1 protein (HMGB1), osteopontin (SPP1), purinoceptor 14 (P2Y14) ligands, apoptotic bodies, microRNA (miRNA), and DNA that can be packaged into microvesicles and directly taken up by HSCs, leading to their activation into collagen-producing myofibroblasts (see “Cellular plasticity”, below) (23”
From Found in translation—Fibrosis in metabolic dysfunction–associated steatohepatitis (MASH) (2023) · cites this paper as [24]
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Role of nicotinamide adenine dinucleotide phosphate-oxidase family in liver fibrogenesis
Luo, J., & Li, Y. (2008) · World Chinese Journal of Digestology · doi:10.11569/wcjd.v16.i16.1768
Rôle de la protéine Gas6 et des cellules précurseurs dans la stéatohépatite et la fibrose hépatique
Fourcot, A. (2010) · theses.fr (ABES) · doi:10.70675/cfa04fd7z7fc5z4de1za21azd888d9c26d9b
“These data are in full accordance with LPC expansion already documented using this model (42).”
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Uncovering a Novel Role of the Apoptotic Initiator Caspase, Caspase-2
Johnson, S., & Lee, E. (2014) · DukeSpace (Duke University)
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Wild, N. (2009) · Elektronische Hochschulschriften der LMU München (Ludwig-Maximilians-Universität München) · doi:10.5282/edoc.9991
Metadata
- Authors
- Canbay, A., Taimr, P., Torok, N., Higuchi, H., Friedman, S., & Gores, G. J.
- Affiliations
- Mayo Clinic (US)
- Icahn School of Medicine at Mount Sinai (US)
- Corresponding author
- Gores, Gregory J
- Venue
- Laboratory Investigation
- Publisher
- Elsevier BV
- Published
- 2003-05
- Volume
- 83
- Issue
- 5
- Pages
- 655-663
- ISSN
- 0023-6837 (ISSN-L)
- OpenAlex
- W2089907961
- Cited by
- 417
- References
- 42
- Citations by year
- 2026: 5 · 2025: 10 · 2024: 13 · 2023: 23 · 2022: 15 · 2021: 19 · 2020: 29 · 2019: 10 · 2018: 20 · 2017: 31 · 2016: 13 · 2015: 11 · 2014: 33 · 2013: 13 · 2012: 18
- FWCI
- 9.82
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Laboratory Investigation (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Mayo Foundation for Medical Education and Research
- US-UK Fulbright Commission
- Deutscher Akademischer Austauschdienst
- National Institutes of Health (DK 41876, DK56621)
- National Institute of Diabetes and Digestive and Kidney Diseases (DK37430, DK 56621, DK-41876)
- Topics
- Health Sciences › Medicine › Hepatology › Liver physiology and pathology
- Health Sciences › Medicine › Hepatology › Liver Diseases and Immunity
- Health Sciences › Medicine › Hepatology › Liver Disease Diagnosis and Treatment
- Keywords
- hepatic stellate cells, hepatocyte apoptosis, liver fibrosis, TGF-β1, stellate cell activation, PI3K signaling, p38 MAPK signaling, chronic liver disease
- MeSH terms
- Cell Line, Humans, Liver Cirrhosis, Microtubules, RNA, Messenger, Nocodazole, Transforming Growth Factor beta, Apoptosis, Phosphatidylinositol 3-Kinases, Mitogen-Activated Protein Kinases, Hepatocytes, Collagen Type I, p38 Mitogen-Activated Protein Kinases, Transforming Growth Factor beta1
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