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Updated: Jul 14, 2026
06:55
Mapping Hepatic Stellate Cell Morphology in Mouse Models of Liver Fibrosis
Published on: February 13, 2026
[Hepatic stellate cells and oxidative stress]
1Department of Medicine, Division of Liver Deseases, Mount Sinai School of Medicine, New York, NY 10029, USA.
Revista Espanola De Enfermedades Digestivas
|June 26, 2007
Summary
Hepatic fibrosis involves excessive collagen production by activated hepatic stellate cells (HSC). Oxidant stress significantly contributes to HSC activation, driving liver scarring during chronic liver injury.
Area of Science:
- Hepatology and Cellular Biology
- Biochemistry of Extracellular Matrix
Context:
- Hepatic fibrosis is a pathological condition resulting from chronic liver injury.
- It is characterized by excessive deposition of extracellular matrix (ECM), primarily collagen type I.
- Hepatic stellate cells (HSC) are the primary cells responsible for scar tissue production in the liver.
Purpose:
- To review the critical role of oxidant stress in the activation of hepatic stellate cells (HSC).
- To elucidate the mechanisms by which reactive oxygen species (ROS) mediate HSC activation and fibrogenesis.
Summary:
- Hepatic stellate cell (HSC) activation is the central event in hepatic fibrosis, leading to uncontrolled collagen type I production.
- HSC activation is triggered by cytokines and reactive oxygen species (ROS) released from damaged liver cells and inflammatory cells.
- While paracrine signaling initiates HSC activation, autocrine and paracrine loops perpetuate this fibrogenic state.
Impact:
- Understanding the role of oxidant stress in HSC activation can reveal novel therapeutic targets for liver fibrosis.
- This knowledge may lead to strategies aimed at mitigating scar tissue formation and improving outcomes for patients with chronic liver disease.
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