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Multivesicular stellate cells in primary biliary cirrhosis
R G Cameron1, M G Neuman, N Shear
1Department of Pathology, the Toronto Hospital, Ontario, Canada.
Hepatology (Baltimore, Md.)
|October 27, 1997
Summary
Stellate cells in primary biliary cirrhosis (PBC) patients show increased lipid storage. This alteration in hepatic lipid metabolism involving stellate cells may be an early sign of PBC.
Area of Science:
- Hepatology
- Cell Biology
- Gastroenterology
Background:
- Stellate cells are increasingly recognized for their role in liver diseases.
- Primary biliary cirrhosis (PBC) is a chronic liver disease affecting bile ducts.
Purpose of the Study:
- To investigate the lipid-storing activity of stellate cells in patients with primary biliary cirrhosis (PBC).
- To compare stellate cell morphology in PBC patients with healthy controls.
Main Methods:
- Electron microscopy and morphometry were used for qualitative and quantitative analysis.
- Liver biopsies from 26 PBC patients and 51 healthy individuals were examined.
Main Results:
- Stellate cells in PBC patients exhibited a significant increase in lipid vesicles compared to controls.
- Multivesicular stellate cells were prevalent in 21 of 26 PBC patients.
- Hepatocytes showed minimal steatosis in most PBC patients, indicating altered lipid storage in stellate cells.
Conclusions:
- Alterations in hepatic lipid storage involving stellate cells are observed in PBC.
- These findings suggest a potential role for stellate cells in the early pathogenesis of PBC.