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Telocytes in human liver fibrosis
1Regeneration and Ageing Lab and Experimental Center of Life Sciences, School of Life Science, Shanghai University, Shanghai, China; Innovative Drug Research Center of Shanghai University, Shanghai, China.
Journal of Cellular and Molecular Medicine
|February 10, 2015
Summary
Telocytes (TCs) are reduced in human liver fibrosis, suggesting their loss promotes fibrosis. Restoring TCs may offer new antifibrotic therapies for liver disease.
Area of Science:
- Hepatology
- Cell Biology
- Fibrosis Research
Background:
- Liver fibrosis is a complex wound-healing response involving multiple cell types.
- Telocytes (TCs), a novel interstitial cell type, are found in various organs, including the liver.
- Previous studies noted TC reduction in fibrotic conditions of other organs, but their role in human liver fibrosis was unknown.
Purpose of the Study:
- To investigate the role and presence of telocytes (TCs) in human liver fibrosis.
- To determine if TC numbers change in fibrotic liver tissue compared to healthy tissue.
Main Methods:
- Human liver biopsy samples were collected and assessed for fibrosis using Masson's trichrome staining.
- Telocytes (TCs) were identified via immunofluorescence staining, including double labeling for CD34 and c-kit/CD117, vimentin, PDGF Receptor-α, or β.
Main Results:
- A significant decrease in hepatic telocytes (TCs) was observed in human liver fibrosis, ranging from 27% to 60%.
- This reduction suggests TCs may play a role in regulating extracellular matrix organization and fibroblast/myofibroblast activity.
Conclusions:
- The loss of telocytes (TCs) in the liver may contribute to the development and progression of liver fibrosis.
- Augmenting TC populations could represent a potential therapeutic strategy for treating human liver fibrosis.
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