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Giant cell formation in Hodgkin's disease
G Sitar1, A Bianchi Santamaria, V Rosti
1Clinica Medica Adolfo Ferrata dell'Università di Pavia, Italy.
Research in Immunology
|September 1, 1994
Summary
Researchers observed giant cell formation from peripheral blood cells in culture, suggesting Epstein-Barr virus (EBV) and cytokines induce these cells, potentially explaining Reed-Sternberg cell origins in Hodgkin
Area of Science:
- Cell Biology
- Virology
- Oncology
Background:
- The origin of Reed-Sternberg cells in Hodgkin's disease is a long-standing mystery.
- Giant cell formation mechanisms include endomitosis and cell fusion.
- Epstein-Barr virus (EBV) is increasingly linked to Hodgkin's disease, but its role is debated.
Purpose of the Study:
- To investigate the experimental conditions for giant cell cytogenesis from peripheral blood mononuclear cells.
- To explore the potential role of Epstein-Barr virus (EBV) and cytokines in giant cell formation.
Main Methods:
- Peripheral blood mononuclear cells were isolated and co-cultured with Hodgkin's lymph node cells in a specialized chamber.
- The chamber allowed passage of cytokines and viruses but not direct cell contact.
- In situ hybridization was used to detect EBV DNA in cultured giant cells.
Main Results:
- Giant cells, some resembling Reed-Sternberg cells and Langhans giant cells, formed in the peripheral blood mononuclear cell fraction.
- A subset of these giant cells tested positive for EBV DNA.
- Giant cell formation was observed originating from lymphocytes and monocytes.
Conclusions:
- Experimental evidence suggests EBV-dependent biological activity induces giant cell formation.
- Lymphocytes and monocytes are likely precursors for these giant cells.
- The findings implicate EBV and/or cytokines in the pathogenesis of giant cell formation relevant to Hodgkin's disease.