Transformation in vitro with herpesvirus ateles

Area of Science:

• Virology
• Cell Biology
• Immunology

Background:

• Marmoset lymphocytes are susceptible to in vitro transformation.
• Herpesvirus ateles (HVA) is an oncogenic virus that can infect primate lymphocytes.

Purpose of the Study:

• To establish continuous lymphoblastoid cell cultures from marmoset lymphocytes transformed by HVA.
• To demonstrate HVA genome expression in the established cell lines.

Main Methods:

• Lymphocytes were co-cultivated with HVA-carrying cells or infected with cell-free HVA.
• Transformation was confirmed by HVA recovery, infectious center assays, and antigen detection.
• Cellular phenotype was assessed via sheep erythrocyte rosettes and immunoglobulin staining.

Main Results:

• Continuous lymphoblastoid cell cultures were successfully established from transformed marmoset lymphocytes.
• HVA genome expression was confirmed through multiple assays, including virus recovery and antigen positivity.
• Most cultures consisted of T lymphocytes, lacking membrane immunoglobulin.

Conclusions:

• In vitro transformation of marmoset lymphocytes with HVA is feasible, yielding continuous cell lines.
• These cell lines provide a valuable model for studying HVA replication and pathogenesis.
• The established cultures are primarily T-cell in nature, facilitating specific immunological investigations.