title: On the continuous culturing of B.95-8 cells in the presence of phosphonoacetic acid.
abstract: Lymphoblastoid B.95-8 cells were cultured for four months and three weeks in the presence of increasing concentrations (50--200 microgram/ml) of phosphonoacetic acid (PAA). Several weeks after removal of the PAA, the cultures, in parallel with untreated B.95-8 cells, were tested for the presence of: 1) Epstein-Barr virus (EBV) viral capsid antigen (VCA), and b) transformation of human cord blood lymphocytes. There was no difference in the percentage of cells exhibiting VCA in the B.95-8 PAA treated and untreated cells. However, transformation assays indicated 10 times less transforming virus in culture supernatant harvested from B.95-8 cultures treated with PAA, as compared with the control cultures. Electron microscopic studies indicated the presence of virus particles in B.95-8 control cells and their almost complete absence in the PAA-treated cells.
mesh_terms: D000956:Antigens, Viral; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line; D002472:Cell Transformation, Viral; D004854:Herpesvirus 4, Human / Q000254:growth & development* / Q000276:immunology; D006801:Humans; D008214:Lymphocytes; D009943:Organophosphorus Compounds / Q000494:pharmacology*; D010746:Phosphonoacetic Acid / Q000494:pharmacology*
chemical_list: D000956:Antigens, Viral; D009943:Organophosphorus Compounds; D010746:Phosphonoacetic Acid