... of B19 NS1-induced liver cytotoxicity. MATERIALS AND METHODS Cell Culture. Spodoptera frugiperda-derived SF9 cells were cultured in spinner flasks using BioWhit-taker® Insect-XPress cell ... Azzi A. Human parvovirus B19 experimental infection in human fibroblasts and endothelial cells cultures. Virus Res 2005; 114:1-5. 48. Zhi N., Mills IP, Lu J, Wong S, Filippone C, Brown KE. Mole-cular ... Parvovirus B19 Genotype Specific Amino Acid Substitution in NS1 Reduces the Protein’s Cytotoxicity in Culture Violetta Kivovich 1,2 , Leona Gilbert 2, Matti Vuento 2 and Stanley J. Naides 3...