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Subjection of EL-4-leukemia cells to hydrostatic pressure of 1200-1500 atm for 15 min increased their weak basal immunogenicity to a potent practical level. Injection of such pressure-treated and irradiated EL-4 cells into syngeneic naive C57Bl/6 mice significantly delayed tumor development and increased survival after subsequent challenge with untreated(More)
The lack of affordable techniques for gene transfer in birds has inhibited the advancement of molecular studies in avian species. Here we demonstrate a new approach for introducing genes into chicken somatic tissues by administration of a lentiviral vector, derived from the feline immunodeficiency virus (FIV), into the chorioallantoic membrane (CAM) of(More)
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