Encephalomyocarditis Virus 표면항원의 단일항체 생산세포주의 크론과 이의 면역학 및 생화학적 연구(Ⅱ) = Cloning of Monoclonal Antibody-Producing Cell Line to Encephalomyocarditis Viral Surface Antigen and Immunological and Biochemical Properties of the Monoclonal Antibody(Ⅱ)

다국어 초록 (Multilingual Abstract)

To see whether there is any differencies in RNA dependent DNA polymerase activities between monoclonal antibody-producing hydridoma cells and non-producing hybridoma cells, Balb/c female mice were immunized with the purified viral surface protein of D-variant of encephalomyocarditis virus and then fused with myeloma cells (NR-1). After cloring, monoclonal antibody-producing hybridoma cell lines were separated from non-producing hydridoma cell lines. RNA-dependent DNA polymerase activities were measured in the supernatant of monoclonal antibody-producing hybridoma clones and non-producing hybr idoma clones, and myeloma cells as control, Monoclonal antibody-producing hybridoma cells showed statistically significant higher activity as compar compare to that of nonproducing hybridoma cells. To find whether RNA-dependent DNA polymerase releasing cells aware secreting or budding C-type virus particles, those cells were examined with electron microscope.
The hybridoma cell which secrete large amount of RNA-dependent DNA polymerase shows significant number of extracellular C-type virus particles. In constrast, non-producing hydridoma cells contains a lot of intracellular C-type virus particles. It is concluded that monoclonal antibody-producing hydridoma cells released particles. It is concluded that monoclonal antibody-producing hydridoma cells released significant amount of RNA-dependent DNA polymerase land extracellular C-type virus particles, while non-producing hydridoma cells showed less release of RNA-dependent DNA polymerase and contains intracellular C-type virus particles.