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Regulatory Mechanism of Anti-Idiotypic Antibody on Anti-DNA Ab Production of Hybridoma Cells

Other Title
Anti-idiotypic 항체가 Hybridoma 세포의 Anti-DNA 항체 합성을 조절하는 기전
박, 선; 박, 정수; 김, 형일; 주, 민경; 장, 영주; 윤, 정구; 김, 영태
Ajou medical journal, 1(1):123-132, 1996
Journal Title
Ajou medical journal; 아주의학
The regulatory mechanism of anti-idiotypic anti body(anti-id Ab) in the immune response is not fully

understood. It has been reported that anti-id Ab suppresses Ab production of lymphocytes or hybridoma cells

in vitro, but it does not affect the proliferation of cells or Ab secretion. We investigated whether or not polyclonal anti-id Ab regulates the production of anti-DNA Ab(IgG2a) in hybridoma cells. In addition, the effects of anti-id Ab on the proliferation of cells and on the transcription levels of Ig genes were studied to elucidate the cellular and molecular mechanisms for regulation of anti-DNA Ab production in hybridoma cells. The treatment of hybridoma cells with anti-id Ab resulted in an increase in the number of cells producing anti-DNA Ab. However, there was no significant difference in the proliferation rate and mRNA levels of Ig genes between hybridoma cells treated with anti-id Ab, and those treated with normal rabbit serum. These results and our previous data suggest that the number of hybridoma cells producing anti-DNA Ab by anti-id Ab is not directly related with the rate of proliferation of the cells. Furthermore, it appears that the number of hybridoma cells producing IgG class anti-DNA Ab is increased by anti-id Ab, whereas the number of hybridoma cells producing IgM class anti-DNA Ab is down-regulated by anti-id Ab.
Anti-idiotypic antibodyRegulationIg gene mRNA
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Journal Papers > School of Medicine / Graduate School of Medicine > Microbiology
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