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논문 기본 정보

자료유형
학술저널
저자정보
Park, Yuk-Pheel (Department of Biology, College of Natural Sciences, chungnam National University) Paik, Sang-Gi (Department of Biology, College of Natural Sciences, chungnam National University) Kim, Young-Sang (Department of Biochemistry, College of Natural Sciences, chungnam National University)
저널정보
한국통합생물학회 Korean journal of biological sciences Korean journal of biological sciences 제4권 제4호
발행연도
2000.1
수록면
381 - 388 (8page)

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Using a murine T cell hybridoma, activation-induced cell death (AICD) was studied. As an in vitro model system for the AICD, 1 cell hybridoma expressing TCR/CD3 complex was incubated onto the immobilized purified anti-CD3 antibody. The immobilized anti-CD3 antibody induced AICD effectively up to 40%. At 1-100 $\mu$M range of SNP, an exogenous source of nitric oxide (NO), the cell proliferation was not affected, but at 1 mM SNP, cell proliferation was significantly reduced. The AICD of T cell hybridoma was inhibited by exogenous NO at non-cytotoxic concentration, In the cells undergoing AICD, the expressions of caspase-3 and FasL were detected, but not iNOS. Similar result was recognized in the apoptosis induced by dexamethasone, an apoptosis-inducing agent. However, the conversion from the inactive form of caspase-3 (32 kDa) to the active form (17 kDa) was significantly reduced in the cells in AICD induced by anti-CD3 antibody, With the result of increased PARP cleavage in the cells, we propose that another PARP cleavage pathway not involving caspase-3 may function in the anti-CD3 antibody induced AICD in the T cell hybridoma.

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