作者: Hideo Yagita , Hisaya Akiba , Nobuhiko Kayagaki , Haruki Okamura , Kenji Nakanishi
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摘要: TNF-related apoptosis-inducing ligand (TRAIL), a new member of TNF family, induces apoptotic cell death various tumor cells. We recently showed that TRAIL mediates perforin- and Fas (FasL)-independent cytotoxic activity human CD4+ T clones. In the present study, we investigated expression function on murine lymphocytes by using newly generated anti-murine mAbs. Although freshly isolated T, B, or NK cells did not express detectable level their surface, remarkable was induced preferentially CD3- NK1.1+ after stimulation with IL-2 IL-15. contrast, IL-18, whereas it efficiently potentiated lymphokine-activated killer addition to perforin inactivation neutralization FasL anti-FasL mAb, anti-TRAIL mAb needed for complete inhibition IL-2- IL-15-activated cytotoxicity against mouse fibrosarcoma L929 target cells, which were susceptible both TRAIL. These results indicated preferential its potential involvement in activity.