Correlation between adriamycin-induced augmentation of interleukin 2 production and of cell-mediated cytotoxicity in mice.
Based on the observation that spleen cells from Adriamycin-treated mice could develop augmented levels of cytotoxic T-lymphocyte activity in response to heat-treated and/or X-irradiated alloantigens, it was postulated that modulations in soluble mediators could be involved in this phenomenon. In fact, in this study Adriamycin-induced increases in the levels of prostaglandin E2 and interleukin 2 activity have been observed with isolated cells. The "interleukin 2-like" activity was indistinguishable from that of partially purified interleukin 2 in terms of ability to restore responsiveness to experimentally inhibited primary alloantigen response cultures and to maintain long-term cultures of activated T-cells. Furthermore this latter activity was completely ablated by antiinterleukin 2 monoclonal antibody. While the modification in prostaglandin E2 production did not appear to play a role in determining augmentation of cytotoxic T-cell activity, the modification in interleukin 2 production was consistent with the possibility that this is a primary mechanism of Adriamycin-induced augmented cell-mediated cytotoxicity.[1]References
- Correlation between adriamycin-induced augmentation of interleukin 2 production and of cell-mediated cytotoxicity in mice. Ehrke, M.J., Maccubbin, D., Ryoyama, K., Cohen, S.A., Mihich, E. Cancer Res. (1986) [Pubmed]
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