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  • Title: Augmentation of murine lymphokine (rIL-2)-activated killer cell activity by indomethacin.
    Author: Chao TY, Ohnishi H, Chu TM.
    Journal: Mol Biother; 1989; 1(6):318-22. PubMed ID: 2610950.
    Abstract:
    The effect of indomethacin on murine lymphokine-activated killer (LAK) cell activity was investigated using a natural killer-resistant, spontaneously developed, weakly immunogenic, and highly tumorigenic syngeneic murine mammary adenocarcinoma, mimicking that of human disease, as the target. When used in combination with human recombinant interleukin-2 (rIL-2), indomethacin was found to augment LAK cell activity, which was generated from culture of the normal mouse splenocytes with rIL-2, as compared to that with rIL-2 alone. This increase in LAK cell activity was shown to be indomethacin dose-dependent, and was demonstrated only when indomethacin was added to the rIL-2-containing medium at the beginning of culture. The enhancement of LAK cell activity by indomethacin was abrogated when the nylon-wool nonadherent "macrophage-poor" splenocytes were incubated with rIL-2 plus indomethacin. These results indicated that the rIL-2-induced LAK cell activity generated from murine splenocytes could be augmented by indomethacin, and the macrophages may be involved as the mediator.
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