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  • Title: Anti-tumour effects of interleukin 1 beta: in vivo induction of immunity to B16 melanoma, a non-immunogenic tumour.
    Author: Neville ME, Pezzella KM.
    Journal: Cytokine; 1994 May; 6(3):310-7. PubMed ID: 8054488.
    Abstract:
    The anti-tumour properties of interleukin 1 beta (IL-1 beta) were examined using an intradermal B16 murine melanoma surgical model. B16 cells were injected intradermally on the right ventral side and surgery was performed on days 10-20 to remove the primary tumours. IL-1 beta or vehicle was administered prior to surgery for 5-7 consecutive days. In mice which received only injections of vehicle, survival ranged between 0 and 30% when measured on day 120 after implantation of B16 cells. Mice died of metastases and growth of B16 cells in the thoracic lymph nodes. When mice without metastases were rechallenged with viable B16 cells, only one out of 22 mice (5%) failed to develop tumours. No significant immunity to B16 cells was detected in this group of mice. In contrast, in mice which received injections of IL-1 beta, survival ranged between 70-100% on day 120 after implantation of B16 cells. When IL-1 beta treated mice were rechallenged with viable B16 cells on day 120, 20 out of 32 (63%) mice failed to develop B16 tumours suggesting that some of these mice had immunity to B16 melanoma cells. Moreover, mice with immunity to B16 cells did develop tumours when injected with another syngeneic tumour, MCA 105. In vitro specific immune responses were also demonstrated in spleen cells and sera from mice treated with IL-1 beta, but not in the spleen cells or sera of mice that received only vehicle.(ABSTRACT TRUNCATED AT 250 WORDS)
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