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Experimeatal study of synergistic antitumor effects of CPPS and IL-2 on Murine S180 tumor in vivo.

Wu Min,et al. Department of Microbiology,the Miltary Medical institute of Lanzhou Command,PLA. Lanzhou 730020  
In this paper,we studied in vivo anti-tumor effects of Codonopsis pilosula polysacarides (CPPS) and Inteleukin2 (IL-2) on murine S180 tumor.CPPS and IL-2 were administrated in the dose of 400 mg ?kg-1×7 day (ip) or 2 500 U·kg-1×7day (sc) respectively.When used alone,either of them could reduce the weights of murine S180 tumor; when used together,the synergistic antitumor effect was found.It was also found that both CPPS and IL-2 could enhance Con-A stimulated proferation and NK activity of splenocytes in S180 tumor bearing mice.The results suggested that CPPS and IL-2 have the synergistic antitumor effect in vivo and one of the macha-nisms of this effect may relate to the enhancement of the immune functions of the body.
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