黄芪多糖、刺五加多糖和枸杞多糖在体内对LAK细胞抗肿瘤活性的调节作用

Priming Effect of Intraperitoneally Injected Astragalus, Acanthopanax senticosus and Lycium barbarum Polysaccharides on the Induction of Lymphokine- activated Killer Cells in Vitro

黄芪多糖(APS)、刺五加多糖(PAS)和枸杞多糖(LBP)5-10 mg/kg体重分别腹腔注射C57BL/6小鼠,发现3种多糖均可明显促进小鼠脾细胞增殖。将这种脾细胞以2×10~6/ml经125-1000 U/ml IL-2体外诱导4天,用[^(125)I]UdR释放分析测LAK活性,发现注射APS组小鼠脾细胞LAK活性比注射生理盐水(NS)组提高70％-120％。注射PAS组提高20％-90％,注射LBP组提高26％-80％。体外IL-2用量可分别降低75％、50％、50％。LBP注射老龄小鼠可显著促进脾细胞增殖外,LAK活性可提高120％-200％,体外IL-2用量可降低75％以上。

A single intraperitoneal injection (ip) of Astragalus polysaccharide (APS), polysaccharide of Acanthopanax senticosus (PAS) and Lychtm barbamm polysaccharide (LBP) at a dose of up to 10 mg/kg body weight could render splenocytes of adult C57BL/6 mice proliferate significantly higher than normal saline (NS)control. Splenocytes of LBP treated aged mice were 4 times higher than those of NS control of aged mice. The splenocytes of the mice treated with APS, PAS, LBP and NS were incubated with 125 - 1 000 U/ml rIL-2 for 4d in vitro, respectively. The cytotoxicity of LAK cells from the splenocytes of APS, PAS and LBP treated adult mice, in 18 h [125I]UdR release assay, were 70% ~ 120%, 20% -90%, 26% ~ 80% higher than that of the NS control, respectively. The dose of rIL-2 was reduced 75%, 50%, 50%, respectively, in vitro. The cytolytic activities of LAK cells from the splenocytes of LBP treated aged mice were 120%-200% higher than those of the NS control, and the dosage of rIL-2 was decreased more than 75% in vitro.