摘要
用肿瘤细胞免疫山羊,取脾经匀浆透析法制备抗肿瘤特异性转移因子(S~TF),并观察了S~TF在体内外对淋巴因子激活的杀伤细胞(LAK)细胞活性及LAK细胞特异细胞毒作用及对荷瘤小鼠生存期的影响。结果显示,S-TF在体内外均能显著增加荷瘤宿主的LAK活性及LAK特异细胞毒作用,早期单独应用可明显延长荷瘤小鼠生存期,与LAK/IL-2联合应用可明显地延长荷瘤小鼠生存期,并可治愈部分荷瘤小鼠(3/10),其治疗效果明显优于LAK/IL-2,原因可能是S-TF能诱导LAK细胞为TIL样细胞,明显增加LAK细胞对肿瘤细胞的杀伤作用。提示S-TF能有效地提高LAK/IL-2过继治疗效果。
Anti tumor specific transfer factor (S TF) was extracted by means of disruption dialysis from goats immunized with tumor cells suspension. Its effects on LAK activity and LAK specific cytotoxicity to tumor cells both in vivo and in vitro as well as the survival time of mice bearing S180 cells were observed. The results showed that S TF could significantly enhance the LAK activity and LAK specific cytotoxicity to tumor cells of tumor host both in vivo and in vitro . It could significantly prolong the survival time and cure some of the mice by S TF alone. Its curative effect was much better when it was used in combination with LAK/IL 2. The reason may be that S TF can induce LAK cells into cells like TIL, and increase very markedly the LAK cytotoxicity to tumor cells.It suggests that S TF can increase the value of LAK/IL 2 in immunotherapy of tumor.
出处
《解放军医学杂志》
CSCD
北大核心
1996年第3期184-186,共3页
Medical Journal of Chinese People's Liberation Army
关键词
肿瘤
免疫疗法
S-TF
LAK/IL-2
transfer factor
mice tumor
lymphokine activated killer cell
immunotherapy