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作 者:熊世钢[1] 陈毓仙[1] 吴爱如[1] 李艳芬[1] 石卫[1] 徐昕[1] 张友会[1]
机构地区:[1]中国协和医科大学中国医学科学院肿瘤医院肿瘤研究所,广州第一军医大学南方医院肿瘤科
出 处:《中华妇产科杂志》1995年第11期687-689,共3页Chinese Journal of Obstetrics and Gynecology
基 金:国家"八五"攻关课题
摘 要:观察人卵巢癌细胞株COC_1和COC_2来源的患者癌性腹水(AS_1,AS_2)、癌细胞无血清条件培养液(SFCM_1,SFCM_2)及荷瘤裸鼠血清(NS_1,NS_2)对植物血凝素(PIIA)和白细胞介素-2(IL-2)诱导的外周血单个核细胞(PBMC)增殖的作用,及与转化生长因子-β(TGF-β)的关系。结果:AS_1和AS_2对PBMC增殖有剂量依赖性抑制作用。SFCM和NS也具有明显抑制PBMC增殖的作用;但在浓度很低时,SFCM_2对PHA诱导,SFCM_1、NS_1和NS_2对IL-2诱导的PBMC增殖,具有一定促进作用。上述作用特点与TGF-β作用相似,并可被抗TGF-β中和抗体部分阻断。提示:人卵巢癌细胞可通过产生TGF-β,抑制宿主免疫。bjectives Our previous observation has demonstrated that human ovarian cell lines COC_1 and COC_2 are able to secrete transforming growth factor-beta (TGF-β) in serum-free culture, The effect of ovarian cancer prOduced-TGF-β was observed on phytohemagglutinin and interleukin-2-inducing prolif- eration of peripheral blood mononuclear cells. Methods The effects of COC_1 and COC_2 from patients' ascitic fluid (AS_1, AS_2), the serum-free conditioned medium (SFCM_1, SFCM_2) , and COC_1- and COC_2- bearing nude mice sera (NS_1, NS_2) on phytohemagglutinin ( PHA) and interleukin-2 (IL-2)-inducing peripheral blood mononuclear cell(PBMC) proliferation and their correlation with TGF-βwere observed and compared. Results It was shown that AS, SFCM and NS possessed inhibitory effects on PBMC prolifera- tion. But in very low concentrations,PHA-induced by SFCM2 andIL-2-induced by SFCM1as well as by NS_1 and NS_2 exerted promotive effects on PBMC proliferation. The above-mentioned SFCM effects similar to that of TGF-β, might be partially blocked by anti-TGF-β antibody. Conclusions The present results suggest that ovarian cancer cells may inhibit the host anti-tumor immunity through secreting TGF-β, which may be associated with the highly malignant biological be- havior of ovarian cancer and the threatening progressiveness of its clinical course.
分 类 号:R737.310.2[医药卫生—肿瘤]
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