多抗甲素对S_（180）荷瘤小鼠红细胞免疫功能的影响

用动物实验方法建立Ｓ１８０荷瘤小鼠模型，观察荷瘤小鼠红细胞免疫功能的改变及多抗甲素对Ｓ１８０小鼠红细胞免疫功能的影响。结果发现：①荷瘤小鼠ＲＢＣ－Ｃ３ｂ受体花环率下降，ＲＢＣ－ＩＣ花环率上升；血清中ＲＢＣ－Ｃ３ｂ受体免疫粘附促进因子活性下降，而抑制因子活性上升。②多抗甲素治疗后，荷瘤小鼠ＲＢＣ－Ｃ３ｂ受体花环率、ＲＢＣ－ＩＣ花环率均明显上升；血清中ＲＢＣ－Ｃ３ｂ受体免疫粘附促进因子活性上升，抑制因子活性下降。提示红细胞免疫功能的检测可作为肿瘤发生发展的指标之一，多抗甲素可恢复和提高荷瘤机体的红细胞免疫功能。

INFLUENCE OF POLYACTIN A ON THE THROCYTE TUMOR－ERYTHROCYTE ROSETTE FORMING OF SARCOMA 180 BEARING MICE

Three tests were used to assay the tumor-erythrocyte rosette forming rate for Sarcoma 180 (S180) bearing mice after abdominal injection or polyactin A.The results showed that the forming rates of the direct tumor-erythrocyte rosette,enhanced tumor-erythrocyte rosette, cooperative tumor-erythrocyte rosette in the tumor bearing mice group decreased by 22.07 %,25.87% and 24. 90% respectively,compared with those in the normal group. he difrerences were all remarkable(P<0. 01).After injection of polyactin A into the tumor bearing mice,the forming rates increased by 11. 64%, 16. 77% and 13.56% respectively.The dirference was also remarkable. These suggest that polyactin A can improve the adherence of erythrocytes and serum enhancing factors to tumor cells,and their cooperative adherence, thus strengthen the immune function of erythrocytes.

多抗甲素对荷S180瘤小鼠红细胞免疫功能的影响

观察了荷Ｓ１８０瘤小鼠红细胞免疫功能的改变及多抗甲素治疗对其红细胞免疫功能的影响。试验分三组，即正常组、肿瘤组、多抗甲素治疗肿瘤组。荷瘤１０天后，检测各组红细胞免疫功能各项指标。结果显示：荷瘤小鼠的红细胞免疫功能较正常对照组全面下降（Ｐ＜０．０１）。表现为：１．ＲＢＣ－Ｃ３ｂ受体花环率下降，ＲＢＣ－ＩＣ花环率上升，为继发性红细胞Ｃ３ｂ受体免疫粘附功能下降。２．血清中红细胞Ｃ３ｂ受体免疫粘附促进因子活性下降，而抑制因子活性上升。３．红细胞免疫粘附肿瘤细胞能力下降。经多抗甲素治疗后，可使荷瘤小鼠红细胞抗肿瘤免疫功能较未治疗组全面上升（Ｐ＜０．０１）。提示荷瘤小鼠的红细胞免疫功能低下。