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采用~(125)Ⅰ—udD标记肿瘤靶细胞RNA释放试验,对体内注射SpA纯品或SpA菌体后小鼠脾细胞自然杀伤(NK)活性进行了观测,结果表朋,SpA或SpA菌体经皮下或腹腔注射均可增强小鼠细胞NK活性,SpA菌体所诱导的NK活性似乎高于SpA纯品所诱导的NK效应。
The ~(125)I-udD-labeled tumor target cell RNA release assay was used to observe the natural killer (NK) activity of spleen cells in SpA-injected or SpA-infected mice in vivo. Subcutaneous or intraperitoneal injection could enhance the NK activity of mouse cells. The NK activity induced by SpA cells appeared to be higher than that induced by SpA pure product.