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- natural killing activity 自然杀伤活性
- EPN and SEPN evidently enlarged the thymus and splenic index in FM?1-infected mice,promoted lymphocyte proliferation and killing activity of NK cells. EPN和SEPN均能不同程度地提高染毒小鼠的胸腺指数和脾脏指数,显著地促进小鼠淋巴细胞的增值反应,提升小鼠NK细胞的杀伤活性。
- The in vivo antiviral activity of EPN and SEPN was probably realized via the enhancement of lymphocyte proliferation and killing activity of NK cells. 新月菱形藻胞外多糖及其硫酸酯可能通过促进淋巴细胞增值,增强NK细胞的杀伤活力实现对FM1病毒的抑制作用。
- Objetive To explore ultrastructure of the established CD3AK cell line and its characteristics related to killing activity. 目的观察CD_3AK细胞系的超微结构及其与杀伤功能相关的特征。方法用透射电镜观察有代表性的细胞的超薄切片。
- Methods MNCs were isolated with Ficoll, and the dectection included methods of observing Trpanblue dying, killing activity to K562 cells, and CFU total number. 方法冻存前后脐血单个核细胞通过台盼蓝拒染率、对K562杀伤活性及总集落形成数来进行检测。
- Con-elusion:The suicide gene therapy system using an ovarian-specific promoter by polyethylenimine mediated transfection has a targeting killing activity on human ovarian cancer. 结论:多聚乙烯基亚胺介导的卵巢特异性启动子调控下的自杀基因对卵巢癌有靶向杀伤作用。
- Evolution is part of nature, and nature kills. 进化是自然的一部分，弱肉强食。
- The results showed that there is apparent positive dependent relationship between the killing activity of LAK cell and IL-2 dosage,and negative dependent relationship between the killing activity of LAK cell and the cell density in culture. 证明LAK细胞的NK活性和LAK活性与IL-2有非常明显的正向依赖关系,与培养细胞密度有明显的负向依赖关系。
- natural killing cell-activating factor 天然杀伤细胞激活因子
- Methods The proliferation assay,NK cell killing activity assay and immunologic fluorescence double label technique were used to study four sear effect on T cell immunologic function. 方法 经增殖试验、NK杀伤活性试验及免疫荧光双标记方法研究了 4种血清对T细胞免疫功能的影响。
- Methods: After different doses of WAK were given to mice ig, its effects on delayed type hypersensitivity (DTH), hemolysin production, NK and LAK cell killing activity were observed. 方法:通过给小鼠灌胃WAK,观察其对免疫低下小鼠迟发性超敏反应、溶血素生成及对小鼠NK细胞、LAK细胞杀伤活性的影响。
- There are two peaks of killing activity of the splenic LAK cell supernatant before and after eleven day cell culture. The first peak was remarkably consistent with high BLT-esterase activity in the supernatant. 脾LAK细胞培养上清有前后两个杀伤活性高峰，以第11d为界，第一个活性高峰与上清中BLT酯酶活性呈正相关。
- natural kill cell stimulating factor 自然杀伤细胞刺激因子
- natural kill cell tumor-recognition molecule NK细胞肿瘤识别分子
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- After coculturing for 24 hrs with IL 2,the tumor killing activities of ABM to K562 cells and to HL 60 cells were identical,while the activity of ACB to K562 cells was higher than that to HL 60 cells. 骨髓及脐血细胞经IL－2刺激24小时后即可产生对K562细胞及HL－60细胞的杀伤作用，ACB对K562细胞的杀伤率高于对HL－60细胞的杀伤率； 72小时后ACB对K562细胞和HL－60细胞杀伤率接近；
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- The tumor specific CTL was generated form activated autologous T cell by DC vaccine loaded with tumor antigen, and the killing activity of CTL to CT26 cells was tested by the lactate dehydrogenase (LDH) release assay in vitro. 负载肿瘤抗原的DC疫苗激活同源T淋巴细胞产生细胞毒性T淋巴细胞(CTL),采用乳酸脱氢酶(LDH)4h释放法检测CTL在体外对CT26细胞的杀伤活性;
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
