细胞溶解
效应器
生物
自然杀伤细胞
分子生物学
细胞培养
阿尔法(金融)
脾脏
体外
淋巴因子激活杀伤细胞
生物测定
细胞毒性
免疫学
细胞毒性T细胞
白细胞介素12
遗传学
医学
护理部
患者满意度
结构效度
作者
Mona Hansson,Klas Karre Tibor Bakacs,Rolf Kiessling,George Klein
出处
期刊:Journal of Immunology
[The American Association of Immunologists]
日期:1978-07-01
卷期号:121 (1): 6-12
被引量:52
标识
DOI:10.4049/jimmunol.121.1.6
摘要
Natural killer (NK) cells can kill certain syngeneic, allogeneic and xenogeneic tumor targets in short-term 51Cr release assays. In the present study, intra- and interspecies NK activity was analyzed. Ten mouse and five human tissue culture lines were used. In direct cytolytic assays with mouse spleen cells or human PBL effectors, intraspecies was much stronger than interspecies reactivity, as a rule. A certain interspecies activity was obtained, stronger in mouse anti-human (M alpha H) than in human anti-mouse (H alpha M) combinations. In the H alpha M system, activity was associated with the same type of PBL-derived non-B-non-T cell fraction as in the intraspecies H alpha H system. The non-B-non-T cell nature of the M alpha H killer cell has been demonstrated previously. Nonlabeled tumor cells were allowed to compete with isotope-labeled targets in intra- and interspecies cytolytic NK tests. NK-sensitive tumor lines of the same species were superior to xenogeneic competitors in both M alpha M and H alpha H tests. In the M alpha M assay, the competing ability of the same human tumors varied, depending on the genotype of the mouse effector cells. None of the human lines tested competed effectively with strain CBA effectors but some showed a certain competition with C57BL effectors. In the H alpha H assay, strong competition was seen with two of the 10 xenogeneic mouse tumors tested.
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