论文部分内容阅读
报导数据阐明,人肿瘤细胞衍生的抑制物活性影响正常免疫功能。这些研究在揭示肿瘤生长特征以及它和宿主的关系方面是很重要的。抑制活性大多能从各种肿瘤细胞系或新鲜肿瘤细胞的培养液中检出。其中有些因子是本身成份产生的,有些是受到刺激后产生的。这些因子的数量一般很少,并常常妨碍它们的分离和详细的特征鉴定。
Reported data indicate that human tumor cell-derived inhibitor activity affects normal immune function. These studies are important in revealing the nature of tumor growth and its relationship to the host. Most inhibitory activity can be detected from various tumor cell lines or fresh tumor cells in culture. Some of these factors are caused by their own ingredients and some are stimulated. The number of these factors is generally small and often prevents their separation and detailed characterization.