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含TCGF/IL-2制剂的肿瘤抑制作用。

Tumour inhibitory effects of TCGF/IL-2/-containing preparations.

作者信息

Bubeník J, Indrová M, Perlmann P, Berzins K, Mach O, Kraml J, Toulcová A

出版信息

Cancer Immunol Immunother. 1985;19(1):57-61. doi: 10.1007/BF00199313.

Abstract

Supernatants from ConA-stimulated rat spleen cell cultures and from cultures of PMA-stimulated murine lymphoma subline EL-4TF were found to contain TCGF and to inhibit growth of a transplantable, MC-induced sarcoma MC11 in syngeneic mice. Tumour-inhibitory effects of the supernatants were dependent on local and repeated administration. Prior to use of the supernatants obtained from PMA-stimulated EL-4TF cell cultures, the dialysable PMA had to be removed; contamination with PMA was found to abolish the tumour-inhibitory effect of the supernatants and to produce enhancement of tumour growth. A significant tumour-inhibitory effect has also been obtained with partially purified TCGF prepared from culture supernatants of cloned EL-4TF cells by ammonium sulphate precipitation, ion-exchange (FPLC) chromatography, and AcA 44 Ultrogel filtration.

摘要

发现来自刀豆蛋白A刺激的大鼠脾细胞培养物以及佛波酯刺激的小鼠淋巴瘤亚系EL-4TF培养物的上清液含有白细胞介素-2,并能抑制同基因小鼠中一种可移植的、甲基胆蒽诱导的肉瘤MC11的生长。上清液的肿瘤抑制作用取决于局部和重复给药。在使用从佛波酯刺激的EL-4TF细胞培养物获得的上清液之前,必须去除可透析的佛波酯;发现佛波酯污染会消除上清液的肿瘤抑制作用并导致肿瘤生长增强。通过硫酸铵沉淀、离子交换(快速蛋白质液相色谱)色谱法和AcA 44琼脂糖凝胶过滤从克隆的EL-4TF细胞培养上清液中制备的部分纯化白细胞介素-2也获得了显著的肿瘤抑制作用。

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