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大鼠细胞与HT 1080人纤维肉瘤细胞的体细胞杂种中大鼠染色体的分离。

Segregation of rat chromosomes in somatic cell hybrids between rat cells and HT 1080 human fibrosarcoma cells.

作者信息

D'Ancona G G, Croce C M

出版信息

Hum Genet. 1979;53(1):17-21. doi: 10.1007/BF00289444.

Abstract

We produced somatic cell hybrids between HT 1080-6TG human fibrosarcoma cells and either rat white blood cells (WBC) or cells directly derived from rat spleen. Karyologic and isozyme analyses of hybrid cells indicated that they preferentially lose rat chromosomes. Hypoxanthine-aminopterine thymidine-selected hybrid clones expressing rat hypoxanthine phosphoribosyltransferase (HPRT), glucose-6-phosphate dehydrogenase (G6PD), and phosphoglycerate kinase (PGK) and containing the rat X chromosome were counterselected in a medium containing 30 micrograms/ml of 6-thioguanine. Concordant loss of the rat X chromosome and of the expression of rat HPRT and G6PD was observed in the hybrid clones.

摘要

我们制备了HT 1080 - 6TG人纤维肉瘤细胞与大鼠白细胞(WBC)或直接来源于大鼠脾脏的细胞之间的体细胞杂种。杂种细胞的染色体组学和同工酶分析表明,它们优先丢失大鼠染色体。在含有30微克/毫升6 - 硫鸟嘌呤的培养基中对表达大鼠次黄嘌呤磷酸核糖转移酶(HPRT)、葡萄糖-6-磷酸脱氢酶(G6PD)和磷酸甘油酸激酶(PGK)并含有大鼠X染色体的次黄嘌呤-氨基蝶呤-胸腺嘧啶核苷选择的杂种克隆进行反选择。在杂种克隆中观察到大鼠X染色体以及大鼠HPRT和G6PD表达的一致性丢失。

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