Mouse-human somatic cell hybrids: loss of mouse and human chromosomes.

X Wang, M Fox, S Povey, J R Masters
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引用次数: 7

Abstract

Testicular germ cell tumors are unusual because they can be cured in over 80% of patients with combination chemotherapy. In order to identify chromosomes carrying genes controlling drug sensitivity, fusions were made between a mouse embryonal carcinoma (EC) cell line, F9, and a human bladder cancer cell line, MGH-UI. In contrast to some previous reports, interspecies hybrids of mouse EC cells with human cells were easy to produce. Six independent hybrids were cloned and grown for 10 further passages and karyotyped. Surprisingly, all the independent hybrids retained approximately 80% of the 40 mouse chromosomes and approximately 80% of the 83 human chromosomes. Despite the positive selection for mouse chromosomes and the absence of selection for human chromosomes, it appears that some of both sets of chromosomes are essential for these hybrids.

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小鼠-人类体细胞杂交:小鼠和人类染色体的缺失。
睾丸生殖细胞肿瘤是罕见的,因为80%以上的患者可以通过联合化疗治愈。为了鉴定携带控制药物敏感性基因的染色体,在小鼠胚胎癌(EC)细胞系F9和人膀胱癌细胞系MGH-UI之间进行了融合。与以往的一些报道相反,小鼠EC细胞与人类细胞的种间杂交很容易产生。克隆了6个独立的杂交种,并进行了10次传代和核型分析。令人惊讶的是,所有独立的杂交种保留了40条小鼠染色体中的大约80%和83条人类染色体中的大约80%。尽管小鼠染色体有正向选择,而人类染色体没有选择,但似乎两组染色体中的一些对这些杂交体是必不可少的。
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