在表达多细胞瘤病毒中期T基因的嵌合体小鼠中的胚胎致死性和内皮瘤
R L Williams1, S A Courtneidge, E F Wagner
1European Molecular Biology Laboratory, Heidelberg, Federal Republic of Germany.
Cell
|January 15, 1988
概括
多瘤病毒中T瘤基因在小鼠中引起血管瘤. 胚胎干细胞为研究瘤基因对胚胎发生和瘤形成的影响提供了一个有价值的系统.
科学领域:
- 在瘤学瘤学.
- 发育生物学 发展生物学
- 病毒学 病毒学
背景情况:
- 聚瘤病毒中部T瘤基因与细胞转化有关.
- 了解胚胎发育期间的癌基因功能对于癌症研究至关重要.
研究的目的:
- 为了研究多瘤病毒中 T 瘤基因的体内影响.
- 探索胚胎干细胞 (ES) 对于研究瘤基因诱导的发育异常的有用性.
主要方法:
- 利用复制缺陷的逆转录病毒向小鼠和ES细胞输送中间T瘤基因.
- 通过将ES细胞注入胚胎囊中,生成了嵌合体胚胎.
- 从诱导瘤中建立了内皮细胞系.
主要成果:
- 对小鼠的直接注射导致了血液瘤的快速形成.
- 中间T表达ES细胞的化学胚胎由于血管瘤而表现出中产停产.
- 衍生出的内皮细胞系具有瘤性,并表达了·维勒布兰德因子.
结论:
- 中T瘤基因在内皮细胞中作为单阶段瘤基因起作用.
- 在研究瘤基因驱动的胚胎发生和瘤发育方面,ES细胞是一个有价值的模型.
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