Tamoxifen-dependent, inducible Hoxb6CreERT recombinase function in lateral plate and limb mesoderm, CNS isthmic organizer, posterior trunk neural crest, hindgut, and tailbud.

Tamoxifen-dependent, inducible Hoxb6CreERT recombinase function in lateral plate and limb mesoderm, CNS isthmic organizer, posterior trunk neural crest, hindgut, and tailbud.
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DOI:
10.1002/dvdy.21846
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发表时间:
2009-02
影响因子:
2.5
通讯作者:
Macken, Susan
Macken, Susan
中科院分区:
生物学3区
文献类型:
--
作者:
Nguyen, Minh-Thanh;Zhu, Jianjian;Nakamura, Eiichiro;Bao, Xiaozhong;Macken, Susan

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使用Cre-lox技术在小鼠中产生条件突变等位基因的能力促进了在不同时间在多个发育过程中发挥关键作用的基因的分析。我们使用转基因Hoxb 6启动子驱动他莫昔芬依赖性Cre重组酶表达在几个发展中的系统,作为主要模型,阐明诱导相互作用和机制的形态发生,包括侧板中胚层和后代肢芽,神经嵴祖细胞的神经管,尾芽,和中枢神经系统峡组织者。Hoxb 6CreERT系在单次他莫昔芬剂量后在短时间窗内提供非常快速和完全的重组,从而允许准确评估基因功能的精确时间要求。从Hoxb 6CreERT系培养的胚胎细胞在他莫昔芬暴露后也显示出快速的离体重组。因此,Hoxb 6CreERT线提供了一个有价值的工具,用于分析基因功能,以及谱系追踪研究,使用遗传细胞标记,在几个发展中的系统。
The ability to generate conditional mutant alleles in mice using Cre-lox technology has facilitated analysis of genes playing critical roles in multiple developmental processes at different times. We used a transgenic Hoxb6 promoter to drive tamoxifen-dependent Cre recombinase expression in several developing systems that serve as major models for elucidating inductive interactions and mechanisms of morphogenesis, including lateral plate mesoderm and descendant limb buds, neural crest progenitors of the neural tube, tailbud, and CNS isthmic organizer. The Hoxb6CreERT line gives very rapid and complete recombination over a short time window after a single tamoxifen dose, allowing precise time requirements for gene function to be assessed accurately. Embryonic cells cultured from the Hoxb6CreERT line also display rapid recombination ex vivo after tamoxifen exposure. Hence, the Hoxb6CreERT line provides a valuable tool for analyzing gene function, as well as lineage tracing studies using genetic cell marking, in several developing systems.
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