Isl1 and Ldb co-regulators of transcription are essential early determinants of mouse limb development.

Isl1 and Ldb co-regulators of transcription are essential early determinants of mouse limb development.
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DOI:
10.1002/dvdy.23761
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发表时间:
2012-04
影响因子:
2.5
通讯作者:
Westphal, Heiner
Westphal, Heiner
中科院分区:
生物学3区
文献类型:
--
作者:
Narkis, Ginat;Tzchori, Itai;Cohen, Tsadok;Holtz, Alex;Wier, Eric;Westphal, Heiner

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发育中的肢体是研究模式形成和信号转导的极好模型。许多在肢芽形成后调节肢体生长和形成的关键基因现在已经众所周知。然而,关于控制肢体起始和早期生长阶段的细节仍有待确定。这份报告的重点是遗传事件,铺平了道路,建立一个后肢芽。Fgf 10和Tbx对肢芽分化的早期阶段至关重要。在这里,我们表明,在没有Isl 1或Ldb 1/2没有后肢芽的发展。Fgf 10在芽间充质中的表达依赖于Isl 1及其Ldb共调节因子。因此,Isl 1和Ldb转录的共同调节因子是小鼠肢体发育的重要早期决定因素。Isl 1/Ldb复合物调节Fgf 10以协调后肢形成的最早阶段。
The developing limb has served as an excellent model for studying pattern formation and signal transduction in mammalians. Many of the crucial genes that regulate growth and patterning of the limb following limb bud formation are now well known. However, details regarding the control of limb initiation and early stages of outgrowth remain to be defined. This report is focused on genetic events that pave the way for the establishment of a hindlimb bud. Fgf10 and Tbx are crucial for early phases of limb bud initiation. Here we show that in the absence of Isl1 or of Ldb1/2 there is no hindlimb bud development. Fgf10 expression in the bud mesenchyme is dependent on Isl1 and its Ldb co-regulators. Thus, Isl1 and the Ldb co-regulators of transcription are essential early determinants of mouse limb development. Isl1/Ldb complexes regulate Fgf10 to orchestrate the earliest stages of hindlimb formation.
DOI: 10.1242/dev.02001
发表时间: 2005-10-01
期刊: DEVELOPMENT
影响因子: 4.6
作者:
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