FGF-regulated Etv genes are essential for repressing Shh expression in mouse limb buds.

FGF-regulated Etv genes are essential for repressing Shh expression in mouse limb buds.
复制标题

DOI:
10.1016/j.devcel.2009.02.008
复制
发表时间:
2009-04
期刊:
影响因子:
11.8
通讯作者:
Sun, Xin
Sun, Xin
中科院分区:
生物学1区
文献类型:
--
作者:
Zhang, Zhen;Verheyden, Jamie M.;Hassell, John A.;Sun, Xin

文献摘要

参考文献

被引文献

相似文献

脊椎动物肢体的前后(A-P)模式是由声波刺猬(SHH)信号控制的,而后肢芽中Shh表达的精确限制对于其极化作用至关重要。成纤维细胞生长因子 (FGF) 信号是近远端 (P-D) 肢体生长的关键控制因子,已知可促进后肢芽中的 Shh 表达。在这里,我们表明,条件性敲除小鼠中 FGF 激活的转录因子基因 Etv4 和 Etv5 导致前肢芽中异位 Shh 表达,以及轴前多指(PPD)骨骼表型。这些意想不到的结果表明 ETV4 和 ETV5 在 FGF 信号下游发挥作用,抑制前肢芽中的 Shh 表达。这一发现阐明了沿着 A-P 和 P-D 轴协调肢体发育的机制的一个新颖方面。
Anterior-posterior (A-P) patterning of the vertebrate limb is controlled by sonic hedgehog (SHH) signaling, and the precise restriction of Shh expression to the posterior limb bud is essential for its polarizing effect. Fibroblast growth factor (FGF) signaling, a key control of proximal-distal (P-D) limb outgrowth, is known to promote Shh expression in the posterior limb bud. Here we show that conditional knockout of FGF-activated transcription factor genes Etv4 and Etv5 in mouse led to ectopic Shh expression in the anterior limb bud, and a preaxial polydactyly (PPD) skeletal phenotype. These unexpected results suggest that ETV4 and ETV5 act downstream of FGF signaling to inhibit Shh expression in the anterior limb bud. This finding elucidates a novel aspect of the mechanism coordinating limb development along the A-P and P-D axes.
DOI: 10.1006/dbio.2001.0346
发表时间: 2001-08-15
影响因子: 2.7
作者:
Chiang, C;Litingtung, Y;Fallon, JF
通讯作者: Fallon, JF
DOI: 10.1128/mcb.20.24.9337-9345.2000
发表时间: 2000-12-01
影响因子: 5.3
作者:
Laing, MA;Coonrod, S;Hassell, JA
通讯作者: Hassell, JA
DOI: 10.1016/s0925-4773(00)00492-5
发表时间: 2001-01-01
影响因子: 2.6
作者:
Kraus, P;Fraidenraich, D;Loomis, CA
通讯作者: Loomis, CA
DOI: 10.1038/nature06876
发表时间: 2008-05-15
期刊: NATURE
影响因子: 64.8
作者:
Mariani, Francesca V.;Ahn, Christina P.;Martin, Gail R.
通讯作者: Martin, Gail R.
DOI: 10.1016/0092-8674(94)90030-2
发表时间: 1994-12-16
期刊: CELL
影响因子: 64.5
作者:
LAUFER, E;NELSON, CE;TABIN, C
通讯作者: TABIN, C