Analysis of sphingosine-1-phosphate signaling mutants reveals endodermal requirements for the growth but not dorsoventral patterning of jaw skeletal precursors.
Analysis of sphingosine-1-phosphate signaling mutants reveals endodermal requirements for the growth but not dorsoventral patterning of jaw skeletal precursors.
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分析鞘氨醇1-磷酸信号传导突变体揭示了颌骨骨骼前体的生长,但没有背腹形图案。
DOI:
10.1016/j.ydbio.2011.12.010
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发表时间:
2012-02-15
影响因子:
2.7
通讯作者:
Crump JG
中科院分区:
文献类型:
--
作者:
Balczerski B;Matsutani M;Castillo P;Osborne N;Stainier DY;Crump JG
Development of the head skeleton involves reciprocal interactions between cranial neural crest cells (CNCCs) and the surrounding pharyngeal endoderm and ectoderm. Whereas elegant experiments in avians have shown a prominent role for the endoderm in facial skeleton development, the relative functions of the endoderm in growth versus regional identity of skeletal precursors have remained unclear. Here we describe novel craniofacial defects in zebrafish harboring mutations in the Sphingosine-1-phospate (S1P) type 2 receptor (s1pr2) or the S1P transporter Spinster 2 (spns2), and we show that S1P signaling functions in the endoderm for the proper growth and positioning of the jaw skeleton. Surprisingly, analysis of s1pr2 and spns2 mutants, as well as sox32 mutants that completely lack endoderm, reveals that the dorsal-ventral (DV) patterning of jaw skeletal precursors is largely unaffected even in the absence of endoderm. Instead, we observe reductions in the ectodermal expression of Fibroblast growth factor 8a (Fgf8a), and transgenic misexpression of Shha restores fgf8a expression and partially rescues the growth and differentiation of jaw skeletal precursors. Hence, we propose that the S1P-dependent anterior foregut endoderm functions primarily through Shh to regulate the growth but not DV patterning of zebrafish jaw precursors.
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影响因子:
9.8
作者:
Crump JG;Swartz ME;Kimmel CB
通讯作者:
Kimmel CB
DOI:
10.1073/pnas.0604751103
发表时间:
2006-08-01
影响因子:
11.1
作者:
Brito, Jose M.;Teillett, Marie-Aimee;Le Douarin, Nicole M.
通讯作者:
Le Douarin, Nicole M.
影响因子:
4.6
作者:
Haworth, KE;Healy, C;Sharpe, PT
通讯作者:
Sharpe, PT
DOI:
10.1016/j.cub.2008.10.061
发表时间:
2008-12-09
期刊:
Current biology : CB
影响因子:
--
作者:
Osborne N;Brand-Arzamendi K;Ober EA;Jin SW;Verkade H;Holtzman NG;Yelon D;Stainier DY
通讯作者:
Stainier DY
影响因子:
2.7
作者:
Liu, W;Selever, J;Martin, JF
通讯作者:
Martin, JF