Ectodermal Wnt/β-catenin signaling shapes the mouse face.
Ectodermal Wnt/β-catenin signaling shapes the mouse face.
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DOI:
10.1016/j.ydbio.2010.11.012
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发表时间:
2011-01-15
影响因子:
2.7
通讯作者:
Williams T
中科院分区:
文献类型:
--
作者:
Reid BS;Yang H;Melvin VS;Taketo MM;Williams T
The canonical Wnt/β-catenin pathway is an essential component of multiple developmental processes. To investigate the role of this pathway in the ectoderm during facial morphogenesis, we generated conditional β-catenin mouse mutants using a novel ectoderm-specific Cre recombinase transgenic line. Our results demonstrate that ablating or stabilizing β-catenin in the embryonic ectoderm causes dramatic changes in facial morphology. There are accompanying alterations in the expression of Fgf8 and Shh, key molecules that establish a signaling center critical for facial patterning, the frontonasal ectodermal zone (FEZ). These data indicate that Wnt/β-catenin signaling within the ectoderm is critical for facial development and further suggest that this pathway is an important mechanism for generating the diverse facial shapes of vertebrates during evolution.
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