Regulation of canonical Wnt signaling by Brachyury is essential for posterior mesoderm formation.
Regulation of canonical Wnt signaling by Brachyury is essential for posterior mesoderm formation.
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DOI:
10.1016/j.devcel.2008.04.013
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发表时间:
2008-07
影响因子:
11.8
通讯作者:
Kimelman, David
中科院分区:
文献类型:
--
作者:
Martin, Benjamin L.;Kimelman, David
The T-box transcription factor Brachyury is essential for the formation of the posterior body in all vertebrates, although its critical transcriptional targets have remained elusive. Loss of function studies of mouse Brachyury and the zebrafish Brachyury ortholog Ntl indicated that Brachury plays a more significant role in higher vertebrates than lower vertebrates. We have identified a second zebrafish Brachyury ortholog (Bra), and show that a combined loss of Ntl and Bra recapitulates the mouse phenotype, demonstrating an ancient role for Brachyury in patterning all but the most anterior somites. Using cell transplantation we show that the only essential role for Brachury during somite formation is non cell-autonomous, and demonstrate that Ntl and Bra are required for and can induce expression of the canonical Wnts wnt8 and wnt3a. We propose that a positive autoregulatory loop between Ntl/Bra and canonical Wnt signaling maintains the mesodermal progenitors to facilitate posterior somite development in chordates.
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影响因子:
64.8
作者:
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通讯作者:
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DOI:
10.1073/pnas.151258098
发表时间:
2001-07-17
影响因子:
11.1
作者:
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通讯作者:
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作者:
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通讯作者:
Papaioannou, VE
影响因子:
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作者:
Chesley, P
通讯作者:
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影响因子:
10.5
作者:
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通讯作者:
MOON, RT