Endocardial to myocardial notch-wnt-bmp axis regulates early heart valve development.
Endocardial to myocardial notch-wnt-bmp axis regulates early heart valve development.
复制标题
心内膜到心肌Notch-Wnt-Bmp 轴调节早期心脏瓣膜发育。
DOI:
10.1371/journal.pone.0060244
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Zhou B
中科院分区:
文献类型:
--
作者:
Wang Y;Wu B;Chamberlain AA;Lui W;Koirala P;Susztak K;Klein D;Taylor V;Zhou B
Endocardial to mesenchymal transformation (EMT) is a fundamental cellular process required for heart valve formation. Notch, Wnt and Bmp pathways are known to regulate this process. To further address how these pathways coordinate in the process, we specifically disrupted Notch1 or Jagged1 in the endocardium of mouse embryonic hearts and showed that Jagged1-Notch1 signaling in the endocardium is essential for EMT and early valvular cushion formation. qPCR and RNA in situ hybridization assays reveal that endocardial Jagged1-Notch1 signaling regulates Wnt4 expression in the atrioventricular canal (AVC) endocardium and Bmp2 in the AVC myocardium. Whole embryo cultures treated with Wnt4 or Wnt inhibitory factor 1 (Wif1) show that Bmp2 expression in the AVC myocardium is dependent on Wnt activity; Wnt4 also reinstates Bmp2 expression in the AVC myocardium of endocardial Notch1 null embryos. Furthermore, while both Wnt4 and Bmp2 rescue the defective EMT resulting from Notch inhibition, Wnt4 requires Bmp for its action. These results demonstrate that Jagged1-Notch1 signaling in endocardial cells induces the expression of Wnt4, which subsequently acts as a paracrine factor to upregulate Bmp2 expression in the adjacent AVC myocardium to signal EMT.
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DOI:
10.1073/pnas.0709663105
发表时间:
2008-02-12
影响因子:
11.1
作者:
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通讯作者:
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影响因子:
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DOI:
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发表时间:
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影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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