| 查看: 419 | 回复: 2 | |||
[求助]
求大神帮忙翻译文献摘要
|
|
Cardiac malformations due to aberrant development of the atrioventricular (AV) valves are among the most common forms of congenital heart disease. At localized swellings of extracellular matrix known as the endocardial cushions, the endothelial lining of the heart undergoes an epithelial to mesenchymal transition (EMT) to form the mesenchymal progenitors of the AV valves. Further growth and differentiation of these mesenchymal precursors results in the formation of portions of the atrial and ventricular septae, and the generation of thin, pliable valves. Gata4, which encodes a zinc finger transcription factor, is expressed in the endothelium and mesenchyme of the AV valves. Using a Tie2-Cre transgene, we selectively inactivated Gata4 within endothelialderived cells. Mutant endothelium failed to undergo EMT, resulting in hypocellular cushions. Mutant cushions had decreased levels of Erbb3, an EGF-family receptor essential for EMT in the atrioventricular cushions. In Gata4 mutant embryos, Erbb3 downregulation was associated with impaired activation of Erk, which is also required for EMT. Expression of a Gata4 mutant protein defective in interaction with Friend of Gata (FOG) cofactors rescued the EMT defect, but resulted in a decreased proliferation of mesenchyme and hypoplastic cushions that failed to septate the ventricular inlet. We demonstrate two novel functions of Gata4 in development of the AV valves. First, Gata4 functions as an upstream regulator of an Erbb3-Erk pathway necessary for EMT, and second, Gata4 acts to promote cushion mesenchyme growth and remodeling. 求这段的翻译 复试用 拜托啦 |
回复此楼» 猜你喜欢
谈谈两天一夜的“延安行”
已经有15人回复
-
EST投稿状态问题
已经有6人回复
-
职称评审没过，求安慰
已经有15人回复
-
垃圾破二本职称评审标准
已经有11人回复
-
投稿Elsevier的Neoplasia杂志，到最后选publishing options时页面空白，不能完成投稿
已经有16人回复
-
毕业后当辅导员了，天天各种学生超烦
已经有4人回复
-
聘U V热熔胶研究人员
已经有10人回复
-
求助文献
已经有3人回复
-
投稿返修后收到这样的回复，还有希望吗
已经有8人回复
-
三无产品还有机会吗
已经有6人回复
houbingxiao
木虫 (小有名气)
- 翻译EPI: 1
- 应助: 2 (幼儿园)
- 金币: 1672.5
- 帖子: 99
- 在线: 31.4小时
- 虫号: 2326487
- 注册: 2013-03-07
- 性别: MM
- 专业: 蛋白质组学