Extension of Endocardium-Derived Vessels Generate Coronary Arteries in Neonates

Extension of Endocardium-Derived Vessels Generate Coronary Arteries in Neonates
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心内膜衍生血管的延伸在新生儿中生成冠状动脉

DOI:
10.1161/circresaha.121.320335
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发表时间:
2022-01
影响因子:
20.1
通讯作者:
Bin Zhou
Bin Zhou
中科院分区:
医学1区
文献类型:
--
作者:
Juan Tang;Huan Zhu;Xueying Tian;Haixiao Wang;Shaoyan Liu;Kuo Liu;Huan Zhao;Lingjuan He;Xiuzhen Huang;Zhao Feng;Zhangheng Ding;Ben Long;Yan Yan;Nicola Smart;Hui Gong;Qingming Luo;Bin Zhou

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.背景:揭示新冠状动脉的形成可能为建立治疗缺血性心脏病的新治疗方法提供关键信息。在发育中的心脏中有2种不同的冠状血管群,它们来自不同的起源。了解冠状动脉的形成可能会为心肌梗死后促进冠状动脉形成的新方法提供见解。. .方法:为了了解心肌内冠状动脉是如何产生的,以连接这2个冠状动脉血管群,我们结合了遗传谱系追踪,光片显微镜,荧光显微光学切片断层扫描和组织特异性基因敲除方法,以了解其细胞和分子机制。. .结果:我们表明,心肌内冠状动脉的一个子集的形式,由新生儿心脏心内膜衍生的血管隧道的血管生成的延伸。三维整体荧光成像显示,这些心内膜衍生的血管隧道或管道采用新生儿动脉的命运。从机制上讲,我们暗示Mettl3(甲基转移酶样蛋白3)和Notch信号在调节心内膜衍生的心肌内冠状动脉形成。在功能上,这些心肌内动脉持续到成年,并在心肌梗死后发挥保护作用。. .结论:心肌内冠状动脉的一个子集是通过新生儿心脏中心内膜衍生的血管隧道的延伸形成的。
. Background:. Unraveling how new coronary arteries develop may provide critical information for establishing novel therapeutic approaches to treating ischemic cardiac diseases. There are 2 distinct coronary vascular populations derived from different origins in the developing heart. Understanding the formation of coronary arteries may provide insights into new ways of promoting coronary artery formation after myocardial infarction.. . . Methods:. To understand how intramyocardial coronary arteries are generated to connect these 2 coronary vascular populations, we combined genetic lineage tracing, light sheet microscopy, fluorescence micro-optical sectioning tomography, and tissue-specific gene knockout approaches to understand their cellular and molecular mechanisms.. . . Results:. We show that a subset of intramyocardial coronary arteries form by angiogenic extension of endocardium-derived vascular tunnels in the neonatal heart. Three-dimensional whole-mount fluorescence imaging showed that these endocardium-derived vascular tunnels or tubes adopt an arterial fate in neonates. Mechanistically, we implicate Mettl3 (methyltransferase-like protein 3) and Notch signaling in regulating endocardium-derived intramyocardial coronary artery formation. Functionally, these intramyocardial arteries persist into adulthood and play a protective role after myocardial infarction.. . . Conclusions:. A subset of intramyocardial coronary arteries form by extension of endocardium-derived vascular tunnels in the neonatal heart..
DOI: 10.1161/circresaha.115.307202
发表时间: 2016-01
影响因子: 20.1
作者:
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发表时间: 2017-07-20
影响因子: 16.6
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发表时间: 2013
期刊: PloS one
影响因子: 3.7
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DOI: 10.1242/dev.113639
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影响因子: 4.6
作者:
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