Remodeling vasculature to avoid blindness.

Remodeling vasculature to avoid blindness.
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重塑脉管系统以避免失明。

DOI:
10.1126/science.abd7063
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发表时间:
2020
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Byzova,TatianaV
Byzova,TatianaV
中科院分区:
--
文献类型:
--
作者:
Podrez,EugeneA;Byzova,TatianaV

文献摘要

参考文献

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血管重塑对于构建分层结构的血管网络至关重要,而血管网络反过来又支持适当的器官功能(1)。视网膜特别依赖于最佳的血液供应,血管不足或过多经常导致失明。血管退化的过程降低了血管密度,促进了血管系统的正常化和随后的组织修复(2)。退化是由必需血管生长因子的退出或触发内皮细胞凋亡和随后的血管修剪引起的(3)。然而,功能失调和过度的视网膜血管如何被选择和标记为修剪是未知的。在这期杂志的第934页,Binetet等人(4)揭示了小鼠和人类视网膜中的病理性脉管系统通过促进中性粒细胞胞外陷阱(NETs)的挤压来协调自身的重塑。这一机制可能适用于其他需要血管重塑的病理,如癌症、肺动脉高压和心脏病(3)。
Vascular remodeling is essential for building hierarchically structured vascular networks, which in turn support proper organ function (1). The retina is particularly dependent on optimal blood supply, and insufficient or excessive vasculature often leads to blindness. The process of vascular regression reduces blood vessel density, facilitating normalization of vasculature and subsequent tissue repair (2). Regression is either caused by the withdrawal of essential vascular growth factors or by triggering endothelial apoptosis and subsequent pruning of vasculature (3). However, it is unknown how dysfunctional and excessive retinal blood vessels are selected and marked for pruning. On page 934 of this issue, Binetet al.(4) reveal that pathological vasculature in the retina of mice and humans orchestrates its own remodeling by promoting the extrusion of neutrophil extracellular traps (NETs). This mechanism might be applied to other pathologies that require vascular remodeling, such as cancer, pulmonary hypertension, and heart disease (3).
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