Genome editing abrogates angiogenesis in vivo.

Genome editing abrogates angiogenesis in vivo.
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DOI:
10.1038/s41467-017-00140-3
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发表时间:
2017-07-24
影响因子:
16.6
通讯作者:
Lei H
Lei H
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Huang X;Zhou G;Wu W;Duan Y;Ma G;Song J;Xiao R;Vandenberghe L;Zhang F;D'Amore PA;Lei H

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血管生成与多种人类疾病相关,包括增殖性糖尿病视网膜病变和湿性年龄相关性黄斑变性,其中血管内皮生长因子受体(VEGFR) 2在血管生成中起重要作用。在这里,我们报道了一种来自化脓性链球菌(SpCas9)的腺相关病毒(AAV)介导的聚集规律间隔短回文重复(CRISPR)相关核酸内切酶(Cas)9系统被用来消耗血管内皮细胞(ECs)中的VEGFR2,其中SpCas9的表达是由细胞间粘附分子2的内皮特异性启动子驱动的。我们进一步表明,重组AAV血清型1 (rAAV1)可转导病变血管的内皮细胞,并且使用rAAV1介导的CRISPR/Cas9编辑基因组VEGFR2位点可消除氧诱导视网膜病变和激光诱导脉络膜新生血管的小鼠模型中的血管生成。这项工作为基因组编辑作为治疗血管生成相关疾病的策略奠定了坚实的基础。血管生成异常引起许多眼部疾病。本研究中,作者利用CRISPR/Cas9基因编辑技术,在氧诱导视网膜病变和激光诱导脉络膜新生血管的小鼠模型中,沉默视网膜内皮中血管生成的主要调节因子VEGFR2,并阻断血管生成。
Angiogenesis, in which vascular endothelial growth factor receptor (VEGFR) 2 plays an essential role, is associated with a variety of human diseases including proliferative diabetic retinopathy and wet age-related macular degeneration. Here we report that a system of adeno-associated virus (AAV)-mediated clustered regularly interspaced short palindromic repeats (CRISPR)-associated endonuclease (Cas)9 from Streptococcus pyogenes (SpCas9) is used to deplete VEGFR2 in vascular endothelial cells (ECs), whereby the expression of SpCas9 is driven by an endothelial-specific promoter of intercellular adhesion molecule 2. We further show that recombinant AAV serotype 1 (rAAV1) transduces ECs of pathologic vessels, and that editing of genomic VEGFR2 locus using rAAV1-mediated CRISPR/Cas9 abrogates angiogenesis in the mouse models of oxygen-induced retinopathy and laser-induced choroid neovascularization. This work establishes a strong foundation for genome editing as a strategy to treat angiogenesis-associated diseases. Abnormal angiogenesis causes many ocular diseases. Here the authors employ CRISPR/Cas9 gene editing technology to silence VEGFR2, a major regulator of angiogenesis, in retinal endothelium and abrogate angiogenesis in the mouse models of oxygen-induced retinopathy and laser-induced choroid neovascularization.
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发表时间: 2017-02-01
影响因子: 4.4
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