Cre-dependent selection yields AAV variants for widespread gene transfer to the adult brain.

Cre-dependent selection yields AAV variants for widespread gene transfer to the adult brain.
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DOI:
10.1038/nbt.3440
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发表时间:
2016-02
影响因子:
46.9
通讯作者:
Gradinaru, Viviana
Gradinaru, Viviana
中科院分区:
工程技术1区
文献类型:
--
作者:
Deverman, Benjamin E.;Pravdo, Piers L.;Simpson, Bryan P.;Kumar, Sripriya Ravindra;Chan, Ken Y.;Banerjee, Abhik;Wu, Wei-Li;Yang, Bin;Huber, Nina;Pasca, Sergiu P.;Gradinaru, Viviana

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重组腺相关病毒(RAAVs)是体内基因转移的常用载体。然而,自然产生的AAV的趋向性谱系是有限的,这促使人们寻找具有所需特征的新型AAV衣壳。在这里,我们描述了一种衣壳选择方法,称为基于Cre重组的AAV靶向进化(CREATE),该方法能够在体内更有效地转导已定义的Cre表达细胞群的AAV衣壳。我们使用CREATE来产生AAV变体,在静脉注射后有效和广泛地转导成年小鼠的中枢神经系统(CNS)。一种名为AAV-PHP.B的变种在整个中枢神经系统转移基因,其效率至少是当前标准AAV9的40倍,并在多个中枢神经系统区域转导大多数星形胶质细胞和神经元。在体外,它比AAV9更有效地转导人类神经元和星形胶质细胞,展示了CREATE生产定制AAV载体用于生物医学应用的潜力。
Recombinant adeno-associated viruses (rAAVs) are commonly used vehicles for in vivo gene transfer. However, the tropism repertoire of naturally occurring AAVs is limited, prompting a search for novel AAV capsids with desired characteristics. Here we describe a capsid selection method, called Cre-recombination-based AAV targeted evolution (CREATE), that enables the development of AAV capsids that more efficiently transduce defined Cre-expressing cell populations in vivo. We use CREATE to generate AAV variants that efficiently and widely transduce the adult mouse central nervous system (CNS) after intravenous injection. One variant, AAV-PHP.B, transfers genes throughout the CNS with an efficiency that is at least 40-fold greater than that of the current standard, AAV9, and transduces the majority of astrocytes and neurons across multiple CNS regions. In vitro, it transduces human neurons and astrocytes more efficiently than does AAV9, demonstrating the potential of CREATE to produce customized AAV vectors for biomedical applications.
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