Efficient transduction and optogenetic stimulation of retinal bipolar cells by a synthetic adeno-associated virus capsid and promoter.

Efficient transduction and optogenetic stimulation of retinal bipolar cells by a synthetic adeno-associated virus capsid and promoter.
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DOI:
10.15252/emmm.201404077
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发表时间:
2014-09
影响因子:
11.1
通讯作者:
Bennett J
Bennett J
中科院分区:
医学1区
文献类型:
--
作者:
Cronin T;Vandenberghe LH;Hantz P;Juttner J;Reimann A;Kacsó AE;Huckfeldt RM;Busskamp V;Kohler H;Lagali PS;Roska B;Bennett J

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In this report, we describe the development of a modified adeno-associated virus (AAV) capsid and promoter for transduction of retinal ON-bipolar cells. The bipolar cells, which are post-synaptic to the photoreceptors, are important retinal targets for both basic and preclinical research. In particular, a therapeutic strategy under investigation for advanced forms of blindness involves using optogenetic molecules to render ON-bipolar cells light-sensitive. Currently, delivery of adequate levels of gene expression is a limiting step for this approach. The synthetic AAV capsid and promoter described here achieves high level of optogenetic transgene expression in ON-bipolar cells. This evokes high-frequency (∼100 Hz) spiking responses in ganglion cells of previously blind, rd1, mice. Our vector is a promising vehicle for further development toward potential clinical use.
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