Channelrhodopsins provide a breakthrough insight into strategies for curing blindness

Journal of genetics

Makoto Tamai¹  Hitomi Isago¹  Eriko Sugano²  Hiroshi Tomita1² 

[1]Tohoku University Graduate School of Medicine, 4-1 Seiryo Aoba Sendai Miyagi 980–8575, Japan$$

[2]Tohoku University Institute for International Advanced Interdisciplinary Research, 4-1 Seiryo Aoba Sendai Miyagi 980–8575, Japan$$

关键词: channelrhodopsin-2;    retinitis pigmentosa;    adeno-associated virus vector;    blindness.;   

DOI  :  

学科分类：生物科学（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Photoreceptor cells are the only retinal neurons that can absorb photons. Their degeneration due to some diseases or injuries leads to blindness. Retinal prostheses electrically stimulating surviving retinal cells and evoking a pseudo light sensation have been investigated over the past decade for restoring vision. Currently, a gene therapy approach is under development. Channelrhodopsin-2 derived from the green alga Chlamydomonas reinhardtii, is a microbial-type rhodopsin. Its specific characteristic is that it functions as a light-driven cation-selective channel. It has been reported that the channelrhodopsin-2 transforms inner light-insensitive retinal neurons to light-sensitive neurons. Herein, we introduce new strategies for restoring vision by using channelrhodopsins and discuss the properties of adeno-associated virus vectors widely used in gene therapy.

【 授权许可】

Unknown