Compositions and methods for retinal transduction and photoreceptor specific transgene expression
    2.
    发明申请
    Compositions and methods for retinal transduction and photoreceptor specific transgene expression 审中-公开
    视网膜转导和感光细胞特异性转基因表达的组合物和方法

    公开(公告)号:US20100184838A1

    公开(公告)日:2010-07-22

    申请号:US12595651

    申请日:2008-04-11

    摘要: Adenovirus (Ad) vectors are here provided for treatment of ocular tissues as are suitable methods to transduce photoreceptor (PR) cells, the tissue associated with degeneration. Expression from CMV or chicken beta actin (CBA) promoters in neural retina were compared, and CBA was found to be 173-fold more potent than CMV. Further, the RGD domain in Ad penton was found to play a key role in RPE tropism. Deletion of the RGD domain coupled with the CBA promoter permitted transgene expression in neural retina approximately 667-fold more efficiently than with prior Ad5 vectors. Use of Ad vectors in combination with a 4.7 kb rhodopsin promoter enabled transgene expression exclusively in photoreceptor cells in vivo.

    摘要翻译: 这里提供腺病毒(Ad)载体用于治疗眼组织,如转导感光器(PR)细胞,与变性相关的组织的合适方法。 比较CMV或鸡β肌动蛋白(CBA)启动子在神经视网膜中的表达,发现CBA比CMV更有效173倍。 此外,Ad penton的RGD域被发现在RPE向性中起关键作用。 与CBA启动子结合的RGD结构域的删除允许神经视网膜中的转基因表达比先前的Ad5载体高约667倍。 使用Ad载体与4.7 kb视紫红质启动子组合使得能够在体内在感光细胞中独家表达转基因表达。