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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Directing gene expression to cerebellar granule cells using γ -aminobutyric acid type A receptor α6 subunit transgenes
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Directing gene expression to cerebellar granule cells using γ -aminobutyric acid type A receptor α6 subunit transgenes

机译:使用γ-氨基丁酸A型受体α6亚基转基因指导小脑颗粒细胞基因表达

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摘要

Expression of the γ-aminobutyric acid type A receptor α6 subunit gene is restricted to differentiated granule cells of the cerebellum and cochlear nucleus. The mechanisms underlying this limited expression are unknown. Here we have characterized the expression of a series of α6-based trans- genes in adult mouse brain. A DNA fragment containing a 1-kb portion upstream of the start site(s), together with exons 1-8, can direct high-level cerebellar granule cell-specific reporter gene expression. Thus powerful granule cell-specific determi- nants reside within the 5' half of the α6 subunit gene body. This intron-containing transgene appears to lack the cochlear nucleus regulatory elements. It therefore provides a cassette to deliver gene products solely to adult cerebellar granule cells.
机译:γ-氨基丁酸A型受体α6亚基基因的表达仅限于小脑和耳蜗核的分化颗粒细胞。限制表达的机制尚不清楚。在这里,我们已经表征了成年小鼠大脑中一系列基于α6的转基因的表达。包含起始位点上游1kb部分以及外显子1-8的DNA片段可以指导高水平小脑颗粒细胞特异性报告基因的表达。因此,强大的颗粒细胞特异性决定簇位于α6亚基基因体的5'一半内。这种含内含子的转基因似乎缺乏耳蜗核调节元件。因此,它提供了仅将基因产物递送至成年小脑颗粒细胞的盒。

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