Enhanced Rod Photoreceptor-Specific Gene Expression System

An optimized gene expression system for specific targeting of rod photoreceptors, offering improved efficiency, safety, and versatility.

The original SYNP161 promoter-based expression cassette, while effective, has limitations in terms of transcriptional activity and specificity. The new inventive concept addresses these limitations by introducing enhanced nucleic acid sequences and regulatory elements, ensuring more efficient and targeted gene expression in rod photoreceptors.

The enhanced system comprises a nucleic acid sequence of at least 150 base pairs with at least 97% identity to SEQ ID NO:1, specifically designed to drive gene expression in rod photoreceptors. The system may further include regulatory elements that enhance transcriptional activity, such as minimal promoters. The inventive concept also encompasses methods for optimizing gene expression, including identifying and incorporating optimal nucleic acid sequences, and kits for expressing genes in rod photoreceptors.

The new inventive concept introduces a higher identity threshold (97% vs. 95%) for the nucleic acid sequence, ensuring more specific and efficient gene expression. Additionally, the incorporation of regulatory elements and optimization methods represents a non-obvious improvement over the original patent.

Alternative embodiments may include the use of different regulatory elements, such as enhancers or silencers, to modulate gene expression. Variations may also include the development of expression cassettes targeting other photoreceptor cell types or using different vector systems.

The enhanced gene expression system has potential applications in gene therapy, optogenetics, and regenerative medicine, particularly in the treatment of retinal diseases. The target market includes biotech and pharmaceutical companies, as well as research institutions focused on vision science and gene therapy.