摘要:
The present invention relates to RNA interference using small interfering RNAs (siRNAs) which are specific for the vascular endothelial growth factor (VEGF) gene and the VEGF receptor genes Flt1 and Flk-I/KDR and which inhibit expression of these genes. Diseases which involve angiogenesis stimulated by overexpression of VEGF, such as diabetic retinopathy, age related macular degeneration and many types of cancer, can be treated by administering the small interfering RNAs.
摘要:
PROBLEM TO BE SOLVED: To provide synthetic interfering RNA molecules which are both stable and active in a biochemical environment such as a living cell.SOLUTION: The present invention is related to a ribonucleic acid comprising a double stranded structure where the double-stranded structure comprises a first strand and a second strand, where the first strand comprises a first stretch of contiguous nucleotides and where the first stretch is at least partially complementary to a target nucleic acid, and the second strand comprises a second stretch of contiguous nucleotides where the second stretch is at least partially identical to the target nucleic acid, and where the double stranded structure is blunt ended.
摘要:
PROBLEM TO BE SOLVED: To provide a new nucleic acid molecule that can be produced by an easy and efficient production method and can inhibit expression of a gene.SOLUTION: There is provided a single-stranded nucleic acid molecule including an expression inhibitory sequence that inhibits expression of a target gene, wherein, the molecule includes a region (X), a linker region (Lx), and a region (Xc). The linker region (Lx) is linked between the regions (X) and (Xc), the region (Xc) is complementary to the region (X), at least one of the regions (X) and (Xc) includes the expression inhibitory sequence, and the linker region (Lx) has a non-nucleotide structure including at least one of a pyrrolidine skeleton and a piperidine skeleton. According to this single-stranded nucleic acid molecule, it is possible to inhibit the expression of the target gene.