Methods and compositions for the specific inhibition of gene expression by double-stranded RNA
US8883996B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 8, 2012 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2320/51
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention is directed to compositions and methods for selectively reducing the expression of a gene product from a desired target gene in a cell, as well as for treating diseases caused by the expression of the gene. More particularly, the invention is directed to compositions that contain double stranded RNA (“dsRNA”), and methods for preparing them, that are capable of reducing the expression of target genes in eukaryotic cells. The dsRNA has a first oligonucleotide sequence that is between 25 and about 30 nucleotides in length and a second oligonucleotide sequence that anneals to the first sequence under biological conditions. In addition, a region of one of the sequences of the dsRNA having a sequence length of at least 19 nucleotides is sufficiently complementary to a nucleotide sequence of the RNA produced from the target gene to trigger the destruction of the target RNA by the RNAi machinery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.