Chiral nucleic acid adjuvant
US9617547B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Jul 12, 2013 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Jul 12, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2310/315
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
ProblemThe purpose of the present invention is to provide: a stereo isomer of a novel CpG oligonucleotide, which has excellent stability; and a CpG oligonucleotide which has a capability of producing interferon-α (IFNα).SolutionThe present invention relates to an oligonucleotide which contains two to four sequences each represented by the formula 5′-X1X2CpGX3X4-3′ (formula (I)) and has a length of 14 to 32 nucleotides. In formula (I), CpG represents a non-methylated CpG residue having a phosphate skeleton modification, X1X2 represents any one of AA, AT, GA and GT, and X3X4 represents any one of TT, AT, AC and CG. The oligonucleotide has at least one phosphate skeleton modification at an S-form stereoisomer located at a site other than the CpG.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.