Antisense nucleic acids

• US 10,407,461 B2
• Filed: 03/26/2019
• Issued: 09/10/2019
• Est. Priority Date: 09/01/2010
• Status: Active Grant

• Current Assignee: National Center of Neurology and Psychiatry, Nippon Shinyaku Company Limited
• Original Assignee: Nippon Shinyaku Company Limited
• Inventors: Watanabe, Naoki, Satou, Youhei, Takeda, Shin'ichi, Nagata, Tetsuya
• Primary Examiner(s): McGarry, Sean
• Application Number:
  US16/364,451
• Publication Number:
  US 20190211050A1
• Time in Patent Office: 168 Days
• Field of Search: None
• CPC Class Codes: A61P 21/00 Drugs for disorders of the muscular or neuromuscular system
• CPC Class Codes: A61P 21/04 for myasthenia gravis
• CPC Class Codes: C07H 21/00 Compounds containing two or more mononucleotide units having separate phosphate or polyphosphate groups linked by saccharide radicals of nucleoside groups, e.g. nucleic acids
• CPC Class Codes: C07H 21/04 with deoxyribosyl as saccharide radical
• CPC Class Codes: C07K 14/4708 Duchenne dystrophy
• CPC Class Codes: C12N 15/111 General methods applicable to biologically active non-coding nucleic acids
• CPC Class Codes: C12N 15/113 Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing when used in plants C12N15/8218
• CPC Class Codes: C12N 2310/11 Antisense
• CPC Class Codes: C12N 2310/3145 with the nitrogen in 3' or 5'-position
• CPC Class Codes: C12N 2310/315 Phosphorothioates
• CPC Class Codes: C12N 2310/321 2'-O-R Modification
• CPC Class Codes: C12N 2310/3525 MOE, methoxyethoxy
• CPC Class Codes: C12N 2320/33 Alteration of splicing

Abstract

The present invention provides an oligomer which efficiently enables to cause skipping of the 53rd exon in the human dystrophin gene. Also provided is a pharmaceutical composition which causes skipping of the 53rd exon in the human dystrophin gene with a high efficiency.

Claims

1. A phosphorodiamidate morpholino oligomer (PMO) antisense oligomer that causes skipping of the 53^rd exon in a human dystrophin pre-mRNA, consisting of a 25-mer oligomer that is 100% complementary to the target sequence 5′

-GAACACCUUCAGAACCGGAGGCAAC-3′

(SEQ ID NO;

     124) of said human dystrophin pre-mRNA, wherein said PMO antisense oligomer hybridizes to said target sequence with Watson-Crick base pairing under physiological conditions, wherein each phosphorodiamidate morpholino monomer of said PMO antisense oligomer has the formula;

2. A phosphorodiamidate morpholino oligomer (PMO) antisense oligomer that causes skipping of the 53^rd exon in a human dystrophin pre-mRNA, consisting of a 25-mer oligomer that is 100% complementary to the target sequence 5′

-GAACACCUUCAGAACCGGAGGCAAC-3′

(SEQ ID NO;

     124) of said human dystrophin pre-mRNA, wherein said PMO antisense oligomer hybridizes to said target sequence with Watson-Crick base pairing under physiological conditions, wherein each phosphorodiamidate morpholino monomer of said PMO antisense oligomer has the formula;