Antisense molecules and methods for treating pathologies

• US 10,287,586 B2
• Filed: 07/27/2017
• Issued: 05/14/2019
• Est. Priority Date: 11/12/2009
• Status: Active Grant

• Current Assignee: University of Western Australia
• Original Assignee: University of Western Australia
• Inventors: Wilson, Stephen Donald, Fletcher, Sue, Adams, Abbie, Meloni, Penny
• Primary Examiner(s): Vivlemore, Tracy
• Application Number:
  US15/661,750
• Publication Number:
  US 20180171333A1
• Time in Patent Office: 656 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: 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 2310/315 Phosphorothioates
• CPC Class Codes: C12N 2310/3181 Peptide nucleic acid, PNA
• CPC Class Codes: C12N 2310/321 2'-O-R Modification
• CPC Class Codes: C12N 2310/3233 Morpholino-type ring
• CPC Class Codes: C12N 2310/351 Conjugate
• CPC Class Codes: C12N 2310/3521 Methyl
• CPC Class Codes: C12N 2320/33 Alteration of splicing

Abstract

An antisense molecule capable of binding to a selected target site to induce exon skipping in the dystrophin gene, as set forth in SEQ ID NO: 1 to 59.

Claims

1. An antisense oligonucleotide of 22 bases in length, wherein the antisense oligonucleotide is 100% complementary to a target region of exon 45 of the human dystrophin pre-mRNA, wherein the target region is annealing site H45A(−

03+19), wherein the antisense oligonucleotide is a morpholino antisense oligonucleotide, and wherein the antisense oligonucleotide specifically hybridizes to the annealing site inducing exon 45 skipping, or a pharmaceutically acceptable salt thereof.

2. The antisense oligonucleotide of claim 1, wherein the antisense oligonucleotide or pharmaceutically acceptable salt thereof is chemically linked to one or more moieties or conjugates that enhance the activity, cellular distribution or cellular uptake of the oligonucleotide.

3. The antisense oligonucleotide of claim 1, wherein the antisense oligonucleotide or pharmaceutically acceptable salt thereof is chemically linked to a polyethylene glycol chain.

4. An antisense oligonucleotide of 22 bases in length, wherein the antisense oligonueotide is 100% complementary to a target region of exon 45 of the human dystrophin pre-mRNA, wherein the target region is annealing site H45A(−

03+19), wherein the antisense oligonucleotide is a morpholino antisense oligonucleotide, and wherein the antisense oligonucleotide specifically hybridizes to the annealing site inducing exon 45 skipping.

5. The antisense oligonucleotide of claim 4, wherein the antisense oligonucleotide is chemically linked to one or more moieties or conjugates that enhance the activity, cellular distribution or cellular uptake of the oligonucleotide.

6. The antisense oligonucleotide of claim 4, wherein the antisense oligonucleotide is chemically linked to a polyethylene glycol chain.

7. A pharmaceutical composition comprising (i) an antisense oligonucleotide of 22 bases in length, wherein the antisense oligonucleotide is 100% complementary to a target region of exon 45 of the human dystrophin pre-mRNA, wherein the target region is annealing site H45A(−

03+19), wherein the antisense oligonucleotide is a morpholino antisense oligonucleotide, and wherein the antisense oligonucleotide specifically hybridizes to the annealing site inducing exon 45 skipping, or a pharmaceutically acceptable salt thereof, and (ii) a pharmaceutically acceptable carrier.

8. The pharmaceutical composition of claim 7, wherein the antisense oligonucleotide or pharmaceutically acceptable, salt thereof is chemically linked to one or more moieties or conjugates that enhance the activity, cellular distribution or cellular uptake of the oligonucleotide.

9. The pharmaceutical composition of claim 7, wherein the antisense oligonucleotide or pharmaceutically acceptable salt thereof is chemically linked to a polyethylene glycol chain.

10. A pharmaceutical composition comprising (i) an antisense oligonucleotide of 22bases in length, wherein the antisense oligonucleotide is 100% complementary to a target region of exon 45 of the human dystrophin pre-mRNA, wherein the target region is annealing site H45A(−

03+19), wherein the antisense oligonucleotide is a morpholino antisense oligonucleotide, and wherein the antisense oligonucleotide specifically hybridizes to the annealing site inducing exon 45 skipping, and (ii) a pharmaceutically acceptable carrier.

11. The pharmaceutical composition of claim 10, wherein the antisense oligonucleotide is chemically linked to one or more moieties or conjugates that enhance the activity, cellular distribution or cellular uptake of the oligonucleotide.

12. The pharmaceutical composition of claim 10, wherein the antisense oligonucleotide is chemically linked to a polyethylene glycol chain.