Modulation of pre-MRNA using splice modulating oligonucleotides as therapeutic agents in the treatment of disease
The present invention encompasses a class of compounds known as splice modulating oligonucleotides (SMOs) that modulate pre-mRNA splicing, thereby affecting expression and functionality of a specific protein in a cell. The present invention further provides compositions and methods for modulating pre-mRNA splicing using a SMO of the invention to abrogate disease-causing mutations in a protein. Accordingly, the present invention provides compositions and methods of treating a subject at risk of, susceptible to, or having a disease, disorder, or condition associated with aberrant or unwanted target pre-mRNA expression or activity.
1. A composition comprising a splice modulating oligonucleotide (SMO) that specifically binds a complementary sequence of a pre-mRNA that undergoes exon 3 or exon 11 splicing to form a mRNA encoding HER3, wherein said SMO is selected from at least one of SEQ ID NOs: 729 through 813, or a sequence having at least 90% identity over the full sequence of any of SEQ ID NOs: 729 through 813,wherein at least one nucleotide in said SMO contains a non-naturally occurring modification.
2. The composition according to claim 1 , wherein the SMO binds the pre-mRNA that undergoes exon 3 splicing and is selected from SEQ ID NO: 729 to SEQ ID NO: 802.
3. The composition according to claim 1 , wherein the SMO binds the pre-mRNA that undergoes exon 11 splicing and is selected from SEQ ID NO: 803 to SEQ ID NO: 813.
4. The composition of claim 1 , wherein said modification comprises one or more modifications selected from phosphorothioate 2′-O-methyl nucleotides, 2′-O-methoxyethyl (2′-MOE) nucleotides, locked nucleic acids (LNAs), peptide nucleic acids (PNAs), phosphorodiamidate morpholinos (PMOs), and cholesterol conjugates.
5. The composition of claim 1 , wherein at least one nucleotide in the SMO is a phosphorothioate 2′-O-methyl modified nucleotide.
6. The composition according to claim 1 , further comprising a pharmaceutically acceptable carrier.
7. The composition according to claim 1 , wherein said SMO is a sequence having at least 95% identity over the full sequence of any of SEQ ID NO: 729 through SEQ ID NO: 813.
8. The composition according to claim 1 , wherein said SMO is conjugated or complexes to a peptide, liposome, a cationic lipid, a cation coupled to a ligand for a cell-surface receptor, or a colloidal polymeric particle.