Compositions and methods for treating leber's hereditary optic neuropathy
Disclosed herein is a recombinant nucleic acid, comprising: a mitochondrial targeting sequence; a mitochondrial protein coding sequence, wherein said mitochondrial protein coding sequence encodes a polypeptide comprising a mitochondrial protein; and a 3′UTR nucleic acid sequence. Also disclosed is a pharmaceutical composition comprising the recombinant nucleic acid and a method of treating Leber's hereditary optic neuropathy (LHON) using the pharmaceutical composition.
1. A recombinant nucleic acid, comprising:
a mitochondrial targeting sequence;
a mitochondrial protein coding sequence comprising a sequence that is at least 90% identical to a sequence selected from the group consisting of SEQ ID NO: 7, 10, and 12; and
a 3′UTR nucleic acid sequence.
2. The recombinant nucleic acid of claim 1 , wherein said mitochondrial targeting sequence encodes a polypeptide comprising a peptide sequence that is at least 90% identical to a sequence selected from the group consisting of SEQ ID NO: 129-159.
3. The recombinant nucleic acid of claim 1 , wherein said mitochondrial targeting sequence comprises a sequence that is at least 90% identical to a sequence selected from the group consisting of SEQ ID NO: 2-5.
4. The recombinant nucleicacid of claim 1 , wherein said mitochondrial targeting sequence comprises a sequence that encodes a polypeptide selected from the group consisting of hsCOX10, hsCOX8, scRPM2, lcSirt5, tbNDUS7, ncQCR2, hsATP5G2, hsLACTB, spilv1, gmCOX2, crATP6, hsOPA1, hsSDHD, hsADCK3, osP0644B06.24-2, Neurospora crassa ATP9 (ncATP9), hsGHITM, hsNDUFAB1, hsATPSG3, crATP6_hsADCK3, ncATP9_ncATP9, zmLOC100282174, ncATP9_zmLOC100282174_spilv1_ncATP9, zmLOC100282174_hsADCK3_crATP6_hsATP5G3, zmLOC100282174_hsADCK3_hsATP5G3, ncATP9_zmLOC100282174, hsADCK3_zmLOC 100282174_crATP6_hsATP5G3, crATP6_hsADCK3_zmLOC100282174_hsATP5G3, hsADCK3_zmLOC100282174, hsADCK3_zmLOC100282174_crATP6, ncATP9_zmLOC100282174_spilv1_GNFP_ncATP9, and ncATP9_zmLOC100282174_spilv1_lcSirt5_osP0644B06.24-2_hsATP5G2_ncATP9.
5. The recombinant nucleic acid of claim 1 , wherein said mitochondrial protein is selected from a group consisting of NADH dehydrogenase 4 (ND4), NADH dehydrogenase 6 (ND6), NADH dehydrogenase 1 (ND1), and a variant thereof.
6. The recombinant nucleic acid of claim 5 , wherein said mitochondrial protein comprises NADH dehydrogenase 4 (ND4), or a variant thereof.
7. The recombinant nucleic acid of claim 6 , wherein said mitochondrial protein coding sequence comprises a sequence that is at least 99% identical to a sequence as set forth in SEQ ID NO: 7.
8. The recombinant nucleic acid of claim 5 , wherein said mitochondrial protein comprises NADH dehydrogenase 6 (ND6), or a variant thereof.
9. The recombinant nucleic acid of claim 8 , wherein said mitochondrial protein coding sequence comprises a sequence that is at least 90% identical to a sequence as set forth in SEQ ID NO: 10.
10. The recombinant nucleic acid of claim 5 , wherein said mitochondrial protein comprises NADH dehydrogenase 1 (ND1), or a variant thereof.
11. The recombinant nucleic acid of claim 10 , wherein said mitochondrial protein coding sequence comprises a sequence that is at least 90% identical to a sequence as set forth in SEQ ID NO: 12.
12. The recombinant nucleic acid of claim 1 , wherein said 3′UTR nucleic acid sequence comprises a sequence selected from the group consisting of hsACO2, hsATP5B, hsAK2, hsALDH2, hsCOX10, hsUQCRFS1, hsNDUFV1, hsNDUFV2, hsSOD2, hsCOX6c, hsIRP1, hsMRPS12, hsATP5J2, rnSOD2, and hsOXA1L.
13. The recombinant nucleic acid of claim 1 , wherein said 3′UTR nucleic acid sequence comprises a sequence selected from the group consisting of hsACO2, hsATP5B, hsAK2, hsALDH2, hsCOX10, hsUQCRFS1, hsNDUFV1, hsNDUFV2, hsSOD2, hsCOX6c, hsIRP1, hsMRPS12, hsATP5J2, rnSOD2, and hsOXA1L.
14. The recombinant nucleic acid of claim 1 , wherein said 3′UTR nucleic acid sequence comprises a sequence that is at least 90% identical to a sequence selected from the group consisting of SEQ ID NO: 111-125.
15. An adeno-associated viral (AAV) vector comprising a recombinant nucleic acid, comprising: a mitochondrial targeting sequence; a mitochondrial protein coding sequence comprising a sequence that is at least 90% identical to a sequence selected from the group consisting of SEQ ID NO: 7, 10, and 12; and a 3′UTR nucleic acid sequence.
16. The AAV vector of claim 15 , wherein said AAV vector is a recombinant AAV (rAAV) vector.
17. The AAV vector of claim 16 , wherein said rAAV vector is rAAV2 vector.
18. A pharmaceutical composition, comprising an adeno-associated virus (AAV) comprising a recombinant nucleic acid and a pharmaceutically acceptable excipient thereof, wherein said recombinant nucleic acid comprises: a mitochondrial targeting sequence; a mitochondrial protein coding sequence comprising a sequence that is at least 90% identical to a sequence selected from the group consisting of SEQ ID NO: 7, 10, and 12; and a 3′UTR nucleic acid sequence.
19. The pharmaceutical composition of claim 18 , wherein said pharmaceutically acceptable excipient comprises phosphate-buffered saline (PBS), α,α-trehalose dehydrate, L-histidine monohydrochloride monohydrate, polysorbate 20, NaCl, NaH 2 PO 4 , Na 2 HPO 4 , KH 2 PO 4 , K 2 HPO 4 , poloxamer 188, or any combination thereof.
20. The pharmaceutical composition of claim 19 , wherein said pharmaceutically acceptable excipient comprises poloxamer 188.
21. The pharmaceutical composition of claim 20 , wherein said pharmaceutically acceptable excipient comprises 0.0001%-0.01% poloxamer 188.
22. The pharmaceutical composition of claim 18 , wherein said pharmaceutical composition has a viral titer of at least 5.0×10 10 vg/mL.
23. The pharmaceutical composition of claim 18 , when said pharmaceutical composition is subject to five freeze/thaw cycles, said pharmaceutical composition retains at least 60%, 70%, 80%, or 90% of a viral titer as compared to the viral titer prior to the five freeze/thaw cycles.