Methods, compositions and apparatus for delivering heterologous molecules to cells
View Patent ↗A method for transferring a macromolecular complex to muscle cells by exsanguinating a region of the subject's microvasculature and delivering the complex to this region under high hydrostatic pressure. A balloon catheter having a balloon that extends substantially the full length of the cannula that is inserted into the subject is provided for use in the systemic delivery of macromolecular complex.
1. A method for transferring a macromolecular complex to muscle cells, said method comprising the steps of:
(a) isolating a region of the subject's microvasculature; and
(b) delivering a macromolecular complex to the venous side of the isolated region of the subject's microvasculature under about 50 mm Hg to about 500 mm Hg hydrostatic pressure, wherein said hydrostatic pressure transfers said macromolecular complex to the muscle cells, wherein said macromolecular complex comprises a viral vector carrying a target molecule, wherein said viral vector is a recombinant adenoviral (rAd) vector or a recombinant adeno-associated viral (rAAV) vector,
wherein said macromolecular complex is delivered substantially in the absence of vascular permeability-enhancing agents.
2. The method according to claim 1 , wherein said recombinant adeno-associated viral (rAAV) vector comprises an AAV1 capsid.
3. The method according to claim 1 , wherein said recombinant adeno-associated viral (rAAV) vector comprises an AAV2 capsid.
4. The method according to claim 1 , wherein said recombinant adeno-associated viral (rAAV) vector comprises AAV2 inverted terminal repeat sequences.
5. The method according to claim 1 , wherein said recombinant adeno-associated viral (rAAV) vector comprises a serotype 1 capsid and serotype 2 inverted terminal repeat sequences.
6. The method according to claim 1 , wherein said target molecule is a transgene, a chemical moiety, or a DNA molecule which directs the transcription of an mRNA molecule or a RNA silencing molecule.
7. The method according to claim 6 , wherein said target molecule is a transgene.
8. The method according to claim 7 , wherein said transgene encodes a sarcoglycan protein, dystrophin, utrophin, a minidystrophin protein, a microdystrophin protein, calpain, Fukutin, Fukutin-related protein, telethonin, laminin, beta adrenergic receptor kinase 1 (bARK1), beta andrenoreceptor kinase c-terminase (βARKct), carnitine palmityl transferase (CPT) 1, CTP2, dysferlin, thymidine phosphorylase; SMN2 (SMNC), insulin-like growth factor, sarcoplasmic reticulum Ca 2+ ATPase (SERCA), or phoshpholambin.
9. The method according to claim 7 , wherein said transgene encodes Factor VIII or Factor IX.
10. The method according to claim 7 , wherein said transgene encodes a myostatin inhibitor, insulin, glucagon, growth hormone (GH), parathyroid hormone (PTH), growth hormone releasing factor (GRF), follicle stimulating hormone (FSH), luteinizing hormone (LH), human chorionic gonadotropin (hCG), vascular endothelial growth factor (VEGF), platelet derived growth factor (PDGF), angiopoietins, angiostatin, granulocyte colony stimulating factor (GCSF), erythropoietin (EPO), connective tissue growth factor (CTGF), basic fibroblast growth factor (bFGF), acidic fibroblast growth factor (aFGF), epidermal growth factor (EGF), platelet-derived growth factor (PDGF), insulin growth factors I and II (IGF-I and IGF-II), TGFα, an activin, an inhibin, a bone morphogenic protein (BMP), a heregluin/neuregulin/ARIA/neu differentiation factor (NDF) growth factor, nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin NT-3, neurotrophin NT-4/5, ciliary neurotrophic factor (CNTF), glial cell line derived neurotrophic factor (GDNF), neurturin, agrin, a semaphorin a collapsin, netrin-1, netrin-2, hepatocyte growth factor (HGF), an ephrin, noggin, sonic hedgehog or tyrosine hydroxylase.
11. The method according to claim 1 , comprising at least partially exsanguinating the region.
12. The method according to claim 1 , wherein the peripheral circulation is isolated from the central circulation.
13. The method according to claim 12 , wherein the macromolecular complex is delivered to the peripheral circulation.
14. The method according to claim 1 , wherein the macromolecular complex solution is permitted to dwell for about 30 seconds to about 30 minutes.
15. The method according to claim 14 , wherein macromolecular complex solution is permitted to dwell for about 90 seconds.
16. The method according to claim 1 , where said macromolecular complex is perfused at about 100 mm Hg to about 400 mm Hg.
17. The method according to claim 16 , where said macromolecular complex is perfused at about 100 mm Hg.
18. The method according to claim 11 , wherein the at least partially exsanguinated region is flushed following delivery of the macromolecular complex.