Methods for promoting wound healing and muscle regeneration with the cell signaling protein Nell1
The present invention provides methods for promoting wound healing and treating muscle atrophy in a mammal in need. The method comprises administering to the mammal a Nell1 protein or a Nell1 nucleic acid molecule.
1. A method for promoting healing of a skeletal muscle wound in a mammal, the method comprising:
(a) locally administering to the skeletal muscle wound an effective amount of an autologous or allogeneic cell comprising an expression vector encoding a Nell1 protein,
wherein the cell of step (a) expresses the Nell1 protein and is selected from the group consisting of an endothelial cell, epithelial cell, fibroblast, myoblast, satellite cell, skeletal muscle cell, and adult stem cell, and wherein said Nell1 protein has an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1, 3, or 5 and stimulates differentiation of precursor cells to maturity, thereby promoting healing of the skeletal muscle wound.
2. The method according to claim 1 , wherein the Nell1 protein comprises SEQ ID NO: 1.
3. The method according to claim 1 , wherein the Nell1 protein comprises SEQ ID NO: 3.
4. The method according to claim 1 , wherein the Nell1 protein comprises SEQ ID NO: 5.
5. The method according to claim 1 , wherein the Nell1 protein is a human Nell1 protein.
6. The method according to claim 1 , wherein the mammal is a human.
7. The method according to claim 1 , wherein local administration is by injection.
8. The method according to claim 1 , wherein local administration is topical.
9. The method according to claim 1 , wherein the mammal suffers from a disease or condition associated with impaired neovascularization or impaired angiogenesis.
10. The method according to claim 9 , wherein the mammal has diabetes, a vascular disease, or is aging.
11. The method according to claim 1 , wherein the skeletal muscle wound is caused by a mechanical, chemical, bacterial, or thermal means.
12. The method according to claim 11 , wherein the skeletal muscle wound is caused by thermal means.
13. The method according to claim 1 , wherein the cell is incorporated into a matrix.
14. A method for promoting healing of a skin wound in a mammal, the method comprising:
(a) locally administering to the skin wound an effective amount of an autologous or allogeneic cell comprising an expression vector encoding a Nell1 protein,
wherein the cell of step (a) expresses the Nell1 protein and is selected from the group consisting of an endothelial cell, epithelial cell, fibroblast, myoblast, satellite cell, skeletal muscle cell, and adult stem cell, and wherein said Nell1 protein has an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1, 3, or 5 and stimulates differentiation of precursor cells to maturity, thereby promoting healing of the skin wound.
15. The method according to claim 14 , wherein the skin wound is caused by mechanical, chemical, bacterial, or thermal means.
16. The method according to claim 15 , wherein the skin wound is caused by thermal means.
17. The method according to claim 14 , wherein the Nell1 protein comprises SEQ ID NO: 1.
18. The method according to claim 14 , wherein the Nell1 protein comprises SEQ ID NO: 3.
19. The method according to claim 14 , wherein the Nell1 protein comprises SEQ ID NO: 5.
20. The method according to claim 14 , wherein the Nell1 protein is a human Nell1 protein.
21. The method according to claim 14 , wherein the mammal is a human.
22. The method according to claim 14 , wherein said skin wound is an open wound.
23. The method according to claim 22 , wherein said open wound is selected from the group consisting of an incision, a laceration, an abrasion, a puncture wound, a penetration wound, and a gunshot wound.
24. The method according to claim 14 , wherein local administration is by injection.
25. The method according to claim 14 , wherein local administration is topical.
26. The method according to claim 14 , wherein the mammal suffers from a disease or condition associated with impaired neovascularization or impaired angiogenesis.
27. The method according to claim 26 , wherein the mammal has diabetes, a vascular disease, or is aging.
28. The method according to claim 14 , wherein promoting healing of the open wound comprises closure of the wound.
29. The method according to claim 14 , wherein the cell is incorporated into a matrix.
30. A method for treating skeletal muscle atrophy in a mammal, the method comprising:
(a) locally administering to a site of skeletal muscle atrophy an effective amount of an autologous or allogeneic cell comprising an expression vector encoding a Nell1 protein,
wherein the cell of step (a) expresses the Nell1 protein and is selected from the group consisting of an endothelial cell, epithelial cell, fibroblast, myoblast, satellite cell, skeletal muscle cell, and adult stem cell, and wherein said Nell1 protein has an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1, 3, or 5 and stimulates differentiation of precursor cells to maturity, thereby treating skeletal muscle atrophy.
31. The method according to claim 30 , wherein the Nell1 protein comprises SEQ ID NO: 1.
32. The method according to claim 30 , wherein the Nell1 protein comprises SEQ ID NO: 3.
33. The method according to claim 30 , wherein the Nell1 protein comprises SEQ ID NO: 5.
34. The method according to claim 30 , wherein the Nell1 protein is a human Nell1 protein.
35. The method according to claim 30 , wherein the mammal is a human.
36. The method according to claim 30 , wherein local administration is by injection.
37. The method according to claim 30 , wherein local administration is topical.
38. The method according to claim 30 , wherein the cell is incorporated into a matrix.
39. A method for promoting healing of a wound caused by thermal means in a mammal, the method comprising:
(a) locally administering to the wound an effective amount of an autologous or allogeneic cell comprising an expression vector encoding a Nell1 protein,
wherein the cell of step (a) expresses the Nell1 protein and is selected from the group consisting of an endothelial cell, epithelial cell, fibroblast, myoblast, satellite cell, skeletal muscle cell, and adult stem cell, and wherein said Nell1 protein has an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1, 3, or 5 and stimulates differentiation of precursor cells to maturity, thereby promoting healing of the wound caused by thermal means.
40. The method according to claim 39 , wherein the Nell1 protein comprises SEQ ID NO: 1.
41. The method according to claim 39 , wherein the Nell1 protein comprises SEQ ID NO: 3.
42. The method according to claim 39 , wherein the Nell1 protein comprises SEQ ID NO: 5.
43. The method according to claim 39 , wherein the Nell1 protein is a human Nell1 protein.
44. The method according to claim 39 , wherein the mammal is a human.
45. The method according to claim 39 , wherein local administration is by injection.
46. The method according to claim 39 , wherein local administration is topical.
47. The method according to claim 39 , wherein the mammal suffers from a disease or condition associated with impaired neovascularization or impaired angiogenesis.
48. The method according to claim 47 , wherein the mammal has diabetes, a vascular disease, or is aging.
49. The method according to claim 39 , wherein promoting healing of the wound comprises closure of the wound.
50. The method according to claim 39 , wherein the cell is incorporated into a matrix.
51. The method according to claim 1 , wherein said method comprises locally administering to the skeletal muscle wound an effective amount of an allogeneic cell expressing a Nell1 protein.
52. The method according to claim 14 , wherein said method comprises locally administering to the wound an effective amount of an allogeneic cell expressing a Nell1 protein.
53. The method according to claim 30 , wherein said method comprises locally administering to the site of skeletal muscle atrophy an effective amount of an allogeneic cell expressing a Nell1 protein.
54. The method according to claim 39 , wherein said method comprises locally administering to the wound an effective amount of an allogeneic cell expressing a Nell1 protein.
55. The method according to claim 13 , wherein said matrix comprises a wound dressing.
56. The method according to claim 29 , wherein said matrix comprises a wound dressing.
57. The method according to claim 38 , wherein said matrix comprises a wound dressing.
58. The method according to claim 50 , wherein said matrix comprises a wound dressing.
59. The method according to claim 1 , wherein the mammal is a horse.
60. The method according to claim 14 , wherein the mammal is a horse.
61. The method according to claim 30 , wherein the mammal is a horse.
62. The method according to claim 39 , wherein the mammal is a horse.
63. The method according to claim 1 , wherein said autologous or allogeneic cell comprises a nucleotide sequence having at least 90% sequence identity to SEQ ID NO: 2, 4, or 6.
64. The method according to claim 63 , wherein said nucleotide sequence comprises SEQ ID NO: 2, 4, or 6.
65. The method according to claim 63 , wherein said nucleotide sequence is operably linked to a promoter in an expression vector.
66. The method according to claim 14 , wherein said autologous or allogeneic cell comprises a nucleotide sequence having at least 90% sequence identity to SEQ ID NO: 2, 4, or 6.
67. The method according to claim 66 , wherein said nucleotide sequence comprises SEQ ID NO: 2, 4, or 6.
68. The method according to claim 66 , wherein said nucleotide sequence is operably linked to a promoter in an expression vector.
69. The method according to claim 30 , wherein said autologous or allogeneic cell comprises a nucleotide sequence having at least 90% sequence identity to SEQ ID NO: 2, 4, or 6.
70. The method according to claim 69 , wherein said nucleotide sequence comprises SEQ ID NO: 2, 4, or 6.
71. The method according to claim 69 , wherein said nucleotide sequence is operably linked to a promoter in an expression vector.
72. The method according to claim 39 , wherein said autologous or allogeneic cell comprises a nucleotide sequence having at least 90% sequence identity to SEQ ID NO: 2, 4, or 6.
73. The method according to claim 72 , wherein said nucleotide sequence comprises SEQ ID NO: 2, 4, or 6.
74. The method according to claim 72 , wherein said nucleotide sequence is operably linked to a promoter in an expression vector.
75. The method according to claim 1 , wherein said effective amount of said autologous or allogeneic cell is administered to said wound about 2 to about 3 days after wounding.
76. The method according to claim 14 , wherein said effective amount of said autologous or allogeneic cell is administered to said wound about 2 to about 3 days after wounding.
77. The method according to claim 39 , wherein said effective amount of said autologous or allogeneic cell is administered to said wound about 2 to about 3 days after wounding.