US2019322723A1PendingUtilityA1

Peptide-Mediated Non-Covalent Delivery of Active Agents Across the Blood-Brain Barrier

Assignee: MAYO FOUND MEDICAL EDUCATION & RESPriority: Jul 14, 2009Filed: Jul 3, 2019Published: Oct 24, 2019
Est. expiryJul 14, 2029(~3 yrs left)· nominal 20-yr term from priority
A61P 31/18A61P 25/16A61P 35/00A61P 25/00A61P 25/08A61P 25/28A61K 49/0058C07K 14/775A61K 51/12C12Y 302/01023A61K 47/64A61K 38/47A61K 49/0056A61K 51/088A61K 51/1018A61K 39/39533Y02A50/30
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Claims

Abstract

The peptides described herein can function as carrier peptides. These peptides can associate with (e.g., non-covalently bind) biologically active molecules or imaging agents to transport the biologically active molecules or imaging across the blood-brain barrier. In some cases, such transport may increase the effectiveness of the biological molecules or imaging agents.

Claims

exact text as granted — not AI-modified
1 . (canceled) 
     
     
         2 . A method of transporting a nerve growth factor across the blood-brain barrier of a subject, the method comprising administering to the subject a complex, or a pharmaceutically acceptable salt thereof, comprising the biologically active molecule or imaging agent associated with a carrier peptide; wherein the carrier peptide comprises the sequence:
   X n —[B] m  
   
       or a pharmaceutically acceptable salt thereof, wherein:
 X is a hydrophilic amino acid; 
 B is a blood-brain barrier agent; 
 n is an integer from 4 to 50; and 
 m is integer from 1 to 3. 
 
     
     
         3 . The method of  claim 2 , wherein each X is independently chosen from arginine, asparagine, aspartic acid, glutamic acid, glutamine, lysine, serine, threonine, and tyrosine. 
     
     
         4 . The method of  claim 3 , wherein n is chosen from 4, 8, 12, 16, and 20. 
     
     
         5 . The method of  claim 4 , wherein n is 16. 
     
     
         6 . The method of  claim 2 , wherein m is 1. 
     
     
         7 . The method of  claim 2 , wherein the nerve growth factor is non-covalently bound to the carrier peptide. 
     
     
         8 . The method of  claim 2 , wherein the blood-brain barrier agent comprises a receptor binding domain of an apolipoprotein is chosen from the receptor binding domain of ApoA, ApoB, ApoC, ApoD, ApoE, ApoE2, ApoE3, and ApoE4. 
     
     
         9 . The method of  claim 2 , wherein B comprises the sequence: 
       
         
           
                 
               
                   (SEQ ID NO: 29) 
                 
                   L-R-X1-R-X2-X3-X4-H-L-R-X5-X6-X7-K-R-L-X8-R-D-X9 
                 
             
                
                
               
            
           
         
         wherein:
 X1 is selected from the group consisting of A, L, S, and V; 
 X2 is selected from the group consisting of L and M; 
 X3 is selected from the group consisting of A and S; 
 X4 is selected from the group consisting of N, S, and T; 
 X5 is selected from the group consisting of K and N; 
 X6 is selected from the group consisting of L, M, and V; 
 X7 is selected from the group consisting of R and P; 
 X8 is selected from the group consisting of L and M; and 
 X9 is selected from the group consisting of A and L. 
 
       
     
     
         10 . The method of  claim 9 , wherein the carrier peptide comprises the sequence: 
       
         
           
                 
               
                   (SEQ ID NO: 143) 
                 
                   [X] n -L-R-X1-R-X2-X3-X4-H-L-R-X5-X6-X7-K-R-L-X8-R- 
                 
                   D-X9 
                 
             
                
                
                
               
            
           
         
         wherein: 
         X is lysine. 
       
     
     
         11 . The method of  claim 10 , wherein the carrier peptide comprises the sequence: 
       
         
           
                 
               
                   (SEQ ID NO: 19) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 20) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 21) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 22) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 23) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 46) 
                 
                   K-K-K-K-L-R-S-R-L-A-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 47) 
                 
                   K-K-K-K-K-K-K-K-L-R-S-R-L-A-S-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 48) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-S-R-L-A-S-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 49) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-S-R-L-A-S-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 50) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-S-R-L- 
                 
                   A-S-H-L-R-K-L-R-K-R-L-L-R-D-A ; 
                 
                     
                 
                   (SEQ ID NO: 51) 
                 
                   K-K-K-K-L-R-V-R-M-A-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 52) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-M-A-S-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 53) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-M-A-S-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 54) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-M-A-S-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 55) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-M- 
                 
                   A-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 56) 
                 
                   K-K-K-K-L-R-V-R-L-A-T-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 57) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-T-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 58) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-T-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 59) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-T-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 60) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-T-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 61) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-P-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 62) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-P-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 63) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-P- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 64) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-K-L-P-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 65) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-K-L-P-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 66) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 67) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-R-K-R-L-M- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 68) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-L-R- 
                 
                   K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 69) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 70) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 71) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 72) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 73) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 74) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-N-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 75) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-N-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 76) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-V-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 77) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-V-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 78) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-V-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 79) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-K-V-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 80) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-K-V-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 81) 
                 
                   K-K-K-K-L-R-V-R-M-S-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 82) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-M-S-S-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 83) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-M-S-S-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 84) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-M-S-S-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 85) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-M- 
                 
                   S-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 86) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-V-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 87) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-V-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 88) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-V-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 89) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-N-V-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 90) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-N-V-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 91) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-M-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 92) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-M-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 93) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-M-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 94) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-N-M-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 95) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-N-M-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 96) 
                 
                   K-K-K-K-L-R-A-R-M-A-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 97) 
                 
                   K-K-K-K-K-K-K-K-L-R-A-R-M-A-S-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 98) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-A-R-M-A-S-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 99) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-A-R-M-A-S-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 100) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-A-R-M- 
                 
                   A-S-H-L-R-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 101) 
                 
                   K-K-K-K-L-R-V-R-L-S-S-H-L-R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 102) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-S-S-H-L-R-K-L-R-K-R-L-M- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 103) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-S-S-H-L-R-K-L-R- 
                 
                   K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 104) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-S-S-H-L- 
                 
                   R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 105) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   S-S-H-L-R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 106) 
                 
                   K-K-K-K-L-R-S-R-L-A-S-H-L-R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 107) 
                 
                   K-K-K-K-K-K-K-K-L-R-S-R-L-A-S-H-L-R-K-L-R-K-R-L-M- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 108) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-S-R-L-A-S-H-L-R-K-L-R- 
                 
                   K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 109) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-S-R-L-A-S-H-L- 
                 
                   R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 110) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-S-R-L- 
                 
                   A-S-H-L-R-K-L-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 111) 
                 
                   K-K-K-K-L-R-V-R-L-S-S-H-L-P-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 112) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-S-S-H-L-P-K-L-R-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 113) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-S-S-H-L-P-K-L-R- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 114) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-S-S-H-L- 
                 
                   P-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 115) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   S-S-H-L-P-K-L-R-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 116) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-M-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 117) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-M-R-K-R-L-M- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 118) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-K-M-R- 
                 
                   K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 119) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-K-M-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 120) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-K-M-R-K-R-L-M-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 121) 
                 
                   K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-L-P-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 122) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-L-P-K-R-L-L- 
                 
                   R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 123) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L-R-N-L-P- 
                 
                   K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 124) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-S-H-L- 
                 
                   R-N-L-P-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 125) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-S-H-L-R-N-L-P-K-R-L-L-R-D-A; 
                 
                     
                 
                   (SEQ ID NO: 131) 
                 
                   K-K-K-K-L-R-L-R-L-A-S-H-L-R-K-L-R-K-R-L-L-R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 132) 
                 
                   K-K-K-K-K-K-K-K-L-R-L-R-L-A-S-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 133) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-L-R-L-A-S-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 134) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-L-R-L-A-S-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 135) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-L-R-L- 
                 
                   A-S-H-L-R-K-L-R-K-R-L-L-R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 136) 
                 
                   K-K-K-K-L-R-V-R-L-A-N-H-L-R-K-L-R-K-R-L-L-R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 137) 
                 
                   K-K-K-K-K-K-K-K-L-R-V-R-L-A-N-H-L-R-K-L-R-K-R-L-L- 
                 
                   R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 138) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-N-H-L-R-K-L-R- 
                 
                   K-R-L-L-R-D-L; 
                 
                     
                 
                   (SEQ ID NO: 139) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L-A-N-H-L- 
                 
                   R-K-L-R-K-R-L-L-R-D-L; 
                 
                   or 
                 
                     
                 
                   (SEQ ID NO: 140) 
                 
                   K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-K-L-R-V-R-L- 
                 
                   A-N-H-L-R-K-L-R-K-R-L-L-R-D-L. 
                 
             
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
               
            
           
         
       
     
     
         12 . A method of treating a brain disorder in a subject, the method comprising administering to the subject a complex, or a pharmaceutically acceptable salt thereof, comprising a nerve growth factor associated with a carrier peptide, wherein the carrier peptide comprises the sequence:
   X n —[B] m  
   
       wherein:
 X is a hydrophilic amino acid; 
 B is a blood-brain barrier agent; 
 n is an integer from 4 to 50; and 
 m is integer from 1 to 3. 
 
     
     
         13 . The method of  claim 12 , wherein the brain disorder is chosen from: meningitis, epilepsy, multiple sclerosis, neuromyelitis optica, late-stage neurological trypanosomiasis, Parkinson's, progressive multifocal leukoencephalopathy, De Vivo disease, Alzheimer's disease, HIV Encephalitis, and cancer.

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