# US 9,040,078 B2 · Use of lipid conjugates in the treatment of diseases of the nervous system

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- Number: US 9,040,078 B2
- Document ID: US9040078B2
- Status: Granted
- Kind: B2
- Application number: 10/919,523
- Filed: 2004-08-17
- Published: 2005-04-14
- Granted: 2015-05-26
- Earliest claimed: 2000-01-10
- Assignees: Yissum Research Development Company of the Hebrew University of Jerusalem
- Applicants: Saul Yedgar
- Inventors: Saul Yedgar
- Web page: https://patentgrep.com/patent/US9040078B2

## CPC

- A61K 47/544: {Phospholipids}
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)

## Abstract

The invention provides a method for treating a subject suffering from a disease of the central nervous system which is associated with an inflammatory response, including, inter alia, multiple sclerosis, Amyotrophic Lateral Sclerosis (ALS), meningitis, Alzheimer's disease, pain, HIV-associated dementia, stroke, traumatic brain injury, encephalomyelitis, chronic inflammatory demyelinating polyneuropathy, cerebral ischemia-induced injury or any combination thereof. This invention further provides for the use of a conjugate, or composition comprising the same, for treating the subject, wherein the conjugate comprises a lipid or phospholipid moiety bonded to a physiologically acceptable monomer, dimer, oligomer, or polymer.

## Claims

### Claim 1

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (I):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the phospholipid moiety is directly linked to X via an amide bond and if Y is a spacer group, the spacer group is directly linked to X via an amide or an ester bond and to the phospholipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X, wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 2 (depends on 1)

The method of claim 1, wherein said glycosaminoglycan is hyaluronic acid, heparin, heparin sulfate, heparin, heparan sulfate, chondroitin sulfate, keratin, keratan sulfate, dermatan sulfate or a derivative thereof.

### Claim 3 (depends on 1)

The method of claim 1, wherein said glycosaminoglycan is hyaluronic acid.

### Claim 4 (depends on 1)

The method of claim 1, wherein said glycosaminoglycan is chondroitin sulfate.

### Claim 5 (depends on 4)

The method of claim 4, wherein said chondroitin sulfate is chondroitin-4-sulfate.

### Claim 6 (depends on 4)

The method of claim 4, wherein said chondroitin sulfate is chondroitin-6-sulfate.

### Claim 7 (depends on 1)

The method of claim 1, wherein said glycosaminoglycan is di- and trisaccharide unit monomers of glycosaminoglycans.

### Claim 8

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (II):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the phospholipid moiety is directly linked to X via an amide bond and if Y is a spacer group, the spacer group is directly linked to X via an amide or an ester bond and to the phospholipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 9

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (III):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Z is either nothing, inositol, choline, or glycerol;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the phospholipid moiety is directly linked to X via an amide bond and if Y is a spacer group, the spacer group is directly linked to X via an amide or an ester bond and to the phospholipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 10

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (IV):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Z is either nothing, ethanolamine, serine, inositol, choline, or glycerol;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the phospholipid moiety is directly linked to X via an amide bond and if Y is a spacer group, the spacer group is directly linked to X via an amide or an ester bond and to the phospholipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 11

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (V):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Z is either nothing, ethanolamine, serine, inositol, choline, or glycerol;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the phospholipid moiety is directly linked to X via an amide bond and if Y is a spacer group, the spacer group is directly linked to X via an amide or an ester bond and to the phospholipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 12

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (VI):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Z is either nothing, ethanolamine, serine, inositol, choline, or glycerol;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the phospholipid moiety is directly linked to the glycosaminoglycan via an amide bond and if Y is a spacer group, the spacer group is directly linked to the glycosaminoglycan via an amide or an ester bond and to the phospholipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 13

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (VII):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the lipid moiety is directly linked to the glycosaminoglycan via an amide bond and if Y is a spacer group, the spacer group is directly linked to the glycosaminoglycan via an amide or an ester bond and to the lipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 14

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (VIII):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Z is either ethanolamine, serine, inositol, choline, or glycerol;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the lipid moiety is directly linked to the glycosaminoglycan via an amide bond and if Y is a spacer group, the spacer group is directly linked to the glycosaminoglycan via an amide or an ester bond and to the lipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 15

A method of ameliorating damage to the nervous system in a subject suffering from multiple sclerosis in need thereof, comprising administering to said subject an effective amount of a conjugate having the general structure of formula (IX):
wherein
R1 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
R2 is a linear, saturated, mono-unsaturated, or poly-unsaturated, alkyl chain ranging in length from 2 to 30 carbon atoms;
Z is either choline, phosphate, inositol, or glycerol;
Y is either nothing or a spacer group ranging in length from 2 to 30 atoms, wherein said spacer comprises —CO-alkylene-NH—, —CO-alkylene-CO— or a combination thereof;
wherein if Y is nothing the lipid moiety is directly linked to the glycosaminoglycan via an amide bond and if Y is a spacer group, the spacer group is directly linked to the glycosaminoglycan via an amide or an ester bond and to the lipid moiety via an amide bond;
X is a glycosaminoglycan; and
n is the number of lipid moiety molecules bound to a molecule of X wherein n is a number from 1 to 1000;
wherein said damage to the nervous system in said subject is ameliorated.

### Claim 16 (depends on 1)

The method of claim 1, wherein said subject is administered a composition comprising said conjugate.

### Claim 17 (depends on 16)

The method of claim 16, wherein said composition further comprises a pharmaceutically acceptable carrier or excipient.

### Claim 18 (depends on 1)

The method of claim 1, wherein said damage to the nervous system is caused by inflammation.
