Methods and compositions relating to synthetic β-1,6 glucosamine oligosaccharides
The invention relates to the compositions of synthetic oligo-β-(1→6)-2-amino-2-deoxy-D-glucopyranosides conjugated to carriers, and methods for making and use same.
1. A composition comprising
an oligosaccharide-carrier conjugate comprising an oligosaccharide conjugated to a carrier through a linker that is
wherein n is greater than l, m is a number selected from 1 to 10, p is a number selected from 1 to 20, and R is H or an alkyl group, and
wherein the linker is O-linked to the oligosaccharide and N-linked to the carrier, the oligosaccharide is a β-1,6-linked glucosamine and the carrier is a peptide or protein.
2. The composition of claim 1 , wherein the carrier is tetanus toxoid.
3. The composition of claim 1 , wherein the composition has an oligosaccharide to carrier ratio of 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, 20:1, 30:1, 40:1, 50:1, 60:1, 70:1, 80:1, 90:1 or 100:1.
4. The composition of claim 1 , wherein the oligosaccharide is 2-20 monomers in length.
5. The composition of claim 1 , wherein the oligosaccharide is 5-11 monomers in length.
6. The composition of claim 1 , wherein the oligosaccharide is 7, 9 or 11 monomers in length.
7. The composition of claim 1 , wherein the oligosaccharide is 0-40% acetylated.
8. The composition of claim 1 , further comprising a pharmaceutically acceptable carrier.
9. The composition of claim 1 , further comprising an adjuvant.
10. The composition of claim 1 , further comprising an anti-bacterial agent.