Immunostimulatory compositions and methods of use thereof
AssigneeMassachusetts Institute of Technology
InventorsDarrell Irvine, Haipeng Liu
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Abstract
Lipid conjugates for enhanced delivery of cargo to the lymph nodes are disclosed. The lipid conjugates typically include three domains: a lipophilic domain that binds to albumin, a polar block domain, and a cargo such as a molecular adjuvant or immunostimulatory compound (such as an oligonucleotide) or antigenic peptide. Depending on the cargo, the length and compositions of the polar block can be tailored to push the equilibrium toward albumin binding, stable micelle formation, or cell insertion. The conjugates can be administered to a subject, for example, a subject with cancer or an infection, to induce or enhance a robust immune response in the subject.
Claims33
1-17. (canceled)
An amphiphilic peptide conjugate comprising a peptide which
- (i) is conjugated directly to an albumin-binding domain, or
- (ii) is linked to a linker which is conjugated to the albumin-binding domain,
- wherein the albumin-binding domain binds to albumin under physiological conditions.
The peptide conjugate of claim 48 wherein the lipid is a diacyl lipid.
The peptide conjugate of claim 48 wherein the acyl chains of the lipid comprise 12-30 hydrocarbon units.
25-27. (canceled)
Dependencies are inferred from the claim text.