Genitrix, LLC

Opsanitx LLC

Whitehead Institute for Biomedical Research

Andrew H Segal

Elihu Young

Eli Young

The present invention provides a fusion polypeptide which can bind to a cell surface binding moiety (e.g., a carbohydrate) and serve as a ligand for a cell surface polypeptide, as well as a vector comprising a nucleic acid encoding for such a fusion polypeptide, and a host cell comprising such nucleic acid. The present invention also provides a composition comprising an antigen bearing target and such a fusion polypeptide, as well as a composition comprising a virus or a cell and such a fusion polypeptide. The present invention further relates to a method of modulating an immune response in an animal using such compositions.

Lectin compositions and methods for modulating an immune response to an antigen

The present invention also relates to a method of reducing metastases in a subject comprising administering to the subject a composition comprising a multifunctional molecule comprising a first part which is capable of binding to an antigen bearing target and a second part which is capable of binding to a cell.

The present invention relates to a fusion polypeptide comprising at least about 10 contiguous amino acid residues of an influenza virus hemagglutinin and at least about 5 contiguous amino acids of a naturally occurring GM-CSF molecule.

The invention provides compositions and methods for modulating immune responses in subjects. The invention is based, at least in part, on the discovery that an in-frame translation fusion of an antigen with an APC binding domain of an opsonin forms a molecule, that is, a fusion polypeptide, which when administered to a subject modulates an immune response to the antigen.

Vaccine compositions and methods of modulating immune responses

Vaccine compositions and method of modulating immune responses

Disclosed are methods and compositions wherein opsonin-enhanced cells, that is, cells which have been 1) modified so as to express an opsonin from a recombinant nucleic acid, 2) modified so as to express higher levels of an endogenous opsonin, or 3) mixed with an exogenous opsonin, when administered to a subject, modulate the immune response in the recipient to a selected antigen or antigens contained in or attached to the cells.

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Boston, MA, United States of America

Andrew H Segal