ENGINEERED ERYTHROID CELLS INCLUDING LOADABLE ANTIGEN-PRESENTING POLYPEPTIDES AND METHODS OF USE

The present disclosure provides customizable enucleated erythroid cells or enucleated cells that can be engineered to include, on their surface, a loadable exogenous antigen-presenting polypeptide, wherein the loadable exogenous antigen-presenting polypeptide comprises one or more amino acid substit...

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Bibliographische Detailangaben
Hauptverfasser: WICKHAM, Thomas Joseph, DASTAGIR, Shamael, NANNA, Alex Richard, SALVAT, Regina Sophia, CHEN, Tiffany, MCLAUGHLIN, Douglas Charles, MOORE, Christopher Lawrence
Format: Patent
Sprache:eng
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Zusammenfassung:The present disclosure provides customizable enucleated erythroid cells or enucleated cells that can be engineered to include, on their surface, a loadable exogenous antigen-presenting polypeptide, wherein the loadable exogenous antigen-presenting polypeptide comprises one or more amino acid substitutions. In some embodiments, the one or more amino acid substitutions stabilize the loadable exogenous antigen-presenting polypeptide on the cell surface. In some embodiments, the loadable exogenous antigen-presenting polypeptide is stabilized on the cell surface in the absence of a polypeptide bound to the loadable exogenous antigen-presenting polypeptide. In some embodiments, the loadable exogenous antigen-presenting polypeptide comprises an exogenous displaceable polypeptide bound to the loadable exogenous antigen-presenting polypeptide. In some embodiments, the loadable exogenous antigen-presenting polypeptide is stabilized on the cell surface upon release of the displaceable polypeptide.