Title |
Selective Uptake of Cylindrical Poly(2‐Oxazoline) Brush‐AntiDEC205 Antibody‐OVA Antigen Conjugates into DEC‐Positive Dendritic Cells and Subsequent T‐Cell Activation
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Published in |
Chemistry - A European Journal, August 2014
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DOI | 10.1002/chem.201403942 |
Pubmed ID | |
Authors |
Jasmin Bühler, Sabine Gietzen, Anika Reuter, Cinja Kappel, Karl Fischer, Sandra Decker, David Schäffel, Kaloian Koynov, Matthias Bros, Ingrid Tubbe, Stephan Grabbe, Manfred Schmidt |
Abstract |
To achieve specific cell targeting by various receptors for oligosaccharides or antibodies, a carrier must not be taken up by any of the very many different cells and needs functional groups prone to clean conjugation chemistry to derive well-defined structures with a high biological specificity. A polymeric nanocarrier is presented that consists of a cylindrical brush polymer with poly-2-oxazoline side chains carrying an azide functional group on each of the many side chain ends. After click conjugation of dye and an anti-DEC205 antibody to the periphery of the cylindrical brush polymer, antibody-mediated specific binding and uptake into DEC205(+) -positive mouse bone marrow-derived dendritic cells (BMDC) was observed, whereas binding and uptake by DEC205(-) negative BMDC and non-DC was essentially absent. Additional conjugation of an antigen peptide yielded a multifunctional polymer structure with a much stronger antigen-specific T-cell stimulatory capacity of pretreated BMDC than application of antigen or polymer-antigen conjugate. |
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