Reversible Pegylation of Nanocarriers
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United States of America Patent
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Feb 9, 2017
app pub date -
Dec 1, 2014
filing date -
Dec 2, 2013
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Abstract
The present invention relates to the preparation and use of reversibly PEGylated nanocarriers. The reversibly PEGgylated nanocarrier system comprises an inner core comprising or consisting of a nanoparticle and/or at least one pharmaceutical compound; optionally at least one lipid bilayer on the surface of the inner core; a first ligand bound to the surface of said inner core, or if present, to the surface of the at least one lipid bilayer; a second ligand bound to the first ligand, the second ligand being covalently bound to poly(ethylene glycol) or a derivative thereof. The reversibly PEGgylated nanocarrier system is characterized in that binding of the second ligand to the first ligand is non-covalent and reversible. Pharmaceutical compositions and use of such compounds and compositions in the field of e.g. cancer therapy, gene therapy, inflammatory diseases and pain therapy are also disclosed.
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