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Purpose. Brain-derived neurotrophic factor (BDNF) was modified by carboxyl-directed protein pegylation in order to both retain biologic activity of the neurotrophin and reduce the rate of systemic clearance of this cationic protein in vivo. Since the modification of surface lysine residues of neurotrophins results in loss of biologic activity, the present studies examine the feasibility of placing...
Purpose. Peptide drug delivery to the brain requires optimization of (a) plasma pharmacokinetics and (b) blood-brain barrier (BBB) permeability. In the present studies, plasma pharmacokinetics are improved with protein pegylation and BBB transport is facilitated with the use of vector-mediated drug delivery using the OX26 monoclonal antibody (MAb) to the rat transferrin receptor, which undergoes...
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