The present invention relates to a chimeric molecule comprising (i) a targeting moiety that binds to heparin or heparan sulfate proteoglycans, (ii) a lysosomal peptide or protein, (iii) wherein the targeting moiety is a neurotrophic growth factor and/or, wherein the targeting moiety comprises one of the following consensus sequences BBXB, BXBB, BBXXB, BXXBB, BBXXXB or BXXXBB and wherein B represents an arginine, lysine or histidine amino acid and X represents any amino acid, (iii) with the proviso that the targeting moiety is at least thirteen amino acids long.
