A synthetic fragment 60–70 of the receptor for advanced glycation end products exhibits a therapeutic effect in an animal model of Alzheimer’s disease

Six synthetic peptides overlapping a fragment 60–76 of the receptor for advanced glycation end products (RAGE) were studied on a protective effect on spatial memory of animals in the experimental model of Alzheimer’s disease. It was shown that only a peptide corresponding to the fragment 60–70 of RAGE exhibits a therapeutic activity. Intranasal administration of this peptide into bulbectomized mice, which develop neurodegenerative features of the Alzheimer type, completely protects animal memory. Thus, it was found that the N-terminal region (60–70) within the peptide sequence 60–76 of RAGE is responsible for the revealed protective effect. The synthetic peptide RAGE-(60–70) could be the basis for the development of a new drug for the treatment of Alzheimer’s disease.