title: [Immunization witha synthetic fragment 155-164 of neurotrophin receptor p75 prevents memory loss and decreases beta-amyloid level in mice with experimentally induced Alzheimer's disease].
abstract: Neurotoxic beta-amyloid peptide plays an important role in the pathology of Alzheimer's disease. In aggregated form it binds to several proteins on the surface of the brain cells leading to their death. p75 receptor in- volved in supporting of cell balance is one of the targets for toxic beta-amyloid. We proposed that induction of antibodies against potential binding sites of p75 with beta-amyloid can be a promising approach towards new drug development for Alzheimer's disease therapy. Four potentially immunoactive fragments of p75 were chosen and chemically synthesized. Investigation of immunoprotective effect of the peptide fragments carried out in mice with experimentally induced form of Alzheimer's disease helped to reveal two fragments effectively preserving murine memory from impairment. Results obtained by ELISA biochemical analysis showed that only immunization with fragment p75 155-164 led to significant decrease in beta-amyloid level in the brain of the experimental mice. Thus, immunization with both fragments of p75 receptor is believed to be an effective tool for the development of new drugs against Alzheimer's disease.
authors.forename: O M
authors.initials: OM
authors.lastname: Vol'pina
authors.forename: N I
authors.initials: NI
authors.lastname: Medvinskaia
authors.forename: A V
authors.initials: AV
authors.lastname: Kamynina
authors.forename: Ia V
authors.initials: IaV
authors.lastname: Zaporozhskaia
authors.forename: I Iu
authors.initials: IIu
authors.lastname: Aleksandrova
authors.forename: D O
authors.initials: DO
authors.lastname: Koroev
authors.forename: A N
authors.initials: AN
authors.lastname: Samokhin
authors.forename: T D
authors.initials: TD
authors.lastname: Volkova
authors.forename: A S
authors.initials: AS
authors.lastname: Arsen'ev
authors.forename: N V
authors.initials: NV
authors.lastname: Bobkova
mesh_terms: D000544:Alzheimer Disease / Q000276:immunology / Q000473:pathology / Q000628:therapy*; D016229:Amyloid beta-Peptides / Q000737:chemistry / Q000276:immunology*; D000818:Animals; D000906:Antibodies / Q000008:administration & dosage* / Q000737:chemistry / Q000276:immunology; D001665:Binding Sites / Q000276:immunology; D006624:Hippocampus / Q000276:immunology / Q000473:pathology; D006801:Humans; D007114:Immunization; D008569:Memory Disorders / Q000188:drug therapy / Q000276:immunology; D051379:Mice; D009474:Neurons / Q000187:drug effects / Q000276:immunology / Q000473:pathology; D010446:Peptide Fragments / Q000008:administration & dosage* / Q000138:chemical synthesis / Q000276:immunology; D011485:Protein Binding / Q000276:immunology; D020800:Receptor, Nerve Growth Factor / Q000737:chemistry / Q000276:immunology* / Q000627:therapeutic use
chemical_list: D016229:Amyloid beta-Peptides; D000906:Antibodies; D010446:Peptide Fragments; D020800:Receptor, Nerve Growth Factor