Immunogenic peptide composition comprising measles virus Fprotein Thelper cell epitope (MUFThl-16) and N-terminus of β-amyloid peptide
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United States of America Patent
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Jun 14, 2005
Grant Date -
Apr 10, 2003
app pub date -
May 25, 2001
filing date -
May 25, 2001
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Abstract
The present invention relates to a composition comprsing a peptide immunogen useful for the prevention and treatment of Alzheimer's Disease. More particularly, the peptide immunogen comprises a main functional/regulatory site, an N-terminal fragment of Amyloid β (Aβ) peptide linked to a helper T cell epitope (Th) having multiple class II MHC binding motifs. The peptide immunogen elicit a site-directed immune response against the main functional/regulatory site of the Aβ peptide and generate antibodies, which are highly cross-reactive to the soluble Aβ1-42 peptide and the amyloid plaques formed in the brain of Alzheimer's Disease patients. The antibodies elicited being cross reactive to the soluble Aβ1-42 peptide, promote fibril disaggregation and inhibit fibrillar aggregation leading to immunoneutralization of the 'soluble Aβ-derived toxins'; and being cross-reactive to the amyloid plaques, accelerate the clearance of these plaques from the brain. Thus, the composition of the invention comprising the peptide immunogen is useful for the prevention and treatment of Alzheimer's Disease.
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