Multicellular living organisms and unmodified parts thereof and – Nonhuman animal
Patent
1995-06-07
1998-09-22
Crouch, Deborah
Multicellular living organisms and unmodified parts thereof and
Nonhuman animal
800DIG1, 435354, 935 60, C12N 500, C12N 1500
Patent
active
058116338
ABSTRACT:
The construction of transgenic mouse models for testing potential treatments for Alzheimer's disease are described. The models are characterized by a greater similarity to the conditions existing in naturally occurring Alzheimer's disease, based on expression of all three forms of the .beta.-amyloid precursor protein (APP), APP.sub.695, APP.sub.751, and APP.sub.770), as well as various point mutations based on naturally occurring mutations, such as the London and Indiana familial Alzheimer's disease (FAD) mutations at amino acid 717, and predicted mutations in the APP gene. The APP gene constructs are prepared using the naturally occurring promoter, as well as inducible promoters such as the mouse metallothionine promoter, which can be regulated by addition of heavy metals such as zinc to the mouse's water or diet, and promoters such as the rat neuron specific enolase promoter, human .beta. actin gene promoter, human platelet derived growth factor B (PDGF-B) chain gene promoter, rat sodium channel gene promoter, mouse myelin basic protein gene promoter, human copper-zinc superoxide dismutase gene promoter, and mammalian POU-domain regulatory gene promoter. The constructs are introduced into mouse embryos using standard techniques such as microinjection. Mouse cells can be isolated from the transgenic mice or prepared using the same constructs with standard techniques such as lipofection or electroporation. The transgenic mice, or mouse cells, are used to screen for compounds altering the pathological course of Alzheimer's Disease as measured by their effect on the amount and histopathology of APP and .beta.-amyloid peptide in the mice, as well as by behavioral alterations.
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Leibowitz Paul J.
Snyder Benjamin
Wadsworth Samuel
Wei Cha-Mer
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