Abstract
Advances in transgenic technology as well as in the genetics of Alzheimer disease (AD) have allowed the establishment of animal models that reproduce amyloid-beta plaques and neurofibrillary tangles, the main pathological hallmarks of AD. Among these models, 3xTg-AD mice harboring PS1 M146V, APP Swe and tau P301L human transgenes provided the model that most closely mimics human AD features. Although cortical cultures from 3xTg-AD mice have been shown to present disturbances in intracellular [Ca2+] homeostasis, the development of AD pathology in vitro has not been previously evaluated. In the current work, we determined the temporal profile for amyloid precursor protein, amyloid-β and tau expression in primary cortical cultures from 3xTg-AD mice. Immunocytochemistry and Western blot analysis showed an increased expression of these proteins as well as several phosphorylated tau isoforms with time in culture. Alterations in calcium homeostasis and cholinergic and glutamatergic responses were also observed early in vitro. Thus, 3x-TgAD cortical neurons in vitro provide an exceptional tool to investigate pharmacological approaches as well as the cellular basis for AD and related diseases.
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Acknowledgments
This work was funded with grants from Ministerio de Ciencia y Tecnología, Spain: AGL2006-08439/ALI, AGL2007-60946/ALI, Ministerio Educación y Ciencia SAF2006-13642. From Xunta de Galicia, Spain: GRC 30/2006, PGIDIT 07MMA006261PR and PGIDT07CSA012261PR, PGDIT 07MMA006261PR, 2008/CP389 (EPITOX, Consellería de Innovación e Industria, programa IN.CI.TE.) and 2009/053 from Conselleria de Educación e Ordenación Universitaria. From EU VIth Frame Program: IP FOOD-CT-2004-06988 (BIOCOP), and CRP 030270-2 (SPIES-DETOX). From EU VIIth Frame Program: 211326-CP (CONffIDENCE); STC-CP2008-1-555612 (Atlantox). E. Alonso is recipient of a predoctoral fellowship from Ministerio de Sanidad y Consumo, Spain.
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Vale, C., Alonso, E., Rubiolo, J.A. et al. Profile for Amyloid-β and Tau Expression in Primary Cortical Cultures from 3xTg-AD Mice. Cell Mol Neurobiol 30, 577–590 (2010). https://doi.org/10.1007/s10571-009-9482-3
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DOI: https://doi.org/10.1007/s10571-009-9482-3