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Assembly of paired helical filaments from mouse tau: implications for the neurofibrillary pathology in transgenic mouse models for Alzheimer’s disease

By T. Kampers, M. Pangalos, H. Geerts, H. Wiech and E. Mandelkow

Abstract

AbstractIn Alzheimer’s disease and related dementias, human tau protein aggregates into paired helical filaments and neurofibrillary tangles. However, such tau aggregates have not yet been demonstrated in transgenic mouse models of the disease. One of the possible explanations would be that mouse tau has different properties which prevents it from aggregating. We have cloned several murine tau isoforms, containing three or four repeats and different combinations of inserts, expressed them in Escherichia coli and show here that they can all be assembled into paired helical filaments similar to those in Alzheimer’s disease, using the same protocols as with human tau. Therefore, the absence of pathologically aggregated tau in transgenic mice cannot be explained by intrinsic differences in mouse tau protein and instead must be explained by other as yet unknown factors

Publisher: Federation of European Biochemical Societies. Published by Elsevier B.V.
Year: 1999
DOI identifier: 10.1016/S0014-5793(99)00522-0
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