Abstract
The fruit fly Drosophila is widely used as a genetic model organism and recently emerged as a powerful system in which to study human diseases. We established fly models of Alzheimer’s disease (AD) by expressing AD-associated β-amyloid peptides or microtubule-associated protein tau in the fly brain. Electron microscopy (EM) is an essential tool used to diagnose and categorize human diseases and to evaluate whether transgenic models recapitulate pathological phenotypes. We employed EM analyses to gain an understanding of the pathological effects of expressing Aβ or tau on the ultrastructure of the brain and to localize β-amyloid within subcellular organelles. These analyses revealed that several critical pathologies observed in the brains of patients with AD are recapitulated in these fly models of the disease.
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Acknowledgement
This work was supported by grants from the National Institute of Health [R01AG032279] and [U01AG046170] to K.A. and K.M.I., the Alzheimer’s Association NIRG-10-173189 to K.A. and NIRG-08-91985 to K.M.I., the start-up funds from Tokyo Metropolitan University (to K.A.), Takeda Science Foundation, Japan (to K.M.I.), and Research Grant for Longevity Science 25-27, Japan (to K.M.I.).
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Ando, K., Hearn, S., Suzuki, E., Maruko-Otake, A., Sekiya, M., Iijima, K.M. (2015). Electron Microscopy of the Brains of Drosophila Models of Alzheimer’s Diseases. In: Van Bockstaele, E. (eds) Transmission Electron Microscopy Methods for Understanding the Brain. Neuromethods, vol 115. Humana Press, New York, NY. https://doi.org/10.1007/7657_2015_75
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DOI: https://doi.org/10.1007/7657_2015_75
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