Home > Publications database > Drosophila appear resistant to trans-synaptic tau propagation. > print

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024 7 _ |a 10.1093/braincomms/fcae256
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100 1 _ |a Catterson, James H
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245 _ _ |a Drosophila appear resistant to trans-synaptic tau propagation.
260 _ _ |a [Großbritannien]
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520 _ _ |a Alzheimer's disease is the most common cause of dementia in the elderly, prompting extensive efforts to pinpoint novel therapeutic targets for effective intervention. Among the hallmark features of Alzheimer's disease is the development of neurofibrillary tangles comprised of hyperphosphorylated tau protein, whose progressive spread throughout the brain is associated with neuronal death. Trans-synaptic propagation of tau has been observed in mouse models, and indirect evidence for tau spread via synapses has been observed in human Alzheimer's disease. Halting tau propagation is a promising therapeutic target for Alzheimer's disease; thus, a scalable model system to screen for modifiers of tau spread would be very useful for the field. To this end, we sought to emulate the trans-synaptic spread of human tau in Drosophila melanogaster. Employing the trans-Tango circuit mapping technique, we investigated whether tau spreads between synaptically connected neurons. Immunohistochemistry and confocal imaging were used to look for tau propagation. Examination of hundreds of flies expressing four different human tau constructs in two distinct neuronal populations reveals a robust resistance in Drosophila to the trans-synaptic spread of human tau. This resistance persisted in lines with concurrent expression of amyloid-β, in lines with global human tau knock-in to provide a template for human tau in downstream neurons, and with manipulations of temperature. These negative data are important for the field as we establish that Drosophila expressing human tau in subsets of neurons are unlikely to be useful to perform screens to find mechanisms to reduce the trans-synaptic spread of tau. The inherent resistance observed in Drosophila may serve as a valuable clue, offering insights into strategies for impeding tau spread in future studies.
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650 _ 7 |a Alzheimer’s disease
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650 _ 7 |a Drosophila melanogaster
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650 _ 7 |a neurodegeneration
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650 _ 7 |a tau
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650 _ 7 |a trans-synaptic
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700 1 _ |a Mouofo, Edmond N
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700 1 _ |a López De Toledo Soler, Inés
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700 1 _ |a Lean, Gillian
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700 1 _ |a Dlamini, Stella
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700 1 _ |a Liddell, Phoebe
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700 1 _ |a Voong, Graham
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700 1 _ |a Katsinelos, Taxiarchis
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700 1 _ |a Wang, Yu-Chun
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700 1 _ |a Schoovaerts, Nils
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700 1 _ |a Verstreken, Patrik
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700 1 _ |a Spires-Jones, Tara L
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700 1 _ |a Durrant, Claire S
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773 _ _ |a 10.1093/braincomms/fcae256
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