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Open Access. Powered by Scholars. Published by Universities.®

University of Nebraska Medical Center

2020

Amyloid

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Full-Text Articles in Medicine and Health Sciences

Two C-Terminal Sequence Variations Determine Differential Neurotoxicity Between Human And Mouse Α-Synuclein, Natalie Landeck, Katherine E. Strathearn, Daniel Ysselstein, Kerstin Buck, Sayan Dutta, Siddhartha Banerjee, Zhengjian Lv, John D. Hulleman, Jagadish Hindupur, Li-Kai Lin, Sonal Padalkar, Lia A. Stanciu, Yuri L. Lyubchenko, Deniz Kirik, Jean-Christophe Rochet Sep 2020

Two C-Terminal Sequence Variations Determine Differential Neurotoxicity Between Human And Mouse Α-Synuclein, Natalie Landeck, Katherine E. Strathearn, Daniel Ysselstein, Kerstin Buck, Sayan Dutta, Siddhartha Banerjee, Zhengjian Lv, John D. Hulleman, Jagadish Hindupur, Li-Kai Lin, Sonal Padalkar, Lia A. Stanciu, Yuri L. Lyubchenko, Deniz Kirik, Jean-Christophe Rochet

Journal Articles: Pharmaceutical Sciences

BACKGROUND: α-Synuclein (aSyn) aggregation is thought to play a central role in neurodegenerative disorders termed synucleinopathies, including Parkinson's disease (PD). Mouse aSyn contains a threonine residue at position 53 that mimics the human familial PD substitution A53T, yet in contrast to A53T patients, mice show no evidence of aSyn neuropathology even after aging. Here, we studied the neurotoxicity of human A53T, mouse aSyn, and various human-mouse chimeras in cellular and in vivo models, as well as their biochemical properties relevant to aSyn pathobiology.

METHODS: Primary midbrain cultures transduced with aSyn-encoding adenoviruses were analyzed immunocytochemically to determine relative dopaminergic neuron viability. …