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University of Toyama

2 ARTICLES PUBLISHED IN JoVE

Neuroscience

Visualizing Axonal Growth Cone Collapse and Early Amyloid β Effects in Cultured Mouse Neurons

¹Division of Neuromedical Science, Institute of Natural Medicine, University of Toyama

Here a protocol to investigate the early effects of amyloid-β (Aβ) in the brain is presented. This shows that Aβ induces clathrin-mediated endocytosis and collapse of axonal growth cones. The protocol is useful in studying early effects of Aβ on axonal growth cones and may facilitate prevention of Alzheimer's disease.

Genetics

Use of Freeze-thawed Embryos for High-efficiency Production of Genetically Modified Mice

Hirofumi Nishizono^*1,2,3, Mohamed Darwish^*4,5, Hideki Uosaki^6,7, Nanami Masuyama^8,9,10, Motoaki Seki^8,11, Hiroyuki Abe³, Nozomu Yachie^8,9,10,12,13, Ryohei Yasuda¹

¹Max Planck Florida Institute for Neuroscience, ²Life Science Research Center, University of Toyama, ³Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, ⁴Graduate School of Innovative Life Science, University of Toyama, ⁵Department of Biochemistry, Faculty of Pharmacy, Cairo University, ⁶Division of Regenerative Medicine, Center for Molecular Medicine, Jichi Medical University, ⁷Division of Stem Cell Research and Drug Development, Center for Development of Advanced Medical Technology, Jichi Medical University, ⁸Synthetic Biology Division, Research Center for Advanced Science and Technology, University of Tokyo, ⁹Institute for Advanced Biosciences, Keio University, ¹⁰Graduate School of Media and Governance, Keio University, ¹¹Department of Molecular Oncology, Graduate School of Medicine, Chiba University, ¹²Department of Biological Sciences, School of Science, University of Tokyo, ¹³College of Arts and Sciences, University of Tokyo

Here, we present a modified method for cryopreservation of one-cell embryos as well as a protocol that couples the use of freeze-thawed embryos and electroporation for the efficient generation of genetically modified mice.