University Medicine Göttingen View Institution's Website 3 articles published in JoVE Medicine Coculture System with an Organotypic Brain Slice and 3D Spheroid of Carcinoma Cells Han-Ning Chuang1, Raphaela Lohaus1, Uwe-Karsten Hanisch2, Claudia Binder1, Faramarz Dehghani*3, Tobias Pukrop*1 1Department of Hematology and Oncology, University of Göttingen, 2Institute of Neuropathology, University of Göttingen, 3Institute of Anatomy and Cellbiology, University of Halle The organotypic brain slice coculture with carcinoma cells enables visualizing morphological changes by fluorescence as well as bright field (video) microscopy during the process of carcinoma cell invasion of brain tissue. This model system also allows for cell exchange and replenishment approaches and offers a wide variety of manipulations and analyses. Biology FRET Microscopy for Real-time Monitoring of Signaling Events in Live Cells Using Unimolecular Biosensors Julia U. Sprenger1, Ruwan K. Perera1, Konrad R. Götz1, Viacheslav O. Nikolaev1 1Emmy Noether Group of the DFG, Department of Cardiology and Pneumology, European Heart Research Insitute Göttingen, Georg August University Medical Center, Göttingen, Germany Förster resonance energy transfer (FRET) microscopy is a powerful technique for real-time monitoring of signaling events in live cells using various biosensors as reporters. Here we describe how to build a customized epifluorescence FRET imaging system from commercially available components and how to use it for FRET experiments. Medicine Clinical Testing and Spinal Cord Removal in a Mouse Model for Amyotrophic Lateral Sclerosis (ALS) René Günther1, Martin Suhr1, Jan C. Koch1, Mathias Bähr1,2, Paul Lingor1,2, Lars Tönges1 1Dept. of Neurology, University Medicine Göttingen, 2DFG Research Center for the Molecular Physiology of the Brain (CMPB), Göttingen, Germany A mouse model for amyotrophic lateral sclerosis (ALS) is examined clinically and behaviorally. As a prerequisite for an accompanying immunohistological analysis the preparation of the spinal cord is depicted in detail.