High resolution microscopy; live micrsocopy; parasite-host interaction; cell-cell competition; spinning disc microscopy; laser manipulation; nuclear organization; calcium signaling; cell fate; cell cycle
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Confocal microscopy has greatly advanced in the last ten years with the setup of sensitive and efficient spinning disk confocals (SD). These fully exploit the resolution, sensitivity and speed of CCD cameras, overcoming the limitations of classical point- or line-scanning devices. Due to their design, SD microscopes lead to less photodamage and photobleaching, making them ideally suited for live imaging. However, in vivo techniques to study cell dynamics and involving a focused laser beam are impossible to achieve with classical SD designs (FRAP, FRET, FLIP, photoactivation/photoswitch). We propose to setup the first commercially available spinning disk combined with a point laser scan head (SD-scan) in Switzerland to answer a variety of questions involving interaction of the Plasmodium parasite with its host hepatocyte, dynamic features of cell cycle regulation, cell-cell signaling, neuronal plasticity as well as subcellular and subnuclear organization. Ideal for all types of in vivo studies, this SD-scan microscope is able to image life samples ranging in size from intravital liver to subcellular structures.This SD-scan device will be part of the ‘Microscopy and Imaging Center’ (MIC) platform already established at the University of Bern, thus being available to interested researchers inside and outside the University.