Pasteur Institute Italy-Fondazione Cenci Bolognetti 2 articles published in JoVE Medicine Inducing and Characterizing Vesicular Steatosis in Differentiated HepaRG Cells Silvia Di Cocco1,2, Laura Belloni3, Abigail D.G. Nunn3, Debora Salerno3, Silvia Piconese2,4, Massimo Levrero2,3,5,6, Natalia Pediconi1,3 1Department of Molecular Medicine, Sapienza University, 2Department of Internal Medicine - DMISM, Sapienza University, 3Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, 4Pasteur Institute Italy-Fondazione Cenci Bolognetti, 5INSERM U1052-Cancer Research Center of Lyon, 6Department of Hepatology, Croix Rousse Hospital, Hospices Civils de Lyon In this study, we describe a detailed protocol for inducing liver vesicular steatosis in differentiated HepaRG cells with the fatty acid salt sodium oleate and employ methods for detection and quantification of lipid accumulation, including coherent anti-Stokes Raman scattering (CARS) microscopy, cytofluorimetric analysis, Oil red O staining, and qPCR. Immunology and Infection Imaging InlC Secretion to Investigate Cellular Infection by the Bacterial Pathogen Listeria monocytogenes Andreas Kühbacher1,2,3, Edith Gouin1,2,3, Jason Mercer4, Mario Emmenlauer5, Christoph Dehio5, Pascale Cossart1,2,3, Javier Pizarro-Cerdá1,2,3 1Unité des Interactions Bactéries Cellules, Pasteur Institute, 2INSERM U604, 3Institut National de la Recherche Agronomique (INRA), USC2020, 4Institute of Biochemistry, ETH Zürich, 5Focal Area Infection Biology, Biozentrum, University of Basel Listeria monocytogenes is a Gram positive bacterial pathogen frequently used as a major model for the study of intracellular parasitism. Imaging late L. monocytogenes infection stages within the context of small-interfering RNA screens allows for the global study of cellular pathways required for bacterial infection of target host cells.
