Poznan University of Medical Sciences View Institution's Website 3 articles published in JoVE Cancer Research Detection of Lung Tumor Progression in Mice by Ultrasound Imaging Nour Ghaddar1,2, Shuo Wang1, Véronique Michaud1, Urszula Kazimierczak1,3, Nicolas Ah-son1, Antonis E. Koromilas1,4 1Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, 2Division of Experimental Medicine, Faculty of Medicine, McGill University, 3Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 4Gerald Bronfman Department of Oncology, Faculty of Medicine, McGill University This protocol describes the steps taken to induce KRAS lung tumors in mice as well as the quantification of formed tumors by ultrasound imaging. Small tumors are visualized in early timepoints as B-lines. At later timepoints, relative tumor volume measurements are achieved by the measurement tool in the ultrasound software. Biology Methods to Classify Cytoplasmic Foci as Mammalian Stress Granules Anaïs Aulas*1,2, Marta M. Fay*1,2, Witold Szaflarski1,2,3, Nancy Kedersha1,2, Paul Anderson1,2, Pavel Ivanov1,2,4 1 Stress Granules (SGs) are nonmembranous cytoplasmic structures that form in cells exposed to a variety of stresses. SGs contain mRNAs, RNA-binding proteins, small ribosomal subunits, translation-related factors, and various cell signaling proteins. This protocol describes a workflow that uses several experimental approaches to detect, characterize, and quantify bona fide SGs. Biology Selecting and Isolating Colonies of Human Induced Pluripotent Stem Cells Reprogrammed from Adult Fibroblasts Urszula Polak1,2, Calley Hirsch1, Sherman Ku3, Joel Gottesfeld3, Sharon Y.R. Dent1, Marek Napierala1 1Department of Molecular Carcinogenesis and Center for Cancer Epigenetics, University of Texas M.D. Anderson Cancer Center, 2Department of Cell Biology, Poznan University of Medical Sciences, 3Department of Molecular Biology, The Scripps Research Institute We present a protocol for efficient reprogramming of human somatic cells into human induced pluripotent stem cells (hiPSC) using retroviral vectors encoding Oct3/4, Sox2, Klf4 and c-myc (OSKM) and identification of correctly reprogrammed hiPSC by live staining with Tra-1-81 antibody.
