Murdoch University 5 articles published in JoVE Medicine A Mouse Model of Incompletely Resected Soft Tissue Sarcoma for Testing (Neo)adjuvant Therapies Francois X. Rwandamuriye1,2, Breana J. Weston2,3, Terrance G. Johns2, W. Joost Lesterhuis1,2, Rachael M. Zemek2 1School of Biomedical Sciences, University of Western Australia, 2Telethon Kids Institute, University of Western Australia, 3College of Science, Health, Engineering and Education, Murdoch University In this protocol, we describe a mouse model of incomplete surgical resection of soft tissue sarcoma for testing (neo)adjuvant therapies. Medicine Murine Precision-Cut Liver Slices as an Ex Vivo Model of Liver Biology Michael A. Pearen*1, Hong Kiat Lim*1, Francis D. Gratte2,3, Manuel A. Fernandez-Rojo1,4,5, Sujeevi K. Nawaratna6, Geoffrey N. Gobert7, John K. Olynyk8,9, Janina E. E. Tirnitz-Parker2,10, Grant A. Ramm1,4 1Hepatic Fibrosis Group, QIMR Berghofer Medical Research Institute, 2School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, 3School of Veterinary and Life Sciences, Murdoch University, 4School of Medicine, The University of Queensland, 5Madrid Institute for Advanced Studies (IMDEA) in Food, CEI UAM+CSIC, 6School of Medicine, Griffith University, 7 This protocol provides a simple and reliable method for the production of viable precision-cut liver slices from mice. The ex vivo tissue samples can be maintained under laboratory tissue culture conditions for multiple days, providing a flexible model to examine liver pathobiology. Biochemistry Untargeted Liquid Chromatography-Mass Spectrometry-Based Metabolomics Analysis of Wheat Grain Hayley Abbiss1,2,3, Joel P. A. Gummer1,4, Michael Francki5,6, Robert D. Trengove1 1Research and Innovation, Murdoch University, 2Centre for Digital Agriculture, Curtin University, 3Centre for Integrative Metabolomics and Computational Biology, School of Science, Edith Cowan University, 4Centre for Computational and System Medicine, Health Futures Institute, Murdoch University, 5Department of Primary Industries and Regional Development, 6State Agricultural Biotechnology Centre, Murdoch University A method for the untargeted analysis of wheat grain metabolites and lipids is presented. The protocol includes an acetonitrile metabolite extraction method and reversed phase liquid chromatography-mass spectrometry methodology, with acquisition in positive and negative electrospray ionization modes. Biology The Murine Choline-Deficient, Ethionine-Supplemented (CDE) Diet Model of Chronic Liver Injury Jully Gogoi-Tiwari1, Julia Köhn-Gaone1, Corey Giles2, Dirk Schmidt-Arras3, Francis D. Gratte1,4, Caryn L. Elsegood1, Geoffrey W. McCaughan5,6,7, Grant A. Ramm8,9, John K. Olynyk10,11, Janina E.E. Tirnitz-Parker1,12 1School of Biomedical Sciences & Curtin Health Innovation Research Institute, Curtin University, 2School of Public Health & Curtin Health Innovation Research Institute, Curtin University, 3Institute of Biochemistry, Christian-Albrechts-University, 4School of Veterinary and Life Sciences, Murdoch University, 5Centenary Institute of Cancer Medicine and Cell Biology, The University of Sydney, 6Royal Prince Alfred Hospital, 7A.W. Morrow Gastroenterology and Liver Centre, 8QIMR Berghofer Medical Research Institute, 9Faculty of Medicine and Biomedical Sciences, The University of Queensland, 10Fiona Stanley and Fremantle Hospitals, 11School of Medical and Health Sciences, Edith Cowan University, 12School of Medicine and Pharmacology, University of Western Australia Here we describe a common method to induce chronic liver injury in mice by feeding of a choline-deficient and ethionine-supplemented (CDE) diet. We demonstrate health monitoring, liver perfusion, isolation, and preservation. A time course of six weeks can inform about liver injury, pathohistology, fibrosis, inflammatory, and liver progenitor cell responses. Biochemistry Purification of Biotinylated Cell Surface Proteins from Rhipicephalus microplus Epithelial Gut Cells Thomas P. Karbanowicz1, Ala Lew-Tabor1,2, Manuel Rodriguez Valle1 1Queensland Alliance for Agriculture & Food Innovation, The University of Queensland, 2Centre for Comparative Genomics, Murdoch University A modified density centrifugation gradient-based methodology was utilized to isolate epithelial cells from Rhipicephalus microplus gut tissue. Surface-bound proteins were biotinylated and purified through streptavidin magnetic beads for utilization in downstream applications.