JoVE Monthly Highlights: April 2018

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1JoVE Content Production

Visualization of Cellular Electrical Activity in Zebrafish Early Embryos and Tumors

Martin R. Silic1, GuangJun Zhang1,2
1Department of Comparative Pathobiology, Purdue University, 2Purdue University Center for Cancer Research, Purdue Institute for Inflammation, Immunology and Infectious Diseases (PI4D), Purdue Institute for Integrative Neuroscience (PIIN), Purdue University

Here, we show the process of creating a cellular electric voltage reporter zebrafish line to visualize embryonic development, movement, and fish tumor cells in vivo.

Radiation Planning Assistant - A Streamlined, Fully Automated Radiotherapy Treatment Planning System

Laurence E. Court1, Kelly Kisling1, Rachel McCarroll1, Lifei Zhang1, Jinzhong Yang1, Hannah Simonds2, Monique du Toit2, Chris Trauernicht2, Hester Burger3, Jeannette Parkes3, Mike Mejia4, Maureen Bojador4, Peter Balter1, Daniela Branco1, Angela Steinmann1, Garrett Baltz1, Skylar Gay1, Brian Anderson1, Carlos Cardenas1, Anuja Jhingran5, Simona Shaitelman5, Oliver Bogler6, Kathleen Schmeller7, David Followill1, Rebecca Howell1, Christopher Nelson1, Christine Peterson8, Beth Beadle5,9
1Department of Radiation Physics, University of Texas MD Anderson Cancer Center, 2Department of Radiation Oncology, Stellenbosch University and Tygerberg Hospital, 3Departments of Radiation Oncology and Medical Physics, Groote Schuur Hospital and University of Cape Town, 4Department of Radiation Oncology, University of Santo Tomas Hospital, Benavides Cancer Institute, 5Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, 6Academic Affairs, University of Texas MD Anderson Cancer Center, 7Department of Gynecological Oncology and Reproductive Medicine, University of Texas MD Anderson Cancer Center, 8Department of Biostatistics, University of Texas MD Anderson Cancer Center, 9Department of Radiation Oncology, Stanford University

Radiation therapy is a highly complex cancer treatment that requires multiple specialists to create a treatment plan and provide quality assurance (QA) prior to delivery to a patient. This protocol describes the use of a fully automated system, the Radiation Planning Assistant (RPA), to create high-quality radiation treatment plans.

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease

Allison A. Dilliott1,2, Sali M.K. Farhan3, Mahdi Ghani4, Christine Sato4, Eric Liang5, Ming Zhang4, Adam D. McIntyre1, Henian Cao1, Lemuel Racacho6,7, John F. Robinson1, Michael J. Strong1,8, Mario Masellis9,10, Dennis E. Bulman6,7, Ekaterina Rogaeva4, Anthony Lang10,11, Carmela Tartaglia4,10, Elizabeth Finger12,13, Lorne Zinman9, John Turnbull14, Morris Freedman10,15, Rick Swartz9, Sandra E. Black9,16, Robert A. Hegele1,2
1Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, 2Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, 3Analytic and Translational Genetics Unit, Center for Genomic Medicine, Harvard Medical School, Massachusetts General Hospital, Stanley Centre for Psychiatric Research, Broad Institute of MIT and Harvard, 4Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, 5School of Medicine, Faculty of Health Sciences, Queen's University, 6Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 7CHEO Research Institute, Faculty of Medicine, University of Ottawa, 8Department of Clinical Neurological Sciences, Western University, 9Division of Neurology, Department of Medicine, Sunnybrook Health Sciences Centre, University of Toronto, 10Division of Neurology, Department of Medicine, University of Toronto, 11Morton and Gloria Shulman Movement Disorders Centre, Toronto Western Hospital, 12Department of Clinical Neurological Sciences, Schulich School of Medicine and Dentistry, Western University, 13Parkwood Institute, St. Joseph's Health Care, 14Department of Medicine, Division of Neurology, McMaster University, 15Division of Neurology, Department of Medicine, Baycrest Health Sciences, 16Canadian Partnership for Stroke Recovery Sunnybrook Site, Sunnybrook Health Science Centre, University of Toronto

Targeted next-generation sequencing is a time- and cost-efficient approach that is becoming increasingly popular in both disease research and clinical diagnostics. The protocol described here presents the complex workflow required for sequencing and the bioinformatics process used to identify genetic variants that contribute to disease.

An In Vivo Murine Sciatic Nerve Model of Perineural Invasion

Sylvie Deborde*1, Yasong Yu*1, Andrea Marcadis1, Chun-Hao Chen1, Ning Fan2, Richard L. Bakst3, Richard J. Wong1
1Department of Surgery, Memorial Sloan Kettering Cancer Center, 2Molecular Cytology Core Facility, Memorial Sloan Kettering Cancer Center, 3Department of Radiation Oncology, Mount Sinai Hospital
* These authors contributed equally

We describe an in vivo murine model of perineural invasion by injecting syngeneic pancreatic cancer cells into the sciatic nerve. The model allows for quantification of the extent of nerve invasion, and supports investigation of the cellular and molecular mechanisms of perineural invasion.

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