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Gene Silencing: Interruption or suppression of the expression of a gene at transcriptional or translational levels.

Chitosan/Interfering RNA Nanoparticle Mediated Gene Silencing in Disease Vector Mosquito Larvae

1Division of Biology, Kansas State University, 2Department of Medical and Molecular Genetics, Indiana University School of Medicine, 3Eck Institute for Global Health, University of Notre Dame, 4Department of Biological Sciences, University of Notre Dame, 5Department of Entomology, Kansas State University

JoVE 52523


 Biology

Gene Silencing with Morpholinos

JoVE 5326

Morpholino-mediated gene silencing is a common technique used to study roles of specific genes during development. Morpholinos inhibit gene expression by hybridizing to complementary mRNAs. Due to their unique chemistry, morpholinos are easy to produce and store, which makes them remarkably cost effective compared to other gene silencing methods.

This video reviews proper experimental design when using these oligonucleotides. Following that, an explanation of morpholino microinjection techniques in zebrafish and the analysis of resulting phenotypes will be discussed. Finally, we showcase examples of specific applications where morpholino technology is used to model developmental disorders or to study tissue regeneration.


 Developmental Biology

Utilizing Functional Genomics Screening to Identify Potentially Novel Drug Targets in Cancer Cell Spheroid Cultures

1The Breast Cancer Now Toby Robins Research Centre, Division of Breast Cancer, The Institute of Cancer Research, 2Division of Molecular Pathology, The Institute of Cancer Research, 3Institute of Cancer Sciences, University of Manchester

JoVE 54738


 Cancer Research

Genome-wide RNAi Screening to Identify Host Factors That Modulate Oncolytic Virus Therapy

1Children's Hospital of Eastern Ontario (CHEO) Research Institute, 2Department of Biology, Microbiology and Immunology, University of Ottawa, 3Department of Pediatrics, University of Ottawa, 4Department of Microbiology, Immunology and Infectious Diseases, Cumming School of Medicine, University of Calgary

JoVE 56913


 Cancer Research

Genetic Engineering of Primary Mouse Intestinal Organoids Using Magnetic Nanoparticle Transduction Viral Vectors for Frozen Sectioning

1Department of Medicine, Division of Hematology, Johns Hopkins University School of Medicine, 2Department of Cell Biology, Johns Hopkins University School of Medicine, 3Department of Oncology, Johns Hopkins University School of Medicine, 4Department of Pathology, Johns Hopkins University School of Medicine, 5Institute for Cell Engineering, Johns Hopkins University School of Medicine

Video Coming Soon

JoVE 57040


 JoVE In-Press

Polyethyleneimine-coated Iron Oxide Nanoparticles As a Vehicle for the Delivery of Small Interfering RNA to Macrophages In Vitro and In Vivo

1Key Laboratory of Ministry of Education for Developmental Genes & Human Diseases, Institute of Life Sciences, Southeast University, 2State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials & Devices, School of Biological Science & Medical Engineering, Southeast University, 3Key Laboratory of Ministry of Education for Developmental Genes & Human Diseases, Medical School, Southeast University

Video Coming Soon

JoVE 58660


 JoVE In-Press

Porous Silicon Microparticles for Delivery of siRNA Therapeutics

1Department of Nanomedicine, Houston Methodist Research Institute, 2MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, 3Pediatrics Department of Union Hospital, Huazhong University of Science and Technology, 4CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience & Technology of China, 5Department of Medicine, Weill Cornell Medical College, 6Department of Cell and Developmental Biology, Weill Cornell Medical College

JoVE 52075


 Bioengineering

Pooled shRNA Screen for Reactivation of MeCP2 on the Inactive X Chromosome

1Clinical Research Division, Fred Hutchinson Cancer Research Center, 2Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, 3Epigenetics Program, Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, 4Departments of Medicine and Biochemistry, University of Washington

JoVE 56398


 Genetics

Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis

1The School of Plant Sciences, University of Arizona, 2Department of Chemical Engineering and Materials Science, DOE Great Lakes Bioenergy Research Center, Michigan State University, 3The Institute for Sustainable and Renewable Resources, The Institute for Advanced Learning and Research, 4Department of Plant, Soil and Microbial Sciences, Michigan State University

JoVE 51340


 Bioengineering

Systemic Delivery of MicroRNA Using Recombinant Adeno-associated Virus Serotype 9 to Treat Neuromuscular Diseases in Rodents

1Neurogenetics Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 2Section on Nervous System Development and Plasticity, The Eunice Kennedy Shriver National Institute of Child and Human Development, National Institutes of Health, 3Department of Molecular Biosciences, Rice Institute for Biomedical Research, Northwestern University, 4Department of Physiology, Anatomy and Genetics, University of Oxford

JoVE 55724


 Genetics

A Novel Feeder-free System for Mass Production of Murine Natural Killer Cells In Vitro

1Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, 2Li Ka Shing Institute of Health Sciences and Department of Medicine & Therapeutics, The Chinese University of Hong Kong

JoVE 56785


 Immunology and Infection

Ultrahigh Resolution Mouse Optical Coherence Tomography to Aid Intraocular Injection in Retinal Gene Therapy Research

1Research Service, VA Western New York Healthcare System, 2Department of Ophthalmology, (Ross Eye Institute), Jacobs School of Medicine and Biomedical Sciences, University at Buffalo- SUNY, 3Pharmacology/Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo- SUNY, 4Physiology/Biophysics, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo- SUNY, 5Neuroscience Program, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo- SUNY, 6The RNA Institute, University at Buffalo- SUNY, 7The SUNY Eye Institute

Video Coming Soon

JoVE 55894


 JoVE In-Press

Subpial Adeno-associated Virus 9 (AAV9) Vector Delivery in Adult Mice

1Neuroregeneration Laboratory, Department of Anesthesiology, University of California, San Diego, 2Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 3Department of Neurosurgery, University of California, San Diego, 4Institute of Neurobiology, Slovak Academy of Sciences

JoVE 55770


 Neuroscience

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