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Updated: Feb 5, 2026

Multi-exon Skipping Using Cocktail Antisense Oligonucleotides in the Canine X-linked Muscular Dystrophy
Published on: May 24, 2016
Exon Skipping by Ultrasound-Enhanced Delivery of Morpholino with Bubble Liposomes for Myotonic Dystrophy Model Mice
Yoichi Negishi1, Yoko Endo-Takahashi2, Shoichi Ishiura3
1Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan. negishi@toyaku.ac.jp.
Abstract:
Abnormal splicing of the chloride channel 1 (CLCN1) gene causes myotonic dystrophy type 1 (DM1). Therefore, controlling the alternative splicing process of this gene by antisense oligonucleotides can be a promising treatment for DM1. In this study, we describe an efficient phosphorodiamidate morpholino oligomer (PMO) delivery method by ultrasound-mediated bubble liposomes, which is a known gene delivery tool with ultrasound exposure, to treat skeletal muscles in a DM1 mouse model, HSALR. Effective delivery of PMO using this technique can help control the alternative splicing of the Clcn1 gene via exon skipping and enhance the expression of Clcn1 protein in skeletal muscles and the amelioration of myotonia. Thus, exon skipping by PMO delivery with ultrasound-mediated BLs may be feasible in myotonic dystrophy model mice.
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