{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T12:47:10Z","timestamp":1792068430729,"version":"4.4.0"},"reference-count":81,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"648","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sci. Transl. Med."],"published-print":{"date-parts":[[2022,6,8]]},"abstract":"<jats:p>\n                    Brugada syndrome (BrS) is a fatal arrhythmia that causes an estimated 4% of all sudden death in high-incidence areas.\n                    <jats:italic>SCN5A<\/jats:italic>\n                    encodes cardiac sodium channel Na\n                    <jats:sub>V<\/jats:sub>\n                    1.5 and causes 25 to 30% of BrS cases. Here, we report generation of a knock-in (KI) mouse model of BrS (\n                    <jats:italic>\n                      Scn5a\n                      <jats:sup>G1746R\/+<\/jats:sup>\n                    <\/jats:italic>\n                    ). Heterozygous KI mice recapitulated some of the clinical features of BrS, including an ST segment abnormality (a prominent J wave) on electrocardiograms and development of spontaneous ventricular tachyarrhythmias (VTs), seizures, and sudden death. VTs were caused by shortened cardiac action potential duration and late phase 3 early afterdepolarizations associated with reduced sodium current density (\n                    <jats:italic>I<\/jats:italic>\n                    <jats:sub>Na<\/jats:sub>\n                    ) and increased\n                    <jats:italic>Kcnd3<\/jats:italic>\n                    and\n                    <jats:italic>Cacna1c<\/jats:italic>\n                    expression. We developed a gene therapy using adeno-associated virus serotype 9 (AAV9) vector-mediated\n                    <jats:italic>MOG1<\/jats:italic>\n                    delivery for up-regulation of MOG1, a chaperone that binds to Na\n                    <jats:sub>V<\/jats:sub>\n                    1.5 and traffics it to the cell surface. MOG1 was chosen for gene therapy because the large size of the\n                    <jats:italic>SCN5A<\/jats:italic>\n                    coding sequence (6048 base pairs) exceeds the packaging capacity of AAV vectors. AAV9-\n                    <jats:italic>MOG1<\/jats:italic>\n                    gene therapy increased cell surface expression of Na\n                    <jats:sub>V<\/jats:sub>\n                    1.5 and ventricular\n                    <jats:italic>I<\/jats:italic>\n                    <jats:sub>Na<\/jats:sub>\n                    , reversed up-regulation of\n                    <jats:italic>Kcnd3<\/jats:italic>\n                    and\n                    <jats:italic>Cacna1c<\/jats:italic>\n                    expression, normalized cardiac action potential abnormalities, abolished J waves, and blocked VT in\n                    <jats:italic>\n                      Scn5a\n                      <jats:sup>G1746R\/+<\/jats:sup>\n                    <\/jats:italic>\n                    mice. Gene therapy also rescued the phenotypes of cardiac arrhythmias and contractile dysfunction in heterozygous humanized KI mice with\n                    <jats:italic>SCN5A<\/jats:italic>\n                    mutation p.D1275N. Using a small chaperone protein may have broad implications for targeting disease-causing genes exceeding the size capacity of AAV vectors.\n                  <\/jats:p>","DOI":"10.1126\/scitranslmed.abf3136","type":"journal-article","created":{"date-parts":[[2022,6,8]],"date-time":"2022-06-08T13:56:36Z","timestamp":1654696596000},"source":"Crossref","is-referenced-by-count":46,"title":["Gene therapy targeting protein trafficking regulator MOG1 in mouse models of Brugada syndrome, arrhythmias, and mild cardiomyopathy"],"prefix":"10.1126","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8496-8814","authenticated-orcid":true,"given":"Gang","family":"Yu","sequence":"first","affiliation":[{"name":"Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA."},{"name":"Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan 430074, P. 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R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4619-0543","authenticated-orcid":true,"given":"Zhijie","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA."},{"name":"Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan 430074, P. R. China."},{"name":"Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH 44195, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0592-9102","authenticated-orcid":true,"given":"Hyosuk","family":"Cho","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA."},{"name":"Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9933-3854","authenticated-orcid":true,"given":"Brent A.","family":"French","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering, University of Virginia Health System, Charlottesville, VA 22903, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3984-3788","authenticated-orcid":true,"given":"Sathyamangla V.","family":"Naga Prasad","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA."},{"name":"Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH 44195, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6565-9805","authenticated-orcid":true,"given":"Qiuyun","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA."},{"name":"Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH 44195, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2235-6572","authenticated-orcid":true,"given":"Qing K.","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA."},{"name":"Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan 430074, P. 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