Publication Date:
2016-01-02
Description:
Frame-disrupting mutations in the DMD gene, encoding dystrophin, compromise myofiber integrity and drive muscle deterioration in Duchenne muscular dystrophy (DMD). Removing one or more exons from the mutated transcript can produce an in-frame mRNA and a truncated, but still functional, protein. In this study, we developed and tested a direct gene-editing approach to induce exon deletion and recover dystrophin expression in the mdx mouse model of DMD. Delivery by adeno-associated virus (AAV) of clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 endonucleases coupled with paired guide RNAs flanking the mutated Dmd exon23 resulted in excision of intervening DNA and restored the Dmd reading frame in myofibers, cardiomyocytes, and muscle stem cells after local or systemic delivery. AAV-Dmd CRISPR treatment partially recovered muscle functional deficiencies and generated a pool of endogenously corrected myogenic precursors in mdx mouse muscle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tabebordbar, Mohammadsharif -- Zhu, Kexian -- Cheng, Jason K W -- Chew, Wei Leong -- Widrick, Jeffrey J -- Yan, Winston X -- Maesner, Claire -- Wu, Elizabeth Y -- Xiao, Ru -- Ran, F Ann -- Cong, Le -- Zhang, Feng -- Vandenberghe, Luk H -- Church, George M -- Wagers, Amy J -- 1DP2OD004345/OD/NIH HHS/ -- 5DP1-MH100706/DP/NCCDPHP CDC HHS/ -- 5PN2EY018244/EY/NEI NIH HHS/ -- 5R01DK097768-03/DK/NIDDK NIH HHS/ -- 5U01HL100402/HL/NHLBI NIH HHS/ -- P50 HG005550/HG/NHGRI NIH HHS/ -- T2GM007753/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2016 Jan 22;351(6271):407-11. doi: 10.1126/science.aad5177. Epub 2015 Dec 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Stem Cell and Regenerative Biology, Harvard University, and Harvard Stem Cell Institute, Cambridge, MA 02138, USA. Biological and Biomedical Sciences Program, Harvard Medical School, Boston, MA 02115, USA. ; Department of Stem Cell and Regenerative Biology, Harvard University, and Harvard Stem Cell Institute, Cambridge, MA 02138, USA. Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138, USA. ; Department of Stem Cell and Regenerative Biology, Harvard University, and Harvard Stem Cell Institute, Cambridge, MA 02138, USA. ; Biological and Biomedical Sciences Program, Harvard Medical School, Boston, MA 02115, USA. Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Division of Genetics and Program in Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA. ; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. McGovern Institute for Brain Research, Department of Brain and Cognitive Science, and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. ; Grousbeck Gene Therapy Center, Schepens Eye Research Institute, and Massachusetts Eye and Ear Infirmary, 20 Staniford Street, Boston, MA 02114, USA. ; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Department of Stem Cell and Regenerative Biology, Harvard University, and Harvard Stem Cell Institute, Cambridge, MA 02138, USA. amy_wagers@harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26721686" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
CRISPR-Cas Systems
;
Clustered Regularly Interspaced Short Palindromic Repeats
;
Dependovirus
;
Disease Models, Animal
;
Exons
;
Frameshift Mutation
;
Genetic Therapy/*methods
;
Mice
;
Mice, Inbred mdx
;
Muscle, Skeletal/metabolism
;
Muscular Dystrophy, Duchenne/genetics/*therapy
;
Myocardium/metabolism
;
RNA, Messenger/genetics
;
Satellite Cells, Skeletal Muscle/*metabolism
;
Sequence Deletion
;
Transduction, Genetic/*methods
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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