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Here, we report the phenotype, neuropathology, and transcriptomics data (scRNA-seq and bulk RNA-seq) of a new\n                    <jats:italic>Lama2<\/jats:italic>\n                    knockout mouse (dy\n                    <jats:sup>H<\/jats:sup>\n                    \/dy\n                    <jats:sup>H<\/jats:sup>\n                    ) which was created based on the human\n                    <jats:italic>LAMA2<\/jats:italic>\n                    -MD mutation hotspot region using CRISPR-Cas9. The dy\n                    <jats:sup>H<\/jats:sup>\n                    \/dy\n                    <jats:sup>H<\/jats:sup>\n                    mice presented a severe phenotype with muscular dystrophy. Mouse brain scRNA-seq showed that\n                    <jats:italic>Lama2<\/jats:italic>\n                    gene was expressed predominantly and specifically in vascular and leptomeningeal fibroblasts and vascular smooth muscle cells, and weakly in astrocytes in wild-type mouse. Laminin \u03b12 expression on the cortical surface was observed with immunofluorescence. In dy\n                    <jats:sup>H<\/jats:sup>\n                    \/dy\n                    <jats:sup>H<\/jats:sup>\n                    ,\n                    <jats:italic>Lama2<\/jats:italic>\n                    expression was decreased in those cell types, which might be associated with the disruption of gliovascular basal lamina assembly. Additionally, transcriptomic investigation of muscles showed 2020 differentially expressed genes, mainly associated with the impaired muscle cytoskeleton and development. In summary, this study provided potentially useful information for understanding the molecular pathogenesis of\n                    <jats:italic>LAMA2<\/jats:italic>\n                    -MD.\n                  <\/jats:p>","DOI":"10.7554\/elife.94288","type":"journal-article","created":{"date-parts":[[2024,3,4]],"date-time":"2024-03-04T13:25:18Z","timestamp":1709558718000},"update-policy":"https:\/\/doi.org\/10.7554\/elife.94288","source":"Crossref","is-referenced-by-count":1,"title":["A novel mouse model for LAMA2-related muscular dystrophy with analysis of molecular pathogenesis and clinical phenotype"],"prefix":"10.7554","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1899-5988","authenticated-orcid":true,"given":"Dandan","family":"Tan","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02z1vqm45","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Pediatrics, Peking University First Hospital","place":["Beijing, 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