{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T13:50:22Z","timestamp":1790776222910,"version":"4.1.0"},"reference-count":50,"publisher":"American Society for Clinical Investigation","issue":"6","funder":[{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"crossref","award":["T32AR056993,R01AR055686"],"award-info":[{"award-number":["T32AR056993,R01AR055686"]}],"id":[{"id":"10.13039\/100000069","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development","award":["U54HD090257"],"award-info":[{"award-number":["U54HD090257"]}]},{"DOI":"10.13039\/100005202","name":"Muscular Dystrophy Association","doi-asserted-by":"crossref","award":["MDA295203,MDA480160,MDA477331"],"award-info":[{"award-number":["MDA295203,MDA480160,MDA477331"]}],"id":[{"id":"10.13039\/100005202","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,3,26]]},"abstract":"<jats:p>\n                    Duchenne muscular dystrophy (DMD) is a chronic muscle disease characterized by poor myogenesis and replacement of muscle by extracellular matrix. Despite the shared genetic basis, severity of these deficits varies among patients. One source of these variations is the genetic modifier that leads to increased TGF-\u03b2 activity. While anti\u2013TGF-\u03b2 therapies are being developed to target muscle fibrosis, their effect on the myogenic deficit is underexplored. Our analysis of in vivo myogenesis in mild (C57BL\/10ScSn-\n                    <jats:italic>mdx<\/jats:italic>\n                    \/J and C57BL\/6J-\n                    <jats:italic>mdx<\/jats:italic>\n                    <jats:italic>\u0394<\/jats:italic>\n                    <jats:italic>52<\/jats:italic>\n                    ) and severe DBA\/2J-\n                    <jats:italic>mdx<\/jats:italic>\n                    (D2-\n                    <jats:italic>mdx<\/jats:italic>\n                    ) dystrophic models reveals no defects in developmental myogenesis in these mice. However, muscle damage at the onset of disease pathology, or by experimental injury, drives up TGF-\u03b2 activity in the severe, but not in the mild, dystrophic models. Increased TGF-\u03b2 activity is accompanied by increased accumulation of fibroadipogenic progenitors (FAPs) leading to fibro-calcification of muscle, together with failure of regenerative myogenesis. Inhibition of TGF-\u03b2 signaling reduces muscle degeneration by blocking FAP accumulation without rescuing regenerative myogenesis. These findings provide in vivo evidence of early-stage deficit in regenerative myogenesis in D2-\n                    <jats:italic>mdx<\/jats:italic>\n                    mice and implicates TGF-\u03b2 as a major component of a pathogenic positive feedback loop in this model, identifying this feedback loop as a therapeutic target.\n                  <\/jats:p>","DOI":"10.1172\/jci.insight.135703","type":"journal-article","created":{"date-parts":[[2020,3,25]],"date-time":"2020-03-25T11:01:26Z","timestamp":1585134086000},"source":"Crossref","is-referenced-by-count":150,"title":["TGF-\u03b2\u2013driven muscle degeneration and failed regeneration underlie disease onset in a DMD mouse model"],"prefix":"10.1172","volume":"5","author":[{"given":"Davi A.G.","family":"M\u00e1zala","sequence":"first","affiliation":[{"name":"Center for Genetic Medicine Research, Children\u2019s Research Institute, Children\u2019s National Hospital, Washington, DC, 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