{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T18:39:40Z","timestamp":1792780780571,"version":"4.5.0"},"reference-count":92,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"43","funder":[{"DOI":"10.13039\/100000069","name":"National Institute of Arthritis and Musculoskeletal and Skin Diseases","doi-asserted-by":"publisher","award":["R01AR079174"],"award-info":[{"award-number":["R01AR079174"]}],"id":[{"id":"10.13039\/100000069","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Meijer Foundation"}],"content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2026,10,23]]},"abstract":"<jats:p>\n                    SMCHD1 is a chromatin architectural protein linked to heterochromatin repression. Loss of function mutations of SMCHD1 cause facioscapulohumeral muscular dystrophy type 2 (FSHD2) through activation of the\n                    <jats:italic toggle=\"yes\">DUX4<\/jats:italic>\n                    transcription factor gene. However, it is unknown how SMCHD1 may regulate transcription independently of DUX4. Here, we show that SMCHD1 safeguards enhancer organization within the three-dimensional (3D) genome in human myoblasts. Loss of SMCHD1 leads to widespread gains in chromatin accessibility, aberrant transcription, and selective remodeling of myogenic transcription factor MYOD1 occupancy. Integrative analyses of histone modifications, chromatin accessibility, Hi-C looping, and enhancer-gene modeling reveal that SMCHD1 loss rewires the landscape of clustered enhancers and promotes the emergence of new networks of enhancer elements, termed MYOD1 enhancer nexuses. These structures are marked by increased enhancer connectivity, increased local 3D chromatin interactions, and coordinated activation of genes likely relevant for FSHD pathology. Our findings identify SMCHD1 as a key architectural constraint that suppresses hyperactive enhancer networks, thereby preserving transcriptional homeostasis in myoblasts.\n                  <\/jats:p>","DOI":"10.1126\/sciadv.aeh7499","type":"journal-article","created":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T17:58:42Z","timestamp":1792778322000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":0,"title":["SMCHD1 loss rewires MYOD1 enhancer nexuses and chromatin accessibility landscapes in muscle cells"],"prefix":"10.1126","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5534-7576","authenticated-orcid":true,"given":"Zhijun","family":"Huang","sequence":"first","affiliation":[{"name":"Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, 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