{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T08:22:33Z","timestamp":1740126153920,"version":"3.37.3"},"reference-count":32,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2024,7,15]],"date-time":"2024-07-15T00:00:00Z","timestamp":1721001600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82373500","82373459"],"award-info":[{"award-number":["82373500","82373459"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2024,10,17]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Lipid metabolism has essential roles in skin barrier formation and the regulation of skin inflammation. Lipid homeostasis regulates skin melanogenesis, although the underlying mechanism remains largely unknown. Sterol regulatory element binding protein 1 (SREBP-1) is a key transcription factor essential for cellular lipid metabolism. Loss-of-function variants in SREBF1 are responsible for autosomal-dominant ichthyosis follicularis, alopecia and photophobia syndrome, emphasizing the significance of lipid homeostasis in skin keratinization.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Objectives<\/jats:title>\n                  <jats:p>To identify the genetic basis of a new entity featuring diffuse skin hyperpigmentation with congenital cataracts, and to unravel the underlying mechanism for the pathogenesis of the SREBF1 variant.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Whole-exome sequencing was performed to identify underlying genetic variants. Quantitative polymerase chain reaction, Western blot and immunofluorescence staining were used to assess the expression and the subcellular localization of the SREBF1 variant. The transcriptional activity of mutant SREBP-1 was determined by a luciferase reporter assay. A transgenic zebrafish model was constructed.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Two unrelated patients presented with generalized skin hyperpigmentation with skin xerosis, congenital cataracts and extracutaneous symptoms. We identified a de novo nonsense variant c.1289C&amp;gt;A (p.Ser430*) in SREBF1 in both patients. The variant encoded a truncated protein that showed preferential nucleus localization, in contrast to wild-type SREBP-1 which \u2013 in sterol-sufficient conditions \u2013 is mainly localized in the cytoplasm. The luciferase reporter assay revealed that the p.Ser430* mutant exhibited enhanced transcriptional activity. Cultured patient primary melanocytes showed increased melanin synthesis vs. those from healthy controls. At 35\u2005days postfertilization, the p.Ser430* transgenic zebrafish model exhibited more black spots, along with upregulated expression of melanogenic genes.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>We demonstrated that a gain-of-function variant of SREBF1 causes a previously undescribed disorder characterized by generalized skin hyperpigmentation and congenital cataracts. Our study reveals the involvement of SREBP-1 in melanogenesis and lens development, and paves the way for the development of novel therapeutic targets for skin dyspigmentation or cataracts.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/bjd\/ljae291","type":"journal-article","created":{"date-parts":[[2024,7,12]],"date-time":"2024-07-12T20:53:06Z","timestamp":1720817586000},"page":"805-815","source":"Crossref","is-referenced-by-count":0,"title":["A gain-of-function variant in <i>SREBF1<\/i> causes generalized skin hyperpigmentation with congenital cataracts"],"prefix":"10.1093","volume":"191","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5414-1472","authenticated-orcid":false,"given":"Huijun","family":"Wang","sequence":"first","affiliation":[{"name":"Dermatology Hospital, Southern Medical University , Guangzhou ,","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuan","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Peking University First Hospital , Beijing ,","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jennifer A","family":"Bassetti","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Weill Cornell Medicine , New York, NY ,","place":["USA"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaoyang","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Beijing Children\u2019s Hospital, Capital Medical University, National Center for Children\u2019s Health , Beijing ,","place":["China"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vikash S","family":"Oza","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Pediatrics, The Ronald O. 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