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This gene is subjected to a tissue-specific form of genomic imprinting leading to the silencing of the paternal allele in neurons. Angelman syndrome can result from various (epi)genetic mechanisms, with paternal uniparental disomy of chromosome 15 (patUPD15) being one of the rarest and least studied due to the absence of suitable models. To address this gap, we generated three independent induced pluripotent stem cell (iPSC) lines from individuals with Angelman syndrome caused by patUPD15, alongside genetically matched unaffected familial controls. Peripheral blood mononuclear cells (PBMCs) were reprogrammed into iPSCs using a non-integrative Sendai virus-based approach expressing the Yamanaka factors. All iPSC lines underwent rigorous quality control, confirming stem cell identity, trilineage differentiation potential, and genetic and epigenetic integrity. This newly established iPSC toolkit provides a powerful platform to investigate the molecular underpinnings of Angelman syndrome caused by patUPD15, paving the way for future translational research and therapeutic development tailored for this understudied form of the disorder.<\/jats:p>","DOI":"10.1007\/s13577-025-01287-8","type":"journal-article","created":{"date-parts":[[2025,9,16]],"date-time":"2025-09-16T06:42:29Z","timestamp":1758004949000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A stem cell-based toolkit to model Angelman syndrome caused by paternal uniparental disomy of chromosome 15"],"prefix":"10.1007","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8536-6412","authenticated-orcid":false,"given":"Francisca","family":"Cazaux Mateus","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2913-3758","authenticated-orcid":false,"given":"Jo\u00e3o","family":"Cam\u00f5es dos Santos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5564-3490","authenticated-orcid":false,"given":"Maria","family":"Arez","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3963-1358","authenticated-orcid":false,"given":"Evguenia P.","family":"Bekman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9683-7942","authenticated-orcid":false,"given":"Sim\u00e3o T.","family":"da Rocha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,9,16]]},"reference":[{"issue":"11","key":"1287_CR1","doi-asserted-by":"publisher","first-page":"2154","DOI":"10.1111\/febs.15258","volume":"287","author":"C Maranga","year":"2020","unstructured":"Maranga C, Fernandes TG, Bekman E, da Rocha ST. Angelman syndrome: a journey through the brain. FEBS J. 2020;287(11):2154\u201375. https:\/\/doi.org\/10.1111\/febs.15258.","journal-title":"FEBS J"},{"issue":"1","key":"1287_CR2","doi-asserted-by":"publisher","first-page":"70","DOI":"10.1038\/ng0197-70","volume":"15","author":"T Kishino","year":"1997","unstructured":"Kishino T, Lalande M, Wagstaff J. UBE3A\/E6-AP mutations cause Angelman syndrome. Nat Genet. 1997;15(1):70\u20133. https:\/\/doi.org\/10.1038\/ng0197-70.","journal-title":"Nat Genet"},{"issue":"1","key":"1287_CR3","doi-asserted-by":"publisher","first-page":"74","DOI":"10.1038\/ng0197-74","volume":"15","author":"T Matsuura","year":"1997","unstructured":"Matsuura T, et al. De novo truncating mutations in E6-AP ubiquitin-protein ligase gene (UBE3A) in Angelman syndrome. 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