{"entity": "researcher", "timestamp": "2026-08-13T19:10:07.648Z", "family": "H\u00e4gerstrand", "given": "Daniel", "initials": "D", "orcid": "0000-0001-7270-0776", "affiliations": ["Department of Oncology-Pathology, Karolinska Institutet, BioClinicum, Solna, Sweden. daniel.hagerstrand@ki.se.", "Department of Molecular Medicine and Surgery, Karolinska Institutet, BioClinicum, Solna, Sweden. daniel.hagerstrand@ki.se."], "links": {"self": {"href": "https://publications.scilifelab.se/researcher/35a683cea1874ac290d91c325a648be8.json"}, "display": {"href": "https://publications.scilifelab.se/researcher/35a683cea1874ac290d91c325a648be8"}}, "publications": [{"entity": "publication", "iuid": "0b48959ee84c4ee890a0e427e268d9c6", "links": {"self": {"href": "https://publications.scilifelab.se/publication/0b48959ee84c4ee890a0e427e268d9c6.json"}, "display": {"href": "https://publications.scilifelab.se/publication/0b48959ee84c4ee890a0e427e268d9c6"}}, "title": "Novel activating SNRNP70-ALK fusion in congenital infant-type hemispheric glioma displays clinical response to lorlatinib: a case-report", "authors": [{"family": "Arthur", "given": "Cecilia", "initials": "C", "orcid": "0000-0002-0645-6530", "researcher": {"href": "https://publications.scilifelab.se/researcher/7b07104d934d413a9c9546e7e9933051.json"}}, {"family": "Georgantzi", "given": "Kleopatra", "initials": "K"}, {"family": "de St\u00e5hl", "given": "Teresita D\u00edaz", "initials": "TD"}, {"family": "Guan", "given": "Jikui", "initials": "J", "orcid": "0000-0003-1723-0307", "researcher": {"href": "https://publications.scilifelab.se/researcher/a39044157aa7475485fb489a003b63d1.json"}}, {"family": "Oder", "given": "Blaz", "initials": "B", "orcid": "0000-0001-7984-3104", "researcher": {"href": "https://publications.scilifelab.se/researcher/9851f9fc65fc44aea55d0c1567be7887.json"}}, {"family": "Jylh\u00e4", "given": "Cecilia", "initials": "C"}, {"family": "Illies", "given": "Christopher", "initials": "C"}, {"family": "Sandgren", "given": "Johanna", "initials": "J", "orcid": "0000-0001-6776-2649", "researcher": {"href": "https://publications.scilifelab.se/researcher/1d5b6b16fdbe470f83de8748227f8987.json"}}, {"family": "Svoboda", "given": "Jan", "initials": "J"}, {"family": "Eisfeldt", "given": "Jesper", "initials": "J", "orcid": "0000-0003-3716-4917", "researcher": {"href": "https://publications.scilifelab.se/researcher/32a701ee07674785b48b047665e18ee6.json"}}, {"family": "Barbany", "given": "Gisela", "initials": "G", "orcid": "0000-0003-3185-2962", "researcher": {"href": "https://publications.scilifelab.se/researcher/13fda0d702d543f981898ebd53849817.json"}}, {"family": "Rosenquist", "given": "Richard", "initials": "R"}, {"family": "Sandvik", "given": "Ulrika", "initials": "U", "orcid": "0000-0002-9273-2158", "researcher": {"href": "https://publications.scilifelab.se/researcher/72b8c0bf76054dc8ba15fa80fa78918e.json"}}, {"family": "H\u00e4gerstrand", "given": "Daniel", "initials": "D", "orcid": "0000-0001-7270-0776", "researcher": {"href": "https://publications.scilifelab.se/researcher/35a683cea1874ac290d91c325a648be8.json"}}, {"family": "Hallberg", "given": "Bengt", "initials": "B"}, {"family": "Palmer", "given": "Ruth", "initials": "R", "orcid": "0000-0002-2735-8470", "researcher": {"href": "https://publications.scilifelab.se/researcher/808281ecc2634b66a274895e58a122bd.json"}}, {"family": "Tham", "given": "Emma", "initials": "E", "orcid": "0000-0001-6079-164X", "researcher": {"href": "https://publications.scilifelab.se/researcher/6689dd9aff584082a57398141a538111.json"}}], "type": "journal-article", "published": "2026-02-26", "journal": {"title": "NPJ Precis Oncol", "issn": "2397-768X", "volume": "10", "issue": "1", "issn-l": null}, "abstract": "We report a child with an antenatally detected brain tumor that progressed over three years' time despite surgery, chemo- and proton therapy. Retrospective whole-genome and transcriptome sequencing with methylation analysis of primary tumor tissue led to the molecular diagnosis infant-type hemispheric glioma, and identified a novel SNRNP70::ALK fusion, providing a therapeutic target for compassionate-use precision treatment with the ALK tyrosine kinase inhibitor lorlatinib. Functional studies confirmed the fusion protein to be expressed and active in the patient's tumor. After two years of therapy, the child has sustained partial tumor regression on MRI and no new neurological symptoms. We conclude that comprehensive multi-omics analyses are required for correct molecular diagnosis in childhood CNS tumors and can radically impact patient outcome by identifying molecular targets for precision treatment.", "doi": "10.1038/s41698-026-01336-x", "pmid": "41748687", "labels": {"National Genomics Infrastructure": "Service", "NGI Stockholm (Genomics Production)": "Service", "NGI Short read": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC12996540"}, {"db": "pii", "key": "10.1038/s41698-026-01336-x"}], "notes": [], "created": "2026-03-23T15:20:36.846Z", "modified": "2026-03-24T09:13:14.286Z"}, {"entity": "publication", "iuid": "b0aa84ad1a984c4d8b3eb1996eddfbe1", "links": {"self": {"href": "https://publications.scilifelab.se/publication/b0aa84ad1a984c4d8b3eb1996eddfbe1.json"}, "display": {"href": "https://publications.scilifelab.se/publication/b0aa84ad1a984c4d8b3eb1996eddfbe1"}}, "title": "Disease-specific U1 spliceosomal RNA mutations in mature B-cell neoplasms.", "authors": 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"Baumann", "given": "Tycho", "initials": "T"}, {"family": "Kulis", "given": "Marta", "initials": "M"}, {"family": "L\u00f3pez-Oreja", "given": "Irene", "initials": "I"}, {"family": "Cossio", "given": "Manuel", "initials": "M"}, {"family": "Lu", "given": "Junyan", "initials": "J", "orcid": "0000-0002-9211-0746", "researcher": {"href": "https://publications.scilifelab.se/researcher/08813991edd84a809d5a3e0e0bfaaa2e.json"}}, {"family": "Ljungstr\u00f6m", "given": "Viktor", "initials": "V"}, {"family": "Young", "given": "Emma", "initials": "E"}, {"family": "Plevova", "given": "Karla", "initials": "K", "orcid": "0000-0002-6148-8877", "researcher": {"href": "https://publications.scilifelab.se/researcher/2a6c579cb91f4096a7f8a9143262ce9b.json"}}, {"family": "Knisbacher", "given": "Binyamin A", "initials": "BA"}, {"family": "Lin", "given": "Ziao", "initials": "Z"}, {"family": "Hahn", "given": "Cynthia K", "initials": "CK"}, {"family": "Bousquets", "given": "Pablo", "initials": "P", "orcid": "0000-0002-2969-008X", "researcher": {"href": "https://publications.scilifelab.se/researcher/5e3865ff15a94e8abfc95c039825adac.json"}}, {"family": "Alcoceba", "given": "Miguel", "initials": "M", "orcid": "0000-0002-3819-4846", "researcher": {"href": "https://publications.scilifelab.se/researcher/fb06b84631cf4a259476737674499d1c.json"}}, {"family": "Gonz\u00e1lez", "given": "Marcos", "initials": "M"}, {"family": "Colado", "given": "Enrique", "initials": "E", "orcid": "0000-0001-8675-8207", "researcher": {"href": "https://publications.scilifelab.se/researcher/7f9a05ff8f434fbe81d1227335f431ae.json"}}, {"family": "Payer", "given": "\u00c1ngel R", "initials": "\u00c1R"}, {"family": "Aymerich", "given": "Marta", "initials": "M"}, {"family": "Terol", "given": "Mar\u00eda J", "initials": "MJ"}, {"family": "Rivas-Delgado", "given": "Alfredo", "initials": "A"}, {"family": "Enjuanes", "given": "Anna", "initials": "A"}, {"family": "Ruiz-Gasp\u00e0", "given": "S\u00edlvia", "initials": "S"}, {"family": "Chatzikonstantinou", "given": "Thomas", "initials": "T", "orcid": "0000-0003-4105-1253", "researcher": {"href": "https://publications.scilifelab.se/researcher/428007841de74249a101c9cc5182cd5e.json"}}, {"family": "H\u00e4gerstrand", "given": "Daniel", "initials": "D", "orcid": "0000-0001-7270-0776", "researcher": {"href": "https://publications.scilifelab.se/researcher/35a683cea1874ac290d91c325a648be8.json"}}, {"family": "Jylh\u00e4", "given": "Cecilia", "initials": "C"}, {"family": "Skaftason", "given": "Aron", "initials": "A"}, {"family": "Mansouri", "given": "Larry", "initials": "L"}, {"family": "Stranska", "given": "Kamila", "initials": "K", "orcid": "0000-0001-7678-1163", "researcher": {"href": "https://publications.scilifelab.se/researcher/130a65c3d64a4c57bbd619d7dc033b45.json"}}, {"family": "Doubek", "given": "Michael", "initials": "M", "orcid": "0000-0002-1269-6282", "researcher": {"href": "https://publications.scilifelab.se/researcher/7b574229235d455890fd703d2c722a17.json"}}, {"family": "van Gastel-Mol", "given": "Ellen J", "initials": "EJ"}, {"family": "Davis", "given": "Zadie", "initials": "Z"}, {"family": "Walewska", "given": "Renata", "initials": "R"}, {"family": "Scarf\u00f2", "given": "Lydia", "initials": "L", "orcid": "0000-0002-0844-0989", "researcher": {"href": "https://publications.scilifelab.se/researcher/47c4c336efb24d86b41c872d03836c78.json"}}, {"family": "Trentin", "given": "Livio", "initials": "L", "orcid": "0000-0003-1222-6149", "researcher": {"href": "https://publications.scilifelab.se/researcher/005d6d4e9e294ab7a1d7448c9aae45da.json"}}, {"family": "Visentin", "given": "Andrea", "initials": "A", "orcid": "0000-0003-0271-7200", "researcher": {"href": "https://publications.scilifelab.se/researcher/5f11f2e170b04d83a4d0f0ee3fbffdec.json"}}, {"family": "Parikh", "given": "Sameer A", "initials": "SA", "orcid": "0000-0002-3221-7314", "researcher": {"href": "https://publications.scilifelab.se/researcher/88e9511c65bb4c069a0fbeb9d1f46872.json"}}, {"family": "Rabe", "given": "Kari G", "initials": "KG", "orcid": "0000-0002-7313-1875", "researcher": {"href": "https://publications.scilifelab.se/researcher/107eb83790e54331b7069c5eda2e2303.json"}}, {"family": "Moia", "given": "Riccardo", "initials": "R", "orcid": "0000-0001-7393-1138", "researcher": {"href": "https://publications.scilifelab.se/researcher/68e9d84703624f578568c1a2775f3442.json"}}, {"family": "Armand", "given": "Marine", "initials": "M", "orcid": "0000-0001-8906-3128", "researcher": {"href": "https://publications.scilifelab.se/researcher/8d2e8c325db8415cb723a9718d49ae78.json"}}, {"family": "Rossi", "given": "Davide", "initials": "D"}, {"family": "Davi", "given": "Frederic", "initials": "F"}, {"family": "Gaidano", "given": "Gianluca", "initials": "G", "orcid": "0000-0002-4681-0151", "researcher": {"href": "https://publications.scilifelab.se/researcher/b9af4cedf69e47a5a4ecf0da0ed88c8e.json"}}, {"family": "Kay", "given": "Neil E", "initials": "NE", "orcid": "0000-0002-5951-5055", "researcher": {"href": "https://publications.scilifelab.se/researcher/ef074d0fdb0b4070b5216be063317bf8.json"}}, {"family": "Shanafelt", "given": "Tait D", "initials": "TD"}, {"family": "Ghia", "given": "Paolo", "initials": "P", "orcid": "0000-0003-3750-7342", "researcher": {"href": "https://publications.scilifelab.se/researcher/46f24783739d44c7b73a1be28c344a35.json"}}, {"family": "Oscier", "given": "David", "initials": "D"}, {"family": "Langerak", "given": "Anton W", "initials": "AW", "orcid": "0000-0002-2078-3220", "researcher": {"href": "https://publications.scilifelab.se/researcher/769a5b06013b43d6af8d3e13804cd50c.json"}}, {"family": "Be\u00e0", "given": "S\u00edlvia", "initials": "S", "orcid": "0000-0001-7192-2385", "researcher": {"href": "https://publications.scilifelab.se/researcher/49c087ad28194469892e86a69bdd4bab.json"}}, {"family": "L\u00f3pez-Guillermo", "given": "Armando", "initials": "A"}, {"family": "Neuberg", "given": "Donna", "initials": "D", "orcid": "0000-0003-2566-3145", "researcher": {"href": "https://publications.scilifelab.se/researcher/e2f9cbb622f040bebdfcb68657035be1.json"}}, {"family": "Wu", "given": "Catherine J", "initials": "CJ", "orcid": "0000-0002-3348-5054", "researcher": {"href": "https://publications.scilifelab.se/researcher/049091c641354ab2855757db72404195.json"}}, {"family": "Getz", "given": "Gad", "initials": "G", "orcid": "0000-0002-0936-0753", "researcher": {"href": "https://publications.scilifelab.se/researcher/974b292190aa40c4a3b0c1d7ab735376.json"}}, {"family": "Pospisilova", "given": "Sarka", "initials": "S", "orcid": "0000-0001-7136-2680", "researcher": {"href": "https://publications.scilifelab.se/researcher/241cf7f1344c4016b40dfcf439c0b43d.json"}}, {"family": "Stamatopoulos", "given": "Kostas", "initials": "K", "orcid": "0000-0001-8529-640X", "researcher": {"href": "https://publications.scilifelab.se/researcher/772756566c154559b2c70c8f0f44d1ad.json"}}, {"family": "Rosenquist", "given": "Richard", "initials": "R", "orcid": "0000-0002-0211-8788", "researcher": {"href": "https://publications.scilifelab.se/researcher/b570128e641140fb964ae3241414f510.json"}}, {"family": "Huber", "given": "Wolfgang", "initials": "W"}, {"family": "Zenz", "given": "Thorsten", "initials": "T", "orcid": "0000-0001-7890-9845", "researcher": {"href": "https://publications.scilifelab.se/researcher/8f6b107b1ec94de7bbc260f92f2dcc9f.json"}}, {"family": "Colomer", "given": "Dolors", "initials": "D", "orcid": "0000-0001-7486-8484", "researcher": {"href": "https://publications.scilifelab.se/researcher/0747c24c7c744799b7f0e73147dbbd05.json"}}, {"family": "Mart\u00edn-Subero", "given": "Jos\u00e9 I", "initials": "JI", "orcid": "0000-0001-8809-5195", "researcher": {"href": "https://publications.scilifelab.se/researcher/06ccbd6b7051490fb2764ce9da7a418e.json"}}, {"family": "Delgado", "given": "Julio", "initials": "J", "orcid": "0000-0002-5157-4376", "researcher": {"href": "https://publications.scilifelab.se/researcher/def9787862d247299e08c4cdbfb6a993.json"}}, {"family": "Morin", "given": "Ryan D", "initials": "RD", "orcid": "0000-0003-2932-7800", "researcher": {"href": "https://publications.scilifelab.se/researcher/c1d13b9d68534df3a8a271742b55b240.json"}}, {"family": "Stein", "given": "Lincoln D", "initials": "LD"}, {"family": "Puente", "given": "Xose S", "initials": "XS", "orcid": "0000-0001-9525-1483", "researcher": {"href": "https://publications.scilifelab.se/researcher/3c757bd329184ea2a2aa9183802fefb1.json"}}, {"family": "Campo", "given": "El\u00edas", "initials": "E", "orcid": "0000-0001-9850-9793", "researcher": {"href": "https://publications.scilifelab.se/researcher/5642afaa4ed648dfabe66194e42bc01b.json"}}], "type": "journal article", "published": "2025-09-00", "journal": {"title": "Leukemia", "issn": "1476-5551", "volume": "39", "issue": "9", "pages": "2076-2086", "issn-l": "0887-6924"}, "abstract": "Recurrent mutations in the third base of U1 spliceosomal RNA responsible for marked splicing and expression abnormalities have been described in chronic lymphocytic leukemia (CLL) and some solid tumors. However, the clinical significance of these mutations in large and independent CLL cohorts as well as their presence in other B-cell neoplasms is unknown. Here we characterized U1 mutations in 1670 CLL and 363 mature B-cell lymphomas. We confirmed that the g.3A>C U1 mutation is found in 3.5% of CLL, which conferred rapid disease progression independently of the main biological and clinical prognostic markers of the disease. Additionally, a recurrent g.9C>T mutation was found in 1.5% of CLL causing downstream splicing alterations and associated with adverse prognosis. We also identified a g.4C>T mutation in 10% of diffuse large B-cell lymphomas of the germinal center subtype and a g.7A>G mutation in 30% of EBV-negative Burkitt lymphomas, both of which altered the splicing pattern of multiple genes. This study reveals novel, recurrent, and tumor-specific U1 mutations in mature B-cell neoplasms with biological and prognostic implications, thus establishing U1 as a novel pan-B-cell malignancy driver gene.", "doi": "10.1038/s41375-025-02667-7", "pmid": "40588565", "labels": {"NGI Short read": "Service", "NGI Uppsala (SNP&SEQ Technology Platform)": "Service", "National Genomics Infrastructure": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC12380619"}, {"db": "pii", "key": "10.1038/s41375-025-02667-7"}], "notes": [], "created": "2025-09-08T07:17:22.103Z", "modified": "2025-09-08T07:17:23.018Z"}, {"entity": "publication", "iuid": "ff82f6f4bfb34c93a66ea6b5c6e6a9f0", "links": {"self": {"href": "https://publications.scilifelab.se/publication/ff82f6f4bfb34c93a66ea6b5c6e6a9f0.json"}, "display": {"href": "https://publications.scilifelab.se/publication/ff82f6f4bfb34c93a66ea6b5c6e6a9f0"}}, "title": "The non-canonical BAF chromatin remodeling complex is a novel target of spliceosome dysregulation in SF3B1-mutated chronic lymphocytic leukemia.", "authors": [{"family": "H\u00e4gerstrand", "given": "Daniel", "initials": "D", "orcid": "0000-0001-7270-0776", "researcher": {"href": "https://publications.scilifelab.se/researcher/35a683cea1874ac290d91c325a648be8.json"}}, {"family": "Oder", "given": "Bla\u017e", "initials": "B", "orcid": "0000-0001-7984-3104", "researcher": {"href": "https://publications.scilifelab.se/researcher/9851f9fc65fc44aea55d0c1567be7887.json"}}, {"family": "Cortese", "given": "Diego", "initials": "D"}, {"family": "Qu", "given": "Ying", "initials": "Y"}, {"family": "Binzer-Panchal", "given": "Amrei", "initials": "A", "orcid": "0000-0002-0472-0609", "researcher": {"href": "https://publications.scilifelab.se/researcher/9b6fe18ad8f8495a97d9322cac3201da.json"}}, {"family": "\u00d6sterholm", "given": "Cecilia", "initials": "C"}, {"family": "Del Peso Santos", "given": "Teresa", "initials": "T"}, {"family": "Rabbani", "given": "Leily", "initials": "L"}, {"family": "Asl", "given": "Hassan Foroughi", "initials": "HF"}, {"family": "Skaftason", "given": "Aron", "initials": "A"}, {"family": "Ljungstr\u00f6m", "given": "Viktor", "initials": "V"}, {"family": "Lundholm", "given": "August", "initials": "A"}, {"family": "Koutroumani", "given": "Maria", "initials": "M"}, {"family": "Haider", "given": "Zahra", "initials": "Z"}, {"family": "Jylh\u00e4", "given": "Cecilia", "initials": "C"}, {"family": "Mollstedt", "given": "John", "initials": "J"}, {"family": "Mansouri", "given": "Larry", "initials": "L"}, {"family": "Plevova", "given": "Karla", "initials": "K"}, {"family": "Agathangelidis", "given": "Andreas", "initials": "A", "orcid": "0000-0002-8467-7945", "researcher": {"href": "https://publications.scilifelab.se/researcher/79eb64984ac1494094f8c632b18bc793.json"}}, {"family": "Scarf\u00f2", "given": "Lydia", "initials": "L", "orcid": "0000-0002-0844-0989", "researcher": {"href": "https://publications.scilifelab.se/researcher/47c4c336efb24d86b41c872d03836c78.json"}}, {"family": "Armand", "given": "Marine", "initials": "M", "orcid": "0000-0001-8906-3128", "researcher": {"href": "https://publications.scilifelab.se/researcher/8d2e8c325db8415cb723a9718d49ae78.json"}}, {"family": "Muggen", "given": "Alice F", "initials": "AF"}, {"family": "Kay", "given": "Neil E", "initials": "NE", "orcid": "0000-0002-5951-5055", "researcher": {"href": "https://publications.scilifelab.se/researcher/ef074d0fdb0b4070b5216be063317bf8.json"}}, {"family": "Shanafelt", "given": "Tait", "initials": "T"}, {"family": "Rossi", "given": "Davide", "initials": "D"}, {"family": "Orre", "given": "Lukas M", "initials": "LM", "orcid": "0000-0002-0384-1003", "researcher": {"href": "https://publications.scilifelab.se/researcher/7b4e49a93b0143db88059c4d1e9fdc59.json"}}, {"family": "Pospisilova", "given": "Sarka", "initials": "S", "orcid": "0000-0001-7136-2680", "researcher": {"href": "https://publications.scilifelab.se/researcher/241cf7f1344c4016b40dfcf439c0b43d.json"}}, {"family": "Barylyuk", "given": "Konstantin", "initials": "K", "orcid": "0000-0002-3580-0345", "researcher": {"href": "https://publications.scilifelab.se/researcher/f5db39fce380438e82060c586e230ee6.json"}}, {"family": "Davi", "given": "Frederic", "initials": "F"}, {"family": "Vesterlund", "given": "Mattias", "initials": "M", "orcid": "0000-0001-9471-6592", "researcher": {"href": "https://publications.scilifelab.se/researcher/0942e438993b494db2a3db914852c808.json"}}, {"family": "Langerak", "given": "Anton W", "initials": "AW", "orcid": "0000-0002-2078-3220", "researcher": {"href": "https://publications.scilifelab.se/researcher/769a5b06013b43d6af8d3e13804cd50c.json"}}, {"family": "Lehti\u00f6", "given": "Janne", "initials": "J", "orcid": "0000-0002-8100-9562", "researcher": {"href": "https://publications.scilifelab.se/researcher/8406a97bac744a59b1bc951978994581.json"}}, {"family": "Ghia", "given": "Paolo", "initials": "P", "orcid": "0000-0003-3750-7342", "researcher": {"href": "https://publications.scilifelab.se/researcher/46f24783739d44c7b73a1be28c344a35.json"}}, {"family": "Stamatopoulos", "given": "Kostas", "initials": "K", "orcid": "0000-0001-8529-640X", "researcher": {"href": "https://publications.scilifelab.se/researcher/772756566c154559b2c70c8f0f44d1ad.json"}}, {"family": "Sutton", "given": "Lesley-Ann", "initials": "LA"}, {"family": "Rosenquist", "given": "Richard", "initials": "R", "orcid": "0000-0002-0211-8788", "researcher": {"href": "https://publications.scilifelab.se/researcher/b570128e641140fb964ae3241414f510.json"}}], "type": "journal article", "published": "2024-11-00", "journal": {"title": "Leukemia", "issn": "1476-5551", "volume": "38", "issue": "11", "pages": "2429-2442", "issn-l": "0887-6924"}, "abstract": "SF3B1 mutations are recurrent in chronic lymphocytic leukemia (CLL), particularly enriched in clinically aggressive stereotyped subset #2. To investigate their impact, we conducted RNA-sequencing of 18 SF3B1MUT and 17 SF3B1WT subset #2 cases and identified 80 significant alternative splicing events (ASEs). Notable ASEs concerned exon inclusion in the non-canonical BAF (ncBAF) chromatin remodeling complex subunit, BRD9, and splice variants in eight additional ncBAF complex interactors. Long-read RNA-sequencing confirmed the presence of splice variants, and extended analysis of 139 CLL cases corroborated their association with SF3B1 mutations. Overexpression of SF3B1K700E induced exon inclusion in BRD9, resulting in a novel splice isoform with an alternative C-terminus. Protein interactome analysis of the BRD9 splice isoform revealed augmented ncBAF complex interaction, while exhibiting decreased binding of auxiliary proteins, including SPEN, BRCA2, and CHD9. Additionally, integrative multi-omics analysis identified a ncBAF complex-bound gene quartet on chromosome 1 with higher expression levels and more accessible chromatin in SF3B1MUT CLL. Finally, Cancer Dependency Map analysis and BRD9 inhibition displayed BRD9 dependency and sensitivity in cell lines and primary CLL cells. In conclusion, spliceosome dysregulation caused by SF3B1 mutations leads to multiple ASEs and an altered ncBAF complex interactome, highlighting a novel pathobiological mechanism in SF3B1MUT CLL.", "doi": "10.1038/s41375-024-02379-4", "pmid": "39261602", "labels": {"NGI Uppsala (SNP&SEQ Technology Platform)": "Service", "National Genomics Infrastructure": "Service", "NGI Short read": "Service", "Bioinformatics Support for Computational Resources": "Service", "Global Proteomics and Proteogenomics": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC11518989"}, {"db": "pii", "key": "10.1038/s41375-024-02379-4"}], "notes": [], "created": "2024-11-12T10:55:28.718Z", "modified": "2025-02-28T14:13:56.146Z"}, {"entity": "publication", "iuid": "028827c58bea4f14bbedb8ef627db6fc", "links": {"self": {"href": "https://publications.scilifelab.se/publication/028827c58bea4f14bbedb8ef627db6fc.json"}, "display": {"href": "https://publications.scilifelab.se/publication/028827c58bea4f14bbedb8ef627db6fc"}}, "title": "SFRP2 induces a mesenchymal subtype transition by suppression of SOX2 in glioblastoma.", "authors": [{"family": "Guo", "given": "Min", "initials": "M", "orcid": "0000-0002-2291-1230", "researcher": {"href": "https://publications.scilifelab.se/researcher/b31e97bd7c2b4cb49b173189d515c2dc.json"}}, {"family": "Goudarzi", "given": "Kaveh M", "initials": "KM"}, {"family": "Abedi", "given": "Shiva", "initials": "S"}, {"family": "Pieber", "given": "Melanie", "initials": "M"}, {"family": "Sj\u00f6berg", "given": "Elin", "initials": "E", "orcid": "0000-0002-8799-4874", "researcher": {"href": "https://publications.scilifelab.se/researcher/fd51131ccec248aea0bcf013a7da3296.json"}}, {"family": "Behnan", "given": "Jinan", "initials": "J", "orcid": "0000-0001-5780-0971", "researcher": {"href": "https://publications.scilifelab.se/researcher/4fbacfae35ad4364b5058e432aa6e6df.json"}}, {"family": "Zhang", "given": "Xing-Mei", "initials": "XM"}, {"family": "Harris", "given": "Robert A", "initials": "RA"}, {"family": "Bartek", "given": "Jiri", "initials": "J"}, {"family": "Lindstr\u00f6m", "given": "Mikael S", "initials": "MS", "orcid": "0000-0003-1148-8497", "researcher": {"href": "https://publications.scilifelab.se/researcher/5aa942fbfbee4257a129b3e7888f5b6d.json"}}, {"family": "Nist\u00e9r", "given": "Monica", "initials": "M", "orcid": "0000-0002-1261-3790", "researcher": {"href": "https://publications.scilifelab.se/researcher/e1dc80e61f574293a190f2f3ef464988.json"}}, {"family": "H\u00e4gerstrand", "given": "Daniel", "initials": "D", "orcid": "0000-0001-7270-0776", "researcher": {"href": "https://publications.scilifelab.se/researcher/35a683cea1874ac290d91c325a648be8.json"}}], "type": "journal article", "published": "2021-08-00", "journal": {"title": "Oncogene", "issn": "1476-5594", "volume": "40", "issue": "32", "pages": "5066-5080", "issn-l": "0950-9232"}, "abstract": "Intratumoral heterogeneity is a characteristic of glioblastomas that contain an intermixture of cell populations displaying different glioblastoma subtype gene expression signatures. Proportions of these populations change during tumor evolution, but the occurrence and regulation of glioblastoma subtype transition is not well described. To identify regulators of glioblastoma subtypes we utilized a combination of in vitro experiments and in silico analyses, using experimentally generated as well as publicly available data. Through this combined approach SOX2 was identified to confer a proneural glioblastoma subtype gene expression signature. SFRP2 was subsequently identified as a SOX2-antagonist, able to induce a mesenchymal glioblastoma subtype signature. A subset of patient glioblastoma samples with high SFRP2 and low SOX2 expression was particularly enriched with mesenchymal subtype samples. Phenotypically, SFRP2 decreased tumor sphere formation, stemness as assessed by limiting dilution assay, and overall cell proliferation but increased cell motility, whereas SOX2 induced the opposite effects. Furthermore, an SFRP2/non-canonical-WNT/KLF4/PDGFR/phospho-AKT/SOX2 signaling axis was found to be involved in the mesenchymal transition. Analysis of human tumor tissue spatial gene expression patterns showed distinct expression of SFRP2- and SOX2-correlated genes in vascular and cellular areas, respectively. Finally, conditioned media from SFRP2 overexpressing cells increased CD206 on macrophages. Together, these findings present SFRP2 as a SOX2-antagonist with the capacity to induce a mesenchymal subtype transition in glioma cells located in vascular tumor areas, highlighting its role in glioblastoma tumor evolution and intratumoral heterogeneity.", "doi": "10.1038/s41388-021-01825-2", "pmid": "34021259", "labels": {"National Genomics Infrastructure": "Service", "NGI Stockholm (Genomics Production)": "Service", "NGI Stockholm (Genomics Applications)": "Service", "Global Proteomics and Proteogenomics": "Service"}, "xrefs": [{"db": "pii", "key": "10.1038/s41388-021-01825-2"}, {"db": "pmc", "key": "PMC8363098"}], "notes": [], "created": "2021-10-01T09:01:02.317Z", "modified": "2022-03-29T11:45:30.466Z"}]}