{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,6]],"date-time":"2026-11-06T05:08:31Z","timestamp":1793941711460,"version":"4.8.0"},"reference-count":61,"publisher":"American Society of Hematology","issue":"17","license":[{"start":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T00:00:00Z","timestamp":1769385600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["ashpublications.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2026,4,23]]},"abstract":"<jats:sec>\n                    <jats:title>Abstract<\/jats:title>\n                    <jats:p>Oncogenic mutations of SF3B1 are common in myeloid cancers, chronic lymphocytic leukemia (CLL), and select solid tumors. Their mechanistic basis for promoting oncogenesis has been investigated in detail, with the stereotyped missplicing of messenger RNA (mRNA) protein coding sequences most intensively studied. These changes, in genes such as MAP3K7, BRD9, and ABCB7, typically lead to loss of function, thus contributing to cancer pathogenesis. Here, we systematically analyzed the impact of mutant SF3B1 on noncoding regions of mRNA transcripts across disease types, in both cell lines and primary patient specimens. This identified numerous novel and highly reproducible splicing alterations in such regions. Studies of a target gene, DCAF16, revealed multiple complex mutation-induced alterations in its 5\u2032 and 3\u2032 untranslated regions (UTRs). Remarkably, these were mechanistically associated with increased DCAF16 protein levels in SF3B1-mutant cells, representing, to our knowledge, the first time that oncogenic SF3B1 has been found to increase levels of a target protein in a gain-of-function manner. DCAF16 is a substrate recognition adapter for the DDB1\/CUL4 E3 ubiquitin ligase complex. Novel protein degrader small molecules that coopt DCAF16 to degrade BRD4 as a neosubstrate demonstrated preferential selectivity for SF3B1-mutant cancers and CLL primary patient specimens due to increased DCAF16 protein levels. In turn, this reveals the therapeutic relevance of mutant SF3B1 dysregulation of transcript UTRs and uncovers a novel strategy for the treatment of these important neoplasms.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1182\/blood.2025029972","type":"journal-article","created":{"date-parts":[[2026,1,26]],"date-time":"2026-01-26T16:54:53Z","timestamp":1769446493000},"page":"1941-1957","update-policy":"https:\/\/doi.org\/10.1182\/blood.2019cm0000","source":"Crossref","is-referenced-by-count":4,"title":["Oncogenic\n                    <i>SF3B1<\/i>\n                    mutations alter the splicing of mRNA noncoding regions to induce a novel therapeutic vulnerability"],"prefix":"10.1182","volume":"147","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5309-3720","authenticated-orcid":false,"given":"Michal","family":"Sekrecki","sequence":"first","affiliation":[{"name":"1Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2352-0979","authenticated-orcid":false,"given":"Agata","family":"Sekrecka","sequence":"additional","affiliation":[{"name":"1Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-4847-1411","authenticated-orcid":false,"given":"Rohan R.","family":"Lattupally","sequence":"additional","affiliation":[{"name":"1Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-0177-2623","authenticated-orcid":false,"given":"Kenny","family":"Le","sequence":"additional","affiliation":[{"name":"1Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-7011-8199","authenticated-orcid":false,"given":"Xiaokang","family":"Jin","sequence":"additional","affiliation":[{"name":"2Department of Chemistry, Northwestern University, Chicago, IL"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4781-3282","authenticated-orcid":false,"given":"Chen","family":"Mozes","sequence":"additional","affiliation":[{"name":"2Department of Chemistry, Northwestern University, Chicago, IL"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8593-4184","authenticated-orcid":false,"given":"Brendan G.","family":"Dwyer","sequence":"additional","affiliation":[{"name":"3Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhe","family":"Zhuang","sequence":"additional","affiliation":[{"name":"3Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-0022-2457","authenticated-orcid":false,"given":"Bryan A.","family":"Romero","sequence":"additional","affiliation":[{"name":"3Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1417-9200","authenticated-orcid":false,"given":"Jose M. B.","family":"Pineda","sequence":"additional","affiliation":[{"name":"1Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xunhong","family":"Cao","sequence":"additional","affiliation":[{"name":"1Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9995-5389","authenticated-orcid":false,"given":"Linh","family":"Nguyen","sequence":"additional","affiliation":[{"name":"4Department of Pathology, Stanford University School of Medicine, Stanford, CA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-9420-4591","authenticated-orcid":false,"given":"Vicky","family":"Chen","sequence":"additional","affiliation":[{"name":"5Graduate Program in Genetics, Stanford University School of Medicine, 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