Home > Publications database > VGLL-fusions define a new class of intraparenchymal CNS schwannoma. > print |
001 | 296129 | ||
005 | 20250520141012.0 | ||
024 | 7 | _ | |a 10.1093/neuonc/noae269 |2 doi |
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100 | 1 | _ | |a Schmid, Simone |0 P:(DE-He78)6e4a8cc4eb35e694f95453ed8a927a83 |b 0 |u dkfz |
245 | _ | _ | |a VGLL-fusions define a new class of intraparenchymal CNS schwannoma. |
260 | _ | _ | |a Oxford |c 2025 |b Oxford Univ. Press |
336 | 7 | _ | |a article |2 DRIVER |
336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1747742970_3488 |2 PUB:(DE-HGF) |
336 | 7 | _ | |a ARTICLE |2 BibTeX |
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500 | _ | _ | |a 2025 May 15;27(4):1031-1045 |
520 | _ | _ | |a Intracerebral schwannomas are rare tumors resembling their peripheral nerve sheath counterparts but localized in the CNS. They are not classified as a separate tumor type in the 2021 WHO classification. This study aimed to compile and characterize these rare neoplasms morphologically and molecularly.We analyzed 20 tumor samples by histology, RNA Next-Generation Sequencing, DNA-methylation profiling, copy number analyses, and single nucleus RNA sequencing (snRNA-seq). Clinical data, including age, sex, and disease progression, were collected. MRI series were included when available.All cases with tissue available for histology review (n=13) were morphologically consistent with intracerebral schwannoma, but differed in their extent of GFAP staining. All (n=20) shared DNA-methylation profiles distinct from other CNS tumors, as well as from VGLL-altered peripheral nerve sheath tumors. Most cases (n=14/17) harbored fusions of either VGLL3 or VGLL1 (CHD7::VGLL3 (n=9/17) and EWSR1::VGLL1 (n=5/17)). In two cases the presence of a VGLL3 fusion was also confirmed by CNA analyses (n=2/17). MRI (n=4) showed well-defined, nodular tumors with strong, homogeneous enhancement and no diffusion restriction. Tumors were located throughout the neuroaxis [supratentorial (n=15), infratentorial (n=4), and spinal (n=1)]. snRNA-seq of a VGLL1-fused tumor indicated VGLL1 upregulation in 28.6% of tumor cells (n=1). During median follow-up of 1.8 years (range 3 months-9 years), none of the tumors recurred (n=10).We identify and define a new benign tumor class, designated VGLL-altered intraparenchymal CNS schwannomas. These tumors feature VGLL alterations and a specific DNA-methylation profile, with schwannoma-like histopathology and CNS localization, akin to previously classified intracerebral schwannomas. |
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650 | _ | 7 | |a VGLL |2 Other |
650 | _ | 7 | |a gliofibroma |2 Other |
650 | _ | 7 | |a glioma |2 Other |
650 | _ | 7 | |a schwannoma |2 Other |
650 | _ | 7 | |a tumor |2 Other |
700 | 1 | _ | |a Mirchia, Kanish |0 0000-0002-7371-7059 |b 1 |
700 | 1 | _ | |a Tietze, Anna |b 2 |
700 | 1 | _ | |a Liu, Ilon |0 0000-0002-6186-3630 |b 3 |
700 | 1 | _ | |a Siewert, Christin |b 4 |
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