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@ARTICLE{Sievers:300620,
author = {P. Sievers$^*$ and S. Arora and T. Hielscher$^*$ and D.
Savran$^*$ and D. Schrimpf$^*$ and R. Banan$^*$ and D.
Vonhören$^*$ and S. Pusch$^*$ and M. Sill$^*$ and R. Appay
and H.-G. Wirsching and T. Hortobagyi and H. Dohmen and T.
Acker and P. Kohlhof-Meinecke and L. Schweizer$^*$ and A. K.
Wefers and P. Harter$^*$ and C. Hartmann and R. Beschorner
and J. Schittenhelm and F. Behling and G. Tabatabai and C.
Mawrin and M. Snuderl and S. L. N. Maas and P. Wesseling and
S. Brandner and A. Korshunov$^*$ and M. Ratliff$^*$ and S.
M. Krieg and W. Wick$^*$ and D. T. W. Jones$^*$ and S. M.
Pfister$^*$ and E. C. Holland and A. von Deimling$^*$ and F.
Szulzewsky and F. Sahm$^*$},
title = {{M}olecular signatures define {BAP}1-altered meningioma as
a distinct {CNS} tumor with deregulation of {P}olycomb
repressive complex target genes.},
journal = {Neuro-Oncology},
volume = {27},
number = {9},
issn = {1522-8517},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {DKFZ-2025-00834},
pages = {2326-2340},
year = {2025},
note = {#EA:B300#LA:B300# / 2025 Oct 14;27(9):2326-2340},
abstract = {Meningiomas are the most common primary intracranial
neoplasms, with highly variable patient outcomes. While most
meningiomas are benign, a significant subset recurs
postoperatively, presenting substantial treatment
challenges. BAP1 gene inactivation has been suggested as a
marker for aggressive meningiomas, although its precise
molecular and clinical roles remain poorly understood.To
comprehensively investigate BAP1-altered meningiomas, we
used six meningiomas with known BAP1 alterations as a
discovery set. Genome-wide DNA methylation profiling of
these samples, along 11,151 reference meningiomas,
identified a distinct molecular cluster (n = 42) using
unsupervised visualization approaches. These tumors were
further characterized by DNA/RNA sequencing,
histopathological examination, and a retrospective review of
clinical data, compared to reference meningioma cohorts,
providing a thorough characterization of this rare tumor
subtype.Our integrative analysis revealed BAP1-altered
meningiomas as a distinct CNS tumor subtype, characterized
by recurrent loss of chromosome 3p21 and driven by various
BAP1-inactivating alterations. Although rhabdoid morphology
is present in some cases, it is not exclusive and should not
be used as a grading criterion. Progression-free survival
analysis showed a median of 21 months $(95\%$ CI: 12-NA),
with a 2-year overall survival rate of $79\%$ $(95\%$ CI:
$60\%-100\%),$ highlighting the aggressive nature of these
tumors. Gene expression profiling revealed upregulation of
PRC target genes, dysregulated Polycomb signaling, and
elevated expression in several cellular and growth factor
pathways.BAP1-altered meningiomas represent a distinct and
aggressive CNS tumor subtype associated with PRC
dysregulation and recurrent 3p chromosome loss. These
findings support the designation 'meningioma,
BAP1-altered.'},
keywords = {BAP1 (Other) / Chromosome 3p loss (Other) / Meningioma
(Other) / Polycomb signaling (Other) / rhabdoid (Other)},
cin = {B300 / C060 / B062 / HD01 / FM01 / MU01 / B320 / B360},
ddc = {610},
cid = {I:(DE-He78)B300-20160331 / I:(DE-He78)C060-20160331 /
I:(DE-He78)B062-20160331 / I:(DE-He78)HD01-20160331 /
I:(DE-He78)FM01-20160331 / I:(DE-He78)MU01-20160331 /
I:(DE-He78)B320-20160331 / I:(DE-He78)B360-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:40249111},
doi = {10.1093/neuonc/noaf105},
url = {https://inrepo02.dkfz.de/record/300620},
}