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@ARTICLE{Schepke:180808,
author = {E. Schepke and M. Löfgren and T. Pietsch and T. O. Bontell
and T. Kling and A. Wenger and S. F. Vega and A. Danielsson
and S. Dosa and S. Holm and A. Öberg and P. Nyman and M.
Eliasson-Hofvander and P.-E. Sandström and S. Pfister$^*$
and B. Lannering and M. Sabel and H. Carén},
title = {{DNA} methylation profiling improves routine diagnosis of
paediatric {CNS} tumours: a prospective population-based
study.},
journal = {Neuropathology $\&$ applied neurobiology},
volume = {48},
number = {6},
issn = {0305-1846},
address = {Oxford [u.a.]},
publisher = {Wiley-Blackwell},
reportid = {DKFZ-2022-01570},
pages = {e12838},
year = {2022},
note = {2022 Oct;48(6):e12838},
abstract = {Paediatric brain tumours are rare and establishing a
precise diagnosis can be challenging. Analysis of DNA
methylation profiles has been shown to be a reliable method
to classify central nervous system (CNS) tumours with high
accuracy. We aimed to prospectively analyse CNS tumours
diagnosed in Sweden, to assess the clinical impact of adding
DNA methylation-based classification to standard paediatric
brain tumour diagnostics in an unselected cohort.All CNS
tumours diagnosed in children (0-18 years) during 2017-2020
were eligible for inclusion provided sufficient tumour
material was available. Tumours were analysed using
genome-wide DNA methylation profiling and classified by the
MNP brain tumour classifier. The initial histopathological
diagnosis was compared to the DNA methylation-based
classification. For incongruent results, a blinded
re-evaluation was performed by an experienced
neuropathologist.240 tumours with a histopathology-based
diagnosis were profiled. A high-confidence methylation score
of 0.84 or more was reached in $78\%$ of the cases. In
$69\%,$ the histopathological diagnosis was confirmed and
for some of these also refined, $6\%$ were incongruent and
the re-evaluation favoured the methylation-based
classification. In the remaining $3\%$ of cases, the
methylation class was non-contributory. The change in
diagnosis would have had a direct impact on the clinical
management in $5\%$ of all patients.Integrating DNA
methylation-based tumour classification into routine
clinical analysis improves diagnostics and provides
molecular information that is important for treatment
decisions. The results from methylation profiling should be
interpreted in the context of clinical and histopathological
information.},
keywords = {DNA methylation profiling (Other) / Molecular
classification (Other) / Paediatric brain tumours (Other) /
diagnostics (Other)},
cin = {B062},
ddc = {610},
cid = {I:(DE-He78)B062-20160331},
pnm = {312 - Funktionelle und strukturelle Genomforschung
(POF4-312)},
pid = {G:(DE-HGF)POF4-312},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:35892159},
doi = {10.1111/nan.12838},
url = {https://inrepo02.dkfz.de/record/180808},
}