Home > Publications database > Glioneuronal tumor with ATRX alteration, kinase fusion and anaplastic features (GTAKA): a molecularly distinct brain tumor type with recurrent NTRK gene fusions. > print

001     274356
005     20240229154931.0
024 7 _ |a 10.1007/s00401-023-02558-0
|2 doi
024 7 _ |a pmid:36933012
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024 7 _ |a 0001-6322
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024 7 _ |a 1432-0533
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024 7 _ |a altmetric:144053751
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037 _ _ |a DKFZ-2023-00558
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Bogumil, Henri
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245 _ _ |a Glioneuronal tumor with ATRX alteration, kinase fusion and anaplastic features (GTAKA): a molecularly distinct brain tumor type with recurrent NTRK gene fusions.
260 _ _ |a Heidelberg
|c 2023
|b Springer
336 7 _ |a article
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336 7 _ |a Output Types/Journal article
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336 7 _ |a Journal Article
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|s 1687856141_19597
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336 7 _ |a ARTICLE
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336 7 _ |a Journal Article
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500 _ _ |a #EA:B300#LA:B360#LA:B300#LA:B062# / 2023 May;145(5):667-680
520 _ _ |a Glioneuronal tumors are a heterogenous group of CNS neoplasms that can be challenging to accurately diagnose. Molecular methods are highly useful in classifying these tumors-distinguishing precise classes from their histological mimics and identifying previously unrecognized types of tumors. Using an unsupervised visualization approach of DNA methylation data, we identified a novel group of tumors (n = 20) that formed a cluster separate from all established CNS tumor types. Molecular analyses revealed ATRX alterations (in 16/16 cases by DNA sequencing and/or immunohistochemistry) as well as potentially targetable gene fusions involving receptor tyrosine-kinases (RTK; mostly NTRK1-3) in all of these tumors (16/16; 100%). In addition, copy number profiling showed homozygous deletions of CDKN2A/B in 55% of cases. Histological and immunohistochemical investigations revealed glioneuronal tumors with isomorphic, round and often condensed nuclei, perinuclear clearing, high mitotic activity and microvascular proliferation. Tumors were mainly located supratentorially (84%) and occurred in patients with a median age of 19 years. Survival data were limited (n = 18) but point towards a more aggressive biology as compared to other glioneuronal tumors (median progression-free survival 12.5 months). Given their molecular characteristics in addition to anaplastic features, we suggest the term glioneuronal tumor with ATRX alteration, kinase fusion and anaplastic features (GTAKA) to describe these tumors. In summary, our findings highlight a novel type of glioneuronal tumor driven by different RTK fusions accompanied by recurrent alterations in ATRX and homozygous deletions of CDKN2A/B. Targeted approaches such as NTRK inhibition might represent a therapeutic option for patients suffering from these tumors.
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588 _ _ |a Dataset connected to CrossRef, PubMed, , Journals: inrepo02.dkfz.de
650 _ 7 |a ATRX
|2 Other
650 _ 7 |a DNA methylation
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650 _ 7 |a Gene fusion
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650 _ 7 |a Glioneuronal tumor
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650 _ 7 |a NTRK
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700 1 _ |a Sill, Martin
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700 1 _ |a Schrimpf, Daniel
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700 1 _ |a Schittenhelm, Jens
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700 1 _ |a Boldt, Henning B
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700 1 _ |a Kristensen, Bjarne Winther
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700 1 _ |a Scheie, David
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700 1 _ |a Melchior, Linea C
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700 1 _ |a Boué, Daniel R
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700 1 _ |a Herold-Mende, Christel
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700 1 _ |a Pfister, Stefan M
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700 1 _ |a Jones, David T W
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700 1 _ |a Sahm, Felix
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700 1 _ |a Sievers, Philipp
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