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100 | 1 | _ | |a Korshunov, Andrey |0 P:(DE-He78)8d9c904a6cea14d4c99c78ba46e41f93 |b 0 |e First author |u dkfz |
245 | _ | _ | |a Integrated molecular characterization of IDH-mutant glioblastomas. |
260 | _ | _ | |a Oxford [u.a.] |c 2019 |b Wiley-Blackwell |
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 1555404231_10187 |2 PUB:(DE-HGF) |
336 | 7 | _ | |a ARTICLE |2 BibTeX |
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336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
520 | _ | _ | |a Mutations of isocitrate dehydrogenase (IDH)1/2 affect almost all astrocytomas of WHO grade II and III. A subset of IDH-mutant astrocytic tumours progresses to IDH-mutant glioblastoma or presents with the histology of a glioblastoma at first presentation. We set out here to assess the molecular spectrum of IDH-mutant glioblastomas.We performed an integrated molecular analysis of a mono-centric cohort (n = 97); assessed through genome-wide DNA methylation analysis, copy-number profiling and targeted next generation sequencing using a neurooncology-tailored gene panel.Of these 97 IDH-mutant glioblastomas, 68 had a glioblastoma at first presentation (de novo IDH-mutant glioblastoma) and 29 emerged from a prior low-grade lesion (evolved IDH-mutant glioblastoma). Unsupervised hierarchical clustering of DNA methylation data disclosed that IDH-mutant glioblastoma (de novo and evolved) formed a distinct group separate from other diffuse glioma subtypes. Homozygous deletions of CDKN2A/B were found to be associated with shorter survival.This study demonstrates DNA methylation patterns in IDH-mutant glioblastoma to be distinct from lower-grade astrocytic counterparts but homogeneous within de novo and evolved IDH-mutant glioblastomas, and identifies CDKN2A as a marker for possible genetic sub-stratification. |
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700 | 1 | _ | |a Hielscher, T. |0 P:(DE-He78)743a4a82daab55306a2c88b9f6bf8c2f |b 3 |u dkfz |
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700 | 1 | _ | |a Ryzhova, M. |b 5 |
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700 | 1 | _ | |a Schrimpf, D. |0 P:(DE-He78)e54a1e0999c1d8c95869ef9188b794cc |b 7 |u dkfz |
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700 | 1 | _ | |a Absalyamova, O. |b 12 |
700 | 1 | _ | |a Golanov, A. |b 13 |
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700 | 1 | _ | |a Herold-Mende, C. |b 17 |
700 | 1 | _ | |a Wick, W. |0 P:(DE-He78)92e9783ca7025f36ce14e12cd348d2ee |b 18 |u dkfz |
700 | 1 | _ | |a Pfister, Stefan |0 P:(DE-He78)f746aa965c4e1af518b016de3aaff5d9 |b 19 |u dkfz |
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700 | 1 | _ | |a Jones, David |0 P:(DE-He78)551bb92841f634070997aa168d818492 |b 21 |u dkfz |
700 | 1 | _ | |a von Deimling, A. |0 P:(DE-He78)a8a10626a848d31e70cfd96a133cc144 |b 22 |u dkfz |
700 | 1 | _ | |a Sahm, Felix |0 P:(DE-He78)a1f4b408b9155beb2a8f7cba4d04fe88 |b 23 |e Last author |u dkfz |
773 | _ | _ | |a 10.1111/nan.12523 |g Vol. 45, no. 2, p. 108 - 118 |0 PERI:(DE-600)2008293-9 |n 2 |p 108 - 118 |t Neuropathology & applied neurobiology |v 45 |y 2019 |x 0305-1846 |
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