Loss of histone H3K27me3 identifies a subset of meningiomas with increased risk of recurrence
Epigenetic patterns on the level of DNA methylation have already been shown to separate clinically relevant subgroups of meningiomas. We here set out to identify potential prognostic implications of epigenetic modification on the level of histones with focus on H3K27 trimethylation (H3K27me3). H3K27...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
07 April 2018
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| In: |
Acta neuropathologica
Year: 2018, Jahrgang: 135, Heft: 6, Pages: 955-963 |
| ISSN: | 1432-0533 |
| DOI: | 10.1007/s00401-018-1844-9 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1007/s00401-018-1844-9
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| Verfasserangaben: | Leah M. Katz, Thomas Hielscher, Benjamin Liechty, Joshua Silverman, David Zagzag, Rajeev Sen, Peter Wu, John G. Golfinos, David Reuss, Marian Christoph Neidert, Hans-Georg Wirsching, Peter Baumgarten, Christel Herold-Mende, Wolfgang Wick, Patrick N. Harter, Michael Weller, Andreas von Deimling, Matija Snuderl, Chandra Sen, Felix Sahm |
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| 245 | 1 | 0 | |a Loss of histone H3K27me3 identifies a subset of meningiomas with increased risk of recurrence |c Leah M. Katz, Thomas Hielscher, Benjamin Liechty, Joshua Silverman, David Zagzag, Rajeev Sen, Peter Wu, John G. Golfinos, David Reuss, Marian Christoph Neidert, Hans-Georg Wirsching, Peter Baumgarten, Christel Herold-Mende, Wolfgang Wick, Patrick N. Harter, Michael Weller, Andreas von Deimling, Matija Snuderl, Chandra Sen, Felix Sahm |
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| 520 | |a Epigenetic patterns on the level of DNA methylation have already been shown to separate clinically relevant subgroups of meningiomas. We here set out to identify potential prognostic implications of epigenetic modification on the level of histones with focus on H3K27 trimethylation (H3K27me3). H3K27me3 was assessed by immunohistochemistry on 232 meningiomas from 232 patients. In 194 cases, trimethylation was detected in tumor cells. In 25 cases, staining was limited to vessels while all tumor cells were negative. Finally, 13 cases yielded equivocal staining patterns. Reduced abundance of H3K27me3 in cases with staining limited to vessels was confirmed by mass spectrometry on a subset of cases. Lack of staining for H3K27me3 in all tumor cells was significantly associated with more rapid progression (p = 0.009). In line, H3K27me3-negative cases were associated with a DNA methylation pattern of the more aggressive types among the recently introduced DNA methylation groups. Also, NF2 and SUFU mutations were enriched among cases with complete lack of H3K27me3 staining in tumor cells (p < 0.0001 and p = 0.029, respectively). H3K27me3 staining pattern added significant prognostic insight into WHO grade II cases and in the compound subset of WHO grade I and II cases (p = 0.04 and p = 0.007, respectively). However, it did not further stratify within WHO grade III cases. Collectively, these data indicate that epigenetic modifications beyond DNA methylation are involved in the aggressiveness of meningioma. It also suggests that H3K27me3 immunohistochemistry might be a useful adjunct in meningioma diagnostics, particularly for cases with WHO grade II histology or at the borderline between WHO grade I and II. | ||
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| 650 | 4 | |a Histone modification | |
| 650 | 4 | |a Meningioma | |
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