000894308 001__ 894308 000894308 005__ 20250813203211.0 000894308 0247_ $$2doi$$a10.1093/neuonc/noab036 000894308 0247_ $$2ISSN$$a1522-8517 000894308 0247_ $$2ISSN$$a1523-5866 000894308 0247_ $$2Handle$$a2128/30320 000894308 0247_ $$2altmetric$$aaltmetric:105667813 000894308 0247_ $$2pmid$$apmid:33970242 000894308 0247_ $$2WOS$$aWOS:000685248000012 000894308 037__ $$aFZJ-2021-03168 000894308 041__ $$aEnglish 000894308 082__ $$a610 000894308 1001_ $$0P:(DE-HGF)0$$aNassiri, Farshad$$b0 000894308 245__ $$aLoss of H3K27me3 in meningiomas 000894308 260__ $$aOxford$$bOxford Univ. Press$$c2021 000894308 3367_ $$2DRIVER$$aarticle 000894308 3367_ $$2DataCite$$aOutput Types/Journal article 000894308 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1754992293_25206 000894308 3367_ $$2BibTeX$$aARTICLE 000894308 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000894308 3367_ $$00$$2EndNote$$aJournal Article 000894308 520__ $$aBackgroundThere is a critical need for objective and reliable biomarkers of outcome in meningiomas beyond WHO classification. Loss of H3K27me3 has been reported as a prognostically unfavorable alteration in meningiomas. We sought to independently evaluate the reproducibility and prognostic value of H3K27me3 loss by immunohistochemistry (IHC) in a multicenter study.MethodsIHC staining for H3K27me3 and analyses of whole slides from 181 meningiomas across three centers was performed. Staining was analyzed by dichotomization into loss and retained immunoreactivity, and using a 3-tiered scoring system in 151 cases with clear staining. Associations of grouping with outcome were performed using Kaplan-Meier survival estimates.ResultsA total of 21 of 151 tumors (13.9%) demonstrated complete loss of H3K27me3 staining in tumor with retained endothelial staining. Overall, loss of H3K27me3 portended a worse outcome with shorter times to recurrence in our cohort, particularly for WHO grade 2 tumors which were enriched in our study. There were no differences in recurrence-free survival (RFS) for WHO grade 3 patients with retained vs loss of H3K27me3. Scoring by a 3-tiered system did not add further insights into the prognostic value of this H3K27me3 loss. Overall, loss of H3K27me3 was not independently associated with RFS after controlling for WHO grade, extent of resection, sex, age, and recurrence status of tumor on multivariable Cox regression analysis.ConclusionsLoss of H3K27me3 identifies a subset of WHO grade 2 and possibly WHO grade 1 meningiomas with increased recurrence risk. Pooled analyses of a larger cohort of samples with standardized reporting of clinical definitions and staining patterns are warranted. 000894308 536__ $$0G:(DE-HGF)POF4-5252$$a5252 - Brain Dysfunction and Plasticity (POF4-525)$$cPOF4-525$$fPOF IV$$x0 000894308 588__ $$aDataset connected to CrossRef, Journals: juser.fz-juelich.de 000894308 7001_ $$0P:(DE-HGF)0$$aWang, Justin Z$$b1 000894308 7001_ $$0P:(DE-HGF)0$$aSingh, Olivia$$b2 000894308 7001_ $$0P:(DE-HGF)0$$aKarimi, Shirin$$b3 000894308 7001_ $$0P:(DE-HGF)0$$aDalcourt, Tatyana$$b4 000894308 7001_ $$0P:(DE-HGF)0$$aIjad, Nazanin$$b5 000894308 7001_ $$0P:(DE-HGF)0$$aPirouzmand, Neda$$b6 000894308 7001_ $$0P:(DE-HGF)0$$aNg, Ho-Keung$$b7 000894308 7001_ $$0P:(DE-HGF)0$$aSaladino, Andrea$$b8 000894308 7001_ $$0P:(DE-HGF)0$$aPollo, Bianca$$b9 000894308 7001_ $$0P:(DE-HGF)0$$aDimeco, Francesco$$b10 000894308 7001_ $$0P:(DE-HGF)0$$aYip, Stephen$$b11 000894308 7001_ $$0P:(DE-HGF)0$$aGao, Andrew$$b12 000894308 7001_ $$0P:(DE-HGF)0$$aAldape, Kenneth D$$b13 000894308 7001_ $$0P:(DE-HGF)0$$aZadeh, Gelareh$$b14$$eCorresponding author 000894308 7001_ $$0P:(DE-HGF)0$$aAldape, Kenneth$$b15 000894308 7001_ $$0P:(DE-HGF)0$$aAu, Karolyn$$b16 000894308 7001_ $$0P:(DE-HGF)0$$aBarnholtz-Sloan, Jill$$b17 000894308 7001_ $$0P:(DE-HGF)0$$aBehling, Felix$$b18 000894308 7001_ $$0P:(DE-HGF)0$$aBi, Wenya$$b19 000894308 7001_ $$0P:(DE-HGF)0$$aBrastianos, Priscilla$$b20 000894308 7001_ $$0P:(DE-HGF)0$$aButowski, Nicholas$$b21 000894308 7001_ $$0P:(DE-HGF)0$$aBrodie, Chaya$$b22 000894308 7001_ $$0P:(DE-HGF)0$$aCohen-Gadol, Aaron$$b23 000894308 7001_ $$0P:(DE-HGF)0$$aCouce, Marta$$b24 000894308 7001_ $$0P:(DE-HGF)0$$aDimeco, Francesco$$b25 000894308 7001_ $$0P:(DE-HGF)0$$aDrummond, Kate$$b26 000894308 7001_ $$0P:(DE-HGF)0$$aDunn, Ian$$b27 000894308 7001_ $$0P:(DE-HGF)0$$aCohen-Gadol, Aaron$$b28 000894308 7001_ $$0P:(DE-HGF)0$$aGalanis, Eva$$b29 000894308 7001_ $$0P:(DE-Juel1)143792$$aGalldiks, Norbert$$b30 000894308 7001_ $$0P:(DE-HGF)0$$aGiannini, Caterina$$b31 000894308 7001_ $$0P:(DE-HGF)0$$aGoldbrunner, Roland$$b32 000894308 7001_ $$0P:(DE-HGF)0$$aHanemann, Oliver$$b33 000894308 7001_ $$0P:(DE-HGF)0$$aHerold-Mende, Christel$$b34 000894308 7001_ $$0P:(DE-HGF)0$$aHorbinski, Craig$$b35 000894308 7001_ $$0P:(DE-HGF)0$$aHuang, Raymond$$b36 000894308 7001_ $$0P:(DE-HGF)0$$aJavadpour, Mohsen$$b37 000894308 7001_ $$0P:(DE-HGF)0$$aJenkinson, Michael$$b38 000894308 7001_ $$0P:(DE-HGF)0$$aJungk, Christine$$b39 000894308 7001_ $$0P:(DE-HGF)0$$aKaufmann, Timothy$$b40 000894308 7001_ $$0P:(DE-HGF)0$$aKrischek, Boris$$b41 000894308 7001_ $$0P:(DE-HGF)0$$aKurz, Sylvia$$b42 000894308 7001_ $$0P:(DE-HGF)0$$aLachance, Daniel$$b43 000894308 7001_ $$0P:(DE-HGF)0$$aLafougere, Christian$$b44 000894308 7001_ $$0P:(DE-HGF)0$$aLamszus, Katrin$$b45 000894308 7001_ $$0P:(DE-HGF)0$$aLee, Ian$$b46 000894308 7001_ $$0P:(DE-HGF)0$$aMalta, Tathiana$$b47 000894308 7001_ $$0P:(DE-HGF)0$$aMakarenko, Serge$$b48 000894308 7001_ $$0P:(DE-HGF)0$$aMawrin, Christian$$b49 000894308 7001_ $$0P:(DE-HGF)0$$aMcDermott, Michael$$b50 000894308 7001_ $$0P:(DE-HGF)0$$aMillward, Christopher$$b51 000894308 7001_ $$0P:(DE-HGF)0$$aMoliterno-Gunel, Jennifer$$b52 000894308 7001_ $$0P:(DE-HGF)0$$aMorokoff, Andrew$$b53 000894308 7001_ $$0P:(DE-HGF)0$$aNassiri, Farshad$$b54 000894308 7001_ $$0P:(DE-HGF)0$$aNg, H. 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