Abstract
The revised 4th edition of the 2016 World Health Organization Classification of Tumors of the Central Nervous System (2016 CNS WHO) has introduced the integrated diagnostic classification that combines molecular and histological diagnoses for diffuse gliomas. In this study, we evaluated the molecular alterations for consecutive 300 diffuse glioma cases (grade 2, 56; grade 3, 62; grade 4, 182) based on this classification. Mutations in the isocitrate dehydrogenase (IDH) genes were common in lower grade glioma (LGG: grade2–3), and when combined with 1p/19q status, LGGs could be stratified into three groups except for four cases (Astrocytoma, IDH-mutant: 44; Oligodendroglioma, IDH-mutant and 1p/19q codeleted: 37; Astrocytoma, IDH-wildtype: 33). 1p/19q-codeleted oligodendrogliomas were clinically the most favorable subgroup even with upfront chemotherapy. In contrast, IDH-wildtype astrocytomas had a relatively worse prognosis; however, this subgroup was more heterogeneous. Of this subgroup, 11 cases had TERT promoter (pTERT) mutation with shorter overall survival than 12 pTERT-wildtype cases. Additionally, a longitudinal analysis indicated pTERT mutation as early molecular event for gliomagenesis. Therefore, pTERT mutation is critical for the diagnosis of molecular glioblastoma (WHO grade 4), regardless of histological findings, and future treatment strategy should be considered based on the precise molecular analysis.
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References
Louis DN, Ohgaki H, Wiestler OD et al (2016) WHO Classification of Tumours of the central nervous system. International Agency for Research on Cancer (IARC), Lyon
Yan H, Parsons DW, Jin G et al (2009) IDH1 and IDH2 mutations in gliomas. N Engl J Med 360:765–773. https://doi.org/10.1056/NEJMoa0808710
Cancer Genome Atlas Research N, Brat DJ, Verhaak RG et al (2015) Comprehensive, integrative genomic analysis of diffuse lower-grade gliomas. N Engl J Med 372:2481–2498. https://doi.org/10.1056/NEJMoa1402121
Komori T (2020) Updating the grading criteria for adult diffuse gliomas: beyond the WHO2016CNS classification. Brain Tumor Pathol 37:1–4. https://doi.org/10.1007/s10014-020-00358-y
Cairncross JG, Ueki K, Zlatescu MC et al (1998) Specific genetic predictors of chemotherapeutic response and survival in patients with anaplastic oligodendrogliomas. J Natl Cancer Inst 90:1473–1479
Jiang H, Ren X, Cui X et al (2013) 1p/19q codeletion and IDH1/2 mutation identified a subtype of anaplastic oligoastrocytomas with prognosis as favorable as anaplastic oligodendrogliomas. Neuro Oncol 15:775–782. https://doi.org/10.1093/neuonc/not027
Aibaidula A, Chan AK-Y, Shi Z et al (2017) Adult IDH wild-type lower-grade gliomas should be further stratified. Neuro Oncol 19:1327–1337. https://doi.org/10.1093/neuonc/nox078
Cairncross G, Wang M, Shaw E et al (2013) Phase III trial of chemoradiotherapy for anaplastic oligodendroglioma: long-term results of RTOG 9402. J Clin Oncol 31:337–343. https://doi.org/10.1200/JCO.2012.43.2674
van den Bent MJ, Brandes AA, Taphoorn MJ et al (2013) Adjuvant procarbazine, lomustine, and vincristine chemotherapy in newly diagnosed anaplastic oligodendroglioma: long-term follow-up of EORTC brain tumor group study 26951. J Clin Oncol 31:344–350. https://doi.org/10.1200/JCO.2012.43.2229
Hata N, Yoshimoto K, Hatae R et al (2016) Deferred radiotherapy and upfront procarbazine-ACNU-vincristine administration for 1p19q codeleted oligodendroglial tumors are associated with favorable outcome without compromising patient performance, regardless of WHO grade. Onco Targets Ther 9:7123–7131. https://doi.org/10.2147/OTT.S115911
Kuga D, Hata N, Akagi Y et al (2018) The effectiveness of salvage treatments for recurrent lesions of oligodendrogliomas previously treated with upfront chemotherapy. World Neurosurg 114:e735–e742. https://doi.org/10.1016/j.wneu.2018.03.069
Louis DN, Wesseling P, Paulus W et al (2018) cIMPACT-now update 1: not otherwise specified (NOS) and not elsewhere classified (NEC). Acta Neuropathol 135:481–484. https://doi.org/10.1007/s00401-018-1808-0
Louis DN, Giannini C, Capper D et al (2018) cIMPACT-NOW update 2: diagnostic clarifications for diffuse midline glioma, H3 K27M-mutant and diffuse astrocytoma/anaplastic astrocytoma, IDH-mutant. Acta Neuropathol 135:639–642. https://doi.org/10.1007/s00401-018-1826-y
Brat DJ, Aldape K, Colman H et al (2018) cIMPACT-NOW update 3: recommended diagnostic criteria for “diffuse astrocytic glioma, IDH-wildtype, with molecular features of glioblastoma, WHO grade IV.” Acta Neuropathol 136:805–810. https://doi.org/10.1007/s00401-018-1913-0
Ellison DW, Hawkins C, Jones DTW et al (2019) cIMPACT-NOW update 4: diffuse gliomas characterized by MYB, MYBL1, or FGFR1 alterations or BRAF (V600E) mutation. Acta Neuropathol 137:683–687. https://doi.org/10.1007/s00401-019-01987-0
Brat DJ, Aldape K, Colman H et al (2020) cIMPACT-NOW update 5: recommended grading criteria and terminologies for IDH-mutant astrocytomas. Acta Neuropathol 139:603–608. https://doi.org/10.1007/s00401-020-02127-9
Louis DN, Wesseling P, Aldape K et al (2020) cIMPACT-NOW update 6: new entity and diagnostic principle recommendations of the cIMPACT-Utrecht meeting on future CNS tumor classification and grading. Brain Pathol 30:844–856. https://doi.org/10.1111/bpa.12832
Ellison DW, Aldape KD, Capper D et al (2020) cIMPACT-NOW update 7: advancing the molecular classification of ependymal tumors. Brain Pathol. https://doi.org/10.1111/bpa.12866
Tesileanu CMS, Dirven L, Wijnenga MMJ et al (2020) Survival of diffuse astrocytic glioma, IDH1/2 wildtype, with molecular features of glioblastoma, WHO grade IV: a confirmation of the cIMPACT-NOW criteria. Neuro Oncol 22:515–523. https://doi.org/10.1093/neuonc/noz200
Komori T (2021) The molecular framework of pediatric-type diffuse gliomas: shifting toward the revision of the WHO classification of tumors of the central nervous system. Brain Tumor Pathol 38:1–3. https://doi.org/10.1007/s10014-020-00392-w
Yoshimoto K, Iwaki T, Inamura T et al (2002) Multiplexed analysis of post-PCR fluorescence-labeled microsatellite alleles and statistical evaluation of their imbalance in brain tumors. Jpn J Cancer Res 93:284–290
Akagi Y, Yoshimoto K, Hata N et al (2018) Reclassification of 400 consecutive glioma cases based on the revised 2016 WHO classification. Brain Tumor Pathol 35:81–89. https://doi.org/10.1007/s10014-018-0313-4
Hatae R, Hata N, Yoshimoto K et al (2016) Precise detection of IDH1/2 and BRAF hotspot mutations in clinical glioma tissues by a differential calculus analysis of high-resolution melting data. PLoS ONE 11:e0160489. https://doi.org/10.1371/journal.pone.0160489
Hatae R, Hata N, Suzuki SO et al (2017) A comprehensive analysis identifies BRAF hotspot mutations associated with gliomas with peculiar epithelial morphology. Neuropathology 37:191–199. https://doi.org/10.1111/neup.12347
Chen L, Voronovich Z, Clark K et al (2014) Predicting the likelihood of an isocitrate dehydrogenase 1 or 2 mutation in diagnoses of infiltrative glioma. Neuro Oncol 16:1478–1483. https://doi.org/10.1093/neuonc/nou097
Ramirez C, Bowman C, Maurage CA et al (2010) Loss of 1p, 19q, and 10q heterozygosity prospectively predicts prognosis of oligodendroglial tumors–towards individualized tumor treatment? Neuro Oncol 12:490–499. https://doi.org/10.1093/neuonc/nop071
Eckel-Passow JE, Lachance DH, Molinaro AM et al (2015) Glioma groups based on 1p/19q, IDH, and TERT promoter mutations in tumors. N Engl J Med 372:2499–2508. https://doi.org/10.1056/NEJMoa1407279
Mizoguchi M, Kuga D, Guan Y et al (2011) Loss of heterozygosity analysis in malignant gliomas. Brain Tumor Pathol 28:191–196. https://doi.org/10.1007/s10014-011-0038-0
Jenkins RB, Blair H, Ballman KV et al (2006) A t(1;19)(q10;p10) mediates the combined deletions of 1p and 19q and predicts a better prognosis of patients with oligodendroglioma. Can Res 66:9852–9861. https://doi.org/10.1158/0008-5472.can-06-1796
Griffin CA, Burger P, Morsberger L et al (2006) Identification of der(1;19)(q10;p10) in five oligodendrogliomas suggests mechanism of concurrent 1p and 19q loss. J Neuropathol Exp Neurol 65:988–994. https://doi.org/10.1097/01.jnen.0000235122.98052.8f
Mizoguchi M, Yoshimoto K, Ma X et al (2012) Molecular characteristics of glioblastoma with 1p/19q co-deletion. Brain Tumor Pathol 29:148–153. https://doi.org/10.1007/s10014-012-0107-z
Arita H, Matsushita Y, Machida R et al (2020) TERT promoter mutation confers favorable prognosis regardless of 1p/19q status in adult diffuse gliomas with IDH1/2 mutations. Acta Neuropathol Commun 8:201. https://doi.org/10.1186/s40478-020-01078-2
Aoki K, Nakamura H, Suzuki H et al (2018) Prognostic relevance of genetic alterations in diffuse lower-grade gliomas. Neuro Oncol 20:66–77. https://doi.org/10.1093/neuonc/nox132
Metellus P, Coulibaly B, Colin C et al (2010) Absence of IDH mutation identifies a novel radiologic and molecular subtype of WHO grade II gliomas with dismal prognosis. Acta Neuropathol 120:719–729. https://doi.org/10.1007/s00401-010-0777-8
Qaddoumi I, Orisme W, Wen J et al (2016) Genetic alterations in uncommon low-grade neuroepithelial tumors: BRAF, FGFR1, and MYB mutations occur at high frequency and align with morphology. Acta Neuropathol 131:833–845. https://doi.org/10.1007/s00401-016-1539-z
Ryall S, Zapotocky M, Fukuoka K et al (2020) Integrated molecular and clinical analysis of 1,000 pediatric low-grade gliomas. Cancer Cell 37:569-583.e565. https://doi.org/10.1016/j.ccell.2020.03.011
Zhang J, Wu G, Miller CP et al (2013) Whole-genome sequencing identifies genetic alterations in pediatric low-grade gliomas. Nat Genet 45:602–612. https://doi.org/10.1038/ng.2611
Stichel D, Ebrahimi A, Reuss D et al (2018) Distribution of EGFR amplification, combined chromosome 7 gain and chromosome 10 loss, and TERT promoter mutation in brain tumors and their potential for the reclassification of IDHwt astrocytoma to glioblastoma. Acta Neuropathol 136:793–803. https://doi.org/10.1007/s00401-018-1905-0
Killela PJ, Reitman ZJ, Jiao Y et al (2013) TERT promoter mutations occur frequently in gliomas and a subset of tumors derived from cells with low rates of self-renewal. Proc Natl Acad Sci USA 110:6021–6026. https://doi.org/10.1073/pnas.1303607110
Barthel FP, Wesseling P, Verhaak RGW (2018) Reconstructing the molecular life history of gliomas. Acta Neuropathol 135:649–670. https://doi.org/10.1007/s00401-018-1842-y
Jonsson P, Lin AL, Young RJ et al (2019) Genomic correlates of disease progression and treatment response in prospectively characterized gliomas. Clin Cancer Res 25:5537–5547. https://doi.org/10.1158/1078-0432.CCR-19-0032
Korber V, Yang J, Barah P et al (2019) Evolutionary trajectories of IDH (WT) glioblastomas reveal a common path of early tumorigenesis instigated years ahead of initial diagnosis. Cancer Cell 35(692–704):e612. https://doi.org/10.1016/j.ccell.2019.02.007
Castel D, Philippe C, Calmon R et al (2015) Histone H3F3A and HIST1H3B K27M mutations define two subgroups of diffuse intrinsic pontine gliomas with different prognosis and phenotypes. Acta Neuropathol 130:815–827. https://doi.org/10.1007/s00401-015-1478-0
Barthel FP, Johnson KC, Varn FS et al (2019) Longitudinal molecular trajectories of diffuse glioma in adults. Nature 576:112–120. https://doi.org/10.1038/s41586-019-1775-1
Patel AP, Tirosh I, Trombetta JJ et al (2014) Single-cell RNA-seq highlights intratumoral heterogeneity in primary glioblastoma. Science 344:1396–1401. https://doi.org/10.1126/science.1254257
Suzuki H, Aoki K, Chiba K et al (2015) Mutational landscape and clonal architecture in grade II and III gliomas. Nat Genet 47:458–468. https://doi.org/10.1038/ng.3273
Wang J, Cazzato E, Ladewig E et al (2016) Clonal evolution of glioblastoma under therapy. Nat Genet 48:768–776. https://doi.org/10.1038/ng.3590
Furnari FB, Cloughesy TF, Cavenee WK et al (2015) Heterogeneity of epidermal growth factor receptor signalling networks in glioblastoma. Nat Rev Cancer 15:302–310. https://doi.org/10.1038/nrc3918
Sonoda Y, Yokoo H, Tanaka S et al (2019) Practical procedures for the integrated diagnosis of astrocytic and oligodendroglial tumors. Brain Tumor Pathol 36:56–62. https://doi.org/10.1007/s10014-019-00337-y
Jeuken J, Sijben A, Alenda C et al (2009) Robust detection of EGFR copy number changes and EGFR variant III: technical aspects and relevance for glioma diagnostics. Brain Pathol 19:661–671. https://doi.org/10.1111/j.1750-3639.2009.00320.x
Acknowledgements
This study was supported by the Japanese Society for the Promotion of Science Grants-in-Aid for Scientific Research (JSPS KAKENHI) Grant No. JP21H03044, JP21K09128, JP20K09392, JP20K17972, 19K17673, and Fujita Memorial Fund for Medical Research (GAKF800362) and Ichiro Kanehara Foundation for the Promotion of Medical Sciences and Medical Care(GAKF800381)
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Mizoguchi, M., Hata, N., Kuga, D. et al. Clinical implications of molecular analysis in diffuse glioma stratification. Brain Tumor Pathol 38, 210–217 (2021). https://doi.org/10.1007/s10014-021-00409-y
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DOI: https://doi.org/10.1007/s10014-021-00409-y