PMID- 34698864 OWN - NLM STAT- MEDLINE DCOM- 20220509 LR - 20221028 IS - 1523-5866 (Electronic) IS - 1522-8517 (Print) IS - 1522-8517 (Linking) VI - 24 IP - 5 DP - 2022 May 4 TI - 12p gain is predominantly observed in non-germinomatous germ cell tumors and identifies an unfavorable subgroup of central nervous system germ cell tumors. PG - 834-846 LID - 10.1093/neuonc/noab246 [doi] AB - BACKGROUND: Central nervous system (CNS) germ cell tumors (GCTs) are neoplasms predominantly arising in pediatric and young adult populations. While germinomas generally respond to chemotherapy and radiation, non-germinomatous GCTs (NGGCTs) require more intensive treatment. This study aimed to determine whether 12p gain could predict the prognosis of CNS GCTs. METHODS: Eighty-two CNS GCTs were included in this study. The 12p gain was defined by an additional 12p in the background of potential polyploidy or polysomy. Cases were analyzed using an Illumina methylation 450K array for copy number investigations and validated by fluorescence in situ hybridization (FISH). RESULTS: A 12p gain was found in 25-out-of-82 cases (30%) and was more frequent in NGGCTs (12% of germinoma cases and 50% of NGGCT cases), particularly in cases with malignant components, such as immature teratoma, yolk sac tumor, choriocarcinoma, and embryonal carcinoma. 12p gain and KIT mutation were mutually exclusive events. The presence of 12p gain correlated with shorter progression-free (PFS) and overall survival (OS) (10-year OS: 59% vs. 94%, with and without 12p gain, respectively, P = 0.0002), even with histology and tumor markers incorporated in the multivariate analysis. Among NGGCTs, 12p gain still had prognostic significance for PFS and OS (10-year OS: 47% vs. 90%, respectively, P = 0.02). The 12p copy number status was shared among histological components in mixed GCTs. CONCLUSIONS: 12p gain may predict the presence of malignant components of NGGCTs, and poor prognosis of the patients. It may be associated with early tumorigenesis of CNS GCT. CI - (c) The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Neuro-Oncology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Satomi, Kaishi AU - Satomi K AD - Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan. AD - Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan. FAU - Takami, Hirokazu AU - Takami H AUID- ORCID: 0000-0001-9742-7462 AD - Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan. AD - Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan. FAU - Fukushima, Shintaro AU - Fukushima S AD - Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan. FAU - Yamashita, Satoshi AU - Yamashita S AD - Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan. FAU - Matsushita, Yuko AU - Matsushita Y AD - Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan. FAU - Nakazato, Yoichi AU - Nakazato Y AD - Department of Pathology, Hidaka Hospital, Gunma, Japan. FAU - Suzuki, Tomonari AU - Suzuki T AD - Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Saitama, Japan. FAU - Tanaka, Shota AU - Tanaka S AD - Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan. FAU - Mukasa, Akitake AU - Mukasa A AD - Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan. AD - Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan. FAU - Saito, Nobuhito AU - Saito N AD - Department of Neurosurgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan. FAU - Kanamori, Masayuki AU - Kanamori M AD - Department of Neurosurgery, Tohoku University Graduate School of Medicine, Miyagi, Japan. FAU - Kumabe, Toshihiro AU - Kumabe T AD - Department of Neurosurgery, Tohoku University Graduate School of Medicine, Miyagi, Japan. AD - Department of Neurosurgery, Kitasato University, Kanagawa, Japan. FAU - Tominaga, Teiji AU - Tominaga T AD - Department of Neurosurgery, Tohoku University Graduate School of Medicine, Miyagi, Japan. FAU - Kobayashi, Keiichi AU - Kobayashi K AD - Department of Neurosurgery, Kyorin University Faculty of Medicine, Tokyo, Japan. FAU - Nagane, Motoo AU - Nagane M AUID- ORCID: 0000-0002-0018-1652 AD - Department of Neurosurgery, Kyorin University Faculty of Medicine, Tokyo, Japan. FAU - Iuchi, Toshihiko AU - Iuchi T AD - Department of Neurosurgery, Chiba Cancer Center, Chiba, Japan. FAU - Yoshimoto, Koji AU - Yoshimoto K AD - Department of Neurosurgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. AD - Department of Neurosurgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan. FAU - Tamura, Kaoru AU - Tamura K AD - Department of Functional Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Maehara, Taketoshi AU - Maehara T AD - Department of Functional Neurosurgery, Tokyo Medical and Dental University, Tokyo, Japan. FAU - Sakai, Keiichi AU - Sakai K AD - Department of Neurosurgery, Shinshu Ueda Medical Center, Nagano, Japan. FAU - Sugiyama, Kazuhiko AU - Sugiyama K AD - Department of Clinical Oncology and Neuro-Oncology Program, Cancer Treatment Center, Hiroshima University Hospital, Hiroshima, Japan. FAU - Yokogami, Kiyotaka AU - Yokogami K AD - Department of Neurosurgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan. FAU - Takeshima, Hideo AU - Takeshima H AD - Department of Neurosurgery, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan. FAU - Nonaka, Masahiro AU - Nonaka M AD - Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan. FAU - Asai, Akio AU - Asai A AD - Department of Neurosurgery, Kansai Medical University Hospital, Osaka, Japan. FAU - Ushijima, Toshikazu AU - Ushijima T AD - Division of Epigenomics, National Cancer Center Research Institute, Tokyo, Japan. FAU - Matsutani, Masao AU - Matsutani M AD - Gotanda Rehabilitation Hospital, Tokyo, Japan. FAU - Nishikawa, Ryo AU - Nishikawa R AD - Department of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Saitama, Japan. FAU - Ichimura, Koichi AU - Ichimura K AD - Division of Brain Tumor Translational Research, National Cancer Center Research Institute, Tokyo, Japan. AD - Department of Brain Disease Translational Research, Juntendo University Faculty of Medicine, Tokyo, Japan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Neuro Oncol JT - Neuro-oncology JID - 100887420 RN - Nonseminomatous germ cell tumor SB - IM MH - *Brain Neoplasms/genetics/therapy MH - *Central Nervous System Neoplasms/genetics/pathology MH - Child MH - *Germinoma MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - *Neoplasms, Germ Cell and Embryonal/genetics/therapy MH - *Pineal Gland/pathology MH - *Testicular Neoplasms PMC - PMC9071297 OTO - NOTNLM OT - 12p gain OT - DNA methylation OT - FISH OT - central nervous system germ cell tumor OT - copy number alteration EDAT- 2021/10/27 06:00 MHDA- 2022/05/10 06:00 PMCR- 2022/10/26 CRDT- 2021/10/26 12:29 PHST- 2021/10/27 06:00 [pubmed] PHST- 2022/05/10 06:00 [medline] PHST- 2021/10/26 12:29 [entrez] PHST- 2022/10/26 00:00 [pmc-release] AID - 6410684 [pii] AID - noab246 [pii] AID - 10.1093/neuonc/noab246 [doi] PST - ppublish SO - Neuro Oncol. 2022 May 4;24(5):834-846. doi: 10.1093/neuonc/noab246.