PMID- 37749819 OWN - NLM STAT- MEDLINE DCOM- 20231130 LR - 20231130 IS - 2542-5641 (Electronic) IS - 0366-6999 (Print) IS - 0366-6999 (Linking) VI - 136 IP - 22 DP - 2023 Nov 20 TI - Genetic insights into thymic carcinomas and thymic neuroendocrine neoplasms denote prognosis signatures and pathways. PG - 2712-2721 LID - 10.1097/CM9.0000000000002852 [doi] AB - BACKGROUND: Thymic carcinomas (TCs) and thymic neuroendocrine neoplasms (TNENs) are two aggressive subtypes of thymic malignancy. Traditional therapy for advanced TCs and TNENs has limited outcome. New genomic profiling of TCs and TNENs might provide insights that contribute to the development of new treatment approaches. METHODS: We used gene panel sequencing technologies to investigate the genetic aberrations of 32 TC patients and 15 TNEN patients who underwent surgery at Shanghai Chest Hospital between 2015 and 2017. Patient samples were sequenced using a 324-gene platform with licensed technologies. In this study, we focused on clinically relevant genomic alterations (CRGAs), which are previously proven to be pathogenic alterations, to identify the pathology-specific mutational patterns, prognostic signatures of TCs and TNENs. RESULTS: The mutational profiles between TCs and TNENs were diverse. The genetic alterations that ranked highest in TCs were in CDKN2A, TP53, ASXL1, CDKN2B, PIK3C2G, PTCH1, and ROS1 , while those in TNENs were in MEN1, MLL2, APC, RB1 , and TSC2 . Prognostic analysis showed that mutations of ROS1, CDKN2A, CDKN2B, BRAF, and BAP1 were significantly associated with worse outcomes in TC patients, and that mutation of ERBB2 indicated shortened disease-free survival (DFS) and overall survival (OS) in TNEN patients. Further investigation found that the prognosis-related genes were focused on signal pathways of cell cycle control, chromatin remodeling/DNA methylation, phosphoinositide 3-kinases (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR), and receptor tyrosine kinase (RTK)/RAS/mitogen-activated protein kinase (MAPK) signaling. CONCLUSION: We profiled the mutational features of 47 Chinese patients with thymic malignancy of diverse pathologic phenotypes to uncover the integrated genomic landscape of these rare tumors, and identified the pathology-specific mutational patterns, prognostic signatures, and potential therapeutic targets for TCs and TNENs. CI - Copyright (c) 2023 The Chinese Medical Association, produced by Wolters Kluwer, Inc. under the CC-BY-NC-ND license. FAU - Wang, Shuyuan AU - Wang S AD - Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China. FAU - Gu, Zhitao AU - Gu Z AD - Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China. FAU - Zhu, Lei AU - Zhu L AD - Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China. FAU - Han, Yuchen AU - Han Y AD - Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China. FAU - Yu, Hong AU - Yu H AD - Department of Radiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China. FAU - Fang, Wentao AU - Fang W AD - Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China. FAU - Han, Baohui AU - Han B AD - Department of Respiratory and Critical Care Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China. LA - eng PT - Journal Article DEP - 20230925 PL - China TA - Chin Med J (Engl) JT - Chinese medical journal JID - 7513795 RN - EC 2.7.10.1 (Protein-Tyrosine Kinases) RN - 0 (Proto-Oncogene Proteins) RN - Thymic epithelial tumor SB - IM MH - Humans MH - *Thymoma MH - Protein-Tyrosine Kinases/genetics MH - Proto-Oncogene Proteins/genetics MH - China MH - *Thymus Neoplasms/genetics/pathology MH - Prognosis MH - *Neuroendocrine Tumors/genetics/pathology MH - Mutation/genetics PMC - PMC10684125 COIS- None. EDAT- 2023/09/26 06:43 MHDA- 2023/11/30 06:42 PMCR- 2023/11/20 CRDT- 2023/09/26 00:33 PHST- 2023/04/10 00:00 [received] PHST- 2023/11/30 06:42 [medline] PHST- 2023/09/26 06:43 [pubmed] PHST- 2023/09/26 00:33 [entrez] PHST- 2023/11/20 00:00 [pmc-release] AID - 00029330-990000000-00812 [pii] AID - CMJ-2022-3113 [pii] AID - 10.1097/CM9.0000000000002852 [doi] PST - ppublish SO - Chin Med J (Engl). 2023 Nov 20;136(22):2712-2721. doi: 10.1097/CM9.0000000000002852. Epub 2023 Sep 25.