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Balbino M, Masino F, Erriquez D, Carpagnano FA, Montatore M, Fascia G, Sciacqua A, Guglielmi G. A rare case report of breast sarcoma and synchronous thymoma in a 60-year-old woman. Radiol Case Rep 2024; 19:3216-3221. [PMID: 38800081 PMCID: PMC11126876 DOI: 10.1016/j.radcr.2024.04.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/29/2024] Open
Abstract
This case report aims to describe the clinical presentation, imaging findings, histopathological features and therapeutic approach of a patient diagnosed with coexisting breast sarcoma and thymoma. A 64-year-old woman presented with a palpable lump in her left breast, and subsequent imaging studies (ultrasound, mammography, and MRI) revealed breast sarcoma, a rare and aggressive subtype of breast cancer. At the same time, the MRI revealed the presence of a thymoma. A multidisciplinary approach involving surgeon, breast specialist and oncologist is essential for optimal management and favorable outcomes in patients with this rare diagnosis.
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Affiliation(s)
- Marina Balbino
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia (FG), Italy
| | - Federica Masino
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia (FG), Italy
| | - Daniela Erriquez
- Breast Unit, “Dimiccoli” Hospital, Viale Ippocrate 15, 70051, Barletta (BT), Italy
| | | | - Manuela Montatore
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia (FG), Italy
| | - Giacomo Fascia
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia (FG), Italy
| | - Alessio Sciacqua
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia (FG), Italy
| | - Giuseppe Guglielmi
- Department of Clinical and Experimental Medicine, Foggia University School of Medicine, Viale L. Pinto 1, 71121, Foggia (FG), Italy
- Radiology Unit, “Dimiccoli” Hospital, Viale Ippocrate 15, 70051, Barletta (BT), Italy
- Radiology Unit, “IRCCS Casa Sollievo della Sofferenza” Hospital, Viale Cappuccini 1, 71013 San Giovanni Rotondo (FG), Italy
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2
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Wang Y, Qi G, Yang Y, Yang H. Clinical features of thymoma with and without myasthenia gravis. Pak J Med Sci 2024; 40:1384-1390. [PMID: 39092039 PMCID: PMC11255815 DOI: 10.12669/pjms.40.7.8698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 03/15/2024] [Accepted: 04/07/2024] [Indexed: 08/04/2024] Open
Abstract
Objective To explore the clinical features of thymoma with and without myasthenia gravis (MG). Methods This was a retrospective study. Two hundred and thirty-three patients with mediastinal masses who were initially diagnosed in People's Hospital of Shijiazhuang, China, between January 2014 and June 2022 and had complete clinical data and underwent surgical treatment at People's Hospital of Shijiazhuang were retrospectively analyzed. Result The age of patients with thymoma alone was significantly older than that of thymoma patients complicated with MG. The number of female patients was slightly more than males for both groups. Proportions of type A, AB, B1, B2, and B3 thymomas in Group-A were 0.77, 11.54, 11.51, 33.85, and 31.54%, respectively, and the proportions in Group-B were 9.68, 22.58, 12.90, 32.26, and 22.58%. The size of tumors in patients with thymoma alone was larger than that of patients with thymoma complicated with MG. The proportion of patients with tumor size of more than 10 cm in the thymoma alone group was significantly higher than that in the MG group. There were no relapses in patients with type A disease and relapses were noted in a few patients with type B1, B2 and B3 diseases. The same survival rates were reported for the two groups. Conclusion MG rarely occurs in type A and type C diseases. The prognosis of thymoma with MG is similar to that of thymoma alone. The main causes of death may be myasthenia crisis in thymoma patients with MG and advanced tumor stage in patients with thymoma alone.
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Affiliation(s)
- Yaxuan Wang
- Yaxuan Wang, Department of Oncology, Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Guoyan Qi
- Guoyan Qi, Department of Oncology, Hebei Medical University, Shijiazhuang 050017, Hebei, China. Hebei Provincial Key Laboratory of Myasthenia Gravis, Shijiazhuang 050030, Hebei, China
| | - Ying Yang
- Ying Yang, Center of Treatment of Myasthenia Gravis, People’s Hospital of Shijiazhuang Affiliated to Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Hongxia Yang
- Hongxia Yang, Center of Treatment of Myasthenia Gravis, People’s Hospital of Shijiazhuang Affiliated to Hebei Medical University, Shijiazhuang 050017, Hebei, China
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3
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Liu T, Xia S. The Proteostasis of Thymic Stromal Cells in Health and Diseases. Protein J 2024; 43:447-463. [PMID: 38622349 DOI: 10.1007/s10930-024-10197-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2024] [Indexed: 04/17/2024]
Abstract
The thymus is the key immune organ for the development of T cells. Different populations of thymic stromal cells interact with T cells, thereby controlling the dynamic development of T cells through their differentiation and function. Proteostasis represents a balance between protein expression, folding, and modification and protein clearance, and its fluctuation usually depends at least partially on related protein regulatory systems for further survival and effects. However, in terms of the substantial requirement for self-antigens and their processing burden, increasing evidence highlights that protein regulation contributes to the physiological effects of thymic stromal cells. Impaired proteostasis may expedite the progression of thymic involution and dysfunction, accompanied by the development of autoimmune diseases or thymoma. Hence, in this review, we summarize the regulation of proteostasis within different types of thymic stromal cells under physiological and pathological conditions to identify potential targets for thymic regeneration and immunotherapy.
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Affiliation(s)
- Ting Liu
- Department of Immunology, School of Medicine, Jiangsu University, 301, Xuefu Road, Zhenjiang, Jiangsu, 212013, China
| | - Sheng Xia
- Department of Immunology, School of Medicine, Jiangsu University, 301, Xuefu Road, Zhenjiang, Jiangsu, 212013, China.
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Küffer S, Müller D, Marx A, Ströbel P. Non-Mutational Key Features in the Biology of Thymomas. Cancers (Basel) 2024; 16:942. [PMID: 38473304 DOI: 10.3390/cancers16050942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Thymomas (THs) are a unique group of heterogeneous tumors of the thymic epithelium. In particular, the subtypes B2 and B3 tend to be aggressive and metastatic. Radical tumor resection remains the only curative option for localized tumors, while more advanced THs require multimodal treatment. Deep sequencing analyses have failed to identify known oncogenic driver mutations in TH, with the notable exception of the GTF2I mutation, which occurs predominantly in type A and AB THs. However, there are multiple alternative non-mutational mechanisms (e.g., perturbed thymic developmental programs, metabolism, non-coding RNA networks) that control cellular behavior and tumorigenesis through the deregulation of critical molecular pathways. Here, we attempted to show how the results of studies investigating such alternative mechanisms could be integrated into a current model of TH biology. This model could be used to focus ongoing research and therapeutic strategies.
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Affiliation(s)
- Stefan Küffer
- Institute of Pathology, University Medical Center Göttingen, University of Göttingen, 37075 Göttingen, Germany
| | - Denise Müller
- Institute of Pathology, University Medical Center Göttingen, University of Göttingen, 37075 Göttingen, Germany
| | - Alexander Marx
- Institute of Pathology, University Medical Center Göttingen, University of Göttingen, 37075 Göttingen, Germany
| | - Philipp Ströbel
- Institute of Pathology, University Medical Center Göttingen, University of Göttingen, 37075 Göttingen, Germany
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5
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Elm L, Levidou G. The Molecular Landscape of Thymic Epithelial Tumors: A Comprehensive Review. Int J Mol Sci 2024; 25:1554. [PMID: 38338833 PMCID: PMC10855681 DOI: 10.3390/ijms25031554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Thymic epithelial tumors (TETs) are characterized by their extreme rarity and variable clinical presentation, with the inadequacy of the use of histological classification alone to distinguish biologically indolent from aggressive cases. The utilization of Next Generation Sequencing (NGS) to unravel the intricate genetic landscape of TETs could offer us a comprehensive understanding that is crucial for precise diagnoses, prognoses, and potential therapeutic strategies. Despite the low tumor mutational burden of TETS, NGS allows for exploration of specific genetic signatures contributing to TET onset and progression. Thymomas exhibit a limited mutational load, with prevalent GTF2I and HRAS mutations. On the other hand, thymic carcinomas (TCs) exhibit an elevated mutational burden, marked by frequent mutations in TP53 and genes associated with epigenetic regulation. Moreover, signaling pathway analyses highlight dysregulation in crucial cellular functions and pathways. Targeted therapies, and ongoing clinical trials show promising results, addressing challenges rooted in the scarcity of actionable mutations and limited genomic understanding. International collaborations and data-sharing initiatives are crucial for breakthroughs in TETs research.
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Affiliation(s)
| | - Georgia Levidou
- Department of Pathology, Nuremberg Clinic, Paracelsus Medical University, 90419 Nuremberg, Germany;
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Alqaidy D. Thymoma: An Overview. Diagnostics (Basel) 2023; 13:2982. [PMID: 37761349 PMCID: PMC10527963 DOI: 10.3390/diagnostics13182982] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/15/2023] [Accepted: 09/16/2023] [Indexed: 09/29/2023] Open
Abstract
Thymomas are considered one of the most prevalent types of mediastinal epithelial tumors, which frequently develop in the anterior mediastinum. Due to their rarity, these tumors' nomenclature, classification, and staging are likely to be the subject of debate and argument for most expert pathologists. Furthermore, the significance of thymoma histologic classifications have been debated over the past twenty years. While certain advocates argue that staging at the time of diagnosis is more significant, others believe that histologic subtyping has a significant impact on how patients behave clinically. In this review, we will focus on some of the challenges that diagnostic surgical pathologists may experience while evaluating the histopathology of thymomas and staging these tumors. We will additionally glance over the clinical characteristics of these distinct tumors and the current management strategy.
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Affiliation(s)
- Doaa Alqaidy
- Department of Pathology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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7
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Randhawa JS, Kim LS, Aguilar C, Phan AT, Abou-El-Hassan H, Sovory LH. Atypical Seropositive Striated Muscle Antibody Myasthenia Gravis Presentation With Metastatic B1 Thymoma: A Rare Case. Cureus 2023; 15:e35221. [PMID: 36968847 PMCID: PMC10032554 DOI: 10.7759/cureus.35221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2023] [Indexed: 02/22/2023] Open
Abstract
The association between myasthenia gravis (MG) and thymomas is well-documented. Thymomas are rare epithelial cell tumors that arise from the thymus gland and occur in the mediastinum. Myasthenia gravis is a neuromuscular disorder that causes skeletal muscle weakness due to the presence of anti-acetylcholinesterase antibodies. Roughly 60% of thymomas are associated with MG, while only 10% of MG patients have thymomas. We present an atypical presentation of myasthenia gravis with an associated unusual metastatic thymoma. This case is of a young, previously healthy 26-year-old male with no previous medical history who presented with non-specific symptoms of fatigue, diarrhea, abdominal pain, back pain, blurry vision, and unintended weight loss. He underwent treatment with intravenous immunoglobulins (IVIG), had two surgical resections of the thymoma, and ultimately received radiotherapy. Based on our experience with this case, diagnosing myasthenia gravis by testing for specific muscle antibodies for patients with ptosis in the setting of non-specific complaints, including fatigue, vomiting, diarrhea, and abdominal or back pain, should be considered. Routine imaging should follow with a chest computed tomography to screen for thymomas if the specific anti-titin and anti-ryanodine receptor (anti-RyR) muscle antibodies are positive and myasthenia gravis is suspected. If a thymoma is confirmed, it is best to confirm; and mass characterizes with chest magnetic resonance imaging. A treatment approach of IVIG followed by surgical resection and possible debulking if the lesion is deemed metastatic could also be considered thereafter, especially in young patients with few comorbidities. Treatment with Pyridostigmine 30 mg twice daily for 25 days post-surgically and radiation for treatment of any remaining unresectable tumor should also be considered.
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8
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Kuhn E, Pescia C, Mendogni P, Nosotti M, Ferrero S. Thymic Epithelial Tumors: An Evolving Field. Life (Basel) 2023; 13:life13020314. [PMID: 36836670 PMCID: PMC9964105 DOI: 10.3390/life13020314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/24/2023] Open
Abstract
Despite their rarity, thymic epithelial tumors (TETs) have attracted much interest over the years, leading to an impressive number of histological and staging classifications. At present, TETs are divided by the WHO classification into four main subtypes: type A, type AB, and type B thymomas (subdivided into B1, B2, and B3), and thymic carcinomas, going from the more indolent to the most aggressive ones. Among many debated staging proposals, the TNM and the Masaoka-Koga staging systems have been widely accepted and used in routine practice. The four-tiered histological classification is symmetrically mirrored by the molecular subgrouping of TETs, which identifies an A-like and an AB-like cluster, with frequent GTF2I and HRAS mutations; an intermediate B-like cluster, with a T-cell signaling profile; and a carcinoma-like cluster comprising thymic carcinomas with frequent CDKN2A and TP53 alterations and a high tumor molecular burden. Molecular investigations have opened the way to tailored therapies, such as tyrosine kinase inhibitors targeting KIT, mTOR, and VEGFR, and immune-checkpoints that have been adopted as second-line systemic treatments. In this review, we discuss the crucial events that led to the current understanding of TETs, while disclosing the next steps in this intriguing field.
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Affiliation(s)
- Elisabetta Kuhn
- S.C. Anatomia Patologica, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milano, Italy
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, 20122 Milano, Italy
- Correspondence: ; Tel.: +39-025-032-0564
| | - Carlo Pescia
- S.C. Anatomia Patologica, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milano, Italy
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, 20122 Milano, Italy
| | - Paolo Mendogni
- S.C. Chirurgia Toracica e Trapianti di Polmone, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milano, Italy
| | - Mario Nosotti
- S.C. Chirurgia Toracica e Trapianti di Polmone, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milano, Italy
- Dipartimento di Patofisiologia Medico-Chirurgica e dei Trapianti, Università degli Studi di Milano, 20122 Milano, Italy
| | - Stefano Ferrero
- S.C. Anatomia Patologica, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milano, Italy
- Dipartimento di Scienze Biomediche, Chirurgiche ed Odontoiatriche, Università degli Studi di Milano, 20122 Milano, Italy
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Shen XY, Shi SH, Li H, Wang CC, Zhang Y, Yu H, Li YB, Liu B. The role of Gadd45b in neurologic and neuropsychiatric disorders: An overview. Front Mol Neurosci 2022; 15:1021207. [PMID: 36311022 PMCID: PMC9606402 DOI: 10.3389/fnmol.2022.1021207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/21/2022] [Indexed: 11/26/2022] Open
Abstract
Growth arrest and DNA damage-inducible beta (Gadd45b) is directly intertwined with stress-induced DNA repair, cell cycle arrest, survival, and apoptosis. Previous research on Gadd45b has focused chiefly on non-neuronal cells. Gadd45b is extensively expressed in the nervous system and plays a critical role in epigenetic DNA demethylation, neuroplasticity, and neuroprotection, according to accumulating evidence. This article provided an overview of the preclinical and clinical effects of Gadd45b, as well as its hypothesized mechanisms of action, focusing on major psychosis, depression, autism, stroke, seizure, dementia, Parkinson’s disease, and autoimmune diseases of the nervous system.
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Affiliation(s)
- Xiao-yue Shen
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shu-han Shi
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Heng Li
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Cong-cong Wang
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Yao Zhang
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Hui Yu
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Yan-bin Li
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- Yan-bin Li,
| | - Bin Liu
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
- *Correspondence: Bin Liu,
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Prostate Cancer Secretome and Membrane Proteome from Pten Conditional Knockout Mice Identify Potential Biomarkers for Disease Progression. Int J Mol Sci 2022; 23:ijms23169224. [PMID: 36012492 PMCID: PMC9409251 DOI: 10.3390/ijms23169224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer (PCa) is the second most common cause of mortality among men. Tumor secretome is a promising strategy for understanding the biology of tumor cells and providing markers for disease progression and patient outcomes. Here, transcriptomic-based secretome analysis was performed on the PCa tumor transcriptome of Genetically Engineered Mouse Model (GEMM) Pb-Cre4/Ptenf/f mice to identify potentially secreted and membrane proteins—PSPs and PMPs. We combined a selection of transcripts from the GSE 94574 dataset and a list of protein-coding genes of the secretome and membrane proteome datasets using the Human Protein Atlas Secretome. Notably, nine deregulated PMPs and PSPs were identified in PCa (DMPK, PLN, KCNQ5, KCNQ4, MYOC, WIF1, BMP7, F3, and MUC1). We verified the gene expression patterns of Differentially Expressed Genes (DEGs) in normal and tumoral human samples using the GEPIA tool. DMPK, KCNQ4, and WIF1 targets were downregulated in PCa samples and in the GSE dataset. A significant association between shorter survival and KCNQ4, PLN, WIF1, and F3 expression was detected in the MSKCC dataset. We further identified six validated miRNAs (mmu-miR-6962-3p, mmu-miR- 6989-3p, mmu-miR-6998-3p, mmu-miR-5627-5p, mmu-miR-15a-3p, and mmu-miR-6922-3p) interactions that target MYOC, KCNQ5, MUC1, and F3. We have characterized the PCa secretome and membrane proteome and have spotted new dysregulated target candidates in PCa.
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11
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Sivayoganathan T, Kuruvilla S, Cecchini MJ, Baranova K. A Case of Li-Fraumeni Associated Thymoma. Cureus 2022; 14:e24602. [PMID: 35664418 PMCID: PMC9148616 DOI: 10.7759/cureus.24602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2022] [Indexed: 11/05/2022] Open
Abstract
Thymomas are among the most common cancers of the anterior mediastinum. They rarely occur in patients with Li-Fraumeni syndrome (LFS), a hereditary syndrome that predisposes individuals to cancer and is characterized by mutations in the tumor suppressor encoding gene TP53. Here we describe a case of primary thymoma in a woman diagnosed with LFS. We cover the initial presentation and diagnosis, radiological findings, histopathological examination, and management of thymoma. In addition, we review p53 physiology and LFS pathophysiology to explore how TP53 expression might differ between the majority of thymomas and in thymomas associated with LFS. This altered pathophysiology may affect management and prognosis due to emerging evidence of increased resistance to conventional treatment, which suggests a need for close monitoring and consideration of novel treatment strategies such as programmed death-ligand 1 (PD-L1) inhibitors.
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12
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Jing Z, Liu Q, Xie W, Wei Y, Liu J, Zhang Y, Zuo W, Lu S, Zhu Q, Liu P. NCAPD3 promotes prostate cancer progression by up-regulating EZH2 and MALAT1 through STAT3 and E2F1. Cell Signal 2022; 92:110265. [DOI: 10.1016/j.cellsig.2022.110265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/30/2021] [Accepted: 01/20/2022] [Indexed: 11/03/2022]
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Zhan S, Siu J, Wang Z, Yu H, Bezabeh T, Deng Y, Du W, Fei P. Focal Point of Fanconi Anemia Signaling. Int J Mol Sci 2021; 22:12976. [PMID: 34884777 PMCID: PMC8657418 DOI: 10.3390/ijms222312976] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/26/2021] [Accepted: 11/26/2021] [Indexed: 12/11/2022] Open
Abstract
Among human genetic diseases, Fanconi Anemia (FA) tops all with its largest number of health complications in nearly all human organ systems, suggesting the significant roles played by FA genes in the maintenance of human health. With the accumulated research on FA, the encoded protein products by FA genes have been building up to the biggest cell defense signaling network, composed of not only 22+ FA proteins but also ATM, ATR, and many other non-FA proteins. The FA D2 group protein (FANCD2) and its paralog form the focal point of FA signaling to converge the effects of its upstream players in response to a variety of cellular insults and simultaneously with downstream players to protect humans from contracting diseases, including aging and cancer. In this review, we update and discuss how the FA signaling crucially eases cellular stresses through understanding its focal point.
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Affiliation(s)
- Sudong Zhan
- University of Hawaii Cancer Center, University of Hawaii, Honolulu, HI 96813, USA; (S.Z.); (Z.W.); (H.Y.)
| | - Jolene Siu
- Student Research Experience Program of University of Hawaii, Honolulu, HI 96822, USA;
| | - Zhanwei Wang
- University of Hawaii Cancer Center, University of Hawaii, Honolulu, HI 96813, USA; (S.Z.); (Z.W.); (H.Y.)
| | - Herbert Yu
- University of Hawaii Cancer Center, University of Hawaii, Honolulu, HI 96813, USA; (S.Z.); (Z.W.); (H.Y.)
| | - Tedros Bezabeh
- Department of Chemistry, University of Guam, Mangilao, GU 96923, USA;
| | - Youping Deng
- Department of Quantitative Health Sciences, John A. Burns School of Medicine, University of Hawaii, Honolulu, HI 96813, USA;
| | - Wei Du
- Division of Hematology and Oncology, University of Pittsburgh School of Medicine, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA;
| | - Peiwen Fei
- University of Hawaii Cancer Center, University of Hawaii, Honolulu, HI 96813, USA; (S.Z.); (Z.W.); (H.Y.)
- Student Research Experience Program of University of Hawaii, Honolulu, HI 96822, USA;
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14
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Zhuang J, Guan M, Liu M, Liu Y, Yang S, Hu Z, Lai F, He F. Immune-Related Molecular Profiling of Thymoma With Myasthenia Gravis. Front Genet 2021; 12:756493. [PMID: 34777476 PMCID: PMC8580862 DOI: 10.3389/fgene.2021.756493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/15/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Approximately 50% of thymoma patients also show myasthenia gravis (MG), which is an autoimmune disease; however, the pathogenesis of MG-associated thymoma remains elusive. Our aim was to investigate immune-related lncRNA profiles of a set of candidate genes for better understanding of the molecular mechanism underlying the pathogenesis of thymoma with or without MG. Methods: Molecular profiles of thymoma with or without MG were downloaded from The Cancer Genome Atlas, and Pearson's correlation analysis was performed to identify immune-related lncRNAs. T test was used to examine the differential expression and differential methylation between thymoma patients with or without MG. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were performed to predict the function of target genes of immune-related lncRNAs. Results: Analyses of the 87 thymoma samples with complete MG information revealed that 205 mRNAs and 56 lncRNAs showed up-regulated expression in thymoma with MG patients, while 458 mRNAs and 84 lncRNAs showed down-regulated expression. The methylation level of three immune-related lncRNAs (AP000787.1, AC004943.1, WT1-AS, FOXG1-AS1) was significantly decreased in thymoma tissues, and the methylation level of these immune-related lncRNAs (WT1-AS: Cor = 0.368, p < 0.001; FOXG1-AS1: Cor = 0.288, p < 0.01; AC004943.1: Cor = -0.236, p < 0.05) correlated with their expression. GO and KEGG pathway analysis revealed that targets of the immune-related lncRNA FOXG1-AS1 were enriched in small GTPase binding and herpes simplex virus 1 infection. Transcription coregulator activity and cell cycle were the most enriched pathways for targets of lncRNA AC004943.1. LncRNA WT1-AS targets were most enriched in actin binding and axon guidance. Conclusion: Our results revealed the immune-related molecular profiling of thymoma with MG and without MG and identified key pathways involved in the underlying molecular mechanism of thymoma-related MG. These findings provide insights for further research of potential markers for thymoma-related MG.
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Affiliation(s)
- Jinman Zhuang
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.,Fujian Digital Tumor Data Research Center, Fuzhou, China
| | - Maohao Guan
- Department of Thoracic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Maolin Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.,Fujian Digital Tumor Data Research Center, Fuzhou, China
| | - Yuhang Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.,Fujian Digital Tumor Data Research Center, Fuzhou, China
| | - Shuyan Yang
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.,Fujian Digital Tumor Data Research Center, Fuzhou, China
| | - Zhijian Hu
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.,Fujian Digital Tumor Data Research Center, Fuzhou, China
| | - Fancai Lai
- Department of Thoracic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Fei He
- Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China.,Fujian Provincial Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, China.,Fujian Digital Tumor Data Research Center, Fuzhou, China
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15
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Ke J, Du X, Cui J, Yu L, Li H. LncRNA and mRNA expression associated with myasthenia gravis in patients with thymoma. Thorac Cancer 2021; 13:15-23. [PMID: 34773374 PMCID: PMC8720629 DOI: 10.1111/1759-7714.14201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 11/27/2022] Open
Abstract
Objective Pathological alterations of the thymus are observed in the majority of patients with myasthenia gravis (MG). To explore the potential mechanisms of these alterations, we performed a transcriptome analysis and measured co‐expression of aberrant long non‐coding RNAs (lncRNAs) and messenger RNAs (mRNAs). Methods RNA was extracted from eight patients with thymoma, five of whom had MG. Transcriptome profiles were acquired through mRNA and lncRNA microarray analysis. Quantitative reverse transcription polymerase chain reaction was used to verify the results of the microarray analysis. LncRNAs co‐expressed with mRNA were analyzed with Pearson's coefficient. Next, cis‐regulated and trans‐regulated target genes were predicted. The functions of aberrant lncRNAs were explored on the basis of Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses of target mRNAs. Results The comparative microarray analysis identified 4360 lncRNAs and 2545 mRNAs with significant differential expression. The most significant GO enrichment terms were phosphoric ester hydrolase activity, phosphatase activity, and hydrolase activity, which were assigned as molecular functions. Regulation of endosome size was the most significant GO enrichment term assigned as a biological process, and Golgi apparatus was the most significant GO enrichment term assigned as cellular component. The reliability prediction terms of KEGG included calcium signaling pathway, glycosphingolipid biosynthesis, and caffeine metabolism. Conclusion MG‐positive thymoma is associated with overactive biological processes and molecular functions, especially dephosphorylation and hydrolysis, which may affect thymocyte survival during selection in the thymus.
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Affiliation(s)
- Ji Ke
- Department of Thoracic Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Xin Du
- Department of Thoracic Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Jian Cui
- Department of Thoracic Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Lei Yu
- Department of Thoracic Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Hui Li
- Department of Thoracic Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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16
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Gene expression profiles of two testicular somatic cell lines respond differently to 4-nitrophenol mediating vary reproductive toxicity. Toxicology 2021; 463:152991. [PMID: 34673133 DOI: 10.1016/j.tox.2021.152991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 10/04/2021] [Accepted: 10/13/2021] [Indexed: 11/20/2022]
Abstract
4-Nitrophenol (PNP) has been extensively used in manufacturing for several decades. Its toxic effects on the male reproductive system have been reported, but the underlying mechanisms remain unclear. In this study, we utilized two testicular somatic cell lines (TM3 and TM4 cells) to explore the possible toxic effects of PNP on the male reproductive system. The activity of the cells after exposure to different doses of PNP (0.01, 0.1, 1, 10 and 100 μM) was evaluated. PNP treatment at 10 μM significantly inhibited cell viability, and 10 μM PNP was thus selected for subsequent experiments. Although PNP (10 μM) inhibited cell proliferation, promoted cell apoptosis, and changed the cell cycle distribution and ultrastructure in both types of cells, these effects were more significant in the TM4 cells. In addition, an Agilent mouse mRNA array was used to identify the gene expression differences between the control and PNP (10 μM) exposed TM3 and TM4 cells. The microarray analysis identified 67 and 1372 differentially expressed genes mainly concentrated in endothelial cell morphogenesis and anatomical structure development in TM3 cells and associated with cardiovascular system development and circulatory system development in TM4 cells. Moreover, a pathway analysis revealed that PNP not only predominately affected meiotic recombination and meiosis in TM3 cells, but also influenced axon guidance and developmental biology in TM4 cells. These results suggest that TM3 and TM4 cells exhibit different responses to PNP, which might mediate different toxic mechanisms.
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17
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Du X, Yu L, Yang L, Cao D, Zhang Y. [Expression and Diagnostic Value of NPTX1 in Thymoma Patients]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2021; 24:1-6. [PMID: 33478183 PMCID: PMC7849031 DOI: 10.3779/j.issn.1009-3419.2021.102.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Thymomas are the most common primary malignant tumors of anterior mediastinal. However, there are no specific laboratory indicator for the diagnosis the diagnosis of thymoma. The aim of this study was to screen out a tumor marker for diagnosis of thymoma by mRNA microarray analysis and confirmed it. METHODS By mRNA microarray analysis of 31 thymomas and peritumoral thymic tissues, we found that the transcription level of neuronal pentraxin 1 (NPTX1) gene was up-regulated more than 4 times in thymomas. To further verify the above results, we detected the transcription and expression level of NPTX1 in 60 thymoma and 30 thymic cyst patients by quantitative Real-Time polymerase chain reaction (PCR), immunohistochemistry and enzyme-linked immunosorbent assay (ELISA). Furthermore, the diagnostic value of NPTX1 in thymoma by receiver operating characteristic curve (ROC) was analyzed. RESULTS The transcription level of NPTX1 mRNA in thymoma tissues was significantly higher than that in the thymic tissues of control group [(2.88±1.02) vs (1.35±0.47), P<0.001); The expression level of NPTX1 in thymoma tissues was significantly higher than that in the thymic tissues of control group (2 vs 1, P<0.001); The preoperative serum level of NPTX1 protein in thymoma patients were significantly higher than that in the thymic cyst patients of control group [(1,018.29±209.38) pg/mL vs (759.95±66.02) pg/mL, P<0.001]; At the threshold of 842.22 pg/mL, sensitivity and specificity of NPTX1 as a serologic marker were 85.00% and 93.33%, respectively for thymoma. ROC showed that the area the under curve (AUC) of NPTX1 was 0.902. CONCLUSIONS NPTX1 was highly expressed in thymoma patients, and had diagnostic value for thymoma.
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Affiliation(s)
- Xin Du
- Department of Thoracic Surgery, Beijing Tongren Hospital,
Capital Medical University, Beijing 100730, China
| | - Lei Yu
- Department of Thoracic Surgery, Beijing Tongren Hospital,
Capital Medical University, Beijing 100730, China
| | - Ling Yang
- Central Laboratory, Beijing Tongren Hospital,
Capital Medical University, Beijing 100730, China
| | - Dingfang Cao
- Department of Pathology, Beijing Tongren Hospital,
Capital Medical University, Beijing 100730, China
| | - Ying Zhang
- Department of Pathology, Beijing Tongren Hospital,
Capital Medical University, Beijing 100730, China
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18
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Liu D, Zhang P, Zhao J, Yang L, Wang W. Identification of Molecular Characteristics and New Prognostic Targets for Thymoma by Multiomics Analysis. BIOMED RESEARCH INTERNATIONAL 2021; 2021:5587441. [PMID: 34104648 PMCID: PMC8159640 DOI: 10.1155/2021/5587441] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/16/2021] [Accepted: 04/01/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Thymoma is a heterogeneous tumor originated from thymic epithelial cells. The molecular mechanism of thymoma remains unclear. METHODS The expression profile, methylation, and mutation data of thymoma were obtained from TCGA database. The coexpression network was constructed using the variance of gene expression through WGCNA. Enrichment analysis using clusterProfiler R package and overall survival (OS) analysis by Kaplan-Meier method were carried out for the intersection of differential expression genes (DEGs) screened by limma R package and important module genes. PPI network was constructed based on STRING database for genes with significant impact on survival. The impact of key genes on the prognosis of thymoma was evaluated by ROC curve and Cox regression model. Finally, the immune cell infiltration, methylation modification, and gene mutation were calculated. RESULTS We obtained eleven coexpression modules, and three of them were higher positively correlated with thymoma. DEGs in these three modules mainly involved in MAPK cascade and PPAR pathway. LIPE, MYH6, ACTG2, KLF4, SULT4A1, and TF were identified as key genes through the PPI network. AUC values of LIPE were the highest. Cox regression analysis showed that low expression of LIPE was a prognostic risk factor for thymoma. In addition, there was a high correlation between LIPE and T cells. Importantly, the expression of LIPE was modified by methylation. Among all the mutated genes, GTF2I had the highest mutation frequency. CONCLUSION These results suggested that the molecular mechanism of thymoma may be related to immune inflammation. LIPE may be the key genes affecting prognosis of thymoma. Our findings will help to elucidate the pathogenesis and therapeutic targets of thymoma.
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Affiliation(s)
- Dazhong Liu
- Department of Thoracic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Pengfei Zhang
- Department of Thoracic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Jiaying Zhao
- Department of Thoracic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Lei Yang
- Department of Thoracic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Wei Wang
- Department of Thoracic Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
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19
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Lu H, Wang H, Sun P, Wang J, Li S, Xu T. MiR-522-3p inhibits proliferation and activation by regulating the expression of SLC31A1 in T cells. Cytotechnology 2021; 73:483-496. [PMID: 34149179 DOI: 10.1007/s10616-021-00472-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/22/2021] [Indexed: 11/25/2022] Open
Abstract
We investigated the role of miR-522-3p in thymoma-associated myasthenia gravis (TAMG), and the mechanism of action in T cells. The miR-522-3p expression in normal serum, non-thymoma MG patient serum and TAMG patient serum and tissues was detected by quantitative real-time PCR (qRT-PCR), respectively. We assessed miR-522-3p expression in Jurkat cells and human CD4+ T cells after activation by anti-CD3 and anti-CD28 using qRT-PCR. The viability, proliferation, cycle distribution and the levels of CD25, CD69, interleukin-2 (IL-2) and IL-10 in transfected Jurkat cells were detected by Cell counting kit-8, 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, qRT-PCR, respectively. Targeting relationships of miR-522-3p and SLC31A1 were predicted and validated by bioinformatics analysis and dual-luciferase reporter. The viability, proliferation, cycle distribution and the levels of SLC31A1, CD25, CD69, IL-2 and IL-10 in transfected Jurkat cells were detected by above methods and western blot. The miR-522-3p expression was declined in TAMG and activated T cells. MiR-522-3p inhibitor promoted cell viability, EdU positive cells, cycle progression, and the level of CD25, CD69, IL-2 and IL-10 in Jurkat cells, while the effect of miR-522-3p mimic was the opposite. SLC31A1 was targeted by miR-522-3p, and miR-522-3p inhibited SLC31A1 expression. Overexpressed SLC31A1 reversed the inhibitory effects of miR-522-3p mimic on cell viability, EdU positive cell, cycle progression, and the levels of IL-2 and IL-10 in transfected Jurkat cells. MiR-522-3p expression was down-regulated in TAMG, and miR-522-3p inhibited proliferation and activation by regulating SLC31A1 expression in T cells.
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Affiliation(s)
- Hengxiao Lu
- Department of Thoracic Surgery, Weifang People's Hospital, No.151 Guangwen Road, Kuiwen District, Weifang City, 261041 Shangdong Province China
| | - Hao Wang
- Department of Thoracic Surgery, Weifang People's Hospital, No.151 Guangwen Road, Kuiwen District, Weifang City, 261041 Shangdong Province China
| | - Peidao Sun
- Department of Thoracic Surgery, Changle People's Hospital, Weifang, China
| | - Jiang Wang
- Department of Thoracic Surgery, Weifang People's Hospital, No.151 Guangwen Road, Kuiwen District, Weifang City, 261041 Shangdong Province China
| | - Shuhai Li
- Department of Thoracic Surgery, Qilu Hospital, Cheeloo College of Medicine, Jinan, China
| | - Tongzhen Xu
- Department of Thoracic Surgery, Weifang People's Hospital, No.151 Guangwen Road, Kuiwen District, Weifang City, 261041 Shangdong Province China
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20
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Du X, Yu L, Li F, Yu Z, Yang XG, Jiang YX, Yu XT. Case Report: MDM4 Amplified in a Thymoma Patient With Autoimmune Enteropathy and Myocarditis. Front Endocrinol (Lausanne) 2021; 12:661316. [PMID: 34054730 PMCID: PMC8155580 DOI: 10.3389/fendo.2021.661316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/26/2021] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Thymoma is a type of mediastinal malignant tumors which always associated with autoimmune diseases. Although surgery is the predominant treatment method for thymoma, the pathogenesis of thymoma and thymoma-associated autoimmune diseases is still unknown. However, the case study here provided a possible pathogenesis and treatment to cure the thymoma with autoimmune enteropathy and myocarditis. CASE PRESENTATION A thymoma case with autoimmune enteropathy and myocarditis undergoing surgery was reported. The symptoms and laboratory results of the patient had dramatically fluctuated after tumor resection and gradually alleviated. The whole exome sequencing found MDM4 amplified in tumor cells. Immunohistochemistry indicated that thymoma cells were positive for MDM4. The result of drug sensitivity tests showed thymoma cells were highly sensitive to Nutlin-3a. CONCLUSION MDM4 could play an important role in the pathogenesis of this thymoma case with autoimmune enteropathy and myocarditis. This discovery may provide a novel idea of pathogenesis and treatment for thymoma and autoimmune diseases.
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21
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Blum TG, Misch D, Kollmeier J, Thiel S, Bauer TT. Autoimmune disorders and paraneoplastic syndromes in thymoma. J Thorac Dis 2020; 12:7571-7590. [PMID: 33447448 PMCID: PMC7797875 DOI: 10.21037/jtd-2019-thym-10] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Thymomas are counted among the rare tumour entities which are associated with autoimmune disorders (AIDs) and paraneoplastic syndromes (PNS) far more often than other malignancies. Through its complex immunological function in the context of the selection and maturation of T cells, the thymus is at the same time highly susceptible to disruptive factors caused by the development and growth of thymic tumours. These T cells, which are thought to develop to competent immune cells in the thymus, can instead adopt autoreactive behaviour due to the uncontrolled interplay of thymomas and become the trigger for AID or PNS affecting numerous organs and tissues within the human body. While myasthenia gravis is the most prevalent PNS in thymoma, numerous others have been described, be they related to neurological, cardiovascular, gastrointestinal, haematological, dermatological, endocrine or systemic disorders. This review article sheds light on the pathophysiology, epidemiology, specific clinical features and therapeutic options of the various forms as well as courses and outcomes of AID/PNS in association with thymomas. Whenever suitable and backed by the limited available evidence, the perspectives from both the thymoma and the affected organ/tissue will be highlighted. Specific issues addressed are the prognostic significance of thymectomy on myasthenia gravis and other thymoma-associated AID/PND and further the impact and safety of immunotherapies on AID and PND relating to thymomas.
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Affiliation(s)
- Torsten Gerriet Blum
- Department of Pneumology, Lungenklinik Heckeshorn, Helios Klinikum Emil von Behring, Berlin, Germany
| | - Daniel Misch
- Department of Pneumology, Lungenklinik Heckeshorn, Helios Klinikum Emil von Behring, Berlin, Germany
| | - Jens Kollmeier
- Department of Pneumology, Lungenklinik Heckeshorn, Helios Klinikum Emil von Behring, Berlin, Germany
| | - Sebastian Thiel
- Department of Pneumology, Lungenklinik Heckeshorn, Helios Klinikum Emil von Behring, Berlin, Germany
| | - Torsten T Bauer
- Department of Pneumology, Lungenklinik Heckeshorn, Helios Klinikum Emil von Behring, Berlin, Germany
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Jovanovic D, Markovic J, Ceriman V, Peric J, Pavlovic S, Soldatovic I. Correlation of genomic alterations and PD-L1 expression in thymoma. J Thorac Dis 2020; 12:7561-7570. [PMID: 33447447 PMCID: PMC7797854 DOI: 10.21037/jtd-2019-thym-13] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Thymic epithelial tumors (TETs) include several anterior mediastinal malignant tumours: thymomas, thymic carcinomas and thymic neuroendocrine cancers. There is significant variety in the biologic features and clinical course of TETs and many attempts have been made to identify target genes for successful therapy of TETs. Next generation sequencing (NGS) represents a huge advancement in diagnostics and these new molecular technologies revealed that thymic neoplasms have the lowest tumor mutation burden among all adult malignant tumours with a different pattern of molecular aberrations in thymomas and thymic carcinomas. As for the PD-L1 expression in tumor cells in thymoma and thymic carcinoma, it varies a lot in published studies, with findings of PD-L1 expression from 23% to 92% in thymoma and 36% to 100% in thymic carcinoma. When correlated PD-L1 expression with disease stage some controversial results were obtained, with no association with tumor stage in most studies. This is, at least in part, explained by the fact that several diverse PD-L1 immunohistochemical tests were used in each trial, with four different antibodies (SP142, SP263, 22C3, and 28-8), different definition of PD-L1 positivity and cutoff values throughout the studies as well. There is a huge interest in using genomic features to produce predictive genomic-based immunotherapy biomarkers, particularly since recent data suggest that certain tumor-specific genomic alterations, either individually or in combination, appear to influence immune checkpoint activity and better responses as the outcome, so as such in some cancer types they may complement existing biomarkers to improve the selection criteria for immunotherapy.
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Affiliation(s)
| | - Jelena Markovic
- Pathology Department, Clinical Center of Serbia, Belgrade, Serbia
| | - Vesna Ceriman
- Clinic for Pulmonology, Clinical Center of Serbia, Belgrade, Serbia
| | - Jelena Peric
- Institute of Molecular Genetics and Genetic Engineering University of Belgrade, Belgrade, Serbia
| | - Sonja Pavlovic
- Institute of Molecular Genetics and Genetic Engineering University of Belgrade, Belgrade, Serbia
| | - Ivan Soldatovic
- Institute of Medical Statistics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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23
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陈 博, 李 欣, 王 卓, 徐 雅. [Ectopic cervical thymoma misdiagnosed as thyroid nodule:a case report]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2020; 34:947-949. [PMID: 33254305 PMCID: PMC10128505 DOI: 10.13201/j.issn.2096-7993.2020.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Indexed: 04/30/2023]
Affiliation(s)
- 博婕 陈
- 上海交通大学医学院附属仁济医院头颈外科(上海,200001)
| | - 欣洋 李
- 上海交通大学医学院附属仁济医院头颈外科(上海,200001)
| | - 卓颖 王
- 上海交通大学医学院附属仁济医院头颈外科(上海,200001)
| | - 雅男 徐
- 上海交通大学医学院附属仁济医院头颈外科(上海,200001)
- 徐雅男,
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Ruan X, Lu X, Gao J, Jiang L, Zhu Y, Zhou Y, Meng J, Yan H, Yan F, Wang F. Multiomics data reveals the influences of myasthenia gravis on thymoma and its precision treatment. J Cell Physiol 2020; 236:1214-1227. [PMID: 32700803 DOI: 10.1002/jcp.29928] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 07/01/2020] [Indexed: 12/14/2022]
Abstract
Thymoma is a rare characterized by a unique association with autoimmune diseases, especially myasthenia gravis (MG). However, little is known about the molecular characteristics of MG-associated thymoma individuals. We aim to examine the influences of MG on thymoma by analyzing multiomics data. A total of 105 samples with thymoma was analyzed from TCGA and these samples were divided into subgroups with MG (MGT) or without MG (MGF) according to clinical information. We then characterized the differential gene expression, pathway activity, somatic mutation frequency, and likelihood of responding to chemotherapies and immunotherapies of the two identified subgroups. MGT subgroup was characterized by elevated inflammatory responses and metabolically related pathways, whereas the MGF subgroup was predicted to be more sensitive to chemotherapy and presented with mesenchymal characteristics. More copy number amplifications and deletions were observed in MGT, whereas GTF2I mutations occur at significantly higher frequencies in MGF. Two molecular subtypes were further identified within MGF samples by unsupervised clustering where one subtype was enriched in TGF-β and WNT pathways with higher sensitivity to relevant targeted drugs but hardly respond to immunotherapy. For another subtype, a higher recurrence rate of thymoma and more likelihood of responding to immunotherapy were observed. Our findings presented a comprehensive molecular characterization of thymoma patients given the status of MG, and provided potential strategies to help individualized management and treatment.
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Affiliation(s)
- Xinjia Ruan
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiaofan Lu
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jun Gao
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Liyun Jiang
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China.,Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yue Zhu
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yujie Zhou
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Institute of Digestive Disease, Shanghai Jiao Tong University, Shanghai, China
| | - Jialin Meng
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Institute of Urology and Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, Anhui, China.,Department of Urology, University of Rochester Medical Center, Rochester, New York
| | - Hangyu Yan
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Fangrong Yan
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Fei Wang
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, China
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25
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Peric J, Samaradzic N, Skodric Trifunovic V, Tosic N, Stojsic J, Pavlovic S, Jovanovic D. Genomic profiling of thymoma using a targeted high-throughput approach. Arch Med Sci 2020; 20:909-917. [PMID: 39050176 PMCID: PMC11264071 DOI: 10.5114/aoms.2020.96537] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 12/21/2019] [Indexed: 07/27/2024] Open
Abstract
Introduction Thymomas and thymic carcinoma (TC) are the most common neoplasms localised in the thymus. These diseases are poorly understood, but progress made in next-generation sequencing (NGS) technology has provided novel data on their molecular pathology. Material and methods Genomic DNA was isolated from formalin-fixed paraffin-embedded tumour tissue. We investigated somatic variants in 35 thymoma patients using amplicon-based TruSeq Amplicon Cancer Panel (TSACP) that covers 48 cancer related genes. We also analysed three samples from healthy individuals by TSACP platform and 32 healthy controls using exome sequencing. Results The total number of detected variants was 4447, out of which 2906 were in the coding region (median per patient 83, range: 2-300) and 1541 were in the non-coding area (median per patient 44, range: 0-172). We identified four genes, APC, ATM, ERBB4, and SMAD4, having more than 100 protein-changing variants. Additionally, more than 70% of the analysed cases harboured protein-changing variants in SMAD4, APC, ATM, PTEN, KDR, and TP53. Moreover, this study revealed 168 recurrent variants, out of which 15 were shown to be pathogenic. Comparison to controls revealed that the variants we reported in this study were somatic thymoma-specific variants. Additionally, we found that the presence of variants in SMAD4 gene predicted shorter overall survival in thymoma patients. Conclusions The most frequently mutated genes in thymoma samples analysed in this study belong to the EGFR, ATM, and TP53 signalling pathways, regulating cell cycle check points, gene expression, and apoptosis. The results of our study complement the knowledge of thymoma molecular pathogenesis.
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Affiliation(s)
- Jelena Peric
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Natalija Samaradzic
- University Hospital of Pulmonology, Clinical Centre of Serbia, Belgrade, Serbia
| | - Vesna Skodric Trifunovic
- University Hospital of Pulmonology, Clinical Centre of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Natasa Tosic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Jelena Stojsic
- Department of Thoracopulmonary Pathology, Service of Pathology, Clinical Centre of Serbia, Serbia
| | - Sonja Pavlovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Dragana Jovanovic
- University Hospital of Pulmonology, Clinical Centre of Serbia, Belgrade, Serbia
- School of Medicine, University of Belgrade, Belgrade, Serbia
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Shen W, Cao Y, Wang X, Zhang P, Zhou Q. Invasive thymoma with intravascular growth into the great veins and right atrium: A case report. Thorac Cancer 2020; 11:1326-1329. [PMID: 32180340 PMCID: PMC7180703 DOI: 10.1111/1759-7714.13242] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 02/05/2023] Open
Abstract
Here, we present a case of invasive thymoma with intraluminal growth into the left and right brachiocephalic veins, superior vena cava and the right atrium. Resection of the mass, double partial upper lobe lobectomy and superior vena cava, and left and right brachiocephalic vein replacement were performed. Pathological diagnosis indicated a mixed histological pattern indicative of type B1 and type B2 thymoma, predominantly type B2 thymoma. The patient was well and without local recurrence or distal metastasis after 50 months of follow‐up.
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Affiliation(s)
- Wang Shen
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Cao
- Tianjin Medical University General Hospital, Tianjin, China
| | - Xinyun Wang
- Tianjin Medical University General Hospital, Tianjin, China
| | - Peng Zhang
- Tianjin Medical University General Hospital, Tianjin, China
| | - Qinghua Zhou
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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Rouquette I, Taranchon-Clermont E, Gilhodes J, Bluthgen MV, Perallon R, Chalabreysse L, De Muret A, Hofman V, Marx A, Parrens M, Secq V, Thomas de Montpreville V, Galateau-Salle F, Brousset P, Milia J, Girard N, Besse B, Molina TJ, Mazières J. Immune biomarkers in thymic epithelial tumors: expression patterns, prognostic value and comparison of diagnostic tests for PD-L1. Biomark Res 2019; 7:28. [PMID: 31827799 PMCID: PMC6894111 DOI: 10.1186/s40364-019-0177-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/01/2019] [Indexed: 12/18/2022] Open
Abstract
Background Immunotherapy is currently under investigation in B3 Thymoma (TB3) and Thymic Carcinoma (TC). PD-L1 expression has been evaluated on a limited number of patients with selected antibodies. We aimed to analyze cohort of TB3 and TC with a panel of antibodies to assess the prevalence of PD-L1 expression, its prognostic value and to set up a reproducible test. Methods We retrospectively studied 103 patients samples of FFPE histologically confirmed TB3 (n = 53) and TC (n = 50) by expert pathologists within the RYTHMIC national network. We compared PD-L1, PD1, CD8 and PD-L2 expression and performed correlation with tumor types and patients outcomes. Four PD-L1 antibodies were tested, three of them validated as companion tests in lung cancer, one tested on two automates on whole section of tumors. We evaluated the percentage and intensity of both epithelial and immune stained cells. Results TB3 epithelial cells had a higher and more diffuse expression of PD-L1 than TC regardless the antibodies tested (p < 0.0001). Three out of four antibodies targeting PD-L1 tested on the DAKO autostainer gave similar staining. Concordance between antibodies was lower for PD-L1 staining on immune cells with no significant difference between TB3 and TC except on E1L3N antibody. PD-L2 antibody stained no tumor epithelial cells. High PD-L1 expression was correlated with a better overall survival for TB3 and was not correlated with tumor staging. Conclusion Frequent PD-L1 expression, particularly in TB3, paves the way for immunotherapy in TET (Thymic Epithelial Tumor). Otherwise, we have set up three reproducible LDT (laboratory-developed test) for four PD-L1 antibodies.
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Affiliation(s)
| | | | - Julia Gilhodes
- 1IUCT-Oncopole, 1 Avenue Irène Joliot Curie, 31059 Toulouse, France
| | | | - Romain Perallon
- 1IUCT-Oncopole, 1 Avenue Irène Joliot Curie, 31059 Toulouse, France
| | - Lara Chalabreysse
- 3HCL, Hôpital Louis Pradel, 28 Avenue du Doyen Jean Lépine, 69500 Bron, France
| | - Anne De Muret
- Hôpital Trousseau, Avenue de la République, 37170 Chambray-lès-Tours, France
| | | | - Alexander Marx
- Institut de Pathologie, Universitaetsmedizin Mannheim, Heidelberg University, D-68167 Mannheim, Germany
| | - Marie Parrens
- 7Hôpital Haut-Levêque CHU, Avenue de Magellan, 33604 Pessac, France
| | - Veronique Secq
- 8APHM Hôpital Nord, Chemin des Bourrely, 13915 Marseille, France
| | | | | | - Pierre Brousset
- 1IUCT-Oncopole, 1 Avenue Irène Joliot Curie, 31059 Toulouse, France
| | - Julie Milia
- 11Hôpital Larrey, Centre Hospitalier Universitaire de Toulouse, 24 Chemin de Pouvourville, 31059 Toulouse, France
| | - Nicolas Girard
- 12Institut du Thorax Curie Montsouris, Institut Curie, 26, Rue d'Ulm, 75005 Paris, France
| | - Benjamin Besse
- 13Gustave Roussy, 114 rue E Vaillant, 94805 Villejuif, France.,14Paris-Sud university, Orsay, France
| | - Thierry Jo Molina
- Hôpital Necker Enfants Malades, AP-HP, Université de Paris, 149 Rue de Sèvres, 75015 Paris, France
| | - Julien Mazières
- 11Hôpital Larrey, Centre Hospitalier Universitaire de Toulouse, 24 Chemin de Pouvourville, 31059 Toulouse, France
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