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Yang Y, Yu Y, Fan Y, Li H. Evolving treatment landscape in thymic epithelial tumors: From mechanism to therapy. Biochim Biophys Acta Rev Cancer 2024; 1879:189145. [PMID: 38942215 DOI: 10.1016/j.bbcan.2024.189145] [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: 11/29/2023] [Revised: 06/19/2024] [Accepted: 06/23/2024] [Indexed: 06/30/2024]
Abstract
Thymic epithelial tumors (TETs) are rare neoplasms of the anterior mediastinum that arise from thymic epithelial cells. Although surgery is the preferred treatment for resectable TETs, the options for unresectable or recurrent advanced-stage TETs are limited beyond platinum-based chemotherapy. The evolving landscape of TET treatments is marked by significant advancements in targeted therapies and immunotherapies, particularly with anti-angiogenic agents and immune checkpoint inhibitors (ICIs). While monotherapies demonstrated certain efficacy, the development of combination strategies is vital for improving patient outcomes. This review consolidates progress in anti-angiogenic therapies and ICIs, emphasizing the evolution of combination therapies of TETs. Furtherly, we particularly discuss new first-line strategies based on these advancements and emphasizes exploring novel treatments like antibody-drug conjugates, immunomodulatory drugs and cytokine-based agents for TETs. Mechanistically, the molecular features of TETs integrated with clinical diagnosis and targeted therapy, and immunophenotyping of TETs along with its impact on the efficacy and safety of immunotherapy are discussed. Thus, this review systemizes the development in the treatment landscape of TETs, integrating the corresponding molecular and immune mechanisms, aiming to provide new references for the treatment of TETs.
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Affiliation(s)
- Yehao Yang
- Department of Thoracic Medical Oncology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Ying Yu
- Department of Thoracic Medical Oncology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Yun Fan
- Department of Thoracic Medical Oncology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China.
| | - Hui Li
- Department of Thoracic Medical Oncology, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China.
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2
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Sakane T, Haneda H, Okuda K. Insights into molecular aspects and targeted therapy of thymic carcinoma: a narrative review. MEDIASTINUM (HONG KONG, CHINA) 2024; 8:36. [PMID: 38881813 PMCID: PMC11176997 DOI: 10.21037/med-23-48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/21/2023] [Indexed: 06/18/2024]
Abstract
Background and Objective Thymic carcinomas are rare tumors derived from thymic epithelial cells. Owing to their rarity, the search for molecular biology has been conducted in combination with thymoma as one histological subtype, and only a few studies have exclusively focused on thymic carcinoma. Currently, no therapy is more effective than complete surgical resection, and the development of novel therapies, including targeted therapies, is hampered. In this review, we summarize the knowledge regarding altered genes and pathways in thymic carcinoma with recent preclinical and clinical targeted therapies. Methods We conducted a narrative review of the relevant English literature available in PubMed and Google Scholar on genomic characteristics and targeted therapies for thymic carcinoma. Key Content and Findings Although the literature consists of a relatively small series, it suggests that the frequently involved genes or pathways associated with thymic carcinoma are tumor suppressor genes, including TP53 and CDKN2A/B, and the receptor tyrosine kinase pathway. Targeted therapy demonstrated antitumor activity with encouraging results. However, potential predictive biomarkers have not been identified and the response to these therapies appears to be irrelevant to gene alterations. Conclusions Some studies have revealed the molecular characteristics of thymic carcinoma, although the results of these studies have shown a different pattern of gene alterations. The further accumulation of data would be helpful in revealing the genomic landscape and establishing molecular-targeted therapies.
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Affiliation(s)
- Tadashi Sakane
- Department of Thoracic Surgery, Nagoya City University West Medical Center, Nagoya, Japan
- Department of Thoracic and Pediatric Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroshi Haneda
- Department of Thoracic Surgery, Nagoya City University West Medical Center, Nagoya, Japan
| | - Katsuhiro Okuda
- Department of Thoracic and Pediatric Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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3
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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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4
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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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Maniar R, Loehrer PJ. What Have We Learned from Molecularly Informed Clinical Trials on Thymomas and Thymic Carcinomas-Current Status and Future Directions? Cancers (Basel) 2024; 16:416. [PMID: 38254905 PMCID: PMC10813974 DOI: 10.3390/cancers16020416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Thymic epithelial tumors (TETs), which include thymomas and thymic carcinomas, are a rare, heterogeneous group of malignancies that originate from the thymus gland. As an important organ of immune cell development, thymic tumors, particularly thymomas, are often associated with paraneoplastic autoimmune disorders. The advances in targeted therapies for both solid and hematologic malignancies have resulted in improved patient outcomes, including better and more durable efficacy and improved toxicity. Targeted therapies have also been investigated in the treatment of TETs, though the results have largely been modest. These have included somatostatin-receptor-targeting therapies, KIT- and EGFR-directed tyrosine kinase inhibitors, epigenetic modulators, anti-angiogenesis agents, and agents targeting the cell proliferation and survival pathways and cell cycle regulators. Numerous investigated treatments have failed or underperformed due to a lack of a strong biomarker of efficacy. Ongoing trials are attempting to expand on previous experiences, including the exploration of effective drugs in early-stage disease. Novel combination therapy strategies are also undergoing evaluation, with the goal of augmenting efficacy and understanding the toxicity while expanding the biomarkers of efficacy and safety. With advances in technology to improve target identification and drug delivery, old targets may become new opportunities, and the subsequently developed drugs may find their place in the treatment of thymic tumors.
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Affiliation(s)
| | - Patrick J. Loehrer
- Division of Hematology & Oncology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
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6
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Barachini S, Pardini E, Burzi IS, Sardo Infirri G, Montali M, Petrini I. Molecular and Functional Key Features and Oncogenic Drivers in Thymic Carcinomas. Cancers (Basel) 2023; 16:166. [PMID: 38201593 PMCID: PMC10778094 DOI: 10.3390/cancers16010166] [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: 11/07/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Thymic epithelial tumors, comprising thymic carcinomas and thymomas, are rare neoplasms. They differ in histology, prognosis, and association with autoimmune diseases such as myasthenia gravis. Thymomas, but not thymic carcinomas, often harbor GTF2I mutations. Mutations of CDKN2A, TP53, and CDKN2B are the most common thymic carcinomas. The acquisition of mutations in genes that control chromatin modifications and epigenetic regulation occurs in the advanced stages of thymic carcinomas. Anti-angiogenic drugs and immune checkpoint inhibitors targeting the PD-1/PD-L1 axis have shown promising results for the treatment of unresectable tumors. Since thymic carcinomas are frankly aggressive tumors, this report presents insights into their oncogenic drivers, categorized under the established hallmarks of cancer.
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Affiliation(s)
- Serena Barachini
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, 56126 Pisa, Italy
| | - Eleonora Pardini
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Irene Sofia Burzi
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Gisella Sardo Infirri
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
| | - Marina Montali
- Department of Translational Research and of New Surgical and Medical Technologies, University of Pisa, 56126 Pisa, Italy
| | - Iacopo Petrini
- Department of Clinical and Experimental Medicine, University of Pisa, 56126 Pisa, Italy
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Agrafiotis AC, Brandão M, Berghmans T, Durieux V, Jungels C. Immunotherapy and Targeted Therapies Efficacy in Thymic Epithelial Tumors: A Systematic Review. Biomedicines 2023; 11:2722. [PMID: 37893096 PMCID: PMC10604659 DOI: 10.3390/biomedicines11102722] [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: 08/21/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Thymic epithelial tumors (TET) are rare neoplasms of the anterior mediastinum. Surgery is the mainstay treatment for resectable TET, whereas systemic treatments are reserved for unresectable and metastatic tumors. The development of new treatments, such as immune checkpoint inhibitors (ICI) and targeted therapies, with promising results in other types of solid tumors, has led to the investigation of their potential efficacy in TET. The study of tumor microenvironments (TME) is another field of investigation that has gained the interest of researchers. Taking into account the complex structure of the thymus and its function in the development of immunity, researchers have focused on TME elements that could predict ICI efficacy. MATERIALS AND METHODS The primary objective of this systematic review was to investigate the efficacy of ICI in TET. Secondary objectives included the toxicity of ICI, the efficacy of targeted therapies in TET, and the evaluation of the elements of TME that may be predictive factors of ICI efficacy. A literature search was conducted in February 2023 using the Ovid Medline and SciVerse Scopus databases. RESULTS 2944 abstracts were retrieved, of which 31 were retained for the systematic review. Five phase II and one retrospective study assessed ICI efficacy. The overall response rate (ORR) varied from 0% to 34%. Median progression-free survival (PFS) ranged from 3.8 to 8.6 months, being lower in thymic carcinoma (TC) (3.8-4.2 months). Median overall survival (OS) ranged from 14.1 to 35.4 months. Treatment-related adverse events occurred in 6.6% to 27.3% of patients. Sixteen studies assessed targeted therapies. The most active molecule was lenvatinib, with 38% ORR in patients with TC while no activity was detected for imatinib, erlotinib plus bevacizumab, and saracatinib. Ten studies assessed TME elements that could predict ICI efficacy. Four studies focused on the tumor-infiltrating immune cells suggesting improved outcomes in patients with TC and high tumor-infiltrating lymphocyte densities. Another study showed that CD8+, CD20+, and CD204+ tumor-infiltrating immune cells in cancer stroma might be prognostic biomarkers in TC. Another study identified the immune-related long non-coding RNAs as a predictor of response to ICI. Tumor mutational burden was identified as a predictive factor of ICI efficacy in one study. CONCLUSIONS Despite study heterogeneity, this review shows that ICI could be a therapeutic option for selected patients with TET that are not amenable to curative radical treatment after first-line chemotherapy.
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Affiliation(s)
- Apostolos C. Agrafiotis
- Department of Thoracic and Vascular Surgery, Antwerp University Hospital, University of Antwerp, B-2650 Edegem, Belgium
- European Lung Cancer Working Party (ELCWP), 1070 Brussels, Belgium
| | - Mariana Brandão
- European Lung Cancer Working Party (ELCWP), 1070 Brussels, Belgium
- Thoracic Oncology Unit, Institut Jules Bordet, Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Thierry Berghmans
- European Lung Cancer Working Party (ELCWP), 1070 Brussels, Belgium
- Thoracic Oncology Unit, Institut Jules Bordet, Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Valérie Durieux
- European Lung Cancer Working Party (ELCWP), 1070 Brussels, Belgium
- Bibliothèque des Sciences de la Santé, Université libre de Bruxelles, 1070 Brussels, Belgium
| | - Christiane Jungels
- European Lung Cancer Working Party (ELCWP), 1070 Brussels, Belgium
- Department of Oncological Medicine, Institut Jules Bordet, Hôpital Universitaire de Bruxelles, Université Libre de Bruxelles, 1070 Brussels, Belgium
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8
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Zhang X, Zhang P, Cong A, Feng Y, Chi H, Xia Z, Tang H. Unraveling molecular networks in thymic epithelial tumors: deciphering the unique signatures. Front Immunol 2023; 14:1264325. [PMID: 37849766 PMCID: PMC10577431 DOI: 10.3389/fimmu.2023.1264325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/14/2023] [Indexed: 10/19/2023] Open
Abstract
Thymic epithelial tumors (TETs) are a rare and diverse group of neoplasms characterized by distinct molecular signatures. This review delves into the complex molecular networks of TETs, highlighting key aspects such as chromosomal abnormalities, molecular subtypes, aberrant gene mutations and expressions, structural gene rearrangements, and epigenetic changes. Additionally, the influence of the dynamic tumor microenvironment on TET behavior and therapeutic responses is examined. A thorough understanding of these facets elucidates TET pathogenesis, offering avenues for enhancing diagnostic accuracy, refining prognostic assessments, and tailoring targeted therapeutic strategies. Our review underscores the importance of deciphering TETs' unique molecular signatures to advance personalized treatment paradigms and improve patient outcomes. We also discuss future research directions and anticipated challenges in this intriguing field.
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Affiliation(s)
- Xiao Zhang
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Pengpeng Zhang
- Department of Lung Cancer Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Ansheng Cong
- Division of Nephrology, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, China
| | - Yanlong Feng
- Department of Thoracic Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hao Chi
- School of Clinical Medical Sciences, Southwest Medical University, Luzhou, China
| | - Zhijia Xia
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians University Munich, Munich, Germany
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, China
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9
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Dapergola A, Gomatou G, Trontzas I, Panagiotou E, Dimakakos E, Syrigos N, Kotteas E. Emerging therapies in thymic epithelial tumors (Review). Oncol Lett 2023; 25:84. [PMID: 36760515 PMCID: PMC9877504 DOI: 10.3892/ol.2023.13670] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 12/13/2022] [Indexed: 01/18/2023] Open
Abstract
Thymic epithelial tumors (TETs), including thymomas and thymic carcinomas, are rare malignancies arising from the thymus gland. The optimal management requires a multidisciplinary approach. Standard first-line systemic treatment involves cytotoxic chemotherapeutic regimens; however, alternative options for systemic treatment are required. Current research focuses on the unique profile of immune-related pathogenic mechanisms of TETs, involving an overlap with certain autoimmune phenotypes, as well as on determining the landscape of oncogenic molecular alterations and the role of tumor angiogenesis. The aim of the present review is to summarize the current clinical investigation on immunotherapy and targeted agents in the management of TETs. Regarding immune checkpoint inhibitors, efficacy results are promising in certain subsets of patients; however, caution is required concerning their toxicity. Anti-angiogenic agents, mainly potent small-molecule inhibitors, have demonstrated antitumor activity in TETs, whereas other targeted agents, including KIT inhibitors and epigenetic agents, are associated with encouraging, yet still modest results for unselected populations, in the absence of predictive biomarkers. Future research should focus on identifying predictive biomarkers for patients with TETs, and should implement multicenter collaborations and appropriate clinical trials tailored for rare tumor types.
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Affiliation(s)
- Athina Dapergola
- Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Georgia Gomatou
- Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, Athens 11527, Greece,Correspondence to: Dr Georgia Gomatou, Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, 152 Messogion Avenue, Athens 11527, Greece, E-mail:
| | - Ioannis Trontzas
- Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Emmanouil Panagiotou
- Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Evangelos Dimakakos
- Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Nikolaos Syrigos
- Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Elias Kotteas
- Oncology Unit, Third Department of Medicine, ‘Sotiria’ General Hospital for Diseases of The Chest, National and Kapodistrian University of Athens, Athens 11527, Greece
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Abu Zaid MI, Radovich M, Althouse S, Liu H, Spittler AJ, Solzak J, Badve S, Loehrer PJ. A phase II study of buparlisib in relapsed or refractory thymomas. Front Oncol 2022; 12:891383. [PMID: 36330484 PMCID: PMC9623263 DOI: 10.3389/fonc.2022.891383] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 08/05/2022] [Indexed: 10/19/2023] Open
Abstract
PURPOSE To investigate the efficacy and safety of buparlisib, an oral pan-PI3K inhibitor, in relapsed or refractory thymomas. METHODS This was a single center, single arm, open label phase II trial of buparlisib in patients with recurrent thymoma who have progressed after at least one prior line of treatment. The primary endpoint was objective response rate (complete response [CR] + partial response [PR]). Secondary endpoints included toxicity; progression free survival (PFS); overall survival (OS); disease control rate (DCR), i.e., the percentage of patients who achieve either PR or CR or stable disease [SD] for at least 4 months. RESULTS Between 10/13/2014 and 1/18/2017, 14 patients with stage IV disease were enrolled. Median age was 58y (23-74). 71% were females and 71% white. All patients had WHO B2 (29%) or B3 (71%) thymoma. Patients received buparlisib for a median of 4.5m (2-33). At a median follow up of 16.6m (2.4-31.3), onr patients (7%) achieved a PR. DCR was 50%. Median PFS was 11.1m (95% CI 2.9 - 18.8). Median OS, updated as of March, 2021 was 22.5m (10.7-31.3). Most common grade 3-4 adverse events related to buparlisib were dyspnea (21%), rash (14%), elevated transaminases (14%), cough (7%), pneumonitis (7%), anxiety (7%), fatigue (7%) and hyperglycemia (7%). Reasons for treatment discontinuation included progression of disease (n= 5), rash (n=4), pulmonary toxicity (n=3), sinusitis (n=1), and disseminated toxoplasmosis plus autoimmune cholangitis (n=1). As of 3/2021, 8 patients have died, 7 due to disease progression and 1 due to central nervous system toxoplasmosis and autoimmune cholangitis. CONCLUSION Buparlisib showed modest activity in patients with relapsed or refractory thymomas. Further investigation of PI3K pathway targeted therapy in thymoma is warranted. (clinicaltrials.gov ID: NCT02220855). CLINICAL TRIAL REGISTRATION clinicaltrials.gov, identifier (NCT02220855).
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Affiliation(s)
- Mohammad I. Abu Zaid
- Department of Medicine, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, United States
| | | | - Sandra Althouse
- Department of Medicine, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, United States
| | - Hao Liu
- Department of Medicine, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, United States
| | - Aaron J. Spittler
- Department of Medicine, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, United States
| | | | - Sunil Badve
- Department of Biostatistics, Emory University, Atlanta, GA, United States
| | - Patrick J. Loehrer
- Department of Medicine, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, IN, United States
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11
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Perrino M, De Pas T, Bozzarelli S, Giordano L, De Vincenzo F, Conforti F, Digiacomo N, Cordua N, D'Antonio F, Borea F, Santoro A, Zucali PA. Resound Trial: A phase 2 study of regorafenib in patients with thymoma (type B2-B3) and thymic carcinoma previously treated with chemotherapy. Cancer 2021; 128:719-726. [PMID: 34706060 DOI: 10.1002/cncr.33990] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/24/2021] [Accepted: 10/04/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Angiogenesis has an important role in thymic epithelial tumors (TETs). Regorafenib inhibits vascular endothelial growth factor receptors (VEGFRs), platelet-derived growth factor receptor β (PDGFR-β), and fibroblast growth factor receptors (FGFRs). This study explored the activity of regorafenib as monotherapy in patients with advanced or recurrent B2-B3 thymoma (T) and thymic carcinoma (TC) previously treated with platinum-containing chemotherapy. METHODS A Fleming single-arm, single-stage, phase 2 trial to evaluate the activity of regorafenib (160 mg once a day by mouth for 3 weeks on/1 week off) was planned. The study was designed to reject the null hypothesis of an 8-week progression-free survival (PFS) rate ≤25% with a type I error of 0.10 and a statistical power of 80% at the alternative hypothesis of an 8-week PFS rate of ≥50% (≥8 of 19 evaluable patients progression-free at 2 months). RESULTS From June 2016 to November 2017, 19 patients were enrolled (11T/8TC). We observed partial response (PR) in 1 patient (1T) (5.3%), stable disease (SD) in 14 patients (9T/5TC) (73.7%), and progressive disease in 2 patients (1T/1TC) (10.5%), with a disease control rate of 78.9%. According to Choi-criteria, 13 patients (68.4%) achieved PR, and 2 patients SD (10.5%). The median PFS was 9.6 months whereas median overall survival was 33.8 months. The 8-week PFS rate was 78.9% (15 of 19 patients). Grade 3-4 treatment-related adverse events were observed in 10 patients (52.6%). CONCLUSIONS The primary end point of this study was reached. The high rate of PR (Choi-criteria) suggests antitumor activity of regorafenib in TETs. On the basis of survival outcomes, the efficacy of regorafenib should be further evaluated in larger studies.
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Affiliation(s)
- Matteo Perrino
- Department of Oncology, IRCCS, Humanitas Research Hospital, Milan, Italy
| | - Tommaso De Pas
- Department of Oncology, IRCCS, European Institute of Oncology, Milan, Italy
| | - Silvia Bozzarelli
- Department of Oncology, IRCCS, Humanitas Research Hospital, Milan, Italy
| | - Laura Giordano
- Biostatistic Unit, IRCCS, Humanitas Research Hospital, Milan, Italy
| | - Fabio De Vincenzo
- Department of Oncology, IRCCS, Humanitas Research Hospital, Milan, Italy
| | - Fabio Conforti
- Department of Oncology, IRCCS, European Institute of Oncology, Milan, Italy
| | - Nunzio Digiacomo
- Department of Oncology, IRCCS, Humanitas Research Hospital, Milan, Italy
| | - Nadia Cordua
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | | | - Federica Borea
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Armando Santoro
- Department of Oncology, IRCCS, Humanitas Research Hospital, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Paolo Andrea Zucali
- Department of Oncology, IRCCS, Humanitas Research Hospital, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Milan, Italy
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12
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Future Perspective of Chemotherapy and Pharmacotherapy in Thymic Carcinoma. Cancers (Basel) 2021; 13:cancers13205239. [PMID: 34680386 PMCID: PMC8533972 DOI: 10.3390/cancers13205239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/07/2021] [Accepted: 10/09/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Thymic carcinoma is a rare cancer, and its biology remains largely unknown. Although complete surgical resection is a standard treatment for thymic carcinoma, systemic chemotherapy is frequently administered in metastatic or recurrent cases. Given the rarity, therapeutic agents are often confirmed on the basis of the results of phase II trials or retrospective studies. Platinum-based combination chemotherapy has long been employed for treating thymic carcinoma. Recently, biomarkers have been explored, and molecular profiles and major oncogenic pathways have gradually been revealed by next-generation sequencing, resulting in the development of targeted therapies. Moreover, clinical trials assessing combination therapy with immune checkpoint inhibitors are ongoing and are expected to be efficacious for treating thymic epithelial tumors. We reviewed the current role of systemic chemotherapy, including targeted therapies and immune checkpoint inhibitors, considering recent findings regarding its biology. Abstract Thymic carcinoma is a rare cancer that arises from thymic epithelial cells. Its nature and pathology differ from that of benign thymoma, presenting a poorer prognosis. If surgically resectable, surgery alone or surgery followed by chemoradiotherapy or radiotherapy is recommended by the National Comprehensive Cancer Network Guidelines. Metastatic and refractory thymic carcinomas require systemic pharmacotherapy. Combined carboplatin and paclitaxel, and cisplatin and anthracycline-based regimens have been shown a fair response rate and survival to provide a de facto standard of care when compared with other drugs employed as first-line chemotherapy. Cytotoxic agents have been pivotal for treating thymic carcinoma, as little is known regarding its tumorigenesis. In addition, genetic alterations, including driver mutations, which play an important role in treatments, have not yet been discovered. However, molecular pathways and biomarker studies assessing thymic epithelial tumors have been reported recently, resulting in the development of new agents, such as molecular targeted agents and immune checkpoint inhibitors. As treatment options are currently limited and the prognosis remains poor in metastases and recurrent thymic carcinoma, genetic alterations need to be assessed. In the present review, we focused on the current role of targeted therapies and immune checkpoint inhibitors in treating thymic carcinoma.
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Prays J, Ortiz-Villalón C. Molecular landscape of thymic epithelial tumors. Semin Diagn Pathol 2021; 39:131-136. [PMID: 34272124 DOI: 10.1053/j.semdp.2021.06.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 06/23/2021] [Accepted: 06/30/2021] [Indexed: 12/28/2022]
Abstract
Thymic epithelial tumors (TETs) are extremely rare and represent the most frequent tumors of the anterior mediastinum originating from epithelial cells in the thymus. Thymic epithelial tumors include thymomas (TM), thymic carcinomas (TC) and thymic neuroendocrine neoplasms (TNEN). Thymomas are the most predominant and are associated with autoimmune diseases. The available data suggests that the different histological subtypes have specific molecular alterations. Thymic carcinoma shows recurrent gene mutations, but further investigations are needed to understand the role of those mutations in the pathogenetic of the TETs. Some of the new emerging identified molecular alterations have the potential to offer new targeted therapies opening new possibilities for the treatment of thymic epithelial tumors.
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Affiliation(s)
- Julia Prays
- Department of Pathology, Karolinska University Hospital, Sweden
| | - Cristian Ortiz-Villalón
- Department of Pathology, Karolinska University Hospital, Sweden; Department of Oncology and pathology (ONKPAT), Karolinska Institute, Sweden.
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Tateo V, Manuzzi L, Parisi C, De Giglio A, Campana D, Pantaleo MA, Lamberti G. An Overview on Molecular Characterization of Thymic Tumors: Old and New Targets for Clinical Advances. Pharmaceuticals (Basel) 2021; 14:316. [PMID: 33915954 PMCID: PMC8066729 DOI: 10.3390/ph14040316] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 12/11/2022] Open
Abstract
Thymic tumors are a group of rare mediastinal malignancies that include three different histological subtypes with completely different clinical behavior: the thymic carcinomas, the thymomas, and the rarest thymic neuroendocrine tumors. Nowadays, few therapeutic options are available for relapsed and refractory thymic tumors after a first-line platinum-based chemotherapy. In the last years, the deepening of knowledge on thymus' biological characterization has opened possibilities for new treatment options. Several clinical trials have been conducted, the majority with disappointing results mainly due to inaccurate patient selection, but recently some encouraging results have been presented. In this review, we summarize the molecular alterations observed in thymic tumors, underlying the great biological differences among the different histology, and the promising targeted therapies for the future.
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Affiliation(s)
- Valentina Tateo
- Department of Experimental, Diagnostic and Specialty Medicine, Policlinico di Sant’Orsola University Hospital, Via P. Albertoni 15, 40138 Bologna, Italy; (V.T.); (L.M.); (C.P.); (D.C.); (M.A.P.); (G.L.)
| | - Lisa Manuzzi
- Department of Experimental, Diagnostic and Specialty Medicine, Policlinico di Sant’Orsola University Hospital, Via P. Albertoni 15, 40138 Bologna, Italy; (V.T.); (L.M.); (C.P.); (D.C.); (M.A.P.); (G.L.)
| | - Claudia Parisi
- Department of Experimental, Diagnostic and Specialty Medicine, Policlinico di Sant’Orsola University Hospital, Via P. Albertoni 15, 40138 Bologna, Italy; (V.T.); (L.M.); (C.P.); (D.C.); (M.A.P.); (G.L.)
| | - Andrea De Giglio
- Department of Experimental, Diagnostic and Specialty Medicine, Policlinico di Sant’Orsola University Hospital, Via P. Albertoni 15, 40138 Bologna, Italy; (V.T.); (L.M.); (C.P.); (D.C.); (M.A.P.); (G.L.)
- Division of Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via P. Albertoni 15, 40138 Bologna, Italy
| | - Davide Campana
- Department of Experimental, Diagnostic and Specialty Medicine, Policlinico di Sant’Orsola University Hospital, Via P. Albertoni 15, 40138 Bologna, Italy; (V.T.); (L.M.); (C.P.); (D.C.); (M.A.P.); (G.L.)
- Division of Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via P. Albertoni 15, 40138 Bologna, Italy
| | - Maria Abbondanza Pantaleo
- Department of Experimental, Diagnostic and Specialty Medicine, Policlinico di Sant’Orsola University Hospital, Via P. Albertoni 15, 40138 Bologna, Italy; (V.T.); (L.M.); (C.P.); (D.C.); (M.A.P.); (G.L.)
- Division of Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via P. Albertoni 15, 40138 Bologna, Italy
| | - Giuseppe Lamberti
- Department of Experimental, Diagnostic and Specialty Medicine, Policlinico di Sant’Orsola University Hospital, Via P. Albertoni 15, 40138 Bologna, Italy; (V.T.); (L.M.); (C.P.); (D.C.); (M.A.P.); (G.L.)
- Division of Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via P. Albertoni 15, 40138 Bologna, Italy
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Qiu G, Wang F, Zhang H, Zheng Y, Wang Z, Wang Y. The 100 most cited papers on thymic epithelial tumours: a bibliometric analysis. J Thorac Dis 2020; 12:7402-7415. [PMID: 33447429 PMCID: PMC7797823 DOI: 10.21037/jtd-20-2706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Bibliometric analysis can help us analyse the most influential papers, authors, research institutions in a discipline or topic and analyse the impact of these papers on a specific field. Our purpose is to identify the 100 most cited papers about thymic epithelial tumours (TETs) and analyse their key characteristics. We use certain search terms in the Web of Science database to identify the 100 most cited papers, and analysed the first author, country of the first author, institution, journal, type of paper, number of citations, and citation rate. The search returned 26,497 results. The top 100 papers received 17,674 citations. The most cited paper was by Masaoka et al. (n=1,190 citations), in which, clinical staging criteria are proposed for thymoma with special emphasis on the therapy and prognosis. The paper with the highest citation rate was also by Masaoka et al. (citations rate =30.51). Osaka University published the most papers (n=6) and accrued the highest number of citations (n=2,122 citations). The United States was the country with the most published papers (n=45) and the highest number of citations (n=7,991 citations). Cancer is the journal with the most published papers (n=19) and the highest number of citations (n=5,017 citations). Through the analysis of the most influential papers, this study provides a reference for researchers trying to understand TETs, thus providing guidance for future research.
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Affiliation(s)
- Guanghao Qiu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Fuqiang Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Hanlu Zhang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Zheng
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zihao Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yun Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
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Umemura S, Zhu J, Chahine JJ, Kallakury B, Chen V, Kim IK, Zhang YW, Goto K, He Y, Giaccone G. Downregulation of CYLD promotes IFN-γ mediated PD-L1 expression in thymic epithelial tumors. Lung Cancer 2020; 147:221-228. [PMID: 32738418 DOI: 10.1016/j.lungcan.2020.07.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 07/09/2020] [Accepted: 07/16/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Recent genomic studies suggest the biological significance of the cylindromatosis (CYLD) gene in thymic epithelial tumors (TETs). CYLD is a crucial regulator of immune response, and we previously reported that CYLD mutation is associated with high PD-L1 expression in thymic carcinoma. Therefore, we wanted to explore the role and mechanism of CYLD in regulating PD-L1 expression in TETs. MATERIALS AND METHODS The role of CYLD in PD-L1 expression was assessed by knockdown of CYLD in TET cells upon stimulation with interferon gamma (IFN-γ), tumor necrosis factor-α (TNF-α) or polyinosinic-polycytidylic acid (poly I:C). The molecular mechanism was investigated through analysis of downstream molecules in the STAT1/IRF1 pathway. Moreover, the clinical correlation between low CYLD and high PD-L1 expression, and the clinical impact of CYLD expression were evaluated in tissue microarrays of 105 TET cases. RESULTS CYLD knockdown significantly enhanced the expression of PD-L1 in presence of IFN-γ stimulation in most TET cell lines. However, this phenomenon was not observed in presence of TNF-α stimulation. CYLD knockdown upregulated IFN-γ mediated activation of the STAT1/IRF1 axis, which in turn induced PD-L1 expression. Interestingly, we found a significant association between low CYLD expression and ≥ 50 % PD-L1 expression (p = 0.001). In addition, the average proportion of tumor cells exhibiting PD-L1 staining was significantly higher in the low CYLD expression group (24.7 %) than in the high CYLD expression group (5.2 %) (p = 0.005). There was no correlation between CYLD expression and the frequency of pre-existing paraneoplastic auto-immune diseases. In advanced stages (III/IV), the low CYLD expressing group had numerically worse survival than the high CYLD group (log-rank p = 0.089). CONCLUSIONS Our findings provide insight into the mechanism of regulation of PD-L1 expression by CYLD in TET cells. Tumors with low CYLD expression could be potential targets for PD-1/PD-L1 inhibitors.
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Affiliation(s)
- Shigeki Umemura
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA; Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Jianquan Zhu
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA; Department of Lung Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin Lung Cancer Center, Tianjin Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin, People's Republic of China
| | - Joeffrey J Chahine
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA
| | - Bhaskar Kallakury
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA
| | - Vincent Chen
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA
| | - In-Kyu Kim
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA
| | - Yu-Wen Zhang
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA; Department of Cell Biology, University of Virginia, VA, USA
| | - Koichi Goto
- Department of Thoracic Oncology, National Cancer Center Hospital East, Kashiwa, Chiba, Japan
| | - Yongfeng He
- Meyer Cancer Center, Weill Cornel Medicine, NY, USA
| | - Giuseppe Giaccone
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA; Meyer Cancer Center, Weill Cornel Medicine, NY, USA.
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Jeong JH, Pyo JS, Kim NY, Kang DW. Diagnostic Roles of Immunohistochemistry in Thymic Tumors: Differentiation between Thymic Carcinoma and Thymoma. Diagnostics (Basel) 2020; 10:E460. [PMID: 32640732 PMCID: PMC7399973 DOI: 10.3390/diagnostics10070460] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/27/2020] [Accepted: 07/02/2020] [Indexed: 11/23/2022] Open
Abstract
Background: The present study aims to evaluate the diagnostic roles of various immunohistochemical (IHC) markers in thymic tumors, including thymic carcinoma (TC) and thymoma (TM). Methods: Eligible studies were obtained by searching the PubMed databases and screening the searched articles. Thirty-eight articles were used in the present meta-analysis and included 636 TCs and 1861 TMs. Besides, for IHC markers with statistical significance, a diagnostic test accuracy review was performed. Results: The comparison of various IHC expressions between TC and TM was performed for 32 IHC markers. Among these IHC markers, there were significant differences between TC and TM for beta-5t, B-cell lymphoma 2 (Bcl-2), calretinin, CD1a, CD5, carcinoembryonic antigen (CEA), cytokeratin19 (CK19), CD117, glucose transporter 1 (Glut-1), insulin-like growth factor 1 receptor (IGF-1R), mesothelin, MOC31, mucin1 (MUC1), p21, and terminal deoxynucleotidyl transferase (TdT). Markers with higher expressions in TCs were Bcl-2, calretinin, CD5, CEA, CD117, Glut-1, IGF-1R, mesothelin, MOC31, MUC1, and p21. Among these markers, there were no significant differences between TC and TM type B3 in immunohistochemistries for Bcl-2 and CK19. On the other hand, β-catenin and CD205 showed a considerable difference in IHC expressions between TC and TM type B3, but not between TC and overall TM. In diagnostic test accuracy review, MUC1 and beta-5t were the most useful markers for TC and TM, respectively. Conclusions: Taken together, our results showed that the expression rates for various IHC markers significantly differed between TC and TM. The IHC panel can be useful for differentiation from limited biopsied specimens in daily practice.
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Affiliation(s)
- Jae-Han Jeong
- Department of Thoracic and Cardiovascular Surgery, Chosun University Hospital, Chosun University School of Medicine, Gwangju 61453, Korea;
| | - Jung-Soo Pyo
- Department of Pathology, Daejeon Eulji University Hospial, Eulji University School of Medicine, Daejeon 35233, Korea;
| | - Nae-Yu Kim
- Department of Internal Medicine, Daejeon Eulji University Hospital, Eulji University School of Medicine, Daejeon 35233, Korea;
| | - Dong-Wook Kang
- Department of Pathology, Chungnam National University Sejong Hospital, 20 Bodeum 7-ro, Sejong 30099, Korea
- Department of Pathology, Chungnam National University School of Medicine, 266 Munhwa Street, Daejeon 35015, Korea
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Conforti F, Pala L, Giaccone G, De Pas T. Thymic epithelial tumors: From biology to treatment. Cancer Treat Rev 2020; 86:102014. [PMID: 32272379 DOI: 10.1016/j.ctrv.2020.102014] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 02/29/2020] [Accepted: 03/19/2020] [Indexed: 11/30/2022]
Abstract
In the last few years, meaningful advances have been made in the knowledge of the biology of Thymic Epithelial Tumors (TETs). Data available suggest that in most cases, the different histological subtypes could be distinct biological entities, characterized by specific molecular aberrations, rather than representing a histological continuum of diseases. Recurrent gene mutations in Thymomas and Thymic Carcinoma have been identified, but we still do not know the exact role played by these mutations in TETs pathogenesis. Relevant new data are now available on the pathogenetic mechanisms underlying the association between TETs and autoimmune diseases that warrant further investigations for the potential therapeutic implications. The progress in knowledge of the molecular pathways involved in TETs pathogenesis, allowed to identify and to test target therapies potentially active in such diseases. Platinum-based chemotherapy remains the standard first line treatment for patients with advanced or metastatic TETs. However, some promising data have been reported on the activity of new target therapies, including anti-angiogenic drugs, Cycline Dependent Kinases and PI3K/mTOR inhibitors, as well as of Immune-checkpoint inhibitors. A number of new drugs and combinations are currently under evaluation. The efficacy of new drugs should be balanced with their toxicity profiles, in such complex patients that seem to be more susceptible to develop drug-related toxicities, in particular with immunotherapies.
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Affiliation(s)
- Fabio Conforti
- Division of Medical Oncology for Melanoma, Sarcoma, and Rare Tumors, IEO, European Institute of Oncology IRCCS, Milan, Italy.
| | - Laura Pala
- Division of Medical Oncology for Melanoma, Sarcoma, and Rare Tumors, IEO, European Institute of Oncology IRCCS, Milan, Italy
| | | | - Tommaso De Pas
- Division of Medical Oncology for Melanoma, Sarcoma, and Rare Tumors, IEO, European Institute of Oncology IRCCS, Milan, Italy
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High expression level of SOX2 is significantly associated with shorter survival in patients with thymic epithelial tumors. Lung Cancer 2019; 132:9-16. [PMID: 31097100 DOI: 10.1016/j.lungcan.2019.03.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 01/30/2019] [Accepted: 03/18/2019] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Thymic epithelial tumors (TET) are heterogenous tumors which are composed of thymoma (TM) and thymic carcinoma (TC). We attempted to determine differences in gene expression between TM and TC, and to determine the effect of such genes on the prognosis of patients with TET. MATERIALS AND METHODS Gene expression profiles of SOX2, OCT-4, IGF-1, IGF-1R and IR mRNA transcripts in tumor tissues of TM and TC were determined using real-time PCR (RT-PCR). We constructed tissue microarray with 140 paraffin-embedded tumor tissues and performed immunohistochemistry (IHC) for IGF-1R-related signaling molecules, including SOX2, IGF-1, IGF-1R and pAKT. RESULTS SOX2 mRNA expression was notably higher (216-fold) in TCs than in TMs. However, there was no significant difference in expression of IGF-1, IGF-1R, OCT-4 or IR between the two tumor types. In IHC results, SOX2 (HR: 7.57, P = 0.001) and IGF-1 (HR: 9.43, P = 0.001) expression levels in TC were significantly higher than those in TM. There was a significant correlation in expression of SOX2 with IGF-1 (P = 0.021) and pAKT (P = 0.026). In univariate analysis, clinical TNM stage, WHO classification, serum LDH, expression of SOX2, IGF-1R, IGF-1 and pAKT, were significantly correlated with overall survival (OS). Multivariate analysis using a forward-selection procedure revealed that clinical N stage (HR: 4.08, P < 0.001), M stage (HR: 3.37, P = 0.001) and SOX2 expression (HR: 4.53, P = 0.010) were significantly associated with OS. CONCLUSIONS SOX2 is expressed significantly higher in TC than in TM. SOX2 expression is also closely related to IGF-1 and pAKT expression. The higher expression of SOX2 is significantly associated with shorter survival in patients with TET.
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Zucali PA, De Pas T, Palmieri G, Favaretto A, Chella A, Tiseo M, Caruso M, Simonelli M, Perrino M, De Vincenzo F, Toffalorio F, Damiano V, Pasello G, Garbella E, Ali M, Conforti F, Ottaviano M, Cioffi A, De Placido S, Giordano L, Bertossi M, Destro A, Di Tommaso L, Santoro A. Phase II Study of Everolimus in Patients With Thymoma and Thymic Carcinoma Previously Treated With Cisplatin-Based Chemotherapy. J Clin Oncol 2017; 36:342-349. [PMID: 29240542 DOI: 10.1200/jco.2017.74.4078] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Purpose No effective salvage treatments are available for patients with advanced/recurrent thymoma (T) or thymic carcinoma (TC) who have progressed after platinum-based chemotherapy. This study evaluated the activity of everolimus in patients with advanced/recurrent T or TC previously treated with cisplatin-containing chemotherapy. Patients and Methods This was a single-arm, single-stage, open-label, multicenter, phase II trial. Patients received oral everolimus 10 mg/d until disease progression, unacceptable toxicity, or patient refusal. A Fleming phase II trial was designed. The null hypothesis of a true disease control rate (DCR) of 40% was tested against a one-sided alternative of a true DCR of 60% (α = β = 0.10): If disease control were achieved in ≥ 21 of the first 41 evaluable patients, everolimus could be recommended for further evaluation. Progression-free survival, overall survival, and safety were also evaluated. Results From 2011 to 2013, 51 patients were enrolled (T, n = 32; TC, n = 19). Complete remission was observed in one patient with TC, partial response in five patients (T, n = 3; TC, n = 2), and stable disease in 38 patients (T, n = 27; TC, n= 11), with a DCR of 88% (T,: 93.8%; TC, 77.8%). With a median follow up of 25.7 months, median progression-free survival was 10.1 months (T,: 16.6 months; TC, 5.6 months), and median overall survival was 25.7 months (T, not reached; TC, 14.7 months). Fourteen patients had a serious drug-related adverse event; of these patients, nine permanently discontinued treatment. Three patients died of pneumonitis while in the study. Immunohistochemical positivity for p4E-BP1 or insulin-like growth factor-1 receptor was statistically significantly related to a shorter survival. Conclusion Everolimus may induce durable disease control in a high percentage of patients with T or TC, albeit with a potential high risk of fatal pneumonitis.
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Affiliation(s)
- Paolo Andrea Zucali
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Tommaso De Pas
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Giovannella Palmieri
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Adolfo Favaretto
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Antonio Chella
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Marcello Tiseo
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Michele Caruso
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Matteo Simonelli
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Matteo Perrino
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Fabio De Vincenzo
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Francesca Toffalorio
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Vincenzo Damiano
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Giulia Pasello
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Erika Garbella
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Marco Ali
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Fabio Conforti
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Margaret Ottaviano
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Angela Cioffi
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Sabino De Placido
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Laura Giordano
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Monica Bertossi
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Annarita Destro
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Luca Di Tommaso
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
| | - Armando Santoro
- Paolo Andrea Zucali, Matteo Simonelli, Matteo Perrino, Fabio De Vincenzo, Laura Giordano, Monica Bertossi, Annarita Destro, Luca Di Tommaso, and Armando Santoro¸ Humanitas Clinical and Research Hospital; Tommaso De Pas, Francesca Toffalorio, Fabio Conforti, and Angela Cioffi, European Institute of Oncology; Paolo Andrea Zucali, Matteo Simonelli, Luca Di Tommaso, and Armando Santoro, Humanitas University, Milan; Giovannella Palmieri, Vincenzo Damiano, Margaret Ottaviano, and Sabino De Placido, Università Federico II, Naples; Adolfo Favaretto and Giulia Pasello, Istituto Oncologico Veneto, Padua; Antonio Chella and Erika Garbella, University Hospital, Pisa; Marcello Tiseo, Azienda Ospedaliero-Universitaria of Parma, Parma; and Michele Caruso and Marco Ali, Humanitas Centro Catanese di Oncologia, Catania, Italy
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Conforti F, Zhang X, Rao G, De Pas T, Yonemori Y, Rodriguez JA, McCutcheon JN, Rahhal R, Alberobello AT, Wang Y, Zhang YW, Guha U, Giaccone G. Therapeutic Effects of XPO1 Inhibition in Thymic Epithelial Tumors. Cancer Res 2017; 77:5614-5627. [PMID: 28819023 PMCID: PMC8170838 DOI: 10.1158/0008-5472.can-17-1323] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/29/2017] [Accepted: 08/08/2017] [Indexed: 12/12/2022]
Abstract
Exportin 1 (XPO1) mediates nuclear export of many cellular factors known to play critical roles in malignant processes, and selinexor (KPT-330) is the first XPO1-selective inhibitor of nuclear export compound in advanced clinical development phase for cancer treatment. We demonstrated here that inhibition of XPO1 drives nuclear accumulation of important cargo tumor suppressor proteins, including transcription factor FOXO3a and p53 in thymic epithelial tumor (TET) cells, and induces p53-dependent and -independent antitumor activity in vitro Selinexor suppressed the growth of TET xenograft tumors in athymic nude mice via inhibition of cell proliferation and induction of apoptosis. Loss of p53 activity or amplification of XPO1 may contribute to resistance to XPO1 inhibitor in TET. Using mass spectrometry-based proteomics analysis, we identified a number of proteins whose abundances in the nucleus and cytoplasm shifted significantly following selinexor treatment in the TET cells. Furthermore, we found that XPO1 was highly expressed in aggressive histotypes and advanced stages of human TET, and high XPO1 expression was associated with poorer patient survival. These results underscore an important role of XPO1 in the pathogenesis of TET and support clinical development of the XPO1 inhibitor for the treatment of patients with this type of tumors. Cancer Res; 77(20); 5614-27. ©2017 AACR.
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Affiliation(s)
- Fabio Conforti
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia
- Oncology Unit of Thymic Cancer, Rare Tumors and Sarcomas, European Institute of Oncology, Milan, Italy
| | - Xu Zhang
- Thoracic and Gastrointestinal Oncology Branch, NCI, NIH, Bethesda, Maryland
| | - Guanhua Rao
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia
| | - Tommaso De Pas
- Oncology Unit of Thymic Cancer, Rare Tumors and Sarcomas, European Institute of Oncology, Milan, Italy
| | - Yoko Yonemori
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia
- Department of Diagnostic Pathology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Jose Antonio Rodriguez
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country, Barrio Sarriena s/n, Leioa, Spain
| | - Justine N McCutcheon
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia
| | - Raneen Rahhal
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia
| | - Anna T Alberobello
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia
| | - Yisong Wang
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia
| | - Yu-Wen Zhang
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia.
| | - Udayan Guha
- Thoracic and Gastrointestinal Oncology Branch, NCI, NIH, Bethesda, Maryland
| | - Giuseppe Giaccone
- Department of Oncology, Georgetown University Medical Center, Washington, District of Columbia.
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22
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Remon J, Abedallaa N, Taranchon-Clermont E, Bluthgen V, Lindsay CR, Besse B, Thomas de Montpréville V. CD52, CD22, CD26, EG5 and IGF-1R expression in thymic malignancies. Lung Cancer 2017. [PMID: 28625631 DOI: 10.1016/j.lungcan.2017.03.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Thymic epithelial tumours are rare cancers for which new treatment options are required. Identification of putative predictive markers is important for developing clinical trials. We studied the expression of five putative predictive biomarkers, potentially actionable by approved experimental drugs. METHODS CD52, CD22, CD26, EG5, and IGF-1R expression were investigated by immunohistochemistry in formalin-fixed surgical samples of thymic epithelial tumour patients. All samples containing 10% positive epithelial tumour cells, independent of tumour cell intensity, were considered as positive. Correlation with histological subtype was performed. RESULTS 106 surgical samples (89 thymomas, 12 thymic carcinoma, and 5 thymic neuroendocrine tumours) were evaluated. Overall, CD52, CD22, CD26, EG5 and IGF-1R expression was observed in 7%, 42%, 25%, 42% and 77% of samples, respectively. CD52 expression was more frequent in B2 and B3 thymoma. All TET subtypes stained for CD22, mainly AB thymoma (68%). CD26 expression also correlated with AB thymoma (68%), and A thymoma (50%) subtype, while IGFR1 was the most common marker expressed by thymic carcinoma samples (92%), followed by EG5 (60%). Only EG5 expression was significantly higher in thymic carcinomas than in thymomas (75% vs. 38%, p=0.026). CONCLUSIONS Our data were consistent with a previous study of IGF-1R expression. Based on their expression, activity of agents targeting CD52, CD 22, CD26 and EG5 could be further explored in TET patients.
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Affiliation(s)
- J Remon
- Gustave Roussy Cancer Campus, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - N Abedallaa
- Gustave Roussy Cancer Campus, 114 Rue Edouard Vaillant, 94805 Villejuif, France
| | - E Taranchon-Clermont
- Departement d'Anatomie Pathologiques Recherche, Institut Universitaire du Cancer Toulouse - Oncopole, 1 Avenue Irène Joint-Curie, 31509 Toulouse Cedex 9, France.
| | - V Bluthgen
- Gustave Roussy Cancer Campus, 114 Rue Edouard Vaillant, 94805 Villejuif, France.
| | - C R Lindsay
- Gustave Roussy Cancer Campus, 114 Rue Edouard Vaillant, 94805 Villejuif, France.
| | - B Besse
- Gustave Roussy Cancer Campus, 114 Rue Edouard Vaillant, 94805 Villejuif, France; University Paris-Sud, 114 Rue Edouard Vaillant, 94805 Villejuif, France.
| | - V Thomas de Montpréville
- Pathology Department, Hôpital Marie Lannelongue, 133, avenue de la Résistance, 92350 Le Plessis-Robinson, France.
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23
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Remon J, Lindsay C, Bluthgen M, Besse B. Thymic malignancies: Moving forward with new systemic treatments. Cancer Treat Rev 2016; 46:27-34. [DOI: 10.1016/j.ctrv.2016.03.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 03/21/2016] [Accepted: 03/25/2016] [Indexed: 11/29/2022]
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Simonelli M, Zucali PA, Suter MB, Lorenzi E, Rubino L, Fatuzzo G, Alloisio M, Santoro A. Targeted therapy for thymic epithelial tumors: a new horizon? Review of the literature and two cases reports. Future Oncol 2016; 11:1223-32. [PMID: 25832879 DOI: 10.2217/fon.14.318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Surgical resection remains the cornerstone of therapy for early-stage thymic epithelial tumors (TETs), while in advanced or recurrent forms, a multimodality approach incorporating radiation and chemotherapy is required. Given the absence of effective treatment options for metastatic/refractory TETs and the poor related prognosis, there is a compelling need to identify promising 'drugable' molecular targets. Initial reports of activity from targeted agents in TETs derived from anecdotal cases have been often associated with specific activating mutations. Only in recent years, several agents have been formally investigated into prospective clinical trials, with varying success rates. We reviewed the literature on targeted therapy in TETs along with two cases of thymoma achieving striking responses to sorafenib in combination with lapatinib.
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Affiliation(s)
- Matteo Simonelli
- Humanitas Cancer Center, Oncology & Hematology Unit, Istituto Clinico Humanitas IRCCS, 20089 Rozzano MI, Italy
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Scorsetti M, Leo F, Trama A, D'Angelillo R, Serpico D, Macerelli M, Zucali P, Gatta G, Garassino MC. Thymoma and thymic carcinomas. Crit Rev Oncol Hematol 2016; 99:332-50. [PMID: 26818050 DOI: 10.1016/j.critrevonc.2016.01.012] [Citation(s) in RCA: 185] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 12/09/2015] [Accepted: 01/14/2016] [Indexed: 12/15/2022] Open
Abstract
Thymomas (Ts) and thymic carcinomas (TCs) are rare tumours of the mediastinum with an incidence rate of 1.7/million per year in Europe. Histological classification is based on rate of non-malignant-appearing thymic epithelial cells and proportions of lymphocytes (A, AB, B1, B2, B3, and C), while staging system concerns localisation of the involved areas. Surgery is the mainstay of treatment with a 10-year survival of 80%, 78%, 75%, and 42% for stages I, II, III and IV, respectively, with an R0 resection. Radiotherapy has a role in selected cases (stage III patients or R1-2 residual) and platinum-based chemotherapy remains the standard of care for patients with advanced disease. A multimodality approach would be advisable when surgery is not recommended. Since molecular aberrations are poorly understood and few responses are reported, targeted therapies are yet being studied. In this review, we describe key aspects of clinical management for Ts and TCs.
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Affiliation(s)
- Marta Scorsetti
- Radiotherapy and Radiosurgery Department, Humanitas Clinical and Research Centre, Rozzano, Milan, Italy
| | - Francesco Leo
- Thoracic Surgery Service, Périgueux Hospital, Périgueux, France
| | - Annalisa Trama
- Evaluative Epidemiology, Fondazione IRCCS-Italian National Cancer Institute, Milan, Italy
| | | | - Danila Serpico
- Evaluative Epidemiology, Fondazione IRCCS-Italian National Cancer Institute, Milan, Italy
| | - Marianna Macerelli
- Thoracic Oncology Unit, Division of Medical Oncology, Foundation IRCCS-Italian National Cancer Institute, Milan, Italy.
| | - Paolo Zucali
- Medical Oncology and Haematology Unit, Humanitas Clinical and Research Centre, Rozzano, Milan, Italy
| | - Gemma Gatta
- Evaluative Epidemiology, Fondazione IRCCS-Italian National Cancer Institute, Milan, Italy
| | - Marina Chiara Garassino
- Thoracic Oncology Unit, Division of Medical Oncology, Foundation IRCCS-Italian National Cancer Institute, Milan, Italy
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Kossai M, Duchemann B, Boutros C, Caramella C, Hollebecque A, Angevin E, Gazzah A, Bahleda R, Ileana E, Massard C, Vielh P, Soria J, Besse B. Antitumor activity in advanced cancer patients with thymic malignancies enrolled in early clinical drug development programs (Phase I trials) at Gustave Roussy. Lung Cancer 2015; 89:306-10. [DOI: 10.1016/j.lungcan.2015.06.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 06/08/2015] [Accepted: 06/14/2015] [Indexed: 12/12/2022]
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FDG PET/CT Manifestation of Rare Widespread Metastatic Chemoradiation-Refractory Thymic Squamous Cell Carcinoma. Clin Nucl Med 2015; 40:899-901. [PMID: 26252330 DOI: 10.1097/rlu.0000000000000936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A 74-year-old man underwent excisional biopsy of an anterior mediastinal mass that revealed squamous cell carcinoma of thymic origin. Immunohistochemistry revealed insulin-like growth factor-1 receptor positivity, which has been associated with worse prognosis. Restaging FDG PET/CT revealed extensive soft tissue and osseous metastases despite surgery and chemoradiation therapy. Patient was then enrolled in a clinical trial with anti-insulin-like growth factor-1 receptor therapy. A 3-month follow-up FDG PET/CT showed disease progression with an increase in size and number of hypermetabolic metastatic lesions, including interval development of multiple new metastases.
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Abstract
The rapid advent of technology in recent years has resulted in a substantial increase in our knowledge of the molecular underpinnings of thymic epithelial tumors. In addition to previously described chromosomal aberrations and alterations in DNA methylation, genome sequencing has helped unravel hitherto unknown mutations in these tumors. Attempts are also being made to develop gene signatures to help in the identification of patients likely to benefit from adjuvant therapy. Some of the recently identified genetic alterations have the potential to serve as targets for biological therapy, thus opening newer avenues for treatment of thymic epithelial tumors and increasing the number of effective options for treatment of recurrent or refractory disease.
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Abstract
The diagnosis of thymic epithelial neoplasms is normally rendered after careful evaluation of their histologic features. In some cases, however, the morphological heterogeneity or overlap with neoplasms of other organ systems can lead to diagnostic uncertainty. On the basis of this, the use of immunohistochemical stains as a diagnostic adjunct has become a popular tool. Although undoubtedly, immunohistochemistry has its role in the diagnosis of difficult cases, to date there are no specific markers that would distinguish thymic epithelial neoplasms from other tumors and interpretation of immunohistochemical results should only ever be made in conjunction with accurate morphologic analysis and careful clinical evaluation. This article will review the current knowledge of the immunohistochemical phenotype of thymic epithelial neoplasms with particular emphasis on its use for diagnostic purposes and the latest advances in this field.
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Serpico D, Trama A, Haspinger ER, Agustoni F, Botta L, Berardi R, Palmieri G, Zucali P, Gallucci R, Broggini M, Gatta G, Pastorino U, Pelosi G, de Braud F, Garassino MC. Available evidence and new biological perspectives on medical treatment of advanced thymic epithelial tumors. Ann Oncol 2014; 26:838-847. [PMID: 25411417 DOI: 10.1093/annonc/mdu527] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 10/27/2014] [Indexed: 12/14/2022] Open
Abstract
Thymic epithelial tumors (TETs) are rare primary mediastinal tumors arising from thymic epithelium. Their rarity and complexity hinder investigations of their causes and therapy development. Here, we summarize the existing knowledge regarding medical treatment of these tumors, and thoroughly review the known genetic aberrations associated with TETs and the present status of potential biological treatments. Epidermal growth factor receptor (EGFR), stem-cell factor receptor, insulin-like growth factor-1 receptor (IGF1R), and vascular endothelial growth factors (VEGF-A, VEGF-B, and VEGF-2) are overexpressed in TETs. EGFR overexpression in TETs is associated with higher stage, and IGF1R overexpression has poor prognostic value. Data indicate that anti-IGF1R monoclonal antibodies, and inhibitors of angiogenesis, somatostatin receptors, histone deacetylase, mammalian target of rapamycin, and cyclin-dependent kinases may be active against TETs. Continued investigations in this field could lead to advancement of targeted and biological therapies for TETs.
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Affiliation(s)
- D Serpico
- Thoracic Oncology Unit, Department of Medical Oncology
| | - A Trama
- Evaluative Epidemiology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan
| | - E R Haspinger
- Thoracic Oncology Unit, Department of Medical Oncology
| | - F Agustoni
- Thoracic Oncology Unit, Department of Medical Oncology
| | - L Botta
- Evaluative Epidemiology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan
| | - R Berardi
- Department of Medical Oncology, Universita Politecnica delle Marche, Ancona
| | - G Palmieri
- Department of Molecular and Clinical Endocrinology and Oncology, 'Federico II', University, Naples
| | - P Zucali
- Department of Oncology and Hematology, Humanitas Cancer Center, Rozzano
| | - R Gallucci
- Thoracic Oncology Unit, Department of Medical Oncology
| | - M Broggini
- Laboratory of Molecular Pharmacology, IRCCS 'Mario Negri', Milan
| | - G Gatta
- Evaluative Epidemiology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan
| | | | | | - F de Braud
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - M C Garassino
- Thoracic Oncology Unit, Department of Medical Oncology.
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Martínez P, Sales Fidalgo PA, Felip E. Ganitumab for the treatment of small-cell lung cancer. Expert Opin Investig Drugs 2014; 23:1423-32. [PMID: 25189625 DOI: 10.1517/13543784.2014.951434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Small-cell lung cancer (SCLC) accounts for 15 - 20% of all lung cancer cases with few advances made in the systemic treatment and outcomes for extensive-stage SCLC. Many strategies have been evaluated over the past 15 years but none of these approaches has resulted in improved survival rates for patients with SCLC. The IGF receptor (IGF-R) pathway represents a potential actionable target in SCLC patients. Indeed, the IGF-R pathway is involved in cancer development and progression and regulates different vital processes including fetal development, growth and metabolism. AREAS COVERED This review provides an overview of insulin inhibitors and the strategies undertaken in recent years with SCLC. Specifically, the article discusses ganitumab and its applicability to SCLC patients. EXPERT OPINION At present, there is a lack of therapeutic choices for patients with advanced SCLC. Unfortunately, ganitumab, administered in combination with chemotherapy, demonstrated no clinical activity in patients with SCLC, although it could have utility with other cancers. Furthermore, insulin inhibitors may have some utility in the treatment of SCLC and further studies are required to identify subsets of patients most likely to benefit from their use. The authors also believe that it is important to determine the exact role of the IGF pathway in the pathogenesis and propagation of SCLC.
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Affiliation(s)
- Pablo Martínez
- Vall d´Hebron University Hospital and Vall d´Hebron Institute of Oncology, Medical Oncology Department , Barcelona , Spain
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Petrini I, Meltzer PS, Kim IK, Lucchi M, Park KS, Fontanini G, Gao J, Zucali PA, Calabrese F, Favaretto A, Rea F, Rodriguez-Canales J, Walker RL, Pineda M, Zhu YJ, Lau C, Killian KJ, Bilke S, Voeller D, Dakshanamurthy S, Wang Y, Giaccone G. A specific missense mutation in GTF2I occurs at high frequency in thymic epithelial tumors. Nat Genet 2014; 46:844-9. [PMID: 24974848 DOI: 10.1038/ng.3016] [Citation(s) in RCA: 188] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 06/02/2014] [Indexed: 12/15/2022]
Abstract
We analyzed 28 thymic epithelial tumors (TETs) using next-generation sequencing and identified a missense mutation (chromosome 7 c.74146970T>A) in GTF2I at high frequency in type A thymomas, a relatively indolent subtype. In a series of 274 TETs, we detected the GTF2I mutation in 82% of type A and 74% of type AB thymomas but rarely in the aggressive subtypes, where recurrent mutations of known cancer genes have been identified. Therefore, GTF2I mutation correlated with better survival. GTF2I β and δ isoforms were expressed in TETs, and both mutant isoforms were able to stimulate cell proliferation in vitro. Thymic carcinomas carried a higher number of mutations than thymomas (average of 43.5 and 18.4, respectively). Notably, we identified recurrent mutations of known cancer genes, including TP53, CYLD, CDKN2A, BAP1 and PBRM1, in thymic carcinomas. These findings will complement the diagnostic assessment of these tumors and also facilitate development of a molecular classification and assessment of prognosis and treatment strategies.
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Affiliation(s)
- Iacopo Petrini
- Medical Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Paul S Meltzer
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - In-Kyu Kim
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
| | - Marco Lucchi
- Thoracic Surgery, Pisa University Hospital, Pisa, Italy
| | - Kang-Seo Park
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
| | | | - James Gao
- Medical Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Paolo A Zucali
- Medical Oncology, Humanitas Clinical and Research Center, Rozzano, Milan, Italy
| | | | | | - Federico Rea
- Thoracic Surgery, Padua University Hospital, Padua, Italy
| | | | - Robert L Walker
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Marbin Pineda
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Yuelin J Zhu
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Christopher Lau
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Keith J Killian
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Sven Bilke
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Donna Voeller
- Medical Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | | | - Yisong Wang
- 1] Medical Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA. [2] Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
| | - Giuseppe Giaccone
- 1] Medical Oncology Branch, National Cancer Institute, Bethesda, Maryland, USA. [2] Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
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Chen L, Wu K. [Research status of molecular targeted therapy in thymic epithelial tumors]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2014; 17:487-90. [PMID: 24949690 PMCID: PMC6000099 DOI: 10.3779/j.issn.1009-3419.2014.06.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
In recent years, as the study of molecular mechanism and signal transduction pathways of tumors, molecular target therapy in many solid tumors has made great progress. At present, more and more studies focus on molecular target drugs in thymic epithelial tumors and people have got some experience. Molecular target therapy may be a new therapeutic option for patients of thymic epithelial tumor.
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Affiliation(s)
- Lizhu Chen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Fujian Provincial Cancer Hospital, Fuzhou 350014, China
| | - Kailiang Wu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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Chen Y, Gharwan H, Thomas A. Novel biologic therapies for thymic epithelial tumors. Front Oncol 2014; 4:103. [PMID: 24847446 PMCID: PMC4019864 DOI: 10.3389/fonc.2014.00103] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Accepted: 04/25/2014] [Indexed: 12/31/2022] Open
Affiliation(s)
- Yuanbin Chen
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Helen Gharwan
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Anish Thomas
- Thoracic and Gastrointestinal Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Rajan A, Carter CA, Berman A, Cao L, Kelly RJ, Thomas A, Khozin S, Chavez AL, Bergagnini I, Scepura B, Szabo E, Lee MJ, Trepel JB, Browne SK, Rosen LB, Yu Y, Steinberg SM, Chen HX, Riely GJ, Giaccone G. Cixutumumab for patients with recurrent or refractory advanced thymic epithelial tumours: a multicentre, open-label, phase 2 trial. Lancet Oncol 2014; 15:191-200. [PMID: 24439931 DOI: 10.1016/s1470-2045(13)70596-5] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND No standard treatment exists for refractory or relapsed advanced thymic epithelial tumours. We investigated the efficacy of cixutumumab, a fully human IgG1 monoclonal antibody targeting the insulin-like growth factor 1 receptor in thymic epithelial tumours after failure of previous chemotherapy. METHODS Between Aug 25, 2009, and March 27, 2012, we did a multicentre, open-label, phase 2 trial in patients aged 18 years or older with histologically confirmed recurrent or refractory thymic epithelial tumours. We enrolled individuals who had progressed after at least one previous regimen of platinum-containing chemotherapy, had an Eastern Cooperative Oncology Group performance status of 0 or 1, and had measurable disease and adequate organ function. Eligible patients received intravenous cixutumumab (20 mg/kg) every 3 weeks until disease progression or development of intolerable toxic effects. The primary endpoint was the frequency of response, analysed on an intention-to-treat basis. We also did pharmacodynamic studies. This trial is registered with ClinicalTrials.gov, number NCT00965250. FINDINGS 49 patients were enrolled (37 with thymomas and 12 with thymic carcinomas) who received a median of eight cycles of cixutumumab (range 1-46). At the final actuarial analysis when follow-up data were updated (Nov 30, 2012), median potential follow-up (from on-study date to most current follow-up date) was 24·0 months (IQR 17·3-36·9). In the thymoma cohort, five (14%) of 37 patients (95% CI 5-29) achieved a partial response, 28 had stable disease, and four had progressive disease. In the thymic carcinoma cohort, none of 12 patients (95% CI 0-26) had a partial response, five had stable disease, and seven had progressive disease. The most common grade 3-4 adverse events in both cohorts combined were hyperglycaemia (five [10%]), lipase elevation (three [6%]), and weight loss, tumour pain, and hyperuricaemia (two each [4%]). Nine (24%) of 37 patients with thymoma developed autoimmune conditions during treatment (five were new-onset disorders), the most common of which was pure red-cell aplasia. Two (4%) patients died; one was attributed to disease progression and the other to disease-related complications (respiratory failure, myositis, and an acute coronary event), which could have been precipitated by treatment with cixutumumab. INTERPRETATION Cixutumumab monotherapy is well-tolerated and active in relapsed thymoma. Development of autoimmunity during treatment needs further investigation. FUNDING Division of Cancer Treatment and Diagnosis at the National Cancer Institute (National Institutes of Health), ImClone Systems.
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Affiliation(s)
- Arun Rajan
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Corey A Carter
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Arlene Berman
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Liang Cao
- Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ronan J Kelly
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Anish Thomas
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sean Khozin
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ariel Lopez Chavez
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Barbara Scepura
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Eva Szabo
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Min-Jung Lee
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jane B Trepel
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sarah K Browne
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Lindsey B Rosen
- National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Yunkai Yu
- Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Seth M Steinberg
- Biostatistics and Data Management Section, Office of the Clinical Director, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Helen X Chen
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Giuseppe Giaccone
- Medical Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Girard N. Chemotherapy and targeted agents for thymic malignancies. Expert Rev Anticancer Ther 2014; 12:685-95. [DOI: 10.1586/era.12.29] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Abstract
The rarity of thymic malignancies prevents us from performing large randomized clinical trials. As a result, systemic treatment decisions are often guided by a small amount of prospective trial data, retrospective series, and individual case reports. In recent years, we have begun to unravel the molecular biology of thymic tumors. It is becoming more apparent as a result of gene expression profiling and genomic clustering studies that the subclassifications of type A, AB, B1, B2, B3, and thymic carcinoma have different molecular features that may be clinically relevant. Genomic profiling distinguishes type B3 thymoma and thymic carcinoma as distinct entities from type A and type B2 thymoma. Furthermore, type B2 thymomas can be separated from other subgroups in that it has a more distinct lymphocytic component than the other groups where epithelial cells predominate. Next generation RNA sequencing has recently identified a large microRNA cluster on chromosome 19q13.42 in types A and AB thymomas, which is absent in type B thymomas and thymic carcinomas. This cluster has been shown to result in activation of the phosphoinositide 3-kinase (PI3K)/AKT pathway, which suggests a possible role for PI3K inhibitors in these subtypes. The presence of KIT mutations in thymic carcinomas is also well described. Herein we discuss the chemotherapeutic and targeted treatment options for advanced thymic malignancies and highlight important advances in our understanding of the molecular biology of these rare tumors.
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Affiliation(s)
- Ronan J Kelly
- From the Bunting Blaustein Cancer Research Building, the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins University, Baltimore, MD
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Berardi R, De Lisa M, Pagliaretta S, Onofri A, Morgese F, Savini A, Ballatore Z, Caramanti M, Santoni M, Mazzanti P, Cascinu S. Thymic neoplasms: an update on the use of chemotherapy and new targeted therapies. A literature review. Cancer Treat Rev 2013; 40:495-506. [PMID: 24355362 DOI: 10.1016/j.ctrv.2013.11.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 11/10/2013] [Accepted: 11/12/2013] [Indexed: 12/14/2022]
Abstract
Thymic malignancies represent a wide range of clinical, histological and molecular entities, with probably considerable heterogeneity even among tumors of the same histotype. Systemic chemotherapy with cisplatin-based regimens continues to represent the standard of care in metastatic or inoperable refractory/recurrent diseases and ADOC regimen (including cisplatin, doxorubicin, vincristine and cyclophosphamide) demonstrated the longer overall response rate and median survival in the first line setting, although no randomized trial is available; and there is still a lack of standard treatment after first-line failure. To date research efforts are focused on translational studies on molecular pathways involved in thymic tumors carcinogenesis, aimed to better understand and predict the efficacy of chemotherapy and targeted therapy. Recent molecular characterization includes identification of a number of oncogenes, tumor suppressor genes, chromosomal aberrations, angiogenic factors, and tumor invasion factors involved in cellular survival and proliferation and in tumor growth. The use of biologic drugs is currently not recommended in a routine practice because there are limited data on their therapeutic role in thymic epitelial tumors. Because of the lack of data from adequate-sized, prospective trials are required for validation and the enrolment of patients with advanced disease into available clinical trials has to be encouraged.
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Affiliation(s)
- Rossana Berardi
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy.
| | - Mariagrazia De Lisa
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Silvia Pagliaretta
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Azzurra Onofri
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Francesca Morgese
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Agnese Savini
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Zelmira Ballatore
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Miriam Caramanti
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Matteo Santoni
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Paola Mazzanti
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
| | - Stefano Cascinu
- Medical Oncology, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I, GM Lancisi, G Salesi, Ancona, Italy
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Lamarca A, Moreno V, Feliu J. Thymoma and thymic carcinoma in the target therapies era. Cancer Treat Rev 2013; 39:413-20. [DOI: 10.1016/j.ctrv.2012.11.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 11/14/2012] [Accepted: 11/19/2012] [Indexed: 10/27/2022]
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Petrini I, Wang Y, Zucali PA, Lee HS, Trung P, Voeller D, Meltzer PS, Giaccone G. Copy number aberrations of genes regulating normal thymus development in thymic epithelial tumors. Clin Cancer Res 2013; 19:1960-71. [PMID: 23444221 PMCID: PMC3630263 DOI: 10.1158/1078-0432.ccr-12-3260] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSES To determine whether the deregulation of genes relevant for normal thymus development can contribute to the biology of thymic epithelial tumors (TET). EXPERIMENTAL DESIGN Using array comparative genomic hybridization, we evaluated the copy number aberrations of genes regulating thymus development. The expression of genes most commonly involved in copy number aberrations was evaluated by immunohistochemistry and correlated with patients' outcome. Correlation between FOXC1 copy number loss and gene expression was determined in a confirmation cohort. Cell lines were used to test the role of FOXC1 in tumors. RESULTS Among 31 thymus development-related genes, PBX1 copy number gain and FOXC1 copy number loss were presented in 43.0% and 39.5% of the tumors, respectively. Immunohistochemistry on a series of 132 TETs, including those evaluated by comparative genomic hybridization, revealed a correlation between protein expression and copy number status only for FOXC1 but not for PBX1. Patients with FOXC1-negative tumors had a shorter time to progression and a trend for a shorter disease-related survival. The correlation between FOXC1 copy number loss and mRNA expression was confirmed in a separate cohort of 27 TETs. Ectopic FOXC1 expression attenuated anchorage-independent cell growth and cell migration in vitro. CONCLUSION Our data support a tumor suppressor role of FOXC1 in TETs.
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Affiliation(s)
- Iacopo Petrini
- Medical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda MD, USA, 20892
| | - Yisong Wang
- Medical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda MD, USA, 20892
| | - Paolo A. Zucali
- Department of Medical Oncology, Humanitas Cancer Center, IRCCS, Rozzano, Milan 20089, Italy
| | - Hye Seung Lee
- Medical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda MD, USA, 20892
| | - Pham Trung
- Medical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda MD, USA, 20892
| | - Donna Voeller
- Medical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda MD, USA, 20892
| | - Paul S. Meltzer
- Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda MD,USA, 20892
| | - Giuseppe Giaccone
- Medical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda MD, USA, 20892
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Zucali PA, Di Tommaso L, Petrini I, Battista S, Lee HS, Merino M, Lorenzi E, Voulaz E, De Vincenzo F, Simonelli M, Roncalli M, Giordano L, Alloisio M, Santoro A, Giaccone G. Reproducibility of the WHO classification of thymomas: practical implications. Lung Cancer 2013; 79:236-41. [PMID: 23279873 PMCID: PMC3575111 DOI: 10.1016/j.lungcan.2012.11.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 11/16/2012] [Accepted: 11/19/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND The WHO-classification was shown to be an independent prognostic marker in some but not all retrospective studies possibly due to lack of reproducibility. We investigated the reproducibility of the WHO-classification and its prognostic implication using a large series of resected thymomas. METHODS Four independent pathologists histologically classified a surgical series of 129 thymic tumors in a blinded fashion. Fleiss' kappa-coefficient was used to assess the pathologists' overall agreement, and Cohen-Kappa to assess the agreement between two observers. Disease-related-survival (DRS) and progression-free-survival (PFS) curves were generated by Kaplan-Meier method and compared by log-rank test. RESULTS In 63/129 (48.8%) cases there was a complete agreement; in 43/129 (33.3%) cases 3/4 pathological diagnoses were identical; in 15/129 (11.6%) cases the diagnoses were identical by pair; in 8/129 (6.2%) cases three different pathological diagnoses were on record. The Kappa-correlation coefficient was only moderate (0.53). A following web review carried out on the 23 cases with at least two different diagnoses reached a complete consensus. The histotype showed a statistically significant impact on PFS and DRS in the classification provided by only two pathologists. CONCLUSIONS In this study, the agreement on WHO classification of thymomas was only moderate and this impacted on patients management. Web consensus conference on the diagnosis, more stringent diagnostic criteria or the adoption of referral diagnostic centres may substantially reduce discrepancies.
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Affiliation(s)
- P A Zucali
- Humanitas Cancer Center, Via Manzoni 56, Rozzano, Milan, Italy
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Mimae T, Tsuta K, Kondo T, Nitta H, Grogan TM, Okada M, Asamura H, Tsuda H. Protein expression and gene copy number changes of receptor tyrosine kinase in thymomas and thymic carcinomas. Ann Oncol 2012; 23:3129-3137. [PMID: 22700994 DOI: 10.1093/annonc/mds147] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Insulin-like growth factor-1 receptor (IGF-1R), epidermal growth factor receptor (EGFR), human epidermal growth factor receptor-type 2 (HER2), and c-Met are members of the receptor tyrosine kinases (RTKs). The associations between the RTK status [protein expression and gene copy number (GCN)] and patient characteristics and between the RTK status and prognosis remain undetermined. MATERIALS AND METHODS The study included 140 patients who underwent surgery for thymic tumors. Protein expression was evaluated by immunohistochemistry (IHC) and GCN was evaluated by bright-field in situ hybridization (BISH). The correlations between the RTK status and clinicopathological findings were examined. RESULTS IGF-1R protein was frequently detected in thymic carcinoma (83.8%) and EGFR in thymic tumors (91.4%). Thirty-six and 39 tumors were BISH high for IGF-1R and EGFR, respectively: 28 and 25 exhibited high polysomy; 8 and 14 exhibited gene amplification. No tumor was positive for HER2 or c-Met by IHC and BISH. Multivariate analysis revealed that IGF-1R gene amplification (P = 0.027), thymic carcinoma histology, and higher tumor stage were significantly correlated with an adverse prognosis. CONCLUSIONS Thymic epithelial tumors frequently express IGF-1R and/or EGFR proteins. IGF-1R gene amplification is suggested to define an unfavorable subset for thymic epithelial tumors.
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Affiliation(s)
- T Mimae
- Divisions of Pathology and Clinical Laboratories, Japan; Divisions of Pharmaco-Proteomics, Japan; Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | - K Tsuta
- Divisions of Pathology and Clinical Laboratories, Japan.
| | - T Kondo
- Divisions of Pharmaco-Proteomics, Japan
| | - H Nitta
- Department of Medical Innovation, Ventana Medical Systems, Inc., Tucson, USA
| | - T M Grogan
- Department of Medical Innovation, Ventana Medical Systems, Inc., Tucson, USA
| | - M Okada
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
| | - H Asamura
- Divisions of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan
| | - H Tsuda
- Divisions of Pathology and Clinical Laboratories, Japan
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Omatsu M, Kunimura T, Mikogami T, Hamatani S, Shiokawa A, Masunaga A, Kitami A, Suzuki T, Kadokura M, Morohoshi T. Immunohistochemical analysis of thymic carcinoma focusing on the possibility of molecular targeted and hormonal therapies. Gen Thorac Cardiovasc Surg 2012; 60:803-10. [PMID: 23054618 DOI: 10.1007/s11748-012-0160-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 09/18/2012] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Thymic carcinoma is a rare mediastinal malignant tumor, and in many patients, the tumor is detected in an inoperable advanced stage. Even when chemotherapy is administered to such patients, the patients show a poor response. We investigated new biomarkers of therapeutic molecular targets. METHODS This study included 44 patients diagnosed and treated for primary thymic epithelial tumors at Showa University Northern Yokohama Hospital, Showa University Hospital, and Showa University Fujigaoka Hospital from 2003 to 2011. We investigated new biomarkers of therapeutic molecular targets, such as the peroxisome proliferator-activated receptor γ (PPARγ), insulin-like growth factor 1 receptor (IGF1R), epidermal growth factor receptor (EGFR), estrogen receptor (ER), progesterone receptor (PgR), androgen receptor (AR), human epidermal growth factor type 2 (HER2)/neu, CD44, and L-type amino acid transporter 1 (LAT1), in thymic tumors. RESULT Immunohistochemical analysis showed that the PPARγ positivity rate in thymic carcinoma was 32 %, which was significantly higher than that in thymoma (4 %). The IGF1R positivity rate in thymic carcinoma was 73 %, which was significantly higher than that in thymoma (27 %). CONCLUSION Therefore, by examining the expressions of PPARγ and IGF1R, it would be possible to identify therapy-responsive patients and to improve results of thymic carcinoma treatment.
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Affiliation(s)
- Mutsuko Omatsu
- Department of Clinical Diagnostic Pathology, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuo, Tsuzuki-ku, Yokohama, 224-8503, Japan.
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Evans TL. Emerging treatment options for patients with recurrent advanced thymic epithelial tumors. Onco Targets Ther 2012; 5:177-84. [PMID: 22973113 PMCID: PMC3439855 DOI: 10.2147/ott.s23267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The purpose of this review article is to review recent advances in the treatment of advanced thymic epithelial tumors. These tumors are generally responsive to cytotoxic combination chemotherapy in the first-line setting. While newer agents have shown efficacy in the salvage setting, there is no one standard approach. A multitude of targeted agents have shown promise generally in case reports, though as of yet, nothing has shown consistent benefit. Because of the rarity of thymic epithelial tumors, clinical trial enrollment is difficult but nevertheless essential.
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Affiliation(s)
- Tracey L Evans
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, USA
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45
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Koppitz H, Rockstroh JK, Schüller H, Standop J, Skowasch D, Müller-Hermelink HK, Schmidt-Wolf IG. State-of-the-art classification and multimodality treatment of malignant thymoma. Cancer Treat Rev 2012; 38:540-8. [DOI: 10.1016/j.ctrv.2011.11.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Revised: 11/28/2011] [Accepted: 11/30/2011] [Indexed: 12/23/2022]
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Petrini I, Meltzer PS, Zucali PA, Luo J, Lee C, Santoro A, Lee HS, Killian KJ, Wang Y, Tsokos M, Roncalli M, Steinberg SM, Wang Y, Giaccone G. Copy number aberrations of BCL2 and CDKN2A/B identified by array-CGH in thymic epithelial tumors. Cell Death Dis 2012; 3:e351. [PMID: 22825469 PMCID: PMC3406591 DOI: 10.1038/cddis.2012.92] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The molecular pathology of thymic epithelial tumors (TETs) is largely unknown. Using array comparative genomic hybridization (CGH), we evaluated 59 TETs and identified recurrent patterns of copy number (CN) aberrations in different histotypes. GISTIC algorithm revealed the presence of 126 significant peaks of CN aberration, which included 13 cancer-related genes. Among these peaks, CN gain of BCL2 and CN loss of CDKN2A/B were the only genes in the respective regions of CN aberration and were associated with poor outcome. TET cell lines were sensitive to siRNA knockdown of the anti-apoptotic molecules BCL2 and MCL1. Gx15-070, a pan-BCL2 inhibitor, induced autophagy-dependent necroptosis in TET cells via a mechanism involving mTOR pathways, and inhibited TET xenograft growth. ABT263, an inhibitor of BCL2/BCL-XL/BCL-W, reduced proliferation in TET cells when administered in combination with sorafenib, a tyrosine kinase inhibitor able to downregulate MCL1. Immunohistochemistry on 132 TETs demonstrated that CN loss of CDKN2A correlated with lack of expression of its related protein p16INK4 and identified tumors with poor prognosis. The molecular markers BCL2 and CDKN2A may be of potential value in diagnosis and prognosis of TETs. Our study provides the first preclinical evidence that deregulated anti-apoptotic BCL2 family proteins may represent suitable targets for TET treatment.
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Affiliation(s)
- I Petrini
- Medical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Palmieri G, Buonerba C, Federico P, Formisano L, Nappi L, Di Lorenzo G, Marino M, Damiano V. Everolimus plus long-acting somatostatin analogs in thymic epithelial malignancies. World J Clin Oncol 2012; 3:111-5. [PMID: 22787579 PMCID: PMC3394082 DOI: 10.5306/wjco.v3.i7.111] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/19/2012] [Accepted: 06/30/2012] [Indexed: 02/06/2023] Open
Abstract
Although thymic epithelial tumors (TETs) are rare in the general population, they represent the most frequently diagnosed primary malignant tumor of the anterior mediastinum. Unlike localized disease, metastatic disease is invariably fatal. While several chemotherapy agents have proven to be effective in TETs, somatostatin analogs are the only targeted agents with an established role in this disease. Everolimus is an mTOR inhibitor with multiple application in oncology. In this report, we show for the first time that everolimus was effective in two heavily pretreated patients with advanced TETs, with a progression-free survival longer than 1 year and minimal toxicity.
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Affiliation(s)
- Giovannella Palmieri
- Clinical Endocrinology and Oncology Department, UniversityFederico II, Via Pansini 5, 80128 Naples,Italy.
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Abstract
INTRODUCTION Thymic carcinomas represent the most aggressive histotype of thymic epithelial tumors (TETs). The 2004 World Health Organization classification has assigned a subgroup of thymic carcinomas as t(15;19) carcinomas based on the presence of t(15;19), a translocation found in poorly differentiated and highly aggressive NUT midline carcinomas. These tumors are characterized byrearrangement of the NUT (nuclear protein in testis) gene on chromosome 15q14, which in most cases fuses to the bromodomain containing 4 (BRD4) gene on chromosome 19 p13.1 through reciprocal t(15;19) translocation, resulting in constitutive BRD4-NUTfusion protein expression. To our knowledge, NUT translocation has been reported only in four thymic carcinomas. Due to the rarity of TETs, the prevalence of NUT rearrangement in TETs has however never been systematically explored. METHODS Formalin-fixed paraffin-embedded samples of histologically confirmed TETs were evaluated for NUT expression and rearrangement by immunohistochemistry and fluorescence in situ hybridization, respectively. RESULTS A series of 148 TETs (37 carcinomas and 111 thymomas) were examined for NUT expression and rearrangement. Only one thymic carcinoma (2.7% of thymic carcinomas or 0.68% of TETs) was found positive for NUT expression and rearrangement. CONCLUSIONS Rearrangement of NUT is infrequent in TETs. We propose that caution should be taken to distinguish t(15;19) thymic carcinoma from other mediastinal carcinomas, as NUT midline carcinomas are often associated with dreadful prognosis or overt lethality.
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Kelly RJ, Petrini I, Rajan A, Wang Y, Giaccone G. Thymic malignancies: from clinical management to targeted therapies. J Clin Oncol 2011; 29:4820-7. [PMID: 22105817 PMCID: PMC3675690 DOI: 10.1200/jco.2011.36.0487] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 08/03/2011] [Indexed: 12/14/2022] Open
Abstract
PURPOSE A key challenge in the treatment of thymoma and thymic carcinoma (TC) is in improving our understanding of the molecular biology of these relatively rare tumors. In recent years, significant efforts have been made to dissect the molecular pathways involved in their carcinogenesis. Here we discuss the results of large-scale genomic analyses conducted to date and review the most active chemotherapies and targeted treatments. METHODS We reviewed the literature for chemotherapeutic trials in the last 20 years and trials involving targeted therapies between 1999 and 2010. The search was supplemented by a review of abstracts presented at the annual meetings of the American Society of Clinical Oncology (from 1999 to 2010), at the first International Conference on Thymic Malignancies in 2009, and at a follow-up meeting of the newly formed International Thymic Malignancies Interest Group in 2010. RESULTS Surgery remains the treatment of choice for operable tumors, whereas chemotherapy is standard in locally advanced and metastatic disease. Thus far, targeted therapies have been developed empirically. Histone deacetylase inhibitors have shown some activity in thymoma whereas sunitinib may be active in TC. There are no data to support the use of HER2- or EGFR-targeted therapies in thymic malignancies. CONCLUSION Drug development for the treatment of thymic malignancies is difficult because of the rarity of these tumors. Ethnic differences are becoming apparent, with aggressive subtypes being observed in Asians and African Americans. Incremental improvements in our understanding of tumor biology suggest that molecular profiling-directed therapies may be the preferred route of investigation in the future.
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Affiliation(s)
- Ronan J. Kelly
- All authors: National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Iacopo Petrini
- All authors: National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Arun Rajan
- All authors: National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Yisong Wang
- All authors: National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Giuseppe Giaccone
- All authors: National Cancer Institute, National Institutes of Health, Bethesda, MD
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Heat Shock Protein 90-Sheltered Overexpression of Insulin-Like Growth Factor 1 Receptor Contributes to Malignancy of Thymic Epithelial Tumors. Clin Cancer Res 2011; 17:2237-49. [DOI: 10.1158/1078-0432.ccr-10-1689] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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