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Li W, Zhang M, Cai S, Li S, Yang B, Zhou S, Pan Y, Xu S. A deep learning-based model (DeepMPM) to help predict survival in patients with malignant pleural mesothelioma. Transl Cancer Res 2023; 12:2887-2897. [PMID: 37969363 PMCID: PMC10643950 DOI: 10.21037/tcr-23-422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/14/2023] [Indexed: 11/17/2023]
Abstract
Background Malignant pleural mesothelioma (MPM) is a rare disease with limited treatment and poor prognosis, and a precise and reliable means to predicting MPM remains lacking for clinical use. Methods In the population-based cohort study, we collected clinical characteristics from the Surveillance, Epidemiology, and End Results (SEER) database. According to the time of diagnosis, the SEER data were divided into 2 cohorts: the training cohort (from 2010 to 2016) and the test cohort (from 2017 to 2019). The training cohort was used to train a deep learning-based predictive model derived from DeepSurv theory, which was validated by both the training and the test cohorts. All clinical characteristics were included and analyzed using Cox proportional risk regression or Kaplan-Meier curve to determine the risk factors and protective factors of MPM. Results The survival model included 3,130 cases (2,208 in the training cohort and 922 in the test cohort). As for model's performance, the area under the receiver operating characteristics curve (AUC) was 0.7037 [95% confidence interval (CI): 0.7030-0.7045] in the training cohort and 0.7076 (95% CI: 0.7067-0.7086) in the test cohort. Older age; male sex, sarcomatoid mesothelioma; and T4, N2, and M1 stage tended to be the risk factors for survival. Meanwhile, epithelioid mesothelioma, surgery, radiotherapy, and chemotherapy tended to be the protective factors. The median overall survival (OS) of patients who underwent surgery combined with radiotherapy was the longest, followed by those who underwent a combination of surgery, radiotherapy, and chemotherapy. Conclusions Our deep learning-based model precisely could predict the survival of patients with MPM; moreover, multimode combination therapy might provide more meaningful survival benefits.
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Affiliation(s)
- Wei Li
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Minghang Zhang
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Siyu Cai
- Dermatology Department, General Hospital of Western Theater Command, Chengdu, China
| | - Siqi Li
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Biao Yang
- Surgical Intensive Care Unit, Medical Center Hospital of Qionglai City, Chengdu, China
| | - Shijie Zhou
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Yuanming Pan
- Cancer Research Center, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Shaofa Xu
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
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2
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Vannucchi M, Pennati V, Mencaroni C, Defraia C, Bardhi L, Castiglione F, Bellan C, Comin CE. KRAS Mutations Are Associated with Shortened Survival in Patients with Epithelioid Malignant Pleural Mesothelioma. Cancers (Basel) 2023; 15:cancers15072072. [PMID: 37046732 PMCID: PMC10093256 DOI: 10.3390/cancers15072072] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/24/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023] Open
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive malignancy of the pleural surface that includes three major histologic subtypes, epitheliod, sarcomatoid and biphasic. Epithelioid mesothelioma is usually associated with better prognosis. The genetic mechanisms driving MPM, the possible target mutations and the correlation with overall survival remain largely unsettled. We performed target exome sequencing in 29 cases of MPM aimed at identifying somatic mutations and, eventually, their correlation with phenotypic traits and prognostic significance. We found that KRAS mutations, occurring in 13.7% of cases, were associated with shortened median survival (7.6 versus 32.6 months in KRAS wild-type; p = 0.005), as it was the occurrence of any ≥3 mutations (7.6 versus 37.6 months; p = 0.049). Conversely, the presence of KDR single nucleotide polymorphism p.V297I (rs2305948) resulted in a favorable variable for survival (NR versus 23.4 months; p = 0.026). With the intrinsic limitations of a small number of cases and patient heterogeneity, results of this study contribute to the characterization of the mutation profile of MPM and the impact of selected somatic mutations, and possibly KDR polymorphism, on prognosis.
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Affiliation(s)
- Margherita Vannucchi
- Section of Pathology, Department of Medical Biotechnology, University of Siena, 53100 Siena, Italy
- Correspondence:
| | - Veronica Pennati
- Division of Pathological anatomy, Department of Medical and Surgical Critical Care, University of Florence, 50121 Florence, Italy
| | - Clelia Mencaroni
- Division of Pathological anatomy, Department of Medical and Surgical Critical Care, University of Florence, 50121 Florence, Italy
| | - Chiara Defraia
- Section of Pathology, Department of Medical Biotechnology, University of Siena, 53100 Siena, Italy
| | - Ledi Bardhi
- Section of Pathology, Department of Medical Biotechnology, University of Siena, 53100 Siena, Italy
| | - Francesca Castiglione
- Division of Pathological anatomy, Department of Medical and Surgical Critical Care, University of Florence, 50121 Florence, Italy
| | - Cristiana Bellan
- Section of Pathology, Department of Medical Biotechnology, University of Siena, 53100 Siena, Italy
| | - Camilla Eva Comin
- Department of Experimental and Clinical Medicine, Section of Surgery, Histopathology and Molecular Pathology, University of Florence, 50121 Florence, Italy
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3
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Allione A, Viberti C, Cotellessa I, Catalano C, Casalone E, Cugliari G, Russo A, Guarrera S, Mirabelli D, Sacerdote C, Gentile M, Eichelmann F, Schulze MB, Harlid S, Eriksen AK, Tjønneland A, Andersson M, Dollé MET, Van Puyvelde H, Weiderpass E, Rodriguez-Barranco M, Agudo A, Heath AK, Chirlaque MD, Truong T, Dragic D, Severi G, Sieri S, Sandanger TM, Ardanaz E, Vineis P, Matullo G. Blood cell DNA methylation biomarkers in preclinical malignant pleural mesothelioma: The EPIC prospective cohort. Int J Cancer 2023; 152:725-737. [PMID: 36305648 DOI: 10.1002/ijc.34339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 02/01/2023]
Abstract
Malignant pleural mesothelioma (MPM) is a rare and aggressive cancer mainly caused by asbestos exposure. Specific and sensitive noninvasive biomarkers may facilitate and enhance screening programs for the early detection of cancer. We investigated DNA methylation (DNAm) profiles in MPM prediagnostic blood samples in a case-control study nested in the European Prospective Investigation into Cancer and nutrition (EPIC) cohort, aiming to characterise DNAm biomarkers associated with MPM. From the EPIC cohort, we included samples from 135 participants who developed MPM during 20 years of follow-up and from 135 matched, cancer-free, controls. For the discovery phase we selected EPIC participants who developed MPM within 5 years from enrolment (n = 36) with matched controls. We identified nine differentially methylated CpGs, selected by 10-fold cross-validation and correlation analyses: cg25755428 (MRI1), cg20389709 (KLF11), cg23870316, cg13862711 (LHX6), cg06417478 (HOOK2), cg00667948, cg01879420 (AMD1), cg25317025 (RPL17) and cg06205333 (RAP1A). Receiver operating characteristic (ROC) analysis showed that the model including baseline characteristics (age, sex and PC1wbc) along with the nine MPM-related CpGs has a better predictive value for MPM occurrence than the baseline model alone, maintaining some performance also at more than 5 years before diagnosis (area under the curve [AUC] < 5 years = 0.89; AUC 5-10 years = 0.80; AUC >10 years = 0.75; baseline AUC range = 0.63-0.67). DNAm changes as noninvasive biomarkers in prediagnostic blood samples of MPM cases were investigated for the first time. Their application can improve the identification of asbestos-exposed individuals at higher MPM risk to possibly adopt more intensive monitoring for early disease identification.
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Affiliation(s)
| | - Clara Viberti
- Department of Medical Sciences, University of Turin, Turin, Italy
| | | | - Chiara Catalano
- Department of Medical Sciences, University of Turin, Turin, Italy
| | | | | | - Alessia Russo
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Simonetta Guarrera
- IIGM-Italian Institute for Genomic Medicine, c/o IRCCS, Turin, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Dario Mirabelli
- Cancer Epidemiology Unit, Department of Medical Sciences, University of Turin, Turin, Italy
- Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates "G. Scansetti", University of Turin, Turin, Italy
| | - Carlotta Sacerdote
- Unit of Cancer Epidemiology, Città Della Salute e Della Scienza University-Hospital and Center for Cancer Prevention (CPO), Turin, Italy
| | | | - Fabian Eichelmann
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Matthias B Schulze
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- University of Potsdam, Institute of Nutritional Science, Nuthetal, Germany
| | - Sophia Harlid
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Anne Kirstine Eriksen
- Danish Cancer Society Research Center, Diet, Genes and Environment, Copenhagen, Denmark
| | - Anne Tjønneland
- Danish Cancer Society Research Center, Diet, Genes and Environment, Copenhagen, Denmark
- Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Martin Andersson
- Department of Public Health and Clinical Medicine, Sustainable Health, Umeå University, Umeå, Sweden
| | - Martijn E T Dollé
- Centre for Health Protection National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - Heleen Van Puyvelde
- International Agency for Research on Cancer, World Health Organisation, Lyon, France
| | - Elisabete Weiderpass
- International Agency for Research on Cancer, World Health Organisation, Lyon, France
| | - Miguel Rodriguez-Barranco
- Escuela Andaluza de Salud Pública (EASP), Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- CIBER in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Antonio Agudo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology-ICO, L'Hospitalet de Llobregat, Barcelona, Spain
- Nutrition and Cancer Group, Epidemiology, Public Health, Cancer Prevention and Palliative Care Program, Bellvitge Biomedical Research Institute-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Alicia K Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - María-Dolores Chirlaque
- CIBER in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Epidemiology, Regional Health Council, IMIB-Arrixaca, Murcia University, Murcia, Spain
| | - Thérèse Truong
- Université Paris-Saclay, UVSQ, Inserm, CESP U1018, "Exposome, Heredity, Cancer and Health" Team, Paris, France
| | - Dzevka Dragic
- Université Paris-Saclay, UVSQ, Inserm, CESP U1018, "Exposome, Heredity, Cancer and Health" Team, Paris, France
- Centre de Recherche sur le Cancer de l'Université Laval, Département de Médecine Sociale et Préventive, Faculté de Médecine, Québec, Canada
- Axe Oncologie, Centre de Recherche du CHU de Québec-Université Laval, Québec, Canada
| | - Gianluca Severi
- Université Paris-Saclay, UVSQ, Inserm, CESP U1018, "Exposome, Heredity, Cancer and Health" Team, Paris, France
- Department of Statistics, Computer Science and Applications "G. Parenti" (DISIA), University of Florence, Florence, Italy
| | - Sabina Sieri
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano Via Venezian, Milan, Italy
| | - Torkjel M Sandanger
- Department of Community Medicine, UiT The Arctic University of Norway, Tromsø, Norway
| | - Eva Ardanaz
- CIBER in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Navarra Public Health Institute, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Paolo Vineis
- MRC Centre for Environment and Health, Imperial College London, London, UK
| | - Giuseppe Matullo
- Department of Medical Sciences, University of Turin, Turin, Italy
- Interdepartmental Center for Studies on Asbestos and Other Toxic Particulates "G. Scansetti", University of Turin, Turin, Italy
- Medical Genetics Unit, AOU Città della Salute e Della Scienza, Turin, Italy
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Terenziani R, Galetti M, La Monica S, Fumarola C, Zoppi S, Alfieri R, Digiacomo G, Cavazzoni A, Cavallo D, Corradi M, Tiseo M, Petronini PG, Bonelli M. CDK4/6 Inhibition Enhances the Efficacy of Standard Chemotherapy Treatment in Malignant Pleural Mesothelioma Cells. Cancers (Basel) 2022; 14:cancers14235925. [PMID: 36497412 PMCID: PMC9739278 DOI: 10.3390/cancers14235925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 11/22/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The loss of the CDKN2A/ARF (cyclin-dependent kinase inhibitor 2A/alternative reading frame) gene is the most common alteration in malignant pleural mesothelioma (MPM), with an incidence of about 70%, thus representing a novel target for mesothelioma treatment. In the present study, we evaluated the antitumor potential of combining the standard chemotherapy regimen used for unresectable MPM with the CDK4/6 (cyclin-dependent kinase 4 or 6) inhibitor abemaciclib. METHODS Cell viability, cell death, senescence, and autophagy induction were evaluated in two MPM cell lines and in a primary MPM cell culture. RESULTS The simultaneous treatment of abemaciclib with cisplatin and pemetrexed showed a greater antiproliferative effect than chemotherapy alone, both in MPM cell lines and in primary cells. This combined treatment induced cellular senescence or autophagic cell death, depending on the cell type. More in detail, the induction of cellular senescence was related to the increased expression of p21, whereas autophagy induction was due to the impairment of the AKT/mTOR signaling. Notably, the effect of the combination was irreversible and no resumption in tumor cell proliferation was observed after drug withdrawal. CONCLUSION Our results demonstrated the therapeutic potential of CDK4/6 inhibitors in combination with chemotherapy for the treatment of MPM and are consistent with the recent positive results in the MiST2 arm in abemaciclib-treated patients.
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Affiliation(s)
- Rita Terenziani
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Maricla Galetti
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-Italian Workers’ Compensation Authority, Monte Porzio Catone, 00078 Rome, Italy
- Correspondence: (M.G.); (S.L.M.); Tel.: +39-0521-033764 (M.G.); +39-0521-033747 (S.L.M.)
| | - Silvia La Monica
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
- Correspondence: (M.G.); (S.L.M.); Tel.: +39-0521-033764 (M.G.); +39-0521-033747 (S.L.M.)
| | - Claudia Fumarola
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Silvia Zoppi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Roberta Alfieri
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Graziana Digiacomo
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Andrea Cavazzoni
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
| | - Delia Cavallo
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-Italian Workers’ Compensation Authority, Monte Porzio Catone, 00078 Rome, Italy
| | - Massimo Corradi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
- Center of Excellence for Toxicological Research (CERT), University of Parma, 43126 Parma, Italy
| | - Marcello Tiseo
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
- Medical Oncology Unit, University Hospital of Parma, 43126 Parma, Italy
| | | | - Mara Bonelli
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
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5
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Usuda K, Niida Y, Ishikawa M, Iwai S, Yamagata A, Iijima Y, Motono N, Yamada S, Uramoto H. Genomics of Tumor Origin and Characteristics for Adenocarcinoma and Malignant Pleural Mesothelioma: A Case Report. Front Oncol 2022; 12:858094. [PMID: 35664766 PMCID: PMC9160749 DOI: 10.3389/fonc.2022.858094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 03/30/2022] [Indexed: 12/24/2022] Open
Abstract
A female underwent a right middle lobectomy for a pulmonary adenocarcinoma (AD). She eventually died of a right malignant pleural mesothelioma (MPM; sarcomatoid type) 4 years and 7 months after the removal of the AD even though she did not have any history of asbestos exposure, smoking, or radiation exposure. Her chest CT revealed multiple pulmonary nodules and bilateral pleural effusion with a right pleural tumor directly invading into the abdominal cavity. The genomics of tumor origin and characteristics were examined for the AD and the MPM. As a result, 50 somatic variants were detected in the AD, and 29 somatic variants were detected in the MPM. The variants which were common in both the AD and the MPM were not present, which suggested that the AD and the MPM had occurred independently in different origins. The MPM had two driver oncogenes of TP53 and EP300, but the AD did not. Two driver oncogenes of TP53 and EP300 were hypothesized to make the MPM aggressive. The speed at which the MPM progressed without the patient having a history of asbestos exposure, smoking, or radiation exposure was alarming.
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Affiliation(s)
- Katsuo Usuda
- Department of Thoracic Surgery, Kanazawa Medical University, Kahoku-gun, Japan.,Department of Rehabilitation Medicine, Shimada Hospital, Fukui, Japan
| | - Yo Niida
- Center for Clinical Genomics, Kanazawa Medical University, Kahoku-gun, Japan.,Division of Genomic Medicine, Kanazawa Medical University, Kahoku-gun, Japan
| | - Masahito Ishikawa
- Department of Thoracic Surgery, Kanazawa Medical University, Kahoku-gun, Japan
| | - Shun Iwai
- Department of Thoracic Surgery, Kanazawa Medical University, Kahoku-gun, Japan
| | - Aika Yamagata
- Department of Thoracic Surgery, Kanazawa Medical University, Kahoku-gun, Japan
| | - Yoshihito Iijima
- Department of Thoracic Surgery, Kanazawa Medical University, Kahoku-gun, Japan
| | - Nozomu Motono
- Department of Thoracic Surgery, Kanazawa Medical University, Kahoku-gun, Japan
| | - Sohsuke Yamada
- Department of Pathology and Laboratory Medicine, Kanazawa Medical University, Kahoku-gun, Japan
| | - Hidetaka Uramoto
- Department of Thoracic Surgery, Kanazawa Medical University, Kahoku-gun, Japan
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Fortarezza F, Pezzuto F, Marzullo A, Cavone D, Romano DE, d'Amati A, Serio G, Vimercati L. Molecular Pathways in Peritoneal Mesothelioma: A Minireview of New Insights. Front Oncol 2022; 12:823839. [PMID: 35223506 PMCID: PMC8866824 DOI: 10.3389/fonc.2022.823839] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Accepted: 01/17/2022] [Indexed: 12/24/2022] Open
Abstract
Mesothelioma is a rare malignant neoplasm with poor survival. It mainly affects the pleura (90%) but can arise in all serous cavities: peritoneum (5-10%), pericardium and tunica vaginalis testis (<1%). The onset of pleural mesothelioma is strictly related to asbestos exposure with a long latency time. The causal link with asbestos has also been suggested for peritoneal mesothelioma, while the importance of exposure in the onset of pericardial and tunica vaginalis testis mesotheliomas is not well known. Mesothelioma remains an aggressive and fatal disease with a five-year mortality rate higher than 95%. However, new therapeutic approaches based on molecular-targeted and immunomodulatory therapies are being explored but have conflicting results. In this context, the identification of critical targets appears mandatory. Awareness of the molecular and physiological changes leading to the neoplastic degeneration of mesothelial cells and the identification of gene mutations, epigenetic alterations, gene expression profiles and altered pathways could be helpful for selecting targetable mechanisms and molecules. In this review, we aimed to report recent research in the last 20 years focusing on the molecular pathways and prognostic factors in peritoneal mesothelioma and their possible diagnostic and therapeutic implications.
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Affiliation(s)
- Francesco Fortarezza
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Pathology Unit, University of Padova, Padova, Italy
| | - Federica Pezzuto
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health, Pathology Unit, University of Padova, Padova, Italy
| | - Andrea Marzullo
- Department of Emergency and Organ Transplantation, Pathology Unit, University of Bari, Bari, Italy
| | - Domenica Cavone
- Department of Interdisciplinary Medicine, Occupational Health Unit, University of Bari, Bari, Italy
| | - Daniele Egidio Romano
- Department of Emergency and Organ Transplantation, Pathology Unit, University of Bari, Bari, Italy
| | - Antonio d'Amati
- Department of Emergency and Organ Transplantation, Pathology Unit, University of Bari, Bari, Italy
| | - Gabriella Serio
- Department of Emergency and Organ Transplantation, Pathology Unit, University of Bari, Bari, Italy
| | - Luigi Vimercati
- Department of Interdisciplinary Medicine, Occupational Health Unit, University of Bari, Bari, Italy
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7
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Santoni-Rugiu E, Lü MJS, Jakobsen JN, Melchior LC, Ravn J, Sørensen JB. Correlation of MET-Receptor Overexpression with MET Gene Amplification and Patient Outcome in Malignant Mesothelioma. Int J Mol Sci 2021; 22:ijms222312868. [PMID: 34884673 PMCID: PMC8657838 DOI: 10.3390/ijms222312868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 11/30/2022] Open
Abstract
Thanks to clinically newly introduced inhibitors of the mesenchymal–epithelial transition (MET) receptor tyrosine-kinase, MET-gene copy number gain/amplification (MET-GCNG/GA) and increased expression of the MET protein are considered very promising therapeutic targets in lung cancer and other malignancies. However, to which extent these MET alterations occur in malignant mesothelioma (MM) remains unclear. Thus, we investigated by well-established immunohistochemistry and fluorescence in situ hybridization methods, the frequency of these alterations in specimens from 155 consecutive MMs of different subtypes obtained from pleural or peritoneal biopsies and pleurectomies. Thirty-three benign reactive mesothelial proliferations (RMPs) were used as controls. MET-protein upregulation was observed in 35% of all MM-cases, though restricted to predominantly epithelioid MMs. We detected low-/intermediate-level MET-GCNG/GA in 22.2% of MET-overexpressing MMs (7.8% of whole MM-cohort) and no MET-GCNG/GA in the other 77.8%, suggesting other upregulating mechanisms. In contrast, 100% of RMPs exhibited no MET-upregulation or MET-GCNG/-GA. Neither MET exon 14 skipping mutations nor MET-fusions were detected as mechanisms of MET overexpression in MM using RNA next-generation sequencing. Finally, in two cohorts of 30 MM patients with or without MET overexpression (MET-positive/-negative) that were matched for several variables and received the same standard chemotherapy, the MET-positive cases showed a significantly lower response rate, but no significant difference in progression-free or overall survival. Our results imply that MET overexpression occurs in a substantial fraction of predominantly epithelioid MMs, but correlates poorly with MET-amplification status, and may impact the likelihood of response to mesothelioma standard chemotherapy. The predictive significance of MET-IHC and -FISH for possible MET-targeted therapy of MM remains to be elucidated.
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Affiliation(s)
- Eric Santoni-Rugiu
- Department of Pathology/Danish National Mesothelioma Center, Rigshospitalet, Copenhagen University Hospital, DK-2100 Copenhagen, Denmark;
- Biotech Research & Innovation Centre (BRIC), University of Copenhagen, DK-2200 Copenhagen, Denmark
- Correspondence: (E.S.-R.); (J.B.S.)
| | - Maya Jeje Schuang Lü
- Department of Oncology/Danish National Mesothelioma Center, Rigshospitalet, Copenhagen University Hospital, DK-2100 Copenhagen, Denmark; (M.J.S.L.); (J.N.J.)
| | - Jan Nyrop Jakobsen
- Department of Oncology/Danish National Mesothelioma Center, Rigshospitalet, Copenhagen University Hospital, DK-2100 Copenhagen, Denmark; (M.J.S.L.); (J.N.J.)
| | - Linea Cecilie Melchior
- Department of Pathology/Danish National Mesothelioma Center, Rigshospitalet, Copenhagen University Hospital, DK-2100 Copenhagen, Denmark;
| | - Jesper Ravn
- Department of Thoracic Surgery/Danish National Mesothelioma Center, Copenhagen University Hospital, DK-2100 Copenhagen, Denmark;
| | - Jens Benn Sørensen
- Department of Oncology/Danish National Mesothelioma Center, Rigshospitalet, Copenhagen University Hospital, DK-2100 Copenhagen, Denmark; (M.J.S.L.); (J.N.J.)
- Correspondence: (E.S.-R.); (J.B.S.)
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8
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The Collagen Receptor uPARAP in Malignant Mesothelioma: A Potential Diagnostic Marker and Therapeutic Target. Int J Mol Sci 2021; 22:ijms222111452. [PMID: 34768883 PMCID: PMC8583732 DOI: 10.3390/ijms222111452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 12/13/2022] Open
Abstract
Malignant mesothelioma (MM) is a highly aggressive cancer with limited therapeutic options. We have previously shown that the endocytic collagen receptor, uPARAP, is upregulated in certain cancers and can be therapeutically targeted. Public RNA expression data display uPARAP overexpression in MM. Thus, to evaluate its potential use in diagnostics and therapy, we quantified uPARAP expression by immunohistochemical H-score in formalin-fixed paraffin-embedded bioptic/surgical human tissue samples and tissue microarrays. We detected pronounced upregulation of uPARAP in the three main MM subtypes compared to non-malignant reactive mesothelial proliferations, with higher expression in sarcomatoid and biphasic than in epithelioid MM. The upregulation appeared to be independent of patients’ asbestos exposure and unaffected after chemotherapy. Using immunoblotting, we demonstrated high expression of uPARAP in MM cell lines and no expression in a non-malignant mesothelial cell line. Moreover, we showed the specific internalization of an anti-uPARAP monoclonal antibody by the MM cell lines using flow cytometry-based assays and confocal microscopy. Finally, we demonstrated the sensitivity of these cells towards sub-nanomolar concentrations of an antibody-drug conjugate formed with the uPARAP-directed antibody and a potent cytotoxin that led to efficient, uPARAP-specific eradication of the MM cells. Further studies on patient cohorts and functional preclinical models will fully reveal whether uPARAP could be exploited in diagnostics and therapeutic targeting of MM.
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Liao D, Yu Y, Mei Q, Wang Z, Li X, Jia Y, Kong F. Advances in Immunotherapy of Malignant Pleural Mesothelioma. Onco Targets Ther 2021; 14:4477-4484. [PMID: 34429612 PMCID: PMC8374846 DOI: 10.2147/ott.s317434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 06/29/2021] [Indexed: 12/25/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) represents the uncommon cancer originating from pleural mesothelial cells, which is associated with dismal prognostic outcome. According to CheckMate-743 results, nivolumab plus ipilimumab has been approved to treat the unresectable MPM in treatment-naive patients as a first-line therapy by the FDA in October 2020. Immunotherapy is expected to be the best choice for MPM treatment. In the following article, the past treatment plan and the progress of immunotherapy for MPM will be reviewed.
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Affiliation(s)
- Dongying Liao
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, 300193, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Nankai District, Tianjin, 300193, People’s Republic of China
| | - Yongchao Yu
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, 300193, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Nankai District, Tianjin, 300193, People’s Republic of China
| | - Qingyun Mei
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, 300193, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Nankai District, Tianjin, 300193, People’s Republic of China
| | - Ziwei Wang
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, 300193, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Nankai District, Tianjin, 300193, People’s Republic of China
| | - Xiaojiang Li
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, 300193, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Nankai District, Tianjin, 300193, People’s Republic of China
| | - Yingjie Jia
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, 300193, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Nankai District, Tianjin, 300193, People’s Republic of China
| | - Fanming Kong
- Department of Oncology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Nankai District, Tianjin, 300193, People’s Republic of China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Nankai District, Tianjin, 300193, People’s Republic of China
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Dipper A, Maskell N, Bibby A. Ancillary Diagnostic Investigations in Malignant Pleural Mesothelioma. Cancers (Basel) 2021; 13:cancers13133291. [PMID: 34209209 PMCID: PMC8268996 DOI: 10.3390/cancers13133291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 06/18/2021] [Indexed: 12/13/2022] Open
Abstract
For a number of patients presenting with an undiagnosed pleural effusion, frailty, medical co-morbidity or personal choice may preclude the use of pleural biopsy, the gold standard investigation for diagnosis of malignant pleural mesothelioma (MPM). In this review article, we outline the most recent evidence on ancillary diagnostic tests which may be used to support a diagnosis of MPM where histological samples cannot be obtained or where results are non-diagnostic. Immunocytochemical markers, molecular techniques, diagnostic biomarkers and imaging techniques are discussed. No adjunctive test has a sensitivity and specificity profile to support use in isolation; however, correlation of pleural fluid cytology with relevant radiology and supplementary biomarkers can enable an MDT-consensus clinico-radiological-cytological diagnosis to be made where further invasive tests are not possible or not appropriate. Diagnostic challenges surrounding non-epithelioid MPM are recognised, and there is a critical need for reliable and non-invasive investigative tools in this population.
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11
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Hiltbrunner S, Mannarino L, Kirschner MB, Opitz I, Rigutto A, Laure A, Lia M, Nozza P, Maconi A, Marchini S, D’Incalci M, Curioni-Fontecedro A, Grosso F. Tumor Immune Microenvironment and Genetic Alterations in Mesothelioma. Front Oncol 2021; 11:660039. [PMID: 34249695 PMCID: PMC8261295 DOI: 10.3389/fonc.2021.660039] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/25/2021] [Indexed: 12/15/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is a rare and fatal disease of the pleural lining. Up to 80% of the MPM cases are linked to asbestos exposure. Even though its use has been banned in the industrialized countries, the cases continue to increase. MPM is a lethal cancer, with very little survival improvements in the last years, mirroring very limited therapeutic advances. Platinum-based chemotherapy in combination with pemetrexed and surgery are the standard of care, but prognosis is still unacceptably poor with median overall survival of approximately 12 months. The genomic landscape of MPM has been widely characterized showing a low mutational burden and the impairment of tumor suppressor genes. Among them, BAP1 and BLM are present as a germline inactivation in a small subset of patients and increases predisposition to tumorigenesis. Other studies have demonstrated a high frequency of mutations in DNA repair genes. Many therapy approaches targeting these alterations have emerged and are under evaluation in the clinic. High-throughput technologies have allowed the detection of more complex molecular events, like chromotripsis and revealed different transcriptional programs for each histological subtype. Transcriptional analysis has also paved the way to the study of tumor-infiltrating cells, thus shedding lights on the crosstalk between tumor cells and the microenvironment. The tumor microenvironment of MPM is indeed crucial for the pathogenesis and outcome of this disease; it is characterized by an inflammatory response to asbestos exposure, involving a variety of chemokines and suppressive immune cells such as M2-like macrophages and regulatory T cells. Another important feature of MPM is the dysregulation of microRNA expression, being frequently linked to cancer development and drug resistance. This review will give a detailed overview of all the above mentioned features of MPM in order to improve the understanding of this disease and the development of new therapeutic strategies.
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Affiliation(s)
- Stefanie Hiltbrunner
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Laura Mannarino
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milano, Italy
| | | | - Isabelle Opitz
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Angelica Rigutto
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Alexander Laure
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Michela Lia
- Mesothelioma Unit, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Paolo Nozza
- Department of Pathology, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Antonio Maconi
- Infrastruttura Ricerca Formazione Innovazione (IRFI), Dipartimento Attività Integrate Ricerca e Innovazione (DAIRI), Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
| | - Sergio Marchini
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milano, Italy
| | - Maurizio D’Incalci
- Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Milano, Italy
| | - Alessandra Curioni-Fontecedro
- Department of Medical Oncology and Hematology, University Hospital Zurich, Zurich, Switzerland
- Comprehensive Cancer Center Zurich, University of Zurich, Zurich, Switzerland
| | - Federica Grosso
- Mesothelioma Unit, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
- Translational Medicine, Dipartimento Attività Integrate Ricerca e Innovazione (DAIRI), Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, Italy
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Napoli F, Listì A, Zambelli V, Witel G, Bironzo P, Papotti M, Volante M, Scagliotti G, Righi L. Pathological Characterization of Tumor Immune Microenvironment (TIME) in Malignant Pleural Mesothelioma. Cancers (Basel) 2021; 13:2564. [PMID: 34073720 PMCID: PMC8197227 DOI: 10.3390/cancers13112564] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/17/2021] [Accepted: 05/19/2021] [Indexed: 02/08/2023] Open
Abstract
Malignant pleural mesothelioma (MPM) is a rare and highly aggressive disease that arises from pleural mesothelial cells, characterized by a median survival of approximately 13-15 months after diagnosis. The primary cause of this disease is asbestos exposure and the main issues associated with it are late diagnosis and lack of effective therapies. Asbestos-induced cellular damage is associated with the generation of an inflammatory microenvironment that influences and supports tumor growth, possibly in association with patients' genetic predisposition and tumor genomic profile. The chronic inflammatory response to asbestos fibers leads to a unique tumor immune microenvironment (TIME) composed of a heterogeneous mixture of stromal, endothelial, and immune cells, and relative composition and interaction among them is suggested to bear prognostic and therapeutic implications. TIME in MPM is known to be constituted by immunosuppressive cells, such as type 2 tumor-associated macrophages and T regulatory lymphocytes, plus the expression of several immunosuppressive factors, such as tumor-associated PD-L1. Several studies in recent years have contributed to achieve a greater understanding of the pathogenetic mechanisms in tumor development and pathobiology of TIME, that opens the way to new therapeutic strategies. The study of TIME is fundamental in identifying appropriate prognostic and predictive tissue biomarkers. In the present review, we summarize the current knowledge about the pathological characterization of TIME in MPM.
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Affiliation(s)
- Francesca Napoli
- Department of Oncology, University of Turin, 10043 Orbassano, Italy; (F.N.); (V.Z.); (P.B.); (M.P.); (M.V.); (G.S.)
| | - Angela Listì
- Thoracic Oncology Unit, San Luigi Hospital, 10043 Orbassano, Italy;
| | - Vanessa Zambelli
- Department of Oncology, University of Turin, 10043 Orbassano, Italy; (F.N.); (V.Z.); (P.B.); (M.P.); (M.V.); (G.S.)
| | - Gianluca Witel
- Department of Medical Sciences, University of Turin, City of Health and Science, 10126 Torino, Italy;
| | - Paolo Bironzo
- Department of Oncology, University of Turin, 10043 Orbassano, Italy; (F.N.); (V.Z.); (P.B.); (M.P.); (M.V.); (G.S.)
- Thoracic Oncology Unit, San Luigi Hospital, 10043 Orbassano, Italy;
| | - Mauro Papotti
- Department of Oncology, University of Turin, 10043 Orbassano, Italy; (F.N.); (V.Z.); (P.B.); (M.P.); (M.V.); (G.S.)
- Pathology Unit, City of Health and Science, 10126 Torino, Italy
| | - Marco Volante
- Department of Oncology, University of Turin, 10043 Orbassano, Italy; (F.N.); (V.Z.); (P.B.); (M.P.); (M.V.); (G.S.)
| | - Giorgio Scagliotti
- Department of Oncology, University of Turin, 10043 Orbassano, Italy; (F.N.); (V.Z.); (P.B.); (M.P.); (M.V.); (G.S.)
- Thoracic Oncology Unit, San Luigi Hospital, 10043 Orbassano, Italy;
| | - Luisella Righi
- Department of Oncology, University of Turin, 10043 Orbassano, Italy; (F.N.); (V.Z.); (P.B.); (M.P.); (M.V.); (G.S.)
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Tatsuta T, Nakasato A, Sugawara S, Hosono M. Transcriptomic alterations in malignant pleural mesothelioma cells in response to long‑term treatment with bullfrog sialic acid‑binding lectin. Mol Med Rep 2021; 23:467. [PMID: 33880588 PMCID: PMC8097763 DOI: 10.3892/mmr.2021.12106] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/29/2021] [Indexed: 12/18/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is a universally lethal type of cancer that is increasing in incidence worldwide; therefore, the development of new drugs for MPM is an urgent task. Bullfrog sialic acid-binding lectin (cSBL) is a multifunctional protein that has carbohydrate-binding and ribonuclease activities. cSBL exerts marked antitumor activity against numerous types of cancer cells, with low toxicity to normal cells. Although in vitro and in vivo studies revealed that cSBL was effective against MPM, the mechanism by which cSBL exerts antitumor effects is not fully understood. To further understand the mechanism of action of cSBL, the present study aimed to identify the key molecules whose expression was affected by cSBL. The present study established cSBL-resistant MPM cells. Microarray analyses revealed that there were significant pleiotropic changes in the expression profiles of several genes, including multiple genes involved in metabolic pathways in cSBL-resistant cells. Furthermore, the expression of some members of the aldo-keto reductase family was revealed to be markedly downregulated in these cells. Among these, it was particularly interesting that cSBL action reduced the level of AKR1B10, which has been reported as a biomarker candidate for MPM prognosis. These findings revealed novel aspects of the effect of cSBL, which may contribute to the development of new therapeutic strategies for MPM.
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Affiliation(s)
- Takeo Tatsuta
- Division of Cell Recognition, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi 981‑8558, Japan
| | - Arisu Nakasato
- Division of Cell Recognition, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi 981‑8558, Japan
| | - Shigeki Sugawara
- Division of Cell Recognition, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi 981‑8558, Japan
| | - Masahiro Hosono
- Division of Cell Recognition, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Miyagi 981‑8558, Japan
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Higuchi R, Goto T, Hirotsu Y, Otake S, Oyama T, Amemiya K, Mochizuki H, Omata M. Streptococcus australis and Ralstonia pickettii as Major Microbiota in Mesotheliomas. J Pers Med 2021; 11:jpm11040297. [PMID: 33919754 PMCID: PMC8070724 DOI: 10.3390/jpm11040297] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/01/2021] [Accepted: 04/12/2021] [Indexed: 12/14/2022] Open
Abstract
The microbiota has been reported to be correlated with carcinogenesis and cancer progression. However, its involvement in the pathology of mesothelioma remains unknown. In this study, we aimed to identify mesothelioma-specific microbiota using resected or biopsied mesothelioma samples. Eight mesothelioma tissue samples were analyzed via polymerase chain reaction (PCR) amplification and 16S rRNA gene sequencing. The operational taxonomic units (OTUs) of the effective tags were analyzed in order to determine the taxon composition of each sample. For the three patients who underwent extra pleural pneumonectomy, normal peripheral lung tissues adjacent to the tumor were also included, and the same analysis was performed. In total, 61 OTUs were identified in the tumor and lung tissues, which were classified into 36 species. Streptococcus australis and Ralstonia pickettii were identified as abundant species in almost all tumor and lung samples. Streptococcus australis and Ralstonia pickettii were found to comprise mesothelioma-specific microbiota involved in tumor progression; thus, they could serve as targets for the prevention of mesothelioma.
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Affiliation(s)
- Rumi Higuchi
- Lung Cancer and Respiratory Disease Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan; (R.H.); (S.O.)
| | - Taichiro Goto
- Lung Cancer and Respiratory Disease Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan; (R.H.); (S.O.)
- Correspondence: ; Tel.: +81-55-253-7111
| | - Yosuke Hirotsu
- Genome Analysis Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan; (Y.H.); (K.A.); (H.M.); (M.O.)
| | - Sotaro Otake
- Lung Cancer and Respiratory Disease Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan; (R.H.); (S.O.)
| | - Toshio Oyama
- Department of Pathology, Yamanashi Central Hospital, Yamanashi 400-8506, Japan;
| | - Kenji Amemiya
- Genome Analysis Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan; (Y.H.); (K.A.); (H.M.); (M.O.)
| | - Hitoshi Mochizuki
- Genome Analysis Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan; (Y.H.); (K.A.); (H.M.); (M.O.)
| | - Masao Omata
- Genome Analysis Center, Yamanashi Central Hospital, Yamanashi 400-8506, Japan; (Y.H.); (K.A.); (H.M.); (M.O.)
- Department of Gastroenterology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
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Establishment and Characterization of Patient-Derived Xenografts (PDXs) of Different Histology from Malignant Pleural Mesothelioma Patients. Cancers (Basel) 2020; 12:cancers12123846. [PMID: 33419364 PMCID: PMC7766019 DOI: 10.3390/cancers12123846] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/27/2022] Open
Abstract
Simple Summary Malignant pleural mesothelioma (MPM) is a rare tumor with unfavorable prognosis for which new therapeutic interventions are urgently needed. The aim of our study was to develop a preclinical model representative of the different histotypes found in human tumors that can be used as models for the discovery of new treatments and combinations. We successfully generated patient-derived xenografts (PDXs) from MPM, which strongly resembled the tumors of origin in terms of morphology and immunohistochemistry. These tumors, when growing in mice, poorly respond to cisplatin, a finding that aligned with the clinical results. From one of the PDXs, we generated 2D and 3D cultures maintaining the phenotypical characteristics of human tumors and PDXs. Altogether, these preclinical models represent a useful tool for the discovery of new targets and drug combinations. Abstract Background: Malignant pleural mesothelioma (MPM) is a very aggressive tumor originating from mesothelial cells. Although several etiological factors were reported to contribute to MPM onset, environmental exposure to asbestos is certainly a major risk factor. The latency between asbestos (or asbestos-like fibers) exposure and MPM onset is very long. MPM continues to be a tumor with poor prognosis despite the introduction of new therapies including immunotherapy. One of the major problems is the low number of preclinical models able to recapitulate the features of human tumors. This impacts the possible discovery of new treatments and combinations. Methods: In this work, we aimed to generate patient-derived xenografts (PDXs) from MPM patients covering the three major histotypes (epithelioid, sarcomatoid, and mixed) occurring in the clinic. To do this, we obtained fresh tumors from biopsies or pleurectomies, and samples were subcutaneously implanted in immunodeficient mice within 24 h. Results: We successfully isolated different PDXs and particularly concentrated our efforts on three covering the three histotypes. The tumors that grew in mice compared well histologically with the tumors of origin, and showed stable growth in mice and a low response to cisplatin, as was observed in the clinic. Conclusions: These models are helpful in testing new drugs and combinations that, if successful, could rapidly translate to the clinical setting.
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