1
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Hirai S, Yamada T, Katayama Y, Ishida M, Kawachi H, Matsui Y, Nakamura R, Morimoto K, Horinaka M, Sakai T, Sekido Y, Tokuda S, Takayama K. Effects of Combined Therapeutic Targeting of AXL and ATR on Pleural Mesothelioma Cells. Mol Cancer Ther 2024; 23:212-222. [PMID: 37802502 PMCID: PMC10831449 DOI: 10.1158/1535-7163.mct-23-0138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 07/12/2023] [Accepted: 10/03/2023] [Indexed: 10/10/2023]
Abstract
Few treatment options exist for pleural mesothelioma (PM), which is a progressive malignant tumor. However, the efficacy of molecular-targeted monotherapy is limited, and further therapeutic strategies are warranted to treat PM. Recently, the cancer cell-cycle checkpoint inhibitors have attracted attention because they disrupt cell-cycle regulation. Here, we aimed to establish a novel combinational therapeutic strategy to inhibit the cell-cycle checkpoint kinase, ATR in PM cells. The siRNA screening assay showed that anexelekto (AXL) knockdown enhanced cell growth inhibition when exposed to ATR inhibitors, demonstrating the synergistic effects of the ATR and AXL combination in some PM cells. The AXL and ATR inhibitor combination increased cell apoptosis via the Bim protein and suppressed cell migration when compared with each monotherapy. The combined therapeutic targeting of AXL and ATR significantly delayed regrowth compared with monotherapy. Thus, optimal AXL and ATR inhibition may potentially improve the PM outcome.
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Affiliation(s)
- Soichi Hirai
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tadaaki Yamada
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yuki Katayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masaki Ishida
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hayato Kawachi
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yohei Matsui
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ryota Nakamura
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kenji Morimoto
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mano Horinaka
- Department of Drug Discovery Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiyuki Sakai
- Department of Drug Discovery Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Yoshitaka Sekido
- Division of Cancer Biology, Aichi Cancer Center Research Institute, Nagoya, Japan
- Division of Molecular and Cellular Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinsaku Tokuda
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Koichi Takayama
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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2
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Luo S, Gong J, Zhao S, Li M, Li R. Deubiquitinase BAP1 regulates stability of BRCA1 protein and inactivates the NF-κB signaling to protect mice from sepsis-induced acute kidney injury. Chem Biol Interact 2023; 382:110621. [PMID: 37414201 DOI: 10.1016/j.cbi.2023.110621] [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: 03/21/2023] [Revised: 06/21/2023] [Accepted: 07/03/2023] [Indexed: 07/08/2023]
Abstract
Sepsis and its associated organ dysfunction syndrome is a leading cause of death in critically ill patients. Breast cancer susceptibility protein 1 (BRCA1)-associated protein 1 (BAP1) is a potential regulator in immune regulation and inflammatory responses. This study aims to investigate the function of BAP1 in sepsis-induced acute kidney injury (AKI). A mouse model with sepsis-induced AKI was induced by cecal ligation and puncture, and renal tubular epithelial cells (RTECs) were treated with lipopolysaccharide (LPS) to mimic an AKI condition in vitro. BAP1 was significantly poorly expressed in the kidney tissues of model mice and the LPS-treated RTECs. Artificial upregulation of BAP1 ameliorated the pathological changes, tissue injury and inflammatory responses in kidney tissues of the mice, and it reduced the LPS-induced injury and apoptosis of the RTECs. BAP1 was found to interact with BRCA1 and enhance stability of BRCA1 protein through deubiquitination modification. Further downregulation of BRCA1 activated the nuclear factor-kappa B (NF-κB) signaling pathway and blocked the protective roles of BAP1 in sepsis-induced AKI. In conclusion, this study demonstrates that BAP1 protects mice from sepsis-induced AKI through enhancing stability of BRCA1 protein and inactivating the NF-κB signaling.
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Affiliation(s)
- Shu Luo
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, PR China.
| | - Junzuo Gong
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, PR China
| | - Shiqiao Zhao
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, PR China
| | - Menqin Li
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, PR China
| | - Ruixiu Li
- Department of Emergency, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, Sichuan, PR China
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3
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Karnan S, Ota A, Murakami H, Rahman ML, Wahiduzzaman M, Hasan MN, Vu LQ, Hanamura I, Inoko A, Riku M, Ito H, Kaneko Y, Hyodo T, Konishi H, Tsuzuki S, Hosokawa Y. CAMK2D: a novel molecular target for BAP1-deficient malignant mesothelioma. Cell Death Discov 2023; 9:257. [PMID: 37479714 PMCID: PMC10362017 DOI: 10.1038/s41420-023-01552-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 07/23/2023] Open
Abstract
Malignant mesothelioma (MMe) is a rare but aggressive malignancy. Although the molecular genetics of MMe is known, including BRCA1-associated protein-1 (BAP1) gene alterations, the prognosis of MMe patients remains poor. Here, we generated BAP1 knockout (BAP1-KO) human mesothelial cell clones to develop molecular-targeted therapeutics based on genetic alterations in MMe. cDNA microarray and quantitative RT-PCR (qRT-PCR) analyses revealed high expression of a calcium/calmodulin-dependent protein kinase type II subunit delta (CAMK2D) gene in the BAP1-KO cells. CAMK2D was highly expressed in 70% of the human MMe tissues (56/80) and correlated with the loss of BAP1 expression, making it a potential diagnostic and therapeutic target for BAP1-deficient MMe. We screened an anticancer drugs library using BAP1-KO cells and successfully identified a CaMKII inhibitor, KN-93, which displayed a more potent and selective antiproliferative effect against BAP1-deficient cells than cisplatin or pemetrexed. KN-93 significantly suppressed the tumor growth in mice xenografted with BAP1-deficient MMe cells. This study is the first to provide a potential molecular-targeted therapeutic approach for BAP1-deficient MMe.
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Affiliation(s)
- Sivasundaram Karnan
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan.
| | - Akinobu Ota
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
- Department of Nutritional Environment, College of Human Life and Environment, Kinjo Gakuin University, Nagoya, 463-8521, Japan
| | - Hideki Murakami
- Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Md Lutfur Rahman
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Md Wahiduzzaman
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, US
- Eukaryotic Gene Expression and Function (EuGEF) Research Group, Chattogram, 4000, Bangladesh
| | - Muhammad Nazmul Hasan
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
- Eukaryotic Gene Expression and Function (EuGEF) Research Group, Chattogram, 4000, Bangladesh
| | - Lam Quang Vu
- Division of Hematology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Ichiro Hanamura
- Division of Hematology, Department of Internal Medicine, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Akihito Inoko
- Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Miho Riku
- Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Hideaki Ito
- Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Yoshifumi Kaneko
- Department of Pathology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Toshinori Hyodo
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Hiroyuki Konishi
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Shinobu Tsuzuki
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
| | - Yoshitaka Hosokawa
- Department of Biochemistry, , Aichi Medical University School of Medicine, Nagakute, Aichi, Japan.
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4
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Singh A, Busacca S, Gaba A, Sheaff M, Poile C, Nakas A, Dzialo J, Bzura A, Dawson AG, Fennell DA, Fry AM. BAP1 loss induces mitotic defects in mesothelioma cells through BRCA1-dependent and independent mechanisms. Oncogene 2023; 42:572-585. [PMID: 36550359 PMCID: PMC9937923 DOI: 10.1038/s41388-022-02577-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 12/06/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022]
Abstract
The tumour suppressor BRCA1-associated protein 1 (BAP1) is the most frequently mutated cancer gene in mesothelioma. Here we report novel functions for BAP1 in mitotic progression highlighting the relationship between BAP1 and control of genome stability in mesothelioma cells with therapeutic implications. Depletion of BAP1 protein induced proteasome-mediated degradation of BRCA1 in mesothelioma cells while loss of BAP1 correlated with BRCA1 loss in mesothelioma patient tumour samples. BAP1 loss also led to mitotic defects that phenocopied the loss of BRCA1 including spindle assembly checkpoint failure, centrosome amplification and chromosome segregation errors. However, loss of BAP1 also led to additional mitotic changes that were not observed upon BRCA1 loss, including an increase in spindle length and enhanced growth of astral microtubules. Intriguingly, these consequences could be explained by loss of expression of the KIF18A and KIF18B kinesin motors that occurred upon depletion of BAP1 but not BRCA1, as spindle and astral microtubule defects were rescued by re-expression of KIF18A and KIF18B, respectively. We therefore propose that BAP1 inactivation causes mitotic defects through BRCA1-dependent and independent mechanisms revealing novel routes by which mesothelioma cells lacking BAP1 may acquire genome instability and exhibit altered responses to microtubule-targeted agents.
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Affiliation(s)
- Anita Singh
- grid.9918.90000 0004 1936 8411Department of Molecular and Cell Biology, University of Leicester, Lancaster Road, Leicester, LE1 9HN UK ,grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK
| | - Sara Busacca
- grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK
| | - Aarti Gaba
- grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK
| | - Michael Sheaff
- Department of Histopathology, Barts Health NHS Trust, Queen Mary University of London, The Royal London Hospital, London, E1 2ES UK
| | - Charlotte Poile
- grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK
| | - Apostolos Nakas
- grid.412925.90000 0004 0400 6581University Hospitals of Leicester NHS Trust, Glenfield Hospital, Leicester, LE3 9QP UK
| | - Joanna Dzialo
- grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK
| | - Aleksandra Bzura
- grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK
| | - Alan G. Dawson
- grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK ,grid.412925.90000 0004 0400 6581University Hospitals of Leicester NHS Trust, Glenfield Hospital, Leicester, LE3 9QP UK
| | - Dean A. Fennell
- grid.9918.90000 0004 1936 8411Leicester Cancer Research Centre, Department of Genetics and Genome Biology, University of Leicester, Robert Kilpatrick Clinical Sciences Building, Leicester, LE2 7LX UK ,grid.412925.90000 0004 0400 6581University Hospitals of Leicester NHS Trust, Glenfield Hospital, Leicester, LE3 9QP UK
| | - Andrew M. Fry
- grid.9918.90000 0004 1936 8411Department of Molecular and Cell Biology, University of Leicester, Lancaster Road, Leicester, LE1 9HN UK
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5
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Hajj GNM, Cavarson CH, Pinto CAL, Venturi G, Navarro JR, Lima VCCD. Malignant pleural mesothelioma: an update. J Bras Pneumol 2021; 47:e20210129. [PMID: 34909922 PMCID: PMC8836658 DOI: 10.36416/1806-3756/e20210129] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/11/2021] [Indexed: 12/14/2022] Open
Abstract
Malignant mesotheliomas are rare types of cancers that affect the mesothelial surfaces, usually the pleura and peritoneum. They are associated with asbestos exposure, but due to a latency period of more than 30 years and difficult diagnosis, most cases are not detected until they reach advanced stages. Treatment options for this tumor type are very limited and survival ranges from 12 to 36 months. This review discusses the molecular physiopathology, current diagnosis, and latest therapeutic options for this disease.
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Affiliation(s)
- Glaucia N M Hajj
- Instituto International de Pesquisa, A.C. Camargo Cancer Center, São Paulo (SP), Brasil.,Instituto Nacional de Oncogenômica e Inovação Terapêutica, São Paulo (SP), Brasil
| | - Carolina H Cavarson
- Instituto International de Pesquisa, A.C. Camargo Cancer Center, São Paulo (SP), Brasil.,Instituto Nacional de Oncogenômica e Inovação Terapêutica, São Paulo (SP), Brasil
| | | | - Gabriela Venturi
- Instituto International de Pesquisa, A.C. Camargo Cancer Center, São Paulo (SP), Brasil.,BP Mirante, São Paulo (SP), Brasil
| | | | - Vladmir C Cordeiro de Lima
- Instituto Nacional de Oncogenômica e Inovação Terapêutica, São Paulo (SP), Brasil.,Rede D'Or, São Paulo (SP), Brasil
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6
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Yu L, Zhou D, Zhang G, Ren Z, Luo X, Liu P, Plouffe SW, Meng Z, Moroishi T, Li Y, Zhang Y, Brown JH, Liu S, Guan K. Co-occurrence of BAP1 and SF3B1 mutations in uveal melanoma induces cellular senescence. Mol Oncol 2021; 16:607-629. [PMID: 34706158 PMCID: PMC8807356 DOI: 10.1002/1878-0261.13128] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 10/08/2021] [Accepted: 10/26/2021] [Indexed: 01/07/2023] Open
Abstract
Uveal melanoma (UM) is the most common intraocular tumor in adults. Recurrent mutations in BRCA1‐associated protein 1 (BAP1) and splicing factor 3B subunit 1 (SF3B1) display a mutually exclusive pattern in UM, but the underlying mechanism is unknown. We show that combined BAP1 deficiency and SF3B1 hotspot mutation lead to senescence and growth arrest in human UM cells. Although p53 protein expression is induced, deletion of TP53 (encoding p53) only modestly rescues the observed senescent phenotype. UM cells with BAP1 loss or SF3B1 mutation are more sensitive to chemotherapeutic drugs compared with their isogenic parental cells. Transcriptome analysis shows that DNA‐repair genes are downregulated upon co‐occurrence of BAP1 deletion and SF3B1 mutation, thus leading to impaired DNA damage response and the induction of senescence. The co‐occurrence of these two mutations reduces invasion of UM cells in zebrafish xenograft models and suppresses growth of melanoma xenografts in nude mice. Our findings provide a mechanistic explanation for the mutual exclusivity of BAP1 and SF3B1 mutations in human UM.
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Affiliation(s)
- Le Yu
- School of Pharmaceutical SciencesSouthern Medical UniversityGuangzhouChina
| | - Dan Zhou
- School of Pharmaceutical SciencesSouthern Medical UniversityGuangzhouChina
| | - Guiming Zhang
- School of Pharmaceutical SciencesSouthern Medical UniversityGuangzhouChina
| | - Zhonglu Ren
- College of Medical Information EngineeringGuangdong Pharmaceutical UniversityGuangzhouChina
- Medicinal Information and Real World Engineering Technology Center of UniversitiesGuangzhouChina
| | - Xin Luo
- School of Pharmaceutical SciencesSouthern Medical UniversityGuangzhouChina
| | - Peng Liu
- Institutes of Biomedical SciencesFudan UniversityShanghaiChina
| | - Steven W. Plouffe
- Department of Pharmacology and Moores Cancer CenterUniversity of CaliforniaSan DiegoCAUSA
| | - Zhipeng Meng
- Department of Pharmacology and Moores Cancer CenterUniversity of CaliforniaSan DiegoCAUSA
| | - Toshiro Moroishi
- Department of Pharmacology and Moores Cancer CenterUniversity of CaliforniaSan DiegoCAUSA
- Center for Metabolic Regulation of Healthy AgingFaculty of Life SciencesKumamoto UniversityJapan
- Department of Cell Signaling and Metabolic MedicineFaculty of Life SciencesKumamoto UniversityJapan
- Precursory Research for Embryonic Science and TechnologyJapan Science and Technology AgencySaitamaJapan
| | - Yilei Li
- Department of PharmacyNanfang HospitalSouthern Medical UniversityGuangzhouChina
| | - Yiyue Zhang
- Division of CellDevelopment and Integrative BiologySchool of MedicineSouth China University of TechnologyGuangzhouChina
| | - Joan Heller Brown
- Department of Pharmacology and Moores Cancer CenterUniversity of CaliforniaSan DiegoCAUSA
| | - Shuwen Liu
- School of Pharmaceutical SciencesSouthern Medical UniversityGuangzhouChina
| | - Kun‐Liang Guan
- Department of Pharmacology and Moores Cancer CenterUniversity of CaliforniaSan DiegoCAUSA
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7
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Karunakaran KB, Yanamala N, Boyce G, Becich MJ, Ganapathiraju MK. Malignant Pleural Mesothelioma Interactome with 364 Novel Protein-Protein Interactions. Cancers (Basel) 2021; 13:1660. [PMID: 33916178 PMCID: PMC8037232 DOI: 10.3390/cancers13071660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
Malignant pleural mesothelioma (MPM) is an aggressive cancer affecting the outer lining of the lung, with a median survival of less than one year. We constructed an 'MPM interactome' with over 300 computationally predicted protein-protein interactions (PPIs) and over 2400 known PPIs of 62 literature-curated genes whose activity affects MPM. Known PPIs of the 62 MPM associated genes were derived from Biological General Repository for Interaction Datasets (BioGRID) and Human Protein Reference Database (HPRD). Novel PPIs were predicted by applying the HiPPIP algorithm, which computes features of protein pairs such as cellular localization, molecular function, biological process membership, genomic location of the gene, and gene expression in microarray experiments, and classifies the pairwise features as interacting or non-interacting based on a random forest model. We validated five novel predicted PPIs experimentally. The interactome is significantly enriched with genes differentially ex-pressed in MPM tumors compared with normal pleura and with other thoracic tumors, genes whose high expression has been correlated with unfavorable prognosis in lung cancer, genes differentially expressed on crocidolite exposure, and exosome-derived proteins identified from malignant mesothelioma cell lines. 28 of the interactors of MPM proteins are targets of 147 U.S. Food and Drug Administration (FDA)-approved drugs. By comparing disease-associated versus drug-induced differential expression profiles, we identified five potentially repurposable drugs, namely cabazitaxel, primaquine, pyrimethamine, trimethoprim and gliclazide. Preclinical studies may be con-ducted in vitro to validate these computational results. Interactome analysis of disease-associated genes is a powerful approach with high translational impact. It shows how MPM-associated genes identified by various high throughput studies are functionally linked, leading to clinically translatable results such as repurposed drugs. The PPIs are made available on a webserver with interactive user interface, visualization and advanced search capabilities.
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Affiliation(s)
- Kalyani B. Karunakaran
- Supercomputer Education and Research Centre, Indian Institute of Science, Bangalore 560012, India;
| | - Naveena Yanamala
- Exposure Assessment Branch, National Institute of Occupational Safety and Health, Center for Disease Control, Morgantown, WV 26506, USA; (N.Y.); (G.B.)
| | - Gregory Boyce
- Exposure Assessment Branch, National Institute of Occupational Safety and Health, Center for Disease Control, Morgantown, WV 26506, USA; (N.Y.); (G.B.)
| | - Michael J. Becich
- Department of Biomedical Informatics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15206, USA;
| | - Madhavi K. Ganapathiraju
- Department of Biomedical Informatics, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15206, USA;
- Intelligent Systems Program, School of Computing and Information, University of Pittsburgh, Pittsburgh, PA 15213, USA
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8
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Fennell DA, King A, Mohammed S, Branson A, Brookes C, Darlison L, Dawson AG, Gaba A, Hutka M, Morgan B, Nicholson A, Richards C, Wells-Jordan P, Murphy GJ, Thomas A. Rucaparib in patients with BAP1-deficient or BRCA1-deficient mesothelioma (MiST1): an open-label, single-arm, phase 2a clinical trial. THE LANCET RESPIRATORY MEDICINE 2021; 9:593-600. [PMID: 33515503 DOI: 10.1016/s2213-2600(20)30390-8] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/05/2020] [Accepted: 08/17/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Malignant mesothelioma remains an incurable cancer, with no effective treatments in the setting of relapsed disease. Homologous recombination deficiency predicts sensitivity to poly (ADP-ribose) polymerase (PARP) inhibitors. In mesothelioma, BRCA1-associated protein 1 carboxy-terminal hydrolase (BAP1), which regulates DNA repair, is frequently mutated. We aimed to test the hypothesis that BAP1-deficient or BRCA1-deficient mesotheliomas would be sensitive to PARP inhibition by rucaparib. METHODS We did a single-centre, open-label, single-arm, phase 2a trial in Leicester, UK, with prospective molecular stratification (Mesothelioma-Stratified Therapy 1 [MiST1]). Patients aged 18 years or older who had radiologically progressing, histologically confirmed, malignant mesothelioma after at least one course of systemic treatment; with cytoplasmic-BAP1-deficient or BRCA1-deficient mesothelioma (pleural or peritoneal or other primary localisation), and who met the other inclusion criteria, were deemed eligible. All eligible patients who consented to take part were given rucaparib 600 mg twice a day orally, for six cycles of 28 days, or until disease progression, unacceptable toxicity, withdrawal of consent, or death. Response was measured by CT scan every 6 weeks. The primary outcome was disease control (complete response, partial response, or stable disease) at 12 weeks in all patients who received study drug; secondary outcomes were the safety and toxicity profile, objective response rate (proportion of complete or partial responses), and disease control rate at 24 weeks. Recruitment is now closed. This trial is registered with ClinicalTrials.gov, NCT03654833. FINDINGS Between Feb 9 and June 10, 2019, we enrolled 26 molecularly and clinically eligible patients. Ten (38%) of 26 patients were BAP1 negative and BRCA1 negative, 23 patients (89%) were BAP1 negative, and 13 patients (50%) were BRCA1 negative. Disease control rate at 12 weeks was 58% (95% CI 37-77; 15 of 26 patients), and at 24 weeks was 23% (9-44; six of 26 patients). Rucaparib was well tolerated, with 15 (9%) of 166 adverse events being grade 3 or 4, which were seen in nine (35%) of 26 patients, and there were no deaths. The most common grade 1-2 adverse events were nausea (18 [69%] of 26 patients), fatigue (14 patients [54%]), and decreased appetite (ten patients [38%]). The most common grade 3-4 adverse events were upper respiratory tract infection (three patients [12%]) and anaemia (three patients [12%]). All six cycles of rucaparib were received by eight (31%) of 26 patients. One or more dose reductions occurred in nine patients (35%). INTERPRETATION Rucaparib in patients with BAP1-negative or BRCA1-negative mesothelioma met the prespecified criteria for success, showing promising activity with manageable toxicity. Further investigation of homologous recombination deficiency mutations is planned to refine the identification of predictive biomarkers for PARP inhibition in mesothelioma. FUNDING University of Leicester (Leicester, UK), Asthma UK and British Lung Foundation Partnership, and the Victor Dahdaleh Foundation (Toronto, ON, Canada).
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Affiliation(s)
- Dean A Fennell
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK.
| | - Amy King
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK; Leicester Clinical Trials Unit, University of Leicester, Leicester, UK
| | - Seid Mohammed
- Leicester Clinical Trials Unit, University of Leicester, Leicester, UK
| | - Amy Branson
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK; Leicester Clinical Trials Unit, University of Leicester, Leicester, UK
| | - Cassandra Brookes
- Leicester Clinical Trials Unit, University of Leicester, Leicester, UK
| | - Liz Darlison
- Glenfield Hospital, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Alan G Dawson
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK
| | - Aarti Gaba
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK
| | - Margaret Hutka
- Hope Facility, University Hospitals of Leicester NHS Trust, Leicester, UK; Cancer Research Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Bruno Morgan
- Hope Facility, University Hospitals of Leicester NHS Trust, Leicester, UK; Department of Radiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Adrian Nicholson
- Cancer Research Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Cathy Richards
- Department of Histopathology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Peter Wells-Jordan
- Department of Histopathology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | | | - Anne Thomas
- Leicester Cancer Research Centre, University of Leicester, Leicester, UK; Hope Facility, University Hospitals of Leicester NHS Trust, Leicester, UK; Cancer Research Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
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9
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Busacca S, O'Regan L, Singh A, Sharkey AJ, Dawson AG, Dzialo J, Parsons A, Kumar N, Schunselaar LM, Guppy N, Nakas A, Sheaff M, Mansfield AS, Janes SM, Baas P, Fry AM, Fennell DA. BRCA1/MAD2L1 Deficiency Disrupts the Spindle Assembly Checkpoint to Confer Vinorelbine Resistance in Mesothelioma. Mol Cancer Ther 2020; 20:379-388. [PMID: 33158996 DOI: 10.1158/1535-7163.mct-20-0363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/02/2020] [Accepted: 10/27/2020] [Indexed: 11/16/2022]
Abstract
Mesothelioma is a universally lethal cancer lacking effective therapy. The spindle poison vinorelbine exhibits clinical activity in the relapsed setting, and in preclinical models requires BRCA1 to initiate apoptosis. However, the mechanisms underlying this regulation and the clinical implications have not been explored. Here, we show that BRCA1 silencing abrogated vinorelbine-induced cell-cycle arrest, recruitment of BUBR1 to kinetochores, and apoptosis. BRCA1 silencing led to codepletion of MAD2L1 at the mRNA and protein levels consistent with its status as a transcriptional target of BRCA1 Silencing of MAD2L1 phenocopied BRCA1 and was sufficient to confer resistance to vinorelbine. This was recapitulated in cell lines selected for resistance to vinorelbine, which acquired loss of both BRCA1 and MAD2L1 expression. Following ex vivo vinorelbine in 20 primary tumor explants, apoptotic response rate was 59% in BRCA1/MAD2L1-positive explants compared with 0% in BRCA1/MAD2L1-negative explants. In 48 patients, BRCA1 and/or MAD2L1 loss of expression was not prognostic; however, in a subset of patients treated with vinorelbine, survival was shorter for patients lacking BRCA1/MAD2L1 expression compared with double-positive patients (5.9 vs. 36.7 months, P = 0.03). Our data implicate BRCA1/MAD2L1 loss as a putative predictive marker of resistance to vinorelbine in mesothelioma and warrant prospective clinical evaluation.
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Affiliation(s)
- Sara Busacca
- Leicester Cancer Research Centre, University of Leicester, Leicester, United Kingdom
| | - Laura O'Regan
- Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom
| | - Anita Singh
- Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom
| | - Annabel J Sharkey
- Leicester Cancer Research Centre, University of Leicester, Leicester, United Kingdom
| | - Alan G Dawson
- Leicester Cancer Research Centre, University of Leicester, Leicester, United Kingdom
- Department of Thoracic Surgery, Glenfield Hospital, University Hospitals of Leicester, Leicester, United Kingdom
| | - Joanna Dzialo
- Leicester Cancer Research Centre, University of Leicester, Leicester, United Kingdom
| | - Aimee Parsons
- Leicester Cancer Research Centre, University of Leicester, Leicester, United Kingdom
| | - Neelam Kumar
- University College London, UCL Respiratory, London, United Kingdom
| | - Laurel M Schunselaar
- Department of Thoracic Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Naomi Guppy
- University College London Advanced Diagnostics, London, United Kingdom
| | - Apostolos Nakas
- Department of Thoracic Surgery, Glenfield Hospital, University Hospitals of Leicester, Leicester, United Kingdom
| | - Michael Sheaff
- Department of Histopathology, Barts Health NHS Trust, London, United Kingdom
| | - Aaron S Mansfield
- Department of Oncology, Division of Medical Oncology, Mayo Clinic, Rochester, Minnesota
| | - Sam M Janes
- University College London, UCL Respiratory, London, United Kingdom
| | - Paul Baas
- Department of Thoracic Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Andrew M Fry
- Department of Molecular and Cell Biology, University of Leicester, Leicester, United Kingdom
| | - Dean A Fennell
- Leicester Cancer Research Centre, University of Leicester, Leicester, United Kingdom.
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10
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De Rienzo A, Chirieac LR, Hung YP, Severson DT, Freyaldenhoven S, Gustafson CE, Dao NT, Meyerovitz CV, Oster ME, Jensen RV, Yeap BY, Bueno R, Richards WG. Large-scale analysis of BAP1 expression reveals novel associations with clinical and molecular features of malignant pleural mesothelioma. J Pathol 2020; 253:68-79. [PMID: 32944962 PMCID: PMC7756745 DOI: 10.1002/path.5551] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 08/19/2020] [Accepted: 09/14/2020] [Indexed: 02/06/2023]
Abstract
BRCA1‐associated protein‐1 (BAP1) expression is commonly lost in several tumors including malignant pleural mesothelioma (MPM). Presence or absence of immunohistochemical BAP1 nuclear staining in tumor cells is currently used for differential diagnosis of MPM. In this study, a large cohort of 596 MPM tumors with available clinical data was analyzed to examine associations of BAP1 staining pattern with clinical and molecular features that may reflect the impact of BAP1 mutation on MPM biology. Cases were classified according to the BAP1 staining pattern of tumor cells. Exome and RNA‐sequencing data were available for subsets of cases. Levels of mRNA encoding claudin 15 (CLDN15) and vimentin (VIM) were determined using RT‐qPCR on 483 cases to estimate the relative proportions of epithelial‐like and mesenchymal‐like components in each tumor. Four BAP1 staining patterns were observed: single‐pattern nuclear staining (36%), single‐pattern cytoplasmic staining (25%), single‐pattern absent staining (12%), and combinations of these staining patterns (27%). This study confirmed prior reports that nuclear BAP1 is more frequently associated with wild‐type BAP1 and sarcomatoid histology. However, no associations between BAP1 staining pattern(s) and mutations in specific protein domains and/or mutation type were observed. BAP1 staining patterns were significantly associated (p < 0.001) with BAP1 gene expression, MPM histologic subtypes, molecular clusters, and markers of epithelial‐to‐mesenchymal transition. Frequent observation of combinations of BAP1 staining patterns in MPM tumors indicated intra‐tumoral heterogeneity of BAP1 status. Cytoplasmic BAP1 staining was identified as a putative indicator of favorable prognosis in non‐epithelioid MPM. In conclusion, novel significant associations among different BAP1 staining patterns and subgroups of MPM tumors were observed, suggesting that the role of BAP1 in tumor progression may be more complex than its presumed tumor suppressor function. Cytoplasmic staining was identified as a putative indicator of favorable prognosis in non‐epithelioid MPM, potentially addressing a critical need in clinical decision‐making in this disease. © 2020 The Authors. The Journal of Pathology published by John Wiley & Sons, Ltd. on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Assunta De Rienzo
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - Lucian R Chirieac
- Department of PathologyBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - Yin P Hung
- Department of PathologyMassachusetts General Hospital and Harvard Medical SchoolBostonMAUSA
| | - David T Severson
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - Samuel Freyaldenhoven
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - Corinne E Gustafson
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - Nhien T Dao
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - Claire V Meyerovitz
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - Michela E Oster
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | | | - Beow Y Yeap
- Department of MedicineMassachusetts General Hospital and Harvard Medical SchoolBostonMAUSA
| | - Raphael Bueno
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
| | - William G Richards
- The Thoracic Surgery Oncology Laboratory and the International Mesothelioma Program (www.impmeso.org), Division of Thoracic Surgery and the Lung CenterBrigham and Women's Hospital, and Harvard Medical SchoolBostonMAUSA
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11
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Okonska A, Bühler S, Rao V, Ronner M, Blijlevens M, van der Meulen-Muileman IH, de Menezes RX, Wipplinger M, Oehl K, Smit EF, Weder W, Stahel RA, Penengo L, van Beusechem VW, Felley-Bosco E. Functional Genomic Screen in Mesothelioma Reveals that Loss of Function of BRCA1-Associated Protein 1 Induces Chemoresistance to Ribonucleotide Reductase Inhibition. Mol Cancer Ther 2019; 19:552-563. [PMID: 31619462 DOI: 10.1158/1535-7163.mct-19-0356] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 09/06/2019] [Accepted: 10/10/2019] [Indexed: 11/16/2022]
Abstract
Loss of function of BRCA1-associated protein 1 (BAP1) is observed in about 50% of malignant pleural mesothelioma (MPM) cases. The aim of this study was to investigate whether this aspect could be exploited for targeted therapy. A genetically engineered model was established expressing either functional or nonfunctional BAP1, and whole-genome siRNA synthetic lethality screens were performed assessing differentially impaired survival between the two cell lines. The whole-genome siRNA screen unexpectedly revealed 11 hits (FDR < 0.05) that were more cytotoxic to BAP1-proficient cells. Two actionable targets, ribonucleotide reductase (RNR) catalytic subunit M1 (RRM1) and RNR regulatory subunit M2 (RRM2), were validated. In line with the screen results, primary mesothelioma (BAP1 +/-) overexpressing BAP1 C91A (catalytically dead mutant) was more resistant to RNR inhibition, while BAP1 knockdown in the BAP1-proficient cell lines rescued the cells from their vulnerability to RNR depletion. Gemcitabine and hydroxyurea were more cytotoxic in BAP1-proficient cell line-derived spheroids compared with BAP1 deficient. Upregulation of RRM2 upon gemcitabine and hydroxyurea treatment was more profound in BAP1 mut/del cell lines. Increased lethality mediated by RNR inhibition was observed in NCI-H2452 cells reconstituted with BAP1-WT but not with BAP1 C91A. Upregulation of RRM2 in NCI-H2452-BAP1 WT spheroids was modest compared with control or C91A mutant. Together, we found that BAP1 is involved in the regulation of RNR levels during replication stress. Our observations reveal a potential clinical application where BAP1 status could serve as predictive or stratification biomarker for RNR inhibition-based therapy in MPM.
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Affiliation(s)
- Agata Okonska
- Laboratory of Molecular Oncology, Lungen- und Thoraxonkologie Zentrum, University Hospital Zürich, Zürich, Switzerland
| | - Saskja Bühler
- Laboratory of Molecular Oncology, Lungen- und Thoraxonkologie Zentrum, University Hospital Zürich, Zürich, Switzerland
| | - Vasundhara Rao
- Laboratory of Molecular Oncology, Lungen- und Thoraxonkologie Zentrum, University Hospital Zürich, Zürich, Switzerland
| | - Manuel Ronner
- Laboratory of Molecular Oncology, Lungen- und Thoraxonkologie Zentrum, University Hospital Zürich, Zürich, Switzerland
| | - Maxime Blijlevens
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, the Netherlands
| | | | - Renee X de Menezes
- Amsterdam UMC, Vrije Universiteit Amsterdam, Epidemiology and Biostatistics, Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Martin Wipplinger
- Laboratory of Molecular Oncology, Lungen- und Thoraxonkologie Zentrum, University Hospital Zürich, Zürich, Switzerland
| | - Kathrin Oehl
- Institute of Pathology and Molecular Pathology, University Hospital Zürich, Zürich, Switzerland
| | - Egbert F Smit
- Department of Thoracic Surgery, NKI, Amsterdam, the Netherlands
| | - Walter Weder
- Department of Thoracic Surgery, University Hospital Zürich, Zürich, Switzerland
| | - Rolf A Stahel
- Lungen- und Thoraxonkologie Zentrum, University Hospital Zürich, 8091 Zürich, Switzerland
| | - Lorenza Penengo
- Institute of Molecular Cancer Research, University of Zürich, Zürich, Switzerland
| | - Victor W van Beusechem
- Amsterdam UMC, Vrije Universiteit Amsterdam, Medical Oncology, Cancer Center Amsterdam, Amsterdam, the Netherlands
| | - Emanuela Felley-Bosco
- Laboratory of Molecular Oncology, Lungen- und Thoraxonkologie Zentrum, University Hospital Zürich, Zürich, Switzerland.
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12
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BAP1 expression is prognostic in breast and uveal melanoma but not colon cancer and is highly positively correlated with RBM15B and USP19. PLoS One 2019; 14:e0211507. [PMID: 30716094 PMCID: PMC6361507 DOI: 10.1371/journal.pone.0211507] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 01/15/2019] [Indexed: 12/25/2022] Open
Abstract
BAP1 is a tumor suppressor gene important to the development and prognosis of many cancers, especially uveal melanoma (UM). Its role in more common cancers such as breast and colon cancer is largely unknown. We collected the transcriptome profiling data sets from the TCGA uveal melanoma (TCGA-UVM), breast cancer (TCGA-BRCA), and colon cancer (TCGA-COAD) projects to analyze the expression of BAP1. We found that patients with UM and breast cancer, but not colon cancer, who died had a lower level of BAP1 gene expression compared to surviving patients. Importantly, in breast cancer patients, the lowest BAP1 expression levels corresponded to the dead young patients (age at diagnosis < 46). Since the number of cases in TCGA-BRCA was much higher than TCGA-UVM, we obtained highly correlated genes with BAP1 in invasive breast carcinomas. Then, we tested if these genes are also highly correlated with BAP1 in UM and colon cancer. We found that BAP1 is highly positively correlated with RBM15B and USP19 expression in invasive breast carcinoma, UM, and colon adenocarcinoma. All three genes are located in close proximity on the 3p21 tumor suppressor region that is commonly altered in many cancers.
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13
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Shankar GM, Santagata S. BAP1 mutations in high-grade meningioma: implications for patient care. Neuro Oncol 2018; 19:1447-1456. [PMID: 28482042 DOI: 10.1093/neuonc/nox094] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
We have recently shown that the breast cancer (BRCA)1-associated protein-1 tumor suppressor gene (BAP1) is inactivated in a subset of clinically aggressive meningiomas that display rhabdoid histomorphology. Immunohistochemistry for BAP1 protein provides a rapid and inexpensive method for screening suspected cases. Notably, some patients with BAP1-mutant meningiomas have germline BAP1 mutations and BAP1 tumor predisposition syndrome (TPDS). It appears that nearly all patients with germline BAP1 mutations develop malignancies by age 55, most frequently uveal melanoma, cutaneous melanoma, pleural or peritoneal malignant mesothelioma, or renal cell carcinoma, although other cancers have also been associated with BAP1 TPDS. Therefore, when confronted with a patient with a potentially high-grade rhabdoid meningioma, it is important that neuropathologists assess the BAP1 status of the tumor and that the patient's family history of cancer is carefully ascertained. In the appropriate clinical setting, genetic counseling and germline BAP1 DNA sequencing should be performed. A cancer surveillance program for individuals who carry germline BAP1 mutations may help identify tumors such as uveal melanoma, cutaneous melanoma, and renal cell carcinoma at early and treatable stages. Because BAP1-mutant meningiomas are rare tumors, multi-institutional efforts will be needed to evaluate therapeutic strategies and to further define the clinicopathologic features of these tumors.
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Affiliation(s)
- Ganesh M Shankar
- Department of Neurosurgery, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts; Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts; Ludwig Center at Harvard, Boston, Massachusetts
| | - Sandro Santagata
- Department of Neurosurgery, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts; Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts; Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts; Ludwig Center at Harvard, Boston, Massachusetts
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14
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Farquhar N, Thornton S, Coupland SE, Coulson JM, Sacco JJ, Krishna Y, Heimann H, Taktak A, Cebulla CM, Abdel-Rahman MH, Kalirai H. Patterns of BAP1 protein expression provide insights into prognostic significance and the biology of uveal melanoma. JOURNAL OF PATHOLOGY CLINICAL RESEARCH 2017; 4:26-38. [PMID: 29416875 PMCID: PMC5783957 DOI: 10.1002/cjp2.86] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/28/2017] [Accepted: 10/12/2017] [Indexed: 12/17/2022]
Abstract
Uveal melanoma (UM) is a rare aggressive intraocular tumour with a propensity for liver metastases, occurring in ∼50% of patients. The tumour suppressor BAP1 is considered to be key in UM progression. Herein, we present the largest study to date investigating cellular expression patterns of BAP1 protein in 165 UMs, correlating these patterns to prognosis. Full clinical, histological, genetic, and follow‐up data were available for all patients. BAP1 gene sequencing was performed on a subset of 26 cases. An independent cohort of 14 UMs was examined for comparison. Loss of nuclear BAP1 (nBAP1) protein expression was observed in 54% (88/165) UMs. nBAP1 expression proved to be a significant independent prognostic parameter: it identified two subgroups within monosomy 3 (M3) UM, which are known to have a high risk of metastasis. Strikingly, nBAP1‐positiveM3 UMs were associated with prolonged survival compared to nBAP1‐negative M3 UMs (Log rank, p = 0.014). nBAP1 protein loss did not correlate with a BAP1 mutation in 23% (6/26) of the UMs analysed. Cytoplasmic BAP1 protein (cBAP1) expression was also observed in UM: although appearing ‘predominantly diffuse’ in most nBAP1‐negative UM, a distinct ‘focal perinuclear’ expression pattern – localized immediately adjacent to the cis Golgi – was seen in 31% (18/59). These tumours tended to carry loss‐of‐function BAP1 mutations. Our study demonstrates loss of nBAP1 expression to be the strongest prognostic marker in UM, confirming its importance in UM progression. Our data suggest that non‐genetic mechanisms account for nBAP1 loss in a small number of UMs. In addition, we describe a subset of nBAP1‐negative UM, in which BAP1 is sequestered in perinuclear bodies, most likely within Golgi, warranting further mechanistic investigation.
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Affiliation(s)
- Neil Farquhar
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer MedicineInstitute of Translational Medicine, University of LiverpoolLiverpoolUK
| | - Sophie Thornton
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer MedicineInstitute of Translational Medicine, University of LiverpoolLiverpoolUK
| | - Sarah E Coupland
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer MedicineInstitute of Translational Medicine, University of LiverpoolLiverpoolUK.,Department of Cellular PathologyRoyal Liverpool University HospitalLiverpoolUK
| | - Judy M Coulson
- Department of Cellular and Molecular PhysiologyInstitute of Translational Medicine, University of LiverpoolLiverpoolUK
| | - Joseph J Sacco
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer MedicineInstitute of Translational Medicine, University of LiverpoolLiverpoolUK.,Department of Medical OncologyClatterbridge Cancer CentreClatterbridgeUK
| | - Yamini Krishna
- Department of Cellular PathologyRoyal Liverpool University HospitalLiverpoolUK
| | - Heinrich Heimann
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer MedicineInstitute of Translational Medicine, University of LiverpoolLiverpoolUK.,Liverpool Ocular Oncology CentreRoyal Liverpool University HospitalLiverpoolUK
| | - Azzam Taktak
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer MedicineInstitute of Translational Medicine, University of LiverpoolLiverpoolUK.,Department of Medical Physics & Clinical EngineeringRoyal Liverpool University HospitalLiverpoolUK
| | - Colleen M Cebulla
- Department of Ophthalmology and Visual ScienceHavener Eye Institute, The Ohio State UniversityColumbusOHUSA
| | - Mohamed H Abdel-Rahman
- Department of Ophthalmology and Visual ScienceHavener Eye Institute, The Ohio State UniversityColumbusOHUSA.,Division of Human Genetics, Department of Internal MedicineThe Ohio State UniversityColumbusOHUSA
| | - Helen Kalirai
- Liverpool Ocular Oncology Research Group, Department of Molecular and Clinical Cancer MedicineInstitute of Translational Medicine, University of LiverpoolLiverpoolUK
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15
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Yamaji M, Ota A, Wahiduzzaman M, Karnan S, Hyodo T, Konishi H, Tsuzuki S, Hosokawa Y, Haniuda M. Novel ATP-competitive Akt inhibitor afuresertib suppresses the proliferation of malignant pleural mesothelioma cells. Cancer Med 2017; 6:2646-2659. [PMID: 28960945 PMCID: PMC5673922 DOI: 10.1002/cam4.1179] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 07/26/2017] [Indexed: 12/12/2022] Open
Abstract
Malignant pleural mesothelioma (MPM), an asbestos-related occupational disease, is an aggressive and incurable tumor of the thoracic cavity. Despite recent advances in MPM treatment, overall survival of patients with MPM is very low. Recent studies have implicated that PI3K/Akt signaling is involved in MPM cell survival and development. To investigate the effects of Akt inhibitors on MPM cell survival, we examined the effects of nine selective Akt inhibitors, namely, afuresertib, Akti-1/2, AZD5363, GSK690693, ipatasertib, MK-2206, perifosine, PHT-427, and TIC10, on six MPM cell lines, namely, ACC-MESO-4, Y-MESO-8A, MSTO-211H, NCI-H28, NCI-H290, and NCI-H2052, and a normal mesothelial cell line MeT-5A. Comparison of IC50 values of the Akt inhibitors showed that afuresertib, an ATP-competitive specific Akt inhibitor, exerted tumor-specific effects on MPM cells. Afuresertib significantly increased caspase-3 and caspase-7 activities and apoptotic cell number among ACC-MESO-4 and MSTO-211H cells. Moreover, afuresertib strongly arrested the cell cycle in the G1 phase. Western blotting analysis showed that afuresertib increased the expression of p21WAF1/CIP1 and decreased the phosphorylation of Akt substrates, including GSK-3β and FOXO family proteins. These results suggest that afuresertib-induced p21 expression promotes G1 phase arrest by inducing FOXO activity. Furthermore, afuresertib significantly enhanced cisplatin-induced cytotoxicity. Interestingly, results of gene set enrichment analysis showed that afuresertib modulated the expression E2F1 and MYC, which are associated with fibroblast core serum response. Together, these results suggest that afuresertib is a useful anticancer drug for treating patients with MPM.
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Affiliation(s)
- Masayuki Yamaji
- Division of Chest Surgery, Department of Surgery, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan.,Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Akinobu Ota
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Md Wahiduzzaman
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Sivasundaram Karnan
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Toshinori Hyodo
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Hiroyuki Konishi
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Shinobu Tsuzuki
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Yoshitaka Hosokawa
- Department of Biochemistry, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
| | - Masayuki Haniuda
- Division of Chest Surgery, Department of Surgery, Aichi Medical University School of Medicine, Nagakute, Aichi, 480-1195, Japan
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16
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Szalai E, Wells JR, Ward L, Grossniklaus HE. Uveal Melanoma Nuclear BRCA1-Associated Protein-1 Immunoreactivity Is an Indicator of Metastasis. Ophthalmology 2017; 125:203-209. [PMID: 28823399 DOI: 10.1016/j.ophtha.2017.07.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/10/2017] [Accepted: 07/21/2017] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To examine the BRCA1-associated protein-1 (BAP1) expression of primary uveal melanomas without and with metastasis, and to analyze the correlation between the BAP1 immunoreactivity of primary uveal melanoma and other clinicopathologic features. DESIGN Retrospective case series. PARTICIPANTS Forty patients with uveal melanoma (mean age, 57.98±14.75 years) were included in this analysis, of whom 20 had no metastatic disease and 20 had metastasis. METHODS Medical records and histology slides of patients with primary uveal melanoma treated by enucleation were reviewed. BAP1 expression was evaluated by immunohistochemical staining of formalin-fixed, paraffin-embedded sections. Immunoreactivity in the nucleus and cytoplasm were graded by estimating the percentage of primary tumor cells showing a positive staining of their nucleus or cytoplasm per 1 high-power field 200× (grades 0-3). MAIN OUTCOME MEASURES Tumor size, histologic features, nuclear and cytoplasmic BAP1 immunoreactivity grade, and patient outcome, including development of metastasis. RESULTS Significantly lower (P = 0.025) nuclear BAP1 immunoreactivity was observed in the metastatic melanoma group. Greater tumor thickness, basal diameter, and more advanced TNM stage were associated with an increased odds ratio of developing metastasis (P < 0.05). In addition, tumors with a higher proportion of cells expressing nuclear BAP1 had decreased odds of developing metastatic disease in a multivariate model (P = 0.042). Metastasis-free survival was significantly longer in patients with uveal melanoma with high nuclear BAP1 stain (P = 0.004). CONCLUSIONS Time to metastasis differs in patients with primary uveal melanoma with different grades of nuclear BAP1 immunoreactivity. Nuclear BAP1 stain is the only significant independent predictor of metastatic disease in this study. Our data support the role of BAP1 immunohistochemical staining of primary uveal melanoma to evaluate metastatic risk.
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Affiliation(s)
- Eszter Szalai
- Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Jill R Wells
- Ophthalmology, Emory University School of Medicine, Atlanta, Georgia
| | - Laura Ward
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Hans E Grossniklaus
- Ophthalmology, Emory University School of Medicine, Atlanta, Georgia; Pathology, Emory University School of Medicine, Atlanta, Georgia.
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17
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Parrotta R, Okonska A, Ronner M, Weder W, Stahel R, Penengo L, Felley-Bosco E. A Novel BRCA1-Associated Protein-1 Isoform Affects Response of Mesothelioma Cells to Drugs Impairing BRCA1-Mediated DNA Repair. J Thorac Oncol 2017; 12:1309-1319. [DOI: 10.1016/j.jtho.2017.03.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 03/08/2017] [Accepted: 03/21/2017] [Indexed: 01/05/2023]
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18
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Abstract
Malignant mesothelioma is a universally lethal cancer that is increasing in incidence worldwide. There is a dearth of effective therapies, with only one treatment (pemetrexed and cisplatin combination chemotherapy) approved in the past 13 years. However, the past 5 years have witnessed an exponential growth in our understanding of mesothelioma pathobiology, which is set to revolutionize therapeutic strategies. From a genomic standpoint, mesothelioma is characterized by a preponderance of tumour suppressor alterations, for which novel therapies are currently in development. Other promising antitumour agents include inhibitors against angiogenesis, mesothelin and immune checkpoints, which are at various phases of clinical trial testing.
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Affiliation(s)
- Timothy A Yap
- The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
| | - Joachim G Aerts
- Erasmus MC Cancer Institute, 3015 CE Rotterdam, The Netherlands
| | - Sanjay Popat
- Royal Marsden Hospital, London SW3 6JJ, UK
- National Heart and Lung Institute, Imperial College London SW3 6NP, UK
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19
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McLoughlin KC, Kaufman AS, Schrump DS. Targeting the epigenome in malignant pleural mesothelioma. Transl Lung Cancer Res 2017; 6:350-365. [PMID: 28713680 DOI: 10.21037/tlcr.2017.06.06] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Malignant pleural mesotheliomas (MPM) are notoriously refractory to conventional treatment modalities. Recent insights regarding epigenetic alterations in MPM provide the preclinical rationale for the evaluation of novel combinatorial regimens targeting the epigenome in these neoplasms.
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Affiliation(s)
- Kaitlin C McLoughlin
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Andrew S Kaufman
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - David S Schrump
- Thoracic Epigenetics Section, Thoracic and GI Oncology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA
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20
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Nabavi N, Bennewith KL, Churg A, Wang Y, Collins CC, Mutti L. Switching off malignant mesothelioma: exploiting the hypoxic microenvironment. Genes Cancer 2016; 7:340-354. [PMID: 28191281 PMCID: PMC5302036 DOI: 10.18632/genesandcancer.124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 12/31/2016] [Indexed: 12/21/2022] Open
Abstract
Malignant mesotheliomas are aggressive, asbestos-related cancers with poor patient prognosis, typically arising in the mesothelial surfaces of tissues in pleural and peritoneal cavity. The relative unspecific symptoms of mesotheliomas, misdiagnoses, and lack of precise targeted therapies call for a more critical assessment of this disease. In the present review, we categorize commonly identified genomic aberrations of mesotheliomas into their canonical pathways and discuss targeting these pathways in the context of tumor hypoxia, a hallmark of cancer known to render solid tumors more resistant to radiation and most chemo-therapy. We then explore the concept that the intrinsic hypoxic microenvironment of mesotheliomas can be Achilles' heel for targeted, multimodal therapeutic intervention.
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Affiliation(s)
- Noushin Nabavi
- Laboratory for Advanced Genome Analysis, Vancouver Prostate Centre, BC, Canada
- Department of Urologic Sciences, University of British Columbia, BC, Canada
- Department of Experimental Therapeutics, BC Cancer Agency, BC, Canada
| | - Kevin L. Bennewith
- Department of Integrative Oncology, BC Cancer Agency, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, BC, Canada
| | - Andrew Churg
- Department of Pathology and Laboratory Medicine, University of British Columbia, BC, Canada
| | - Yuzhuo Wang
- Department of Urologic Sciences, University of British Columbia, BC, Canada
- Department of Experimental Therapeutics, BC Cancer Agency, BC, Canada
| | - Colin C. Collins
- Laboratory for Advanced Genome Analysis, Vancouver Prostate Centre, BC, Canada
- Department of Urologic Sciences, University of British Columbia, BC, Canada
| | - Luciano Mutti
- Italian Group for Research and Therapy for Mesothelioma (GIMe) & School of Environment and Life Sciences, University of Salford, Manchester, United Kingdom
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21
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Hida T, Hamasaki M, Matsumoto S, Sato A, Tsujimura T, Kawahara K, Iwasaki A, Okamoto T, Oda Y, Honda H, Nabeshima K. BAP1 immunohistochemistry and p16 FISH results in combination provide higher confidence in malignant pleural mesothelioma diagnosis: ROC analysis of the two tests. Pathol Int 2016; 66:563-570. [PMID: 27614970 DOI: 10.1111/pin.12453] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/20/2016] [Accepted: 08/04/2016] [Indexed: 01/07/2023]
Abstract
Differentiation of malignant pleural mesothelioma (MPM) from benign mesothelial proliferation remains problematic. Loss of nuclear staining of BRCA1-associated protein 1 (BAP1; detected using immunohistochemistry (IHC)) and homozygous deletion (HD) of p16 (detected using fluorescence in situ hybridization (FISH)) are useful for differentiation of MPM from reactive mesothelial hyperplasia (RMH), but the correlation between BAP1 expression loss and p16 HD has not been fully described. We performed BAP1 IHC and p16-specific FISH for 40 MPM and 20 RMH cases, and measured proportions of cells showing BAP1 expression and p16 HD for each case. The diagnostic accuracy for MPM and the cut-off values of the two methods were assessed using receiver operating characteristic (ROC) analysis. BAP1 expression loss, p16 HD and coexistence of both were present in 27 (67.5 %), 27 (67.5 %) and 17 (42.5 %) MPM cases, respectively. Three MPM cases (7.5 %) and all 20 RMH cases had neither BAP1 loss nor p16 HD. There was no correlation between the results of the two methods. Their combination showed higher sensitivity (92.5 %, 37/40) and estimated probability than BAP1 IHC and p16-specific FISH used alone. BAP1 IHC and p16-specific FISH have independent diagnostic value, and have increased reliability when used in combination, for MPM diagnosis.
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Affiliation(s)
- Tomoyuki Hida
- Department of Pathology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan.,Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Makoto Hamasaki
- Department of Pathology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
| | - Shinji Matsumoto
- Department of Pathology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
| | - Ayuko Sato
- Department of Pathology, Hyogo College of Medicine, Hyogo, Japan
| | - Tohru Tsujimura
- Department of Pathology, Hyogo College of Medicine, Hyogo, Japan
| | - Kunimitsu Kawahara
- Department of Pathology, Osaka Prefectural Medical Center for Respiratory and Allergic Disease, Osaka, Japan
| | - Akinori Iwasaki
- Department of Thoracic Surgery, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan
| | - Tatsuro Okamoto
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroshi Honda
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuki Nabeshima
- Department of Pathology, Fukuoka University Hospital and School of Medicine, Fukuoka, Japan.
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22
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Ascoli V, Cozzi I, Vatrano S, Izzo S, Giorcelli J, Romeo E, Carnovale-Scalzo C, Grillo LR, Facciolo F, Visca P, Papotti M, Righi L. Mesothelioma families without inheritance of a BAP1 predisposing mutation. Cancer Genet 2016; 209:381-387. [DOI: 10.1016/j.cancergen.2016.07.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/14/2016] [Accepted: 07/15/2016] [Indexed: 12/23/2022]
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