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Liu CC, Chen L, Cai YW, Chen YF, Liu YM, Zhou YJ, Shao ZM, Yu KD. Targeting EMSY-mediated methionine metabolism is a potential therapeutic strategy for triple-negative breast cancer. Cell Rep Med 2024; 5:101396. [PMID: 38290515 PMCID: PMC10897545 DOI: 10.1016/j.xcrm.2024.101396] [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: 05/26/2023] [Revised: 10/19/2023] [Accepted: 01/05/2024] [Indexed: 02/01/2024]
Abstract
Cancer stem cells (CSCs) are the most intractable subpopulation of triple-negative breast cancer (TNBC) cells, which have been associated with a high risk of relapse and poor prognosis. However, eradication of CSCs continues to be difficult. Here, we integrate the multiomics data of a TNBC cohort (n = 360) to identify vital markers of CSCs. We discover that EMSY, inducing a BRCAness phenotype, is preferentially expressed in breast CSCs, promotes ALDH+ cells enrichment, and is positively correlated with poor relapse-free survival. Mechanistically, EMSY competitively binds to the Jmjc domain, which is critical for KDM5B enzyme activity, to reshape methionine metabolism, and to promote CSC self-renewal and tumorigenesis in an H3K4 methylation-dependent manner. Moreover, EMSY accumulation in TNBC cells sensitizes them to PARP inhibitors against bulk cells and methionine deprivation against CSCs. These findings indicate that clinically relevant eradication of CSCs could be achieved with a strategy that targets CSC-specific vulnerabilities in amino acid metabolism.
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Affiliation(s)
- Cui-Cui Liu
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Lie Chen
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Yu-Wen Cai
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Yu-Fei Chen
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Yi-Ming Liu
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Yu-Jie Zhou
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Zhi-Ming Shao
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Ke-Da Yu
- Key Laboratory of Breast Cancer in Shanghai, Department of Breast Surgery, Fudan University Shanghai Cancer Center and Cancer Institute, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China.
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2
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Jeffreys SA, Becker TM, Khan S, Soon P, Neubauer H, de Souza P, Powter B. Prognostic and Predictive Value of CCND1/Cyclin D1 Amplification in Breast Cancer With a Focus on Postmenopausal Patients: A Systematic Review and Meta-Analysis. Front Endocrinol (Lausanne) 2022; 13:895729. [PMID: 35784572 PMCID: PMC9249016 DOI: 10.3389/fendo.2022.895729] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/10/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Up to 80% of breast cancers (BCa) are estrogen receptor positive and current treatments target the estrogen receptor (endocrine therapies) and/or CDK4/6 (CDK4/6 inhibitors). CCND1 encodes the protein cyclin D1, responsible for regulation of G1 to S phase transition in the cell cycle. CCND1 amplification is common in BCa and contributes to increased cyclin D1 expression. As there are signalling interactions between cyclin D1 and the estrogen receptor, understanding the impact of CCND1 amplification on estrogen receptor positive patients' disease outcomes, is vital. This review aims to evaluate CCND1 amplification as a prognostic and predictive biomarker in BCa. MATERIALS AND METHODS Publications were retrieved from the databases: PubMed, MEDLINE, Embase and Cochrane library. Exclusion criteria were duplication, publication type, non-English language, in vitro and animal studies, not BCa, male BCa, premenopausal BCa, cohort size <35, CCND1 amplification not reported. Publications with cohort duplication, and inadequate recurrence free survival (RFS) and overall survival (OS) data, were also excluded. Included publications were assessed for Risk of Bias (RoB) using the Quality In Prognosis Studies tool. Statistical analyses (Inverse Variance and Mantel-Haenszel) were performed in Review Manager. The PROSPERO registration number is [CRD42020208179]. RESULTS CCND1 amplification was significantly associated with positive estrogen receptor status (OR:1.70, 95% CI:1.19-2.43, p = 0.004) and cyclin D1 overexpression (OR: 5.64, 95% CI: 2.32-13.74, p=0.0001). CCND1 amplification was significantly associated with shorter RFS (OR: 1.64, 95% CI: 1.13-2.38, p = 0.009), and OS (OR: 1.51, 95% CI: 1.19-1.92, p = 0.0008) after removal of studies with a high RoB. In endocrine therapy treated patients specifically, CCND1 amplification predicted shorter RFS (HR: 2.59, 95% CI: 1.96-3.41, p < 0.00001) and OS (HR: 1.59, 95% CI: 1.00-2.49, p = 0.05) also after removal of studies with a high RoB. CONCLUSION While a lack of standardised approach for the detection of CCND1 amplification is to be considered as a limitation, CCND1 amplification was found to be prognostic of shorter RFS and OS in BCa. CCND1 amplification is also predictive of reduced RFS and OS in endocrine therapy treated patients specifically. With standardised methods and cut offs for the detection of CCND1 amplification, CCND1 amplification would have potential as a predictive biomarker in breast cancer patients. SYSTEMATIC REVIEW REGISTRATION https://www.crd.york.ac.uk/prospero/, identifier CRD42020208179.
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Affiliation(s)
- Sarah A. Jeffreys
- Centre of Circulating Tumour Cell Diagnostics and Research, Ingham Institute of Applied Medical Research, Liverpool, NSW, Australia
- School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
- *Correspondence: Sarah A. Jeffreys,
| | - Therese M. Becker
- Centre of Circulating Tumour Cell Diagnostics and Research, Ingham Institute of Applied Medical Research, Liverpool, NSW, Australia
- South Western Sydney Clinical School, University of New South Wales, Liverpool Hospital, Liverpool, NSW, Australia
| | - Sarah Khan
- Department of Medical Oncology, Bankstown Cancer Centre, Bankstown, NSW, Australia
| | - Patsy Soon
- Centre of Circulating Tumour Cell Diagnostics and Research, Ingham Institute of Applied Medical Research, Liverpool, NSW, Australia
- South Western Sydney Clinical School, University of New South Wales, Liverpool Hospital, Liverpool, NSW, Australia
- Department of Surgery, Bankstown Hospital, Bankstown, NSW, Australia
| | - Hans Neubauer
- Department of Obstetrics and Gynaecology, University Hospital and Medical Faculty of the Heinrich-Heine University Düsseldorf, Düsseldorf, Germany
| | - Paul de Souza
- Centre of Circulating Tumour Cell Diagnostics and Research, Ingham Institute of Applied Medical Research, Liverpool, NSW, Australia
- School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
- South Western Sydney Clinical School, University of New South Wales, Liverpool Hospital, Liverpool, NSW, Australia
| | - Branka Powter
- Centre of Circulating Tumour Cell Diagnostics and Research, Ingham Institute of Applied Medical Research, Liverpool, NSW, Australia
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3
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Hung CC, Huang HI, Hung CM, Moi SH. Identification of Candidate Genes in Early-Stage Invasive Ductal Carcinoma Patients with High-Risk Mortality Using Genes Commonly Involved in Breast Cancer: A Retrospective Study. Public Health Genomics 2021; 25:1-10. [PMID: 34634790 DOI: 10.1159/000519140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 08/09/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Invasive ductal carcinoma (IDC) of the breast is a heterogeneous disease characterized by multiple subtypes. IDC survival is highly impacted by tumor burden, molecular subtypes, and gene profiles. Gene mutation is a type of genomic instability regarded as having a considerable effect on IDC prognosis. Using integrated survival analysis, this study identified candidate genes and a high-risk group of patients with early-stage IDC to provide further understanding of the genetic characteristics associated with poor survival. METHODS The gene mutation profiles, baseline demographics, clinicopathologic variables, and treatment characteristics of the early-stage IDC subpopulation were downloaded from an open access data platform. These data were analyzed for a total of 444 patients. In total, 40 genes commonly involved in IDC were listed, and the genes exhibiting significant differences (as estimated using the log-rank test) were selected as the candidate genes. RESULTS The patients were divided into control, low-risk, and high-risk groups according to their gene mutation profiles. The 5-year overall survival rates of low-risk, control, and high-risk patients were 97.4%, 96.1%, and 73.0%, respectively. The high-risk group had a significantly higher risk of poor overall -survival (adjusted hazard ratio = 6.57, 95% confidence interval = 1.51-28.7, p = 0.012) than that of the control group, and the low-risk group did not have a significant survival difference compared with control group. CONCLUSIONS This study proposed an integrative approach for the identification of candidate genes for risk assessment of overall survival in these patients through typical survival analysis methods. The 14 candidate genes selected are particularly involved in cell-cycle processes, deoxyribonucleic acid repair, and drug resistance; their mutations were found to be generally associated with disease progression or therapeutic resistance, which is commonly associated with poor overall survival outcomes in IDC.
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Affiliation(s)
- Chih-Chiang Hung
- Division of Breast Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Applied Cosmetology, College of Human Science and Social Innovation, Hungkuang University, Taichung, Taiwan
| | - Hsin-I Huang
- Center of Cancer Program Development, E-Da Cancer Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Chao-Ming Hung
- Department of General Surgery, E-Da Cancer Hospital, Kaohsiung, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Sin-Hua Moi
- Center of Cancer Program Development, E-Da Cancer Hospital, I-Shou University, Kaohsiung, Taiwan
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Aleksakhina SN, Kramchaninov MM, Mikushina AD, Kubrina SE, Petkau VV, Ivantsov AO, Moiseyenko VM, Imyanitov EN, Iyevleva AG. CCND1 and FGFR1 gene amplifications are associated with reduced benefit from aromatase inhibitors in metastatic breast cancer. Clin Transl Oncol 2020; 23:874-881. [PMID: 32880048 DOI: 10.1007/s12094-020-02481-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 08/18/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE Endocrine therapy is a mainstay for the treatment of hormone receptor-positive breast cancer (BC); however, only a fraction of patients experience a pronounced response to antagonists of estrogen signaling. There is a need to identify predictors for efficacy of this treatment. METHODS This study included 138 patients with newly diagnosed metastatic BC, who received upfront endocrine therapy. Archival biopsy specimens were tested for CCND1 and FGFR1 gene amplification and mRNA expression by PCR-based methods. RESULTS CCND1 and FGFR1 amplification was detected in 24 (17.9%) and 28 (20.9%) of 134 evaluable cases, respectively; 9 carcinomas had concurrent alterations of these two genes. Presence of amplification in at least one locus was more common in tumors of higher grade (p = 0.018) and was associated with higher Ki-67 proliferation index (p = 0.036). CCND1 gene amplification was associated with shorter progression-free survival (PFS) in patients receiving aromatase inhibitors (AI) [16.0 months vs. 32.4 months, HR = 3.16 (95% CI 1.26-7.93), p = 0.014]. FGFR1 status did not significantly affect PFS of AI-treated women; however, objective response to AI was observed less frequently in FGFR1-amplified BC as compared to cases with normal FGFR1 copy number [2/15 (13.3%) vs. 22/46 (47.8%), p = 0.031]. Meanwhile, CCND1/FGFR1 gene status did not influence the outcome of tamoxifen-treated patients. CONCLUSION Presence of CCND1 and/or FGFR1 amplification is associated with worse outcomes of AI therapy in patients with metastatic BC.
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Affiliation(s)
- S N Aleksakhina
- Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, Saint-Petersburg, Russia, 197758
| | | | - A D Mikushina
- Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, Saint-Petersburg, Russia, 197758
| | - S E Kubrina
- Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, Saint-Petersburg, Russia, 197758
| | - V V Petkau
- Sverdlovskiy Regional Oncological Hospital, Ekatherinburg, Russia, 620036
| | - A O Ivantsov
- Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, Saint-Petersburg, Russia, 197758
| | | | - E N Imyanitov
- Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, Saint-Petersburg, Russia, 197758.,Saint-Petersburg Pediatric Medical University, Saint-Petersburg, Russia, 194100.,I.I. Mechnikov North-Western Medical University, Saint-Petersburg, Russia, 191015
| | - A G Iyevleva
- Laboratory of Molecular Oncology, N.N. Petrov Institute of Oncology, Saint-Petersburg, Russia, 197758. .,Saint-Petersburg Pediatric Medical University, Saint-Petersburg, Russia, 194100.
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5
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Hollis RL, Churchman M, Michie CO, Rye T, Knight L, McCavigan A, Perren T, Williams ARW, McCluggage WG, Kaplan RS, Jayson GC, Oza A, Harkin DP, Herrington CS, Kennedy R, Gourley C. High EMSY expression defines a BRCA-like subgroup of high-grade serous ovarian carcinoma with prolonged survival and hypersensitivity to platinum. Cancer 2019; 125:2772-2781. [PMID: 31154673 PMCID: PMC6771827 DOI: 10.1002/cncr.32079] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/11/2019] [Accepted: 01/15/2019] [Indexed: 11/14/2022]
Abstract
BACKGROUND Approximately half of high-grade serous ovarian carcinomas (HGSOCs) demonstrate homologous recombination repair (HR) pathway defects, resulting in a distinct clinical phenotype comprising hypersensitivity to platinum, superior clinical outcome, and greater sensitivity to poly(adenosine diphosphate-ribose) polymerase (PARP) inhibitors. EMSY, which is known to be amplified in breast and ovarian cancers, encodes a protein reported to bind and inactivate BRCA2. Thus, EMSY overexpression may mimic BRCA2 mutation, resulting in HR deficiency. However, to our knowledge, the phenotypic consequences of EMSY overexpression in HGSOC patients has not been explored. METHODS Here we investigate the impact of EMSY expression on clinical outcome and sensitivity to platinum-based chemotherapy using available data from transcriptomically characterized HGSOC cohorts. RESULTS High EMSY expression was associated with better clinical outcome in a cohort of 265 patients with HGSOC from Edinburgh (overall survival multivariable hazard ratio, 0.58 [95% CI, 0.38-0.88; P = .011] and progression-free survival multivariable hazard ratio, 0.62 [95% CI, 0.40-0.96; P = .030]). Superior outcome also was demonstrated in the Medical Research Council ICON7 clinical trial and multiple publicly available data sets. Patients within the Edinburgh cohort who had high EMSY expression were found to demonstrate greater rates of complete response to multiple platinum-containing chemotherapy regimens (radiological complete response rate of 44.4% vs 12.5% at second exposure; P = .035) and corresponding prolonged time to disease progression (median, 151.5 days vs 60.5 days after third platinum exposure; P = .004). CONCLUSIONS Patients with HGSOCs demonstrating high EMSY expression appear to experience prolonged survival and greater platinum sensitivity, reminiscent of BRCA-mutant cases. These data are consistent with the notion that EMSY overexpression may render HGSOCs HR deficient.
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Affiliation(s)
- Robert L. Hollis
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUnited Kingdom
| | - Michael Churchman
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUnited Kingdom
| | - Caroline O. Michie
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUnited Kingdom
| | - Tzyvia Rye
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUnited Kingdom
| | | | | | - Timothy Perren
- St. James's Institute of OncologySt. James's University HospitalLeedsUnited Kingdom
| | | | - W. Glenn McCluggage
- Center for Cancer Research and Cell BiologyQueen's University of BelfastBelfastUnited Kingdom
- Department of PathologyBelfast Health and Social Care TrustBelfastUnited Kingdom
| | - Richard S. Kaplan
- Medical Research Council Clinical Trials Unit at University College LondonLondonUnited Kingdom
| | - Gordon C. Jayson
- Division of Molecular and Clinical Cancer SciencesUniversity of ManchesterManchesterUnited Kingdom
| | - Amit Oza
- Cancer Clinical Research Unit, Division of Medical Oncology and Hematology, Princess Margaret Cancer CentreUniversity of TorontoTorontoOntarioCanada
| | - D. Paul Harkin
- Almac DiagnosticsCraigavonUnited Kingdom
- Center for Cancer Research and Cell BiologyQueen's University of BelfastBelfastUnited Kingdom
| | - C. Simon Herrington
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUnited Kingdom
- Department of PathologyUniversity of EdinburghEdinburghUnited Kingdom
- Division of Pathology, Centre for Comparative Pathology, Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUnited Kingdom
| | - Richard Kennedy
- Almac DiagnosticsCraigavonUnited Kingdom
- Center for Cancer Research and Cell BiologyQueen's University of BelfastBelfastUnited Kingdom
| | - Charlie Gourley
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular MedicineUniversity of EdinburghEdinburghUnited Kingdom
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6
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Kondrashova O, Scott CL. Clarifying the role of EMSY in DNA repair in ovarian cancer. Cancer 2019; 125:2720-2724. [PMID: 31154666 DOI: 10.1002/cncr.32135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Accepted: 03/13/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Olga Kondrashova
- Cancer Biology and Stem Cells Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Genetics & Computational Biology Department, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Clare L Scott
- Cancer Biology and Stem Cells Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria, Australia
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- Royal Women's Hospital, University of Melbourne, Melbourne, Victoria, Australia
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7
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Mohammedi L, Doula FD, Mesli F, Senhadji R. Cyclin D1 overexpression in Algerian breast cancer women: correlation with CCND1 amplification and clinicopathological parameters. Afr Health Sci 2019; 19:2140-2146. [PMID: 31656498 PMCID: PMC6794544 DOI: 10.4314/ahs.v19i2.38] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Cyclin D1 which is associated with cell cycle regulation is solidly established as an oncogene with an important pathogenetic role in breast carcinomas. OBJECTIVES The aim of this study was to relate the Cyclin D1 protein overexpression with the amplification of its gene CCND1 in Estrogen Receptors (ER) positive breast carcinomas, in order to investigate the prognostic effect of their aberrations in relation to ER status, also to correlate the Cyclin D1 overexpression with other prognostic parameters. MATERIALS AND METHODS Chromogenic in situ hybridization (CISH) was used to identify CCND1 amplification on formalin-fixed paraffin-embedded invasive ductal carcinoma, in which immunohistochemistry (IHC) had previously been performed in order to evaluate the pathological relevance of Cyclin D1 overexpression in human breast cancer (n = 138). RESULTS CCND1 amplification was identified in 17/138 (12.3%) tumors and 78/138 (56.5%) tumors have overexpressed Cyclin D1. A significant correlation was identified between CCND1 amplification and Cyclin D1 overexpression (P < 0.001) and both Cyclin D1 and CCND1 were related with ER expression. CONCLUSION Our results show a significant correlation between Cyclin D1 overexpression and CCND1 amplification. Overexpression of Cyclin D1was observed in high proportion of breast cancer which should be considered for routine diagnosis.
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8
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Macedo GS, Alemar B, Ashton-Prolla P. Reviewing the characteristics of BRCA and PALB2-related cancers in the precision medicine era. Genet Mol Biol 2019; 42:215-231. [PMID: 31067289 PMCID: PMC6687356 DOI: 10.1590/1678-4685-gmb-2018-0104] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 10/24/2018] [Indexed: 12/24/2022] Open
Abstract
Germline mutations in BRCA1 and BRCA2 (BRCA) genes confer high risk of developing cancer, especially breast and ovarian tumors. Since the cloning of these tumor suppressor genes over two decades ago, a significant amount of research has been done. Most recently, monoallelic loss-of-function mutations in PALB2 have also been shown to increase the risk of breast cancer. The identification of BRCA1, BRCA2 and PALB2 as proteins involved in DNA double-strand break repair by homologous recombination and of the impact of complete loss of BRCA1 or BRCA2 within tumors have allowed the development of novel therapeutic approaches for patients with germline or somatic mutations in said genes. Despite the advances, especially in the clinical use of PARP inhibitors, key gaps remain. Now, new roles for BRCA1 and BRCA2 are emerging and old concepts, such as the classical two-hit hypothesis for tumor suppression, have been questioned, at least for some BRCA functions. Here aspects regarding cancer predisposition, cellular functions, histological and genomic findings in BRCA and PALB2-related tumors will be presented, in addition to an up-to-date review of the evolution and challenges in the development and clinical use of PARP inhibitors.
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Affiliation(s)
- Gabriel S Macedo
- Post-Graduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.,Precision Medicine Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Barbara Alemar
- Post-Graduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Patricia Ashton-Prolla
- Post-Graduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.,Precision Medicine Program, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
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9
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Rizzolo P, Navazio AS, Silvestri V, Valentini V, Zelli V, Zanna I, Masala G, Bianchi S, Scarnò M, Tommasi S, Palli D, Ottini L. Somatic alterations of targetable oncogenes are frequently observed in BRCA1/2 mutation negative male breast cancers. Oncotarget 2018; 7:74097-74106. [PMID: 27765917 PMCID: PMC5342038 DOI: 10.18632/oncotarget.12272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 09/16/2016] [Indexed: 12/14/2022] Open
Abstract
Male breast cancer (MBC) is a rare disease. Due to its rarity, MBC research and clinical approach are mostly based upon data derived from its largely known female counterpart. We aimed at investigating whether MBC cases harbor somatic alterations of genes known as prognostic biomarkers and molecular therapeutic targets in female breast cancer. We examined 103 MBC cases, all characterized for germ-line BRCA1/2 mutations, for somatic alterations in PIK3CA, EGFR, ESR1 and CCND1 genes. Pathogenic mutations of PIK3CA were detected in 2% of MBCs. No pathogenic mutations were identified in ESR1 and EGFR. Gene copy number variations (CNVs) analysis showed amplification of PIK3CA in 8.1%, EGFR in 6.8% and CCND1 in 16% of MBCs, whereas deletion of ESR1 was detected in 15% of MBCs. Somatic mutations and gene amplification were found only in BRCA1/2 mutation negative MBCs. Significant associations emerged between EGFR amplification and large tumor size (T4), ER-negative and HER2-positive status, between CCND1 amplification and HER2-positive and MIB1-positive status, and between ESR1 deletion and ER-negative status. Our results show that amplification of targetable oncogenes is frequent in BRCA1/2 mutation negative MBCs and may identify MBC subsets characterized by aggressive phenotype that may benefit from potential targeted therapeutic approaches.
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Affiliation(s)
- Piera Rizzolo
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Anna Sara Navazio
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Virginia Valentini
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Veronica Zelli
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Ines Zanna
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute (ISPO), Florence, Italy
| | - Giovanna Masala
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute (ISPO), Florence, Italy
| | - Simonetta Bianchi
- Division of Pathological Anatomy, Department of Medical and Surgical Critical Care, University of Florence, Florence, Italy
| | - Marco Scarnò
- CINECA (Inter University Consortium for Super Computing), Rome, Italy
| | - Stefania Tommasi
- Molecular Genetics Laboratory, Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Domenico Palli
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute (ISPO), Florence, Italy
| | - Laura Ottini
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
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10
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Choi HJ, Joo HS, Won HY, Min KW, Kim HY, Son T, Oh YH, Lee JY, Kong G. Role of RBP2-Induced ER and IGF1R-ErbB Signaling in Tamoxifen Resistance in Breast Cancer. J Natl Cancer Inst 2017; 110:4443110. [DOI: 10.1093/jnci/djx207] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Accepted: 08/30/2017] [Indexed: 12/12/2022] Open
Affiliation(s)
- Hee-Joo Choi
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Hyeong-Seok Joo
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Hee-Young Won
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Kyueng-Whan Min
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Hyung-Yong Kim
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Taekwon Son
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Young-Ha Oh
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Jeong-Yeon Lee
- Institute for Bioengineering and Biopharmaceutical Research (IBBR), Hanyang University, Seoul, Republic of Korea
| | - Gu Kong
- Department of Pathology, College of Medicine, Hanyang University, Seoul, Republic of Korea
- Institute for Bioengineering and Biopharmaceutical Research (IBBR), Hanyang University, Seoul, Republic of Korea
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11
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Jelinic P, Eccles LA, Tseng J, Cybulska P, Wielgos M, Powell SN, Levine DA. The EMSY threonine 207 phospho-site is required for EMSYdriven suppression of DNA damage repair. Oncotarget 2017; 8:13792-13804. [PMID: 28099152 PMCID: PMC5355139 DOI: 10.18632/oncotarget.14637] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/04/2017] [Indexed: 01/07/2023] Open
Abstract
BRCA1 and BRCA2 are essential for the repair of double-strand DNA breaks, and alterations in these genes are a hallmark of breast and ovarian carcinomas. Other functionally related genes may also play important roles in carcinogenesis. Amplification of EMSY, a putative BRCAness gene, has been suggested to impair DNA damage repair by suppressing BRCA2 function. We employed direct repeat GFP (DR-GFP) and RAD51 foci formation assays to show that EMSY overexpression impairs the repair of damaged DNA, suggesting that EMSY belongs to the family of BRCAness proteins. We also identified a novel phospho-site at threonine 207 (T207) and demonstrated its role in EMSY-driven suppression of DNA damage repair. In vitro kinase assays established that protein kinase A (PKA) directly phosphorylates the T207 phospho-site. Immunoprecipitation experiments suggest that EMSY-driven suppression of DNA damage repair is a BRCA2-independent process. The data also suggest that EMSY amplification is a BRCAness feature, and may help to expand the population of patients who could benefit from targeted therapies that are also effective in BRCA1/2-mutant cancers.
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Affiliation(s)
- Petar Jelinic
- Laura and Isaac Perlmutter Cancer Center, Division of Gynecologic Oncology, Department of OB/GYN, NYU Langone Medical Center, New York, USA
| | - Laura A Eccles
- Departments of Radiation Oncology and Molecular Biology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Jill Tseng
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Paulina Cybulska
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Monicka Wielgos
- Laura and Isaac Perlmutter Cancer Center, Division of Gynecologic Oncology, Department of OB/GYN, NYU Langone Medical Center, New York, USA
| | - Simon N Powell
- Departments of Radiation Oncology and Molecular Biology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Douglas A Levine
- Laura and Isaac Perlmutter Cancer Center, Division of Gynecologic Oncology, Department of OB/GYN, NYU Langone Medical Center, New York, USA
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12
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Määttä KM, Nurminen R, Kankuri-Tammilehto M, Kallioniemi A, Laasanen SL, Schleutker J. Germline EMSY sequence alterations in hereditary breast cancer and ovarian cancer families. BMC Cancer 2017; 17:496. [PMID: 28738860 PMCID: PMC5525221 DOI: 10.1186/s12885-017-3488-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 07/17/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND BRCA1 and BRCA2 mutations explain approximately one-fifth of the inherited susceptibility in high-risk Finnish hereditary breast and ovarian cancer (HBOC) families. EMSY is located in the breast cancer-associated chromosomal region 11q13. The EMSY gene encodes a BRCA2-interacting protein that has been implicated in DNA damage repair and genomic instability. We analysed the role of germline EMSY variation in breast/ovarian cancer predisposition. The present study describes the first EMSY screening in patients with high familial risk for this disease. METHODS Index individuals from 71 high-risk, BRCA1/2-negative HBOC families were screened for germline EMSY sequence alterations in protein coding regions and exon-intron boundaries using Sanger sequencing and TaqMan assays. The identified variants were further screened in 36 Finnish HBOC patients and 904 controls. Moreover, one novel intronic deletion was screened in a cohort of 404 breast cancer patients unselected for family history. Haplotype block structure and the association of haplotypes with breast/ovarian cancer were analysed using Haploview. The functionality of the identified variants was predicted using Haploreg, RegulomeDB, Human Splicing Finder, and Pathogenic-or-Not-Pipeline 2. RESULTS Altogether, 12 germline EMSY variants were observed. Two alterations were located in the coding region, five alterations were intronic, and five alterations were located in the 3'untranslated region (UTR). Variant frequencies did not significantly differ between cases and controls. The novel variant, c.2709 + 122delT, was detected in 1 out of 107 (0.9%) breast cancer patients, and the carrier showed a bilateral form of the disease. The deletion was absent in 897 controls (OR = 25.28; P = 0.1) and in 404 breast cancer patients unselected for family history. No haplotype was identified to increase the risk of breast/ovarian cancer. Functional analyses suggested that variants, particularly in the 3'UTR, were located within regulatory elements. The novel deletion was predicted to affect splicing regulatory elements. CONCLUSIONS These results suggest that the identified EMSY variants are likely neutral at the population level. However, these variants may contribute to breast/ovarian cancer risk in single families. Additional analyses are warranted for rare novel intronic deletions and the 3'UTR variants predicted to have functional roles.
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Affiliation(s)
- Kirsi M Määttä
- Institute of Biosciences and Medical Technology - BioMediTech, University of Tampere, Lääkärinkatu 1, FI-33520, Tampere, Finland.,Fimlab Laboratories, Tampere University Hospital, Biokatu 4, FI-33520, Tampere, Finland
| | - Riikka Nurminen
- Institute of Biosciences and Medical Technology - BioMediTech, University of Tampere, Lääkärinkatu 1, FI-33520, Tampere, Finland.,Fimlab Laboratories, Tampere University Hospital, Biokatu 4, FI-33520, Tampere, Finland
| | - Minna Kankuri-Tammilehto
- Department of Clinical Genetics, Turku University Hospital, Kiinamyllynkatu 4-8, FI-20521, Turku, Finland
| | - Anne Kallioniemi
- Institute of Biosciences and Medical Technology - BioMediTech, University of Tampere, Lääkärinkatu 1, FI-33520, Tampere, Finland
| | - Satu-Leena Laasanen
- Department of Pediatrics, Genetics Outpatient Clinic, and Department of Dermatology, Tampere UniversityHospital, PO BOX 2000, FI-33521, Tampere, Finland.,Department of Dermatology, Tampere University Hospital, PO BOX 2000, FI-33521, Tampere, Finland
| | - Johanna Schleutker
- Institute of Biosciences and Medical Technology - BioMediTech, University of Tampere, Lääkärinkatu 1, FI-33520, Tampere, Finland. .,Fimlab Laboratories, Tampere University Hospital, Biokatu 4, FI-33520, Tampere, Finland. .,Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, FI-20014, Turku, Finland. .,Department of Medical Genetics, Turku University Hospital, Kiinamyllynkatu 10, FI-20521, Turku, Finland.
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13
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Navazio AS, Rizzolo P, Silvestri V, Valentini V, Zelli V, Zanna I, Masala G, Bianchi S, Tommasi S, Palli D, Ottini L. EMSY copy number variation in male breast cancers characterized for BRCA1 and BRCA2 mutations. Breast Cancer Res Treat 2016; 160:181-186. [PMID: 27628328 DOI: 10.1007/s10549-016-3976-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 09/06/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE Male breast cancer (MBC) is a rare disease that shares some similarities with female breast cancer (FBC). Like FBC, genetic susceptibility to MBC can be referred to mutations in BRCA1 and, particularly, BRCA2 genes. However, only about 10 % of MBCs are caused by BRCA1/2 germ-line mutations, while the largest part are sporadic cancers and may derive from somatic alterations. EMSY, a BRCA2 inactivating gene, emerged as a candidate gene involved in the pathogenesis of sporadic FBC, and its amplification was suggested to be the somatic counterpart of BRCA2 mutations. Considering the relevant role of BRCA2 in MBC, we aimed at investigating the role of EMSY gene copy number variations in male breast tumors. METHODS EMSY copy number variations were analyzed by quantitative real-time PCR with TaqMan probes in a selected series of 75 MBCs, characterized for BRCA1/2 mutations. RESULTS We reported EMSY amplification in 34.7 % of MBCs. A significant association emerged between EMSY amplification and BRCA1/2 mutations (p = 0.03). We identified two amplification subgroups characterized by low and high amplification levels, with BRCA2-related tumors mostly showing low EMSY amplification. CONCLUSIONS Our results show a high frequency of EMSY amplification in MBC, thus pointing to a role of EMSY in the pathogenesis of this disease. EMSY amplification may be a new feature that might uncover underlying molecular pathways of MBCs and may allow for the identification of MBC subgroups with potential clinical implication for targeted therapeutic approaches.
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Affiliation(s)
- Anna Sara Navazio
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Piera Rizzolo
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Valentina Silvestri
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Virginia Valentini
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Veronica Zelli
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy
| | - Ines Zanna
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute (ISPO), Florence, Italy
| | - Giovanna Masala
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute (ISPO), Florence, Italy
| | - Simonetta Bianchi
- Division of Pathological Anatomy, Department of Medical and Surgical Critical Care, University of Florence, Florence, Italy
| | - Stefania Tommasi
- Molecular Genetics Laboratory, Istituto Tumori "Giovanni Paolo II", Bari, Italy
| | - Domenico Palli
- Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute (ISPO), Florence, Italy
| | - Laura Ottini
- Department of Molecular Medicine, Sapienza University of Rome, Viale Regina Elena 324, 00161, Rome, Italy.
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14
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Matsui A, Fujimoto J, Ishikawa K, Ito E, Goshima N, Watanabe S, Semba K. Hepatocyte nuclear factor 1 beta induces transformation and epithelial-to-mesenchymal transition. FEBS Lett 2016; 590:1211-21. [PMID: 27001343 DOI: 10.1002/1873-3468.12147] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 03/11/2016] [Accepted: 03/16/2016] [Indexed: 12/31/2022]
Abstract
Gene amplification can be a cause of cancer, and driver oncogenes have been often identified in amplified regions. However, comprehensive analysis of other genes coamplified with an oncogene is rarely performed. We focused on the 17q12-21 amplicon, which contains ERBB2. We established a screening system for oncogenic activity with the NMuMG epithelial cell line. We identified a homeobox gene, HNF1B, as a novel cooperative transforming gene. HNF1B induced cancerous phenotypes, which were enhanced by the coexpression of ERBB2, and induced epithelial-to-mesenchymal transition and invasive phenotypes. These results suggest that HNF1B is a novel oncogene that can work cooperatively with ERBB2.
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Affiliation(s)
- Atsuka Matsui
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan
| | - Jiro Fujimoto
- Japan Biological Informatics Consortium (JBiC), Tokyo, Japan.,Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Kosuke Ishikawa
- Japan Biological Informatics Consortium (JBiC), Tokyo, Japan.,Research Institute for Science and Engineering, Waseda University, Tokyo, Japan
| | - Emi Ito
- Division of Gene Expression Analysis, Translational Research Center, Fukushima Medical University, Japan
| | - Naoki Goshima
- Division of Transcriptome Analysis, Translational Research Center, Fukushima Medical University, Japan.,Quantitative Proteomics Team, Molecular Profiling Research Center for Drug Discovery (molprof), National Institute of Advanced Industrial Science and Technology (AIST), Tokyo, Japan
| | - Shinya Watanabe
- Division of Gene Expression Analysis, Translational Research Center, Fukushima Medical University, Japan
| | - Kentaro Semba
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo, Japan.,Division of Gene Function Analysis, Translational Research Center, Fukushima Medical University, Japan
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15
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The SIPA1 -313A>G polymorphism is associated with prognosis in inoperable non-small cell lung cancer. Tumour Biol 2014; 36:1273-8. [PMID: 25352027 DOI: 10.1007/s13277-014-2753-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 10/20/2014] [Indexed: 12/16/2022] Open
Abstract
Polymorphism in signal-induced proliferation-associated 1 (SIPA1) gene may contribute to the development of metastasis in human cancers. In this preliminary study, we examined the association of the SIPA1 -313A>G (rs931127) polymorphism with overall survival (OS) and progression-free survival (PFS) in 351 inoperable patients with non-small cell lung cancer (NSCLC) treated with radiotherapy or radiochemotherapy (curative or palliative). The GG homozygotes had significantly shorter PFS under codominant and recessive models in all patients (hazard ratio (HR) 1.47, p = 0.035, and HR 1.47, p = 0.022, respectively) and in advanced stage subgroup (HR 1.49, p = 0.037, and HR 1.48, p = 0.023, respectively). The GG genotype was also associated with reduced OS and PFS (codominant model: HR 2.41, p = 0.020, and HR 2.34, p = 0.020, respectively; recessive model: HR 2.16, p = 0.026, and HR 2.18, p = 0.022, respectively) in radiotherapy alone subgroup. Moreover, the SIPA1 -313GG was identified as an independent adverse prognostic factor for PFS in the cohort. Our results indicate, for the first time, that the SIPA1 -313A>G may have a prognostic role in unresected NSCLC making it a potential predictor of poor survival due to earlier progression.
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16
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Cancer-testis antigen HCA587/MAGE-C2 interacts with BS69 and promotes its degradation in the ubiquitin-proteasome pathway. Biochem Biophys Res Commun 2014; 449:386-91. [PMID: 24866244 DOI: 10.1016/j.bbrc.2014.05.078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 05/16/2014] [Indexed: 11/23/2022]
Abstract
HCA587, also known as MAGE-C2, belonging to the MAGE gene family which is characterized by a conserved MAGE Homology Domain, is active in various types of tumors and silent in normal tissues except in male germ-line cells. The biological function of HCA587 is largely unknown. To analyze it, we attempted to identify protein partners of HCA587. We immunopurified HCA587-containing complex from HEK293 cells and identified BS69, a potential tumor suppressor, as an associated protein by mass spectrometry, and the following Immunoprecipitation and GST pull-down assays confirmed HCA587 interaction with BS69. Interestingly, overexpression of HCA587 promoted ubiquitination and the proteasomal degradation of BS69 whereas knockdown of endogenous HCA587 increased the protein level of BS69. Consistent with a functional role for BS69 in negatively regulating LMP1-induced NF-κB activation, overexpression of HCA587 resulted in a significant enhancement of LMP1-induced IL-6 production. These data indicate that HCA587 is a new negative regulator of BS69.
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17
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Lee GY, Haverty PM, Li L, Kljavin NM, Bourgon R, Lee J, Stern H, Modrusan Z, Seshagiri S, Zhang Z, Davis D, Stokoe D, Settleman J, de Sauvage FJ, Neve RM. Comparative oncogenomics identifies PSMB4 and SHMT2 as potential cancer driver genes. Cancer Res 2014; 74:3114-26. [PMID: 24755469 DOI: 10.1158/0008-5472.can-13-2683] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cancer genomes maintain a complex array of somatic alterations required for maintenance and progression of the disease, posing a challenge to identify driver genes among this genetic disorder. Toward this end, we mapped regions of recurrent amplification in a large collection (n=392) of primary human cancers and selected 620 genes whose expression is elevated in tumors. An RNAi loss-of-function screen targeting these genes across a panel of 32 cancer cell lines identified potential driver genes. Subsequent functional assays identified SHMT2, a key enzyme in the serine/glycine synthesis pathway, as necessary for tumor cell survival but insufficient for transformation. The 26S proteasomal subunit, PSMB4, was identified as the first proteasomal subunit with oncogenic properties promoting cancer cell survival and tumor growth in vivo. Elevated expression of SHMT2 and PSMB4 was found to be associated with poor prognosis in human cancer, supporting the development of molecular therapies targeting these genes or components of their pathways.
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Affiliation(s)
- Genee Y Lee
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Peter M Haverty
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Li Li
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Noelyn M Kljavin
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Richard Bourgon
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - James Lee
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Howard Stern
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Zora Modrusan
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Somasekar Seshagiri
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Zemin Zhang
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - David Davis
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - David Stokoe
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Jeffrey Settleman
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Frederic J de Sauvage
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
| | - Richard M Neve
- Authors' Affiliations: Departments of Discovery Oncology, Molecular Biology, Bioinformatics, Pathology, and Molecular Oncology, Genentech Inc., South San Francisco, California
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18
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Hou J, Wang Z, Yang L, Guo X, Yang G. The function of EMSY in cancer development. Tumour Biol 2014; 35:5061-6. [PMID: 24609898 DOI: 10.1007/s13277-013-1584-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Accepted: 12/19/2013] [Indexed: 10/25/2022] Open
Abstract
EMSY was first reported to bind BRCA2 and to inactivate the function of BRCA2, leading to the development of sporadic breast and ovarian cancers. The function of EMSY may also be involved in DNA damage repair, genomic instability, and chromatin remolding. Recent studies have shown that amplification of EMSY was also associated with other cancers such as prostate and pancreatic cancers and linked to tumor phenotypes and clinical outcomes. By reviewing literatures published since 2003, here, we have summarized the recent advances of EMSY in cancer development.
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Affiliation(s)
- Jing Hou
- Cancer Institute, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
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19
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Viré E, Curtis C, Davalos V, Git A, Robson S, Villanueva A, Vidal A, Barbieri I, Aparicio S, Esteller M, Caldas C, Kouzarides T. The breast cancer oncogene EMSY represses transcription of antimetastatic microRNA miR-31. Mol Cell 2014; 53:806-18. [PMID: 24582497 PMCID: PMC3988886 DOI: 10.1016/j.molcel.2014.01.029] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 11/11/2013] [Accepted: 01/23/2014] [Indexed: 11/16/2022]
Abstract
Amplification of the EMSY gene in sporadic breast and ovarian cancers is a poor prognostic indicator. Although EMSY has been linked to transcriptional silencing, its mechanism of action is unknown. Here, we report that EMSY acts as an oncogene, causing the transformation of cells in vitro and potentiating tumor formation and metastatic features in vivo. We identify an inverse correlation between EMSY amplification and miR-31 expression, an antimetastatic microRNA, in the METABRIC cohort of human breast samples. Re-expression of miR-31 profoundly reduced cell migration, invasion, and colony-formation abilities of cells overexpressing EMSY or haboring EMSY amplification. We show that EMSY is recruited to the miR-31 promoter by the DNA binding factor ETS-1, and it represses miR-31 transcription by delivering the H3K4me3 demethylase JARID1b/PLU-1/KDM5B. Altogether, these results suggest a pathway underlying the role of EMSY in breast cancer and uncover potential diagnostic and therapeutic targets in sporadic breast cancer.
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Affiliation(s)
- Emmanuelle Viré
- Gurdon Institute and Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK
| | - Christina Curtis
- Department of Oncology and Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, CB2 0RE, UK
| | - Veronica Davalos
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona 08907, Spain
| | - Anna Git
- Department of Oncology and Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, CB2 0RE, UK
| | - Samuel Robson
- Gurdon Institute and Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK
| | - Alberto Villanueva
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona 08907, Spain
| | - August Vidal
- Department of Pathological Anatomy, Bellvitge University Hospital, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona 08907, Spain
| | | | - Samuel Aparicio
- Department of Molecular Oncology, British Columbia Cancer Agency, 675 West 10(th) Avenue, V5Z 1L3 Vancouver, Canada
| | - Manel Esteller
- Cancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona 08907, Spain
| | - Carlos Caldas
- Department of Oncology and Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, CB2 0RE, UK; Cambridge Breast Unit, Addenbrooke's Hospital, Cambridge University Hospital, NHS Foundation Trust and NIHR Cambridge Biomedical Research Centre, Cambridge CB2 2QQ, UK; Cambridge Experimental Cancer Medicine Centre (ECMC), Cambridge CB2 0RE, UK
| | - Tony Kouzarides
- Gurdon Institute and Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK.
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20
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Li C, Bai J, Hao X, Zhang S, Hu Y, Zhang X, Yuan W, Hu L, Cheng T, Zetterberg A, Lee MH, Zhang J. Multi-gene fluorescence in situ hybridization to detect cell cycle gene copy number aberrations in young breast cancer patients. Cell Cycle 2014; 13:1299-305. [PMID: 24621502 DOI: 10.4161/cc.28201] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Breast cancer is a disease of cell cycle, and the dysfunction of cell cycle checkpoints plays a vital role in the occurrence and development of breast cancer. We employed multi-gene fluorescence in situ hybridization (M-FISH) to investigate gene copy number aberrations (CNAs) of 4 genes (Rb1, CHEK2, c-Myc, CCND1) that are involved in the regulation of cell cycle, in order to analyze the impact of gene aberrations on prognosis in the young breast cancer patients. Gene copy number aberrations of these 4 genes were more frequently observed in young breast cancer patients when compared with the older group. Further, these CNAs were more frequently seen in Luminal B type, Her2 overexpression, and tiple-negative breast cancer (TNBC) type in young breast cancer patients. The variations of CCND1, Rb1, and CHEK2 were significantly correlated with poor survival in the young breast cancer patient group, while the amplification of c-Myc was not obviously correlated with poor survival in young breast cancer patients. Thus, gene copy number aberrations (CNAs) of cell cycle-regulated genes can serve as an important tool for prognosis in young breast cancer patients.
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Affiliation(s)
- Chunyan Li
- Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Medical University; Ministry of Education; Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center of Cancer; Tianjin, People's Republic of China
| | - Jingchao Bai
- Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Medical University; Ministry of Education; Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center of Cancer; Tianjin, People's Republic of China
| | - Xiaomeng Hao
- Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Medical University; Ministry of Education; Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center of Cancer; Tianjin, People's Republic of China
| | - Sheng Zhang
- Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Medical University; Ministry of Education; Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center of Cancer; Tianjin, People's Republic of China
| | - Yunhui Hu
- Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Medical University; Ministry of Education; Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center of Cancer; Tianjin, People's Republic of China
| | - Xiaobei Zhang
- Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Medical University; Ministry of Education; Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center of Cancer; Tianjin, People's Republic of China
| | - Weiping Yuan
- Beijing Union Medical College Institute of Hematology and Blood Diseases Hospital; Chinese Academy of Medical Sciences; Tianjin, People's Republic of China
| | - Linping Hu
- Beijing Union Medical College Institute of Hematology and Blood Diseases Hospital; Chinese Academy of Medical Sciences; Tianjin, People's Republic of China
| | - Tao Cheng
- Beijing Union Medical College Institute of Hematology and Blood Diseases Hospital; Chinese Academy of Medical Sciences; Tianjin, People's Republic of China
| | - Anders Zetterberg
- Clinical Pathology Department of the Karolinska Hospital; Karolinska Institute; Solna, Sweden
| | - Mong-Hong Lee
- Department of Molecular and Cellular Oncology; The University of Texas MD Anderson Cancer Center; Houston, TX USA; Program in Cancer Biology; The University of Texas Graduate School of Biomedical Sciences at Houston; Houston, TX USA; Program in Genes and Development; The University of Texas Graduate School of Biomedical Sciences at Houston; Houston, TX USA
| | - J Zhang
- Key Laboratory of Breast Cancer Prevention and Therapy; Tianjin Medical University; Ministry of Education; Tianjin Medical University Cancer Institute and Hospital; National Clinical Research Center of Cancer; Tianjin, People's Republic of China
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21
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Pattje WJ, Melchers LJ, Slagter-Menkema L, Mastik MF, Schrijvers ML, Gibcus JH, Kluin PM, Hoegen-Chouvalova O, van der Laan BFAM, Roodenburg JLN, van der Wal JE, Schuuring E, Langendijk JA. FADD expression is associated with regional and distant metastasis in squamous cell carcinoma of the head and neck. Histopathology 2013; 63:263-70. [PMID: 23763459 DOI: 10.1111/his.12174] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 04/24/2013] [Indexed: 12/27/2022]
Abstract
AIMS The Fas-associated death domain gene (FADD) is often overexpressed in squamous cell carcinoma of the head and neck (HNSCC), and is considered to be a driver gene in amplification of the chromosomal 11q13.3 region. Amplification of 11q13.3 is associated with increased metastasis in HNSCC and breast cancer. The aim of this study was to investigate the association between FADD protein expression in advanced-stage HNSCC and clinicopathological features and outcome. METHODS AND RESULTS Tumour tissues of 177 HNSCC patients uniformly treated with primary surgery and postoperative radiotherapy were collected. FADD expression was assessed on pretreatment tumour biopsies using immunohistochemistry. High FADD expression was detected in 44% of the HNSCC patients. High expression was associated with an increased rate of lymph node metastasis (P = 0.001) and with a shorter distant metastasis-free interval (DMFI) (HR 2.6, 95% CI 1.0-6.7, P = 0.046) when lymph node metastases were present. CONCLUSIONS Our data show that an increase in FADD expression is associated with a higher incidence of lymph node metastasis at presentation, and with shorter DMFI when lymph node metastases are present. High FADD expression in the primary tumour could be a useful marker to select patients for systemic treatment strategies that reduce the risk of distant metastases.
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Affiliation(s)
- W J Pattje
- Department of Radiation Oncology, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands
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Wilkerson PM, Reis-Filho JS. the 11q13-q14 amplicon: Clinicopathological correlations and potential drivers. Genes Chromosomes Cancer 2012; 52:333-55. [DOI: 10.1002/gcc.22037] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Accepted: 11/01/2012] [Indexed: 01/04/2023] Open
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Lundgren K, Brown M, Pineda S, Cuzick J, Salter J, Zabaglo L, Howell A, Dowsett M, Landberg G. Effects of cyclin D1 gene amplification and protein expression on time to recurrence in postmenopausal breast cancer patients treated with anastrozole or tamoxifen: a TransATAC study. Breast Cancer Res 2012; 14:R57. [PMID: 22475046 PMCID: PMC3446392 DOI: 10.1186/bcr3161] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 01/18/2012] [Accepted: 04/04/2012] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Gene amplification of CCND1 is observed in a subgroup of breast cancers with poor prognosis, whereas overexpression of the protein cyclin D1 has been linked to both worse and better clinical outcome. CCND1 amplification and protein overexpression have also been associated with resistance to treatment with tamoxifen or even to a potentially detrimental effect of tamoxifen. METHODS To clarify these challenging and partly contrasting treatment predictive and prognostic links for cyclin D1 we analysed a large cohort of postmenopausal breast cancer patients randomised to receive either adjuvant anastrozole or tamoxifen, as part of the Arimidex, Tamoxifen, Alone or in Combination (ATAC) trial. The CCND1 amplification status and protein expression of cyclin D1 were assessed by chromogenic in situ hybridisation and immunohistochemistry, respectively, in 1,155 postmenopausal, oestrogen-receptor-positive breast cancer patients included in the TransATAC substudy. RESULTS Amplification of CCND1 was observed in 8.7% of the tumours and was associated with increased risk of disease recurrence (hazard ratio = 1.61; 95% confidence interval, 1.08 to 2.41) after adjustment for other clinicopathological parameters. In contrast, nuclear expression of cyclin D1 protein was associated with decreased recurrence rate (hazard ratio = 0.6; 95% confidence interval, 0.39 to 0.92). The intensity of nuclear or cytoplasmic expression was not of prognostic value. There was no significant interaction between cyclin D1 status and treatment efficacy, ruling out any major detrimental effect of tamoxifen in CCND1-amplified postmenopausal breast cancer. CONCLUSIONS In summary, CCND1 amplification and low nuclear expression of cyclin D1 predicted poor clinical outcome in postmenopausal breast cancer patients treated with either anastrozole or tamoxifen. TRIAL REGISTRATION Current Controlled Trials ISRCTN18233230.
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Affiliation(s)
- Katja Lundgren
- Center for Molecular Pathology, Department of Laboratory Medicine, Lund University, Malmö University Hospital, SE-205 02 Malmö, Sweden
- Breakthrough Breast Cancer Research Unit, School of Cancer, Enabling Sciences and Technology, University of Manchester, Manchester Academic Health Science Centre Paterson Institute for Cancer Research, The Christie NHS Foundation Trust, Wilmslow Road, Manchester M20 4BX, UK
| | - Matthew Brown
- Breakthrough Breast Cancer Research Unit, School of Cancer, Enabling Sciences and Technology, University of Manchester, Manchester Academic Health Science Centre Paterson Institute for Cancer Research, The Christie NHS Foundation Trust, Wilmslow Road, Manchester M20 4BX, UK
| | - Silvia Pineda
- Cancer Research UK Centre for Epidemiology, Mathematics and Statistics, Queen Mary University of London, Wolfson Institute of Preventive Medicine, London EC1M 6BQ, UK
| | - Jack Cuzick
- Cancer Research UK Centre for Epidemiology, Mathematics and Statistics, Queen Mary University of London, Wolfson Institute of Preventive Medicine, London EC1M 6BQ, UK
| | - Janine Salter
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - Lila Zabaglo
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - Anthony Howell
- Breakthrough Breast Cancer Research Unit, School of Cancer, Enabling Sciences and Technology, University of Manchester, Manchester Academic Health Science Centre Paterson Institute for Cancer Research, The Christie NHS Foundation Trust, Wilmslow Road, Manchester M20 4BX, UK
| | - Mitch Dowsett
- Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
- Royal Marsden Hospital, 237 Fulham Road, London SW3 6JJ, UK
| | - Göran Landberg
- Breakthrough Breast Cancer Research Unit, School of Cancer, Enabling Sciences and Technology, University of Manchester, Manchester Academic Health Science Centre Paterson Institute for Cancer Research, The Christie NHS Foundation Trust, Wilmslow Road, Manchester M20 4BX, UK
- Sahlgrenska Cancer Center, University of Gothenburg, 405 30 Göteborg, Sweden
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Characterisation of amplification patterns and target genes at chromosome 11q13 in CCND1-amplified sporadic and familial breast tumours. Breast Cancer Res Treat 2011; 133:583-94. [PMID: 22002566 DOI: 10.1007/s10549-011-1817-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Accepted: 10/01/2011] [Indexed: 01/19/2023]
Abstract
Amplification of chromosomal region 11q13, containing the cell cycle regulatory gene CCND1, is frequently found in breast cancer and other malignancies. It is associated with the favourable oestrogen receptor (ER)-positive breast tumour phenotype, but also with poor prognosis and treatment failure. 11q13 spans almost 14 Mb and contains more than 200 genes and is affected by various patterns of copy number gains, suggesting complex mechanisms and selective pressure during tumour progression. In this study, we used 32 k tiling BAC array CGH to analyse 94 CCND1-amplified breast tumours from sporadic, hereditary, and familial breast cancers to fine map chromosome 11q13. A set containing 281 CCND1-non-amplified breast tumours was used for comparisons. We used gene expression data to further validate the functional effect of gene amplification. We identified six core regions covering 11q13.1-q14.1 that were amplified in different combinations. The major core contained CCND1, whereas two cores were found proximal of CCND1 and three distal. The majority of the CCND1-amplified tumours were ER-positive and classified as luminal B. Furthermore, we found that CCND1 amplification is associated with a more aggressive phenotype within histological grade 2 tumours and luminal A subtype tumours. Amplification was equally prevalent in familial and sporadic tumours, but strikingly rare in BRCA1- and BRCA2-mutated tumours. We conclude that 11q13 includes many potential target genes in addition to CCND1.
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Malovannaya A, Lanz RB, Jung SY, Bulynko Y, Le NT, Chan DW, Ding C, Shi Y, Yucer N, Krenciute G, Kim BJ, Li C, Chen R, Li W, Wang Y, O'Malley BW, Qin J. Analysis of the human endogenous coregulator complexome. Cell 2011; 145:787-99. [PMID: 21620140 DOI: 10.1016/j.cell.2011.05.006] [Citation(s) in RCA: 333] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 02/22/2011] [Accepted: 05/05/2011] [Indexed: 01/03/2023]
Abstract
Elucidation of endogenous cellular protein-protein interactions and their networks is most desirable for biological studies. Here we report our study of endogenous human coregulator protein complex networks obtained from integrative mass spectrometry-based analysis of 3290 affinity purifications. By preserving weak protein interactions during complex isolation and utilizing high levels of reciprocity in the large dataset, we identified many unreported protein associations, such as a transcriptional network formed by ZMYND8, ZNF687, and ZNF592. Furthermore, our work revealed a tiered interplay within networks that share common proteins, providing a conceptual organization of a cellular proteome composed of minimal endogenous modules (MEMOs), complex isoforms (uniCOREs), and regulatory complex-complex interaction networks (CCIs). This resource will effectively fill a void in linking correlative genomic studies with an understanding of transcriptional regulatory protein functions within the proteome for formulation and testing of future hypotheses.
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Affiliation(s)
- Anna Malovannaya
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
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26
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Wilkerson PM, Dedes KJ, Wetterskog D, Mackay A, Lambros MB, Mansour M, Frankum J, Lord CJ, Natrajan R, Ashworth A, Reis-Filho JS. Functional characterization of EMSY
gene amplification in human cancers. J Pathol 2011; 225:29-42. [DOI: 10.1002/path.2944] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 05/18/2011] [Accepted: 05/18/2011] [Indexed: 11/10/2022]
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Dedes KJ, Wilkerson PM, Wetterskog D, Weigelt B, Ashworth A, Reis-Filho JS. Synthetic lethality of PARP inhibition in cancers lacking BRCA1 and BRCA2 mutations. Cell Cycle 2011; 10:1192-9. [PMID: 21487248 DOI: 10.4161/cc.10.8.15273] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Utilizing the concept of synthetic lethality has provided new opportunities for the development of targeted therapies, by allowing the targeting of loss of function genetic aberrations. In cancer cells with BRCA1 or BRCA2 loss of function, which harbor deficiency of DNA repair by homologous recombination, inhibition of PARP1 enzymatic activity leads to an accumulation of single strand breaks that are converted to double strand breaks but cannot be repaired by homologous recombination. Inhibition of PARP has therefore been advanced as a novel targeted therapy for cancers harboring BRCA1/2 mutations. Preclinical and preliminary clinical evidence, however, suggests a potentially broader scope for PARP inhibitors. Loss of function of various proteins involved in double strand break repair other than BRCA1/2 has been suggested to be synthetically lethal with PARP inhibition. Inactivation of these genes has been reported in a subset of human cancers and might therefore constitute predictive biomarkers for PARP inhibition. Here we discuss the evidence that the clinical use of PARP inhibition may be broader than targeting of cancers in BRCA1/2 germ-line mutation carriers.
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Affiliation(s)
- Konstantin J Dedes
- The Breakthrough Breast Cancer Research Centre, The Institute of Cancer Research, London, UK
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28
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Bane AL, Mulligan AM, Pinnaduwage D, O'Malley FP, Andrulis IL. EMSY and CCND1 amplification in familial breast cancer: from the Ontario site of the Breast Cancer Family Registry. Breast Cancer Res Treat 2011; 127:831-9. [PMID: 21327470 DOI: 10.1007/s10549-011-1380-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 01/28/2011] [Indexed: 12/12/2022]
Abstract
EMSY is a putative oncogene amplified in a minority of breast carcinomas, its protein product interacts with and transcriptionally silences BRCA2. We hypothesized that breast tumors from BRCA2 mutation carriers would be less likely than other familial breast cancers to exhibit EMSY amplification. As EMSY is located on 11q13 in proximity to CCND1, an established breast cancer oncogene, we also examined the amplification of CCND1 in the same tumor cohort. Amplification of EMSY and CCND1 were examined in 58 BRCA1-associated, 64 BRCA2-associated, and 242 familial non-BRCA1/BRCA2 breast cancers using fluorescent in situ hybridization (FISH). All tumors had a centralized pathology review and underwent molecular phenotyping by immunohistochemical profiling on tissue microarrays (TMAs). Tumors with amplification of EMSY and/or CCND1 were compared with non-amplified tumors for morphological appearance, molecular subtype, and overall survival. EMSY amplification was detected in 8% of BRCA1-associated, 0% of BRCA2-associated, and 9% of familial non-BRCA1/BRCA2 breast tumors (P = 0.036). CCND1 was amplified in 4% of BRCA1-associated, 13% of BRCA2-associated and 21% of non-BRCA1/BRCA2 breast tumors (P = 0.054). EMSY was amplified independently of CCND1 in 38% of cases. EMSY amplification was associated with increased tumor stage only; whereas CCND1 amplification was associated with high tumor grade, ER positivity, and inversely associated with the basal-like phenotype. There was a trend toward worse overall survival in ER-positive non-BRCA1/BRCA2 familial breast cancer patients whose tumors exhibited EMSY and CCND1 co-amplification. BRCA2-associated breast tumors are less likely than non-BRCA1/BRCA2 familial breast cancers to exhibit EMSY amplification. BRCA1-associated breast cancers are less likely than non-BRCA1/BRCA2 familial breast cancers to exhibit CCND1 amplification. EMSY amplification does occur independently of CCND1 amplification in a minority of familial breast cancers, supporting its role as a possible breast cancer oncogene.
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Affiliation(s)
- Anita L Bane
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada.
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Comparative disease pattern of a patient with a novel BRCA2 truncation and knockout models for BRCA2. Breast Cancer Res Treat 2010; 123:291-3. [PMID: 20151322 DOI: 10.1007/s10549-010-0776-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Accepted: 01/28/2010] [Indexed: 10/19/2022]
Abstract
We report a novel germline 490delCT mutation in BRCA2 gene, detected in a 38-year-old woman with breast cancer. The mutation originates a premature stop at codon 99, leading to a truncated protein, and has not been documented in any published report to the best of our knowledge.
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30
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Korkola J, Gray JW. Breast cancer genomes--form and function. Curr Opin Genet Dev 2010; 20:4-14. [PMID: 20060285 DOI: 10.1016/j.gde.2009.11.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2009] [Revised: 11/25/2009] [Accepted: 11/27/2009] [Indexed: 01/23/2023]
Abstract
This review summarizes advances in our understanding of the genomic and epigenomic abnormalities in breast cancers that are being revealed by the increasingly powerful suite of genomic analysis technologies. It summarizes the remarkable genomic heterogeneity that characterizes the disease, describes mechanisms that shape cancer genomes as they evolve toward metastasis, summarizes important recurrent aberrations that exist in spite of the genomic chaos and that contribute to breast cancer pathophysiology, and describes the use of preclinical models to identify drugs that will be effective against subsets of breast cancers carrying specific genomic and epigenomic abnormalities.
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Affiliation(s)
- James Korkola
- Life Sciences Division, Lawrence Berkeley National Laboratory, One Cyclotron Road, MS977-250, Berkeley, CA 94127, United States
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