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Glauser S, Ameline B, Andrei V, Harder D, Pauli C, Trautmann M, Hartmann W, Baumhoer D. NKX3.1 immunohistochemistry and methylome profiling in mesenchymal chondrosarcoma: additional diagnostic value for a well-defined disease? Pathology 2023:S0031-3025(23)00117-4. [PMID: 37225644 DOI: 10.1016/j.pathol.2023.03.003] [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: 11/23/2022] [Revised: 01/26/2023] [Accepted: 03/01/2023] [Indexed: 05/26/2023]
Abstract
Mesenchymal chondrosarcoma (MCS) is a rare and highly aggressive tumour of soft tissue and bone that is defined by an underlying and highly specific fusion transcript involving HEY1 and NCOA2. Histologically, the tumours show a biphasic appearance consisting of an undifferentiated blue and round cell component as well as islands of highly differentiated cartilage. Particularly in core needle biopsies, the chondromatous component can be missed and the non-specific morphology and immunophenotype of the round cell component can cause diagnostic challenges. We applied NKX3.1 immunohistochemistry which was recently reported as a highly specific marker as well as methylome and copy number profiling to a set of 45 well characterised MCS cases to evaluate their potential diagnostic value. Methylome profiling revealed a highly distinct cluster for MCS. Notably, the findings were reproducible also when analysing the round cell and cartilaginous component separately. Furthermore, four outliers were identified by methylome profiling for which the diagnosis had to be revised. NKX3.1 immunohistochemistry showed positivity in 36% of tumours, the majority of which was rather focal and weak. Taken together, NKX3.1 expression showed a low sensitivity but a high specificity in our analysis. Methylome profiling on the other hand represents a sensitive, specific and reliable tool to support the diagnosis of MCS, particularly if only the round cell component is obtained in a biopsy and the diagnosis is not suspected. Furthermore, it can aid in confirming the diagnosis in case RNA sequencing for the HEY1::NCOA2 fusion transcript is not available.
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Affiliation(s)
- Salomé Glauser
- Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Baptiste Ameline
- Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Vanghelita Andrei
- Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Dorothee Harder
- Department of Radiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Chantal Pauli
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland; University of Zurich, Zurich, Switzerland
| | - Marcel Trautmann
- Gerhard-Domagk-Institute of Pathology, University Hospital Münster, Münster, Germany; Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, University Hospital Münster, Münster, Germany
| | - Wolfgang Hartmann
- Gerhard-Domagk-Institute of Pathology, University Hospital Münster, Münster, Germany; Division of Translational Pathology, Gerhard-Domagk-Institute of Pathology, University Hospital Münster, Münster, Germany
| | - Daniel Baumhoer
- Bone Tumour Reference Centre, Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland.
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Polymorphic variants of the CASP3, CASP9, BCL-2 and NKX3-1 genes as candidate markers for prostate cancer susceptibility and poor prognosis. Mol Biol Rep 2022; 49:9079-9087. [PMID: 35708863 DOI: 10.1007/s11033-022-07654-0] [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: 12/17/2021] [Accepted: 05/27/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND There is an ongoing search for molecular markers that are specific, sensitive, and able to predict the stage of prostate cancer (PCa), which is the second most prevalent type of cancer in men worldwide. This study examined whether different single nucleotide polymorphisms (SNPs) were reliable markers of susceptibility to and prognosis of PCa in a sample of Brazilian patients. METHODS AND RESULTS DNA samples were extracted from peripheral blood cells of 283 PCa patients and matched with samples from healthy controls. Single nucleotide polymorphisms (SNPs in four genes (BCL-2-rs2279115, CASP3-rs4647603, CASP9-rs1052571, and NKX3-1-rs11781886) were genotyped by real-time PCR using the TaqMan® probe. Odds Ratios with 95% confidence intervals were calculated for allelic and genotypic frequencies. The association between polymorphic variants, risk of developing PCa, and clinicopathological characteristics was analyzed by univariate and multivariate logistic regression analysis. SNPs in CASP3, CASP9, and NKX3-1 genes, either alone or in combination (BCL-2+NKX3-1 and CASP3+NKX3-1) were associated with the risk of developing PCa. Genotypes and tumor histopathological data indicated that the BCL-2, NKX3-1, and CASP3 allelic variants, either alone or combined in pairs, were associated with a poor prognosis of PCa. CONCLUSIONS Genetic polymorphisms in CASP3, NKX3-1, and BCL-2 genes were associated with susceptibility to PCa. The SNPs in the three genes alone and the SNP in the BCL-2 gene combined with the other two genes were strongly associated with adverse outcomes in PCa patients and are promising candidates for molecular markers for PCa prognosis.
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3
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Fontana F, Anselmi M, Limonta P. Molecular mechanisms and genetic alterations in prostate cancer: From diagnosis to targeted therapy. Cancer Lett 2022; 534:215619. [PMID: 35276289 DOI: 10.1016/j.canlet.2022.215619] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/02/2022] [Accepted: 03/03/2022] [Indexed: 12/20/2022]
Abstract
Prostate cancer remains one of the most lethal malignancies among men worldwide. Although the primary tumor can be successfully managed by surgery and radiotherapy, advanced metastatic carcinoma requires better therapeutic approaches. In this context, a deeper understanding of the molecular mechanisms that underlie the initiation and progression of this disease is urgently needed, leading to the identification of new diagnostic/prognostic markers and the development of more effective treatments. Herein, the current state of knowledge of prostate cancer genetic alterations is discussed, with a focus on their potential in tumor detection and staging as well as in the screening of novel therapeutics.
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Affiliation(s)
- Fabrizio Fontana
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
| | - Martina Anselmi
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Patrizia Limonta
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
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4
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Chen E, Cario CL, Leong L, Lopez K, Márquez CP, Li PS, Oropeza E, Tenggara I, Cowan J, Simko JP, Kageyama R, Wells DK, Chan JM, Friedlander T, Aggarwal R, Paris PL, Feng F, Carroll PR, Witte JS. Cell-Free DNA Detection of Tumor Mutations in Heterogeneous, Localized Prostate Cancer Via Targeted, Multiregion Sequencing. JCO Precis Oncol 2021; 5:PO.20.00428. [PMID: 34250416 DOI: 10.1200/po.20.00428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/30/2021] [Accepted: 03/11/2021] [Indexed: 11/20/2022] Open
Abstract
Cell-free DNA (cfDNA) may allow for minimally invasive identification of biologically relevant genomic alterations and genetically distinct tumor subclones. Although existing biomarkers may detect localized prostate cancer, additional strategies interrogating genomic heterogeneity are necessary for identifying and monitoring aggressive disease. In this study, we aimed to evaluate whether circulating tumor DNA can detect genomic alterations present in multiple regions of localized prostate tumor tissue. METHODS Low-pass whole-genome and targeted sequencing with a machine-learning guided 2.5-Mb targeted panel were used to identify single nucleotide variants, small insertions and deletions (indels), and copy-number alterations in cfDNA. The majority of this study focuses on the subset of 21 patients with localized disease, although 45 total individuals were evaluated, including 15 healthy controls and nine men with metastatic castration-resistant prostate cancer. Plasma cfDNA was barcoded with duplex unique molecular identifiers. For localized cases, matched tumor tissue was collected from multiple regions (one to nine samples per patient) for comparison. RESULTS Somatic tumor variants present in heterogeneous tumor foci from patients with localized disease were detected in cfDNA, and cfDNA mutational burden was found to track with disease severity. Somatic tissue alterations were identified in cfDNA, including nonsynonymous variants in FOXA1, PTEN, MED12, and ATM. Detection of these overlapping variants was associated with seminal vesicle invasion (P = .019) and with the number of variants initially found in the matched tumor tissue samples (P = .0005). CONCLUSION Our findings demonstrate the potential of targeted cfDNA sequencing to detect somatic tissue alterations in heterogeneous, localized prostate cancer, especially in a setting where matched tumor tissue may be unavailable (ie, active surveillance or treatment monitoring).
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Affiliation(s)
- Emmalyn Chen
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Clinton L Cario
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Lancelote Leong
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Karen Lopez
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - César P Márquez
- Division of Hematology/Oncology, University of California, San Francisco, CA.,School of Medicine, Stanford University, Stanford, CA
| | - Patricia S Li
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - Erica Oropeza
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - Imelda Tenggara
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - Janet Cowan
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - Jeffry P Simko
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA.,Department of Anatomic Pathology, University of California, San Francisco, CA
| | - Robin Kageyama
- Parker Institute for Cancer Immunotherapy, San Francisco, CA
| | - Daniel K Wells
- Parker Institute for Cancer Immunotherapy, San Francisco, CA
| | - June M Chan
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Terence Friedlander
- Division of Hematology/Oncology, University of California, San Francisco, CA
| | - Rahul Aggarwal
- Division of Hematology/Oncology, University of California, San Francisco, CA
| | - Pamela L Paris
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - Felix Feng
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - Peter R Carroll
- Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
| | - John S Witte
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA.,Department of Urology, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA
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5
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Taylor RA, Fraser M, Rebello RJ, Boutros PC, Murphy DG, Bristow RG, Risbridger GP. The influence of BRCA2 mutation on localized prostate cancer. Nat Rev Urol 2019; 16:281-290. [DOI: 10.1038/s41585-019-0164-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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6
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Abstract
Over the last decade, advancements in massively-parallel DNA sequencing and computational biology have allowed for unprecedented insights into the fundamental mutational processes that underlie virtually every major cancer type. Two major cancer genomics consortia-The Cancer Genome Atlas (TCGA) and the International Cancer Genome Consortium (ICGC)-have produced rich databases of mutational, pathological, and clinical data that can be mined through web-based portals, allowing for correlative studies and testing of novel hypotheses on well-powered patient cohorts.In this chapter, we will review the impact of these technological developments on the understanding of molecular subtypes that promote prostate cancer initiation, progression, metastasis, and clinical aggression. In particular, we will focus on molecular subtypes that define clinically-relevant patient cohorts and assess how a better understanding of how these subtypes-in both somatic and germline genomes-may influence the clinical course for individual men diagnosed with prostate cancer.
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7
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Gerhauser C, Favero F, Risch T, Simon R, Feuerbach L, Assenov Y, Heckmann D, Sidiropoulos N, Waszak SM, Hübschmann D, Urbanucci A, Girma EG, Kuryshev V, Klimczak LJ, Saini N, Stütz AM, Weichenhan D, Böttcher LM, Toth R, Hendriksen JD, Koop C, Lutsik P, Matzk S, Warnatz HJ, Amstislavskiy V, Feuerstein C, Raeder B, Bogatyrova O, Schmitz EM, Hube-Magg C, Kluth M, Huland H, Graefen M, Lawerenz C, Henry GH, Yamaguchi TN, Malewska A, Meiners J, Schilling D, Reisinger E, Eils R, Schlesner M, Strand DW, Bristow RG, Boutros PC, von Kalle C, Gordenin D, Sültmann H, Brors B, Sauter G, Plass C, Yaspo ML, Korbel JO, Schlomm T, Weischenfeldt J. Molecular Evolution of Early-Onset Prostate Cancer Identifies Molecular Risk Markers and Clinical Trajectories. Cancer Cell 2018; 34:996-1011.e8. [PMID: 30537516 PMCID: PMC7444093 DOI: 10.1016/j.ccell.2018.10.016] [Citation(s) in RCA: 162] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 08/17/2018] [Accepted: 10/29/2018] [Indexed: 12/28/2022]
Abstract
Identifying the earliest somatic changes in prostate cancer can give important insights into tumor evolution and aids in stratifying high- from low-risk disease. We integrated whole genome, transcriptome and methylome analysis of early-onset prostate cancers (diagnosis ≤55 years). Characterization across 292 prostate cancer genomes revealed age-related genomic alterations and a clock-like enzymatic-driven mutational process contributing to the earliest mutations in prostate cancer patients. Our integrative analysis identified four molecular subgroups, including a particularly aggressive subgroup with recurrent duplications associated with increased expression of ESRP1, which we validate in 12,000 tissue microarray tumors. Finally, we combined the patterns of molecular co-occurrence and risk-based subgroup information to deconvolve the molecular and clinical trajectories of prostate cancer from single patient samples.
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Affiliation(s)
- Clarissa Gerhauser
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Francesco Favero
- Finsen Laboratory, Rigshospitalet, DK-2200, Copenhagen, Denmark; Biotech Research & Innovation Centre (BRIC), University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Thomas Risch
- Max Planck Institute for Molecular Genetics, Otto Warburg Laboratory Gene Regulation and Systems Biology of Cancer, Ihnestrasse 63-73, 14195 Berlin, Germany
| | - Ronald Simon
- Department of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Lars Feuerbach
- Division Applied Bioinformatics, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Yassen Assenov
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Doreen Heckmann
- Division of Cancer Genome Research, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Nikos Sidiropoulos
- Finsen Laboratory, Rigshospitalet, DK-2200, Copenhagen, Denmark; Biotech Research & Innovation Centre (BRIC), University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Sebastian M Waszak
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, 69120 Heidelberg, Germany
| | - Daniel Hübschmann
- Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; Department for Bioinformatics and Functional Genomics, Institute of Pharmacy and Molecular Biotechnology and Bioquant, University of Heidelberg, Heidelberg 69120, Germany; Department of Pediatric Immunology, Hematology and Oncology, University Hospital, Heidelberg 69120, Germany
| | - Alfonso Urbanucci
- Centre for Molecular Medicine Norway, Nordic European Molecular Biology Laboratory Partnership, Forskningsparken, University of Oslo, 0316 Oslo, Norway; Institute for Cancer Genetics and Informatics, Oslo University Hospital, 0316 Oslo, Norway; Department of Core Facilities, Institute for Cancer Research, Oslo University Hospital, 0316 Oslo, Norway
| | - Etsehiwot G Girma
- Finsen Laboratory, Rigshospitalet, DK-2200, Copenhagen, Denmark; Biotech Research & Innovation Centre (BRIC), University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Vladimir Kuryshev
- Division of Cancer Genome Research, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Leszek J Klimczak
- Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, Durham, 27709 NC, USA
| | - Natalie Saini
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, Durham, 27709 NC, USA
| | - Adrian M Stütz
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, 69120 Heidelberg, Germany
| | - Dieter Weichenhan
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Lisa-Marie Böttcher
- Department of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Reka Toth
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Josephine D Hendriksen
- Finsen Laboratory, Rigshospitalet, DK-2200, Copenhagen, Denmark; Biotech Research & Innovation Centre (BRIC), University of Copenhagen, DK-2200, Copenhagen, Denmark
| | - Christina Koop
- Department of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Pavlo Lutsik
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Sören Matzk
- Max Planck Institute for Molecular Genetics, Otto Warburg Laboratory Gene Regulation and Systems Biology of Cancer, Ihnestrasse 63-73, 14195 Berlin, Germany
| | - Hans-Jörg Warnatz
- Max Planck Institute for Molecular Genetics, Otto Warburg Laboratory Gene Regulation and Systems Biology of Cancer, Ihnestrasse 63-73, 14195 Berlin, Germany
| | - Vyacheslav Amstislavskiy
- Max Planck Institute for Molecular Genetics, Otto Warburg Laboratory Gene Regulation and Systems Biology of Cancer, Ihnestrasse 63-73, 14195 Berlin, Germany
| | - Clarissa Feuerstein
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; Faculty of Biosciences, Heidelberg University, 69120 Heidelberg, Germany
| | - Benjamin Raeder
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, 69120 Heidelberg, Germany
| | - Olga Bogatyrova
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | | | - Claudia Hube-Magg
- Department of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Martina Kluth
- Department of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Hartwig Huland
- Martini-Clinic Prostate Cancer Center at the University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany
| | - Markus Graefen
- Martini-Clinic Prostate Cancer Center at the University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany
| | - Chris Lawerenz
- Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Gervaise H Henry
- Department of Urology, UT Southwestern Medical Center, Dallas, TX 75390-9110, USA
| | - Takafumi N Yamaguchi
- Informatics & Biocomputing Program, Ontario Institute for Cancer Research, Toronto, Canada
| | - Alicia Malewska
- Department of Urology, UT Southwestern Medical Center, Dallas, TX 75390-9110, USA
| | - Jan Meiners
- Department of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Daniela Schilling
- Division of Cancer Genome Research, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; NCT Trial Center, National Center for Tumor Diseases and German Cancer Research Center, 69120 Heidelberg, Germany
| | - Eva Reisinger
- Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Roland Eils
- Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; Department for Bioinformatics and Functional Genomics, Institute of Pharmacy and Molecular Biotechnology and Bioquant, University of Heidelberg, Heidelberg 69120, Germany
| | - Matthias Schlesner
- Division of Theoretical Bioinformatics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; Bioinformatics and Omics Data Analytics (B240), German Cancer Research Center (DKFZ), Heidelberg 69120, Germany
| | - Douglas W Strand
- Department of Urology, UT Southwestern Medical Center, Dallas, TX 75390-9110, USA
| | - Robert G Bristow
- Manchester Cancer Research Centre, University of Manchester, 555 Wilmslow Road, Manchester, UK
| | - Paul C Boutros
- Ontario Institute for Cancer Research, Toronto, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Christof von Kalle
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany; Division of Translational Oncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Dmitry Gordenin
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, Durham, 27709 NC, USA
| | - Holger Sültmann
- Division of Cancer Genome Research, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Benedikt Brors
- Division Applied Bioinformatics, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany; National Center for Tumor Diseases (NCT), 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Guido Sauter
- Department of Pathology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Christoph Plass
- Division of Epigenomics and Cancer Risk Factors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Marie-Laure Yaspo
- Max Planck Institute for Molecular Genetics, Otto Warburg Laboratory Gene Regulation and Systems Biology of Cancer, Ihnestrasse 63-73, 14195 Berlin, Germany
| | - Jan O Korbel
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, 69120 Heidelberg, Germany.
| | - Thorsten Schlomm
- Martini-Clinic Prostate Cancer Center at the University Medical Center Hamburg-Eppendorf, Martinistrasse 52, D-20246 Hamburg, Germany; Charité Universitätsmedizin Berlin, Charitéplatz 1, D-10117 Berlin, Germany.
| | - Joachim Weischenfeldt
- Finsen Laboratory, Rigshospitalet, DK-2200, Copenhagen, Denmark; Biotech Research & Innovation Centre (BRIC), University of Copenhagen, DK-2200, Copenhagen, Denmark; European Molecular Biology Laboratory (EMBL), Genome Biology Unit, 69120 Heidelberg, Germany; Charité Universitätsmedizin Berlin, Charitéplatz 1, D-10117 Berlin, Germany.
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8
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Ali HEA, Lung PY, Sholl AB, Gad SA, Bustamante JJ, Ali HI, Rhim JS, Deep G, Zhang J, Abd Elmageed ZY. Dysregulated gene expression predicts tumor aggressiveness in African-American prostate cancer patients. Sci Rep 2018; 8:16335. [PMID: 30397274 PMCID: PMC6218553 DOI: 10.1038/s41598-018-34637-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 10/22/2018] [Indexed: 12/25/2022] Open
Abstract
Molecular mechanisms underlying the health disparity of prostate cancer (PCa) have not been fully determined. In this study, we applied bioinformatic approach to identify and validate dysregulated genes associated with tumor aggressiveness in African American (AA) compared to Caucasian American (CA) men with PCa. We retrieved and analyzed microarray data from 619 PCa patients, 412 AA and 207 CA, and we validated these genes in tumor tissues and cell lines by Real-Time PCR, Western blot, immunocytochemistry (ICC) and immunohistochemistry (IHC) analyses. We identified 362 differentially expressed genes in AA men and involved in regulating signaling pathways associated with tumor aggressiveness. In PCa tissues and cells, NKX3.1, APPL2, TPD52, LTC4S, ALDH1A3 and AMD1 transcripts were significantly upregulated (p < 0.05) compared to normal cells. IHC confirmed the overexpression of TPD52 (p = 0.0098) and LTC4S (p < 0.0005) in AA compared to CA men. ICC and Western blot analyses additionally corroborated this observation in PCa cells. These findings suggest that dysregulation of transcripts in PCa may drive the disparity of PCa outcomes and provide new insights into development of new therapeutic agents against aggressive tumors. More studies are warranted to investigate the clinical significance of these dysregulated genes in promoting the oncogenic pathways in AA men.
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Affiliation(s)
- Hamdy E A Ali
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M Health Sciences Center, Kingsville, TX, USA.,Department of Radiobiological Applications, Nuclear Research Center, Atomic Energy Authority, Cairo, Egypt
| | - Pei-Yau Lung
- Department of Statistics, Florida State University, Tallahassee, FL, USA
| | - Andrew B Sholl
- Departments of Pathology, Tulane University School of Medicine, New Orleans, LA, USA
| | - Shaimaa A Gad
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M Health Sciences Center, Kingsville, TX, USA
| | - Juan J Bustamante
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M Health Sciences Center, Kingsville, TX, USA
| | - Hamed I Ali
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M Health Sciences Center, Kingsville, TX, USA
| | - Johng S Rhim
- Department of Surgery, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Gagan Deep
- Department of Cancer Biology, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Jinfeng Zhang
- Department of Statistics, Florida State University, Tallahassee, FL, USA
| | - Zakaria Y Abd Elmageed
- Department of Pharmaceutical Sciences, Rangel College of Pharmacy, Texas A&M Health Sciences Center, Kingsville, TX, USA.
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9
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Feutren T, Herrera FG. Prostate irradiation with focal dose escalation to the intraprostatic dominant nodule: a systematic review. Prostate Int 2018; 6:75-87. [PMID: 30140656 PMCID: PMC6104294 DOI: 10.1016/j.prnil.2018.03.005] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/10/2018] [Accepted: 03/21/2018] [Indexed: 12/22/2022] Open
Abstract
Radiation therapy (RT) is a curative treatment option for localized prostate cancer. Prostate irradiation with focal dose escalation to the intraprostatic dominant nodule (IDN) is an emerging treatment option that involves the prophylactic irradiation of the whole prostate while increasing RT doses to the visible prostatic tumor. Because of the lack of large multicentre trials, a systematic review was performed in an attempt to get an overview on the feasibility and efficacy of focal dose escalation to the IDN. A bibliographic search for articles in English, which were listed in MEDLINE from 2000 to 2016 to identify publications on RT with focal directed boost to the IDN, was performed. The review was completed following the Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Twenty-two articles describing 1,378 patients treated with RT using focal boost were identified and fulfilled the selection criteria. Intensity-modulated radiation therapy (IMRT) was used in 720 patients (52.3%), volumetric modulated arc therapy was used in 45 patients (3.3%), stereotactic body radiation therapy (SBRT) in 113 patients (8.2%), and low–dose rate and high–dose rate brachytherapy (BT) were used in 305 patients (22.1%) and 195 patients (14.1%), respectively. Use of androgen deprivation therapy varied substantially among series. Biochemical disease-free survival at 5 years was reported for a cohort of 812 (58.9%) patients. The combined median biochemical disease-free survival for this group of patients was 85% (range: 78.8–100%; 95% confidence interval: 77.1–82.7%). The average occurrence of grade III or worse gastrointestinal and genitourinary late toxicity was, respectively, 2.5% and 3.1% for intensity-modulated RT boost, 10% and 6% for stereotactic body RT, 6% and 2% for low–dose rate BT, and 4% and 4.3% for high–dose rate BT. This review shows encouraging results for focal dose escalation to the IDN with acceptable short- to medium-term side effects and biochemical disease control rates. However, owing to the heterogeneity of patient population and the short follow-up, the results should be interpreted with caution. Considering that the clinical endpoint in the studies was biochemical recurrence, the use and duration of androgen deprivation therapy administration should be carefully considered before driving definitive conclusions. Randomized trials with long-term follow-up are needed before this technique can be generally recommended.
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Affiliation(s)
- Thomas Feutren
- Department of Radiotherapy, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
- Current Position Department of Radiotherapy, Institut de Cancérologie de Lorraine, Nancy, France
| | - Fernanda G. Herrera
- Department of Radiotherapy, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
- Corresponding author. Rue du Bugnon 46, 1011, Lausanne, Switzerland.
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10
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Deletion of 8p is an independent prognostic parameter in prostate cancer. Oncotarget 2018; 8:379-392. [PMID: 27880722 PMCID: PMC5352127 DOI: 10.18632/oncotarget.13425] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 11/12/2016] [Indexed: 11/25/2022] Open
Abstract
Deletion of chromosome 8p is the second most frequent genomic alteration in prostate cancer. To better understand its clinical significance, 8p deletion was analyzed by fluorescence in-situ hybridization on a prostate cancer tissue microarray. 8p deletion was found in 2,581 of 7,017 cancers (36.8%), and was linked to unfavorable tumor phenotype. 8p deletion increased from 29.5% in 4,456 pT2 and 47.8% in 1,598 pT3a to 53.0% in 931 pT3b-pT4 cancers (P < 0,0001). Deletions of 8p were detected in 25.5% of 1,653 Gleason ≤ 3 + 3, 36.6% of 3,880 Gleason 3 + 4, 50.2% of 1,090 Gleason 4 + 3, and 51.1% of 354 Gleason ≥ 4 + 4 tumors (P < 0,0001). 8p deletions were strongly linked to biochemical recurrence (P < 0.0001) independently from established pre- and postoperative prognostic factors (P = 0.0100). However, analysis of morphologically defined subgroups revealed, that 8p deletion lacked prognostic significance in subgroups with very good (Gleason ≤ 3 + 3, 3 + 4 with ≤ 5% Gleason 4) or very poor prognosis (pT3b, Gleason ≥ 8, pN1). 8p deletions were markedly more frequent in cancers with (53.5%) than without PTEN deletions (36.4%; P < 0,0001) and were slightly more frequent in ERG-positive (40.9%) than in ERG-negative cancers (34.7%, P < 0.0001) due to the association with the ERG-associated PTEN deletion. Cancers with 8p/PTEN co-deletions had a strikingly worse prognosis than cancers with deletion of PTEN or 8p alone (P ≤ 0.0003). In summary, 8p deletion is an independent prognostic parameter in prostate cancer that may act synergistically with PTEN deletions. Even statistically independent prognostic biomarkers like 8p may have limited clinical impact in morphologically well defined high or low risk cancers.
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11
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O'Sullivan AG, Eivers SB, Mulvaney EP, Kinsella BT. Regulated expression of the TPβ isoform of the human T prostanoid receptor by the tumour suppressors FOXP1 and NKX3.1: Implications for the role of thromboxane in prostate cancer. Biochim Biophys Acta Mol Basis Dis 2017; 1863:3153-3169. [PMID: 28890397 DOI: 10.1016/j.bbadis.2017.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/16/2017] [Accepted: 09/07/2017] [Indexed: 12/13/2022]
Abstract
The prostanoid thromboxane (TX)A2 signals through the TPα and TPβ isoforms of T Prostanoid receptor (TP) that are transcriptionally regulated by distinct promoters termed Prm1 and Prm3, respectively, within the TBXA2R gene. We recently demonstrated that expression of TPα and TPβ is increased in PCa, differentially correlating with Gleason grade and with altered CpG methylation of the individual Prm1/Prm3 regions within the TBXA2R. The current study sought to localise the sites of CpG methylation within Prm1 and Prm3, and to identify the main transcription factors regulating TPβ expression through Prm3 in the prostate adenocarcinoma PC-3 and LNCaP cell lines. Bisulfite sequencing revealed extensive differences in the pattern and status of CpG methylation of the individual Prm1 and Prm3 regions that regulate TPα and TPβ expression, respectively, within the TBXA2R. More specifically, Prm1 is predominantly hypomethylated while Prm3 is hypermethylated across its entire sequence in PC-3 and LNCaP cells. Furthermore, the tumour suppressors FOXP1 and NKX3.1, strongly implicated in PCa development, were identified as key transcription factors regulating TPβ expression through Prm3 in both PCa cell lines. Specific siRNA-disruption of FOXP1 and NKX3.1 each coincided with up-regulated TPβ protein and mRNA expression, while genetic-reporter and chromatin immunoprecipitation (ChIP) analyses confirmed that both FOXP1 and NKX3.1 bind to cis‑elements within Prm3 to transcriptionally repress TPβ in the PCa lines. Collectively these data identify Prm3/TPβ as a bona fide target of FOXP1 and NKX3.1 regulation, providing a mechanistic basis, at least in part, for the highly significant upregulation of TPβ expression in PCa.
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Affiliation(s)
- Aine G O'Sullivan
- UCD School of Biomolecular and Biomedical Sciences, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Sarah B Eivers
- UCD School of Biomolecular and Biomedical Sciences, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eamon P Mulvaney
- UCD School of Biomolecular and Biomedical Sciences, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - B Therese Kinsella
- UCD School of Biomolecular and Biomedical Sciences, UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland.
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12
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Abstract
Although most prostate cancer (PCa) cases are not life-threatening, approximately 293 000 men worldwide die annually due to PCa. These lethal cases are thought to be caused by coordinated genomic alterations that accumulate over time. Recent genome-wide analyses of DNA from subjects with PCa have revealed most, if not all, genetic changes in both germline and PCa tumor genomes. In this article, I first review the major, somatically acquired genomic characteristics of various subtypes of PCa. I then recap key findings on the relationships between genomic alterations and clinical parameters, such as biochemical recurrence or clinical relapse, metastasis and cancer-specific mortality. Finally, I outline the need for, and challenges with, validation of recent findings in prospective studies for clinical utility. It is clearer now than ever before that the landscape of somatically acquired aberrations in PCa is highlighted by DNA copy number alterations (CNAs) and TMPRSS2-ERG fusion derived from complex rearrangements, numerous single nucleotide variations or mutations, tremendous heterogeneity, and continuously punctuated evolution. Genome-wide CNAs, PTEN loss, MYC gain in primary tumors, and TP53 loss/mutation and AR amplification/mutation in advanced metastatic PCa have consistently been associated with worse cancer prognosis. With this recently gained knowledge, it is now an opportune time to develop DNA-based tests that provide more accurate patient stratification for prediction of clinical outcome, which will ultimately lead to more personalized cancer care than is possible at present.
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Affiliation(s)
- Wennuan Liu
- Program for Personalized Cancer Care, Research Institute, NorthShore University HealthSystem, Evanston, IL, USA
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13
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Dal Pra A, Locke JA, Borst G, Supiot S, Bristow RG. Mechanistic Insights into Molecular Targeting and Combined Modality Therapy for Aggressive, Localized Prostate Cancer. Front Oncol 2016; 6:24. [PMID: 26909338 PMCID: PMC4754414 DOI: 10.3389/fonc.2016.00024] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Accepted: 01/22/2016] [Indexed: 12/12/2022] Open
Abstract
Radiation therapy (RT) is one of the mainstay treatments for prostate cancer (PCa). The potentially curative approaches can provide satisfactory results for many patients with non-metastatic PCa; however, a considerable number of individuals may present disease recurrence and die from the disease. Exploiting the rich molecular biology of PCa will provide insights into how the most resistant tumor cells can be eradicated to improve treatment outcomes. Important for this biology-driven individualized treatment is a robust selection procedure. The development of predictive biomarkers for RT efficacy is therefore of utmost importance for a clinically exploitable strategy to achieve tumor-specific radiosensitization. This review highlights the current status and possible opportunities in the modulation of four key processes to enhance radiation response in PCa by targeting the: (1) androgen signaling pathway; (2) hypoxic tumor cells and regions; (3) DNA damage response (DDR) pathway; and (4) abnormal extra-/intracell signaling pathways. In addition, we discuss how and which patients should be selected for biomarker-based clinical trials exploiting and validating these targeted treatment strategies with precision RT to improve cure rates in non-indolent, localized PCa.
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Affiliation(s)
- Alan Dal Pra
- Radiation Medicine Program, Ontario Cancer Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Jennifer A Locke
- Radiation Medicine Program, Ontario Cancer Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Gerben Borst
- Radiation Medicine Program, Ontario Cancer Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
| | - Stephane Supiot
- Integrated Center of Oncology (ICO) René Gauducheau , Nantes , France
| | - Robert G Bristow
- Radiation Medicine Program, Ontario Cancer Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
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14
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ERG expression in prostate cancer: biological relevance and clinical implication. J Cancer Res Clin Oncol 2015; 142:1781-93. [DOI: 10.1007/s00432-015-2096-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 12/10/2015] [Indexed: 01/09/2023]
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15
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Biomarkers for prostate cancer: present challenges and future opportunities. Future Sci OA 2015; 2:FSO72. [PMID: 28031932 PMCID: PMC5137959 DOI: 10.4155/fso.15.72] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 08/10/2015] [Indexed: 01/30/2023] Open
Abstract
Prostate cancer (PCa) has variable biological potential with multiple treatment options. A more personalized approach, therefore, is needed to better define men at higher risk of developing PCa, discriminate indolent from aggressive disease and improve risk stratification after treatment by predicting the likelihood of progression. This may improve clinical decision-making regarding management, improve selection for active surveillance protocols and minimize morbidity from treatment. Discovery of new biomarkers associated with prostate carcinogenesis present an opportunity to provide patients with novel genetic signatures to better understand their risk of developing PCa and help forecast their clinical course. In this review, we examine the current literature evaluating biomarkers in PCa. We also address current limitations and present several ideas for future studies.
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16
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Rybak AP, Bristow RG, Kapoor A. Prostate cancer stem cells: deciphering the origins and pathways involved in prostate tumorigenesis and aggression. Oncotarget 2015; 6:1900-19. [PMID: 25595909 PMCID: PMC4385825 DOI: 10.18632/oncotarget.2953] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2015] [Accepted: 12/09/2015] [Indexed: 12/18/2022] Open
Abstract
The cells of the prostate gland are dependent on cell signaling pathways to regulate their growth, maintenance and function. However, perturbations in key signaling pathways, resulting in neoplastic transformation of cells in the prostate epithelium, are likely to generate subtypes of prostate cancer which may subsequently require different treatment regimes. Accumulating evidence supports multiple sources of stem cells in the prostate epithelium with distinct cellular origins for prostate tumorigenesis documented in animal models, while human prostate cancer stem-like cells (PCSCs) are typically enriched by cell culture, surface marker expression and functional activity assays. As future therapies will require a deeper understanding of its cellular origins as well as the pathways that drive PCSC maintenance and tumorigenesis, we review the molecular and functional evidence supporting dysregulation of PI3K/AKT, RAS/MAPK and STAT3 signaling in PCSCs, the development of castration resistance, and as a novel treatment approach for individual men with prostate cancer.
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Affiliation(s)
- Adrian P Rybak
- McMaster Institute of Urology, Division of Urology, Department of Surgery, McMaster University, ON, Canada.,St. Joseph's Hospital, Hamilton, ON, Canada
| | - Robert G Bristow
- Princess Margaret Cancer Centre (University Health Network), ON, Canada.,Departments of Radiation Oncology and Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Anil Kapoor
- McMaster Institute of Urology, Division of Urology, Department of Surgery, McMaster University, ON, Canada.,St. Joseph's Hospital, Hamilton, ON, Canada
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17
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Wilkins A, Dearnaley D, Somaiah N. Genomic and Histopathological Tissue Biomarkers That Predict Radiotherapy Response in Localised Prostate Cancer. BIOMED RESEARCH INTERNATIONAL 2015; 2015:238757. [PMID: 26504789 PMCID: PMC4609338 DOI: 10.1155/2015/238757] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 05/24/2015] [Indexed: 12/16/2022]
Abstract
Localised prostate cancer, in particular, intermediate risk disease, has varied survival outcomes that cannot be predicted accurately using current clinical risk factors. External beam radiotherapy (EBRT) is one of the standard curative treatment options for localised disease and its efficacy is related to wide ranging aspects of tumour biology. Histopathological techniques including immunohistochemistry and a variety of genomic assays have been used to identify biomarkers of tumour proliferation, cell cycle checkpoints, hypoxia, DNA repair, apoptosis, and androgen synthesis, which predict response to radiotherapy. Global measures of genomic instability also show exciting capacity to predict survival outcomes following EBRT. There is also an urgent clinical need for biomarkers to predict the radiotherapy fraction sensitivity of different prostate tumours and preclinical studies point to possible candidates. Finally, the increased resolution of next generation sequencing (NGS) is likely to enable yet more precise molecular predictions of radiotherapy response and fraction sensitivity.
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Affiliation(s)
- Anna Wilkins
- Division of Clinical Studies, The Institute of Cancer Research, London SM2 5NG, UK
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London SM2 5NG, UK
| | - David Dearnaley
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London SM2 5NG, UK
| | - Navita Somaiah
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London SM2 5NG, UK
- Division of Cancer Biology, The Institute of Cancer Research, London SM2 5NG, UK
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18
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Zhou N, Wang R, Zhang Y, Lei Z, Zhang X, Hu R, Li H, Mao Y, Wang X, Irwin DM, Niu G, Tan H. Staurosporine Induced Apoptosis May Activate Cancer Stem-Like Cells (CD44(+)/CD24(-)) in MCF-7 by Upregulating Mucin1 and EpCAM. J Cancer 2015; 6:1049-57. [PMID: 26366219 PMCID: PMC4565855 DOI: 10.7150/jca.12501] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Accepted: 07/27/2015] [Indexed: 12/31/2022] Open
Abstract
Malignant tumors recur after chemotherapy. A small population of cancer stem-like cells within tumors is now generally considered the prime source of the recurrence. To better understand how cancer stem-like cells induce relapse after fractionated chemotherapy, we examined changes in the CD44(+)/CD24(-) cancer stem-like cells population and behavior using the breast cancer cell line MCF-7. Our results show that apart from an increase in the CD44(+)/CD24(-) population, proliferation and clone formation, but not migration, were enhanced after recovery from apoptosis induced by two pulses of staurosporine (STS). The distribution of cells in the cell cycle differed between acutely induced apoptosis and fractionated chemotherapy. Sorted CD44(+)/CD24(-) stem-like cells from MCF-7 cells recovered from STS treatment possessed greater proliferation abilities. We also observed that mucin1 (MUC1) and Epithelial cell adhesion molecule (EpCAM) were up-regulated in abundance coincidently with proliferation and clone formation enhancement. Our findings suggest that fractionated chemotherapy induced apoptosis could stimulate cancer stem-like cell to behave with a stronger malignant property than cancer cells themselves and MUC1 and EpCAM are important factors involving in this process. By demonstrating changes in cancer stem cell during chemotherapy and identifying the crucial factors, we potentially can target them, to eradicate tumors and overcome cancer relapse.
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Affiliation(s)
- Na Zhou
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - Rong Wang
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - Yizhuang Zhang
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - Zhen Lei
- 2. Beijing N&N Genetech Company, Beijing, 100082, China
| | - Xuehui Zhang
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - Ruobi Hu
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - Hui Li
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - Yiqing Mao
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - Xi Wang
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
| | - David M Irwin
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China; ; 3. Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Gang Niu
- 2. Beijing N&N Genetech Company, Beijing, 100082, China
| | - Huanran Tan
- 1. Department of Pharmacology, Peking University, Health Science Center, Beijing 100191, China
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19
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Berlin A, Lalonde E, Sykes J, Zafarana G, Chu KC, Ramnarine VR, Ishkanian A, Sendorek DHS, Pasic I, Lam WL, Jurisica I, van der Kwast T, Milosevic M, Boutros PC, Bristow RG. NBN gain is predictive for adverse outcome following image-guided radiotherapy for localized prostate cancer. Oncotarget 2015; 5:11081-90. [PMID: 25415046 PMCID: PMC4294365 DOI: 10.18632/oncotarget.2404] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 08/26/2014] [Indexed: 12/31/2022] Open
Abstract
Despite the use of clinical prognostic factors (PSA, T-category and Gleason score), 20-60% of localized prostate cancers (PCa) fail primary local treatment. Herein, we determined the prognostic importance of main sensors of the DNA damage response (DDR): MRE11A, RAD50, NBN, ATM, ATR and PRKDC. We studied copy number alterations in DDR genes in localized PCa treated with image-guided radiotherapy (IGRT; n=139) versus radical prostatectomy (RadP; n=154). In both cohorts, NBN gains were the most frequent genomic alteration (14.4 and 11% of cases, respectively), and were associated with overall tumour genomic instability (p<0.0001). NBN gains were the only significant predictor of 5yrs biochemical relapse-free rate (bRFR) following IGRT (46% versus 77%; p=0.00067). On multivariate analysis, NBN gain remained a significant independent predictor of bRFR after adjusting for known clinical prognostic variables (HR=3.28, 95% CI 1.56–6.89, Wald p-value=0.0017). No DDR-sensing gene was prognostic in the RadP cohort. In vitro studies correlated NBN gene overexpression with PCa cells radioresistance. In conclusion, NBN gain predicts for decreased bRFR in IGRT, but not in RadP patients. If validated independently, Nibrin gains may be the first PCa predictive biomarker to facilitate local treatment decisions using precision medicine approaches with surgery or radiotherapy.
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Affiliation(s)
- Alejandro Berlin
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada. Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Emilie Lalonde
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada. Informatics and Bio-Computing, Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Jenna Sykes
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada
| | - Gaetano Zafarana
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada
| | - Kenneth C Chu
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada. Informatics and Bio-Computing, Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Varune R Ramnarine
- Vancouver Prostate Centre & Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada
| | - Adrian Ishkanian
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada. Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Dorota H S Sendorek
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada
| | - Ivan Pasic
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada
| | - Wan L Lam
- Vancouver Prostate Centre & Department of Urologic Sciences, University of British Columbia, Vancouver, BC, Canada. Department of Integrative Oncology, British Columbia Cancer Research Centre, Vancouver, BC, Canada
| | - Igor Jurisica
- The Techna Institute, University Health Network, Toronto, ON, Canada
| | - Theo van der Kwast
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada
| | - Michael Milosevic
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada. Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Paul C Boutros
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada. Informatics and Bio-Computing, Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Robert G Bristow
- Departments of Radiation Oncology, Medical Biophysics, Medical Oncology, Laboratory Medicine and Pathology, Pharmacology & Toxicology and Biostatistics, Computer Science, University of Toronto, Toronto, ON, Canada. Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
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20
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Boutros PC, Fraser M, Harding NJ, de Borja R, Trudel D, Lalonde E, Meng A, Hennings-Yeomans PH, McPherson A, Sabelnykova VY, Zia A, Fox NS, Livingstone J, Shiah YJ, Wang J, Beck TA, Have CL, Chong T, Sam M, Johns J, Timms L, Buchner N, Wong A, Watson JD, Simmons TT, P'ng C, Zafarana G, Nguyen F, Luo X, Chu KC, Prokopec SD, Sykes J, Dal Pra A, Berlin A, Brown A, Chan-Seng-Yue MA, Yousif F, Denroche RE, Chong LC, Chen GM, Jung E, Fung C, Starmans MHW, Chen H, Govind SK, Hawley J, D'Costa A, Pintilie M, Waggott D, Hach F, Lambin P, Muthuswamy LB, Cooper C, Eeles R, Neal D, Tetu B, Sahinalp C, Stein LD, Fleshner N, Shah SP, Collins CC, Hudson TJ, McPherson JD, van der Kwast T, Bristow RG. Spatial genomic heterogeneity within localized, multifocal prostate cancer. Nat Genet 2015; 47:736-45. [PMID: 26005866 DOI: 10.1038/ng.3315] [Citation(s) in RCA: 349] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 05/01/2015] [Indexed: 12/12/2022]
Abstract
Herein we provide a detailed molecular analysis of the spatial heterogeneity of clinically localized, multifocal prostate cancer to delineate new oncogenes or tumor suppressors. We initially determined the copy number aberration (CNA) profiles of 74 patients with index tumors of Gleason score 7. Of these, 5 patients were subjected to whole-genome sequencing using DNA quantities achievable in diagnostic biopsies, with detailed spatial sampling of 23 distinct tumor regions to assess intraprostatic heterogeneity in focal genomics. Multifocal tumors are highly heterogeneous for single-nucleotide variants (SNVs), CNAs and genomic rearrangements. We identified and validated a new recurrent amplification of MYCL, which is associated with TP53 deletion and unique profiles of DNA damage and transcriptional dysregulation. Moreover, we demonstrate divergent tumor evolution in multifocal cancer and, in some cases, tumors of independent clonal origin. These data represent the first systematic relation of intraprostatic genomic heterogeneity to predicted clinical outcome and inform the development of novel biomarkers that reflect individual prognosis.
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Affiliation(s)
- Paul C Boutros
- 1] Ontario Institute for Cancer Research, Toronto, Ontario, Canada. [2] Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada. [3] Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Michael Fraser
- Ontario Cancer Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | | | | | - Dominique Trudel
- Department of Pathology and Laboratory Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Emilie Lalonde
- 1] Ontario Institute for Cancer Research, Toronto, Ontario, Canada. [2] Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Alice Meng
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | | | - Andrew McPherson
- School of Computing Science, Simon Fraser University, Burnaby, British Columbia, Canada
| | | | - Amin Zia
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Natalie S Fox
- 1] Ontario Institute for Cancer Research, Toronto, Ontario, Canada. [2] Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | | | - Yu-Jia Shiah
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Jianxin Wang
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Timothy A Beck
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Cherry L Have
- Department of Pathology and Laboratory Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Taryne Chong
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Michelle Sam
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Jeremy Johns
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Lee Timms
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | | | - Ada Wong
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - John D Watson
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Trent T Simmons
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Christine P'ng
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Gaetano Zafarana
- Ontario Cancer Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Francis Nguyen
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Xuemei Luo
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Kenneth C Chu
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | | | - Jenna Sykes
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Alan Dal Pra
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Alejandro Berlin
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Andrew Brown
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | | | - Fouad Yousif
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | | | - Lauren C Chong
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Gregory M Chen
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Esther Jung
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Clement Fung
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | | | - Hanbo Chen
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | | | - James Hawley
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Alister D'Costa
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Melania Pintilie
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Daryl Waggott
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Faraz Hach
- School of Computing Science, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Philippe Lambin
- Department of Radiotherapy, Maastricht University, Maastricht, the Netherlands
| | | | - Colin Cooper
- 1] Division of Genetics and Epidemiology, The Institute of Cancer Research, Sutton, UK. [2] Department of Biological Sciences, University of East Anglia, Norwich, UK. [3] School of Medicine, University of East Anglia, Norwich, UK
| | - Rosalind Eeles
- 1] Division of Genetics and Epidemiology, The Institute of Cancer Research, Sutton, UK. [2] Royal Marsden National Health Service (NHS) Foundation Trust, London and Sutton, UK
| | - David Neal
- 1] Urological Research Laboratory, Cancer Research UK Cambridge Research Institute, Cambridge, UK. [2] Department of Surgical Oncology, University of Cambridge, Addenbrooke's Hospital, Cambridge, UK
| | - Bernard Tetu
- Department of Pathology, Laval University, Quebec City, Quebec, Canada
| | - Cenk Sahinalp
- School of Computing Science, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Lincoln D Stein
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | - Neil Fleshner
- Division of Urology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Sohrab P Shah
- 1] Department of Pathology, University of British Columbia, Vancouver, British Columbia, Canada. [2] Department of Computer Science, University of British Columbia, Vancouver, British Columbia, Canada. [3] British Columbia Cancer Agency Research Centre, Vancouver, British Columbia, Canada
| | - Colin C Collins
- 1] Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada. [2] Laboratory for Advanced Genome Analysis, Vancouver Prostate Centre, Vancouver, British Columbia, Canada
| | - Thomas J Hudson
- Ontario Institute for Cancer Research, Toronto, Ontario, Canada
| | | | - Theodorus van der Kwast
- Department of Pathology and Laboratory Medicine, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada
| | - Robert G Bristow
- 1] Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada. [2] Ontario Cancer Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada. [3] Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
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Exposure of tumor-associated macrophages to apoptotic MCF-7 cells promotes breast cancer growth and metastasis. Int J Mol Sci 2015; 16:11966-82. [PMID: 26016502 PMCID: PMC4490423 DOI: 10.3390/ijms160611966] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 12/26/2022] Open
Abstract
Tumor-associated macrophages (TAMs) have been found to be associated with the progression and metastasis of breast cancer. To clarify the mechanisms underlying the crosstalk between TAMs and cancer stem cells (CSCs) in breast cancer recurrence and metastasis, we used a co-culture model of macrophages and apoptotic human breast cancer cell line MCF-7 cells to investigate the effects of TAMs on MCF-7 in vitro and in vivo. Macrophages co-cultured with apoptotic MCF-7 had increased tumor growth and metastatic ability in a nude mouse transplantation assay. The macrophages exposed to apoptotic cells also induce an increase in the proportion of CD44+/CD24− cancer stem-like cells, as well as their proliferative ability accompanied with an increase in mucin1 (MUC1) expression. During this process, macrophages secreted increased amounts of interleukin 6 (IL-6) leading to increased phosphorylation of signal transducers and activators of transcription 3 (STAT3), which likely explains the increased transcription of STAT3 target genes such as TGF-β1 and HIF-1α. Our results indicate that when cancer cells endure chemotherapy induced apoptosis, macrophages in their microenvironment can then activate cancer stem cells to promote cancer growth and metastasis by secreting IL-6, which activates STAT3 phosphorylation to regulate the transcription of its downstream target genes.
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Locke JA, Dal Pra A, Supiot S, Warde P, Bristow RG. Synergistic action of image-guided radiotherapy and androgen deprivation therapy. Nat Rev Urol 2015; 12:193-204. [PMID: 25800395 DOI: 10.1038/nrurol.2015.50] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The combined use of androgen deprivation therapy (ADT) and image-guided radiotherapy (IGRT) can improve overall survival in aggressive, localized prostate cancer. However, owing to the adverse effects of prolonged ADT, it is imperative to identify the patients who would benefit from this combined-modality therapy relative to the use of IGRT alone. Opportunities exist for more personalized approaches in treating aggressive, locally advanced prostate cancer. Biomarkers--such as disseminated tumour cells, circulating tumour cells, genomic signatures and molecular imaging techniques--could identify the patients who are at greatest risk for systemic metastases and who would benefit from the addition of systemic ADT. By contrast, when biomarkers of systemic disease are not present, treatment could proceed using local IGRT alone. The choice of drug, treatment duration and timing of ADT relative to IGRT could be predicated on these personalized approaches to prostate cancer medicine. These novel treatment intensification and reduction strategies could result in improved prostate-cancer-specific survival and overall survival, without incurring the added expense of metabolic syndrome and other adverse effects of ADT in all patients.
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Affiliation(s)
- Jennifer A Locke
- Department of Urologic Sciences, University of British Columbia, Gordon &Leslie Diamond Health Care Centre, Level 6, 2775 Laurel Street, Vancouver, BC V5Z 1M9, Canada
| | - Alan Dal Pra
- Department of Radiation Oncology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 4, CH-3010 Bern, Switzerland
| | - Stéphane Supiot
- Department of Radiation Oncology, Institut de Cancérologie de l'Ouest, Nantes-St-Herblain, 8 quai Moncousu, BP 70721, 44000 Nantes, France
| | - Padraig Warde
- Radiation Medicine Program, Princess Margaret Cancer Centre, 610 University Avenue, Toronto, ON M5G 2M9, Canada
| | - Robert G Bristow
- Radiation Medicine Program, Princess Margaret Cancer Centre, 610 University Avenue, Toronto, ON M5G 2M9, Canada
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23
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Shtivelman E, Beer TM, Evans CP. Molecular pathways and targets in prostate cancer. Oncotarget 2014; 5:7217-59. [PMID: 25277175 PMCID: PMC4202120 DOI: 10.18632/oncotarget.2406] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Accepted: 08/28/2014] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer co-opts a unique set of cellular pathways in its initiation and progression. The heterogeneity of prostate cancers is evident at earlier stages, and has led to rigorous efforts to stratify the localized prostate cancers, so that progression to advanced stages could be predicted based upon salient features of the early disease. The deregulated androgen receptor signaling is undeniably most important in the progression of the majority of prostate tumors. It is perhaps because of the primacy of the androgen receptor governed transcriptional program in prostate epithelium cells that once this program is corrupted, the consequences of the ensuing changes in activity are pleotropic and could contribute to malignancy in multiple ways. Following localized surgical and radiation therapies, 20-40% of patients will relapse and progress, and will be treated with androgen deprivation therapies. The successful development of the new agents that inhibit androgen signaling has changed the progression free survival in hormone resistant disease, but this has not changed the almost ubiquitous development of truly resistant phenotypes in advanced prostate cancer. This review summarizes the current understanding of the molecular pathways involved in localized and metastatic prostate cancer, with an emphasis on the clinical implications of the new knowledge.
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Affiliation(s)
| | - Tomasz M. Beer
- Oregon Health & Science University, Knight Cancer Institute, Portland, OR
| | - Christopher P. Evans
- Department of Urology and Comprehensive Cancer Center, University of California Davis, Davis, CA
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Gnanapragasam VJ. Molecular markers to guide primary radical treatment selection in localized prostate cancer. Expert Rev Mol Diagn 2014; 14:871-81. [DOI: 10.1586/14737159.2014.936851] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Fraser M, Berlin A, Bristow RG, van der Kwast T. Genomic, pathological, and clinical heterogeneity as drivers of personalized medicine in prostate cancer. Urol Oncol 2014; 33:85-94. [PMID: 24768356 DOI: 10.1016/j.urolonc.2013.10.020] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 10/29/2013] [Indexed: 12/23/2022]
Abstract
Prostate cancer (CaP) is the most commonly diagnosed malignancy in men in the Western world. In North America, more than 275,000 men are diagnosed annually, whereby approximately 1 in 6 men will be diagnosed with CaP in their lifetime, and 1 in 34 men will die from castration-resistant metastatic disease. Unfortunately, current clinical prognostic factors explain only a proportion of the observed variation in clinical outcome from patient to patient. Furthermore, overtreatment of indolent and low-risk cancers leads to inappropriate morbidity following radiotherapy or surgery. As such, better predictors of individualized prognosis and treatment response are urgently needed to triage patients to customized and intensified CaP treatment. Recent developments in next-generation sequencing have made it possible to identify prognostic and predictive signatures based on genomic profiles. We discuss the genetic basis of CaP progression from localized to systemic disease (e.g., point mutations, copy-number alterations, and structural variants) in relation with unique features of CaP biology, including intraprostatic and interprostatic heterogeneity, multifocality and multiclonality, TMPRSS2:ERG, and other ETS-family gene fusions. Finally, we focus on the use of genomic markers as prognostic factors for local failure and for systemic disease, as novel risk-stratification tools, in triaging patients to existing treatment options, and ultimately the potential of genomics for the identification of molecular targets for therapy of CaP.
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Affiliation(s)
- Michael Fraser
- Ontario Cancer Institute and Princess Margaret Cancer Center (University Health Network), Toronto, Ontario, Canada
| | - Alejandro Berlin
- Ontario Cancer Institute and Princess Margaret Cancer Center (University Health Network), Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Robert G Bristow
- Ontario Cancer Institute and Princess Margaret Cancer Center (University Health Network), Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
| | - Theodorus van der Kwast
- Department of Pathology and Laboratory Medicine, Toronto General Hospital (University Health Network), Toronto, Ontario, Canada.
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26
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Miller JK, Buchner N, Timms L, Tam S, Luo X, Brown AMK, Pasternack D, Bristow RG, Fraser M, Boutros PC, McPherson JD. Use of Sequenom sample ID Plus® SNP genotyping in identification of FFPE tumor samples. PLoS One 2014; 9:e88163. [PMID: 24551080 PMCID: PMC3923782 DOI: 10.1371/journal.pone.0088163] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 01/03/2014] [Indexed: 11/23/2022] Open
Abstract
Short tandem repeat (STR) analysis, such as the AmpFlSTR® Identifiler® Plus kit, is a standard, PCR-based human genotyping method used in the field of forensics. Misidentification of cell line and tissue DNA can be costly if not detected early; therefore it is necessary to have quality control measures such as STR profiling in place. A major issue in large-scale research studies involving archival formalin-fixed paraffin embedded (FFPE) tissues is that varying levels of DNA degradation can result in failure to correctly identify samples using STR genotyping. PCR amplification of STRs of several hundred base pairs is not always possible when DNA is degraded. The Sample ID Plus® panel from Sequenom allows for human DNA identification and authentication using SNP genotyping. In comparison to lengthy STR amplicons, this multiplexing PCR assay requires amplification of only 76-139 base pairs, and utilizes 47 SNPs to discriminate between individual samples. In this study, we evaluated both STR and SNP genotyping methods of sample identification, with a focus on paired FFPE tumor/normal DNA samples intended for next-generation sequencing (NGS). The ability to successfully validate the identity of FFPE samples can enable cost savings by reducing rework.
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Affiliation(s)
- Jessica K. Miller
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
| | - Nicholas Buchner
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
| | - Lee Timms
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
| | - Shirley Tam
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
| | - Xuemei Luo
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
| | - Andrew M. K. Brown
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
| | - Danielle Pasternack
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
| | - Robert G. Bristow
- Ontario Cancer Institute/Princess Margaret Hospital, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Michael Fraser
- Ontario Cancer Institute/Princess Margaret Hospital, Toronto, Canada
| | - Paul C. Boutros
- Informatics & Biocomputing Platform, Ontario Institute for Cancer Research, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Department of Pharmacology & Toxicology, University of Toronto, Toronto, Canada
| | - John D. McPherson
- Department of Genome Technologies, Ontario Institute for Cancer Research, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
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Bristow RG, Berlin A, Dal Pra A. An arranged marriage for precision medicine: hypoxia and genomic assays in localized prostate cancer radiotherapy. Br J Radiol 2014; 87:20130753. [PMID: 24588670 DOI: 10.1259/bjr.20130753] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Prostate cancer (CaP) is the most commonly diagnosed malignancy in males in the Western world with one in six males diagnosed in their lifetime. Current clinical prognostication groupings use pathologic Gleason score, pre-treatment prostatic-specific antigen and Union for International Cancer Control-TNM staging to place patients with localized CaP into low-, intermediate- and high-risk categories. These categories represent an increasing risk of biochemical failure and CaP-specific mortality rates, they also reflect the need for increasing treatment intensity and justification for increased side effects. In this article, we point out that 30-50% of patients will still fail image-guided radiotherapy or surgery despite the judicious use of clinical risk categories owing to interpatient heterogeneity in treatment response. To improve treatment individualization, better predictors of prognosis and radiotherapy treatment response are needed to triage patients to bespoke and intensified CaP treatment protocols. These should include the use of pre-treatment genomic tests based on DNA or RNA indices and/or assays that reflect cancer metabolism, such as hypoxia assays, to define patient-specific CaP progression and aggression. More importantly, it is argued that these novel prognostic assays could be even more useful if combined together to drive forward precision cancer medicine for localized CaP.
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Affiliation(s)
- R G Bristow
- Princess Margaret Cancer Center (University Health Network), Toronto, ON, Canada
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28
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In Regard to Freedland et al. Int J Radiat Oncol Biol Phys 2014; 88:237-40. [DOI: 10.1016/j.ijrobp.2013.10.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Accepted: 10/03/2013] [Indexed: 01/10/2023]
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Wallace T, Torre T, Grob M, Yu J, Avital I, Brücher BLDM, Stojadinovic A, Man Y. Current approaches, challenges and future directions for monitoring treatment response in prostate cancer. J Cancer 2014; 5:3-24. [PMID: 24396494 PMCID: PMC3881217 DOI: 10.7150/jca.7709] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Accepted: 11/01/2013] [Indexed: 01/23/2023] Open
Abstract
Prostate cancer is the most commonly diagnosed non-cutaneous neoplasm in men in the United States and the second leading cause of cancer mortality. One in 7 men will be diagnosed with prostate cancer during their lifetime. As a result, monitoring treatment response is of vital importance. The cornerstone of current approaches in monitoring treatment response remains the prostate-specific antigen (PSA). However, with the limitations of PSA come challenges in our ability to monitor treatment success. Defining PSA response is different depending on the individual treatment rendered potentially making it difficult for those not trained in urologic oncology to understand. Furthermore, standard treatment response criteria do not apply to prostate cancer further complicating the issue of treatment response. Historically, prostate cancer has been difficult to image and no single modality has been consistently relied upon to measure treatment response. However, with newer imaging modalities and advances in our understanding and utilization of specific biomarkers, the future for monitoring treatment response in prostate cancer looks bright.
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Affiliation(s)
- T.J. Wallace
- 1. Bon Secours Cancer Institute, Bon Secours Health Care System, Richmond VA, USA
- 2. Division of Radiation Oncology, Bon Secours Health Care System, Richmond VA, USA
- 3. Virginia Urology, Richmond VA, USA
| | - T. Torre
- 1. Bon Secours Cancer Institute, Bon Secours Health Care System, Richmond VA, USA
- 2. Division of Radiation Oncology, Bon Secours Health Care System, Richmond VA, USA
- 3. Virginia Urology, Richmond VA, USA
| | - M. Grob
- 4. Department of Urology, Virginia Commonwealth University Health System, Richmond VA, USA
| | - J. Yu
- 5. Department of Radiology, Virginia Commonwealth University Health System, Richmond VA, USA
| | - I. Avital
- 1. Bon Secours Cancer Institute, Bon Secours Health Care System, Richmond VA, USA
- 6. Division of Surgical Oncology, Bon Secours Health Care System, Richmond VA, USA
| | - BLDM Brücher
- 1. Bon Secours Cancer Institute, Bon Secours Health Care System, Richmond VA, USA
- 6. Division of Surgical Oncology, Bon Secours Health Care System, Richmond VA, USA
- 7. INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Adademy
| | - A. Stojadinovic
- 1. Bon Secours Cancer Institute, Bon Secours Health Care System, Richmond VA, USA
- 6. Division of Surgical Oncology, Bon Secours Health Care System, Richmond VA, USA
- 7. INCORE, International Consortium of Research Excellence of the Theodor-Billroth-Adademy
| | - Y.G. Man
- 1. Bon Secours Cancer Institute, Bon Secours Health Care System, Richmond VA, USA
- 6. Division of Surgical Oncology, Bon Secours Health Care System, Richmond VA, USA
- 8. South Hospital of Nanjing, Nanjing, China
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Zannella VE, Dal Pra A, Muaddi H, McKee TD, Stapleton S, Sykes J, Glicksman R, Chaib S, Zamiara P, Milosevic M, Wouters BG, Bristow RG, Koritzinsky M. Reprogramming metabolism with metformin improves tumor oxygenation and radiotherapy response. Clin Cancer Res 2013; 19:6741-50. [PMID: 24141625 DOI: 10.1158/1078-0432.ccr-13-1787] [Citation(s) in RCA: 238] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Tumor hypoxia is a negative prognostic factor in multiple cancers, due in part to its role in causing resistance to radiotherapy. Hypoxia arises in tumor regions distal to blood vessels as oxygen is consumed by more proximal tumor cells. Reducing the rate of oxygen consumption is therefore a potential strategy to reduce tumor hypoxia. We hypothesized that the anti-diabetic drug metformin, which reduces oxygen consumption through inhibition of mitochondrial complex I, would improve radiation response by increasing tumor oxygenation. EXPERIMENTAL DESIGN Tumor hypoxia was measured in xenografts before and after metformin treatment using 2-nitroimidazole hypoxia markers quantified by immunohistochemistry (IHC), flow cytometry, and positron emission tomography (PET) imaging. Radiation response was determined by tumor growth delay and clonogenic survival in xenografts with and without administration of metformin. The impact of metformin use on outcome was assessed in 504 patients with localized prostate cancer treated with curative-intent, image-guided radiotherapy (IGRT) from 1996 to 2012. Three-year biochemical relapse-free rates were assessed using the Kaplan-Meier method. RESULTS Metformin treatment significantly improved tumor oxygenation in two xenograft models as measured by IHC, flow cytometry, and PET imaging. Metformin also led to improved radiotherapy responses when mice were administered metformin immediately before irradiation. Clinically, metformin use was associated with an independent and significant decrease in early biochemical relapse rates (P = 0.0106). CONCLUSION Our data demonstrate that metformin can improve tumor oxygenation and response to radiotherapy. Our study suggests that metformin may represent an effective and inexpensive means to improve radiotherapy outcome with an optimal therapeutic ratio.
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Affiliation(s)
- Vanessa E Zannella
- Authors' Affiliations: Princess Margaret Cancer Centre and Radiation Medicine Program, University Health Network; Institute of Medical Science, Department of Radiation Oncology, Faculty of Medicine, Department of Medical Biophysics, University of Toronto; Selective Therapies Program, Ontario Institute for Cancer Research, Toronto, Ontario, Canada; and Department of Radiation Oncology (Maastro Lab), GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
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Abstract
PURPOSE OF REVIEW To explore several serum and genetic-based biomarkers that may prove useful in following men being managed with active surveillance for localized prostate cancer by predicting those that either have the potential to develop, or already harbor occult high grade disease. RECENT FINDINGS There is increasing evidence that serum biomarkers human Kallikrein 2, early prostate cancer antigen, urokinase-type plasminogen activator/urokinase-type plasminogen activator receptor, transforming growth factor-β1 and interleukin-6/interleukin-6 receptor and genetic biomarkers BRCA1 and BRCA2, Phosphatase and tensin homolog, cellular myelocytomatosis oncogene and NKX3.1 may predict for aggressive high grade disease and are identifiable early in prostate carcinogenesis. SUMMARY One of the barriers of widespread adoption of active surveillance for low risk, localized prostate cancer is the concern that some patients may harbor occult high-risk disease at diagnosis, or develop more aggressive/noncurable disease not detected by our current well established prognostic factors. This review examines several serum and genetic-based biomarkers that appear to be of value in localized prostate cancer, unlike the vast majority of more established prostate cancer biomarkers that have been validated in far more advanced disease. Although the biomarkers discussed show exciting promise, their clinical utility is unknown, and their role in the active surveillance scenario needs further study.
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Fonseca-Alves CE, Rodrigues MMP, de Moura VMBD, Rogatto SR, Laufer-Amorim R. Alterations of C-MYC, NKX3.1, and E-cadherin expression in canine prostate carcinogenesis. Microsc Res Tech 2013; 76:1250-6. [PMID: 24030851 DOI: 10.1002/jemt.22292] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 08/08/2013] [Accepted: 08/27/2013] [Indexed: 11/06/2022]
Abstract
The dog (canis lupus familiaris) is the only other species besides humans that develop spontaneous prostatic carcinomas (PCa) at a high frequency. The canine model is primarily utilized for the study of the PCa molecular mechanisms and provides a natural animal model for the study of potential therapies. In humans, the PCa frequently exhibits mutations in the C-MYC and a reduced expression of the E-cadherin and NKX3.1 proteins. This study's objective was to evaluate the NKX3.1, C-MYC, and E-cadherin expression in the canine normal prostate, benign prostatic hyperplasia (BPH), proliferative inflammatory atrophy (PIA) and PCa and to verify differences in expression and subcellular localization of these proteins in the prostatic carcinogenesis. A tissue microarray (TMA) slide was constructed, and immunohistochemistry with antibodies raised against C-MYC, NKX3.1, E-cadherin and p63 was performed using the peroxidase and DAB methods. The C-MYC protein expression was elevated in the cytoplasm and nuclei of the canine PCa and PIA compared with the normal prostate (P = 0.004. The NKX3.1 protein expression was reduced in 94.75% of the PCa and 100% of the PIA compared with the normal prostate (P = 0.0022). In fact, the expression of E-cadherin trended towards a decrease in carcinomas when compared to normal prostate and PIA. By immunohistochemistry, more p63-positive basal cells were observed in the PCa and PIA when compared with the normal prostate (P = 0.0002). This study has demonstrated that the carcinogenesis of canine prostatic tissue may be related to basal cell proliferation, the gain of C-MYC function and the loss of NKX3.1 protein expression.
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Affiliation(s)
- Carlos E Fonseca-Alves
- Department of Veterinary Clinic, School of Veterinary Medicine and Animal Science, Botucatu, Sao Paulo, Brazil
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Dal Pra A, Lalonde E, Sykes J, Warde F, Ishkanian A, Meng A, Maloff C, Srigley J, Joshua AM, Petrovics G, van der Kwast T, Evans A, Milosevic M, Saad F, Collins C, Squire J, Lam W, Bismar TA, Boutros PC, Bristow RG. TMPRSS2-ERG Status Is Not Prognostic Following Prostate Cancer Radiotherapy: Implications for Fusion Status and DSB Repair. Clin Cancer Res 2013; 19:5202-9. [DOI: 10.1158/1078-0432.ccr-13-1049] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sridharan S, Dal Pra A, Catton C, Bristow R, Warde P. Locally Advanced Prostate Cancer: Current Controversies and Optimisation Opportunities. Clin Oncol (R Coll Radiol) 2013; 25:499-505. [DOI: 10.1016/j.clon.2013.04.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 03/18/2013] [Accepted: 04/15/2013] [Indexed: 01/08/2023]
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Trudel D, Zafarana G, Sykes J, Have CL, Bristow RG, van der Kwast T. 4FISH-IF, a four-color dual-gene FISH combined with p63 immunofluorescence to evaluate NKX3.1 and MYC status in prostate cancer. J Histochem Cytochem 2013; 61:500-9. [PMID: 23640976 DOI: 10.1369/0022155413490946] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
NKX3.1 allelic loss and MYC amplification are common events during prostate cancer progression and have been recognized as potential prognostic factors in prostate cancer after radical prostatectomy or precision radiotherapy. We have developed a 4FISH-IF assay (a dual-gene fluorescence in situ hybridization combined with immunofluorescence) to measure both NKX3.1 and MYC status on the same slide. The 4FISH-IF assay contains four probes complementary to chromosome 8 centromere, 8p telomere, 8p21, and 8q24, as well as an antibody targeting the basal cell marker p63 visualized by immunofluorescence. The major advantages of the 4FISH-IF include the distinction between benign and malignant glands directly on the 4FISH-IF slide and the control of truncation artifact. Importantly, this specialized and innovative combined multiprobe and immunofluorescence technique can be performed on diagnostic biopsy specimens, increasing its clinical relevance. Moreover, the assay can be easily performed in a standard clinical molecular pathology laboratory. Globally, the use of 4FISH-IF decreases analytic time, increases confidence in obtained results, and maintains the tissue morphology of the diagnostic specimen.
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Affiliation(s)
- Dominique Trudel
- Department of Laboratory Medicine and Pathology/Applied Molecular Oncology, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada.
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Liauw SL, Connell PP, Weichselbaum RR. New paradigms and future challenges in radiation oncology: an update of biological targets and technology. Sci Transl Med 2013; 5:173sr2. [PMID: 23427246 PMCID: PMC3769139 DOI: 10.1126/scitranslmed.3005148] [Citation(s) in RCA: 170] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Radiation oncology exploits the biological interaction of radiation within tissue to promote tumor death while minimizing damage to surrounding normal tissue. The clinical delivery of radiation relies on principles of radiation physics that define how radiation energy is deposited in the body, as well as technology that facilitates accurate tumor targeting. This review will summarize the current landscape of recent biological and technological advances in radiation oncology, describe the challenges that exist, and offer potential avenues for improvement.
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Affiliation(s)
- Stanley L. Liauw
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL
| | - Philip P. Connell
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL
| | - Ralph R. Weichselbaum
- Department of Radiation and Cellular Oncology, University of Chicago, Chicago, IL
- Ludwig Center for Metastasis Research
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