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Aparicio L, Crowley L, Christin JR, Laplaca CJ, Hibshoosh H, Rabadan R, Shen MM. Meta-analyses of mouse and human prostate single-cell transcriptomes reveal widespread epithelial plasticity in tissue regression, regeneration, and cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.30.578066. [PMID: 38352515 PMCID: PMC10862785 DOI: 10.1101/2024.01.30.578066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Recent advances in single-cell RNA-sequencing (scRNA-seq) technology have facilitated studies of cell states and plasticity in tissue maintenance and cancer, including in the prostate. Here we present meta-analyses of multiple new and published scRNA-seq datasets to establish reference cell type classifications for the normal mouse and human prostate. Our analyses demonstrate transcriptomic similarities between epithelial cell states in the normal prostate, in the regressed prostate after androgen-deprivation, and in primary prostate tumors. During regression in the mouse prostate, all epithelial cells shift their expression profiles towards a proximal periurethral (PrU) state, demonstrating an androgen-dependent plasticity that is restored to normal during androgen restoration and regeneration. In the human prostate, we find progressive rewiring of transcriptional programs across epithelial cell types in benign prostate hyperplasia and treatment-naïve prostate cancer. Notably, we detect copy number variants predominantly within Luminal Acinar cells in prostate tumors, suggesting a bias in their cell type of origin, as well as a larger field of transcriptomic alterations in non-tumor cells. Finally, we observe that Luminal Acinar tumor cells in treatment-naïve prostate cancer display heterogeneous androgen receptor (AR) signaling activity, including a split between high-AR and low-AR profiles with similarity to PrU-like states. Taken together, our analyses of cellular heterogeneity and plasticity provide important translational insights into the origin and treatment response of prostate cancer.
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Affiliation(s)
- Luis Aparicio
- Program for Mathematical Genomics, Columbia University Irving Medical Center, New York, NY
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY
- Department of Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - Laura Crowley
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY
- Department of Medicine, Columbia University Irving Medical Center, New York, NY
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY
- Department of Urology, Columbia University Irving Medical Center, New York, NY
- Department of Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - John R. Christin
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY
- Department of Medicine, Columbia University Irving Medical Center, New York, NY
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY
- Department of Urology, Columbia University Irving Medical Center, New York, NY
- Department of Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - Caroline J. Laplaca
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY
- Department of Medicine, Columbia University Irving Medical Center, New York, NY
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY
- Department of Urology, Columbia University Irving Medical Center, New York, NY
- Department of Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - Hanina Hibshoosh
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY
- Department of Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - Raul Rabadan
- Program for Mathematical Genomics, Columbia University Irving Medical Center, New York, NY
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY
- Department of Biomedical Informatics, Columbia University Irving Medical Center, New York, NY
- Department of Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
| | - Michael M. Shen
- Department of Systems Biology, Columbia University Irving Medical Center, New York, NY
- Department of Medicine, Columbia University Irving Medical Center, New York, NY
- Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY
- Department of Urology, Columbia University Irving Medical Center, New York, NY
- Department of Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, NY
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Hernández A, Miranda DA, Pertuz S. An in silico study on the detectability of field cancerization through parenchymal analysis of digital mammograms. Med Phys 2023; 50:6379-6389. [PMID: 36994613 DOI: 10.1002/mp.16401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/07/2023] [Accepted: 03/15/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Parenchymal analysis has shown promising performance for the assessment of breast cancer risk through the characterization of the texture features of mammography images. However, the working principles behind this practice are yet not well understood. Field cancerization is a phenomenon associated with genetic and epigenetic alterations in large volumes of cells, putting them on a path of malignancy before the appearance of recognizable cancer signs. Evidence suggests that it can induce changes in the biochemical and optical properties of the tissue. PURPOSE The aim of this work was to study whether the extended genetic mutations and epigenetic changes due to field cancerization, and the impact they have on the biochemistry of breast tissues are detectable in the radiological patterns of mammography images. METHODS An in silico experiment was designed, which implied the development of a field cancerization model to modify the optical tissue properties of a cohort of 60 voxelized virtual breast phantoms. Mammography images from these phantoms were generated and compared with images obtained from their non-modified counterparts, that is, without field cancerization. We extracted 33 texture features from the breast area to quantitatively assess the impact of the field cancerization model. We analyzed the similarity and statistical equivalence of texture features with and without field cancerization using the t-test, Wilcoxon sign rank test and Kolmogorov-Smirnov test, and performed a discrimination test using multinomial logistic regression analysis with lasso regularization. RESULTS With modifications of the optical tissue properties on 3.9% of the breast volume, some texture features started to fail to show equivalence (p < 0.05). At 7.9% volume modification, a high percent of texture features showed statistically significant differences (p < 0.05) and non-equivalence. At this level, multinomial logistic regression analysis of texture features showed a statistically significant performance in the discrimination of mammograms from breasts with and without field cancerization (AUC = 0.89, 95% CI: 0.75-1.00). CONCLUSIONS These results support the idea that field cancerization is a feasible underlying working principle behind the distinctive performance of parenchymal analysis in breast cancer risk assessment.
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Affiliation(s)
- Angie Hernández
- Connectivity and Signal Processing group - CPS, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - David A Miranda
- Biological and Semiconductor Materials Science - CIMBIOS, Universidad Industrial de Santander, Bucaramanga, Colombia
| | - Said Pertuz
- Connectivity and Signal Processing group - CPS, Universidad Industrial de Santander, Bucaramanga, Colombia
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Deutscher K, Hillen T, Newby J. A computational model for the cancer field effect. Front Artif Intell 2023; 6:1060879. [PMID: 37469932 PMCID: PMC10352683 DOI: 10.3389/frai.2023.1060879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 06/05/2023] [Indexed: 07/21/2023] Open
Abstract
Introduction The Cancer Field Effect describes an area of pre-cancerous cells that results from continued exposure to carcinogens. Cells in the cancer field can easily develop into cancer. Removal of the main tumor mass might leave the cancer field behind, increasing risk of recurrence. Methods The model we propose for the cancer field effect is a hybrid cellular automaton (CA), which includes a multi-layer perceptron (MLP) to compute the effects of the carcinogens on the gene expression of the genes related to cancer development. We use carcinogen interactions that are typically associated with smoking and alcohol consumption and their effect on cancer fields of the tongue. Results Using simulations we support the understanding that tobacco smoking is a potent carcinogen, which can be reinforced by alcohol consumption. The effect of alcohol alone is significantly less than the effect of tobacco. We further observe that pairing tumor excision with field removal delays recurrence compared to tumor excision alone. We track cell lineages and find that, in most cases, a polyclonal field develops, where the number of distinct cell lineages decreases over time as some lineages become dominant over others. Finally, we find tumor masses rarely form via monoclonal origin.
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Buhigas C, Warren AY, Leung WK, Whitaker HC, Luxton HJ, Hawkins S, Kay J, Butler A, Xu Y, Woodcock DJ, Merson S, Frame FM, Sahli A, Abascal F, Martincorena I, Bova GS, Foster CS, Campbell P, Maitland NJ, Neal DE, Massie CE, Lynch AG, Eeles RA, Cooper CS, Wedge DC, Brewer DS. The architecture of clonal expansions in morphologically normal tissue from cancerous and non-cancerous prostates. Mol Cancer 2022; 21:183. [PMID: 36131292 PMCID: PMC9494848 DOI: 10.1186/s12943-022-01644-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 08/17/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Up to 80% of cases of prostate cancer present with multifocal independent tumour lesions leading to the concept of a field effect present in the normal prostate predisposing to cancer development. In the present study we applied Whole Genome DNA Sequencing (WGS) to a group of morphologically normal tissue (n = 51), including benign prostatic hyperplasia (BPH) and non-BPH samples, from men with and men without prostate cancer. We assess whether the observed genetic changes in morphologically normal tissue are linked to the development of cancer in the prostate. RESULTS Single nucleotide variants (P = 7.0 × 10-03, Wilcoxon rank sum test) and small insertions and deletions (indels, P = 8.7 × 10-06) were significantly higher in morphologically normal samples, including BPH, from men with prostate cancer compared to those without. The presence of subclonal expansions under selective pressure, supported by a high level of mutations, were significantly associated with samples from men with prostate cancer (P = 0.035, Fisher exact test). The clonal cell fraction of normal clones was always higher than the proportion of the prostate estimated as epithelial (P = 5.94 × 10-05, paired Wilcoxon signed rank test) which, along with analysis of primary fibroblasts prepared from BPH specimens, suggests a stromal origin. Constructed phylogenies revealed lineages associated with benign tissue that were completely distinct from adjacent tumour clones, but a common lineage between BPH and non-BPH morphologically normal tissues was often observed. Compared to tumours, normal samples have significantly less single nucleotide variants (P = 3.72 × 10-09, paired Wilcoxon signed rank test), have very few rearrangements and a complete lack of copy number alterations. CONCLUSIONS Cells within regions of morphologically normal tissue (both BPH and non-BPH) can expand under selective pressure by mechanisms that are distinct from those occurring in adjacent cancer, but that are allied to the presence of cancer. Expansions, which are probably stromal in origin, are characterised by lack of recurrent driver mutations, by almost complete absence of structural variants/copy number alterations, and mutational processes similar to malignant tissue. Our findings have implications for treatment (focal therapy) and early detection approaches.
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Affiliation(s)
- Claudia Buhigas
- Norwich Medical School, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK
| | - Anne Y Warren
- Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, CB2 0QQ, UK
| | - Wing-Kit Leung
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
| | - Hayley C Whitaker
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
- Molecular Diagnostics and Therapeutics Group, Division of Surgery and Interventional Sciences University College London, London, W1W 7TS, UK
| | - Hayley J Luxton
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
- Molecular Diagnostics and Therapeutics Group, Division of Surgery and Interventional Sciences University College London, London, W1W 7TS, UK
| | - Steve Hawkins
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
| | - Jonathan Kay
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
- Molecular Diagnostics and Therapeutics Group, Division of Surgery and Interventional Sciences University College London, London, W1W 7TS, UK
| | - Adam Butler
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1RQ, UK
| | - Yaobo Xu
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1RQ, UK
| | - Dan J Woodcock
- Oxford Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - Sue Merson
- The Institute of Cancer Research, London, SW7 3RP, UK
| | - Fiona M Frame
- Cancer Research Unit, Department of Biology, University of York, Heslington, YO10 5DD, North Yorkshire, UK
| | - Atef Sahli
- Oxford Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - Federico Abascal
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1RQ, UK
| | - Iñigo Martincorena
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1RQ, UK
| | - G Steven Bova
- Faculty of Medicine and Health Technology, Tampere University and Tays Cancer Center, 33014, Tampere, FI, Finland
| | | | - Peter Campbell
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1RQ, UK
| | - Norman J Maitland
- Cancer Research Unit, Department of Biology, University of York, Heslington, YO10 5DD, North Yorkshire, UK
| | - David E Neal
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
| | - Charlie E Massie
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
- Department of Oncology, University of Cambridge, Cambridge, CB2 0XZ, UK
| | - Andy G Lynch
- Cancer Research UK Cambridge Institute, Cambridge, CB2 0RE, UK
- School of Medicine/School of Mathematics and Statistics, University of St Andrews, St Andrews, KY16 9AJ, UK
| | - Rosalind A Eeles
- The Institute of Cancer Research, London, SW7 3RP, UK
- Royal Marsden NHS Foundation Trust, London and Sutton, SM2 5PT, UK
| | - Colin S Cooper
- Norwich Medical School, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK
- The Institute of Cancer Research, London, SW7 3RP, UK
| | - David C Wedge
- Oxford Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
- Manchester Cancer Research Centre, University of Manchester, Manchester, M20 4GJ, UK
| | - Daniel S Brewer
- Norwich Medical School, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK.
- Earlham Institute, Norwich, NR4 7UZ, UK.
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Expansion of Lymphocytes from Prostatic Adenocarcinoma and Adjacent Nonmalignant Tissue. Prostate Cancer 2022; 2022:6499344. [PMID: 35754788 PMCID: PMC9225894 DOI: 10.1155/2022/6499344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/23/2022] [Indexed: 11/24/2022] Open
Abstract
Background The evaluation of tumour-infiltrating lymphocytes (TILs) in solid malignancies has yielded insights into immune regulation within the tumour microenvironment and has also led to the development and optimisation of adoptive T cell therapies. Objectives This study examined the in vitro expansion of TILs from prostate adenocarcinoma, as a preliminary step to evaluate the potential of TILs for adoptive T cell therapy. Design, Setting, and Participants. Malignant and adjacent nonmalignant tissues were obtained from fifteen men undergoing radical prostatectomy. Interventions. There were no study interventions. Outcome Measurements and Statistical Analysis. Expanded cells were analysed by flow cytometry, and the data was assessed for associations between cell subpopulations and expansion rate. Results Tumour-infiltrating lymphocytes could be expanded to numbers that would be needed to generate a therapeutic infusion product from nine of 15 malignant specimens (60%). The CD4+ T cells predominated over CD8+ T cells (median 56.8% CD4+, 30.0% CD8+), and furthermore, faster TIL expansion was associated with a higher proportion of CD4+ T cells (median 69.8% in faster-growing cultures; 36.8% in slower-growing cultures). A higher proportion of CD3−CD56+ cells versus CD3+ cells was associated with slower TIL expansion in cultures from malignant specimens (median 13.3% in slower-growing cultures versus 2.05% in faster-growing cultures), but not from nonmalignant specimens. Conclusions The expansion of TILs for potential therapeutic use is feasible. Our findings also indicate that further examination of TILs from prostate adenocarcinomas may yield insights into mechanisms of regulation of T cells within the tumour microenvironment. Further research is required to evaluate their therapeutic potential.
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Czétány P, Gitta S, Balló A, Sulc A, Máté G, Szántó Á, Márk L. Application of Mass Spectrometry Imaging in Uro-Oncology: Discovering Potential Biomarkers. Life (Basel) 2022; 12:life12030366. [PMID: 35330118 PMCID: PMC8954359 DOI: 10.3390/life12030366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/25/2022] [Accepted: 02/25/2022] [Indexed: 11/17/2022] Open
Abstract
A growing need is emerging worldwide for new molecular markers which could enhance the accuracy of diagnostic and therapeutic methods for detecting urogenital cancers. Mass spectrometry imaging (MSI) is a very promising tool in this regard. In this review, we attempt to provide a subjective summary of the latest publications on potential biomarkers of renal, bladder, prostate, and testicular malignancies detected with MSI through the eyes of a clinical urologist.
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Affiliation(s)
- Péter Czétány
- National Human Reproduction Laboratory, 7624 Pécs, Hungary; (P.C.); (S.G.); (A.B.); (A.S.); (G.M.); (Á.S.)
- Urology Clinic, University of Pécs Clinical Centre, 7621 Pécs, Hungary
| | - Stefánia Gitta
- National Human Reproduction Laboratory, 7624 Pécs, Hungary; (P.C.); (S.G.); (A.B.); (A.S.); (G.M.); (Á.S.)
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, 7624 Pécs, Hungary
| | - András Balló
- National Human Reproduction Laboratory, 7624 Pécs, Hungary; (P.C.); (S.G.); (A.B.); (A.S.); (G.M.); (Á.S.)
- Urology Clinic, University of Pécs Clinical Centre, 7621 Pécs, Hungary
- Pannon Reproduction Institute, 8300 Tapolca, Hungary
| | - Alexandra Sulc
- National Human Reproduction Laboratory, 7624 Pécs, Hungary; (P.C.); (S.G.); (A.B.); (A.S.); (G.M.); (Á.S.)
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, 7624 Pécs, Hungary
| | - Gábor Máté
- National Human Reproduction Laboratory, 7624 Pécs, Hungary; (P.C.); (S.G.); (A.B.); (A.S.); (G.M.); (Á.S.)
- Pannon Reproduction Institute, 8300 Tapolca, Hungary
| | - Árpád Szántó
- National Human Reproduction Laboratory, 7624 Pécs, Hungary; (P.C.); (S.G.); (A.B.); (A.S.); (G.M.); (Á.S.)
- Urology Clinic, University of Pécs Clinical Centre, 7621 Pécs, Hungary
| | - László Márk
- National Human Reproduction Laboratory, 7624 Pécs, Hungary; (P.C.); (S.G.); (A.B.); (A.S.); (G.M.); (Á.S.)
- Department of Biochemistry and Medical Chemistry, University of Pécs Medical School, 7624 Pécs, Hungary
- MTA-PTE Human Reproduction Research Group, 7624 Pécs, Hungary
- Correspondence: ; Tel.: +36-304-734-714
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Díaz de la Guardia-Bolívar E, Barrios-Rodríguez R, Zwir I, Jiménez-Moleón JJ, Del Val C. Identification of novel prostate cancer genes in patients stratified by Gleason classification: role of antitumoral genes. Int J Cancer 2022; 151:255-264. [PMID: 35234293 PMCID: PMC9311191 DOI: 10.1002/ijc.33988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 02/03/2022] [Accepted: 02/16/2022] [Indexed: 12/24/2022]
Abstract
Prostate cancer (PCa) is a tumor with a great heterogeneity, both at a molecular and clinical level. Despite its global good prognosis, cases can vary from indolent to lethal metastatic and scientific efforts are aimed to discern those with worse outcomes. Current prognostic markers, as Gleason score, fall short when it comes to distinguishing these cases. Identification of new early biomarkers to enable a better PCa distinction and classification remains a challenge. In order to identify new genes implicated in PCa progression we conducted several differential gene expression analyses over paired samples comparing primary PCa tissue against healthy prostatic tissue of PCa patients. The results obtained show that this approach is a serious alternative to overcome patient heterogeneity. We were able to identify 250 genes whose expression varies along with tissue differentiation—healthy to tumor tissue, 161 of these genes are described here for the first time to be related to PCa. The further manual curation of these genes allowed to annotate 39 genes with antitumoral activity, 22 of them described for the first time to be related to PCa proliferation and metastasis. These findings could be replicated in different cohorts for most genes. Results obtained considering paired differential expression, functional annotation and replication results point to: CGREF1, UNC5A, C16orf74, LGR6, IGSF1, QPRT and CA14 as possible new early markers in PCa. These genes may prevent the progression of the disease and their expression should be studied in patients with different outcomes.
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Affiliation(s)
- Elisa Díaz de la Guardia-Bolívar
- Department of Computer Science and Artificial Intelligence, Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Granada, Spain
| | - Rocío Barrios-Rodríguez
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Complejo Hospitales Universitarios de Granada/Universidad de Granada, Granada, Spain.,Universidad de Granada, Departamento de Medicina Preventiva y Salud Pública, Granada, España
| | - Igor Zwir
- Department of Computer Science and Artificial Intelligence, Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Complejo Hospitales Universitarios de Granada/Universidad de Granada, Granada, Spain
| | - José Juan Jiménez-Moleón
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Complejo Hospitales Universitarios de Granada/Universidad de Granada, Granada, Spain.,Universidad de Granada, Departamento de Medicina Preventiva y Salud Pública, Granada, España
| | - Coral Del Val
- Department of Computer Science and Artificial Intelligence, Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.GRANADA, Complejo Hospitales Universitarios de Granada/Universidad de Granada, Granada, Spain
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Byun YJ, Kang HW, Piao XM, Zheng CM, Moon SK, Choi YH, Kim WT, Lee SC, Yun SJ, Kim WJ. Expression of hsv1-miR-H18 and hsv2-miR-H9 as a field defect marker for detecting prostate cancer. Prostate Int 2022; 10:1-6. [PMID: 35155300 PMCID: PMC8804185 DOI: 10.1016/j.prnil.2021.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 11/29/2022] Open
Abstract
Background Prostate-specific antigen (PSA) is a marker of prostate cancer (PCa), although its efficacy as a diagnostic marker remains controversial. A high false-positive rate leads to repeat biopsy in approximately 70% of patients, which may not be necessary. Epigenetic biomarkers of field cancerization have been investigated widely as promising tools for the diagnosis of patients with suspected tumors. In the current study, we examined the diagnostic value of two microRNA (miRNA) candidates, hsv1-miR-H18 and hsv2-miR-H9, using formalin-fixed paraffin-embedded (FFPE) tissues from patients with PCa or benign prostate hyperplasia (BPH) (as controls) to determine the usefulness of these markers for detecting the presence of cancer. Methods Expression of hsv1-miR-H18 and hsv2-miR-H9 in 201 FFPE tissues, including 52 primary tumors, 73 surrounding noncancerous tissues, and 90 BPH nontumor controls was examined by real-time PCR. Results Expression of hsv1-miR-H18 and hsv2-miR-H9 was significantly higher in primary tumors from PCa patients than in BPH controls (P < 0.0001). In patients within the PSA gray zone, the two viral miRNAs could distinguish PCa from controls with appropriate sensitivity and specificity. Expression of the two miRNAs did not differ between primary tumors and noncancerous surrounding tissues. Conclusions The viral miRNAs hsv1-miR-H18 and hsv2-miR-H9 may be associated with field cancerization of PCa and could be promising supplemental biomarkers to the PSA assay to decrease the rate of unnecessary biopsy, particularly in patients within the PSA gray zone.
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Affiliation(s)
- Young Joon Byun
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ho Won Kang
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
| | - Xuan-Mei Piao
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Chuang-Ming Zheng
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Sung-Kwon Moon
- Department of Food Science and Technology, Chung-Ang University, Ansung, 456-756, Korea
| | - Yung Hyun Choi
- Department of Biochemistry, Dongeui University College of Oriental Medicine, Busan, Korea
| | - Won Tae Kim
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
| | - Sang-Cheol Lee
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
| | - Seok Joong Yun
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
- Corresponding author. Department of Urology, College of Medicine, Chungbuk National University, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk 28644, Korea.
| | - Wun-Jae Kim
- Department of Urology, College of Medicine, Chungbuk National University, Cheongju, Korea
- Institute of Urotech, Cheongju, 28644, Korea
- Corresponding author. Department of Urology, College of Medicine, Chungbuk National University, Institute of Urotech, Chungdae-ro 1, Seowon-Gu, Cheongju, Chungbuk 28644, Korea.
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Erickson A, Hayes A, Rajakumar T, Verrill C, Bryant RJ, Hamdy FC, Wedge DC, Woodcock DJ, Mills IG, Lamb AD. A Systematic Review of Prostate Cancer Heterogeneity: Understanding the Clonal Ancestry of Multifocal Disease. Eur Urol Oncol 2021; 4:358-369. [PMID: 33888445 DOI: 10.1016/j.euo.2021.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/31/2021] [Accepted: 02/26/2021] [Indexed: 11/24/2022]
Abstract
CONTEXT Studies characterising genomic changes in prostate cancer (PCa) during natural progression have greatly increased our understanding of the disease. A better understanding of the evolutionary history of PCa would allow advances in diagnostics, prognostication, and novel therapies that together will improve patient outcomes. OBJECTIVE To review the molecular heterogeneity of PCa and assess recent efforts to profile intratumoural heterogeneity and clonal evolution. EVIDENCE ACQUISITION We screened a total of 1313 abstracts from PubMed published between 2009 and 2020, of which we reviewed 84 full-text articles. We excluded 49, resulting in 35 studies for qualitative analysis. EVIDENCE SYNTHESIS In studies of primary disease (16 studies, 4793 specimens), there is a lack of consensus regarding the monoclonal or polyclonal origin of primary PCa. There is no consistent mutation giving rise to primary PCa. Detailed clonal analysis of primary PCa has been limited by current techniques. By contrast, clonal relationships between PCa metastases and a potentiating clone have been consistently identified (19 studies, 732 specimens). Metastatic specimens demonstrate consistent truncal genomic aberrations that suggest monoclonal metastatic progenitors. CONCLUSIONS The relationship between the clonal dynamics of PCa and clinical outcomes needs further investigation. It is likely that this will provide a biological rationale for whether radical treatment of the primary tumour benefits patients with oligometastatic PCa. Future studies on the mutational burden in primary disease at single-cell resolution should permit the identification of clonal patterns underpinning the origin of lethal PCa. PATIENT SUMMARY Prostate cancers arise in different parts of the prostate because of DNA mutations that occur by chance at different times. These cancer cells and their origin can be tracked by DNA mapping. In this review we summarise the state of the art and outline what further science is needed to provide the missing answers.
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Affiliation(s)
- Andrew Erickson
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Alicia Hayes
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Oxford NIHR Biomedical Research Centre, University of Oxford, UK
| | - Timothy Rajakumar
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Clare Verrill
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Department of Cellular Pathology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Oxford National Institute for Health Research Biomedical Research Centre, Oxford, UK; Oxford NIHR Biomedical Research Centre, University of Oxford, UK
| | - Richard J Bryant
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Department of Urology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Oxford NIHR Biomedical Research Centre, University of Oxford, UK
| | - Freddie C Hamdy
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Department of Urology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Oxford NIHR Biomedical Research Centre, University of Oxford, UK
| | - David C Wedge
- Manchester Cancer Research Centre, University of Manchester, Manchester, UK
| | - Dan J Woodcock
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Oxford Big Data Institute, University of Oxford, Oxford, UK
| | - Ian G Mills
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Oxford NIHR Biomedical Research Centre, University of Oxford, UK
| | - Alastair D Lamb
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK; Department of Urology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Oxford NIHR Biomedical Research Centre, University of Oxford, UK.
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10
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Haffner MC, Zwart W, Roudier MP, True LD, Nelson WG, Epstein JI, De Marzo AM, Nelson PS, Yegnasubramanian S. Genomic and phenotypic heterogeneity in prostate cancer. Nat Rev Urol 2021; 18:79-92. [PMID: 33328650 PMCID: PMC7969494 DOI: 10.1038/s41585-020-00400-w] [Citation(s) in RCA: 212] [Impact Index Per Article: 70.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2020] [Indexed: 02/07/2023]
Abstract
From a clinical, morphological and molecular perspective, prostate cancer is a heterogeneous disease. Primary prostate cancers are often multifocal, having topographically and morphologically distinct tumour foci. Sequencing studies have revealed that individual tumour foci can arise as clonally distinct lesions with no shared driver gene alterations. This finding demonstrates that multiple genomically and phenotypically distinct primary prostate cancers can be present in an individual patient. Lethal metastatic prostate cancer seems to arise from a single clone in the primary tumour but can exhibit subclonal heterogeneity at the genomic, epigenetic and phenotypic levels. Collectively, this complex heterogeneous constellation of molecular alterations poses obstacles for the diagnosis and treatment of prostate cancer. However, advances in our understanding of intra-tumoural heterogeneity and the development of novel technologies will allow us to navigate these challenges, refine approaches for translational research and ultimately improve patient care.
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Affiliation(s)
- Michael C. Haffner
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA,Department of Pathology, University of Washington, Seattle, WA, USA,Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,
| | - Wilbert Zwart
- Division of Oncogenomics, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
| | | | - Lawrence D. True
- Department of Pathology, University of Washington, Seattle, WA, USA
| | - William G. Nelson
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jonathan I. Epstein
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Angelo M. De Marzo
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Peter S. Nelson
- Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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Ennour-Idrissi K, Dragic D, Issa E, Michaud A, Chang SL, Provencher L, Durocher F, Diorio C. DNA Methylation and Breast Cancer Risk: An Epigenome-Wide Study of Normal Breast Tissue and Blood. Cancers (Basel) 2020; 12:cancers12113088. [PMID: 33113958 PMCID: PMC7690691 DOI: 10.3390/cancers12113088] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/07/2020] [Accepted: 10/19/2020] [Indexed: 02/07/2023] Open
Abstract
Differential DNA methylation is a potential marker of breast cancer risk. Few studies have investigated DNA methylation changes in normal breast tissue and were largely confounded by cancer field effects. To detect methylation changes in normal breast epithelium that are causally associated with breast cancer occurrence, we used a nested case-control study design based on a prospective cohort of patients diagnosed with a primary invasive hormone receptor-positive breast cancer. Twenty patients diagnosed with a contralateral breast cancer (CBC) were matched (1:1) with 20 patients who did not develop a CBC on relevant risk factors. Differentially methylated Cytosine-phosphate-Guanines (CpGs) and regions in normal breast epithelium were identified using an epigenome-wide DNA methylation assay and robust linear regressions. Analyses were replicated in two independent sets of normal breast tissue and blood. We identified 7315 CpGs (FDR < 0.05), 52 passing strict Bonferroni correction (p < 1.22 × 10-7) and 43 mapping to known genes involved in metabolic diseases with significant enrichment (p < 0.01) of pathways involving fatty acids metabolic processes. Four differentially methylated genes were detected in both site-specific and regions analyses (LHX2, TFAP2B, JAKMIP1, SEPT9), and three genes overlapped all three datasets (POM121L2, KCNQ1, CLEC4C). Once validated, the seven differentially methylated genes distinguishing women who developed and who did not develop a sporadic breast cancer could be used to enhance breast cancer risk-stratification, and allow implementation of targeted screening and preventive strategies that would ultimately improve breast cancer prognosis.
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Affiliation(s)
- Kaoutar Ennour-Idrissi
- Département de Médecine Sociale et Préventive, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada; (K.E.-I.); (D.D.)
- Centre de Recherche sur le Cancer, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1R 3S3, Canada; (E.I.); (A.M.); (S.-L.C.); (F.D.)
- Département de Biologie Moléculaire, de Biochimie Médicale et de Pathologie de l’Université Laval, Québec, QC G1V 0A6, Canada
| | - Dzevka Dragic
- Département de Médecine Sociale et Préventive, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada; (K.E.-I.); (D.D.)
- Centre de Recherche sur le Cancer, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1R 3S3, Canada; (E.I.); (A.M.); (S.-L.C.); (F.D.)
| | - Elissar Issa
- Centre de Recherche sur le Cancer, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1R 3S3, Canada; (E.I.); (A.M.); (S.-L.C.); (F.D.)
- Département de Médecine Moléculaire, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Annick Michaud
- Centre de Recherche sur le Cancer, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1R 3S3, Canada; (E.I.); (A.M.); (S.-L.C.); (F.D.)
| | - Sue-Ling Chang
- Centre de Recherche sur le Cancer, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1R 3S3, Canada; (E.I.); (A.M.); (S.-L.C.); (F.D.)
| | - Louise Provencher
- Centre des Maladies du sein du CHU de Québec-Université Laval, Québec, QC G1S 4L8, Canada;
| | - Francine Durocher
- Centre de Recherche sur le Cancer, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1R 3S3, Canada; (E.I.); (A.M.); (S.-L.C.); (F.D.)
- Département de Médecine Moléculaire, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
| | - Caroline Diorio
- Département de Médecine Sociale et Préventive, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada; (K.E.-I.); (D.D.)
- Centre de Recherche sur le Cancer, Centre de Recherche du CHU de Québec-Université Laval, Québec, QC G1R 3S3, Canada; (E.I.); (A.M.); (S.-L.C.); (F.D.)
- Centre des Maladies du sein du CHU de Québec-Université Laval, Québec, QC G1S 4L8, Canada;
- Correspondence: ; Tel.: +1-418-682-7511-84726
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Multiparametric MRI as a Biomarker of Response to Neoadjuvant Therapy for Localized Prostate Cancer-A Pilot Study. Acad Radiol 2020; 27:1432-1439. [PMID: 31862185 DOI: 10.1016/j.acra.2019.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/18/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022]
Abstract
RATIONALE AND OBJECTIVES To explore a role for multiparametric MRI (mpMRI) as a biomarker of response to neoadjuvant androgen deprivation therapy (ADT) for prostate cancer (PCa). MATERIALS AND METHODS This prospective study was approved by the institutional review board and was HIPAA compliant. Eight patients with localized PCa had a baseline mpMRI, repeated after 6-months of ADT, followed by prostatectomy. mpMRI indices were extracted from tumor and normal regions of interest (TROI/NROI). Residual cancer burden (RCB) was measured on mpMRI and on the prostatectomy specimen. Paired t-tests compared TROI/NROI mpMRI indices and pre/post-treatment TROI mpMRI indices. Spearman's rank tested for correlations between MRI/pathology-based RCB, and between pathological RCB and mpMRI indices. RESULTS At baseline, TROI apparent diffusion coefficient (ADC) was lower and dynamic contrast enhanced (DCE) metrics were higher, compared to NROI (ADC: 806 ± 137 × 10-6 vs. 1277 ± 213 × 10-6 mm2/sec, p = 0.0005; Ktrans: 0.346 ± 0.16 vs. 0.144 ± 0.06 min-1, p = 0.002; AUC90: 0.213 ± 0.08 vs. 0.11 ± 0.03, p = 0.002). Post-treatment, there was no change in TROI ADC, but a decrease in TROI Ktrans (0.346 ± 0.16 to 0.188 ± 0.08 min-1; p = 0.02) and AUC90 (0.213 ± 0.08 to 0.13 ± 0.06; p = 0.02). Tumor volume decreased with ADT. There was no difference between mpMRI-based and pathology-based RCB, which positively correlated (⍴ = 0.74-0.81, p < 0.05). Pathology-based RCB positively correlated with post-treatment DCE metrics (⍴ = 0.76-0.70, p < 0.05) and negatively with ADC (⍴ = -0.79, p = 0.03). CONCLUSION Given the heterogeneity of PCa, an individualized approach to ADT may maximize potential benefit. This pilot study suggests that mpMRI may serve as a biomarker of ADT response and as a surrogate for RCB at prostatectomy.
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Combination of Peri-Tumoral and Intra-Tumoral Radiomic Features on Bi-Parametric MRI Accurately Stratifies Prostate Cancer Risk: A Multi-Site Study. Cancers (Basel) 2020; 12:cancers12082200. [PMID: 32781640 PMCID: PMC7465024 DOI: 10.3390/cancers12082200] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/28/2020] [Accepted: 08/03/2020] [Indexed: 12/21/2022] Open
Abstract
Background: Prostate cancer (PCa) influences its surrounding habitat, which tends to manifest as different phenotypic appearances on magnetic resonance imaging (MRI). This region surrounding the PCa lesion, or the peri-tumoral region, may encode useful information that can complement intra-tumoral information to enable better risk stratification. Purpose: To evaluate the role of peri-tumoral radiomic features on bi-parametric MRI (T2-weighted and Diffusion-weighted) to distinguish PCa risk categories as defined by D’Amico Risk Classification System. Materials and Methods: We studied a retrospective, HIPAA-compliant, 4-institution cohort of 231 PCa patients (n = 301 lesions) who underwent 3T multi-parametric MRI prior to biopsy. PCa regions of interest (ROIs) were delineated on MRI by experienced radiologists following which peri-tumoral ROIs were defined. Radiomic features were extracted within the intra- and peri-tumoral ROIs. Radiomic features differentiating low-risk from: (1) high-risk (L-vs.-H), and (2) (intermediate- and high-risk (L-vs.-I + H)) lesions were identified. Using a multi-institutional training cohort of 151 lesions (D1, N = 116 patients), machine learning classifiers were trained using peri- and intra-tumoral features individually and in combination. The remaining 150 lesions (D2, N = 115 patients) were used for independent hold-out validation and were evaluated using Receiver Operating Characteristic (ROC) analysis and compared with PI-RADS v2 scores. Results: Validation on D2 using peri-tumoral radiomics alone resulted in areas under the ROC curve (AUCs) of 0.84 and 0.73 for the L-vs.-H and L-vs.-I + H classifications, respectively. The best combination of intra- and peri-tumoral features resulted in AUCs of 0.87 and 0.75 for the L-vs.-H and L-vs.-I + H classifications, respectively. This combination improved the risk stratification results by 3–6% compared to intra-tumoral features alone. Our radiomics-based model resulted in a 53% accuracy in differentiating L-vs.-H compared to PI-RADS v2 (48%), on the validation set. Conclusion: Our findings suggest that peri-tumoral radiomic features derived from prostate bi-parametric MRI add independent predictive value to intra-tumoral radiomic features for PCa risk assessment.
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14
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Moses DA. Editorial for “Prostate Cancer Risk Stratification in Men With a Clinical Suspicion of Prostate Cancer Using a Unique Biparametric MRI and Expression of 11 Genes in Apparently Benign Tissue: Evaluation Using Machine‐Learning Techniques”. J Magn Reson Imaging 2020; 51:1554-1555. [DOI: 10.1002/jmri.27135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/03/2020] [Indexed: 11/09/2022] Open
Affiliation(s)
- Daniel A. Moses
- Department of RadiologyPrince of Wales Hospital Randwick New South Wales Australia
- School of Biomedical Engineering, Faculty of EngineeringUniversity of New South Wales Kensington New South Wales Australia
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15
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El-Kenawi A, Hänggi K, Ruffell B. The Immune Microenvironment and Cancer Metastasis. Cold Spring Harb Perspect Med 2020; 10:a037424. [PMID: 31501262 PMCID: PMC7117953 DOI: 10.1101/cshperspect.a037424] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The dynamic interplay between neoplastic cells and the immune microenvironment regulates every step of the metastatic process. Immune cells contribute to invasion by secreting a cornucopia of inflammatory factors that promote epithelial-to-mesenchymal transition and remodeling of the stroma. Cancer cells then intravasate to the circulatory system assisted by macrophages and use several pathways to avoid recognition by cytotoxtic lymphocytes and phagocytes. Circulating tumor cells that manage to adhere to the vasculature and encounter premetastic niches are able to use the associated myeloid cells to extravasate into ectopic organs and establish a dormant microscopic colony. If successful at avoiding repetitive immune attack, dormant cells can subsequently grow into overt, clinically detectable metastatic lesions, which ultimately account to most cancer-related deaths. Understanding how disseminated tumor cells evade and corrupt the immune system during the final stages of metastasis will be pivotal in developing new therapeutic modalities that combat metastasis.
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Affiliation(s)
- Asmaa El-Kenawi
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612, USA
| | - Kay Hänggi
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612, USA
| | - Brian Ruffell
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612, USA
- Department of Breast Oncology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida 33612, USA
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16
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Alterations in the methylome of the stromal tumour microenvironment signal the presence and severity of prostate cancer. Clin Epigenetics 2020; 12:48. [PMID: 32188493 PMCID: PMC7081708 DOI: 10.1186/s13148-020-00836-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/02/2020] [Indexed: 02/07/2023] Open
Abstract
Background Prostate cancer changes the phenotype of cells within the stromal microenvironment, including fibroblasts, which in turn promote tumour progression. Functional changes in prostate cancer-associated fibroblasts (CAFs) coincide with alterations in DNA methylation levels at loci-specific regulatory regions. Yet, it is not clear how these methylation changes compare across CAFs from different patients. Therefore, we examined the consistency and prognostic significance of genome-wide DNA methylation profiles between CAFs from patients with different grades of primary prostate cancer. Results We used Infinium MethylationEPIC BeadChips to evaluate genome-wide DNA methylation profiles from 18 matched CAFs and non-malignant prostate tissue fibroblasts (NPFs) from men with moderate to high grade prostate cancer, as well as five unmatched benign prostate tissue fibroblasts (BPFs) from men with benign prostatic hyperplasia. We identified two sets of differentially methylated regions (DMRs) in patient CAFs. One set of DMRs reproducibly differed between CAFs and fibroblasts from non-malignant tissue (NPFs and BPFs). Indeed, more than 1200 DMRs consistently changed in CAFs from every patient, regardless of tumour grade. The second set of DMRs varied between CAFs according to the severity of the tumour. Notably, hypomethylation of the EDARADD promoter occurred specifically in CAFs from high-grade tumours and correlated with increased transcript abundance and increased EDARADD staining in patient tissue. Across multiple cohorts, tumours with low EDARADD DNA methylation and high EDARADD mRNA expression were consistently associated with adverse clinical features and shorter recurrence free survival. Conclusions We identified a large set of DMRs that are commonly shared across CAFs regardless of tumour grade and outcome, demonstrating highly consistent epigenome changes in the prostate tumour microenvironment. Additionally, we found that CAFs from aggressive prostate cancers have discrete methylation differences compared to CAFs from moderate risk prostate cancer. Together, our data demonstrates that the methylome of the tumour microenvironment reflects both the presence and the severity of the prostate cancer and, therefore, may provide diagnostic and prognostic potential.
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Amirrad F, Pytak PA, Sadeghiani-Pelar N, Nguyen JPT, Cauble EL, Jones AC, Bisoffi M. Prostate field cancerization and exosomes: Association between CD9, early growth response 1 and fatty acid synthase. Int J Oncol 2020; 56:957-968. [PMID: 32319557 DOI: 10.3892/ijo.2020.4980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 01/23/2020] [Indexed: 11/06/2022] Open
Abstract
Intracapsular and well‑defined adenocarcinomas of the prostate are often surrounded by tissue areas that harbor molecular aberrations, including those of genetic, epigenetic and biochemical nature. This is known as field cancerization, or a field effect and denotes a state of pre‑malignancy. Such alterations in histologically normal tumor‑adjacent prostatic tissues have been recognized as clinically important and are potentially exploitable as biomarkers of disease and/or targets for preventative/therapeutic intervention. The authors have previously identified and validated two protein markers of field cancerization: The expressional upregulation of the transcription factor early growth response 1 (EGR‑1) and the lipogenic enzyme fatty acid synthase (FASN). However, the molecular etiology of prostate field cancerization, including EGR‑1 and FASN upregulation, remains largely unknown. It was thus hypothesized that extracellular vesicles, notably exosomes, released by tumor lesions may induce molecular alterations in the surrounding tissues, resulting in field cancerization, priming the tissue, and ultimately promoting multifocal tumorigenesis, which is often observed in prostate cancer. Towards testing this hypothesis, the current study, to the best of our knowledge, for the first time, presents correlative protein expression data, generated in disease‑free, tumor‑adjacent and cancerous human prostate tissues by quantitative immunofluorescence, between the exosomal marker CD9, and EGR‑1 and FASN. Despite the pilot character of the present study, and the static nature and heterogeneity of human tissues, the data suggest that CD9 expression itself is part of a field effect. In support of this hypothesis, the results suggest a possible contribution of exosomes to the induction of field cancerization in the prostate, particularly for EGR‑1. These findings were corroborated in established cell models of cancerous (LNCaP) and non‑cancerous (RWPE‑1) human prostate epithelial cells. The findings of this study warrant further investigation into the functional interface between exosomes and field cancerization, as a detailed understanding of this characterization may lead to the development of clinical applications related to diagnosis and/or prognosis and targeted intervention to prevent progression from pre‑malignancy to cancer.
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Affiliation(s)
- Farideh Amirrad
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - Philip A Pytak
- Division of Chemistry and Biochemistry, Chapman University Schmid College of Science and Technology, Keck Center for Science and Engineering, Orange, CA 92866, USA
| | - Neda Sadeghiani-Pelar
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - Julie P T Nguyen
- Division of Chemistry and Biochemistry, Chapman University Schmid College of Science and Technology, Keck Center for Science and Engineering, Orange, CA 92866, USA
| | - Emily L Cauble
- Division of Biological Sciences, Chapman University Schmid College of Science and Technology, Keck Center for Science and Engineering, Orange, CA 92866, USA
| | - Anna C Jones
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM 87102, USA
| | - Marco Bisoffi
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
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Inoue E, Yotsumoto T, Inoue Y, Fukami T, Kitani M, Hirano Y, Nagase M, Morio Y. Mediastinal metastasis from ovarian serous carcinoma 29 years after initial treatment. Respir Med Case Rep 2020; 29:101003. [PMID: 32257787 PMCID: PMC7118409 DOI: 10.1016/j.rmcr.2020.101003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 01/19/2020] [Indexed: 12/01/2022] Open
Abstract
Ovarian cancer is a critically lethal gynecologic malignancy. More than 80% of patients with ovarian cancer have relapses within 5 years after initial treatment. However, recurrence from ovarian cancer more than 20 years later is extremely rare. We report a case of a 67-year-old female with mediastinal metastasis from ovarian cancer 29 years after initial gynecologic surgery and chemotherapy.
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Affiliation(s)
- Eri Inoue
- Center for Pulmonary Diseases, Department of Respiratory Medicine, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Takuma Yotsumoto
- Center for Pulmonary Diseases, Department of Thoracic Surgery, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Yuta Inoue
- Center for Pulmonary Diseases, Department of Thoracic Surgery, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Takeshi Fukami
- Center for Pulmonary Diseases, Department of Thoracic Surgery, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Masashi Kitani
- Department of Diagnostic Pathology, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Yuta Hirano
- Center for Pulmonary Diseases, Department of Respiratory Medicine, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Maki Nagase
- Center for Pulmonary Diseases, Department of Respiratory Medicine, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
| | - Yoshiteru Morio
- Center for Pulmonary Diseases, Department of Respiratory Medicine, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan.,Center for Pulmonary Circulation and Hemoptysis, Department of Respiratory Medicine, National Hospital Organization Tokyo National Hospital, 3-1-1 Takeoka, Kiyose-shi, Tokyo, 204-8585, Japan
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Hsu CH, Hsiao CW, Sun CA, Wu WC, Yang T, Hu JM, Liao YC, Huang CH, Chen CY, Lin FH, Chou YC. Multiple gene promoter methylation and clinical stage in adjacent normal tissues: Effect on prognosis of colorectal cancer in Taiwan. Sci Rep 2020; 10:145. [PMID: 31924802 PMCID: PMC6954240 DOI: 10.1038/s41598-019-56691-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 12/16/2019] [Indexed: 12/16/2022] Open
Abstract
This study provide an insight that the panel genes methylation status in different clinical stage tended to reflect a different prognosis even in matched normal tissues, to clinical recommendation. We enrolled 153 colorectal cancer patients from a medical center in Taiwan and used the candidate gene approach to select five genes involved in carcinogenesis pathways. We analyzed the relationship between DNA methylation with different cancer stages and the prognostic outcome. There were significant trends of increasing risk of 5-year time to progression and event-free survival of subjects with raising number of hypermethylation genes both in normal tissue and tumor tissue. The group with two or more genes with aberrant methylation in the advanced cancer stages (Me/advanced) had lower 5-year event-free survival among patients with colorectal cancer in either normal or tumor tissue. The adjusted hazard ratios in the group with two or more genes with aberrant methylation with advanced cancer stages (Me/advanced) were 8.04 (95% CI, 2.80–23.1; P for trend <0.01) and 8.01 (95% CI, 1.92–33.4; P for trend <0.01) in normal and tumor tissue, respectively. DNA methylation status was significantly associated with poor prognosis outcome. This finding in the matched normal tissues of colorectal cancer patients could be an alternative source of prognostic markers to assist clinical decision making.
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Affiliation(s)
- Chih-Hsiung Hsu
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, Republic of China.,Teaching Office, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Cheng-Wen Hsiao
- Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Chien-An Sun
- Department of Public Health, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan, Republic of China.,Big Data Research Center, College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan, Republic of China
| | - Wen-Chih Wu
- School of Public Health, National Defense Medical Center, Taipei, Taiwan, Republic of China.,Department of Surgery, Suao and Yuanshan branches of Taipei Veterans General Hospital, Yilan County, Taiwan, Republic of China
| | - Tsan Yang
- Department of Health Business Administration, Meiho University, Pingtung County, Taiwan, Republic of China
| | - Je-Ming Hu
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, Republic of China.,Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China.,Adjunct Instructor, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Yu-Chan Liao
- School of Public Health, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Chi-Hua Huang
- School of Public Health, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Chao-Yang Chen
- Division of Colorectal Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China.,Adjunct Instructor, School of Medicine, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Fu-Huang Lin
- School of Public Health, National Defense Medical Center, Taipei, Taiwan, Republic of China
| | - Yu-Ching Chou
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, Republic of China. .,School of Public Health, National Defense Medical Center, Taipei, Taiwan, Republic of China.
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20
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Methylation Markers in Prostate Biopsies Are Prognosticators for Late Biochemical Recurrence and Therapy after Surgery in Prostate Cancer Patients. J Mol Diagn 2019; 22:30-39. [PMID: 31605802 DOI: 10.1016/j.jmoldx.2019.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 07/22/2019] [Accepted: 08/08/2019] [Indexed: 12/24/2022] Open
Abstract
After diagnosis of prostate cancer is confirmed by a positive biopsy, the tumor may be surgically removed via radical prostatectomy (RP). However, many prostate cancer patients experience biochemical recurrence after surgery and/or undergo salvage radiotherapy or hormone therapy. Timely treatment is required to prevent the spread of disease in these cases, and biopsy tissue may hold potential for disease prognostication before surgery is ever performed. We previously developed a prognostic multigene methylation panel in RP specimens, including APC, CRIP3, HOXD3, and TGFB2. In the current study, this panel was applied to a cohort of biopsy specimens (n = 86), which were assessed for DNA methylation using the real-time quantitative PCR-based multiplex MethyLight. The biopsy-based methylation panel is significantly associated with biochemical recurrence when combined with the current clinical parameter of prostate-specific antigen (PSA) levels at diagnosis and is able to prognosticate the initiation of salvage radiotherapy, where it outperforms PSA, and/or hormone therapy after RP. In addition, this methylation panel is significantly associated with late recurrence occurring within 5 and 7 years after surgery, when combined with PSA at diagnosis. Combining DNA methylation and clinicopathologic markers at the biopsy stage will not only increase their prognostic ability but will also ensure effective patient management.
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21
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Dinges SS, Vandergrift LA, Wu S, Berker Y, Habbel P, Taupitz M, Wu CL, Cheng LL. Metabolomic prostate cancer fields in HRMAS MRS-profiled histologically benign tissue vary with cancer status and distance from cancer. NMR IN BIOMEDICINE 2019; 32:e4038. [PMID: 30609175 PMCID: PMC7366614 DOI: 10.1002/nbm.4038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/05/2018] [Accepted: 10/13/2018] [Indexed: 05/05/2023]
Abstract
In this article, we review the state of the field of high resolution magic angle spinning MRS (HRMAS MRS)-based cancer metabolomics since its beginning in 2004; discuss the concept of cancer metabolomic fields, where metabolomic profiles measured from histologically benign tissues reflect patient cancer status; and report our HRMAS MRS metabolomic results, which characterize metabolomic fields in prostatectomy-removed cancerous prostates. Three-dimensional mapping of cancer lesions throughout each prostate enabled multiple benign tissue samples per organ to be classified based on distance from and extent of the closest cancer lesion as well as the Gleason score (GS) of the entire prostate. Cross-validated partial least squares-discriminant analysis separations were achieved between cancer and benign tissue, and between cancer tissue from prostates with high (≥4 + 3) and low (≤3 + 4) GS. Metabolomic field effects enabled histologically benign tissue adjacent to cancer to distinguish the GS and extent of the cancer lesion itself. Benign samples close to either low GS cancer or extensive cancer lesions could be distinguished from those far from cancer. Furthermore, a successfully cross-validated multivariate model for three benign tissue groups with varying distances from cancer lesions within one prostate indicates the scale of prostate cancer metabolomic fields. While these findings could, at present, be potentially useful in the prostate cancer clinic for analysis of biopsy or surgical specimens to complement current diagnostics, the confirmation of metabolomic fields should encourage further examination of cancer fields and can also enhance understanding of the metabolomic characteristics of cancer in myriad organ systems. Our results together with the success of HRMAS MRS-based cancer metabolomics presented in our literature review demonstrate the potential of cancer metabolomics to provide supplementary information for cancer diagnosis, staging, and patient prognostication.
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Affiliation(s)
- Sarah S. Dinges
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
- Department of Haematology and Oncology, CCM, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Department of Radiology, Charité Medical University of Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Lindsey A. Vandergrift
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
| | - Shulin Wu
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
| | - Yannick Berker
- Division of X-Ray Imaging and Computed Tomography, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Piet Habbel
- Department of Haematology and Oncology, CCM, Charité – Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Matthias Taupitz
- Department of Radiology, Charité Medical University of Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Chin-Lee Wu
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
| | - Leo L. Cheng
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, 02114 USA
- Corresponding author: Leo L. Cheng, PhD, 149 13 St, CNY 6, Charlestown, MA 02129, Ph. 617-724-6593,
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22
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Liao Z, Tan ZW, Zhu P, Tan NS. Cancer-associated fibroblasts in tumor microenvironment – Accomplices in tumor malignancy. Cell Immunol 2019; 343:103729. [DOI: https:/doi.org/10.1016/j.cellimm.2017.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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23
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Wessels DJ, Pradhan N, Park YN, Klepitsch MA, Lusche DF, Daniels KJ, Conway KD, Voss ER, Hegde SV, Conway TP, Soll DR. Reciprocal signaling and direct physical interactions between fibroblasts and breast cancer cells in a 3D environment. PLoS One 2019; 14:e0218854. [PMID: 31233557 PMCID: PMC6590889 DOI: 10.1371/journal.pone.0218854] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 06/11/2019] [Indexed: 12/20/2022] Open
Abstract
Tumorigenic cells undergo cell aggregation and aggregate coalescence in a 3D Matrigel environment. Here, we expanded this 3D platform to assess the interactions of normal human dermal fibroblasts (NHDFs) and human primary mammary fibroblasts (HPMFs) with breast cancer-derived, tumorigenic cells (MDA-MB-231). Medium conditioned by MDA-MB-231 cells activates both types of fibroblasts, imbuing them with the capacity to accelerate the rate of aggregation and coalescence of MDA-MB-231 cells more than four fold. Acceleration is achieved 1) by direct physical interactions with MDA-MB-231 cells, in which activated fibroblasts penetrate the MDA-MB-231/Matrigel 3D environment and function as supporting scaffolds for MDA-MB-231 aggregation and coalescence, and 2) through the release of soluble accelerating factors, including matrix metalloproteinase (MMPs) and, in the case of activated NHDFs, SDF-1α/CXCL12. Fibroblast activation includes changes in morphology, motility, and gene expression. Podoplanin (PDPN) and fibroblast activation protein (FAP) are upregulated by more than nine-fold in activated NHDFs while activated HPMFs upregulate FAP, vimentin, desmin, platelet derived growth factor receptor A and S100A4. Overexpression of PDPN, but not FAP, in NHDF cells in the absence of MDA-MB-231-conditioned medium, activates NHDFs. These results reveal that complex reciprocal signaling between fibroblasts and cancer cells, coupled with their physical interactions, occurs in a highly coordinated fashion that orchestrates aggregation and coalescence, behaviors specific to cancer cells in a 3D environment. These in vitro interactions may reflect events involved in early tumorigenesis, particularly in cases of field cancerization, and may represent a new mechanism whereby cancer-associated fibroblasts (CAFs) promote tumor growth.
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Affiliation(s)
- Deborah J. Wessels
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Nikash Pradhan
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Yang-Nim Park
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Megan A. Klepitsch
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Daniel F. Lusche
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Karla J. Daniels
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Kayla D. Conway
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Edward R. Voss
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Suchaeta V. Hegde
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - Thomas P. Conway
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
| | - David R. Soll
- Developmental Studies Hybridoma Bank and W.M. Keck Dynamic Image Analysis Facility, Department of Biology, The University of Iowa, Iowa City, Iowa, United States of America
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24
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Frame FM, Maitland NJ. Epigenetic Control of Gene Expression in the Normal and Malignant Human Prostate: A Rapid Response Which Promotes Therapeutic Resistance. Int J Mol Sci 2019; 20:E2437. [PMID: 31108832 PMCID: PMC6566891 DOI: 10.3390/ijms20102437] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 04/24/2019] [Accepted: 04/29/2019] [Indexed: 12/12/2022] Open
Abstract
A successful prostate cancer must be capable of changing its phenotype in response to a variety of microenvironmental influences, such as adaptation to treatment or successful proliferation at a particular metastatic site. New cell phenotypes emerge by selection from the large, genotypically heterogeneous pool of candidate cells present within any tumor mass, including a distinct stem cell-like population. In such a multicellular model of human prostate cancer, flexible responses are primarily governed not only by de novo mutations but appear to be dominated by a combination of epigenetic controls, whose application results in treatment resistance and tumor relapse. Detailed studies of these individual cell populations have resulted in an epigenetic model for epithelial cell differentiation, which is also instructive in explaining the reported high and inevitable relapse rates of human prostate cancers to a multitude of treatment types.
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Affiliation(s)
- Fiona M Frame
- The Cancer Research Unit, Department of Biology, University of York, Heslington, York YO10 5DD, UK.
| | - Norman J Maitland
- The Cancer Research Unit, Department of Biology, University of York, Heslington, York YO10 5DD, UK.
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25
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Randall EC, Zadra G, Chetta P, Lopez BGC, Syamala S, Basu SS, Agar JN, Loda M, Tempany CM, Fennessy FM, Agar NYR. Molecular Characterization of Prostate Cancer with Associated Gleason Score Using Mass Spectrometry Imaging. Mol Cancer Res 2019; 17:1155-1165. [PMID: 30745465 PMCID: PMC6497547 DOI: 10.1158/1541-7786.mcr-18-1057] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/19/2018] [Accepted: 02/06/2019] [Indexed: 12/31/2022]
Abstract
Diagnosis of prostate cancer is based on histologic evaluation of tumor architecture using a system known as the "Gleason score." This diagnostic paradigm, while the standard of care, is time-consuming, shows intraobserver variability, and provides no information about the altered metabolic pathways, which result in altered tissue architecture. Characterization of the molecular composition of prostate cancer and how it changes with respect to the Gleason score (GS) could enable a more objective and faster diagnosis. It may also aid in our understanding of disease onset and progression. In this work, we present mass spectrometry imaging for identification and mapping of lipids and metabolites in prostate tissue from patients with known prostate cancer with GS from 6 to 9. A gradient of changes in the intensity of various lipids was observed, which correlated with increasing GS. Interestingly, these changes were identified in both regions of high tumor cell density, and in regions of tissue that appeared histologically benign, possibly suggestive of precancerous metabolomic changes. A total of 31 lipids, including several phosphatidylcholines, phosphatidic acids, phosphatidylserines, phosphatidylinositols, and cardiolipins were detected with higher intensity in GS (4+3) compared with GS (3+4), suggesting they may be markers of prostate cancer aggression. Results obtained through mass spectrometry imaging studies were subsequently correlated with a fast, ambient mass spectrometry method for potential use as a clinical tool to support image-guided prostate biopsy. IMPLICATIONS: In this study, we suggest that metabolomic differences between prostate cancers with different Gleason scores can be detected by mass spectrometry imaging.
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Affiliation(s)
- Elizabeth C Randall
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Giorgia Zadra
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Paolo Chetta
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
- University of Milan, Milan, Italy
| | - Begona G C Lopez
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Sudeepa Syamala
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Sankha S Basu
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Jeffrey N Agar
- Chemistry and Chemical Biology, Northeastern University, Boston, Massachusetts
| | - Massimo Loda
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Clare M Tempany
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Fiona M Fennessy
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Nathalie Y R Agar
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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26
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Adamo H, Hammarsten P, Hägglöf C, Dahl Scherdin T, Egevad L, Stattin P, Halin Bergström S, Bergh A. Prostate cancer induces C/EBPβ expression in surrounding epithelial cells which relates to tumor aggressiveness and patient outcome. Prostate 2019; 79:435-445. [PMID: 30536410 DOI: 10.1002/pros.23749] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 11/08/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND Implantation of rat prostate cancer cells into the normal rat prostate results in tumor-stimulating adaptations in the tumor-bearing organ. Similar changes are seen in prostate cancer patients and they are related to outcome. One gene previously found to be upregulated in the non-malignant part of tumor-bearing prostate lobe in rats was the transcription factor CCAAT/enhancer-binding protein-β (C/EBPβ). METHODS To explore this further, we examined C/EBPβ expression by quantitative RT-PCR, immunohistochemistry, and Western blot in normal rat prostate tissue surrounding slow-growing non-metastatic Dunning G, rapidly growing poorly metastatic (AT-1), and rapidly growing highly metastatic (MatLyLu) rat prostate tumors-and also by immunohistochemistry in a tissue microarray (TMA) from prostate cancer patients managed by watchful waiting. RESULTS In rats, C/EBPβ mRNA expression was upregulated in the surrounding tumor-bearing prostate lobe. In tumors and in the surrounding non-malignant prostate tissue, C/EBPβ was detected by immunohistochemistry in some epithelial cells and in infiltrating macrophages. The magnitude of glandular epithelial C/EBPβ expression in the tumor-bearing prostates was associated with tumor size, distance to the tumor, and metastatic capacity. In prostate cancer patients, high expression of C/EBPβ in glandular epithelial cells in the surrounding tumor-bearing tissue was associated with accumulation of M1 macrophages (iNOS+) and favorable outcome. High expression of C/EBPβ in tumor epithelial cells was associated with high Gleason score, high tumor cell proliferation, metastases, and poor outcome. CONCLUSIONS This study suggest that the expression of C/EBP-beta, a transcription factor mediating multiple biological effects, is differentially expressed both in the benign parts of the tumor-bearing prostate and in prostate tumors, and that alterations in this may be related to patient outcome.
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Affiliation(s)
- Hanibal Adamo
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Peter Hammarsten
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Christina Hägglöf
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Tove Dahl Scherdin
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Lars Egevad
- Department of Oncology-Pathology, Karolinska University Hospital, Stockholm, Sweden
| | - Pär Stattin
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | | | - Anders Bergh
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
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27
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Halperin RF, Liang WS, Kulkarni S, Tassone EE, Adkins J, Enriquez D, Tran NL, Hank NC, Newell J, Kodira C, Korn R, Berens ME, Kim S, Byron SA. Leveraging Spatial Variation in Tumor Purity for Improved Somatic Variant Calling of Archival Tumor Only Samples. Front Oncol 2019; 9:119. [PMID: 30949446 PMCID: PMC6435595 DOI: 10.3389/fonc.2019.00119] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 02/11/2019] [Indexed: 12/28/2022] Open
Abstract
Archival tumor samples represent a rich resource of annotated specimens for translational genomics research. However, standard variant calling approaches require a matched normal sample from the same individual, which is often not available in the retrospective setting, making it difficult to distinguish between true somatic variants and individual-specific germline variants. Archival sections often contain adjacent normal tissue, but this tissue can include infiltrating tumor cells. As existing comparative somatic variant callers are designed to exclude variants present in the normal sample, a novel approach is required to leverage adjacent normal tissue with infiltrating tumor cells for somatic variant calling. Here we present lumosVar 2.0, a software package designed to jointly analyze multiple samples from the same patient, built upon our previous single sample tumor only variant caller lumosVar 1.0. The approach assumes that the allelic fraction of somatic variants and germline variants follow different patterns as tumor content and copy number state change. lumosVar 2.0 estimates allele specific copy number and tumor sample fractions from the data, and uses a to model to determine expected allelic fractions for somatic and germline variants and to classify variants accordingly. To evaluate the utility of lumosVar 2.0 to jointly call somatic variants with tumor and adjacent normal samples, we used a glioblastoma dataset with matched high and low tumor content and germline whole exome sequencing data (for true somatic variants) available for each patient. Both sensitivity and positive predictive value were improved when analyzing the high tumor and low tumor samples jointly compared to analyzing the samples individually or in-silico pooling of the two samples. Finally, we applied this approach to a set of breast and prostate archival tumor samples for which tumor blocks containing adjacent normal tissue were available for sequencing. Joint analysis using lumosVar 2.0 detected several variants, including known cancer hotspot mutations that were not detected by standard somatic variant calling tools using the adjacent tissue as presumed normal reference. Together, these results demonstrate the utility of leveraging paired tissue samples to improve somatic variant calling when a constitutional sample is not available.
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Affiliation(s)
- Rebecca F Halperin
- Quantitative Medicine and Systems Biology Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Winnie S Liang
- Integrated Cancer Genomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Sidharth Kulkarni
- Quantitative Medicine and Systems Biology Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Erica E Tassone
- Integrated Cancer Genomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Jonathan Adkins
- Integrated Cancer Genomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Daniel Enriquez
- Integrated Cancer Genomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | | | | | - James Newell
- HonorHealth Scottsdale Shea Medical Center, Scottsdale, AZ, United States
| | - Chinnappa Kodira
- GE Global Research Center, Niskayuna, NY, United States.,PureTech Health, Boston, MA, United States
| | - Ronald Korn
- Imaging Endpoints, Scottsdale, AZ, United States.,HonorHealth Scottsdale Shea Medical Center, Scottsdale, AZ, United States
| | - Michael E Berens
- Cancer and Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, United States
| | - Seungchan Kim
- Prairie View A&M University, Prairie View, TX, United States
| | - Sara A Byron
- Integrated Cancer Genomics Division, Translational Genomics Research Institute, Phoenix, AZ, United States
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28
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Carleton NM, Lee G, Madabhushi A, Veltri RW. Advances in the computational and molecular understanding of the prostate cancer cell nucleus. J Cell Biochem 2018; 119:7127-7142. [PMID: 29923622 PMCID: PMC6150831 DOI: 10.1002/jcb.27156] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 05/18/2018] [Indexed: 12/17/2022]
Abstract
Nuclear alterations are a hallmark of many types of cancers, including prostate cancer (PCa). Recent evidence shows that subvisual changes, ones that may not be visually perceptible to a pathologist, to the nucleus and its ultrastructural components can precede visual histopathological recognition of cancer. Alterations to nuclear features, such as nuclear size and shape, texture, and spatial architecture, reflect the complex molecular-level changes that occur during oncogenesis. Quantitative nuclear morphometry, a field that uses computational approaches to identify and quantify malignancy-induced nuclear changes, can enable a detailed and objective analysis of the PCa cell nucleus. Recent advances in machine learning-based approaches can now automatically mine data related to these changes to aid in the diagnosis, decision making, and prediction of PCa prognoses. In this review, we use PCa as a case study to connect the molecular-level mechanisms that underlie these nuclear changes to the machine learning computational approaches, bridging the gap between the clinical and computational understanding of PCa. First, we will discuss recent developments to our understanding of the molecular events that drive nuclear alterations in the context of PCa: the role of the nuclear matrix and lamina in size and shape changes, the role of 3-dimensional chromatin organization and epigenetic modifications in textural changes, and the role of the tumor microenvironment in altering nuclear spatial topology. We will then discuss the advances in the applications of machine learning algorithms to automatically segment nuclei in prostate histopathological images, extract nuclear features to aid in diagnostic decision making, and predict potential outcomes, such as biochemical recurrence and survival. Finally, we will discuss the challenges and opportunities associated with translation of the quantitative nuclear morphometry methodology into the clinical space. Ultimately, accurate identification and quantification of nuclear alterations can contribute to the field of nucleomics and has applications for computationally driven precision oncologic patient care.
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Affiliation(s)
- Neil M. Carleton
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213
| | - George Lee
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106
| | - Anant Madabhushi
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106
| | - Robert W. Veltri
- The James Buchanan Brady Urological Institute, Department of Urology, The Johns Hopkins University School of Medicine, Baltimore, MD 21287
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29
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Yim JH, Choi AH, Li AX, Qin H, Chang S, Tong SWT, Chu P, Kim BW, Schmolze D, Lew R, Ibrahim Y, Poroyko VA, Salvatierra S, Baker A, Wang J, Wu X, Pfeifer GP, Fong Y, Hahn MA. Identification of Tissue-Specific DNA Methylation Signatures for Thyroid Nodule Diagnostics. Clin Cancer Res 2018; 25:544-551. [PMID: 30093451 DOI: 10.1158/1078-0432.ccr-18-0841] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 07/01/2018] [Accepted: 08/06/2018] [Indexed: 12/13/2022]
Abstract
PURPOSE Thyroid cancer is frequently difficult to diagnose due to an overlap of cytologic features between malignant and benign nodules. This overlap leads to unnecessary removal of the thyroid in patients without cancer. While providing some improvement over cytopathologic diagnostics, molecular methods frequently fail to provide a correct diagnosis for thyroid nodules. These approaches are based on the difference between cancer and adjacent thyroid tissue and assume that adjacent tissues are the same as benign nodules. However, in contrast to adjacent tissues, benign thyroid nodules can contain genetic alterations that can be found in cancer.Experimental Design: For the development of a new molecular diagnostic test for thyroid cancer, we evaluated DNA methylation in 109 thyroid tissues by using genome-wide single-base resolution DNA methylation analysis. The test was validated in a retrospective cohort containing 65 thyroid nodules. RESULTS By conducting reduced representation bisulfite sequencing in 109 thyroid specimens, we found significant differences between adjacent tissue, benign nodules, and cancer. These tissue-specific signatures are strongly linked to active enhancers and cancer-associated genes. Based on these signatures, we developed a new epigenetic approach for thyroid diagnostics. According to the validation cohort, our test has an estimated specificity of 97% [95% confidence interval (CI), 81-100], sensitivity of 100% (95% CI, 87-100), positive predictive value of 97% (95% CI, 83-100), and negative predictive value of 100% (95% CI, 86-100). CONCLUSIONS These data show that epigenetic testing can provide outstanding diagnostic accuracy for thyroid nodules.See related commentary by Mitmaker et al., p. 457.
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Affiliation(s)
- John H Yim
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California.
| | - Audrey H Choi
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Arthur X Li
- Department of Information Sciences, Beckman Research Institute of City of Hope, Duarte, California
| | - Hanjun Qin
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, California
| | - Sue Chang
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Sun-Wing T Tong
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Peiguo Chu
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Byung-Wook Kim
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Daniel Schmolze
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Ryan Lew
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Yasmine Ibrahim
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Valeriy A Poroyko
- Department of Medical Oncology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Sylvana Salvatierra
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Alysha Baker
- Department of Pathology, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Jinhui Wang
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, California
| | - Xiwei Wu
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, California
| | - Gerd P Pfeifer
- Center for Epigenetics, Van Andel Research Institute, Grand Rapids, Michigan
| | - Yuman Fong
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California
| | - Maria A Hahn
- Department of Surgery, City of Hope Comprehensive Cancer Center, Duarte, California.
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30
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Zhao S, Løvf M, Carm KT, Bakken AC, Hoff AM, Skotheim RI. Novel transcription-induced fusion RNAs in prostate cancer. Oncotarget 2018; 8:49133-49143. [PMID: 28467780 PMCID: PMC5564755 DOI: 10.18632/oncotarget.17099] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 04/03/2017] [Indexed: 12/21/2022] Open
Abstract
Prostate cancer is a clinically and pathologically heterogeneous disease with a broad spectrum of molecular abnormalities in the genome and transcriptome. One key feature is the involvement of chromosomal rearrangements creating fusion genes. Recent RNA-sequencing technology has uncovered that fusions which are not caused by chromosomal rearrangements, but rather meditated at transcription level, are common in both healthy and diseased cells. Such fusion transcripts have been proven highly associated with prostate cancer development and progression. To discover novel fusion transcripts, we analyzed RNA sequencing data from 44 primary prostate tumors and matched benign tissues from The Cancer Genome Atlas. Twenty-one high-confident candidates were significantly enriched in malignant vs. benign samples. Thirteen of the candidates have not previously been described in prostate cancer, and among them, five long intergenic non-coding RNAs are involved as fusion partners. Their expressions were validated in 50 additional prostate tumor samples and seven prostate cancer cell lines. For four fusion transcripts, we found a positive correlation between their expression and the expression of the 3′ partner gene. Among these, differential exon usage and qRT-PCR analyses in particular support that SLC45A3-ELK4 is mediated by an RNA polymerase read-through mechanism.
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Affiliation(s)
- Sen Zhao
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Norwegian Radium Hospital, Oslo, Norway.,Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Marthe Løvf
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Norwegian Radium Hospital, Oslo, Norway.,Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Kristina Totland Carm
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Norwegian Radium Hospital, Oslo, Norway.,Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Anne Cathrine Bakken
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Norwegian Radium Hospital, Oslo, Norway.,Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Andreas M Hoff
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Norwegian Radium Hospital, Oslo, Norway.,Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Rolf I Skotheim
- Department of Molecular Oncology, Institute for Cancer Research, Oslo University Hospital-Norwegian Radium Hospital, Oslo, Norway.,Center for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Informatics, Faculty of Natural Science and Mathematics, University of Oslo, Oslo, Norway
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31
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Abstract
Therapeutics that block kinases, transcriptional modifiers, immune checkpoints and other biological vulnerabilities are transforming cancer treatment. As a result, many patients achieve dramatic responses, including complete radiographical or pathological remission, yet retain minimal residual disease (MRD), which results in relapse. New functional approaches can characterize clonal heterogeneity and predict therapeutic sensitivity of MRD at a single-cell level. Preliminary evidence suggests that iterative detection, profiling and targeting of MRD would meaningfully improve outcomes and may even lead to cure.
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Affiliation(s)
- Marlise R. Luskin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA,
| | - Mark A. Murakami
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA,
| | - Scott R. Manalis
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA
- Corresponding authors: (S. R. M.) and (D. M. W.)
| | - David M. Weinstock
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA,
- Broad Institute of MIT and Harvard University, Cambridge, Massachusetts, 02142, USA
- Corresponding authors: (S. R. M.) and (D. M. W.)
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32
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Sass SN, Ramsey KD, Egan SM, Wang J, Cortes Gomez E, Gollnick SO. Tumor-associated myeloid cells promote tumorigenesis of non-tumorigenic human and murine prostatic epithelial cell lines. Cancer Immunol Immunother 2018; 67:873-883. [PMID: 29502208 PMCID: PMC5951898 DOI: 10.1007/s00262-018-2143-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 02/26/2018] [Indexed: 11/29/2022]
Abstract
The etiology of prostate cancer is poorly understood, but it is a multi-step process that has been linked to environmental factors that induce inflammation within the gland. Glands of prostate cancer patients frequently contain multiple zones of disease at various stages of progression. The factors that drive disease progression from an indolent benign stage to aggressive disease are not well-defined. Prostate inflammation and carcinoma are associated with high levels of myeloid cell infiltration; these cells are linked to disease progression in other cancers, but their role in prostate cancer is unclear. To determine whether myeloid cells contribute to prostate cancer progression, the ability of prostate tumor-associated CD11b+ cells (TAMC) to drive prostate epithelial cell tumorigenesis was tested. Co-culture of CD11b+ TAMC with non-tumorigenic genetically primed prostate epithelial cells resulted in stable transformation and induction of tumorigenesis. RNA sequencing identified the IL-1α pathway as a potential molecular mechanism responsible for tumor promotion by TAMC. Inhibition of IL-1α delayed growth of TAMC-induced tumors. Further analysis showed that IL-1α inhibition led to decreased angiogenesis within tumors, suggesting that IL-1α promotes prostate tumor progression, potentially through augmentation of angiogenesis.
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Affiliation(s)
- Stephanie N Sass
- Department of Immunology, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA
| | - Kimberley D Ramsey
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA
| | - Shawn M Egan
- Department of Immunology, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA
| | - Jianmin Wang
- Department of Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Eduardo Cortes Gomez
- Department of Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Sandra O Gollnick
- Department of Immunology, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA.
- Department of Cell Stress Biology, Roswell Park Cancer Institute, Elm and Carlton Sts, Buffalo, NY, 14263, USA.
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33
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Fujita K, Hayashi T, Matsuzaki K, Nakata W, Masuda M, Kawashima A, Ujike T, Nagahara A, Tsuchiya M, Kobayashi Y, Nojima S, Uemura M, Morii E, Miyoshi E, Nonomura N. Decreased fucosylated PSA as a urinary marker for high Gleason score prostate cancer. Oncotarget 2018; 7:56643-56649. [PMID: 27494861 PMCID: PMC5302941 DOI: 10.18632/oncotarget.10987] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 07/13/2016] [Indexed: 12/03/2022] Open
Abstract
Fucosylation is an important oligosaccharide modification associated with cancer and inflammation. We investigated whether urinary fucosylated PSA (Fuc-PSA) levels could be used for the detection of high Gleason score prostate cancer. Urine samples were collected from men with abnormal digital rectal examination findings or elevated serum PSA levels, before prostate biopsy. Lectin-antibody ELISA was used to quantify the Lewis-type or core-type fucosylated PSA (PSA-AAL) and core-type fucosylated PSA (PSA-PhoSL) in the urine samples. Both types of urinary Fuc-PSA were significantly decreased in the men with prostate cancer compared with the men whose biopsies were negative for cancer (P = 0.026 and P < 0.001, respectively). Both were also significantly associated with the Gleason scores of the biopsy specimens (P = 0.001 and P < 0.001, respectively). Multivariate analysis showed that PSA density, urinary PSA-AAL, and urinary PSA-PhoSL were independent predictors of high Gleason score prostate cancer. The area under the receiver-operator characteristic curve (AUC) value for the prediction of cancers of Gleason score ≥ 7 was 0.69 for urinary PSA-AAL and 0.72 for urinary PSA-PhoSL. In contrast, the AUC value was 0.59 for serum PSA, 0.63 for PSA density, and 0.58 for urinary PSA. In conclusion, a decreased urinary Fuc-PSA level is a potential marker for the detection of high Gleason score prostate cancer.
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Affiliation(s)
- Kazutoshi Fujita
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takuji Hayashi
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kyosuke Matsuzaki
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Wataru Nakata
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Mika Masuda
- Department of Molecular Biochemistry and Clinical Investigation, Osaka University Graduate School of Medicine, Suita, Japan
| | - Atsunari Kawashima
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takeshi Ujike
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Akira Nagahara
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Mutsumi Tsuchiya
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | | | - Satoshi Nojima
- Department of Pathology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Motohide Uemura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Eiji Miyoshi
- Department of Molecular Biochemistry and Clinical Investigation, Osaka University Graduate School of Medicine, Suita, Japan
| | - Norio Nonomura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
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34
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Cancer-associated fibroblasts in tumor microenvironment - Accomplices in tumor malignancy. Cell Immunol 2018; 343:103729. [PMID: 29397066 DOI: 10.1016/j.cellimm.2017.12.003] [Citation(s) in RCA: 193] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/15/2017] [Accepted: 12/04/2017] [Indexed: 12/12/2022]
Abstract
There is much cellular heterogeneity in the tumor microenvironment. The tumor epithelia and stromal cells co-evolve, and this reciprocal relationship dictates almost every step of cancer development and progression. Despite this, many anticancer therapies are designed around druggable features of tumor epithelia, ignoring the supportive role of stromal cells. Cancer-associated fibroblasts (CAFs) are the dominant cell type within the reactive stroma of many tumor types. Numerous previous studies have highlighted a pro-tumorigenic role for CAFs via secretion of various growth factors, cytokines, chemokines, and the degradation of extracellular matrix. Recent works showed that CAFs secrete H2O2 to effect stromal-mediated field cancerization, transform primary epithelial cells, and aggravate cancer cell aggressiveness, in addition to inflammatory and mitogenic factors. Molecular characterization of CAFs also underscores the importance of Notch and specific nuclear receptor signaling in the activation of CAFs. This review consolidates recent findings of CAFs and highlights areas for future investigations.
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35
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Baker KT, Salk JJ, Brentnall TA, Risques RA. Precancer in ulcerative colitis: the role of the field effect and its clinical implications. Carcinogenesis 2018; 39:11-20. [PMID: 29087436 PMCID: PMC6248676 DOI: 10.1093/carcin/bgx117] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 09/22/2017] [Accepted: 10/26/2017] [Indexed: 12/13/2022] Open
Abstract
Cumulative evidence indicates that a significant proportion of cancer evolution may occur before the development of histological abnormalities. While recent improvements in DNA sequencing technology have begun to reveal the presence of these early preneoplastic clones, the concept of 'premalignant field' was already introduced by Slaughter more than half a century ago. Also referred to as 'field effect', 'field defect' or 'field cancerization', these terms describe the phenomenon by which molecular alterations develop in normal-appearing tissue and expand to form premalignant patches with the potential to progress to dysplasia and cancer. Field effects have been well-characterized in ulcerative colitis, an inflammatory bowel disease that increases the risk of colorectal cancer. The study of the molecular alterations that define these fields is informative of mechanisms of tumor initiation and progression and has provided potential targets for early cancer detection. Herein, we summarize the current knowledge about the molecular alterations that comprise the field effect in ulcerative colitis and the clinical utility of these fields for cancer screening and prevention.
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Affiliation(s)
- Kathryn T Baker
- Department of Pathology, University of Washington, Seattle, WA, USA
| | - Jesse J Salk
- Division of Hematology and Oncology, Department of Medicine, University of
Washington, Seattle, WA, USA
- TwinStrand Biosciences Seattle, WA, USA
| | - Teresa A Brentnall
- Division of Gasteroenterology, Department of Medicine, University of
Washington, Seattle, WA, USA
| | - Rosa Ana Risques
- To whom correspondence should be addressed. Tel: +206-616-4976; Fax:
+206-543-1140;
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36
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Nguyen DP, Vertosick EA, Sharma V, Corradi RB, Vilaseca A, Takeda T, Sjoberg DD, Benfante N, Fine SW, Reuter VE, Scardino PT, Eastham JA, Karnes RJ, Touijer KA. Does Subclassification of Pathologically Organ Confined (pT2) Prostate Cancer Provide Prognostic Discrimination of Outcomes after Radical Prostatectomy? J Urol 2018; 199:1502-1509. [PMID: 29307681 DOI: 10.1016/j.juro.2017.12.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/22/2017] [Indexed: 11/17/2022]
Abstract
PURPOSE We tested the latest update in the prostate cancer staging system by assessing the prognostic association of pT2 subclassification with the probability of survival related outcomes in patients who underwent radical prostatectomy. MATERIALS AND METHODS We retrospectively analyzed the records of a total of 15,305 patients who underwent radical prostatectomy at 2 referral centers between 1985 and 2016, and had pT2 disease at the final pathological evaluation. Descriptive statistics were used to compare baseline data stratified by pT2 substages (pT2a/b vs pT2c). Cox regression models were adjusted for institution analyzed differences in the rate of biochemical recurrence, metastasis, cancer specific death and overall mortality. Multivariable Cox regression models were used to evaluate the predictive value of pT2 subclassification for survival, including the linear predictor from the Stephenson nomogram. RESULTS Prostate specific antigen levels and Gleason score differed significantly between the pT2 substages (each p <0.0001). At a median followup of 6.0 years (IQR 3.3-10.1) 2,083 patients had biochemical recurrence, 161 had metastases, 43 had died of prostate cancer and 1,032 had died of another cause. On univariate analysis the pT2 subclassification was significantly associated with biochemical recurrence (p = 0.001) and distant metastasis (p = 0.033) but not with cancer specific death (p = 0.6) or overall mortality (p = 0.3). Multivariable analysis showed no evidence of a significant association between the pT2 subclassification and biochemical recurrence (p = 0.4) or distant metastasis (p = 0.6). Multivariable analysis of cancer specific death and overall mortality was omitted due to lack of significance on univariate analysis. CONCLUSIONS Subclassification of pT2 prostate cancer is not a prognostic indicator of survival related outcomes after radical prostatectomy. Our results validate the elimination of pT2 substages in the updated staging system.
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Affiliation(s)
- Daniel P Nguyen
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Urology, University of Bern, Bern, Switzerland
| | - Emily A Vertosick
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Vidit Sharma
- Department of Urology, Mayo Clinic, Rochester, Minnesota
| | - Renato B Corradi
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Mario Penna Cancer Institute, Belo Horizonte, Brazil
| | - Antoni Vilaseca
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Urology Service, Hospital Clinic de Barcelona, Barcelona, Spain
| | - Toshikazu Takeda
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Keio University School of Medicine, Tokyo, Japan
| | - Daniel D Sjoberg
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nicole Benfante
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Samson W Fine
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York
| | - Victor E Reuter
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York
| | - Peter T Scardino
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York
| | - James A Eastham
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York
| | | | - Karim A Touijer
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York; Weill Cornell Medical College, New York, New York.
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37
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Sollazzo M, Genchi C, Paglia S, Di Giacomo S, Pession A, de Biase D, Grifoni D. High MYC Levels Favour Multifocal Carcinogenesis. Front Genet 2018; 9:612. [PMID: 30619451 PMCID: PMC6297171 DOI: 10.3389/fgene.2018.00612] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 11/20/2018] [Indexed: 02/05/2023] Open
Abstract
The term "field cancerisation" describes the formation of tissue sub-areas highly susceptible to multifocal tumourigenesis. In the earlier stages of cancer, cells may indeed display a series of molecular alterations that allow them to proliferate faster, eventually occupying discrete tissue regions with irrelevant morphological anomalies. This behaviour recalls cell competition, a process based on a reciprocal fitness comparison: when cells with a growth advantage arise in a tissue, they are able to commit wild-type neighbours to death and to proliferate at their expense. It is known that cells expressing high MYC levels behave as super-competitors, able to kill and replace less performant adjacent cells; given MYC upregulation in most human cancers, MYC-mediated cell competition is likely to pioneer field cancerisation. Here we show that MYC overexpression in a sub-territory of the larval wing epithelium of Drosophila is sufficient to trigger a number of cellular responses specific to mammalian pre-malignant tissues. Moreover, following induction of different second mutations, high MYC-expressing epithelia were found to be susceptible to multifocal growth, a hallmark of mammalian pre-cancerous fields. In summary, our study identified an early molecular alteration implicated in field cancerisation and established a genetically amenable model which may help study the molecular basis of early carcinogenesis.
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38
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Abstract
Tumorigenesis begins long before the growth of a clinically detectable lesion and, indeed, even before any of the usual morphological correlates of pre-malignancy are recognizable. Field cancerization, which is the replacement of the normal cell population by a cancer-primed cell population that may show no morphological change, is now recognized to underlie the development of many types of cancer, including the common carcinomas of the lung, colon, skin, prostate and bladder. Field cancerization is the consequence of the evolution of somatic cells in the body that results in cells that carry some but not all phenotypes required for malignancy. Here, we review the evidence of field cancerization across organs and examine the biological mechanisms that drive the evolutionary process that results in field creation. We discuss the clinical implications, principally, how measurements of the cancerized field could improve cancer risk prediction in patients with pre-malignant disease.
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Affiliation(s)
- Kit Curtius
- Centre for Tumour Biology, Barts Cancer Institute, EC1M 6BQ London, UK
| | - Nicholas A Wright
- Centre for Tumour Biology, Barts Cancer Institute, EC1M 6BQ London, UK
| | - Trevor A Graham
- Centre for Tumour Biology, Barts Cancer Institute, EC1M 6BQ London, UK
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39
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Prostate shapes on pre-treatment MRI between prostate cancer patients who do and do not undergo biochemical recurrence are different: Preliminary Findings. Sci Rep 2017; 7:15829. [PMID: 29158516 PMCID: PMC5696460 DOI: 10.1038/s41598-017-13443-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 09/25/2017] [Indexed: 11/29/2022] Open
Abstract
Early identification of PCa patients at risk for biochemical recurrence (BCR) post-therapy will potentially complement definitive therapy with either neo- or adjuvant therapy to improve prognosis. BCR post definitive therapy is often associated with disease progression that might cause a bulge in the prostate gland. In this work we explored if an atlas-based comparison approach reveals shape differences in the prostate capsule as observed on pre-treatment T2-weighted MRI between prostate cancer patients who do (BCR+) and do not (BCR−) have BCR following definitive therapy. A single center IRB approved study included 874 patients. Complete image datasets, clinically localized PCa, availability of Gleason score, data available for post-treatment PSA and follow-up for at least 3 years in patients without BCR were the inclusion criteria to select 77 patients out of the 874 patients. Further controlling for Gleason score, stage, age and to maintain equal number of cases for the BCR+ and BCR− categories, the total number of cases was reduced to 50. Manually segmented prostate capsules were aligned to a BCR− template for statistical comparison between the BCR+ and BCR− groups. Statistically significant shape difference between the two groups was observed towards the lateral and the posterior sides of prostate.
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40
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Lu D, Carlsson J, Penney KL, Davidsson S, Andersson SO, Mucci LA, Valdimarsdóttir U, Andrén O, Fang F, Fall K. Expression and Genetic Variation in Neuroendocrine Signaling Pathways in Lethal and Nonlethal Prostate Cancer among Men Diagnosed with Localized Disease. Cancer Epidemiol Biomarkers Prev 2017; 26:1781-1787. [PMID: 28939587 DOI: 10.1158/1055-9965.epi-17-0453] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/14/2017] [Accepted: 09/12/2017] [Indexed: 11/16/2022] Open
Abstract
Background: Recent data suggest that neuroendocrine signaling pathways may play a role in the progression of prostate cancer, particularly for early-stage disease. We aimed to explore whether expression of selected genes in the adrenergic, serotoninergic, glucocorticoid, and dopaminergic pathways differs in prostate tumor tissue from men with lethal disease compared with men with nonlethal disease.Methods: On the basis of the Swedish Watchful Waiting Cohort, we included 511 men diagnosed with incidental prostate cancer through transurethral resection of the prostate during 1977-1998 with follow-up up to 30 years. For those with tumor tissue (N = 262), we measured mRNA expression of 223 selected genes included in neuroendocrine pathways. Using DNA from normal prostate tissue (N = 396), we genotyped 36 SNPs from 14 receptor genes. Lethal prostate cancer was the primary outcome in analyses with pathway gene expression and genetic variants.Results: Differential expression of genes in the serotoninergic pathway was associated with risk of lethal prostate cancer (P = 0.007); similar but weaker associations were noted for the adrenergic (P = 0.014) and glucocorticoid (P = 0.020) pathways. Variants of the HTR2A (rs2296972; P = 0.002) and NR3CI (rs33388; P = 0.035) genes (within the serotoninergic and glucocorticoid pathways) were associated with lethal cancer in overdominant models. These genetic variants were correlated with expression of several genes in corresponding pathways (P < 0.05).Conclusions: Our findings lend support to hypothesis that the neuroendocrine pathways, particularly serotoninergic pathway, are associated with lethal outcome in the natural course of localized prostate cancer.Impact: This study provides evidence of the role of neuroendocrine pathways in prostate cancer progression that may have clinical utility. Cancer Epidemiol Biomarkers Prev; 26(12); 1781-7. ©2017 AACR.
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Affiliation(s)
- Donghao Lu
- Department of Medical Epidemiology & Biostatistics, Karolinska Institutet, Stockholm, Sweden.
| | - Jessica Carlsson
- Department of Urology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Kathryn L Penney
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.,Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Sabina Davidsson
- Department of Urology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Swen-Olof Andersson
- Department of Urology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Lorelei A Mucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.,Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Unnur Valdimarsdóttir
- Department of Medical Epidemiology & Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.,Faculty of Medicine, Center of Public Health Sciences, School of Health Sciences, University of Iceland, Reykjavík, Iceland
| | - Ove Andrén
- Department of Urology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Fang Fang
- Department of Medical Epidemiology & Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Katja Fall
- Department of Medical Epidemiology & Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, Örebro, Sweden
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41
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Hong SA, Kim KH, Lee TJ, Park ES, Kim MK, Myung SC. A role of human beta defensin-1 in predicting prostatic adenocarcinoma in cases of false-negative biopsy. APMIS 2017; 125:1063-1069. [DOI: 10.1111/apm.12749] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 07/13/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Soon Auck Hong
- Department of Pathology; Soonchunhyang University Cheonan Hospital; Cheonan Korea
| | - Ki Hong Kim
- Department of Urology; Soonchunhyang University Cheonan Hospital; Cheonan Korea
| | - Tae Jin Lee
- Department of Pathology; Chung-Ang University Hospital; Chung-Ang University College of Medicine; Seoul Korea
| | - Eon Sub Park
- Department of Pathology; Chung-Ang University Hospital; Chung-Ang University College of Medicine; Seoul Korea
| | - Mi Kyung Kim
- Department of Pathology; Chung-Ang University Hospital; Chung-Ang University College of Medicine; Seoul Korea
| | - Soon Chul Myung
- Department of Urology; Chung-Ang University Hospital; Chung-Ang University College of Medicine; Seoul Korea
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42
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Strömvall K, Thysell E, Halin Bergström S, Bergh A. Aggressive rat prostate tumors reprogram the benign parts of the prostate and regional lymph nodes prior to metastasis. PLoS One 2017; 12:e0176679. [PMID: 28472073 PMCID: PMC5417597 DOI: 10.1371/journal.pone.0176679] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/14/2017] [Indexed: 12/14/2022] Open
Abstract
In order to grow and spread tumors need to interact with adjacent tissues. We therefore hypothesized that small but aggressive prostate cancers influence the rest of the prostate and regional lymph nodes differently than tumors that are more indolent. Poorly metastatic (Dunning AT1) or highly metastatic (Dunning MLL) rat prostate tumor cells were injected into the ventral prostate lobe of immunocompetent rats. After 10 days—when the tumors occupied about 30% of the prostate lobe and lymph node metastases were undetectable—the global gene expression in tumors, benign parts of the prostate, and regional iliac lymph nodes were examined to define tumor-induced changes related to preparation for future metastasis. The tumors induced profound effects on the gene expression profiles in the benign parts of the prostate and these were strikingly different in the two tumor models. Gene ontology enrichment analysis suggested that tumors with high metastatic capacity were more successful than less metastatic tumors in inducing tumor-promoting changes and suppressing anti-tumor immune responses in the entire prostate. Some of these differences such as altered angiogenesis, nerve density, accumulation of T-cells and macrophages were verified by immunohistochemistry. Gene expression alterations in the regional lymph nodes suggested decreased quantity and activation of immune cells in MLL-lymph nodes that were also verified by immunostaining. In summary, even when small highly metastatic prostate tumors can affect the entire tumor-bearing organ and pre-metastatic lymph nodes differently than less metastatic tumors. When the kinetics of these extratumoral influences (by us named TINT = tumor instructed normal tissue) are more precisely defined they could potentially be used as markers of disease aggressiveness and become therapeutic targets.
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Affiliation(s)
- Kerstin Strömvall
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
- * E-mail:
| | - Elin Thysell
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | | | - Anders Bergh
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
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43
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Wessels D, Lusche DF, Voss E, Kuhl S, Buchele EC, Klemme MR, Russell KB, Ambrose J, Soll BA, Bossler A, Milhem M, Goldman C, Soll DR. Melanoma cells undergo aggressive coalescence in a 3D Matrigel model that is repressed by anti-CD44. PLoS One 2017; 12:e0173400. [PMID: 28264026 PMCID: PMC5338862 DOI: 10.1371/journal.pone.0173400] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 02/20/2017] [Indexed: 12/29/2022] Open
Abstract
Using unique computer-assisted 3D reconstruction software, it was previously demonstrated that tumorigenic cell lines derived from breast tumors, when seeded in a 3D Matrigel model, grew as clonal aggregates which, after approximately 100 hours, underwent coalescence mediated by specialized cells, eventually forming a highly structured large spheroid. Non-tumorigenic cells did not undergo coalescence. Because histological sections of melanomas forming in patients suggest that melanoma cells migrate and coalesce to form tumors, we tested whether they also underwent coalescence in a 3D Matrigel model. Melanoma cells exiting fragments of three independent melanomas or from secondary cultures derived from them, and cells from the melanoma line HTB-66, all underwent coalescence mediated by specialized cells in the 3D model. Normal melanocytes did not. However, coalescence of melanoma cells differed from that of breast-derived tumorigenic cell lines in that they 1) coalesced immediately, 2) underwent coalescence as individual cells as well as aggregates, 3) underwent coalescence far faster and 4) ultimately formed long, flat, fenestrated aggregates that were extremely dynamic. A screen of 51 purified monoclonal antibodies (mAbs) targeting cell surface-associated molecules revealed that two mAbs, anti-beta 1 integrin/(CD29) and anti-CD44, blocked melanoma cell coalescence. They also blocked coalescence of tumorigenic cells derived from a breast tumor. These results add weight to the commonality of coalescence as a characteristic of tumorigenic cells, as well as the usefulness of the 3D Matrigel model and software for both investigating the mechanisms regulating tumorigenesis and screening for potential anti-tumorigenesis mAbs.
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Affiliation(s)
- Deborah Wessels
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Daniel F. Lusche
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Edward Voss
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Spencer Kuhl
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Emma C. Buchele
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Michael R. Klemme
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Kanoe B. Russell
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Joseph Ambrose
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Benjamin A. Soll
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
| | - Aaron Bossler
- Department of Molecular Pathology, University of Iowa Hospitals and Clinics, Iowa City, IA United States of America
| | - Mohammed Milhem
- Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA United States of America
| | - Charles Goldman
- Mercy Hospital System of Des Moines, Des Moines, IA United States of America
| | - David R. Soll
- Developmental Studies Hybridoma Bank, Department of Biology, University of Iowa, Iowa City, IA United States of America
- * E-mail:
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44
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Uhl B, Gevensleben H, Tolkach Y, Sailer V, Majores M, Jung M, Meller S, Stein J, Ellinger J, Dietrich D, Kristiansen G. PITX2 DNA Methylation as Biomarker for Individualized Risk Assessment of Prostate Cancer in Core Biopsies. J Mol Diagn 2017; 19:107-114. [PMID: 27939865 DOI: 10.1016/j.jmoldx.2016.08.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/11/2016] [Accepted: 08/15/2016] [Indexed: 11/19/2022] Open
Abstract
Hypermethylation of the paired-like homeodomain transcription factor 2 (PITX2) gene is a strong predictor of the risk of biochemical recurrence in patients with prostate cancer (PCa) after radical prostatectomy. We investigate whether PITX2 methylation is feasible for individualized risk assessment in prostate core biopsies before surgery. A quantitative, methylation-specific real-time PCR was used to measure PITX2 in three cohorts: i) matched samples of neoplastic and nonneoplastic tissue from 24 patients with PCa, ii) a well-characterized cohort of 300 patients with PCa after radical prostatectomy, and iii) core biopsy specimens from 32 patients with PCa and 31 patients with benign prostatic disease. PITX2 methylation discriminated between neoplastic and nonneoplastic tissue in patients with PCa (P < 0.001). In the second cohort, PITX2 methylation significantly correlated with clinicopathologic parameters, and PITX2 hypermethylation predicted an increased risk of biochemical recurrence in univariate Cox proportional hazards regression analysis (hazard ratio, 1.77; P = 0.046) and Kaplan-Meier analysis (P = 0.043). In 753 prostate biopsies, 720 (95.6%) were applicable for analysis, rendering the assay feasible for diagnostic biopsies. PITX2 methylation was furthermore significantly increased in tumor-positive biopsies and strongly correlated with International Society of Urological Pathology (ISUP) grade groups. This study indicates that the PITX2 methylation assay is feasible in prostate biopsies and might add valuable prognostic information for risk assessment in a presurgical diagnostic setting.
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Affiliation(s)
- Barbara Uhl
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | | | - Yuri Tolkach
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Verena Sailer
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine of Cornell University, New York, New York; Englander Institute for Precision Medicine, Weill Cornell Medicine of Cornell University, New York, New York
| | | | - Maria Jung
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | | | - Johannes Stein
- Institute of Pathology, University Hospital Bonn, Bonn, Germany
| | - Jörg Ellinger
- Department of Urology, University Hospital Bonn, Bonn, Germany
| | - Dimo Dietrich
- Institute of Pathology, University Hospital Bonn, Bonn, Germany; Department of Otolaryngology, Head and Neck Surgery, University Hospital Bonn, Bonn, Germany
| | - Glen Kristiansen
- Institute of Pathology, University Hospital Bonn, Bonn, Germany.
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45
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Lee J, Han JH, Jang A, Kim JW, Hong SA, Myung SC. DNA Methylation-Mediated Downregulation of DEFB1 in Prostate Cancer Cells. PLoS One 2016; 11:e0166664. [PMID: 27835705 PMCID: PMC5105953 DOI: 10.1371/journal.pone.0166664] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/01/2016] [Indexed: 12/18/2022] Open
Abstract
Epigenetic aberrations play crucial roles in prostate cancer (PCa) development and progression. The DEFB1 gene, which encodes human ß-defensin-1 (HBD-1), contributes to innate immune responses and functions as a potential tumor suppressor in urological cancers. We investigated whether differential DNA methylation at the low CpG-content promoter (LCP) of DEFB1 was associated with transcriptional regulation of DEFB1 in PCa cells. To identify distinct CpG loci within the DEFB1 LCP related to the epigenetic regulation of DEFB1, we performed an in vitro methylated reporter assay followed by bisulfite sequencing of the DEFB1 promoter fragment. The methylation status of two adjacent CpG loci in the DEFB1 LCP was found to be important for DEFB1 expression in PCa cells. Paired epithelial specimens of PCa patients (n = 60), which were distinguished as non-tumor and tumor tissues by microdissection, were analyzed by bisulfite pyrosequencing of site-specific CpG dinucleotide units in the DEFB1 LCP. CpG methylation frequencies in the DEFB1 LCP were significantly higher in malignant tissues than in adjacent benign tissues across almost all PCa patients. These results suggested that methylation status of each CpG site in the DEFB1 promoter could mediate downregulation of DEFB1 in PCa cells.
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Affiliation(s)
- Jaehyouk Lee
- Department of Urology, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
- Advanced Urogenital Diseases Research Center, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
- Bio-Integration Research Center for Nutra-Pharmaceutical Epigenetics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jun Hyun Han
- Department of Urology, Hallym University Dongtan Sacred Heart Hospital, Hwaseong-si 18450, Republic of Korea
| | - Ara Jang
- Department of Urology, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
- Advanced Urogenital Diseases Research Center, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
- Bio-Integration Research Center for Nutra-Pharmaceutical Epigenetics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jin Wook Kim
- Bio-Integration Research Center for Nutra-Pharmaceutical Epigenetics, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Soon Auck Hong
- Department of Pathology, Soonchunhyang University College of Medicine, Cheonan 31151, Republic of Korea
| | - Soon Chul Myung
- Department of Urology, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
- Advanced Urogenital Diseases Research Center, Chung-Ang University College of Medicine, Seoul 06974, Republic of Korea
- Bio-Integration Research Center for Nutra-Pharmaceutical Epigenetics, Chung-Ang University, Seoul 06974, Republic of Korea
- * E-mail:
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46
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Hammarsten P, Dahl Scherdin T, Hägglöf C, Andersson P, Wikström P, Stattin P, Egevad L, Granfors T, Bergh A. High Caveolin-1 Expression in Tumor Stroma Is Associated with a Favourable Outcome in Prostate Cancer Patients Managed by Watchful Waiting. PLoS One 2016; 11:e0164016. [PMID: 27764093 PMCID: PMC5072718 DOI: 10.1371/journal.pone.0164016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 09/19/2016] [Indexed: 01/01/2023] Open
Abstract
In the present study we have investigated whether Caveolin-1 expression in non-malignant and malignant prostate tissue is a potential prognostic marker for outcome in prostate cancer patients managed by watchful waiting. Caveolin-1 was measured in prostate tissues obtained through transurethral resection of the prostate from 395 patients diagnosed with prostate cancer. The majority of the patients (n = 298) were followed by watchful waiting after diagnosis. Tissue microarrays constructed from malignant and non-malignant prostate tissue were stained with an antibody against Caveolin-1. The staining pattern was scored and related to clinicopathologic parameters and outcome. Microdissection and qRT-PCR analysis of Cav-1 was done of the prostate stroma from non-malignant tissue and stroma from Gleason 3 and 4 tumors. Cav-1 RNA expression was highest in non-malignant tissue and decreased during cancer progression. High expression of Caveolin-1 in tumor stroma was associated with significantly longer cancer specific survival in prostate cancer patients. This association remained significant when Gleason score and local tumor stage were combined with Caveolin-1 in a Cox regression model. High stromal Caveolin-1 immunoreactivity in prostate tumors is associated with a favourable prognosis in prostate cancer patients managed by watchful waiting. Caveolin-1 could possibly become a useful prognostic marker for prostate cancer patients that are potential candidates for active surveillance.
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Affiliation(s)
- Peter Hammarsten
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
- * E-mail:
| | - Tove Dahl Scherdin
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Christina Hägglöf
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Pernilla Andersson
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Pernilla Wikström
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - Pär Stattin
- Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University, Umeå, Sweden
| | - Lars Egevad
- Department of Pathology and Cytology, Karolinska University Hospital, Stockholm, Sweden
| | | | - Anders Bergh
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
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47
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Ryser MD, Lee WT, Ready NE, Leder KZ, Foo J. Quantifying the Dynamics of Field Cancerization in Tobacco-Related Head and Neck Cancer: A Multiscale Modeling Approach. Cancer Res 2016; 76:7078-7088. [PMID: 27913438 DOI: 10.1158/0008-5472.can-16-1054] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 08/26/2016] [Accepted: 09/19/2016] [Indexed: 01/23/2023]
Abstract
High rates of local recurrence in tobacco-related head and neck squamous cell carcinoma (HNSCC) are commonly attributed to unresected fields of precancerous tissue. Because they are not easily detectable at the time of surgery without additional biopsies, there is a need for noninvasive methods to predict the extent and dynamics of these fields. Here, we developed a spatial stochastic model of tobacco-related HNSCC at the tissue level and calibrated the model using a Bayesian framework and population-level incidence data from the Surveillance, Epidemiology, and End Results (SEER) registry. Probabilistic model analyses were performed to predict the field geometry at time of diagnosis, and model predictions of age-specific recurrence risks were tested against outcome data from SEER. The calibrated models predicted a strong dependence of the local field size on age at diagnosis, with a doubling of the expected field diameter between ages at diagnosis of 50 and 90 years, respectively. Similarly, the probability of harboring multiple, clonally unrelated fields at the time of diagnosis was found to increase substantially with patient age. On the basis of these findings, we hypothesized a higher recurrence risk in older than in younger patients when treated by surgery alone; we successfully tested this hypothesis using age-stratified outcome data. Further clinical studies are needed to validate the model predictions in a patient-specific setting. This work highlights the importance of spatial structure in models of epithelial carcinogenesis and suggests that patient age at diagnosis may be a critical predictor of the size and multiplicity of precancerous lesions. Cancer Res; 76(24); 7078-88. ©2016 AACR.
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Affiliation(s)
- Marc D Ryser
- Duke University, Department of Mathematics, Durham, North Carolina.
| | - Walter T Lee
- Division of Head and Neck Surgery & Communication Sciences, Duke University School of Medicine, Durham, North Carolina.,Section of Otolaryngology-Head and Neck Surgery, Durham VA Medical Center, Durham, North Carolina
| | - Neal E Ready
- Division of Medical Oncology, Duke University School of Medicine, Durham, North Carolina
| | - Kevin Z Leder
- Department of Industrial & Systems Engineering, University of Minnesota, Minneapolis, Minnesota
| | - Jasmine Foo
- School of Mathematics, University of Minnesota, Minneapolis, Minnesota.
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48
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Inflammation and focal atrophy in prostate needle biopsy cores and association to prostatic adenocarcinoma. Ann Diagn Pathol 2016; 24:55-61. [DOI: 10.1016/j.anndiagpath.2016.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 01/16/2016] [Accepted: 04/25/2016] [Indexed: 11/23/2022]
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49
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Zhang Z, Garzotto M, Beer TM, Thuillier P, Lieberman S, Mori M, Stoller WA, Farris PE, Shannon J. Effects of ω-3 Fatty Acids and Catechins on Fatty Acid Synthase in the Prostate: A Randomized Controlled Trial. Nutr Cancer 2016; 68:1309-1319. [PMID: 27646578 DOI: 10.1080/01635581.2016.1224365] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Animal and human studies suggest fish oil and green tea may have protective effect on prostate cancer. Fatty acid synthase (FAS) has been hypothesized to be linked to chemoprotective effects of both compounds. This study evaluated the independent and joint effects of fish oil (FO) and green tea supplement (epigallocatechin-3-gallate, EGCG) on FAS and Ki-67 levels in prostate tissue. Through a double-blinded, randomized controlled trial with 2 × 2 factorial design, 89 men scheduled for repeat prostate biopsy following an initial negative prostate biopsy were randomized into either FO alone (1.9 g DHA + EPA/day), EGCG alone (600 mg/day), a combination of FO and EGCG, or placebo. We used linear mixed-effects models to test the differences of prostate tissue FAS and Ki-67 by immunohistochemistry between pre- and post-intervention within each group, as well as between treatment groups. Results did not show significant difference among treatment groups in pre-to-post-intervention changes of FAS (P = 0.69) or Ki-67 (P = 0.26). Comparing placebo group with any of the treatment groups, we did not find significant difference in FAS or Ki-67 changes (all P > 0.05). Results indicate FO or EGCG supplementation for a short duration may not be sufficient to produce biologically meaningful changes in FAS or Ki-67 levels in prostate tissue.
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Affiliation(s)
- Zhenzhen Zhang
- a OHSU-PSU School of Public Health, Oregon Health and Science University , Portland , Oregon , USA
| | - Mark Garzotto
- b Department of Urology , Portland Veterans Administration Medical Center, Oregon Health and Science University , Portland , Oregon , USA
| | - Tomasz M Beer
- c Knight Cancer Institute, Oregon Health and Science University , Portland , Oregon , USA
| | - Philippe Thuillier
- a OHSU-PSU School of Public Health, Oregon Health and Science University , Portland , Oregon , USA.,c Knight Cancer Institute, Oregon Health and Science University , Portland , Oregon , USA.,d Department of Dermatology , Oregon Health and Science University , Portland , Oregon , USA
| | - Stephen Lieberman
- e Department of Urology , Kaiser Permanente Northwest , Clackamas , Oregon , USA
| | - Motomi Mori
- a OHSU-PSU School of Public Health, Oregon Health and Science University , Portland , Oregon , USA.,c Knight Cancer Institute, Oregon Health and Science University , Portland , Oregon , USA
| | - Wesley A Stoller
- a OHSU-PSU School of Public Health, Oregon Health and Science University , Portland , Oregon , USA
| | - Paige E Farris
- a OHSU-PSU School of Public Health, Oregon Health and Science University , Portland , Oregon , USA
| | - Jackilen Shannon
- a OHSU-PSU School of Public Health, Oregon Health and Science University , Portland , Oregon , USA
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50
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Dong N, Shi L, Wang DC, Chen C, Wang X. Role of epigenetics in lung cancer heterogeneity and clinical implication. Semin Cell Dev Biol 2016; 64:18-25. [PMID: 27575638 DOI: 10.1016/j.semcdb.2016.08.029] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Accepted: 08/24/2016] [Indexed: 12/15/2022]
Abstract
Lung cancer, as a highly heterogeneous disease, can be initiated and progressed through the interaction between permanent genetic mutations and dynamic epigenetic alterations. However, the mediating mechanisms of epigenetics in cancer heterogeneity remain unclear. The evolution of cancer, the existence of cancer stem cells (CSCs) and the phenomenon of epithelial-mesenchymal transition (EMT) have been reported to be involved in lung cancer heterogeneity. In this review, we briefly recap the definition of heterogeneity and concept of epigenetics, highlight the potential roles and mechanisms of epigenetic regulation in heterogeneity of lung cancer, and summarize the diagnostic and therapeutic implications of epigenetic alterations in lung cancer, especially the role of DNA methylation and histone acetylation. Deep understanding of epigenetic regulation in cancer heterogeneity is instrumental to the design of novel therapeutic approaches that target lung cancer.
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Affiliation(s)
- Nian Dong
- Department of Pulmonary Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China
| | - Lin Shi
- Zhongshan Hospital, Shanghai Institute of Clinical Bioinformatics, Fudan University Center for Clinical Bioinformatics; Zhongshan Hospital Institute of Clinical Science of Fudan University, Shanghai, China
| | - Diane C Wang
- Department of Pulmonary Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China
| | - Chengshui Chen
- Department of Pulmonary Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China.
| | - Xiangdong Wang
- Department of Pulmonary Medicine, The First affiliated Hospital, Wenzhou Medical University, Wenzhou, 325000, China; Zhongshan Hospital, Shanghai Institute of Clinical Bioinformatics, Fudan University Center for Clinical Bioinformatics; Zhongshan Hospital Institute of Clinical Science of Fudan University, Shanghai, China.
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