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Khoo A, Govindarajan M, Qiu Z, Liu LY, Ignatchenko V, Waas M, Macklin A, Keszei A, Neu S, Main BP, Yang L, Lance RS, Downes MR, Semmes OJ, Vesprini D, Liu SK, Nyalwidhe JO, Boutros PC, Kislinger T. Prostate cancer reshapes the secreted and extracellular vesicle urinary proteomes. Nat Commun 2024; 15:5069. [PMID: 38871730 PMCID: PMC11176296 DOI: 10.1038/s41467-024-49424-5] [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: 08/24/2023] [Accepted: 05/31/2024] [Indexed: 06/15/2024] Open
Abstract
Urine is a complex biofluid that reflects both overall physiologic state and the state of the genitourinary tissues through which it passes. It contains both secreted proteins and proteins encapsulated in tissue-derived extracellular vesicles (EVs). To understand the population variability and clinical utility of urine, we quantified the secreted and EV proteomes from 190 men, including a subset with prostate cancer. We demonstrate that a simple protocol enriches prostatic proteins in urine. Secreted and EV proteins arise from different subcellular compartments. Urinary EVs are faithful surrogates of tissue proteomes, but secreted proteins in urine or cell line EVs are not. The urinary proteome is longitudinally stable over several years. It can accurately and non-invasively distinguish malignant from benign prostatic lesions and can risk-stratify prostate tumors. This resource quantifies the complexity of the urinary proteome and reveals the synergistic value of secreted and EV proteomes for translational and biomarker studies.
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Affiliation(s)
- Amanda Khoo
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada
| | - Meinusha Govindarajan
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada
| | - Zhuyu Qiu
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90024, USA
- Department of Human Genetics, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Urology, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Institute for Precision Health, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Lydia Y Liu
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90024, USA
- Department of Human Genetics, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Urology, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Institute for Precision Health, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Vladimir Ignatchenko
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada
| | - Matthew Waas
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada
| | - Andrew Macklin
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada
| | - Alexander Keszei
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada
| | - Sarah Neu
- Division of Surgery, Urology, Sunnybrook Health Sciences Centre, Toronto, ON, M4N 3M5, Canada
| | - Brian P Main
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
| | - Lifang Yang
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
| | | | - Michelle R Downes
- Division of Anatomic Pathology, Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, Toronto, ON, M4N 3M5, Canada
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - O John Semmes
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
| | - Danny Vesprini
- Department of Radiation Oncology, University of Toronto, Toronto, ON, M5T 1P5, Canada
- Odette Cancer Research Program, Sunnybrook Research Institute, Toronto, ON, M4N 3M5, Canada
| | - Stanley K Liu
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, ON, M5T 1P5, Canada
- Odette Cancer Research Program, Sunnybrook Research Institute, Toronto, ON, M4N 3M5, Canada
| | - Julius O Nyalwidhe
- Leroy T. Canoles Jr. Cancer Research Center, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
- Department of Microbiology and Molecular Cell Biology, Eastern Virginia Medical School, Norfolk, VA, 23507, USA
| | - Paul C Boutros
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada.
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90024, USA.
- Department of Human Genetics, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
- Department of Urology, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
- Institute for Precision Health, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA.
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, M5S 1A8, Canada.
- Broad Stem Cell Research Center, University of California, Los Angeles, CA, 90095, USA.
| | - Thomas Kislinger
- Department of Medical Biophysics, University of Toronto, Toronto, ON, M5G 1L7, Canada.
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, M5G 2C1, Canada.
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Joshi N, Garapati K, Ghose V, Kandasamy RK, Pandey A. Recent progress in mass spectrometry-based urinary proteomics. Clin Proteomics 2024; 21:14. [PMID: 38389064 PMCID: PMC10885485 DOI: 10.1186/s12014-024-09462-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/12/2024] [Indexed: 02/24/2024] Open
Abstract
Serum or plasma is frequently utilized in biomedical research; however, its application is impeded by the requirement for invasive sample collection. The non-invasive nature of urine collection makes it an attractive alternative for disease characterization and biomarker discovery. Mass spectrometry-based protein profiling of urine has led to the discovery of several disease-associated biomarkers. Proteomic analysis of urine has not only been applied to disorders of the kidney and urinary bladder but also to conditions affecting distant organs because proteins excreted in the urine originate from multiple organs. This review provides a progress update on urinary proteomics carried out over the past decade. Studies summarized in this review have expanded the catalog of proteins detected in the urine in a variety of clinical conditions. The wide range of applications of urine analysis-from characterizing diseases to discovering predictive, diagnostic and prognostic markers-continues to drive investigations of the urinary proteome.
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Affiliation(s)
- Neha Joshi
- Manipal Academy of Higher Education (MAHE), Manipal, 576104, India
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Kishore Garapati
- Manipal Academy of Higher Education (MAHE), Manipal, 576104, India
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Vivek Ghose
- Manipal Academy of Higher Education (MAHE), Manipal, 576104, India
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India
| | - Richard K Kandasamy
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, 55905, USA
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Akhilesh Pandey
- Institute of Bioinformatics, International Technology Park, Bangalore, 560066, India.
- Department of Laboratory Medicine and Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, 55905, USA.
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN, 55905, USA.
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3
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Diaz PM, Leehans A, Ravishankar P, Daily A. Multiomic Approaches for Cancer Biomarker Discovery in Liquid Biopsies: Advances and Challenges. Biomark Insights 2023; 18:11772719231204508. [PMID: 37846373 PMCID: PMC10576933 DOI: 10.1177/11772719231204508] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/12/2023] [Indexed: 10/18/2023] Open
Abstract
Cancer is a complex and heterogeneous disease that poses a significant threat to global health. Early diagnosis and treatment are critical for improving patient outcomes, and the use of liquid biopsies has emerged as a promising approach for cancer detection and monitoring. Traditionally, cancer diagnosis has relied on invasive tissue biopsies, the collection of which can prove challenging for patients and the results of which may not always provide accurate results due to tumor heterogeneity. Liquid biopsies have gained increasing attention as they provide a non-invasive and accessible source of cancer biomarkers, which can be used to diagnose cancer, monitor treatment response, and detect relapse. The integration of -omics technologies, such as proteomics, genomics, and metabolomics, has further enhanced the capabilities of liquid biopsies by introducing precision oncology and enabling the tailoring of treatment for individual patients based on their unique tumor biology. In this review, we will discuss the challenges and advances in the field of cancer liquid biopsies and the integration of -omics technologies for different types of liquid biopsies, including blood, tear, urine, sweat, saliva, and cerebrospinal fluid.
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Affiliation(s)
- Paola Monterroso Diaz
- Namida Lab Inc., Fayetteville, AR, USA
- University of Arkansas, Department of Biomedical Engineering, Fayetteville, AR, USA
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Sequeira-Antunes B, Ferreira HA. Urinary Biomarkers and Point-of-Care Urinalysis Devices for Early Diagnosis and Management of Disease: A Review. Biomedicines 2023; 11:biomedicines11041051. [PMID: 37189669 DOI: 10.3390/biomedicines11041051] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/10/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Biosensing and microfluidics technologies are transforming diagnostic medicine by accurately detecting biomolecules in biological samples. Urine is a promising biological fluid for diagnostics due to its noninvasive collection and wide range of diagnostic biomarkers. Point-of-care urinalysis, which integrates biosensing and microfluidics, has the potential to bring affordable and rapid diagnostics into the home to continuing monitoring, but challenges still remain. As such, this review aims to provide an overview of biomarkers that are or could be used to diagnose and monitor diseases, including cancer, cardiovascular diseases, kidney diseases, and neurodegenerative disorders, such as Alzheimer’s disease. Additionally, the different materials and techniques for the fabrication of microfluidic structures along with the biosensing technologies often used to detect and quantify biological molecules and organisms are reviewed. Ultimately, this review discusses the current state of point-of-care urinalysis devices and highlights the potential of these technologies to improve patient outcomes. Traditional point-of-care urinalysis devices require the manual collection of urine, which may be unpleasant, cumbersome, or prone to errors. To overcome this issue, the toilet itself can be used as an alternative specimen collection and urinalysis device. This review then presents several smart toilet systems and incorporated sanitary devices for this purpose.
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Tekin B, Dasari S, Theis JD, Vrana JA, Murray DL, Oglesbee D, Thompson RH, Leibovich BC, Boorjian SA, Whaley RD, Hernandez LH, Jimenez RE, Cheville JC, Karnes RJ, Sukov WR, Gupta S. Mass Spectrometry-Based Assessment of Prostate Cancer-Associated Crystalloids Reveals Enrichment for Growth & Differentiation Factor 15 (GDF15). Hum Pathol 2023; 135:35-44. [PMID: 36906183 DOI: 10.1016/j.humpath.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
Intraluminal crystalloids are a common finding within malignant prostatic acini and are infrequently identified within benign glands. The proteomic composition of these crystalloids remains poorly understood and may provide insight regarding prostate cancer pathogenesis. Laser microdissection assisted liquid chromatography tandem mass spectrometry (LMD-LC-MS/MS) was performed to compare proteomic composition of corpora amylacea within benign acini (n=9), prostatic adenocarcinoma-associated crystalloids (n=8), benign (n=8), and malignant prostatic acini (n=6). The expression of candidate biomarkers was then measured in urine specimens from patients with (n=8) and without prostate cancer (n=10) using ELISA; and immunohistochemistry-based expression in adjacent prostate cancer and benign glands was assessed in 56 whole-slide sections from radical prostatectomy specimens. LMD-LC-MS/MS revealed enrichment for the C-terminal portion of growth and differentiation factor 15 (GDF15) in prostatic crystalloids. Although urinary GDF15 levels were higher in patients with prostatic adenocarcinoma compared to those without (median: 1561.2 vs 1101.3, arbitrary units), this did not meet statistical significance (p=0.07). Immunohistochemistry for GDF15 revealed occasional positivity in benign glands (median H-score: 30, n=56), and diffuse positivity in prostatic adenocarcinoma (median H-score: 200, n=56, p<0.0001). No significant difference was identified within different prognostic grade groups of prostatic adenocarcinoma, or within malignant glands with large cribriform morphology. Our results show that the C-terminal portion of GDF15 is enriched in prostate cancer-associated crystalloids, and higher GDF15 expression is seen in malignant rather than benign prostatic acini. Improved understanding of the proteomic composition of prostate cancer-associated crystalloids provides the rationale for evaluating GDF15 as a urine-based biomarker of prostate cancer.
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Affiliation(s)
- Burak Tekin
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Surendra Dasari
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
| | - Jason D Theis
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Julie A Vrana
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - David L Murray
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Devin Oglesbee
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | | | | | | | - Rumeal D Whaley
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | | | - Rafael E Jimenez
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - John C Cheville
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | | | - William R Sukov
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Sounak Gupta
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
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Flora FC, Relvas SB, Silva FAE, Freire MG, Chu V, Conde JP. Combined Use of Ionic Liquid-Based Aqueous Biphasic Systems and Microfluidic Devices for the Detection of Prostate-Specific Antigen. BIOSENSORS 2023; 13:334. [PMID: 36979546 PMCID: PMC10046584 DOI: 10.3390/bios13030334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Prostate cancer (PCa) is one of the cancer types that most affects males worldwide and is among the highest contributors to cancer mortality rates. Therefore, there is an urgent need to find strategies to improve the diagnosis of PCa. Microtechnologies have been gaining ground in biomedical devices, with microfluidics and lab-on-chip systems potentially revolutionizing medical diagnostics. In this paper, it is shown that prostate-specific antigen (PSA) can be detected through an immunoassay performed in a microbead-based microfluidic device after being extracted and purified from a serum sample through an aqueous biphasic system (ABS). Given their well-established status as ABS components for successful bioseparations, ionic liquids (ILs) and polymers were used in combination with buffered salts. Using both IL-based and polymer-based ABS, it was demonstrated that it is possible to detect PSA in non-physiological environments. It was concluded that the ABS that performed better in extracting the PSA from serum were those composed of tetrabutylammonium chloride ([N4444]Cl) and tetrabutylphosphonium bromide ([P4444]Br), both combined with phosphate buffer, and constituted by polyethylene glycol with a molecular weight of 1000 g/mol (PEG1000) with citrate buffer. In comparison with the assay with PSA prepared in phosphate-buffered saline (PBS) or human serum in which no ABS-mediated extraction was applied, assays attained lower limits of detection after IL-based ABS-mediated extraction. These results reinforce the potential of this method in future point-of-care (PoC) measurements.
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Affiliation(s)
- Filipa C. Flora
- Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias (INESC MN), 1000-029 Lisbon, Portugal
| | - Sofia B. Relvas
- Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias (INESC MN), 1000-029 Lisbon, Portugal
| | - Francisca A. e Silva
- CICECO—Instituto de Materiais de Aveiro, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Mara G. Freire
- CICECO—Instituto de Materiais de Aveiro, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Virginia Chu
- Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias (INESC MN), 1000-029 Lisbon, Portugal
| | - João Pedro Conde
- Instituto de Engenharia de Sistemas e Computadores-Microsistemas e Nanotecnologias (INESC MN), 1000-029 Lisbon, Portugal
- Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
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Krishnan S, Kanthaje S, Punchappady DR, Mujeeburahiman M, Ratnacaram CK. Circulating metabolite biomarkers: a game changer in the human prostate cancer diagnosis. J Cancer Res Clin Oncol 2023; 149:951-967. [PMID: 35764700 DOI: 10.1007/s00432-022-04113-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/06/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE Prostate cancer (PCa) is the second most commonly diagnosed cancer in men in Western and Asian countries. Serum prostate-specific antigen (PSA) test has been the routine diagnostic method despite the tremendous research in diagnostic markers for early detection of PCa. A shift towards a promising and potential biomarker for PCa detection is through metabolomic profiling of biofluids, particularly the blood and urine samples. Finding reliable, routinely usable circulating metabolite biomarkers may not be a distant reality. METHODS We performed a PubMed-based literature search of metabolite biomarkers in blood and urine for the early detection of prostate cancer. The timeline of these searches was limited between 2007 and 2022 and the following keywords were used: 'metabolomics', 'liquid biopsy', 'circulating metabolites', 'serum metabolite', 'plasma metabolite', and 'urine metabolite' with respect to 'prostate cancer'. We focussed only on diagnosis-based studies with only the subject-relevant articles published in the English language and excluded all of the other irrelevant publications that included prostate tissue biomarkers and cell line biomarkers. RESULTS We have consolidated all the blood and urine-based potential metabolite candidates in individual as well as panels, including lipid classes, fatty acids, amino acids, and volatile organic compounds which may become useful for PCa diagnosis. CONCLUSION All these metabolome findings unveil the impact of different dimensions of PCa development, giving a promising strategy to diagnose the disease since suspected individuals can be subjected to repeated and largescale blood and urine testing.
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Affiliation(s)
- Sabareeswaran Krishnan
- Yenepoya Research Centre, Yenepoya (Deemed to Be University), University Road, Deralakatte, Mangaluru, 575018, Karnataka, India
- Department of Urology, Yenepoya Medical College Hospital, Deralakatte, Mangaluru, 575018, Karnataka, India
| | - Shruthi Kanthaje
- Yenepoya Research Centre, Yenepoya (Deemed to Be University), University Road, Deralakatte, Mangaluru, 575018, Karnataka, India
| | - Devasya Rekha Punchappady
- Yenepoya Research Centre, Yenepoya (Deemed to Be University), University Road, Deralakatte, Mangaluru, 575018, Karnataka, India
| | - M Mujeeburahiman
- Department of Urology, Yenepoya Medical College Hospital, Deralakatte, Mangaluru, 575018, Karnataka, India.
| | - Chandrahas Koumar Ratnacaram
- Yenepoya Research Centre, Yenepoya (Deemed to Be University), University Road, Deralakatte, Mangaluru, 575018, Karnataka, India.
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Wang Y, Gao Y, Song Y. Microfluidics-Based Urine Biopsy for Cancer Diagnosis: Recent Advances and Future Trends. ChemMedChem 2022; 17:e202200422. [PMID: 36040297 DOI: 10.1002/cmdc.202200422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/23/2022] [Indexed: 11/08/2022]
Abstract
Urine biopsy, allowing for the detection, analysis and monitoring of numerous cancer-associated urinary biomarkers to provide insights into cancer occurrence, progression and metastasis, has emerged as an attractive liquid biopsy strategy with enormous advantages over traditional tissue biopsy, such as noninvasiveness, large sample volume, and simple sampling operation. Microfluidics enables precise manipulation of fluids in a tiny chip and exhibits outstanding performance in urine biopsy owing to its minimization, low cost, high integration, high throughput and low sample consumption. Herein, we review recent advances in microfluidic techniques employed in urine biopsy for cancer detection. After briefly summarizing the major urinary biomarkers used for cancer diagnosis, we provide an overview of the typical microfluidic techniques utilized to develop urine biopsy devices. Some prospects along with the major challenges to be addressed for the future of microfluidic-based urine biopsy are also discussed.
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Affiliation(s)
- Yanping Wang
- Nanjing University of Science and Technology, Sino-French Engineer School, CHINA
| | - Yanfeng Gao
- Nanjing University, College of Engineering and Applied Sciences, CHINA
| | - Yujun Song
- Nanjing University, Biomedical Engineering, 22 Hankou Road, 210093, Nanjing, CHINA
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Reider B, Gacsi E, Jankovics H, Vonderviszt F, Szarvas T, Guttman A, Jarvas G. Integrated workflow for urinary prostate specific antigen N-glycosylation analysis using sdAb partitioning and downstream capillary electrophoresis separation. Anal Chim Acta 2021; 1184:338892. [PMID: 34625256 DOI: 10.1016/j.aca.2021.338892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/09/2021] [Accepted: 07/25/2021] [Indexed: 11/27/2022]
Abstract
Prostate cancer represents the second highest malignancy rate in men in all cancer diagnoses worldwide. The development and progression of prostate cancer is not completely understood yet at molecular level, but it has been reported that changes in the N-glycosylation of prostate-specific antigen (PSA) occur during tumor genesis. In this paper we report on the development and implementation of a high-throughput capillary electrophoresis based glycan analysis workflow for urinary PSA analysis. The technology utilizes selective, high yield single domain antibody based PSA capture, followed by preconcentration and capillary electrophoresis coupled with laser-induced fluorescence detection, resulting in high resolution N-glycan profiles. Urinary PSA glycan profiles were compared to a commercially available PSA standard revealing differences in their α2,3- and α2,6-sialylated isomers, proving the excellent selectivity of the suggested workflow. This is important as sialylation classification plays an important role in the differentiation between indolent, significant and aggressive forms of prostate cancer.
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Affiliation(s)
- Balazs Reider
- Translational Glycomics Research Group, Research Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Veszprem, Hungary
| | - Eszter Gacsi
- Bio-Nanosystems Laboratory, Research Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Veszprem, Hungary
| | - Hajnalka Jankovics
- Bio-Nanosystems Laboratory, Research Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Veszprem, Hungary
| | - Ferenc Vonderviszt
- Bio-Nanosystems Laboratory, Research Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Veszprem, Hungary
| | - Tibor Szarvas
- Department of Urology, Semmelweis University, Budapest, Hungary; Department of Urology, University of Duisburg-Essen, Essen, Germany
| | - Andras Guttman
- Translational Glycomics Research Group, Research Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Veszprem, Hungary; Horváth Csaba Memorial Laboratory of Bioseparation Sciences, Research Centre for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gabor Jarvas
- Translational Glycomics Research Group, Research Institute of Biomolecular and Chemical Engineering, Faculty of Engineering, University of Pannonia, Veszprem, Hungary; Horváth Csaba Memorial Laboratory of Bioseparation Sciences, Research Centre for Molecular Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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10
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Low Levels of Urinary PSA Better Identify Prostate Cancer Patients. Cancers (Basel) 2021; 13:cancers13143570. [PMID: 34298784 PMCID: PMC8303247 DOI: 10.3390/cancers13143570] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 01/08/2023] Open
Abstract
Simple Summary Elevated PSA levels in blood tests are the gold standard for early prostate cancer detection, but its lack of specificity limits its clinical use as a mass screening test. The paradox is that it has long been known that advanced prostate cancers can lose PSA expression. We have observed that in the presence of tumors, the prostate produces and secretes less PSA than in healthy or benign conditions. Therefore, the PSA evaluation in urine provided more accurate information on the presence of prostate tumors than the blood test, representing a new method for the screening of prostate cancer. Abstract Serum prostatic specific antigen (PSA) has proven to have limited accuracy in early diagnosis and in making clinical decisions about different therapies for prostate cancer (PCa). This is partially due to the fact that an increase in PSA in the blood is due to the compromised architecture of the prostate, which is only observed in advanced cancer. On the contrary, PSA observed in the urine (uPSA) reflects the quantity produced by the prostate, and therefore can give more information about the presence of disease. We enrolled 574 men scheduled for prostate biopsy at the urology clinic, and levels of uPSA were evaluated. uPSA levels resulted lower among subjects with PCa when compared to patients with negative biopsies. An indirect correlation was observed between uPSA amount and the stage of disease. Loss of expression of PSA appears as a characteristic of prostate cancer development and its evaluation in urine represents an interesting approach for the early detection of the disease and the stratification of patients.
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Shahbazi Toloun SS, Pishkar L. Study of the prostate-specific antigen–aptamer stability in the PSA–aptamer-single wall carbon nanotube assembly by docking and molecular dynamics simulation. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1932874] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Leila Pishkar
- Department of Biology, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
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12
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Swensen AC, He J, Fang AC, Ye Y, Nicora CD, Shi T, Liu AY, Sigdel TK, Sarwal MM, Qian WJ. A Comprehensive Urine Proteome Database Generated From Patients With Various Renal Conditions and Prostate Cancer. Front Med (Lausanne) 2021; 8:548212. [PMID: 33928097 PMCID: PMC8076675 DOI: 10.3389/fmed.2021.548212] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 03/18/2021] [Indexed: 01/10/2023] Open
Abstract
Urine proteins can serve as viable biomarkers for diagnosing and monitoring various diseases. A comprehensive urine proteome database, generated from a variety of urine samples with different disease conditions, can serve as a reference resource for facilitating discovery of potential urine protein biomarkers. Herein, we present a urine proteome database generated from multiple datasets using 2D LC-MS/MS proteome profiling of urine samples from healthy individuals (HI), renal transplant patients with acute rejection (AR) and stable graft (STA), patients with non-specific proteinuria (NS), and patients with prostate cancer (PC). A total of ~28,000 unique peptides spanning ~2,200 unique proteins were identified with a false discovery rate of <0.5% at the protein level. Over one third of the annotated proteins were plasma membrane proteins and another one third were extracellular proteins according to gene ontology analysis. Ingenuity Pathway Analysis of these proteins revealed 349 potential biomarkers in the literature-curated database. Forty-three percentage of all known cluster of differentiation (CD) proteins were identified in the various human urine samples. Interestingly, following comparisons with five recently published urine proteome profiling studies, which applied similar approaches, there are still ~400 proteins which are unique to this current study. These may represent potential disease-associated proteins. Among them, several proteins such as serpin B3, renin receptor, and periostin have been reported as pathological markers for renal failure and prostate cancer, respectively. Taken together, our data should provide valuable information for future discovery and validation studies of urine protein biomarkers for various diseases.
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Affiliation(s)
- Adam C Swensen
- Integrative Omics, Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States
| | - Jingtang He
- Integrative Omics, Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States
| | - Alexander C Fang
- Integrative Omics, Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States
| | - Yinyin Ye
- Integrative Omics, Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States
| | - Carrie D Nicora
- Integrative Omics, Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States
| | - Tujin Shi
- Integrative Omics, Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States
| | - Alvin Y Liu
- Department of Urology, University of Washington, Seattle, WA, United States
| | - Tara K Sigdel
- Department of Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Minnie M Sarwal
- Department of Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Wei-Jun Qian
- Integrative Omics, Pacific Northwest National Laboratory, Biological Sciences Division, Richland, WA, United States
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13
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Cimmino I, Bravaccini S, Cerchione C. Urinary Biomarkers in Tumors: An Overview. Methods Mol Biol 2021; 2292:3-15. [PMID: 33651347 DOI: 10.1007/978-1-0716-1354-2_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Recent reports suggest that urine is a useful noninvasive tool for the identification of urogenital tumors, including bladder, prostate, kidney, and other nonurological cancers. As a liquid biopsy, urine represents an important source for the improvement of new promising biomarkers, a suitable tool to identify indolent cancer and avoid overtreatment. Urine is enriched with DNAs, RNAs, proteins, circulating tumor cells, exosomes, and other small molecules which can be detected with several diagnostic methodologies.We provide an overview of the ongoing state of urinary biomarkers underlying both their potential utilities to improve cancer prognosis, diagnosis, and therapeutic strategy and their limitations.
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Affiliation(s)
- Ilaria Cimmino
- Department of Translational Medicine, University of Naples "Federico II", Naples, Italy
| | - Sara Bravaccini
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Claudio Cerchione
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy.
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14
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Zemskova MY, Marinets MV, Sivkov AV, Pavlova JV, Shibaev AN, Sorokin KS. Integrin Alpha V in Urine: A Novel Noninvasive Marker for Prostate Cancer Detection. Front Oncol 2021; 10:610647. [PMID: 33791193 PMCID: PMC8006463 DOI: 10.3389/fonc.2020.610647] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 12/31/2020] [Indexed: 11/20/2022] Open
Abstract
Prostate cancer (PCa) diagnosis based on patient urine analysis provides non-invasive and promising method as compared to biopsy and a prostate-specific antigen (PSA) test. This study was conceived to investigate whether Integrin alpha V (ITGAV) protein is present in urine and assess the urinary ITGAV diagnostic potential for PCa. Materials and Methods: Urinary ITGAV expression was determined by Western blot analysis and quantified by ELISA in urine from men with PCa (n = 47), benign prostate hyperplasia (n = 42) and age-matched controls (n = 22). Results: The level of ITGAV protein was significantly lower in PCa urine samples as compared to those in the control group (p < 0.00001). The decrease of ITGAV in urine was highly predictive of PCa with 91.5% sensitivity, 91.4% specificity, 0.93 area under the ROC curve, and its specificity was better than that of serum PSA. Conclusion: Urinary ITGAV provides a novel noninvasive biomarker with high specificity.
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Affiliation(s)
- Marina Y Zemskova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Research Center, Pushchino Center for Biological Research of the Russian Academy of Sciences, Pushchino, Russia.,Department of the Research, Prostagnost LLC, Moscow, Russia
| | - Maria V Marinets
- N.A. Lopatkin Research Institute of Urology and Interventional Radiology, Branch of FSBI National Medical Research Radiological Center, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Andrey V Sivkov
- N.A. Lopatkin Research Institute of Urology and Interventional Radiology, Branch of FSBI National Medical Research Radiological Center, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Julia V Pavlova
- Department of Urology, M.F. Vladimirsky Moscow Regional Research and Clinical Institute (MONIKI), Moscow, Russia
| | - Andrey N Shibaev
- Department of Urology, M.F. Vladimirsky Moscow Regional Research and Clinical Institute (MONIKI), Moscow, Russia
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15
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Moran AB, Domínguez-Vega E, Nouta J, Pongracz T, de Reijke TM, Wuhrer M, Lageveen-Kammeijer GSM. Profiling the proteoforms of urinary prostate-specific antigen by capillary electrophoresis - mass spectrometry. J Proteomics 2021; 238:104148. [PMID: 33618028 DOI: 10.1016/j.jprot.2021.104148] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/26/2021] [Accepted: 01/31/2021] [Indexed: 01/07/2023]
Abstract
Early detection of prostate cancer may lead to the overdiagnosis and overtreatment of patients as well as missing significant cancers. The current diagnostic approach uses elevated serum concentrations of prostate-specific antigen (PSA) as an indicator of risk. However, this test has been widely criticized as it shows poor specificity and sensitivity. In order to improve early detection and diagnosis, several studies have investigated whether different PSA proteoforms are correlated to prostate cancer. Until now, studies and methodologies for the comprehensive characterization of PSA proteoforms from biofluids are scarce. For this purpose, we developed an intact protein assay to analyze PSA by capillary electrophoresis-electrospray ionization-mass spectrometry after affinity purification from patients' urine. Here, we determined six proteolytic cleavage variants. In regard to glycosylation, tri-, di-, mono- and non-sialylated complex-type N-glycans were found on non-cleaved PSA, as well as the non-glycosylated variant. The performance of the intact protein assay was assessed using a pooled sample, obtaining an inter-day variability of 15%. Furthermore, urinary patient samples were analyzed by intact protein analysis and a bottom-up approach (glycopeptide analysis). This combined approach revealed complimentary information on both levels, demonstrating the benefit of using two orthogonal techniques to provide a thorough profile of urinary PSA. SIGNIFICANCE: The detection of clinically relevant prostate cancer requires a more specific and sensitive biomarker and, in this case, several PSA proteoforms may be able to aid or improve the current PSA test. However, a comprehensive analysis of the intact PSA proteoform profile is still lacking. This study investigated the PSA proteoforms present in urine and, in particular, determined the relative contribution of cleaved PSA and non-cleaved PSA forms to the total glycosylation profile. Importantly, intact protein analysis did not require further sample treatment before being measured by CE-ESI-MS. Furthermore, its glycosylation was also assessed in a bottom-up approach to provide complementary information. Overall, these results represent an important basis for future characterization and biomarker studies.
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Affiliation(s)
- Alan B Moran
- Leiden University Medical Center, Center for Proteomics and Metabolomics, 2300 RC Leiden, the Netherlands
| | - Elena Domínguez-Vega
- Leiden University Medical Center, Center for Proteomics and Metabolomics, 2300 RC Leiden, the Netherlands
| | - Jan Nouta
- Leiden University Medical Center, Center for Proteomics and Metabolomics, 2300 RC Leiden, the Netherlands
| | - Tamas Pongracz
- Leiden University Medical Center, Center for Proteomics and Metabolomics, 2300 RC Leiden, the Netherlands
| | - Theo M de Reijke
- Amsterdam UMC, location Academic Medical Center, Department of Urology, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - Manfred Wuhrer
- Leiden University Medical Center, Center for Proteomics and Metabolomics, 2300 RC Leiden, the Netherlands
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16
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Dowlatshahi S, Abdekhodaie MJ. Electrochemical prostate-specific antigen biosensors based on electroconductive nanomaterials and polymers. Clin Chim Acta 2021; 516:111-135. [PMID: 33545110 DOI: 10.1016/j.cca.2021.01.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 01/23/2021] [Accepted: 01/26/2021] [Indexed: 01/11/2023]
Abstract
Prostate cancer (PCa), the second most malignant neoplasm in men, is also the fifth leading cause of cancer-related deaths in men globally. Unfortunately, this malignancy remains largely asymptomatic until late-stage emergence when treatment is limited due to the lack of effective metastatic PCa therapeutics. Due to these limitations, early PCa detection through prostate-specific antigen (PSA) screening has become increasingly important, resulting in a more than 50% decrease in mortality. Conventional assays for PSA detection, such as enzyme-linked immunosorbent assay (ELISA), are labor intensive, relatively expensive, operator-dependent and do not provide adequate sensitivity. Electrochemical biosensors overcome these limitations because they are rapid, cost-effective, simple to use and ultrasensitive. This article reviews electrochemical PSA biosensors using electroconductive nanomaterials such as carbon-, metal-, metal oxide- and peptide-based nanostructures, as well as polymers to significantly improve conductivity and enhance sensitivity. Challenges associated with the development of these devices are discussed thus providing additional insight into their analytic strength as well as their potential use in early PCa detection.
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Affiliation(s)
- Sayeh Dowlatshahi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad J Abdekhodaie
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran; Yeates School of Graduate Studies, Ryerson University, Toronto, Ontario, Canada.
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17
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Pereira MM, Calixto JD, Sousa ACA, Pereira BJ, Lima ÁS, Coutinho JAP, Freire MG. Towards the differential diagnosis of prostate cancer by the pre-treatment of human urine using ionic liquids. Sci Rep 2020; 10:14931. [PMID: 32913223 PMCID: PMC7483695 DOI: 10.1038/s41598-020-71925-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 08/03/2020] [Indexed: 12/24/2022] Open
Abstract
Prostate specific antigen (PSA) is the most widely used clinical biomarker for the diagnosis and monitoring of prostate cancer. Most available techniques for PSA quantification in human fluids require extensive sample processing and expensive immunoassays that are often unavailable in developing countries. The quantification of PSA in serum is the most common practice; however, PSA is also present in human urine, although less used in diagnosis. Herein we demonstrate the use of ionic-liquid-based aqueous biphasic systems (IL-based ABS) as effective pre-treatment strategies of human urine, allowing the PSA detection and quantification by more expedite equipment in a non-invasive matrix. If properly designed, IL-based ABS afford the simultaneous extraction and concentration of PSA (at least up to 250-fold) in the IL-rich phase. The best ABS not only allow to concentrate PSA but also other forms of PSA, which can be additionally quantified, paving the way to their use in differential prostate cancer diagnosis.
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Affiliation(s)
- Matheus M Pereira
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - João D Calixto
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Ana C A Sousa
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Bruno J Pereira
- Faculty of Health Sciences, University of Beira Interior, 6200-506, Covilhã, Portugal.,Instituto Português de Oncologia de Coimbra Francisco Gentil, 3000-075, Coimbra, Portugal
| | - Álvaro S Lima
- Programa de Pós-Graduação Em Engenharia de Processos, Universidade Tiradentes, Farolândia, Aracaju, SE, CEP 49032-490, Brazil
| | - João A P Coutinho
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Mara G Freire
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal.
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18
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Urinary Biomarkers and Benign Prostatic Hyperplasia. CURRENT BLADDER DYSFUNCTION REPORTS 2019. [DOI: 10.1007/s11884-019-00504-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Approaches to urinary detection of prostate cancer. Prostate Cancer Prostatic Dis 2019; 22:362-381. [PMID: 30655600 PMCID: PMC6640078 DOI: 10.1038/s41391-019-0127-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/06/2018] [Accepted: 12/26/2018] [Indexed: 12/11/2022]
Abstract
Background: Prostate cancer is the most common cancer in American men that ranges from low risk states amenable to active surveillance to high risk states that can be lethal especially if untreated. There is a critical need to develop relatively non-invasive and clinically useful methods for screening, detection, prognosis, disease monitoring, and prediction of treatment efficacy. In this review, we focus on important advances as well as future efforts needed to drive clinical innovation in this area of urine biomarker research for prostate cancer detection and prognostication. Methods: We provide a review of current literature on urinary biomarkers for prostate cancer. We evaluate the strengths and limitations of a variety of approaches that vary in sampling strategies and targets measured; discuss reported urine tests for prostate cancer with respect to their technical, analytical, and clinical parameters; and provide our perspectives on critical considerations in approaches to developing a urine-based test for prostate cancer. Results: There has been an extensive history of exploring urine as a source of biomarkers for prostate cancer that has resulted in a variety of urine tests that are in current clinical use. Importantly, at least three tests have demonstrated high sensitivity (~90%) and negative predictive value (~95%) for clinically significant tumors; however, there has not been widespread adoption of these tests. Conclusions: Conceptual and methodological advances in the field will help to drive the development of novel urinary tests that in turn may lead to a shift in the clinical paradigm for prostate cancer diagnosis and management.
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20
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Tyagi P, Motley SS, Koyama T, Kashyap M, Gingrich J, Yoshimura N, Fowke JH. Molecular correlates in urine for the obesity and prostatic inflammation of BPH/LUTS patients. Prostate 2018; 78:17-24. [PMID: 29080225 PMCID: PMC5716834 DOI: 10.1002/pros.23439] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/29/2017] [Indexed: 11/07/2022]
Abstract
PURPOSE Benign prostatic hyperplasia (BPH) is strongly associated with obesity and prostatic tissue inflammation, but the molecular underpinning of this relationship is not known. Here, we examined the association between urine levels of chemokines/adipokines with histological markers of prostate inflammation, obesity, and lower urinary tract symptoms LUTS in BPH patients. METHODS Frozen urine specimens from 207 BPH/LUTS patients enrolled in Nashville Men's Health Study were sent for blinded analysis of 11 analytes, namely sIL-1RA, CXC chemokines (CXCL-1, CXCL-8, CXCL-10), CC chemokines (CCL2, CCL3, CCL5), PDGF-BB, interleukins IL-6, IL-17, and sCD40L using Luminex™ xMAP® technology. After adjusting for age and medication use, the urine levels of analytes were correlated with the scales of obesity, prostate inflammation grade, extent, and markers of lymphocytic infiltration (CD3 and CD20) using linear regression. RESULTS sIL-1RA levels were significantly raised with higher BMI, waist circumference and waist-hip ratio in BPH patients after correction for multiple testing (P = 0.02). Men with greater overall extent of inflammatory infiltrates and maximal CD3 infiltration were marginally associated with CXCL-10 (P = 0.054) and CCL5 (P = 0.054), respectively. CCL3 in 15 patients with moderate to severe grade inflammation was marginally associated with maximal CD20 infiltration (P = 0.09), whereas CCL3 was undetectable in men with mild prostate tissue inflammation. There was marginal association of sCD40L with AUA-SI scores (P = 0.07). CONCLUSIONS Strong association of sIL-1RA in urine with greater body size supports it as a major molecular correlate of obesity in the urine of BPH patients. Increased urine levels of CXCL-10, CCL5, and CCL3 were marginally associated with the scores for prostate tissue inflammation and lymphocytic infiltration. Overall, elevated urinary chemokines support that BPH is a metabolic disorder and suggest a molecular link between BPH/LUTS and prostatic inflammation.
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Affiliation(s)
- Pradeep Tyagi
- Department of Urology, University of Pittsburgh, Pittsburgh
| | - Saundra S. Motley
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37032
| | - Tatsuki Koyama
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37032
| | | | | | | | - Jay H. Fowke
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37032
- Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, TN 37032
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21
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Shi T, Quek SI, Gao Y, Nicora CD, Nie S, Fillmore TL, Liu T, Rodland KD, Smith RD, Leach RJ, Thompson IM, Vitello EA, Ellis WJ, Liu AY, Qian WJ. Multiplexed targeted mass spectrometry assays for prostate cancer-associated urinary proteins. Oncotarget 2017; 8:101887-101898. [PMID: 29254211 PMCID: PMC5731921 DOI: 10.18632/oncotarget.21710] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 08/04/2017] [Indexed: 02/07/2023] Open
Abstract
Biomarkers for effective early diagnosis and prognosis of prostate cancer are still lacking. Multiplexed assays for cancer-associated proteins could be useful for identifying biomarkers for cancer detection and stratification. Herein, we report the development of sensitive targeted mass spectrometry assays for simultaneous quantification of 10 prostate cancer-associated proteins in urine. The diagnostic utility of these markers was evaluated with an initial cohort of 20 clinical urine samples. Individual marker concentration was normalized against the measured urinary prostate-specific antigen level as a reference of prostate-specific secretion. The areas under the receiver-operating characteristic curves for the 10 proteins ranged from 0.75 for CXL14 to 0.87 for CEAM5. Furthermore, MMP9 level was found to be significantly higher in patients with high Gleason scores, suggesting a potential of MMP9 as a marker for risk level assessment. Taken together, our work illustrated the feasibility of accurate multiplexed measurements of low-abundance cancer-associated proteins in urine and provided a viable path forward for preclinical verification of candidate biomarkers for prostate cancer.
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Affiliation(s)
- Tujin Shi
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Sue-Ing Quek
- Department of Urology, University of Washington, Seattle, WA, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA.,Present address: Singapore Polytechnic, Center for Biomedical and Life Sciences T11A-412 (level 4), Singapore
| | - Yuqian Gao
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Carrie D Nicora
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Song Nie
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Thomas L Fillmore
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Tao Liu
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Karin D Rodland
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Richard D Smith
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Robin J Leach
- Department of Urology and the Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Ian M Thompson
- Department of Urology and the Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Elizabeth A Vitello
- Department of Urology, University of Washington, Seattle, WA, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - William J Ellis
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Alvin Y Liu
- Department of Urology, University of Washington, Seattle, WA, USA.,Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA
| | - Wei-Jun Qian
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
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22
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Barrabés S, Llop E, Ferrer-Batallé M, Ramírez M, Aleixandre RN, Perry AS, de Llorens R, Peracaula R. Analysis of urinary PSA glycosylation is not indicative of high-risk prostate cancer. Clin Chim Acta 2017; 470:97-102. [PMID: 28495148 DOI: 10.1016/j.cca.2017.05.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 05/08/2017] [Accepted: 05/08/2017] [Indexed: 11/27/2022]
Abstract
The levels of core fucosylation and α2,3-linked sialic acid in serum Prostate Specific Antigen (PSA), using the lectins Pholiota squarrosa lectin (PhoSL) and Sambucus nigra agglutinin (SNA), can discriminate between Benign Prostatic Hyperplasia (BPH) and indolent prostate cancer (PCa) from aggressive PCa. In the present work we evaluated whether these glycosylation determinants could also be altered in urinary PSA obtained after digital rectal examination (DRE) and could also be useful for diagnosis determinations. For this purpose, α2,6-sialic acid and α1,6-fucose levels of urinary PSA from 53 patients, 18 biopsy-negative and 35 PCa patients of different aggressiveness degree, were analyzed by sandwich ELLA (Enzyme Linked Lectin Assay) using PhoSL and SNA. Changes in the levels of specific glycosylation determinants, that in serum PSA samples were indicative of PCa aggressiveness, were not found in PSA from DRE urine samples. Although urine is a simpler matrix for analyzing PSA glycosylation compared to serum, an immunopurification step was necessary to specifically detect the glycans on the PSA molecule. Those specific glycosylation determinants on urinary PSA were however not useful to improve PCa diagnosis. This could be probably due to the low proportion of PSA from the tumor in urine samples, which precludes the identification of aberrantly glycosylated PSA.
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Affiliation(s)
- Sílvia Barrabés
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Campus de Montilivi, 17003 Girona, Spain; Girona Biomedical Research Institute (IDIBGI), Dr. J. Trueta University Hospital, 17007 Girona, Spain
| | - Esther Llop
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Campus de Montilivi, 17003 Girona, Spain; Girona Biomedical Research Institute (IDIBGI), Dr. J. Trueta University Hospital, 17007 Girona, Spain
| | - Montserrat Ferrer-Batallé
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Campus de Montilivi, 17003 Girona, Spain; Girona Biomedical Research Institute (IDIBGI), Dr. J. Trueta University Hospital, 17007 Girona, Spain
| | - Manel Ramírez
- Girona Biomedical Research Institute (IDIBGI), Dr. J. Trueta University Hospital, 17007 Girona, Spain; Clinic Laboratory, Dr. J. Trueta University Hospital, 17007 Girona, Spain
| | - Rosa N Aleixandre
- Girona Biomedical Research Institute (IDIBGI), Dr. J. Trueta University Hospital, 17007 Girona, Spain; Clinic Laboratory, Dr. J. Trueta University Hospital, 17007 Girona, Spain
| | - Antoinette S Perry
- Cancer Biology and Therapeutics Laboratory, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Ireland
| | - Rafael de Llorens
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Campus de Montilivi, 17003 Girona, Spain; Girona Biomedical Research Institute (IDIBGI), Dr. J. Trueta University Hospital, 17007 Girona, Spain
| | - Rosa Peracaula
- Biochemistry and Molecular Biology Unit, Department of Biology, University of Girona, Campus de Montilivi, 17003 Girona, Spain; Girona Biomedical Research Institute (IDIBGI), Dr. J. Trueta University Hospital, 17007 Girona, Spain.
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23
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Akizhanova M, Iskakova EE, Kim V, Wang X, Kogay R, Turebayeva A, Sun Q, Zheng T, Wu S, Miao L, Xie Y. PSA and Prostate Health Index based prostate cancer screening in a hereditary migration complicated population: implications in precision diagnosis. J Cancer 2017; 8:1223-1228. [PMID: 28607597 PMCID: PMC5463437 DOI: 10.7150/jca.18012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 12/23/2016] [Indexed: 12/03/2022] Open
Abstract
Precision diagnosis requires specific markers for differential ethnic populations. Prostate-Specific Antigen (PSA) level (threshold of 4ng/ml) has been widely used to screen prostate cancer and as reference of pro-biopsy but false diagnosis frequently occurs. Prostate health Index (PHI) is a new diagnosis marker which combines PSA, free PSA and p2PSA4. Overall the PCa screening database is lacking in Kazakhstani patients. We analyzed the PSA levels and Gleason scores of 222 biopsies collected in 2015 in Almaty area, Kazakhstan approved by institutional ethics board. We found using PSA of 4ng/ml as threshold, only 25.68% of patients have cancer with Gleason score ranged 6-8 and 65.77% of patients have no character of cancer. Moreover, there is no significant correlation between PSA and cancerous (P=0.266) or Gleason grade (P=0.3046) based on pathological biopsy. In addition, PHI is not correlated to prostate cancer (P=0.4301). Our data suggest that false-positive rate is much higher than the correct-positive diagnosis when using PSA as the first screening. Thus in this cohort study, most patients can not get benefit from the PSA screening for precision PCa diagnosis. As Kazakhstani family trees are unique and complicated because of history and migration, the high rate of over diagnosis might be due to the hyperexpression of PSA via heterosis in Eurasian men. Therefore we should be cautious when using pro-biopsy in precision diagnosis for Eurasian prostate cancer patients.
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Affiliation(s)
- Mariyam Akizhanova
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Elzira E Iskakova
- Module of Pathological Anatomy, Kazakh National Medical University, Almaty, 050000, Republic of Kazakhstan
| | - Valdemir Kim
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Xiao Wang
- Shandong Analysis and Test Center, Shandong Academy of Sciences, 19 keyuan Street, Jinan, 250014, P.R. China
| | - Roman Kogay
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Aiym Turebayeva
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
| | - Qinglei Sun
- Shandong Analysis and Test Center, Shandong Academy of Sciences, 19 keyuan Street, Jinan, 250014, P.R. China
| | - Ting Zheng
- Shandong Analysis and Test Center, Shandong Academy of Sciences, 19 keyuan Street, Jinan, 250014, P.R. China
| | - Shenghui Wu
- Department of Epidemiology & Biostatistics, University of Texas Health at San Antonio Laredo Campus, Laredo, TX 78041, USA
| | - Lixia Miao
- College of Basic Medicine, Wuhan University, Wuhan, 430071, P.R. China
| | - Yingqiu Xie
- Department of Biology, School of Science and Technology, Nazarbayev University, Astana, 010000, Republic of Kazakhstan
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24
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Galilea San Blas O, Moreno Sanz F, Herrero Espílez P, Sainz Menéndez RM, Mayo Barallo JC, Marchante-Gayón JM, García Alonso JI. Evaluation of sulfur isotopic enrichment of urine metabolites for the differentiation of healthy and prostate cancer mice after the administration of 34S labelled yeast. J Trace Elem Med Biol 2017; 39:155-161. [PMID: 27908409 DOI: 10.1016/j.jtemb.2016.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/14/2016] [Accepted: 09/22/2016] [Indexed: 11/15/2022]
Abstract
Sulfur isotopic enrichment of urine metabolites in healthy and prostate cancer mice using 34S enriched yeast and High Performance Liquid Chromatography coupled to Multicollector Inductively Coupled Plasma Mass Spectrometry (HPLC-MC-ICP-MS) has been evaluated. A 30 weeks experiment (since the eleventh to the fortieth week of life) was carried out collecting the urine of three healthy mice and three transgenic mice with prostate cancer during 24h after a single oral administration of a 34S enriched yeast slurry. The isotopic enrichment of different sulphur metabolites was monitored by coupling a C18 reverse phase HPLC column with a multicollector ICP-MS using a membrane desolvating system. Quantification of sulfur in the chromatographic peaks was carried out by post-column isotope dilution using a 33S enriched spike. Differences between the 34S enrichment in the urine metabolites of healthy and prostate cancer mice were found from the beginning of the disease. Both populations could be differentiated using a principal component analysis (PCA). Finally, 7 unknown mice were correctly classified in each population using a linear discriminant analysis.
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Affiliation(s)
- Oscar Galilea San Blas
- Department of Physical and Analytical Chemistry, University of Oviedo, Julian Clavería 8, 33006 Oviedo, Spain
| | | | | | | | | | - Juan Manuel Marchante-Gayón
- Department of Physical and Analytical Chemistry, University of Oviedo, Julian Clavería 8, 33006 Oviedo, Spain
| | - José Ignacio García Alonso
- Department of Physical and Analytical Chemistry, University of Oviedo, Julian Clavería 8, 33006 Oviedo, Spain.
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25
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Analysis of Urinary Prostate-Specific Antigen Glycoforms in Samples of Prostate Cancer and Benign Prostate Hyperplasia. DISEASE MARKERS 2016; 2016:8915809. [PMID: 27065039 PMCID: PMC4811082 DOI: 10.1155/2016/8915809] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 01/22/2016] [Accepted: 02/03/2016] [Indexed: 11/17/2022]
Abstract
Glycans of prostate-specific antigen (PSA) in prostate cancer were found to be different from that in benign disease. It is difficult to analyze heterogeneous PSA glycoforms in each individual specimen because of low protein abundance and the limitation of detection sensitivity. We developed a method for prostate cancer diagnosis based on PSA glycoforms. Specific glycoforms were screened in each clinical sample based on liquid chromatography-tandem mass spectrometry with ion accumulation. To look for potential biomarkers, normalized abundance of each glycoform in benign prostate hyperplasia (BPH) and in prostate cancer was evaluated. The PSA glycoform, Hex5HexNAc4NeuAc1dHex1, and monosialylated, sialylated, and unfucosylated glycoforms differed significantly between the prostate cancer and BPH samples. The detection sensitivity (87.5%) and specificity (60%) for prostate cancer identification are higher than those of the serum PSA marker. As low as 100 amol PSA could be detected with the ion accumulation method which has not been reported before. The improved detection specificity can help reduce unnecessary examinations.
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26
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Pentyala S, Whyard T, Pentyala S, Muller J, Pfail J, Parmar S, Helguero CG, Khan S. Prostate cancer markers: An update. Biomed Rep 2016; 4:263-268. [PMID: 26998261 DOI: 10.3892/br.2016.586] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Accepted: 01/22/2016] [Indexed: 12/17/2022] Open
Abstract
As the most common noncutaneous malignancy in American men, prostate cancer currently accounts for 29% of all diagnosed cancers, and ranks second as the cause of cancer fatality in American men. Prostatic cancer is rarely symptomatic early in its course and therefore disease presentation often implies local extension or even metastatic disease. Thus, it is extremely critical to detect and diagnose prostate cancer in its earliest stages, often prior to the presentation of symptoms. Three of the most common techniques used to detect prostate cancer are the digital rectal exam, the transrectal ultrasound, and the use of biomarkers. This review presents an update regarding the field of prostate cancer biomarkers and comments on future biomarkers. Although there is not a lack of research in the field of prostate cancer biomarkers, the discovery of a novel biomarker that may have the advantage of being more specific and effective warrants future scientific inquiry.
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Affiliation(s)
- Srinivas Pentyala
- Department of Anesthesiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA; Department of Urology, Stony Brook Medical Center, Stony Brook, NY 11794, USA; Department of Health Sciences, Stony Brook Medical Center, Stony Brook, NY 11794, USA; Department of Physiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
| | - Terry Whyard
- Department of Urology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
| | - Sahana Pentyala
- Department of Anesthesiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
| | - John Muller
- Department of Anesthesiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
| | - John Pfail
- Department of Anesthesiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
| | - Sunjit Parmar
- Department of Anesthesiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
| | - Carlos G Helguero
- Department of Anesthesiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
| | - Sardar Khan
- Department of Urology, Stony Brook Medical Center, Stony Brook, NY 11794, USA; Department of Physiology, Stony Brook Medical Center, Stony Brook, NY 11794, USA
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27
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Incerti E, Fodor A, Mapelli P, Fiorino C, Alongi P, Kirienko M, Giovacchini G, Busnardo E, Gianolli L, Di Muzio N, Picchio M. Radiation Treatment of Lymph Node Recurrence from Prostate Cancer: Is 11C-Choline PET/CT Predictive of Survival Outcomes? J Nucl Med 2015; 56:1836-42. [PMID: 26405166 DOI: 10.2967/jnumed.115.163741] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/28/2015] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED PET/CT is a valuable tool to detect lymph node (LN) metastases in patients with biochemical failure after primary treatment for prostate cancer (PCa). The aim was to assess the predictive role of imaging parameters derived by (11)C-choline PET/CT on survival outcomes-overall survival, locoregional relapse-free survival, clinical relapse-free survival (cRFS), and biochemical relapse-free survival (bRFS)-in patients treated with helical tomotherapy (HTT) for LN recurrence. METHODS This retrospective study included 68 patients affected by PCa (mean age, 68 y; age range, 51-81 y) with biochemical recurrence after primary treatment (median prostate-specific antigen values obtained at the time of PET/CT scan, 2.42 ng/mL; range, 0.61-27.56 ng/mL) who underwent (11)C-choline PET/CT from January 2005 to January 2013 and were treated with HTT in correspondence of the pathologic choline LN uptake. PET-derived parameters, including maximum/mean standardized uptake value (SUVmax and SUVmean, respectively) and metabolic tumor volume (MTV) with a threshold of 40%, 50%, and 60% were calculated. The best cutoff values of PET-derived parameters discriminating between patients with and without relapse, after treatment guided by PET, were assessed by receiver-operating-characteristic (ROC) curve analysis. Univariate and multivariate Cox regression analysis including the most predictive PET-derived parameters and survival outcomes were performed. RESULTS The median follow-up was 20 mo (mean, 26 mo; range, 3-97 mo). (11)C-choline PET/CT showed pathologic LN uptake in 4 patients at the pelvic level, in 5 at the abdominal level, in 13 at both the pelvic and the abdominal level, and in 46 at the abdominal or pelvic or other sites. The 2-y overall survival, locoregional relapse-free survival, cRFS, and bRFS were 87%, 91%, 51%, and 40%, respectively. On the basis of ROC curves, the most discriminative cutoff value for MTV values was an MTV threshold of 60% (MTV60) of greater than 0.64 cm(3). No significant cutoff values were found for SUVmax or SUVmean at univariate analysis, whereas MTV60 was confirmed as an independent predictor in multivariate analysis and significantly correlated with bRFS and cRFS. MTV60 and extrapelvic disease well predict the risk of cRFS. CONCLUSION (11)C-choline PET/CT performed as a guide for HTT on LN recurrence is predictive of survival. In particular, MTV60 and extrapelvic disease were the best predictors of tumor response for bRFS and cRFS in PCa patients with LN recurrence after primary treatment. This information may be useful in emerging treatment strategies.
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Affiliation(s)
- Elena Incerti
- Department of Nuclear Medicine, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Andrei Fodor
- Department of Radiotherapy, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Paola Mapelli
- Department of Nuclear Medicine, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Claudio Fiorino
- Department of Medical Physics, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Pierpaolo Alongi
- Department of Nuclear Medicine, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Giampiero Giovacchini
- Department of Radiology and Nuclear Medicine, Stadtspital Triemli, Zurich, Switzerland
| | - Elena Busnardo
- Department of Nuclear Medicine, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Luigi Gianolli
- Department of Nuclear Medicine, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Nadia Di Muzio
- Department of Radiotherapy, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Picchio
- Department of Nuclear Medicine, IRCCS San Raffaele Scientific Institute, Milan, Italy
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Duijvesz D, Versluis CYL, van der Fels CAM, Vredenbregt-van den Berg MS, Leivo J, Peltola MT, Bangma CH, Pettersson KSI, Jenster G. Immuno-based detection of extracellular vesicles in urine as diagnostic marker for prostate cancer. Int J Cancer 2015; 137:2869-78. [PMID: 26139298 DOI: 10.1002/ijc.29664] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 05/26/2015] [Indexed: 12/19/2022]
Abstract
Extracellular vesicles (including the subclass exosomes) secreted by cells contain specific proteins and RNA that could be of interest in determining new markers. Isolation/characterization of PCa-derived exosomes from bodily fluids enables us to discover new markers for this disease. Unfortunately, isolation with current techniques (ultracentrifugation) is labor intensive and other techniques are still under development. The goal of our study was to develop a highly sensitive time-resolved fluorescence immunoassay (TR-FIA) for capture/detection of PCa-derived exosomes. In our assay, biotinylated capture antibodies against human CD9 or CD63 were incubated on streptavidin-coated wells. After application of exosomes, Europium-labeled detection antibodies (CD9 or CD63) were added. Cell medium from 37 cell lines was taken to validate this TR-FIA. Urine was collected (after digital rectal exam) from patients with PCa (n = 67), men without PCa (n = 76). As a control, urine was collected from men after radical prostatectomy (n = 13), women (n = 16) and patients with prostate cancer without digital rectal exam (n = 16). Signal intensities were corrected for urinary PSA and creatinine. This TR-FIA can measure purified exosomes with high sensitivity and minimal background signals. Exosomes can be measured in medium from 37 cell lines and in urine. DRE resulted in a pronounced increase in CD63 signals. After DRE and correction for urinary PSA, CD9 and CD63 were significantly higher in men with PCa. This TR-FIA enabled us to measure exosomes with high sensitivity directly from urine and cell medium. This TR-FIA forms the basis for testing different antibodies directed against exosome membrane markers to generate disease-specific detection assays.
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Affiliation(s)
- Diederick Duijvesz
- Department of Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - C Yin L Versluis
- Department of Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | | | - Janne Leivo
- Department of Diagnostic Technologies and Applications, University of Turku, Turku, Finland
| | - Mari T Peltola
- Department of Diagnostic Technologies and Applications, University of Turku, Turku, Finland
| | - Chris H Bangma
- Department of Urology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Kim S I Pettersson
- Department of Diagnostic Technologies and Applications, University of Turku, Turku, Finland
| | - Guido Jenster
- Department of Urology, Erasmus Medical Center, Rotterdam, The Netherlands
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29
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Nunes Pauli GE, de la Escosura-Muñiz A, Parolo C, Helmuth Bechtold I, Merkoçi A. Lab-in-a-syringe using gold nanoparticles for rapid immunosensing of protein biomarkers. LAB ON A CHIP 2015; 15:399-405. [PMID: 25375810 DOI: 10.1039/c4lc01123f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We have developed a paper and gold nanoparticle (AuNP)-based lab-in-a-syringe (LIS) for immunosensing of biomarkers. This simple diagnostic device features simultaneous sampling and vertical-flow operation, which means that unlike typical immunosensors, it does not suffer from any delay between sampling and detection. It can handle large-volume, low-concentration samples for analysis in diverse applications (e.g. biomedical, environmental, food, etc.). Furthermore, its operating range for sample concentration can be tuned by simply changing the volume of the syringed sample, which enables on-demand limits of detection (LOD). The LIS contains two nitrocellulose pads: the conjugate pad (which captures the analyte) and the detection pad (which signals the presence of the captured analyte) both embedded into reusable plastic cartridges. We demonstrated its efficiency in detecting human IgG (HIgG) (LOD: 1.0 ng mL(-1)) and prostate-specific antigen (PSA) (spiked urine samples; LOD: 1.9 ng mL(-1)). In the field, the LIS can be used for complete on-site analysis or to obtain partially analyzed samples (AuNPs with captured analyte) for subsequent detailed testing in specialized laboratories.
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Affiliation(s)
- Gisele Elias Nunes Pauli
- ICN2 - Nanobioelectronics & Biosensors Group, Institut Catala de Nanociencia i Nanotecnologia, Campus UAB, 08193 Bellaterra, Barcelona, Spain.
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30
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Vermassen T, Van Praet C, Vanderschaeghe D, Maenhout T, Lumen N, Callewaert N, Hoebeke P, Van Belle S, Rottey S, Delanghe J. Capillary electrophoresis of urinary prostate glycoproteins assists in the diagnosis of prostate cancer. Electrophoresis 2013; 35:1017-24. [PMID: 24254641 DOI: 10.1002/elps.201300332] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 10/17/2013] [Accepted: 10/27/2013] [Indexed: 11/06/2022]
Abstract
Prostate marker assays are widely used for detection of prostate cancer (PCa) but are associated with considerable sensitivity and specificity problems. Therefore, we investigated prostatic protein glycosylation profiles as a potential biomarker. We determined the urinary asparagine-linked glycan (N-glycan) profile of prostatic proteins of healthy volunteers (n = 25), patients with benign prostate hyperplasia (BPH; n = 62) and newly diagnosed PCa patients (n = 42) using DNA-sequencer-assisted fluorophore-assisted carbohydrate electrophoresis. Through squeezing of the prostate, a sufficient amount of prostatic proteins was obtained for direct structural analyses of N-glycan structures. N-glycans of PCa compared to BPH were characterized by a significant decrease in triantennary structures (p = 0.047) and overall fucosylation (p = 0.026). Prostate-specific antigen (PSA) and the urinary glycoprofile marker showed comparable overall receiver operating characteristic curve analysis as well as in the diagnostic gray zone with serum PSA values between 4 and 10 μg/L. However, when combining PSA and the urinary glycoprofile marker, the latter gave an additive diagnostic value to serum PSA (p ≤ 0.001). In conclusion, N-glycosylation profiling demonstrated differences between BPH and PCa. These changes could lead to the discovery of a new biomarker for PCa.
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Affiliation(s)
- Tijl Vermassen
- Department of Medical Oncology, Ghent University Hospital, Ghent, Belgium
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31
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Abstract
Transperineal prostate biopsy is re-emerging after decades of being an underused alternative to transrectal biopsy guided by transrectal ultrasonography (TRUS). Factors driving this change include possible improved cancer detection rates, improved sampling of the anteroapical regions of the prostate, a reduced risk of false negative results and a reduced risk of underestimating disease volume and grade. The increasing incidence of antimicrobial resistance and patients with diabetes mellitus who are at high risk of sepsis also favours transperineal biopsy as a sterile alternative to standard TRUS-guided biopsy. Factors limiting its use include increased time, training and financial constraints as well as the need for high-grade anaesthesia. Furthermore, the necessary equipment for transperineal biopsy is not widely available. However, the expansion of transperineal biopsy has been propagated by the increase in multiparametric MRI-guided biopsies, which often use the transperineal approach. Used with MRI imaging, transperineal biopsy has led to improvements in cancer detection rates, more-accurate grading of cancer severity and reduced risk of diagnosing clinically insignificant disease. Targeted biopsy under MRI guidance can reduce the number of cores required, reducing the risk of complications from needle biopsy.
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Sağlam HS, Köse O, Ozdemir F, Adsan O. Do the values of prostate specific antigen obtained from fresh and dried urine reflect the serum measurements? Urol Ann 2013; 5:99-102. [PMID: 23798866 PMCID: PMC3685754 DOI: 10.4103/0974-7796.110006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 03/03/2012] [Indexed: 11/16/2022] Open
Abstract
Aim: To investigate if free PSA (fPSA) and total PSA (tPSA) values obtained from simultaneously collected urine, fresh and dried on filter paper, reflect the serum free and total PSA. Materials and Methods: The sera and 20 cc first voided urine from 33 consecutive men aged between 40 and 84 (mean 61 ± 12), were collected in the morning and delivered to the laboratory. Three different aliquots of 100 microgram urine were taken with automatic pipette and dropped on 3 certain areas of a filter paper and allowed to dry for each patient. On each paper, borders of dried urine were marked. PSA values were obtained from the sera and fresh urine samples and recorded. Later on particular days dried urine samples were dissolved and eventually PSA values were derived and recorded again. The results were compared to each other. Correlations were evaluated by using an SPSS statistics program. Results: Serum PSA values correlated weakly (r < 0.24) with fresh and dried urine PSA values. While PSA in fresh and dried urine samples showed strong correlation (0.5 < r < 0.74), a very strong correlation (r > 0.75) among PSA values of dried urine samples of 1-day, 7- and 28-days, were seen. Conclusions: We conclude that PSA values obtained from fresh and dried urine could not reflect serum PSA values. But, because dried urine on a filter paper can be stable for years, it could be used for forensic purposes.
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Affiliation(s)
- Hasan S Sağlam
- Department of Urology, Sakarya University, Medical Faculty, Sakarya, Turkey
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33
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Rigau M, Olivan M, Garcia M, Sequeiros T, Montes M, Colás E, Llauradó M, Planas J, de Torres I, Morote J, Cooper C, Reventós J, Clark J, Doll A. The present and future of prostate cancer urine biomarkers. Int J Mol Sci 2013; 14:12620-49. [PMID: 23774836 PMCID: PMC3709804 DOI: 10.3390/ijms140612620] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 05/27/2013] [Accepted: 06/03/2013] [Indexed: 11/30/2022] Open
Abstract
In order to successfully cure patients with prostate cancer (PCa), it is important to detect the disease at an early stage. The existing clinical biomarkers for PCa are not ideal, since they cannot specifically differentiate between those patients who should be treated immediately and those who should avoid over-treatment. Current screening techniques lack specificity, and a decisive diagnosis of PCa is based on prostate biopsy. Although PCa screening is widely utilized nowadays, two thirds of the biopsies performed are still unnecessary. Thus the discovery of non-invasive PCa biomarkers remains urgent. In recent years, the utilization of urine has emerged as an attractive option for the non-invasive detection of PCa. Moreover, a great improvement in high-throughput “omic” techniques has presented considerable opportunities for the identification of new biomarkers. Herein, we will review the most significant urine biomarkers described in recent years, as well as some future prospects in that field.
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Affiliation(s)
- Marina Rigau
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
| | - Mireia Olivan
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
| | - Marta Garcia
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
| | - Tamara Sequeiros
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
| | - Melania Montes
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
| | - Eva Colás
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
| | - Marta Llauradó
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
| | - Jacques Planas
- Department of Urology, Vall d’Hebron University Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (J.P.); (J.M.)
| | - Inés de Torres
- Department of Pathology, Vall d’Hebron University Hospital Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mail:
| | - Juan Morote
- Department of Urology, Vall d’Hebron University Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (J.P.); (J.M.)
| | - Colin Cooper
- Cancer Genetics, University of East Anglia, Norwich Norfolk, NR4 7TJ, UK; E-Mails: (C.C.); (J.C.)
| | - Jaume Reventós
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
- Department of Basic Sciences, International University of Catalonia, 08017 Barcelona, Spain
| | - Jeremy Clark
- Cancer Genetics, University of East Anglia, Norwich Norfolk, NR4 7TJ, UK; E-Mails: (C.C.); (J.C.)
| | - Andreas Doll
- Research Unit in Biomedicine and Translational Oncology, Vall d’Hebron Research Institute and Hospital and Autonomous University of Barcelona, 08035 Barcelona, Spain; E-Mails: (M.R.); (M.O.); (M.G.); (T.S.); (M.M.); (E.C.); (M.L.); (J.R.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +34-93-489-4067; Fax: +34-93-274-6708
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34
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Affiliation(s)
- Armen Aprikian
- Head, Division of Urology, McGill University, Montréal, Que
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35
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Hekal IA. Urinary prostate specific antigen, usefulness is still a matter of controversy. Urol Ann 2013; 5:102. [PMID: 23798867 PMCID: PMC3685737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- Ihab Ahmed Hekal
- Consultant Urologist, Department of Urology, Dossary Hospital, Alkhobar, Saudia Arabia, Fellow of VRIEJ University, Amsterdam-Netherland and Mansoura Urology and Nephrology Center, Mansoura University, Egypt,Address for correspondence: Dr. Ihab Ahmed Hekal, Consultant Urologist, Department of Urology, Dossary Hospital, Alkhobar, Saudia Arabia, Fellow of VRIEJ University, Amsterdam-Netherland and Mansoura Urology and Nephrology Center, Mansoura University, Egypt. E-mail:
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36
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Sardana G, Diamandis EP. Biomarkers for the diagnosis of new and recurrent prostate cancer. Biomark Med 2012; 6:587-96. [DOI: 10.2217/bmm.12.72] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Prostate cancer is the most prevalent cancer in men and can be managed effectively if diagnosed early and monitored. Currently, prostate-specific antigen testing in conjunction with a digital rectal exam has been utilized for screening at-risk men. However, the lack of specificity of prostate-specific antigen as a marker for prostate cancer combined with the asymptomatic and slow-growing nature of prostate tumors has resulted in many men being overdiagnosed and subjected to surgery or treatment with adverse side effects. The focus in the research community currently has been on discovering noninvasive surrogate markers such as proteins, circulating tumor cells and nucleic acids in the blood or urine of patients with prostate cancer. These markers, in combination with prostate-specific antigen, are providing promise that a personalized multiparametric approach to prostate cancer diagnosis and monitoring will aid in managing this disease.
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Affiliation(s)
| | - Eleftherios P Diamandis
- Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, ON, Canada
- Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
- Department of Clinical Biochemistry, University Health Network, Toronto, ON, Canada
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Kim Y, Ignatchenko V, Yao CQ, Kalatskaya I, Nyalwidhe JO, Lance RS, Gramolini AO, Troyer DA, Stein LD, Boutros PC, Medin JA, Semmes OJ, Drake RR, Kislinger T. Identification of differentially expressed proteins in direct expressed prostatic secretions of men with organ-confined versus extracapsular prostate cancer. Mol Cell Proteomics 2012; 11:1870-84. [PMID: 22986220 DOI: 10.1074/mcp.m112.017889] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Current protocols for the screening of prostate cancer cannot accurately discriminate clinically indolent tumors from more aggressive ones. One reliable indicator of outcome has been the determination of organ-confined versus nonorgan-confined disease but even this determination is often only made following prostatectomy. This underscores the need to explore alternate avenues to enhance outcome prediction of prostate cancer patients. Fluids that are proximal to the prostate, such as expressed prostatic secretions (EPS), are attractive sources of potential prostate cancer biomarkers as these fluids likely bathe the tumor. Direct-EPS samples from 16 individuals with extracapsular (n = 8) or organ-confined (n = 8) prostate cancer were used as a discovery cohort, and were analyzed in duplicate by a nine-step MudPIT on a LTQ-Orbitrap XL mass spectrometer. A total of 624 unique proteins were identified by at least two unique peptides with a 0.2% false discovery rate. A semiquantitative spectral counting algorithm identified 133 significantly differentially expressed proteins in the discovery cohort. Integrative data mining prioritized 14 candidates, including two known prostate cancer biomarkers: prostate-specific antigen and prostatic acid phosphatase, which were significantly elevated in the direct-EPS from the organ-confined cancer group. These and five other candidates (SFN, MME, PARK7, TIMP1, and TGM4) were verified by Western blotting in an independent set of direct-EPS from patients with biochemically recurrent disease (n = 5) versus patients with no evidence of recurrence upon follow-up (n = 10). Lastly, we performed proof-of-concept SRM-MS-based relative quantification of the five candidates using unpurified heavy isotope-labeled synthetic peptides spiked into pools of EPS-urines from men with extracapsular and organ-confined prostate tumors. This study represents the first efforts to define the direct-EPS proteome from two major subclasses of prostate cancer using shotgun proteomics and verification in EPS-urine by SRM-MS.
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Affiliation(s)
- Yunee Kim
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
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Vermassen T, Speeckaert MM, Lumen N, Rottey S, Delanghe JR. Glycosylation of prostate specific antigen and its potential diagnostic applications. Clin Chim Acta 2012; 413:1500-5. [PMID: 22722018 DOI: 10.1016/j.cca.2012.06.007] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 06/04/2012] [Indexed: 01/28/2023]
Abstract
Prostate specific antigen (PSA) assays are widely used for early detection of prostate cancer. However, those analyses are associated with considerable sensitivity and specificity problems. Several approaches have been developed to tackle this issue. PSA is a glycoprotein, which is primarily produced by the prostatic epithelial cells. Aberrant glycosylation modification of proteins is a fundamental characteristic of tumorigenesis. Study of PSA glycoforms offers interesting diagnostic perspectives. Modern technology allows us to analyze PSA glycoforms in a variety of clinical samples (serum or plasma, urine, seminal fluid, tissue). A number of novel techniques, such as lectin-based detection methods, mass spectrometry, 2-dimensional electrophoresis and capillary electrophoresis have been developed to analyze PSA glycosylation. This article reviews the technical and diagnostic aspects of PSA glycoforms.
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Affiliation(s)
- Tijl Vermassen
- Department of Medical Oncology, Ghent University Hospital, Ghent, Belgium
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Feng T, Feng D, Shi W, Li X, Ma H. A graphene oxide-peptide fluorescence sensor for proteolytically active prostate-specific antigen. MOLECULAR BIOSYSTEMS 2012; 8:1441-5. [DOI: 10.1039/c2mb05379a] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bolduc S, Inman BA, Lacombe L, Fradet Y, Tremblay RR. Early detection of prostate cancer local recurrence by urinary prostate-specific antigen. Can Urol Assoc J 2011; 3:213-7. [PMID: 19543465 DOI: 10.5489/cuaj.1074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
PURPOSE We assessed the role of urinary prostate-specific antigen (uPSA) in the follow-up of prostate cancer after retropubic radical prostatectomy (RRP) for the early detection of local recurrences. METHODS We recruited 50 patients previously treated for prostate cancer with RRP and who had not experienced a prostate-specific antigen (PSA) recurrence within their first postoperative year into a cross-sectional laboratory assessment and prospective 6-year longitudinal follow-up study. We defined biochemical failure as a serum PSA (sPSA) of 0.3 μg/L or greater. Patients provided blood samples and a 50-mL sample of first-voided urine. We performed Wilcoxon rank-sum and Fisher exact tests for statistical analysis. RESULTS The median sPSA was 0.13 μg/L. The median uPSA was 0.8 μg/L, and was not significantly different when comparing Gleason scores or pathological stages. Of the 50 patients, 27 initially had a nondetectable sPSA but a detectable uPSA, and 11 patients experienced sPSA failure after 6 years. Six patients had detectable sPSA and uPSA initially. Fifteen patients were negative for both sPSA and uPSA, and 13 remained sPSA-free after 6 years. The odds ratio (OR) of having sPSA failure given a positive uPSA test was 4.5 if sPSA was undetectable, but was reduced to 2.6 if sPSA was detectable. The pooled Mantel-Haenszel OR of 4.2 suggested that a detectable uPSA quadrupled the risk of recurrence, independent of whether sPSA was elevated or not. The sensitivity of uPSA for detecting future sPSA recurrences was 81% and specificity was 45%. CONCLUSION Urinary PSA could contribute to an early detection of local recurrences of prostate cancer after a radical prostatectomy.
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Affiliation(s)
- Stéphane Bolduc
- From the Division of Urology, Centre Hospitalier Universitaire de Québec (CHUQ), Université Laval, Québec, Que
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Abstract
The serum PSA test still is the most important biomarker for the detection and follow-up of prostate cancer. PSA-based screening can reduce disease specific mortality but coinciding unnecessary testing and overdiagnosis warrant further research for more specific biomarkers. Numerous studies of both serum and urine-based prostate cancer biomarker candidates have been presented the last ten years. However, biomarkers for identifying the most aggressive subsets of this malignancy are still missing. Being non-invasive, urine-based tests might be suitable for both clinical and (mass) screening purposes, but also for prediction and to gain prognostic information. Protein-based, DNA-based and RNA-based urine biomarkers have been developed and tested. PROTEIN MARKERS IN URINE Data on protein-based urine biomarkers (i.e. Annexin A3, matrix metalloproteinases and the urinary:serum PSA ratio) show up to now contradictory results and further studies are warranted to be able to assess their clinical value in which the cost aspect should not be overlooked. DNA markers in urine. Studies on DNA-based urine biomarkers focus on hypermethylation of gene panels with GSTP1 hypermethylation being the most promising individual marker. Larger prospective clinical studies of single markers and gene panels are however needed to validate their clinical utility. RNA MARKERS IN URINE RNA-based urine biomarkers are by far the most developed. The PCA3 test, the TMPRSS2-ERG fusion gene, transcript expression levels of GOLPH2, SPINK1 and their combination have been subject of many studies showing encouraging results. CONCLUSION Up to now urine-based biomarkers represent a promising alternative or addition to serum-based biomarkers. Prospective studies in a multivariate setting, including larger sample sizes and avoiding attribution bias caused by preselection on the basis of serum PSA are however required.
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Affiliation(s)
- Monique J Roobol
- Erasmus MC, University Medical Centre, Department of Urology, Rotterdam, The Netherlands.
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Whitaker HC, Kote-Jarai Z, Ross-Adams H, Warren AY, Burge J, George A, Bancroft E, Jhavar S, Leongamornlert D, Tymrakiewicz M, Saunders E, Page E, Mitra A, Mitchell G, Lindeman GJ, Evans DG, Blanco I, Mercer C, Rubinstein WS, Clowes V, Douglas F, Hodgson S, Walker L, Donaldson A, Izatt L, Dorkins H, Male A, Tucker K, Stapleton A, Lam J, Kirk J, Lilja H, Easton D, Cooper C, Eeles R, Neal DE. The rs10993994 risk allele for prostate cancer results in clinically relevant changes in microseminoprotein-beta expression in tissue and urine. PLoS One 2010; 5:e13363. [PMID: 20967219 PMCID: PMC2954177 DOI: 10.1371/journal.pone.0013363] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 09/01/2010] [Indexed: 11/19/2022] Open
Abstract
Background Microseminoprotein-beta (MSMB) regulates apoptosis and using genome-wide association studies the rs10993994 single nucleotide polymorphism in the MSMB promoter has been linked to an increased risk of developing prostate cancer. The promoter location of the risk allele, and its ability to reduce promoter activity, suggested that the rs10993994 risk allele could result in lowered MSMB in benign tissue leading to increased prostate cancer risk. Methodology/Principal Findings MSMB expression in benign and malignant prostate tissue was examined using immunohistochemistry and compared with the rs10993994 genotype. Urinary MSMB concentrations were determined by ELISA and correlated with urinary PSA, the presence or absence of cancer, rs10993994 genotype and age of onset. MSMB levels in prostate tissue and urine were greatly reduced with tumourigenesis. Urinary MSMB was better than urinary PSA at differentiating men with prostate cancer at all Gleason grades. The high risk allele was associated with heterogeneity of MSMB staining and loss of MSMB in both tissue and urine in benign prostate. Conclusions These data show that some high risk alleles discovered using genome-wide association studies produce phenotypic effects with potential clinical utility. We provide the first link between a low penetrance polymorphism for prostate cancer and a potential test in human tissue and bodily fluids. There is potential to develop tissue and urinary MSMB for a biomarker of prostate cancer risk, diagnosis and disease monitoring.
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Affiliation(s)
- Hayley C Whitaker
- Uro-Oncology Research Group, CRUK Cambridge Research Institute, Cambridge, United Kingdom.
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Abstract
The deficiencies of serum PSA as a prostate-cancer-specific diagnostic test are well recognized. Thus, the development of novel biomarkers for prostate cancer detection remains an important and exciting challenge. Noninvasive urine-based tests are particularly attractive candidates for large-scale screening protocols, and biomarker discovery programs using urine samples have emerged for detecting and predicting aggressiveness of prostate cancer. Some new biomarkers already outperform serum PSA in the diagnosis of this disease. Currently, the PCA3 (prostate cancer antigen 3) urine test is probably the best adjunct to serum PSA for predicting biopsy outcome, and has proven its clinical relevance by surpassing the predictive abilities of traditional serum biomarkers. New research methods are also emerging, and high-throughput technologies will facilitate high-dimensional biomarker discovery. Future approaches will probably integrate proteomic, transcriptomic and multiplex approaches to detect novel biomarkers, and aim to identify combinations of multiple biomarkers to optimize the detection of prostate cancer. In addition, an unmet need remains for markers that differentiate indolent from aggressive cancers, to better inform treatment decisions.
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Affiliation(s)
- Guillaume Ploussard
- INSERM U955 Eq07, Department of Urology, APHP, CHU Henri Mondor, 51 Avenue du Maréchal de Lattre de Tassigny, 94000 Créteil, France
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Drake RR, White KY, Fuller TW, Igwe E, Clements MA, Nyalwidhe JO, Given RW, Lance RS, Semmes OJ. Clinical collection and protein properties of expressed prostatic secretions as a source for biomarkers of prostatic disease. J Proteomics 2009; 72:907-17. [PMID: 19457353 DOI: 10.1016/j.jprot.2009.01.007] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Revised: 12/25/2008] [Accepted: 01/04/2009] [Indexed: 12/14/2022]
Abstract
The prostate gland secretes many proteins in a prostatic fluid that combines with seminal vesicle derived fluids to promote sperm activation and function. Proximal fluids of the prostate that can be collected clinically are seminal plasma and expressed-prostatic secretion (EPS) fluids. EPS represents the fluid being secreted by the prostate following a digital rectal prostate massage, which in turn can be collected in voided urine post-exam. This collection is not disruptive to a standard urological exam, and it can be repeatedly collected from men across all prostatic disease states. A direct EPS fluid can also be collected under anesthesia prior to prostatectomy. While multiple genetic assays for prostate cancer detection are being developed for the shed epithelial cell fraction of EPS urines, the remaining fluid that contains many prostate-derived proteins has been minimally characterized. Approaches to optimization and standardization of EPS collection consistent with current urological exam and surgical practices are described, and initial proteomic and glycomic evaluations of the of EPS fluid are summarized for prostate specific antigen and prostatic acid phosphatase. Continued characterization of the prostate specific protein components of EPS urine combined with optimization of clinical collection procedures should facilitate discovery of new biomarkers for prostate cancer.
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Affiliation(s)
- Richard R Drake
- Department of Microbiology and Molecular Cell Biology, Center for Biomedical Proteomics, Eastern Virginia Medical School, Norfolk, Virginia 23507, USA.
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