1
|
Martelin N, De Witt B, Chen B, Eschwège P. Development and validation of an imageless machine-learning algorithm for the initial screening of prostate cancer. Prostate 2024; 84:842-849. [PMID: 38571454 DOI: 10.1002/pros.24703] [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: 09/14/2022] [Revised: 06/02/2023] [Accepted: 03/20/2024] [Indexed: 04/05/2024]
Abstract
PURPOSE Prostate specific antigen (PSA) testing is a low-cost screening method for prostate cancer (PCa). However, its accuracy is limited. While progress is being made using medical imaging for PCa screening, PSA testing can still be improved as an easily accessible first step in the screening process. We aimed to develop and validate a new model by further personalizing the analysis of PSA with demographic, medical history, lifestyle parameters, and digital rectal examination (DRE) results. METHODS Using data from 34,224 patients in the screening arm of the PLCO trial (22,188 for the training set and 12,036 for the validation set), we applied a gradient-boosting model whose features (Model 1) were one PSA value and the personal variables available in the PLCO trial except those that signaled an ex-ante assumption of PCa. A second algorithm (Model 2) included a DRE result. The primary outcome was the occurrence of PCa, while the aggressiveness of PCa was a secondary outcome. ROC analyses were used to compare both models to other initial screening tests. RESULTS The areas under the curve (AUC) for Model 2 was 0.894 overall and 0.908 for patients with a suspicious DRE, compared to 0.808 for PSA for patients with a suspicious DRE. The AUC for Model 1 was 0.814 compared to 0.821 for PSA. Model 2 predicted 58% more high-risk PCa than PSA ≥4 combined with an abnormal DRE and had a positive predictive value of 74.7% (vs. 50.6%). CONCLUSION Personalizing the interpretation of PSA values and DRE results with a gradient-boosting model showed promising results as a potential novel, low-cost method for the initial screening of PCa. The importance of DRE, when included in such a model, was also highlighted.
Collapse
Affiliation(s)
| | | | | | - Pascal Eschwège
- Urology Department, Nancy University Hospital, Vandœuvre-lès-Nancy, France
- Unité de Biologie des Tumeurs, CRAN UMR 7039 CNRS, Institut de cancérologie de Lorraine, Vandoeuvre-Lès-Nancy, France
| |
Collapse
|
2
|
Lee KY, Kim SH, Yang WK, Lee GJ. Effect of Tetragonia tetragonoides (Pall.) Kuntze Extract on Andropause Symptoms. Nutrients 2022; 14:4572. [PMID: 36364834 PMCID: PMC9659158 DOI: 10.3390/nu14214572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/10/2022] [Accepted: 10/26/2022] [Indexed: 10/15/2023] Open
Abstract
Testosterone and free testosterone levels decrease in men as they age, consequently inducing andropause symptoms, such as weight gain, fatigue, and depression. Therefore, this study aimed to evaluate the reducing effect of New Zealand spinach (NZS) on these androgenic symptoms by orally administering its extract to 26-week-old rats for four weeks. Biochemical blood testing was conducted, and the andropause symptoms-related indicators and muscular endurance levels were examined. In the NZS extract-treated rats, the decrease in muscle mass was suppressed, and immobility time was reduced in the forced swim test. In addition, the grip force and muscular endurance of the forelimbs were significantly increased compared to the control group; therefore, NZS extract exhibits a positive effect on the maintenance of muscle mass and improves muscular endurance. The representative male hormones, testosterone and progesterone, in the NZS extract-treated group were 1.84 times and 2.48 times higher than those in the control groups, respectively. Moreover, cholesterol and low-density lipoprotein, which affect lipid metabolism, were significantly reduced in the NZS extract-treated group. Overall, NZS extract shows potential for further development as a functional food material for improving muscle strength and relieving andropause symptoms.
Collapse
Affiliation(s)
- Ka Youn Lee
- Department of Horticulture, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
| | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon 34520, Korea
| | - Won-Kyung Yang
- Institute of Traditional Medicine and Bioscience, Daejeon University, 62 Daehak-ro, Dong-gu, Daejeon 34520, Korea
| | - Geung-Joo Lee
- Department of Horticulture, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
- Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Korea
| |
Collapse
|
3
|
Dell'Olio F, Su J, Huser T, Sottile V, Cortés-Hernández LE, Alix-Panabières C. Photonic technologies for liquid biopsies: recent advances and open research challenges. LASER & PHOTONICS REVIEWS 2021; 15:2000255. [PMID: 35360260 PMCID: PMC8966629 DOI: 10.1002/lpor.202000255] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The recent development of sophisticated techniques capable of detecting extremely low concentrations of circulating tumor biomarkers in accessible body fluids, such as blood or urine, could contribute to a paradigm shift in cancer diagnosis and treatment. By applying such techniques, clinicians can carry out liquid biopsies, providing information on tumor presence, evolution, and response to therapy. The implementation of biosensing platforms for liquid biopsies is particularly complex because this application domain demands high selectivity/specificity and challenging limit-of-detection (LoD) values. The interest in photonics as an enabling technology for liquid biopsies is growing owing to the well-known advantages of photonic biosensors over competing technologies in terms of compactness, immunity to external disturbance, and ultra-high spatial resolution. Some encouraging experimental results in the field of photonic devices and systems for liquid biopsy have already been achieved by using fluorescent labels and label-free techniques and by exploiting super-resolution microscopy, surface plasmon resonance, surface-enhanced Raman scattering, and whispering gallery mode resonators. This paper critically reviews the current state-of-the-art, starting from the requirements imposed by the detection of the most common circulating biomarkers. Open research challenges are considered together with competing technologies, and the most promising paths of improvement are discussed for future applications.
Collapse
Affiliation(s)
- Francesco Dell'Olio
- Department of Electrical and Information Engineering, Polytechnic University of Bari, 70125, Italy
| | - Judith Su
- Department of Biomedical Engineering, College of Optical Sciences, and BIO5 Institute, University of Arizona, 85721, USA
| | - Thomas Huser
- Biomolecular Photonics, Department of Physics, University of Bielefeld, 33615 Germany
| | - Virginie Sottile
- Department of Molecular Medicine, University of Pavia, 27100, Italy
| | | | - Catherine Alix-Panabières
- Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Center of Montpellier, 34093 CEDEX 5, France
| |
Collapse
|
4
|
Tonry C, Finn S, Armstrong J, Pennington SR. Clinical proteomics for prostate cancer: understanding prostate cancer pathology and protein biomarkers for improved disease management. Clin Proteomics 2020; 17:41. [PMID: 33292167 PMCID: PMC7678104 DOI: 10.1186/s12014-020-09305-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/11/2020] [Indexed: 12/12/2022] Open
Abstract
Following the introduction of routine Prostate Specific Antigen (PSA) screening in the early 1990′s, Prostate Cancer (PCa) is often detected at an early stage. There are also a growing number of treatment options available and so the associated mortality rate is generally low. However, PCa is an extremely complex and heterogenous disease and many patients suffer disease recurrence following initial therapy. Disease recurrence commonly results in metastasis and metastatic PCa has an average survival rate of just 3–5 years. A significant problem in the clinical management of PCa is being able to differentiate between patients who will respond to standard therapies and those who may benefit from more aggressive intervention at an earlier stage. It is also acknowledged that for many men the disease is not life threatenting. Hence, there is a growing desire to identify patients who can be spared the significant side effects associated with PCa treatment until such time (if ever) their disease progresses to the point where treatment is required. To these important clinical needs, current biomarkers and clinical methods for patient stratification and personlised treatment are insufficient. This review provides a comprehensive overview of the complexities of PCa pathology and disease management. In this context it is possible to review current biomarkers and proteomic technologies that will support development of biomarker-driven decision tools to meet current important clinical needs. With such an in-depth understanding of disease pathology, the development of novel clinical biomarkers can proceed in an efficient and effective manner, such that they have a better chance of improving patient outcomes.
Collapse
Affiliation(s)
- Claire Tonry
- UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Stephen Finn
- Department of Histopathology and Morbid Anatomy, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin 8, Ireland
| | | | | |
Collapse
|
5
|
Viste E, Vinje CA, Lid TG, Skeie S, Evjen-Olsen Ø, Nordström T, Thorsen O, Gilje B, Janssen EAM, Kjosavik SR. Effects of replacing PSA with Stockholm3 for diagnosis of clinically significant prostate cancer in a healthcare system - the Stavanger experience. Scand J Prim Health Care 2020; 38:315-322. [PMID: 32772613 PMCID: PMC7470071 DOI: 10.1080/02813432.2020.1802139] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE To describe early experience of replacing PSA with Stockholm3 for detection of prostate cancer in primary care. DESIGN AND METHODS Longitudinal observations, comparing outcome measures before and after the implementation of Stockholm3. SETTING Stavanger region in Norway with about 370,000 inhabitants, 304 general practitioners (GPs) in 97 primary care clinics, and one hospital. INTERVENTION GPs were instructed to use Stockholm3 instead of PSA as standard procedure for diagnosis of prostate cancer. MAIN OUTCOME MEASURES Proportion of GP clinics that had ordered a Stockholm3 test. Number of men referred to needle biopsy. Distribution of clinically significant prostate cancer (csPC) (Gleason Score ≥7) and clinically non-significant prostate cancer (cnsPC) (Gleason Score 6), in needle biopsies. Estimation of direct healthcare costs. RESULTS Stockholm3 was rapidly implemented as 91% (88/97) of the clinics started to use the test within 14 weeks. After including 4784 tested men, the percentage who would have been referred for prostate needle biopsy was 29.0% (1387/4784) if based on PSA level ≥3ng/ml, and 20.8% (995/4784) if based on Stockholm3 Risk Score (p < 0.000001). The proportion of positive biopsies with csPC increased from 42% (98/233) before to 65% (185/285) after the implementation. Correspondingly, the proportion of cnsPC decreased from 58% (135/233) before to 35% (100/285) after the implementation (p < 0.0017). Direct healthcare costs were estimated to be reduced by 23-28% per tested man. CONCLUSION Replacing PSA with Stockholm3 for early detection of prostate cancer in primary care is feasible. Implementation of Stockholm3 resulted in reduced number of referrals for needle-biopsy and a higher proportion of clinically significant prostate cancer findings in performed biopsies. Direct healthcare costs decreased. KEY POINTS A change from PSA to Stockholm3 for the diagnosis of prostate cancer in primary care in the Stavanger region in Norway is described and assessed. •Implementation of a new blood-based test for prostate cancer detection in primary care was feasible. A majority of GP clinics started to use the test within three months. •Implementation of the Stockholm3 test was followed by: -a 28% reduction in number of men referred for urological prostate cancer work-up -an increase in the proportion of clinically significant cancer in performed prostate biopsies from 42 to 65% -an estimated reduction in direct health care costs between 23 and 28%.
Collapse
Affiliation(s)
- Eirik Viste
- Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
- The General Practice and Care Coordination Research Group, Stavanger University Hospital, Stavanger, Norway
| | - Cathrine Alvaer Vinje
- Department of Urology, Stavanger University Hospital, Stavanger, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Torgeir Gilje Lid
- Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
- The General Practice and Care Coordination Research Group, Stavanger University Hospital, Stavanger, Norway
| | - Svein Skeie
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Research, Stavanger University Hospital, Stavanger, Norway
- CONTACT Svein R. Kjosavik The General Practice and Care Coordination Research Group, Stavanger University Hospital, P.O. Box 8100, Stavanger, 4068, Norway
| | - Øystein Evjen-Olsen
- Organization and Development Unit SUS 2023, Stavanger University Hospital, Stavanger, Norway
| | - Tobias Nordström
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Olav Thorsen
- Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
- The General Practice and Care Coordination Research Group, Stavanger University Hospital, Stavanger, Norway
| | - Bjørnar Gilje
- Department of Oncology, Stavanger University Hospital, Stavanger, Norway
| | - Emiel A. M. Janssen
- Department of Pathology, Stavanger University Hospital, Stavanger, Norway
- Faculty of Science and Technology, University of Stavanger, Stavanger, Norway
| | - Svein R. Kjosavik
- Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
- The General Practice and Care Coordination Research Group, Stavanger University Hospital, Stavanger, Norway
| |
Collapse
|
6
|
Frånlund M, Arnsrud Godtman R, Carlsson SV, Lilja H, Månsson M, Stranne J, Hugosson J. Prostate cancer risk assessment in men with an initial P.S.A. below 3 ng/mL: results from the Göteborg randomized population-based prostate cancer screening trial. Scand J Urol 2018; 52:256-262. [PMID: 30241447 DOI: 10.1080/21681805.2018.1508166] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To evaluate the long-term outcome of men with an initial prostate-specific antigen (PSA) level below 3 ng/mL and whether the free-to-total (F/T PSA) ratio is a useful prognostic marker in this range. MATERIALS AND METHODS This study is based on 5,174 men aged 50-66 years, who in 1995-1996 participated in the first round of the Göteborg randomized screening trial (initial T-PSA level <3 ng/mL). These men were subsequently invited biennially for PSA and F/T PSA screening until they reached the upper age limit (on average 69 years). Biopsy was recommended if PSA ≥ 3 ng/mL. RESULTS After a median follow-up of 18.9 years, 754 men (14.6%) were diagnosed with prostate cancer (PC). The overall cumulative PC incidence was 17.2%. It increased from 7.9% among men with T-PSA of ≤0.99 ng/mL to 26.0% in men with T-PSA levels of 1-1.99 ng/mL and 40.3% in men between 2-2.99 ng/mL (p < 0.001). The initial PSA was also related to the incidence of Gleason ≥7 PC (3.7% vs 9.7% vs 10.9%) and PC death (0.3% vs 1.1% vs 1.5%). Adding F/T PSA did not improve PC prediction in terms of Harrell concordance index (base model 0.76 vs 0.76) nor improvement of the likelihood of the model (p = 0.371). CONCLUSIONS Some men with initial PSA < 3 ng/mL will be diagnosed too late, despite participating in an organized screening program, indicating that prompt diagnosis is justified in these men. PC incidence and risk of PC death was associated with PSA., but F/T PSA had no predictive value.
Collapse
Affiliation(s)
- Maria Frånlund
- a Department of Urology , Institute of Clinical Sciences, Sahlgrenska Academy at the University of Göteborg, Sahlgrenska University Hospital , Göteborg , Sweden
| | - Rebecka Arnsrud Godtman
- a Department of Urology , Institute of Clinical Sciences, Sahlgrenska Academy at the University of Göteborg, Sahlgrenska University Hospital , Göteborg , Sweden
| | - Sigrid V Carlsson
- a Department of Urology , Institute of Clinical Sciences, Sahlgrenska Academy at the University of Göteborg, Sahlgrenska University Hospital , Göteborg , Sweden.,b Department of Surgery (Urology Service) and Department of Epidemiology and Biostatistics , Memorial Sloan-Kettering Cancer Center , New York , NY , U.S.A
| | - Hans Lilja
- c Departments of Laboratory Medicine, Surgery (Urology), and Medicine (GU-Oncology) , Memorial Sloan-Kettering Cancer Center , New York , NY , U.S.A.,d Nuffield Department of Surgical Sciences , University of Oxford , Oxford , U.K.,e Department of Translational Medicine , Lund University, Skåne University Hospital , Malmö , Sweden
| | - Marianne Månsson
- a Department of Urology , Institute of Clinical Sciences, Sahlgrenska Academy at the University of Göteborg, Sahlgrenska University Hospital , Göteborg , Sweden
| | - Johan Stranne
- a Department of Urology , Institute of Clinical Sciences, Sahlgrenska Academy at the University of Göteborg, Sahlgrenska University Hospital , Göteborg , Sweden
| | - Jonas Hugosson
- a Department of Urology , Institute of Clinical Sciences, Sahlgrenska Academy at the University of Göteborg, Sahlgrenska University Hospital , Göteborg , Sweden
| |
Collapse
|
7
|
Adeola HA, Smith M, Kaestner L, Blackburn JM, Zerbini LF. Novel potential serological prostate cancer biomarkers using CT100+ cancer antigen microarray platform in a multi-cultural South African cohort. Oncotarget 2017; 7:13945-64. [PMID: 26885621 PMCID: PMC4924690 DOI: 10.18632/oncotarget.7359] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/1969] [Accepted: 01/29/2016] [Indexed: 12/17/2022] Open
Abstract
There is a growing need for high throughput diagnostic tools for early diagnosis and treatment monitoring of prostate cancer (PCa) in Africa. The role of cancer-testis antigens (CTAs) in PCa in men of African descent is poorly researched. Hence, we aimed to elucidate the role of 123 Tumour Associated Antigens (TAAs) using antigen microarray platform in blood samples (N = 67) from a South African PCa, Benign prostatic hyperplasia (BPH) and disease control (DC) cohort. Linear (fold-over-cutoff) and differential expression quantitation of autoantibody signal intensities were performed. Molecular signatures of candidate PCa antigen biomarkers were identified and analyzed for ethnic group variation. Potential cancer diagnostic and immunotherapeutic inferences were drawn. We identified a total of 41 potential diagnostic/therapeutic antigen biomarkers for PCa. By linear quantitation, four antigens, GAGE1, ROPN1, SPANXA1 and PRKCZ were found to have higher autoantibody titres in PCa serum as compared with BPH where MAGEB1 and PRKCZ were highly expressed. Also, p53 S15A and p53 S46A were found highly expressed in the disease control group. Statistical analysis by differential expression revealed twenty-four antigens as upregulated in PCa samples, while 11 were downregulated in comparison to BPH and DC (FDR = 0.01). FGFR2, COL6A1and CALM1 were verifiable biomarkers of PCa analysis using urinary shotgun proteomics. Functional pathway annotation of identified biomarkers revealed similar enrichment both at genomic and proteomic level and ethnic variations were observed. Cancer antigen arrays are emerging useful in potential diagnostic and immunotherapeutic antigen biomarker discovery.
Collapse
Affiliation(s)
- Henry A Adeola
- International Centre for Genetic Engineering and Biotechnology, Cape Town, South Africa.,Faculty of Health Sciences, Division of Medical Biochemistry, Institute of Infectious Diseases & Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Muneerah Smith
- Faculty of Health Sciences, Division of Medical Biochemistry, Institute of Infectious Diseases & Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Lisa Kaestner
- Urology Department, Grootes Schuur Hospital, Cape Town, South Africa
| | - Jonathan M Blackburn
- Faculty of Health Sciences, Division of Medical Biochemistry, Institute of Infectious Diseases & Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - Luiz F Zerbini
- International Centre for Genetic Engineering and Biotechnology, Cape Town, South Africa.,Faculty of Health Sciences, Division of Medical Biochemistry, Institute of Infectious Diseases & Molecular Medicine, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
8
|
Barnett CL, Tomlins SA, Underwood DJ, Wei JT, Morgan TM, Montie JE, Denton BT. Two-Stage Biomarker Protocols for Improving the Precision of Early Detection of Prostate Cancer. Med Decis Making 2017; 37:815-826. [DOI: 10.1177/0272989x17696996] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background. New cancer biomarkers are being discovered at a rapid pace; however, these tests vary in their predictive performance characteristics, and it is unclear how best to use them. Methods. We investigated 2-stage biomarker-based screening strategies in the context of prostate cancer using a partially observable Markov model to simulate patients’ progression through prostate cancer states to mortality from prostate cancer or other causes. Patients were screened every 2 years from ages 55 to 69. If the patient’s serum prostate-specific antigen (PSA) was over a specified threshold in the first stage, a second stage biomarker test was administered. We evaluated design characteristics for these 2-stage strategies using 7 newly discovered biomarkers as examples. Monte Carlo simulation was used to estimate the number of screening biopsies, prostate cancer deaths, and quality-adjusted life-years (QALYs) per 1000 men. Results. The all-cancer biomarkers significantly underperformed the high-grade cancer biomarkers in terms of QALYs. The screening strategy that used a PSA threshold of 2 ng/mL and a second biomarker test with high-grade sensitivity and specificity of 0.86 and 0.62, respectively, maximized QALYs. This strategy resulted in a prostate cancer death rate within 1% of using PSA alone with a threshold of 2 ng/mL, while reducing the number of biopsies by 20%. Sensitivity analysis suggests that the results are robust with respect to variation in model parameters. Conclusions. Two-stage biomarker screening strategies using new biomarkers with risk thresholds optimized for high-grade cancer detection may increase quality-adjusted survival and reduce unnecessary biopsies.
Collapse
Affiliation(s)
- Christine L. Barnett
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI (CLB, BTD)
- Department of Urology, University of Michigan, Ann Arbor, MI (SAT, JTW, TMM, JEM, BTD)
- Department of Pathology, University of Michigan, Ann Arbor, MI (SAT)
- Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC (DJU)
| | - Scott A. Tomlins
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI (CLB, BTD)
- Department of Urology, University of Michigan, Ann Arbor, MI (SAT, JTW, TMM, JEM, BTD)
- Department of Pathology, University of Michigan, Ann Arbor, MI (SAT)
- Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC (DJU)
| | - Daniel J. Underwood
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI (CLB, BTD)
- Department of Urology, University of Michigan, Ann Arbor, MI (SAT, JTW, TMM, JEM, BTD)
- Department of Pathology, University of Michigan, Ann Arbor, MI (SAT)
- Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC (DJU)
| | - John T. Wei
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI (CLB, BTD)
- Department of Urology, University of Michigan, Ann Arbor, MI (SAT, JTW, TMM, JEM, BTD)
- Department of Pathology, University of Michigan, Ann Arbor, MI (SAT)
- Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC (DJU)
| | - Todd M. Morgan
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI (CLB, BTD)
- Department of Urology, University of Michigan, Ann Arbor, MI (SAT, JTW, TMM, JEM, BTD)
- Department of Pathology, University of Michigan, Ann Arbor, MI (SAT)
- Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC (DJU)
| | - James E. Montie
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI (CLB, BTD)
- Department of Urology, University of Michigan, Ann Arbor, MI (SAT, JTW, TMM, JEM, BTD)
- Department of Pathology, University of Michigan, Ann Arbor, MI (SAT)
- Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC (DJU)
| | - Brian T. Denton
- Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI (CLB, BTD)
- Department of Urology, University of Michigan, Ann Arbor, MI (SAT, JTW, TMM, JEM, BTD)
- Department of Pathology, University of Michigan, Ann Arbor, MI (SAT)
- Department of Industrial & Systems Engineering, North Carolina State University, Raleigh, NC (DJU)
| |
Collapse
|
9
|
Tonry CL, Leacy E, Raso C, Finn SP, Armstrong J, Pennington SR. The Role of Proteomics in Biomarker Development for Improved Patient Diagnosis and Clinical Decision Making in Prostate Cancer. Diagnostics (Basel) 2016; 6:E27. [PMID: 27438858 PMCID: PMC5039561 DOI: 10.3390/diagnostics6030027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/28/2016] [Accepted: 07/07/2016] [Indexed: 02/06/2023] Open
Abstract
Prostate Cancer (PCa) is the second most commonly diagnosed cancer in men worldwide. Although increased expression of prostate-specific antigen (PSA) is an effective indicator for the recurrence of PCa, its intended use as a screening marker for PCa is of considerable controversy. Recent research efforts in the field of PCa biomarkers have focused on the identification of tissue and fluid-based biomarkers that would be better able to stratify those individuals diagnosed with PCa who (i) might best receive no treatment (active surveillance of the disease); (ii) would benefit from existing treatments; or (iii) those who are likely to succumb to disease recurrence and/or have aggressive disease. The growing demand for better prostate cancer biomarkers has coincided with the development of improved discovery and evaluation technologies for multiplexed measurement of proteins in bio-fluids and tissues. This review aims to (i) provide an overview of these technologies as well as describe some of the candidate PCa protein biomarkers that have been discovered using them; (ii) address some of the general limitations in the clinical evaluation and validation of protein biomarkers; and (iii) make recommendations for strategies that could be adopted to improve the successful development of protein biomarkers to deliver improvements in personalized PCa patient decision making.
Collapse
Affiliation(s)
- Claire L Tonry
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Emma Leacy
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Cinzia Raso
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| | - Stephen P Finn
- School of Medicine, Trinity College Dublin, Dublin 2, Ireland.
| | | | - Stephen R Pennington
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland.
| |
Collapse
|
10
|
Cornu JN, Cancel-Tassin G, Cox DG, Roupret M, Koutlidis N, Bigot P, Valeri A, Ondet V, Gaffory C, Fournier G, Azzouzi AR, Cormier L, Cussenot O. Impact of Body Mass Index, Age, Prostate Volume, and Genetic Polymorphisms on Prostate-specific Antigen Levels in a Control Population. Eur Urol 2016; 70:6-8. [DOI: 10.1016/j.eururo.2016.01.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 01/15/2016] [Indexed: 11/30/2022]
|
11
|
Truong Q, Justiniano IO, Nocon AL, Soon JT, Wissmueller S, Campbell DH, Walsh BJ. Glypican-1 as a Biomarker for Prostate Cancer: Isolation and Characterization. J Cancer 2016; 7:1002-9. [PMID: 27313791 PMCID: PMC4910593 DOI: 10.7150/jca.14645] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 03/22/2016] [Indexed: 01/21/2023] Open
Abstract
Prostate cancer is the most frequently diagnosed male visceral cancer and the second leading cause of cancer death in the United States. Standard tests such as prostate-specific antigen (PSA) measurement have poor specificity (33%) resulting in a high number of false positive reports. Consequently there is a need for new biomarkers to address this problem. The MIL-38 antibody was first described nearly thirty years ago, however, until now, the identification of the target antigen remained elusive. By a series of molecular techniques and mass spectrometry, the MIL-38 antigen was identified to be the highly glycosylated proteoglycan Glypican-1 (GPC-1). This protein is present in two forms; a membrane bound core protein of 55-60 kDa and secreted soluble forms of 40 kDa and 52 kDa. GPC-1 identification was confirmed by immuno-precipitation, western blots and ELISA. An ELISA platform is currently being developed to assess the levels of GPC-1 in normal, benign prostatic hyperplasia (BPH) and prostate cancer patients to determine whether secreted GPC-1 may represent a clinically relevant biomarker for prostate cancer diagnosis.
Collapse
Affiliation(s)
- Quach Truong
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Irene O Justiniano
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Aline L Nocon
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Julie T Soon
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Sandra Wissmueller
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Douglas H Campbell
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Bradley J Walsh
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| |
Collapse
|
12
|
Abstract
Prostate cancer represents a spectrum ranging from low-grade, localized tumors to devastating metastatic disease. We discuss the general options for treatment and recent developments in the field.
Collapse
Affiliation(s)
- Katherine Cotter
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, 55455, USA
| | - Badrinath Konety
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, 55455, USA
| | - Maria A Ordonez
- Department of Urology, University of Minnesota, Minneapolis, Minnesota, 55455, USA
| |
Collapse
|
13
|
Taverna G, Cote RJ, Grizzi F. Editorial: Prostate Cancer: What We Know and What We Would Like to Know. Front Oncol 2015; 5:114. [PMID: 26052506 PMCID: PMC4440902 DOI: 10.3389/fonc.2015.00114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 05/05/2015] [Indexed: 11/13/2022] Open
Affiliation(s)
- Gianluigi Taverna
- Department of Urology, Humanitas Clinical and Research Center, Milan, Italy
| | - Richard J. Cote
- Department of Pathology, Dr. John T. Macdonald Foundation Biomedical Nanotechnology Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Fabio Grizzi
- Department of Inflammation and Immunology, Humanitas Clinical and Research Center, Milan, Italy
| |
Collapse
|