1
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Sekito S, Onishi T, Okamoto T, Terabe T, Kajiwara S, Shibahara T. Predictive Factors for Extracapsular Extension of Prostate Cancer to Select the Candidates for Nerve-sparing Radical Prostatectomy. Indian J Surg Oncol 2024; 15:213-217. [PMID: 38741620 PMCID: PMC11088566 DOI: 10.1007/s13193-024-01913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/27/2024] [Indexed: 05/16/2024] Open
Abstract
Nerve-sparing radical prostatectomy (NSRP) for prostate cancer (PC) enables better postoperative recovery of continence and potency but may increase the risk of positive surgical margins. This study aimed to investigate preoperative predictive factors for extracapsular extension (ECE) of PC to select patients for NSRP. We retrospectively evaluated 288 patients with PC (576 lobes) diagnosed with 12-core transrectal ultrasound-guided biopsy and magnetic resonance imaging (MRI) who underwent laparoscopic or robot-assisted radical prostatectomy at our institution. Surgical specimens and preoperative parameters (prostate-specific antigen, prostate volume, biopsy and MRI findings, preoperative therapy) were analyzed. Of 576 prostate lobes, the incidence Ipsilateral ECE was identified in 97 (16.8%) lobes. The higher number of unilateral positive biopsy cores, the highest Gleason score 8 or more and positive unilateral findings on MRI are significant higher in prostate sides with ECE in univariate analysis. In multivariate analysis, positive unilateral MRI findings (odds ratio [OR], 2.86; p < 0.001) and unilateral biopsy positive core ≥ 3 (OR, 3.73; p < 0.001) were independent predictors of unilateral ECE. The detection rate of unilateral ECE in those cases with two factors (side-specific positive biopsy core 2 or less and side-specific MRI findings negative) was 7.1% (19/269). Patients with fewer unilateral positive biopsy cores and negative unilateral MRI findings might be good candidates for NSRP.
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Affiliation(s)
- Sho Sekito
- Department Urology, Ise Red Cross Hospital, 471-2 Hunae, Ise, Mie 516-8512 Japan
| | - Takehisa Onishi
- Department Urology, Ise Red Cross Hospital, 471-2 Hunae, Ise, Mie 516-8512 Japan
| | - Takashi Okamoto
- Department Urology, Ise Red Cross Hospital, 471-2 Hunae, Ise, Mie 516-8512 Japan
| | - Takashi Terabe
- Department Urology, Ise Red Cross Hospital, 471-2 Hunae, Ise, Mie 516-8512 Japan
| | - Shinya Kajiwara
- Department Urology, Ise Red Cross Hospital, 471-2 Hunae, Ise, Mie 516-8512 Japan
| | - Takuji Shibahara
- Department Urology, Ise Red Cross Hospital, 471-2 Hunae, Ise, Mie 516-8512 Japan
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2
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Artificial Intelligence for Clinical Diagnosis and Treatment of Prostate Cancer. Cancers (Basel) 2022; 14:cancers14225595. [PMID: 36428686 PMCID: PMC9688370 DOI: 10.3390/cancers14225595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 11/16/2022] Open
Abstract
As medical science and technology progress towards the era of "big data", a multi-dimensional dataset pertaining to medical diagnosis and treatment is becoming accessible for mathematical modelling. However, these datasets are frequently inconsistent, noisy, and often characterized by a significant degree of redundancy. Thus, extensive data processing is widely advised to clean the dataset before feeding it into the mathematical model. In this context, Artificial intelligence (AI) techniques, including machine learning (ML) and deep learning (DL) algorithms based on artificial neural networks (ANNs) and their types, are being used to produce a precise and cross-sectional illustration of clinical data. For prostate cancer patients, datasets derived from the prostate-specific antigen (PSA), MRI-guided biopsies, genetic biomarkers, and the Gleason grading are primarily used for diagnosis, risk stratification, and patient monitoring. However, recording diagnoses and further stratifying risks based on such diagnostic data frequently involves much subjectivity. Thus, implementing an AI algorithm on a PC's diagnostic data can reduce the subjectivity of the process and assist in decision making. In addition, AI is used to cut down the processing time and help with early detection, which provides a superior outcome in critical cases of prostate cancer. Furthermore, this also facilitates offering the service at a lower cost by reducing the amount of human labor. Herein, the prime objective of this review is to provide a deep analysis encompassing the existing AI algorithms that are being deployed in the field of prostate cancer (PC) for diagnosis and treatment. Based on the available literature, AI-powered technology has the potential for extensive growth and penetration in PC diagnosis and treatment to ease and expedite the existing medical process.
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3
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Cavalca AMB, Aquino AM, Mosele FC, Justulin LA, Delella FK, Flaws JA, Scarano WR. Effects of a phthalate metabolite mixture on both normal and tumoral human prostate cells. ENVIRONMENTAL TOXICOLOGY 2022; 37:2566-2578. [PMID: 35861251 DOI: 10.1002/tox.23619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 06/29/2022] [Accepted: 07/03/2022] [Indexed: 06/15/2023]
Abstract
Phthalates represent a group of substances used in industry that have antiandrogenic activity and are found in different concentrations in human urine and plasma. More than 8 million tons of phthalates are used each year, predominantly as plasticizers in polyvinyl chloride (PVC) products. Phthalates are widely used in everyday consumer products and improperly discarded into the environment. Furthermore, in vivo studies carried out in our laboratory showed that a mixture of phthalates, equivalent to the mixture used in this study, deregulated the expression of genes and miRNAs associated with prostatic carcinogenic pathways. Thus, this study was designed to establish an in vitro model to assess pathways related to cell survival, proliferation, apoptosis, and biosynthesis of miRNAs, using both normal and tumoral prostatic epithelial cells exposed to an environmentally relevant mixture of phthalate metabolites. Tumor (LNCaP) and normal (PNT-2) prostatic epithelial cell lines were exposed for 24 and 72 h to vehicle control or the phthalate mixture. The selected metabolite mixture (1000 μmol/L) consisted of 36.7% monoethyl phthalate (MEP), 19.4% mono(2-ethylhexyl) phthalate (MEHP), 15.3% monobutyl phthalate (MBP), 10.2% monoisobutyl phthalate (MiBP), 10.2% monoisononyl phthalate (MiNP), and 8.2% monobenzyl phthalate (MBzP). Gene expression was performed by qRT-PCR and cell migratory potential was measured using cell migration assays. Our results showed that the mixture of phthalates increased cell turnover, oxidative stress, biosynthesis, and expression of miRNAs in LNCaP cells; thus, increasing their cellular expansive and migratory potential and modulating tumor behavior, making them possibly more aggressive. However, these effects were less pronounced in benign cells, demonstrating that, in the short term, benign cells are able to develop effective mechanisms or more resistance against the insult.
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Affiliation(s)
- Alexandre M B Cavalca
- Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Ariana M Aquino
- Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Francielle C Mosele
- Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Luis A Justulin
- Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Flávia K Delella
- Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, Brazil
| | - Jodi A Flaws
- Department of Comparative Biosciences, University of Illinois at Urbana-Champaign, Champaign, Illinois, USA
| | - Wellerson R Scarano
- Department of Structural and Functional Biology, Institute of Biosciences, Sao Paulo State University (UNESP), Botucatu, Brazil
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4
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Ozdemir S, Ersay AR, Koc Ozturk F, Ozdemir BS. Predictive value of standard serum markers for bone metastases in prostate cancer. AFRICAN JOURNAL OF UROLOGY 2021. [DOI: 10.1186/s12301-021-00170-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Abstract
Background
The early detection of bone metastases is very important in prostate cancer follow-up. This study aimed to compare conventional tumor markers, namely free prostate-specific antigen (free PSA), total prostate-specific antigen (total PSA), free PSA/total PSA ratio, alkaline phosphatase (ALP) values, Gleason scores and 99 m Tc-MDP bone scintigraphy findings in the prediction of bone metastases in prostate cancer.
Methods
In total, 175 patients with prostate cancer who underwent whole-body bone scintigraphy were included in the study. All selected scintigraphic studies were reprocessed. Free PSA, total PSA, free PSA/total PSA ratio, alkaline phosphatase (ALP) values and Gleason scores of patients were recorded.
Results
The results of our study show that the presence of bone metastasis correlates very weakly with free PSA/total PSA ratio (rho = 0.179), weakly with total PSA (rho = 0.318) and Gleason score (rho = 0.382), moderately with ALP (rho = 0.539), free PSA (0.416). Only ALP variable had a diagnostic value and ALP cutoff value was 76.50 IU/L, with 80% sensitivity and 82.1% specificity.
Conclusion
According to the results of our study; the free PSA, total PSA, free PSA/total PSA ratio and Gleason score values were not considered as a reliable parameter in the prostate cancer cases follow-up for bone metastasis development. Only ALP had a diagnostic value and ALP cutoff value was 76.50 IU / L with 80% sensitivity and 82.1% specificity in predicting bone metastases in prostate cancer.
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5
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Review of novel liquid-based biomarkers for prostate cancer: towards personalised and targeted medicine. JOURNAL OF RADIOTHERAPY IN PRACTICE 2021. [DOI: 10.1017/s1460396921000248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Background:
Prostate cancer is the most commonly diagnosed cancer in men and it is responsible for about 10% of all cancer mortalities in both American and Canadian men. At present, serum prostate-specific antigen levels remain the most commonly used test to detect prostate cancer, and the standard and definitive diagnosis of the disease is via prostate biopsy. Conventional tissue biopsies are usually invasive, expensive, painful, time-consuming, and unsuitable for screening and need to be consistently evaluated by expert pathologists and have limited repeatability. Consequently, liquid biopsies are emerging as a favourable alternative to conventional tissue biopsies, providing a non-invasive and cost-effective approach for screening, diagnosis, treatment and monitoring of prostate cancer patients.
Materials and methods:
We searched several databases from August to December 2020 for relevant studies published in English between 2000 and 2020 and reporting on liquid-based biomarkers available in detectable quantities in patient bodily fluid samples. In this narrative review paper, we describe seven novel and promising liquid-based biomarkers that potentially account for individual patient variability as well as used in disease risk assessment, screening for early disease detection and diagnosis, identification of patients’ risk for metastatic disease and subsequent relapse, monitoring patient response to specific treatment and providing clinicians the potential to stratify patients likely to benefit from a particular treatment.
Conclusions:
The concept of precision medicine from prevention to treatment techniques that take individual patient variability into account will depend on the development of effective clinical biomarkers that interrogate key aberrant pathways potentially targetable with molecular targets or immunologic therapies. Liquid-based biomarkers with high sensitivity and specificity for prostate cancer are emerging as minimally invasive, lower risk, readily obtainable and easily repeatable technique for screening for early disease detection and diagnosis, patient stratification at diagnosis into different risk categories, identification of patients’ risk for metastatic disease and subsequent relapse, and real-time monitoring of patient response to specific treatment. Thus, effective liquid-based biomarkers will potentially shift the treatment paradigm of prostate cancer towards more personalised and targeted medicine.
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6
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Van Booven DJ, Kuchakulla M, Pai R, Frech FS, Ramasahayam R, Reddy P, Parmar M, Ramasamy R, Arora H. A Systematic Review of Artificial Intelligence in Prostate Cancer. Res Rep Urol 2021; 13:31-39. [PMID: 33520879 PMCID: PMC7837533 DOI: 10.2147/rru.s268596] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 01/11/2021] [Indexed: 12/12/2022] Open
Abstract
The diagnosis and management of prostate cancer involves the interpretation of data from multiple modalities to aid in decision making. Tools like PSA levels, MRI guided biopsies, genomic biomarkers, and Gleason grading are used to diagnose, risk stratify, and then monitor patients during respective follow-ups. Nevertheless, diagnosis tracking and subsequent risk stratification often lend itself to significant subjectivity. Artificial intelligence (AI) can allow clinicians to recognize difficult relationships and manage enormous data sets, which is a task that is both extraordinarily difficult and time consuming for humans. By using AI algorithms and reducing the level of subjectivity, it is possible to use fewer resources while improving the overall efficiency and accuracy in prostate cancer diagnosis and management. Thus, this systematic review focuses on analyzing advancements in AI-based artificial neural networks (ANN) and their current role in prostate cancer diagnosis and management.
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Affiliation(s)
- Derek J Van Booven
- John P Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Manish Kuchakulla
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Raghav Pai
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Fabio S Frech
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Reshna Ramasahayam
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Pritika Reddy
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Madhumita Parmar
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Ranjith Ramasamy
- Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA.,The Interdisciplinary Stem Cell Institute, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Himanshu Arora
- John P Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA.,Department of Urology, Miller School of Medicine, University of Miami, Miami, FL, USA.,The Interdisciplinary Stem Cell Institute, Miller School of Medicine, University of Miami, Miami, FL, USA
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7
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A review of current clinical biomarkers for prostate cancer: towards personalised and targeted therapy. JOURNAL OF RADIOTHERAPY IN PRACTICE 2020. [DOI: 10.1017/s1460396920001168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract
Background:
Prostate cancer is the most commonly diagnosed cancer in men and it is responsible for about 10% of all cancer mortality in Canadian men. The current ‘gold standard’ for the diagnosis of prostate cancer is a prostate biopsy and the decision on when to biopsy a patient with non-suspicious Digital Rectal Examination (DRE) result and total prostate specific antigen (tPSA) of 4–10 ng/ml can be challenging. In order to shift the treatment paradigm of prostate cancer toward more personalised and targeted therapy, there is the need for a clear system that makes its detection binary so as to decrease the rate of inaccurate detections. Therefore in recent years, there have been several investigations into the development of various biomarkers with high sensitivity and specificity for screening, early detection and personalised patient-specific targeted medicine from diagnosis to treatment of the disease.
Materials and methods:
This paper reports on nine currently available clinical biomarkers used in screening for early detection and diagnosis, to reduce the number of unnecessary biopsies, in risk assessment of aggressive disease and in monitoring treatment response of prostate cancer.
Conclusion:
Current clinical prostate cancer biomarkers have the potential for a personalised risk assessment of aggressive disease and the risk of developing distant metastatic disease and have been proven to be useful tools to guide clinicians in personalised patient-specific targeted treatment and in the shared decision making between patients and their physicians regarding prostate biopsy and treatment. Using biomarkers to select patients with a significant probability of aggressive prostate cancer would potentially avoid premature death from the disease, while at the same time would safely preclude patients who do not require unnecessary invasive intervention.
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8
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Takahara K, Sumitomo M, Fukaya K, Jyoudai T, Nishino M, Hikichi M, Zennami K, Nukaya T, Ichino M, Fukami N, Sasaki H, Kusaka M, Shiroki R. Clinical and oncological outcomes of robot-assisted radical prostatectomy with nerve sparing vs. non-nerve sparing for high-risk prostate cancer cases. Oncol Lett 2019; 18:3896-3902. [PMID: 31579411 DOI: 10.3892/ol.2019.10692] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 06/28/2019] [Indexed: 01/09/2023] Open
Abstract
Robot-assisted radical prostatectomy (RARP) is one of the most widely used procedures for localized prostate cancer (PCa). In the present study, the clinical and oncological outcomes of RARP with bilateral or unilateral nerve sparing (NS) for D'Amico high-risk PCa cases were assessed. Among the 767 cases who received RARP at Fujita Health University Hospital between August 2009 and December 2016, 230 high-risk PCa cases who were observed for >6 months comprised the retrospective study cohort. Bilateral NS was performed with the bilateral neurovascular bundle in eight, unilateral in 125 and none in 97 cases. Perioperative parameters [surgery time, console time, estimated blood loss, pathological stage, positive lymph node metastases [pN (+)], and surgical margin positivity] did not exhibit significant differences between the NS and non-NS cohorts. During a median follow-up time of 25 months, the 1- and 3-year biochemical recurrence (BCR)-free survival rates in the NS/non-NS cohorts were 84.4/86.0 and 72.7/75.0%, respectively. There were no significant differences identified between the two groups at each time period. According to multivariate analysis, the resection margin was an important factor for time to BCR, regardless of the NS technique used. The numbers of pads used daily at 3 and 6 months after RARP between the NS/non-NS cohorts were 1.1/1.5 and 0.6/1.0, respectively (P=0.045 and P=0.009), suggesting that the NS technique resulted in significantly improved outcomes regarding urinary continence recovery. In selected high-risk PCa cases, the NS technique resulted in equivalent oncological outcomes and improved urinary continence compared with the non-NS RARP group.
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Affiliation(s)
- Kiyoshi Takahara
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Makoto Sumitomo
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Kosuke Fukaya
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Takahito Jyoudai
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Masashi Nishino
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Masaru Hikichi
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Kenji Zennami
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Takuhisa Nukaya
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Manabu Ichino
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Naohiko Fukami
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Hitomi Sasaki
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Mamoru Kusaka
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
| | - Ryoichi Shiroki
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi 470-1192, Japan
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9
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Musavi H, Fattah A, Abbasi M. Differential Expression of the KLK2 and KLK3 Genes in Peripheral Blood and Tissues Samples of Iranian Patients with Prostate Cancer. MEDICAL LABORATORY JOURNAL 2019. [DOI: 10.29252/mlj.13.3.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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10
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Parnes HL. Commentary: Prostate cancer screening-A long run for a short slide. Semin Oncol 2017; 44:57-59. [PMID: 28395764 DOI: 10.1053/j.seminoncol.2017.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Howard L Parnes
- Prostate and Urologic Cancer Research Group, Division of Cancer Prevention, National Cancer Institute Bethesda, MD.
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11
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Dong J, Ueda H. ELISA-type assays of trace biomarkers using microfluidic methods. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2017; 9. [DOI: 10.1002/wnan.1457] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 11/15/2016] [Accepted: 12/17/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Jinhua Dong
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers; College of Chemistry and Chemical Engineering, Linyi University; Linyi P.R. China
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; Yokohama Japan
| | - Hiroshi Ueda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research; Tokyo Institute of Technology; Yokohama Japan
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12
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Affiliation(s)
- Xiaolei Shi
- a Department of Urology , Changhai Hospital, Second Military Medical University , Shanghai , P. R. China
| | - Shancheng Ren
- a Department of Urology , Changhai Hospital, Second Military Medical University , Shanghai , P. R. China
| | - Yinghao Sun
- a Department of Urology , Changhai Hospital, Second Military Medical University , Shanghai , P. R. China
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13
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Øverbye A, Skotland T, Koehler CJ, Thiede B, Seierstad T, Berge V, Sandvig K, Llorente A. Identification of prostate cancer biomarkers in urinary exosomes. Oncotarget 2016. [PMID: 26196085 PMCID: PMC4745805 DOI: 10.18632/oncotarget.4851] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Exosomes have recently appeared as a novel source of non-invasive cancer biomarkers since tumour-specific molecules can be found in exosomes isolated from biological fluids. We have here investigated the proteome of urinary exosomes by using mass spectrometry to identify proteins differentially expressed in prostate cancer patients compared to healthy male controls. In total, 15 control and 16 prostate cancer samples of urinary exosomes were analyzed. Importantly, 246 proteins were differentially expressed in the two groups. The majority of these proteins (221) were up-regulated in exosomes from prostate cancer patients. These proteins were analyzed according to specific criteria to create a focus list that contained 37 proteins. At 100% specificity, 17 of these proteins displayed individual sensitivities above 60%. Even though several of these proteins showed high sensitivity and specificity for prostate cancer as individual biomarkers, combining them in a multi-panel test has the potential for full differentiation of prostate cancer from non-disease controls. The highest sensitivity, 94%, was observed for transmembrane protein 256 (TM256; chromosome 17 open reading frame 61). LAMTOR proteins were also distinctly enriched with very high specificity for patient samples. TM256 and LAMTOR1 could be used to augment the sensitivity to 100%. Other prominent proteins were V-type proton ATPase 16 kDa proteolipid subunit (VATL), adipogenesis regulatory factor (ADIRF), and several Rab-class members and proteasomal proteins. In conclusion, this study clearly shows the potential of using urinary exosomes in the diagnosis and clinical management of prostate cancer.
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Affiliation(s)
- Anders Øverbye
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Tore Skotland
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Christian J Koehler
- The Biotechnology Centre of Oslo, University of Oslo, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway
| | - Bernd Thiede
- The Biotechnology Centre of Oslo, University of Oslo, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway
| | - Therese Seierstad
- Department of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway
| | - Viktor Berge
- Department of Urology, Oslo University Hospital, Oslo, Norway
| | - Kirsten Sandvig
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Biosciences, University of Oslo, Oslo, Norway
| | - Alicia Llorente
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital-The Norwegian Radium Hospital, Oslo, Norway.,Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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14
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Rebelo TS, Noronha JP, Galésio M, Santos H, Diniz M, Sales MGF, Fernandes MH, Costa-Rodrigues J. Testing the variability of PSA expression by different human prostate cancer cell lines by means of a new potentiometric device employing molecularly antibody assembled on graphene surface. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:1069-1078. [DOI: 10.1016/j.msec.2015.11.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 10/30/2015] [Accepted: 11/11/2015] [Indexed: 01/07/2023]
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15
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Tompkins AJ, Chatterjee D, Maddox M, Wang J, Arciero E, Camussi G, Quesenberry PJ, Renzulli JF. The emergence of extracellular vesicles in urology: fertility, cancer, biomarkers and targeted pharmacotherapy. J Extracell Vesicles 2015; 4:23815. [PMID: 26134460 PMCID: PMC4488336 DOI: 10.3402/jev.v4.23815] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 01/29/2015] [Accepted: 05/12/2015] [Indexed: 01/02/2023] Open
Abstract
Extracellular vesicles (EV) are small membrane-bound vesicles enriched in a selective repertoire of mRNA, miRNA, proteins and cell surface receptors from parental cells and are actively involved in the transmission of inter and intracellular signals. Cancer cells produce EV that contain cargo including DNA, mRNA, miRNA and proteins that allow EV to create epigenetic changes in target cells both locally and systemically. Cancer-derived EV play critical roles in tumorigenesis, cancer cell migration, metastasis, evasion of host immune defense, chemoresistance, and they promote a premetastatic niche favourable to micrometastatic seeding. Their unique molecular profiles acquired from originator cells and their presence in numerous body fluids, including blood and urine, make them promising candidates as biomarkers for prostate, renal and bladder cancers. EV may ultimately serve as targets for therapy and as platforms for personalized medicine in urology. As urologic malignancy comprises 28% of new solid tumour diagnoses and 15% of cancer-related deaths, EV-related research is rapidly emerging and providing unique insights into disease progression. In this report, we review the current literature on EV in the setting of genitourinary fertility and malignancy.
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Affiliation(s)
- Andrew J Tompkins
- Division of Urology, Department of Surgery, The Miriam Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Devasis Chatterjee
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA;
| | - Michael Maddox
- Division of Urology, Department of Surgery, The Miriam Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Justin Wang
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Emily Arciero
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Giovanni Camussi
- Department of Internal Medicine, Faculty of Medicine and School of Biotechnology, University of Torino, Torino, Italy
| | - Peter J Quesenberry
- Division of Hematology/Oncology, Department of Medicine, Rhode Island Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Joseph F Renzulli
- Division of Urology, Department of Surgery, The Miriam Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA
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16
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Madaboosi N, Soares RRG, Chu V, Conde JP. A microfluidic immunoassay platform for the detection of free prostate specific antigen: a systematic and quantitative approach. Analyst 2015; 140:4423-33. [DOI: 10.1039/c5an00364d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel physisorption- and bio-affinity amplification-based microfluidic immunoassay platform for free PSA detection within a clinically relevant range is reported.
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Affiliation(s)
- Narayanan Madaboosi
- INESC Microsistemas e Nanotecnologias (INESC MN) and IN – Institute of Nanoscience and Nanotechnology
- Lisbon
- Portugal
| | - Ruben R. G. Soares
- INESC Microsistemas e Nanotecnologias (INESC MN) and IN – Institute of Nanoscience and Nanotechnology
- Lisbon
- Portugal
- iBB – Institute for Bioengineering and Biosciences
- Instituto Superior Técnico
| | - Virginia Chu
- INESC Microsistemas e Nanotecnologias (INESC MN) and IN – Institute of Nanoscience and Nanotechnology
- Lisbon
- Portugal
| | - João Pedro Conde
- INESC Microsistemas e Nanotecnologias (INESC MN) and IN – Institute of Nanoscience and Nanotechnology
- Lisbon
- Portugal
- Department of Bioengineering
- Instituto Superior Técnico
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17
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Bergamini S, Bellei E, Reggiani Bonetti L, Monari E, Cuoghi A, Borelli F, Sighinolfi MC, Bianchi G, Ozben T, Tomasi A. Inflammation: an important parameter in the search of prostate cancer biomarkers. Proteome Sci 2014; 12:32. [PMID: 24944525 PMCID: PMC4061775 DOI: 10.1186/1477-5956-12-32] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 05/30/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND A more specific and early diagnostics for prostate cancer (PCa) is highly desirable. In this study, being inflammation the focus of our effort, serum protein profiles were analyzed in order to investigate if this parameter could interfere with the search of discriminating proteins between PCa and benign prostatic hyperplasia (BPH). METHODS Patients with clinical suspect of PCa and candidates for trans-rectal ultrasound guided prostate biopsy (TRUS) were enrolled. Histological specimens were examined in order to grade and classify the tumor, identify BPH and detect inflammation. Surface Enhanced Laser Desorption/Ionization-Time of Flight-Mass Spectrometry (SELDI-ToF-MS) and two-dimensional gel electrophoresis (2-DE) coupled with Liquid Chromatography-MS/MS (LC-MS/MS) were used to analyze immuno-depleted serum samples from patients with PCa and BPH. RESULTS The comparison between PCa (with and without inflammation) and BPH (with and without inflammation) serum samples by SELDI-ToF-MS analysis did not show differences in protein expression, while changes were only observed when the concomitant presence of inflammation was taken into consideration. In fact, when samples with histological sign of inflammation were excluded, 20 significantly different protein peaks were detected. Subsequent comparisons (PCa with inflammation vs PCa without inflammation, and BPH with inflammation vs BPH without inflammation) showed that 16 proteins appeared to be modified in the presence of inflammation, while 4 protein peaks were not modified. With 2-DE analysis, comparing PCa without inflammation vs PCa with inflammation, and BPH without inflammation vs the same condition in the presence of inflammation, were identified 29 and 25 differentially expressed protein spots, respectively. Excluding samples with inflammation the comparison between PCa vs BPH showed 9 unique PCa proteins, 4 of which overlapped with those previously identified in the presence of inflammation, while other 2 were new proteins, not identified in our previous comparisons. CONCLUSIONS The present study indicates that inflammation might be a confounding parameter during the proteomic research of candidate biomarkers of PCa. These results indicate that some possible biomarker-candidate proteins are strongly influenced by the presence of inflammation, hence only a well-selected protein pattern should be considered for potential marker of PCa.
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Affiliation(s)
- Stefania Bergamini
- Department of Diagnostic Medicine, Clinic and Public Health, Proteomic Lab, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Elisa Bellei
- Department of Diagnostic Medicine, Clinic and Public Health, Proteomic Lab, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Luca Reggiani Bonetti
- Section of Pathologic Anatomy, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Emanuela Monari
- Department of Diagnostic Medicine, Clinic and Public Health, Proteomic Lab, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Aurora Cuoghi
- Department of Diagnostic Medicine, Clinic and Public Health, Proteomic Lab, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Francesco Borelli
- Department of Urology, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Maria Chiara Sighinolfi
- Department of Urology, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Giampaolo Bianchi
- Department of Urology, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Tomris Ozben
- Department of Biochemistry, Medical Faculty, Akdeniz University, Antalya, Turkey
| | - Aldo Tomasi
- Department of Diagnostic Medicine, Clinic and Public Health, Proteomic Lab, University Hospital of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
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18
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Boyce S, Fan Y, Watson RW, Murphy TB. Evaluation of prediction models for the staging of prostate cancer. BMC Med Inform Decis Mak 2013; 13:126. [PMID: 24238348 PMCID: PMC3834875 DOI: 10.1186/1472-6947-13-126] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 11/08/2013] [Indexed: 01/20/2023] Open
Abstract
Background There are dilemmas associated with the diagnosis and prognosis of prostate cancer which has lead to over diagnosis and over treatment. Prediction tools have been developed to assist the treatment of the disease. Methods A retrospective review was performed of the Irish Prostate Cancer Research Consortium database and 603 patients were used in the study. Statistical models based on routinely used clinical variables were built using logistic regression, random forests and k nearest neighbours to predict prostate cancer stage. The predictive ability of the models was examined using discrimination metrics, calibration curves and clinical relevance, explored using decision curve analysis. The N = 603 patients were then applied to the 2007 Partin table to compare the predictions from the current gold standard in staging prediction to the models developed in this study. Results 30% of the study cohort had non organ-confined disease. The model built using logistic regression illustrated the highest discrimination metrics (AUC = 0.622, Sens = 0.647, Spec = 0.601), best calibration and the most clinical relevance based on decision curve analysis. This model also achieved higher discrimination than the 2007 Partin table (ECE AUC = 0.572 & 0.509 for T1c and T2a respectively). However, even the best statistical model does not accurately predict prostate cancer stage. Conclusions This study has illustrated the inability of the current clinical variables and the 2007 Partin table to accurately predict prostate cancer stage. New biomarker features are urgently required to address the problem clinician’s face in identifying the most appropriate treatment for their patients. This paper also demonstrated a concise methodological approach to evaluate novel features or prediction models.
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Affiliation(s)
- Susie Boyce
- UCD School of Medicine and Medical Science, University College Dublin, Dublin, Ireland.
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19
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Eph receptors and their ligands: promising molecular biomarkers and therapeutic targets in prostate cancer. Biochim Biophys Acta Rev Cancer 2013; 1835:243-57. [PMID: 23396052 DOI: 10.1016/j.bbcan.2013.01.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/21/2013] [Accepted: 01/25/2013] [Indexed: 01/01/2023]
Abstract
Although at present, there is a high incidence of prostate cancer, particularly in the Western world, mortality from this disease is declining and occurs primarily only from clinically significant late stage tumors with a poor prognosis. A major current focus of this field is the identification of new biomarkers which can detect earlier, and more effectively, clinically significant tumors from those deemed "low risk", as well as predict the prognostic course of a particular cancer. This strategy can in turn offer novel avenues for targeted therapies. The large family of Receptor Tyrosine Kinases, the Ephs, and their binding partners, the ephrins, has been implicated in many cancers of epithelial origin through stimulation of oncogenic transformation, tumor angiogenesis, and promotion of increased cell survival, invasion and migration. They also show promise as both biomarkers of diagnostic and prognostic value and as targeted therapies in cancer. This review will briefly discuss the complex roles and biological mechanisms of action of these receptors and ligands and, with regard to prostate cancer, highlight their potential as biomarkers for both diagnosis and prognosis, their application as imaging agents, and current approaches to assessing them as therapeutic targets. This review demonstrates the need for future studies into those particular family members that will prove helpful in understanding the biology and potential as targets for treatment of prostate cancer.
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20
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Smith DW, Stoimenova D, Eid K, Barqawi A. The role of targeted focal therapy in the management of low-risk prostate cancer: update on current challenges. Prostate Cancer 2012; 2012:587139. [PMID: 23346405 PMCID: PMC3549346 DOI: 10.1155/2012/587139] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 12/12/2012] [Indexed: 11/17/2022] Open
Abstract
Prostate cancer is one of the most prevalent cancers among men in the United States, second only to nonmelanomatous skin cancer. Since prostate-specific antigen (PSA) testing came into widespread use in the late 1980s, there has been a sharp increase in annual prostate cancer incidence. Cancer-specific mortality, though, is relatively low. The majority of these cancers will not progress to mortal disease, yet most men who are diagnosed opt for treatment as opposed to observation or active surveillance (AS). These men are thus burdened with the morbidities associated with aggressive treatments, commonly incontinence and erectile dysfunction, without receiving a mortality benefit. It is therefore necessary to both continue investigating outcomes associated with AS and to develop less invasive techniques for those who desire treatment but without the significant potential for quality-of-life side effects seen with aggressive modalities. The goals of this paper are to discuss the problems of overdiagnosis and overtreatment since the advent of PSA screening as well as the potential for targeted focal therapy (TFT) to bridge the gap between AS and definitive therapies. Furthermore, patient selection criteria for TFT, costs, side effects, and brachytherapy template-guided three-dimensional mapping biopsies (3DMB) for tumor localization will also be explored.
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Affiliation(s)
- Daniel W. Smith
- Division of Urology, UC Denver School of Medicine, Academic Office One Building, Room 5602, 12631 East 17th Avenue C-319, Aurora, CO 80045, USA
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21
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Escandriolo Nackauzi JD, Colla RH, Ravazzani GR, Gaido MI, Bertolotto P, Actis AB. Prostate-specific antigen: its relationship with alcohol intake and tobacco. Med Oncol 2012; 29:823-6. [PMID: 21484082 DOI: 10.1007/s12032-011-9940-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Accepted: 03/30/2011] [Indexed: 11/26/2022]
Abstract
To determine the influence of alcohol and tobacco consumption on serum prostate-specific antigen (PSA) levels. 59 men participated in this study: 20 with prostate tumors (PT) and 39 without tumor diagnosis (prostate controls, PC) (mean 66 and 58 years, respectively). PSA was analyzed in serum samples and its values were compared through the Kruskal-Wallis nonparametric test. Alcohol and tobacco consumption was also considered. PSA mean value was higher than 4 ng/ml in PT, whereas in PC it was lower than that value. Statistically significant differences were found when comparing PSA between PT and PC (P < 0.05). PSA was higher in alcohol and tobacco consumers than in non-consumers in PT group (P < 0.05). For PC, PSA mean values were higher in non-smokers than in smokers. Statistically significant differences were observed for serum PSA when compared between PT and PC groups considering alcohol and tobacco consumption (P < 0.05). Serum PSA values appear to be influenced by alcohol and tobacco consumption.
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Affiliation(s)
- Jorge D Escandriolo Nackauzi
- Cátedra de Anatomía, Facultad de Odontología, Universidad Nacional de Córdoba, Av. Pueyrredón 2335, Bº Alto Alberdi, 5003 Córdoba, Argentina.
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22
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Current Challenges in Prostate Cancer Management and the Rationale behind Targeted Focal Therapy. Adv Urol 2012; 2012:862639. [PMID: 22649447 PMCID: PMC3357537 DOI: 10.1155/2012/862639] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/28/2012] [Accepted: 03/01/2012] [Indexed: 11/18/2022] Open
Abstract
Among men, prostate cancer has a high prevalence, with relatively lower cancer-specific mortality risk compared to lung and colon cancer. Prostate-specific antigen (PSA) screening has increased prostate cancer awareness since its implementation as a screening tool almost 25 years ago, but, due to the largely indolent course of this disease and the unspecific nature of the PSA test, increased incidence has largely been associated with cancers that would not go on to cause death (clinically insignificant), leading to an overdiagnosis challenge and an ensuing overtreatment consequences. The overtreatment problem is exacerbated by the high risk of side effects that current treatment techniques have, putting patients' quality of life at risk with little or no survival benefit. The goals of this paper are to evaluate the rise, prevalence, and impact of the overdiagnosis and ensuing overtreatment problems, as well as highlight potential solutions. In this effort, a review of major epidemiological and screening studies, cancer statistics from the advent of prostate-specific antigen screening to the present, and reports on patient concerns and treatment outcomes was conducted to present the dominant factors that underlie current challenges in prostate cancer treatment and illuminate potential solutions.
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23
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Sandvig K, Llorente A. Proteomic analysis of microvesicles released by the human prostate cancer cell line PC-3. Mol Cell Proteomics 2012; 11:M111.012914. [PMID: 22457534 DOI: 10.1074/mcp.m111.012914] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Cancer biomarkers are invaluable tools for cancer detection, prognosis, and treatment. Recently, microvesicles have appeared as a novel source for cancer biomarkers. We present here the results from a proteomic analysis of microvesicles released to the extracellular environment by the metastatic prostate cancer cell line PC-3. Using nanocapillary liquid chromatography-tandem mass spectrometry 266 proteins were identified with two or more peptide sequences. Further analysis showed that 16% of the proteins were classified as extracellular and that intracellular proteins were annotated in a variety of locations. Concerning biological processes, the proteins found in PC-3 cell-released microvesicles are mainly involved in transport, cell organization and biogenesis, metabolic process, response to stimulus, and regulation of biological processes. Several of the proteins identified (tetraspanins, annexins, Rab proteins, integrins, heat shock proteins, cytoskeletal proteins, 14-3-3 proteins) have previously been found in microvesicles isolated from other sources. However, some of the proteins seem to be more specific to the vesicular population released by the metastatic prostate cancer PC-3 cell line. Among these proteins are the tetraspanin protein CD151 and the glycoprotein CUB domain-containing protein 1. Interestingly, our results show these proteins are promising biomarkers for prostate cancer and therefore candidates for clinical validation studies in biological fluids.
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Affiliation(s)
- Kirsten Sandvig
- Department of Biochemistry, Institute for Cancer Research, Oslo University Hospital- The Norwegian Radium Hospital, 0379 Oslo, Norway
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24
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Lucs A, Saltman B, Chung CH, Steinberg BM, Schwartz DL. Opportunities and challenges facing biomarker development for personalized head and neck cancer treatment. Head Neck 2012; 35:294-306. [PMID: 22287320 DOI: 10.1002/hed.21975] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 09/08/2011] [Indexed: 12/25/2022] Open
Abstract
Head and neck oncologists have traditionally relied on clinical tumor features and patient characteristics to guide care of individual patients. As surgical, radiotherapeutic, and systemic treatments have evolved to become more anatomically precise and mechanistically specific, the opportunity for improved cure and functional patient recovery has never been more promising for this historically debilitating cancer. However, personalized treatment must be accompanied by sophisticated patient selection to triage the application of advanced therapies toward ideal patient candidates. In this monograph, we review current progress, investigative themes, and key challenges facing head and neck cancer biomarker development intended to make personalized head and neck cancer treatment a clinical reality.
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Affiliation(s)
- Alexandra Lucs
- The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Benjamin Saltman
- Department of Otolaryngology, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
| | - Christine H Chung
- Department of Oncology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bettie M Steinberg
- The Feinstein Institute for Medical Research, Manhasset, NY, USA.,Department of Otolaryngology, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
| | - David L Schwartz
- The Feinstein Institute for Medical Research, Manhasset, NY, USA.,Department of Otolaryngology, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA.,Department of Radiation Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, USA
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25
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Schmitt J, Heisel S, Keller A, Leidinger P, Ludwig N, Habel N, Furtwängler R, Nourkami-Tutdibi N, Wegert J, Grundy P, Gessler M, Graf N, Lenhof HP, Meese E. Multicenter study identified molecular blood-born protein signatures for Wilms Tumor. Int J Cancer 2011; 131:673-82. [PMID: 21913182 DOI: 10.1002/ijc.26419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 08/24/2011] [Indexed: 01/06/2023]
Abstract
Wilms Tumor (WT) is the most common renal childhood tumor. Recently, we reported a cDNA microarray expression pattern that varied between WTs with different risk histology. Since the Societé Internationale d'Oncologie Pédiatrique (SIOP) in Europe initiates treatment without a histological confirmation, it is important to identify blood-born markers that indicate WT development. In a multicenter study, we established an autoantibody signature by using an array with 1,827 recombinant E. coli clones. This array was screened with sera of patients with WT recruited by SIOP or the Children's Oncology Group (COG). We report an extended number of antigens that are reactive with autoantibodies present in sera from patients with WT. We established an autoantibody signature that separates untreated patients with WT recruited in SIOP from non-WT controls with a specificity of 0.83 and a sensitivity of 0.82 at standard deviations of 0.02 and 0.04, respectively. Likewise, patients recruited in the COG in the United States were separated from the controls with an accuracy of 0.83 at a standard deviation of 0.02. Proteins that were most significant include zinc finger proteins (e.g., ZFP 346), ribosomal proteins and the protein fascin that has been associated with various types of cancer including renal cell carcinoma. Our study provides first evidence for autoantibody signatures for WTs and suggests that these may be most informative before chemotherapy. We present the first multicenter study of autoantibody signatures in patients with WT. We established an autoantibody signature that separates patients with WT from controls.
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Affiliation(s)
- Jana Schmitt
- Department of Human Genetics, Medical School, Saarland University, 66421 Homburg, Germany.
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26
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Roth P, Wischhusen J, Happold C, Chandran PA, Hofer S, Eisele G, Weller M, Keller A. A specific miRNA signature in the peripheral blood of glioblastoma patients. J Neurochem 2011; 118:449-57. [PMID: 21561454 DOI: 10.1111/j.1471-4159.2011.07307.x] [Citation(s) in RCA: 145] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The prognosis of patients afflicted by glioblastoma remains poor. Biomarkers for the disease would be desirable in order to allow for an early detection of tumor progression or to indicate rapidly growing tumor subtypes requiring more intensive therapy. In this study, we investigated whether a blood-derived specific miRNA fingerprint can be defined in patients with glioblastoma. To this end, miRNA profiles from the blood of 20 patients with glioblastoma and 20 age- and sex-matched healthy controls were compared. Of 1158 tested miRNAs, 52 were significantly deregulated, as assessed by unadjusted Student's t-test at an alpha level of 0.05. Of these, two candidates, miR-128 (up-regulated) and miR-342-3p (down-regulated), remained significant after correcting for multiple testing by Benjamini-Hochberg adjustment with a p-value of 0.025. The altered expression of these two biomarkers was confirmed in a second cohort of glioblastoma patients and healthy controls by real-time PCR and validated for patients who had received neither radio- nor chemotherapy and for patients who had their glioblastomas resected more than 6 months ago. Moreover, using machine learning, a comprehensive miRNA signature was obtained that allowed for the discrimination between blood samples of glioblastoma patients and healthy controls with an accuracy of 81% [95% confidence interval (CI) 78-84%], specificity of 79% (95% CI 75-83%) and sensitivity of 83% (95% CI 71-85%). In summary, our proof-of-concept study demonstrates that blood-derived glioblastoma-associated characteristic miRNA fingerprints may be suitable biomarkers and warrant further exploration.
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Affiliation(s)
- Patrick Roth
- Department of Neurology, University Hospital Zurich, Zurich, Switzerland.
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27
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Duffy MJ. Prostate-specific antigen: does the current evidence support its use in prostate cancer screening? Ann Clin Biochem 2011; 48:310-6. [DOI: 10.1258/acb.2011.010273] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Although widely used, the value of prostate-specific antigen (PSA) in screening asymptomatic men for prostate cancer is controversial. Reasons for the controversy relate to PSA being less than an ideal marker in detecting early prostate cancer, the possibility that screening for prostate cancer may result in the overdetection and thus overtreatment of indolent disease and the lack of clarity as to the definitive or best treatment for men diagnosed with localized prostate cancer. Although the results from some randomized prospective trials suggest that screening with PSA reduces mortality from prostate cancer, the overall benefit was modest. It is thus currently unclear as to whether the modest benefit of reduced mortality outweighs the harms of overdetection and overtreatment. Thus, prior to undergoing screening for prostate cancer, men should be informed of the risks and benefits of early detection. Newly emerging markers that may complement PSA in the early detection of prostate cancer include specific isoforms of PSA and PCA3.
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Affiliation(s)
- Michael J Duffy
- Department of Pathology and Laboratory Medicine, St Vincent's University Hospital, Dublin and UCD School of Medicine and Medical Science, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
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28
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Hoffman RM, Smith AY. What we have learned from randomized trials of prostate cancer screening. Asian J Androl 2011; 13:369-73. [PMID: 21478899 DOI: 10.1038/aja.2010.181] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The introduction of prostate-specific antigen (PSA) for prostate cancer screening in the late 1980s led to an epidemic of prostate cancer, particularly in developed countries. However, the first valid reports from randomized controlled trials on the efficacy of screening were not published until 2009. Men in the screening group in the European Randomized Study of Screening for Prostate Cancer were 20% less likely than those in the control group to die from prostate cancer. The absolute difference was only 0.7/1000, implying that over 1400 men needed to be screened to prevent one prostate cancer death. Screening was also associated with a 70% increased risk for being diagnosed with prostate cancer. The American Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial found no survival benefit for screening. Results were not conclusive because a substantial proportion of study subjects had previously undergone PSA testing, over half of the control group had PSA testing, follow-up was relatively short, and fewer than 100 subjects died from prostate cancer. Balancing the potential survival benefit from screening is the risk of overdiagnosis-finding cancers that would not otherwise cause clinical problems-and the risk of treatment complications, including urinary, sexual and bowel dysfunction. Prostate cancer screening efforts would benefit from improved biomarkers, which more readily identify clinically important cancers. Cancer control efforts might also need to include chemoprevention, though currently available agents are controversial. In the meantime, patients need to be supported in achieving informed decisions on whether to be screened for prostate cancer.
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Affiliation(s)
- Richard M Hoffman
- Medicine Service, New Mexico VA Health Care System, Albuquerque, NM 87108, USA.
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Bourdoumis A, Papatsoris AG, Chrisofos M, Efstathiou E, Skolarikos A, Deliveliotis C. The novel prostate cancer antigen 3 (PCA3) biomarker. Int Braz J Urol 2010; 36:665-8; discussion 669. [DOI: 10.1590/s1677-55382010000600003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2010] [Indexed: 12/21/2022] Open
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30
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Shi G, Ye DW, Yao X, Zhang S, Dai B, Zhang H, Shen Y, Zhu Y, Zhu Y, Xiao W, Ma C. Extramammary Paget's diseases in men from the Shanghai area: its association with PSA level increase. APMIS 2010; 118:777-81. [PMID: 20854472 PMCID: PMC2955970 DOI: 10.1111/j.1600-0463.2010.02657.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Shi G, Ye D-W, Yao X, Zhang S, Dai B, Zhang H, Shen Y, Zhu Y, Zhu Y, Xiao W, Ma C. Extramammary Paget’s diseases in men from the Shanghai area: its association with PSA level increase. APMIS 2010; 118: 777–81. The aim of this study was to determine the incidence of prostate cancer in patients with extramammary Paget’s disease (EMPD). All cases of EMPD diagnosed between 1992 and 2007 in Shanghai Cancer Hospital were collected and analyzed for the incidence of prostate cancer. The median follow-up was 78 months. In total, 38 cases of invasive and 10 cases of in situ EMPD had been registered. A second malignancy was found in 28.9% (11/38) of patients with invasive EMPD and in 30% (3/10) of patients with in situ EMPD. Patients had an increased risk of developing a second cancer compared with the general population (standardized incidence ratio: 1.7; 95% confidence interval 1.2–2.4). Sixteen patients had serum prostate-specific antigen (PSA) level above 4 ng/mL; five developed prostate cancer, three of them with PSA levels beyond 100 ng/mL. The incidence of prostate cancer is 10.4% in this patient group. Patients with EMPD were more likely to have prostate cancer than the general population. Although the prognosis of EMPD is fairly good, a thorough search for a second tumor is recommended.
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Affiliation(s)
- Guohai Shi
- Department of Urology, Cancer Hospital, Fudan University, Shanghai, China
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