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Gebrael G, Fortuna GG, Sayegh N, Swami U, Agarwal N. Advances in the treatment of metastatic prostate cancer. Trends Cancer 2023; 9:840-854. [PMID: 37442702 PMCID: PMC10527423 DOI: 10.1016/j.trecan.2023.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 07/15/2023]
Abstract
The field of metastatic prostate cancer (mPCa) has seen unprecedented therapeutic advances in the past decade. In the past 2 years, recent approvals include the triplet therapy regimens of androgen deprivation therapy (ADT), docetaxel, and an androgen receptor (AR) pathway inhibitor (ARPI) in the castration-sensitive setting and lutetium-177 vipivotide tetraxetan (177Lu-PSMA-617) and the combination of poly(ADP) ribose polymerase (PARP) inhibitors (PARPis) and ARPIs in the castration-resistant setting. With many agents currently undergoing investigation in registration trials, the therapeutic armamentarium will expand rapidly, making treatment selection and sequencing challenging. Herein, we review the landmark clinical trials ongoing or reported in the past 2 years, discuss the optimal approach to treatment selection, and provide insight into future directions.
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Affiliation(s)
- Georges Gebrael
- Division of Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Gliceida Galarza Fortuna
- Division of Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Nicolas Sayegh
- Division of Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Umang Swami
- Division of Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Neeraj Agarwal
- Division of Medical Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.
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2
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Akbari Nakhjavani S, Tokyay BK, Soylemez C, Sarabi MR, Yetisen AK, Tasoglu S. Biosensors for prostate cancer detection. Trends Biotechnol 2023; 41:1248-1267. [PMID: 37147246 DOI: 10.1016/j.tibtech.2023.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/22/2023] [Accepted: 04/04/2023] [Indexed: 05/07/2023]
Abstract
Prostate cancer (PC) is one of the most common tumors and a leading cause of mortality among men, resulting in ~375 000 deaths annually worldwide. Various analytical methods have been designed for quantitative and rapid detection of PC biomarkers. Electrochemical (EC), optical, and magnetic biosensors have been developed to detect tumor biomarkers in clinical and point-of-care (POC) settings. Although POC biosensors have shown potential for detection of PC biomarkers, some limitations, such as the sample preparation, should be considered. To tackle such shortcomings, new technologies have been utilized for development of more practical biosensors. Here, biosensing platforms for the detection of PC biomarkers such as immunosensors, aptasensors, genosensors, paper-based devices, microfluidic systems, and multiplex high-throughput platforms, are discussed.
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Affiliation(s)
- Sattar Akbari Nakhjavani
- Department of Mechanical Engineering, Koç University, Sariyer, Istanbul 34450, Turkey; Koç University Translational Medicine Research Center (KUTTAM), Koç University, Istanbul 34450, Turkey
| | - Begum K Tokyay
- Koç University Translational Medicine Research Center (KUTTAM), Koç University, Istanbul 34450, Turkey; Department of Biomedical Sciences and Engineering, Koç University, 34450 Istanbul, Turkey
| | - Cansu Soylemez
- Department of Biomedical Sciences and Engineering, Koç University, 34450 Istanbul, Turkey
| | - Misagh R Sarabi
- Department of Biomedical Sciences and Engineering, Koç University, 34450 Istanbul, Turkey; Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart, Germany 70569
| | - Ali K Yetisen
- Department of Chemical Engineering, Imperial College, London SW7 2AZ, UK
| | - Savas Tasoglu
- Department of Mechanical Engineering, Koç University, Sariyer, Istanbul 34450, Turkey; Koç University Translational Medicine Research Center (KUTTAM), Koç University, Istanbul 34450, Turkey; Physical Intelligence Department, Max Planck Institute for Intelligent Systems, Stuttgart, Germany 70569; Koç University Arçelik Research Center for Creative Industries (KUAR), Koç University, Istanbul 34450, Turkey; Boğaziçi Institute of Biomedical Engineering, Boğaziçi University, Istanbul 34684, Turkey.
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3
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Wan S, He Y, Zhang B, Yang Z, Du FM, Zhang CP, Fu YQ, Mi J. Overexpression of CDCA8 Predicts Poor Prognosis and Promotes Tumor Cell Growth in Prostate Cancer. Front Oncol 2022; 12:784183. [PMID: 35449575 PMCID: PMC9016845 DOI: 10.3389/fonc.2022.784183] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/07/2022] [Indexed: 12/24/2022] Open
Abstract
Human cell division cycle-related protein 8 (CDCA8) is an essential component of the vertebrate chromosomal passenger complex (CPC). CDCA8 was confirmed to play a role in promoting malignant tumor progression. However, the exact function of CDCA8 in the development and progression of prostate cancer (PCa) remains unclear. In this study, the database GSE69223 was downloaded by the gene expression omnibus (GEO) database, as well as CDCA8 expression differences in multiple tumor tissues and normal tissues were detected by The Cancer Genome Atlas (TCGA), TIMER, Oncomine, and Ualcan databases. Kaplan-Meier and Cox regression methods were used to analyze the correlation between CDCA8 expression and prognosis in PCa. We confirmed the expression of CDCA8 in PCa tissues by HPA. We also analyzed the association of CDCA8 expression with PCa clinical characteristics in the TCGA database. To further understand the role of CDCA8 in PCa, we assessed the effects of CDCA8 on PCa cell growth, proliferation, and migration in vitro studies. As a result, CDCA8 was significantly overexpressed in PCa cells compared with normal prostate cells. High CDCA8 expression predicts poor prognosis in PCa patients, and CDCA8 expression was higher in high-grade PCa. In addition, silencing of CDCA8 significantly inhibited PCa cell proliferation and migration. In summary, CDCA8 promoted the proliferation and migration of PCa cells.
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Affiliation(s)
- Shun Wan
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Yang He
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Bin Zhang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Zhi Yang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Fang-Ming Du
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Chun-Peng Zhang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Yu-Qiang Fu
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Jun Mi
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
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4
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Construction of genetic classification model for coronary atherosclerosis heart disease using three machine learning methods. BMC Cardiovasc Disord 2022; 22:42. [PMID: 35151267 PMCID: PMC8840658 DOI: 10.1186/s12872-022-02481-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/24/2022] [Indexed: 12/05/2022] Open
Abstract
Background Although the diagnostic method for coronary atherosclerosis heart disease (CAD) is constantly innovated, CAD in the early stage is still missed diagnosis for the absence of any symptoms. The gene expression levels varied during disease development; therefore, a classifier based on gene expression might contribute to CAD diagnosis. This study aimed to construct genetic classification models for CAD using gene expression data, which may provide new insight into the understanding of its pathogenesis. Methods All statistical analysis was completed by R 3.4.4 software. Three raw gene expression datasets (GSE12288, GSE7638 and GSE66360) related to CAD were downloaded from the Gene Expression Omnibus database and included for analysis. Limma package was performed to identify differentially expressed genes (DEGs) between CAD samples and healthy controls. The WGCNA package was conducted to recognize CAD-related gene modules and hub genes, followed by recursive feature elimination analysis to select the optimal features genes (OFGs). The genetic classification models were established using support vector machine (SVM), random forest (RF) and logistic regression (LR), respectively. Further validation and receiver operating characteristic (ROC) curve analysis were conducted to evaluate the classification performance. Results In total, 374 DEGs, eight gene modules, 33 hub genes and 12 OFGs (HTR4, KISS1, CA12, CAMK2B, KLK2, DDC, CNGB1, DERL1, BCL6, LILRA2, HCK, MTF2) were identified. ROC curve analysis showed that the accuracy of SVM, RF and LR were 75.58%, 63.57% and 63.95% in validation; with area under the curve of 0.813 (95% confidence interval, 95% CI 0.761–0.866, P < 0.0001), 0.727 (95% CI 0.665–0.788, P < 0.0001) and 0.783 (95% CI 0.725–0.841, P < 0.0001), respectively. Conclusions In conclusion, this study found 12 gene signatures involved in the pathogenic mechanism of CAD. Among the CAD classifiers constructed by three machine learning methods, the SVM model has the best performance. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-022-02481-4.
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5
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Abbasi AZ, Kiyani DA, Hamid SM, Saalim M, Fahim A, Jalal N. Spiking dependence of SARS-CoV-2 pathogenicity on TMPRSS2. J Med Virol 2021; 93:4205-4218. [PMID: 33638460 PMCID: PMC8014076 DOI: 10.1002/jmv.26911] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/15/2021] [Accepted: 02/22/2021] [Indexed: 12/11/2022]
Abstract
Epidemiological data shows a discrepancy in COVID‐19 susceptibility and outcomes with some regions being more heavily affected than others. However, the factors that determine host susceptibility and pathogenicity remain elusive. An increasing number of publications highlight the role of Transmembrane Serine Protease 2 (TMPRSS2) in the susceptibility of the host cell to SARS‐CoV‐2. Cleavage of viral spike protein via the host cell's TMPRSS2 enzyme activity mediates viral entry into the host cell. The enzyme synthesis is regulated by the TMPRSS2 gene, which has also been implicated in the entry mechanisms of previously reported Coronavirus infections. In this review, we have investigated the pathogenicity of SARS‐CoV‐2 and disease susceptibility dependence on the TMPRSS2 gene as expressed in various population groups. We further discuss how the differential expression of this gene in various ethnic groups can affect the SARS‐CoV‐2 infection and Coronavirus disease (COVID)‐19 outcomes. Moreover, promising new TMPRSS2 protease blockers and inhibitors are discussed for COVID‐19 treatment. 1. Entry of SARS‐CoV‐2 into a host cell depends on host protease TMPRSS2. 2. TMPRSS2 gene has localized expression throughout the human body but highly expressed in cells of the respiratory tract (primary target of SARS‐CoV‐2 in humans), gastrointestinal tract, kidneys and prostate. 3. Differences in expression of TMPRSS2 gene in the respiratory among different population groups can be a basis for discrepancy observed in COVID‐19 susceptibility and disease outcomes. 4. Drugs based on the inhibition or blockage of TMPRSS2 protease are undergoing clinical trials as a therapeutic option.
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Affiliation(s)
| | | | | | - Muhammad Saalim
- PsiMega2 (Pvt.) Ltd., Islamabad, Pakistan.,School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
| | - Ammad Fahim
- National University of Medical Sciences, Rawalpindi, Punjab, Pakistan
| | - Nasir Jalal
- PsiMega2 (Pvt.) Ltd., Islamabad, Pakistan.,Nanjing University of Information Science and Technology, Nanjing, Jiangsu Province, China
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Schallmoser A, Bakjaji F, Königsberger S, John J, Färber C, Schmidt E, Breitenbach-Koller H, Allam JP, Verguts J, Sänger N. Effect of mild α-chymotrypsin treatment of highly viscous semen samples on fertilization rates. Transl Androl Urol 2021; 10:448-454. [PMID: 33532332 PMCID: PMC7844487 DOI: 10.21037/tau-20-1013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Highly viscous semen reduces sperm motility significantly and can contribute to infertility. When processing semen samples, few techniques exist to induce liquefaction in case of seminal hyperviscosity such as different washing steps and mechanical treatment. The use of α-chymotrypsin seems controversial due to possible negative effects on fertilisation rates after in vitro fertilization (IVF). The main objective of this study was to examine the influence of mild α-chymotrypsin treatment of semen samples on the fertilisation rate after artificial reproductive treatment (ART). Methods The fertilization rate of 52 ART cycles was examined following IVF using a low dose of α-chymotrypsin to induce liquefaction of highly viscous semen and was compared to a control group of 88 ART cycles. Results There was no significant difference in the fertilization rates of α-chymotrypsin treated semen samples compared to the control group; pregnancy rates were unaffected. Conclusions The use of mild α-chymotrypsin treatment of semen samples in case of hyperviscosity does not appear to impact negatively on the fertilization rates after ART and could be regarded as an additional method to induce liquefaction of highly viscous semen samples in IVF.
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Affiliation(s)
- Andreas Schallmoser
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Bonn, Germany
| | - Fadi Bakjaji
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Bonn, Germany
| | | | - Julia John
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Bonn, Germany
| | - Cara Färber
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Bonn, Germany
| | | | | | | | - Jasper Verguts
- Department of Dermatology and Allergy, University Hospital of Bonn, Bonn, Germany
| | - Nicole Sänger
- Department of Gynecological Endocrinology and Reproductive Medicine, University Hospital of Bonn, Bonn, Germany
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Kunjiappan S, Pavadai P, Vellaichamy S, Ram Kumar Pandian S, Ravishankar V, Palanisamy P, Govindaraj S, Srinivasan G, Premanand A, Sankaranarayanan M, Theivendren P. Surface receptor‐mediated targeted drug delivery systems for enhanced cancer treatment: A state‐of‐the‐art review. Drug Dev Res 2020; 82:309-340. [DOI: 10.1002/ddr.21758] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 10/16/2020] [Accepted: 10/23/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Selvaraj Kunjiappan
- Department of Biotechnology Kalasalingam Academy of Research and Education Krishnankoil Tamilnadu India
| | - Parasuraman Pavadai
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy M.S. Ramaiah University of Applied Sciences Bengaluru Karnataka India
| | - Sivakumar Vellaichamy
- Department of Pharmaceutics Arulmigu Kalasalingam College of Pharmacy Krishnankoil Tamilnadu India
| | | | | | - Ponnusamy Palanisamy
- School of Mechanical Engineering Vellore Institute of Technology Vellore Tamilnadu India
| | - Saravanan Govindaraj
- Department of Pharmaceutical Chemistry MNR College of Pharmacy Sangareddy Telangana India
| | - Gowshiki Srinivasan
- Department of Biotechnology Kalasalingam Academy of Research and Education Krishnankoil Tamilnadu India
| | - Adhvitha Premanand
- Department of Biotechnology Kalasalingam Academy of Research and Education Krishnankoil Tamilnadu India
| | | | - Panneerselvam Theivendren
- Department of Pharmaceutical Chemistry Swamy Vivekananda College of Pharmacy Elayampalayam, Namakkal Tamilnadu India
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Madan RA, Antonarakis ES, Drake CG, Fong L, Yu EY, McNeel DG, Lin DW, Chang NN, Sheikh NA, Gulley JL. Putting the Pieces Together: Completing the Mechanism of Action Jigsaw for Sipuleucel-T. J Natl Cancer Inst 2020; 112:562-573. [PMID: 32145020 PMCID: PMC7301097 DOI: 10.1093/jnci/djaa021] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/23/2020] [Accepted: 01/30/2020] [Indexed: 02/06/2023] Open
Abstract
Sipuleucel-T is an autologous cellular immunotherapy that induces an immune response targeted against prostatic acid phosphatase (PAP) to treat asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer. In the phase III IMPACT study, sipuleucel-T was associated with a statistically significantly increased overall survival (OS) (median = 4.1 months) vs placebo. Patients with baseline prostate-specific antigen levels in the lowest quartile (≤22.1 ng/mL) exhibited a 13-month improvement in OS with sipuleucel-T. Together, this led sipuleucel-T to be approved and recommended as first-line therapy in various guidelines for treatment of metastatic castration-resistant prostate cancer. This review discusses the varied findings about the mechanisms of action of sipuleucel-T, bringing them together to form a more coherent picture. These pieces include inducing a statistically significant increase in antigen-presenting cell activation; inducing a peripheral immune response specific to the target (PAP) and/or immunizing (PA2024) antigens; stimulating systemic cytotoxic T-lymphocyte activity; and mediating antigen spread (ie, increased antibody responses to secondary proteins in addition to PAP and PA2024). Each of these pieces individually correlates with OS. Sipuleucel-T also traffics T cells to the prostate and is associated with long-term immune memory such that a second course of treatment induces an anamnestic immune response. Prostate cancer does not have a strongly inflamed microenvironment, thus its response to immune checkpoint inhibitors is limited. Because sipuleucel-T is able to traffic T cells to the tumor, it may be an ideal combination partner with immunotherapies including immune checkpoint inhibitors or with radiation therapy.
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Affiliation(s)
- Ravi A Madan
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Charles G Drake
- Columbia University Herbert Irving Comprehensive Cancer Center, New York, NY, USA
| | - Lawrence Fong
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA, USA
| | - Evan Y Yu
- University of Washington and Seattle Cancer Care Alliance, Seattle, WA, USA
| | | | - Daniel W Lin
- University of Washington and Seattle Cancer Care Alliance, Seattle, WA, USA
| | | | | | - James L Gulley
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
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Ruiz-Plazas X, Rodríguez-Gallego E, Alves M, Altuna-Coy A, Lozano-Bartolomé J, Portero-Otin M, García-Fontgivell JF, Martínez-González S, Segarra J, Chacón MR. Biofluid quantification of TWEAK/Fn14 axis in combination with a selected biomarker panel improves assessment of prostate cancer aggressiveness. J Transl Med 2019; 17:307. [PMID: 31500625 PMCID: PMC6734315 DOI: 10.1186/s12967-019-2053-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 08/29/2019] [Indexed: 12/22/2022] Open
Abstract
Background Conventional clinical biomarkers cannot accurately differentiate indolent from aggressive prostate cancer (PCa). We investigated the usefulness of a biomarker panel measured exclusively in biofluids for assessment of PCa aggressiveness. Methods We collected biofluid samples (plasma/serum/semen/post-prostatic massage urine) from 98 patients that had undergone radical prostatectomy. Clinical biochemistry was performed and several cytokines/chemokines including soluble(s) TWEAK, sFn14, sCD163, sCXCL5 and sCCL7 were quantified by ELISA in selected biofluids. Also, the expression of KLK2, KLK3, Fn14, CD163, CXCR2 and CCR3 was quantified by real-time PCR in semen cell sediment. Univariate, logistic regression, and receiver operating characteristic (ROC) analyses were used to assess the predictive ability of the selected biomarker panel in conjunction with clinical and metabolic variables for the evaluation of PCa aggressiveness. Results Total serum levels of prostate-specific antigen (PSA), semen levels of sTWEAK, fasting glycemia and mRNA levels of Fn14, KLK2, CXCR2 and CCR3 in semen cell sediment constituted a panel of markers that was significantly different between patients with less aggressive tumors [International Society of Urological Pathology (ISUP) grade I and II] and those with more aggressive tumors (ISUP grade III, IV and V). ROC curve analysis showed that this panel could be used to correctly classify tumor aggressiveness in 90.9% of patients. Area under the curve (AUC) analysis revealed that this combination was more accurate [AUC = 0.913 95% confidence interval (CI) 0.782–1] than a classical non-invasive selected clinical panel comprising age, tumor clinical stage (T-classification) and total serum PSA (AUC = 0.721 95% CI 0.613–0.830). Conclusions TWEAK/Fn14 axis in combination with a selected non-invasive biomarker panel, including conventional clinical biochemistry, can improve the predictive power of serum PSA levels and could be used to classify PCa aggressiveness.
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Affiliation(s)
- Xavier Ruiz-Plazas
- Disease Biomarkers and Molecular Mechanisms Group, IISPV, Joan XXIII University Hospital, Universitat Rovira i Virgili, University Hospital of Tarragona Joan XXIII, C/Dr. Mallafré Guasch, 4, 43007, Tarragona, Spain.,Urology Unit, Joan XXIII University Hospital, Tarragona, Spain
| | - Esther Rodríguez-Gallego
- Infectious Diseases and HIV/AIDS Unit, Department of Internal Medicine, Joan XXIII University Hospital, Universitat Rovira i Virgili, Tarragona, Spain
| | - Marta Alves
- Urology Unit, Joan XXIII University Hospital, Tarragona, Spain
| | - Antonio Altuna-Coy
- Disease Biomarkers and Molecular Mechanisms Group, IISPV, Joan XXIII University Hospital, Universitat Rovira i Virgili, University Hospital of Tarragona Joan XXIII, C/Dr. Mallafré Guasch, 4, 43007, Tarragona, Spain
| | - Javier Lozano-Bartolomé
- Disease Biomarkers and Molecular Mechanisms Group, IISPV, Joan XXIII University Hospital, Universitat Rovira i Virgili, University Hospital of Tarragona Joan XXIII, C/Dr. Mallafré Guasch, 4, 43007, Tarragona, Spain
| | - Manel Portero-Otin
- Department of Experimental Medicine, Universitat de Lleida-IRBLleida, Lleida, Spain
| | | | | | - José Segarra
- Disease Biomarkers and Molecular Mechanisms Group, IISPV, Joan XXIII University Hospital, Universitat Rovira i Virgili, University Hospital of Tarragona Joan XXIII, C/Dr. Mallafré Guasch, 4, 43007, Tarragona, Spain. .,Urology Unit, Joan XXIII University Hospital, Tarragona, Spain.
| | - Matilde R Chacón
- Disease Biomarkers and Molecular Mechanisms Group, IISPV, Joan XXIII University Hospital, Universitat Rovira i Virgili, University Hospital of Tarragona Joan XXIII, C/Dr. Mallafré Guasch, 4, 43007, Tarragona, Spain.
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10
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Song Z, Huang Y, Zhao Y, Ruan H, Yang H, Cao Q, Liu D, Zhang X, Chen K. The Identification of Potential Biomarkers and Biological Pathways in Prostate Cancer. J Cancer 2019; 10:1398-1408. [PMID: 31031850 PMCID: PMC6485223 DOI: 10.7150/jca.29571] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 01/04/2019] [Indexed: 12/27/2022] Open
Abstract
Purpose: The present study aims to explore the potential mechanisms contributing to prostate cancer (PCa), screen the hub genes, and identify potential biomarkers and correlated pathways of PCa progression. Methods: The PCa gene expression profile GSE3325 was operated to analyze the differentially expressed genes (DEGs). DAVID was used to evaluate Gene ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. A protein-protein interaction (PPI) network was constructed to visualize interactions of the hub genes. The prognostic and diagnostic analysis of these hub genes was carried out to evaluate their potential effects on PCa. Results: A total of 847 DEGs were identified (427 upregulated genes and 420 downregulated genes). Meanwhile, top15 hub genes were showed. GO analysis displayed that the DEGs were mainly enriched in cell cycle, DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest and proteinaceous extracellular matrix. KEGG analysis indicated the DEGs were enriched in the p53 signaling pathway and cell cycle pathway. The GO and KEGG enrichment analyses for the DEGs disclosed important biological features of PCa. PPI network showed the interaction of top 15 hub genes. Gene Set Enrichment Analysis (GSEA) revealed that some of the hub genes were associated with biochemical recurrence (BCR) and metastasis of PCa. Some top hub genes were distinctive and new discoveries compared with that of the existing associated researches. Conclusions: Our analysis revealed that the changes of cell cycle and p53 signaling pathway are two major signatures of PCa. CENPA, KIF20A and CDCA8 might promote the tumorigenesis and progression of PCa, especially in BCR and metastasis, which could be novel therapeutic targets and biomarkers for diagnosis, prognosis of PCa.
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Affiliation(s)
- Zhengshuai Song
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Department of Urology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology
| | - Yu Huang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ye Zhao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hailong Ruan
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hongmei Yang
- Department of Pathogenic Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Qi Cao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Di Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoping Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ke Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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11
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van der Toom EE, Axelrod HD, de la Rosette JJ, de Reijke TM, Pienta KJ, Valkenburg KC. Prostate-specific markers to identify rare prostate cancer cells in liquid biopsies. Nat Rev Urol 2019; 16:7-22. [PMID: 30479377 DOI: 10.1038/s41585-018-0119-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Despite improvements in early detection and advances in treatment, patients with prostate cancer continue to die from their disease. Minimal residual disease after primary definitive treatment can lead to relapse and distant metastases, and increasing evidence suggests that circulating tumour cells (CTCs) and bone marrow-derived disseminated tumour cells (BM-DTCs) can offer clinically relevant biological insights into prostate cancer dissemination and metastasis. Using epithelial markers to accurately detect CTCs and BM-DTCs is associated with difficulties, and prostate-specific markers are needed for the detection of these cells using rare cell assays. Putative prostate-specific markers have been identified, and an optimized strategy for staining rare cancer cells from liquid biopsies using these markers is required. The ideal prostate-specific marker will be expressed on every CTC or BM-DTC throughout disease progression (giving high sensitivity) and will not be expressed on non-prostate-cancer cells in the sample (giving high specificity). Some markers might not be specific enough to the prostate to be used as individual markers of prostate cancer cells, whereas others could be truly prostate-specific and would make ideal markers for use in rare cell assays. The goal of future studies is to use sensitive and specific prostate markers to consistently and reliably identify rare cancer cells.
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Affiliation(s)
| | - Haley D Axelrod
- The James Buchanan Brady Urological Institute, Baltimore, MD, USA.,Graduate Program in Cellular and Molecular Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | | | - Kenneth J Pienta
- The James Buchanan Brady Urological Institute, Baltimore, MD, USA
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12
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Chakrabarty B, Lee S, Exintaris B. Generation and Regulation of Spontaneous Contractions in the Prostate. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1124:195-215. [PMID: 31183828 DOI: 10.1007/978-981-13-5895-1_8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Spontaneous myogenic contractions have been shown to be significantly upregulated in prostate tissue collected from men with Benign Prostatic Hyperplasia (BPH), an extremely common disorder of the ageing male. Although originally thought likely to be involved in 'housekeeping' functions, mixing prostatic secretions to prevent stagnation, these spontaneous myogenic contractions provide a novel opportunity to understand and treat BPH. This treatment potential differs from previous models, which focused exclusively on attenuating nerve-mediated neurogenic contractions. Previous studies in the rodent prostate have provided an insight into the mechanisms underlying the regulation of myogenic contractions. 'Prostatic Interstitial Cells' (PICs) within the prostate appear to generate pacemaker potentials, which arise from the summation of number of spontaneous transient depolarisations triggered by the spontaneous release of Ca2+ from internal stores and the opening of Ca2+-activated Cl- channels. Pacemaker potentials then conduct into neighbouring smooth muscle cells to generate spontaneous slow waves. These slow waves trigger the firing of 'spike-like' action potentials, Ca2+ entry and contraction, which are not attenuated by blockers of neurotransmission. However, these spontaneous prostatic contractions can be modulated by the autonomic nervous system. Here, we discuss the mechanisms underlying rodent and human prostate myogenic contractions and the actions of existing and novel pharmacotherapies for the treatment of BPH. Understanding the generation of human prostatic smooth muscle tone will confirm the mechanism of action of existing drugs, inform the identification and effectiveness of new pharmacotherapies, as well as predict patient outcomes.
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Affiliation(s)
- Basu Chakrabarty
- Drug Discovery Biology, Monash Institute of Pharmaceutical Science, Melbourne, VIC, Australia
| | - Sophie Lee
- Drug Discovery Biology, Monash Institute of Pharmaceutical Science, Melbourne, VIC, Australia
| | - Betty Exintaris
- Drug Discovery Biology, Monash Institute of Pharmaceutical Science, Melbourne, VIC, Australia.
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13
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da Costa PLN, Wynne D, Fifis T, Nguyen L, Perini M, Christophi C. The kallikrein-Kinin system modulates the progression of colorectal liver metastases in a mouse model. BMC Cancer 2018; 18:382. [PMID: 29618333 PMCID: PMC5885419 DOI: 10.1186/s12885-018-4260-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 03/20/2018] [Indexed: 01/06/2023] Open
Abstract
Background The Kallikrein-Kinin System (KKS) has been found to play a role in tumor progression in several cancers. The KKS metabolic cascade depends on signalling through two cross talking receptors; bradykinin receptor 1 (B1R) and bradykinin receptor 2 (B2R). Activation of the Kinin receptor is responsible for multiple pathophysiologic functions including increase of vascular permeability and induction of host inflammatory responses that exert diverse effects on tumor growth. Methods B1R and B2R expression on mouse and human CRC cell lines was investigated. Changes in tumor growth and progression was assessed in male CBA mice bearing colorectal liver metastases (CRLM) following treatment with B1R or B2R blockers. In vitro cultures of human SW-480 and mouse colorectal cancer (MoCR) cell lines were examined for changes in their proliferation and migration properties following treatment with B1R or B2R blockers. Results Both colorectal cancer cell lines tested strongly positive for B1R and B2R expression. Inhibition of both receptors retarded tumor growth but only B1R blockade significantly reduced tumor load and increased tumor apoptosis. Blockade of either receptor reduced tumor vascularization in vivo and significantly inhibited proliferation and migration of colorectal cancer cells in vitro. Conclusion Taken together, the present study demonstrated that kinin receptor blockade inhibited tumor growth and reduced its invading properties suggesting that KKS manipulation could be a novel target in colorectal cancer therapy. Electronic supplementary material The online version of this article (10.1186/s12885-018-4260-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Patricia Luiza Nunes da Costa
- Department of Surgery, University of Melbourne, Austin Health, Lance Townsend Building Level 8, Studley Rd, Heidelberg, VIC, 3084, Australia.,Laboratório de Oncologia Experimental, Faculdade de Medicina da Universidade de São Paulo and Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
| | - David Wynne
- Department of Surgery, University of Melbourne, Austin Health, Lance Townsend Building Level 8, Studley Rd, Heidelberg, VIC, 3084, Australia
| | - Theodora Fifis
- Department of Surgery, University of Melbourne, Austin Health, Lance Townsend Building Level 8, Studley Rd, Heidelberg, VIC, 3084, Australia.
| | - Linh Nguyen
- Department of Surgery, University of Melbourne, Austin Health, Lance Townsend Building Level 8, Studley Rd, Heidelberg, VIC, 3084, Australia
| | - Marcos Perini
- Department of Surgery, University of Melbourne, Austin Health, Lance Townsend Building Level 8, Studley Rd, Heidelberg, VIC, 3084, Australia
| | - Christopher Christophi
- Department of Surgery, University of Melbourne, Austin Health, Lance Townsend Building Level 8, Studley Rd, Heidelberg, VIC, 3084, Australia
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Chistiakov DA, Myasoedova VA, Grechko AV, Melnichenko AA, Orekhov AN. New biomarkers for diagnosis and prognosis of localized prostate cancer. Semin Cancer Biol 2018; 52:9-16. [PMID: 29360504 DOI: 10.1016/j.semcancer.2018.01.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Accepted: 01/18/2018] [Indexed: 11/28/2022]
Abstract
The diagnostics and management of localized prostate cancer is complicated because of cancer heterogeneity and differentiated progression in various subgroups of patients. As a prostate cancer biomarker, FDA-approved detection assay for serum prostate specific antigen (PSA) and its derivatives are not potent enough to diagnose prostate cancer, especially high-grade disease (Gleason ≥7). To date, a collection of new biomarkers was developed. Some of these markers are superior for primary screening while others are particularly helpful for cancer risk stratification, detection of high-grade cancer, and prediction of adverse events. Two of those markers such as proPSA (a part of the Prostate Health Index (PHI)) and prostate specific antigen 3 (PCA3) (a part of the PCA3 Progensa test) were recently approved by FDA for clinical use. Other markers are not PDA-approved yet but are available from Clinical Laboratory Improvement Amendment (CLIA)-certified clinical laboratories. In this review, we characterize diagnostic performance of these markers and their diagnostic and prognostic utility for prostate cancer.
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Affiliation(s)
- Dimitry A Chistiakov
- Department of Basic and Applied Neurobiology, Serbsky Federal Medical Research Center for Psychiatry and Narcology, 119991, Moscow, Russia.
| | - Veronika A Myasoedova
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315, Moscow, Russia
| | - Andrey V Grechko
- Federal Scientific Clinical Center for Resuscitation and Rehabilitation, 109240, Moscow, Russia
| | - Alexandra A Melnichenko
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315, Moscow, Russia
| | - Alexander N Orekhov
- Laboratory of Angiopathology, Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315, Moscow, Russia; Institute for Atherosclerosis Research, Skolkovo Innovative Center, 121609, Moscow, Russia.
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15
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Diamandis EP, Stanczyk FZ, Wheeler S, Mathew A, Stengelin M, Nikolenko G, Glezer EN, Brown MD, Zheng Y, Chen YH, Wu HL, Azziz R. Serum complexed and free prostate-specific antigen (PSA) for the diagnosis of the polycystic ovarian syndrome (PCOS). Clin Chem Lab Med 2017; 55:1789-1797. [PMID: 28361781 DOI: 10.1515/cclm-2016-1124] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 02/21/2017] [Indexed: 01/25/2023]
Abstract
BACKGROUND Polycystic ovarian syndrome (PCOS) is a common cause of reproductive and metabolic dysfunction. We hypothesized that serum prostate-specific antigen (PSA) may constitute a new biomarker for hyperandrogenism in PCOS. METHODS We conducted a cross-sectional study of 45 women with PCOS and 40 controls. Serum from these women was analyzed for androgenic steroids and for complexed PSA (cPSA) and free PSA (fPSA) with a novel fifth- generation assay with a sensitivity of ~10 fg/mL for cPSA and 140 fg/mL for fPSA. RESULTS cPSA and fPSA levels were about three times higher in PCOS compared to controls. However, in PCOS, cPSA and fPSA did not differ according to waist-to-hip ratio, Ferriman-Gallwey score, or degree of hyperandrogenemia or oligo-ovulation. In PCOS and control women, serum cPSA and fPSA levels were highly correlated with each other, and with free and total testosterone levels, but not with other hormones. Adjusting for age, body mass index (BMI) and race, cPSA was significantly associated with PCOS, with an odds ratio (OR) of 5.67 (95% confidence interval [CI]: 1.86, 22.0). The OR of PCOS for fPSA was 7.04 (95% CI: 1.65, 40.4). A multivariate model that included age, BMI, race and cPSA yielded an area-under-the-receiver-operating-characteristic curve of 0.89. CONCLUSIONS Serum cPSA and fPSA are novel biomarkers for hyperandrogenism in PCOS and may have value for disease diagnosis.
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16
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Gulley JL, Madan RA, Pachynski R, Mulders P, Sheikh NA, Trager J, Drake CG. Role of Antigen Spread and Distinctive Characteristics of Immunotherapy in Cancer Treatment. J Natl Cancer Inst 2017; 109:2982600. [PMID: 28376158 PMCID: PMC5441294 DOI: 10.1093/jnci/djw261] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/04/2016] [Indexed: 12/14/2022] Open
Abstract
Immunotherapy is an important breakthrough in cancer. US Food and Drug Administration-approved immunotherapies for cancer treatment (including, but not limited to, sipuleucel-T, ipilimumab, nivolumab, pembrolizumab, and atezolizumab) substantially improve overall survival across multiple malignancies. One mechanism of action of these treatments is to induce an immune response against antigen-bearing tumor cells; the resultant cell death releases secondary (nontargeted) tumor antigens. Secondary antigens prime subsequent immune responses (antigen spread). Immunotherapy-induced antigen spread has been shown in clinical studies. For example, in metastatic castration-resistant prostate cancer patients, sipuleucel-T induced early immune responses to the immunizing antigen (PA2024) and/or the target antigen (prostatic acid phosphatase). Thereafter, most patients developed increased antibody responses to numerous secondary proteins, several of which are expressed in prostate cancer with functional relevance in cancer. The ipilimumab-induced antibody profile in melanoma patients shows that antigen spread also occurs with immune checkpoint blockade. In contrast to chemotherapy, immunotherapy often does not result in short-term changes in conventional disease progression end points (eg, progression-free survival, tumor size), which may be explained, in part, by the time taken for antigen spread to occur. Thus, immune-related response criteria need to be identified to better monitor the effectiveness of immunotherapy. As immunotherapy antitumor effects take time to evolve, immunotherapy in patients with less advanced cancer may have greater clinical benefit vs those with more advanced disease. This concept is supported by prostate cancer clinical studies with sipuleucel-T, PSA-TRICOM, and ipilimumab. We discuss antigen spread with cancer immunotherapy and its implications for clinical outcomes.
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Affiliation(s)
- James L Gulley
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ravi A Madan
- Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | | | - Peter Mulders
- Department of Urology, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | | | | | - Charles G Drake
- Johns Hopkins Sidney Kimmel Comprehensive Cancer Center and The Brady Urological Institute, Baltimore, MD, USA
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Kulasingam V, Prassas I, Diamandis EP. Towards personalized tumor markers. NPJ Precis Oncol 2017; 1:17. [PMID: 29872704 PMCID: PMC5871887 DOI: 10.1038/s41698-017-0021-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 04/21/2017] [Accepted: 04/25/2017] [Indexed: 01/06/2023] Open
Abstract
The cancer biomarker discovery pipeline is progressing slowly. The difficulties of finding novel and effective biomarkers for diagnosis and management of cancer patients are well-known. We speculate that it is unlikely to discover new serological biomarkers characterized by high sensitivity and specificity. This projection is supported by recent findings that cancers are genetically highly heterogeneous. Here, we propose a new way of improving the landscape of cancer biomarker research. There are currently hundreds, if not thousands, of described biomarkers which perform at high specificity (> 90%), but at relatively low sensitivity (< 30%). We call these “rare tumor markers.” Borrowing from the principles of precision medicine, we advocate that among these low sensitivity markers, some may be useful to specific patients. We suggest screening new patients for hundreds to thousands of cancer biomarkers to identify a few that are informative, and then use them clinically. This is similar to what we currently do with genomics to identify personalized therapies. We further suggest that this approach may explain as to why some biomarkers are elevated in only a small group of patients. It is likely that these differences in expression are linked to specific genomic alterations, which could then be found with genomic sequencing.
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Affiliation(s)
- Vathany Kulasingam
- 1Department of Clinical Biochemistry, University Health Network, Toronto, ON Canada.,2Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON Canada
| | - Ioannis Prassas
- 3Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON Canada
| | - Eleftherios P Diamandis
- 1Department of Clinical Biochemistry, University Health Network, Toronto, ON Canada.,2Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON Canada.,3Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON Canada
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18
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Pakula H, Xiang D, Li Z. A Tale of Two Signals: AR and WNT in Development and Tumorigenesis of Prostate and Mammary Gland. Cancers (Basel) 2017; 9:E14. [PMID: 28134791 PMCID: PMC5332937 DOI: 10.3390/cancers9020014] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/19/2017] [Accepted: 01/24/2017] [Indexed: 12/13/2022] Open
Abstract
Prostate cancer (PCa) is one of the most common cancers and among the leading causes of cancer deaths for men in industrialized countries. It has long been recognized that the prostate is an androgen-dependent organ and PCa is an androgen-dependent disease. Androgen action is mediated by the androgen receptor (AR). Androgen deprivation therapy (ADT) is the standard treatment for metastatic PCa. However, almost all advanced PCa cases progress to castration-resistant prostate cancer (CRPC) after a period of ADT. A variety of mechanisms of progression from androgen-dependent PCa to CRPC under ADT have been postulated, but it remains largely unclear as to when and how castration resistance arises within prostate tumors. In addition, AR signaling may be modulated by extracellular factors among which are the cysteine-rich glycoproteins WNTs. The WNTs are capable of signaling through several pathways, the best-characterized being the canonical WNT/β-catenin/TCF-mediated canonical pathway. Recent studies from sequencing PCa genomes revealed that CRPC cells frequently harbor mutations in major components of the WNT/β-catenin pathway. Moreover, the finding of an interaction between β-catenin and AR suggests a possible mechanism of cross talk between WNT and androgen/AR signaling pathways. In this review, we discuss the current knowledge of both AR and WNT pathways in prostate development and tumorigenesis, and their interaction during development of CRPC. We also review the possible therapeutic application of drugs that target both AR and WNT/β-catenin pathways. Finally, we extend our review of AR and WNT signaling to the mammary gland system and breast cancer. We highlight that the role of AR signaling and its interaction with WNT signaling in these two hormone-related cancer types are highly context-dependent.
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Affiliation(s)
- Hubert Pakula
- Division of Genetics, Brigham and Women's Hospital, 77 Avenue Louis Pasteur, Room 466, Boston, MA 02115, USA.
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
| | - Dongxi Xiang
- Division of Genetics, Brigham and Women's Hospital, 77 Avenue Louis Pasteur, Room 466, Boston, MA 02115, USA.
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
| | - Zhe Li
- Division of Genetics, Brigham and Women's Hospital, 77 Avenue Louis Pasteur, Room 466, Boston, MA 02115, USA.
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
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19
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Jakobsen NA, Hamdy FC, Bryant RJ. Novel biomarkers for the detection of prostate cancer. JOURNAL OF CLINICAL UROLOGY 2016; 9:3-10. [PMID: 28344810 PMCID: PMC5356177 DOI: 10.1177/2051415816656121] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 05/04/2016] [Indexed: 01/19/2023]
Abstract
Prostate-specific antigen (PSA) is widely used as a biomarker in the detection of prostate cancer and for decision making regarding treatment options, response to therapy, and clinical follow-up. Despite its widespread use, it is well recognised that PSA has suboptimal performance as a screening tool due to poor specificity, resulting in high negative biopsy rates and potential ‘over-diagnosis’ and ‘over-treatment’ of clinically insignificant cancers. In particular, PSA does not reliably distinguish either cancer from benign prostatic conditions, or ‘clinically significant’ from ‘indolent cancers’, and it is inaccurate in predicting disease burden and response to treatment. There is an urgent demand for novel biomarkers to address these clinical needs. This article provides an update on the novel candidate biomarkers in development, which have shown potential for improving the detection of clinically significant cases of this malignancy.
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20
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Falco M, Palma G, Rea D, De Biase D, Scala S, D'Aiuto M, Facchini G, Perdonà S, Barbieri A, Arra C. Tumour biomarkers: homeostasis as a novel prognostic indicator. Open Biol 2016; 6:160254. [PMID: 27927793 PMCID: PMC5204124 DOI: 10.1098/rsob.160254] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Accepted: 11/10/2016] [Indexed: 12/15/2022] Open
Abstract
The term 'personalized medicine' refers to a medical procedure that consists in the grouping of patients based on their predicted individual response to therapy or risk of disease. In oncologic patients, a 'tailored' therapeutic approach may potentially improve their survival and well-being by not only reducing the tumour, but also enhancing therapeutic response and minimizing the adverse effects. Diagnostic tests are often used to select appropriate and optimal therapies that rely both on patient genome and other molecular/cellular analysis. Several studies have shown that lifestyle and environmental factors can influence the epigenome and that epigenetic events may be involved in carcinogenesis. Thus, in addition to traditional biomarkers, epigenetic factors are raising considerable interest, because they could potentially be used as an excellent tool for cancer diagnosis and prognosis. In this review, we summarize the role of conventional cancer genetic biomarkers and their association with epigenomics. Furthermore, we will focus on the so-called 'homeostatic biomarkers' that result from the physiological response to cancer, emphasizing the concept that an altered 'new' homeostasis influence not only tumour environment, but also the whole organism.
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Affiliation(s)
- Michela Falco
- Struttura Semplice Dipartimentale Sperimentazione Animale, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Via Mariano Semmola, 80131 Naples, Italy
| | - Giuseppe Palma
- Struttura Semplice Dipartimentale Sperimentazione Animale, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Via Mariano Semmola, 80131 Naples, Italy
| | - Domenica Rea
- Struttura Semplice Dipartimentale Sperimentazione Animale, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Via Mariano Semmola, 80131 Naples, Italy
| | - Davide De Biase
- Department of Veterinary Medicine and Animal Production, University of Naples 'Federico II', Via Delpino 1, 80137 Naples, Italy
| | - Stefania Scala
- Molecular lmmunology and Immuneregulation, Istituto Nazionale per lo Studio e la Cura dei Tumori, IRCCS Naples 'Fondazione G. Pascale', Naples, italy, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Via Mariano Semmola, 80131 Naples, Italy
| | - Massimiliano D'Aiuto
- Division of Breast Surgery, Department of Breast Disease, National Cancer Institute, IRCCS, 'Fondazione Pascale', Naples, Italy
| | - Gaetano Facchini
- Division of Medical Oncology, Department of Uro-Gynaecological Oncology, , Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione G. Pascale', IRCCS, 80131 Naples, Italy
| | - Sisto Perdonà
- Department of Urology, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione G. Pascale', IRCCS, 80131 Naples, Italy
| | - Antonio Barbieri
- Struttura Semplice Dipartimentale Sperimentazione Animale, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Via Mariano Semmola, 80131 Naples, Italy
| | - Claudio Arra
- Struttura Semplice Dipartimentale Sperimentazione Animale, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Via Mariano Semmola, 80131 Naples, Italy
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Evans-Axelsson S, Timmermand OV, Bjartell A, Strand SE, Elgqvist J. Radioimmunotherapy for Prostate Cancer--Current Status and Future Possibilities. Semin Nucl Med 2016; 46:165-79. [PMID: 26897720 DOI: 10.1053/j.semnuclmed.2015.10.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Prostate cancer (PCa) is one of the most common cancers in men and is the second leading cause of cancer-related deaths in the USA. In the United States, it is the second most frequently diagnosed cancer after skin cancer, and in Europe it is number one. According to the American Cancer Society, approximately 221,000 men in the United States would be diagnosed with PCa during 2015, and approximately 28,000 would die of the disease. According to the International Agency for Research on Cancer, approximately 345,000 men were diagnosed with PCa in Europe during 2012, and despite more emphasis placed on early detection through routine screening, 72,000 men died of the disease. Hence, the need for improved therapy modalities is of utmost importance. And targeted therapies based on radiolabeled specific antibodies or peptides are a very interesting and promising alternative to increase the therapeutic efficacy and overall chance of survival of these patients. There are currently several preclinical and some clinical studies that have been conducted, or are ongoing, to investigate the therapeutic efficacy and toxicity of radioimmunotherapy (RIT) against PCa. One thing that is lacking in a lot of these published studies is the dosimetry data, which are needed to compare results between the studies and the study locations. Given the complicated tumor microenvironment and overall complexity of RIT to PCa, old and new targets and targeting strategies like combination RIT and pretargeting RIT are being improved and assessed along with various therapeutic radionuclides candidates. Given alone or in combination with other therapies, these new and improved strategies and RIT tools further enhance the clinical response to RIT drugs in PCa, making RIT for PCa an increasingly practical clinical tool.
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Affiliation(s)
- Susan Evans-Axelsson
- Department of Translational Medicine, Division of Urological Cancers, Skåne University Hospital, Malmö, Lund University, Lund, Sweden
| | | | - Anders Bjartell
- Department of Translational Medicine, Division of Urological Cancers, Skåne University Hospital, Malmö, Lund University, Lund, Sweden; Department of Urology, Skåne University Hospital, Malmö, Sweden
| | - Sven-Erik Strand
- Department of Clinical Sciences, Lund, Division of Medical Radiation Physics, Lund University, Lund, Sweden
| | - Jörgen Elgqvist
- Department of Clinical Sciences, Lund, Division of Medical Radiation Physics, Lund University, Lund, Sweden.
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22
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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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23
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Esfahani M, Ataei N, Panjehpour M. Biomarkers for evaluation of prostate cancer prognosis. Asian Pac J Cancer Prev 2016; 16:2601-11. [PMID: 25854335 DOI: 10.7314/apjcp.2015.16.7.2601] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Prostate cancer, with a lifetime prevalence of one in six men, is the second cause of malignancy-related death and the most prevalent cancer in men in many countries. Nowadays, prostate cancer diagnosis is often based on the use of biomarkers, especially prostate-specific antigen (PSA) which can result in enhanced detection at earlier stage and decreasing in the number of metastatic patients. However, because of the low specificity of PSA, unnecessary biopsies and mistaken diagnoses frequently occur. Prostate cancer has various features so prognosis following diagnosis is greatly variable. There is a requirement for new prognostic biomarkers, particularly to differentiate between inactive and aggressive forms of disease, to improve clinical management of prostate cancer. Research continues into finding additional markers that may allow this goal to be attained. We here selected a group of candidate biomarkers including PSA, PSA velocity, percentage free PSA, TGFβ1, AMACR, chromogranin A, IL-6, IGFBPs, PSCA, biomarkers related to cell cycle regulation, apoptosis, PTEN, androgen receptor, cellular adhesion and angiogenesis, and also prognostic biomarkers with Genomic tests for discussion. This provides an outline of biomarkers that are presently of prognostic interest in prostate cancer investigation.
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Affiliation(s)
- Maryam Esfahani
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran E-mail :
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Beretov J, Wasinger VC, Millar EKA, Schwartz P, Graham PH, Li Y. Proteomic Analysis of Urine to Identify Breast Cancer Biomarker Candidates Using a Label-Free LC-MS/MS Approach. PLoS One 2015; 10:e0141876. [PMID: 26544852 PMCID: PMC4636393 DOI: 10.1371/journal.pone.0141876] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2014] [Accepted: 10/14/2015] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION Breast cancer is a complex heterogeneous disease and is a leading cause of death in women. Early diagnosis and monitoring progression of breast cancer are important for improving prognosis. The aim of this study was to identify protein biomarkers in urine for early screening detection and monitoring invasive breast cancer progression. METHOD We performed a comparative proteomic analysis using ion count relative quantification label free LC-MS/MS analysis of urine from breast cancer patients (n = 20) and healthy control women (n = 20). RESULTS Unbiased label free LC-MS/MS-based proteomics was used to provide a profile of abundant proteins in the biological system of breast cancer patients. Data analysis revealed 59 urinary proteins that were significantly different in breast cancer patients compared to the normal control subjects (p<0.05, fold change >3). Thirty-six urinary proteins were exclusively found in specific breast cancer stages, with 24 increasing and 12 decreasing in their abundance. Amongst the 59 significant urinary proteins identified, a list of 13 novel up-regulated proteins were revealed that may be used to detect breast cancer. These include stage specific markers associated with pre-invasive breast cancer in the ductal carcinoma in-situ (DCIS) samples (Leucine LRC36, MAST4 and Uncharacterized protein CI131), early invasive breast cancer (DYH8, HBA, PEPA, uncharacterized protein C4orf14 (CD014), filaggrin and MMRN2) and metastatic breast cancer (AGRIN, NEGR1, FIBA and Keratin KIC10). Preliminary validation of 3 potential markers (ECM1, MAST4 and filaggrin) identified was performed in breast cancer cell lines by Western blotting. One potential marker MAST4 was further validated in human breast cancer tissues as well as individual human breast cancer urine samples with immunohistochemistry and Western blotting, respectively. CONCLUSIONS Our results indicate that urine is a useful non-invasive source of biomarkers and the profile patterns (biomarkers) identified, have potential for clinical use in the detection of BC. Validation with a larger independent cohort of patients is required in the following study.
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Affiliation(s)
- Julia Beretov
- Cancer Care Centre, St George Hospital, Kogarah, Australia
- St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales (UNSW), Kensington, Australia
- SEALS, Anatomical Pathology, St George Hospital, Kogarah, Australia
| | - Valerie C. Wasinger
- Bioanalytical Mass Spectrometry Facility, Mark Wainwright Analytical Centre, UNSW, Kensington, Australia
- School of Medical Sciences, UNSW, Kensington, Australia
| | - Ewan K. A. Millar
- SEALS, Anatomical Pathology, St George Hospital, Kogarah, Australia
- School of Medical Sciences, UNSW, Kensington, Australia
- Cancer Research Program, Kinghorn Cancer Centre and Garvan Institute of Medical Research, Darlinghurst, Australia
- School of Medicine and Health Sciences, University of Western Sydney, Campbelltown, Australia
| | - Peter Schwartz
- Breast Surgery, St George Private Hospital, Kogarah, Australia
| | - Peter H. Graham
- Cancer Care Centre, St George Hospital, Kogarah, Australia
- St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales (UNSW), Kensington, Australia
| | - Yong Li
- Cancer Care Centre, St George Hospital, Kogarah, Australia
- St George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales (UNSW), Kensington, Australia
- * E-mail:
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Wu CC, Lin HY, Wang CP, Lu LF, Yu TH, Hung WC, Houng JY, Chung FM, Lee YJ, Hu JJ. Evaluation of a rapid quantitative determination method of PSA concentration with gold immunochromatographic strips. BMC Urol 2015; 15:109. [PMID: 26530738 PMCID: PMC4630854 DOI: 10.1186/s12894-015-0105-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 10/22/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Prostate cancer remains the most common cancer in men. Qualitative or semi-quantitative immunochromatographic measurements of prostate specific antigen (PSA) have been shown to be simple, noninvasive and feasible. The aim of this study was to evaluate an optimized gold immunochromatographic strip device for the detection of PSA, in which the results can be analysed using a Chromogenic Rapid Test Reader to quantitatively assess the test results. METHODS This reader measures the reflectance of the signal line via a charge-coupled device camera. For quantitative analysis, PSA concentration was computed via a calibration equation. Capillary blood samples from 305 men were evaluated, and two independent observers interpreted the test results after 12 min. Blood samples were also collected and tested with a conventional quantitative assay. RESULTS Sensitivity, specificity, positive and negative predictive values, and accuracy of the PSA rapid quantitative test system were 100, 96.6, 89.5, 100, and 97.4 %, respectively. Reproducibility of the test was 99.2, and interobserver variation was 8 % with a false positive rate of 3.4 %. The correlation coefficient between the ordinary quantitative assay and the rapid quantitative test was 0.960. CONCLUSIONS The PSA rapid quantitative test system provided results quickly and was easy to use, so that tests using this system can be easily performed at outpatient clinics or elsewhere. This system may also be useful for initial cancer screening and for point-of-care testing, because results can be obtained within 12 min and at a cost lower than that of conventional quantitative assays.
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Affiliation(s)
- Cheng-Ching Wu
- Institute of Biomedical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan. .,Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Hung-Yu Lin
- Department of Urology, E-Da Hospital, I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Chao-Ping Wang
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung, 82445, Taiwan. .,School of Medicine for International Students, I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Li-Fen Lu
- Division of Cardiac Surgery, Department of Surgery, E-Da Hospital, I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Teng-Hung Yu
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Wei-Chin Hung
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Jer-Yiing Houng
- Department of Medical Nutrition, Institute of Biotechnology and Chemical Engineering and I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Fu-Mei Chung
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung, 82445, Taiwan.
| | - Yau-Jiunn Lee
- Lee's Endocrinology Clinic, Pingtung, 90000, Taiwan.
| | - Jin-Jia Hu
- Institute of Biomedical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan.
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Srettabunjong S, Betset P, Limawongpranee S, Ekpo P. The Stability of Prostate-Specific Antigen in Semen Under Various Temperatures. J Forensic Sci 2015; 60:1577-81. [PMID: 26174794 DOI: 10.1111/1556-4029.12791] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 06/25/2014] [Accepted: 08/20/2014] [Indexed: 11/29/2022]
Abstract
Prostate-specific antigen (PSA) is most commonly used for identifying semen, especially in the absence of sperm. However, PSA concentration varies according to storage temperature and duration, and little is known about its stability in semen. This study was therefore aimed to determine the stability under five different temperatures: -80, -20, 4, 25, and 37°C; and nine different durations: 1, 2, 3, 5, 7, 14, 30, 90, and 180 days. All samples were stored at -80°C after being secreted from the volunteers' body until analyzed. Results showed that the PSA concentration declined significantly over time under all temperatures studied except -80°C. At -20 and 4°C, PSA was still detectable on Day 180 with 50% and 70% decrease from its original concentration, respectively. At 25 and 37°C, PSA was detected up to Day 7 and 3, respectively. This information might assist forensic scientists understand more about PSA nature and integrate it into their works.
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Affiliation(s)
- Supawon Srettabunjong
- Department of Forensic Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd., Bangkok, 10700, Thailand
| | - Parimol Betset
- Department of Forensic Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd., Bangkok, 10700, Thailand
| | - Suvit Limawongpranee
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd., Bangkok, 10700, Thailand
| | - Pattama Ekpo
- Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Rd., Bangkok, 10700, Thailand
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27
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GuhaThakurta D, Sheikh NA, Fan LQ, Kandadi H, Meagher TC, Hall SJ, Kantoff PW, Higano CS, Small EJ, Gardner TA, Bailey K, Vu T, DeVries T, Whitmore JB, Frohlich MW, Trager JB, Drake CG. Humoral Immune Response against Nontargeted Tumor Antigens after Treatment with Sipuleucel-T and Its Association with Improved Clinical Outcome. Clin Cancer Res 2015; 21:3619-30. [PMID: 25649018 DOI: 10.1158/1078-0432.ccr-14-2334] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 01/27/2015] [Indexed: 01/02/2023]
Abstract
PURPOSE Antitumor activity of cancer immunotherapies may elicit immune responses to nontargeted (secondary) tumor antigens, or antigen spread. We evaluated humoral antigen spread after treatment with sipuleucel-T, an immunotherapy for asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer (mCRPC), designed to target prostatic acid phosphatase (PAP; primary antigen). EXPERIMENTAL DESIGN Serum samples from patients with mCRPC enrolled in the placebo-controlled phase III IMPACT study (evaluable n = 142) were used to assess humoral antigen spread after treatment with sipuleucel-T. Immunoglobulin G (IgG) responses to self-antigens (including tumor antigens) were surveyed using protein microarrays and confirmed using Luminex xMAP. IgG responses were subsequently validated in ProACT (n = 33), an independent phase II study of sipuleucel-T. Association of IgG responses with overall survival (OS) was assessed using multivariate Cox models adjusted for baseline prostate-specific antigen (PSA) and lactate dehydrogenase levels. RESULTS In patients from IMPACT and ProACT, levels of IgG against multiple secondary antigens, including PSA, KLK2/hK2, K-Ras, E-Ras, LGALS8/PCTA-1/galectin-8, and LGALS3/galectin-3, were elevated after treatment with sipuleucel-T (P < 0.01), but not control. IgG responses (≥ 2-fold elevation posttreatment) occurred in ≥ 25% of patients, appeared by 2 weeks after sipuleucel-T treatment, and persisted for up to 6 months. IgG responses to PSA and LGALS3 were associated with improved OS in sipuleucel-T-treated patients from IMPACT (P ≤ 0.05). CONCLUSIONS Sipuleucel-T induced humoral antigen spread in patients with mCRPC. IgG responses were associated with improved OS in IMPACT. The methods and results reported may identify pharmacodynamic biomarkers of clinical outcome after sipuleucel-T treatment, and help in clinical assessments of other cancer immunotherapies. See related commentary by Hellstrom and Hellstrom, p. 3581.
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Affiliation(s)
| | | | - Li-Qun Fan
- Dendreon Corporation, Seattle, Washington
| | | | | | - Simon J Hall
- Mount Sinai School of Medicine, New York, New York
| | - Philip W Kantoff
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Celestia S Higano
- University of Washington School of Medicine and Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Eric J Small
- University of California, San Francisco, San Francisco, California
| | | | | | - Tuyen Vu
- Dendreon Corporation, Seattle, Washington
| | | | | | | | | | - Charles G Drake
- Johns Hopkins University School of Medicine, the Brady Urological Institute, Baltimore, Maryland.
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28
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Timmermand OV, Ulmert D, Evans-Axelsson S, Pettersson K, Bjartell A, Lilja H, Strand SE, Tran TA. Preclinical imaging of kallikrein-related peptidase 2 (hK2) in prostate cancer with a (111)In-radiolabelled monoclonal antibody, 11B6. EJNMMI Res 2014; 4:51. [PMID: 26116115 PMCID: PMC4452661 DOI: 10.1186/s13550-014-0051-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 09/07/2014] [Indexed: 12/01/2022] Open
Abstract
Background Prostate cancer is a leading cause of death in the male population of the western world. Human kallikrein-related peptidase 2 (hK2) is abundantly expressed in malignant prostatic tissue, and its gene, KLK2, is regulated by the androgen receptor. 11B6 is a murine IgG1 monoclonal antibody directed against free human hK2. In this study, we performed a preclinical evaluation of 111In-labelled 11B6 in mouse xenografts to investigate its potential in the clinical staging and assessment of metastatic prostate cancer. Methods 11B6 was radiolabelled with 111In through CHX-A″-DTPA chelation. In vivo biodistribution and uptake of 111In-DTPA-11B6 were measured until 168 h post-injection in NMRI nude mice bearing subcutaneous LNCaP xenografts. The binding specificity to hK2 was evaluated by both in vivo competitive binding assays with excess non-labelled 11B6 and hK2-negative DU145 xenografts. SPECT/CT imaging of subcutaneous and intra-tibial LNCaP xenografts was used to visualize the tumours. Results Tumour uptake of 111In-DTPA-11B6 in LNCaP xenografts was 19% ± 0.78%IA/g at 48 h, giving a tumour-to-blood ratio of 1.6, which increases to 2.4 at 1 week post-injection. Accumulation was low in other organs except for the salivary glands, which is probably the result of cross-reactivity with mouse kallikreins. Significantly lower tumour accumulation was observed in competitive assays and DU145 xenografts. SPECT/CT imaging could clearly visualize the subcutaneous and intra-tibial LNCaP xenografts. Conclusions Our study demonstrates the potential of 111In-DTPA-11B6 for the detection of metastatic prostate cancer and monitoring anti-androgen therapy, as it exhibits an increased uptake and accumulation in viable tumour when compared to normal tissue. A humanised version of the 11B6 monoclonal antibody is currently under evaluation. Electronic supplementary material The online version of this article (doi:10.1186/s13550-014-0051-5) contains supplementary material, which is available to authorized users.
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Hicks C, Koganti T, Giri S, Tekere M, Ramani R, Sitthi-Amorn J, Vijayakumar S. Integrative genomic analysis for the discovery of biomarkers in prostate cancer. Biomark Insights 2014; 9:39-51. [PMID: 25057237 PMCID: PMC4085106 DOI: 10.4137/bmi.s13729] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 04/03/2014] [Accepted: 04/06/2014] [Indexed: 12/18/2022] Open
Abstract
Genome-wide association studies (GWAS) have achieved great success in identifying single nucleotide polymorphisms (SNPs, herein called genetic variants) and genes associated with risk of developing prostate cancer. However, GWAS do not typically link the genetic variants to the disease state or inform the broader context in which the genetic variants operate. Here, we present a novel integrative genomics approach that combines GWAS information with gene expression data to infer the causal association between gene expression and the disease and to identify the network states and biological pathways enriched for genetic variants. We identified gene regulatory networks and biological pathways enriched for genetic variants, including the prostate cancer, IGF-1, JAK2, androgen, and prolactin signaling pathways. The integration of GWAS information with gene expression data provides insights about the broader context in which genetic variants associated with an increased risk of developing prostate cancer operate.
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Affiliation(s)
- Chindo Hicks
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA. ; Department of Medicine, University of Mississippi Medical Center, Jackson, MS, USA. ; Department of Radiation Oncology, University of Mississippi Medical Center, Jackson, MS, USA. ; Department of Public Health Sciences, University of Lusaka, Lusaka, Zambia
| | - Tejaswi Koganti
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - Shankar Giri
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - Memory Tekere
- Department of Environmental Sciences, University of South Africa, UNISA Florida Campus, Florida, South Africa
| | - Ritika Ramani
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | | | - Srinivasan Vijayakumar
- Department of Radiation Oncology, University of Mississippi Medical Center, Jackson, MS, USA
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30
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Stephan C, Ralla B, Jung K. Prostate-specific antigen and other serum and urine markers in prostate cancer. Biochim Biophys Acta Rev Cancer 2014; 1846:99-112. [PMID: 24727384 DOI: 10.1016/j.bbcan.2014.04.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 03/24/2014] [Accepted: 04/01/2014] [Indexed: 11/16/2022]
Abstract
Prostate-specific antigen (PSA) is one of the most widely used tumor markers, and strongly correlates with the risk of harboring from prostate cancer (PCa). This risk is visible already several years in advance but PSA has severe limitations for PCa detection with its low specificity and low negative predictive value. There is an urgent need for new biomarkers especially to detect clinically significant and aggressive PCa. From all PSA-based markers, the FDA-approved Prostate Health Index (phi) shows improved specificity over percent free and total PSA. Other serum kallikreins or sarcosine in serum or urine show more diverging data. In urine, the FDA-approved prostate cancer gene 3 (PCA3) has also proven its utility in the detection and management of early PCa. However, some aspects on its correlation with aggressiveness and the low sensitivity at very high values have to be re-examined. The detection of a fusion of the androgen regulated TMPRSS2 gene with the ERG oncogene (from the ETS family), which acts as transcription factor gene, in tissue of ~50% of all PCa patients was one milestone in PCa research. When combining the urinary assays for TMPRSS2:ERG and PCA3, an improved accuracy for PCa detection is visible. PCA3 and phi as the best available PCa biomarkers show an equal performance in direct comparisons.
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Affiliation(s)
- Carsten Stephan
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany; Berlin Institute for Urologic Research, Berlin, Germany.
| | - Bernhard Ralla
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Klaus Jung
- Department of Urology, Charité - Universitätsmedizin Berlin, Berlin, Germany; Berlin Institute for Urologic Research, Berlin, Germany
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31
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Brito MV, de Oliveira C, Salu BR, Andrade SA, Malloy PMD, Sato AC, Vicente CP, Sampaio MU, Maffei FHA, Oliva MLV. The Kallikrein Inhibitor from Bauhinia bauhinioides (BbKI) shows antithrombotic properties in venous and arterial thrombosis models. Thromb Res 2014; 133:945-51. [PMID: 24642009 DOI: 10.1016/j.thromres.2014.02.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/31/2014] [Accepted: 02/25/2014] [Indexed: 11/17/2022]
Abstract
The Bauhinia bauhinioides Kallikrein Inhibitor (BbKI) is a Kunitz-type serine peptidase inhibitor of plant origin that has been shown to impair the viability of some tumor cells and to feature a potent inhibitory activity against human and rat plasma kallikrein (Kiapp 2.4 nmol/L and 5.2 nmol/L, respectively). This inhibitory activity is possibly responsible for an effect on hemostasis by prolonging activated partial thromboplastin time (aPTT). Because the association between cancer and thrombosis is well established, we evaluated the possible antithrombotic activity of this protein in venous and arterial thrombosis models. Vein thrombosis was studied in the vena cava ligature model in Wistar rats, and arterial thrombosis in the photochemical induced endothelium lesion model in the carotid artery of C57 black 6 mice. BbKI at a concentration of 2.0 mg/kg reduced the venous thrombus weight by 65% in treated rats in comparison to rats in the control group. The inhibitor prolonged the time for total artery occlusion in the carotid artery model mice indicating that this potent plasma kallikrein inhibitor prevented thrombosis.
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Affiliation(s)
- Marlon V Brito
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, Brazil
| | - Cleide de Oliveira
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, Brazil
| | - Bruno R Salu
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, Brazil
| | - Sonia A Andrade
- Laboratório de Bioquímica e Biofísica, Instituto Butantan, Av Vital Brazil, 1500, 05503-900 São Paulo, Brazil
| | - Paula M D Malloy
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, Brazil
| | - Ana C Sato
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, Brazil
| | - Cristina P Vicente
- Universidade Estadual de Campinas, Instituto de Biologia, Rua Charles Darwin, s/n, 13083-863 Campinas, Brazil
| | - Misako U Sampaio
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, Brazil
| | - Francisco H A Maffei
- Departamento de Cirurgia e Ortopedia, Faculdade de Medicina de Botucatu, UNESP, 18618-970, Botucatu, Brazil.
| | - Maria Luiza V Oliva
- Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, Brazil.
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32
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Abstract
This article updates advances in prostate cancer screening based on prostate-specific antigen, its derivatives, and human kallikrein markers. Many men are diagnosed with indolent disease not requiring treatment. Although there is evidence of a survival benefit from screening, the numbers needed to screen and treat remain high. There is risk of exposing men to the side effects of treatment for nonthreatening disease. A screening test is needed with sufficiently good performance characteristics to detect disease at an early stage so treatment may be offered with curative intent, while reducing the number of negative or unnecessary biopsies.
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Affiliation(s)
- Richard J Bryant
- Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Headley Way, Headington, Oxford OX3 9DU, UK
| | - Hans Lilja
- Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Headley Way, Headington, Oxford OX3 9DU, UK; Department of Laboratory Medicine, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue (Mailbox 213), New York, NY 10065, USA; Department of Surgery (Urology), Memorial Sloan-Kettering Cancer Center, 1275 York Avenue (Mailbox 213), New York, NY 10065, USA; Department of Medicine (GU-Oncology), Memorial Sloan-Kettering Cancer Center, 1275 York Avenue (Mailbox 213), New York, NY 10065, USA.
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33
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Végvári A, Sjödin K, Rezeli M, Marko-Varga G. Quantification of human kallikrein-2 in clinical samples by selected reaction monitoring. J Proteome Res 2013; 12:4612-6. [PMID: 23978317 DOI: 10.1021/pr400423k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recently, the number of mass spectrometry-based quantification assays has been increased, partially due to the global efforts of chromosome-centric human proteome project (C-HPP). Our goal at the Chromosome 19 Consortium is to provide novel selected reaction monitoring (SRM) assays of proteins coded on chromosome 19. We have selected the two most useful signature peptides (NSQVWLGR and HNLFEPEDTGQR) of human kallikrein-2 (hK2 - NX_P20151) and developed an SRM assay. Details of the analytical parameters, including multiple transitions by peptides, are presented. The endogenous levels of hK2 were determined in clinical samples (n = 35). The limit of quantification was also estimated by spiking heavy isotope-labeled peptides into seminal plasma samples at various concentrations (LOQ ≈ 29 ng/mL).
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Affiliation(s)
- Akos Végvári
- Clinical Protein Science & Imaging, Biomedical Center, Department of Measurement Technology and Industrial Electrical Engineering, Lund University , BMC C13, 221 84 Lund, Sweden
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Hicks C, Miele L, Koganti T, Vijayakumar S. Comprehensive assessment and network analysis of the emerging genetic susceptibility landscape of prostate cancer. Cancer Inform 2013; 12:175-91. [PMID: 24031161 PMCID: PMC3769142 DOI: 10.4137/cin.s12128] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background Recent advances in high-throughput genotyping have made possible identification of genetic variants associated with increased risk of developing prostate cancer using genome-wide associations studies (GWAS). However, the broader context in which the identified genetic variants operate is poorly understood. Here we present a comprehensive assessment, network, and pathway analysis of the emerging genetic susceptibility landscape of prostate cancer. Methods We created a comprehensive catalog of genetic variants and associated genes by mining published reports and accompanying websites hosting supplementary data on GWAS. We then performed network and pathway analysis using single nucleotide polymorphism (SNP)-containing genes to identify gene regulatory networks and pathways enriched for genetic variants. Results We identified multiple gene networks and pathways enriched for genetic variants including IGF-1, androgen biosynthesis and androgen signaling pathways, and the molecular mechanisms of cancer. The results provide putative functional bridges between GWAS findings and gene regulatory networks and biological pathways.
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Affiliation(s)
- Chindo Hicks
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS. ; Department of Medicine, University of Mississippi Medical Center, Jackson, MS. ; Department of Radiation Oncology, University of Mississippi Medical Center, Jackson, MS
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35
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Prostate-specific antigen kallikrein, non-ST elevation myocardial infarction and a new-onset atrial fibrillation in hypertensive patients. Int J Cardiol 2013; 167:283-4. [DOI: 10.1016/j.ijcard.2012.09.208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Accepted: 09/26/2012] [Indexed: 11/22/2022]
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36
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Kashuba E, Bailey J, Allsup D, Cawkwell L. The kinin-kallikrein system: physiological roles, pathophysiology and its relationship to cancer biomarkers. Biomarkers 2013; 18:279-96. [PMID: 23672534 DOI: 10.3109/1354750x.2013.787544] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The kinin-kallikrein system (KKS) is an endogenous multiprotein cascade, the activation of which leads to triggering of the intrinsic coagulation pathway and enzymatic hydrolysis of kininogens with the consequent release of bradykinin-related peptides. This system plays a crucial role in inflammation, vasodilation, smooth muscle contraction, cardioprotection, vascular permeability, blood pressure control, coagulation and pain. In this review, we will outline the physiology and pathophysiology of the KKS and also highlight the association of this system with carcinogenesis and cancer progression.
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Affiliation(s)
- Elena Kashuba
- Postgraduate Medical Institute, University of Hull, Hull, UK
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37
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Ishige S, Kasamatsu A, Ogoshi K, Saito Y, Usukura K, Yokoe H, Kouzu Y, Koike H, Sakamoto Y, Ogawara K, Shiiba M, Tanzawa H, Uzawa K. Decreased expression of kallikrein-related peptidase 13: possible contribution to metastasis of human oral cancer. Mol Carcinog 2013; 53:557-65. [PMID: 23371469 DOI: 10.1002/mc.22007] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 12/26/2012] [Accepted: 01/04/2013] [Indexed: 01/11/2023]
Abstract
The human kallikrein-related peptidase family is comprised of 15 serine protease genes on chromosome 19q13.4. Our previous microarray analyses showed that the gene kallikrein-related peptidase 13 (KLK13) was down-regulated in oral squamous cell carcinoma (OSCC) cell lines. We evaluated the expression status of KLK13 in primary OSCCs and performed functional molecular experiments in OSCC cell lines. In 102 primary tumors studied, KLK13 expression significantly (P < 0.05) decreased compared with matched normal counterparts. Interestingly, KLK13-negative cases correlated significantly (P < 0.05) with regional lymph node metastasis. In vitro, cells overexpressing KLK13 (oeKLK13) had decreased invasiveness and motility and up-regulation of adhesion molecules (E-cadherin, α-catenin, β-catenin, junction plakoglobin, plakophilin4, desmocollin2, desmoglein3, and desmoplakin) compared with control cells. A rescue experiment that transfected oeKLK13 cells with siRNA against KLK13 restored invasiveness and migration activities with down-regulated adhesion molecules. Based on our results, we concluded that KLK13 may play an important role in regulating cellular migration and invasiveness, making the loss of KLK13 a potential biomarker for early detection of lymph node metastasis in OSCCs.
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Affiliation(s)
- Shunsaku Ishige
- Department of Clinical Molecular Biology, Graduate School of Medicine, Chiba University, Chiba, Japan
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38
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Gallo MF, Snead MC, Black CM, Brown TM, Kourtis AP, Jamieson DJ, Carter M, Penman-Aguilar A, Macaluso M. Optimal methods for collecting and storing vaginal specimens for prostate-specific antigen testing in research studies. Contraception 2012; 87:830-5. [PMID: 23121826 DOI: 10.1016/j.contraception.2012.09.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Accepted: 09/27/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND Prostate-specific antigen (PSA) detected in vaginal fluid can be used in studies of HIV/sexually transmitted infection (STI) and pregnancy prevention as an alternative to relying on participant reports of exposure to semen. Optimal methods for collecting and storing specimens for this testing have not been determined. STUDY DESIGN We conducted a controlled, in vitro experiment of 550 specimens spiked with semen to determine the effects of swab type (five types), storage conditions of the swabs (room temperature with or without desiccant or at -80°C without desiccant) and time from collection to testing (seven intervals over the course of 12 months) on the identification of PSA. We performed factorial analysis of variance to identify factors influencing PSA detection. RESULTS Concentrations of PSA detected in the swabs declined with time of storage over the 1-year experiment (p<.01). The 1-mL, rayon-tipped swab stored immediately at -80°C following collection performed best. CONCLUSIONS If immediate testing or freezer storage is not feasible, investigators should use a swab with 1-mL capacity with processing and testing as soon as possible after specimen collection.
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Affiliation(s)
- Maria F Gallo
- Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, 4770 Buford Highway, Mail Stop K-34, Atlanta, GA 30341-3724, USA.
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Prostate-specific antigen levels in hypertensive patients suffering from a non-ST elevation myocardial infarction or a new-onset atrial fibrillation. Int J Cardiol 2012; 158:380-2. [DOI: 10.1016/j.ijcard.2011.01.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Accepted: 01/23/2011] [Indexed: 11/19/2022]
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Vermassen T, Speeckaert MM, Lumen N, Rottey S, Delanghe JR. Glycosylation of prostate specific antigen and its potential diagnostic applications. Clin Chim Acta 2012; 413:1500-5. [PMID: 22722018 DOI: 10.1016/j.cca.2012.06.007] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2012] [Accepted: 06/04/2012] [Indexed: 01/28/2023]
Abstract
Prostate specific antigen (PSA) assays are widely used for early detection of prostate cancer. However, those analyses are associated with considerable sensitivity and specificity problems. Several approaches have been developed to tackle this issue. PSA is a glycoprotein, which is primarily produced by the prostatic epithelial cells. Aberrant glycosylation modification of proteins is a fundamental characteristic of tumorigenesis. Study of PSA glycoforms offers interesting diagnostic perspectives. Modern technology allows us to analyze PSA glycoforms in a variety of clinical samples (serum or plasma, urine, seminal fluid, tissue). A number of novel techniques, such as lectin-based detection methods, mass spectrometry, 2-dimensional electrophoresis and capillary electrophoresis have been developed to analyze PSA glycosylation. This article reviews the technical and diagnostic aspects of PSA glycoforms.
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Affiliation(s)
- Tijl Vermassen
- Department of Medical Oncology, Ghent University Hospital, Ghent, Belgium
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McDermed JE, Sanders R, Fait S, Klem RE, Sarno MJ, Adams TH, Diamandis EP. Nucleic Acid Detection Immunoassay for Prostate-Specific Antigen Based on Immuno-PCR Methodology. Clin Chem 2012; 58:732-40. [DOI: 10.1373/clinchem.2011.170290] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
BACKGROUND
Serum prostate-specific antigen (PSA) concentrations after radical prostatectomy typically become undetectable with the use of current immunometric assay methods. Despite modern surgical techniques, 15%–30% of prostate cancer patients undergoing radical prostatectomy develop a biochemical recurrence during follow-up. Unfortunately, poor analytical sensitivity of standard PSA assays delays biochemical recurrence detection, and because of day-to-day assay imprecision ultrasensitive PSA assays cannot assess PSA kinetics. We developed an immuno-PCR assay for total PSA that has a limit of quantification >10 times lower than current ultrasensitive assays.
METHODS
The 2-site immunometric assay for total PSA employed 2 monoclonal antibodies, one conjugated to a double-stranded DNA label and the other bound to paramagnetic microparticles. After several washing steps, quantification cycles were determined and values were converted to PSA concentrations. We characterized analytical performance and compared accuracy with a commercially available total PSA assay.
RESULTS
The limit of quantification was 0.65 ng/L and the assay was linear in the range of 0.25–152.0 ng/L. Total imprecision estimates at PSA concentrations of 3.8, 24.1, and 69.1 ng/L were <15.2%, <9.4%, and <10.6%, respectively. Recovery of supplemented PSA ranged from 87.5% to 119.2% (mean 100.3%). Dilution recovery ranged from 96.4% to 115.3% (mean 102.3%). There was no high-dose hook effect up to 50 000 ng/L of PSA. Comparison with the commercial PSA assay showed a regression slope of 1.06 and a correlation coefficient of 0.996.
CONCLUSIONS
The analytical characteristics of the assay support the use of this assay for the accurate and precise measurement of serum PSA, even at sub–nanogram-per-liter concentrations.
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Affiliation(s)
- Jonathan E McDermed
- Iris Molecular Diagnostics, a Division of IRIS International, Inc., Carlsbad, CA
| | - Ron Sanders
- Iris Molecular Diagnostics, a Division of IRIS International, Inc., Carlsbad, CA
| | - Stephen Fait
- Iris Molecular Diagnostics, a Division of IRIS International, Inc., Carlsbad, CA
| | - Robert E Klem
- Iris Molecular Diagnostics, a Division of IRIS International, Inc., Carlsbad, CA
| | - Mark J Sarno
- Iris Molecular Diagnostics, a Division of IRIS International, Inc., Carlsbad, CA
| | - Thomas H Adams
- Iris Molecular Diagnostics, a Division of IRIS International, Inc., Carlsbad, CA
| | - Eleftherios P Diamandis
- Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Department of Clinical Biochemistry, University Health Network
- Department of Laboratory Medicine and Pathobiology, University of Toronto, ON, Canada
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Kim JJ, Kim JT, Yoon HR, Kang MA, Kim JH, Lee YH, Kim JW, Lee SJ, Song EY, Myung PK, Lee HG. Upregulation and secretion of kallikrein-related peptidase 6 (KLK6) in gastric cancer. Tumour Biol 2012; 33:731-8. [PMID: 22373580 DOI: 10.1007/s13277-011-0267-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Accepted: 11/07/2011] [Indexed: 10/28/2022] Open
Abstract
KLK6 encoding kallikrein-related peptidase 6, a trypsin-like serine protease, has been shown to be upregulated in several cancers, although the tumorigenic role of KLK6 has not been elucidated. In this study, KLK6 was identified as a highly upregulated gene in gastric cancer; therefore, the possibility that KLK6 might be a suitable candidate tumor marker was examined. RT-PCR and immunohistochemical analysis showed overexpression of KLK6 in gastric cancer tissues compared to nontumor regions. Sera from gastric cancer patients had a 1.7-fold increase in KLK6 (373.1 μg/L, P = 0.048) compared to healthy individuals (214.2 μg/L), although there was no significant difference among patients with various tumor stages. Cellular invasiveness decreased by 45% in cells transfected with KLK6-specific small interfering RNA. Exogenous overexpression of KLK6 led to decreased activity of the E-cadherin promoter. This study shows that KLK6 is significantly upregulated and secreted in gastric cancer tissues and sera, suggesting that KLK6 might be used as a potential biomarker and therapeutic target for gastric cancer.
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Affiliation(s)
- Jin Ju Kim
- Medical Genomics Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 305-806, Republic of Korea
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Végvári Á, Rezeli M, Sihlbom C, Häkkinen J, Carlsohn E, Malm J, Lilja H, Laurell T, Marko-Varga G. Molecular microheterogeneity of prostate specific antigen in seminal fluid by mass spectrometry. Clin Biochem 2011; 45:331-8. [PMID: 22209970 DOI: 10.1016/j.clinbiochem.2011.11.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 10/28/2011] [Accepted: 11/14/2011] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Prostate specific antigen (PSA) is a widely used and clinically valuable marker for prostate disease. In order to enable the development of new PSA assays and progress the understanding of the biology of PSA we have analyzed PSA in seminal plasma. DESIGN AND METHODS PSA in seminal plasma from men attending a fertility clinic and healthy controls was analyzed using SDS-PAGE, Western blotting and mass spectrometry. RESULTS Using mass spectrometry, different forms of PSA could be identified in 1-9 bands seen on SDS-PAGE analysis of the respective sample. However, a majority of these molecular forms of PSA were not observed on Western blots. Enzymatic activity of PSA isoforms was demonstrated by sequencing data in zymogram gels. Multivariate analysis of clinical data revealed well-separated patient groups. CONCLUSIONS We demonstrated that PSA in seminal plasma occurs in several isoforms, yet not all were detectable using an antibody based clinical routine method. The heterogeneity of PSA expression might be of clinical significance, by an improved patient phenotyping.
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Affiliation(s)
- Ákos Végvári
- Clinical Protein Science & Imaging, Dept. of Measurement Technology and Industrial Electrical Engineering, Lund University, Lund, Sweden.
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Immunostimulatory CpG-DNA and PSA-peptide vaccination elicits profound cytotoxic T cell responses. Urol Oncol 2011; 31:1395-401. [PMID: 21982682 DOI: 10.1016/j.urolonc.2011.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 09/02/2011] [Accepted: 09/06/2011] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Novel strategies for the treatment of advanced prostate cancer (CaP), including immunotherapy or gene therapy, are currently under evaluation with Sipuleucel-T as first FDA-approved immunotherapeutic. Here, we examine cytosine-phosphorothioate-guanine (CpG)-DNA oligonucleotides (ODN) to boost cytokine responses and costimulatory molecule expression on murine bone marrow-derived dendritic cells (mBMDC). Furthermore, we evaluate the potency of a PSA-peptide based vaccine in combination with CpG-DNA to elicit specific cytotoxic T cell (CTL) responses. MATERIALS AND METHODS mBMDC were stimulated with CpG-DNA (1668: 5'-TCCATGACGTTCCTGATGCT-3') or non-stimulatory control-ODN (1720: 5'-TCCATGAGCTTCCTGATGCT-3'). Subsequently, expression of the costimulatory molecules CD40 and CD86 and induction of proinflammatory cytokines (interleukin (IL)-6 and IL-12) were analyzed. For induction of PSA-peptide specific CTL, female C57BL/6 mice were immunized with PSA-peptide 65-73 (HCIRNKSVI) alone or in combination with 1668 or 1720-ODN. In vivo cytotoxicity assay determined PSA-peptide specific cytotoxicity 1 week after vaccination. RESULTS Treatment of mBMDC with stimulatory CpG-DNA ODN resulted in pronounced up-regulation of costimulatory molecule expression on mBMDC in a dose-dependent manner. CpG-ODN significantly increased production of IL-6 and IL-12 in mBMDC (P < 0.001). Induction of PSA-peptide specific CTL responses in mice immunized with PSA-peptide and CpG-DNA were significantly greater than those of PSA-peptide and control-ODN immunized mice or PSA-peptide only vaccination. CONCLUSIONS CpG-DNA acts as potent adjuvant for vaccination therapies and elicits profound PSA-peptide specific CTL responses in combination with an immunodominant PSA-peptide. CpG-ODN mediated immunotherapy represents a potentially inexpensive, safe, easy-to-produce, and easy-to-handle treatment alternative. Therefore, further evaluation of CpG-DNA in immunization therapies against CaP is warranted.
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Shiiki N, Tokuyama S, Sato C, Kondo Y, Saruta J, Mori Y, Shiiki K, Miyoshi Y, Tsukinoki K. Association between saliva PSA and serum PSA in conditions with prostate adenocarcinoma. Biomarkers 2011; 16:498-503. [DOI: 10.3109/1354750x.2011.598566] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Prostate-specific antigen kallikrein and non-ST elevation myocardial infarction. Int J Cardiol 2011; 149:392-3. [DOI: 10.1016/j.ijcard.2011.03.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Accepted: 03/04/2011] [Indexed: 11/17/2022]
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Kim JT, Song EY, Chung KS, Kang MA, Kim JW, Kim SJ, Yeom YI, Kim JH, Kim KH, Lee HG. Up-regulation and clinical significance of serine protease kallikrein 6 in colon cancer. Cancer 2010; 117:2608-19. [DOI: 10.1002/cncr.25841] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 11/03/2010] [Accepted: 11/11/2010] [Indexed: 11/06/2022]
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Bangma CH, van Schaik RH, Blijenberg BG, Roobol MJ, Lilja H, Stenman UH. On the use of prostate-specific antigen for screening of prostate cancer in European Randomised Study for Screening of Prostate Cancer. Eur J Cancer 2010; 46:3109-19. [DOI: 10.1016/j.ejca.2010.09.031] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Revised: 09/16/2010] [Accepted: 09/17/2010] [Indexed: 10/18/2022]
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Gao S, Wu H, Wang F, Wang Z. Altered differentiation and proliferation of prostate epithelium in mice lacking the androgen receptor cofactor p44/WDR77. Endocrinology 2010; 151:3941-53. [PMID: 20519372 PMCID: PMC2940529 DOI: 10.1210/en.2009-1080] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2009] [Accepted: 04/26/2010] [Indexed: 11/19/2022]
Abstract
Although it has been observed that various cofactors modulate activity of the androgen receptor (AR), the specific relationship between AR cofactors and prostate development and functions has not been well studied. To determine whether AR cofactor p44/WDR77 is important in prostate growth and development, we examined prostate architecture in p44/WDR77-null mice and wild-type (WT) littermates. Prostate glands from p44/WDR77-deficient animals were not only smaller than those from WT mice but also had fewer branches and terminal duct tips and were deficient in production of secretory proteins. The p44/WDR77-null prostate tissue was less differentiated and hyperproliferative relative to WT littermates. In addition, the altered expression of androgen-regulated genes was observed in the p44/WDR77-null prostate. Thus, these results suggest that the AR cofactor p44/WDR77 plays important roles in prostate growth and differentiation by modulating AR-target gene expression.
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Affiliation(s)
- Shen Gao
- Department of Cancer Biology, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, USA
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Chao J, Shen B, Gao L, Xia CF, Bledsoe G, Chao L. Tissue kallikrein in cardiovascular, cerebrovascular and renal diseases and skin wound healing. Biol Chem 2010; 391:345-55. [PMID: 20180644 DOI: 10.1515/bc.2010.042] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Tissue kallikrein (KLK1) processes low-molecular weight kininogen to produce vasoactive kinins, which exert biological functions via kinin receptor signaling. Using various delivery approaches, we have demonstrated that tissue kallikrein through kinin B2 receptor signaling exhibits a wide spectrum of beneficial effects by reducing cardiac and renal injuries, restenosis and ischemic stroke, and by promoting angiogenesis and skin wound healing, independent of blood pressure reduction. Protection by tissue kallikrein in oxidative organ damage is attributed to the inhibition of apoptosis, inflammation, hypertrophy and fibrosis. Tissue kallikrein also enhances neovascularization in ischemic heart and limb. Moreover, tissue kallikrein/kinin infusion not only prevents but also reverses kidney injury, inflammation and fibrosis in salt-induced hypertensive rats. Furthermore, there is a wide time window for kallikrein administration in protection against ischemic brain infarction, as delayed kallikrein infusion for 24 h after cerebral ischemia in rats is effective in reducing neurological deficits, infarct size, apoptosis and inflammation. Importantly, in the clinical setting, human tissue kallikrein has been proven to be effective in the treatment of patients with acute brain infarction when injected within 48 h after stroke onset. Finally, kallikrein promotes skin wound healing and keratinocyte migration by direct activation of protease-activated receptor 1.
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Affiliation(s)
- Julie Chao
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, 29425, USA.
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