1
|
Zhu RJ, Zhou J, Liang PQ, Xiang XX, Ran J, Xie TA, Guo XG. Accuracy of cytokeratin 19 fragment in the diagnosis of bladder cancer. Biomark Med 2022; 16:197-216. [PMID: 35112920 DOI: 10.2217/bmm-2021-0754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: CYFRA21-1 is a biomarker of cancer and has a promising future in the diagnosis of bladder cancer. The purpose of this study was to assess the diagnostic accuracy of CYFRA21-1 for bladder cancer. Methods: We included articles from the Cochrane Library, Web of Science, PubMed and Embase. Meta-DiSc 1.4 and Stata 12.0 were used for data analysis. Results: Twenty-eight articles were analyzed, and the results are as follows: sensitivity, specificity, PLR, NLR, DOR and AUC were 0.69 (95% CI [0.67, 0.71]), 0.81 (95% CI [0.80, 0.83]), 5.99 (95% CI [4.42, 8.11]), 0.31 (95% CI [0.25, 0.38]), 24.58 (95% CI [15.15, 39.89]) and 0.8917, respectively. Conclusion: CYFRA21-1 has a high diagnostic efficiency for bladder cancer.
Collapse
Affiliation(s)
- Rui-Jue Zhu
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, China
| | - Jie Zhou
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, China
| | - Pan-Qiao Liang
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, China
| | - Xiao-Xiu Xiang
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, China
| | - Jie Ran
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, China
| | - Tian-Ao Xie
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, China
| | - Xu-Guang Guo
- Department of Clinical Laboratory Medicine, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Department of Clinical Medicine, The Third Clinical School of Guangzhou Medical University, Guangzhou, 511436, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.,Key Laboratory of Reproduction & Genetics of Guangdong Higher Education Institutes, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| |
Collapse
|
2
|
Humayun-Zakaria N, Ward DG, Arnold R, Bryan RT. Trends in urine biomarker discovery for urothelial bladder cancer: DNA, RNA, or protein? Transl Androl Urol 2021; 10:2787-2808. [PMID: 34295762 PMCID: PMC8261432 DOI: 10.21037/tau-20-1327] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 04/23/2021] [Indexed: 02/01/2023] Open
Abstract
Urothelial bladder cancer is a complex disease displaying a landscape of heterogenous molecular subtypes, mutation profiles and clinical presentations. Diagnosis and surveillance rely on flexible cystoscopy which has high accuracy, albeit accompanied by a high-cost burden for healthcare providers and discomfort for patients. Advances in "omic" technologies and computational biology have provided insights into the molecular pathogenesis of bladder cancer and provided powerful tools to identify markers for disease detection, risk stratification, and predicting responses to therapy. To date, numerous attempts have been made to discover and validate diagnostic biomarkers that could be deployed as an adjunct to the cystoscopic diagnosis and long-term surveillance of bladder cancer. We report a comprehensive literature analysis using PubMed to assess the changing trends in investigating DNA, RNA, or proteins as diagnostic urinary biomarkers over a period of 5 decades: 1970-2020. A gradual shift has been observed in research away from protein biomarkers to nucleic acids including different classes of RNA, and DNA methylation and mutation markers. Until 2000, publications involving protein biomarker discovery constituted 87% of the total number of research articles with DNA comprising 6% and RNA 7%. Since 2000 the proportion of protein biomarker articles has fallen to 40%, and DNA and RNA studies increased to 32% and 28%, respectively. Clearly research focus, perhaps driven by technological innovation, has shifted from proteins to nucleic acids. We optimistically hypothesise that, following thorough validation, a clinically useful detection test for bladder cancer based on a panel of DNA or RNA markers could become reality within 5-10 years.
Collapse
Affiliation(s)
- Nada Humayun-Zakaria
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Douglas G Ward
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Roland Arnold
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Richard T Bryan
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| |
Collapse
|
3
|
Liang Q, Zhang G, Li W, Wang J, Sheng S. Comparison of the diagnostic performance of fluorescence in situ hybridization (FISH), nuclear matrix protein 22 (NMP22), and their combination model in bladder carcinoma detection: a systematic review and meta-analysis. Onco Targets Ther 2018; 12:349-358. [PMID: 30643432 PMCID: PMC6317485 DOI: 10.2147/ott.s186065] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Emerging studies reported that combination of fluorescence in situ hybridization (FISH) and nuclear matrix protein 22 (NMP22) could increase the sensitivity and specificity of bladder carcinoma (BC) management. Nevertheless, the reports remain inconsistent. This meta-analysis was undertaken to evaluate the diagnostic performance of FISH, NMP22, and their combination model in BC. Materials and methods A systematic literature search was carried out in PubMed, Embase, Cochrane Library, Web of Science, Chinese National Knowledge Infrastructure, and Wanfang database dated up to October 2018. Suitable studies were identified and raw data were extracted. Meta-analysis was conducted to calculate the global sensitivities, specificities, likelihood ratio, diagnostic odds ratio (DOR), and the areas under the summary receiver operating characteristic (SROC) curves for FISH, NMP22, and their combination model, separately. All the meta-analysis estimates were derived using STATA (version 12.0) and MetaDisc (version 1.4) software packages. Results Seven eligible studies were included for analysis. The global sensitivities with 95% CI for FISH, NMP22, and their combination model were 0.79 (95% CI: 0.75–0.83), 0.76 (95% CI: 0.71–0.81), and 0.82 (95% CI: 0.75–0.88); specificities were 0.85 (95% CI: 0.76–0.91), 0.70 (95% CI: 0.55–0.81), and 0.90 (95% CI: 0.70–0.97); DORs were 22.215 (95% CI: 10.695–46.144), 7.365 (95% CI: 3.986–13.610), and 41.940 (95% CI: 13.546–129.853); and the areas under the SROC curves were 0.86 (95% CI: 0.82–0.88), 0.79 (95% CI: 0.76–0.83), and 0.90 (95% CI: 0.87–0.92). Conclusion Our systematic review implied that the diagnostic performance of combination model of FISH plus NMP22 may outperform FISH or NMP22 alone in BC detection.
Collapse
Affiliation(s)
- Qindong Liang
- Department of Clinical Laboratory, Affiliated Hospital & Clinical Medical College of Chengdu University, Chengdu, Sichuan, China,
| | - Guangjie Zhang
- Department of Clinical Laboratory, Chengdu Fifth People's Hospital, Chengdu, Sichuan, China
| | - Wuxian Li
- Department of Clinical Laboratory, Chongqing Health Center for Women and Children, Chongqing, China
| | - Jing Wang
- Department of Blood Transfusion, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Shangchun Sheng
- Department of Clinical Laboratory, Affiliated Hospital & Clinical Medical College of Chengdu University, Chengdu, Sichuan, China,
| |
Collapse
|
4
|
Tabayoyong W, Kamat AM. Current Use and Promise of Urinary Markers for Urothelial Cancer. Curr Urol Rep 2018; 19:96. [DOI: 10.1007/s11934-018-0857-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
5
|
Maas M, Walz S, Stühler V, Aufderklamm S, Rausch S, Bedke J, Stenzl A, Todenhöfer T. Molecular markers in disease detection and follow-up of patients with non-muscle invasive bladder cancer. Expert Rev Mol Diagn 2018; 18:443-455. [DOI: 10.1080/14737159.2018.1469979] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Moritz Maas
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| | - Simon Walz
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| | - Viktoria Stühler
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| | - Stefan Aufderklamm
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| | - Steffen Rausch
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| | - Jens Bedke
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| | - Arnulf Stenzl
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| | - Tilman Todenhöfer
- Department of Urolo`gy, University Hospital Tuebingen, Tuebingen, Germany
| |
Collapse
|
6
|
D’Costa JJ, Goldsmith JC, Wilson JS, Bryan RT, Ward DG. A Systematic Review of the Diagnostic and Prognostic Value of Urinary Protein Biomarkers in Urothelial Bladder Cancer. Bladder Cancer 2016; 2:301-317. [PMID: 27500198 PMCID: PMC4969711 DOI: 10.3233/blc-160054] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
For over 80 years, cystoscopy has remained the gold-standard for detecting tumours of the urinary bladder. Since bladder tumours have a tendency to recur and progress, many patients are subjected to repeated cystoscopies during long-term surveillance, with the procedure being both unpleasant for the patient and expensive for healthcare providers. The identification and validation of bladder tumour specific molecular markers in urine could enable tumour detection and reduce reliance on cystoscopy, and numerous classes of biomarkers have been studied. Proteins represent the most intensively studied class of biomolecule in this setting. As an aid to researchers searching for better urinary biomarkers, we report a comprehensive systematic review of the literature and a searchable database of proteins that have been investigated to date. Our objective was to classify these proteins as: 1) those with robustly characterised sensitivity and specificity for bladder cancer detection; 2) those that show potential but further investigation is required; 3) those unlikely to warrant further investigation; and 4) those investigated as prognostic markers. This work should help to prioritise certain biomarkers for rigorous validation, whilst preventing wasted effort on proteins that have shown no association whatsoever with the disease, or only modest biomarker performance despite large-scale efforts at validation.
Collapse
Affiliation(s)
- Jamie J. D’Costa
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - James C. Goldsmith
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Jayne S. Wilson
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
- Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Richard T. Bryan
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Douglas G. Ward
- Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| |
Collapse
|
7
|
Huang YL, Chen J, Yan W, Zang D, Qin Q, Deng AM. Diagnostic accuracy of cytokeratin-19 fragment (CYFRA 21-1) for bladder cancer: a systematic review and meta-analysis. Tumour Biol 2015; 36:3137-45. [PMID: 25854170 DOI: 10.1007/s13277-015-3352-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 03/16/2015] [Indexed: 01/18/2023] Open
Abstract
Previous studies have evaluated the accuracy of serum and urinary measurements of cytokeratin-19 fragment (CYFRA 21-1) for the diagnosis of bladder cancer; however, the results have been inconsistent. The aim of this study was to evaluate the overall accuracy of CYFRA 21-1 for the diagnosis of bladder cancer. We performed a search for English-language publications reporting on the detection of CYFRA21-1 levels for the diagnosis of bladder cancer through November 2, 2014, using public medical databases, including EMBASE, Web of Science, and Medline. The quality of the studies was assessed by revised QUADAS tools. The performance characteristics were pooled and analyzed using a bivariate model. Publication bias was explored with the Deek's test. Sixteen studies, with a total 1,262 bladder-cancer patients and 1,233 non-bladder-cancer patients, were included in the study. The pooled sensitivities for serum and urine CYFRA 21-1 were 0.42 (95 % confidence interval (CI), 0.33-0.51) and 0.82 (95 % CI, 0.70-0.90), respectively. The corresponding specificities were 0.94 (95 % CI, 0.90-0.96) and 0.80 (95 % CI, 0.73-0.86), respectively. The areas under the summary receiver-operating-characteristic curves for serum and urine CYFRA 21-1 were 0.88 (95 % CI, 0.85-0.91) and 0.87 (95 % CI, 0.84-0.90), respectively. The major design deficiencies of the included studies were participant-selection bias, potential review, and verification bias. Therefore, we concluded that both serum and urine CYFRA 21-1 served as efficient indexes for bladder-cancer diagnosis. Additional, well-designed studies should be performed to rigorously evaluate the diagnostic value of CYFRA 21-1 for bladder cancer.
Collapse
Affiliation(s)
- Yuan-Lan Huang
- Department of Laboratory Medicine, NO.455 Hospital of PLA, 338 West Huaihai Road, Shanghai, 200052, People's Republic of China
| | | | | | | | | | | |
Collapse
|
8
|
Biomarker in Cisplatin-Based Chemotherapy for Urinary Bladder Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 867:293-316. [PMID: 26530373 DOI: 10.1007/978-94-017-7215-0_18] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The treatment of metastasized bladder cancer has been evolving during recent years. Cisplatin based chemotherapy combinations are still gold standard in the treatment of advanced and metastasized bladder cancer. But new therapies are approaching. Based to this fact biological markers will become more important for decisions in bladder cancer treatment. A systematic MEDLINE search of the key words "cisplatin", "bladder cancer", "DNA marker", "protein marker", "methylation biomarker", "predictive marker", "prognostic marker" has been made. This review aims to highlight the most relevant clinical and experimental studies investigating markers for metastasized transitional carcinoma of the urothelium treated by cisplatin based regimens.
Collapse
|
9
|
Schmitz-Dräger BJ, Droller M, Lokeshwar VB, Lotan Y, Hudson MA, van Rhijn BW, Marberger MJ, Fradet Y, Hemstreet GP, Malmstrom PU, Ogawa O, Karakiewicz PI, Shariat SF. Molecular markers for bladder cancer screening, early diagnosis, and surveillance: the WHO/ICUD consensus. Urol Int 2014; 94:1-24. [PMID: 25501325 DOI: 10.1159/000369357] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Due to the lack of disease-specific symptoms, diagnosis and follow-up of bladder cancer has remained a challenge to the urologic community. Cystoscopy, commonly accepted as a gold standard for the detection of bladder cancer, is invasive and relatively expensive, while urine cytology is of limited value specifically in low-grade disease. Over the last decades, numerous molecular assays for the diagnosis of urothelial cancer have been developed and investigated with regard to their clinical use. However, although all of these assays have been shown to have superior sensitivity as compared to urine cytology, none of them has been included in clinical guidelines. The key reason for this situation is that none of the assays has been included into clinical decision-making so far. We reviewed the current status and performance of modern molecular urine tests following systematic analysis of the value and limitations of commercially available assays. Despite considerable advances in recent years, the authors feel that at this stage the added value of molecular markers for the diagnosis of urothelial tumors has not yet been identified. Current data suggest that some of these markers may have the potential to play a role in screening and surveillance of bladder cancer. Well-designed protocols and prospective, controlled trials will be needed to provide the basis to determine whether integration of molecular markers into clinical decision-making will be of value in the future.
Collapse
|
10
|
Considerations on the use of urine markers in the management of patients with high-grade non-muscle-invasive bladder cancer. Urol Oncol 2014; 32:1069-77. [PMID: 25306288 DOI: 10.1016/j.urolonc.2014.06.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Revised: 06/23/2014] [Accepted: 06/27/2014] [Indexed: 01/26/2023]
Abstract
OBJECTIVE Diagnosis and surveillance of high risk non muscle-invasive bladder cancer (NMIBC) represent specific challenges to urologists. In contrast to low/intermediate risk tumors, these tumors recur more frequently. A significant number will eventually progress to muscle-invasive bladder cancer, a life threatening disease requiring extensive therapeutic efforts. Although clinical risk factors have been identified that may predict tumor recurrence and progression, additional biomarkers are desperately needed to improve tumor diagnosis and guide clinical management of these patients. In this article, the role of molecular urine markers in the management of high risk NMIBC is analyzed. METHODS In this context, several potential indications (diagnostic, prognostic, predictive) were identified and the requirements for molecular markers were defined. In addition, current knowledge within the different indications was summarized. RESULTS Significant progress has been made in the last decade studying the impact of molecular urine markers in patients with high risk NMIBC. CONCLUSIONS Although we may not be ready for the inclusion of molecular markers in clinical decision-making, and many questions remain unanswered, recent studies have identified situations in which the use of molecular markers in particular in high grade tumors may prove beneficial for patient diagnosis and surveillance.
Collapse
|
11
|
Olmsted IR, Hassanein M, Kussrow A, Hoeksema M, Li M, Massion PP, Bornhop DJ. Toward rapid, high-sensitivity, volume-constrained biomarker quantification and validation using backscattering interferometry. Anal Chem 2014; 86:7566-74. [PMID: 24954171 PMCID: PMC4215853 DOI: 10.1021/ac501355q] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Accepted: 06/20/2014] [Indexed: 12/21/2022]
Abstract
Realizing personalized medicine, which promises to enable early disease detection, efficient diagnostic staging, and therapeutic efficacy monitoring, hinges on biomarker quantification in patient samples. Yet, the lack of a sensitive technology and assay methodology to rapidly validate biomarker candidates continues to be a bottleneck for clinical translation. In our first direct and quantitative comparison of backscattering interferometry (BSI) to fluorescence sensing by ELISA, we show that BSI could aid in overcoming this limitation. The analytical validation study was performed against ELISA for two biomarkers for lung cancer detection: Cyfra 21-1 and Galectin-7. Spiked serum was used for calibration and comparison of analytical figures of merit, followed by analysis of blinded patient samples. Using the ELISA antibody as the probe chemistry in a mix-and-read assay, BSI provided significantly lower detection limits for spiked serum samples with each of the biomarkers. The limit of quantification (LOQ) for Cyrfa-21-1 was measured to be 230 pg/mL for BSI versus 4000 pg/mL for ELISA, and for Galectin-7, it was 13 pg/mL versus 500 pg/mL. The coefficient of variation for 5 day, triplicate determinations was <15% for BSI and <10% for ELISA. The two techniques correlated well, ranging from 3-29% difference for Cyfra 21-1 in a blinded patient sample analysis. The label-free and free-solution operation of BSI allowed for a significant improvement in analysis speed, with greater ease, improved LOQ values, and excellent day-to-day reproducibility. In this unoptimized format, BSI required 5.5-fold less sample quantity needed for ELISA (a 10 point calibration curve measured in triplicate required 36 μL of serum for BSI vs 200 μL for ELISA). The results indicate that the BSI platform can enable rapid, sensitive analytical validation of serum biomarkers and should significantly impact the validation bottleneck of biomarkers.
Collapse
Affiliation(s)
- Ian R. Olmsted
- Department
of Chemistry and the Vanderbilt Institute of Chemical Biology, Vanderbilt University, 4226 Stevenson Center, Nashville, Tennessee 37235, United States
| | - Mohamed Hassanein
- Division
of Allergy, Pulmonary and Critical Care Medicine, Thoracic Program,
Vanderbilt Ingram Cancer Center, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37235, United States
| | - Amanda Kussrow
- Department
of Chemistry and the Vanderbilt Institute of Chemical Biology, Vanderbilt University, 4226 Stevenson Center, Nashville, Tennessee 37235, United States
| | - Megan Hoeksema
- Division
of Allergy, Pulmonary and Critical Care Medicine, Thoracic Program,
Vanderbilt Ingram Cancer Center, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37235, United States
| | - Ming Li
- Department
of Biostatistics, Vanderbilt Ingram Cancer Center, Vanderbilt University School of Medicine Nashville, Tennessee 37235, United States
| | - Pierre P. Massion
- Division
of Allergy, Pulmonary and Critical Care Medicine, Thoracic Program,
Vanderbilt Ingram Cancer Center, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37235, United States
- Department
of Cancer Biology, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, Tennessee 37235, United States
- Veterans Affairs,
Tennessee Valley Healthcare System, Nashville Campus, Nashville, Tennessee 37235, United States
| | - Darryl J. Bornhop
- Department
of Chemistry and the Vanderbilt Institute of Chemical Biology, Vanderbilt University, 4226 Stevenson Center, Nashville, Tennessee 37235, United States
| |
Collapse
|
12
|
Xylinas E, Kluth LA, Rieken M, Karakiewicz PI, Lotan Y, Shariat SF. Urine markers for detection and surveillance of bladder cancer. Urol Oncol 2013; 32:222-9. [PMID: 24054865 DOI: 10.1016/j.urolonc.2013.06.001] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 06/04/2013] [Accepted: 06/06/2013] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Bladder cancer detection and surveillance includes cystoscopy and cytology. Urinary cytology is limited by its low sensitivity for low-grade tumors. Urine markers have been extensively studied to help improve the diagnosis of bladder cancer with the goal of complementing or even replacing cystoscopy. However, to date, no marker has reached widespread use owing to insufficient evidence for clinical benefit. MATERIAL AND METHODS Pubmed/Medline search was conducted to identify original articles, review articles, and editorials regarding urine-based biomarkers for screening, early detection, and surveillance of urothelial carcinoma of the bladder. Searches were limited to the English language, with a time frame of 2000 to 2013. Keywords included urothelial carcinoma, bladder cancer, transitional cell carcinoma, biomarker, marker, urine, diagnosis, recurrence, and progression. RESULTS Although several urinary markers have shown higher sensitivity compared with cytology, it remains insufficient to replace cystoscopy. Moreover, most markers suffer from lower specificity than cytology. In this review, we aimed to summarize the current knowledge on commercially available and promising investigational urine markers for the detection and surveillance of bladder cancer. CONCLUSIONS Well-designed protocols and prospective, controlled trials are needed to provide the basis to determine whether integration of biomarkers into clinical decision making will be of value for bladder cancer detection and screening in the future.
Collapse
Affiliation(s)
- Evanguelos Xylinas
- Department of Urology, Weill Medical College of Cornell University, New York-Presbyterian Hospital, New York, NY
| | - Luis A Kluth
- Department of Urology, Weill Medical College of Cornell University, New York-Presbyterian Hospital, New York, NY
| | - Malte Rieken
- Department of Urology, Weill Medical College of Cornell University, New York-Presbyterian Hospital, New York, NY
| | | | - Yair Lotan
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Shahrokh F Shariat
- Department of Urology, Weill Medical College of Cornell University, New York-Presbyterian Hospital, New York, NY; Division of Medical Oncology, Weill Medical College of Cornell University, New York-Presbyterian Hospital, New York, NY; Department of Urology, Medical University of Vienna, Vienna, Austria.
| |
Collapse
|
13
|
Jeong S, Park Y, Cho Y, Kim YR, Kim HS. Diagnostic values of urine CYFRA21-1, NMP22, UBC, and FDP for the detection of bladder cancer. Clin Chim Acta 2012; 414:93-100. [PMID: 22944145 DOI: 10.1016/j.cca.2012.08.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 08/16/2012] [Accepted: 08/20/2012] [Indexed: 11/26/2022]
Abstract
BACKGROUND We compared the diagnostic utilities of CYFRA 21-1, nuclear matrix protein-22 (NMP22), urinary bladder cancer antigen (UBC), and fibrin/fibrinogen degradation products (FDP) for detecting urinary bladder cancer. METHODS We assayed CYFRA 21-1, NMP22, UBC and FDP from urine samples for 250 subjects. Among them, 54 were diagnosed as bladder cancer, and the remaining 196, which consisted of healthy individuals and patients with hematuria, inflammation/infection, or benign prostate hyperplasia, were assigned to the control group. RESULTS Urinary levels of all 4 markers were higher in the bladder cancer group than the control group. The areas under the receiver operating characteristic curves (ROC-AUCs) of CYFRA 21-1, NMP22, UBC and FDP, corrected with urine creatinine concentrations, were 0.90, 0.89, 0.80 and 0.77, respectively, for discriminating bladder cancer from controls. The ROC-AUCs for the combinations of the markers were not significantly higher than those with CYFRA 21-1 or NMP22. NMP22 was the only independent variable for predicting bladder cancer among the four markers in the multivariate analysis. CONCLUSIONS All 4 tumor biomarkers exhibited diagnostic utility for predicting bladder cancer. Among them, CYFRA 21-1 and NMP22 were the most effective at predicting bladder cancer.
Collapse
Affiliation(s)
- Seri Jeong
- Department of Laboratory Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | | | | | | | | |
Collapse
|
14
|
Urine telomerase for diagnosis and surveillance of bladder cancer. Adv Urol 2012; 2012:693631. [PMID: 22888342 PMCID: PMC3410307 DOI: 10.1155/2012/693631] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 05/31/2012] [Accepted: 06/04/2012] [Indexed: 12/18/2022] Open
Abstract
Bladder cancer has increased incidence during last decades. For those patients with nonmuscle involved tumors, noninvasive diagnosis test and surveillance methods must be designed to avoid current cystoscopies that nowadays are done regularly in a lot of patients. Novel urine biomarkers have been developed during last years. Telomerase is important in cancer biology, improving the division capacity of cancer cells. Even urinary telomerase could be a potentially useful urinary tumor marker; its use for diagnosis of asymptomatic and symptomatic patients or its impact during surveillance is still unknown. Moreover, there will need to be uniformity and standardization in the assays before it can become useful in clinical practice. It does not seem to exist a real difference between the most classical assays for the detection of urine telomerase (TRAP and hTERT). However, the new detection methods with modified TeloTAGGG telomerase or with gold nanoparticles must also be taken into consideration for the correct development of this diagnosis method. Maybe the target population would be the high-risk groups within screening programs. To date there is no enough evidence to use it alone and to eliminate cystoscopies from the diagnosis and surveillance of these patients. The combination with cytology or FISH is still preferred.
Collapse
|
15
|
Satyam A, Singh P, Sharma M, Seth A, Sharma A. CYFRA 21-1: a potential molecular marker for noninvasive differential diagnosis of urothelial carcinoma of bladder. Biomarkers 2011; 16:413-21. [PMID: 21777169 DOI: 10.3109/1354750x.2011.582152] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Establishing CYFRA 21-1 detection for noninvasive differential diagnosis of urothelial carcinoma (UC) of bladder would help to improve assessment and follow-up of patients, as well as to improve screening of high-risk groups. The study group comprised of 147 subjects including 72 patients with UC of bladder, 75 controls and 17 follow-up cases. The levels of CYFRA 21-1 in serum, urine and urinary cell lysate were estimated by high sensitivity ELISA. Our results indicate that urinary CYFRA 21-1 provides a high value of overall sensitivity for UC of bladder and is also useful even for detection of low grade tumors that might indicate possible earlier detection and treatment administration.
Collapse
Affiliation(s)
- Abhigyan Satyam
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | | | | | | | | |
Collapse
|
16
|
Sturgeon CM, Duffy MJ, Hofmann BR, Lamerz R, Fritsche HA, Gaarenstroom K, Bonfrer J, Ecke TH, Grossman HB, Hayes P, Hoffmann RT, Lerner SP, Löhe F, Louhimo J, Sawczuk I, Taketa K, Diamandis EP. National Academy of Clinical Biochemistry Laboratory Medicine Practice Guidelines for use of tumor markers in liver, bladder, cervical, and gastric cancers. Clin Chem 2010; 56:e1-48. [PMID: 20207771 DOI: 10.1373/clinchem.2009.133124] [Citation(s) in RCA: 135] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Updated National Academy of Clinical Biochemistry Laboratory Medicine Practice Guidelines for the use of tumor markers in the clinic have been developed. METHODS Published reports relevant to use of tumor markers for 4 cancer sites--liver, bladder, cervical, and gastric--were critically reviewed. RESULTS Alpha-fetoprotein (AFP) may be used in conjunction with abdominal ultrasound for early detection of hepatocellular carcinoma (HCC) in patients with chronic hepatitis or cirrhosis associated with hepatitis B or C virus infection. AFP concentrations >200 microg/L in cirrhotic patients with typical hypervascular lesions >2 cm in size are consistent with HCC. After a diagnosis of HCC, posttreatment monitoring with AFP is recommended as an adjunct to imaging, especially in the absence of measurable disease. Although several urine markers have been proposed for bladder cancer, none at present can replace routine cystoscopy and cytology in the management of patients with this malignancy. Some may, however, be used as complementary adjuncts to direct more effective use of clinical procedures. Although carcinoembryonic antigen and CA 19-9 have been proposed for use gastric cancer and squamous cell carcinoma antigen for use in cervical cancer, none of these markers can currently be recommended for routine clinical use. CONCLUSIONS Implementation of these recommendations should encourage optimal use of tumor markers for patients with liver, bladder, cervical, or gastric cancers.
Collapse
Affiliation(s)
- Catharine M Sturgeon
- Department of Clinical Biochemistry, Royal Infirmary of Edinburgh, Edinburgh, UK.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Abstract
Bladder cancer is one of the most expensive cancers from diagnosis to death of the patient due to life-long surveillance involving upper tract imaging, urinary cytology, and cystoscopy. Cytology has been historically used in conjunction with cystoscopy to help detect disease that may be missed by routine cystoscopy (e.g., carcinoma in situ and upper tract disease). Urine cytology is highly cytopathologist dependent and has reasonable sensitivity for detecting high grade disease. However, its sensitivity drops precipitously with regard to well-differentiated low grade cancers. Intensive investigations have been undertaken using proteomics to find an alternative to cystoscopy and cytology. Urine proteomic markers currently evaluated critically in the literature include bladder tumor antigen, nuclear matrix protein 22, BLCA-4, hyaluronic acid, hyaluronidase, cytokeratin 8, cytokeratin 18, cytokeratin 19, tissue polypeptide antigen, and tissue polypeptide-specific antigen. Markers used as alternatives to cystoscopy must be accurate with high sensitivity and specificity, cost effective for life-long surveillance, and minimally invasive to minimize the burden to the patient. To date, no proteomic marker has been developed that can replace cystoscopy for the detection of bladder cancer. However, several urinary markers appear to have higher sensitivity albeit lower specificity than cytology and can be used to supplement cystoscopy. Some of those markers are herein described in this chapter. By defining and characterizing the current state of the art in protein based markers, we are poised to evaluate and benchmark newly discovered protein biomarkers that will be isolated through new proteomics based investigations of urine.
Collapse
Affiliation(s)
- Kris E Gaston
- Department of Urology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Boulevard, Unit1373, Houston, TX 77030, USA
| | | |
Collapse
|
18
|
Van Tilborg AAG, Bangma CH, Zwarthoff EC. Bladder cancer biomarkers and their role in surveillance and screening. Int J Urol 2009; 16:23-30. [PMID: 19120523 DOI: 10.1111/j.1442-2042.2008.02174.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Early detection of bladder cancer and its recurrences is essential for improved prognosis and long-term survival. The detection and follow-up of these patients is currently based on cystoscopy, which is expensive and invasive, and, in most cases, cytology, which is non-invasive but not very sensitive. During recent years, many urine-based tests have been developed and tested in different patient populations. In this review we discuss new developments for biomarkers in bladder cancer that have potential use in surveillance and screening. In almost all publications authors compare sensitivity of the test with a concomitantly executed cystoscopy, for example, determine cross-sectional sensitivity. However, it has also been shown that false positive test results may be followed by a positive cystoscopy in the near future, showing that cystoscopy itself does not provide 100% sensitivity. This suggests that for a proper evaluation of urine-based tests, longitudinal studies should be carried out and the results communicated to the urologist.
Collapse
Affiliation(s)
- Angela A G Van Tilborg
- Department of Pathology, Josephine Nefkens Institute, Erasmus MC, CA, Rotterdam, The Netherlands
| | | | | |
Collapse
|
19
|
Babjuk M, Soukup V, Pešl M, Koštířová M, Drncová E, Smolová H, Szakacsová M, Getzenberg R, Pavlík I, Dvořáček J. Urinary Cytology and Quantitative BTA and UBC Tests in Surveillance of Patients with pTapT1 Bladder Urothelial Carcinoma. Urology 2008; 71:718-22. [DOI: 10.1016/j.urology.2007.12.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2007] [Revised: 11/25/2007] [Accepted: 12/04/2007] [Indexed: 01/25/2023]
|
20
|
Bian W, Xu Z. Combined assay of CYFRA21-1, telomerase and vascular endothelial growth factor in the detection of bladder transitional cell carcinoma. Int J Urol 2007; 14:108-11. [PMID: 17302565 DOI: 10.1111/j.1442-2042.2007.01670.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND CYFRA21-1, telomerase and vascular endothelial growth factor (VEGF) are regarded as useful tumor markers in the detection of bladder transitional cell carcinoma. However, the sensitivity of each single marker seemed to be unsatisfactory. In the current study, we assessed the sensitivity of the combined assay of these three markers in the detection of human bladder transitional cell carcinoma. METHODS Voided urine samples of 100 patients with bladder transitional cell carcinoma were obtained and each sample was aliquoted for the various assay. Urinary CYFRA21-1 and VEGF were detected by enzyme-linked immunosorbent assay and telomerase detected by the telomeric repeat amplification protocol. The sensitivity of combined assay was compared to that of each single marker and urinary cytology, respectively. RESULTS In the 100 patients, the sensitivity was 74% for urinary CYFRA21-1, 71% for telomerase, 69% for VEGF, and 38% for cytology. CYFRA21-1, telomerase and VEGF proved significantly more sensitive than cytology, respectively (P = 0.000). The sensitivity of the combined assay in the current study was 94% and it was significantly higher than that of cytology, urinary telomerase, CYFRA21-1 or VEGF (P = 0.000). In 50 patients with hematuria but without bladder cancer, the overall specificity of the assays was 78% for CYFRA21-1, 84% for telomerase, 88% for VEGF, and 92% for cytology. CONCLUSIONS Combined assay of the markers which show different characteristics of the tumor behaviors seemed to be of interest in the detection of bladder transitional cell carcinoma.
Collapse
Affiliation(s)
- Wei Bian
- Department of Urology, QiLu Hospital of ShanDong University, Jinan, Shandong Province, China
| | | |
Collapse
|
21
|
Campos-Fernandes JL, Descotes F, André J, Perrin P, Devonec M, Ruffion A. Intérêt des marqueurs urinaires dans le diagnostic et le suivi des tumeurs urothéliales de vessie. Prog Urol 2007; 17:23-34. [PMID: 17373233 DOI: 10.1016/s1166-7087(07)92221-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Urothelial bladder tumours require regular surveillance: cystoscopy associated with urine cytology are reference examinations. Several new markers currently under evaluation or already validated have recently been proposed to replace cytology and potentially reduce or even replace unnecessary cystoscopies. The biological fluid studied for all of these markers is the same as that of urine cytology, i.e. urine. The authors review the results of recent studies on these new urinary markers. The results of these markers demonstrate a better global sensitivity than urine cytology, but often a lower specificity. In the majority of cases, these tests are performed during patient follow-up (NMP22, BTA, CYFRA 21-l., etc.), but do not replace cystoscopy, due to a large number of false-positives. Other techniques, such as FISH, uCyt+ or microsatellites appear to be more promising, especially for the diagnosis of low-grade tumours. The best solution in practice may consist of a combination of several markers to further improve sensitivity and to decrease the false-positive rate responsible for unnecessary cystoscopies.
Collapse
|
22
|
Abstract
The diagnosis of both primary and recurrent bladder tumors currently relies upon the urine cytology and cystoscopy. Neither of these diagnostic tools is completely accurate. Prognostication of bladder cancer is largely based on pathologic tumor grade and stage. Over the past 2 decades, there is accumulating evidence that like many other cancers, bladder cancer, too, has a distinct molecular signature that separates it from other cancers and normal bladder tissue. Bladder tumors of different grades and stages even possess unique, and specific genotypic and phenotypic characteristics. Although recognition of several of these molecular alterations is possible by analyzing tumor tissue, urine, and serum samples, few if any of these "molecular markers" for bladder cancer are widely used in clinical practice. These markers include some that can be applied during the diagnostic work-up of symptoms (e.g., hematuria), those under surveillance for recurrence of superficial disease and forecasting long-term prognosis, or response to chemotherapy. In this review of molecular markers for bladder cancer, effectiveness of markers in each of these categories that are identifiable in the urine of patients with bladder cancer was examined. Many of the diagnostic markers appear to hold an advantage over urine cytology in terms of sensitivity, especially for the detection of low-grade superficial tumors. However, most markers tend to be less specific than cytology, yielding more false-positives. This result is more commonly observed in patients with concurrent bladder inflammation or other benign bladder conditions. Although there are several candidate markers for assessing prognosis or response to chemotherapy, studies of large patient populations are lacking. Further studies involving larger numbers of patients are required to determine their accuracy and widespread applicability in guiding treatment of bladder cancer.
Collapse
|
23
|
Lokeshwar VB, Habuchi T, Grossman HB, Murphy WM, Hautmann SH, Hemstreet GP, Bono AV, Getzenberg RH, Goebell P, Schmitz-Dräger BJ, Schalken JA, Fradet Y, Marberger M, Messing E, Droller MJ. Bladder tumor markers beyond cytology: International Consensus Panel on bladder tumor markers. Urology 2006; 66:35-63. [PMID: 16399415 DOI: 10.1016/j.urology.2005.08.064] [Citation(s) in RCA: 295] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2005] [Accepted: 08/08/2005] [Indexed: 12/27/2022]
Abstract
This is the first of 2 articles that summarize the findings of the International Consensus Panel on cytology and bladder tumor markers. The objectives of our panel were to reach a consensus on the areas where markers are needed, to define the attributes of an ideal tumor marker, and to identify which marker(s) would be suitable for diagnosis and/or surveillance of bladder cancer. Our panel consisted of urologists and researchers from Europe, Asia, and the United States who reviewed original articles, reviews, and book chapters on individual bladder tumor markers published in the English language mainly using the PubMed search engine. Panel members also met during 3 international meetings to write recommendations regarding bladder tumor markers. The panel found that the most practical use of noninvasive tests is to monitor bladder cancer recurrence, thereby reducing the number of surveillance cystoscopies performed each year. Markers also may be useful in the screening of high-risk individuals for early detection of bladder cancer. However, more prospective studies are needed to strengthen this argument. Case-control and cohort studies show that several markers have a higher sensitivity to detect bladder cancer. However, cytology is the superior marker in terms of specificity, although some markers in limited numbers of studies have shown specificity equivalent to that of cytology. Our panel believes that several bladder tumor markers are more accurate in detecting bladder cancer than prostate-specific antigen (PSA) is in detecting prostate cancer. However, bladder tumor markers are held to a higher standard than PSA. Therefore, use of bladder tumor markers in the management of patients with bladder cancer will require the willingness of both urologists and clinicians to accept them.
Collapse
|
24
|
Hakenberg OW, Fuessel S, Richter K, Froehner M, Oehlschlaeger S, Rathert P, Meye A, Wirth MP. Qualitative and quantitative assessment of urinary cytokeratin 8 and 18 fragments compared with voided urine cytology in diagnosis of bladder carcinoma. Urology 2005; 64:1121-6. [PMID: 15596183 DOI: 10.1016/j.urology.2004.08.019] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2004] [Accepted: 08/05/2004] [Indexed: 11/21/2022]
Abstract
OBJECTIVES To evaluate the value of urine tests based on the detection of cytokeratins 8 and 18 for the diagnosis of bladder cancer compared with urine cytology. METHODS Samples from 112 patients before transurethral resection (group 1), 40 patients before secondary surgical treatment (group 2), 29 healthy control subjects (group 3, controls), and 10 women with acute urinary tract infection (group 4, controls) were examined with the UBC Rapid and UBC II enzyme-linked immunosorbent assay (ELISA) tests and voided urine cytology. RESULTS Of the 112 patients in group 1, 90 had transitional cell carcinoma. For the UBC Rapid, UBC ELISA, and cytology, the sensitivity and specificity was 64.4%, 46.6%, and 70.5% and 63.6%, 86.3%, and 79.5%, respectively. The cytology had the greatest accuracy (72.3%) compared with both cytokeratin tests (54.4% and 64.2%). For all three tests, sensitivity increased with tumor grade and stage. In group 2, 16 of 40 patients had residual carcinoma. The sensitivity was similar for all three tests, and the specificity of cytology was lower compared with its specificity in group 1 (47.9% versus 70.5% in group 1). In the controls with or without urinary tract infection, the specificity of cytology was greater than that of both other tests. The combination of the UBC ELISA test with cytology increased the sensitivity to 83% (specificity 68%). CONCLUSIONS Both cytokeratin tests detected patients with transitional cell carcinoma, but were inferior to voided urine cytology in test quality.
Collapse
Affiliation(s)
- Oliver W Hakenberg
- Department of Urology, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Barak V, Goike H, Panaretakis KW, Einarsson R. Clinical utility of cytokeratins as tumor markers. Clin Biochem 2005; 37:529-40. [PMID: 15234234 DOI: 10.1016/j.clinbiochem.2004.05.009] [Citation(s) in RCA: 230] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2004] [Indexed: 12/22/2022]
Abstract
Cytokeratins, belonging to the intermediate filament (IF) protein family, are particularly useful tools in oncology diagnostics. At present, more than 20 different cytokeratins have been identified, of which cytokeratins 8, 18, and 19 are the most abundant in simple epithelial cells. Upon release from proliferating or apoptotic cells, cytokeratins provide useful markers for epithelial malignancies, distinctly reflecting ongoing cell activity. It appears that motifs in certain cytokeratins make them likely substrates for caspase degradation, and their subsequent release occurs during the intermediate events in apoptosis. The clinical value of determining soluble cytokeratin protein fragments in body fluids lies in the early detection of recurrence and the fast assessment of the efficacy of therapy response in epithelial cell carcinomas. The three most applied cytokeratin markers used in the clinic are tissue polypeptide antigen (TPA), tissue polypeptide specific antigen (TPS), and CYFRA 21-1. TPA is a broad spectrum test that measures cytokeratins 8, 18, and 19. TPS and CYFRA 21-1 assays are more specific and measure cytokeratin 18 and cytokeratin 19, respectively. By following patients with repeated testing during management, the oncologist may obtain critical information regarding the growth activity in symptomatic patients. Although their main use is to monitor treatment and evaluate response to therapy, early prognostic information particularly on tumor progression and metastasis formation is also provided for several types of cancers. Cytokeratin tumor markers can accurately predict disease status before conventional methods and offer a simple, noninvasive, cheap, and reliable tool for more efficient management.
Collapse
Affiliation(s)
- Vivian Barak
- Immunology Laboratory for Tumor Diagnosis, Oncology Department, Hadassah University Hospital, Jerusalem, Israel
| | | | | | | |
Collapse
|
26
|
Weikert S, Krause H, Wolff I, Christoph F, Schrader M, Emrich T, Miller K, Müller M. Quantitative evaluation of telomerase subunits in urine as biomarkers for noninvasive detection of bladder cancer. Int J Cancer 2005; 117:274-80. [PMID: 15900578 DOI: 10.1002/ijc.21168] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The aim of our study was to prospectively evaluate the potential diagnostic value and clinical applicability of quantitative analysis of telomerase subunits gene expression in urine for noninvasive detection of bladder cancer. Expression levels of human telomerase reverse transcriptase (hTERT) and human telomerase RNA (hTR) were analyzed by real-time reverse transcriptase polymerase chain reaction (RT-PCR) in urine samples from 163 subjects with bladder cancer and 237 controls (163 individuals with benign genitourinary diseases; 74 healthy subjects). The sensitivity, specificity and optimal cutoffs were determined and compared to the corresponding values obtained by voided urine cytology. Quantitative urinary hTR analysis detects bladder cancer with an overall sensitivity of 77.0%, whereas hTERT analysis reached a sensitivity of 55.2%. The majority of undetected tumors were small, low-grade pTa lesions. Both hTR and hTERT proved to be significantly more sensitive than cytology (34.5%; p < 0.001). Specificities for hTR, hTERT and cytology were 72.1%, 85.0% and 92.7%, respectively, in the total study population and 96.9%, 89.2% and 100%, respectively, in healthy subjects. Higher diagnostic accuracy was achieved by hTR than by hTERT analysis (p < 0.05). The specificity of hTR increased to 85.0% in the total population if urinary leukocyte contamination was excluded. These data suggest that quantitative hTR analysis is the most accurate telomerase-based test for bladder cancer detection and has the potential to replace cytology as a noninvasive biomarker for disease diagnosis and follow-up.
Collapse
Affiliation(s)
- Steffen Weikert
- Department of Urology, Charité--Universitätsmedizin Berlin, Campus B. Franklin, Berlin, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Abstract
Although the current system of classifying bladder cancer by stage and histological grade is very useful, it is still difficult to predict the natural progression of the disease either with or without therapy. Cystoscopy and urine cytology are currently the gold standards in the monitoring and diagnosis of bladder cancer. Classical urine cytology is, however, at least in the diagnosis of G1-tumors, characterized by a relatively low sensitivity. In the last few years, the molecular biological investigation of the basic mechanisms involved in carcinogenesis has provided a host of markers which are of potential diagnostic value for bladder cancer. We provide a current, comprehensive review of the literature on bladder tumor markers and summarize their diagnostic and prognostic potential. At present, no diagnostic marker with a comparable sensitivity and specificity to cystoscopy exists, given that cystoscopy has never been evaluated. The combined analysis of several tumor markers seems to be the most promising approach as an adjunct to cystoscopy. Moreover, the increasing simplification of test systems will increase their acceptance by clinicians.
Collapse
Affiliation(s)
- I Kausch
- Urologische Klinik und Poliklinik, Medizinische Universität zu Lübeck
| | | |
Collapse
|
28
|
|
29
|
Parekattil SJ, Fisher HAG, Kogan BA. Neural network using combined urine nuclear matrix protein-22, monocyte chemoattractant protein-1 and urinary intercellular adhesion molecule-1 to detect bladder cancer. J Urol 2003; 169:917-20. [PMID: 12576812 DOI: 10.1097/01.ju.0000051322.60266.06] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PURPOSE We developed a neural network to identify patients with bladder cancer more effectively than hematuria and cytology. The algorithm is based on combined urine levels of nuclear matrix protein-22, monocyte chemoattractant protein-1 and urinary intercellular adhesion molecule-1. MATERIALS AND METHODS A randomized double-blinded study of voided urine from 253 patients undergoing outpatient cystoscopy was performed. Of the patients 27 had bladder cancer on biopsy and 5 had muscle invasion. Urine tumor markers were measured using sandwich-enzyme-linked immunosorbent assay kits. Urine from patients with bladder cancer on cystoscopy was compared to urine from controls with negative cystoscopy results. An algorithm was created with 3 sets of cutoff values modeled to be 100% sensitive for superficial bladder cancer, 100% specific for superficial cancer and 100% specific for muscle invasive cancer, respectively. We compared our model to hematuria and cytology. RESULTS For the hematuria dipstick test sensitivity, specificity, positive and negative predictive values were 92.6%, 51.8%, 18.7% and 98.2%, respectively. For atypical cytology sensitivity, specificity, positive and negative predictive values were 66.7%, 81%, 29.5% and 95.3%, respectively. For the sensitive model set sensitivity, specificity, positive and negative predictive values were 100%, 75.7%, 32.9% and 100%, respectively. For the specific model set sensitivity, specificity, positive and negative predictive values were 22.2%, 100%, 100% and 91.5%, respectively. For the muscle invasive model set sensitivity, specificity, positive and negative predictive values were 80%, 100%, 100% and 99.6%, respectively. The standard bladder tumor evaluation of 253 patients costs 61,054 US dollars but 36,450 US dollars using our model. CONCLUSIONS Our algorithm is superior to conventional screening tests for bladder cancer. The model identifies patients who require cystoscopy, those with bladder cancer and those with muscle invasive disease. It provides possible savings over current screening methods. The potential loss of other information by not performing cystoscopy was not evaluated in our study.
Collapse
|
30
|
Nisman B, Barak V, Shapiro A, Golijanin D, Peretz T, Pode D. Evaluation of urine CYFRA 21-1 for the detection of primary and recurrent bladder carcinoma. Cancer 2002; 94:2914-22. [PMID: 12115379 DOI: 10.1002/cncr.10565] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND The urinary concentration of soluble cytokeratin 19 fragments, measured by the CYFRA 21-1 assay, may be used for the noninvasive, early detection of bladder carcinoma. METHODS This prospective study examined urine samples from 325 patients. The authors included 152 patients who presented with hematuria or irritative voiding symptoms (Group 1), 107 patients who were under surveillance after undergoing transurethral resection of bladder carcinoma (Group 2), 46 patients with urinary tract pathology other than bladder carcinoma (Group 3), and 20 healthy participants (Group 4). The urine concentration of CYFRA 21-1 was measured by an immunoradiometric assay. The patients in Groups 1 and 2 underwent cytoscopy and urine cytopathology. Biopsies were obtained if a tumor was seen on cytoscopy or if there was a suspicion of carcinoma in situ (CIS). RESULTS The optimal cut-off concentration for the detection of primary bladder tumors, 4.9 microg/L, resulted in a sensitivity of 79.3% and a specificity of 88.6%. The optimal threshold for the detection of recurrent bladder tumors (excluding patients who had been treated with intravesical bacillus Calmette-Guerin [BCG]), 4.04 microg/L, resulted in a sensitivity of 76.2% and a specificity of 84.2%. There was no significant advantage for centrifugation of the urine samples or for determination of the creatinine concentration in the urine samples. The CYFRA 21-1 assay of urine samples provided a three-fold greater sensitivity compared with the sensitivity of cytology for detecting Grade 1 transitional cell tumors. CYFRA 21-1 detected 91.9% of Grade 3 tumors, 100% of CIS, and 92.8% of invasive bladder tumors (T2 or higher classification). The CYFRA 21-1 assay detected all tumors that had positive cytology with the exception of only one tumor. Conversely, the assay identified 71% of primary tumors and 65% of recurrent tumors that were missed by cytopathology. Urinary stones, infection, and previous intravesical BCG immunotherapy caused many false positive results. CONCLUSIONS The urinary CYFRA 21-1 assay is a useful test for the noninvasive detection of bladder carcinoma and for surveillance of patients who were not treated previously with BCG. It may be used in combination with urine cytology and bladder ultrasound. Multi-institutional trials are required to compare the accuracy as well as the cost of this combination of tests with cystoscopy.
Collapse
Affiliation(s)
- Benjamin Nisman
- Department of Oncology, Hadassah University Hospital, Jerusalem, Israel.
| | | | | | | | | | | |
Collapse
|
31
|
Babjuk M, Kostírová M, Mudra K, Pecher S, Smolová H, Pecen L, Ibrahim Z, Dvorácek J, Jarolím L, Novák J, Zima T. Qualitative and quantitative detection of urinary human complement factor H-related protein (BTA stat and BTA TRAK) and fragments of cytokeratins 8, 18 (UBC rapid and UBC IRMA) as markers for transitional cell carcinoma of the bladder. Eur Urol 2002; 41:34-9. [PMID: 11999463 DOI: 10.1016/s0302-2838(01)00015-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To evaluate the role of BTA stat, BTA TRAK, UBC Rapid, UBC IRMA and voided urinary cytology in the detection of bladder transitional cell carcinoma (TCC). METHODS The study included 78 patients with TCC of the bladder (group A), 62 patients with a history of bladder TCC without tumor recurrence at the time of examination (B, control group), 20 patients with other malignancy of the urinary tract (C), 38 patients with non-malignant urinary tract diseases (D), 10 patients with urinary tract infection (E) and 10 healthy volunteers (F). Except in group F, voided urine was collected before cystoscopy or cystectomy. RESULTS The specificity and sensitivity in bladder cancer detection were 87.1 and 74.4%, respectively with BTA stat, 79.3 and 48.7%, respectively with UBC Rapid, 100 and 33.3%, respectively with cytology, 72.6 and 75.6%, respectively with BTA TRAK, 64.5 and 70.5%, respectively with UBC IRMA. CONCLUSIONS The BTA stat and BTATRAK tests are superior to UBC Rapid, UBC IRMA and urinary cytology in detection of bladder TCC. In daily practice however cytology remains the best adjunct to cystoscopy because of its high sensitivity in Tis and 100% specificity. Cystoscopy cannot be replaced by any of evaluated methods.
Collapse
Affiliation(s)
- M Babjuk
- Department of Urology, General Teaching Hospital, 1st Medical Faculty, Charles University, Postgraduate Institute, Prague, Czech Republic.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Sánchez-Carbayo M, Urrutia M, González de Buitrago JM, Navajo JA. Utility of serial urinary tumor markers to individualize intervals between cystoscopies in the monitoring of patients with bladder carcinoma. Cancer 2001; 92:2820-8. [PMID: 11753955 DOI: 10.1002/1097-0142(20011201)92:11<2820::aid-cncr10092>3.0.co;2-i] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Cross-section studies have shown the diagnostic characteristics of certain urinary tumor markers for the detection of bladder carcinoma. However, the role of serial urinary tumor markers in the monitoring of patients with bladder carcinoma in daily clinical surveillance has not been completely defined yet. METHODS The study comprised 1185 urine samples belonging to 232 patients with a previous bladder carcinoma: 106 patients under follow-up (Group 1) and 126 bladder carcinoma patients receiving intravesic instillations (Group 2). Patients were monitored with urinary tumor markers during a one-year follow-up period. Urine samples were collected before cystoscopies and in the intercystoscopic periods for patients in Group 1 and before intravesic instillations for patients Group 2. Urinary bladder carcinoma antigen (UBC), CYFRA 21-1 and nuclear matrix proteins (NMP22) were measured by immunoassays. RESULTS Monitoring of the disease with urinary tumor markers could detect recurrence sooner than scheduled cystoscopies in 27 patients (87%) for UBC, 27 patients (87%) for CYFRA 21-1, and 26 patients (84%) for NMP22 out of 31 Group 1 patients who recurred; and in 16 patients (67%) for UBC, 17 patients (71%) for cytokeratin fragments (CYFRA) 21-1, and 13 patients (54%) for NMP22 out of 24 Group 2 patients who recurred. The most relevant finding was that persistence of negative urinary markers during follow-up was largely indicative of disease free status in 65 of 75 (87%) patients of Group 1 and 31 of 102 (30%) cases of Group 2. Although false positive results were present, they were mainly associated with sporadic urinary tract infections in 10 of 75 (13%) cases of Group 1 and in 36 of 102 (35%) patients of Group 2; and with urine samples collected in the first two months at the beginning of intravesic therapy in 35 of 102 patients (34%) in Group 2. CONCLUSIONS Monitoring of bladder carcinoma patients with serial urinary tumor markers could anticipate detection of recurrence. Persistent negative results might postpone and reduce the number of cystoscopies. Once the limitations leading to false positive results are controlled by urinalysis and by starting sample collection when basal levels are reached in patients with intravesic therapy, urinary tumor markers might eventually individualize the intervals between cystoscopies in the surveillance of patients with bladder carcinoma.
Collapse
|
33
|
Sánchez-Carbayo M, Ciudad J, Urrutia M, Navajo JA, Orfao A. Diagnostic performance of the urinary bladder carcinoma antigen ELISA test and multiparametric DNA/cytokeratin flow cytometry in urine voided samples from patients with bladder carcinoma. Cancer 2001; 92:2811-9. [PMID: 11753954 DOI: 10.1002/1097-0142(20011201)92:11<2811::aid-cncr10101>3.0.co;2-t] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The objective of the current study was to comparatively analyze the sensitivity and specificity of flow cytometric DNA/cytokeratin 8/18 measurements and the urinary bladder carcinoma antigen (UBC) enzyme linked immunoabsorbent assay (ELISA) test for the detection of bladder carcinoma in voided urine samples. METHODS Eighty-one fresh urine voided samples, preserved frozen for a maximum period of 3 months, belonging to patients with an active bladder carcinoma (n = 37), patients who were free of disease as confirmed by cystoscopy (n = 19), patients receiving intravesical therapy (n = 17), and individuals with other benign and malignant conditions (n = 8), were collected. Flow cytometry measurements of thawed samples were based on the detection of cytokeratin (CK) 8+ and CK18+ cells using the 3F3 and 6D7 monoclonal antibodies alone or in combination with the measurement of cell DNA contents, after propidium iodide staining. Urinary bladder carcinoma antigen test was measured by ELISA. RESULTS Patients were grouped according to the presence (n = 44) or absence (n = 29) of bladder carcinoma as confirmed by cystoscopy, and taking cutoffs of 9.7 microg/L for UBC-ELISA, 75% for the percentage of 3F3 (+) and 6D7 (+) cells, and 10.6% for the proportion of hyperdiplod cells that suggested a specificity of 83%, the individual sensitivity obtained for each parameter was 77%, 5%, 9%, and 77%, respectively. The presence of DNA aneuploid populations showed a relatively low sensitivity (36%) although it was the most specific parameter (93%). Combining UBC antigen test with the proportion of cells showing DNA content higher than 2n increased to 89% the sensitivity of the UBC antigen alone. However, false-positive results for both techniques were found in individuals with urologic diseases other than bladder carcinoma and in patients receiving intravesical therapy. CONCLUSIONS The authors' results suggest that the combined use of the UBC antigen test and DNA/cytokeratin flow cytometry double stainings for the analysis of freshly obtained urine voided samples, cryopreserved to assure cellular integrity, is of great clinical utility for the detection of tumor recurrence in patients with bladder carcinoma.
Collapse
Affiliation(s)
- M Sánchez-Carbayo
- Servicio de Bioquímica, Hospital Universitario de Salamanca, Centro de Investigacion del Cancer/Instituto mixto de Biologia Molecular y Celular del Cancer, Salamanca, Spain.
| | | | | | | | | |
Collapse
|
34
|
Abstract
Cystoscopy is currently considered the gold standard for the detection of bladder tumors. The role of urine cytology in the initial detection and follow-up of patients is under discussion. New elaborative and rapid assays are available that may circumvent the low sensitivity and poor reproducibility of urine cytology. The methods that have been tested extensively are the nuclear matrix protein (NMP22) assay, the BTA stat assay, and the BTA TRAK enzyme-linked immunosorbent assay. Both outperform cytology in the detection of low-grade lesions. The specificity of both assays, however, lags behind that of cytology. The data from retrospective analyses are insufficient to justify clinical integration, and the need to replace cystoscopy with these novel assays remains to be proven.
Collapse
Affiliation(s)
- H G van der Poel
- Department of Urology, Antoni van Leeuwenhoek Hospital/NKI, Amsterdam, The Netherlands.
| | | |
Collapse
|
35
|
Boman H, Hedelin H, Holmäng S. Urine tissue-polypeptide-specific antigen (TPS) as a marker for bladder cancer. SCANDINAVIAN JOURNAL OF UROLOGY AND NEPHROLOGY 2001; 35:270-4. [PMID: 11676350 DOI: 10.1080/003655901750425828] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
OBJECTIVES To determine the sensitivity and specificity of urine tissue-polypeptide-specific antigen (TPS) for bladder carcinomas and to evaluate whether urine TPS is influenced by tumour size, number, grade and stage. PATIENTS AND METHODS A total of 260 patients entered the study, one group (n = 151) with known bladder cancer disease (79 with recurrent tumour and 72 with no tumour at cystoscopy). The other group (n = 109) consisted of patients without previously known bladder tumour disease, 55 with newly detected bladder tumour(s) and 54 investigated for microhematuria found to be idiopathic. TPS in urine was measured using an ELISA-kit, a solid phase two-site immunosorbent assay with polyclonal antibodies against cytokeratin 18. RESULTS Urine TPS was significantly higher in patients with bladder tumours (p < 0.001). There was a significant correlation between TPS and tumour size (p = 0.004), grade (p = 0.001) and stage (p = 0.001). Tumour number was not significantly correlated to urine TPS (p = 0.75). With TPS 42 as a cut-off level, the sensitivity was 73% for newly detected tumours and 50% for recurrences; the specificity was 70% and 63% respectively. With a 95% specificity, the sensitivity for newly detected tumours was 33% and for recurrences 18%. The lower sensitivity and specificity for recurrences was mainly explained by differences in tumour size, grade and stage between the recurrences and the newly detected tumours. CONCLUSIONS Urine TPS is a marker for bladder carcinoma correlated to size, grade and stage. The sensitivity and specificity for newly detected tumours are quite comparable with other markers. Its clinical usefulness is however not established and it appears less useful in the follow-up of patients with known bladder tumour disease.
Collapse
Affiliation(s)
- H Boman
- Department of Surgery, Alingsås Hospital, Sweden
| | | | | |
Collapse
|
36
|
COMPARATIVE EVALUATION OF THE DIAGNOSTIC PERFORMANCE OF THE BTA STAT TEST, NMP22 AND URINARY BLADDER CANCER ANTIGEN FOR PRIMARY AND RECURRENT BLADDER TUMORS. J Urol 2001. [DOI: 10.1016/s0022-5347(05)65965-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
37
|
COMPARATIVE PREDICTIVE VALUES OF URINARY CYTOLOGY, URINARY BLADDER CANCER ANTIGEN, CYFRA 21-1 AND NMP22 FOR EVALUATING SYMPTOMATIC PATIENTS AT RISK FOR BLADDER CANCER. J Urol 2001. [DOI: 10.1097/00005392-200105000-00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
38
|
SÁNCHEZ-CARBAYO M, URRUTIA M, SILVA J, ROMANÍ R, DE BUITRAGO JGONZÁLEZ, NAVAJO J. COMPARATIVE PREDICTIVE VALUES OF URINARY CYTOLOGY, URINARY BLADDER CANCER ANTIGEN, CYFRA 21-1 AND NMP22 FOR EVALUATING SYMPTOMATIC PATIENTS AT RISK FOR BLADDER CANCER. J Urol 2001. [DOI: 10.1016/s0022-5347(05)66328-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- M. SÁNCHEZ-CARBAYO
- From the Servicio de Bioquímica and Servicio de Urologia, Hospital Universitario de Salamanca, Salamanca, Spain
| | - M. URRUTIA
- From the Servicio de Bioquímica and Servicio de Urologia, Hospital Universitario de Salamanca, Salamanca, Spain
| | - J.M. SILVA
- From the Servicio de Bioquímica and Servicio de Urologia, Hospital Universitario de Salamanca, Salamanca, Spain
| | - R. ROMANÍ
- From the Servicio de Bioquímica and Servicio de Urologia, Hospital Universitario de Salamanca, Salamanca, Spain
| | - J.M. GONZÁLEZ DE BUITRAGO
- From the Servicio de Bioquímica and Servicio de Urologia, Hospital Universitario de Salamanca, Salamanca, Spain
| | - J.A. NAVAJO
- From the Servicio de Bioquímica and Servicio de Urologia, Hospital Universitario de Salamanca, Salamanca, Spain
| |
Collapse
|
39
|
Abstract
PURPOSE A number of urine based markers have been and are being investigated for the diagnosis and prognostication of urological conditions. A majority of these markers have been evaluated in urological neoplasms, particularly bladder cancer. The diagnosis of bladder cancer currently relies on identifying malignant cells in the urine and subsequently visualizing the tumor on cystoscopy. This diagnosis is further confirmed by transurethral resection or biopsy. While urine cytology is specific, it is not sensitive, especially for detecting low grade disease. This characteristic has prompted the search for more accurate markers of bladder cancer. In this review we critically examine the results of studies evaluating various markers for bladder cancer. MATERIALS AND METHODS The published literature on urine based markers for all urological diseases, particularly bladder cancer, was identified using a MEDLINE search and critically analyzed. The sensitivity, specificity, positive and negative predictive values of the various markers were compared. The benefit of using combined markers rather than a single marker was also analyzed from published reports. RESULTS Most published literature on urine based markers for urological malignancies involve such markers for diagnosing and prognosticating bladder cancer. Hence, we focused mainly on urine based markers in bladder cancer. Most markers appear to have an advantage over urine cytology in terms of sensitivity, especially for detecting low grade, superficial tumors. However, most markers tend to be less specific than cytology, yielding more false-positive results. This scenario is more common in patients with concurrent bladder inflammation or other benign bladder conditions. However, there is reason to be optimistic about several new markers that appear to provide better specificity. Few urine based markers have been identified and investigated in other urological tumors. CONCLUSIONS Detecting bladder cancer using diagnostic markers still presents a challenge. A number of new markers are currently available that appear to be significantly more accurate than cytology. However, further studies involving a larger number of patients are required to determine their accuracy and widespread applicability for diagnosing bladder cancer. Urine based markers do not appear to have a significant role in the diagnosis or prognosis of other urological malignancies, such as prostate, kidney or testicular cancer.
Collapse
Affiliation(s)
- B R Konety
- Department of Urology, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | | |
Collapse
|
40
|
IMMUNOSTAINING OF CYTOKERATIN 20 IN CELLS FROM VOIDED URINE FOR DETECTION OF BLADDER CANCER. J Urol 2000. [DOI: 10.1097/00005392-200012000-00013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
41
|
|
42
|
Mian C, Lodde M, Haitel A, Egarter Vigl E, Marberger M, Pycha A. Comparison of two qualitative assays, the UBC rapid test and the BTA stat test, in the diagnosis of urothelial cell carcinoma of the bladder. Urology 2000; 56:228-31. [PMID: 10925083 DOI: 10.1016/s0090-4295(00)00664-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVES To compare the diagnostic value of two rapid tests, the bladder tumor antigen (BTA stat) test and the newly developed urinary bladder cancer (UBC) Rapid test, in patients having symptoms suggestive of urothelial cell carcinoma (UCC) and patients being followed up after transurethral resection. METHODS One hundred eighty patients with a mean age of 65.8 years (range 22 to 92) were included in the present study. The tests were performed on voided urine samples. Fifty-seven patients had symptoms suggestive of UCC and 123 patients were being followed up after complete transurethral resection of UCC. The voided urine was evaluated by the BTA stat and UBC Rapid test, which detects cytokeratins 8 and 18. All patients underwent subsequent cystoscopic evaluation and biopsy of any suspicious lesion. RESULTS In 53 patients with histologically proved UCC, the BTA stat had a sensitivity of 52.8% and the UBC Rapid test of 66%. According to the histologic stage, the sensitivity of the BTA stat was 42.8% in pTa tumors, 61.5% in pT1, and 70% in pT2 or higher tumors. The sensitivity of the UBC test was 60.7% in pTa, 69. 2% in pT1, and 80% in pT2 or higher tumors. For histologic grades 1 to 3, the sensitivity was 38.8%, 52.6%, and 68.7% for the BTA stat and 44.4%, 78.9%, and 75% for the UBC Rapid test, respectively. The specificity was 70% and 90% for the BTA stat and UBC Rapid test, respectively. CONCLUSIONS The UBC Rapid test was superior to the BTA stat in both sensitivity and specificity. Both assays are simple office procedures and require no special knowledge. However, they cannot replace, but only lower, the number of cystoscopies during the follow-up of patients with previous UCC of the bladder.
Collapse
Affiliation(s)
- C Mian
- Department of Clinical Pathology, General Hospital of Bolzano, Bolzano, Italy
| | | | | | | | | | | |
Collapse
|
43
|
|