Database: Ovid MEDLINE(R) <2006 to March Week 3 2010> Search Strategy: -------------------------------------------------------------------------------1 exp *tumor markers, biological/ (16660) 2 exp *male urogenital diseases/di (9527) 3 1 and 2 (897) 4 limit 3 to (english language and humans) (793) 5 limit 4 to "review articles" (126) 6 marker$.ti. and 5 (35) 7 from 6 keep 9-11,13,15,20-21,24,29,33-35 (12) 8 6 not 7 (23) 9 from 8 keep 1-23 (23) *************************** <1> Unique Identifier 19578355 Status MEDLINE Authors Ulmert D. O'Brien MF. Bjartell AS. Lilja H. Authors Full Name Ulmert, David. O'Brien, M Frank. Bjartell, Anders S. Lilja, Hans. Institution Department of Urology, University Hospital Malmo, Lund University, Sweden. Title Prostate kallikrein markers in diagnosis, risk stratification and prognosis. [Review] [91 refs] Source Nature Reviews Urology. 6(7):384-91, 2009 Jul. Abstract The kallikrein, prostate-specific antigen (PSA), is one of the world's most frequently used disease biomarkers. After almost two decades of research and clinical experience, the diagnostic and monitoring limitations of PSA are beginning to be understood. Most physicians are aware of PSA's low specificity for cancer among older men with benign prostatic conditions; fewer are aware of recent data, which show that a prior negative biopsy or a prior PSA value below the threshold for biopsy might compromise the predictive accuracy of PSA even further. Furthermore, a subtle increase in serum PSA level during early middle age is strongly correlated with clinically important prostate cancer. We review current and past reports on the prostate kallikreins PSA and hK2 in relation to pathology and epidemiology. [References: 91] Publication Type Journal Article. Research Support, N.I.H., Extramural. Research Support, Non-U.S. Gov't. Review. <2> Unique Identifier 19584734 Status MEDLINE Authors Shirodkar SP. Lokeshwar VB. Authors Full Name Shirodkar, Samir P. Lokeshwar, Vinata B. Institution Departments of Urology, University of Miami Miller School of Medicine, Miami, Florida 33101, USA. Title Potential new urinary markers in the early detection of bladder cancer. [Review] [47 refs] Source Current Opinion in Urology. 19(5):488-93, 2009 Sep. Abstract PURPOSE OF REVIEW: Bladder cancer remains a highly prevalent and lethal malignancy. Early diagnosis and prompt treatment have been shown to improve survival at both initial diagnosis and recurrence. A vast number of tumor markers have been identified and rigorously evaluated in attempts to improve noninvasive diagnostic accuracy of bladder cancer. Hematuria was the first tumor marker in a field that has grown to include soluble markers, cell-surface antigens, cell-cycle-related proteins, and genetic alterations. We aim to provide a critical appraisal of newer markers and the current state of research. RECENT FINDINGS: The number of tumor markers identified has been exponentially increasing. For a variety of reasons, many are unsuitable for clinical practice. More promising recent markers include those discovered in the fields of genomics, proteomics, and epigenetics. Much of the recent work is focused on molecular genetic pathways in bladder cancer. SUMMARY: The field of bladder cancer tumor markers remains a rapidly evolving area in which newer markers are constantly identified, evaluated, and often discarded if they do not add significantly to the urologists' armamentarium. Newer markers rely on genetic rearrangements, molecular changes, and cellcycle-related proteins. Work is currently being done to identify the most promising markers. [References: 47] Publication Type Journal Article. Research Support, N.I.H., Extramural. Review. <3> Unique Identifier 19596933 Status MEDLINE Authors Stephan C. Rittenhouse H. Cammann H. Lein M. Schrader M. Deger S. Miller K. Jung K. Authors Full Name Stephan, Carsten. Rittenhouse, Harry. Cammann, Henning. Lein, Michael. Schrader, Mark. Deger, Serdar. Miller, Kurt. Jung, Klaus. Institution Department of Urology, Charite - Universitatsmedizin Berlin, Germany. carsten.stephan@charite.de Title New markers and multivariate models for prostate cancer detection. [Review] [129 refs] Source Anticancer Research. 29(7):2589-600, 2009 Jul. Abstract Specificity of PSA has been enhanced by using molecular forms of PSA and free PSA (fPSA) such as percent free PSA (% fPSA), proPSA, intact PSA or BPHA and/or new serum markers. Most of these promising new serum markers like EPCA2 or ANXA3 still lack confirmation of outstanding initial results or show only marginal enhanced specificity at high sensitivity levels. PCA3, TMPRSS2-ERG, and other analytes in urine collected after digital rectal examination with application of mild digital pressure have potential to preferentially detect aggressive PCa and to decrease the rate of unnecessary repeat biopsies. The combination of these new urinary markers with new and established serum markers seems to be most promising to further increase specificity of tPSA. Multivariate models e.g. artificial neural networks (ANN) or logistic regression (LR)-based nomograms have been recently developed by incorporating these new markers in several studies. There is generally an advantage to including new markers and clinical data as additional parameters to PSA and % fPSA within ANN and LR models. The results and unexpected pitfalls of these studies are shown. [References: 129] Publication Type Journal Article. Research Support, Non-U.S. Gov't. Review. <4> Unique Identifier 19544547 Status MEDLINE Authors Lopergolo A. Zaffaroni N. Authors Full Name Lopergolo, Alessia. Zaffaroni, Nadia. Institution Department of Experimental Oncology, National Cancer Institute, Milan, Italy. Title Biomolecular markers of outcome prediction in prostate cancer. [Review] [48 refs] Source Cancer. 115(13 Suppl):3058-67, 2009 Jul 1. Abstract Prostate cancer has a variable clinical outcome and, therefore, there is a clear need for novel molecular markers that are specifically associated with biologically aggressive disease to improve staging and prognostication and also to provide mechanistic information to facilitate treatment selection. Different candidate biomarkers have been identified that are linked to patient prognosis and/or response to specific treatments. Such molecules are involved in diverse cellular processes (including cell cycle regulation, cell death and apoptosis, signal transduction, cell adhesion, and angiogenesis) within which aberrant activity of several regulatory pathways has been seen in prostate cancer. Although the number of molecular markers continues to grow, mainly because of the advent of high-throughput methods, more work needs to be done to develop uniform standards for their characterization to enable comparison of markers across studies. Moreover, a rate-limiting step in the development of molecular markers is large-scale clinical assessment and their evaluation in the context of prediction model improvement. In fact, thus far, only a few studies have tested and demonstrated whether the addition of new biological markers improves the accuracy of standard clinical models (nomograms) in predicting biochemical progression in patients with clinically localized prostate cancer who underwent radical prostatectomy. Cancer 2009;115(13 suppl):3058-67. (c) 2009 American Cancer Society. [References: 48] Publication Type Journal Article. Research Support, Non-U.S. Gov't. Review. <5> Unique Identifier 19550368 Status MEDLINE Authors Coleman JF. Hansel DE. Authors Full Name Coleman, Joshua F. Hansel, Donna E. Institution Department of Anatomic Pathology, Glickman Urological and Kidney Institute, Taussig Cancer Institute and Genomic Medicine Institute, The Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA. Title Utility of diagnostic and prognostic markers in urothelial carcinoma of the bladder. [Review] [111 refs] Source Advances in Anatomic Pathology. 16(2):67-78, 2009 Mar. Abstract Urothelial carcinoma (UCC) of the bladder demonstrates diverse morphologic features, often leading to diagnostic challenges in the discrimination between UCC and benign mimickers of neoplasia, and between primary UCC and secondary neoplasms involving the bladder. In situ lesions also provide diagnostic difficulty in some instances, most prominently in the distinction between normal, reactive urothelium and flat urothelial carcinoma in situ. The use of ancillary techniques, including panels of immunohistochemical markers, in distinguishing these entities has aided not only in the diagnosis of UCC, but has also provided insight into the molecular pathogenesis and prognostic value of numerous molecular pathways in UCC. This review focuses on some of the more commonly encountered biomarkers in UCC and their role in addressing key diagnostic and prognostic issues in this disease process. [References: 111] Publication Type Journal Article. Review. <6> Unique Identifier 19414121 Status MEDLINE Authors Lin DW. Authors Full Name Lin, Daniel W. Institution Department of Urology, University of Washington, Seattle, WA 98195, USA. dlin@u.washington.edu Title Beyond PSA: utility of novel tumor markers in the setting of elevated PSA. [Review] [74 refs] Source Urologic Oncology. 27(3):315-21, 2009 May-Jun. Abstract The introduction of prostate-specific antigen (PSA) for prostate cancer screening and detection has been used for over 20 years and has dramatically changed the face of prostate cancer. Although it is a highly sensitive serum test, its routine use has been the subject of continued controversy owing to its limited specificity. Due to this lack of specificity, many have proposed modifications of PSA in an attempt to bolster the performance of this analyte. The human genome project and high throughput gene expression profiling has recently yielded several promising molecular biomarkers for prostate cancer detection beyond PSA or PSA modifications. This review will first highlight several characteristics of an ideal biomarker, then focus on select emerging biomarkers for the detection of prostate cancer. [References: 74] Publication Type Journal Article. Review. <7> Unique Identifier 19371474 Status MEDLINE Authors Risk MC. Lin DW. Authors Full Name Risk, Michael C. Lin, Daniel W. Institution Department of Urology, University of Washington Medical Center, Seattle, WA 98195, USA. Title New and novel markers for prostate cancer detection. [Review] [66 refs] Source Current Urology Reports. 10(3):179-86, 2009 May. Abstract The detection and treatment of prostate cancer was dramatically altered with the advent of the prostate-specific antigen (PSA), and its usefulness particularly in following patients after radical prostatectomy is unquestioned. The ability of PSA to predict prostate cancer, and in particular clinically relevant prostate cancer, has come into doubt in recent years and has led to the search for better diagnostic markers for prostate cancer. Both serum and urine biomarkers are in various stages of development, and many of these have been discovered through progress in genomic and proteomic analysis. Some of these perform better in limited study than our current standards of diagnosis (ie, PSA and digital rectal examinations), and some have suggested the capacity to predict stage and likelihood of recurrence. Further study is needed to validate many of these markers, and the future of prostate cancer detection will likely lie in multiplex assays that test a number of markers concomitantly to assess prostate cancer risk. [References: 66] Publication Type Journal Article. Review. <8> Unique Identifier 19213567 Status MEDLINE Authors Schroder FH. Authors Full Name Schroder, Fritz H. Institution Erasmus MC, University Medical Center, Rotterdam, The Netherlands. m.h.vanderlinde@erasmusmc.nl Title Review of diagnostic markers for prostate cancer. [Review] [32 refs] Source Recent Results in Cancer Research. 181:173-82, 2009. Abstract This review concentrates mainly on currently available markers for prostate cancer and cannot cover the multiple marker substances which are now in experimental and clinical development. Prostate-specific antigen (PSA) is still the main diagnostic tool despite its serious limitations, which will be addressed. Studies of new diagnostic markers and also most studies of PSA are subject to attribution or assignment bias, which limits the accuracy of the resulting information. Usually a more or less arbitrarily chosen cut-off value is used as a "gold standard" to determine the indication for the decisive test, a prostatic biopsy, and the assumption is made that no cancers are present below that cut-off value. This assumption has been proved wrong by findings in the control arm of the Prostate Cancer Prevention Trial (PCPT), where more than 5,000 men were biopsied independent of their PSA status. As an example: a PSA cut-off value of4.0 ng/ml, a commonly used biopsy indicator, missed about 75% of all biopsy-detectable cancers. On the other hand, sextant biopsies in all men led to a detection rate of 21.9%, evidence of the diagnosis of many cases in men who otherwise would never have had any clinical signs of prostate cancer (overdiagnosis). The only way out of this dilemma is a better understanding of the natural history of those cases with low PSA values that would not be considered suspicious with the use of currently available risk indicator nomograms. The European Randomised Study of Screening for Prostate Cancer (ERSPC) offers such an opportunity. Results are summarised in this chapter. Evidence is provided that men diagnosed in the low PSA ranges (< 3.0 ng/ml) usually present with more favourable cancers which, when identified, are often eligible for active surveillance after application of the appropriate nomogram. In addition, the data in the setting of the ERSPC study show that biopsy in such men can safely be delayed until PSA rises to above a cut-off value of 3.0 ng/ml. The limitations of PSA discussed herein clearly point to the need to find better diagnostic and prognostic markers for prostate cancer. [References: 32] Publication Type Journal Article. Review. <9> Unique Identifier 18227856 Status MEDLINE Authors Ramirez ML. Nelson EC. Evans CP. Authors Full Name Ramirez, M L. Nelson, E C. Evans, C P. Institution Department of Urology and Cancer Center, Davis Medical Center, University of California at Davis, Sacramento, CA 95817, USA. Title Beyond prostate-specific antigen: alternate serum markers. [Review] [155 refs] Source Prostate Cancer & Prostatic Diseases. 11(3):216-29, 2008. Abstract There is a need to improve existing methods for early diagnosis of prostate cancer (CaP) and to identify men at risk for developing aggressive disease. In an effort to replace and/or supplement prostate-specific antigen many serum analytes have been examined, but with little supportive data for clinical use. Recently, technological advances in molecular assays have improved investigational outcomes and have led to the discovery of a number of prospective markers with high specificity. Further promise for providing more accurate CaP diagnosis and prognosis lies in proteomic array profiling and DNA methylation assays. This review illustrates the current benefits and limitations of potentially useful CaP serum markers that have considerable existing data and touches upon other future markers as well as the field of proteomics. [References: 155] Publication Type Journal Article. Review. <10> Unique Identifier 18242381 Status MEDLINE Authors Hong YM. Loughlin KR. Authors Full Name Hong, Y Mark. Loughlin, Kevin R. Institution Division of Urology, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts 02114, USA. markhong@stanfordalumni.org Title Economic impact of tumor markers in bladder cancer surveillance. [Review] [30 refs] Source Urology. 71(1):131-5, 2008 Jan. Abstract OBJECTIVES: Bladder cancer invokes the highest cost per patient from diagnosis to death and is the fifth most expensive cancer to treat overall, exceeding $3.4 billion annually. Current surveillance regimens require intense follow-up contributing to high cost and emotional burden. Bladder tumor markers hold the promise to reduce these costs, yet have not been widely adopted in oncological practice. We assessed the cost-effectiveness of bladder tumor markers in surveillance routines. METHODS: A MEDLINE search of all available literature concerning bladder tumor markers and cost-effectiveness was performed. We reviewed retrospective and prospective studies, reviews, opinion papers, decision analyses, and cost-effectiveness analyses. RESULTS: Bladder tumor markers exist in various stages of development and efficacy. Sensitivity and specificity values have been reported across a wide range, with tumor markers generally possessing a higher sensitivity and lower specificity than urine cytology. Several costeffectiveness analyses have shown tumor markers significantly lower the cost of bladder cancer surveillance when using a modified regimen that lengthens intervals between cystoscopies. However, many of the studies rely on overconfident sensitivity and specificity estimates and do not incorporate data specific to recurrent bladder cancer. No comprehensive study incorporating utility analysis has been performed. CONCLUSIONS: Bladder tumor markers cannot definitively replace cystoscopy in surveillance regimens given the current evidence. Recent reports suggest potential for tumor markers to control the financial and emotional cost of bladder cancer care and improve quality of life. Until prospective analyses incorporating quality of life outcomes are performed, wider adoption of bladder tumor markers will be hampered. [References: 30] Publication Type Journal Article. Review. <11> Unique Identifier 17762621 Status MEDLINE Authors Ljungberg B. Authors Full Name Ljungberg, Borje. Institution Department of Surgical and Perioperative Sciences, Urology and Andrology, Umea University, Umea, Sweden. borje.ljungberg@urologi.umu.se Title Prognostic markers in renal cell carcinoma. [Review] [52 refs] Source Current Opinion in Urology. 17(5):303-8, 2007 Sep. Abstract PURPOSE OF REVIEW: This article reviews recent reports on prognostic markers in renal cell carcinoma. RECENT FINDINGS: Inclusion in studies of larger cohorts of patients has yielded enhanced prognostic information from integrated pathological markers; the findings suggest that adjustment to the TNM (tumour-node-metastasis) system is warranted. A number of patient-related factors remain important prognostically, including performance status, Creactive protein and thrombocytosis, but also immunological factors (e.g. expression of B7-H1 by renal cell carcinomas is associated with progression). Additional prognostic information may be derived from a range of molecular markers. Findings of gene array and methylation studies may yield independent prognostic information. Enhanced knowledge of signalling pathways has facilitated better understanding of underlying biology and prediction of response to treatment. Other genes involved in regulating hypoxia-inducible factor [e.g. genes encoding carbonic anhydrase-IX and PTEN (phosphatase and tensin homolog)] were reported to be prognostically important in renal cell carcinoma. Other markers independently predicted survival (e.g. thymidine-phosphorylase and survivin). SUMMARY: The potential of molecular markers suggested by clinical research is encouraging. Knowledge of various pathways will facilitate creation of systems of biomarkers that are predictive of individual response to therapy. Useful biomarkers may have potential as therapeutic targets. [References: 52] Publication Type Journal Article. Review. <12> Unique Identifier 17520286 Status MEDLINE Authors Mol AJ. Geldof AA. Meijer GA. van der Poel HG. van Moorselaar RJ. Authors Full Name Mol, A J M. Geldof, A A. Meijer, G A. van der Poel, H G. van Moorselaar, R J A. Institution Department of Urology, VU University Medical Center, PO Box 7057, 1007, MB, Amsterdam, The Netherlands. A.mol@VUMC.nl Title New experimental markers for early detection of high-risk prostate cancer: role of cell-cell adhesion and cell migration. [Review] [32 refs] Source Journal of Cancer Research & Clinical Oncology. 133(10):687-95, 2007 Oct. Abstract Today's treatment and diagnosis of prostate cancer still exhibit major limitations. The search for new and additional prognostic markers is therefore still an actual field of interest. Potential markers involved in numerous biological processes in the tumor cell have been investigated intensively. For therapeutic interventions it is important to distinguish between harmless and aggressive disease in an early stage. Therefore the subject of this review is limited to markers associated with those functional processes, which discriminate early stage aggressive, metastatic cancer from harmless disease. Important processes in this respect are: altered cell adhesion and cellular migration. E-cadherin, N-cadherin, beta-catenin, integrins, focal adhesion kinase, connexins and matrix metalloproteinases all appear promising biological markers associated with the early stage metastatic process in prostate cancer. Here we discuss their potential to become valid biological markers based on literature data. Thus far, none of these markers proved to be a valid individual marker by itself due to prostate cancer heterogeneity and transient expression. Analyzing a combination of the potential markers discussed in this review is expected to be a better approach toward discriminating high- from low-risk tumors in an early stage of prostate cancer. [References: 32] Publication Type Journal Article. Review. <13> Unique Identifier 17628306 Status MEDLINE Authors Messing E. Authors Full Name Messing, Edward. Institution Department of Urology, University of Rochester, Rochester, NY 14642, USA. Edward_Messing@urmc.rochester.edu Title Markers of detection. [Review] [22 refs] Source Urologic Oncology. 25(4):344-7, 2007 Jul-Aug. Abstract Three applications of markers of detection: screening, replacing surveillance cystoscopies, and guiding evaluation of asymptomatic hematuria, are discussed. In one study, repetitive hematuria screening in men age >or=50 effectively shifted the stage of high grade cancers at diagnosis from muscle invasive to earlier ones, reducing bladder cancer, and all cause mortality. This technique is sensitive, but is not terribly specific. Testing other markers alone or in combination with each other and/or hemoglobin screening in similar or higher risk populations is now beginning. Currently, no commercially available marker is sufficiently sensitive to replace all surveillance cystoscopies for low risk bladder cancer, although some cystoscopic examinations can probably be replaced by markers. Available markers are too insensitive for small, high grade cancers to replace any surveillance cystoscopies in this group. No single marker or combination of markers can safely replace cystoscopy in the work-up of patients with microhematuria who are at high risk for harboring bladder cancer. However, markers may be useful for directing which patients age <or=40 with asymptomatic microhematuria without histories of smoking, particularly women, require cystoscopic evaluation. [References: 22] Publication Type Journal Article. Review. <14> Unique Identifier 17303324 Status MEDLINE Authors Reynolds MA. Kastury K. Groskopf J. Schalken JA. Rittenhouse H. Authors Full Name Reynolds, Mark A. Kastury, Kumar. Groskopf, Jack. Schalken, Jack A. Rittenhouse, Harry. Institution Gen-Probe Incorporated, 10210 Genetic Center Drive, San Diego, CA 92121, USA. markr@genprobe.com Title Molecular markers for prostate cancer. [Review] [55 refs] Source Cancer Letters. 249(1):5-13, 2007 Apr 28. Abstract Serum PSA testing has been used for over 20 years as an aid in the diagnosis and management of prostate cancer. Although highly sensitive, it suffers from a lack of specificity, showing elevated serum levels in a variety of other conditions including prostatitis, benign prostate hyperplasia, and non-cancerous neoplasia. During this period, numerous serum protein analytes have been investigated as alternative and/or supplemental tests for PSA, however in general these analytes have likewise suffered from a lack of specificity, often showing serum elevations in other clinical presentations. More recently, molecular assays targeting prostate disease at the DNA or RNA level have been investigated for potential diagnostic and prognostic utility. With the aid of modern genomics technologies, a variety of molecular biomarkers have been discovered that show potential for specific correlation with prostate cancer. Much of this discovery has been retrospective, using microdissected tissue from prostatectomy. The goal of current research is to apply genomic assays to noninvasive specimens such as blood and urine. Progress in this area is the subject of this review. [References: 55] Publication Type Journal Article. Review. <15> Unique Identifier 17092277 Status MEDLINE Authors Downes MR. Byrne JC. Pennington SR. Dunn MJ. Fitzpatrick JM. Watson RW. Authors Full Name Downes, Michelle R. Byrne, Jennifer C. Pennington, Stephen R. Dunn, Michael J. Fitzpatrick, John M. Watson, R William G. Institution Proteome Research Centre, UCD Conway Institute of Biomolecular and Biomedical Research, Mater Misericordiae University Hospital, University College Dublin, Ireland. michelle.downes@ucd.ie Title Urinary markers for prostate cancer. [Review] [53 refs] Source BJU International. 99(2):263-8, 2007 Feb. Abstract Prostate cancer is the commonest solid-organ malignancy to affect men in Europe and the USA; it is estimated that one in six men will develop this cancer in their lifetime. Current screening relies on a digital rectal examination with a serum prostate-specific antigen test. Novel urinary diagnostic tests are potentially interesting screening tools for this disease. We examined published reports assessing the use of urinary markers for the diagnosis of prostate cancer. Using a PubMed-based search we identified studies of urinary markers for prostate cancer published from 1985 to February 2006 using the search terms 'urine', 'marker' and 'prostate cancer'. Studies to date have used small cohorts and relied on prostatic biopsies to provide histology. The sensitivity and specificity of markers are wide ranging but with only a few studies published on each putative marker it is difficult to assess their potential impact. Using urinary biomarkers for prostate cancer is a relatively novel diagnostic approach; they are appealing as a screening test because they are not invasive. Further work is needed to identify and validate 'signature markers' indicative of prostatic malignancy. The newer proteomic platforms are promising biomarker discovery tools that might uncover the next generation of urinary biomarkers. [References: 53] Publication Type Journal Article. Research Support, Non-U.S. Gov't. Review. <16> Unique Identifier 16945550 Status MEDLINE Authors van der Poel HG. Authors Full Name van der Poel, H G. Institution Department of Urology, Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX Amsterdam, The Netherlands. h.vd.poel@nki.nl Title Molecular markers in the diagnosis of prostate cancer. [Review] [522 refs] Source Critical Reviews in Oncology-Hematology. 61(2):104-39, 2007 Feb. Abstract The genetic alterations leading to prostate cancer are gradually being discovered. A wide variety of genes have been associated with prostate cancer development as well as tumor progression. Knowledge of gene polymorphisms associated with disease aid in the understanding of important pathways involved in this process and may result in the near future in clinical applications. Urinary molecular markers will soon be available to aid in the decision of repeat prostate biopsies. Recent findings suggest the importance of androgen signaling in disease development and progression. The further understanding of interaction of inflammation, diet, and genetic predisposition will improve risk stratification in the near future. [References: 522] Publication Type Journal Article. Review. <17> Unique Identifier 17158538 Status MEDLINE Authors Black PC. Brown GA. Dinney CP. Authors Full Name Black, Peter C. Brown, Gordon A. Dinney, Colin P. Institution Department of Urology, the University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA. Title Molecular markers of urothelial cancer and their use in the monitoring of superficial urothelial cancer. [Review] [92 refs] Source Journal of Clinical Oncology. 24(35):5528-35, 2006 Dec 10. Abstract Multiple molecular markers have been described for use in bladder cancer patients. Some of these have been studied more extensively than others, and it is difficult for the clinician to maintain a perspective over the myriad findings that have been made. We have reviewed a selection of markers used for surveillance with an emphasis on clinical utility. The best studied markers and those with the most promising preliminary results were selected. Only studies that included surveillance for recurrence in patients with a history of bladder cancer were considered. Each marker is briefly described and its performance in monitoring bladder cancer patients is summarized. Several promising markers are available, although only four have obtained US Food and Drug Administration approval. The clinical applications that have been studied include replacement or reduction in the number of cystoscopies performed in the surveillance of bladder cancer patients, substitution for or complementary use with urinary cytology in the same setting, predicting disease recurrence and progression, and predicting and monitoring treatment response. None of the markers have been proved sensitive and specific enough to replace cystoscopy. Others, such as nuclear matrix protein 22 (NMP22) and UroVysion, appear to have some utility when used to complement or replace cytology. The other applications have not been adequately studied for any given marker. While multiple molecular markers exist for bladder cancer, their full clinical utility will not be realized until more multicenter prospective trials are conducted to verify their efficacy and safety in the monitoring of patients with superficial bladder cancer. [References: 92] Publication Type Journal Article. Research Support, N.I.H., Extramural. Research Support, Non-U.S. Gov't. Review. <18> Unique Identifier 17138135 Status MEDLINE Authors Bradford TJ. Tomlins SA. Wang X. Chinnaiyan AM. Authors Full Name Bradford, Timothy J. Tomlins, Scott A. Wang, Xiaoju. Chinnaiyan, Arul M. Institution Department of Urology, University of Michigan Medical School, Ann Arbor, MI 48109, USA. Title Molecular markers of prostate cancer. [Review] [263 refs] Source Urologic Oncology. 24(6):538-51, 2006 Nov-Dec. Abstract Although prostate-specific antigen (PSA) has evolved as a very useful tool for detection of prostate cancer, there remains an urgent need for more accurate biomarkers to diagnose prostate cancer and predict cancer-related outcomes. Recent advances in the study of proteomics and high throughput techniques have led to the discovery of many potential biomarkers for prostate cancer. This article briefly reviews the current status of PSA testing and discusses several candidate protein biomarkers for prostate cancer, as well as highlighting some recent proteomic discoveries with the potential to supplement or even replace PSA for the diagnosis and prognosis of prostate cancer. [References: 263] Publication Type Journal Article. Research Support, N.I.H., Extramural. Review. <19> Unique Identifier 17138134 Status MEDLINE Authors Lokeshwar VB. Selzer MG. Authors Full Name Lokeshwar, Vinata B. Selzer, Marie G. Institution Department of Urology, University of Miami Miller School of Medicine, Miami, FL 33101, USA. vlokeshw@med.miami.edu Title Urinary bladder tumor markers. [Review] [85 refs] Source Urologic Oncology. 24(6):528-37, 2006 Nov-Dec. Abstract Bladder cancer is amenable to biomarker development because many tumor-associated molecules are secreted in urine. Tumor cells are shed in urine, and, therefore, tests that detect tumor cell-surface markers have also been developed to diagnose bladder cancer and monitor its recurrence. Several bladder tumor markers show higher sensitivity than cytology, but most have lower specificity. In addition to markers that use conventional technologies such as enzymelinked immunosorbent assay, point-of-care devices, reverse transcriptase polymerase chain reaction, fluorescent in situ hybridization, and immunocytochemistry, proteomic and gene profiling approaches are being used to find new biomarkers to assist in the molecular profiling of bladder cancer. This review describes both new and well-studied bladder tumor markers. [References: 85] Publication Type Journal Article. Research Support, N.I.H., Extramural. Review. <20> Unique Identifier 17138133 Status MEDLINE Authors Veltri RW. Makarov DV. Authors Full Name Veltri, Robert W. Makarov, Danil V. Institution Department of Urology, The Brady Urologic Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287-2101, USA. rveltri1@jhmi.edu Title Nucleic acid-based marker approaches to urologic cancers. [Review] [152 refs] Source Urologic Oncology. 24(6):510-27, 2006 Nov-Dec. Abstract There are numerous molecular modifications known to occur in cancer. New nucleic acid-based biomarkers provide a unique approach to patient management in urologic oncology. Malignant transformation of a normal cell requires a series of epigenetic and genetic changes or "hits." Epigenetics produced by deoxyribonucleic acid methylation, adding a methyl group to the fifth position of cytosine within CpG dinucleotides, are important players in deoxyribonucleic acid repair, genome instability, and regulation of chromatin structure. Genetic alterations in cancer can include mutations, chromosome deletions, insertions, amplifications, and translocations. In addition, the modifications of telomeres are critical to the maintenance of chromatin structure, transcription, and cell function in cancer. We review only nucleic acid-based molecular biomarkers in urologic oncology that can assist the clinician in establishing the diagnosis of disease, or that can predict the behavior of the disease or the patient's survival. [References: 152] Publication Type Journal Article. Review. <21> Unique Identifier 16905981 Status MEDLINE Authors Nielsen ME. Schaeffer EM. Veltri RW. Schoenberg MP. Getzenberg RH. Authors Full Name Nielsen, Matthew E. Schaeffer, Edward M. Veltri, Robert W. Schoenberg, Mark P. Getzenberg, Robert H. Institution Department of Urology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287-2101, USA. nielsen@jhmi.edu Title Urinary markers in the detection of bladder cancer: what's new?. [Review] [25 refs] Source Current Opinion in Urology. 16(5):350-5, 2006 Sep. Abstract PURPOSE OF REVIEW: Bladder cancer is one of the most common genitourinary malignancies and is a potentially life-threatening diagnosis. For many patients, however, the diagnosis of bladder cancer entails a lifetime of vigilant, costly, and invasive surveillance for recurrent and/or progressive disease. In the context of relative limitations of the current standard of cystoscopy and cytology, there has been burgeoning activity in the development of novel molecular urine-based markers for bladder cancer detection. RECENT FINDINGS: A large number of candidate bladder cancer biomarkers have emerged as our understanding of the molecular pathogenesis of the disease has evolved. Many of these are in the relatively earlier phases of development but several have received the approval of the United States Food and Drug Administration for clinical use and are already being applied to patients in clinical practice. SUMMARY: Urine-based markers for bladder cancer detection represent an area of substantial innovation and discovery with potentially profound scientific, clinical, and economic implications. As more of these tests become standardized and undergo evaluation in large multicenter trials, it is conceivable that a novel marker or panel of markers will emerge as a major enhancement to the current standard of care. [References: 25] Publication Type Journal Article. Review. <22> Unique Identifier 16818187 Status MEDLINE Authors Konety BR. Authors Full Name Konety, Badrinath R. Institution Department of Urology, University of Iowa, Iowa City, IA 52242, USA. badrinathkonety@uiowa.edu Title Molecular markers in bladder cancer: a critical appraisal. [Review] [179 refs] Source Urologic Oncology. 24(4):326-37, 2006 Jul-Aug. 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. [References: 179] Publication Type Journal Article. Review. <23> Unique Identifier 16730974 Status MEDLINE Authors Collette L. Burzykowski T. Schroder FH. Authors Full Name Collette, Laurence. Burzykowski, Tomasz. Schroder, Fritz H. Institution European Organisation for Research and Treatment of Cancer (EORTC) Data Center, Avenue E. Mounier 83/11, 1200 Brusells, Biostatistics Department, Brussels, Belgium. laurence.collette@eortc.be Title Prostate-specific antigen (PSA) alone is not an appropriate surrogate marker of long-term therapeutic benefit in prostate cancer trials. [Review] [34 refs] Source European Journal of Cancer. 42(10):1344-50, 2006 Jul. Abstract The prostate-specific antigen (PSA) is the most studied marker of prostate cancer. It is used for screening and as indicator of disease evolution for individual patients. PSA being a prognostic factor is however not sufficient to justify using PSA-derived endpoints as surrogate for definitive survival endpoint in phase III trials. First, we clarify the terminology and requirements for a marker to be a valid surrogate endpoint. We then review the published literature pertaining to the validation of PSA endpoints as surrogate in all disease stages. We discuss the limitations of these studies and conclude that so far, PSA is not a validated surrogate endpoint in any of the disease settings and treatment conditions considered. We give some recommendations for the planning of trials that would use PSA endpoints (in hormone refractory disease) and for the early stop of (endocrine treatment) trials on the basis of intermediate results based on PSA. [References: 34] Publication Type Journal Article. Review.