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Urothelial cell carcinoma

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https://www.readbyqxmd.com/read/28533583/high-grade-urothelial-carcinoma-of-bladder-transforming-to-micropapillary-variant-on-follow-up
#1
Nitu Kumari, Anupama Jha, Pawan Vasudeva, Usha Agrawal
Micropapillary variant of urothelial carcinoma (UC) of the bladder is an aggressive tumour, comprising 0.6-6% of all UC. It generally presents with high-grade and stage, and has been reported as having a worse prognosis when compared to traditional UC. We report the case of a 58-year-old man who presented with macroscopic haematuria. The patient was diagnosed with high-grade urothelial carcinoma and returned with recurrence after 16 months. Histopathology after transurethral biopsy revealed a non-muscle invasive high-grade bladder tumour at first presentation, whereas tumour recurrence was reported after 1...
May 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28529600/prospective-evaluation-of-fluorescence-in-situ-hybridization-for-diagnosing-urothelial-carcinoma
#2
Tianhai Lin, Zhenhua Liu, Liangren Liu, Lu Yang, Ping Han, Peng Zhang, Qiang Wei
Urothelial carcinoma (UC) is the most common type of cancer of the bladder and upper urinary tract, and is characterized by a high risk of recurrence and progression. Urine fluorescence in situ hybridization (FISH) is a technique that detects genetic aberrations in exfoliated cells in the urine, with specific probes for chromosomes 3, 7 and 17 and the p16 gene. To evaluate the diagnostic value of FISH in UC, 119 patients from November 2010 to June 2012 with suspected UC were recruited into a prospective, cross-sectional study and were followed up for 12-30 months...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28525906/copy-number-variations-of-circulating-cell-free-dna-in-urothelial-carcinoma-of-the-bladder-patients-treated-with-radical-cystectomy-a-prospective-study
#3
Armin Soave, Felix K-H Chun, Timo Hillebrand, Michael Rink, Lars Weisbach, Bettina Steinbach, Margit Fisch, Klaus Pantel, Heidi Schwarzenbach
The aim of the present study was to establish a rapid profiling method using multiplex ligation-dependent probe amplification (MLPA) and characterize copy number variations (CNV) in circulating, cell-free DNA (cfDNA) in 85 urothelial carcinoma of the bladder (UCB) patients treated with radical cystectomy (RC). MLPA was tested for the use of cfDNA extracted from serum and plasma by various commercial extraction kits. Eighteen probes served as reference to control denaturation, ligation and amplification efficiency...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28525382/sulfatase-1-overexpression-indicates-poor-prognosis-in-urothelial-carcinoma-of-the-urinary-bladder-and-upper-tract
#4
Hsiang-Ying Lee, Bi-Wen Yeh, Ti-Chun Chan, Kei-Fu Yang, Wei-Ming Li, Chun-Nung Huang, Hung-Lung Ke, Ching-Chia Li, Hsin-Chih Yeh, Peir-In Liang, Yow-Ling Shiue, Wen-Jeng Wu, Chien-Feng Li
Urothelial carcinoma (UC), arising from the urothelium of the urinary tract, can occur in the upper (UTUC) and the urinary bladder (UBUC). A representative molecular aberration for UC characteristics and prognosis remains unclear. Data mining of Gene Expression Omnibus focusing on UBUC, we identified sulfatase-1 (SULF1) upregulation is associated with UC progression. SULF1 controls the sulfation status of heparan sulfate proteoglycans and plays a role in tumor growth and metastasis, while its role is unexplored in UC...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28524154/an-analysis-of-the-polymorphisms-of-the-glut1-gene-in-urothelial-cell-carcinomas-of-the-bladder-and-its-correlation-with-p53-ki67-and-glut1-expressions
#5
C Xu, X Yang, Y Wang, N Ding, R Han, Y Sun, Y Wang
Frequencies of two glucose transporter 1 (GLUT1) single-nucleotide polymorphisms (SNPs) (XbaI G>T and HaeIII T>C) were studied with urothelial cell carcinomas of the bladder (UCC) and 204 normal persons. And the expression of the p53, Ki67 and GLUT1 was assayed by immunohistochemistry. The frequency of the TT genotype and T allele of the XbaI G>T SNP was decreased in the patients with UCC. The frequency of the CC genotype and C allele of the HaeIII T>C SNP was decreased in the patients with UCC...
May 19, 2017: Cancer Gene Therapy
https://www.readbyqxmd.com/read/28524003/targeting-the-programmed-cell-death-1-pathway-in-genitourinary-tumors-current-progress-and-future-perspectives
#6
Rodolfo Montironi, Liang Cheng, Holger Moch, Antonio Lopez-Beltran, Marina Scarpelli, Francesco Massari, Michelangelo Fiorentino, Chiara Ciccarese, Michael Koch, Hristos Z Kaimakliotis, Lisha Wang, Roberto Pili, Steven A Mann
Immune checkpoint inhibitors have revolutionized the treatment many malignancies with over a dozen new United States Food and Drug Administration (FDA) approvals in the past six years. Due to the combination of potent treatment success and potentially deadly adverse effects from immune checkpoint inhibitors, gathering prognostic and predictive information about FDA-indicated tumors is prudent. PD-L1 expression is a poor prognostic factor and predictive of better responses from both PD-1 and PD-L1 inhibitors in a variety of tumor types including RCC and urothelial carcinoma...
May 18, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28523296/a-systematic-review-of-the-possible-carcinogenic-role-of-the-aristolochic-acid
#7
Tivadar Bara, Simona Gurzu, Haruhiko Sugimura, Tivadar Bara, Marius Alexandru Beleaua, Ioan Jung
Aristolochic acid (AA) is a bioactive component of Chinese herbs, dietary supplements, slimming pills and contaminated flour, which is known to induce chronic tubulointerstitial disease. AA is also shown to be involved in the genesis of the upper urinary tract urothelial carcinoma (UTUC) and some other cancers, but its tumorigenic role is far to be understood. We performed a systematic literature review regarding the involvement of AA in malignant processes and molecular pathways of carcinogenesis. Twenty representative papers were selected for this review...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28507621/expression-of-fgfr3-protein-and-gene-amplification-in-urinary-bladder-lesions-in-relation-to-schistosomiasis
#8
Olfat Hammam, Tarek Aboushousha, Ali El-Hindawi, Hosni Khairy, Heba Khalil, Amira Kamel, Maha Akl, Ahmed Abdel-Hady, Mona Magdy, Mohamed Badawy, Amr El Kholy, Khalid Al Osili, Nora Kamel, Shady Anis, Tarek El Leithy
BACKGROUND: Bladder cancer represents the fifth most common malignancy worldwide and a major cause of cancer-related morbidity and death. Incidence and mortality rates have remained relatively constant over the past four decades. Urothelial bladder cancers have identified multiple risk factors. AIM: We aimed at evaluating the expression of the FGFR3 protein and gene amplification in the urothelial cells of neoplastic and non-neoplastic urothelial lesions of the urinary bladder, and correlation with tumour grade, stage and associated bilharziasis...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28506596/advances-in-medical-imaging-for-the-diagnosis-and-management-of-common-genitourinary-cancers
#9
REVIEW
Mohammad H Bagheri, Mark A Ahlman, Liza Lindenberg, Baris Turkbey, Jeffrey Lin, Ali Cahid Civelek, Ashkan A Malayeri, Piyush K Agarwal, Peter L Choyke, Les R Folio, Andrea B Apolo
Medical imaging of the 3 most common genitourinary (GU) cancers-prostate adenocarcinoma, renal cell carcinoma, and urothelial carcinoma of the bladder-has evolved significantly during the last decades. The most commonly used imaging modalities for the diagnosis, staging, and follow-up of GU cancers are computed tomography, magnetic resonance imaging (MRI), and positron emission tomography (PET). Multiplanar multidetector computed tomography and multiparametric MRI with diffusion-weighted imaging are the main imaging modalities for renal cell carcinoma and urothelial carcinoma, and although multiparametric MRI is rapidly becoming the main imaging tool in the evaluation of prostate adenocarcinoma, biopsy is still required for diagnosis...
May 12, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28505896/re-advanced-small-cell-carcinoma-of-the-bladder-clinical-characteristics-treatment-patterns-and-outcomes-in-960-patients-and-comparison-with-urothelial-carcinoma
#10
https://www.readbyqxmd.com/read/28504717/fibulin-3-promotes-muscle-invasive-bladder-cancer
#11
A L Han, B A Veeneman, L El-Sawy, K C Day, M L Day, S A Tomlins, E T Keller
Urothelial carcinoma is the most common type of bladder cancer and can be categorized as either non-muscle-invasive (Ta-T1) or muscle-invasive (⩾T2). The majority of bladder cancers are non-muscle-invasive at presentation; however, the recurrence rate for these tumors is high and a subset can progress to T2. In this study, we aimed to identify genes differentially expressed between T1 vs T2 bladder cancer to identify key regulators of bladder cancer progression and/or invasion. We performed RNA-Seq on T1 and T2 bladder cancer tissues and used publicly available bladder cancer profiling studies to prioritize differentially expressed genes for validation and functional assessment...
May 15, 2017: Oncogene
https://www.readbyqxmd.com/read/28501331/the-expression-of-keratin-6-is-regulated-by-the-activation-of-the-erk1-2-pathway-in-arsenite-transformed-human-urothelial-cells
#12
Andrea Slusser-Nore, Scott H Garrett, Xu Dong Zhou, Donald A Sens, Mary Ann Sens, Seema Somji
Urothelial cancers have an environmental etiological component, and previous studies from our laboratory have shown that arsenite (As(+3)) can cause the malignant transformation of the immortalized urothelial cells (UROtsa), leading to the expression of keratin 6 (KRT6). The expression of KRT6 in the parent UROtsa cells can be induced by the addition of epidermal growth factor (EGF). Tumors formed by these transformed cells have focal areas of squamous differentiation that express KRT6. The goal of this study was to investigate the mechanism involved in the upregulation of KRT6 in urothelial cancers and to validate that the As(+3)-transformed UROtsa cells are a model of urothelial cancer...
May 10, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28498805/foxm1-predicts-overall-and-disease-specific-survival-in-muscle-invasive-urothelial-carcinoma-and-presents-a-differential-expression-between-bladder-cancer-subtypes
#13
Sebastien Rinaldetti, Ralph Markus Wirtz, Thomas Stefan Worst, Markus Eckstein, Cleo Aaron Weiss, Johannes Breyer, Wolfgang Otto, Christian Bolenz, Arndt Hartmann, Philipp Erben
Forkhead box M1 (FOXM1) is a late cell cycle gene that plays a crucial role in carcinogenesis and chemotherapeutic drug resistance. In this study, the impact of FOXM1 expression on patient outcome was investigated for the first time in formalin fixed and paraffin embedded (FFPE) samples of chemotherapy naïve muscle-invasive bladder cancer (MIBC) patients. Expression analyses were performed on the Mannheim cohort (n=84) and validated on the independent Chungbuk cohort (n=61). In a Cox' proportional hazards model, a distinct FOXM1 expression cut-off dividing both cohorts in a 'high-risk' and 'low-risk' group has been determined...
April 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28495553/the-expanding-repertoire-of-targets-for-immune-checkpoint-inhibition-in-bladder-cancer-what-lies-beneath-the-tip-of-the-iceberg-pd-l1
#14
REVIEW
Alexander Sankin, Deepa Narasimhulu, Peter John, Benjamin Gartrell, Mark Schoenberg, Xingxing Zang
Over the last decade, a new understanding of tumor-immune system interplay has been ushered in, lead in large part by the discovery of immune checkpoints mediated through B7-CD28 family interactions. Therapeutic blockade of the PD-L1 immune checkpoint pathway has already shown great success as a cancer immunotherapy for advanced urothelial carcinoma, leading to durable clinical remissions in an otherwise incurable disease. There are newly described members of the B7-CD28 family including B7-H3, B7x, and HHLA2...
May 8, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28492290/atezolizumab-a-novel-pd-l1-inhibitor-in-cancer-therapy-with-a-focus-in-bladder-and-non-small-cell-lung-cancers
#15
A Krishnamurthy, A Jimeno
In recent years, immunotherapy has come to the forefront as a major development in cancer treatment. Evasion of the immune system by tumor cells has been identified as one of the hallmarks of cancer and multiple therapies have been developed to counter this process. Programmed cell death 1 ligand 1 (PD-L1), a ligand to programmed cell death protein 1 (PD-1), is expressed by many cancer cells and the binding of PD-L1 to PD-1 results in the suppression of T-cell-mediated immune response against cancer cells. Atezolizumab is a monoclonal antibody that binds to PD-L1 and blocks its interaction with PD-1, thereby enhancing T-cell activity against tumor cells...
April 2017: Drugs of Today
https://www.readbyqxmd.com/read/28492153/prognostic-value-of-p53-expression-intensity-in-urothelial-cancers
#16
Samina Qamar, Qazi Adil Inam, Sobia Ashraf, M Safdar Khan, M Abbas Khokhar, Nukhbatullah Awan
OBJECTIVE: To determine association of immunohistochemical expression intensity of p53 with grade and stage of urothelial cancers. STUDY DESIGN: Descriptive cross-sectional analytical study. PLACE AND DURATION OF STUDY: Pathology Department, King Edward Medical University, Lahore, from January to December 2016. METHODOLOGY: Data of transurethral resection/radical cystesctomy urinary bladder biopsies was collected. Clinical, radiological and cystoscopic findings of patients were noted from patients' charts in the Urology Ward...
April 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28488128/ki-67-and-cell-cycle-regulators-p53-p63-and-cyclind1-as-prognostic-markers-for-recurrence-progression-of-bladder-urothelial-carcinoma
#17
Saba El-Gendi, Ghada Abu-Sheasha
Deregulation of the cell cycle regulating genes is common in urothelial bladder carcinoma (UBC). We aimed to examine the prognostic significance of ki-67, p53, p63 and cyclinD1expression in UBC and to identify optimal cut-off points to help identifying patients at high risk of tumor recurrence. We evaluated the immunohistochemical expression of ki-67, p53, p63 and cyclinD1 in 100 UBCs. The conventional and the classification and regression trees-guided (CART-guided) methods were utilized to determine the independent predictors of tumor recurrence...
May 9, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28487862/naturally-occurring-canine-invasive-urinary-bladder-cancer-a-complementary-animal-model-to-improve-the-success-rate-in-human-clinical-trials-of-new-cancer-drugs
#18
REVIEW
Christopher M Fulkerson, Deepika Dhawan, Timothy L Ratliff, Noah M Hahn, Deborah W Knapp
Genomic analyses are defining numerous new targets for cancer therapy. Therapies aimed at specific genetic and epigenetic targets in cancer cells as well as expanded development of immunotherapies are placing increased demands on animal models. Traditional experimental models do not possess the collective features (cancer heterogeneity, molecular complexity, invasion, metastasis, and immune cell response) critical to predict success or failure of emerging therapies in humans. There is growing evidence, however, that dogs with specific forms of naturally occurring cancer can serve as highly relevant animal models to complement traditional models...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28487492/sequencing-of-cancer-cell-subpopulations-identifies-micrometastases-in-a-bladder-cancer-patient
#19
Kris Prado, Kelvin X Zhang, Matteo Pellegrini, Arnold I Chin
PURPOSE: Pathologic staging of bladder cancer patients remains a challenge. Standard-of-care histology exhibits limited sensitivity in detection of micrometastases, which can increase risk of cancer progression and delay potential adjuvant therapies. Here, we sought to develop a proof of concept novel molecular approach to improve detection of cancer micrometastasis. EXPERIMENTAL DESIGN: We combined fluorescence activated cell sorting and next-generation sequencing and performed whole-exome sequencing of total cancer cells and cancer cell subpopulations in multiple tumor specimens and regional lymph nodes in a single patient with muscle-invasive urothelial carcinoma of the bladder following radical cystectomy...
April 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28484843/hoxb13-a-useful-marker-in-pleomorphic-giant-cell-adenocarcinoma-of-the-prostate-a-case-report-and-review-of-the-literature
#20
Laura Larnaudie, Eva Compérat, Pierre Conort, Justine Varinot
We report the case of an 81-year-old patient with a pleomorphic giant cell adenocarcinoma of the prostate. After diagnosis, he rapidly developed bone metastasis and died within 1 year. This variant of acinar adenocarcinoma is extremely rare and prognosis is poor. This entity has been included into the 2016 WHO classification. The principal differential diagnosis is urothelial carcinoma. To assess the prostatic origin, routine immunohistochemistry can be problematic. Loss of epitopes in this poorly differentiated entity can occur, such as loss of expression of PSA and p504s...
May 8, 2017: Virchows Archiv: An International Journal of Pathology
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