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https://www.readbyqxmd.com/read/28088432/detection-of-upper-tract-urothelial-malignancies-by-computed-tomography-urography-in-patients-referred-for-hematuria-at-a-large-tertiary-referral-center
#1
Clayton W Commander, David C Johnson, Mathew C Raynor, Lauren M Burke, Kathryn E Hacker, Bryan Hoag, Julia R Fielding, Richard C Semelka, Ellie R Lee
OBJECTIVE: To evaluate the age-stratified prevalence of upper tract urothelial malignancies diagnosed on computed tomography urography in a large cohort of patients referred for initial evaluation of hematuria. MATERIALS AND METHODS: A total of 1123 consecutive adults without a history of urothelial cancer underwent initial computed tomography urography for gross hematuria (n = 652), microscopic hematuria (n = 457), or unspecified hematuria (n = 14) at a single institution from October 2006 to October 2012...
January 11, 2017: Urology
https://www.readbyqxmd.com/read/28088268/aberrant-%C3%AE-catenin-expression-in-urothelial-carcinomas-in-blackfoot-disease-endemic-areas
#2
Yi-Ting Chen, Chun-Chieh Wu, Xuan-Ping Liu, Chee-Yin Chai
Arsenic is a well-known toxic element and carcinogenic agent. The aim of this study was to investigate p63, E-cadherin, and β-catenin proteins in urothelial carcinoma (UC) in both arsenic contaminated areas [so-called blackfoot disease (BFD) area] and non-BFD areas. The expressions of p63, E-cadherin, and β-catenin proteins in 20 UC cases of blackfoot disease and 22 UC cases in non-BFD areas were detected using immunohistochemical methods. The results revealed a high p63 expression in 20 (47.6%) UC cases and high E-cadherin expression in six (14...
January 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28088216/immunohistochemical-features-of-giant-cell-ependymoma-of-the-filum-terminale-with-unusual-clinical-and-radiological-presentation
#3
Fernando Candanedo-Gonzalez, Cindy Sharon Ortiz-Arce, Samuel Rosales-Perez, Ana Lilia Remirez-Castellanos, Candelaria Cordova-Uscanga, Armando Gamboa-Dominguez
BACKGROUND: Giant cell ependymoma of the filum terminale is a rare variant, generally manifested as a well-circunscribed intradural mass with an indolent biological behavior. CASE PRESENTATION: We describe the case of a 48-year-old Mexican female who non-relevant past medical history, that developed a GCE of the filum terminale. Magnetic resonance imaging and computed tomography revealed the presence of an intra-axial tumor extending from L3 to L5 with extra-medullary invasion...
January 14, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28087925/host-responses-to-urinary-tract-infections-and-emerging-therapeutics-sensation-and-pain-within-the-urinary-tract
#4
Lori A Birder, David J Klumpp
Urinary tract infection (UTI) pathogenesis is understood increasingly at the level of the uropathogens and the cellular and molecular mediators of host inflammatory responses. However, little is known about the mediators of symptoms during UTI and what distinguishes symptomatic events from asymptomatic bacteriuria. Here, we review bladder physiology and sensory pathways in the context of an emerging literature from murine models dissecting the host and pathogen factors mediating pain responses during UTI. The bladder urothelium is considered a mediator of sensory responses and appears to play a role in UTI pain responses...
October 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087474/foxo1-downregulation-is-associated-with-worse-outcome-in-bladder-cancer-and-adds-significant-prognostic-information-to-p53-overexpression
#5
Josep Lloreta, Alba Font-Tello, Núria Juanpere, Albert Frances, Marta Lorenzo, Lara Nonell, Silvia de Muga, Ivonne Vázquez, Lluís Cecchini, Silvia Hernández-Llodrà
Nuclear FOXOs mediate cell cycle arrest and promote apoptosis. FOXOs and p53 could have similar effects as tumor suppressor genes. In spite of extensive literature, little is known about the role of FOXO1 and its relationship with p53 status in bladder cancer. Expression of FOXO1 and p53 were analyzed by immunohistochemistry in 162 urothelial carcinomas (UC). Decreased FOXO1 expression, p53 overexpression and the combination FOXO1 downregulation/p53 overexpression were strongly associated with high grade (P=...
January 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/28087131/incidence-and-effect-of-variant-histology-on-oncological-outcomes-in-patients-with-bladder-cancer-treated-with-radical-cystectomy
#6
Marco Moschini, Paolo Dell'Oglio, Roberta Luciano', Giorgio Gandaglia, Francesco Soria, Agostino Mattei, Tobias Klatte, Rocco Damiano, Shahrokh F Shariat, Andrea Salonia, Francesco Montorsi, Alberto Briganti, Renzo Colombo, Andrea Gallina
INTRODUCTION: We sought to describe incidence of histological variants after radical cystectomy (RC) due to bladder cancer (BCa). Moreover, we investigated survival outcomes accounting for this parameter. METHODS: We retrospectively evaluated data from 1,067 patients with BCa treated with RC between 1990 and 2013 at a single tertiary care referral center. All specimen were evaluated by dedicated uropathologists. Univariable and multivariable Cox regression analyses tested the effect of different histopathological variant on recurrence, cancer-specific mortality (CSM), and overall mortality (OM) after accounting for all available confounders...
January 10, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28081549/microrna-promoter-methylation-a-new-tool-for-accurate-detection-of-urothelial-carcinoma
#7
Nuno André Padrão, Sara Monteiro-Reis, Jorge Torres-Ferreira, Luís Antunes, Luís Leça, Diana Montezuma, João Ramalho-Carvalho, Paula C Dias, Paula Monteiro, Jorge Oliveira, Rui Henrique, Carmen Jerónimo
BACKGROUND: Urothelial carcinoma (UC) is the most common cancer affecting the urinary system, worldwide. Lack of accurate early detection tools entails delayed diagnosis, precluding more efficient and timely treatment. In a previous study, we found that miR-129-2 and miR-663a were differentially methylated in UC compared with other genitourinary tract malignancies. Here, we evaluated the diagnostic performance of those microRNAs in urine. METHODS: Promoter methylation levels of miR-129-2 and miR-663a were assessed, using real-time quantitative methylation-specific PCR, in UC tissue samples (using normal urothelium as control) and, subsequently, in urine samples from UC and other genitourinary malignancies...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28078999/hdacs-and-hdac-inhibitors-in-urothelial-carcinoma-perspectives-for-an-antineoplastic-treatment
#8
Maria Pinkerneil, Michèle J Hoffmann, Wolfgang A Schulz, Günter Niegisch
Histone deacetylases (HDACs) influence diverse cellular processes and may contribute to tumor development and progression by multiple mechanisms. Class I HDACs are often overexpressed in cancers contributing to a genome-wide epigenetic state permitting increased proliferation, and diminished apoptosis and cell differentiation. Class IIA and IIB isoenzymes may likewise contribute to tumorigenesis as components of specific intranuclear repressor complexes or regulators of posttranslational protein modifications...
January 11, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28078533/risk-factors-for-intravesical-recurrence-after-nephroureterectomy-in-patients-with-upper-urinary-tract-urothelial-carcinoma
#9
Ryo Yamashita, Reiko Watanabe, Ichiro Ito, Hideo Shinsaka, Masafumi Nakamura, Masato Matsuzaki, Masashi Niwakawa
PURPOSE: To determine major risk factors for bladder cancer (BC) recurrence after nephroureterectomy (Nux) by focusing on the pathologic appearances of tumors in upper urinary tract urothelial carcinomas (UUTUCs). METHODS: We performed 147 Nux procedures between November 2002 and September 2015. Forty-eight patients were excluded because of a history of BC (28 patients), previous or concurrent radical cystectomy (9 patients), neoadjuvant chemotherapy (5 patients), and other reasons (6 patients)...
January 11, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28078232/the-luminal-basal-paradigm-in-the-urothelial-cancer-hope-for-individualized-approach
#10
EDITORIAL
Leonardo Oliveira Reis
No abstract text is available yet for this article.
December 2016: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28076502/carcinogenesis-in-rats-subjected-to-a-new-model-ureterosigmoidostomy-and-treated-with-l-lysine
#11
Alessandra Marques Dos Santos, Joao Paulo Ferreira Coelho, Camila de Carvalho Juanes, Rafael Barbosa de Azevedo, Nayanna de Oliveira Ramos Melo, Francisco Vagnaldo Fechine Jamacaru, Conceição Aparecida Dornelas
PURPOSE: To evaluate the effects of L-lysine on the intestinal and urothelial epithelium of rats subjected to ureterosigmoidostomy (new model for surgical carcinogenesis). METHODS: Forty-two rats, 9 weeks of age, were divided into 6 groups. Animals in groups A, B, C were subjected to ureterosigmoidostomy (US) and treated with L-lysine, celecoxib and H2O, respectively. Groups D, E and F (non-operated controls) received L-lysine, celecoxib and H2O, respectively. The L-lysine dose was 150 mg/kg and that of celecoxib was 20 mg/kg...
December 2016: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28076369/novel-inflammation-based-prognostic-score-for-predicting-survival-in-patients-with-metastatic-urothelial-carcinoma
#12
Yu-Li Su, Meng-Che Hsieh, Po-Hui Chiang, Ming-Tse Sung, Jui Lan, Hao-Lun Luo, Chun-Chieh Huang, Cheng-Hua Huang, Yeh Tang, Kun-Ming Rau
PURPOSE: We developed a novel inflammation-based model (NPS), which consisted of a neutrophil to lymphocyte ratio (NLR) and platelet count (PC), for assessing the prognostic role in patients with metastatic urothelial carcinoma (UC). MATERIALS AND METHODS: We performed a retrospective analysis of patients with metastatic UC who underwent systemic chemotherapy between January 1997 and December 2014 in Kaohsiung Chang Gung Memorial Hospital. The defined cutoff values for the NLR and PC were 3...
2017: PloS One
https://www.readbyqxmd.com/read/28075173/tgf%C3%AE-1-induced-lncrna-uca1-upregulation-promotes-gastric-cancer-invasion-and-migration
#13
Zhong-Kun Zuo, Yi Gong, Xiang-Heng Chen, Fei Ye, Zheng-Ming Yin, Qian-Ni Gong, Jiang-Sheng Huang
According to recent studies, long noncoding RNA urothelial carcinoma associated 1 (UCA1) is involved in the development and progression of many malignant tumors, including gastric cancer (GC). We validated the detailed role of UCA1 in human GC cell lines and GC tissues so as to determine its exact function and the underlying mechanism of GC invasion and migration. In our research, lncRNA-UCA1 was specifically upregulated in GC tissues and cell lines, and augmented GC cell proliferation, and invasive and migratory capabilities...
January 11, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28074261/perioperative-chemotherapy-in-upper-tract-urothelial-carcinoma-a-comprehensive-review
#14
REVIEW
Atiqullah Aziz, Jakub Dobruch, Kees Hendricksen, Luis A Kluth, Andrea Necchi, Aidan Noon, Michael Rink, Florian Roghmann, Roland Seiler, Paolo Gontero, Wassim Kassouf, Shahrokh F Shariat, Evanguelos Xylinas
PURPOSE: To evaluate the role of neoadjuvant (NAC) and adjuvant chemotherapy (AC) in patients with upper tract urothelial carcinoma (UTUC) treated with radical nephroureterectomy (RNU). METHODS: A comprehensive review of the current literature was performed searching for all studies investigating NAC and AC in UTUC in MEDLINE and https://clinicaltrials.gov , prior to April 2016. The following keywords were used: "ureteral neoplasms," "urothelium," "ureter," "upper tract urothelial," "chemotherapy," "adjuvant," "neoadjuvant" and relevant variants...
January 10, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28068625/loss-of-periplakin-expression-is-associated-with-the-tumorigenesis-of-colorectal-carcinoma
#15
Xiang Li, Guohui Zhang, Yan Wang, Ahmed Elgehama, Yang Sun, Lele Li, Yanhong Gu, Wenjie Guo, Qiang Xu
Periplakin (PPL), a member of the plakin protein family, has been reported to be down-expressed in urothelial carcinoma. The role of PPL in human colorectal cancer, however, remains largely unknown. Also little is known about the contribution of PPL to the malignant property of colorectal cancer and the intracellular function of PPL. In this study, we demonstrated that PPL was apparently down-expressed in colon carcinomas compared with normal and para-carcinoma tissues, which was correlated with the tumor size...
January 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28067543/h19-non-coding-rna-in-urine-cells-detects-urothelial-carcinoma-a-pilot-study
#16
Ilan Gielchinsky, Michal Gilon, Rasha Abu-Lail, Imad Matouk, Avraham Hochberg, Ofer N Gofrit, Iddo Z Ben-Dov
CONTEXT: Urothelial carcinoma (UC) is common and highly recurrent. Diagnosis and follow-up involve invasive cystoscopies. OBJECTIVE: To evaluate H19 RNA in urine cells as diagnostic tool for UC. MATERIALS AND METHODS: RT-PCR analysis of urine samples from healthy volunteers and UC patients. RESULTS: H19 RNA was unequivocally detected in the urine of 90.5% of patients and 25.9% of controls. H19 copies were three orders of magnitude higher in patients...
January 9, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/28065502/neoadjuvant-and-adjuvant-chemotherapy-use-in-upper-tract-urothelial-carcinoma
#17
Andrew Cohen, Kristine Kuchta, Sangtae Park
OBJECTIVE: To determine trends in neoadjuvant and adjuvant chemotherapy use for upper tract urothelial cancer and assess its effects on survival. MATERIALS AND METHODS: We identified all patients diagnosed with upper tract urothelial cancer who underwent surgical treatment in the SEER-Medicare database from 2002 to 2011. We collected and analyzed patient demographic, clinical, and pathologic characteristics. We strictly defined neoadjuvant and adjuvant chemotherapy and studied patients who met such criteria...
January 5, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28065418/second-line-chemotherapy-in-older-patients-with-metastatic-urothelial-carcinoma-pooled-analysis-of-10-second-line-studies
#18
Samer Salah, Jae-Lyun Lee, Antonio Rozzi, Hiroshi Kitamura, Kazumasa Matsumoto, Daniel J Vis, Sandy Srinivas, Rafael Morales-Barrera, Joan Carles, Dalia Al-Rimawi, Soonil Lee, Ki Hong Kim, Kouji Izumi, Jeremy Lewin
BACKGROUND: Older patients with metastatic urothelial carcinoma (UC) are under-represented in clinical trials, and data regarding outcomes for second-line therapy is limited. MATERIALS AND METHODS: Individual data for patients with metastatic UC, aged ≥ 70 years, were pooled from 10 second-line studies. The influence of potential prognostic factors on overall survival (OS) was assessed via univariate and multivariate Cox regression analysis. RESULTS: In total, 102 patients were included; the median age was 74...
December 22, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28065395/serial-retrograde-instillations-of-sustained-release-formulation-of-mitomycin-c-to-the-upper-urinary-tract-of-the-yorkshire-swine-using-a-thermosensitive-polymer-safety-and-feasibility
#19
Nicholas M Donin, Dalit Strauss-Ayali, Yael Agmon-Gerstein, Nadav Malchi, Andrew T Lenis, Stuart Holden, Allan J Pantuck, Arie S Belldegrun, Karim Chamie
BACKGROUND: MitoGel is a novel drug formulation intended for the treatment of upper tract urothelial cancer with proven feasibility and safety in an animal model. OBJECTIVE: To evaluate the feasibility, safety, toxicokinetics, and histologic changes associated with serial retrograde MitoGel instillations to the upper urinary tract in a swine model. DESIGN, SETTING, AND PARTICIPANTS: Overall, 27 Yorkshire swine underwent 6 once-weekly unilateral retrograde instillations of MitoGel...
January 3, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28064545/androgen-receptor-activation-a-prospective-therapeutic-target-for-bladder-cancer
#20
Taichi Mizushima, Kathleen A Tirador, Hiroshi Miyamoto
Patients with non-muscle-invasive or muscle-invasive bladder cancer undergoing surgery and currently available conventional therapy remain having a high risk of tumor recurrence or progression, respectively. Novel targeted molecular therapy is therefore expected to improve patient outcomes. Meanwhile, substantially higher incidence of bladder cancer in men has prompted research on androgen-mediated androgen receptor (AR) signaling in this malignancy. Indeed, preclinical evidence has suggested that AR signaling plays an important role in urothelial carcinogenesis and tumor outgrowth as well as resistance to some of the currently available conventional non-surgical therapies...
January 9, 2017: Expert Opinion on Therapeutic Targets
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