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Bladder invasion

Wei-Ming Li, Chun-Nung Huang, Hung-Lung Ke, Ching-Chia Li, Yu-Ching Wei, Hsin-Chih Yeh, Lin-Li Chang, Chun-Hsiung Huang, Peir-In Liang, Bi-Wen Yeh, Ti-Chun Chan, Chien-Feng Li, Wen-Jeng Wu
Urothelial carcinoma (UC) occurs in the upper urinary tract (UTUC) and the urinary bladder (UBUC). The molecular pathogenesis of UC has not been fully elucidated. Through data mining of a published transcriptome of UBUC (GSE31684), we identified Minichromosome Maintenance Complex Component 2 (MCM2) and MCM10 as the two most significantly upregulated genes in UC progression among the MCM gene family, the key factors for the initiation of DNA replication. To validate the clinical significance of MCM2 and MCM10, immunohistochemistry, evaluated by H-score, was used in a pilot study of 50 UTUC and 50 UBUC samples...
October 21, 2016: Oncotarget
Jean-Jacques Wyndaele
The management of patients with neurogenic bladder has changed substantially over the past decades. Obtaining balanced lower urinary tract function has become possible in most patients, although, urological complications remain among the most serious complications these patients are likely to have and, even today, these can have a negative effect on quality of life. To this extent, patients with spinal cord injury (SCI) are likely to develop neurogenic bladder, and data are available on most aspects of neurogenic bladder in these patients...
October 25, 2016: Nature Reviews. Urology
Massimo Alfano, Manuela Nebuloni, Raffaele Allevi, Pietro Zerbi, Erika Longhi, Roberta Lucianò, Irene Locatelli, Angela Pecoraro, Marco Indrieri, Chantal Speziali, Claudio Doglioni, Paolo Milani, Francesco Montorsi, Andrea Salonia
In the fields of biomaterials and tissue engineering simulating the native microenvironment is of utmost importance. As a major component of the microenvironment, the extracellular matrix (ECM) contributes to tissue homeostasis, whereas modifications of native features are associated with pathological conditions. Furthermore, three-dimensional (3D) geometry is an important feature of synthetic scaffolds favoring cell stemness, maintenance and differentiation. We analyzed the 3D structure, geometrical measurements and anisotropy of the ECM isolated from (i) human bladder mucosa (basal lamina and lamina propria) and muscularis propria; and, (ii) bladder carcinoma (BC)...
October 25, 2016: Scientific Reports
Ali Abdel Raheem, Atalla Alatawi, Dae Keun Kim, Abulhasan Sheikh, Koon Ho Rha
INTRODUCTION AND OBJECTIVES: Nephroureterectomy remains the gold standard treatment option for upper tract tumors. However, segmental ureterectomy may be another option in patients with single kidney, borderline renal function or high medical comorbidities. The aim of this video is to assess the feasibility of robotic surgery as a minimally invasive technique in treatment of a high comorbid patient with ureteric tumor. MATERIALS AND METHODS: Eighty-year old male patient, with a medical history of chronic hypertensive and uncontrolled Diabetes Mellitus, was referred to our department for treatment of ureteric tumor...
October 20, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Eric K S Shim, Gleen F Chandra, S Pedireddy, Soo-Y Lee
Edible bird's nest (EBN) is made from the glutinous salivary secretion of highly concentrated mucin glycoprotein by swiftlets (genus Aerodramus or Collocalia) native to the Indo-Pacific region. The unique Raman spectrum of EBN has vibrational lines that can be assigned to peptides and saccharides in the glycoprotein, and it can be used to screen for adulteration. The common edible adulterants classified into two types. Type I adulterants, such as fish bladder, pork skin, karaya gum, coralline seaweed, agar strips, and tremella fungus, were solids which adhered externally on the surface of the EBN cement...
September 2016: Journal of Food Science and Technology
Andrew M Hau, Mariah Z Leivo, Andrew S Gilder, Jing-Jing Hu, Steven L Gonias, Donna E Hansel
Mammalian target of rapamycin complex 2 (mTORC2) has been identified as a major regulator of bladder cancer cell migration and invasion. Upstream pathways that mediate mTORC2 activation remain poorly defined. Urokinase-type plasminogen activator receptor (uPAR) is a GPI-anchored membrane protein and known activator of cell-signaling. We identified increased uPAR expression in 94% of invasive human bladder cancers and in 54-71% of non-invasive bladder cancers, depending on grade. Normal urothelium was uPAR-immunonegative...
October 21, 2016: Cellular Signalling
Parminder Singh, Peter Black
OBJECTIVE: Checkpoint inhibitors have rapidly become a standard treatment option for metastatic urothelial carcinoma. A wave of enthusiasm for these drugs has pushed them also into the setting of localized bladder cancer, including both non-muscle-invasive bladder cancer (NMIBC) and muscle-invasive disease bladder cancer (MIBC). Here, we aimed to review the emerging role of checkpoint inhibition in localized bladder cancer. METHODS: We reviewed the current treatment landscape for both NMIBC and MIBC and established a significant unmet clinical need for novel therapies...
October 21, 2016: Urologic Oncology
Christoph Sadee, Eugene Kashdan
In this work, we investigate chemo- thermotherapy, a recently clinically-approved post-surgery treatment of non muscle invasive urothelial bladder carcinoma. We developed a mathematical model and numerically simulated the physical processes related to this treatment. The model is based on the conductive Maxwell's equations used to simulate the therapy administration and Convection-Diffusion equation for incompressible fluid to study heat propagation through the bladder tissue. The model parameters correspond to the data provided by the thermotherapy device manufacturer...
December 1, 2016: Mathematical Biosciences and Engineering: MBE
Ram A Pathak, Gregory A Broderick, Todd C Igel, Steven P Petrou, Paul R Young, Michael J Wehle, Michael G Heckman, Nancy N Diehl, Emily R Vargas, Kandarp Shah, David D Thiel
OBJECTIVE: To compare the frequency of postoperative encounters in the 30-day and 90-day postoperative periods for various bladder outlet obstruction surgical therapies. METHODS: All patients who underwent transurethral resection of the prostate (TURP), GreenLight laser photovaporization of the prostate (GL-PVP) (American Medical Systems Inc.), and holmium laser enucleation of the prostate (HoLEP) from January 1(st), 2012 through December 31(st), 2014 were followed for 6 months postoperatively...
October 19, 2016: Urology
Yubai Zhang, Maya Nolan, Hiroshi Yamada, Masami Watanabe, Yasutomo Nasu, Kohji Takei, Tetsuya Takeda
Cancer cell invasion is mediated by actin-based membrane protrusions termed invadopodia. Invadopodia consist of "core" F-actin bundles associated with adhesive and proteolytic machineries promoting cell invasion by degrading extracellular matrix (ECM). Formation of the F-actin core in invadopodia is regulated by various actin-binding proteins including Arp2/3 complex and cortactin. Dynamin GTPase localizes to the invadopodia and is implicated in cancer cell invasion, but its precise role at the invadopodia remained elusive...
October 19, 2016: Biochemical and Biophysical Research Communications
Fredrik Liedberg, Georg Jancke, Anne Sörenby, Päivi Kannisto
Radical cystectomy with neoadjuvant chemotherapy is the gold standard for treating muscle-invasive bladder cancer. Women subjected to radical cystectomy are frequently postmenopausal, and the median age for bladder cancer diagnosis in women in Sweden is currently 73 yr (Swedish National Bladder Cancer Register). Traditionally, most women treated with radical cystectomy have undergone simultaneous bilateral oophorectomy and hysterosalpingectomy to diminish the risk of later ovarian disease and ovarian bladder cancer recurrence, but also the belief that there is no impact on health or health-related quality of life associated with oophorectomy and the fact that it might be easier surgery to take the ovarian pedicles, rather than sparing the ovaries...
October 19, 2016: European Urology
Ahmed I Nossier, Ola S Mohammed, Rasha R Fakhr El-Deen, Ashraf S Zaghloul, Sanaa Eissa
Matrix metalloproteinases (MMPs), in particularly gelatinases (MMP-2 and MMP-9) were reported as urinary markers of bladder cancer. In this work, we developed a simple colorimetric gold nanoparticle (AuNP) assay for rapid and sensitive detection of urinary total gelatinase activity based on the surface plasmon resonance (SPR) property of AuNPs. Gelatin-modified AuNPs were stably suspended in solution even upon addition of an aggregation inducer as 6-mercaptohexan-1-ol (6-MCH). Gelatinases digest gelatin capping...
December 1, 2016: Talanta
Margarida Ferreira-Teixeira, Daniela Paiva-Oliveira, Belmiro Parada, Vera Alves, Vitor Sousa, Obinna Chijioke, Christian Münz, Flávio Reis, Paulo Rodrigues-Santos, Célia Gomes
BACKGROUND: High-grade non-muscle invasive bladder cancer (NMIBC) has a high risk of recurrence and progression to muscle-invasive forms, which seems to be largely related to the presence of tumorigenic stem-like cell populations that are refractory to conventional therapies. Here, we evaluated the therapeutic potential of Natural Killer (NK) cell-based adoptive immunotherapy against chemoresistant bladder cancer stem-like cells (CSCs) in a pre-clinical relevant model, using NK cells from healthy donors and NMIBC patients...
October 21, 2016: BMC Medicine
Renzo Colombo, Hans van Valenberg, Marco Moschini, Johannes A Witjes
OBJECTIVE: An updated review of intravesical radiofrequency (RF)-induced thermo-chemotherapy effect (RITE) for NMIBC with regard to efficacy, adverse events (AEs) and perspectives. EVIDENCE ACQUISITION: An extensive and sensitive search for RF-induced chemo-hyperthermia in Medline, Embase, Cochrane and databases was performed. A table of published clinical trials up to 2016 was constructed. No meta-analysis could be performed on the basis of new papers...
October 4, 2016: Urologia
Hao Min Li, Baihetiya Azhati, Mulati Rexiati, Wen Guang Wang, Xiao Dong Li, Qiang Liu, Yu-Jie Wang
OBJECTIVE: To investigate the effect of smoking status, cumulative smoking exposure and smoking cessation on the outcomes of patient with non-muscle-invasive bladder cancer (NMIBC). METHODS: We collected smoking data from 484 patients with NMIBC who were treated with transurethral resection (TUR); smoking status was categorized as (never smokers vs current smokers vs former smokers). Cumulative smoking exposure was categorized as high smoking exposure (cigarette index ≥400) versus low smoking exposure (cigarette index <400)...
October 20, 2016: International Urology and Nephrology
Matthew J Bream, Matthew J Maurice, Joshua Altschuler, Hui Zhu, Robert Abouassaly
OBJECTIVE: To assess national utilization patterns for cystectomy and non-surgical treatments for elderly patients with muscle-invasive bladder cancer (MIBC). MATERIALS AND METHODS: From the National Cancer Data Base (NCDB), we identified patients ≥75 years old with T2-T4, non-metastatic urothelial carcinoma between 2003 and 2012. Patients were grouped by treatment: cystectomy, chemoradiation, or non-standard treatment. Cochran-Armitage trend test was used to evaluate time trends for treatments and perioperative outcomes...
October 17, 2016: Urology
Thomas Golabesk, Joan Palou, Oscar Rodriguez, Ruben Parada, Sergio Skrobot, José Antonio Peña, Humberto Villavicencio
OBJECTIVE: To evaluate the risk of long-term tumour recurrence and progression in patients with low- and intermediate-risk NMIBCs, which could facilitate optimisation in the follow-up schedules. PATIENTS AND METHODS: A single-institution, retrospective analysis of 704 patients with primary TaG1, TaG2, T1G1, and T1G2 urothelial carcinomas of the bladder (UBS) without concomitant carcinoma in situ (CIS), treated with transurethral resection (TUR) was performed. Response was determined and monitored by routine periodic urine cytology, cystoscopy, and upper tract imaging...
October 17, 2016: Urology
G Magistro, C G Stief, C Gratzke
Novel minimally invasive treatment options for the management of male lower urinary tract symptoms (LUTS) due to bladder outlet obstruction (BOO) aim to provide equal efficacy compared to standard techniques with a more favourable safety profile. The preservation of all aspects of male sexual function including antegrade ejaculation is increasingly important to patients. It should be ideally performed in an outpatient setting under local anesthesia to assure a short recovery time. Novel injectables for intraprostatic application (botulinum neurotoxin A, NX-1207, PRX302) have emerged and first phase III results could not confirm the promising initial data...
October 19, 2016: Der Urologe. Ausg. A
He-Peng Cheng, Qian Liu, Yang Li, Xiao-Dong Li, Chao-Yang Zhu
Protein disulfide isomerases A6 (PDIA6) belongs to the PDI family. Recently, PDIA6 was found to have a close association with various cancers. However, there has been little investigation into the biological functions of PDIA6 in bladder cancer (BC). In this study, we explored the expression pattern and functional significance of PDIA6 in BC. We found that PDIA6 was overexpressed in BC tissues and cell lines. The in vitro study showed that PDIA6 downregulation significantly inhibited BC proliferation and invasion...
October 18, 2016: Oncology Research
Yuichiro Kizaki, Tomonori Nagai, Ken Ohara, Yosuke Gomi, Taichi Akahori, Yoshihisa Ono, Shigetaka Matsunaga, Yasushi Takai, Masahiro Saito, Kazunori Baba, Hiroyuki Seki
BACKGROUND: While ovarian mature cystic teratomas are benign ovarian germ-cell tumors and the most common type of all ovarian tumors, the formation of fistulas into surrounding organs such as the bladder and the intestinal tract is extremely rare. This report documents a case of ovarian mature cystic teratoma with a rectal fistula, thought to be caused by local inflammation. CASE DESCRIPTION: A pelvic mass was diagnosed as an ovarian mature cystic teratoma of approximately 10 cm in diameter on transvaginal ultrasound and magnetic resonance examinations...
2016: SpringerPlus
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