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https://www.readbyqxmd.com/read/29150702/high-pdl1-mrna-expression-predicts-better-survival-of-stage-pt1-non-muscle-invasive-bladder-cancer-nmibc-patients
#1
Johannes Breyer, Ralph M Wirtz, Wolfgang Otto, Philipp Erben, Thomas S Worst, Robert Stoehr, Markus Eckstein, Stefan Denzinger, Maximilian Burger, Arndt Hartmann
INTRODUCTION AND OBJECTIVES: Checkpoint inhibition has emerged as new therapeutic option in muscle-invasive bladder cancer. The objective of the present study was to evaluate the prognostic role of PD1 and PDL1 expression in non-muscle-invasive bladder cancer (NMIBC) and establish an objective measuring method using RNA quantification. MATERIALS AND METHODS: We retrospectively analyzed clinical data and formalin-fixed paraffin-embedded tissues (FFPE) of patients with stage pT1 NMIBC who underwent transurethral resection of the bladder...
November 17, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29150671/urothelial-cancer-proteomics-provides-both-prognostic-and-functional-information
#2
Guillermo de Velasco, Lucia Trilla-Fuertes, Angelo Gamez-Pozo, Maria Urbanowicz, Gustavo Ruiz-Ares, Juan M Sepúlveda, Guillermo Prado-Vazquez, Jorge M Arevalillo, Andrea Zapater-Moros, Hilario Navarro, Rocio Lopez-Vacas, Ray Manneh, Irene Otero, Felipe Villacampa, Jesus M Paramio, Juan Angel Fresno Vara, Daniel Castellano
Traditionally, bladder cancer has been classified based on histology features. Recently, some works have proposed a molecular classification of invasive bladder tumors. To determine whether proteomics can define molecular subtypes of  muscle invasive urothelial cancer (MIUC) and allow evaluating the status of biological processes and its clinical value. 58 MIUC patients who underwent curative surgical resection at our institution between 2006 and 2012 were included. Proteome was evaluated by high-throughput proteomics in routinely archive FFPE tumor tissue...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29148713/wireless-acoustic-surface-actuators-for-miniaturized-endoscopes
#3
Tian Qiu, Fabian Adams, Stefano Palagi, Kai Melde, Andrew G Mark, Ulrich Wetterauer, Arkadiusz Miernik, Peer Fischer
Endoscopy enables minimally invasive procedures in many medical fields, such as urology. However, current endoscopes are normally cable-driven, which limits their dexterity and makes them hard to miniaturize. Indeed current urological endoscopes have an outer diameter of about 3 mm and still only possess one bending degree of freedom. In this paper, we report a novel wireless actuation mechanism that increases the dexterity and that permits the miniaturization of a urological endoscope. The novel actuator consists of thin active surfaces that can be readily attached to any device and are wirelessly powered by ultrasound...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29148427/urothelial-carcinoma-of-the-bladder-in-pediatric-patient-four-case-series-and-review-of-the-literature
#4
Murat Uçar, Metin Demirkaya, Berna Aytaç Vuruşkan, Emin Balkan, Nizamettin Kılıç
BACKGROUND: Urothelial carcinoma (UC) of bladder is a rare condition in children. Majority of the cases are non-invasive and low grade in this age group. However, there is no follow-up protocol defined for this patient group. The objective of this study is to draw attention to childhood bladder tumors and focus on current recommendations for postoperative follow-up together with our experience with four cases. CASE REPORT: A total of 4 cases aged under the age of 18, who were treated in our clinics between 2001 and 2015 with the diagnosis of urothelial carcinoma were retrospectively evaluated...
November 17, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/29147616/mrna-expression-levels-of-genes-involved-in-antitumor-immunity-identification-of-a-3-gene-signature-associated-with-prognosis-of-muscle-invasive-bladder-cancer
#5
Constance Le Goux, Sophie Vacher, Géraldine Pignot, Mathilde Sibony, Nicolas Barry Delongchamps, Benoit Terris, Eliane Piaggio, Marc Zerbib, Diane Damotte, Ivan Bieche
Immunotherapy for bladder cancer has given promising results. Here we aimed to evaluate the possible involvement and prognostic value of 33 genes involved in the immune response during bladder carcinogenesis. Expression levels were assessed by quantitative real-time RT-PCR in normal and tumor human bladder samples. Immunohistochemistry was performed to evaluate the protein expression of 2 genes and relation of the mRNA and protein levels was analyzed. Tumors were obtained from 154 patients (83 with muscle-invasive bladder cancer [MIBC] and 71 non-MIBC [NMIBC]) who underwent transurethral bladder resection or radical cystectomy between 2002 and 2006...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29146217/bladder-herpes-infection-in-a-patient-with-low-grade-non-muscle-invasive-bladder-cancer
#6
Pablo Garrido-Abad, Ariel Díaz-Menéndez, Manuel Fernández-Arjona
Bladder herpes is a very uncommon event related to herpes simplex virus infection. We report a 69-year-old man with 4-year history of bladder cancer who presented with presented with dysuria and urinary frequency. Cystoscopy showed erythematous lesion of the bladder mucosa that was biopsied and revealed multi-lobed nuclei with eosinophilic intranuclear inclusions, and presence of intracytoplasmic vacuoles that were suggestive of bladder involvement by herpes simplex virus (HSV). Different bladder disorders have been associated to herpes virus, but spontaneous resolution generally occurs in 1 to 2 months...
November 13, 2017: Urology
https://www.readbyqxmd.com/read/29142609/role-of-5-aza-cdr-in-mitomycin-c-chemosensitivity-of-t24-bladder-cancer-cells
#7
Hui-Hui Zhang, Bo Huang, You-Han Cao, Qing Li, Han-Feng Xu
Chemotherapeutic insensitivity is one of key obstacles to effectively treating muscle invasive bladder cancer. 5-Aza-2'-deoxycytidine (5-Aza-CdR) has been identified as a tumor suppressive agent in various types of cancer. The aim of the present study was to identify the effects of 5-Aza-CdR on the mitomycin-C (MMC) chemosensitivity of T24 bladder cancer cells and investigate the underlying mechanisms. T24 cells were treated with a combination of MMC and 5-Aza-CdR at various concentrations. The rates of proliferation and apoptosis were assessed by an MTT assay and flow cytometry, respectively...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29141625/microrna-profiling-of-dogs-with-transitional-cell-carcinoma-of-the-bladder-using-blood-and-urine-samples
#8
Michael S Kent, Allison Zwingenberger, Jodi L Westropp, Laura E Barrett, Blythe P Durbin-Johnson, Paramita Ghosh, Ruth L Vinall
BACKGROUND: Early signs of canine transitional cell carcinoma (TCC) are frequently assumed to be caused by other lower urinary tract diseases (LUTD) such as urinary tract infections, resulting in late diagnosis of TCC which could be fatal. The development of a non-invasive clinical test for TCC could dramatically reduce mortality. To determine whether microRNAs (miRNAs) can be used as non-invasive diagnostic biomarkers, we assessed miRNA expression in blood and/or urine from dogs with clinically normal bladders (n = 28), LUTD (n = 25), and TCC (n = 17)...
November 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29141603/detect-i-detect-ii-a-study-protocol-for-a-prospective-multicentre-observational-study-to-validate-the-uromark-assay-for-the-detection-of-bladder-cancer-from-urinary-cells
#9
Wei Shen Tan, Andrew Feber, Liqin Dong, Rachael Sarpong, Sheida Rezaee, Simon Rodney, Pramit Khetrapal, Patricia de Winter, Frelyn Ocampo, Rumana Jalil, Norman R Williams, Chris Brew-Graves, John D Kelly
BACKGROUND: Haematuria is a common finding in general practice which requires visual inspection of the bladder by cystoscopy as well as upper tract imaging. In addition, patients with non-muscle invasive bladder cancer (NMIBC) often require surveillance cystoscopy as often as three monthly depending on disease risk. However, cystoscopy is an invasive procedure which is uncomfortable, requires hospital attendance and is associated with a risk of urinary tract infection. We have developed the UroMark assay, which can detect 150 methylation specific alteration specific to bladder cancer using DNA from urinary sediment cells...
November 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29140994/copy-number-gains-at-chr3p25-and-chr11p11-are-associated-with-lymph-node-involvement-and-survival-in-muscle-invasive-bladder-tumors
#10
Karla J Lindquist, Thomas Sanford, Terence W Friedlander, Pamela L Paris, Sima P Porten
Patients with muscle-invasive bladder cancer (MIBC) have poorer prognoses if cancer has metastasized to the lymph nodes. Genomic markers of lymph node involvement (LNI) would be useful for treatment planning, especially if measured at the biopsy stage, but large-scale studies of tumor tissue at any stage are needed to discover robust markers of LNI. We performed a genome-wide query of copy number alterations (CNA) in 237 MIBC surgical tumor specimens from patients in The Cancer Genome Atlas who had radical cystectomy and lymphadenectomy without neoadjuvant treatment...
2017: PloS One
https://www.readbyqxmd.com/read/29139108/a-3-untranslated-region-polymorphism-rs2304277-in-the-dna-repair-pathway-gene-ogg1-is-a-novel-risk-modulator-for-urothelial-bladder-carcinoma
#11
Tayyaba Ahmed, Saira Nawaz, Rabia Noreen, Kashif Sardar Bangash, Abdur Rauf, Muhammad Younis, Khursheed Anwar, Muhammad Athar Khawaja, Maleeha Azam, Abid Ali Qureshi, Saeed Akhter, Lambertus A Kiemeney, Raheel Qamar, Syeda Hafiza Benish Ali
Altered DNA repair capacity may affect an individual's susceptibility to cancers due to compromised genomic integrity. This study was designed to elucidate the association of selected polymorphisms in DNA repair genes with urothelial bladder carcinoma (UBC). OGG1 rs1052133 and rs2304277, XRCC1 rs1799782 and rs25487, XRCC3 rs861539, XPC rs2228001, and XPD rs13181 were genotyped using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 200 UBC cases and 200 controls. We found association of OGG1 rs2304277 [odds ratio (OR)GG = 3...
November 15, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/29138560/biodistribution-of-gold-nanoparticles-in-bbn-induced-muscle-invasive-bladder-cancer-in-mice
#12
Henry M Smilowitz, Lauren J Tarmu, Mary Melinda Sanders, John A Taylor, Dharamainder Choudhary, Crystal Xue, Nathaniel A Dyment, Dan Sasso, Xiaomeng Deng, James F Hainfeld
Bladder-sparing options are being developed for muscle-invasive bladder cancer in place of radical cystectomy, including the combination of chemotherapy and radiation therapy. We reasoned that improving the radiotherapy component of chemoradiation could improve the control of locally advanced disease. Previously, we showed that gold nanoparticles (AuNPs) are potent enhancers of radiation therapy. We hypothesized that if AuNPs were to preferentially localize to bladder tumors, they may be used to enhance the radiation component of muscle-invasive bladder tumor therapy...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29136510/genomic-subtypes-of-non-invasive-bladder-cancer-with-distinct-metabolic-profile-and-female-gender-bias-in-kdm6a-mutation-frequency
#13
Carolyn D Hurst, Olivia Alder, Fiona M Platt, Alastair Droop, Lucy F Stead, Julie E Burns, George J Burghel, Sunjay Jain, Leszek J Klimczak, Helen Lindsay, Jo-An Roulson, Claire F Taylor, Helene Thygesen, Angus J Cameron, Anne J Ridley, Helen R Mott, Dmitry A Gordenin, Margaret A Knowles
Bladder cancer incurs a higher lifetime treatment cost than other cancers due to frequent recurrence of non-invasive disease. Improved prognostic biomarkers and localized therapy are needed for this large patient group. We defined two major genomic subtypes of primary stage Ta tumors. One of these was characterized by loss of 9q including TSC1, increased KI67 labeling index, upregulated glycolysis, DNA repair, mTORC1 signaling, features of the unfolded protein response, and altered cholesterol homeostasis. Comparison with muscle-invasive bladder cancer mutation profiles revealed lower overall mutation rates and more frequent mutations in RHOB and chromatin modifier genes...
November 13, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29136502/molecular-landscape-of-non-muscle-invasive-bladder-cancer
#14
Joshua J Meeks, Seth P Lerner
In this issue of Cancer Cell, Hurst et al. report an integrated analysis of non-invasive (stage Ta) bladder cancer. Two genomic subtypes are distinguished by chromosome 9q loss, resulting in increased AKT/PI3K/mTOR signaling. Tumors from female patients have a higher frequency of KDM6A mutations.
November 13, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29136274/diagnostic-accuracy-of-magnetic-resonance-imaging-in-detecting-the-severity-of-abnormal-invasive-placenta-a-systematic-review-and-meta-analysis
#15
Alessandra Familiari, Marco Liberati, Philip Lim, Giorgio Pagani, Giuseppe Cali, Danilo Buca, Lamberto Manzoli, Maria Elena Flacco, Giovanni Scambia, Francesco D'Antonio
Accurate prenatal diagnosis of abnormally invasive placenta (AIP) is fundamental because it significantly reduces maternal morbidities MATERIAL AND METHODS: Medline, Embase, CINAHL and The Cochrane databases were searched. The primary aim of the present review was to elucidate the diagnostic accuracy of prenatal magnetic resonance imaging (MRI) in recognizing the severity of AIP, defined as the depth and topography of invasion. The secondary aim was to ascertain the strength of association between each MRI sign and the depth of placental invasion and to test their individual predictive accuracy in detecting such invasion...
November 14, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29135138/-laparoscopic-radical-cystectomy-innovations-and-classics
#16
D V Perlin, I V Aleksandrov, V P Zipunnikov, M Popova
INTRODUCTION: Radical cystectomy remains the gold-standard treatment for muscle-invasive bladder cancer. To combine the advantages of minimally invasive interventions and the well-established open surgery, we attempted to reproduce as accurately as possible the technique of open radical cystectomy using a laparoscopic procedure. MATERIALS AND METHODS: The study comprised 35 patients (27 men and 8 women) with invasive bladder cancer who underwent laparoscopic radical cystectomy (LRC) between April 2013 and March 2016...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29135135/-ultrasound-indicators-of-the-prostate-urinary-bladder-and-uroflowmetry-parameters-in-the-diagnosis-of-infravesical-obstruction-in-men-with-benign-prostatic-hyperplasia
#17
G G Krivoborodov, N S Efremov, A D Bolotov
RELEVANCE: Benign prostatic hyperplasia (BPH) is one of the most common urologic diseases of males. In patients who failed drug therapy of lower urinary tract symptoms (LUTS) caused by BPH, the most important indication for surgery is the presence of infravesical obstruction (IVO). IVO is detected by pressure-flow studies and is characterized by high detrusor pressure with decreased urinary flow rate. The invasiveness and high cost of this investigation has stimulated a search for non-invasive techniques that could reliably characterize the presence of IVO secondary to BPH...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29133165/infant-crossed-renal-ectopia-with-upj-obstruction-repaired-via-robot-assisted-laparoscopic-pyeloplasty
#18
K Puttmann, G O Huang, J T White, K Kukreja, A Seth, C J Koh
INTRODUCTION: We present a robot-assisted approach to surgical treatment of UPJ obstruction associated with crossed renal ectopia in a male infant. METHODS: A 31 year-old woman presented at 37 weeks gestation for prenatal hydronephrosis and delivered at 39 weeks. Renal ultrasound identified the bladder and right kidney in a crossed ectopic position in the left pelvis, and MRI showed the cystic lesion to be hydronephrosis associated with a ureteropelvic junction obstruction of the crossed ectopic right kidney...
October 27, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29131387/laparoscopic-mesh-repair-of-a-labial-hernia
#19
Philippe Grange, Fevzi Shakir, Ganesh Thiagamoorthy, George Araklitis, Dudley Robinson, Linda Cardozo
AIMS: To present a narrated video designed to demonstrate the steps involved in a laparoscopic mesh repair of a labial hernia. METHODS: This was in a 76-year-old woman who presented with a small bowel hernia in to her left labium majus. In 2014 she had a robotically assisted radical cystectomy for bladder cancer with anterior exenteration. She developed the hernia in February 2015 and initially a vaginal approach was attempted to repair the hernia (with layered non-absorbable sutures to close the fascia over the defect) at her local hospital, although this was unsuccessful...
November 13, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29129378/transvaginal-natural-orifice-transluminal-endoscopic-surgery-a%C3%A2-new-approach-to-myomectomy
#20
Jan Baekelandt
OBJECTIVE: To demonstrate a new approach for performing a myomectomy via transvaginal natural-orifice transluminal endoscopic surgery (vNOTES) as an alternative to laparoscopic myomectomy. DESIGN: Stepwise explanation of the technique with the use of original video footage. SETTING: Hospital. PATIENT(S): Eight patients were treated transvaginally for intramural, subserosal, and pedunculated myomas. INTERVENTION(S): In case of a posterior myoma, a 2...
November 9, 2017: Fertility and Sterility
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