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Transitional bladder cancer

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https://www.readbyqxmd.com/read/28893347/mir-203-suppresses-bladder-cancer-cell-growth-and-targets-the-twist1
#1
Jie Shen, Jianhua Zhang, Minhui Xiao, Junfeng Yang, Ningnan Zhang
MiR-203 is an epigenetically silenced tumor-suppressive microRNA in tumors. This study was designed to investigate theeffects of miR-203 on the proliferation, migration, invasion and apoptosis of bladder cancer (BCa) cells. The expression levels of miR-203 in BCa tissues, the normal adjacent tissues, and the BCa cell lines were detected. BCa cells were transfected with miR-203 mimic and inhibitor to investigate the effect of miR-203 on cell functions and the epithelial mesenchymal transition (EMT). Cotransfection with miR-203 inhibitor and shRNA of the predicted target gene Twist1 (si-Twist1) was performed to investigate the target relationship of miR-203 and Twist1...
September 6, 2017: Oncology Research
https://www.readbyqxmd.com/read/28881595/effects-of-increased-kindlin-2-expression-in-bladder-cancer-stromal-fibroblasts
#2
Jitao Wu, Cuicui Yu, Li Cai, Youyi Lu, Lei Jiang, Chu Liu, Yongwei Li, Fan Feng, Zhenli Gao, Zhe Zhu, Shengqiang Yu, Hejia Yuan, Yuanshan Cui
Kindlin-2 is a focal adhesion protein highly expressed in bladder cancer stromal fibroblasts. We investigated the prognostic significance of Kindlin-2 in bladder cancer stromal fibroblasts and evaluated the effects of Kindlin-2 on the malignant behaviors of tumor cells. Immunohistochemical staining of 203 paraffin-embedded bladder cancer tissues showed that Kindlin-2 expression correlated with advanced stage, high grade, and relapse of bladder cancer. Kaplan-Meier survival analysis demonstrated that patients exhibiting high Kindlin-2 expression had shorter survival times than those with low Kindlin-2 expression (p < 0...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28871988/bladder-preserving-therapy-patterns-of-care-a-survey-of-us-radiation-oncologists
#3
Abhishek A Solanki, Brendan Martin, Mark Korpics, Christina Small, Matthew M Harkenrider, Timur Mitin
PURPOSE: Clinical trials have demonstrated the efficacy of bladder-preserving chemoradiation therapy (BPT) in muscle-invasive bladder cancer but have differed in the radiation therapy dose/fractionations, radiation therapy targets, and concurrent chemotherapy regimens used. No data exist on the technical and practical approaches actually used in clinical practice throughout the United States when delivering BPT. We performed a survey to explore radiation oncologists' practice patterns...
October 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28871659/overexpression-of-her-2-via-immunohistochemistry-in-canine-urinary-bladder-transitional-cell-carcinoma-a-marker-of-malignancy-and-possible-therapeutic-target
#4
F Millanta, J Impellizeri, L McSherry, G Rocchigiani, L Aurisicchio, G Lubas
Transitional cell carcinoma (TCC) is the most commonly diagnosed neoplasm in the urinary bladder. Distant metastases to the regional lymph nodes, lungs, abdominal organs or bones are noted in up to 50% of dogs at time of death. Surgical excision is often not practical as TCC typically involve the trigone of the bladder and/or occurs multifocally throughout the bladder with field cancerization. Therapeutic approaches are very challenging and the requirement to evaluate alternative therapeutic protocols that may prolong survival times in dogs bearing these tumours is compelling...
September 4, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28856847/comparison-of-patient-reported-acute-urinary-and-sexual-toxicity-scores-in-a-6-versus-2-fraction-course-of-high-dose-rate-prostate-brachytherapy-monotherapy
#5
Omar Ragab, Robyn Banerjee, Sang-June Park, Shyamal Patel, Mingle Zhang, Jason Wang, Maria Velez, David Jeffrey Demanes, Mitchell Kamrava
INTRODUCTION: To identify differences in acute urinary and sexual toxicity between a 6-fraction and 2-fraction high-dose-rate brachytherapy monotherapy regimen and correlate dosimetric constraints to short-term toxicity. METHODS: A single institution retrospective study of 116 men with prostate cancer treated with HDR monotherapy from 2010 to 2015 was conducted. Eighty-one men had 7.25 Gy × 6-fractions and 35 men had 13.5 Gy × 2-fractions. Patients had two CT-planned implants spaced 1-2 weeks apart...
August 29, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28841829/hypoxic-exosomes-facilitate-bladder-tumor-growth-and-development-through-transferring-long-non-coding-rna-uca1
#6
Mei Xue, Wei Chen, An Xiang, Ruiqi Wang, He Chen, Jingjing Pan, Huan Pang, Hongli An, Xiang Wang, Huilian Hou, Xu Li
BACKGROUND: To overcome the hostile hypoxic microenvironment of solid tumors, tumor cells secrete a large number of non-coding RNA-containing exosomes that facilitate tumor development and metastasis. However, the precise mechanisms of tumor cell-derived exosomes during hypoxia are unknown. Here, we aim to clarify whether hypoxia affects tumor growth and progression by transferring long non-coding RNA-urothelial cancer-associated 1 (lncRNA-UCA1) enriched exosomes secreted from bladder cancer cells...
August 25, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28837140/met-smad3-snail-circuit-mediated-by-mir-323a-3p-is-involved-in-regulating-epithelial-mesenchymal-transition-progression-in-bladder-cancer
#7
Jiangfeng Li, Xin Xu, Shuai Meng, Zhen Liang, Xiao Wang, Mingjie Xu, Song Wang, Shiqi Li, Yi Zhu, Bo Xie, Yiwei Lin, Xiangyi Zheng, Ben Liu, Liping Xie
Bladder cancer (BCa) is the one of the most common cancers with high incidence, occurrence and low 5-year survival rate. Emerging evidence indicates that DLK1-DIO3 genomic region especially the miRNA cluster in this region is involved in several pathologic processes and various cancers, and miR-323a-3p is a member of this miRNA cluster. In this study, we investigate the function and regulatory network of miR-323a-3p in BCa. miR-323a-3p is frequently downregulated in BCa tissues and three cell lines compared with adjacent non-tumorous tissues and bladder normal cell line (SV-HUC-1)...
August 24, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28789929/commentary-on-comprehensive-transcriptional-analysis-of-early-stage-urothelial-carcinoma-hedegaard-j-lamy-p-nordentoft-i-algaba-f-h%C3%A3-yer-s-ulh%C3%A3-i-bp-vang-s-reinert-t-hermann-gg-mogensen-k-thomsen-mb-nielsen-mm-marquez-m-segersten-u-aine-m-h%C3%A3-glund-m-birkenkamp
#8
Byron H Lee
Non-muscle-invasive bladder cancer (NMIBC) is a heterogeneous disease with widely different outcomes. We performed a comprehensive transcriptional analysis of 460 early-stage urothelial carcinomas and showed that NMIBC can be subgrouped into 3 major classes with basal- and luminal-like characteristics and different clinical outcomes. Large differences in biological processes such as the cell cycle, epithelial-mesenchymal transition, and differentiation were observed. Analysis of transcript variants revealed frequent mutations in genes encoding proteins involved in chromatin organization and cytoskeletal functions...
August 5, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28780419/down-regulation-of-microrna-224-inhibites-growth-and-epithelial-to-mesenchymal-transition-phenotype-via-modulating-sufu-expression-in-bladder-cancer-cells
#9
Xiaobo Miao, Hai Gao, Shiyong Liu, Meijuan Chen, Wenwen Xu, Xuguang Ling, Xubin Deng, Chuangzhou Rao
Aberrant expression of miR-224 is usually found in cancer studies; however, the role of miR-224 has seldom been reported in bladder cancer (BC). We explored miR-224's function and the underlying mechanism in BC. It was found that miR-224 expression was significantly up-regulated in BC tissues and cell lines. Knockdown of miR-224 decreased BC cell growth and invasion both in vitro and in vivo. We identified the SUFU protein as a downstream target of miR-224 by using luciferase and western blot assays. We proposed that miR-224 promoted BC cell growth and invasion via sustaining the activity of Hedgehog pathway, which was negatively regulated by SUFU...
August 2, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28779971/lncrna-h19-regulates-epithelial-mesenchymal-transition-and-metastasis-of-bladder-cancer-by-mir-29b-3p-as-competing-endogenous-rna
#10
Mengxin Lv, Zhenyu Zhong, Mengge Huang, Qiang Tian, Rong Jiang, Junxia Chen
Accumulating evidences indicate that long noncoding RNAs (lncRNAs) might play important roles in tumorigenesis and metastasis. EMT (epithelial-to-mesenchymal transition) is considered as a critical step in invasion and metastasis of various tumors including bladder cancer (BC). Recent researches have showed that lncRNA H19 is implicated in metastasis through regulating EMT and the reverse MET (mesenchymal-to-epithelial transition). However, underlying mechanisms remain largely unknown. Here, we screened lncRNA and mRNA expression profiles of BC with microarray assay...
August 2, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28775339/unraveling-a-tumor-type-specific-regulatory-core-underlying-e2f1-mediated-epithelial-mesenchymal-transition-to-predict-receptor-protein-signatures
#11
Faiz M Khan, Stephan Marquardt, Shailendra K Gupta, Susanne Knoll, Ulf Schmitz, Alf Spitschak, David Engelmann, Julio Vera, Olaf Wolkenhauer, Brigitte M Pützer
Cancer is a disease of subverted regulatory pathways. In this paper, we reconstruct the regulatory network around E2F, a family of transcription factors whose deregulation has been associated to cancer progression, chemoresistance, invasiveness, and metastasis. We integrate gene expression profiles of cancer cell lines from two E2F1-driven highly aggressive bladder and breast tumors, and use network analysis methods to identify the tumor type-specific core of the network. By combining logic-based network modeling, in vitro experimentation, and gene expression profiles from patient cohorts displaying tumor aggressiveness, we identify and experimentally validate distinctive, tumor type-specific signatures of receptor proteins associated to epithelial-mesenchymal transition in bladder and breast cancer...
August 4, 2017: Nature Communications
https://www.readbyqxmd.com/read/28757590/tanshinone-iia-inhibits-epithelial-mesenchymal-transition-in-bladder-cancer-cells-via-modulation-of-stat3-ccl2-signaling
#12
Sung-Ying Huang, Shu-Fang Chang, Kuan-Fu Liao, Sheng-Chun Chiu
Tanshinone IIA (Tan-IIA) is an extract from the widely used traditional Chinese medicine (TCM) Danshen (Salvia miltiorrhiza), and has been found to attenuate the proliferation of bladder cancer (BCa) cells (The IC50 were: 5637, 2.6 μg/mL; BFTC, 2 μg/mL; T24, 2.7 μg/mL, respectively.). However, the mechanism of the effect of Tan-IIA on migration inhibition of BCa cells remains unclear. This study investigates the anti-metastatic effect of Tan-IIA in human BCa cells and clarifies its molecular mechanism. Three human BCa cell lines, 5637, BFTC and T24, were used for subsequent experiments...
July 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28705118/curcumin-inhibits-bladder-cancer-progression-via-regulation-of-%C3%AE-catenin-expression
#13
Jing Shi, Yunpeng Wang, Zhuomin Jia, Yu Gao, Chaofei Zhao, Yuanxin Yao
Bladder cancer has a considerable morbidity and mortality impact with particularly poor prognosis. Curcumin has been recently noticed as a polyphenolic compound separated from turmeric to regulate tumor progression. However, the precise molecular mechanism by which curcumin inhibits the invasion and metastasis of bladder cancer cells is not fully elucidated. In this study, we investigate the effect of curcumin on the bladder cancer as well as possible mechanisms of curcumin. The expression of β-catenin was detected by quantitative real-time polymerase chain reaction and immunohistochemical analysis in a series of bladder cancer tissues...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28704682/mutagenic-potential-of-hypoxanthine-in-live-human-cells
#14
Stephen DeVito, Jordan Woodrick, Linze Song, Rabindra Roy
Hypoxanthine (Hx) is a major DNA lesion generated by deamination of adenine during chronic inflammatory conditions, which is an underlying cause of various diseases including cancer of colon, liver, pancreas, bladder and stomach. There is evidence that deamination of DNA bases induces mutations, but no study has directly linked Hx accumulation to mutagenesis and strand-specific mutations yet in human cells. Using a site-specific mutagenesis approach, we report the first direct evidence of mutation potential and pattern of Hx in live human cells...
June 28, 2017: Mutation Research
https://www.readbyqxmd.com/read/28687357/circular-rna-mylk-as-a-competing-endogenous-rna-promotes-bladder-cancer-progression-through-modulating-vegfa-vegfr2-signaling-pathway
#15
Zhenyu Zhong, Mengge Huang, Mengxin Lv, Yunfeng He, Changzhu Duan, Luyu Zhang, Junxia Chen
Accumulating evidences indicate that circular RNAs (circRNAs) play a vital role in modulating gene expression. However, the mechanisms underlying circRNAs remain largely elusive. Here, we screened circRNA and mRNA expression profiles of bladder carcinoma (BC) using microarray analysis. We found that circRNA-MYLK and VEGFA were significantly up-regulated and co-expressed in BC. Importantly, circRNA-MYLK levels were related to the progression of stage and grade of BC. Mechanistically, we demonstrated that circRNA-MYLK could directly bind to miR-29a and relieve suppression for target VEGFA, which activated VEGFA/VEGFR2 signaling pathway...
September 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28669156/cancer-incidence-and-mortality-district-cancer-registry-trivandrum-south-india
#16
Aleyamma Mathew, Preethi Sara George, Kalavathy M C, Padmakumari G, Jagathnath Krishna K M, Paul Sebastian
Background: Cancer is emerging as a major cause of morbidity and mortality in low and middle-income countries. Cancer registry figures help for planning and delivery of health services. This paper provided the first results of cancer incidence and mortality [Crude (CR) and age-standardized (ASR)] rates (world-standard population) of Trivandrum district, South India and compared with other registries under the network of National Cancer Registry Programme (NCRP), Government of India. Materials and Methods: Trivandrum district cancer registry encompasses a population of 3...
June 25, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28665471/effect-of-delayed-radical-cystectomy-for-invasive-bladder-tumors-on-lymph-node-positivity-cancer-specific-survival-and-total-survival
#17
Hakan Türk, Sıtkı Ün, Ahmet Cinkaya, Hilmi Kodaz, Murtaza Parvizi, Ferruh Zorlu
INTRODUCTION: Radical cystectomy (RC) is the main treatment option for patients with muscle-invasive bladder cancer (MIBC) and non-muscle-invasive bladder cancer (NMIBC), which carry the highest risk of progression. In this study, we investigated the effect of time from transurethral resection of the bladder (TUR-B) to cystectomy on lymph node positivity, cancer-specific survival and overall survival in patients with MIBC. METHODS: The records were reviewed of 530 consecutive patients who had RC and pelvic lymphadenectomy procedures with curative intent performed by selected surgeons between May 2005 and April 2016...
June 19, 2017: Tumori
https://www.readbyqxmd.com/read/28645552/mortality-following-augmentation-cystoplasty-a-transitional-urologist-s-viewpoint
#18
REVIEW
D A Husmann
INTRODUCTION: Three complications have been hypothesized to increase patient mortality following enterocystoplasty: spontaneous bladder perforation, bladder neoplasia, and chronic renal failure (CRF). The present study examined risk of their occurrence and discussed ways to improve the quality of care. MATERIALS AND METHODS: The present transitional clinic followed 385 patients with a history of bladder augmentation using either ileal, sigmoid, or ascending colon...
June 3, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28638669/external-beam-radiation-and-brachytherapy-for-prostate-cancer-is-it-a-possible-trigger-of-large-cell-neuroendocrine-carcinoma-of-the-urinary-bladder
#19
Ali Zakaria, Bayan Al Share, Sri Kollepara, Cynthia Vakhariya
Neuroendocrine tumors commonly involve the respiratory and gastrointestinal systems. Primary genitourinary neuroendocrine tumors are rare, accounting for less than 1% of all bladder carcinomas. Four histopathologic subtypes have been described. Among those, large cell neuroendocrine carcinoma (LCNEC) is the least common, is more aggressive, and generally presents in an advanced stage with poor prognosis compared to transitional cell bladder carcinoma. There is no standardized treatment regimen because of the rarity of the disease...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28631098/urolithins-impair-cell-proliferation-arrest-the-cell-cycle-and-induce-apoptosis-in-umuc3-bladder-cancer-cells
#20
Joana Liberal, Anália Carmo, Célia Gomes, Maria Teresa Cruz, Maria Teresa Batista
Ellagitannins have been gaining attention as potential anticancer molecules. However, the low bioavailability of ellagitannins and their extensive metabolization in the gastrointestinal tract into ellagic acid and urolithins suggest that the health benefits of consuming ellagitannins rely on the direct effects of their metabolites. Recently, chemopreventive and chemotherapeutic activities were ascribed to urolithins. Nonetheless, there is still a need to screen and evaluate the selectivity of these molecules and to elucidate their cellular mechanisms of action...
June 20, 2017: Investigational New Drugs
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