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https://www.readbyqxmd.com/read/28631573/effects-of-mir-1236-3p-and-mir-370-5p-on-activation-of-p21-in-various-tumors-and-its-inhibition-on-the-growth-of-lung-cancer-cells
#1
Chuanchang Li, Qiangqiang Ge, Jiaxuan Liu, Qingsong Zhang, Chenghe Wang, Kai Cui, Zhong Chen
The mechanism of dsRNA-induced gene activation (RNAa) is being gradually unveiled. The plentiful evidence that it existed in mammalian species other than human demonstrated that dsRNA-mediated RNAa is a conservative phenomenon. Simultaneously, accumulating evidence suggested that microRNAs could activate gene expression by targeting promoter. Nevertheless, it is ambiguous whether microRNA-induced gene activation in different human cells is a common phenomenon. The study we performed verified that miR-1236-3p (miR-1236) and miR-370-5p can activate p21 expression in bladder cancer (BCa) T24, EJ cells, and non-small-cell lung carcinoma A549 cells, while in hepatocellular HepG2 cells both microRNAs cannot effectively induce the expression of P21(WAF1/CIP1) (p21)...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28606732/constitutive-and-acquired-mechanisms-of-resistance-to-immune-checkpoint-blockade-in-human-cancer
#2
Matteo Bellone, Angela Rita Elia
Cancer immunotherapy with monoclonal antibodies directed against regulatory pathways in T lymphocytes has been revolutionizing medical oncology, and the clinical success of monoclonal antibodies targeting either cytotoxic T lymphocyte antigen-4 (CTLA-4) or program death-1 (PD-1) in patients affected by melanoma, Hodgkin's lymphoma, Merkel cell carcinoma, and head and neck, bladder, renal cell or non-small cell lung cancer is way beyond the most optimistic expectation. However, immune checkpoint blockade (ICB) has failed to arrest progression in a consistent amount of patients affected by those tumors, and various histological types, including breast, colon and prostate cancer, are less sensitive to this therapeutic approach...
June 2, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28600503/transcriptome-sequencing-identifies-anln-as-a-promising-prognostic-biomarker-in-bladder-urothelial-carcinoma
#3
Shuxiong Zeng, Xiaowen Yu, Chong Ma, Ruixiang Song, Zhensheng Zhang, Xiaoyuan Zi, Xin Chen, Yang Wang, Yongwei Yu, Junjie Zhao, Rongchao Wei, Yinghao Sun, Chuanliang Xu
The prognosis of bladder urothelial carcinoma (BLCA) varies greatly even for patients with similar pathological characteristics. We conducted transcriptome sequencing on ten pairs of BLCA samples and adjacent normal tissues to identify differentially expressed genes. Anillin (ANLN) was identified as a transcript that was significantly up-regulated in BLCA samples compared with normal tissues. Prognostic power of candidate gene was studied using qRT-PCR and immunohistochemistry on 40 and 209 patients, respectively...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28591741/identification-of-hmex-3a-and-its-effect-on-human-bladder-cancer-cell-proliferation
#4
Ying Huang, Chao Fang, Jing-Wen Shi, Yu Wen, Da Liu
In this study, hMex-3A was selected from TCGA database as a research object to observe the effects of small interfering RNA (siRNA) targeting hMex-3A on the biological activities of human bladder cancer and explore its mechanism for the first time. In this study, there were 2 groups including negative control group and hMex-3A-siRNA-transfected cells group for 5637 and T24 cell lines, respectively. After bladder cancer cells were transfected with the interference RNA sequence, proliferation of transfected cells were assessed by Celigo Cell Counting, and apoptosis were detected by flow cytometry...
May 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28578357/is-survival-after-radical-cystectomy-for-bladder-cancer-in-saudi-patients-different-from-that-of-western-patients
#5
Alaa Mokhtar, Mohamed Matar Al, Waleed Mohamad Al, Khalid Al Othman, Said A Kattan, Mohammed Faihan Al
BACKGROUND: Although radical cystectomy (RC) is considered the gold standard treatment of muscle invasive bladder cancer, nearly half of patients develop metastases and ultimately die within 2 years. OBJECTIVE: To assess survival, evaluate different prognostic factors that may affect disease-free survival (DFS) in Saudi patients after RC for carcinoma of the bladder and to compare our results with those of Western countries. DESIGN: Retrospective chart review...
May 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28578276/decoding-nadph-oxidase-4-expression-in-human-tumors
#6
Jennifer L Meitzler, Hala R Makhlouf, Smitha Antony, Yongzhong Wu, Donna Butcher, Guojian Jiang, Agnes Juhasz, Jiamo Lu, Iris Dahan, Pidder Jansen-Dürr, Haymo Pircher, Ajay M Shah, Krishnendu Roy, James H Doroshow
NADPH oxidase 4 (NOX4) is a redox active, membrane-associated protein that contributes to genomic instability, redox signaling, and radiation sensitivity in human cancers based on its capacity to generate H2O2 constitutively. Most studies of NOX4 in malignancy have focused on the evaluation of a small number of tumor cell lines and not on human tumor specimens themselves; furthermore, these studies have often employed immunological tools that have not been well characterized. To determine the prevalence of NOX4 expression across a broad range of solid tumors, we developed a novel monoclonal antibody that recognizes a specific extracellular region of the human NOX4 protein, and that does not cross-react with any of the other six members of the NOX gene family...
May 26, 2017: Redox Biology
https://www.readbyqxmd.com/read/28521431/microrna-320a-is-downregulated-in-non-small-cell-lung-cancer-and-suppresses-tumor-cell-growth-and-invasion-by-directly-targeting-insulin-like-growth-factor-1-receptor
#7
Jianguo Wang, Chunyun Shi, Jianfei Wang, Li Cao, Li Zhong, Dongmei Wang
Accumulating evidence has demonstrated that microRNAs (miRs/miRNAs) are implicated in carcinogenesis and cancer progression, and can function as oncogenes or tumor suppressor genes in human cancer types. Previous profile studies of miRNA expression levels have revealed that miR-320a was downregulated in breast cancer, colon cancer, bladder cancer, glioblastoma and salivary adenoid cystic carcinoma. However, its expression level, potential functions and the mechanisms underlying its functions in non-small cell lung cancer (NSCLC) require further investigation...
May 2017: Oncology Letters
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
#8
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
#9
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/28488128/ki-67-and-cell-cycle-regulators-p53-p63-and-cyclind1-as-prognostic-markers-for-recurrence-progression-of-bladder-urothelial-carcinoma
#10
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/28462847/breaking-the-ritual-metabolic-cycle-in-order-to-save-acetyl-coa-a-potential-role-for-mitochondrial-humanin-in-t2-bladder-cancer-aggressiveness
#11
Nesreen Nabil Omar, Reham Fathy Tash, Youssef Shoukry, Karim Omar ElSaeed
INTRODUCTION: Cancer cells may exhibit outsourcing of their high energy need in order to avoid the intrinsic mitochondrial apoptosis. Reduced mitochondrial respiration and accumulation of mitochondrial genome mutations are among metabolic transformations in this regard. Mitochondrial humanin (MT-RNR2) is a small peptide with anti-apoptotic activities attributed to binding some pro-apoptotic proteins. AIM OF THE WORK: The current study aims at investigating the expression of mitochondrial humanin in bladder tumor cells and the possible casting of humanin anti-apoptotic action through orchestrating some of the mitochondrial metabolic enzymes...
April 24, 2017: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/28458816/orthotopic-neobladder-in-patient-with-locally-advanced-small-cell-carcinoma-of-the-bladder-a-case-report-and-review-of-the-literature
#12
Pero Bokarica
Small cell carcinoma of the urinary bladder (SCCUB) is a rare, aggressive variant of neuroendocrine nonepithelial tumor. The best treatment results are achieved by combined cystectomy and chemotherapy. Same as in urothelial bladder cancer, a question remains about the urinary diversion in locally advanced disease. Studies on surgical treatment of patients with SCCUB most often do not clearly specify the type of urinary diversion performed, and we could not find information that orthotopic urinary diversion was performed in those patients...
February 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28438212/primary-follicular-dendritic-cell-sarcoma-of-the-urinary-bladder-the-first-case-report-and-potential-diagnostic-pitfalls
#13
Guang-Jie Duan, You-Li Wu, Hui Sun, Lang Lang, Zhi-Wen Chen, Xiao-Chu Yan
BACKGROUND: Extranodal follicular dendritic cell sarcoma (FDCS) is a very rare malignancy with a variable clinical course. It is often not considered and has the potential to result in a misdiagnosis of other common sarcomas or sarcomatoid carcinomas. This is particularly true with the preoperative biopsy specimen, in which the tissue sample is often small. CASE PRESENTATION: A case of FDCS in a 63-year-old woman, arising in the urinary bladder, a previously unreported site, is described...
April 24, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28433471/is-transurethral-resection-alone-enough-for-the-diagnosis-of-histological-variants-a-single-center-study
#14
Marco Moschini, Shahrokh F Shariat, Massimo Freschi, Francesco Soria, David D'Andrea, Mohammad Abufaraj, Beat Foerster, Paolo Dell'Oglio, Emanuele Zaffuto, Agostino Mattei, Andrea Salonia, Francesco Montorsi, Alberto Briganti, Andrea Gallina, Renzo Colombo
INTRODUCTION: To evaluate incidence of histological variants and grade agreement between transurethral resection (TUR) and radical cystectomy (RC) in patients with bladder cancer. METHODS: A total of 779 patients treated with TUR and subsequently with RC between 1990 and 2013 at a single center were analyzed retrospectively. Variant histology classifications used in our analyses were sarcomatoid, small cell, squamous, or micropapillary. Grade agreement was calculated using the Cohen kappa coefficient...
April 19, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28415699/the-prognostic-value-of-histological-subtype-in-patients-with-metastatic-bladder-cancer
#15
Cheng Chen, Linkun Hu, Ye Chen, Jianquan Hou
We aim to evaluate the prognostic effect of the histological sub-type in patients with metastatic bladder cancer based on the Surveillance Epidemiology and End Results database. A total of 2634 eligible patients were included. The histological subtypes were: transitional cell carcinoma (TCC; 75.2%); adenocarcinoma (3.3%); squamous cell carcinoma (SQCC; 4.1%); and small cell carcinoma (4.3%). A significant association of adenocarcinoma with better survival outcomes (P < 0.015), and that of SQCC with worse outcomes (P < 0...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28377094/t-cell-target-antigens-across-major-gynecologic-cancers
#16
REVIEW
Alba Rodriguez-Garcia, Nicholas G Minutolo, John M Robinson, Daniel J Powell
Immunotherapies have achieved remarkable success in treating different forms of cancer including melanoma, non-small cell lung carcinoma, bladder cancer, synovial cell sarcoma, and multiple myeloma using immune checkpoint blockade or gene-engineered T-cells. Although gynecologic cancers have not been historically classified as immunogenic tumors, growing evidence has shown that they are in fact able to elicit endogenous antitumor immune responses suggesting that patients with these cancers may benefit from immunotherapy...
April 2, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28356972/wild-type-p53-induced-phosphatase-1-is-a-prognostic-marker-and-therapeutic-target-in-bladder-transitional-cell-carcinoma
#17
Zhi-Peng Wang, Shu-Yuan Chen, Ye Tian
Wild-type p53-induced phosphatase (Wip1) is an established oncogene and is associated with development of multiple forms of human cancer. However, the expression and role of Wip1 in human bladder transitional cell carcinoma (TCC) remains to be elucidated. In the present study, immunohistochemistry demonstrated that Wip1 was overexpressed in bladder TCC tissues compared with corresponding normal bladder tissues in 106 bladder TCC cases (P<0.0001). Furthermore, high expression levels of Wip1 were significantly associated with increasing tumor size (P=0...
February 2017: Oncology Letters
https://www.readbyqxmd.com/read/28356947/downregulation-of-feline-sarcoma-related-protein-inhibits-cell-migration-invasion-and-epithelial-mesenchymal-transition-via-the-erk-ap-1-pathway-in-bladder-urothelial-cell-carcinoma
#18
Xudong Hu, Zhiqiang Zhang, Zhaofeng Liang, Dongdong Xie, Tao Zhang, Dexin Yu, Caiyun Zhong
Feline sarcoma-related protein (Fer) is a nuclear and cytoplasmic non-receptor protein tyrosine kinase and Fer overexpression is associated with various biological processes. However, the clinicopathological characteristics and molecular mechanisms of Fer expression in bladder urothelial cell carcinoma (UCC) have yet to be elucidated. The present study demonstrated that Fer was significantly upregulated in bladder UCC tissues and cell lines. A clinicopathological analysis suggested that Fer expression was significantly associated with tumor stage, histological grade and lymph node status, and Fer expression was a prognostic factor for overall survival in a multivariate analysis...
February 2017: Oncology Letters
https://www.readbyqxmd.com/read/28334324/understanding-the-genetic-landscape-of-small-cell-carcinoma-of-the-urinary-bladder-and-implications-for-diagnosis-prognosis-and-treatment-a-review
#19
Erik J Kouba, Liang Cheng
Importance: Small cell carcinoma of the urinary bladder is a rare and aggressive neuroendocrine tumor of the urinary bladder. Although research has been performed since the first case was reported in 1981, most of our understanding of the disease treatments has been extrapolated from small cell carcinoma of the lung. However, current data on patient survival have been stagnant. Observations: With the advent of advanced molecular diagnostic methods, a new potential for understanding the origin and treatment of small cell carcinoma of the urinary bladder has become evident...
March 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28314306/expression-of-indoleamine-2-3-dioxygenase-gene-is-a-feature-of-poorly-differentiated-non-muscle-invasive-urothelial-cell-bladder-carcinomas
#20
Tvrtko Hudolin, Chantal Mengus, Julie Coulot, Zeljko Kastelan, Ahmad El-Saleh, Giulio C Spagnoli
AIM: To evaluate indoleamine 2,3-dioxygenase (IDO) gene expression in non-muscle-invasive urothelial cell bladder carcinoma (NMIBC). PATIENTS AND METHODS: Seventy-four patients undergoing surgical treatment for NMIBC were enrolled in the study. IDO gene expression was assessed by quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS: IDO gene expression was detectable significantly more frequently (48/74, 64.86% vs. 5/21, 23...
March 2017: Anticancer Research
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