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https://www.readbyqxmd.com/read/27933273/prognostic-value-of-plasma-and-urine-glycosaminoglycan-scores-in-clear-cell-renal-cell-carcinoma
#1
Francesco Gatto, Marco Maruzzo, Cristina Magro, Umberto Basso, Jens Nielsen
BACKGROUND: The prognosis of metastatic clear cell renal cell carcinoma (ccRCC) vastly improved since the introduction of antiangiogenic-targeted therapy. However, it is still unclear which biological processes underlie ccRCC aggressiveness and affect prognosis. Here, we checked whether a recently discovered systems biomarker based on plasmatic or urinary measurements of glycosaminoglycans (GAGs) aggregated into diagnostic scores correlated with ccRCC prognosis. METHODS: Thirty-one patients with a diagnosis of ccRCC (23 metastatic) were prospectively enrolled, and their urine and plasma biomarker scores were correlated to progression-free survival (PFS) and overall survival (OS) as either a dichotomous ("Low" vs...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27932890/high-expression-of-hmga2-predicts-poor-survival-in-patients-with-clear-cell-renal-cell-carcinoma
#2
Ning Na, Tujie Si, Zhengyu Huang, Bin Miao, Liangqing Hong, Heng Li, Jiang Qiu, Jianguang Qiu
High-mobility group AT-hook 2 (HMGA2) is involved in a wide spectrum of biological processes and is upregulated in several tumors, but its role in renal carcinoma remains unclear. The aim of this study was to examine the expression of HMGA2 and its relationship to the overall survival (OS) of patients with non-metastatic clear cell renal cell carcinoma (ccRCC) following surgery. The expression of HMGA2 was evaluated retrospectively by immunohistochemistry (IHC) in 162 patients with ccRCC who underwent nephrectomy in 2003 and 2004...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27911274/high-expression-of-mucin13-associates-with-grimmer-postoperative-prognosis-of-patients-with-non-metastatic-clear-cell-renal-cell-carcinoma
#3
Zhiying Xu, Yidong Liu, Yuanfeng Yang, Jieti Wang, Guodong Zhang, Zheng Liu, Hangcheng Fu, Zewei Wang, Haiou Liu, Jiejie Xu
BACKGROUND: Mucin13 (MUC13) is a transmembrane glycoprotein that is aberrantly expressed in ovarian and gastro-intestinal tumors, but its role in renal cell carcinoma remains elusive. The purpose of this study is to evaluate the prognostic value of MUC13 expression in patients with non-metastatic clear cell renal cell carcinoma (ccRCC) after surgical resection. RESULTS: MUC13 high expression was associated with high Fuhrman grade (p < 0.001), high SSIGN score (p = 0...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27909050/notch-pathway-is-activated-via-genetic-and-epigenetic-alterations-and-is-a-therapeutic-target-in-clear-cell-renal-cancer
#4
Tushar D Bhagat, Yiyu Zou, Shizeng Huang, Jihwan Park, Matthew B Palmer, Caroline Hu, Wejuan Li, Niraj Shenoy, Orsolya Giricz, Gaurav Choudhary, Yiting Yu, Yi-An Ko, Maria C Izquierdo, Ae Seo Deok Park, Nishanth Vallumsetla, Remi Laurence, Robert Lopez, Masako Suzuki, James Pullman, Justin Kaner, Benjamin Gartrell, A Ari Hakimi, John M Greally, Bharvin Patel, Karim Benhadji, Kith Pradhan, Amit Verma, Katalin Susztak
Clear cell renal cell carcinoma (CCRCC) is an incurable malignancy in advanced stages and needs newer therapeutic targets. Transcriptomic analysis of CCRCCs and matched microdissected renal tubular controls revealed overexpression of NOTCH ligands and receptors in tumor tissues. Examination of the TCGA RNA-seq dataset also revealed widespread activation of NOTCH pathway in a large cohort of CCRCC samples. Samples with NOTCH pathway activation were also clinically distinct and were associated with better overall survival...
December 1, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27907930/microrna-profiling-in-clear-cell-renal-cell-carcinoma-tissues-potentially-links-tumorigenesis-and-recurrence-with-obesity
#5
X Shu, M A Hildebrandt, J Gu, N M Tannir, S F Matin, J A Karam, C G Wood, X Wu
BACKGROUND: Twenty to 40% localised RCC patients may experience recurrence after curative surgery. Limited miRNA predictors have been identified for ccRCC recurrence. METHODS: Through a multi-phase study design, we analysed miRNAs in tissues obtained from 203 ccRCC patients. Paired t-test was used for tumour-normal comparisons and Cox regression model was performed to compute hazard ratios (HRs) and corresponding 95% CIs. RESULTS: A 17-miRNA signature was identified that can concordantly classify >95% of tumour/adjacent normal samples...
December 1, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27906674/nuclear-localization-of-the-ck2%C3%AE-subunit-correlates-with-poor-prognosis-in-clear-cell-renal-cell-carcinoma
#6
Maj Rabjerg, Barbara Guerra, Aida Oliván-Viguera, Minne Line Nedergaard Mikkelsen, Ralf Köhler, Olaf-Georg Issinger, Niels Marcussen
Protein kinase CK2α, one of the two catalytic isoforms of the protein kinase CK2 has been shown to contribute to tumor development, tumor proliferation and suppression of apoptosis in various malignancies. We conducted this study to investigate CK2 expression in different subtypes of Renal Cell Carcinoma (RCC) and in the benign oncocytoma. qRT-PCR, immunohistochemistry and Western blot analyses revealed that CK2α expression was significantly increased at the mRNA and protein levels in clear cell RCC (ccRCC)...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27904923/can-diffusion-weighted-magnetic-resonance-imaging-of-clear-cell-renal-carcinoma-predict-low-from-high-nuclear-grade-tumors
#7
Carolina Parada Villavicencio, Robert J Mc Carthy, Frank H Miller
OBJECTIVE: To assess the diagnostic performance of the apparent diffusion coefficient (ADC) in predicting the Fuhrman nuclear grading of clear cell renal cell carcinomas (ccRCC). MATERIALS AND METHODS: A total of 129 patients who underwent partial and radical nephrectomies with pathology-proven ccRCC were retrospectively evaluated. Histopathological characteristics and nuclear grades were analyzed. In addition, conventional magnetic resonance imaging (MRI) features were assessed in consensus by two radiologists to discriminate nuclear grading...
December 1, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27899233/clear-cell-type-a-and-b-molecular-subtypes-in-metastatic-clear-cell-renal-cell-carcinoma-tumor-heterogeneity-and-aggressiveness
#8
Daniel J Serie, Richard W Joseph, John C Cheville, Thai H Ho, Mansi Parasramka, Tracy Hilton, R Houston Thompson, Bradley C Leibovich, Alexander S Parker, Jeanette E Eckel-Passow
BACKGROUND: Intratumor molecular heterogeneity has been reported for primary clear cell renal cell carcinoma (ccRCC) tumors; however, heterogeneity in metastatic ccRCC tumors has not been explored. OBJECTIVE: To evaluate intra- and intertumor molecular heterogeneity in resected metastatic ccRCC tumors. DESIGN, SETTING, AND PARTICIPANTS: We identified 111 patients who had tissue available from their primary tumor and at least one metastasis...
November 26, 2016: European Urology
https://www.readbyqxmd.com/read/27896514/tumor-infiltrating-mast-cells-tims-confers-a-marked-survival-advantage-in-nonmetastatic-clear-cell-renal-cell-carcinoma
#9
Hangcheng Fu, Yu Zhu, Yiwei Wang, Zheng Liu, Junyu Zhang, Zewei Wang, Huyang Xie, Bo Dai, Jiejie Xu, Dingwei Ye
PURPOSE: The role played by the innate immune system in determining the clinical outcome of clear-cell renal cell carcinoma (ccRCC) was still blurred. This study was designed to investigate the prognostic significance of tumor infiltrating mast cells (TIMs) in ccRCC. METHODS: The study retrospectively enrolled a training set (474 patients) and a validation set (188 patients) with nonmetastasis (pT1-4N0M0) ccRCC from two institutional medical centers of China. TIMs was evaluated by immunohistochemical staining of tryptase and its association with clinicopathologic features and prognosis were evaluated...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27886176/a-feed-forward-loop-between-lncarsr-and-yap-activity-promotes-expansion-of-renal-tumour-initiating-cells
#10
Le Qu, Zhenjie Wu, Yaoming Li, Zhipeng Xu, Bing Liu, Feng Liu, Yi Bao, Dengshuang Wu, Jiayi Liu, Anbang Wang, Xiaoyuan Chu, Yinghao Sun, Cheng Chen, Zhengyu Zhang, Linhui Wang
Renal tumour-initiating cells (T-ICs) contribute to tumorigenesis, progression and drug resistance of renal cell carcinoma (RCC). However, the underlying mechanism for the propagation of renal T-ICs remains unclear. Here we show that long non-coding RNA lncARSR is upregulated in primary renal T-ICs and associated with a poor prognosis of clear cell RCCs (ccRCC). Knockdown of lncARSR attenuates the self-renewal, tumorigenicity and metastasis of renal T-ICs. Conversely, forced lncARSR expression enhances T-IC properties of RCC cells...
November 25, 2016: Nature Communications
https://www.readbyqxmd.com/read/27883021/identification-of-aberrant-trna-halves-expression-patterns-in-clear-cell-renal-cell-carcinoma
#11
Malin Nientiedt, Mario Deng, Doris Schmidt, Sven Perner, Stefan C Müller, Jörg Ellinger
Small non-coding RNAs (sncRNA; <200 nt) regulate various cellular processes and modify gene expression. Under nutritional, biological or physiochemical stress some mature sncRNAs (e.g. tRNAs) are cleaved into halves (30-50 nt) and smaller fragments (18-22 nt); the significance and functional role of these tRNA fragments is unknown, but their existence has been linked to carcinogenesis. We used small RNA sequencing to determine the expression of sncRNAs. Subsequently the findings were validated for miR-122-5p, miR-142-3p and 5'tRNA4-Val-AAC using qPCR...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27879367/alternative-splicing-of-ezh2-pre-mrna-by-sf3b3-contributes-to-the-tumorigenic-potential-of-renal-cancer
#12
Ke Chen, Haibing Xiao, Jin Zeng, Gan Yu, Hui Zhou, Chunhua Huang, Weimin Yao, Wei Xiao, Junhui Hu, Wei Guan, Lily Wu, Jiaoti Huang, Qihong Huang, Hua Xu, Zhangqun Ye
PURPOSE: Deregulation or mutation of the EZH2 gene causes various tumors, including ccRCC. Although several splice variants of EZH2 have been identified, little is known about how EZH2 splicing is regulated or the contribution of alternative splicing to its pro-tumorigenic functions. EXPERIMENTAL DESIGN: We conducted RT-PCR, western blot and immunohistochemistry techniques, to examine EZH2 and its alternative splicing transcript expression in renal cancer tissue and renal cancer cell lines...
November 22, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27877211/the-three-gene-signature-in-urinary-extracellular-vesicles-from-patients-with-clear-cell-renal-cell-carcinoma
#13
Giuseppe De Palma, Fabio Sallustio, Claudia Curci, Vanessa Galleggiante, Monica Rutigliano, Grazia Serino, Pasquale Ditonno, Michele Battaglia, Francesco P Schena
Renal cell carcinoma (RCC) accounts for more than 2% of neoplasias in humans worldwide. Renal biopsy is the gold standard among the diagnostic procedures, but it is invasive and not suitable for all patients. Therefore, new reliable and non-invasive biomarkers for RCC are required. Secretion of extracellular vesicles (EVs), containing RNA molecules that can be transferred between cells, appears to be a common feature of neoplasia. Consistently, cancer-derived EVs are increased in blood and urine. Therefore, urinary samples may be a non-invasive approach for discovering new diagnostic biomarkers...
2016: Journal of Cancer
https://www.readbyqxmd.com/read/27874173/identification-and-validation-of-an-8-gene-expression-signature-for-predicting-high-fuhrman-grade-renal-cell-carcinoma
#14
Fangning Wan, Yao Zhu, Chengtao Han, Qinghua Xu, Junlong Wu, Bo Dai, Hailiang Zhang, Guohai Shi, Weijie Gu, Dingwei Ye
Clear cell renal cell carcinoma (ccRCC) is a malignancy with heterogeneous outcomes. Currently, renal mass biopsies are commonly employed to extract disease characteristics and aid prognosis. Although the pathological diagnosis of malignant disease is accurate in contemporary reports, the classification of Fuhrman grade using biopsy specimens is still far from promising. To generate a gene signature to distinguish high-grade ccRCC, we used the Cancer Genome Atlas (TCGA) database to develop a gene expression signature for distinguishing high-grade (G3/4) from low-grade (G1/2) disease...
November 22, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27861513/high-expression-of-stearoyl-coa-desaturase-1-predicts-poor-prognosis-in-patients-with-clear-cell-renal-cell-carcinoma
#15
Jianfeng Wang, Yunze Xu, Liangsong Zhu, Yun Zou, Wen Kong, Baijun Dong, Jiwei Huang, Yonghui Chen, Wei Xue, Yiran Huang, Jin Zhang
Stearoyl-CoA desaturase 1 (SCD1), the rate-limiting enzymes in the biosynthesis of monounsaturated fatty acids from saturated fatty acids, have been gradually recognized as a potential therapeutic target for various malignancies, particularly in clear-cell renal cell carcinoma (ccRCC). However, the prognostic value of SCD1 in ccRCC is still unknown. The aim of this study is to evaluate the clinical significance of SCD1 expression in patients with ccRCC. SCD1 expression in tumor tissues obtained from 359 patients who underwent nephrectomy for ccRCC are retrospectively assessed...
2016: PloS One
https://www.readbyqxmd.com/read/27859853/monoexponential-biexponential-and-stretched-exponential-diffusion-weighted-imaging-models-quantitative-biomarkers-for-differentiating-renal-clear-cell-carcinoma-and-minimal-fat-angiomyolipoma
#16
Haojie Li, Lili Liang, Anqin Li, Yao Hu, Daoyu Hu, Zhen Li, Ihab R Kamel
PURPOSE: To determine the utility of various diffusion parameters obtained from monoexponential, biexponential, and stretched exponential diffusion-weighted imaging (DWI) models in differentiating between minimal fat angiomyolipoma (MFAML) and clear cell renal cell carcinoma (ccRCC). MATERIALS AND METHODS: One hundred thirty-one patients with pathologically confirmed MFAML (n = 27) or ccRCC (n = 104) underwent multi-b value DWI (0∼1700 s/mm(2) ) imaging at 3...
November 10, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27855702/tumor-immune-microenvironment-characterization-in-clear-cell-renal-cell-carcinoma-identifies-prognostic-and-immunotherapeutically-relevant-messenger-rna-signatures
#17
Yasin Şenbabaoğlu, Ron S Gejman, Andrew G Winer, Ming Liu, Eliezer M Van Allen, Guillermo de Velasco, Diana Miao, Irina Ostrovnaya, Esther Drill, Augustin Luna, Nils Weinhold, William Lee, Brandon J Manley, Danny N Khalil, Samuel D Kaffenberger, Yingbei Chen, Ludmila Danilova, Martin H Voss, Jonathan A Coleman, Paul Russo, Victor E Reuter, Timothy A Chan, Emily H Cheng, David A Scheinberg, Ming O Li, Toni K Choueiri, James J Hsieh, Chris Sander, A Ari Hakimi
BACKGROUND: Tumor-infiltrating immune cells have been linked to prognosis and response to immunotherapy; however, the levels of distinct immune cell subsets and the signals that draw them into a tumor, such as the expression of antigen presenting machinery genes, remain poorly characterized. Here, we employ a gene expression-based computational method to profile the infiltration levels of 24 immune cell populations in 19 cancer types. RESULTS: We compare cancer types using an immune infiltration score and a T cell infiltration score and find that clear cell renal cell carcinoma (ccRCC) is among the highest for both scores...
November 17, 2016: Genome Biology
https://www.readbyqxmd.com/read/27853915/renal-cell-carcinoma-applicability-of-the-apparent-coefficient-of-the-diffusion-weighted-estimated-by-mri-for-improving-their-differential-diagnosis-histologic-subtyping-and-differentiation-grade
#18
Yulian Mytsyk, Ihor Dutka, Yuriy Borys, Iryna Komnatska, Iryna Shatynska-Mytsyk, Ammad Ahmad Farooqi, Katarina Gazdikova, Martin Caprnda, Luis Rodrigo, Peter Kruzliak
BACKGROUND: Renal cell carcinoma (RCC) represents the most common malignant epithelial neoplasm of the kidney. Accurate assessment of the renal masses, defining the histologic subtype and the grade of differentiation of the tumor, is vital to ensure an adequate case management as well as for staging and prognosis. Recently, diffusion-weighted imaging (DWI) magnetic resonance imaging (MRI) tends to be increasingly appealing for the clinicians as an imaging procedure of choice for the diagnosis and staging of the RCC, which is predetermined by several advantages over CT...
November 16, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27847998/quantitative-iodine-content-threshold-for-discrimination-of-renal-cell-carcinomas-using-rapid-kv-switching-dual-energy-ct
#19
Jessica G Zarzour, Desmin Milner, Roberto Valentin, Bradford E Jackson, Jennifer Gordetsky, Janelle West, Soroush Rais-Bahrami, Desiree E Morgan
PURPOSE: Determine iodine content threshold discriminating papillary renal cell carcinomas (pRCC) from complex cysts (CCs) using rapid kV-switching dual-energy CT (rsDECT). MATERIALS AND METHODS: IRB-approved retrospective study of 72 consecutive patients with pathologic diagnosis of renal cell carcinoma, who underwent rsDECT from 2011 to 2015. Controls included consecutive patients with CC during same period. Iodine content of each pRCC (n = 27) was measured on rsDECT workstation for arterial (n = 15) or nephrographic phase (n = 12), and compared to iodine content for clear cell renal cell carcinomas (ccRCC, n = 46) and complex cysts (n = 54)...
November 16, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27845902/systematic-expression-analysis-of-the-mitochondrial-complex-iii-subunits-identifies-uqcrc1-as-biomarker-in-clear-cell-renal-cell-carcinoma
#20
Jörg Ellinger, Arabella Gromes, Mirjam Poss, Maria Brüggemann, Doris Schmidt, Nadja Ellinger, Yuri Tolkach, Dimo Dietrich, Glen Kristiansen, Stefan C Müller
Mitochondrial dysfunction is common in cancer, and the mitochondrial electron transport chain is often affected in carcinogenesis. So far, few is known about the expression of the mitochondrial complex III (ubiquinol-cytochrome c reductase complex) subunits in clear cell renal cell carcinoma (ccRCC). In this study, the NextBio database was used to determine an expression profile of the mitochondrial complex III subunits based on published microarray studies. We observed that five out of 11 subunits of the complex III were downregulated in at least three microarray studies...
November 10, 2016: Oncotarget
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