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Papillary renal cell

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https://www.readbyqxmd.com/read/28086852/pd-l1-expression-in-papillary-renal-cell-carcinoma
#1
Takanobu Motoshima, Yoshihiro Komohara, Chaoya Ma, Arni Kusuma Dewi, Hirotsugu Noguchi, Sohsuke Yamada, Toshiyuki Nakayama, Shohei Kitada, Yoshiaki Kawano, Wataru Takahashi, Masaaki Sugimoto, Motohiro Takeya, Naohiro Fujimoto, Yoshinao Oda, Masatoshi Eto
BACKGROUND: The immune escape or tolerance of cancer cells is considered to be closely involved in cancer progression. Programmed death-1 (PD-1) is an inhibitory receptor expressed on activating T cells, and several types of cancer cells were found to express PD-1 ligand 1 (PD-L1) and ligand 2 (PD-L2). METHODS: In the present study, we investigated PD-L1/2 expression in papillary renal cell carcinoma (pRCC). RESULT: We found PD-L1 expression in 29 of 102 cases, but no PD-L2 expression was seen...
January 13, 2017: BMC Urology
https://www.readbyqxmd.com/read/28072975/-molecular-features-of-metanephric-adenoma-and-their-values-in-differential-diagnosis
#2
X Wang, S S Shi, W R Yang, S B Ye, R Li, H H Ma, R S Zhang, Z F Lu, X J Zhou, Q Rao
Objective: To study the molecular features of metanephric adenoma (MA) and discuss their values in differential diagnosis. Methods: BRAF V600E immunohistochemistry (IHC) using the mutation-specific VE1 monoclonal antibody and Sanger sequencing of BRAF mutations were performed on 21 MAs, 16 epithelial-predominant Wilms tumors (e-WT) and 20 the solid variant of papillary renal cell carcinomas (s-PRCC) respectively. p16 protein was detected by IHC also. Fluorescence in situ hybridization (FISH) analyses using centromeric probes for chromosome 7 and 17 were performed on the three renal tumors in parallel...
January 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28061437/keap1-nrf2-pathway-in-kidney-cancer-frequent-methylation-of-keap1-gene-promoter-in-clear-renal-cell-carcinoma
#3
Federico Pio Fabrizio, Manuela Costantini, Massimiliano Copetti, Annamaria la Torre, Angelo Sparaneo, Andrea Fontana, Luana Poeta, Michele Gallucci, Steno Sentinelli, Paolo Graziano, Paola Parente, Vincenzo Pompeo, Laura De Salvo, Giuseppe Simone, Rocco Papalia, Francesco Picardo, Teresa Balsamo, Gerardo Paolo Flammia, Domenico Trombetta, Angela Pantalone, Klaas Kok, Ferronika Paranita, Lucia Anna Muscarella, Vito Michele Fazio
The Keap1/Nrf2 pathway is a master regulator of the cellular redox state through the induction of several antioxidant defence genes implicated in chemotherapeutic drugs resistance of tumor cells. An increasing body of evidence supports a key role for Keap1/Nrf2 pathway in kidney diseases and renal cell carcinoma (RCC), but data concerning the molecular basis and the clinical effect of its deregulation remain incomplete.Here we present a molecular profiling of the KEAP1 and NFE2L2 genes in five different Renal Cell Carcinoma histotypes by analysing 89 tumor/normal paired tissues (clear cell Renal Carcinoma, ccRCCs; Oncocytomas; Papillary Renal Cell Carcinoma Type 1, PRCC1; Papillary Renal Cell Carcinoma Type 2, PRCC2; and Chromophobe Cell Carcinoma)...
4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28058005/multilocular-cystic-renal-cell-carcinoma-in-a-23-year-old-female
#4
Shivakumarswamy Udasimath, J Niranjan, R Puruhotham, K R Nagesha
Multilocular cystic renal cell carcinoma (MCRCC) has been identified as a separate subtype of renal cell carcinoma (RCC) in the 2004 World Health Organization classification of adult renal tumors. MCRCC represents a rare variant of clear cell RCC. The common age group for this tumor is between 40 and 60 years. In our case, MCRCC occurred at the age of 23 years in a female patient. We report this case because of its rarity in this age group, sex, good prognosis, and also to avoid a misdiagnosis as conventional clear cell RCC...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28056882/functional-significance-of-cd105-positive-cells-in-papillary-renal-cell-carcinoma
#5
Damian Matak, Klaudia K Brodaczewska, Cezary Szczylik, Irena Koch, Adam Myszczyszyn, Monika Lipiec, Slawomir Lewicki, Lukasz Szymanski, Robert Zdanowski, Anna M Czarnecka
BACKGROUND: CD105 was postulated as a renal cell carcinoma (RCC) stem cell marker, and CD133 as a putative RCC progenitor. Hypoxia, a natural microenvironment that prevails in tumors, was also incorporated into the study, especially in terms of the promotion of hypothetical stem-like cell properties. METHODS: Within this study, we verify the existence of CD105+ and CD133+ populations in selected papillary subtype RCC (pRCC) cell lines. Both populations were analyzed for correlation with stem-like cell properties, such as stemness gene expression, and sphere and colony formation...
January 5, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28048071/su-f-r-39-effects-of-radiation-dose-reduction-on-renal-cell-carcinoma-discrimination-using-multi-phasic-ct-imaging
#6
M Wahi-Anwar, S Young, P Lo, S Raman, H Kim, M Brown, M McNitt-Gray, H Coy, D Ashen-Garry, E Pace-Soler
PURPOSE: A method to discriminate different types of renal cell carcinoma (RCC) was developed using attenuation values observed in multiphasic contrast-enhanced CT. This work evaluates the sensitivity of this RCC discrimination task at different CT radiation dose levels. METHODS: We selected 5 cases of kidney lesion patients who had undergone four-phase CT scans covering the abdomen to the lilac crest. Through an IRB-approved study, the scans were conducted on 64-slice CT scanners (Definition AS/Definition Flash, Siemens Healthcare) using automatic tube-current modulation (TCM)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28038707/cystic-and-necrotic-papillary-renal-cell-carcinoma-prognosis-morphology-immunohistochemical-and-molecular-genetic-profile-of-10-cases
#7
Kvetoslava Peckova, Petr Martinek, Kristyna Pivovarcikova, Tomas Vanecek, Reza Alaghehbandan, Kristyna Prochazkova, Delia Perez Montiel, Milan Hora, Faruk Skenderi, Monika Ulamec, Pavla Rotterova, Ondrej Daum, Jiri Ferda, Whitney Davidson, Ondrej Ondic, Magdalena Dubova, Michal Michal, Ondrej Hes
Conflicting data have been published on the prognostic significance of tumor necrosis in papillary renal cell carcinoma (PRCC). Although the presence of necrosis is generally considered an adverse prognostic feature in PRCC, we report a cohort of 10 morphologically distinct cystic and extensively necrotic PRCC with favorable biological behavior. Ten cases of type 1 PRCC with a uniform morphologic pattern were selected from the 19 500 renal tumors, of which 1311 were PRCCs in our registry. We focused on precise morphologic diagnosis supported by immunohistochemical and molecular-genetic analysis...
February 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28032311/prognostic-factors-for-renal-cell-carcinoma-subtypes-diagnosed-according-to-the-2016-who-renal-tumor-classification-a-study-involving-928-patients
#8
Levente Kuthi, Alex Jenei, Adrienn Hajdu, István Németh, Zoltán Varga, Zoltán Bajory, László Pajor, Béla Iványi
The morphotype and grade of renal cell carcinoma (RCC) in 928 nephrectomies were reclassified according to the 2016 WHO classification in order to analyze the distribution and outcomes of RCC subtypes in Hungary, to assess whether microscopic tumor necrosis is an independent prognostic factor in clear cell RCC, and to study whether a two-tiered grading (low/high) for clear cell and papillary RCC provides similar prognostic information to that of the four-tiered ISUP grading system. 83.4% of the cohort were clear cell, 6...
December 28, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28029648/genomic-differences-between-black-and-white-patients-implicate-a-distinct-immune-response-to-papillary-renal-cell-carcinoma
#9
David J Paulucci, John P Sfakianos, Anders J Skanderup, Kathleen Kan, Che-Kai Tsao, Matthew D Galsky, A Ari Hakimi, Ketan K Badani
Significant disparities in survival, incidence and possibly response to current therapies exist between black and white patients with renal cell carcinoma (RCC). Recent genomic evidence to account for these disparities has been reported for clear cell RCC. However, racial disparities at the genomic level for papillary RCC (pRCC) which is a genetically distinct and less responsive histologic subtype of RCC have not been reported. Using The Cancer Genome Atlas (TCGA) data, the present study assessed gene-level expression, somatic mutation and pathway differences between 58 black and 58 white patients with pRCC propensity matched on age, gender and pathologic T stage...
December 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/28028797/glut1-mct1-4-and-cd147-overexpression-supports-the-metabolic-reprogramming-in-papillary-renal-cell-carcinoma
#10
L M C A Almeida, R Silva, B Cavadas, J Lima, L Pereira, P Soares, M Sobrinho-Simões, J M Lopes, V Máximo
Papillary Renal Cell carcinoma (pRCC) is the second most common type of RCC, accounting for about 15% of all RCCs. Surgical excision is the main treatment option. Still, 10 - 15 % of clinically localized tumours will recur and/or develop metastasis early after surgery, and no reliable prognostic biomarkers are available to identify them. It is known that pRCC cells rely on high rates of aerobic glycolysis, characterized by the up-regulation of many proteins and enzymes related with the glycolytic pathway. However, a metabolic signature enabling the identification of advanced pRCC tumours remains to be discovered...
December 28, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/28025654/subjective-and-objective-heterogeneity-scores-for-differentiating-small-renal-masses-using-contrast-enhanced-ct
#11
Shuai Leng, Naoki Takahashi, Daniel Gomez Cardona, Kazuhiro Kitajima, Brian McCollough, Zhoubo Li, Akira Kawashima, Bradley C Leibovich, Cynthia H McCollough
PURPOSE: The aim of this study was to assess the effect of denoising on objective heterogeneity scores and its diagnostic capability for the diagnosis of angiomyolipoma (AML) and renal cell carcinoma (RCC). MATERIALS AND METHODS: A total of 158 resected renal masses ≤4 cm [98 clear cell (cc) RCCs, 36 papillary (pap)-RCCs, and 24 AMLs] from 139 patients were evaluated. A representative contrast-enhanced computed tomography (CT) image for each mass was selected by a genitourinary radiologist...
December 26, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/28024951/role-of-molecular-profiling-in-diagnosis-of-papillary-renal-cell-cancer-presenting-as-cancer-of-unknown-primary-site
#12
Misako Nagasaka, Geetika Kukreja, Eman Abdulfatah, Ulka Vaishampayan, Ammar Sukari
No abstract text is available yet for this article.
December 1, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28009604/renal-cell-carcinoma-with-chromosome-6p-amplification-including-the-tfeb-gene-a-novel-mechanism-of-tumor-pathogenesis
#13
Sean R Williamson, David J Grignon, Liang Cheng, Laura Favazza, Dibson D Gondim, Shannon Carskadon, Nilesh S Gupta, Dhananjay A Chitale, Shanker Kalyana-Sundaram, Nallasivam Palanisamy
Amplification of chromosome 6p has been implicated in aggressive behavior in several cancers, but has not been characterized in renal cell carcinoma (RCC). We identified 9 renal tumors with amplification of chromosome 6p including the TFEB gene, 3 by fluorescence in situ hybridization, and 6 from the Cancer Genome Atlas (TCGA) databases. Patients' ages were 28 to 78 years (median, 61 y). Most tumors were high stage (7/9 pT3a, 2/9 pN1). Using immunohistochemistry, 2/4 were positive for melanocytic markers and cathepsin K...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27993815/differential-gene-expression-profiling-of-matched-primary-renal-cell-carcinoma-and-metastases-reveals-upregulation-of-extracellular-matrix-genes
#14
T H Ho, D J Serie, M Parasramka, J C Cheville, B M Bot, W Tan, L Wang, R W Joseph, T Hilton, B C Leibovich, A S Parker, J E Eckel-Passow
BACKGROUND: The majority of renal cell carcinoma (RCC) studies analyze primary tumors, and the corresponding results are extrapolated to metastatic RCC tumors. However, it is unknown if gene expression profiles from primary RCC tumors differs from patient-matched metastatic tumors. Thus, we sought to identify differentially expressed genes between patient-matched primary and metastatic RCC tumors in order to understand the molecular mechanisms underlying the development of RCC metastases...
December 19, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27989785/prognostic-value-of-vascular-endothelial-growth-factor-vegf-vegf-receptor-2-platelet-derived-growth-factor-%C3%AE-pdgf-%C3%AE-and-pdgf-%C3%AE-receptor-expression-in-papillary-renal-cell-carcinoma
#15
Myong Kim, Mooyoung Sohn, Myungsun Shim, Seung-Kwon Choi, Myungchan Park, Eunna Kim, Heounjeong Go, Yangsoon Park, Yong Mee Cho, Jae Y Ro, In Gab Jeong, Cheryn Song, Jun Hyuk Hong, Choung-Soo Kim, Hanjong Ahn
The Prognostic value of the expression of vascular endothelial growth factor (VEGF), VEGF receptor 2 (VEGFR2), platelet-derived growth factor (PDGF)-β, and PDGF receptor (PDGFR)-β in papillary renal cell carcinoma (pRCC) is unknown. A total of 145 patients, who were confirmed to have pRCC, were analyzed. Expression levels of molecular markers were assessed via immunohistochemistry. The median follow-up period for all patients was 52.0 (interquartile range, 34.5-90.5) months. Among the cohort of 145 patients, high VEGF expression was observed in 100 (69...
December 15, 2016: Human Pathology
https://www.readbyqxmd.com/read/27984237/rhabdoid-and-undifferentiated-phenotype-in-renal-cell-carcinoma-analysis-of-32-cases-indicating-a-distinctive-common-pathway-of-dedifferentiation-frequently-associated-with-swi-snf-complex-deficiency
#16
Abbas Agaimy, Liang Cheng, Lars Egevad, Bernd Feyerabend, Ondřej Hes, Bastian Keck, Stefano Pizzolitto, Stefano Sioletic, Bernd Wullich, Arndt Hartmann
Undifferentiated (anaplastic) and rhabdoid cell features are increasingly recognized as adverse prognostic findings in renal cell carcinoma (RCC), but their molecular pathogenesis has not been studied sufficiently. Recent studies identified alterations in the Switch Sucrose nonfermentable (SWI/SNF) chromatin remodeling complex as molecular mechanisms underlying dedifferentiation and rhabdoid features in carcinomas of different organs. We herein have analyzed 32 undifferentiated RCCs having in common an undifferentiated (anaplastic) phenotype, prominent rhabdoid features, or both, irrespective of the presence or absence of conventional RCC component...
December 14, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27979566/re-clinically-localized-type-1-and-2-papillary-renal-cell-carcinomas-have-similar-survival-outcomes-following-surgery
#17
M Pilar Laguna
No abstract text is available yet for this article.
January 2017: Journal of Urology
https://www.readbyqxmd.com/read/27934879/xp11-2-translocation-renal-cell-carcinoma-with-nono-tfe3-gene-fusion-morphology-prognosis-and-potential-pitfall-in-detecting-tfe3-gene-rearrangement
#18
Qiu-Yuan Xia, Zhe Wang, Ni Chen, Hua-Lei Gan, Xiao-Dong Teng, Shan-Shan Shi, Xuan Wang, Xue Wei, Sheng-Bing Ye, Rui Li, Heng-Hui Ma, Zhen-Feng Lu, Xiao-Jun Zhou, Qiu Rao
Xp11 translocation renal cell carcinomas are characterized by several different translocations involving the TFE3 gene. Tumors with different specific gene fusions may have different clinicopathological manifestations. Fewer than 10 renal cell carcinoma cases with NONO-TFE3 have been described. Here we examined eight additional cases of this rare tumor using clinicopathological, immunohistochemical, and molecular analyses. The male-to-female ratio of our study cohort was 1:1, and the median age was 30 years...
December 9, 2016: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/27931799/oncocytic-papillary-renal-cell-carcinoma-a-clinicopathological-and-genetic-analysis-and-indolent-clinical-course-in-14-cases
#19
Guiyan Han, Wenjuan Yu, Jing Chu, Yan Liu, Yanxia Jiang, Yujun Li, Wei Zhang
A sort of PRCC with distinct eosinophilic cytoplasm named Oncocytic Papillary Renal Cell Carcinoma (OPRCC) has been increasingly attracting the attention of researchers recently. However, owing to the rarity of OPRCC, the clinicopathological and genetic features of the tumor have still not been well elucidated and whether it should be regarded as an independent subtype of PRCC remains controversial. Herein, a cohort of 14 OPRCCs was studied with the aim of revealing the distinct clinicopathological features, facilitating the classification and correct diagnosis of OPRCC...
January 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27927654/expression-of-sodium-dependent-dicarboxylate-transporter-1-nadc1-slc13a2-in-normal-and-neoplastic-human-kidney
#20
Hyun-Wook Lee, Mary E Handlogten, Gunars Osis, William L Clapp, Dara N Wakefield, Jill W Verlander, I David Weiner
Regulated dicarboxylate transport is critical for acid-base homeostasis, prevention of calcium nephrolithiasis, regulation of collecting duct sodium chloride transport and the regulation of blood pressure. Although luminal dicarboxylate reabsorption via NaDC1 (SLC13A2) is believed to be the primary mechanism regulating renal dicarboxylate transport, the specific localization of NaDC1 in the human kidney is currently unknown. This study's purpose was to determine NaDC1's expression in normal and neoplastic human kidneys...
December 7, 2016: American Journal of Physiology. Renal Physiology
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