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https://www.readbyqxmd.com/read/28927098/notch-1-is-a-valuable-therapeutic-target-against-cell-survival-and-proliferation-in-clear-cell-renal-cell-carcinoma
#1
Zhiming Zhuang, Jiangui Lin, Yiqun Huang, Tianqi Lin, Zhouda Zheng, Xudong Ma
Notch 1 is a key component of the Notch pathway, which performs a crucial role in clear cell renal cell carcinoma (CCRCC) development. The present study aimed to investigate whether Notch 1 could serve as a potential target for CCRCC treatment. Firstly, an association analysis was performed using 52 CCRCC cases and 30 normal controls. The results indicated that Notch 1 protein expression in renal tissues was closely associated with the incidence of CCRCC. In addition, higher Notch 1 expression in CCRCC tissues was positively associated with higher tumor-node-metastasis stage and Fuhrman grade, in addition to larger tumor size...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927090/downregulation-of-pdcd4-by-mir-21-suppresses-tumor-transformation-and-proliferation-in-a-nude-mouse-renal-cancer-model
#2
Haixin Yuan, Shiyong Xin, Yaoping Huang, Yingfan Bao, Hao Jiang, Liqing Zhou, Xiaoqiang Ren, Liang Li, Qian Wang, Jianguo Zhang
Programmed cell death 4 (PDCD4) is known to suppress neoplastic transformation, cell proliferation and metastasis, and to be downregulated by microRNA-21 (miR-21) in renal cell carcinoma (RCC) cell lines and tissues. The aim of the present study was to investigate the roles of and association between PDCD4 and miR-21 in a nude mouse renal cancer model. A total of 24 BALB/c male nude mice were randomly assigned into the following three groups: Negative control (NC; n=8), miR-21 inhibitor (n=8) and miR-21 mimic (n=8)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927075/tumor-initiating-cells-contribute-to-radiation-resistance-in-primary-human-renal-clear-cell-carcinomas-by-activating-the-dna-damage-checkpoint-response
#3
Bo Li, Yong-Ju Gao, Xin-Yu Wu, Jing Cui, Ye Long, Jun-Ling Xu, De-Gang Ding
The use of radiotherapy in patients with clear cell renal carcinoma (ccRCC) is predominantly limited to palliation of metastases or control of local growth, because ccRCC cells readily develop radioresistance. The mechanisms underlying ccRCC resistance remain elusive. The present study demonstrated that ccRCC cells that survive fractionated radiation treatment display tumor-initiating cell (TIC) characteristics, such as high self-renewal and tumorigenic capacities, and overexpress stemness genes. ccRCC cells that survived fractionated radiation exhibited increased activation of the DNA damage checkpoint response and G2/M phase arrest compared with sham-irradiated cells...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927054/methylation-of-stk11-promoter-is-a-risk-factor-for-tumor-stage-and-survival-in-clear-cell-renal-cell-carcinoma
#4
Fufu Zheng, Xiaoxu Yuan, Enjing Chen, Yunlin Ye, Xiaofei Li, Yuping Dai
Inactivation of tumor suppressor gene serine-threonine kinase 11 (STK11) in clear cell renal cell carcinoma (ccRCC) has been demonstrated; however, the mechanism of this inactivation remains to be investigated. To investigate whether epigenetic alteration plays a role in the inactivation of STK11 in RCC, the present study aimed to investigate the methylation status of the STK11 promoter and its association with tumor stage and survival in ccRCC patients. Paraffin-embedded specimens were obtained from 42 ccRCC patients...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28924370/kaempferol-inhibits-the-invasion-and-migration-of-renal-cancer-cells-through-the-downregulation-of-akt-and-fak-pathways
#5
Tung-Wei Hung, Pei-Ni Chen, Hsu-Chen Wu, Sheng-Wen Wu, Pao-Yu Tsai, Yih-Shou Hsieh, Horng-Rong Chang
Kaempferol, which is isolated from several natural plants, is a polyphenol belonging to the subgroup of flavonoids. Kaempferol exhibits various pharmacological activities, including anti-inflammatory, antioxidant, antimicrobial, and anticancer activities. In this study, kaempferol can significantly inhibit the invasion and migration of 786-O renal cell carcinoma (RCC) without cytotoxicity. We examined the potential mechanisms underlying its anti-invasive activities on 786-O RCC cells. Western blot was performed, and the results showed that kaempferol attenuates the manifestation of metalloproteinase-2 (MMP-2) protein and activity...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28924001/diagnosis-of-endocrine-disease-sdhx-mutations-beyond-pheochromocytomas-and-paragangliomas
#6
Massimo Mannelli, Letizia Canu, Tonino Ercolino, Elena Rapizzi, Serena Martinelli, Gabriele Parenti, Giuseppina De Filpo, Gabriella Nesi
Mutations in one of the five genes encoding the succinate dehydrogenase (SDHx) or mitochondrial complex II cause the corresponding family syndromes characterized by the occurrence of pheochromocytomas (PHEO) and paragangliomas (PGL). Recently, other solid growths, such as gastrointestinal stromal tumors (GISTs), renal cell carcinomas (RCCs) and pituitary adenomas (PAs) have been associated with these syndromes. In the absence of prospective studies assessing their frequency, at present, their occurrence seems too infrequent to suggest systematic screening for SDHx mutation carriers...
September 18, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28923700/venous-thromboembolism-risk-in-patients-with-locoregional-urothelial-tract-tumors
#7
Jorge D Ramos, Jonathan T Wingate, Roman Gulati, Elizabeth R Plimack, Lauren C Harshman, Thomas Powles, Simon J Crabb, Guenter Niegisch, Joaquim Bellmunt, Sylvain Ladoire, Ugo De Giorgi, Syed Hussain, Ajjai S Alva, Jack Baniel, Neeraj Agarwal, Jonathan E Rosenberg, Ulka N Vaishampayan, Matthew D Galsky, Evan Y Yu
BACKGROUND: Venous thromboembolism (VTE) is common in cancer patients, but there is limited data on patients with urothelial tract tumors (UTT). We previously identified several associative factors for increased VTE rates in patients with metastatic UTT. In this study, we assessed the frequency, associative factors, and impact on survival of VTE in patients with locoregional UTT. METHODS: Patients with locoregional bladder, upper urinary tract, or urethral cancer were included in this multi-center study from 29 academic institutions...
August 24, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28923648/octreotide-ameliorates-renal-ischemia-reperfusion-injury-via-antioxidation-and-anti-inflammation
#8
Z Xu, K Zhao, P Han, X Qi, W Zhang, T Niu
Oxidative stress, calcium overload, inflammation, cellular necrosis, and apoptosis are implicated in renal ischemic/reperfusion injury (RIRI). Because octreotide (OCT) is protective in retinal IRI, the effect of OCT on mouse RIRI and the mechanisms involved were investigated. The RIRI model was induced in male C57BL/6 mice, and the mice were then treated with saline or OCT. Serum and kidneys were subjected to periodic acid-Schiff staining, terminal deoxynucleotidyl transferase dUTP nick end labeling assay, enzyme-linked immunosorbent assay, western blotting, and immunohistochemistry...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923625/genitourinary-malignancies-in-transplant-or-dialysis-patients-the-frequency-of-two-newly-described-2016-world-health-organization-histopathologic-types
#9
A Billis, L L L Freitas, L B E Costa, I S Barreto, M A Asato, K S Araujo, D M Losada, A P Herculiani, G V B S Tabosa, B C Zaidan, G L P Oliveira, L Q A Bastos, R M Rocha
BACKGROUND: The aim of this study was to revise the histopathologic types of neoplasias in the genitourinary tract and determine the frequency of 2 new entities included in the 2016 book of World Health Organization classification of renal tumors. It is not established so far whether these 2 recently described tumors are the most frequent in association with end-stage kidney disease. METHODS: In a retrospective analysis, we revised the histopathologic type of 37 genitourinary tumors from 21 patients in dialysis and/or submitted to renal transplantation from 2003 to 2016 aiming to find the frequency of acquired cystic disease-associated renal cell carcinoma and clear cell papillary (tubulopapillary) renal cell carcinoma...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923105/genetic-engineering-of-human-nk-cells-to-express-cxcr2-improves-migration-to-renal-cell-carcinoma
#10
Veronika Kremer, Maarten Ligtenberg, Rosa Zendehdel, Christina Seitz, Annet Duivenvoorden, Erik Wennerberg, Eugenia Colón, Ann-Helén Scherman-Plogell, Andreas Lundqvist
BACKGROUND: Adoptive natural killer (NK) cell transfer is being increasingly used as cancer treatment. However, clinical responses have so far been limited to patients with hematological malignancies. A potential limiting factor in patients with solid tumors is defective homing of the infused NK cells to the tumor site. Chemokines regulate the migration of leukocytes expressing corresponding chemokine receptors. Various solid tumors, including renal cell carcinoma (RCC), readily secrete ligands for the chemokine receptor CXCR2...
September 19, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28923104/phase-1-study-of-intravenous-administration-of-the-chimeric-adenovirus-enadenotucirev-in-patients-undergoing-primary-tumor-resection
#11
Rocio Garcia-Carbonero, Ramon Salazar, Ignacio Duran, Ignacio Osman-Garcia, Luis Paz-Ares, Juan M Bozada, Valentina Boni, Christine Blanc, Len Seymour, John Beadle, Simon Alvis, Brian Champion, Emiliano Calvo, Kerry Fisher
BACKGROUND: Enadenotucirev (formerly ColoAd1) is a tumor-selective chimeric adenovirus with demonstrated preclinical activity. This phase 1 Mechanism of Action study assessed intravenous (IV) delivery of enadenotucirev in patients with resectable colorectal cancer (CRC), non-small-cell lung cancer (NSCLC), urothelial cell cancer (UCC), and renal cell cancer (RCC) with a comparator intratumoral (IT) dosed CRC patient cohort. METHODS: Seventeen patients scheduled for primary tumor resection were enrolled...
September 19, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28921948/baf180-its-roles-in-dna-repair-and-consequences-in-cancer
#12
Sarah Hopson, Martin J Thompson
In 2011, Varela et al. reported that the PBRM1 gene is mutated in approximately 40% of clear cell renal cell carcinoma cases. Since then, the number of studies relating PBRM1 mutations to cancers has substantially increased. BAF180 has now been linked to more than 30 types of cancers, including ccRCC, cholangiocarcinomas, esophageal squamous cell carcinoma, bladder cancer, and breast cancer. The mutations associated with BAF180 are most often truncations, which result in loss of protein expression. This loss has been shown to adversely affect the expression of genes, likely because BAF180 is the chromatin recognition subunit of PBAF...
September 18, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28920823/diagnosis-and-treatment-of-a-unilateral-renal-cystadenoma-in-an-african-lion-panthera-leo
#13
Ronan Eustace, Jacob Rubin, Kimberly A Thompson, Kyle Snowdon, James G Sikarskie, Colleen Monahan, Rebecca C Smedley
A renal tubular cystadenoma was diagnosed in a 14-yr-old male African lion (Panthera leo). During a routine health evaluation, a left renal mass was identified via physical examination, radiographs, and abdominal ultrasonography. The mass was 30 × 15 cm in size and had a thin capsule with central hypoechoic fluid, suggestive of a perirenal cyst. An exploratory celiotomy with partial nephrectomy was performed without complications. Histologically, the tumor was characterized by a thick fibrous capsule surrounding multiple, variable-sized cysts that markedly compressed the adjacent fibrotic and atrophied renal cortex...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28919990/pharmacological-targeting-of-peptidylarginine-deiminase-4-prevents-cancer-associated-kidney-injury-in-mice
#14
Jessica Cedervall, Anca Dragomir, Falk Saupe, Yanyu Zhang, Johan Ärnlöv, Erik Larsson, Anna Dimberg, Anders Larsson, Anna-Karin Olsson
Renal insufficiency is a frequent cancer-associated problem affecting more than half of all cancer patients at the time of diagnosis. To minimize nephrotoxic effects the dosage of anticancer drugs are reduced in these patients, leading to sub-optimal treatment efficacy. Despite the severity of this cancer-associated pathology, the molecular mechanisms, as well as therapeutic options, are still largely lacking. We here show that formation of intravascular tumor-induced neutrophil extracellular traps (NETs) is a cause of kidney injury in tumor-bearing mice...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28918879/axitinib-related-osteonecrosis-of-the-jaw
#15
Vinod Patel, Chris Sproat, Jerry Kwok, Nikki Tanna
Tyrosine kinase inhibitors (TKIs) are oral chemotherapy drugs used primarily to treat leukemias, renal cell carcinomas, gastrointestinal stromal tumors, and neuroendocrine tumors. Within this group, a number of drugs have already been implicated in jaw necrosis. Axitinib (Inlyta) is a novel TKI currently licensed for the treatment of renal cell carcinoma. We report the first case, to our knowledge, of jaw necrosis solely related to this medication and review the literature surrounding TKIs and their implication in osteonecrosis of the jaw...
August 18, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28918459/hla-class-i-expression-predicts-prognosis-and-therapeutic-benefits-from-tyrosine-kinase-inhibitors-in-metastatic-renal-cell-carcinoma-patients
#16
Jiajun Wang, Li Liu, Yang Qu, Wei Xi, Yu Xia, Qi Bai, Ying Xiong, Qilai Long, Jiejie Xu, Jianming Guo
PURPOSE: Classical HLA class I antigen is highly involved in antigen presentation and adaptive immune response against tumor. In this study, we explored its predictive value for treatment response and survival in metastatic renal-cell carcinoma (mRCC) patients. EXPERIMENTAL DESIGN: A TKI cohort of 111 mRCC patients treated with sunitinib or sorafenib and a non-TKI cohort of 160 mRCC patients treated with interleukin-2 or interferon-α-based immunotherapy at a single institution were retrospectively enrolled...
September 16, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28918384/systematic-review-and-meta-analysis-of-effectiveness-of-preoperative-embolization-in-surgery-for-metastatic-spine-disease
#17
Panya Luksanapruksa, Jacob M Buchowski, Sasima Tongsai, Weerasak Singhatanadgige, Jack W Jennings
BACKGROUND: Preoperative embolization (PE) may decrease intraoperative blood loss (IBL) in decompressive surgery of hypervascular spinal metastases. However, no consensus has been found in other metastases and no meta-analysis which reviewed the benefit of PE in spinal metastases has been conducted. OBJECTIVE: To assess IBL in spinal metastases surgery in a randomized controlled trial (RCT) and cohort studies comparing PE and a control group of non-embolized patients...
September 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28918350/expression-and-functional-characterization-of-the-bnip3-protein-in-renal-cell-carcinomas
#18
Stephan Macher-Goeppinger, Martina Keith, Gencay Hatiboglu, Markus Hohenfellner, Peter Schirmacher, Wilfried Roth, Katrin E Tagscherer
BNIP3 (Bcl-2/adenovirus E1B 19-kDa interacting protein 3) is a BH3-only protein that regulates apoptosis and autophagy. BNIP3 plays also an important role in hypoxia-induced cell response and is regulated by HIF1. Here, we studied a possible association of BNIP3 expression and the prognosis of patients with renal cell carcinomas (RCCs) and examined the functional relevance of BNIP3 in the regulation of cell survival and apoptosis of renal carcinoma cells. BNIP3 expression was determined by immunohistochemistry in RCC tumor tissue samples of 569 patients using a tissue microarray...
September 14, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28918178/using-imaging-to-predict-treatment-response-in-genitourinary-malignancies
#19
REVIEW
Amir H Lebastchi, Matthew J Watson, Christopher M Russell, Arvin K George, Alon Z Weizer, Baris Turkbey
CONTEXT: Over the previous2 decades, there have been numerous advancements in the diagnostic evaluation, therapeutic management, and postoperative assessment of genitourinary malignancies. OBJECTIVE: To present a review of current and novel imaging modalities and their utility in the assessment of therapeutic response in the systemic management of renal, testicular, and prostate cancers. EVIDENCE ACQUISITION: A PubMed/Medline search of the current published literature inclusive of prospective and retrospective original research, systematic reviews, and meta-analyses was conducted evaluating imaging modalities for renal cell carcinoma, prostate cancer, and testicular cancer...
September 13, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28918166/high-expression-of-cxc-chemokine-receptor-6-associates-with-poor-prognosis-in-patients-with-clear-cell-renal-cell-carcinoma
#20
Yuan Chang, Lin Zhou, Le Xu, Qiang Fu, Yuanfeng Yang, Zongming Lin, Jiejie Xu
PURPOSE: Accumulating evidence indicates that CXC chemokine receptor 6 (CXCR6) has a crucial role in cancer development and progression, however, its role in clear cell renal cell carcinoma (ccRCC) remains obscure. The aim of this study is to investigate the prognostic value of CXCR6 expression in patients with ccRCC following surgery. MATERIALS AND METHODS: This study retrospectively included 239 patients with ccRCC who underwent nephrectomy and had paraffin tissue available at a single center...
September 13, 2017: Urologic Oncology
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