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https://www.readbyqxmd.com/read/28538243/bk-virus-as-a-mediator-of-graft-dysfunction-following-kidney-transplantation
#1
Stephanie G Yi, Richard J Knight, Keri E Lunsford
PURPOSE OF REVIEW: BK virus is a significant risk factor for kidney allograft dysfunction and loss among renal transplant recipients. Currently, there is no proven effective treatment except for the reduction of immunosuppression. In this review, we discuss diagnostic challenges and current treatment options for BK in kidney transplant recipients. RECENT FINDINGS: Antiviral and antibiotic therapies have been employed for BK viraemia with variable efficacy. In addition, novel therapeutic regimens such as adoptive transfer of targeted T cells have been described as possible treatment options for recipients with BK nephropathy...
May 22, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28538181/malate-and-aspartate-increase-l-arginine-and-nitric-oxide-and-attenuate-hypertension
#2
Entai Hou, Na Sun, Fuchang Zhang, Chenyang Zhao, Kristie Usa, Mingyu Liang, Zhongmin Tian
Fumarase catalyzes the interconversion of fumarate and L-malate in the tricarboxylic acid cycle. The Dahl salt-sensitive (SS) rat, a model of salt-sensitive hypertension, exhibits fumarase insufficiencies. To investigate the mechanism mediating the effect of fumarase-related metabolites on hypertension, we considered the pathway in which L-malate can be converted to oxaloacetate, aspartate, argininosuccinate, and L-arginine, the substrate of nitric oxide (NO) synthase. The levels of aspartate, citrulline, L-arginine, and NO were significantly decreased in the kidneys of SS rats compared to salt-insensitive consomic SS...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28538016/hypoxia-inducible-factor-activation-in-diabetic-kidney-disease
#3
Patrik Persson, Fredrik Palm
PURPOSE OF REVIEW: Tissue hypoxia is present in kidneys from diabetic patients and constitutes a central pathway to diabetic kidney disease (DKD). This review summarizes regulation of hypoxia inducible factor (HIF) and interventions towards the same for treatment of DKD. RECENT FINDINGS: In the hypoxic diabetic kidney, HIF activity and the effects of HIF signaling seem to be cell-specific. In mesangial cells, elevated glucose levels induce HIF activity by a hypoxia-independent mechanism...
May 19, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28538006/evaluation-and-management-of-patch-test-negative-patients-with-generalized-dermatitis
#4
Alison Spiker, Christen M Mowad
BACKGROUND: Patients with generalized dermatitis are common in dermatology practices. Allergic contact dermatitis is often suspected, and patients frequently undergo patch testing. When patch testing result is negative, further evaluation and management of these patients are challenging. OBJECTIVE: The purpose of this study was to survey members of the American Contact Dermatitis Society regarding the evaluation and management of patch test-negative patients with generalized dermatitis...
May 23, 2017: Dermatitis
https://www.readbyqxmd.com/read/28537941/pathophysiology-of-anca-associated-vasculitis
#5
Turki Al-Hussain, Maged H Hussein, Walter Conca, Hadeel Al Mana, Mohammed Akhtar
Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis is characterized as inflammation of small-sized to medium-sized blood vessels and encompasses several clinicopathologic entities including granulomatosis with polyangiitis, microscopic polyangiitis, eosinophilic granulomatosis with polyangiitis, and renal-limited ANCA-associated vasculitis. Over the past several decades, significant progress has been made in understanding the pathophysiology of ANCA-associated vasculitis. Although neutrophils contain a multitude of granular proteins, clinically significant autoantibodies are only recognized against myeloperoxidase and proteinase 3, both of which are present in the azurophilic granules...
May 22, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28537931/the-network-of-dab2ip-mir-138-in-regulating-drug-resistance-of-renal-cell-carcinoma-associated-with-stem-like-phenotypes
#6
Eun-Jin Yun, Jiancheng Zhou, Chun-Jung Lin, Shan Xu, John Santoyo, Elizabeth Hernandez, Chih-Ho Lai, Ho Lin, Dalin He, Jer-Tsong Hsieh
Targeted therapy is a standard of care for metastatic renal cell carcinoma (RCC) but the response rate is not overwhelmed, which only prolongs a short survival of patients due to the onset of therapeutic resistance. Although the mechanisms are not fully understood, the presence of cancer initiating cells (CIC) may underlie the drug resistance. Nevertheless, identifying CIC phenotypes with its biomarkers in RCC appear to be diverse and controversial from many reports. In this study, we took a different approach to focus on the regulatory mechanism in RCC-CIC and unveil DAB2IP-mediated miR-138 expression that plays a critical role in modulating stem-like phenotypes in RCC via targeting the ABC transporter (ABCA13) as well as oncogenic histone methyltransferase EZH2 while down regulation of miR-138 gene expression in RCC is due to epigenetic gene silencing by DNA methyltransferase 1 (DNMT1)...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537896/5t4-oncofoetal-glycoprotein-an-old-target-for-a-novel-prostate-cancer-immunotherapy
#7
Federica Cappuccini, Emily Pollock, Stephen Stribbling, Adrian V S Hill, Irina Redchenko
The tumour-associated antigen 5T4 is an attractive target for cancer immunotherapy. However to date, reported 5T4-specific cellular immune responses induced by various immunisation platforms have been largely weak or non-existent. In the present study, we have evaluated a heterologous prime boost regime based on the simian adenovirus ChAdOx1 and modified vaccinia virus Ankara (MVA) expressing 5T4 for immunogenicity and tumour protective efficacy in a mouse cancer model. Vaccination-induced immune responses were strong, durable and attributable primarily to CD8+ T cells...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537882/correlation-between-apparent-diffusion-coefficient-adc-and-cellularity-is-different-in-several-tumors-a-meta-analysis
#8
Alexey Surov, Hans Jonas Meyer, Andreas Wienke
The purpose of this meta-analysis was to provide clinical evidence regarding relationship between ADC and cellularity in different tumors based on large patient data.Medline library was screened for associations between ADC and cell count in different tumors up to September 2016. Only publications in English were extracted. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement (PRISMA) was used for the research.Overall, 39 publications with 1530 patients were included into the analysis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537695/robotic-assisted-laparoscopic-excision-of-a-retroperitoneal-ganglioneuroma
#9
Lucas Medeiros Burttet, Fernando Jahn da Silva Abreu, Gabrielle Aguiar Varaschin, Brasil Silva, Milton Berger
INTRODUCTION: Ganglioneuromas are rare benign neoplasms of the sympathetic nervous system. We describe the case of an incidentally found ganglioneuroma in a woman. To our knowledge this is the first described case of robotic excision of a retroperitoneal ganglioneuroma. CASE: A 41-year-old female had an incidental retroperitoneal mass found during a routine US. CT scan and MRI showed an 8.3cm homogeneous mass, adjacent to left kidney upper pole, with peripheral contrast enhancement...
May 23, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28535641/-effect-of-interleukin-6-promoter-dna-methylation-on-the-pathogenesis-of-systemic-lupus-erythematosus
#10
X Y Cai, Y Lu, C Tang, X J Lin, J H Ye, W N Li, Z X He, F F Li
Objective: To analyze peripheral blood interleukin-6 (IL-6) promoter DNA methylation status and its clinical significance in patients with systemic lupus erythematosus (SLE). Methods: Blood samples of 41 adult patients with SLE and 20 healthy controls were collected.The methylation status of IL-6 promoter was determined by methylation specific polymerase chain reaction (MSP). The IL-6 expression was detected by real-time PCR.Correlations between IL-6 promoter methylation status and clinical features or laboratory findings in patients with SLE were analyzed...
May 23, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535630/-analysis-of-risk-factors-and-prognosis-for-bleeding-in-very-old-male-patients-with-stage-5-chronic-kidney-disease
#11
X Shen, Q G Ao, Q L Cheng, S Liu, J H Zhao, Q Ma, G Yang, Y Liu
Objective: To analyze the risk factors and prognosis of bleeding in very old male patients with stage 5 chronic kidney disease (CKD). Methods: The clinical data of 143 very old male patients with stage 5 CKD was retrospectively analyzed. According to the occurrence of bleeding, the patients were divided into two groups including the hemorrhage group and the non-hemorrhage group. The history of diseases, renal function, blood cell parameters and coagulation index were compared and analyzed between the two groups...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535587/bicyclol-exerts-an-anti-tumor-effect-via-ros-mediated-endoplasmic-reticulum-stress-in-human-renal-cell-carcinoma-cells
#12
Jing Wu, Weichao Zheng, Ling Rong, Yingru Xing, Dong Hu
Renal cell carcinoma (RCC) is the most common subtype of kidney cancer. Currently, there is a lack of efficient treatment for RCC. Bicyclol, an anti-hepatitis drug, has been demonstrated to possess anti-tumor properties. However, the effect of bicyclol in RCC remains elusive. Therefore, the aim of this study is to investigate the biological effects of bicyclol on RCC and the underlying mechanisms. The data from this study indicated that bicyclol markedly induced cell apoptosis and cell cycle arrest and increased the production of reactive oxygen species (ROS) in RCC cells...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28535509/erythropoietin-inhibits-hypoxia-induced-epithelial-to-mesenchymal-transition-via-upregulation-of-mir-200b-in-hk-2-cells
#13
Jiuxu Bai, Xiao Xiao, Xiaoling Zhang, Hanmin Cui, Junfeng Hao, Jingming Han, Ning Cao
BACKGROUND/AIMS: Renal tubular epithelial-mesenchymal transition (EMT) is regarded as an important factor leading to renal interstitial fibrosis. Erythropoietin (EPO) has been reported to attenuate renal fibrosis. The mechanism underlying this protective effect of EPO remains unclear. In this study, we aim to identify possible mechanisms of the EPO renoprotective effect. METHODS: Hypoxia was induced in vitro by incubating human proximal tubular epithelial cell line HK-2 cells in 1% O2 and 5% CO2...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535371/repression-of-interstitial-identity-in-nephron-progenitor-cells-by-pax2-establishes-the-nephron-interstitium-boundary-during-kidney-development
#14
Natalie Naiman, Kaoru Fujioka, Mari Fujino, M Todd Valerius, S Steven Potter, Andrew P McMahon, Akio Kobayashi
The kidney contains the functional units, the nephrons, surrounded by the renal interstitium. Previously we discovered that, once Six2-expressing nephron progenitor cells and Foxd1-expressing renal interstitial progenitor cells form at the onset of kidney development, descendant cells from these populations contribute exclusively to the main body of nephrons and renal interstitial tissues, respectively, indicating a lineage boundary between the nephron and renal interstitial compartments. Currently it is unclear how lineages are regulated during kidney organogenesis...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28535204/colocalization-of-receptors-for-shiga-toxins-with-lipid-rafts-in-primary-human-renal-glomerular-endothelial-cells-and-influence-of-d-pdmp-on-synthesis-and-distribution-of-glycosphingolipid-receptors
#15
Nadine Legros, Gottfried Pohlentz, Jana Runde, Stefanie Dusny, Hans-Ulrich Humpf, Helge Karch, Johannes Müthing
Damage of human renal glomerular endothelial cells (HRGECs) of the kidney represents the linchpin in the pathogenesis of the hemolytic uremic syndrome (HUS) caused by Shiga toxins (Stxs) of enterohemorrhagic Escherichia coli (EHEC). We performed a comprehensive structural analysis of the Stx receptor glycosphingolipids (GSLs) globotriaosylceramide (Gb3Cer, Galα4alβ4Glcβ1Cer) and globotetraosylceramide (Gb4Cer, GalNAcβ3Galα4Galβ4Glcβ1Cer) and their distribution in lipid raft analogue detergent-resistant membranes (DRMs) and nonDRMs prepared from primary HRGECs...
May 23, 2017: Glycobiology
https://www.readbyqxmd.com/read/28534986/overexpression-of-sox4-promotes-cell-migration-and-invasion-of-renal-cell-carcinoma-by-inducing-epithelial-mesenchymal-transition
#16
Hailong Ruan, Hongmei Yang, Haibin Wei, Wen Xiao, Ning Lou, Bin Qiu, Guanghua Xu, Zhengshuai Song, Haibin Xiao, Lei Liu, Yali Zhou, Wenjun Hu, Ke Chen, Xuanyu Chen, Xiaoping Zhang
Incomplete understanding remains in the molecular mechanisms underlying progression and metastasis of renal cancer. The transcription factor SOX4 is upregulated in various human malignancies, including renal cancer, indicating it may be involved in renal tumorigenesis. In this study, we explored this hypothesis by loss-of-function and gain-of-function assays of SOX4 in renal cancer cell lines and renal epithelial cell line. We found that specific knockdown of SOX4 in renal cancer cell lines significantly suppressed the migration and invasion of cancer cells; specific overexpression of SOX4 in renal epithelial cell line markedly promoted the migration and invasion of the cell line...
May 17, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28534944/high-mir-122-expression-promotes-malignant-phenotypes-in-ccrcc-by-targeting-occludin
#17
Kentaro Jingushi, Yuri Kashiwagi, Yuko Ueda, Kaori Kitae, Hiroaki Hase, Wataru Nakata, Kazutoshi Fujita, Motohide Uemura, Norio Nonomura, Kazutake Tsujikawa
Renal cell carcinoma (RCC) is the most common neoplasm of the adult kidney, and clear cell RCC (ccRCC) represents its most common histological subtype. Although several studies have reported high expression of miR-122 in ccRCC, its physiological role remains unclear. To clarify the role of miR-122 in ccRCC, we compared miR-122 expression levels in non-cancerous tissue and ccRCC. Significant upregulation of miR-122 was observed in ccRCC specimens. Moreover, ccRCC patients with high miR-122 expression showed poor progression-free survival compared to those with low miR-122 expression...
May 22, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28534824/isorhynchophylline-a-potent-plant-alkaloid-induces-apoptotic-and-anti-metastatic-effects-in-human-hepatocellular-carcinoma-cells-through-the-modulation-of-diverse-cell-signaling-cascades
#18
Hanwool Lee, Seung Ho Baek, Jong Hyun Lee, Chulwon Kim, Jeong-Hyeon Ko, Seok-Geun Lee, Arunachalam Chinnathambi, Sulaiman Ali Alharbi, Woong Mo Yang, Jae-Young Um, Gautam Sethi, Kwang Seok Ahn
Isorhynchophylline (Rhy) is an active pharmacological component of Uncaria rhynchophylla that has been reported previously to exert significant antihypertensive and neuroprotective effects. However, very little is known about its potential anti-cancer activities. This study was carried out to evaluate the anticancer effects of Rhy against various human carcinoma cell lines. We found that Rhy exhibited substantial cytotoxic effect against human hepatocellular carcinoma HepG2 cells when compared with other human carcinoma cell lines including those of lung, pancreas, prostate, head and neck, breast, multiple myeloma, brain and renal cell carcinoma...
May 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28534535/the-potential-of-organoids-in-urological-cancer-research
#19
REVIEW
Shangqian Wang, Dong Gao, Yu Chen
Technical advances in the development of organoid systems enable cell lines, primary adult cells, or stem or progenitor cells to develop into diverse, multicellular entities, which can self-renew, self-organize, and differentiate. These 3D organoid cultures have proven to be of value in increasing our understanding of the biology of disease and offer the potential of regenerative and genetic therapies. The successful application of 3D organoids derived from adult tissue into urological cancer research can further our understanding of these diseases and could also provide preclinical cancer models to realize the precision medicine paradigm by therapeutic screening of individual patient samples ex vivo...
May 23, 2017: Nature Reviews. Urology
https://www.readbyqxmd.com/read/28534445/differential-expression-of-micro-rnas-and-their-predicted-targets-in-renal-cells-exposed-to-amphotericin-b-and-its-complex-with-copper-ii-ions
#20
Joanna Magdalena Gola, Barbara Strzałka-Mrozik, Celina Kruszniewska-Rajs, Jolanta Adamska, Mariusz Gagoś, Urszula Mazurek
MicroRNAs (miRNAs) have been reported to regulate essential biological processes, and their expression was shown to be affected by pathological processes and drug-induced toxicity. Amphotericin B (AmB) can cause liver and kidney injury, but a recently developed complex of AmB with copper (II) ions (AmB-Cu(2+)) exhibits a lower toxicity to human renal cells while retaining a high antifungal activity. The aim of our study was to assess AmB-Cu(2+)- induced changes in the miRNA profile of renal cells and to examine which biological processes are significantly affected by AmB-Cu(2+)...
May 23, 2017: Toxicology Mechanisms and Methods
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