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wilms tumors

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https://www.readbyqxmd.com/read/28930610/rps6ka4-mir1237-and-aurkc-promoter-regions-are-differentially-methylated-in-wilms-tumor
#1
Hanna S Pereira, Sheila C Soares Lima, Paulo S de Faria, Leila Ca Cardoso, Hector N Seuanez
Wilms' tumor (WT) is the most frequent renal cancer in childhood, the occurrence of which is characterized by a relatively low frequency of associated mutations. While epigenetic alterations have been postulated to play a relevant role in the emergence of this tumor, the mechanisms involved in WT development remain largely unknown. In this study, the DNA methylation profile of WT was characterized with Beadchip array. Comparisons between WT with normal kidney identified 827 differentially methylated regions, most of which were attributable in hypermethylation in CpG islands...
January 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/28927720/neuronal-defects-an-etiological-factor-in-congenital-pelviureteric-junction-obstruction
#2
Guo Yuan How, Kenneth Tou En Chang, Anette Sundfor Jacobsen, Te-Lu Yap, Caroline Choo Phaik Ong, Yee Low, John Carson Allen, Chik Hong Kuick, Malcolm Zhun Leong Lim, Narasimhan Kannan Laksmi
INTRODUCTION: Congenital pelviureteric junction obstruction (PUJO) is one of the most frequent causes of neonatal hydronephrosis. Obstruction at the PUJ has potential severe adverse outcomes, such as renal damage. While pyeloplasty has been established as the definitive treatment, the exact pathophysiology of congenital PUJO remains unknown. Recent research has proposed neuronal innervation defects as an etiological factor in congenital PUJO. We aim to study the expression of various neuronal markers in PUJO specimens compared with controls, and evaluate whether severity of renal disease or dysfunction pre-operatively is related to expression of neuronal markers in resected PUJO specimens...
September 1, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28927158/regulation-of-htra2-on-wt1-gene-expression-under-imatinib-stimulation-and-its-effects-on-the-cell-biology-of-k562-cells
#3
Lixia Zhang, Yan Li, Xiaoyan Li, Qing Zhang, Shaowei Qiu, Qi Zhang, Min Wang, Haiyan Xing, Qing Rao, Zheng Tian, Kejing Tang, Jianxiang Wang, Yingchang Mi
The aim of the present study was to investigate the regulation of Wilms Tumor 1 (WT1) by serine protease high-temperature requirement protein A2 (HtrA2), a member of the Htr family, in K562 cells. In addition, the study aimed to observe the effect of this regulation on cell biological functions and its associated mechanisms. Expression of WT1 and HtrA2 mRNA, and proteins following imatinib and the HtrA2 inhibitor 5-[5-(2-nitrophenyl) furfuryl iodine]-1, 3-diphenyl-2-thiobarbituric acid (UCF-101) treatment was detected with reverse transcription-quantitative polymerase chain reaction and western blot analysis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28898190/renal-tumors-of-childhood-radiologic-pathologic-correlation-part-2-the-2nd-decade-from-the-radiologic-pathology-archives
#4
Ellen M Chung, Grant E Lattin, Kimberly E Fagen, Andrew M Kim, Michael A Pavio, Adam J Fehringer, Richard M Conran
Malignant renal tumors account for 7% of childhood cancers, and Wilms tumors are by far the most common-but not in older children and adolescents. Among individuals in the latter half of their 2nd decade of life, renal cell carcinoma (RCC) is more common than Wilms tumor. The histopathologic spectrum of RCCs in children differs from that in adults. The most common subtype of RCC in children and adolescents is Xp11.2 translocation RCC, which is distinguished by hyperattenuation at nonenhanced computed tomography, a defined capsule, and associated retroperitoneal lymphadenopathy...
September 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28894579/metanephric-adenoma-treated-with-laparoscopic-nephrectomy-a-case-report
#5
Yuta Takezawa, Kouji Izumi, Hiroko Ikeda, Taito Nakano, Hiroyuki Konaka, Atsushi Mizokami, Mikio Namiki
Metanephric adenoma is an uncommon benign renal tumor that occurs predominantly in adult females and rarely in children. Its histomorphology resembles that of epithelial Wilms' tumor and papillary renal cell carcinoma. From a diagnostic and therapeutic perspective, recognition of this entity is important as it has a more favorable clinical outcome compared with Wilms' tumor and renal cell carcinoma. Metanephric adenoma should not be treated with nephrectomy if the tumor size is small. However, preoperative diagnosis of this disease is extremely challenging...
September 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28893315/heterogeneous-drug-penetrance-of-veliparib-and-carboplatin-measured-in-triple-negative-breast-tumors
#6
Imke H Bartelink, Brendan Prideaux, Gregor Krings, Lisa Wilmes, Pei Rong Evelyn Lee, Pan Bo, Byron Hann, Jean-Philippe Coppé, Diane Heditsian, Lamorna Swigart-Brown, Ella F Jones, Sergey Magnitsky, Ron J Keizer, Niels de Vries, Hilde Rosing, Nela Pawlowska, Scott Thomas, Mallika Dhawan, Rahul Aggarwal, Pamela N Munster, Laura J Esserman, Weiming Ruan, Alan H B Wu, Douglas Yee, Véronique Dartois, Radojka M Savic, Denise M Wolf, Laura van 't Veer
BACKGROUND: Poly(ADP-ribose) polymerase inhibitors (PARPi), coupled to a DNA damaging agent is a promising approach to treating triple negative breast cancer (TNBC). However, not all patients respond; we hypothesize that non-response in some patients may be due to insufficient drug penetration. As a first step to testing this hypothesis, we quantified and visualized veliparib and carboplatin penetration in mouse xenograft TNBCs and patient blood samples. METHODS: MDA-MB-231, HCC70 or MDA-MB-436 human TNBC cells were implanted in 41 beige SCID mice...
September 11, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28881592/associations-between-lmo1-gene-polymorphisms-and-wilms-tumor-susceptibility
#7
Guo-Chang Liu, Zhen-Jian Zhuo, Shi-Bo Zhu, Jinhong Zhu, Wei Jia, Zhang Zhao, Jin-Hua Hu, Jing He, Feng-Hua Wang, Wen Fu
Wilms' tumor is the most common childhood renal malignancy. A genome-wide association study identified LIM domain only 1 (LMO1) as having oncogenic potential. We examined the associations between LMO1 gene polymorphisms and susceptibility to Wilms' tumor. In this hospital-based, case-control study, we recruited 145 children with Wilms' tumor and 531 cancer-free children. Four polymorphisms (rs110419 A>G, rs4758051 G>A, rs10840002 A>G and rs204938 A>G) were genotyped using Taqman methodology. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to measure the associations between selected polymorphisms and Wilms' tumor susceptibility...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28878596/nucleotide-transition-390c-t-in-the-wilms-tumor-1-gene-a-risk-factor-of-hypospadias
#8
Gergely Buglyó, Ágnes Magyar, Sándor Biró, István Csízy, Dániel Beyer, Kinga Molnár, Éva Oláh
INTRODUCTION: The gene Wilms' tumor 1 (WT1) encodes a unique transcription factor. Its defects are known to cause a wide range of complex genitourinary malformations and may contribute to non-syndromic forms of hypospadias. MATERIALS AND METHODS: We performed WT1 mutation analysis and copy number analysis of WT1-interacting protein in 13 Hungarian patients diagnosed with isolated hypospadias. RESULTS: Sequencing of WT1 revealed a high frequency of heterozygosity for transition 390C-T (5 heterozygotes out of 13 patients, including 2 brothers)...
August 2017: Current Urology
https://www.readbyqxmd.com/read/28869618/outcomes-following-autologous-hematopoietic-stem-cell-transplant-for-patients-with-relapsed-wilms-tumor-a-cibmtr-retrospective-analysis
#9
M H Malogolowkin, M T Hemmer, J Le-Rademacher, G A Hale, P A Metha, A R Smith, C Kitko, A Abraham, H Abdel-Azim, C Dandoy, M Angel Diaz, R P Gale, G Guilcher, R Hayashi, S Jodele, K A Kasow, M L MacMillian, M Thakar, B M Wirk, A Woolfrey, E L Thiel
Despite the marked improvement in the overall survival (OS) for patients diagnosed with Wilms' tumor (WT), the outcomes for those who experience relapse have remained disappointing. We describe the outcomes of 253 patients with relapsed WT who received high-dose chemotherapy (HDT) followed by autologous hematopoietic stem cell transplant (HCT) between 1990 and 2013, and were reported to the Center for International Blood and Marrow Transplantation Research. The 5-year estimates for event-free survival (EFS) and OS were 36% (95% confidence interval (CI); 29-43%) and 45% (95 CI; 38-51%), respectively...
September 4, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28867113/precision-medicine-and-pet-computed-tomography-in-pediatric-malignancies
#10
REVIEW
Yasemin Sanli, Ebru Yilmaz, Rathan M Subramaniam
Fluorine-18 fluorodeoxyglucose ((18)F-FDG) PET-computed tomography (CT) plays a significant role in diagnosis, staging, therapy selection, and therapy assessment of multiple pediatric malignancies and facilitating precision medicine delivery in pediatric patients. In patients with Hodgkin lymphoma, interim fludeoxyglucose (18)F-FDG PET/CT is highly sensitive and specific for predicting survival and multiple trials with FDG PET/CT-based adaptive therapies are currently ongoing. It is superior to iodine-131 metaiodobenzylguanidine ((131)I-MIBG) scintigraphy and bone scintigraphy for detecting metastases in neuroblastoma patients and sarcoma patients...
October 2017: PET Clinics
https://www.readbyqxmd.com/read/28862203/utility-of-cell-block-to-detect-malignancy-in-fluid-cytology-adjunct-or-necessity
#11
Sumedha Dey, Dipanwita Nag, Ayandip Nandi, Ranjana Bandyopadhyay
AIM OF THE STUDY: Cell block (CB) technique when supplemented with conventional smear, provides increased cellularity, preservation of architectural pattern with excellent morphology, and a clear background. We compare the utility of CB technique compared to conventional smear in detection of malignancy in serous effusions. MATERIALS AND METHODS: An institution-based observational and analytical study was carried out over 1 year on 50 patients with effusions. The residual amount of centrifuged deposit after preparation of conventional smear was mixed with 10% alcohol-formalin solution, and CBs were prepared...
July 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28859078/the-wagr-syndrome-gene-prrg4-is-a-functional-homologue-of-the-commissureless-axon-guidance-gene
#12
Elizabeth D Justice, Sarah J Barnum, Thomas Kidd
WAGR syndrome is characterized by Wilm's tumor, aniridia, genitourinary abnormalities and intellectual disabilities. WAGR is caused by a chromosomal deletion that includes the PAX6, WT1 and PRRG4 genes. PRRG4 is proposed to contribute to the autistic symptoms of WAGR syndrome, but the molecular function of PRRG4 genes remains unknown. The Drosophila commissureless (comm) gene encodes a short transmembrane protein characterized by PY motifs, features that are shared by the PRRG4 protein. Comm intercepts the Robo axon guidance receptor in the ER/Golgi and targets Robo for degradation, allowing commissural axons to cross the CNS midline...
August 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28859044/vincristine-irinotecan-and-bevacizumab-in-relapsed-wilms-tumor-with-diffuse-anaplasia
#13
Amalia Schiavetti, Giulia Varrasso, Paola Collini, Anna Clerico
The prognosis of relapsed Wilms tumor (WT) with diffuse anaplasia is dismal, therefore, novel therapeutic strategies need to be explored. We reported on 2 consecutive cases with relapsed anaplastic WT who presented a partial response after 2 courses of vincristine, irinotecan, and bevacizumab association. This regimen may have a role in the treatment of patients with anaplastic advanced WT.
August 30, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28859039/clinical-profile-and-outcome-of-influenza-a-h1n1-in-pediatric-oncology-patients-during-the-2015-outbreak-a-single-center-experience-from-northern-india
#14
Nishant Verma, Vishal Pooniya, Archana Kumar
BACKGROUND: Owing to their immunocompromised status, childhood cancer patients on chemotherapy are at a greater risk for Influenza infection and its associated complications. There is limited data available on the clinical profile and outcome of Influenza A/H1N1 in this subset of patients. METHODS: A retrospective study was performed of Influenza A/H1N1 cases diagnosed between January 2015 to December 2015 in the in-patients of Pediatric Oncology unit of a tertiary care hospital from Northern India...
August 30, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28859028/sinusoidal-obstruction-syndrome-during-chemotherapy-of-pediatric-cancers-and-its-successful-management-with-defibrotide
#15
Hande Kizilocak, Gürcan Dikme, Nihal Özdemir, Sebuh Kuruğoğlu, İbrahim Adaletli, Tülay Erkan, Tiraje Celkan
Sinusoidal obstruction syndrome (SOS) is a life-threatening complication generally occurring after hematopoietic stem cell transplantation. SOS after standard dose chemotherapy in malignancies is rare. Between the year 1995 and 2016, 414 patients were diagnosed with acute lymphoblastic leukemia and 113 patients were diagnosed with Wilms tumor in our institution. Among these patients, 4 patients with acute lymphoblastic leukemia (0.96%) and 2 patients with Wilms tumor (1.7%) developed SOS during treatment. SOS behaves like a local disseminated intravascular coagulation...
August 30, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28846953/post-remissional-and-pre-transplant-role-of-minimal-residual-disease-detected-by-wt1-in-acute-myeloid-leukemia-a-retrospective-cohort-study
#16
Chiara Frairia, Semra Aydin, Ernesta Audisio, Ludovica Riera, Sabrina Aliberti, Bernardino Allione, Alessandro Busca, Stefano D'Ardia, Chiara Maria Dellacasa, Anna Demurtas, Andrea Evangelista, Giovannino Ciccone, Paola Francia di Celle, Barbara Nicolino, Alessandra Stacchini, Filippo Marmont, Umberto Vitolo
In acute myeloid leukemia (AML), the detection of minimal residual disease (MRD) is still under investigation. The aim of the present retrospective study was to assess the role of Wilms tumor gene 1 (WT1) overexpression in a large monocentric cohort of AML patients. Among 255 enrolled patients, MRD was investigated in those in complete remission (CR) with an available WT1 at baseline (>250 copies) and at two further time-points: after induction (n=117) and prior allogeneic hematopoietic cell transplantation (allo-HCT), n=65...
August 25, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28845162/induced-pluripotent-stem-cells-reduce-progression-of-experimental-chronic-kidney-disease-but-develop-wilms-tumors
#17
Heloisa Cristina Caldas, Fernando Henrique Lojudice, Cinthia Dias, Ida Maria Maximina Fernandes-Charpiot, Maria Alice Sperto Ferreira Baptista, Rosa Sayoko Kawasaki-Oyama, Mari Cleide Sogayar, Christina Maeda Takiya, Mario Abbud-Filho
The therapeutic effect of induced pluripotent stem cells (iPSs) on the progression of chronic kidney disease (CKD) has not yet been demonstrated. In this study, we sought to assess whether treatment with iPSs retards progression of CKD when compared with bone marrow mesenchymal stem cells (BMSCs). Untreated 5/6 nephrectomized rats were compared with CKD animals receiving BMSCs or iPSs. Renal function, histology, immunohistochemistry, and gene expression were studied. Implanted iPSs were tracked by the SRY gene expression analysis...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28830889/dendritic-cell-vaccination-as-post-remission-treatment-to-prevent-or-delay-relapse-in-acute-myeloid-leukemia
#18
Sébastien Anguille, Ann L Van de Velde, Evelien L Smits, Viggo F Van Tendeloo, Gunnar Juliusson, Nathalie Cools, Griet Nijs, Barbara Stein, Eva Lion, Ann Van Driessche, Irma Vandenbosch, Anke Verlinden, Alain P Gadisseur, Wilfried A Schroyens, Ludo Muylle, Katrien Vermeulen, Marie-Berthe Maes, Kathleen Deiteren, Ronald Malfait, Emma Gostick, Martin Lammens, Marie M Couttenye, Philippe Jorens, Herman Goossens, David A Price, Kristin Ladell, Yoshihiro Oka, Fumihiro Fujiki, Yusuke Oji, Haruo Sugiyama, Zwi N Berneman
Relapse is a major problem in acute myeloid leukemia (AML) and adversely impacts survival. In this phase II study, we investigated the effect of vaccination with dendritic cells (DCs) electroporated with Wilms' tumor 1 (WT1) mRNA as post-remission treatment in 30 AML patients at very high risk of relapse. There was a demonstrable anti-leukemic response in 13 patients. Nine patients achieved molecular remission as demonstrated by normalization of WT1 transcript levels, 5 of which are sustained after a median follow-up of 109...
August 22, 2017: Blood
https://www.readbyqxmd.com/read/28830846/diffusion-weighted-mri-for-differentiating-wilms-tumor-from-neuroblastoma
#19
Mine Aslan, Ahmet Aslan, Hatice Arıöz Habibi, Ayşe Kalyoncu Uçar, Evrim Özmen, Selim Bakan, Sebuh Kuruğoğlu, İbrahim Adaletli
PURPOSE: Wilms tumor (WT) and neuroblastoma (NB) are the most common pediatric abdominal malignant neoplasms of the kidney and adrenal gland. Differentiating them from each other is essential since their treatments are different. Here, we aimed to show the diffusion characteristics of WT and NB for differentiation. METHODS: Diffusion-weighted imaging (DWI) of 17 histopathologically diagnosed lesions (10 NB and 7 WT in 8 female and 9 male patients) was evaluated retrospectively...
August 22, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28829507/microrna-613-attenuates-the-proliferation-migration-and-invasion-of-wilms-tumor-via-targeting-frs2
#20
H-F Wang, Y-Y Zhang, H-W Zhuang, M Xu
OBJECTIVE: Wilms' tumor is the most common malignant tumor in children worldwide. Considering the poor therapeutic effect on Wilms' tumor, we determined the effects of microRNA-613 on cell proliferation and metastasis in vitro, providing therapeutic targets for the treatment of Wilms' tumor. PATIENTS AND METHODS: Quantitative real-time PCR (qRT-PCR) was employed to identify the expression level of miR-613. CCK8 and colony formation assays were incorporated to assess cell viability and proliferation capacity...
August 2017: European Review for Medical and Pharmacological Sciences
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