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Kidney cancer pathology

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https://www.readbyqxmd.com/read/28429073/urinary-extracellular-vesicles-a-promising-shortcut-to-novel-biomarker-discoveries
#1
REVIEW
Karina Barreiro, Harry Holthofer
Proteomic and genomic techniques have reached full maturity and are providing unforeseen details for the comprehensive understanding of disease pathologies at a fraction of previous costs. However, for kidney diseases, many gaps in such information remain to inhibit major advances in the prevention, treatment and diagnostics of these devastating diseases, which have enormous global impact. The discovery of ubiquitous extracellular vesicles (EV) in all bodily fluids is rapidly increasing the fundamental knowledge of disease mechanisms and the ways in which cells communicate with distant locations in processes of cancer spread, immunological regulation, barrier functions and general modulation of cellular activity...
April 20, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28424250/unifying-mechanism-for-different-fibrotic-diseases
#2
Gerlinde Wernig, Shih-Yu Chen, Lu Cui, Camille Van Neste, Jonathan M Tsai, Neeraja Kambham, Hannes Vogel, Yaso Natkunam, D Gary Gilliland, Garry Nolan, Irving L Weissman
Fibrotic diseases are not well-understood. They represent a number of different diseases that are characterized by the development of severe organ fibrosis without any obvious cause, such as the devastating diseases idiopathic pulmonary fibrosis (IPF) and scleroderma. These diseases have a poor prognosis comparable with endstage cancer and are uncurable. Given the phenotypic differences, it was assumed that the different fibrotic diseases also have different pathomechanisms. Here, we demonstrate that many endstage fibrotic diseases, including IPF; scleroderma; myelofibrosis; kidney-, pancreas-, and heart-fibrosis; and nonalcoholic steatohepatosis converge in the activation of the AP1 transcription factor c-JUN in the pathologic fibroblasts...
April 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28421272/-the-pathology-of-adverse-events-with-immune-checkpoint-inhibitors
#3
V H Koelzer, K Glatz, L Bubendorf, A Weber, A Gaspert, G Cathomas, A Lugli, A Zippelius, W Kempf, K D Mertz
BACKGROUND: Immunotherapy has gained importance with the development of new effective cancer treatments. Immune checkpoint inhibitors (ICI) are monoclonal antibodies that promote T‑cell mediated tumor immune rejection. Checkpoint blockade also carries the risk of inducing autoimmune reactions ("immune related adverse events", irAEs). The diagnosis and classification of irAEs constitute a new and important field in pathology. AIM: Practice-oriented review of the diagnosis and classification of irAEs...
April 18, 2017: Der Pathologe
https://www.readbyqxmd.com/read/28415596/renal-mass-biopsy-using-raman-spectroscopy-identifies-malignant-and-benign-renal-tumors-potential-for-pre-operative-diagnosis
#4
Yufei Liu, Zhebin Du, Jin Zhang, Haowen Jiang
The accuracy of renal mass biopsy to diagnose malignancy can be affected by multiple factors. Here, we investigated the feasibility of Raman spectroscopy to distinguish malignant and benign renal tumors using biopsy specimens. Samples were collected from 63 patients who received radical or partial nephrectomy, mass suspicious of cancer and distal parenchyma were obtained from resected kidney using an 18-gauge biopsy needle. Four Raman spectra were obtained for each sample, and Discriminant Analysis was applied for data analysis...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28406198/topological-defects-in-epithelia-govern-cell-death-and-extrusion
#5
Thuan Beng Saw, Amin Doostmohammadi, Vincent Nier, Leyla Kocgozlu, Sumesh Thampi, Yusuke Toyama, Philippe Marcq, Chwee Teck Lim, Julia M Yeomans, Benoit Ladoux
Epithelial tissues (epithelia) remove excess cells through extrusion, preventing the accumulation of unnecessary or pathological cells. The extrusion process can be triggered by apoptotic signalling, oncogenic transformation and overcrowding of cells. Despite the important linkage of cell extrusion to developmental, homeostatic and pathological processes such as cancer metastasis, its underlying mechanism and connections to the intrinsic mechanics of the epithelium are largely unexplored. We approach this problem by modelling the epithelium as an active nematic liquid crystal (that has a long range directional order), and comparing numerical simulations to strain rate and stress measurements within monolayers of MDCK (Madin Darby canine kidney) cells...
April 12, 2017: Nature
https://www.readbyqxmd.com/read/28395882/should-studies-on-glanzmann-thrombasthenia-not-be-telling-us-more-about-cardiovascular-disease-and-other-major-illnesses
#6
REVIEW
Alan T Nurden
Glanzmann thrombasthenia (GT) is a rare inherited bleeding disorder caused by loss of αIIbβ3 integrin function in platelets. Most genetic variants of β3 also affect the widely expressed αvβ3 integrin. With brief mention of mouse models, I now look at the consequences of disease-causing ITGA2B and ITGB3 mutations on the non-hemostatic functions of platelets and other cells. Reports of arterial thrombosis in GT patients are rare, but other aspects of cardiovascular disease do occur including deep vein thrombosis and congenital heart defects...
April 4, 2017: Blood Reviews
https://www.readbyqxmd.com/read/28382266/impact-of-lifestyle-diseases-on-postoperative-complications-and-survival-in-elderly-patients-with-stage-i-non-small-cell-lung-cancer
#7
Sang Seok Jeong, Pil Jo Choi, Jung Hoon Yi, Sung Sil Yoon
BACKGROUND: The influence of lifestyle diseases on postoperative complications and long-term survival in patients with non-small cell lung cancer (NSCLC) is unclear. The aim of this study was to determine whether lifestyle diseases were significant risk factors of perioperative and long-term surgical outcomes in elderly patients with stage I NSCLC. METHODS: Between December 1995 and November 2013, 110 patients aged 65 years or older who underwent surgical resection of stage I NSCLC at Dong-A University Hospital were retrospectively studied...
April 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28381117/a-multi-centered-propensity-matched-analysis-comparing-laparoscopic-and-open-surgery-for-pt3a-renal-cell-carcinoma
#8
Premal Patel, Jasmir G Nayak, Zhihui Liu, Olli Saarela, Michael Jewett, Ricardo A Rendon, Anil Kapoor, Peter Black, Simon Tanguay, Jun Kawakami, Ronald Moore, Rodney H Breau, Chris Morash, Frederic Pouliot, Darrel Drachenberg
INTRODUCTION: To compare outcomes following laparoscopic renal surgery (LRS) and open renal surgery (ORS) in the treatment of pathological T3a (pT3a) renal cell carcinoma (RCC) using a propensity matched analysis. MATERIALS & METHODS: The Canadian Kidney Cancer Information System is a prospectively maintained database for patients diagnosed with RCC from 15 Canadian institutions. Patients treated for non-metastatic pT3a RCC between 2008-2015 were included. Propensity score matching for age, gender, tumor size, grade, histology and surgical approach were performed to compare laparoscopic radical and partial nephrectomy (LRN or LPN) with open radical or partial nephrectomy (ORN or OPN)...
April 5, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28378548/effect-of-coenzyme-q10-on-radiation-nephropathy-in-rats
#9
Yongkan Ki, Wontaek Kim, Yong Ho Kim, Donghyun Kim, Jin Sook Bae, Dahl Park, Hosang Jeon, Ju Hye Lee, Jayoung Lee, Jiho Nam
The kidney is one of the most radiosensitive organs in the abdominal cavity and is the dose-limiting structure in cancer patients receiving abdominal or total body irradiation. In the present study, the effect of coenzyme Q10 (CoQ10) on radiation nephropathy was evaluated in rats. A total of 72 rats were equally randomized into 4 groups: Control, CoQ10, irradiation with 10 Gy (RT) + placebo, or RT + CoQ10. The 2 RT groups received single 10 Gy of abdominal irradiation. The 2 CoQ10 groups were supplemented daily with 1 mL of soybean oil containing 10 mg/kg of CoQ10...
May 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28373486/diastereomer-specific-quantification-of-bioactive-hexosylceramides-from-bacteria-and-mammals
#10
Johanna von Gerichten, Kerstin Schlosser, Dominic Lamprecht, Ivan Morace, Matthias Eckhardt, Dagmar Wachten, Richard Jennemann, Hermann-Josef Gröne, Matthias Mack, Roger Sandhoff
Mammals synthesize cell-type specifically the diastereomeric hexosylceramides β-galactosylceramide (β-GalCer) and β-glucosylceramide (β-GlcCer), which are involved in several diseases such as sphingolipidosis, diabetes, chronic kidney diseases, or cancer. In contrast Bacteroides fragilis, a member of the human gut microbiome, and the marine sponge Agelas mauritianus produce α-galactosylceramide (α-GalCer), one of the most potent stimulators for iNKT cells. To dissect the contribution of these individual stereoisomers to pathologies, we established a novel HILIC based LC MS(2) method and separate (R > 1...
April 3, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28362712/vascular-endothelial-growth-inhibitor-a-cytokine-of-the-tumor-necrosis-factor-family-is-associated-with-epithelial-mesenchymal-transition-in-renal-cell-carcinoma
#11
Qiang Zhao, Tiezhu Liu, Baoan Hong, Feng Wang, Changhua Zhou, Xin Du, Siqi Chen, Xiaohu Deng, Shayiremu Duoerkun, Qing Li, Yong Yang, Kan Gong, Ning Zhang
Previous studies have revealed that the activation of the epithelial-mesenchymal transition (EMT) endows metastatic properties upon cancer cells to promote invasion and migration. In this study, immunohistochemical analysis was performed in 50 cases of clear cell renal cell carcinoma (RCC) and paired normal kidney tissues. We detected the expression of vascular endothelial growth inhibitor (VEGI) and EMT markers (E-cadherin, fibronectin, and Slug) and recorded the clinical, pathologic, and follow-up (median follow-up: 79...
March 30, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28345835/evolution-of-the-histo-epidemiological-profile-of-urological-cancers-in-togo
#12
Tchin Darré, Koué Folligan, Tchilabalo Matchonna Kpatcha, Kokou Kanassoua, Edoe Sewa, Sassil Daré, Kodjo Tengue, Koffi Amégbor, Gado Napo Koura
Background: Urological cancers are an important public health issue and pose problems with diagnosis and adequate management in developing countries. Our aim was to determine and report epidemiological and histological features of urological cancers in Togo. Materials and methods: A retrospective descriptive study was conducted of cases of urological cancers observed in the laboratory of pathological anatomy of the CHU Tokoin over the last 4 years (2012-2016). The parameters studied were frequency, age, sex, sites of development and histological type...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28336972/microsatellite-analysis-for-differentiating-the-origin-of-renal-angiomyolipoma-and-involved-regional-lymph-node
#13
Ping Tan, Huan Xu, Yong Jiang, Lu Yang, Yan Zou, Liangren Liu, Nian Liu, Dehong Cao, Yu Fan, Qiyuan Li, Qiang Wei
Renal angiomyolipoma (AML) with the regional lymph node (LN) involved leads to a question of metastasis versus multicentric origin when their histology are similar. As the genomic instability is a common feature of cancer, we hypothesized that independently arising neoplasms in an individual patient would exhibit measurable genomic variation, facilitating the discrimination of tumor lineage and relatedness. Our study enrolled 12 patients who were diagnosed with nodal-involved renal AML at West China Hospital...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28315906/nineteen-cases-with-synchronous-multiple-primary-cancers-studied-by-18-f-fdg-pet-ct
#14
Lifang Pang, Guobing Liu, Hongcheng Shi, Pengcheng Hu, Beilei Li, Dengfeng Cheng
OBJECTIVE: To evaluate the value of fluorine -18-fuoro-2-deoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) in evaluating synchronous multiple primary cancers (SMPC). METHODS: Nineteen patients with pathologically-confirmed SMPC were collected. Clinical and (18)F-FDG PET/CT characteristics of these patients were reviewed and analyzed. Maximum standardized uptake value, (SUVmax) of all lesions was measured and difference (Δ)SUVmax between the SUV of two primary tumors in each patient was calculated as: [(the larger SUVmax - the smaller SUVmax)/ the larger SUVmax]×100%...
January 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28303937/vitamin-d-inhibits-lymphangiogenesis-through-vdr-dependent-mechanisms
#15
Saleh Yazdani, Fariba Poosti, Luis Toro, Johannes Wedel, Rik Mencke, Katarina Mirković, Martin H de Borst, J Steven Alexander, Gerjan Navis, Harry van Goor, Jacob van den Born, Jan-Luuk Hillebrands
Excessive lymphangiogenesis is associated with cancer progression and renal disease. Attenuation of lymphangiogenesis might represent a novel strategy to target disease progression although clinically approved anti-lymphangiogenic drugs are not available yet. VitaminD(VitD)-deficiency is associated with increased cancer risk and chronic kidney disease. Presently, effects of VitD on lymphangiogenesis are unknown. Given the apparently protective effects of VitD and the deleterious associations of lymphangiogenesis with renal disease, we here tested the hypothesis that VitD has direct anti-lymphangiogenic effects in vitro and is able to attenuate lymphangiogenesis in vivo...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28301139/designing-hydrogels-for-on-demand-therapy
#16
Nuria Oliva, João Conde, Kui Wang, Natalie Artzi
Systemic administration of therapeutic agents has been the preferred approach to treat most pathological conditions, in particular for cancer therapy. This treatment modality is associated with side effects, off-target accumulation, toxicity, and rapid renal and hepatic clearance. Multiple efforts have focused on incorporating targeting moieties into systemic therapeutic vehicles to enhance retention and minimize clearance and side effects. However, only a small percentage of the nanoparticles administered systemically accumulate at the tumor site, leading to poor therapeutic efficacy...
March 16, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28292989/-renal-disorders-and-drug-therapy
#17
Satoru Muto
In recent years, among patients treated with anticancer chemotherapy, the rate of chronic kidney disease has been increasing. Nephropathy is a major potential adverse event in cancer drug therapy. Anticancer chemotherapy, particularly in patients with comorbid chronic kidney disease, requires sufficient examination of the balance between the potential therapeutic benefit and the risk of decreased renal function. The overwhelming diversity of drugs used to treat cancer involves equally diverse nephropathy pathologies and dose adjustments...
March 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28275931/the-concentration-of-vanadium-in-pathologically-altered-human-kidneys
#18
Aleksandra Wilk, Barbara Wiszniewska, Dagmara Szypulska-Koziarska, Paulina Kaczmarek, Maciej Romanowski, Jacek Różański, Marcin Słojewski, Kazimierz Ciechanowski, Małgorzata Marchelek-Myśliwiec, Elżbieta Kalisińska
Vanadium has a unique and beneficial effect on both humans and animal organisms; however, excessive amount of the above-mentioned metal can cause many alterations in tissues and organs, including the kidneys. The aim of the study was to determine the concentration of vanadium (V) in the kidneys removed from patients due to lesions of various etiologies, including the rejection of the transplanted kidneys. Additionally, we determined the influence of selected biological and environmental factors on the V concentration...
March 9, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28264537/-locally-advanced-ureteral-cancer-seen-in-an-ectopic-kidney-a-case-report
#19
Koki Maeda, Yusaku Okada, Susumu Kageyama, Mitsuhiro Narita, Akihiro Kawauchi
An ectopic kidney is a common congenital anomaly of the urogenital system, but malignant tumor in an ectopic kidney has been rarely reported. We report a case of ureteral carcinoma arising from an ectopic kidney in an 83-year-old male. He visited a hospital complaining of gross hematuria. Computed tomography revealed right ectopic kidney, right ureteral tumor and bladder tumor around the right ureteral orifice. Transurethral resection of the bladder tumor was performed and histopathological diagnosis was urothelial carcinoma...
February 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28249616/tumor-to-tumor-metastases-papillary-thyroid-carcinoma-into-a-clear-cell-renal-cell-carcinoma
#20
Jin Soo Andy Song, S Mark Taylor, Jonathan Trites, Matthew H Rigby, Martin Joseph Bullock, Jennifer Merrimen, Ricardo Rendon, Robert D Hart
BACKGROUND: Thyroid metastases to distant sites are uncommon incidents, most often metastasizing to the lungs and bones. Rates of metastasis to the kidney are particularly low, ranging from 2.8-3.8% for papillary and 6-20% for follicular variants of well-differentiated thyroid cancers (WDTCs). In rare instances, tumor-to-tumor metastasis between two true primary neoplasms can occurs. This medical phenomenon has previously occurred as a clear cell renal cell carcinoma (CCRCC) spreading to a WDTC...
March 1, 2017: Journal of Otolaryngology—Head & Neck Surgery
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