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Papillary renal cell

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https://www.readbyqxmd.com/read/29215458/recurrence-of-renal-cell-cancer-after-renal-transplantation-in-a-multicenter-french-cohort
#1
Noëlle Cognard, Dany Anglicheau, Philippe Gatault, Sophie Girerd, Marie Essig, Bruno Hurault de Ligny, Yann Le Meur, Franck Le Roy, Cyril Garrouste, Antoine Thierry, Charlotte Colosio, Joseph Rivalan, Johnny Sayegh, Gabriel Choukroun, Bruno Moulin, Sophie Caillard
BACKGROUND: Renal cancer accounts for 3% of adult malignancies; renal cell carcinoma (RCC) represents 80% of all renal cancers, and is characterized by late recurrences. Recurrences after kidney transplantation are associated with a high mortality rate. We aimed to determine if recurrences are linked to tumor characteristics and to delays between diagnosis and transplantation. METHODS: We retrospectively analyzed data from French kidney-transplanted patients with medical histories of pre-transplant renal cancer, focusing on the most common histological subtypes: clear cell and papillary cancers...
December 5, 2017: Transplantation
https://www.readbyqxmd.com/read/29208768/caspase-independent-programmed-cell-death-triggers-ca2po4-deposition-in-an-in-vitro-model-of-nephrocalcinosis
#2
Giovanna Priante, Federica Quaggio, Lisa Gianesello, Monica Ceol, Rosalba Cristofaro, Liliana Terrin, Claudio Furlan, Dorella Del Prete, Franca Anglani
Nephrocalcinosis involves the deposition of microscopic crystals in the tubular lumen or interstitium. While the clinical, biochemical and genetic aspects of the diseases causing nephrocalcinosis have been elucidated, little is known about the cellular events in this calcification process. We previously reported a phenomenon involving the spontaneous formation of Ca2PO4 nodules in primary papillary renal cells from a patient with medullary nephrocalcinosis harboring a rare GDNF gene variant. We also demonstrated that cultivating GDNF -silenced HK-2 cells in osteogenic conditions for 15 days triggered Ca2PO4 deposits...
December 5, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29208006/identification-and-validation-of-a-44-gene-expression-signature-for-the-classification-of-renal-cell-carcinomas
#3
Qifeng Wang, Hualei Gan, Chengshu Chen, Yifeng Sun, Jinying Chen, Midie Xu, Weiwei Weng, Liyu Cao, Qinghua Xu, Jian Wang
BACKGROUND: Renal cancers account for more than 3% of all adult malignancies and cause more than 23,400 deaths per year in China alone. The four most common types of kidney tumours include clear cell, papillary, chromophobe and benign oncocytoma. These histological subtypes vary in their clinical course and prognosis, and different clinical strategies have been developed for their management. Some kidney tumours can be very difficult to distinguish based on the pathological assessment of morphology and immunohistochemistry...
December 6, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29207723/papillary-renal-cell-carcinoma-with-tubercular-paraaortic-lymphadenopathy-a-blessing-in-disguise
#4
Bhavna Sharma, Purnima Malhotra, Minakshi Bhardwaj
Incidental Renal Cell Carcinoma (RCC) can be found in a tubercular kidney; however, the vice versa i.e., finding tubercular lymphadenopathy after radical nephrectomy for cancer is exceptionally rare. To the best of our knowledge, only two cases of coexistent renal cell carcinoma and tubercular paraaortic lymphadenopathy have been reported till date. Out of these, only one case was of papillary renal cell carcinoma. We hereby, report a rare case of papillary renal cell carcinoma with coexisting paraaortic tubercular lymphadenopathy, which was upstaged based on radiology findings...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29204790/cytoplasmic-expression-of-twist1-an-emt-related-transcription-factor-is-associated-with-higher-grades-renal-cell-carcinomas-and-worse-progression-free-survival-in-clear-cell-renal-cell-carcinoma
#5
Arezoo Rasti, Zahra Madjd, Maryam Abolhasani, Mitra Mehrazma, Leila Janani, Leili Saeednejad Zanjani, Mojgan Asgari
Twist1 is a key transcription factor, which confers tumor cells with cancer stem cell (CSC)-like characteristics and enhances epithelial-mesenchymal transition in pathological conditions including tumor malignancy and metastasis. This study aimed to evaluate the expression patterns and clinical significance of Twist1 in renal cell carcinoma (RCC). The cytoplasmic and nuclear expression of Twist1 were examined in 252 well-defined renal tumor tissues, including 173 (68.7%) clear cell renal cell carcinomas (ccRCC), 45 (17...
December 4, 2017: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/29203116/diagnosis-and-management-of-metastatic-neoplasms-with-unknown-primary
#6
REVIEW
Tilmann Bochtler, Harald Löffler, Alwin Krämer
In cancer of unknown primary (CUP), metastases are clinically and histologically confirmed, but the primary tumor site remains elusive after extensive work-up. CUPs make up for 2-3% of all epithelial malignancies. The two prevailing histologies are adenocarcinomas and undifferentiated carcinomas, whereas squamous cell carcinomas, neuroendocrine carcinomas and rare histologies account for the remaining 10%. The diagnostic work-up in CUP relies strongly on a detailed immunohistological (IHC) analysis in order to characterize the tumor type, nowadays aided by molecular techniques...
November 26, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29192809/kidney-carcinoid-tumor-histological-immunohistochemical-and-ultrastructural-features
#7
Xin Gu, Minyu Cheng, Guillermo A Herrera
Primary carcinoid tumor of the kidney is uncommon. Only limited morphologic studies have been reported in the literature. In general, renal carcinoid tumor reveals typical morphological features as present in carcinoid tumors in the other organs, i.e. growing as trabeculae intermixed with nests of monotonous cuboidal cells that show "salt and pepper" nuclear appearance. As reported in other organs, different morphological expressions may also present in renal carcinoid tumors, such as papillary, pseudoglandular or solid growth patterns and clear/eosinophilic cytoplasmic changes...
December 1, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/29184052/notch-transactivates-rheb-to-maintain-the-multipotency-of-tsc-null-cells
#8
Jun-Hung Cho, Bhaumik Patel, Santosh Bonala, Sasikanth Manne, Yan Zhou, Surya K Vadrevu, Jalpa Patel, Marco Peronaci, Shanawaz Ghouse, Elizabeth P Henske, Fabrice Roegiers, Krinio Giannikou, David J Kwiatkowski, Hossein Mansouri, Maciej M Markiewski, Brandon White, Magdalena Karbowniczek
Differentiation abnormalities are a hallmark of tuberous sclerosis complex (TSC) manifestations; however, the genesis of these abnormalities remains unclear. Here we report on mechanisms controlling the multi-lineage, early neuronal progenitor and neural stem-like cell characteristics of lymphangioleiomyomatosis (LAM) and angiomyolipoma cells. These mechanisms include the activation of a previously unreported Rheb-Notch-Rheb regulatory loop, in which the cyclic binding of Notch1 to the Notch-responsive elements (NREs) on the Rheb promoter is a key event...
November 29, 2017: Nature Communications
https://www.readbyqxmd.com/read/29181054/predictive-values-of-notch-signalling-in-renal-carcinoma
#9
Dorota Jędroszka, Magdalena Orzechowska, Andrzej K Bednarek
Introduction: Notch signalling, an evolutionarily conserved mechanism of cellular differentiation and tissue remodelling, is frequently deregulated in several human malignancies, including renal cell carcinoma (RCC). However, the prognostic value of individual Notch pathway members in RC subtypes remains indefinable. The present study investigates whether the differential expression of Notch members has a contrary effect on disease-free survival (DFS) in clear cell renal cell carcinoma (KIRC), papillary cell renal cell carcinoma (KIRP) and chromophobe renal cell carcinoma (KICH) patients...
October 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29180625/differential-prognostic-value-of-myc-immunohistochemistry-in-subtypes-of-papillary-renal-cell-carcinoma
#10
Julia Bellut, Simone Bertz, Elke Nolte, Christine Stöhr, Iris Polifka, Verena Lieb, Edwin Herrmann, Rudolf Jung, Arndt Hartmann, Bernd Wullich, Helge Taubert, Sven Wach
The histomorphological subtyping of papillary renal cell carcinomas (pRCCs) has improved the predictions of patients' long-term survival. Based on our previous results, we hypothesized that the MYC proto-oncogene would show differential expression in pRCC subtypes. Using a multi-institutional cohort of 204 pRCC patients we assessed the additional value of the immunohistochemical markers MYC, MINA53, and Ki67 in predicting patient's long-term survival. The clinical endpoints were overall survival (OS) and cancer-specific survival (CSS)...
November 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29180251/renal-cell-carcinoma-with-angioleiomyoma-like-stroma-and-clear-cell-papillary-renal-cell-carcinoma-exploring-sdhb-protein-immunohistochemistry-and-the-relationship-to-tuberous-sclerosis-complex
#11
Sean R Williamson, Jason L Hornick, John N Eble, Nilesh S Gupta, Craig G Rogers, Lawrence True, David J Grignon, Liang Cheng
Renal cell carcinoma (RCC) with angioleiomyoma-like stroma appears to be molecularly distinct from clear cell RCC; however, its relationship to clear cell papillary RCC remains debated. Recent studies have found that similar tumors sometimes occur in patients with tuberous sclerosis complex (TSC), of which one study found unexpectedly negative succinate dehydrogenase (SDH) B immunostaining. We evaluated immunohistochemistry for SDHB in 12 apparently sporadic RCCs with angioleiomyoma-like stroma and correlated with clinical information for stigmata of TSC...
November 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29178029/chemical-shift-magnetic-resonance-imaging-for-distinguishing-minimal-fat-renal-angiomyolipoma-from-renal-cell-carcinoma-a-meta-analysis
#12
Ling-Shan Chen, Zheng-Qiu Zhu, Zhi-Tao Wang, Jing Li, Li-Feng Liang, Ji-Yang Jin, Zhong-Qiu Wang
OBJECTIVES: To determine the performance of chemical shift signal intensity index (CS-SII) values for distinguishing minimal-fat renal angiomyolipoma (mfAML) from renal cell carcinoma (RCC) and to assess RCC subtype characterisation. METHODS: We identified eligible studies on CS magnetic resonance imaging (CS-MRI) of focal renal lesions via PubMed, Embase, and the Cochrane Library. CS-SII values were extracted by lesion type and evaluated using linear mixed model-based meta-regression...
November 24, 2017: European Radiology
https://www.readbyqxmd.com/read/29154985/adolescent-hydrocele-carrying-a-surprise-a-case-of-papillary-cystadenoma-of-the-epididymis
#13
A Soria Gondek, V Julià Masip, C Jou Muñoz, H Salvador Hernández, C Rovira Zurriaga, X Tarrado Castellarnau
Papillary cystadenoma of the epididymis (PCE) is a rare benign epithelial tumor remarkable for its association with Von Hippel-Lindau disease (VHLD). A 12-year-old male consulted for a progressive enlargement of the left testicle. At time of surgery, the whole epididymis was enlarged. Pathological diagnosis was PCE with a focus of borderline malignancy. Scrotal left epididymectomy was performed. VHLD screening was negative. No relapse has been detected two years later. In case of atypical clinical examination of a hydrocele, unusual presentations such as PCE should be considered...
November 15, 2017: Urology
https://www.readbyqxmd.com/read/29149761/crizotinib-achieves-long-lasting-disease-control-in-advanced-papillary-renal-cell-carcinoma-type-1-patients-with-met-mutations-or-amplification-eortc-90101-create-trial
#14
Patrick Schöffski, Agnieszka Wozniak, Bernard Escudier, Piotr Rutkowski, Alan Anthoney, Sebastian Bauer, Jozef Sufliarsky, Carla van Herpen, Lars H Lindner, Viktor Grünwald, Branko Zakotnik, Evelyne Lerut, Maria Debiec-Rychter, Sandrine Marréaud, Michela Lia, Tiana Raveloarivahy, Sandra Collette, Laurence Albiges
PURPOSE: Papillary renal-cell carcinoma type 1 (PRCC1) is associated with MET gene alterations. Our phase II trial prospectively assessed the efficacy and safety of crizotinib in patients with advanced/metastatic PRCC1 with or without MET mutations (MET+ and MET-). EXPERIMENTAL DESIGN: Eligible patients with reference pathology-confirmed PRCC1 received 250 mg oral crizotinib twice daily. Patients were attributed to MET+/MET- sub-cohorts by the sequencing of exons 16-19 of the MET gene in tumour tissue...
November 14, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29146061/sarcoid-like-granulomas-in-renal-cell-carcinoma-the-houston-methodist-hospital-experience
#15
Komal Arora, Mukul K Divatia, Luan Truong, Steven S Shen, Alberto G Ayala, Jae Y Ro
Sarcoid-like (SL) granulomas have been previously described in association with malignant tumors. These granulomas appear to be tumor-related but are not indicative of systemic sarcoidosis, and hence are referred to as SL reactions. These SL reactions can be seen within the primary tumor, its vicinity, or in uninvolved sites such as the spleen, bone marrow, skin, and/or regional lymph nodes draining the tumor. It is a widely held view that SL granulomas are caused by soluble antigenic factors, shed by tumor cells or released due to tumor necrosis...
December 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29145401/anatomically-specific-intratubular-and-interstitial-biominerals-in-the-human-renal-medullo-papillary-complex
#16
Ling Chen, Ryan S Hsi, Feifei Yang, Benjamin A Sherer, Marshall L Stoller, Sunita P Ho
Limited information exists on the anatomically-specific early stage events leading to clinically detectable mineral aggregates in the renal papilla. In this study, quantitative multiscale correlative maps of structural, elemental and biochemical properties of whole medullo-papillary complexes from human kidneys were developed. Correlative maps of properties specific to the uriniferous and vascular tubules using high-resolution X-ray computed tomography, scanning and transmission electron microscopy, energy dispersive X-ray spectroscopy, and immunolocalization of noncollagenous proteins (NCPs) along with their association with anatomy specific biominerals were obtained...
2017: PloS One
https://www.readbyqxmd.com/read/29142953/absence-of-hiv-associated-nephropathy-among-antiretroviral-naive-adults-with-persistent-albuminuria-in-western-kenya
#17
M K Koech, M O G Owiti, W D Owino-Ong'or, A K Koskei, M J Karoney, V D D'Agati, C M Wyatt
Introduction: HIV-associated nephropathy (HIVAN) has been strongly linked to African ancestry. However, studies have demonstrated wide variability in the prevalence of HIVAN in different sub-Saharan African populations. Accurate assessment of the disease burden is important because antiretroviral therapy (ART) is increasingly available and may prevent progression to end-stage renal disease. Methods: We prospectively screened ART-naïve, afebrile, nonhypertensive, and nondiabetic adults attending a large HIV care program in Western Kenya for the presence of albuminuria (dipstick albumin ≥ trace or urine albumin to creatinine ratio [UACR] ≥ 30 mg/g)...
March 2017: KI Reports
https://www.readbyqxmd.com/read/29140878/clear-cell-renal-cell-carcinoma-metastatic-to-the-gynecologic-tract-a-clinicopathologic-analysis-of-17-cases
#18
Oluwole Fadare, Mohamed M Desouki, Katja Gwin, Krisztina Z Hanley, Elke A Jarboe, Sharon X Liang, Charles M Quick, Kojo R Rawish, Andres A Roma, Wenxin Zheng, Jonathan L Hecht, Vinita Parkash, Adeboye O Osunkoya
Clear cell renal cell carcinomas (CCRCC) rarely metastasizes to the gynecologic tract. In this study, we analyzed a multi-institutional data set to provide insights into the clinical, morphologic, and immunophenotypic features of this phenomenon. Seveteen metastatic CCRCC involving the gynecologic tract [ovary/fallopian tube (n=9), vulva (n=2), uterine corpus (n=3), cervix (n=2), uterine serosa (n=1)] were analyzed. Mean patient age was 62 yr (range: 45-79 yr). Most cases (15/17) presented as a recurrence 6 to 72 mo postnephrectomy, 1 case was concurrently diagnosed, and 1 case (a cervical metastasis) was diagnosed prenephrectomy...
November 14, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29136101/identification-of-topological-features-in-renal-tumor-microenvironment-associated-with-patient-survival
#19
Jun Cheng, Xiaokui Mo, Xusheng Wang, Anil Parwani, Qianjin Feng, Kun Huang
Motivation: As a highly heterogeneous disease, the progression of tumor is not only achieved by unlimited growth of the tumor cells, but also supported, stimulated, and nurtured by the microenvironment around it. However traditional qualitative and/or semi-quantitative parameters obtained by pathologist's visual examination have very limited capability to capture this interaction between tumor and its microenvironment. With the advent of digital pathology, computerized image analysis may provide a better tumor characterization and give new insights into this problem...
November 9, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29135120/immunohistochemical-study-of-cyclin-a-and-p16-expression-in-patients-with-renal-cell-carcinoma
#20
Dragana Latic, Sanja Radojevic-Skodric, Srdjan Nikolic, Mirjana Prvanovic, Miodrag Lazic, Zoran Dzamic, Ljiljana Bogdanovic, Milena Radunovic, Marina Vukovic
PURPOSE: Renal cell carcinoma (RCC) is the most common malignant kidney tumor in adults. Dysregulation of the cell cycle can lead to cancer development. In this study, the mitosis-associated cyclin A and p16, a negative controller, were investigated as potential key points in the RCC development. METHODS: This retrospective study included 74 patients with RCC. The expression of cyclin A and p16 and their correlation to histopathological parameters (TNM stage, histological subtype, nuclear grade, tumor size), gender, age, and clinical outcome were studied and analyzed...
September 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
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