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renal cell carcinoma immunohistochemistry

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https://www.readbyqxmd.com/read/29147624/high-cxc-chemokine-receptor-1-level-represents-an-independent-negative-prognosticator-in-non-metastatic-clear-cell-renal-cell-carcinoma-patients
#1
Yu Zhu, Zheng Liu, Yiwei Wang, Hangcheng Fu, Zewei Wang, Huyang Xie, Junyu Zhang, Gaoxiang Li, Bo Dai, Dingwei Ye, Jiejie Xu
CXC chemokine receptor 1 (CXCR1) signaling has been shown as an essential molecular nexus regarding cancer cell proliferation, tumor inflammation, and angiogenesis in clear cell renal cell carcinoma (ccRCC). The aim of this study was to investigate the prognostic significance of CXCR1 in patients with non-metastatic ccRCC. Data from 446 consecutive non-metastatic ccRCC patients, operated between 2003 and 2008 at a single institution, were evaluated retrospectively. The cohort was split into a training set (n = 223) and a validation set (n = 223)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29138743/renal-adenocarcinoma-associated-erythrocytosis-in-a-cat-clinicopathological-features-and-immunohistochemical-results
#2
Roberta Troia, Chiara Agnoli, Federico Fracassi, Giuliano Bettini, Alessandra Sfacteria, Luciano Pisoni, Francesco Dondi
This report documents a case of secondary inappropriate erythrocytosis in a cat with renal cell adenocarcinoma, its stabilization through manual erythrocytapheresis, and the EPO-immunostaining on the affected kidney. An 11-year-old cat was presented with lethargy, weight loss and polyuria/polydipsia. An abdominal mass was detected upon physical examination. Clinicopathological work-up revealed marked erythrocytosis (HCT value 64.8%), renal azotemia and decreased urine specific gravity (USG). An abdominal ultrasound was performed, localizing the mass in the right kidney...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/29135534/the-multiple-faces-of-programmed-cell-death-ligand-1-expression-in-malignant-and-nonmalignant-cells
#3
Edwin R Parra, Pamela Villalobos, Jaime Rodriguez-Canales
Preliminary data suggest that tumor expression of programmed cell death ligand 1 (PD-L1) protein in human cancers, as determined by immunohistochemistry in formalin-fixed, paraffin-embedded tissue samples, may predict clinical response to anti-PD-1/PD-L1 therapy. PD-L1 is not a specific tumor marker and its expression is also observed in various nonmalignant cells, such as macrophages and lymphocytes, causing confusion in immunohistochemistry analysis when these inflammatory cells are overlapping with tumors cells...
November 13, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29133143/pathologic-and-clinical-characteristics-of-early-onset-renal-cell-carcinoma
#4
Tyler Clemmensen, Andres Matoso, Tiffany Graham, Win Shun Lai, Soroush Rais-Bahrami, Jennifer Gordetsky
The majority of RCCs occur within the 7th decade of life, uncommonly arising in adults ≤46years. We reviewed the clinicopathologic features of early-onset renal cell carcinoma (RCC) and evaluated the role of immunohistochemistry (IHC) in potentially identifying diagnoses of newly recognized RCC subtypes that may have been previously misclassified. A retrospective review was performed from 2011-2016 for cases of RCC. Early-onset RCC was defined as ≤46years of age. Clinicopathologic findings and hematoxylin and eosin (H&E) slides were reviewed on early-onset RCC patients...
November 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/29118224/exceptional-response-to-temsirolimus-in-a-metastatic-clear-cell-renal-cell-carcinoma-with-an-early-novel-mtor-activating-mutation
#5
Juan Francisco Rodríguez-Moreno, María Apellaniz-Ruiz, Juan María Roldan-Romero, Ignacio Durán, Luis Beltrán, Cristina Montero-Conde, Alberto Cascón, Mercedes Robledo, Jesus García-Donas, Cristina Rodríguez-Antona
mTOR pathway inhibitors are important drugs for the treatment of advanced renal cell carcinoma (RCC). However, no valid predictive markers have been identified to guide treatment selection and identify patients who are sensitive to these drugs. Mutations activating the mTOR pathway have been suggested to predict response; however, their predictive value is still unclear. Here, we present the genomic and functional characterization of a patient with metastatic clear cell RCC (ccRCC) who experienced a partial response to temsirolimus after a poor response to 2 previous lines of treatment...
November 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29113209/prognostic-value-of-copper-transporter-1-expression-in-patients-with-clear-cell-renal-cell-carcinoma
#6
Yu Xia, Li Liu, Qi Bai, Qilai Long, Jiajun Wang, Wei Xi, Jiejie Xu, Jianming Guo
Clear cell renal cell carcinoma (ccRCC) features a Von Hippel-Lindau mutation, associated with a hypoxia-inducible factor (HIF) imbalance. Copper transporter 1 (CTR1) may also promote tumor progression through the modulation of the HIF pathway by copper. Therefore, the present study explored the prognostic effect of tumor CTR1 expression in patients with ccRCC. A total of 293 patients with ccRCC that underwent nephrectomy were retrospectively enrolled. CTR1 expression was assessed by immunohistochemistry, and its association with clinicopathological features and prognosis were evaluated...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29108248/prognostic-relevance-of-androgen-receptor-expression-in-renal-cell-carcinomas
#7
Sebastian Foersch, Mario Schindeldecker, Martina Keith, Katrin E Tagscherer, Aurélie Fernandez, Philipp J Stenzel, Sascha Pahernik, Markus Hohenfellner, Peter Schirmacher, Wilfried Roth, Stephan Macher-Goeppinger
Background: Despite rapid discoveries in molecular biology of renal cell carcinoma (RCC) and advances in systemic targeted therapies, development of new diagnostic and therapeutic strategies is urgently needed. The androgen receptor (AR) has been shown to hold prognostic and predicitve value in several malignancies. Here, we studied a possible association between AR expression and prognosis in patients with RCCs. Results: Low AR expression levels were associated with occurrence of distant metastasis and higher tumor stage in papillary and clear-cell RCCs...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29104112/unclassified-hemangioma-like-renal-cell-carcinoma-a-potential-diagnostic-pitfall
#8
Kanika Taneja, Sohrab Arora, Craig G Rogers, Nilesh S Gupta, Liang Cheng, Sean R Williamson
Recently, rare renal cell carcinomas (RCC) have been reported to closely mimic hemangioma; however, these have been largely recognizable as clear cell RCC. Conversely, true hemangiomas of the kidney are also increasingly recognized. We report a 62-year-old woman who underwent partial nephrectomy for a hemangioma-like RCC without appreciable clear cell morphology. Immunohistochemistry revealed luminal structures that stained positively for cytokeratin (CK), CK7, carbonic anhydrase IX, PAX8, and high molecular weight keratin (HMWK), admixed with a CD34, CD31, and ERG-positive complex network of vessels...
November 2, 2017: Human Pathology
https://www.readbyqxmd.com/read/29100303/krt8-upregulation-promotes-tumor-metastasis-and-is-predictive-of-a-poor-prognosis-in-clear-cell-renal-cell-carcinoma
#9
Hai-Song Tan, Wei-Hua Jiang, Yi He, De-Sheng Wang, Zhen-Jie Wu, Deng-Shuang Wu, Li Gao, Yi Bao, Jia-Zi Shi, Bing Liu, Li-Jun Ma, Lin-Hui Wang
Keratin 8 (KRT8) plays an essential role in the development and metastasis of multiple human cancers. However, its role in clear cell renal cell carcinoma (ccRCC) remains unexplored. Here, we investigated the expression pattern, clinical significance, and function of KRT8 in ccRCC. KRT8 mRNA and protein levels were determined in two large cohorts using quantitative real-time polymerase chain reaction (qRT-PCR) and tissue microarray (TMA) immunohistochemistry (IHC), respectively. We found that KRT8 expression was upregulated in ccRCC and vein tumor thrombi (VTTs)...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29096639/renal-clear-cell-carcinoma-metastasis-to-the-breast-ten-years-after-nephrectomy-a-case-report-and-literature-review
#10
Yanjun Xu, Rui Hou, Qijie Lu, Yifan Deng, Bin Hu
BACKGROUND: Renal cell carcinoma most commonly metastasizes to the lungs, skeleton or liver. Metastatic renal cell carcinoma to the breast is very rare, especially for clear cell carcinoma, and few cases regarding this condition have been reported. CASE PRESENTATION: The case we presented was a 68-year-old Chinese female with metastatic renal clear cell carcinoma of the left breast 10 years after a nephrectomy. Identification of the metastatic renal clear cell carcinoma in the breast required multiple breast imaging modalities...
November 2, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/29079178/the-utility-of-sdhb-and-fh-immunohistochemistry-in-patients-evaluated-for-hereditary-paraganglioma-pheochromocytoma-syndromes
#11
Aaron M Udager, Martin J Magers, Dayna M Goerke, Michelle L Vinco, Javed Siddiqui, Xuhong Cao, David R Lucas, Jeffrey L Myers, Arul M Chinnaiyan, Jonathan B McHugh, Thomas J Giordano, Tobias Else, Rohit Mehra
A significant portion of paragangliomas (PGL) and pheochromocytomas (PCC) occur in patients with hereditary PGL/PCC syndromes, including those with germline mutations in succinate dehydrogenase (SDHx) subunit genes. Recently, germline fumarate hydratase (FH) mutations have been identified in a subset of PGL/PCC, and patients with hereditary leiomyomatosis and renal cell carcinoma (HLRCC) may have an increased risk of developing PGL/PCC. SDHB immunohistochemistry (IHC) has previously been shown to be useful for identifying SDHx-deficient PGL/PCC, however, FH IHC has never been explored in these tumors...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29073630/microrna-30a-5p-inhibits-the-growth-of-renal-cell-carcinoma-by-modulating-grp78-expression
#12
Changlin Wang, Licheng Cai, Jing Liu, Gang Wang, Haoming Li, Xiaoxiong Wang, Wanhai Xu, Minghua Ren, Li Feng, Pinghuang Liu, Cheng Zhang
BACKGROUND/AIMS: MiR-30a-5p, a member of the microRNA-30 family (miR-30), is known to function as a tumor suppressor in several different cancers. However, the expression levels, biological function, and underlying mechanisms of miR-30a-5p in renal cell carcinoma (RCC) remain unclear. Glucose-regulated protein78 (GRP78) is a common cancer biomarker and promotes the growth and survival of cancer cells. The expression of GRP78 has been reported to be modulated by miR-30a in neurons. In this study, the expression profile of miR-30a-5p in clear cell renal cell carcinoma (ccRCC) and its effect on ccRCC through regulating GRP78 expression was investigated...
October 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29052596/t-6-11-renal-cell-carcinoma-a-study-of-seven-cases-including-two-with-aggressive-behavior-and-utility-of-cd68-pg-m1-in-the-differential-diagnosis-with-pure-epithelioid-pecoma-epithelioid-angiomyolipoma
#13
Anna Caliò, Matteo Brunelli, Diego Segala, Serena Pedron, Regina Tardanico, Andrea Remo, Stefano Gobbo, Emanuela Meneghelli, Claudio Doglioni, Ondrej Hes, Claudia Zampini, Pedram Argani, Guido Martignoni
Renal cell carcinomas with t(6;11) chromosome translocation involving the TFEB gene are indolent neoplasms which often occur in young patients. In this study, we report seven cases of renal cell carcinoma with TFEB rearrangement, two of whom had histologically proven metastasis. Patients (4F, 3M) ranged in age from 19 to 55 years (mean 37). One patient developed paratracheal and pleural metastases 24 months after surgery and died of disease after 46 months; another one recurred with neoplastic nodules in the perinephric fat and pelvic soft tissue...
October 20, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29050853/cytoplasmic-expression-of-cd133-stemness-marker-is-associated-with-tumor-aggressiveness-in-clear-cell-renal-cell-carcinoma
#14
Leili Saeednejad Zanjani, Zahra Madjd, Maryam Abolhasani, Yvonne Andersson, Arezoo Rasti, Ahmad Shariftabrizi, Mojgan Asgari
Prominin-1 (CD133) is one of the most commonly used markers for cancer stem cells (CSCs), which are characterized by their ability for self-renewal and tumorigenicity. However, the clinical and prognostic significance of CSCs in renal cell carcinoma (RCC) remains unclear. The aim of this study was to investigate the expression patterns and prognostic significance of the cancer stem cell marker CD133 in different histological subtypes of RCC. CD133 expression was evaluated using immunohistochemistry in 193 well-defined renal tumor samples on tissue microarrays, including 136 (70...
October 16, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/29050255/prognostic-value-of-granulocyte-colony-stimulating-factor-in-patients-with-non-metastatic-clear-cell-renal-cell-carcinoma
#15
Zheng Liu, Yu Zhu, Yiwei Wang, Qiang Fu, Hangcheng Fu, Zewei Wang, Junyu Zhang, Gaoxiang Li, Jiejie Xu, Bo Dai
Granulocyte colony-stimulating factor is a well-known cytokine to stimulate inflammatory cells. We sought to investigate the prognostic value of its expression in patients with non-metastatic clear cell renal cell carcinoma. Enrolled in this study were 228 eligible patients treated with curative nephrectomy for clear cell renal cell carcinoma during 2008. Granulocyte colony-stimulating factor expression was detected by immunohistochemistry in patient specimens, and was divided into three groups according to the distribution of its immunohistochemistry score...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29048672/de-novo-synthesis-of-c4-4a-in-hepatocellular-carcinoma-promotes-migration-and-invasion-of-tumor-cells
#16
Magdalena Görtz, Uwe Galli, Thomas Longerich, Margot Zöller, Ulrike Erb, Peter Schemmer
C4.4A is a glycoprotein that is upregulated in several human malignancies, including colorectal, breast and renal cell carcinomas. Due to its highly restricted expression in healthy tissue, C4.4A was proposed as a potential diagnostic marker. Thus, the present study was designed to evaluate C4.4A expression and function in hepatocellular carcinoma (HCC) for the first time. Immunohistochemistry was performed to detect expression of C4.4A in human sections of healthy liver, primary HCC in the liver and metastatic HCC in the lung...
September 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29036563/loss-of-cd15-expression-in-clear-cell-renal-cell-carcinoma-is-correlated-with-worse-prognosis-in-chinese-patients
#17
Chen-Yan Wu, Jian-Ping Huo, Xin-Ke Zhang, Yi-Jun Zhang, Wan-Ming Hu, Ping Yang, Jia-Bin Lu, Zhi-Ling Zhang, Yun Cao
Purpose: To explore the role of CD15 expression in the prognosis of clear cell renal cell carcinoma (ccRCC) in Chinese patients. Methods: The study included 301 patients who had undergone surgery for localized ccRCC. All paraffin-embedded tumor sections were collected to make a set of tissue microarrays. CD15 expression was assessed by immunohistochemistry. The relationship between CD15 expression and survival parameters, clinicopathology features was assessed. Kaplan-Meier and Cox proportional hazards model were utilized to determine the correlation between CD15 expression and overall survival (OS)...
September 21, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28993942/cannabinoid-receptor-2-as-a-novel-target-for-promotion-of-renal-cell-carcinoma-prognosis-and-progression
#18
Jianfeng Wang, Yunze Xu, Liangsong Zhu, Yun Zou, Wen Kong, Baijun Dong, Jiwei Huang, Yonghui Chen, Wei Xue, Yiran Huang, Jin Zhang
PURPOSE: Renal cell carcinoma (RCC) is the most common malignancy of urogenital system, and patients with RCC may face a poor prognosis. However, limited curable therapeutic options are currently available. The aim of this study is to investigate the role of Cannabinoid receptor 2 (CB2) in RCC progression. METHODS: Immunohistochemistry was to investigate the expression pattern of CB2 in 418 RCC tissues and explore its prognostic function in RCC patients. Furthermore, the role of used CB2 si-RNA knockdown and inhibited by AM630, a CB2 inverse agonist, on cell proliferation, migration, and cell cycle of RCC cell lines in vitro was also investigated...
October 9, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28986088/expression-of-tyrosine-kinase-receptor-axl-is-associated-with-worse-outcome-of-metastatic-renal-cell-carcinomas-treated-with-sunitinib
#19
Luís Eduardo Zucca, Mariana Andozia Morini Matushita, Renato José da Silva Oliveira, Cristovam Scapulatempo-Neto, Marcos Alves de Lima, Guilherme Gomes Ribeiro, Cristiano Ribeiro Viana, Flavio Mavignier Cárcano, Rui Manuel Reis
BACKGROUND: Renal cell carcinoma (RCC) represents 2%-3% of all cancers of the Western countries. Currently, sunitinib, a receptor tyrosine kinase inhibitor, particularly of PDGF and VEGF receptors, is the first-line therapy for metastatic RCC (mRCC), with significant improvement in clinical outcome. However, there is a lack of predictive biomarkers of sunitinib response. Recently, others and our group suggested that the receptor tyrosine kinase AXL may modify the response to sunitinib...
October 3, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28984673/toward-biological-subtyping-of-papillary-renal-cell-carcinoma-with-clinical-implications-through-histologic-immunohistochemical-and-molecular-analysis
#20
Rola M Saleeb, Fadi Brimo, Mina Farag, Alexis Rompré-Brodeur, Fabio Rotondo, Vidya Beharry, Samantha Wala, Pamela Plant, Michelle R Downes, Kenneth Pace, Andrew Evans, Georg Bjarnason, John M S Bartlett, George M Yousef
Papillary renal cell carcinoma (PRCC) has 2 histologic subtypes. Almost half of the cases fail to meet all morphologic criteria for either type, hence are characterized as PRCC not otherwise specified (NOS). There are yet no markers to resolve the PRCC NOS category. Accurate classification can better guide the management of these patients. In our previous PRCC study we identified markers that can distinguish between the subtypes. A PRCC patient cohort of 108 cases was selected for the current study. A panel of potentially distinguishing markers was chosen from our previous genomic analysis, and assessed by immunohistochemistry...
December 2017: American Journal of Surgical Pathology
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