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https://www.readbyqxmd.com/read/29332336/downregulation-of-guanine-nucleotide-binding-protein-beta-1-gnb1-is-associated-with-worsened-prognosis-of-clearcell-renal-cell-carcinoma-and-is-related-to-vegf-signaling-pathway
#1
C Chen, H Chi, L Min, Z Junhua
PURPOSE: Clear-cell renal cell carcinoma (ccRCC) is characterized by genetic abnormalities, while the role of Guanine Nucleotide-Binding Protein Beta 1 (GNB1) in ccRCC has not been studied. We thus aimed to evaluate the expression and prognostic value of GNB1 in ccRCC. METHODS: A two-stage study (exploration and validation) was conducted using in silico and immunohistochemical (IHC) scoring of ccRCC samples from our institute, to evaluate the association between GNB1 expression and clinicopathological parameters of ccRCC patients...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29332133/fumarate-hydratase-fh-deficiency-in-uterine-leiomyomas-recognition-by-histological-features-versus-blind-immunoscreening
#2
Lisa Siegler, Ramona Erber, Stefanie Burghaus, Tobias Brodkorb, David Wachter, Nafisa Wilkinson, James Bolton, Helen Stringfellow, Florian Haller, Matthias W Beckmann, Arndt Hartmann, Abbas Agaimy
Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) syndrome is a rare autosomal dominant disease caused by germline mutations in the fumarate hydratase (FH) gene. Affected individuals develop cutaneous and uterine leiomyomas and aggressive RCC. To date, only few publications described the frequency and morphology of FH-deficient uterine leiomyomas. We reviewed 22 cases collected over 8 years from routine and consultation files based on distinctive histological features. In addition, we screened 580 consecutive uterine leiomyomas from 484 patients, 23 extra-uterine and 8 uterine leiomyosarcomas, and 6 leiomyomas with bizarre nuclei for FH loss using immunohistochemistry (IHC) on tissue microarrays (TMAs)...
January 13, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29328439/prognostic-significance-of-hypoxia-inducible-factor-1%C3%AE-expression-in-patients-with-clear-cell-renal-cell-carcinoma
#3
Shuiqing Wu, Fen Jiang, Hongtao Wu, Yinhuai Wang, Ran Xu, Jian Cao, Qiong Lu, Xuan Zhu, Zhaohui Zhong, Xiaokun Zhao
The prognostic significance of hypoxia inducible factor-1α (HIF-1α) expression in tumors and the levels of preoperative hemoglobin in clear cell renal cell carcinoma (ccRCC), with or without concomitant chronic obstructive pulmonary disease (COPD), was investigated. A total of 128 patients with ccRCC who underwent surgery were analyzed using retrospective methods. Overall survival (OS) and progression free survival (PFS) were analyzed with clinicopathological variables, including preoperative hemoglobin levels, COPD and the levels of HIF‑1α expression, by Kaplan‑Meier survival analysis...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29296589/time-resolved-amplified-fret-identifies-protein-kinase-b-activation-state-as-a-marker-for-poor-prognosis-in-clear-cell-renal-cell-carcinoma
#4
James Miles, Christopher J Applebee, Pierre Leboucher, Sonia Lopez-Fernandez, Dae-Jin Lee, Rosa Guarch, Stephen Ward, Peter J Parker, Jose I López, Banafshé Larijani
Purpose: Clear cell Renal Cell Carcinomas (ccRCC), the largest group of renal tumours, are resistant to classical therapies. The determination of the functional state of actionable biomarkers for the assessment of these adenocarcinomas is essential. The dysregulation of the oncoprotein, PKB/Akt has been linked with poor prognoses in human cancers. Material & methods: We analysed the status of the PKB/Akt pathway in a representative tumour tissue microarray obtained from the primary tumours and their metastases in 60 ccRCC with long term follow up...
December 2017: BBA Clinical
https://www.readbyqxmd.com/read/29291011/transferrin-receptor-1-upregulation-in-primary-tumor-and-downregulation-in-benign-kidney-is-associated-with-progression-and-mortality-in-renal-cell-carcinoma-patients
#5
Christopher J Greene, Kristopher Attwood, Nitika J Sharma, Kenneth W Gross, Gary J Smith, Bo Xu, Eric C Kauffman
The central dysregulated pathway of clear cell (cc) renal cell carcinoma (RCC), the von Hippel Lindau/hypoxia inducible factor-α axis, is a key regulator of intracellular iron levels, however the role of iron uptake in human RCC tumorigenesis and progression remains unknown. We conducted a thorough, large-scale investigation of the expression and prognostic significance of the primary iron uptake protein, transferrin receptor 1 (TfR1/CD71/TFRC), in RCC patients. TfR1 immunohistochemistry was performed in over 1500 cores from 574 renal cell tumor patient tissues (primary tumors, matched benign kidneys, metastases) and non-neoplastic tissues from 36 different body sites...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29286924/expression-of-cd105-cancer-stem-cell-marker-in-three-subtypes-of-renal-cell-carcinoma
#6
Leili Saeednejad Zanjani, Zahra Madjd, Maryam Abolhasani, Ahmad Shariftabrizi, Arezoo Rasti, Mojgan Asgari
BACKGROUND: CD105 is recently described as a cancer stem cell (CSC) marker. OBJECTIVE: The present study was aimed to investigate the expression and prognostic significance of the CSC marker CD105 in different histological subtypes of renal cell carcinoma (RCC). METHODS: Expression of CD105 was evaluated using immunohistochemistry in RCC samples on tissue microarrays including clear cell RCCs (ccRCCs), papillary, and chromophobe RCCs. The association between CD105 expression and clinicopathological features as well as survival outcomes was determined...
December 20, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29280680/smarcb1-deficient-tumors-of-childhood-a-practical-guide
#7
Bruce R Pawel
The SMARCB1 gene ( INI1, BAF47) is a member of the SWItch/Sucrose Non-Fermentable (SWI/SNF) chromatin remodeling complex, involved in the epigenetic regulation of gene transcription. SMARCB1 acts as a tumor suppressor gene, and loss of function of both alleles gives rise to SMARCB1-deficient tumors. The prototypical SMARCB1-deficient tumor is the malignant rhabdoid tumor (MRT) which was first described in the kidney but also occurs in soft tissue, viscera, and the brain (where it is referred to as atypical teratoid rhabdoid tumor or AT/RT)...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/29245241/inflammatory-myofibroblastic-tumor-of-kidney-together-with-ipsilateral-perinephric-and-periureteric-fibrosis-a-case-report-and-literature-review
#8
Zhuolun Sun, Hanbo Wang, Xudong Guo, Shaobo Jiang, Changying Jing
RATIONALE: Both inflammatory myofibroblastic tumor (IMT) and retroperitoneal fibrosis are rare lesions, but kidney involvement is more rare. It is the first study about IMT of the kidney in a patient with perinephric and periureteric fibrosis and we hold that fibroblast proliferation may be an intermediate status in oncogenesis of IMT. But further investigation is necessary in order to better clarify the relationship between fibroblast proliferation and IMT. PATIENT CONCERNS: A 54-year-old female presented no positive signs except dull back pain after overwork...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29243496/increased-expression-of-cd44-is-associated-with-more-aggressive-behavior-in-clear-cell-renal-cell-carcinoma
#9
Leili Saeednejad Zanjani, Zahra Madjd, Maryam Abolhasani, Arezoo Rasti, Oystein Fodstad, Yvonne Andersson, Mojgan Asgari
AIM: Although CD44 has been suggested as a prognostic marker in renal cell carcinoma (RCC), the prognostic significance of this marker in three main subtypes of RCC is still unclear. Thus, the present study was conducted to evaluate the expression and prognostic significance of CD44 as a cancer stem cell marker in different histological subtypes of RCC. METHODOLOGY/RESULTS: CD44 expression was evaluated in 206 well-defined renal tumor samples using immunohistochemistry on tissue microarrays...
December 15, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29233453/cytological-diagnosis-of-a-rare-case-of-cutaneous-metastasis-from-transitional-cell-carcinoma-renal-pelvis
#10
Pragya Singh, Sachin Kolte, Gunjesh Kumar Singh
Transitional cell carcinoma (TCC) arising from renal pelvis rarely gives rise to cutaneous metastasis. Due to the insufficient literature, the exact incidence is not known till date. Moreover, the diagnosis is confirmed on histopathological examination with the aid of immunohistochemistry wherever needed. We are presenting a case of a 70-year-old female with metastatic TCC from the renal pelvis to the abdominal skin, which was diagnosed on cytology alone along with the cell block preparation. We also highlight the important cytomorphological and immunohistochemical features noted, which need to be known to avoid any diagnostic delay...
December 7, 2017: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/29228653/overexpression-of-capn2-promotes-cell-metastasis-and-proliferation-via-akt-mtor-signaling-in-renal-cell-carcinoma
#11
Chenkui Miao, Chao Liang, Ye Tian, Aiming Xu, Jundong Zhu, Kai Zhao, Jianzhong Zhang, Yibo Hua, Shouyong Liu, Huiyu Dong, Chao Zhang, Shifeng Su, Pu Li, Chao Qin, Zengjun Wang
The calpain 2 (CAPN2) is upregulated in various malignant carcinomas. Previous studies have reported that CAPN2 functioned as an oncogenic factor in human cancers. However, its clinical role and potential effects on cell metastasis and proliferation in renal cell carcinoma (RCC) remain unknown. In this study, we evaluated the mRNA and protein levels of CAPN2 in human RCC specimens, matched normal specimens, and RCC cell lines using quantitative Real-time PCR (RT-PCR) and western blot. Immunohistochemistry of 74 RCC tissues in a tissue microarrays (TMAs) and normal kidney tissues were performed...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221190/the-m6a-methyltransferase-mettl3-acting-as-a-tumor-suppressor-in-renal-cell-carcinoma
#12
Xiao Li, Jingyuan Tang, Wen Huang, Feng Wang, Pu Li, Chao Qin, Zhiqiang Qin, Qing Zou, Jifu Wei, Lixin Hua, Haiwei Yang, Zengjun Wang
We aimed to study the role of METTL3 in renal cell carcinoma (RCC) carcinogenesis and development. Immunohistochemistry was performed in clinical tissue microarray. Expression level of METTL3 in RCC tissues and cell lines was evaluated by quantitative real-time PCR (qRT-PCR) and western blot. Then, the effects of METTL3 on proliferation, migration, invasion and cell cycle were studied in RCC cells. Additionally, in vivo study was carried out in nude mice. Negative METTL3 expression was associated with larger tumor size (P=0...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29212269/low-neighbor-of-brca1-gene-expression-predicts-poor-clinical-outcome-and-resistance-of-sunitinib-in-clear-cell-renal-cell-carcinoma
#13
Wen Xiao, Zhiyong Xiong, Changfei Yuan, Lin Bao, Di Liu, Xiong Yang, Wencheng Li, Junwei Tong, Yan Qu, Lei Liu, Haibing Xiao, Hongmei Yang, Xiaoping Zhang, Ke Chen
Objective: To study the expression of Neighbor of Brca1 gene (NBR1) in clear cell renal cell carcinoma (ccRCC), renal cancer cells and the chemoresistance cells and to elucidate its clinical prognostic and chemoresistance value. Materials and Methods: We screened the NBR1 mRNA in ccRCC from The Cancer Genome Atlas (TCGA) database and examined expression levels of NBR1 mRNA in 48 cases of ccRCC tissues, renal cancer cell lines and chemoresistance cells by qRT-PCR...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29209798/-two-synchronous-malignancies-in-a%C3%A2-single-nephrectomy-specimen
#14
J Hrudka, V Eis, J Šach, P Klézl, S Schilling, D Bandke
We report a case of a 65-year-old man examined for hematuria and neurologic symptoms. Radiologically a tumour of the kidney was suspected, with metastatic involvement of the brain and both lungs. The urologists then performed a cytoreductive nephrectomy.In histopathological examination of the nephrectomy specimen a clear cell renal cell carcinoma (clear cell RCC) was found. However, an additional focus of a high-grade adenocarcinoma was discovered that turned out to be a metastasis of a poor differentiated lung adenocarcinoma...
December 5, 2017: Der Pathologe
https://www.readbyqxmd.com/read/29208006/identification-and-validation-of-a-44-gene-expression-signature-for-the-classification-of-renal-cell-carcinomas
#15
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/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
#16
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
#17
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/29192325/downregulation-of-microrna-1274a-induces-cell-apoptosis-through-regulation-of-bmpr1b-in-clear-cell-renal-cell-carcinoma
#18
Hirofumi Yoshino, Tomokazu Yonezawa, Masaya Yonemori, Kazutaka Miyamoto, Takashi Sakaguchi, Satoru Sugita, Youichi Osako, Shuichi Tatarano, Masayuki Nakagawa, Hideki Enokida
Our previous studies of the microRNA (miRNA) expression signature in clear cell renal cell carcinoma (ccRCC) indicated that miRNA-1274a (miR-1274a) was significantly upregulated in clinical specimens, suggesting that miR-1274a may act as an oncogenic miRNA in ccRCC. The aim of this study was to investigate the functional roles of miR-1274a and identify downstream tumor-suppressive targets regulated by miR‑1274a in ccRCC cells. Functional studies of miR-1274a were carried out by anti-miRNA to investigate cell proliferation and apoptosis using the A498, ACHN and Caki1 ccRCC cell lines...
January 2018: Oncology Reports
https://www.readbyqxmd.com/read/29189265/development-of-a-diagnostic-programmed-cell-death-1-ligand-1-immunohistochemistry-assay-for-nivolumab-therapy-in-melanoma
#19
Therese Phillips, Molly M Millett, Xiaoling Zhang, Malinka Jansson, Rachel Cleveland, Pauline Simmons, Gregory Cherryholmes, Josette Carnahan, Josette William, Betsy Spaulding, Ilana R Satnick, H David Inzunza, Clive Taylor, John Cogswell, James Novotny, Emin Oroudjev, Henrik Winther
Nivolumab is a monoclonal antibody that blocks the interaction between programmed cell death 1 (PD1) and programmed cell death 1-ligand 1 (PD-L1), resulting in enhanced antitumor activity by the immune system. Nivolumab is currently approved by the US Food and Drug Administration (FDA) for melanoma, non-small cell lung cancer (NSCLC), renal cell carcinoma, classical Hodgkin lymphoma, squamous cell carcinoma of the head and neck, and urothelial carcinoma. PD-L1 IHC 28-8 pharmDx is FDA-approved as a complementary diagnostic for immunohistochemical (IHC) detection of PD-L1 in non-squamous NSCLC and melanoma...
January 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29187877/overexpression-of-ckap4-is-associated-with-poor-prognosis-in-clear-cell-renal-cell-carcinoma-and-functions-via-cyclin-b-signaling
#20
Chen-Min Sun, Jiang Geng, Yang Yan, Xudong Yao, Min Liu
Aim: We aimed to study the role of CKAP4 in clear cell renal cell carcinoma (ccRCC), which is not reported previously. Method: In silico exploration and validation using immunohistochemistry in ccRCC samples were used to identify the impact of CKAP4 expression on clinicopathological parameters. In vitro and in vivo studies were carried out to recapitulate the role of CKAP4 in ccRCC cell lines and animal models. Results: Overexpression of CKAP4 occurred in 5% of ccRCC patients, who had significantly worsened prognosis...
2017: Journal of Cancer
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