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https://www.readbyqxmd.com/read/28737447/pmab-52-specific-and-sensitive-monoclonal-antibody-against-cat-podoplanin-for-immunohistochemistry
#1
Shinji Yamada, Shunsuke Itai, Takuro Nakamura, Miyuki Yanaka, Noriko Saidoh, Yao-Wen Chang, Saori Handa, Hiroyuki Harada, Yumiko Kagawa, Osamu Ichii, Satoru Konnai, Mika K Kaneko, Yukinari Kato
Podoplanin (PDPN) is expressed in several normal tissues, such as lymphatic endothelial cells, podocytes of renal glomerulus, and type I alveolar cells of lung. PDPN activates platelet aggregation by binding to C-type lectin-like receptor-2 (CLEC-2) on platelet. Although monoclonal antibodies (mAbs) against human PDPN, mouse PDPN, rat PDPN, rabbit PDPN, dog PDPN, and bovine PDPN have been established, anticat PDPN (cPDPN) mAbs have not been developed. In this study, we immunized mice with Chinese hamster ovary (CHO)-K1 cell lines expressing cPDPN, and developed anti-cPDPN mAbs...
July 24, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28716439/renal-cell-carcinoma-unclassified-with-medullary-phenotype-poorly-differentiated-adenocarcinomas-overlapping-with-renal-medullary-carcinoma
#2
Deepika Sirohi, Steven C Smith, Chisato Ohe, Piergiuseppe Colombo, Mukul Divatia, Ema Dragoescu, Priya Rao, Michelle S Hirsch, Ying-Bei Chen, Rohit Mehra, Mahul B Amin
Renal medullary carcinoma (RMC) is a highly aggressive renal cell carcinoma, arising in the collecting system, and requiring careful correlation with status of sickle cell trait. A panel of international experts has recently proposed provisional diagnostic terminology, renal cell carcinoma, unclassified, with medullary phenotype (RCCU-MP), based on encountering an extraordinarily rare tumor with RMC morphology and immunophenotype in an individual proven not to have a hemoglobinopathy. Herein, we extend this observation to a cohort of five such tumors, morphologically similar to RMC, lacking SMARCB1 expression by immunohistochemistry, but each without evidence of a hemoglobinopathy...
July 14, 2017: Human Pathology
https://www.readbyqxmd.com/read/28697319/renal-medullary-carcinoma-establishing-standards-in-practice
#3
Kathryn E Beckermann, Deva Sharma, Shruti Chaturvedi, Pavlos Msaouel, Miguel R Abboud, Yves Allory, Franck Bourdeaut, Julien Calderaro, Aguirre A de Cubas, Vimal K Derebail, Andrew L Hong, Rakhi P Naik, Gabriel G Malouf, Elizabeth A Mullen, Victor E Reuter, Charles W M Roberts, Cheryl L Walker, Christopher G Wood, Michael R DeBaun, Hendrik Van Poppel, Nizar M Tannir, W Kimryn Rathmell
Although renal medullary carcinoma (RMC) is a rare subtype of kidney cancer, it is particularly devastating in that it is nearly uniformly lethal. No established guidelines exist for the diagnosis and management of RMC. In April 2016, a panel of experts developed clinical guidelines on the basis of a literature review and consensus statements. The goal was to propose recommendations for standardized diagnostic and management approaches and to establish an international clinical registry and biorepository for RMC...
July 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/28693268/clinical-diagnosis-and-detection-of-genetic-mutations-of-pancreatic-metastases-a-report-of-four-cases-and-review-of-the-literature
#4
Ye Li, Zixiang Zhang, Yi Zhang, Jian Yang, Dongming Zhu, Dechun Li, Jian Zhou
The present study aimed to report our clinical experience regarding the diagnosis and detection of genetic mutations of pancreatic metastases, and to review the relevant literature to expand knowledge of this disease. A total of 4 cases involving pancreatic metastases, which were treated at The First Affiliated Hospital of Soochow University between January 2013 and July 2016, were retrospectively analyzed. This retrospective study considered the clinicopathological variables of the 4 patients, and compared this data with those from the literature, which was searched using PubMed, EMBASE and the Cochrane Library...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28693207/-99m-tc-lhrh-in-tumor-receptor-imaging
#5
Dawei Hao, Lingfei Sun, Xiang Hu, Xiaowen Hao
Detection of gonadotropin-releasing hormone (GnRH) also known as luteinizing hormone-releasing hormone (LHRH) in the relevant tumor tissue and normal tissues and organs in vivo expression was investigated. To examine the method of direct radio labeling of LHRH by (99m)Tc with relatively high radiochemical purity and stability, screening the best labeling conditions, to establish a simple and reliable method of preparation of (99m)Tc-LHRH was undertaken. The detection of radioisotope-labeled LHRH distribution in mice, LHRH receptor imaging for the study and treatment of cancer basis were evaluated...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28687956/cd163-positive-cancer-cells-are-potentially-associated-with-high-malignant-potential-in-clear-cell-renal-cell-carcinoma
#6
Chaoya Ma, Hasita Horlad, Koji Ohnishi, Takenobu Nakagawa, Sohsuke Yamada, Shohei Kitada, Takanobu Motoshima, Tomomi Kamba, Toshiyuki Nakayama, Naohiro Fujimoto, Motohiro Takeya, Yoshihiro Komohara
CD163 is preferentially expressed by monocyte/macrophages; however, recent studies using immunohistochemistry (IHC) have reported that some cancer cells also express CD163. In the present IHC study, we investigated CD163 staining of cancer cells and macrophages in clear cell renal cell carcinoma (ccRCC) tissues and determined the relationship between cancer cell CD163 expression and clinical prognosis in patients with ccRCC. IHC for CD163 was performed in ccRCC tissues from 103 patients. CD163-positive cancer cells were detected in 35% of the patients (36/103); however, the positive signals on cancer cells were significantly lower than those on macrophages...
July 7, 2017: Medical Molecular Morphology
https://www.readbyqxmd.com/read/28677779/kindlin%C3%A2-2-promotes-clear-cell-renal-cell-carcinoma-progression-through-the-wnt-signaling-pathway
#7
Muhan Li, Xuelian Pei, Guoliang Wang, Jun Zhan, Juan Du, Hao Jiang, Yan Tang, Hongquan Zhang, Huiying He
Kindlin‑2 is an integrin-interacting, FERM-domain containing protein, which plays a critical role in tumor progression. However, the specific role of Kindlin‑2 in renal cell carcinoma (RCC) progression has not been described. In this study we investigated the role of Kindlin‑2 in progression of clear cell RCC (CCRCC), which is the most common RCC subtype, and its underlying mechanisms. Immunohistochemistry studies show that expression of Kindlin‑2 in CCRCC is positively correlated with tumor grade, and Kindlin‑2 expression in advanced CCRCC with lymph node metastasis was greater than in localized CCRCC...
July 4, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28676444/the-expression-of-transglutaminase-2-tg-2-in-oral-squamous-cell-carcinoma-and-its-clinical-significance
#8
Elva Lim, Cheng-Hsien Wu, Sin-Hua Moi, Man-Tin Lui, Cheng-Hong Yang, Cheng-Chieh Yang
BACKGROUND: Glutamine has a very important role in the human body, including pH balance in an acidic environment, as well as supporting the TCA cycle in cancer cell growth. However, the expression of transglutaminase-2 (TG-2) in oral cancer growth related to renal function is unknown. Here we examined TG-2 and its expression as a prognostic tool. METHODS: Fifty-six oral squamous cell carcinoma (OSCC) tissues were collected with the inclusion of tumor in any region of oral area, and patients with creatinine (Cr) and blood urea nitrogen (BUN) results...
July 1, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28675457/metastatic-sarcomatoid-renal-cell-carcinoma-manifesting-as-a-subcutaneous-soft-tissue-mass
#9
Valentina Logunova, Olayemi Sokumbi, Kenneth A Iczkowski
Spindle cell lesions of the superficial soft tissues often pose a diagnostic challenge due to frequently non-specific clinico-radiologic presentation and overlapping microscopic features, therefore immunohistochemistry remains a favored approach in separating them.
July 4, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28672194/systematic-analysis-of-the-expression-of-the-mitochondrial-atp-synthase-complex-v-subunits-in-clear-cell-renal-cell-carcinoma
#10
Maria Brüggemann, Arabella Gromes, Mirjam Poss, Doris Schmidt, Niklas Klümper, Yuri Tolkach, Dimo Dietrich, Glen Kristiansen, Stefan C Müller, Jörg Ellinger
Mitochondrial dysfunction is common in cancer and the mitochondrial electron transport chain is often affected in carcinogenesis. To date, little is known about the expression of the ATP synthase subunits in clear cell renal cell carcinoma (ccRCC). The NextBio database was used to determine an expression profile of the ATP synthase subunits based on published microarray studies. We observed down-regulation of 23 out of 29 subunits of the ATP synthase. Differential expression was validated exemplarily for 12 genes (ATP5A1, ATP5B, ATPAF1, ATP5C1, ATP5D, ATP5O, ATP5F1, ATP5G1, ATP5G2, ATP5G3, ATP5I, ATP5S; screening cohort ccRCC n=18 and normal renal tissue n=10) using real-time PCR...
June 30, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28672019/phosphatase-and-tensin-homolog-pten-expression-on-oncologic-outcome-in-renal-cell-carcinoma-a-systematic-review-and-meta-analysis
#11
Lu Tang, Xintao Li, Yu Gao, Luyao Chen, Liangyou Gu, Jianwen Chen, Xiangjun Lyu, Yu Zhang, Xu Zhang
The phosphatase and tensin homolog (PTEN) gene is suggested to be a dormant tumor suppressor. However, the prognostic value of the loss of PTEN expression in renal cell carcinoma (RCC) remains controversial. Therefore, we conducted a meta-analysis to evaluate the association of PTEN expression with the clinicopathological presentations and outcomes of patients with RCC through immunohistochemistry staining analysis. We systematically searched for relevant studies in PubMed, Web of Science, and Embase until March 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28662997/next-generation-immunohistochemistry-emerging-substitutes-to-genetic-testing
#12
REVIEW
Juliana Andrici, Anthony J Gill, Jason L Hornick
The identification of at-risk kindreds facilitates screening and risk reduction strategies for patients with hereditary cancer predisposition syndromes. Recently, immunohistochemistry (IHC) has emerged as a cost-effective strategy for detecting or inferring the presence of mutations in both tumors and the germline of patients presenting with tumors associated with hereditary cancer predisposition syndromes. In this review we discuss the use of novel IHC markers, including PRKAR1A, β-catenin, SDHB, fumarate hydratase and 2SC, HRASQ61R, BAP1, parafibromin and glucagon, which have either established applications or show promise for surgical pathologists to complement morphological or clinical suspicion of hereditary cancer predisposition syndromes...
June 27, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28654655/the-prognostic-value-of-bap1-pbrm1-ps6-pten-tgase2-pd-l1-ca9-psma-and-ki-67-tissue-markers-in-localized-renal-cell-carcinoma-a-retrospective-study-of-tissue-microarrays-using-immunohistochemistry
#13
Sung Han Kim, Weon Seo Park, Eun Young Park, Boram Park, Jungnam Joo, Jae Young Joung, Ho Kyung Seo, Kang Hyun Lee, Jinsoo Chung
OBJECTIVE: To assess the prognostic roles of BAP1, PBRM1, pS6, PTEN, TGase2, PD-L1, CA9, PSMA, and Ki-67 tissue biomarkers in localized renal cell carcinoma (RCC). METHODS: Patients who underwent a nephrectomy during 1992-2015 and had a primary specimen of their kidney tumor were included. The nine tissue biomarkers were immunohistochemically stained on tissue microarrays of RCC, and the semi-quantitative H-score, including intensity score, was used to grade the sample...
2017: PloS One
https://www.readbyqxmd.com/read/28651491/manifestation-of-osteoblastic-phenotypes-in-the-sarcomatous-component-of-epithelial-carcinoma-and-sarcomatoid-carcinoma
#14
Yasutoshi Takashima, Teppei Murakami, Takao Inoue, Man Hagiyama, Azusa Yoneshige, Syunji Nishimura, Masao Akagi, Akihiko Ito
Epithelial carcinomas occasionally have sarcomatous components that consist primarily of spindle and cuboidal cells, which often resemble osteoblasts. Sarcomatoid carcinomas consist of similar cells. Recent studies have characterized these phenomena as a manifestation of epithelial-mesenchymal transition in carcinoma cells, but the mesenchymal phenotypes that manifest in sarcomatous cells of epithelial carcinomas are not well understood. Here, we examined the expression profiles of four osteoblastic differentiation biomarkers in the sarcomatous components of multiple carcinoma types, including five renal clear cell, four breast invasive ductal, two esophageal, one maxillary squamous cell, three larynx, three lung, one liver, and one skin sarcomatoid carcinoma...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28646318/primary-renal-paragangliomas-and-renal-neoplasia-associated-with-pheochromocytoma-paraganglioma-analysis-of-von-hippel-lindau-vhl-succinate-dehydrogenase-sdhx-and-transmembrane-protein-127-tmem127
#15
Sounak Gupta, Jun Zhang, Dragana Milosevic, John R Mills, Stefan K Grebe, Steven C Smith, Lori A Erickson
Alterations of von Hippel-Lindau (VHL), succinate dehydrogenase (SDHX), and TMEM127 have been associated with the development of pheochromocytomas (PCs) and paragangliomas (PGLs) and are also associated with the development of renal neoplasms. This study involved 2 primary renal PGL and 12 cases of PC/PGL with associated renal neoplasia with a mean follow up of 74 months. Germline VHL and SDHX mutation status was obtained from the medical record. Immunohistochemistry for SDHB and mutation analysis for TMEM127 was performed, in addition to analysis of The Cancer Genome Atlas datasets for SDHX and TMEM127 mutated renal cell carcinomas (RCCs)...
June 23, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28635231/-comparison-of-paired-box-genes-8-and-2-expression-in-epithelium-tissues-and-the-related-tumors
#16
Y Song, X Huang, G H Shen, X Y Liu, X Zhang
Objective: To explore the expressional differences between paired box genes 2(Pax2) and 8 (Pax8) protein in different kinds of epitheliums and tumors, and to investigate the clinicopathologic significance. Methods: Expression levels of Pax2 and Pax8 protein were detected in 75 cases of different human epithelium tissues and 255 cases of different tumors on tissue microarray by immunohistochemistry. Results: Pax2 and Pax8 selectively expressed in different tissues. The positive rates of Pax8 protein expressed in the normal epithelium of the thyroid, urinary system and female reproductive system were 100% (2/2), 60...
June 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28634564/pax8-distinguishes-diffuse-large-b-cell-lymphoma-mimicking-sarcoma
#17
Michelle S Hirsch, Alessandra F Nascimento
PAX8 is important for embryogenesis of the thyroid, Müllerian system, and upper urinary/renal tract, and expression of PAX8 has been described in carcinomas from each of these sites. The sensitivity and specificity of the polyclonal PAX8 antibody in a large cohort of epithelial tumors as well as lymphomas have been previously determined, the latter because polyclonal PAX8 is known to be immunoreactive in nonneoplastic B-cell lymphocytes which are often used as the positive internal control for immunohistochemistry...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28619634/enhancement-of-siglec-8-expression-predicts-adverse-prognosis-in-patients-with-clear-cell-renal-cell-carcinoma
#18
Chenzhang Ou, Li Liu, Jiajun Wang, Siyuan Dai, Yang Qu, Ying Xiong, Wei Xi, Jiejie Xu, Jianming Guo
PURPOSE: Sialic acid-binding immunoglobulin-like lectins (siglecs) family has important functions in tumor progression. The purpose of our study is to figure out the correlation between the expression level of Siglec-8 and prognosis of patients with clear cell renal cell carcinoma (ccRCC), and then to predict the overall survival (OS) via a novel nomogram. MATERIALS AND METHODS: A group of patients (n = 267) histologically diagnosed with ccRCC from Zhongshan Hospital were included into our study...
June 12, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28617974/high-expression-of-heat-shock-proteins-and-heat-shock-factor-1-distinguishes-an-aggressive-subset-of-clear-cell-renal-cell-carcinoma
#19
Pao-Shu Wu, Yen-Hwa Chang, Chin-Chen Pan
AIMS: Heat shock proteins (HSPs) are a group of molecules induced by a variety of environmental and pathophysiologic stresses, including cancer. HSPs are implicated in the regulation of apoptosis and immunity in neoplasm. Transcription factor heat shock factor1 (HSF1) acts as the master regulator to control HSP expression, and therefore is involved in tumorigenesis. The purpose of this study was to evaluate the expression and clinicopathologic relevance of HSPs and HSF1 in clear cell renal cell carcinoma (ccRCC)...
June 15, 2017: Histopathology
https://www.readbyqxmd.com/read/28607325/implication-of-phf2-expression-in-clear-cell-renal-cell-carcinoma
#20
Cheol Lee, Bohyun Kim, Boram Song, Kyung Chul Moon
Background: Clear cell renal cell carcinoma (CCRCC) is presumed to be associated with adipogenic differentiation. Histone modification is known to be important for adipogenesis, and the function of histone demethylase plant homeodomain finger 2 (PHF2) has been noted. In addition, PHF2 may act as a tumor suppressor via epigenetic regulation of p53 and is reported to be reduced in colon cancer and stomach cancer tissues. In this study, we examined PHF2 expression in CCRCC specimens by immunohistochemistry...
June 13, 2017: Journal of Pathology and Translational Medicine
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