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Immunohistochemistry

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https://www.readbyqxmd.com/read/28231690/downregulation-of-hur-inhibits-the-progression-of-esophageal-cancer-through-interleukin-18
#1
Xiaohui Xu, Cheng Song, Zhihua Chen, Chenxiao Yu, Yi Wang, Yiting Tang, Judong Luo
Purpose: To investigate the effect of HuR downregulation and the potential target genes of HuR on the progression of esophageal squamous cell carcinoma (ESCC). Materials and Methods: In this study, a proteomics assay was used to detect the expression of proteins after HuR downregulation, and a luciferase assay was used to detect the potential presence of a HuR binding site on the 3'-UTR of IL-18. In addition, colony formation assay, MTT, EdU incorporation assay, Western blot, flow cytometry, immunohistochemistry, transwell invasion assay and wound healing assay were used...
February 24, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28231581/prognostic-markers-and-histologic-subtypes-in-patients-with-meningeal-carcinomatosis-in-breast-cancer
#2
Hussein Alnajar, Lauren Rosen, Sara Javidiparsijani, Yahya Al-Ghamdi, Paolo Gattuso
OBJECTIVE: Meningeal carcinomatosis (MC) is a rare complication in breast cancer patients. It is defined as a diffuse or multifocal leptomeningeal metastasis. STUDY DESIGN: From our institution database, we retrospectively studied 19 patients diagnosed with MC in the cerebrospinal fluid (CSF) in 1997-2015, in order to evaluate tumor prognostic markers, histologic subtypes, and clinical outcome. RESULTS: All patients were female, with a mean age of 53 years (range 36-75 years)...
February 24, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28231568/fiber-connections-of-the-caudal-corpus-cerebelli-with-special-reference-to-the-intrinsic-circuitry-in-a-teleost-oreochromis-niloticus
#3
Kosuke Imura, Naoyuki Yamamoto, Masami Yoshimoto, Masato Endo, Kengo Funakoshi, Hironobu Ito
The caudal part of the corpus cerebelli of Nile tilapia can be divided into dorsal and ventral regions. The granule cell layer of the dorsal (dGL) and ventral (vGL) regions of the caudal corpus cerebelli is known to receive indirect inputs from the telencephalon relayed by the nucleus paracommissuralis. The descending pathways are topographically organized, and the dGL and vGL receive inputs from different dorsal telencephalic parts. The caudal corpus cerebelli, in turn, projects extracerebellar efferents. However, it remains unknown how the descending telencephalic inputs are processed within the cerebellum...
February 24, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/28231386/evaluating-the-effectiveness-of-rna-in-situ-hybridization-for-detecting-lung-adenocarcinoma-with-anaplastic-lymphoma-kinase-rearrangement
#4
Naoki Nakajima, Akihiko Yoshizawa, Kyoko Kondo, Mariyo Rokutan-Kurata, Masahiro Hirata, Ayako Furuhata, Shinji Sumiyoshi, Makoto Sonobe, Toshi Menju, Masanobu Momose, Masakazu Fujimoto, Hiroshi Date, Hironori Haga
AIMS: An easy and rapid assay for detecting mRNA in formalin-fixed paraffin-embedded samples (RNA-in situ hybridization; RNA-ISH) has been reported recently. We investigated the diagnostic accuracy of RNA-ISH for detecting lung adenocarcinoma (LA) with anaplastic lymphoma kinase (ALK) gene rearrangement. METHODS AND RESULTS: We tested ALK RNA-ISH on 11 resected LAs for which ALK fusion was confirmed by immunohistochemistry (IHC) and/or fluorescence in situ hybridization (FISH)...
February 23, 2017: Histopathology
https://www.readbyqxmd.com/read/28230773/programmed-death-ligand-1-pd-l1-tumor-expression-is-associated-with-a-better-prognosis-and-diabetic-disease-in-triple-negative-breast-cancer-patients
#5
Gerardo Botti, Francesca Collina, Giosuè Scognamiglio, Federica Rao, Valentina Peluso, Rossella De Cecio, Michela Piezzo, Gabriella Landi, Michelino De Laurentiis, Monica Cantile, Maurizio Di Bonito
Triple Negative Breast Cancers (TNBC) subtype is an aggressive disease with poor clinical outcome. The only treatment available is surgery followed by chemotherapy or radiotherapy. Programmed death-ligand 1 (PD-L1) is a trans-membrane protein expressed on a wide variety of cells including immune cells, epithelial and vascular endothelial cells. Recently, PD-1/PD-L1 pathway signaling was described as an adaptive immune resistance mechanism enacted by the tumor cells to evade the immune response. Its presence on tumor cell membranes, acquired for this reason, through time, is an important prognostic value...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230352/disease-modifying-effects-of-m1-muscarinic-acetylcholine-receptor-activation-in-an-alzheimer-s-disease-mouse-model
#6
Evan P Lebois, Jason P Schroeder, Thomas J Esparza, Thomas M Bridges, Craig W Lindsley, P Jeffrey Conn, David L Brody, John Scott Daniels, Allan I Levey
Alzheimer's Disease (AD) is the leading cause of dementia worldwide and currently no disease-modifying therapy is available to slow or prevent AD, underscoring the urgent need for neuroprotective therapies. Selective M1 muscarinic acetylcholine receptor (mAChR) activation is an attractive mechanism for AD therapy since M1 mediates key effects on memory, cognition, and behavior and has potential for disease-modifying effects on Aβ formation and tau phosphorylation. To validate M1 as a neuroprotective treatment target for AD, the M1-selective agonist, VU0364572, was chronically dosed to 5XFAD mice from a young age preceding Aβ pathology (2 months) to an age where these mice are known to display memory impairments (6 months)...
February 23, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28230179/crowdsourcing-scoring-of-immunohistochemistry-images-evaluating-performance-of-the-crowd-and-an-automated-computational-method
#7
Humayun Irshad, Eun-Yeong Oh, Daniel Schmolze, Liza M Quintana, Laura Collins, Rulla M Tamimi, Andrew H Beck
The assessment of protein expression in immunohistochemistry (IHC) images provides important diagnostic, prognostic and predictive information for guiding cancer diagnosis and therapy. Manual scoring of IHC images represents a logistical challenge, as the process is labor intensive and time consuming. Since the last decade, computational methods have been developed to enable the application of quantitative methods for the analysis and interpretation of protein expression in IHC images. These methods have not yet replaced manual scoring for the assessment of IHC in the majority of diagnostic laboratories and in many large-scale research studies...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230172/evidence-for-critical-role-of-lymphocyte-cytosolic-protein-1-in-oral-cancer
#8
Nao Koide, Atsushi Kasamatsu, Yosuke Endo-Sakamoto, Sho Ishida, Toshihiro Shimizu, Yasushi Kimura, Isao Miyamoto, Shusaku Yoshimura, Masashi Shiiba, Hideki Tanzawa, Katsuhiro Uzawa
Lymphocyte cytosolic protein 1 (LCP1), a member of actin-binding protein of the plastin family, has been identified in several malignant tumors of non-hematopoietic sites, such as the colon, prostate, and breast. However, little is known about the roles of LCP1 in oral squamous cell carcinomas (OSCCs). This present study sought to clarify the clinical relevance of LCP1 in OSCCs and investigate possible clinical applications for treating OSCCs by regulating LCP1 expression. We found up-regulation of LCP1in OSCCs compared with normal counterparts using real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR), immunoblotting, and immunohistochemistry (P < 0...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28230028/leucine-rich-repeats-and-immunoglobulin-like-domains-protein-1-and-fascin-actin-bundling-protein-1-expression-in-nonsmall-cell-lung-cancer
#9
Juanjuan Zhang, Xiaoyan Wang, Yijie Zhang, Jingcan Wu, Nannan Zhou
OBJECTIVE: To assess the clinical significance of leucine-rich repeats and immunoglobulin-like domains protein 1 (LRIG1) and fascin actin-bundling protein 1 (Fascin-1) expression in nonsmall cell lung cancer (NSCLC). MATERIALS AND METHODS: Six-one NSCLC patients were included in this study. The expression of LRIG1 and Fascin-1 was assayed in the tumor tissue and relative normal lung tissue of the 61 NSCLC patients by immunohistochemistry. The relationship between LRIG1, Fascin-1 expression pattern and lung cancer patients' clinical pathology characteristics was evaluated...
December 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28229992/increased-5-hydroxymethylcytosine-and-ten-eleven-translocation-protein-expression-in-ultraviolet-b-irradiated-hacat-cells
#10
Dan Wang, Jin-Hua Huang, Qing-Hai Zeng, Can Gu, Shu Ding, Jian-Yun Lu, Jing Chen, Sheng-Bo Yang
BACKGROUND: DNA hydroxymethylation refers to a chemical modification process in which 5-methylcytosine (5mC) is catalyzed to 5- hydroxymethylcytosine (5hmC) by ten-eleven translocation (TET) family proteins. Recent studies have revealed that aberrant TETs expression or 5hmC level may play important roles in the occurrence and development of various pathological and physiological processes including cancer and aging. This study aimed to explore the relation between aberrant DNA hydroxymethylation with skin photoaging and to investigate the levels of TETs, 5mC, and 5hmC expression 24 h after 40 mJ/cm2 and 80 mJ/cm2 doses of ultraviolet B (UVB) irradiation to HaCaT cells...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28229972/early-life-stress-experience-may-blunt-hypothalamic-leptin-signalling
#11
J H Lee, S B Yoo, J Y Kim, J Y Lee, B T Kim, K Park, J W Jahng
The aim of this study was to investigate whether neonatal maternal separation (MS) - chronic stress experience in early life - affects the anorectic efficacy of leptin in the offspring at adolescence. Sprague-Dawley pups were separated from the dam daily for 3 h during postnatal day 1-14 or left undisturbed as non-handled controls (NH). NH and MS male pups received an intraperitoneal leptin (100 μg/kg) or saline on postnatal day (PND) 28, and then food intake and body weight gain were recorded. The hypothalamic levels of leptin-signalling-related genes, phosphorylated signal transducer and activator of transcription-3 (pSTAT3) and protein-tyrosine phosphatase 1B (PTP1B) were examined at 40 min after a single injection of leptin on PND 39 by immunohistochemistry and Western blot analysis...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28229936/neurons-of-the-rat-cervical-spinal-cord-express-vimentin-and-neurofilament-after-intraparenchymal-injection-of-kainic-acid
#12
Fabián Nishida, Susana M Sisti, Carolina N Zanuzzi, Claudio G Barbeito, Enrique L Portiansky
Intermediate filaments (IF) can be altered under disorders such as neurodegenerative diseases. Kainic acid (KA) induce behavioral changes and histopathological alterations of the spinal cord of injected rats. Our goal was to evaluate the IF expression in neurons during this injury model. Animals were injected with KA at the C5 segment of the cervical spinal cord and euthanized at 1, 3 and 7 post injection (pi) days. Neuronal cell counting showed a significant loss of neurons at the injection site when compared with those of sham and non-operated animals...
February 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28229842/-thyroid-metastasis-as-the-initial-presentation-of-an-asymptomatic-clear-cell-renal-carcinoma
#13
Janine Carmelino, Ana Paula Tavares, Ana Crespo, José Mário Coutinho, António Lázaro, Vasco Ribeiro, Eduardo Barroso
INTRODUCTION: Clear cell renal carcinoma metastases to the thyroid gland are rare and only diagnosable after an immunohistochemistry analysis of the histological sample. The purpose of this article is to report a case of thyroid metastasis as the initial presentation of a clear cell renal carcinoma. CASE REPORT: Male patient with a solid nodule in the left lobe of the thyroid, 5.3 cm in diameter, suspicious of malignancy, for which a total thyroidectomy with central compartment lymphadenectomy was performed...
November 2016: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28229621/caveolin-1-expression-favors-tumor-growth-and-is-associated-with-poor-survival-in-primary-lung-adenocarcinomas
#14
Eleonora Duregon, Rebecca Senetta, Luca Bertero, Benedetta Bussolati, Laura Annaratone, Alessandra Pittaro, Mauro Papotti, Caterina Marchiò, Paola Cassoni
Despite the consolidated clinico-pathological correlates of Caveolin 1 expression in non-small cell lung cancer, the available data on the role of Caveolin 1 in relation to proliferation, migration, and metastasis in lung adenocarcinoma cells is still scant. Here, we aimed to confirm whether Caveolin 1 may act as a promoter of cell growth in human lung adenocarcinoma using in vitro and in vivo models, supported by a survival analysis of Caveolin 1 expression in a series of 116 primary lung adenocarcinomas. The silencing of endogenous Caveolin 1 expression in H522 lung adenocarcinoma cells through stable shRNA transfection significantly inhibited cellular proliferation in vitro and in vivo, in a lung adenocarcinoma xenograft mouse model...
February 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28229554/comparison-of-egg-envelope-thickness-in-teleosts-and-its-relationship-to-the-sites-of-zp-protein-synthesis
#15
Kaori Sano, Mari Kawaguchi, Keita Katano, Kenji Tomita, Mayu Inokuchi, Tatsuki Nagasawa, Junya Hiroi, Toyoji Kaneko, Takashi Kitagawa, Takafumi Fujimoto, Katsutoshi Arai, Masaru Tanaka, Shigeki Yasumasu
Teleost egg envelope generally consists of a thin outer layer and a thick inner layer. The inner layer of the Pacific herring egg envelope is further divided into distinct inner layers I and II. In our previous study, we cloned four zona pellucida (ZP) proteins (HgZPBa, HgZPBb, HgZPCa, and HgZPCb) from Pacific herring, two of which (HgZPBa and HgZPCa) were synthesized in the liver and two (HgZPBb and HgZPCb) in the ovary. In this study, we raised antibodies against these four proteins to identify their locations using immunohistochemistry...
February 23, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28229367/inhibition-of-mtor-pathway-by-rapamycin-decreases-p-glycoprotein-expression-and-spontaneous-seizures-in-pharmacoresistant-epilepsy
#16
Xiaosa Chi, Cheng Huang, Rui Li, Wei Wang, Mengqian Wu, Jinmei Li, Dong Zhou
The mammalian target of rapamycin (mTOR) has been demonstrated to mediate multidrug resistance in various tumors by inducing P-glycoprotein (P-gp) overexpression. Here, we investigated the correlation between the mTOR pathway and P-gp expression in pharmacoresistant epilepsy. Temporal cortex specimens were obtained from patients with refractory mesial temporal lobe epilepsy (mTLE) and age-matched controls who underwent surgeries at West China Hospital of Sichuan University between June 2014 and May 2015. We established a rat model of epilepsy kindled by coriaria lactone (CL) and screened pharmacoresistant rats (non-responders) using phenytoin...
February 22, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28229225/implications-of-sdhb-genetic-testing-in-patients-with-sporadic-pheochromocytoma
#17
Aurelie Maignan, Carole Guerin, Valentin Julliard, Nunzia-Cinzia Paladino, Edward Kim, Philippe Roche, Fréderic Castinetti, Wassim Essamet, Julien Mancini, Alessio Imperiale, Roderick Clifton-Bligh, Pauline Romanet, Anne Barlier, Karel Pacak, Fréderic Sebag, David Taïeb
PURPOSE: Succinate dehydrogenase B (SDHB) associated pheochromocytomas (PHEOs) are associated with a higher risk of tumor aggressiveness and malignancy. The aim of the present study was to evaluate (1) the frequency of germline SDHB mutations in apparently sporadic patients with PHEO who undergo preoperative genetic testing and (2) the ability to predict pathogenic mutations. METHODS: From 2012 to 2016, 82 patients underwent a PHEO surgical resection. Sixteen were operated in the context of hereditary PHEO and were excluded from analysis...
February 22, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28229220/overexpression-of-hepacam-inhibits-bladder-cancer-cell-proliferation-and-viability-through-the-akt-foxo-pathway
#18
Min Tang, Yan Zhao, Nanjing Liu, E Chen, Zhen Quan, Xiaohou Wu, Chunli Luo
PURPOSE: HepaCAM, an N-linked glycoprotein that encodes a member of the immunoglobulin superfamily, has been reported to be a tumor suppressor gene that mediates diverse cellular bio-functions. Recent studies have shown that the FoxO transcription factors play a pivotal role during cancer progression. Here, we explored the correlation between HepaCAM and the FoxO family via regulation of the PI3K/AKT pathway. METHODS: HepaCAM and FoxO3 expression were detected by immunohistochemistry staining...
February 22, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28229212/the-effect-of-a-cyclic-uniaxial-strain-on-urinary-bladder-cells
#19
Dorien Tiemessen, Paul de Jonge, Willeke Daamen, Wout Feitz, Paul Geutjes, Egbert Oosterwijk
PURPOSE: Pre-conditioning of a cell seeded construct may improve the functional outcome of a tissue engineered construct for augmentation cystoplasty. The precise effects of mechanical stimulation on urinary bladder cells in vitro are not clear. In this study we investigate the effect of a cyclic uniaxial strain culture on urinary bladder cells which were seeded on a type I collagen scaffold. METHODS: Isolated porcine smooth muscle cells or urothelial cells were seeded on a type I collagen scaffolds and cultured under static and dynamic conditions...
February 23, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28228691/overexpression-of-suppressor-of-zest-12-is-associated-with-cervical-node-metastasis-and-unfavorable-prognosis-in-tongue-squamous-cell-carcinoma
#20
Huijun Hu, Yi Wang, Zhongwu Li, Yumin Zhu, Wei Zhang, Dongmiao Wang, Tangyi Lin, Jianrong Yang, Yanling Wang, Jie Cheng
OBJECTIVE: Increased expression of suppressor of zest 12 (SUZ12), a core component of the polycomb repressive complex 2, contributes to human tumorigenesis and associates with patient prognosis. In the present study, we sought to investigate the expression of SUZ12 and its clinicopathological significance in primary tongue squamous cell carcinoma (TSCC). METHODS: The expression of SUZ12 protein was determined by immunohistochemistry in clinical samples from a retrospective cohort of 72 patients with primary TSCC who were treated at our institution from Jan...
2017: Cancer Cell International
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