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rabbit monoclonal antibody

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https://www.readbyqxmd.com/read/28097685/cartilage-oligomeric-matrix-protein-comp-neo-epitope-in-the-synovial-fluid-of-horses-with-acute-lameness-a-new-biomarker-for-the-early-stages-of-osteoarthritis
#1
E Skiöldebrand, S Ekman, L MattssonHultén, E Svala, K Björkman, A Lindahl, A Lundqvist, P Önnerfjord, C Sihlbom, U Rüetschi
BACKGROUND: Clinical tools to diagnose the early changes of osteoarthritis (OA) that occur in the articular cartilage are lacking. OBJECTIVES: We sought to identify and quantify a novel cartilage oligomeric matrix protein (COMP) neo-epitope in the synovial fluid from the joints of healthy horses and those with different stages of OA. STUDY DESIGN: In vitro quantitative proteomics and assay development with application in synovial fluids samples obtained from biobanks of well-characterised horses...
January 17, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28093480/comprehensive-screening-for-pd-l1-expression-in-thyroid-cancer
#2
Soomin Ahn, Tae Hyuk Kim, Sun Wook Kim, Chang Seok Ki, Hye Won Jang, Jee Soo Kim, Jung Han Kim, Jun-Ho Choe, Jung Hee Shin, Soo Yeon Hahn, Young Lyun Oh, Jae Hoon Chung
PD-L1 expression is being considered a potential biomarker for response of anti-PD-1 or anti-PD-L1 agents in various tumors. The reported frequency of PD-L1 positivity varies in thyroid carcinomas, and multiple factors may contribute to the variability in PD-L1 positivity. We evaluated the PD-L1 expression in various thyroid cancers on a large scale. A total of 407 primary thyroid cancers with a median 13.7-year of follow-up were included. We evaluated the frequency of PD-L1 expression using a rabbit monoclonal antibody (clone SP142)...
February 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28088280/comparative-study-of-colloidal-gold-and-quantum-dots-as-labels-for-multiplex-screening-tests-for-multi-mycotoxin-detection
#3
Astrid Foubert, Natalia V Beloglazova, Sarah De Saeger
Quantum dots (QDs) and colloidal gold nanoparticles (CG) were evaluated as labels for multiplex lateral flow immunoassay (LFIA) for determination of mycotoxins deoxynivalenol (DON), zearalenone (ZEN) and T2/HT2-toxin (T2/HT2) in cereal matrices. Both developed assays were based on the same immunoreagents (except for the labels), therefore their analytical characteristics could be objectively compared. For both LFIAs antigens (DON-ovalbumin (OVA), ZEN-OVA and T2-OVA) and rabbit anti-mouse immunoglobulin were immobilized on a nitrocellulose membrane as three test lines and one control line, respectively...
February 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28081478/pulmonary-sarcomatoid-carcinoma-with-alk-rearrangement-frequency-clinical-pathologic-characteristics-and-response-to-alk-inhibitor
#4
Xinru Chen, Yu Zhang, Jiabin Lu, Chunwei Xu, Jianzhong Liang, Fang Wang, Wenyong Sun, Sangao Fang, Jingping Yuan, Huijuan Wang, Hui Wang, Xuewen Liu, Likun Chen
PURPOSE: The incidence of anaplastic lymphoma kinase (ALK) rearrangement in pulmonary sarcomatoid carcinoma (PSC) is controversial. In this study, we aimed to reveal the reliable frequency and the clinical-pathologic characteristics of pulmonary sarcomatoid carcinoma (PSC) with ALK rearrangement in Chinese population, and to provide insight into the translatability of anti-ALK treatment in this treatment-refractory disease. METHODS: Immunohistochemistry (IHC) using a Ventana anti-ALK (D5F3) rabbit monoclonal antibody was performed in 141 PSC specimens collected from multiple medical centers...
January 9, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28064410/detecting-n-ras-q61r-mutated-thyroid-neoplasias-by-immunohistochemistry
#5
A Crescenzi, F Fulciniti, M Bongiovanni, L Giovanella, Pierpaolo Trimboli
Recently, the immunohistochemistry (IHC) for N-RAS Q61R has been developed and commercialized for clinical practice. Here, we investigated the reliability of IHC to identify N-RAS Q61R mutated thyroid neoplasia. A series of 24 consecutive thyroid lesions undergone surgery following indeterminate cytology were enrolled. Paraffin sections were stained for IHC using the rabbit monoclonal anti-human N-RAS Q61R, clone SP174. N-RAS mutations in codon 61 were also investigated by automated sequencing. At histology, 12 cases of follicular carcinoma, cytologically defined as follicular lesions, 1 papillary cancer, 7 follicular adenomas, and 4 hyperplastic nodules were found...
January 7, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28056299/-application-of-rabbit-monoclonal-antibody-gcet2-in-diagnosis-of-diffuse-large-b-cell-lymphoma
#6
H Y Pan, X X Zhang, Y Y Weng, R Zhou
Objective: To prepare a rabbit monoclonal antibody GCET2 and to investigate its diagnostic value in the workup of diffuse large B-cell lymphoma (DLBCL). Methods: GCET2 rabbit monoclonal antibody was developed by using RabMAb(®) technology, and its specificity was confirmed by ELISA, Western blot, immunohistochemistry (IHC) and flow cytometry. A panel of immunomarkers including GCET2, CD10, bcl-6, MUM1, GCET1, FOXP1, Ki-67 and CMYC was evaluated in 81 cases of DLBCLs, 5 cases of follicular lymphomas (FL) and 2 cases of Burkitt's lymphomas...
December 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28052816/n-terminal-skik-peptide-tag-markedly-improves-expression-of-difficult-to-express-proteins-in-escherichia-coli-and-saccharomyces-cerevisiae
#7
Teruyo Ojima-Kato, Satomi Nagai, Hideo Nakano
Despite advances in microbial protein expression systems, low production of proteins remains a great concern for some genes. Here we report that the insertion of a short peptide tag, consisting of Ser-Lys-Ile-Lys (SKIK), adjacent to the start codon of genes encoding difficult-to-express proteins can increase protein expression in Escherichia coli and Saccharomyces cerevisiae. Protein expression levels of a mouse monoclonal antibody (mAb), rabbit mAbs obtained from clonal B cells, and an artificially designed peptide were significantly increased simply by the addition of the SKIK tag in E...
January 2, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28041932/quantification-of-human-diamine-oxidase
#8
Thomas Boehm, Sophie Pils, Elisabeth Gludovacz, Helen Szoelloesi, Karin Petroczi, Otto Majdic, Andrea Quaroni, Nicole Borth, Peter Valent, Bernd Jilma
OBJECTIVES: Diamine oxidase (DAO) is essential for extracellular degradation of histamine. For decades activity assays with inherent limitations were used to quantify the relative amounts of DAO. No reference DAO standard is available. Absolute DAO amounts cannot be determined. Controversy exists, whether DAO is circulating or not in non-pregnant individuals. The role of DAO as biomarker in various diseases is ambiguous. It is not clear, whether precise quantification of human DAO antigen using commercially available enzyme-linked immunosorbent assays (ELISAs) is possible...
December 29, 2016: Clinical Biochemistry
https://www.readbyqxmd.com/read/28034455/proliferative-enteropathy-caused-by-lawsonia-intracellularis-in-chickens
#9
T Ohta, K Kimura, K Katsuda, H Kobayashi, O Mikami, M Haritani, T Onodera
Proliferative enteropathy (PE) is an infectious disease caused by Lawsonia intracellularis (Li), an obligate intracellular bacterium. PE is endemic in swine herds and has been reported in a variety of mammals including horses, hamsters, rabbits, rats, guinea pigs, ferrets, foxes, dogs, sheep, deer and non-human primates. Avian cases are reported only in ratite birds, including emus and ostriches. Some studies show an absence of Lawsonia spp. infection in chickens. In this study, we performed morphological and bacteriological examinations on the intestines of two broiler chickens that had been condemned at a poultry slaughter plant in Japan due to intestinal haemorrhage, which was a result of focal coccidial enteritis...
December 26, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28027872/the-effect-of-platelet-rich-plasma-on-achilles-tendon-healing-in-a-rabbit-model
#10
Masaki Takamura, Toshito Yasuda, Atsushi Nakano, Hiroaki Shima, Masashi Neo
OBJECTIVE: The aim of the present study was to evaluate the effects of PRP on Achilles tendon healing in rabbits during the inflammatory, proliferative, and remodeling phases by histological examination and quantitative assessments. METHODS: Fifty mature male Japanese albino rabbits with severed Achilles tendons were divided into two equal groups and treated with platelet-rich plasma (PRP) or left untreated. Tendon tissue was harvested at 1, 2, 3, 4, and 6 weeks after treatment, and sections were stained with hematoxylin-eosin and monoclonal antibodies against CD31 and type I collagen...
December 24, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28009608/fosb-is-a-useful-diagnostic-marker-for-pseudomyogenic-hemangioendothelioma
#11
Yin P Hung, Christopher D M Fletcher, Jason L Hornick
Pseudomyogenic (epithelioid sarcoma-like) hemangioendothelioma is a distinctive vascular neoplasm of intermediate biological potential with a predilection for young adults and frequent multifocal presentation. Pseudomyogenic hemangioendothelioma is characterized by loose fascicles of plump spindled and epithelioid cells with abundant eosinophilic cytoplasm and coexpression of keratins and endothelial markers. Recently, a SERPINE1-FOSB fusion has been identified as a consistent genetic alteration in pseudomyogenic hemangioendothelioma...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28007038/semi-quantitative-method-for-staphylococci-magnetic-detection-in-raw-milk
#12
Carla Margarida Duarte, Carla Carneiro, Susana Cardoso, Paulo Peixeiro Freitas, Ricardo Bexiga
Bovine mastitis is the most costly disease for dairy farmers, hence, control measures to prevent it are crucial for dairy farm sustainability. Staphylococcus aureus is considered a major mastitis pathogen because of its impact on milk quality and low cure rates. Prevention of S. aureus mastitis includes segregation of infected animals, whilst treatment of such animals should be performed for a longer time to improve cure rates. This makes identification of S. aureus infected quarters and animals of significant importance...
December 23, 2016: Journal of Dairy Research
https://www.readbyqxmd.com/read/27999842/reduced-skin-blistering-in-experimental-epidermolysis-bullosa-acquisita-after-anti-tnf-treatment
#13
Misa Hirose, Anika Kasprick, Foteini Beltsiou, Katharina Schulze Dieckhoff, Franziska Sophine Schulze, Unni Kjsrl Samavedam, Jennifer E Hundt, Hendri H Pas, Marcel F Jonkman, Enno Schmidt, Kathrin Kalies, Detlef Zillikens, Ralf J Ludwig, Katja Bieber
Epidermolysis bullosa acquisita (EBA) is a difficult-to-treat subepidermal autoimmune blistering skin disease (AIBD) with circulating and tissue-bound anti-type VII collagen antibodies. Different reports have indicated an increased concentration of tumor necrosis factor alpha (TNF) in the serum and blister fluid of patients with subepidermal AIBDs. Furthermore, successful anti-TNF treatment has been reported for individual patients with AIBDs. Here, we show that in mice, induction of experimental EBA by repeated injections of rabbit-anti mouse type VII collagen antibodies led to increased expression of TNF in skin, as determined by real-time PCR and immunohistochemistry...
December 20, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27940044/immunochromatographic-detection-of-the-heat-labile-enterotoxin-of-enterotoxigenic-escherichia-coli-with-cross-detection-of-cholera-toxin
#14
Hideyuki Arimitsu, Keiko Sasaki, Takao Tsuji
Here, we report the development of an immunochromatographic test strip that can detect heat-labile enterotoxin (LT) produced by enterotoxigenic Escherichia coli. Five types of monoclonal antibody (mAb)-producing hybridomas were isolated: three mAbs were A subunit specific and two were B subunit specific. Four mAbs also cross-reacted with both LT proteins derived from swine and human E. coli strains, but only one mAb 57B9 additionally cross-reacted with cholera toxin. Thus, mAb 57B9 was used to form a gold colloid-conjugated antibody for the immunochromatographic test by combination with polyclonal anti-LT rabbit IgG...
January 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27939494/features-of-endothelial-dysfunction-and-morphofunctional-changes-of-the-uteroplacental-complex-in-experimentally-induced-pre-eclampsia
#15
I N Tyurenkov, V N Perfilova, A V Smirnov, L B Reznikova, A V Poroyskaya, V E Verovsky
BACKGROUND: Pre-eclampsia is considered to be a severe complication of pregnancy. Theoretical investigation of its etiology and pathogenesis, development of strategies for its prevention and treatment are conditioned by the development of appropriate experimental models of this pathology. METHODS: The study involved Wistar rat lines weighing 220-240g. Experimental pre-eclampsia was modeled by replacing drinking water consumed by pregnant female rats with 1.8% NaCl solution throughout gestation...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27934109/in-vivo-biotransformation-of-the-fusion-protein-tetranectin-apolipoprotein-a1-analyzed-by-ligand-binding-mass-spectrometry-combined-with-quantitation-by-elisa
#16
Manfred Zell, Christophe Husser, Roland F Staack, Gregor Jordan, Wolfgang F Richter, Simone Schadt, Axel Pähler
The in vivo biotransformation of a novel fusion protein tetranectin/apolipoprotein A1 (TN-ApoA1) was investigated by ligand-binding mass spectrometry (LB-MS) in support of enzyme-linked immunosorbent assays (ELISA). The main focus was on catabolites formed by proteolysis of the fusion protein in rabbit following intravenous administration of lipidated TN-ApoA1. The drug and its catabolites were isolated from rabbit plasma by immunocapture with a monoclonal antibody (mAb) binding to the fusion region of TN-ApoA1...
December 6, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27933065/current-challenges-and-limitations-in-antibody-based-detection-of-citrullinated-histones
#17
Indira Neeli, Marko Radic
Studies on NETosis demand reliable and convenient markers to monitor the progress of this form of cell death. Because a determining step in the release of nuclear chromatin NETs requires the conversion of arginine residues to citrulline residues in histones by peptidylarginine deiminase, citrullinated histones can provide such a marker. Here, we evaluate antibody reagents for the detection of citrulline residues in histones and observe alarming differences between commercial antisera and mouse and rabbit monoclonal antibodies in their ability to detect their nominal target residues...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27928420/histopathological-changes-of-inner-retina-optic-disc-and-optic-nerve-in-rabbit-with-advanced-retinitis-pigmentosa
#18
Ken Asakawa, Hitoshi Ishikawa, Shigekazu Uga, Kimiyo Mashimo, Mineo Kondo, Hiroko Terasaki
We observed the histopathological changes of retinal ganglion cells (RGCs), optic disc, and optic nerve in rabbit with advanced retinitis pigmentosa (RP). Wild-type (WT) and rhodopsin transgenic (Tg) of RP rabbits were used at age 24 months. Light and electron microscopy were used to observe the retina, optic disc, and optic nerve. RGCs were also confirmed by immunofluorescent staining with a TUJ-1 monoclonal antibody. In addition to the rod and cone degeneration, we observed the astrocyte infiltration of the optic disc due to the damage of small RGCs and nerve fibres and atrophy of small optic nerve fibres...
December 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27925405/animal-to-human-dose-translation-of-obiltoxaximab-for-treatment-of-inhalational-anthrax-under-the-us-fda-animal-rule
#19
C F Nagy, J Mondick, N Serbina, L S Casey, S E Carpenter, J French, R Guttendorf
Obiltoxaximab, a monoclonal antibody against protective antigen (PA), is approved for treatment of inhalational anthrax under the US Food and Drug Administration's (FDA) Animal Rule. The human dose was selected and justified by comparing observed obiltoxaximab exposures in healthy and infected New Zealand White rabbits and cynomolgus macaques to observed exposures in healthy humans, to simulated exposures in healthy and infected humans, and to serum PA levels in infected animals. In humans, at 16 mg/kg intravenous, obiltoxaximab AUC was >2 times that in animals, while maximum serum concentrations were comparable to those in animals and were maintained in excess of the concentration required for PA neutralization in infected animals for 2-3 weeks...
December 7, 2016: Clinical and Translational Science
https://www.readbyqxmd.com/read/27918764/effect-of-fluorouracil-leucovorin-and-oxaliplatin-with-or-without-onartuzumab-in-her2-negative-met-positive-gastroesophageal-adenocarcinoma-the-metgastric-randomized-clinical-trial
#20
Manish A Shah, Yung-Jue Bang, Florian Lordick, Maria Alsina, Meng Chen, Stephen P Hack, Jean Marie Bruey, Dustin Smith, Ian McCaffery, David S Shames, See Phan, David Cunningham
Importance: Dysregulation of the mesenchymal-epithelial transition (MET) signaling pathway is associated with poor prognosis in gastroesophageal adenocarcinoma (GEC). We report results of METGastric, a phase 3 trial of the MET inhibitor onartuzumab plus standard first-line chemotherapy for human epidermal growth factor receptor 2 (HER2)-negative, MET-positive, advanced GEC. Objective: To determine whether the addition of onartuzumab to first-line fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) improves efficacy compared with mFOLFOX6 plus placebo in HER2-negative, MET-positive GEC...
December 1, 2016: JAMA Oncology
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