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https://www.readbyqxmd.com/read/27920776/immunodetection-of-nets-in-paraffin-embedded-tissue
#1
Volker Brinkmann, Ulrike Abu Abed, Christian Goosmann, Arturo Zychlinsky
The pathogenic potential of neutrophil extracellular traps (NETs) was recently described, and their detection in tissue could serve as a prognostic marker. NETs are delicate and filigree structures; hence good tissue preservation is essential for their detection. Indeed, analysis of paraffin-embedded tissue has proven superior to the study of cryo sections. Though, under favorable conditions, the presence of NETs can be detected in tissue sections stained with histological dyes, definitive identification of NETs needs the colocalization of immunofluorescent signals for both nuclear and granular (or cytoplasmic) NET components...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27919759/identification-of-sea-bass-pigr-shows-its-interaction-with-vitellogenin-inducing-antibody-like-activities-in-hek-293t-cells
#2
Shuangshuang Yang, Shousheng Liu, Baozhen Qu, Yuan Dong, Shicui Zhang
Fish vitellogenin (Vg) has been shown to mediate the phagocytosis via interaction with a Fcγ-like phagocytic receptor on macrophages, but identification of such a receptor and its functional characterization remains lacking. In this study, we isolated a cDNA of polymeric immunoglobulin receptor (pIgR) from sea bass, which encoded a single-spanning transmembrane protein of 326 amino acids including a 21-amino acid signal peptide, an extracellular region, a transmembrane region and a 36-amino acid intracellular region included two Ig-like domains (ILDs), and was expressed in multiple lymphoid organs...
December 2, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27918555/gene-expression-profiling-of-anti-ctla4-treated-metastatic-melanoma-in-patients-with-treatment-induced-autoimmunity
#3
Scott C Bresler, Le Min, Scott J Rodig, Andrew C Walls, Shuyun Xu, Songmei Geng, F Stephen Hodi, George F Murphy, Christine G Lian
Ipilimumab (IPI) is a monoclonal antibody that targets the inhibitory CTLA4 receptor of T cells, enhancing T-cell-driven antitumor responses. IPI therapy in metastatic melanoma results in significant improvement in disease-free and overall survival, although after initial responses disease progression generally ensues. Identification of specific responses in tissue where melanoma tumor cells are subjected to IPI-driven immune attack may reveal mechanisms of treatment efficacy or resistance, permitting refinement of targeted therapeutic approaches...
December 5, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27916641/ucp1-the-mitochondrial-uncoupling-protein-of-brown-adipocyte-a-personal-contribution-and-a-historical-perspective
#4
REVIEW
Daniel Ricquier
The present text summarizes what was my contribution, starting in 1975, to the research on the uncoupling protein 1 (UCP1), the mitochondrial uncoupler of brown adipocytes. The research on UCP1 aimed at identifying the mechanisms of heat production by brown adipocytes that occurs in mammals either at birth or during cold exposure and arousal in hibernators. With others and in particular Dr. David Nicholls, I participated in the first experiments that contributed to the identification of UCP1. Important steps were the obtention of UCP1 antibodies followed with my main collaborator and friend Frédéric Bouillaud with the initial cloning of the UCP1 cDNA and gene from rats and humans...
December 1, 2016: Biochimie
https://www.readbyqxmd.com/read/27915977/a-review-on-recent-patents-and-applications-of-inorganic-material-binding-peptides
#5
Veeranjaneyulu Thota, Carole C Perry
Over the past decade, significant progress has been made in the identification of novel material binding peptides having affinity to a wide range of target materials and their use in nanobiotechnological innovations. These material binding peptides (MBPs), also known as solid/ substance binding peptides (SBPs) can be isolated using combinatorial display technologies such as phage display (PD), surface display (cell, bacterial, yeast, mRNA) exhibit material specific selectivity and affinity towards a range of inorganic and organic nanomaterial surfaces including metals, metal oxides, minerals, semiconductors and biomolecules...
December 1, 2016: Recent Patents on Nanotechnology
https://www.readbyqxmd.com/read/27913998/immunotherapy-for-breast-cancer-past-present-and-future
#6
Alison Spellman, Shou-Ching Tang
Immunotherapy has shown promise in many solid tumors including melanoma and non-small cell lung cancer with an evolving role in breast cancer. Immunotherapy encompasses a wide range of therapies including immune checkpoint inhibition, monoclonal antibodies, bispecific antibodies, vaccinations, antibody-drug conjugates, and identifying other emerging interventions targeting the tumor microenvironment. Increasing efficacy of these treatments in breast cancer patients requires identification of better biomarkers to guide patient selection; recognizing when to initiate these therapies in multi-modality treatment plans; establishing novel assays to monitor immune-mediated responses; and creating combined systemic therapy options incorporating conventional treatments such as chemotherapy and endocrine therapy...
December 2, 2016: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/27913516/immunoregulatory-networks-in-sickle-cell-alloimmunization
#7
Karina Yazdanbakhsh
Red blood cell (RBC) transfusions are critical for treatment and prevention of complications of sickle cell disease (SCD), and most SCD patients will receive 1 or more transfusions by age 20. However, SCD alloimmunization remains a serious complication of transfusions that can lead to life-threatening acute and delayed transfusion reactions. Alloimmunization rates are higher in SCD patients most likely due to RBC antigenic differences between largely white donors vs mainly African-American recipients and frequency of transfusions...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27909576/zika-antiviral-chemotherapy-identification-of-drugs-and-promising-starting-points-for-drug-discovery-from-an-fda-approved-library
#8
Bruno S Pascoalino, Gilles Courtemanche, Marli T Cordeiro, Laura H V G Gil, Lucio Freitas-Junior
Background The recent epidemics of Zika virus (ZIKV) implicated it as the cause of serious and potentially lethal congenital conditions such microcephaly and other central nervous system defects, as well as the development of the Guillain-Barré syndrome in otherwise healthy patients. Recent findings showed that anti-Dengue antibodies are capable of amplifying ZIKV infection by a mechanism similar to antibody-dependent enhancement, increasing the severity of the disease. This scenario becomes potentially catastrophic when the global burden of Dengue and the advent of the newly approved anti-Dengue vaccines in the near future are taken into account...
2016: F1000Research
https://www.readbyqxmd.com/read/27909085/a-negative-antinuclear-antibody-does-not-indicate-autoantibody-negativity-in-myositis-role-of-anticytoplasmic-antibody-as-a-screening-test-for-antisynthetase-syndrome
#9
Rohit Aggarwal, Namrata Dhillon, Noreen Fertig, Diane Koontz, Zengbiao Qi, Chester V Oddis
OBJECTIVE: To evaluate the utility of anticytoplasmic autoantibody (anti-CytAb) in antisynthetase antibody-positive (anti-SynAb+) patients. METHODS: Anti-SynAb+ patients were evaluated for antinuclear antibody (ANA) and anti-CytAb [cytoplasmic staining on indirect immunofluorescence (IIF)] positivity. Anti-SynAb+ patients included those possessing anti-Jo1 and other antisynthetase autoantibodies. Control groups included scleroderma, systemic lupus erythematosus, Sjögren syndrome, rheumatoid arthritis, and healthy subjects...
December 1, 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/27903274/breadth-and-magnitude-of-antigen-specific-antibody-responses-in-the-control-of-plasma-viremia-in-simian-immunodeficiency-virus-infected-macaques
#10
Bapi Pahar, Carys S Kenway-Lynch, Preston Marx, Sudesh K Srivastav, Celia LaBranche, David C Montefiori, Arpita Das
BACKGROUND: Increasing evidence suggests an unexpected potential for non-neutralizing antibodies to prevent HIV infection. Consequently, identification of functional linear B-cell epitopes for HIV are important for developing preventative and therapeutic strategies. We therefore explored the role of antigen-specific immune responses in controlling plasma viremia in SIV infected rhesus macaques. METHODS: Thirteen rhesus macaques were inoculated either intravaginally or intrarectally with SIVMAC251...
December 1, 2016: Virology Journal
https://www.readbyqxmd.com/read/27901506/squamous-cell-carcinoma-in-a-wild-european-bullhead-cottus-gobio
#11
F Quaglio, V Zappulli, L Poppi, P Capovilla, F Capparucci, F Marino
A pharyngeal tumor was found in a wild European bullhead. The tumor mass appeared underneath the operculum and was bilobed. The major neoplastic component showed diffuse epithelial squamous differentiation. Crossmonn's trichrome allowed identification of connective tissues whereas no neoplastic cells were stained. Periodic acid-Schiff was negative within the mass, and Giemsa did not show any further diagnostic significance. Immunohistochemistry showed diffuse positive cytoplasmic staining of the neoplastic population with an anti-human pancytokeratin antibody...
November 22, 2016: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/27901131/porous-silicon-based-biosensors-towards-real-time-optical-detection-of-target-bacteria-in-the-food-industry
#12
Naama Massad-Ivanir, Giorgi Shtenberg, Nitzan Raz, Christel Gazenbeek, Dries Budding, Martine P Bos, Ester Segal
Rapid detection of target bacteria is crucial to provide a safe food supply and to prevent foodborne diseases. Herein, we present an optical biosensor for identification and quantification of Escherichia coli (E. coli, used as a model indicator bacteria species) in complex food industry process water. The biosensor is based on a nanostructured, oxidized porous silicon (PSi) thin film which is functionalized with specific antibodies against E. coli. The biosensors were exposed to water samples collected directly from process lines of fresh-cut produce and their reflectivity spectra were collected in real time...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900962/association-of-conjunctival-and-corneal-calcification-with-vascular-calcification-among-hepatitis-c-seropositive-hemodialysis-patients
#13
Khaled AbouSeif, Dawlat Sany, Yasser Elshahawy, Ayman Seddik, Khedr Rahman, Moustapha Gaber
Disorders associated with the hepatitis C virus (HCV) have been reported including cardiovascular, metabolic, and central nervous system diseases. Since chronic HCV infections may be curable, their identification as causal contributors to cardiovascular risk could offer new perspectives in the prevention of cardiovascular disease. The aim of this study is to investigate the association between HCV and aortic arch calcification (AAC) and corneal and conjunctival calcification (CCC) in maintenance hemodialysis (MHD) patients; further, we assessed the correlation of CCC with vascular calcification...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27896772/characterization-of-a-protein-interactome-by-co-immunoprecipitation-and-shotgun-mass-spectrometry
#14
Giuseppina Maccarrone, Juan Jose Bonfiglio, Susana Silberstein, Christoph W Turck, Daniel Martins-de-Souza
Identifying the partners of a given protein (the interactome) may provide leads about the protein's function and the molecular mechanisms in which it is involved. One of the alternative strategies used to characterize protein interactomes consists of co-immunoprecipitation (co-IP) followed by shotgun mass spectrometry. This enables the isolation and identification of a protein target in its native state and its interactome from cells or tissue lysates under physiological conditions. In this chapter, we describe a co-IP protocol for interactome studies that uses an antibody against a protein of interest bound to protein A/G plus agarose beads to isolate a protein complex...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27896771/selective-reaction-monitoring-for-quantitation-of-cellular-proteins
#15
Vitor M Faça
Proteins and proteomes are dynamic and complex. The accurate identification and measurement of their properties such as abundance, location, and turnover are challenging tasks. Even though high-throughput proteomics has significantly evolved, the technique still lacks fully quantitative and reproducible qualities. A mass spectrometry-based targeted proteomic strategy called selective reaction monitoring (SRM) has emerged in recent years as an important multiplex platform to precisely quantify sets of proteins in multiple samples...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27895910/proteomic-identification-of-cryostress-in-epididymal-spermatozoa
#16
Sung Jae Yoon, Md Saidur Rahman, Woo Sung Kwon, Do Yeal Ryu, Yoo Jin Park, Myung Geol Pang
BACKGROUND: Cryopreservation of epididymal spermatozoa is important in cases in which it is not possible to collect semen using normal methods, as the sudden death of an animal or a catastrophic injury. However, the freezing and thawing processes cause stress to spermatozoa, including cold shock, osmotic damage, and ice crystal formation, thereby reducing sperm quality. We assessed the motility (%), motion kinematics, capacitation status, and viability of spermatozoa using computer-assisted sperm analysis and Hoechst 33258/chlortetracycline fluorescence staining...
2016: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/27895532/cd163-macrophage-and-erythrocyte-contents-in-aspirated-deep-vein-thrombus-are-associated-with-the-time-after-onset-a-pilot-study
#17
Eiji Furukoji, Toshihiro Gi, Atsushi Yamashita, Sayaka Moriguchi-Goto, Mio Kojima, Chihiro Sugita, Tatefumi Sakae, Yuichiro Sato, Toshinori Hirai, Yujiro Asada
BACKGROUND: Thrombolytic therapy is effective in selected patients with deep vein thrombosis (DVT). Therefore, identification of a marker that reflects the age of thrombus is of particular concern. This pilot study aimed to identify a marker that reflects the time after onset in human aspirated DVT. METHODS: We histologically and immunohistochemically analyzed 16 aspirated thrombi. The times from onset to aspiration ranged from 5 to 60 days (median of 13 days)...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27894367/potential-immunological-markers-for-diagnosis-of-human-strongyloidiasis-using-heterologous-antigens
#18
M A Corral, F M Paula, D M C L Meisel, V L P Castilho, E M N Gonçalves, D Levy, S P Bydlowski, P P Chieffi, W Castro-Borges, R C B Gryschek
Strongyloides venezuelensis is a parasitic nematode of rodents that is frequently used to obtain heterologous antigens for immunological diagnosis of human strongyloidiasis. The aim of this study was to identify antigens from filariform larvae of S. venezuelensis for immunodiagnosis of human strongyloidiasis. Soluble and membrane fractions from filariform larvae of S. venezuelensis were obtained in phosphate saline (SS and SM) and in Tris-HCl buffer (TS and TM), and were analysed by Western blotting. Different antigenic components were recognized by IgG antibodies from the sera of strongyloidiasis patients...
November 29, 2016: Parasitology
https://www.readbyqxmd.com/read/27894129/isolated-fetal-ascites-neonatal-outcome-in-51-cases-observed-in-a-tertiary-referral-center
#19
Vincenzo Davide Catania, Alessia Muru, Marcella Pellegrino, Erika Adalgisa De Marco, Filomena Valentina Paradiso, Carlo Manzoni, Lorenzo Nanni, Lucia Masini
Introduction Prenatal detection of isolated ascites is a rare finding on ultrasound, usually suggestive of an underlying pathology that may negatively impact on the pregnancy and neonatal outcome. The purpose of the present study was to evaluate the outcome of primary isolated ascites in relation to gestational age (GA) at diagnosis. Materials and Methods Data were prospectively collected for fetuses with ascites that have been followed in our center of prenatal diagnosis and therapy from 2004 to 2014. Patients have been divided in group I when ascites was detected before the 24th week of GA and group II if it was noticed later...
November 28, 2016: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27893746/mast-cells-are-abundant-in-primary-cutaneous-t-cell-lymphomas-results-from-a-computer-aided-quantitative-immunohistological-study
#20
Johanna Eder, Radu Rogojanu, Waltraud Jerney, Friedrich Erhart, Alexander Dohnal, Melitta Kitzwögerer, Georg Steiner, Julia Moser, Franz Trautinger
BACKGROUND: Mast cells (MC) are bone marrow derived haematopoetic cells playing a crucial role not only in immune response but also in the tumor microenvironment with protumorigenic and antitumorigenic functions. The role of MC in primary cutaneous T-cell lymphomas (CTCL), a heterogeneous group of non-Hodgkin lymphomas with initial presentation in the skin, is largely unknown. OBJECTIVE: To gain more accurate information about presence, number, distribution and state of activation (degranulated vs...
2016: PloS One
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