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https://www.readbyqxmd.com/read/28110425/functional-effector-memory-t-cells-contribute-to-protection-from-superinfection-with-heterologous-simian-immunodeficiency-virus-or-simian-human-immunodeficiency-virus-isolates-in-chinese-rhesus-macaques
#1
Ming Sun, Huiwen Zheng, Yingpeng Xie, Bingxiang Li, Haiting Long, Ge Guo, Lei Guo, Jingjing Wang, Ruotong Ning, Yue Li, Longding Liu
Many studies have revealed a protective effect of infection of an individual with an immunodeficiency virus against subsequent infection with a heterologous strain. However, the extent of protection against superinfection conferred by the first infection and the biological consequences of superinfection are not well understood. Here, we report that a rhesus monkey model of mucosal superinfection was established to investigate the protective immune response. Protection against superinfection was shown to correlate with the extent of the polyfunctionality of CD4(+) effector memory T cells, whereas neutralizing antibody responses did not protect against superinfection in this model...
January 21, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28110389/a-novel-lectin-from-artocarpus-lingnanensis-induces-proliferation-and-th1-th2-cytokine-secretion-through-cd45-signaling-pathway-in-human-t-lymphocytes
#2
Bo Cui, Lu Li, Qiyan Zeng, Faquan Lin, Lijun Yin, Liejun Liao, Min Huang, Jingping Wang
Lectins are carbohydrate-binding proteins and have been used for purification and characterization of glycoproteins. In this study, a novel 58.9-kDa tetrameric lectin from Artocarpus lingnanensis seeds was purified, characterized, and its mitogenic potential was evaluated. The hemagglutination inhibition assay indicated that Artocarpus lingnanensis lectin (ALL) showed specificity toward galactose. ALL was effectively purified in a single-step using affinity chromatography on a galactose-Sepharose column. ALL showed pH optima between 5...
January 21, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28110216/positron-emission-tomography-computed-tomography-and-4-hydroxynonenal-histidine-immunohistochemistry-reveal-differential-onset-of-lipid-peroxidation-in-primary-lung-cancer-and-in-pulmonary-metastasis-of-remote-malignancies
#3
Nevenka Piskač Živković, Mladen Petrovečki, Čedna Tomasović Lončarić, Igor Nikolić, Georg Waeg, Morana Jaganjac, Kamelija Žarković, Neven Žarković
: The Aim of the study was to reveal if PET-CT analysis of primary and of secondary lung cancer could be related to the onset of lipid peroxidation in cancer and in surrounding non-malignant lung tissue. METHODS: Nineteen patients with primary lung cancer and seventeen patients with pulmonary metastasis were involved in the study. Their lungs were analyzed by PET-CT scanning before radical surgical removal of the cancer. Specific immunohistochemistry for the major bioactive marker of lipid peroxidation, 4-hydroxynonenal (HNE), was done for the malignant and surrounding non-malignant lung tissue using genuine monoclonal antibody specific for the HNE-histidine adducts...
January 11, 2017: Redox Biology
https://www.readbyqxmd.com/read/28110104/quercetin-3-o-glucuronide-promotes-the-proliferation-and-migration-of-neural-stem-cells
#4
Samrat Baral, Ramesh Pariyar, Jaehyo Kim, Ho-Sub Lee, Jungwon Seo
Quercetin is a bioactive compound exerting therapeutic effects on in vivo animal models of neurodegeneration or neurotoxicity. However, the narrow therapeutic dose-range of quercetin has been a point of concern since previous studies have demonstrated that quercetin induces cytotoxicity in vitro. Quercetin is metabolized to quercetin glucuronates such as quercetin-3-O-glucuronide (Q3GA), primarily detected in the plasma and the brain. Here, we examined whether and how quercetin or Q3GA regulates neural stem cells (NSCs) in vivo and in vitro...
January 3, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28109886/truncated-prion-protein-prp226-a-structural-view-on-its-role-in-amyloid-disease
#5
Valerija Kovač, Blaž Zupančič, Gregor Ilc, Janez Plavec, Vladka Čurin Šerbec
In the brain of patients with transmissible spongiform encephalopathies, besides PrP(Sc) aggregates, deposition of truncated PrP molecules was described. Jansen et al. reported two clinical cases with deposition of C-terminally truncated PrP, one of them ending with Tyr226. We have previously described the discovery of monoclonal antibody V5B2 that selectively recognizes this version of the prion protein, which we called PrP226*. Using monoclonal antibody V5B2 we showed that accumulation of PrP226* is characteristic for most types of human and animal TSEs...
January 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28109867/interactions-between-interleukin-6-and-myeloid-derived-suppressor-cells-drive-the-chemoresistant-phenotype-of-hepatocellular-cancer
#6
Min Xu, Zhongwei Zhao, Jingjing Song, Xilin Lan, Siming Lu, Minjiang Chen, Zufei Wang, Weiqian Chen, Xiaoxi Fan, Fazong Wu, Li Chen, Jianfei Tu, Jiansong Ji
Emerging evidence implicates an important role for myeloid-derived suppressor cells (MDSCs) in tumor growth, angiogenesis and metastasis. However, limited knowledge is known about the function of MDSCs in response to chemotherapies. In this study, we find that drug-resistant hepatocellular cancer (HCC) cells-derived conditioned medium significantly enhances the expansion and immunosuppressive function of MDSCs compared to their parental sensitive cells, which is demonstrated by increased level of arginase, nitric oxide (NO), and reactive oxygen species (ROS)...
January 18, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28109707/potential-risk-of-repeated-nasal-vaccination-that-induces-allergic-reaction-with-mucosal-ige-and-airway-eosinophilic-infiltration-in-cynomolgus-macaques-infected-with-h5n1-highly-pathogenic-avian-influenza-virus
#7
Misako Nakayama, Yasushi Itoh, Shintaro Shichinohe, Rumi Nakabayashi, Hirohito Ishigaki, Yoshihiro Sakoda, Quynh Mai Le, Yoshihiro Kawaoka, Hiroshi Kida, Kazumasa Ogasawara
The efficacy and detrimental effect of mucosal vaccination with an inactivated influenza vaccine were examined in a macaque model by intranasal administration with small amounts of inactivated whole virus particles and challenge by a human-derived H5N1 highly pathogenic avian influenza virus infection. Repeated nasal inoculation with the whole particle vaccine of an inactivated virus, A/duck/Hokkaido/Vac-3/2007 (H5N1) (Vac-3), induced antigen-specific IgA and IgG antibody production in nasal swabs and plasma...
January 18, 2017: Vaccine
https://www.readbyqxmd.com/read/28109445/identification-of-novel-macropinocytosing-human-antibodies-by-phage-display-and-high-content-analysis
#8
K D Ha, S M Bidlingmaier, Y Su, N-K Lee, B Liu
Internalizing antibodies have great potential for the development of targeted therapeutics. Antibodies that internalize via the macropinocytosis pathway are particularly promising since macropinocytosis is capable of mediating rapid, bulk uptake and is selectively upregulated in many cancers. We hereby describe a method for identifying antibodies that internalize via macropinocytosis by screening phage-displayed single-chain antibody selection outputs with an automated fluorescent microscopy-based high-content analysis platform...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28109201/genetic-analyses-of-the-fusion-protein-genes-in-human-parainfluenza-virus-types-1-and-3-among-patients-with-acute-respiratory-infections-in-eastern-japan-from-2011-to-2015
#9
Rika Tsutsui, Hiroyuki Tsukagoshi, Koo Nagasawa, Masaki Takahashi, Yuki Matsushima, Akihide Ryo, Makoto Kuroda, Hideki Takami, Hirokazu Kimura
PURPOSE: To genetically explorer the fusion protein gene (F) in human parainfluenza virus type 1 (HPIV1) and type 3 (HPIV3) strains, we analyzed them in the patients with acute respiratory infections (ARI) in Eastern Japan from 2011 to 2015. METHODOLOGY: We constructed phylogenetic trees based on the HPIV and HPIV3 F gene using the maximum likelihood method and conducted p-distance, and selective pressure analyses. We also predicted the linear epitopes of the protein in the prototype strains...
January 20, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28109156/-cloning-and-sequence-analysis-of-variable-region-genes-of-mouse-anti-human-s100a9-monoclonal-antibody
#10
Min Yan, Danyang Mi, Xiangdong Sun, Zhenqiang Zhang, Huahui Zeng, Wendi Liu
Objective To clone and analyze variable region gene sequences of mouse monoclonal antibody against human S100A9 (anti-human S100A9 mAb). Methods Total RNA was extracted from the hybridoma cell line (IID4B10) secreting mouse anti-human S100A9 mAb. Furthermore, the heavy chain variable region (VH) and light chain variable region (VL) genes were amplified using reverse transcription-polymerase chain reaction (RT-PCR). After the cloning and sequencing of the VH and VL genes, the sequence analyses were performed by BLAST program...
February 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28109128/population-pharmacokinetics-and-pharmacodynamics-of-benralizumab-in-healthy-volunteers-and-patients-with-asthma
#11
B Wang, L Yan, Z Yao, L K Roskos
Benralizumab is a humanized, afucosylated, anti-interleukin-5 receptor α, immunoglobulin G (IgG) 1 κ monoclonal antibody. We developed a population pharmacokinetic (PK)/pharmacodynamic (PD) model for benralizumab by analyzing PK and blood eosinophil count data from two healthy volunteer studies (N = 48) and four studies in patients with asthma (N = 152). Benralizumab PK was dose-proportional and adequately described by a two-compartment model with first-order elimination from the central compartment and first-order absorption from the subcutaneous dosing site...
January 21, 2017: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/28109031/undifferentiated-embryonic-cell-transcription-factor-1-utf1-and-deleted-in-azoospermia-like-dazl-expression-in-the-testes-of-donkeys
#12
Y S Lee, H J Jung, M J Yoon
Putative markers for each specific germ cell stage can be a useful tool to study the fate and functions of these cells. Undifferentiated embryonic cell transcription factor 1 (UTF1) is a putative marker for undifferentiated spermatogonia in humans, rats and horses. The deleted in azoospermia-like (DAZL) protein is also expressed by differentiated spermatogonia and primary spermatocytes in several species. However, whether the expression patterns of these molecular markers are identical and applicable to donkeys remains to be elucidated...
January 20, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28108653/galectin-1-expression-is-associated-with-tumour-immunity-and-prognosis-in-gingival-squamous-cell-carcinoma
#13
Yuri Noda, Mitsunobu Kishino, Sunao Sato, Katsutoshi Hirose, Manabu Sakai, Yasuo Fukuda, Shumei Murakami, Satoru Toyosawa
AIMS: Galectin-1 (Gal-1) is a β-galactoside-binding protein that overexpresses in cancer and plays pivotal roles in tumour progression. Gal-1 regulates angiogenesis and invasiveness, and suppresses tumour immunity by inducing T cell apoptosis. Several studies have examined the relationship between Gal-1 and tumour immunosuppression in vivo, but they have not examined the clinicopathological relationship between Gal-1 expression and apoptotic T cell number in human tissue. In this study, we investigated the association between Gal-1 expression and apoptotic T cells of gingival squamous cell carcinoma (GSCC), as well as other clinicopathological factors...
February 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28108631/the-complexity-of-lipoprotein-a-lowering-by-pcsk9-monoclonal-antibodies
#14
REVIEW
Gilles Lambert, Aurélie Thedrez, Mikaël Croyal, Stéphane Ramin-Mangata, David Couret, Nicolas Diotel, Estelle Nobécourt-Dupuy, Michel Krempf, Jean Christophe LeBail, Bruno Poirier, Jorg Blankenstein, Elise F Villard, Etienne Guillot
Since 2012, clinical trials dedicated to proprotein convertase subtilisin kexin type 9 (PCSK9) inhibition with monoclonal antibodies (mAbs) have unambiguously demonstrated robust reductions not only in low-density lipoprotein (LDL) cholesterol (LDL-C) but also in lipoprotein (a) [Lp(a)] levels. The scientific literature published prior to those studies did not provide any evidence for a link between PCSK9 and Lp(a) metabolism. More recent investigations, either in vitro or in vivo, have attempted to unravel the mechanism(s) by which PCSK9 mAbs reduce circulating Lp(a) levels, with some showing a specific implication of the LDL receptor (LDLR) in Lp(a) clearance whereas others found no significant role for the LDLR in that process...
February 1, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28108610/circulating-cxcr5-pd-1-icos-follicular-t-helper-cells-are-increased-close-to-the-diagnosis-of-type-1-diabetes-in-children-with-multiple-autoantibodies
#15
Tyyne Viisanen, Emmi-Leena Ihantola, Kirsti Näntö-Salonen, Heikki Hyöty, Noora Nurminen, Jenni Selvenius, Auni Juutilainen, Leena Moilanen, Jussi Pihlajamäki, Riitta Veijola, Jorma Toppari, Mikael Knip, Jorma Ilonen, Tuure Kinnunen
Although type 1 diabetes (T1D) is primarily perceived as a T cell-driven autoimmune disease, islet autoantibodies are the best currently available biomarker for autoimmunity and disease risk. These antibodies are produced by autoreactive B cells, the activation of which is largely dependent on the function of CD4(+)CXCR5(+) follicular T helper cells (Tfh). In this study, we have comprehensively characterized the Tfh- as well as B-cell compartments in a large cohort of children with newly diagnosed T1D or at different stages of preclinical T1D...
February 2017: Diabetes
https://www.readbyqxmd.com/read/28108544/the-interplay-between-neutrophils-and-cd8-t-cells-improves-survival-in-human-colorectal-cancer
#16
Valeria Governa, Emanuele Trella, Valentina Mele, Luigi Tornillo, Francesca Amicarella, Eleonora Cremonesi, Maunele Giuseppe Muraro, Hui Xu, Raoul Droeser, Silvio Raffael Däster, Martin Bolli, Raffaele Rosso, Daniel Oertli, Serenella Eppenberger-Castori, Luigi Terracciano, Giandomenica Iezzi, Giulio C Spagnoli
PURPOSE: Tumor infiltration by different T lymphocyte subsets is known to be associated with favorable prognosis in colorectal cancer (CRC). Still debated is the role of innate immune system. We investigated clinical relevance, phenotypes and functional features of CRC infiltrating CD66b+ neutrophils and their crosstalk with CD8+ T cells. EXPERIMENTAL DESIGN: CD66b+ and CD8+ cell infiltration was analyzed by immunohistochemistry on a tissue microarray including >650 evaluable CRC samples...
January 20, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28108510/bone-metastasis-of-prostate-cancer-can-be-therapeutically-targeted-at-the-tbx2-wnt-signaling-axis
#17
Srinivas Nandana, Manisha Tripathi, Peng Duan, Chia-Yi Chu, Rajeev Mishra, Chunyan Liu, Renjie Jin, Hironobu Yamashita, Majd Zayzafoon, Neil A Bhowmick, Haiyen E Zhau, Robert J Matusik, Leland W K Chung
Identification of factors that mediate visceral and bone metastatic spread and subsequent bone remodeling events is highly relevant to successful therapeutic intervention in advanced human prostate cancer (PCa). TBX2, a T-box family transcription factor that negatively regulates cell cycle inhibitor p21, plays critical roles during embryonic development, and recent studies have highlighted its role in cancer. Here we report that TBX2 is overexpressed in human PCa specimens and bone metastases from xenograft mouse models of human PCa...
January 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28108404/annulus-fibrosus-cells-express-and-utilize-c-c-chemokine-receptor-5-ccr5-for-migration
#18
Weijun Liu, David Liu, Justin Zheng, Peng Shi, Po-Hsin Chou, Chundo Oh, Di Chen, Howard S An, Ana Chee
BACKGROUND CONTEXT: Disc degeneration is associated with the progressive loss of the proteoglycan content of the intervertebral disc (IVD), decreased matrix synthesis, higher concentrations of proteolytic enzymes and increased levels of pro-inflammatory cytokines. In previous studies, we have shown that C-C chemokine ligand (CCL)2, CCL3, and CCL5 are highly expressed by cultured nucleus pulposus (NP) and annulus fibrosus (AF) cells that have been treated by interleukin (IL)-1. The major function for these chemokines is to recruit immune cells into the disc...
January 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28108183/evaluation-of-multiplex-assay-platforms-for-detection-of-influenza-hemagglutinin-subtype-specific-antibody-responses-influenza-ha-subtype-specific-antibody-detection-platform
#19
Zhu-Nan Li, Kimberly M Weber, Rebecca A Limmer, Bobbi J Horne, James Stevens, Joy Schwerzmann, Jens Wrammert, Megan McCausland, Andrew J Phipps, Kathy Hancock, Daniel B Jernigan, Min Levine, Jacqueline M Katz, Joseph D Miller
Influenza hemagglutination inhibition (HI) and virus microneutralization assays (MN) are widely used for seroprevalence studies. However, these assays have limited field portability and are difficult to fully automate for high throughput laboratory testing. To address these issues, three multiplex influenza subtype-specific antibody detection assays were developed using recombinant hemagglutinin antigens in combination with Chembio, Luminex(®), and ForteBio(®) platforms. Assay sensitivity, specificity, and subtype cross-reactivity were evaluated using a panel of well characterized human sera...
January 17, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28107959/use-of-quantum-dot-beads-labeled-monoclonal-antibody-to-improve-the-sensitivity-of-a-quantitative-and-simultaneous-immunochromatographic-assay-for-neuron-specific-enolase-and-carcinoembryonic-antigen
#20
Kun Xiao, Kan Wang, Weijian Qin, Yafei Hou, Wenting Lu, Hao Xu, Yan Wo, Daxiang Cui
Detection of multiplex tumor markers was of great importance for cancer diagnosis. Immunochromatographic test strip (ICTS) was the most frequently-used point-of-care detection means. Herein, a convenient and fast method for simultaneous quantitative detection of neuron specific enolase (NSE) and carcinoembryonic antigen (CEA) was developed based on ICTS using quantum dot beads (QBs) as marking material. Good monodispersity, high colloidal stability and carboxyl-modified (COOH-) QBs were used. For this method, two test lines were applied to the NC membrane for simultaneous analysis of CEA and NSE respectively...
March 1, 2017: Talanta
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