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Immunity, Inflammation and Disease

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https://www.readbyqxmd.com/read/28722316/the-mincle-ligand-trehalose-dibehenate-differentially-modulates-m1-like-and-m2-like-macrophage-phenotype-and-function-via-syk-signaling
#1
Kristel Kodar, Jacquie L Harper, Melanie J McConnell, Mattie S M Timmer, Bridget L Stocker
INTRODUCTION: Macrophages play a significant role in the progression of diseases, such as cancer, making them a target for immune-modulating agents. Trehalose dibehenate (TDB) is known to activate M1-like macrophages via Mincle, however, the effect of TDB on M2-like macrophages, which are found in the tumor microenvironment, has not been studied. METHODS: qRT-PCR, flow cytometry, cytokine ELISA, and Western Blotting were used to study the effect of TDB on GM-CSF and M-CSF/IL-4 derived bone marrow macrophages (BMMs) from C57BL/6 and Mincle(-/-) mice...
July 19, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28695716/alterations-of-oncogenes-expression-in-nk-cells-in-patients-with-cancer
#2
Gulnur K Zakiryanova, Elena Kustova, Nataliya T Urazalieva, Aday Amirbekov, Emile T Baimuchametov, Narymzhan N Nakisbekov, Michael R Shurin
INTRODUCTION: C-kit/SCF signaling plays a key role in regulating NK cell homeostasis, maturation, proliferation, and cytotoxicity. C-kit-deficiency in NK cells results in significant reduction of their number, suggesting an imperative role for c-kit signaling in NK cell biology. We have recently showed that human NK cells express not only c-kit-receptor, but also both membrane-bound and soluble forms of c-kit ligand-Stem cell factor. The goal of this study was to characterize the c-kit/SCF autocrine loop in peripheral blood NK cells obtained from patients with cancer...
July 10, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28685994/gibberellin-regulated-protein-in-japanese-apricot-is-an-allergen-cross-reactive-to-pru-p-7
#3
Naoko Inomata, Mami Miyakawa, Michiko Aihara
BACKGROUND: Gibberellin-regulated protein (GRP, also known as peamaclein) was recently identified as a new marker allergen related to systemic reactions in peach allergy; however, its role in other fruit allergies is unknown. OBJECTIVE: To investigate the allergenicity of Japanese apricot (JA) GRP and clarify the clinical characteristics of JA allergy patients with GRP sensitization. METHODS: Seven patients (two males, five females, mean age 28...
July 6, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28685972/kir2ds5-allotypes-that-recognize-the-c2-epitope-of-hla-c-are-common-among-africans-and-absent-from-europeans
#4
Jeroen H Blokhuis, Hugo G Hilton, Lisbeth A Guethlein, Paul J Norman, Neda Nemat-Gorgani, Annettee Nakimuli, Olympe Chazara, Ashley Moffett, Peter Parham
INTRODUCTION: KIR2DS5 is an activating human NK cell receptor of lineage III KIR. These include both inhibitory KIR2DL1, 2 and 3 and activating KIR2DS1 that recognize either the C1 or C2 epitope of HLA-C. In Europeans KIR2DS5 is essentially monomorphic, with KIR2DS5*002 being predominant. Pioneering investigations showed that KIR2DS5*002 has activating potential, but cannot recognize HLA-A, -B, or -C. Subsequent studies have shown that KIR2DS5 is highly polymorphic in Africans, and that KIR2DS5*006 protects pregnant Ugandan women from preeclampsia...
July 6, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28681454/human-monocytes-downregulate-innate-response-receptors-following-exposure-to-the-microbial-metabolite-n-butyrate
#5
Felix Lasitschka, Thomas Giese, Marco Paparella, Stefan R Kurzhals, Guido Wabnitz, Katrin Jacob, Judith Gras, Konrad A Bode, Anne-Kristin Heninger, Timea Sziskzai, Yvonne Samstag, Cornelia Leszinski, Bettina Jocher, Mohammed Al-Saeedi, Stefan C Meuer, Jutta Schröder-Braunstein
INTRODUCTION: Hyporesponsiveness of human lamina propria immune cells to microbial and nutritional antigens represents one important feature of intestinal homeostasis. It is at least partially mediated by low expression of the innate response receptors CD11b, CD14, CD16 as well as the cystine-glutamate transporter xCT on these cells. Milieu-specific mechanisms leading to the down-regulation of these receptors on circulating monocytes, the precursor cells of resident macrophages, are mostly unknown...
July 6, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28660664/engaging-ly-6a-sca-1-triggers-lipid-raft-dependent-and-independent-responses-in-cd4-t-cell-lines
#6
Melissa A Lang, Sultan A Jenkins, Phillip Balzano, Adeyinka Owoyele, Akshay Patel, Anil K Bamezai
INTRODUCTION: The lymphocyte antigen 6 (Ly-6) supergene family encodes proteins of 12-14 kda in molecular mass that are either secreted or anchored to the plasma membrane through a glycosyl-phosphatidylinisotol (GPI) lipid anchor at the carboxy-terminus. The lipidated GPI-anchor allows localization of Ly-6 proteins to the 10-100 nm cholesterol-rich nano-domains on the membrane, also known as lipid rafts. Ly-6A/Sca-1, a member of Ly-6 gene family is known to transduce signals despite the absence of transmembrane and cytoplasmic domains...
June 28, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28621034/depletion-of-foxp3-tregs-improves-control-of-larval-echinococcus-multilocularis-infection-by-promoting-co-stimulation-and-th1-17-immunity
#7
Junhua Wang, Stephan Müller, Renyong Lin, Myriam Siffert, Dominique A Vuitton, Hao Wen, Bruno Gottstein
INTRODUCTION: The growth potential of the tumor-like Echinococcus multilocularis metacestode (causing alveolar echinococcosis, AE) is directly linked to the nature/function of the periparasitic host immune-mediated processes. Previous studies had shown that regulatory T cells (Tregs) become gradually up-regulated in the course of both chronic human and murine AE. Thus we now tackled the role of FoxP3(+) Tregs and FoxP3(+) -Treg-regulated immune response in contributing to the control of this helminthic infection...
June 16, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28597552/branched-chain-%C3%AE-ketoacid-dehydrogenase-kinase-111-130-a-t-cell-epitope-that-induces-both-autoimmune-myocarditis-and-hepatitis-in-a-j-mice
#8
Bharathi Krishnan, Chandirasegaran Massilamany, Rakesh H Basavalingappa, Arunakumar Gangaplara, Guobin Kang, Qingsheng Li, Francisco A Uzal, Jennifer L Strande, Gustavo A Delhon, Jean-Jack Riethoven, David Steffen, Jay Reddy
INTRODUCTION: Organ-specific autoimmune diseases are believed to result from immune responses generated against self-antigens specific to each organ. However, when such responses target antigens expressed promiscuously in multiple tissues, then the immune-mediated damage may be wide spread. METHODS: In this report, we describe a mitochondrial protein, branched chain α-ketoacid dehydrogenase kinase (BCKDk ) that can act as a target autoantigen in the development of autoimmune inflammatory reactions in both heart and liver...
June 9, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28580612/utility-of-basophil-activation-testing-to-assess-perioperative-anaphylactic-reactions-in-real-world-practice
#9
Bernadette Eberlein, Sibylle Wigand, Heidrun Lewald, Eberhard Kochs, Johannes Ring, Tilo Biedermann, Ulf Darsow
INTRODUCTION: Perioperative anaphylactic reactions due to drugs and substances associated with general anesthesia can potentially be life-threatening. The objective of this study was to investigate the significance of the basophil activation test (BAT) for allergy diagnosis work up. METHODS: A total of 14 patients (5 men, 9 women; mean age: 57.8 years) with clinical records of anaphylactic reactions under general anesthesia were studied by means of anesthesia records, skin and serological tests...
June 5, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28560793/tregitopes-and-impaired-antigen-presentation-drivers-of-the-immunomodulatory-effects-of-ivig
#10
Laetitia Sordé, Sebastian Spindeldreher, Ed Palmer, Anette Karle
INTRODUCTION: Although intravenous immunoglobulin (IVIg) is commonly used in the clinic to treat various autoimmune and severe inflammatory diseases, the mode of action is not fully elucidated. This work investigates two proposed mechanisms: (1) the potential role of regulatory T-cell epitopes (Tregitopes) from the constant domain of IgG in the immunosuppressive function of IVIg; and (2) a potential impact of IVIg on the ability of antigen presenting cells (APCs) to present peptides. METHODS AND RESULTS: Investigation of the HLA class II peptide repertoire from IVIg-loaded dendritic cells (DCs) via MHC-associated peptide proteomics (MAPPs) revealed that numerous IgG-derived peptides were strongly presented along the antibody sequence...
May 31, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28548248/the-emerging-role-of-interleukin-37-in-cardiovascular-diseases
#11
REVIEW
Xinyu Zhuang, Bangwei Wu, Jian Li, Haiming Shi, Bo Jin, Xinping Luo
INTRODUCTION: Interleukin (IL)-37 is a newly identified member of the IL-1 family, and shows a growing role in a variety of diseases. This review aims at summarizing and discussing the role of IL-37 in cardiovascular diseases. METHODS: Data for this review were identified by searches of MEDLINE, Embase, and PubMed using appropriate search terms. RESULTS: IL-37 is a newly identified cytokine belonging to the IL-1 family and is expressed in inflammatory immune cells and several parenchymal cells...
May 26, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28544689/class-ii-obese-and-healthy-pregnant-controls-exhibit-indistinguishable-pro-and-anti-inflammatory-immune-responses-to-caesarian-section
#12
Caroline Graham, Mullein Thorleifson, William P Stefura, Duane J Funk, Kent T HayGlass
INTRODUCTION: Obesity during pregnancy is associated with meta-inflammation and an increased likelihood of clinical complications. Surgery results in intense, acute inflammatory responses in any individual. Because obese individuals exhibit constitutive inflammatory responses and high rates of Caesarian section, it is important to understand the impact of surgery in such populations. Whether more pronounced pro-inflammatory cytokine responses and/or counterbalancing changes in anti-inflammatory immune modulators occurs is unknown...
May 25, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28544524/increase-of-cells-expressing-pd-1-and-pd-l1-and-enhancement-of-ifn-%C3%AE-production-via-pd-1-pd-l1-blockade-in-bovine-mycoplasmosis
#13
Shinya Goto, Satoru Konnai, Tomohiro Okagawa, Asami Nishimori, Naoya Maekawa, Satoshi Gondaira, Hidetoshi Higuchi, Masateru Koiwa, Motoshi Tajima, Junko Kohara, Satoshi Ogasawara, Yukinari Kato, Yasuhiko Suzuki, Shiro Murata, Kazuhiko Ohashi
INTRODUCTION: Bovine mycoplasma, chiefly Mycoplasma bovis, is a pathogen that causes pneumonia, mastitis, arthritis, and otitis media in cattle. This pathogen exerts immunosuppressive effects, such as the inhibition of interferon production. However, the mechanisms involved in bovine mycoplasmosis have not been fully elucidated. In this study, we investigated the role of the programmed death-1 (PD-1)/programmed death-ligand 1 (PD-L1) pathway in immunosuppression in bovine mycoplasmosis...
May 24, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28508570/a-new-transcript-in-the-tcrb-locus-unveils-the-human-ortholog-of-the-mouse-pre-d%C3%A3-1-promoter
#14
Bernard Lethé, Sylvia Snauwaert, Orian Bricard, David Schröder, Tiphanie Gomard, Gérald Hames, Catherine Muller, Christophe Lurquin, Emilie Gauthy, Ahmed Essaghir, Bart Vandekerckhove, Pierre G Coulie
INTRODUCTION: While most transcripts arising from the human T Cell Receptor locus reflect fully rearranged genes, several germline transcripts have been identified. We describe a new germline transcript arising from the human TCRB locus. METHODS: cDNA sequencing, promoter, and gene expression analyses were used to characterize the new transcript. RESULTS: The new germline transcript encoded by the human TCRB locus consists of a new exon of 103 bp, which we named TRBX1 (X1), spliced with the first exon of gene segments Cß1 or Cß2...
May 15, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28508554/intestinal-epithelial-suppressor-of-cytokine-signaling-3-socs3-impacts-on-mucosal-homeostasis-in-a-model-of-chronic-inflammation
#15
Elisabeth J Shaw, Emily E Smith, Jayde Whittingham-Dowd, Matthew D Hodges, Kathryn J Else, Rachael J Rigby
INTRODUCTION: Suppressor of cytokine signaling 3 (SOCS3) is a tumour suppressor, limiting intestinal epithelial cell (IEC) proliferation in acute inflammation, and tumour growth, but little is known regarding its role in mucosal homeostasis. Resistance to the intestinal helminth Trichuris muris relies on an "epithelial escalator" to expel the parasite. IEC turnover is restricted by parasite-induced indoleamine 2,3-dioxygenase (IDO). METHODS: Mice with or without conditional knockout of SOCS3 were infected with T...
May 15, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28508444/increased-adipose-tissue-expression-of-il-18r-and-its-ligand-il-18-associates-with-inflammation-and-insulin-resistance-in-obesity
#16
Rasheed Ahmad, Reeby Thomas, Shihab Kochumon, Sardar Sindhu
INTRODUCTION: The proinflammatory cytokine IL-18 is involved in the pathogenesis of metabolic syndrome. While the changes in IL-18 are known, IL-18R expression and relationship with IL-18 and other inflammatory markers in the adipose tissue in obesity/type-2 diabetes (T2D) remain unclear. METHODS: We, therefore, determined the adipose tissue expression of IL-18R and IL-18 mRNA/protein in lean, overweight, and obese individuals with and without T2D, 15 each, using qRT-PCR, immunohistochemistry, and confocal microscopy...
May 15, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28497614/broad-th2-neutralization-and-anti-inflammatory-action-of-pentosan-polysulfate-sodium-in-experimental-allergic-rhinitis
#17
Caroline Sanden, Michiko Mori, Prajakta Jogdand, Jimmie Jönsson, Ravi Krishnan, Xiangdong Wang, Jonas S Erjefält
BACKGROUND: Th2 cytokines like interleukin-4, -5, and -13 are regarded as important drivers of the immunopathology underlying allergic rhinitis (AR) and asthma. The present study explores the capacity of pentosan polysulfate sodium (PPS), a semi-synthetic heparin-like macromolecular carbohydrate, to bind Th2 cytokines and exert biological neutralization in vitro, as well as anti-inflammatory actions in vivo. METHODOLOGY: The capacity of PPS to bind recombinant Th2 cytokines was tested with surface plasmon resonance (SPR) technology and biological Th2 neutralization was assessed by Th2-dependent proliferation assays...
May 12, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28497578/effector-and-regulatory-dendritic-cells-display-distinct-patterns-of-mirna-expression
#18
Vincent Lombardi, Sonia Luce, Hélène Moussu, Lise Morizur, Claire Gueguen, Catherine Neukirch, Sylvie Chollet-Martin, Laurent Mascarell, Michel Aubier, Véronique Baron-Bodo, Philippe Moingeon
INTRODUCTION: MicroRNAs (miRNAs) contribute to the regulation of dendritic cell (DC) polarization, thereby influencing the balance of adaptive immune responses. Herein, we studied the expression of miRNAs in polarized DCs and analyzed whether expression of these miRNAs could be associated with allergic rhinitis and allergen immunotherapy (AIT) outcome. METHOD: Using specific culture conditions, we differentiated immature human monocyte-derived DCs into DC1, DC2, and DCreg subsets (supporting the differentiation of TH 1, TH 2 or regulatory T cells, respectively)...
May 12, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28497586/r-ras-deficiency-does-not-affect-papain-induced-ige-production-in-mice
#19
Laura Kummola, Zsuzsanna Ortutay, Maria Vähätupa, Stuart Prince, Hannele Uusitalo-Järvinen, Tero A H Järvinen, Ilkka S Junttila
INTRODUCTION: R-Ras GTPase has recently been implicated in the regulation of immune functions, particularly in dendritic cell (DC) maturation, immune synapse formation, and subsequent T cell responses. METHODS: Here, we investigated the role of R-Ras in allergen-induced immune response (type 2 immune response) in Rras deficient (R-Ras KO) and wild type (WT) mice. RESULTS: Initially, we found that the number of conventional DC's in the lymph nodes (LNs) was reduced in R-Ras KO mice...
May 11, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28493442/upa-derived-peptide-%C3%A3-6-is-involved-in-the-suppression-of-lipopolysaccaride-promoted-inflammatory-osteoclastogenesis-and-the-resultant-bone-loss
#20
Yosuke Kanno, Chihiro Maruyama, Ayaka Matsuda, Akira Ishisaki
INTRODUCTION: Chronic inflammatory diseases such as rheumatoid arthritis and periodontitis frequently cause bone destruction. Inflammation-induced bone loss results from the increase of bone-resorbing osteoclasts. Recently, we demonstrated that urokinase type plasminogen activator (uPA) suppressed lipopolysaccaride (LPS)-inflammatory osteoclastogenesis through the adenosine monophosphate-activated protein kinase (AMPK) pathway, whereas its receptor (uPAR) promoted that through the Akt pathway...
May 11, 2017: Immunity, Inflammation and Disease
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