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https://www.readbyqxmd.com/read/28634479/whole-blood-profiling-of-bacillus-calmette-gu%C3%A3-rin-induced-trained-innate-immunity-in-infants-identifies-epidermal-growth-factor-il-6-platelet-derived-growth-factor-ab-bb-and-natural-killer-cell-activation
#1
Steven G Smith, Johanneke Kleinnijenhuis, Mihai G Netea, Hazel M Dockrell
Vaccination of infants with bacillus Calmette-Guérin (BCG) activates both the innate and adaptive arms of the immune response. The antimycobacterial effects of these responses most likely account for the ability of BCG to protect against childhood forms of tuberculosis (TB). There is also evidence for a heterologous protective effect of BCG vaccination against TB-unrelated mortality in low birth weight infants. A possible mechanism of action of this effect, the induction of trained innate immunity, has been demonstrated when cells from BCG-vaccinated adults are restimulated in vitro with non-related microbial stimuli...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28633645/generation-of-populations-of-antigen-specific-cytotoxic-t-cells-using-dcs-transfected-with-dna-construct-encoding-her2-neu-tumor-antigen-epitopes
#2
Maria Kuznetsova, Julia Lopatnikova, Julia Khantakova, Rinat Maksyutov, Amir Maksyutov, Sergey Sennikov
BACKGROUND: Recent fundamental and clinical studies have confirmed the effectiveness of utilizing the potential of the immune system to remove tumor cells disseminated in a patient's body. Cytotoxic T lymphocytes (CTLs) are considered the main effectors in cell-mediated antitumor immunity. Approaches based on antigen presentation to CTLs by dendritic cells (DCs) are currently being intensively studied, because DCs are more efficient in tumor antigen presentation to T cells through their initiation of strong specific antitumor immune responses than other types of antigen-presenting cells...
June 20, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28631887/thymic-stromal-lymphopoietin-is-expressed-in-human-corneal-stromal-cells-and-secreted-upon-protease-activated-receptor-1-activation
#3
Hongbo Yin, Yan Tian, Rongying Luo, Yingping Deng
Thymic stromal lymphopoietin (TSLP) is an interleukin-7 (IL-7) like cytokine that triggers inflammatory responses through activating dendritic cell. It is demonstrated to be involved in a number of disorders, including cancer, gastrointestinal diseases, and autoimmune diseases. In addition, TSLP is also found to be able to induce itch sensation by directly activating the itch sensory neurons. The expression of human TSLP is detected in various tissues such as heart, liver, testis, and prostate. In this study, we report that TSLP was expressed in the human corneal stromal cells, the highly specialized cells that are critical for the function of the cornea...
June 20, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28627525/inflammatory-anti-inflammatory-and-regulatory-cytokines-in-relatively-healthy-lung-tissue-as-an-essential-part-of-the-local-immune-system
#4
Zane Vitenberga, Mara Pilmane
BACKGROUND: The innate and adaptive immune systems in lungs are maintained not only by immune cells but also by non-immune tissue structures, locally providing wide intercellular communication networks and regulating the local tissue immune response. AIMS: The aim of this study was to determine the appearance and distribution of inflammatory, anti-inflammatory and regulatory cytokines in relatively healthy lung tissue samples. MATERIAL AND METHODS: We evaluated lung tissue specimens obtained from 49 patients aged 9-95 years in relatively healthy study subjects...
June 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28625271/-advances-in-immunotherapeutic-research-of-sepsis
#5
Lihua Dong, Juan Lyu, Lili Ding, Zhongmin Liu
Sepsis is a life-threatening organ dysfunction caused by dysregulated host responses to infection. Despite decades of research, it remains the leading cause of death in intensive care units (ICUs). None of the current treatment, including antibiotics, organ protection and liquid resuscitation, is specifically effective for sepsis. Immunosuppression is one of the currently accepted pathogenesis and immunotherapy is one of the hot spot of current sepsis research. Immune related treatments include restricting the release of pathogen toxin and its removal, controlling the excessive inflammatory reaction and apoptosis inhibition, etc...
February 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28622456/elevated-ccl25-and-ccr9-expressing-t-helper-cells-in-salivary-glands-of-primary-sj%C3%A3-gren-s-syndrome-patients-potential-new-axis-in-lymphoid-neogenesis
#6
Sofie L M Blokland, Maarten R Hillen, Aike A Kruize, Stephan Meller, Bernhard Homey, Glennda M Smithson, Timothy R D J Radstake, Joel A G van Roon
Introduction T follicular helper (Tfh)-cells play a critical role in germinal center formation and B-cell activation, both hallmarks of primary Sjögren's syndrome (pSS). CCR9-expressing Th-cells have "Tfh-like" characteristics and are increased at mucosa-associated sites in several inflammatory conditions. Because of their unique characteristics and limited evaluation we investigated the local and systemic CCL25/CCR9-axis in pSS. Methods CCL25 protein and mRNA levels and CCR9+ Th-cells were assessed in labial salivary glands (LSG) of pSS and non-Sjögren's sicca (nSS) patients and their correlation with inflammatory and clinical parameters was evaluated...
June 16, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28622063/characteristic-profiles-of-inflammatory-cytokines-in-the-aqueous-humor-of-glaucomatous-eyes
#7
Taiki Kokubun, Satoru Tsuda, Hiroshi Kunikata, Masayuki Yasuda, Noriko Himori, Shiho Kunimatsu-Sanuki, Kazuichi Maruyama, Toru Nakazawa
PURPOSE: To analyze cytokine profiles of the aqueous humor of eyes with primary open-angle glaucoma (POAG), neovascular glaucoma (NVG), and cataract (as controls). METHODS: A multiplex bead assay was used to measure concentrations of 27 cytokines in aqueous humor samples from 54 eyes. RESULTS: Detection rates were as follows: IL-7: NVG higher than POAG; IL-10: POAG lower than cataract or NVG; and GM-CSF: cataract higher than POAG or NVG. Concentrations were as follows: IL-8, IP-10, MCP-1, and MIP-1β: POAG and NVG higher than cataract; IL-9: POAG lower than NVG; IL-12: POAG lower than cataract or NVG; and VEGF: NVG higher than cataract or POAG and POAG lower than cataract...
June 16, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28620098/cytokine-signaling-in-the-development-and-homeostasis-of-regulatory-t-cells
#8
Kevin H Toomer, Thomas R Malek
Cytokine signaling is indispensable for regulatory T-cell (Treg) development in the thymus, and also influences the homeostasis, phenotypic diversity, and function of Tregs in the periphery. Because Tregs are required for establishment and maintenance of immunological self-tolerance, investigating the role of cytokines in Treg biology carries therapeutic potential in the context of autoimmune disease. This review discusses the potent and diverse influences of interleukin (IL)-2 signaling on the Treg compartment, an area of knowledge that has led to the use of low-dose IL-2 as a therapy to reregulate autoaggressive immune responses...
June 15, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28612257/peripheral-alterations-in-cytokine-and-chemokine-levels-after-antidepressant-drug-treatment-for-major-depressive-disorder-systematic-review-and-meta-analysis
#9
REVIEW
Cristiano A Köhler, Thiago H Freitas, Brendon Stubbs, Michael Maes, Marco Solmi, Nicola Veronese, Nayanna Q de Andrade, Gerwyn Morris, Brisa S Fernandes, André R Brunoni, Nathan Herrmann, Charles L Raison, Brian J Miller, Krista L Lanctôt, André F Carvalho
Mounting evidence suggests that aberrations in immune-inflammatory pathways contribute to the pathophysiology of major depressive disorder (MDD), and individuals with MDD may have elevated levels of predominantly pro-inflammatory cytokines and C-reactive protein. In addition, previous meta-analyses suggest that antidepressant drug treatment may decrease peripheral levels of interleukin-1 beta (IL-1β) and IL-6. Recently, several new studies examining the effect of antidepressants on these cytokines have been published, and so we performed an updated meta-analysis of studies that measured peripheral levels of cytokines and chemokines during antidepressant treatment in patients with MDD...
June 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28603864/ediii-denv3-nanospheres-drive-immature-dendritic-cells-into-a-mature-phenotype-in-an-in-vitro-model
#10
Nattika Nantachit, Panya Sunintaboon, Sukathida Ubol
Domain III of E protein of DENV is one of the targets for vaccine development. Unfortunately, this protein-based platform has generally low immunogenicity. To circumvent this problem, we investigated the use of an adjuvant-nanoparticle delivery system to facilitate immunogenicity of soluble DENV-EDIII protein. One of the key features of this delivery system is its ability to simultaneously deliver antigens and exert adjuvanticity to specialized immune cells. In this study, we generated N-trimethyl chitosan (TMC) nanoparticles (NPs) to be used as adjuvant and carrier for the soluble E-domain III of dengue virus serotype 3 (sEDIII-D3)...
June 12, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28600230/cytokine-and-chemokine-profile-changes-in-patients-with-lower-segment-lumbar-degenerative-spondylolisthesis
#11
Juraj Sutovsky, Martin Benco, Martina Sutovska, Michaela Kocmalova, Lenka Pappova, Juraj Miklusica, Andrej Frano, Egon Kurca
BACKGROUND: Lumbar degenerative spondylolisthesis (DS) develops as a result of inflammatory and remodeling processes in facet joints (FJs). Several inflammatory cytokines are involved in the osteoarthritic and remodeling changes that occur and in low-back and/or radicular pain, the most prevalent clinical symptom of disease. This study improves knowledge related to the roles that 27 cytokines, chemokines and growth factors play in the pathophysiology of lumbar DS. MATERIAL AND METHODS: Cytokine levels were examined using capture sandwich immunoassay using the Bio-Plex(®) 200 System and the Bio-PlexTM Human Cytokine Standard 27-Plex, Group I (Bio-Rad, Hercules, California, USA) separately in intervertebral discs (IVDs) and FJ bone tissue...
June 6, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28597951/treg-conditioning-endows-activated-teff-with-suppressor-function-in-autoimmune-hepatitis-autoimmune-sclerosing-cholangitis
#12
Rodrigo Liberal, Charlotte R Grant, Muhammed Yuksel, Jonathon Graham, Alireza Kalbasi, Yun Ma, Michael A Heneghan, Giorgina Mieli-Vergani, Diego Vergani, Maria Serena Longhi
Imbalance between T regulatory (Treg) and T effector (Teff) cells is likely to contribute to induction and perpetuation of liver damage in autoimmune hepatitis (AIH) and autoimmune sclerosing cholangitis (AISC) either through inability of Tregs to restrain proliferation and effector cytokine production by responders or through conversion of Tregs into T helper type 1 (Th1) or type 17 (Th17) effector lymphocytes. We investigated the effect of Treg skewing on the phenotypic and functional properties of CD4(+) CD127(+) CD25(high) cells, an activated subset of Teff, in 32 patients with AIH, 20 with AISC and in 36 healthy subjects (HS)...
June 9, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28591258/immune-development-in-hiv-exposed-uninfected-children-born-to-hiv-infected-women
#13
Maristela Miyamoto, Aída F T B Gouvêa, Erika Ono, Regina Célia M Succi, Savita Pahwa, Maria Isabel de Moraes-Pinto
Immunological and clinical findings suggestive of some immune dysfunction have been reported among HIV-exposed uninfected (HEU) children and adolescents. Whether these defects are persistent or transitory is still unknown. HEU pediatric population at birth, 12 months, 6-12 years were evaluated in comparison to healthy age-matched HIV-unexposed controls. Plasma levels of LPS, sCD14, cytokines, lymphocyte immunophenotyping and T-cell receptor excision circles (TREC) were assessed. HEU and controls had similar LPS levels, which remained low from birth to 6-12 years; for plasma sCD14, IL-2, IL-6, IL-7, IL-10, IL-12p70, IL-13, IL-17, IFN-γ, TNF-α, G-CSF, GM-CSF and MCP-1, which increased from birth to 12 months and then decreased at 6-12 years; and for TREC/106 PBMC at birth in HEU and controls...
June 1, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28589143/exosomes-derived-from-human-umbilical-cord-mesenchymal-stem-cells-relieve-inflammatory-bowel-disease-in-mice
#14
Fei Mao, Yunbing Wu, Xudong Tang, Jingjing Kang, Bin Zhang, Yongmin Yan, Hui Qian, Xu Zhang, Wenrong Xu
Exosomes secreted by mesenchymal stem cells (MSCs) have shown repairing effects on several tissue injury diseases. In this study, we aimed to investigate the effects of exosomes released from human umbilical cord mesenchymal stem cells (hucMSCs) on the treatment of dextran sulfate sodium- (DSS-) induced inflammatory bowel disease (IBD) and to explore the underlying mechanism. We found that indocyanine green (ICG) labeled exosomes homed to colon tissues of IBD mice at 12 hours after injection. Exosomes significantly relieved the severity of IBD in mice as hucMSCs...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28588029/tgf-%C3%AE-inhibits-il-7-induced-proliferation-in-memory-but-not-naive-human-cd4-t-cells
#15
Thao P Nguyen, Scott F Sieg
TGF-β is a potent suppressor of T cell activation and expansion. Although the antiproliferative effects of TGF-β are well characterized in TCR-activated cells, the effects of TGF-β on T cell proliferation driven by homeostatic cytokines, such as IL-7, are poorly defined. In the current study, we found that TGF-β inhibits IL-7-induced proliferation in memory, but not in naive human CD4(+) T cells. TGF-β impaired c-myc induction in all CD4(+) T cell maturation subsets, although the impairment was less sustained in naive CD4(+) T cells...
June 6, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28582466/aberrant-plasma-il-7-and-soluble-il-7-receptor-levels-indicate-impaired-t-cell-response-to-il-7-in-human-tuberculosis
#16
Christian Lundtoft, Anthony Afum-Adjei Awuah, Jens Rimpler, Kirstin Harling, Norman Nausch, Malte Kohns, Ernest Adankwah, Franziska Lang, Laura Olbrich, Ertan Mayatepek, Ellis Owusu-Dabo, Marc Jacobsen
T-cell proliferation and generation of protective memory during chronic infections depend on Interleukin-7 (IL-7) availability and receptivity. Regulation of IL-7 receptor (IL-7R) expression and signalling are key for IL-7-modulated T-cell functions. Aberrant expression of soluble (s) and membrane-associated (m) IL-7R molecules is associated with development of autoimmunity and immune failure in acquired immune deficiency syndrome (AIDS) patients. Here we investigated the role of IL-7/IL-7R on T-cell immunity in human tuberculosis...
June 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28579989/acute-simian-immunodeficiency-virus-infection-triggers-early-and-transient-interleukin-7-production-in-the-gut-leading-to-enhanced-local-chemokine-expression-and-intestinal-immune-cell-homing
#17
Rosalie Ponte, Magali Rancez, Suzanne Figueiredo-Morgado, Jacques Dutrieux, Véronique Fabre-Mersseman, Bénédicte Charmeteau-de-Muylder, Thomas Guilbert, Jean-Pierre Routy, Rémi Cheynier, Anne Couëdel-Courteille
The intestinal barrier, one of the first targets of HIV/simian immunodeficiency virus (SIV) is subjected to major physiological changes during acute infection. Having previously shown that pharmaceutical injection of interleukin-7 (IL-7) triggers chemokine expression in many organs leading to massive T-cell homing, in particular to the intestine, we here explored mucosal IL-7 expression as part of the cytokine storm occurring during the acute phase of SIV infection in rhesus macaques. Quantifying both mRNA and protein in tissues, we demonstrated a transient increase of IL-7 expression in the small intestine of SIV-infected rhesus macaques, starting with local detection of the virus by day 3 of infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28578701/distinct-pathophysiological-cytokine-profiles-for-discrimination-between-autoimmune-pancreatitis-chronic-pancreatitis-and-pancreatic-ductal-adenocarcinoma
#18
Sahar Ghassem-Zadeh, Matthias M Gaida, Szilard Szanyi, Hans Acha-Orbea, Jean-Louis Frossard, Ulf Hinz, Thilo Hackert, Oliver Strobel, Klaus Felix
BACKGROUND: Discriminating between autoimmune pancreatitis (AIP), chronic pancreatitis (CP), and pancreatic ductal adenocarcinoma (PDAC) can be challenging. In this retrospective study, levels of serum and tissue cytokines were analyzed as part of the clinical strategy for the preoperative differentiation between AIP and PDAC. The identification of differential cytokine profiles may help to prevent unnecessary surgical resection and allow optimal treatment of these pathologies. METHODS: To compare the cytokine profiles of AIP, CP, and PDAC patients, serum and pancreatic tissue homogenates were subjected to multiplex analysis of 17 inflammatory mediators...
June 2, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28578025/multimarker-risk-stratification-approach-at-multiple-sclerosis-onset
#19
Lidia Fernández-Paredes, Armanda Casrouge, Jérémie Decalf, Clara de Andrés, Luisa Maria Villar, Rebeca Pérez de Diego, Bárbara Alonso, José Carlos Álvarez Cermeño, Rafael Arroyo, Marta Tejera-Alhambra, Joaquín Navarro, Celia Oreja-Guevara, Margarita López Trascasa, Ansgar Seyfferth, Maria Angel García Martínez, Roberto Álvarez Lafuente, Matthew L Albert, Silvia Sánchez-Ramón
Delay in the diagnosis of multiple sclerosis (MS) stems from the lack of specific clinical and analytical markers to assist in the early diagnosis and prediction of progressive course. We propose a decision-tree model that better defines early at onset MS patients and those with the progressive form by analysing a 12-biomarkers panel in serum and CSF samples of patients with MS, other neurological diseases (OND) and healthy contols. Thus, patients at onset of neurological disease were first classified by serum IL-7 levels <141pg/ml (OR=6...
May 31, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28566276/fra-2-regulates-b-cell-development-by-enhancing-irf4-and-foxo1-transcription
#20
Kenia Ubieta, Mireia Garcia, Bettina Grötsch, Steffen Uebe, Georg F Weber, Merle Stein, Arif Ekici, Georg Schett, Dirk Mielenz, Aline Bozec
The role of AP-1 transcription factors in early B cell development and function is still incompletely characterized. Here we address the role of Fra-2 in B cell differentiation. Deletion of Fra-2 leads to impaired B cell proliferation in the bone marrow. In addition, IL-7-stimulated pro-B cell cultures revealed a reduced differentiation from large pre-B cells to small B cells and immature B cells. Gene profiling and chromatin immunoprecipitation sequencing analyses unraveled a transcriptional reduction of the transcription factors Foxo1, Irf4, Ikaros, and Aiolos in Fra-2-deficient B cells...
May 31, 2017: Journal of Experimental Medicine
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