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interferon-gamma

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https://www.readbyqxmd.com/read/29145422/missense-mutation-at-cldn8-associated-with-a-high-plasma-interferon-gamma-inducible-protein-10-level-in-methadone-maintained-patients-with-urine-test-positive-for-morphine
#1
Tung-Hsia Liu, Ren-Hua Chung, Sheng-Chang Wang, Chiu-Ping Fang, Hsiao-Hui Tsou, Chia-Lung Shih, Hsiang-Wei Kuo, Yun Wang, Yu-Li Liu
We previously reported a high plasma chemokine interferon gamma-inducible protein 10 (IP-10) level and prolonged electrocardiography QT-interval in methadone maintenance treatment (MMT) patients with HIV or HCV infection. The purpose of this study was to evaluate the genetic association of high plasma IP-10 level in the MMT patients. The gene-based and pathway-based association analyses were conducted using a genome-wide association study dataset in 344 MMT patients for identifying genes and pathways associated with plasma IP-10 level...
2017: PloS One
https://www.readbyqxmd.com/read/29144049/characterization-of-children-with-recurrent-eczema-herpeticum-and-response-to-treatment-with-interferon-gamma
#2
Kavita Darji, Stephanie Frisch, Eric Adjei Boakye, Elaine Siegfried
BACKGROUND/OBJECTIVES: Interferon gamma (IFN-γ) has been used treat severe atopic dermatitis, with equivocal results. Recurrent eczema herpeticum is an underappreciated, therapeutically challenging complication of severe atopic dermatitis. Defects in IFN-γ and other cytokine pathways have been identified in individuals with confirmed eczema herpeticum. This suggests possible benefit from IFN-γ treatment for confirmed eczema herpeticum. The objective of the current study was to evaluate immunologic and microbial parameters and response to IFN-γ treatment in children with confirmed eczema herpeticum...
November 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/29141239/exposing-toxoplasma-gondii-hiding-inside-the-vacuole-a-role-for-gbps-autophagy-and-host-cell-death
#3
REVIEW
Jeroen P Saeij, Eva-Maria Frickel
The intracellular parasite Toxoplasma gondii resides inside a vacuole, which shields it from the host's intracellular defense mechanisms. The cytokine interferon gamma (IFNγ) upregulates host cell effector pathways that are able to destroy the vacuole, restrict parasite growth and induce host cell death. Interferon-inducible GTPases such as the Guanylate Binding Proteins (GBPs), autophagy proteins and ubiquitin-driven mechanisms play important roles in Toxoplasma control in mice and partly also in humans. The host inflammasome is regulated by GBPs in response to bacterial infection in murine cells and may also respond to Toxoplasma infection...
November 12, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/29141128/immune-enhancing-effect-of-nanometric-lactobacillus-plantarum-nf1-nlp-nf1-in-a-mouse-model-of-cyclophosphamide-induced-immunosuppression
#4
Dae-Woon Choi, Sun Young Jung, Jisu Kang, Young-Do Nam, Seong-Il Lim, Ki Tae Kim, Hee Soon Shin
Nanometric Lactobacillus plantarum nF1 (nLp-nF1) is a biogenics consisting of dead L. plantarum pre-treated with heat and a nanodispersion process. In this study, we investigated the immune-enhancing effects of nLp-nF1 in vivo and in vitro. To evaluate the immunostimulatory effects of nLp-nF1, mice immunosuppressed by cyclophosphamide (CPP) treatment were administered with nLp-nF1. As expected, CPP restricted the immune response of mice, whereas oral administration of nLp-nF1 significantly increased total IgG in serum, and cytokine production [interleukin-12 (IL-12) and tumor necrosis factor alpha (TNF-α)] in bone marrow cells...
November 15, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29140946/comparison-of-the-quantiferon-tb-gold-in-tube-assay-with-tuberculin-skin-test-for-the-diagnosis-of-latent-tuberculosis-infection-among-hiv-infected-and-uninfected-children
#5
Walter Dehority, Rolando M Viani, Maria Rosario G Araneta, Graciano Lopez, Stephen A Spector
BACKGROUND: Diagnosis of latent tuberculosis infection (LTBI) is facilitated by tuberculin skin testing (TST) or interferon-gamma release assays such as the QuantiFERON TB Gold In-Tube (QTF-GIT) assays. Limited data exist on the utility of interferon-gamma release assays in HIV-infected children, which may be falsely negative due to immunosuppression. METHODS: A cross-sectional study comparing TST to QTF-GIT for the diagnosis of suspected LTBI was performed in children in Tijuana, Mexico, and in San Diego, California...
December 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29136358/is-secretion-of-ifn-gamma-in-response-to-mycobacterium-tuberculosis-antigens-in-youngest-children-sufficient-to-play-a-role-in-tb-diagnostics
#6
Teresa Bielecka, Anna Komorowska-Piotrowska, Katarzyna Krenke, Wojciech Feleszko, Marek Kulus
OBJECTIVES: To assess whether children ≤5 years of age, produce sufficient amounts of interferon gamma (IFN-ɣ) in response to phytohaemagglutinin (mitogen), and Mycobacterium tuberculosis antigens (TB antigens) in the QuantiFERON-TB Gold in-Tube test (QFT-GIT), (Cellestis Ltd., Australia). WORKING HYPOTHESIS: Is TB-antigen-induced IFN-ɣ response in children ≤5 years sufficient to consider QFT-GIT a possible tool for TB diagnostics? Study design, patient-subject selection, and methods: We recruited children 0-17 years old suspected of TB infection to this cross-sectional study, in whom QFT-GIT and TST were performed...
November 14, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29126656/the-effect-of-i%C3%AE%C2%BAk-16-on-lipopolysaccharide-induced-impaired-monocytes
#7
Norman J Galbraith, Stephen Manek, Samuel Walker, Campbell Bishop, Jane V Carter, Meredith Cahill, Sarah A Gardner, Hiram C Polk, Susan Galandiuk
This study focuses on impaired monocyte function, which occurs in some patients after trauma, major elective surgery, or sepsis. This monocyte impairment increases the risk of secondary infection and death. We aimed to determine the influence IκK-16 had on monocytes using an ex-vivo model of human monocyte impairment. We included the effects of the well-studied comparators interferon-gamma (IFN-γ) and granulocyte-macrophage colony-stimulating factor (GM-CSF) on impaired monocytes. Primary human monocytes were stimulated with 10ng/mL of lipopolysaccharide (LPS) for 16h and then challenged with 100ng/mL LPS to assess the monocyte inflammatory response...
October 28, 2017: Immunobiology
https://www.readbyqxmd.com/read/29126292/safety-and-immunogenicity-of-inactivated-varicella-zoster-virus-vaccine-in-adults-with-autoimmune-disease-a-phase-2-randomized-double-blind-placebo-controlled-clinical-trial
#8
Michael Eberhardson, Stephen Hall, Kim A Papp, Tina M Sterling, Jon E Stek, Lei Pang, Yanli Zhao, Janie Parrino, Zoran Popmihajlov
Background: Immunogenicity and safety of inactivated zoster vaccine (ZVIN) were evaluated in adults with autoimmune disease. Methods: Adults with autoimmune disease treated with immunosuppressive therapy (biologic or nonbiologic) were randomized to receive 4 doses of ZVIN, ZVIN containing a higher quantity of antigen, or placebo. To measure varicella-zoster virus (VZV)-specific immune responses using glycoprotein enzyme-linked immunosorbent assay (gpELISA) and interferon-gamma enzyme-linked immunospot (IFN-γ ELISPOT), blood samples were collected at baseline, post-doses 2, 3, and 4...
October 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29123884/a-case-of-cerebral-tuberculoma-mimicking-neurocysticercosis
#9
Hiroko Yuzawa, Yousuke Hirose, Tomonori Kimura, Sho Kimura, Hisanori Sugawara, Asako Yanagisawa, Sono Toi, Takashi Ohashi, Tomohito Sadahiro
Case: A 42-year-old Peruvian woman residing in Japan for 11 years with a family history of neurocysticercosis presented to our intensive care unit with fever and intense headache.Computed tomography indicated multiple micronodular lesions in the brain parenchyma, and cerebral tuberculoma and neurocysticercosis were considered in the differential diagnosis. Neurocysticercosis was initially suspected, and oral praziquantel was initiated. However, because of a high adenosine deaminase level in the cerebrospinal fluid and positive peripheral blood interferon gamma release test result, cerebral tuberculoma was subsequently considered...
July 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29123173/effect-of-vitamin-d-supplementation-on-inflammation-and-nuclear-factor-kappa-b-activity-in-overweight-obese-adults-a-randomized-placebo-controlled-trial
#10
Aya Mousa, Negar Naderpoor, Josphin Johnson, Karly Sourris, Maximilian P J de Courten, Kirsty Wilson, Robert Scragg, Magdalena Plebanski, Barbora de Courten
In-vitro studies suggest that vitamin D reduces inflammation by inhibiting nuclear factor kappa-B (NFκB) activity. Yet, no trials have examined the effects of vitamin D supplementation on NFκB activity in-vivo in humans. We conducted a double-blind randomized trial (RCT) examining effects of vitamin D supplementation on inflammatory markers and NFκB activity in peripheral blood mononuclear cells (PBMCs). Sixty-five overweight/obese, vitamin D-deficient (25-hydroxyvitamin D [25(OH)D] ≤ 50 nmol/L) adults were randomized to a single 100,000 IU bolus followed by 4,000 IU daily cholecalciferol or matching placebo for 16 weeks...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29122311/-uveitis-diagnostic-work-up-recommendations-from-an-expert-committee
#11
P Sève, B Bodaghi, S Trad, J Sellam, D Bellocq, P Bielefeld, D Sène, G Kaplanski, D Monnet, A Brézin, M Weber, D Saadoun, P Cacoub, C Chiquet, L Kodjikian
INTRODUCTION: Diagnostic work-up of uveitis involves many uncertainties. Search for an etiology should take into account the epidemiology of uveitis and focus on the most severe diseases or those, which can be treated. This work was undertaken to establish recommendations for the diagnosis work-up of uveitis. METHODS: Recommendations were developed by a multidisciplinary panel of 15 experts, including internists, ophthalmologists and a rheumatologist and are based on a review of the literature with regard to effectiveness of investigations and the results of the ULISSE study, which is the first prospective study assessing the efficiency of a standardized strategy for the etiological diagnosis of uveitis...
November 6, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29114547/predictive-factors-of-response-to-immunotherapy-a-review-from-the-spanish-melanoma-group-gem
#12
REVIEW
Enrique Espinosa, Ivan Márquez-Rodas, Ainara Soria, Alfonso Berrocal, Jose Luis Manzano, Maria Gonzalez-Cao, Salvador Martin-Algarra
Immunotherapy has become a key element in the treatment of several tumors, such as lung carcinoma and melanoma. Immunotherapy, unlike classical chemotherapy and targeted drugs, may yield long-term survival, even in patients who stop treatment due to toxicity. This fact has generated considerable excitement and a real shift in the paradigm of cancer treatment. However, only a small subset of patients benefit from immunotherapy. Survival curves show that most patients have progression of the disease in the first months after starting immunotherapy, followed by a slower decrease over the first 3 years, until curves reach a plateau...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29113698/the-control-of-oligodendrocyte-bioenergetics-by-interferon-gamma-ifn-%C3%AE-and-src-homology-region-2-domain-containing-phosphatase-1-shp-1
#13
Scott B Minchenberg, Paul T Massa
Glycolysis and mitochondrial respiration are essential for oligodendrocyte metabolism in both the developing and adult CNS. Based on recent reports on the effects of the proinflammatory cytokine IFN-γ on metabolism and on oligodendrocytes, we addressed whether IFN-γ may affect oligodendrocyte bioenergetics in ways relevant to CNS disease. Oligodendrocytes of mice treated with IFN-γ showed significant reductions in aerobic glycolysis and mitochondrial respiration. As expected, IFN-γ treatment led to the induction of STAT1 in oligodendrocytes indicating active signaling into these cells...
October 28, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29111087/angiogenic-factor-screening-in-women-with-mild-preeclampsia-new-and-significant-proteins-in-plasma
#14
Karol Charkiewicz, Elwira Jasinska, Joanna Goscik, Ewa Koc-Zorawska, Marcin Zorawski, Pawel Kuc, Grzegorz Raba, Tomasz Kluz, Jaroslaw Kalinka, Agata Sakowicz, Piotr Laudanski
INTRODUCTION: The aim of this study was to analyse a panel of 60 angiogenic factors (pro-angiogenic and antiangiogenic) in the plasma of women with mild preeclampsia. MATERIALS AND METHODS: We recruited 21 women between 25 and 40 weeks gestation with diagnosed mild preeclampsia into the study group and 27 healthy women with uncomplicated pregnancies of corresponding gestational age to that of the study to the control group. We used a quantitative protein macroarray method that allowed for analysis of 60 angiogenic proteins per sample simultaneously...
October 27, 2017: Cytokine
https://www.readbyqxmd.com/read/29109952/is-tb-testing-associated-with-increased-blood-interferon-gamma-levels
#15
Aideen E Kennedy, Jim O'Mahony, Noel Byrne, John MacSharry, Riona G Sayers
The Republic of Ireland reports a relatively low prevalence of Johne's disease (JD) compared to international counterparts. Postulated reasons for this include a lower average herd size and a grass-based production system. Ireland also engages in high levels of bovine tuberculosis (bTB) testing. As interferon-gamma (IFN-γ) is believed to play a key role in protecting against JD, it is our hypothesis that administration of purified protein derivative (PPD), as part of the bTB test, is associated with a systemic increase in IFN-γ production, which may potentially limit clinical progression of the disease...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29109772/the-anti-tumor-effects-of-m1-macrophage-loaded-poly-ethylene-glycol-and-gelatin-based-hydrogels-on-hepatocellular-carcinoma
#16
Alberto Daniel Guerra, Oscar W H Yeung, Xiang Qi, W John Kao, Kwan Man
Background and Aims: Recently we reported that direct injection of M1 macrophages significantly caused tumor regression in vivo. Despite the promising result, a major limitation in translating this approach is the induction of acute inflammatory response. To improve the strategy, a biocompatible scaffold for cell presentation and support is essential to control cell fate. Here, we aimed to elucidate the anti-tumor effects of a poly(ethylene glycol) diacrylate (PEGdA) and thiolated gelatin poly(ethylene glycol) (Gel-PEG-Cys) cross-linked hydrogels capsulated with M1 macrophages in both in vitro and in vivo disease models...
2017: Theranostics
https://www.readbyqxmd.com/read/29109732/ccl3-enhances-antitumor-immune-priming-in-the-lymph-node-via-ifn%C3%AE-with-dependency-on-natural-killer-cells
#17
Frederick Allen, Peter Rauhe, David Askew, Alexander A Tong, Joseph Nthale, Saada Eid, Jay T Myers, Caryn Tong, Alex Y Huang
Lymph node (LN) plays a critical role in tumor cell survival outside of the primary tumor sites and dictates overall clinical response in many tumor types (1, 2). Previously, we and others have demonstrated that CCL3 plays an essential role in orchestrating T cell-antigen-presenting cell (APC) encounters in the draining LN following vaccination, and such interactions enhance the magnitude of the memory T cell pool (3-5). In the current study, we investigate the cellular responses in the tumor-draining lymph nodes (TDLNs) of a CCL3-secreting CT26 colon tumor (L3TU) as compared to wild-type tumor (WTTU) during the priming phase of an antitumor response (≤10 days)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29108749/sensitivity-and-specificity-of-quantiferon-tb-gold-plus-compared-with-quantiferon-tb-gold-in-tube-and-t-spot-tb-on-active-tuberculosis-in-japan
#18
Jin Takasaki, Toshie Manabe, Eriko Morino, Yoshikazu Muto, Masao Hashimoto, Motoyasu Iikura, Shinyu Izumi, Haruhito Sugiyama, Koichiro Kudo
BACKGROUND: The QuantiFERON-TB Gold Plus (QFT-Plus) was introduced in 2015 as a new generation of interferon-gamma release assays (IGRAs) designed to detect Mycobacterium tuberculosis infection (TB). Examination of its diagnostic accuracy is crucial before it is launched in Japan. METHOD: We examined 99 patients with laboratory-confirmed active TB (patients) and 117 healthy volunteers with no risk of TB infection (controls) at a medical center in Tokyo, Japan. Blood samples were collected from both the patients and controls and tested using three types of IGRAs: the QFT-Plus, the QuantiFERON-TB Gold In-Tube (QFT-GIT), and the T-SPOT...
November 3, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29106333/monomethyl-fumarate-treatment-impairs-maturation-of-human-myeloid-dendritic-cells-and-their-ability-to-activate-t-cells
#19
Maria Antonietta Mazzola, Radhika Raheja, Keren Regev, Vanessa Beynon, Felipe von Glehn, Anu Paul, Isabelle Pierre, Pia Kivisakk, Howard L Weiner, Roopali Gandhi
BACKGROUND: Dimethyl fumarate (DMF) and its active metabolite monomethyl fumarate (MMF) effectively lead to reduction in disease relapses and active magnetic resonance imaging (MRI) lesions. DMF and MMF are known to be effective in modulating T- and B-cell responses; however, their effect on the phenotype and function of human myeloid dendritic cells (mDCs) is not fully understood. OBJECTIVE: To investigate the role of MMF on human mDCs maturation and function. METHODS: mDCs from healthy controls were isolated and cultured in vitro with MMF...
November 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/29103189/modulation-of-the-interleukin-21-pathway-with-interleukin-4-distinguishes-common-variable-immunodeficiency-patients-with-more-non-infectious-clinical-complications
#20
Marylin Desjardins, Marianne Béland, Marieme Dembele, Duncan Lejtenyi, Jean-Phillipe Drolet, Martine Lemire, Christos Tsoukas, Moshe Ben-Shoshan, Francisco J D Noya, Reza Alizadehfar, Christine T McCusker, Bruce D Mazer
PURPOSE: Common variable immunodeficiency (CVID) is characterized by hypogammaglobulinemia and clinical manifestations such as infections, autoimmunity, and malignancy. We sought to determine if responsiveness to interleukin-21 (IL-21), a key cytokine for B cell differentiation, correlates with distinct clinical phenotypes in CVID. METHODS: CVID subjects were recruited through the Canadian Primary Immunodeficiency Evaluative Survey registry. Peripheral blood mononuclear cells were cultured with anti-CD40 ± interferon-gamma, interleukin-4 (IL-4), IL-21, and/or IL-4+IL-21...
November 4, 2017: Journal of Clinical Immunology
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