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https://www.readbyqxmd.com/read/27910764/metabolic-regulation-of-natural-killer-cell-ifn-%C3%AE-production
#1
Annelise Y Mah, Megan A Cooper
Metabolism is critical for a host of cellular functions and provides a source of intracellular energy. It has been recognized recently that metabolism also regulates differentiation and effector functions of immune cells. Although initial work in this field has focused largely on T lymphocytes, recent studies have demonstrated metabolic control of innate immune cells, including natural killer (NK) cells. Here, we review what is known regarding the metabolic requirements for NK cell activation, focusing on NK cell production of interferon-gamma (IFN-γ)...
2016: Critical Reviews in Immunology
https://www.readbyqxmd.com/read/27909407/the-tlr4-active-morphine-metabolite-morphine-3-glucuronide-does-not-elicit-macrophage-classical-activation-in-vitro
#2
Samira Khabbazi, Nan Xie, Wenjun Pu, Yannick Goumon, Marie-Odile Parat
Macrophages are abundant in the tumor microenvironment where they adopt a pro-tumor phenotype following alternative polarization induced by paracrine factors from cancer and stromal cells. In contrast, classically activated macrophages have tumoricidal activities, such that the polarization of tumor-associated macrophages has become a novel therapeutic target. Toll-like receptor 4 engagement promotes classical activation of macrophages, and recent literature suggests TLR4 agonism to prevent metastasis and promote survival in experimental metastasis models...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27908701/inhibitory-effects-of-l-theanine-on-airway-inflammation-in-ovalbumin-induced-allergic-asthma
#3
Yong Pil Hwang, Sun Woo Jin, Jae Ho Choi, Chul Yung Choi, Hyung Gyun Kim, Se Jong Kim, Yongan Kim, Kyung Jin Lee, Young Chul Chung, Hye Gwang Jeong
L-theanine, a water-soluble amino acid isolated from green tea (Camellia sinensis), has anti-inflammatory activity, antioxidative properties, and hepatoprotective effects. However, the anti-allergic effect of L-theanine and its underlying molecular mechanisms have not been elucidated. In this study, we investigated the protective effects of L-theanine on asthmatic responses, particularly airway inflammation and oxidative stress modulation in an ovalbumin (OVA)-induced murine model of asthma. Treatment with L-theanine dramatically attenuated the extensive trafficking of inflammatory cells into bronchoalveolar lavage fluid (BALF)...
November 28, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27907211/characterization-and-immunomodulatory-effects-of-canine-adipose-tissue-and-bone-marrow-derived-mesenchymal-stromal-cells
#4
Keith A Russell, Natalie H C Chow, David Dukoff, Thomas W G Gibson, Jonathan LaMarre, Dean H Betts, Thomas G Koch
BACKGROUND: Mesenchymal stromal cells (MSC) hold promise for both cell replacement and immune modulation strategies owing to their progenitor and non-progenitor functions, respectively. Characterization of MSC from different sources is an important and necessary step before clinical use of these cells is widely adopted. Little is known about the biology and function of canine MSC compared to their mouse or human counterparts. This knowledge-gap impedes development of canine evidence-based MSC technologies...
2016: PloS One
https://www.readbyqxmd.com/read/27907031/in-vitro-pre-clinical-validation-of-suicide-gene-modified-anti-cd33-redirected-chimeric-antigen-receptor-t-cells-for-acute-myeloid-leukemia
#5
Kentaro Minagawa, Muhammad O Jamil, Mustafa Al-Obaidi, Larisa Pereboeva, Donna Salzman, Harry P Erba, Lawrence S Lamb, Ravi Bhatia, Shin Mineishi, Antonio Di Stasi
BACKGROUND: Approximately fifty percent of patients with acute myeloid leukemia can be cured with current therapeutic strategies which include, standard dose chemotherapy for patients at standard risk of relapse as assessed by cytogenetic and molecular analysis, or high-dose chemotherapy with allogeneic hematopoietic stem cell transplant for high-risk patients. Despite allogeneic hematopoietic stem cell transplant about 25% of patients still succumb to disease relapse, therefore, novel strategies are needed to improve the outcome of patients with acute myeloid leukemia...
2016: PloS One
https://www.readbyqxmd.com/read/27903500/primary-resistance-to-pd-1-blockade-mediated-by-jak%C3%A2-mutations
#6
Daniel Sanghoon Shin, Jesse M Zaretsky, Helena Escuin-Ordinas, Angel Garcia-Diaz, Siwen Hu-Lieskovan, Anusha Kalbasi, Catherine S Grasso, Willy Hugo, Salemiz Sandoval, Davis Y Torrejon, Nicolaos Palaskas, Gabriel Abril Rodriguez, Giulia Parisi, Ariel Azhdam, Bartosz Chmielowski, Grace Cherry, Elizabeth Seja, Beata Berent-Maoz, I Peter Shintaku, Dung Thi Le, Drew M Pardoll, Luis A Diaz, Paul C Tumeh, Thomas G Graeber, Roger S Lo, Begoña Comin-Anduix, Antoni Ribas
Loss of function mutations in JAK½ can lead to acquired resistance to anti-programmed death protein 1 (PD-1) therapy. We reasoned they may also be involved in primary resistance to anti-PD-1 therapy. JAK½ inactivating mutations were noted in tumor biopsies of 1 of 23 patients with melanoma and in 1 of 16 patients with mismatch repair deficient colon cancer treated with PD-1 blockade. Both cases had a high mutational load but did not respond to anti-PD-1 therapy. Two out of 48 human melanoma cell lines had JAK½ mutations, which led to lack of PD-L1 expression upon interferon gamma exposure mediated by inability to signal through the interferon gamma receptor pathway...
November 30, 2016: Cancer Discovery
https://www.readbyqxmd.com/read/27902364/markers-of-dengue-severity-systematic-review-of-cytokines-and-chemokines
#7
Yie Hou Lee, Wei Yee Leong, Annelies Wilder-Smith
Prognosis of dengue remains a challenge in allowing the early, objective triage of patients with dengue fever of differing severity. Circulating immuno-modulating proteins have brought new possibilities as prognostic markers of severe dengue. The systematic review is devoted to understanding the potential utility of blood-based cytokines and chemokines as prognostication markers of severe dengue based on current literature. PUBMED and EMBASE were searched. Of 794 candidate articles, 685 abstracts were screened against our exclusion/inclusion criteria and 25 (3...
October 21, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27897452/characterization-of-two-recombinant-hvt-ibd-vaccines-by-vp2-insert-detection-and-cell-mediated-immunity-after-vaccination-of-specific-pathogen-free-chickens
#8
Fiona Ingrao, Fabienne Rauw, Thierry van den Berg, Bénédicte Lambrecht
Infectious bursal disease (IBD) is an avian viral disease that causes severe economic losses in the poultry industry worldwide. The live IBD virus (IBDV) has a potential immunosuppressive effect. Currently available IBDV vaccines have shortcomings, prompting the development of safer and more effective vaccination approaches, including the use of the recombinant turkey herpesvirus vaccine expressing the immunogenic structural VP2 protein of IBDV (rHVT-IBD). The objectives of this study were twofold: (i) to develop in vitro assays and molecular tools to detect the VP2 protein and gene, and (ii) to evaluate cell-mediated immunity (CMI) induced by rHVT-IBD vaccination of day-old specific pathogen-free chickens...
November 29, 2016: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/27891189/variations-in-dna-methylation-of-interferon-gamma-and-programmed-death-1-in-allograft-rejection-after-kidney-transplantation
#9
Karin Boer, L Elly A de Wit, Fleur S Peters, Dennis A Hesselink, Leo J Hofland, Michiel G H Betjes, Caspar W N Looman, Carla C Baan
BACKGROUND: The role of DNA methylation in the regulation of the anti-donor-directed immune response after organ transplantation is unknown. Here, we studied the methylation of two mediators of the immune response: the pro-inflammatory cytokine interferon γ (IFNγ) and the inhibitory receptor programmed death 1 (PD1) in naïve and memory CD8+ T cell subsets in kidney transplant recipients receiving immunosuppressive medication. Both recipients experiencing an episode of acute allograft rejection (rejectors) as well as recipients without rejection (non-rejectors) were included...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27889532/characterisation-of-zbtb46-and-dc-script-znf366-in-rainbow-trout-transcription-factors-potentially-involved-in-dendritic-cell-maturation-and-activation-in-fish
#10
Jun Wang, Tiehui Wang, Ottavia Benedicenti, Catherine Collins, Kaiyu Wang, Christopher J Secombes, Jun Zou
ZBTB46 and DC-SCRIPT/ZNF366 are two zinc finger transcription factors that play important roles in regulating differentiation of dendritic cells in mammals. In this study, the ZBTB46 and DC-SCRIPT/ZNF366 homologues were identified in rainbow trout Oncorhynchus mykiss and their expression analysed in vivo and in vitro. As transcription factors, they are well conserved in sequence, genomic organisation and gene synteny. Their expression was differentially modulated by bacterial and viral PAMPs in the monocyte/macrophage like cell line RTS-11, in primary head kidney (HK) macrophages, and in HK macrophages cultured with IL-4/13A...
November 23, 2016: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/27889107/combination-of-the-anthocyanidins-malvidin-and-peonidin-attenuates-lipopolysaccharide-mediated-inflammatory-gene-expression-in-primary-human-adipocytes
#11
Jessica D Mackert, Michael K McIntosh
We recently demonstrated that California table grapes and a methanol-extractable, polyphenol-rich fraction decreased adiposity, insulin resistance, or markers of inflammation in high-fat fed mice. Malvidin and peonidin glycosides were the 2 most abundant anthocyanins in the polyphenol-rich fraction. We hypothesized that a blood borne combination of anthocyanidins malvidin and peonidin derived from intestinal β-glycosidase metabolism of these 2 anthocyanins are responsible, in part, for the beneficial health effects observed in vivo...
November 10, 2016: Nutrition Research
https://www.readbyqxmd.com/read/27888334/capacity-of-lactic-acid-bacteria-in-immunity-enhancement-and-cancer-prevention
#12
REVIEW
Muhammad Shahid Riaz Rajoka, Junling Shi, Jing Zhu, Dongyan Shao, Qingsheng Huang, Hui Yang, Mingliang Jin
Lactic acid bacteria are associated with the human gastrointestinal tract. They are important for maintaining the balance of microflora in the human gut. An increasing number of published research reports in recent years have denoted the importance of producing interferon-gamma and IgA for treatment of disease. These agents can enhance the specific and nonspecific immune systems that are dependent on specific bacterial strains. The mechanisms of these effects were revealed in this investigation, where the cell walls of these bacteria were modulated by the cytokine pathways, while the whole bacterial cell mediated the host cell immune system and regulated the production of tumor necrosis factors and interleukins...
November 26, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27887611/the-performance-of-interferon-gamma-release-assay-in-nontuberculous-mycobacterial-diseases-a-retrospective-study-in-china
#13
Mao-Shui Wang, Jun-Li Wang, Xin-Feng Wang
BACKGROUND: The interferon-gamma release assay (IGRA) is more specific than the tuberculin skin test to discriminate between tuberculosis (TB) and nontuberculous mycobacterial (NTM) diseases. Here we performed a retrospective study to evaluate the performance of the T-SPOT.TB in patients with NTM diseases. METHODS: Between March, 2013 and Nov, 2015, a total of 58 patients with NTM diseases had a T-SPOT.TB performed were enrolled, 30 patients had definite NTM diseases, 28 had probable diseases...
November 25, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27883926/application-of-genetically-engineered-salmonella-typhimurium-for-interferon-gamma-induced-therapy-against-melanoma
#14
Wonsuck Yoon, Yoo Chang Park, Jinseok Kim, Yang Seok Chae, Jung Hye Byeon, Sang-Hyun Min, Sungha Park, Young Yoo, Yong Keun Park, Byeong Mo Kim
Salmonella have been experimentally used as anti-cancer agents, because they show selective growth in tumours. In this study, we genetically modified attenuated Salmonella typhimurium to express and secrete interferon-gamma (IFN-γ) as a tumouricidal agent to enhance the therapeutic efficacy of Salmonella. IFN-γ was fused to the N-terminal region (residues 1-160) of SipB (SipB160) for secretion from bacterial cells. Attenuated S. typhimurium expressing recombinant IFN-γ (S. typhimurium (IFN-γ)) invaded the melanoma cells and induced cytotoxicity...
November 21, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27878107/imaging-the-nadh-nad-homeostasis-for-understanding-the-metabolic-response-of-mycobacterium-to-physiologically-relevant-stresses
#15
Shabir A Bhat, Iram K Iqbal, Ashwani Kumar
The NADH:NAD(+) ratio is the primary indicator of the metabolic state of bacteria. NAD(H) homeostasis is critical for Mycobacterium tuberculosis (Mtb) survival and is thus considered an important drug target, but the spatio-temporal measurements of NAD(H) remain a challenge. Genetically encoded fluorescent biosensors of the NADH:NAD(+) ratios were recently described, paving the way for investigations of the metabolic state of pathogens during infection. Here we have adapted the genetically encoded biosensor Peredox for measurement of the metabolic state of Mtb in vitro and during infection of macrophage cells...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27876506/fungal-peptides-from-pneumonitis-hypersensitivity-etiologic-agents-are-able-to-induce-specific-cellular-immune-response
#16
Anne-Pauline Bellanger, Thibaud Lignon, Yann Godet, Bénédicte Rognon, Gabriel Reboux, Houssein Gbaguidi-Haore, Christophe Borg, Laurence Millon
PURPOSE: Hypersensitivity pneumonitis (HP) is an immunoallergic disease due to chronic exposure to high quantities of different microorganisms such as Mycobacterium immunogenum (Mi), a mycobacterium, and Lichtheimia corymbifera (Lc), a filamentous fungus. It has recently been demonstrated that the protein DLDH (dihydrolipoyl dehydrogenase), is common to these microorganisms. This study aimed to investigate the immune potential of overlapping peptide pools covering the MiDLDH and LcDLDH...
November 19, 2016: Journal of Immunological Methods
https://www.readbyqxmd.com/read/27871914/neonatal-levels-of-adiponectin-interleukin-10-and-interleukin-12-are-associated-with-the-risk-of-developing-type-1-diabetes-in-childhood-and-adolescence-a-nationwide-danish-case-control-study
#17
Steffen U Thorsen, Christian B Pipper, Stefanie Eising, Kristin Skogstrand, David M Hougaard, Jannet Svensson, Flemming Pociot
BACKGROUND/AIM: An in-depth understanding of the early phase of type 1 diabetes (T1D) pathogenesis is important for targeting primary prevention. We examined if 14 preselected mediators of immune responses differed in neonates that later developed T1D compared to control neonates. METHODS: The study is a case-control study with a 1:2 matching. The individuals were born between 1981 through 2002. Cases were validated using the National Patient Register and the Danish Childhood Diabetes Register...
November 15, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/27871783/human-dental-pulp-stem-cells-suppress-alloantigen-induced-immunity-by-stimulating-t-cells-to-release-transforming-growth-factor-beta
#18
Kyu Hwan Kwack, Jung Min Lee, Sang Hyuk Park, Hyeon Woo Lee
INTRODUCTION: Human dental pulp stem cells (hDPSCs) are ideal candidates for regenerating damaged dental tissue. To examine the possibility that hDPSCs may be used to regenerate pulp, we tested their in vitro effects on acute allogeneic immune responses. METHODS: A peripheral blood mononuclear cell (PBMC) proliferation assay and immunoglobulin (Ig) production assay were performed to evaluate the immunosuppressive properties of hDPSCs. RESULTS: The mixed lymphocyte reaction was suppressed by incubation with hDPSCs...
November 18, 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27865203/minocycline-prevents-cerebral-malaria-confers-neuroprotection-and-increases-survivability-of-mice-during-plasmodium-berghei-anka-infection
#19
Thittayil Suresh Apoorv, Phanithi Prakash Babu
Cerebral malaria (CM) is a neurological complication arising due to Plasmodium falciparum or Plasmodium vivax infection. Minocycline, a semi-synthetic tetracycline, has been earlier reported to have a neuroprotective role in several neurodegenerative diseases. In this study, we investigated the effect of minocycline treatment on the survivability of mice during experimental cerebral malaria (ECM). The currently accepted mouse model, C57BL/6 mice infected with Plasmodium berghei ANKA, was used for the study...
November 16, 2016: Cytokine
https://www.readbyqxmd.com/read/27863906/post-translational-control-of-intracellular-pathogen-sensing-pathways
#20
REVIEW
Cindy Chiang, Michaela U Gack
Mammalian cells recognize virus-derived nucleic acids using a defined set of intracellular sensors including the DNA sensors cyclic GMP-AMP (cGAMP) synthase (cGAS) and interferon gamma (IFNγ)-inducible protein 16 (IFI16) as well as viral RNA receptors of the retinoic acid-inducible gene I (RIG-I)-like receptor (RLR) family. Following innate immune recognition, these sensors launch an immune response that is characterized by the transcriptional upregulation of many antiviral molecules, including proinflammatory cytokines, chemokines, and IFN-stimulated genes...
November 15, 2016: Trends in Immunology
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