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Immunometabolism

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https://www.readbyqxmd.com/read/29233860/pathway-analysis-of-transcriptomic-data-shows-immunometabolic-effects-of-vitamin-d
#1
Amadeo Muñoz Garcia, Martina Kutmon, Lars Eijssen, Martin Hewison, Chris T Evelo, Susan L Coort
Unbiased genomic screening analyses have highlighted novel immunomodulatory properties of the active form of vitamin D, 1,25-dihydroxyvitamin D (1,25(OH)2D). However, clearer interpretation of the resulting gene expression data is limited by cell model specificity. The aim of the current study was to provide a broader perspective on common gene regulatory pathways associated with innate immune responses to 1,25(OH)2D, through systematic re-interrogation of existing gene expression databases from multiple related monocyte models (the THP-1 monocytic cell line (THP-1), monocyte-derived dendritic cells (DCs), and monocytes)...
December 12, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29226911/immunometabolism-in-2017-driving-immunity-all-roads-lead-to-metabolism
#2
Edward J Pearce, Erika L Pearce
No abstract text is available yet for this article.
December 11, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/29226756/voluntary-wheel-running-improves-adipose-tissue-immunometabolism-in-ovariectomized-low-fit-rats
#3
Terese M Zidon, Young-Min Park, Rebecca J Welly, Makenzie L Woodford, Rebecca J Scroggins, Steven L Britton, Lauren G Koch, Frank W Booth, Jaume Padilla, Jill A Kanaley, Victoria J Vieira-Potter
Loss of ovarian hormones is associated with increased adiposity, white adipose tissue (WAT) inflammation, and insulin resistance (IR). Previous work demonstrated ovariectomized (OVX) rats bred for high aerobic fitness (HCR) are protected against weight gain and IR compared to rats bred for low aerobic fitness (LCR) yet wheel running prevents OVX-induced IR in LCR rats. The purpose of this study was to determine whether adipose tissue immunometabolic characteristics from female HCR and LCR rats differs before or after OVX, and whether wheel running mitigates OVX-induced adipose tissue immunometabolic changes in LCR rats...
December 11, 2017: Adipocyte
https://www.readbyqxmd.com/read/29222582/introduction-to-the-special-issue-on-dietary-control-of-immunometabolism
#4
EDITORIAL
Ludger Scheja, Joerg Heeren
No abstract text is available yet for this article.
December 8, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/29222040/prohibitin-a-new-player-in-immunometabolism-and-in-linking-obesity-and-inflammation-with-cancer
#5
Yang Xin Zi Xu, Sudharsana Rao Ande, Suresh Mishra
Immunometabolism, which has important implications in cancer biology, has emerged as a major regulator of different immune cell types. Various factors that integrate metabolic switches within immune cells with signal directed program that promote or inhibit their functions remain largely unidentified. Furthermore, sex differences are known to exist in immune functions and cancer incidences in the body and sex steroid hormones are integral component of these differences. However, factors that mediate such differences, and the potential link between the two fundamental aspects of immune cell biology that contributes to sex differences in health and disease remain unexplored...
December 5, 2017: Cancer Letters
https://www.readbyqxmd.com/read/29213268/exploring-non-metabolic-functions-of-glycolytic-enzymes-in-immunity
#6
REVIEW
Scott M Seki, Alban Gaultier
At the beginning of the twentieth century, discoveries in cancer research began to elucidate the idiosyncratic metabolic proclivities of tumor cells (1). Investigators postulated that revealing the distinct nutritional requirements of cells with unchecked growth potential would reveal targetable metabolic vulnerabilities by which their survival could be selectively curtailed. Soon thereafter, researchers in the field of immunology began drawing parallels between the metabolic characteristics of highly proliferative cancer cells and those of immune cells that respond to perceived threats to host physiology by invading tissues, clonally expanding, and generating vast amounts of pro-inflammatory effector molecules to provide the host with protection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29212894/hiv-and-cardiovascular-disease-role-of-immunometabolic-perturbations
#7
REVIEW
Eman Teer, M Faadiel Essop
The successful rollout of anti-retroviral therapy ensured that HIV is increasingly managed as a chronic condition. HIV-positive persons are therefore exhibiting increased cardiovascular complications. This review focuses on the emerging role of "immunometabolism" within the context of HIV-related immune dysregulation and cardiovascular disease onset. Here, persistent immune activation contributes to pathophysiological perturbations during early infection, resulting in immune cell metabolic reprogramming and the activation of coagulation pathways in HIV-positive individuals...
January 1, 2018: Physiology
https://www.readbyqxmd.com/read/29209828/regulation-of-immunometabolism-in-adipose-tissue
#8
REVIEW
Manju Kumari, Joerg Heeren, Ludger Scheja
Adipose tissue has emerged as a major player in driving obesity-related inflammatory response. In obesity, chronic infiltration of macrophages in adipose tissue mediates local and systemic inflammation and acts as a key contributor to insulin resistance. In the past few years, adipose tissue plasticity and remodeling capacity has been studied extensively to develop therapeutic targets to combat obesity and related metabolic dysfunction. Progress in understanding the potential of adipocytes and contribution of macrophages and other immune cells to control immunometabolism in disease state has provided us new potential intervention targets to explore such as the formation of heat-producing beige adipocytes in white adipose tissue and the polarization of macrophages from an inflammatory toward an anti-inflammatory phenotype...
December 5, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/29183965/regulation-of-proinflammatory-monocyte-activation-by-the-kynurenine-ahr-axis-underlies-immunometabolic-control-of-depressive-behavior-in-mice
#9
Xiaojie Zang, Xiao Zheng, Yuanlong Hou, Miaomiao Hu, Hong Wang, Xiaoqiang Bao, Fang Zhou, Guangji Wang, Haiping Hao
Elevated kynurenine (Kyn) production from tryptophan (Trp) metabolism is a biomarker of immune dysregulation in depression, but its mechanistic contributions to the behavioral symptoms are poorly defined. In this study, Kyn was shown to be a metabolic regulator of proinflammatory monocytes that orchestrated peripheral immune activation and neuroinflammation in depressive mice. Kyn-induced depressive behavior was paralleled by brain infiltration of proinflammatory monocytes and astrocytic activation. Kyn enhanced chemokine (C-C motif) ligand-2-mediated chemotaxis of monocytes and their proinflammatory capability on cocultured astrocytes in vitro, which involved the activation of aryl hydrocarbon receptor (AhR) signaling...
November 28, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29176872/para-hydroxyphenylpyruvate-inhibits-the-pro-inflammatory-stimulation-of-macrophage-preventing-lps-mediated-nitro-oxidative-unbalance-and-immunometabolic-shift
#10
Rosella Scrima, Marta Menga, Consiglia Pacelli, Francesca Agriesti, Olga Cela, Claudia Piccoli, Antonella Cotoia, Alessandra De Gregorio, Julia V Gefter, Gilda Cinnella, Nazzareno Capitanio
Targeting metabolism is emerging as a promising therapeutic strategy for modulation of the immune response in human diseases. In the presented study we used the lipopolysaccharide (LPS)-mediated activation of RAW 264.7 macrophage-like cell line as a model to investigate changes in the metabolic phenotype and to test the effect of p-hydroxyphenylpyruvate (pHPP) on it. pHPP is an intermediate of the PHE/TYR catabolic pathway, selected as analogue of the ethyl pyruvate (EP), which proved to exhibit antioxidant and anti-inflammatory activities...
2017: PloS One
https://www.readbyqxmd.com/read/29170670/metabolic-adaptation-of-human-cd4-and-cd8-t-cells-to-t-cell-receptor-mediated-stimulation
#11
Nicholas Jones, James G Cronin, Garry Dolton, Silvia Panetti, Andrea J Schauenburg, Sarah A E Galloway, Andrew K Sewell, David K Cole, Catherine A Thornton, Nigel J Francis
Linking immunometabolic adaptation to T-cell function provides insight for the development of new therapeutic approaches in multiple disease settings. T-cell activation and downstream effector functions of CD4(+) and CD8(+) T-cells are controlled by the strength of interaction between the T-cell receptor (TCR) and peptides presented by human leukocyte antigens (pHLA). The role of TCR-pHLA interactions in modulating T-cell metabolism is unknown. Here, for the first time, we explore the relative contributions of the main metabolic pathways to functional responses in human CD4(+) and CD8(+) T-cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29166590/interleukin-33-activated-islet-resident-innate-lymphoid-cells-promote-insulin-secretion-through-myeloid-cell-retinoic-acid-production
#12
Elise Dalmas, Frank M Lehmann, Erez Dror, Stephan Wueest, Constanze Thienel, Marcela Borsigova, Marc Stawiski, Emmanuel Traunecker, Fabrizio C Lucchini, Dianne H Dapito, Sandra M Kallert, Bruno Guigas, Francois Pattou, Julie Kerr-Conte, Pierre Maechler, Jean-Philippe Girard, Daniel Konrad, Christian Wolfrum, Marianne Böni-Schnetzler, Daniela Finke, Marc Y Donath
Pancreatic-islet inflammation contributes to the failure of β cell insulin secretion during obesity and type 2 diabetes. However, little is known about the nature and function of resident immune cells in this context or in homeostasis. Here we show that interleukin (IL)-33 was produced by islet mesenchymal cells and enhanced by a diabetes milieu (glucose, IL-1β, and palmitate). IL-33 promoted β cell function through islet-resident group 2 innate lymphoid cells (ILC2s) that elicited retinoic acid (RA)-producing capacities in macrophages and dendritic cells via the secretion of IL-13 and colony-stimulating factor 2...
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29162500/the-emerging-role-of-immune-dysfunction-in-mitochondrial-diseases-as-a-paradigm-for-understanding-immunometabolism
#13
REVIEW
Senta M Kapnick, Susan E Pacheco, Peter J McGuire
Immunometabolism aims to define the role of intermediary metabolism in immune cell function, with bioenergetics and the mitochondria recently taking center stage. To date, the medical literature on mitochondria and immune function extols the virtues of mouse models in exploring this biologic intersection. While the laboratory mouse has become a standard for studying mammalian biology, this model comprises part of a comprehensive approach. Humans, with their broad array of inherited phenotypes, serve as a starting point for studying immunometabolism; specifically, patients with mitochondrial disease...
November 18, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29161079/a-new-frontier-in-immunometabolism-cholesterol-in-lung-health-and-disease
#14
Michael B Fessler
The lung has a unique relationship to cholesterol that is shaped by its singular physiology. On the one hand, the lungs receive the full cardiac output and have a predominant dependence on plasma lipoprotein uptake for their cholesterol supply. On the other hand, surfactant lipids, including cholesterol, are continually susceptible to oxidation owing to direct environmental exposure and must be cleared or recycled because of the very narrow biophysical mandates placed upon surfactant lipid composition. Interestingly, increased lipid-laden macrophage "foam cells" have been noted in a wide range of human lung pathologies...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29138369/-metabolic-competition-in-tumor-microenvironment
#15
Shingo Eikawa, Heiichiro Udono
Metabolic pathways tightly regulate T cell response in host defense against infection and cancer. Glycolysis plays a key role in effector T cell differentiation and its function. More recent studies have demonstrated that tumor microenvironment forms hypoxia and metabolic disadvantage of immune cells. These environmental attributions impair the effector T cell survival, proliferation and function. Therefore repurposing of metabolic drugs might develop a novel cancer immunotherapy based on the targeting of T cell immunometabolism...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29133782/mtor-intersects-antibody-inducing-signals-from-taci-in-marginal-zone-b-cells
#16
Jordi Sintes, Maurizio Gentile, Shuling Zhang, Yolanda Garcia-Carmona, Giuliana Magri, Linda Cassis, Daniel Segura-Garzón, Alessandra Ciociola, Emilie K Grasset, Sabrina Bascones, Laura Comerma, Marc Pybus, David Lligé, Irene Puga, Cindy Gutzeit, Bing He, Wendy DuBois, Marta Crespo, Julio Pascual, Anna Mensa, Juan Ignacio Aróstegui, Manel Juan, Jordi Yagüe, Sergi Serrano, Josep Lloreta, Eric Meffre, Michael Hahne, Charlotte Cunningham-Rundles, Beverly A Mock, Andrea Cerutti
Mechanistic target of rapamycin (mTOR) enhances immunity in addition to orchestrating metabolism. Here we show that mTOR coordinates immunometabolic reconfiguration of marginal zone (MZ) B cells, a pre-activated lymphocyte subset that mounts antibody responses to T-cell-independent antigens through a Toll-like receptor (TLR)-amplified pathway involving transmembrane activator and CAML interactor (TACI). This receptor interacts with mTOR via the TLR adapter MyD88. The resulting mTOR activation instigates MZ B-cell proliferation, immunoglobulin G (IgG) class switching, and plasmablast differentiation through a rapamycin-sensitive pathway that integrates metabolic and antibody-inducing transcription programs, including NF-κB...
November 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29132538/immunometabolic-profiling-of-t-cells-from-patients-with-relapsing-remitting-multiple-sclerosis-reveals-an-impairment-in-glycolysis-and-mitochondrial-respiration
#17
Claudia La Rocca, Fortunata Carbone, Veronica De Rosa, Alessandra Colamatteo, Mario Galgani, Francesco Perna, Roberta Lanzillo, Vincenzo Brescia Morra, Giuseppe Orefice, Ilaria Cerillo, Ciro Florio, Giorgia Teresa Maniscalco, Marco Salvetti, Diego Centonze, Antonio Uccelli, Salvatore Longobardi, Andrea Visconti, Giuseppe Matarese
BACKGROUND: Metabolic reprogramming is shaped to support specific cell functions since cellular metabolism controls the final outcome of immune response. Multiple sclerosis (MS) is an autoimmune disease resulting from loss of immune tolerance against central nervous system (CNS) myelin. Metabolic alterations of T cells occurring during MS are not yet well understood and their studies could have relevance in the comprehension of the pathogenetic events leading to loss of immune tolerance to self and to develop novel therapeutic strategies aimed at limiting MS progression...
December 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29119048/elucidating-immunometabolic-targets-in-glioblastoma
#18
REVIEW
Pooja Agarwal, Michael J Pajor, David M Anson, Maheedhara R Guda, Collin M Labak, Andrew J Tsung, Kiran K Velpula
Immunometabolism has recently emerged on the forefront of cancer research as a new avenue to potentially develop more effective and targeted treatment options. Several pathologically altered metabolic targets across various cancer types have been identified, including lactate in aerobic glycolysis; tryptophan in amino acid metabolism; and arginine in the urea cycle. Numerous advancements have improved our understanding of the dual function of these targets in influencing immune functions as an auxiliary function to their well-established metabolic role...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29117706/the-role-of-metabolite-sensing-g-protein-coupled-receptors-in-inflammation-and-metabolic-disease
#19
Carlota Recio, Daniel Lucy, Poppy Iveson, Asif J Iqbal, Sophia Valaris, Graham Wynne, Angela J Russell, Robin Choudhury, Chris O'Callaghan, Claudia Monaco, David Robert Greaves
Great attention has been placed on the link between metabolism and immune function giving rise to the term "immunometabolism". It is widely accepted that inflammation and oxidative stress are key processes that underlie metabolic complications during obesity, diabetes and atherosclerosis. Therefore, identifying the mechanisms and mediators that are involved in the regulation of both inflammation and metabolic homeostasis is of high scientific and therapeutic interest. G protein-coupled receptors (GPCRs) that signal in response to metabolites have emerged as attractive therapeutic targets in inflammatory disease...
November 8, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29109541/immunometabolism-t-cells-activate-the-fear
#20
Shimona Starling
No abstract text is available yet for this article.
November 7, 2017: Nature Reviews. Immunology
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