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https://www.readbyqxmd.com/read/28345149/t-vaginalis-exosome-like-vesicles-modify-the-cytokine-profile-and-reduce-inflammation-in-parasite-infected-mice
#1
Luis Mario Olmos-Ortiz, Marco Barajas-Mendiola, Miriam Barrios-Rodiles, Laura E Castellano, Sergio Arias-Negrete, Eva E Avila, Patricia Cuéllar-Mata
Trichomonas vaginalis (Tv) is a flagellated parasite commonly spread through sexual transmission. This protozoan initiates a severe inflammatory process, inducing nitric oxide, interleukin-6 (IL-6), IL-8, IL-10, IL-17, and IL-22 production by host immune cells. The parasites elicit these responses by releasing surface lipophosphoglycan, small extracellular vesicles (exosomes) and other factors. Tv exosomes are similar to mammalian exosomes and have been implicated in the modulation of IL-8 secretion by epithelial cells...
March 27, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28337387/pro-and-anti-inflammatory-cytokines-in-children-with-malaria-in-franceville-gabon
#2
Sandrine Lydie Oyegue-Liabagui, Aline Gaëlle Bouopda-Tuedom, Lady Charlène Kouna, Sydney Maghendji-Nzondo, Herman Nzoughe, Nina Tchitoula-Makaya, Irene Pegha-Moukandja, Jean-Bernard Lekana-Douki
Severe Plasmodium falciparum malaria anemia (SMA) is a major cause of mortality in pediatric wards. Variations in inflammatory mediator production play an essential role in disease outcomes. Indeed, several studies have shown the involvement of pro- and anti-inflammatory cytokines such as IFN-γ, IL-6, TNF-α and IL-10 in malaria immunopathology. In other hand the exact role of Th17 cytokines such as IL-17, IL-22 and IL-21 in malaria remains poorly documented. Here, we investigated IFN-γ, TNF-α, IL-6, IL-12, IL-10, IL-4, IL-13, IL-17, IL-22 and IL-21 circulating levels and their association with malaria anemia and parasitemia in Gabonese children...
2017: American Journal of Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28330898/antigen-presenting-human-%C3%AE-%C3%AE-t-cells-promote-intestinal-cd4-t-cell-expression-of-il-22-and-mucosal-release-of-calprotectin
#3
Christopher J Tyler, Neil E McCarthy, James O Lindsay, Andrew J Stagg, Bernhard Moser, Matthias Eberl
The cytokine IL-22 plays a critical role in mucosal barrier defense, but the mechanisms that promote IL-22 expression in the human intestine remain poorly understood. As human microbe-responsive Vγ9/Vδ2 T cells are abundant in the gut and recognize microbiota-associated metabolites, we assessed their potential to induce IL-22 expression by intestinal CD4(+) T cells. Vγ9/Vδ2 T cells with characteristics of APCs were generated from human blood and intestinal organ cultures, then cocultured with naive and memory CD4(+) T cells obtained from human blood or the colon...
March 22, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28327412/response-of-inos-and-its-relationship-with-il-22-and-stat3-in-macrophage-activity-in-the-polar-forms-of-leprosy
#4
Jorge Rodrigues de Sousa, Raphael Primo Martins de Sousa, Tinara Leila de Souza Aarão, Leonidas Braga Dias, Francisca Regina Oliveira Carneiro, Juarez Antonio Simões Quaresma
Leprosy is a chronic granulomatous infection that manifests as different clinical forms related to the immunological response. The aim of the study was to evaluated the response of IL-22, STAT3, CD68 and iNOS in leprosy skin lesions. The mean number IL-22 positive cells was 12.12±1.90 cells/field in the TT form and 31.31±2.91 cells/field in the LL form. STAT3 positive cells was 5.29±1.96 cells/field in the TT form, while this number was 11.13±3.48 cells/field in the LL form. The mean number of CD68 positive cells was 25...
March 18, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28323264/antimicrobial-il-22
#5
Laurie A Dempsey
No abstract text is available yet for this article.
March 22, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28322925/il-22-suppresses-the-infection-of-porcine-enteric-coronaviruses-and-rotavirus-by-activating-stat3-signal-pathway
#6
Mei Xue, Jing Zhao, Lan Ying, Fang Fu, Lin Li, Yanlong Ma, Hongyan Shi, Jiaoer Zhang, Li Feng, Pinghuang Liu
Interleukin-22 (IL-22), a member of the IL-10 superfamily, plays essential roles in fighting against mucosal microbial infection and maintaining mucosal barrier integrity within the intestine. However, little knowledge exists on the ability of porcine IL-22 (pIL-22) to fight against viral infection in the gut. In this study, we found that recombinant mature pIL-22 (mpIL-22) inhibited the infection of multiple diarrhea viruses, including alpha coronavirus, porcine epidemic diarrhea virus (PEDV), transmissible gastroenteritis virus (TGEV), and porcine rotavirus (PoRV), in the intestinal porcine epithelial cell line J2 (IPEC-J2) cells...
March 16, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28303135/a-human-lin-cd123-cd127-low-population-endowed-with-ilc-features-and-migratory-capabilities-contributes-to-immunopathological-hallmarks-of-psoriasis
#7
Luz María Mora-Velandia, Octavio Castro-Escamilla, Andrés González Méndez, Cristina Aguilar-Flores, Martha Velázquez-Avila, María Isabel Tussié-Luna, Juan Téllez-Sosa, César Maldonado-García, Fermín Jurado-Santacruz, Eduardo Ferat-Osorio, Jesus Martínez-Barnetche, Rosana Pelayo, Laura C Bonifaz
Innate lymphoid cells (ILC) are members of a heterogeneous family with a lymphoid origin that mimics the T helper (Th) cytokine profile. ILC are involved in early effector cytokine-mediated responses during infections in peripheral tissues. ILC also play an important role in chronic skin inflammatory diseases, including psoriasis. Although classical ILC express CD127, it has been recently reported that the presence of non-classical CD127(-) ILC populations and an early ILC precursor (EILP) CD127(low). ILC development has predominately been investigated in mouse models...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28301515/il-22-gm-csf-and-il-17-in-peripheral-cd4-t-cell-subpopulations-during-multiple-sclerosis-relapses-and-remission-impact-of-corticosteroid-therapy
#8
Nathalie Muls, Zakia Nasr, Hong Anh Dang, Christian Sindic, Vincent van Pesch
Multiple sclerosis (MS) is thought to be a Th17-mediated dysimmune disease of the central nervous system. However, recent publications have questioned the pathogenicity of IL-17 per se and rather suggest the implication of other Th17-related inflammatory mediators. Therefore, we studied the expression of GM-CSF, IL-22, IL-24, IL-26 and CD39 in peripheral blood mononuclear cells (PBMCs) from MS patients during relapses, remission and following corticosteroid treatment. We performed qPCR to measure mRNA levels from ex vivo or in vitro-stimulated PBMCs...
2017: PloS One
https://www.readbyqxmd.com/read/28297833/-effect-of-allogenic-mesenchymal-stem-cells-transplantation-on-the-expression-of-interleukin-22-and-matrix-metalloproteinase-3-in-rats-with-collagen-induced-arthritis
#9
G Y Liu, S Bian, F Li, X F Li, K Fan, H Z An, X X Jia
Objective: To study the effect of allogeneic bone marrow mesenchymal stem cells transplantation on the expression of interleukin -22 (IL-22), matrix metalloproteinase -3 (MMP-3) in serum and synovial of rats with collagen induced arthritis. Methods: Type Ⅱ collagen were injected twice to establish the collagen induced arthritis (CIA) rat model. Forty-eight rats were randomly divided into 3 groups: control group, CIA control group, CIA experiment group. Rat bone marrow mesenchymal stem cells were cultured by bone marrow method combined with adherent culture method...
March 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28297772/-effect-of-interleukin-22-on-proliferation-and-activation-of-hepatic-stellate-cells-induced-by-acetaldehyde-and-related-mechanism
#10
Y H Ni, L J Huo, T T Li
Objective: To investigate the effect of interleukin-22 (IL-22) on the activation and proliferation of hepatic stellate cells (HSCs) induced by acetaldehyde, as well as the role of the antioxidant axis Nrf2-keap1-ARE. Methods: Hepatic stellate cell-T6 (HSC-T6) cells were cultured in vitro, and after 24 and 48 hours of acetaldehyde stimulation at various concentrations (25, 50, 100, 200, and 400 μmol/L), MTT assay was used to measure cell proliferation rate to screen out the optimal conditions for model establishment...
January 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28295238/il-17-and-il-22-in-immunity-driving-protection-and-pathology
#11
REVIEW
Eyerich Kilian, Dimartino Valentina, Cavani Andrea
IL-17 and IL-22 are tissue-signaling cytokines that favor protection and regeneration of barrier organs such as the skin, lung, and gastrointestinal system. Both cytokines share cellular sources, signaling pathways, and functional aspects; however, taking a closer look they differ, e.g. in their pro-inflammatory or regenerative potential. A dysbalance of the carefully orchestrated tissue-signaling system might result in autoimmune diseases, promote cancer growth, or predispose to infectious diseases. This review highlights recent understandings in cellular sources, signaling mechanisms, physiologic as well as pathogenic role of the double-faceted cytokines IL-17 and IL-22...
March 15, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28288964/il-38-overexpression-induces-anti-inflammatory-effects-in-mice-arthritis-models-and-in-human-macrophages-in-vitro
#12
Marie-Astrid Boutet, Aurélie Najm, Géraldine Bart, Régis Brion, Sophie Touchais, Valérie Trichet, Pierre Layrolle, Cem Gabay, Gaby Palmer, Frédéric Blanchard, Benoit Le Goff
OBJECTIVES: Interleukin (IL)-38 is a newly characterised cytokine that belongs to the IL-1 family. This cytokine is expressed in the rheumatoid arthritis (RA) synovial tissue and IL-38 deficient mice have exacerbated arthritis. Here, we analysed the effect of IL-38 overexpression in the joints of arthritic mice, in human macrophages and synovial fibroblasts in vitro. METHODS: Articular injections of an adeno-associated virus (AAV) 2/8 encoding IL-38 were performed in collagen-induced arthritis (CIA), K/BxN serum transfer-induced arthritis (STIA) and antigen-induced arthritis (AIA) in mice...
March 13, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28286877/il-22-controls-iron-dependent-nutritional-immunity-against-systemic-bacterial-infections
#13
Kei Sakamoto, Yun-Gi Kim, Hideki Hara, Nobuhiko Kamada, Gustavo Caballero-Flores, Emanuela Tolosano, Miguel P Soares, José L Puente, Naohiro Inohara, Gabriel Núñez
Host immunity limits iron availability to pathogenic bacteria, but whether immunity limits pathogenic bacteria from accessing host heme, the major source of iron in the body, remains unclear. Using Citrobacter rodentium, a mouse enteric pathogen and Escherichia coli, a major cause of sepsis in humans as models, we find that interleukin-22, a cytokine best known for its ability to promote epithelial barrier function, also suppresses the systemic growth of bacteria by limiting iron availability to the pathogen...
February 2017: Science Immunology
https://www.readbyqxmd.com/read/28284938/human-il-6r-hi-tigit-cd4-cd127-low-cd25-t-cells-display-potent-in-vitro-suppressive-capacity-and-a-distinct-th17-profile
#14
Ricardo C Ferreira, Daniel B Rainbow, Arcadio Rubio García, Marcin L Pekalski, Linsey Porter, João J Oliveira, Frank Waldron-Lynch, Linda S Wicker, John A Todd
To date many clinical studies aim to increase the number and/or fitness of CD4(+)CD127(low)CD25(+) regulatory T cells (Tregs) in vivo to harness their regulatory potential in the context of treating autoimmune disease. Here, we sought to define the phenotype and function of Tregs expressing the highest levels of IL-6 receptor (IL-6R). We have identified a population of CD4(+)CD127(low)CD25(+) TIGIT(-) T cells distinguished by their elevated IL-6R expression that lacked expression of HELIOS, showed higher CTLA-4 expression, and displayed increased suppressive capacity compared to IL-6R(hi)TIGIT(+) Tregs...
March 9, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28283063/systemic-human-ilc-precursors-provide-a-substrate-for-tissue-ilc-differentiation
#15
Ai Ing Lim, Yan Li, Silvia Lopez-Lastra, Ralph Stadhouders, Franziska Paul, Armanda Casrouge, Nicolas Serafini, Anne Puel, Jacinta Bustamante, Laura Surace, Guillemette Masse-Ranson, Eyal David, Helene Strick-Marchand, Lionel Le Bourhis, Roberto Cocchi, Davide Topazio, Paolo Graziano, Lucia Anna Muscarella, Lars Rogge, Xavier Norel, Jean-Michel Sallenave, Matthieu Allez, Thomas Graf, Rudi W Hendriks, Jean-Laurent Casanova, Ido Amit, Hans Yssel, James P Di Santo
Innate lymphoid cells (ILCs) represent innate versions of T helper and cytotoxic T cells that differentiate from committed ILC precursors (ILCPs). How ILCPs give rise to mature tissue-resident ILCs remains unclear. Here, we identify circulating and tissue ILCPs in humans that fail to express the transcription factors and cytokine outputs of mature ILCs but have these signature loci in an epigenetically poised configuration. Human ILCPs robustly generate all ILC subsets in vitro and in vivo. While human ILCPs express low levels of retinoic acid receptor (RAR)-related orphan receptor C (RORC) transcripts, these cells are found in RORC-deficient patients and retain potential for EOMES(+) natural killer (NK) cells, interferon gamma-positive (IFN-γ(+)) ILC1s, interleukin (IL)-13(+) ILC2s, and for IL-22(+), but not for IL-17A(+) ILC3s...
March 9, 2017: Cell
https://www.readbyqxmd.com/read/28276465/cytochrome-p450s-in-human-immune-cells-regulate-il-22-and-c-kit-via-an-ahr-feedback-loop
#16
Renate Effner, Julia Hiller, Stefanie Eyerich, Claudia Traidl-Hoffmann, Knut Brockow, Massimo Triggiani, Heidrun Behrendt, Carsten B Schmidt-Weber, Jeroen T M Buters
The mechanisms how environmental compounds influence the human immune system are unknown. The environmentally sensitive transcription factor aryl hydrocarbon receptor (AHR) has immune-modulating functions and responds to small molecules. Cytochrome P4501 enzymes (CYP1) act downstream of the AHR and metabolize small molecules. However, it is currently unknown whether CYP1 activity is relevant for immune modulation. We studied the interdependence of CYP1 and AHR in human primary immune cells using pharmacological methods...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28272440/epidermal-cd147-expression-plays-a-key-role-in-il-22-induced-psoriatic-dermatitis
#17
Cong Peng, ShengXi Zhang, Li Lei, Xu Zhang, Xuekun Jia, Zhongling Luo, Xiaoyan Huang, Yanhong Kuang, Weiqi Zeng, Juan Su, Xiang Chen
Psoriasis is a chronic inflammatory skin disease characterized by abnormal keratinocyte proliferation and terminal differentiation. Interleukin-22 (IL-22) and the transcription factor Stat3 play pivotal roles in the pathogenesis of psoriasis. CD147 is a transmembrane glycosylation protein that belongs to the immunoglobulin superfamily. Our previous studies have shown that CD147 is a marker of high keratinocyte proliferation and poor keratinocyte differentiation as well as a psoriasis susceptibility gene. The current study demonstrates that CD147 is highly expressed in psoriatic skin lesions...
March 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28265480/proximity-to-a-major-road-and-plasma-cytokines-in-school-aged-children
#18
Franziska Rosser, Erick Forno, John Brehm, Yueh-Ying Han, Nadia Boutaoui, Angel Colón-Semidey, María Alvarez, Edna Acosta-Pérez, Kristen S Kurland, John F Alcorn, Glorisa Canino, Juan C Celedón
Traffic-related air pollution (TRAP) may affect immune responses, including those in the TH2 and TH17 pathways. To examine whether TRAP is associated with plasma level of TH17-, TH1-, and TH2-related cytokines in children with and without asthma, a cross-sectional study of 577 children (ages 6-14 years) with (n = 294) and without (n = 283) asthma in San Juan (Puerto Rico) was performed. Residential distance to a major road was estimated using geocoded home addresses for study participants. A panel of 14 cytokines, enriched for the TH17 pathway, was measured in plasma...
September 1, 2016: Pediatric Allergy, Immunology, and Pulmonology
https://www.readbyqxmd.com/read/28261212/%C3%AE-2%C3%A2-1-fructans-modulate-the-immune-system-in-vivo-in-a-microbiota-dependent-and%C3%A2-independent-fashion
#19
Floris Fransen, Neha M Sahasrabudhe, Marlies Elderman, Margaret Bosveld, Sahar El Aidy, Floor Hugenholtz, Theo Borghuis, Ben Kousemaker, Simon Winkel, Christa van der Gaast-de Jongh, Marien I de Jonge, Mark V Boekschoten, Hauke Smidt, Henk A Schols, Paul de Vos
It has been shown in vitro that only specific dietary fibers contribute to immunity, but studies in vivo are not conclusive. Here, we investigated degree of polymerization (DP) dependent effects of β2→1-fructans on immunity via microbiota-dependent and -independent effects. To this end, conventional or germ-free mice received short- or long-chain β2→1-fructan for 5 days. Immune cell populations in the spleen, mesenteric lymph nodes (MLNs), and Peyer's patches (PPs) were analyzed with flow cytometry, genome-wide gene expression in the ileum was measured with microarray, and gut microbiota composition was analyzed with 16S rRNA sequencing of fecal samples...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28247861/novel-role-for-il-22-in-protection-during-chronic-mycobacterium-tuberculosis-hn878-infection
#20
P Treerat, O Prince, A Cruz-Lagunas, M Muñoz-Torrico, M A Salazar-Lezama, M Selman, B Fallert-Junecko, T A Reinhardt, J F Alcorn, D Kaushal, J Zuñiga, J Rangel-Moreno, J K Kolls, S A Khader
Approximately 2 billion people are infected with Mycobacterium tuberculosis (Mtb), resulting in 1.4 million deaths every year. Among Mtb-infected individuals, clinical isolates belonging to the W-Beijing lineage are increasingly prevalent, associated with drug resistance, and cause severe disease immunopathology in animal models. Therefore, it is exceedingly important to identify the immune mechanisms that mediate protection against rapidly emerging Mtb strains, such as W-Beijing lineage. IL-22 is a member of the IL-10 family of cytokines with both protective and pathological functions at mucosal surfaces...
March 1, 2017: Mucosal Immunology
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