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Interleukin 17

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https://www.readbyqxmd.com/read/29793054/bacillus-clausii-inhibits-bone-loss-by-skewing-treg-th17-cell-equilibrium-in-postmenopausal-osteoporotic-mice-model
#1
Hamid Y Dar, Subhashis Pal, Prashant Shukla, Pradyumna K Mishra, Geetanjali B Tomar, Naibedya Chattopadhyay, Rupesh K Srivastava
OBJECTIVES: Postmenopausal osteoporosis is one of most commonly occurring skeletal diseases leading to bone loss and fragility. Probiotics have been associated with various immunomodulatory properties and thus can be exploited to enhance bone health. In the present study, we report, to our knowledge for the first time, that oral administration of Bacillus clausii (BC) in postmenopausal osteoporotic (OVX) mice model enhances bone health. METHODS: BC was selected as probiotic of choice due to its established immunomodulatory properties...
March 20, 2018: Nutrition
https://www.readbyqxmd.com/read/29792901/identification-and-functional-characterization-including-cytokine-production-modulation-of-the-novel-chicken-interleukin-11
#2
Anh Duc Truong, Yeojin Hong, Deivendran Rengaraj, Janggeun Lee, Kyungbaek Lee, Yeong Ho Hong
Interleukin (IL)-11 plays an important role in the immune system. However, IL-11 has not yet been characterized in avian species, including chickens. This study is the first to clone and functionally characterize chicken IL-11 (chIL-11). Multiple alignments and phylogenetic tree comparisons of chIL-11 with IL-11 proteins from other species revealed high levels of conservation and a close relationship between chicken and Japanese quail IL-11. Our results demonstrate that chIL-11 was a functional ligand of IL-11RA and IL-6ST in chicken HD11 and OU2 cell lines, as well as activated and regulated JAK-STAT, NF-κB, PI3K/AKT, and MAPK signaling pathways in chicken cell lines...
May 21, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29792391/role-of-neutrophils-in-equine-asthma
#3
Benjamin Uberti, Gabriel Morán
Neutrophilic bronchiolitis is the primary lesion in asthma-affected horses. Neutrophils are key actors in host defense, migrating toward sites of inflammation and infection, where they act as early responder cells toward external insults. However, neutrophils can also mediate tissue damage in various non-infectious inflammatory processes. Within the airways, these cells likely contribute to bronchoconstriction, mucus hypersecretion, and pulmonary remodeling by releasing pro-inflammatory mediators, including the cytokines interleukin (IL)-8 and IL-17, neutrophil elastase, reactive oxygen species (ROS), and neutrophil extracellular traps (NETs)...
May 24, 2018: Animal Health Research Reviews
https://www.readbyqxmd.com/read/29791877/enzyme-assisted-extraction-chemical-characteristics-and-immunostimulatory-activity-of-polysaccharides-from-korean-ginseng-panax-ginseng-meyer
#4
Young-Ran Song, Su-Kyung Sung, Mi Jang, Tae-Gyu Lim, Chang-Won Cho, Chun-Ji Han, Hee-Do Hong
In this study, enzyme-assisted extraction was used to isolate functional polysaccharides from Korean ginseng (Panax ginseng Meyer) and the physicochemical and biological properties of the extracted polysaccharides were investigated, comparing with those from traditional hot-water extraction (FGWP). In macrophages, their effects on cytokines production could be ordered as FGEP-CA ≥ FGEP-A > FGEP-C > FGWP, suggesting that FGEP-CA (combined cellulase- and α-amylase-extracted polysaccharide) is a potent immunostimulator...
May 20, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29789477/ms-ms-guided-isolation-of-clarinoside-a-new-anti-inflammatory-pentalogin-derivative
#5
Coralie Audoin, Adam Zampalégré, Natacha Blanchet, Alexandre Giuliani, Emmanuel Roulland, Olivier Laprévote, Grégory Genta-Jouve
Re-investigation of the chemical composition of the annual plant Mitracarpus scaber Zucc. led to the identification of clarinoside, a new pentalogin derivative containing a rare quinovose moiety, and the known compound harounoside. While the planar structure was fully determined using tandem mass spectrometry (MS) and quantum mechanics (QM) calculations, the tridimensional structure was unravelled after isolation and NMR analysis. The absolute configuration was assigned by comparison of experimental and theoretical synchrotron radiation circular dichroism spectra...
May 22, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29788087/a-murine-frailty-index-based-on-clinical-and-laboratory-measurements-links-between-frailty-and-pro-inflammatory-cytokines-differ-in-a-sex-specific-manner
#6
Alice E Kane, Kaitlyn M Keller, Stefan Heinze-Milne, Scott A Grandy, Susan E Howlett
A frailty index based on clinical deficit accumulation (FI-Clinical) quantifies frailty in aging mice. We aimed to develop a laboratory test-based murine FI tool (FI-Lab) and to investigate the effects of age and sex on FI-Lab scores, FI-Clinical scores and the combination (FI-Combined), as well as to explore links between frailty and inflammation. Studies used older (17 & 23-months) C57BL/6 mice of both sexes. We developed an FI-Lab (blood pressure, blood chemistry, echocardiography) based on deviation from reference values in younger adults (12 months), which showed similar characteristics to a human FI-Lab tool...
May 18, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29786457/xanthine-oxidase-inhibitors-and-sepsis
#7
Maria Fátima de Paula Ramos, Alceni do Carmo Morais Monteiro de Barros, Clara Versolato Razvickas, Fernanda T Borges, Nestor Schor
Xanthine oxidase activation occurs in sepsis and results in the generation of uric acid (UrAc) and reactive oxygen species (ROS). We aimed to evaluate the effect of xanthine oxidase inhibitors (XOis) in rats stimulated with lipopolysaccharide (LPS). LPS (10 mg/kg) was administered intraperitoneally (i.p.) immediately after allopurinol (Alo, 2 mg/kg) or febuxostat (Feb, 1 mg/kg) every 24 h for 3 days. To increase UrAc levels, oxonic acid (Oxo) was administered by gavage (750 mg/kg per day) for 5 days...
January 2018: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/29782541/an-unappreciated-role-for-neutrophil-dc-hybrids-in-immunity-to-invasive-fungal-infections
#8
J Scott Fites, Michael Gui, John F Kernien, Paige Negoro, Zeina Dagher, David B Sykes, Jeniel E Nett, Michael K Mansour, Bruce S Klein
Neutrophils are classically defined as terminally differentiated, short-lived cells; however, neutrophils can be long-lived with phenotypic plasticity. During inflammation, a subset of neutrophils transdifferentiate into a population called neutrophil-DC hybrids (PMN-DCs) having properties of both neutrophils and dendritic cells. While these cells ubiquitously appear during inflammation, the role of PMN-DCs in disease remains poorly understood. We observed the differentiation of PMN-DCs in pre-clinical murine models of fungal infection: blastomycosis, aspergillosis and candidiasis...
May 21, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29782265/-changes-of-nonspecific-proteinases-and-proinflammatory-cytokines-in-the-clinical-course-of-acute-myocardial-infarction-of-various-severity
#9
O V Soldatova, A V Kubyshkin, A I Gordienko, I I Fomochkina
PURPOSE: to study changes of serum levels of nonspecific proteinases, their inhibitors, and proinflammatory cytokines during short term observation of patients with acute myocardial infarction (MI). MATERIALS AND METHODS: We included in this prospective short-term study 82 patients (27 with uncomplicated non-Q wave MI, 30 with Q-MI complicated by Killip class I-II acute left ventricular failure [ALVF], 17 with Q-MI complicated by Killip class III-IV ALVF, and 8 non-survivors due to development of cardiogenic shock) and 12 healthy controls...
March 2018: Kardiologiia
https://www.readbyqxmd.com/read/29781361/erythromycin-combined-with-corticosteroid-reduced-inflammation-and-modified-trauma-induced-tracheal-stenosis-in-a-rabbit-model
#10
Qin Enyuan, Xu Mingpeng, Gan Luoman, Gan Jinghua, Li Yu, Li Wentao, Hou Changchun, Li Lihua, Meng Xiaoyan, Zhou Lei, Liu Guangnan
BACKGROUND: Patients with endotracheal intubation or tracheostomy are subject to benign tracheal stenosis (TS), for which current therapies are unsatisfactory. We conducted a preliminary investigation of drugs and drug combinations for the prevention and treatment of TS in a rabbit model. METHODS: Fifty-four rabbits were apportioned into nine groups according to treatment: sham-operated control; untreated TS model; amikacin; budesonide; erythromycin; penicillin; amikacin + budesonide; erythromycin + budesonide; and penicillin + budesonide...
January 2018: Therapeutic Advances in Respiratory Disease
https://www.readbyqxmd.com/read/29779777/interleukin-23-interleukin-17-axis-activated-by-mycobacterium-avium-complex-mac-is-attenuated-in-patients-with-mac-lung-disease
#11
Chin-Chung Shu, Jann-Yuan Wang, Ming-Fang Wu, Hsin-Chih Lai, Bor-Luen Chiang, Chong-Jen Yu
BACKGROUND: Mycobacterium avium complex (MAC)-lung disease (LD) is increasing in patients without human immunodeficiency virus infection. However, data on host vulnerability to MAC-related immune responses, and in particular the interleukin (IL)-23/IL-17 axis, are lacking. METHODS: We enrolled 50 patients with MAC-LD, 25 age-matched patients with tuberculosis (TB) and 25 controls. We measured levels of plasma cytokines, and studied IL-12/IL-17 responses in macrophage and lymphocyte activation to MAC...
May 2018: Tuberculosis
https://www.readbyqxmd.com/read/29776658/ustekinumab-for-refractory-giant-cell-arteritis-a-prospective-52-week-trial
#12
Richard Conway, Lorraine O'Neill, Phil Gallagher, Geraldine M McCarthy, Conor C Murphy, Douglas J Veale, Ursula Fearon, Eamonn S Molloy
OBJECTIVES: Giant cell arteritis (GCA) is the most common form of systemic vasculitis. Glucocorticoids are an effective treatment but have significant adverse events and relapses are common. Interleukins 12 (IL-12) and 23 (IL-23) stimulate TH 1 and TH 17 responses and are implicated in the pathogenesis of GCA. The aim of this study was to evaluate the efficacy and safety of IL-12/23 blockade with ustekinumab in GCA. METHODS: We performed a prospective open label study of ustekinumab in patients with refractory GCA...
April 22, 2018: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29774240/mannan-induced-nos2-in-macrophages-enhances-il-17-driven-psoriatic-arthritis-by-innate-lymphocytes
#13
Jianghong Zhong, Tatjana Scholz, Anthony C Y Yau, Simon Guerard, Ulrike Hüffmeier, Harald Burkhardt, Rikard Holmdahl
Previous identification of the inducible nitric oxide synthase (NOS2) gene as a risk allele for psoriasis (Ps) and psoriatic arthritis (PsA) suggests a possible pathogenic role of nitric oxide (NO). Using a mouse model of mannan-induced Ps and PsA (MIP), where macrophages play a regulatory role by releasing reactive oxygen species (ROS), we found that NO was detectable before disease onset in mice, independent of a functional nicotinamide adenine dinucleotide phosphate oxidase 2 complex. MIP was suppressed by either deletion of Nos2 or inhibition of NO synthases with NG-nitro-l-arginine methyl ester, demonstrating that Nos2-derived NO is pathogenic...
May 2018: Science Advances
https://www.readbyqxmd.com/read/29773890/intraperitoneal-administration-of-the-anti-il-23-antibody-prevents-the-establishment-of-intestinal-nematodes-in-mice
#14
M Gomez-Samblas, D Bernal, A Bolado-Ortiz, S Vilchez, F Bolás-Fernández, A M Espino, M Trelis, A Osuna
Previous studies have established that an increased Th-9 response creates a hostile environment for nematode parasites. Given that IL-23, a cytokine required for maintenance of the IL-17-secreting phenotype, has inhibitory effects on IL-9 production, we hypothesized that reducing circulating IL-23 by treatment with anti-IL-23 antibodies would reduce the establishment and development of parasitic intestinal nematodes. In this study, we show that animals treated with anti-IL-23 monoclonal antibodies showed a drastic reduction in the number of mouse pinworms (Aspiculuris tetraptera) recovered from the intestine (p < 0...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773006/antimelanogenesis-and-anti-inflammatory-activity-of-selected-culinary-medicinal-mushrooms
#15
Hazwani Mat Saad, Kae Shin Sim, Yee Shin Tan
Five culinary-medicinal mushrooms are commonly available in the Malaysian market: Agaricus bisporus (white and brown), Ganoderma lucidum, Hypsizygus marmoreus, Pleurotus floridanus, and P. pulmonarius. These species were selected for use in the current study, the aim of which was to investigate the antimelanogenesis and anti-inflammatory activity of these mushrooms in an attempt to evaluate their potential use in cosmeceuticals. Mushroom fruiting bodies were extracted with hot water, and the extracts were freeze-dried before testing...
2018: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/29770137/gut-microbiota-confers-resistance-of-albino-oxford-rats-to-the-induction-of-experimental-autoimmune-encephalomyelitis
#16
Suzana Stanisavljević, Miroslav Dinić, Bojan Jevtić, Neda Đedović, Miljana Momčilović, Jelena Đokić, Nataša Golić, Marija Mostarica Stojković, Đorđe Miljković
Albino Oxford (AO) rats are extremely resistant to induction of experimental autoimmune encephalomyelitis (EAE). EAE is an animal model of multiple sclerosis, a chronic inflammatory disease of the central nervous system (CNS), with established autoimmune pathogenesis. The autoimmune response against the antigens of the CNS is initiated in the peripheral lymphoid tissues after immunization of AO rats with CNS antigens. Subsequently, limited infiltration of the CNS occurs, yet without clinical sequels. It has recently become increasingly appreciated that gut-associated lymphoid tissues (GALT) and gut microbiota play an important role in regulation and propagation of encephalitogenic immune response...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770136/cd3%C3%AE%C2%B5-expression-defines-functionally-distinct-subsets-of-v%C3%AE-1-t-cells-in-patients-with-human-immunodeficiency-virus-infection
#17
Pádraic J Dunne, Christina O Maher, Michael Freeley, Katie Dunne, Andreea Petrasca, Judy Orikiiriza, Margaret R Dunne, Derval Reidy, Siobhan O'Dea, Aisling Loy, Jim Woo, Aideen Long, Thomas R Rogers, Fiona Mulcahy, Derek G Doherty
Human γδ T cells expressing the Vδ1 T cell receptor (TCR) recognize self and microbial antigens and stress-inducible molecules in a major histocompatibility complex-unrestricted manner and are an important source of innate interleukin (IL)-17. Vδ1 T cells are expanded in the circulation and intestines of patients with human immunodeficiency virus (HIV) infection. In this study, we show that patients with HIV have elevated frequencies, but not absolute numbers, of circulating Vδ1 T cells compared to control subjects...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770132/differing-outcome-of-experimental-autoimmune-encephalitis-in-macrophage-neutrophil-and-t-cell-specific-gp130-deficient-mice
#18
Kristian Holz, Marco Prinz, Stefanie M Brendecke, Alexandra Hölscher, Fengyuan Deng, Hans-Willi Mitrücker, Stefan Rose-John, Christoph Hölscher
gp130 cytokines are differentially involved in regulating the T helper (H) 17-driven pathogenesis of experimental autoimmune encephalomyelitis (EAE), the animal model of human multiple sclerosis. Interleukin (IL)-6 directly promotes the development of TH17 cells through the gp130/IL-6R complex. By contrast, IL-27 has been shown to suppress a TH17 immune response by gp130/IL-27R-alpha (α) receptor ligation. The IL-27-dependent regulation of a TH17 development could be mediated on the level of CD4 T cells. However, because IL-27 also suppresses the secretion of the TH17-driving cytokines IL-6 and IL-12/23p40 in accessory cells, TH17 immune responses may also be controlled by IL-27 on the level of macrophages and/or neutrophils...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29768967/interleukin-1-receptor-1-deletion-in-focal-and-diffuse-experimental-traumatic-brain-injury-in-mice
#19
Joon Yong Chung, Nicolas Krapp, Limin Wu, Sevda Lule, Lauren McAllister, William Edmiston Iii, Samantha Martin, Emily Levy, Tanya Songtachalert, John Sherwood, Erin Buckley, Bharat Sanders, Saef Izzy, Suzanne Hickman, Shuzhen Guo, Josephine Lok, Joseph El Khoury, Eng Lo, David Kaplan, Michael Whalen
Important differences in the biology of focal and diffuse traumatic brain injury (TBI) subtypes may result in unique pathophysiological responses to shared molecular mechanisms. Interleukin-1 (IL-1) signaling has been tested as a potential therapeutic target in preclinical models of cerebral contusion and diffuse TBI, and in a phase II clinical trial, but no published studies have examined IL-1 signaling in an impact/acceleration closed head injury (CHI) model. We hypothesized that genetic deletion of IL-1 receptor-1 (IL-1R1 KO) would be beneficial in focal (contusion) and CHI in mice...
May 17, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29768427/differential-effects-of-tnf-%C3%AE-and-il-1%C3%AE-on-the-control-of-metal-metabolism-and-cadmium-induced-cell-death-in-chronic-inflammation
#20
Paola Bonaventura, Aline Lamboux, Francis Albarède, Pierre Miossec
OBJECTIVE: Interleukin-1-beta (IL-1β) and tumour necrosis factor-alpha (TNF-α) are both monocyte-derived cytokines. Both cytokines have been previously described to exert a role in rheumatoid arthritis (RA) pathogenesis synergizing with other pro-inflammatory mediators, such as interleukin-17 (IL-17) on target cells, for the perpetuation of the inflammatory response (e.g. IL-6 production). In the context of experimental RA, Cd addition has an anti-proliferative and anti-inflammatory effect when associated to IL-17/TNF-α stimulation, due to its accumulation in synoviocytes...
2018: PloS One
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