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Interleukin-15

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https://www.readbyqxmd.com/read/28099143/desirable-cytolytic-immune-effector-cell-recruitment-by-interleukin-15-dendritic-cells
#1
Heleen H Van Acker, Ottavio Beretta, Sébastien Anguille, Lien De Caluwé, Angela Papagna, Johan M Van den Bergh, Yannick Willemen, Herman Goossens, Zwi N Berneman, Viggo F Van Tendeloo, Evelien L Smits, Maria Foti, Eva Lion
Success of dendritic cell (DC) therapy in treating malignancies is depending on the DC capacity to attract immune effector cells, considering their reciprocal crosstalk is partially regulated by cell-contact-dependent mechanisms. Although critical for therapeutic efficacy, immune cell recruitment is a largely overlooked aspect regarding optimization of DC vaccination. In this paper we have made a head-to-head comparison of interleukin (IL)-15-cultured DCs and conventional IL-4-cultured DCs with regard to their proficiency in the recruitment of (innate) immune effector cells...
January 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28093832/il-15-deficient-mice-develop-enhanced-allergic-responses-to-airway-allergen-exposure
#2
Clinton B Mathias, Craig M Schramm, Linda A Guernsey, Carol A Wu, Stephanie H Polukort, Jeffrey Rovatti, Jennifer Ser-Dolansky, Eric Secor, Sallie S Schneider, Roger S Thrall, Hector L Aguila
BACKGROUND: Interleukin-15 is a pleiotropic cytokine that is critical for the development and survival of multiple hematopoietic lineages. Mice lacking IL-15 have selective defects in populations of several pro-allergic immune cells including natural killer (NK) cells, NKT cells, and memory CD8(+) T cells. We therefore hypothesized that IL-15(-/-) mice will have reduced inflammatory responses during the development of allergic airway disease (AAD). OBJECTIVE: To determine whether IL-15(-/-) mice have attenuated allergic responses in a mouse model of AAD...
January 17, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28031340/il-15-enables-septic-shock-by-maintaining-nk-cell-integrity-and-function
#3
Yin Guo, Liming Luan, Naeem K Patil, Jingbin Wang, Julia K Bohannon, Whitney Rabacal, Benjamin A Fensterheim, Antonio Hernandez, Edward R Sherwood
Interleukin 15 is essential for the development and differentiation of NK and memory CD8(+) (mCD8(+)) T cells. Our laboratory previously showed that NK and CD8(+) T lymphocytes facilitate the pathobiology of septic shock. However, factors that regulate NK and CD8(+) T lymphocyte functions during sepsis are not well characterized. We hypothesized that IL-15 promotes the pathogenesis of sepsis by maintaining NK and mCD8(+) T cell integrity. To test our hypothesis, the pathogenesis of sepsis was assessed in IL-15-deficient (IL-15 knockout, KO) mice...
December 28, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28011147/interleukin-15-is-associated-with-severity-and-mortality-in-stevens-johnson-syndrome-toxic-epidermal-necrolysis
#4
Shih-Chi Su, Maja Mockenhaupt, Pierre Wolkenstein, Ariane Dunant, Sabine Le Gouvello, Chun-Bing Chen, Olivier Chosidow, Laurence Valeyrie-Allanore, Teresa Bellon, Peggy Sekula, Chuang-Wei Wang, Martin Schumacher, Sylvia H Kardaun, Shuen-Iu Hung, Jean-Claude Roujeau, Wen-Hung Chung
Early diagnosis and prognosis monitoring for Stevens-Johnson syndrome (SJS)/ toxic epidermal necrolysis (TEN) still remain a challenge. This study aims to explore any cytokine/chemokine with prognostic potential in SJS/TEN. Through screening a panel of 28 serological factors, IL-6, IL-8, IL-15, TNF-α, and granulysin were upregulated in SJS/TEN patients and selected for the further validation in total 155 SJS/TEN patients, including 77 from Taiwan and 78 from RegiSCAR (the Registry of Severe Cutaneous Adverse Reactions)...
December 20, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27994144/astrocyte-derived-interleukin-15-exacerbates-ischemic-brain-injury-via-propagation-of-cellular-immunity
#5
Minshu Li, Zhiguo Li, Yang Yao, Wei-Na Jin, Kristofer Wood, Qiang Liu, Fu-Dong Shi, Junwei Hao
Astrocytes are believed to bridge interactions between infiltrating lymphocytes and neurons during brain ischemia, but the mechanisms for this action are poorly understood. Here we found that interleukin-15 (IL-15) is dramatically up-regulated in astrocytes of postmortem brain tissues from patients with ischemic stroke and in a mouse model of transient focal brain ischemia. We generated a glial fibrillary acidic protein (GFAP) promoter-controlled IL-15-expressing transgenic mouse (GFAP-IL-15(tg)) line and found enlarged brain infarcts, exacerbated neurodeficits after the induction of brain ischemia...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27910764/metabolic-regulation-of-natural-killer-cell-ifn-%C3%AE-production
#6
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/27881938/are-interleukin-15-and-22-a-new-pathogenic-factor-in-pustular-palmoplantar-psoriasis
#7
Aleksandra Lesiak, Igor Bednarski, Marta Pałczyńska, Ewelina Kumiszcza, Marzena Kraska-Gacka, Anna Woźniacka, Joanna Narbutt
INTRODUCTION: Pustular palmoplantar psoriasis (PPP) is a rare type of psoriasis affecting mainly distal parts of the limbs. Despite numerous theories about etiology of PPP, the pathogenesis still remains unclear. Recent data indicate that interleukin (IL)-15, IL-17 and IL-22 enhance a proinflammatory response in certain skin inflammatory diseases such as psoriasis and atopic dermatitis. There is also evidence that anti-endomysial (anti-EMA) and anti-gliadin (AGA) antibodies are engaged in PPP development...
October 2016: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/27880829/interleukin-15-il-15-strongly-correlates-with-increasing-hiv-1-viremia-and-markers-of-inflammation
#8
Sanjay Swaminathan, Ju Qiu, Adam W Rupert, Zonghui Hu, Jeanette Higgins, Robin L Dewar, Randy Stevens, Catherine A Rehm, Julia A Metcalf, Brad T Sherman, Michael W Baseler, H Clifford Lane, Tomozumi Imamichi
OBJECTIVE: IL-15 has been postulated to play an important role in HIV-1 infection, yet there are conflicting reports regarding its expression levels in these patients. We sought to measure the level of IL-15 in a large, well characterised cohort of HIV-1 infected patients and correlate this with well known markers of inflammation, including CRP, D-dimer, sCD163 and sCD14. DESIGN AND METHODS: IL-15 levels were measured in 501 people (460 patients with HIV-1 infection and 41 uninfected controls)...
2016: PloS One
https://www.readbyqxmd.com/read/27847409/effect-of-interleukin-15-on-cd11b-cd54-and-cd62l-expression-on-natural-killer-cell-and-natural-killer-t-like-cells-in-systemic-lupus-erythematosus
#9
Syh-Jae Lin, Ji-Yih Chen, Ming-Ling Kuo, Hsiu-Shan Hsiao, Pei-Tzu Lee, Jing-Long Huang
Adhesion molecules may play an important role in systemic lupus erythematosus (SLE) pathogenesis. We investigated the effect of interleukin- (IL-) 15 on CD11b, CD54, and CD62L expression on natural killer (NK) cells, T cells, and CD56(+)CD3(+) NKT-like cells from SLE subjects and healthy controls. SLE patients had decreased circulating NK cells and NKT-like cells compared to controls. NK cells from SLE patients showed higher CD11b and CD62L expression compared to controls. IL-15 enhanced CD11b and CD54 but downregulated CD62L expression on NK cells from SLE patients...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27837366/hippocampus-specific-deficiency-of-il-15r%C3%AE-contributes-to-greater-anxiety-like-behaviors-in-mice
#10
Linda Nguyen, Joseph Bohlen, Janelle Stricker, Ikttesh Chahal, Hanting Zhang, Emidio E Pistilli
A hippocampus-specific IL15RαKO mouse (hipIl15ra (fl/fl) /Cre(+)) was generated to test the hypothesis that the targeted deletion of interleukin-15 receptor alpha (IL-15Rα) in the hippocampus contributes to altered behavior, including greater levels of anxiety and ambulatory activity. Using Cre-loxP, exons 2 and 3 of the IL-15Rα gene were excised within the hippocampus, while normal expression was maintained within the rest of the brain. In the open field test (OFT), hipIl15ra (fl/fl) /Cre(+) spent a greater amount of time in the periphery and less time in the central portions of the chamber, and there was also a noticeable trend for decreased rearing activity; these behaviors are consistent with greater levels of anxiety-like behavior in these mice...
November 11, 2016: Metabolic Brain Disease
https://www.readbyqxmd.com/read/27830278/molecular-communication-from-skeletal-muscle-to-bone-a-review-for-muscle-derived-myokines-regulating-bone-metabolism
#11
REVIEW
Baosheng Guo, Zong-Kang Zhang, Chao Liang, Jie Li, Jin Liu, Aiping Lu, Bao-Ting Zhang, Ge Zhang
Besides the mechanical loading-dependent paradigm, skeletal muscle also serves as an endocrine organ capable of secreting cytokines to modulate bone metabolism. In this review, we focused on reviewing the myokines involved in communication from skeletal muscle to bone, i.e. (1) myostatin and myostatin-binding proteins including follistatin and decorin, (2) interleukins including interleukin-6 (IL-6), interleukin-7 (IL-7) and interleukin-15 (IL-15), (3) insulin-like growth factor 1 (IGF-1) and its binding proteins, (4) other myokines including PGC-1α-irisin system and osteoglycin (OGN)...
November 9, 2016: Calcified Tissue International
https://www.readbyqxmd.com/read/27824945/correction-deficiency-of-interleukin-15-confers-resistance-to-obesity-by-diminishing-inflammation-and-enhancing-the-thermogenic-function-of-adipose-tissues
#12
Gregory Lacraz, Volatiana Rakotoarivelo, Sebastien M Labbé, Mathieu Vernier, Christophe Noll, Marian Mayhue, Jana Stankova, Adel Schwertani, Guillaume Grenier, André Carpentier, Denis Richard, Gerardo Ferbeyre, Julie Fradette, Marek Rola-Pleszczynski, Alfredo Menendez, Marie-France Langlois, Subburaj Ilangumaran, Sheela Ramanathan
[This corrects the article DOI: 10.1371/journal.pone.0162995.].
2016: PloS One
https://www.readbyqxmd.com/read/27776794/oncolytic-influenza-a-virus-expressing-interleukin-15-decreases-tumor-growth-in%C3%A2-vivo
#13
Karin Hock, Johannes Laengle, Irina Kuznetsova, Andrej Egorov, Balazs Hegedus, Balazs Dome, Thomas Wekerle, Monika Sachet, Michael Bergmann
BACKGROUND: Interleukin-15 has become a promising molecule in the context of eliciting an effective, antitumor immune response because it is able to stimulate cells of the innate and adaptive immune system. METHODS: We generated an interleukin-15-expressing oncolytic influenza A virus for the treatment of an established murine tumor model. RESULTS: Our oncolytic influenza A virus produced large amounts of interleukin-15 and induced proliferation and activation of human T cells in vitro...
October 21, 2016: Surgery
https://www.readbyqxmd.com/read/27738421/il-15-mediates-mitochondrial-activity-through-a-ppar%C3%AE-dependent-ppar%C3%AE-independent-mechanism-in-skeletal-muscle-cells
#14
Shantaé M Thornton, James E Krolopp, Marcia J Abbott
Molecular mediators of metabolic processes, to increase energy expenditure, have become a focus for therapies of obesity. The discovery of cytokines secreted from the skeletal muscle (SKM), termed "myokines," has garnered attention due to their positive effects on metabolic processes. Interleukin-15 (IL-15) is a myokine that has numerous positive metabolic effects and is linked to the PPAR family of mitochondrial regulators. Here, we aimed to determine the importance of PPARα and/or PPARδ as targets of IL-15 signaling...
2016: PPAR Research
https://www.readbyqxmd.com/read/27686372/interleukin-15-enhances-the-proliferation-stimulatory-phenotype-and-antitumor-effector-functions-of-human-gamma-delta-t-cells
#15
Heleen H Van Acker, Sébastien Anguille, Yannick Willemen, Johan M Van den Bergh, Zwi N Berneman, Eva Lion, Evelien L Smits, Viggo F Van Tendeloo
BACKGROUND: Adoptive immunotherapy is gaining momentum to fight malignancies, whereby γδ T cells have received recent attention as an alternative cell source as to natural killer cells and αβ T cells. The advent of γδ T cells is largely due to their ability to recognize and target tumor cells using both innate characteristic and T cell receptor (TCR)-mediated mechanisms, their capacity to enhance the generation of antigen-specific T cell responses, and their potential to be used in an autologous or allogeneic setting...
September 29, 2016: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27684068/deficiency-of-interleukin-15-confers-resistance-to-obesity-by-diminishing-inflammation-and-enhancing-the-thermogenic-function-of-adipose-tissues
#16
Gregory Lacraz, Volatiana Rakotoarivelo, Sebastien M Labbé, Mathieu Vernier, Christophe Noll, Marian Mayhue, Jana Stankova, Adel Schwertani, Guillaume Grenier, André Carpentier, Denis Richard, Gerardo Ferbeyre, Julie Fradette, Marek Rola-Pleszczynski, Alfredo Menendez, Marie-France Langlois, Subburaj Ilangumaran, Sheela Ramanathan
OBJECTIVE: IL-15 is an inflammatory cytokine secreted by many cell types. IL-15 is also produced during physical exercise by skeletal muscle and has been reported to reduce weight gain in mice. Contrarily, our findings on IL-15 knockout (KO) mice indicate that IL-15 promotes obesity. The aim of this study is to investigate the mechanisms underlying the pro-obesity role of IL-15 in adipose tissues. METHODS: Control and IL-15 KO mice were maintained on high fat diet (HFD) or normal control diet...
2016: PloS One
https://www.readbyqxmd.com/read/27683210/a-novel-self-cleavable-tag-zbasic-%C3%A2-i-cm-and-its-application-in-the-soluble-expression-of-recombinant-human-interleukin-15-in-escherichia-coli
#17
Siwei Shi, Huanhuan Chen, Hua Jiang, Yueqing Xie, Lei Zhang, Ninghuan Li, Chencen Zhu, Junsheng Chen, Han Luo, Jiaxian Wang, Lei Feng, Huili Lu, Jianwei Zhu
Soluble expression of recombinant therapeutic proteins in Escherichia coli (E. coli) has been a challenging task in biopharmaceutical development. In this study, a novel self-cleavable tag Zbasic-intein has been constructed for the soluble expression and purification of a recombinant cytokine, human interleukin-15 (IL-15). We screened several solubilizing tags fused with the self-cleavable Mycobacterium tuberculosis recA mini-intein ∆I-CM and demonstrated that Zbasic tag can significantly improve the solubility of the product with correspondent to the intein activity...
February 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27676149/acute-effect-of-cluster-and-traditional-set-configurations-on-myokines-associated-with-hypertrophy
#18
J M Oliver, S C Jenke, J D Mata, A Kreutzer, M T Jones
This study compared the acute cytokine response, and kinetic and kinematic profile following back squat exercise in resistance-trained men. In a randomized, cross-over design, 10 resistance-trained men (27±4 y, 1.80±0.07 m, 82.8±6.7 kg, 16.3±3.5% fat) performed the back squat exercise using traditional and cluster set configurations. Kinetic and kinematic data were sampled throughout each condition. Venous blood was sampled prior, immediately post, 30 min, 60 min, 24 h, and 48 h post-exercise for plasma interleukin-6 (IL-6) and interleukin-15 (IL-15)...
December 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27671547/active-immunization-with-human-interleukin-15-induces-neutralizing-antibodies-in-non-human-primates
#19
Yunier Rodríguez-Álvarez, Yanelys Morera-Díaz, Haydee Gerónimo-Pérez, Jorge Castro-Velazco, Rafael Martínez-Castillo, Pedro Puente-Pérez, Vladimir Besada-Pérez, Eugenio Hardy-Rando, Araceli Chico-Capote, Klaudia Martínez-Cordovez, Alicia Santos-Savio
BACKGROUND: Interleukin-15 is an immunostimulatory cytokine overexpressed in several autoimmune and inflammatory diseases such as Rheumatoid Arthritis, psoriasis and ulcerative colitis; thus, inhibition of IL-15-induced signaling could be clinically beneficial in these disorders. Our approach to neutralize IL-15 consisted in active immunization with structurally modified human IL-15 (mhIL-15) with the aim to induce neutralizing antibodies against native IL-15. In the present study, we characterized the antibody response in Macaca fascicularis, non-human primates that were immunized with a vaccine candidate containing mhIL-15 in Aluminum hydroxide (Alum), Montanide and Incomplete Freund's Adjuvant...
September 26, 2016: BMC Immunology
https://www.readbyqxmd.com/read/27648810/interleukin-15-promotes-intestinal-dysbiosis-with-butyrate-deficiency-associated-with-increased-susceptibility-to-colitis
#20
Marlies Meisel, Toufic Mayassi, Hannah Fehlner-Peach, Jason C Koval, Sarah L O'Brien, Reinhard Hinterleitner, Kathryn Lesko, Sangman Kim, Romain Bouziat, Li Chen, Christopher R Weber, Sarkis K Mazmanian, Bana Jabri, Dionysios A Antonopoulos
Dysbiosis resulting in gut-microbiome alterations with reduced butyrate production are thought to disrupt intestinal immune homeostasis and promote complex immune disorders. However, whether and how dysbiosis develops before the onset of overt pathology remains poorly defined. Interleukin-15 (IL-15) is upregulated in distressed tissue and its overexpression is thought to predispose susceptible individuals to and have a role in the pathogenesis of celiac disease and inflammatory bowel disease (IBD). Although the immunological roles of IL-15 have been largely studied, its potential impact on the microbiota remains unexplored...
January 2017: ISME Journal
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