Il 18 Ifn Gamma
Mostrando 1-12 de 81 artigos, teses e dissertações.
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1. Granulocyte macrophage colony-stimulating factor enhances the modulatory effect of cytokines on monocyte-derived multinucleated giant cell formation and fungicidal activity against Paracoccidioides brasiliensis
Multinucleated giant cells (MGC) are cells present in characteristic granulomatous inflammation induced by intracellular infectious agents or foreign materials. The present study evaluated the modulatory effect of granulocyte macrophage colony-stimulating factor (GM-CSF) in association with other cytokines such as interferon-gamma (IFN-γ), tumour necrosis f
Mem. Inst. Oswaldo Cruz. Publicado em: 2011-09
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2. Polymorphism of the interleukin-18 and interferon-gamma in antiretroviral-associated lipodystrophy syndrome in HIV-1-infected patients. / Polimorfismo da interleucina-18 e do interferon gama na síndrome da lipodistrofia associada à terapia anti-retroviral em portadores do HIV-1
A introdução da terapia anti-retroviral de alta potência no tratamento da infecção pelo HIV reduziu significativamente as taxas de morbi-mortalidades relacionadas à imunodeficiência. Entretanto, o tratamento medicamentoso é acompanhado de vários efeitos colaterais, dentre eles, a síndrome da lipodistrofia (SL), caracterizada por alterações morfol
Publicado em: 2009
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3. Th-1 and Th-2 cytokine production in infants with virus-associated wheezing
Wheezing associated with respiratory viral infections in infancy is very common and results in high morbidity worldwide. The Th1/Th2 pattern of immune response in these patients remains unclear and previous studies have shown controversial results. The aim of the present study was to compare the type of Th1/Th2 cytokine response between infants with acute br
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-01
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4. Estudo da resposta imune a Actinobacillus actinomycetemcomitans e Porphyromonas gingivalis: produção de IL-10 e IFN-gama em cultura de células de sangue total e níveis séricos de IgG anti-Porphyromonas gingivalis em portadores de periodontite crônica.
Periodontitis is a multifactorial disease initiated and perpetuated by microbial factors that inhabit subgengival biofilm: the periodontopathogens. However, environmental and genetic factors may modify the disease and immune response deleterious effects are pointed as determinative to periodontal injury permanence. With the aim to contribute for understandin
Publicado em: 2005
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5. Interleukin-12 (IL-12) and IL-18 synergistically induce the fungicidal activity of murine peritoneal exudate cells against Cryptococcus neoformans through production of gamma interferon by natural killer cells.
We examined the ability of interleukin-12 (IL-12) and IL-18 to induce the production of gamma interferon (IFN-gamma) and nitric oxide (NO) by murine peritoneal exudate cells (PEC) and to stimulate the growth-inhibitory activity of these cells against Cryptococcus neoformans. PEC produced IFN-gamma and NO when stimulated with a combination of IL-12 and IL-18
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6. Interleukin 18 Contributes to Host Resistance and Gamma Interferon Production in Mice Infected with Virulent Salmonella typhimurium
Spleen and peritoneal macrophages obtained from innately resistant A/J mice released low levels of interleukin 18 (IL-18) upon infection with Salmonella typhimurium C5 RP4. Incubating the cells with recombinant gamma interferon (rIFN-γ) enhanced IL-18 production. A/J mice treated in vivo with anti-IL-18 antibodies showed impaired resistance to infection, wi
American Society for Microbiology.
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7. Differential Roles of Interleukin-18 (IL-18) and IL-12 for Induction of Gamma Interferon by Staphylococcal Cell Wall Components and Superantigens
The roles of endogenous cytokines induced by either intact staphylococcal microorganisms or staphylococcal exotoxins were examined using human whole-blood cultures. To accomplish this, interleukin-18 binding protein (IL-18BP) and tumor necrosis factor binding protein (TNFbp) were used to neutralize IL-18 and TNF, respectively, whereas an anti-IL-12 monoclona
American Society for Microbiology.
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8. Gamma Interferon (IFN-γ) and IFN-γ-Inducing Cytokines Interleukin-12 (IL-12) and IL-18 Do Not Augment Infection-Stimulated Bone Resorption In Vivo
Periapical granulomas are induced by bacterial infection of the dental pulp and result in destruction of the surrounding alveolar bone. In previous studies we have reported that the bone resorption in this model is primarily mediated by macrophage-expressed interleukin-1 (IL-1). The expression and activity of IL-1 is in turn modulated by a network of Th1 and
American Society for Microbiology.
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9. Enhanced Gamma Interferon Production through Activation of Vα14+ Natural Killer T Cells by α-Galactosylceramide in Interleukin-18-Deficient Mice with Systemic Cryptococcosis
We showed recently that activation of Vα14+ natural killer T cells (NKT cells) by α-galactosylceramide (α-GalCer) resulted in increased gamma interferon (IFN-γ) production and host resistance to intravenous infection with Cryptococcus neoformans. In other studies, interleukin-18 (IL-18) activated NKT cells in collaboration with IL-12, suggesting the poss
American Society for Microbiology.
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10. Immunomodulatory Role of Endogenous Interleukin-18 in Gamma Interferon-Mediated Resolution of Replicative Legionella pneumophila Lung Infection
The in vivo role of endogenous interleukin-18 (IL-18) in modulating gamma interferon (IFN-γ)-mediated resolution of replicative Legionella pneumophila lung infection was assessed using a murine model of Legionnaires' disease. Intratracheal inoculation of A/J mice with virulent bacteria (106 L. pneumophila organisms per mouse) resulted in induction of IL-18
American Society for Microbiology.
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11. Lactobacilli and Streptococci Induce Interleukin-12 (IL-12), IL-18, and Gamma Interferon Production in Human Peripheral Blood Mononuclear Cells
Human peripheral blood mononuclear cells (PBMC) were stimulated with three nonpathogenic Lactobacillus strains and with one pathogenic Streptococcus pyogenes strain, and cytokine gene expression and protein production were analyzed. All bacteria strongly induced interleukin-1β (IL-1β), IL-6, and tumor necrosis factor alpha mRNA expression and protein produ
American Society for Microbiology.
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12. Essential Role of Interleukin-12 (IL-12) and IL-18 for Gamma Interferon Production Induced by Listeriolysin O in Mouse Spleen Cells
The mechanism of gamma interferon (IFN-γ) production induced by listeriolysin O (LLO), a cytolytic virulence factor of Listeria monocytogenes, was analyzed with special reference to the involvement of macrophage-derived cytokines in spleen cells of mice. LLO purified from the culture supernatant of L. monocytogenes was capable of inducing a high level of IF
American Society for Microbiology.