OBJECTIVE The interleukin 17 (IL-17) cytokine family is involved in a number of chronic inflammatory diseases. In spite of contradictory findings and a lack of causality in clinical studies, IL-17 inhibition for systemic lupus erythematosus (SLE) has regained attention as a potential therapeutic pathway, after demonstrating disease-modifying capabilities in ankylosing spondylitis. We investigat...

BACKGROUND Tumor growth in multiple myeloma (MM) is regulated by the cytokine networks which are produced by myeloma cells and the microenvironment of the bone marrow. Interleukin-17 (IL-17) is implicated in the increased angiogenesis in the bone marrow of MM. Recent studies reported elevated levels of interleukin 17A (IL-17A) in the sera of patients with advanced stages according to Durie-Salm...

Rheumatoid arthritis (RA) that affects the synovial knee joint causes swelling of membrane and tissue damage. Interleukin-17A (IL-17A) enzyme glycogen synthase kinase-3β (GSK3β) are involved in pathogenesis RA. The link between IL-17A, GSK3β, oxidative stress, profibrogenic marker alpha-smooth muscle actin (α-SMA) with without TDZD-8, GSK3β inhibitor has not been studied before. Consequent...

OBJECTIVE Rheumatoid arthritis (RA) is one systemic auto-immune disorder featured as chronic synovitis and can destruct joint cartilage. Fibroblast-like synoviocyte (FLS) secretes various factors affecting chondrocyte matrix and degradation. This study thus investigated the effect of interleukin-17A (IL-17A) on FLS and osteoclast. MATERIALS AND METHODS Type II collagen-induced arthritis (CIA)...

Abbreviations: RA: Rheumatoid Arthritis; CIA: Collagen-Induced Arthritis; IL-1β: Interleukin-1β; IL-6: Interleukin-6; IL-17A: Interleukin17A; IFN-γ: Interferon-γ; TNF-α: Tumor; Necrosis Factor-α; GM-CSF: Granulocyte-Macrophage Colony-Stimulating Factor; IL-8: Interleukin-8; MTX: Methotrexate; CSA: Cyclosporine; AZA: Azathioprine; LEF: Leflunomide; CFA: Complete Freund’s Adjuvant; ELISA: Enzyme ...

Interleukin (IL)-17A is expressed in the tumor microenvironment where it appears to contribute to tumor development, but its precise role in tumor immunity remains controversial. Here, we report mouse genetic evidence that IL-17A is critical for tumor growth. IL-17A-deficient mice exhibited reduced tumor growth, whereas systemic administration of recombinant mouse IL-17A promoted the growth of ...

Interleukin- (IL-) 17A, a pleiotropic mediator of inflammation and autoimmunity, potently stimulates bone-marrow neutrophil production. To explore IL-17A effects on eosinopoiesis, we cultured bone-marrow from wild-type mice, or mutants lacking inducible nitric oxide synthase (iNOS-/-), CD95 (lpr), IL-17RA, or IL-4, with IL-5, alone or associated with IL-17A. Synergisms between IL-17A-activated,...

BACKGROUND The levels and clinical relevance of Th17 cells and other interleukin-17-producing cells have not been analyzed in chronic lymphocytic leukemia. The objective of this study was to quantify blood and tissue levels of Th17 and other interleukin-17-producing cells in patients with this disease and correlate blood levels with clinical outcome. DESIGN AND METHODS Intracellular interleuk...

BACKGROUND Previous reports have described an association between autoimmunity and primary obsessive compulsive disorder. This study aimed to investigate any differences in the levels of T helper 1, 2, and 17 effector cell cytokines between obsessive compulsive disorder patients and the control group. METHODS The study included 34 children (23 males, 11 females), aged between 7 and 17 years, ...