While modern immunoassays provide sensitive and specific means for the quantitation of cytokines in biological fluids, heterophile antibodies are still a well-recognized cause of interference in the measurement of cytokines in these assays. We have developed a multiplexed fluorescent microsphere immunoassay for the simultaneous quantification of 10 cytokines in only 75 microl of serum. During t...

Interferon gamma (IFN-γ) release assays (IGRAs) detect Mycobacterium tuberculosis (Mtb) infection regardless of the active (ATB) or latent (LTBI) forms of tuberculosis (TB). In this study, Mtb-specific T cell response against region of deletion 1 (RD1) antigens were explored by a microbead multiplex assay performed in T-SPOT TB assay (T-SPOT) supernatants from 35 patients with ATB and 115 patie...

To investigate the immunomodulatory activities of phytocompounds for potential therapeutics, we devised an in vivo, transgenic, human cytokine gene promoter assay using defined epidermal skin cells as test tissue. Test compounds were topically applied to mouse skin before or after gene gun transfection, using a cytokine gene promoter-driven luciferase reporter. Croton oil, an inflammation induc...

Structural variants of α-galactosylceramide (αGC) that activate invariant natural killer T cells (iNKT cells) are being developed as potential immunomodulatory agents for a variety of applications. Identification of specific forms of these glycolipids that bias responses to favor production of proinflammatory vs anti-inflammatory cytokines is central to current efforts, but this goal has been h...

Helminth infections and their components have been shown to the potential modulate attenuate immune responses. The objective of this study was evaluate protective effects Clonorchis sinensis -derived protein (CSp) on ankylosing spondylitis (AS). Cytotoxicity CSp at different doses assessed by MTS flow cytometry before performing experiments. Peripheral blood mononuclear cells (PBMCs) synovial f...

In this study, we aimed to investigate the angiogenic cytokine profiles of hormone- and drug-refractory prostate carcinoma cell lines, PC-3 and DU-145. We also studied the effect of gossypol, a natural polyphenolic cotton-seed extract, on the angiogenic cytokine profile of these cell lines. XTT cell proliferation assay was used for the assessment of cytotoxicity. For apoptosis, both histone-DNA...

febrile collected from members of both groups and serum samples were prepared. interleukin 1β concentrations were measured using a commercial enzyme-linked immunosorbent assay (elisa) kit. we found that there was a difference in serum levels of interleukin 1β between fc and control  group but  it was not  significant. this result may be due to  the low number  of samples  or  the  result  of  i...

740 the known susceptibility of HIBECs to lymphocyte-mediated damage. This report describes the development and application of a flow-cytometric assay for examination of the effects of cytokine stimulation on lymphocyte adhesion to monolayer cultured endothelial and epithelial cells. This assay is potentially superior to conventional isotopic features as it is less dependent on the structure of...

Leptin, the product of the ob gene, regulates food intake, energy balance and lymphocyte functions. Receptor mutated animals have reduced production of proinflammatory cytokines. To analyze the direct effects of leptin (0.1 nM /1 mM) on cytokine production from colonic cells, we examined pro-inflammatory (IL-8, MCP-1, IL-6 and TNFalpha) and anti-inflammatory (IL-10) cytokine production in norma...