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The human pathogen Chlamydia pneumoniae has been implicated in chronic inflammatory diseases including type 2 diabetes. Therefore, we designed a study to evaluate pancreatic beta cells and mast cells during chlamydial infection. Our study revealed that C. pneumoniae infected mast cells significantly (p<0.005) decreased beta cell ATP and insulin production, in contrast to uninfected mast cells co-cultured...
Interleukin-15 (IL-15) contributes to natural killer cell development and immune regulation. However, IL-15 and interferon-gamma (IFN-γ) production are significantly reduced during progression to AIDS. We have previously reported that HIV infected chimpanzees (Pan troglodytes) express CD3−CD8+ IFN-γ+ natural killer (NK) cells with an inverse correlation to plasma HIV viral load. To expand on our initial...
Mast cells have classically been implicated in the triggering of allergic and anaphylactic reactions. However, recent findings have elucidated the ability of these cells to selectively release a variety of cytokines leading to bacterial clearance through neutrophil and dendritic cell mobilization, and suggest an important role in innate host defenses. Our laboratory has established a primary bone...
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