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Immunology and Infectious Disease Commons™
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Full-Text Articles in Immunology and Infectious Disease
The Role Of Bhlhe40 In Autoimmune Neuroinflammation And Mycobacterial Infection, Chih-Chung Lin
The Role Of Bhlhe40 In Autoimmune Neuroinflammation And Mycobacterial Infection, Chih-Chung Lin
Arts & Sciences Electronic Theses and Dissertations
The mammalian immune system is composed of innate and adaptive compartments, which cooperate with each other to maintain homeostasis and protect the host from the invasion by a variety of pathogens. The tight control of immune responses is extremely important for all individuals. Here, we discovered that the transcription factor basic helix-loop-helix family, member e40 (Bhlhe40) is a critical protein that regulates the autoimmune ("against self") and anti-microbial ("against non-self") responses of myeloid cells and T lymphocytes. Multiple sclerosis (MS) is a human neuroinflammatory disease in the central nervous system with an autoimmune etiology. We have reported that Bhlhe40 positively …
Role Of Mir-155 And Mir-146a In Mast Cell Function, Amina Abdul Qayum
Role Of Mir-155 And Mir-146a In Mast Cell Function, Amina Abdul Qayum
Theses and Dissertations
Mast cells are resident immune cells abundantly found in the tissue at the host-environment interface, where they play a critical role in inflammatory allergic responses. Mast cell responses may be regulated by the cytokine milieu at the site of inflammation. Recent studies have revealed microRNAs to be important in altering cytokine signaling in immune cells. Here, we demonstrate for the first time that IL-10 and IL-33 induce miR-155 and miR-146a, respectively, to alter mast cell functions. We report that IL-10 enhanced IgE induced activation of mast cells. IL-10 effects are dependent on Stat3 activation, which elicits miR-155 expression, resulting in …
Cytokine Expression, Cytoskeleton Organization, And Viability Of Sim-A9 Microglia Exposed To Staphylococcus Aureus-Derived Lipoteichoic Acid And Peptidoglycan, Erin Roberts
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In these experiments, SIM-A9 microglia were exposed to Staphylococcus aureus cell wall components lipoteichoic acid (LTA) and peptidoglycan (PGN) at a concentration of 5 ug/mL for six, twelve, eighteen, and twenty-four hours and the cytokine expression, cytoskeleton organization, and cell viability of the cells were observed. Following LTA and PGN exposure, TNF-a; secretion increased at each time interval and was highest observed at 24 hours. No significant IL-10 secretion was detected. Over the 24 hour period, cell viability and cytotoxicity of LTA and PGN treatment groups were not significantly different from the control, indicating the observed inflammatory cytokine response was …