• Login
    View Item 
    •   UMB Digital Archive
    • School, Graduate
    • Theses and Dissertations All Schools
    • View Item
    •   UMB Digital Archive
    • School, Graduate
    • Theses and Dissertations All Schools
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UMB Digital ArchiveCommunitiesPublication DateAuthorsTitlesSubjectsThis CollectionPublication DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Statistics

    Display statistics

    “Interest-STING”: Inhibition of Innate Immune Signaling by Prostaglandin E2

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Mathena_umaryland_0373N_11212.pdf
    Size:
    1.049Mb
    Format:
    PDF
    Download
    Author
    Mathena, Reilley cc
    0000-0002-2049-8139
    Advisor
    Vogel, Stefanie N.
    Date
    2020
    Type
    dissertation
    
    Metadata
    Show full item record
    Abstract
    The cyclic GMP-AMP synthase-stimulator of interferon genes (cGAS-STING) pathway senses cytosolic double-stranded DNA from microbial or host cells. cGAS-STING activation elicits an inflammatory response, including production of type I interferons, through activation of TBK1 kinase and the transcription factor IRF3. Therefore, negative regulation of cGAS-STING activity would be predicted to prevent microbial-induced or autoimmune inflammatory damage. Based on prior work, we tested the hypothesis that the inflammatory product prostaglandin E2 (PGE2) acts on immune cells to control inflammation induced by cGAS-STING. STING pathway activating agents, 5,6 dimethylxanthenone-4-acetic acid (DMXAA) and cyclic guanosine monophosphate–adenosine monophosphate (cGAMP), were used to initiate STING signaling. Exogenous PGE2 suppressed DMXAA- and cGAMP-induced STING signaling in murine embryonic fibroblasts and primary murine macrophages. Cells treated with PGE2, followed by DMXAA or cGAMP, exhibited decreased activation of TBK1 and IRF3, and decreased inflammatory gene expression, arguing that PGE2 signaling may be a mechanism restricting cGAS-STING activation.
    Description
    Cellular & Molecular Biomedical Sciences
    University of Maryland, Baltimore
    M.S.
    Keyword
    cGAS-STING
    DMXAA
    Immunity--physiology
    Identifier to cite or link to this item
    http://hdl.handle.net/10713/14475
    Collections
    Theses and Dissertations School of Medicine
    Theses and Dissertations All Schools

    entitlement

     
    DSpace software (copyright © 2002 - 2021)  DuraSpace
    Quick Guide | Policies | Contact Us | UMB Health Sciences & Human Services Library
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.