• myGriffith
    • Staff portal
    • Contact Us⌄
      • Future student enquiries 1800 677 728
      • Current student enquiries 1800 154 055
      • International enquiries +61 7 3735 6425
      • General enquiries 07 3735 7111
      • Online enquiries
      • Staff phonebook
    View Item 
    •   Home
    • Griffith Research Online
    • Journal articles
    • View Item
    • Home
    • Griffith Research Online
    • Journal articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

  • All of Griffith Research Online
    • Communities & Collections
    • Authors
    • By Issue Date
    • Titles
  • This Collection
    • Authors
    • By Issue Date
    • Titles
  • Statistics

  • Most Popular Items
  • Statistics by Country
  • Most Popular Authors
  • Support

  • Contact us
  • FAQs
  • Admin login

  • Login
  • MUC1 cell surface mucin is a critical element of the mucosal barrier to infection

    Thumbnail
    View/Open
    46439_1.pdf (1.608Mb)
    Author(s)
    McAuley, Julie L.
    Linden, Sara K.
    Png, Chin Wen
    McDonald, Rebecca
    Pennington, Helen L.
    Gendler, Sandra J.
    Florin, Timothy H.
    Hill, Geoff R.
    Korolik, Victoria
    McGuckin, Michael A.
    Griffith University Author(s)
    Korolik, Victoria
    McDonald, Rebecca
    Year published
    2007
    Metadata
    Show full item record
    Abstract
    Cell surface mucin glycoproteins are highly expressed by all mucosal tissues, yet their physiological role is currently unknown. We hypothesized that cell surface mucins protect mucosal cells from infection. A rapid progressive increase in gastrointestinal expression of mucin 1 (Muc1) cell surface mucin followed infection of mice with the bacterial pathogen Campylobacter jejuni. In the first week following oral infection, C. jejuni was detected in the systemic organs of the vast majority of Muc1–/– mice but never in Muc1+/+ mice. Although C. jejuni entered gastrointestinal epithelial cells of both Muc1–/– and Muc1+/+ mice, ...
    View more >
    Cell surface mucin glycoproteins are highly expressed by all mucosal tissues, yet their physiological role is currently unknown. We hypothesized that cell surface mucins protect mucosal cells from infection. A rapid progressive increase in gastrointestinal expression of mucin 1 (Muc1) cell surface mucin followed infection of mice with the bacterial pathogen Campylobacter jejuni. In the first week following oral infection, C. jejuni was detected in the systemic organs of the vast majority of Muc1–/– mice but never in Muc1+/+ mice. Although C. jejuni entered gastrointestinal epithelial cells of both Muc1–/– and Muc1+/+ mice, small intestinal damage as manifested by increased apoptosis and enucleated and shed villous epithelium was more common in Muc1–/– mice. Using radiation chimeras, we determined that prevention of systemic infection in wild-type mice was due exclusively to epithelial Muc1 rather than Muc1 on hematopoietic cells. Expression of MUC1-enhanced resistance to C. jejuni cytolethal distending toxin (CDT) in vitro and CDT null C. jejuni showed lower gastric colonization in Muc1–/– mice in vivo. We believe this is the first in vivo experimental study to demonstrate that cell surface mucins are a critical component of mucosal defence and that the study provides the foundation for exploration of their contribution to epithelial infectious and inflammatory diseases.
    View less >
    Journal Title
    Journal of Clinical Investigation
    Volume
    117
    Issue
    8
    Publisher URI
    http://www.jci.org/articles/view/JCI26705
    Copyright Statement
    © 2007 American Society for Clinical Investigation (ASCI). The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Medical and Health Sciences
    Publication URI
    http://hdl.handle.net/10072/17442
    Collection
    • Journal articles

    Footer

    Disclaimer

    • Privacy policy
    • Copyright matters
    • CRICOS Provider - 00233E
    • TEQSA: PRV12076

    Tagline

    • Gold Coast
    • Logan
    • Brisbane - Queensland, Australia
    First Peoples of Australia
    • Aboriginal
    • Torres Strait Islander