Infection-induced expansion of a MHC class Ib-dependent intestinal intraepithelial γδ T cell subset

Adrian Davies, Sergio Lopez-Briones, Helena Ong, Cynthia O'Neil-Marshall, François A. Lemonnier, Kanneboyina Nagaraju, Eleanor S. Metcalf, Mark J. Soloski

Research output: Contribution to journalArticle

Abstract

Salmonella species invade the host via the intestinal epithelium. Hence, intestinal intraepithelial lymphocytes (iIELs) are potentially the first element of the immune system to encounter Salmonella during infection. In this study, we demonstrate, in a mouse model, the expansion of a CD8αβ +CD94-TCRγδ+ T cell subset within the iIEL population in response to oral infection with virulent or avirulent Salmonella. This population can be detected 3 days following infection, represents up to 15% of the TCRγδ- iIELs, and is dependent on the MHC class Ib molecule T23 (Qa-1). Qa-1 is expressed by intestinal epithelial cells and thus accessible for iIEL recognition. Such cells may play a role in the early immune response to Salmonella.

Original languageEnglish (US)
Pages (from-to)6828-6837
Number of pages10
JournalJournal of Immunology
Volume172
Issue number11
StatePublished - Jun 1 2004

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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    Davies, A., Lopez-Briones, S., Ong, H., O'Neil-Marshall, C., Lemonnier, F. A., Nagaraju, K., Metcalf, E. S., & Soloski, M. J. (2004). Infection-induced expansion of a MHC class Ib-dependent intestinal intraepithelial γδ T cell subset. Journal of Immunology, 172(11), 6828-6837.