A murine intraperitoneal infection model reveals that host resistance to Campylobacter jejuni is Nramp1 dependent

Microbes Infect. 2008 Jul;10(8):922-7. doi: 10.1016/j.micinf.2008.05.001. Epub 2008 May 14.

Abstract

We tested the hypothesis that host resistance to Campylobacter jejuni is Nramp1 dependent. Following intraperitoneal (IP) inoculation of Nramp1+/+ and isogenic Nramp1-deficient (Nramp1-/-) mice C. jejuni primarily associated with mac1-positive cells in liver tissue. A significant reduction of C. jejuni was observed in Nramp1+/+ mice 4 days post-infection (PI) (liver) and 8 days PI cecum-colon. In contrast, Nramp1-/- mice showed no significant reduction of C. jejuni and instead had a chronic inflammatory response and significant histopathological lesions 30 days PI. Differential cytokine profiles were observed in C. jejuni infected Nramp1+/+ and Nramp1-/- primary dendritic cells. Taken together these data indicate that Nramp1 is critical for host resistance to C. jejuni.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Campylobacter jejuni / immunology*
  • Cation Transport Proteins / immunology*
  • Cecum / microbiology
  • Colony Count, Microbial
  • Female
  • Immunity, Innate*
  • Inflammation / pathology
  • Liver / microbiology
  • Liver / pathology
  • Lymph Nodes / microbiology
  • Mice
  • Mice, Knockout
  • Spleen / microbiology

Substances

  • Cation Transport Proteins
  • natural resistance-associated macrophage protein 1