Salmonella effector proteins and host-cell responses

  • C. V. Srikanth
  • Regino Mercado-Lubo
  • Kelly Hallstrom
  • Beth A. McCormick
Multi-author review

DOI: 10.1007/s00018-011-0841-0

Cite this article as:
Srikanth, C.V., Mercado-Lubo, R., Hallstrom, K. et al. Cell. Mol. Life Sci. (2011) 68: 3687. doi:10.1007/s00018-011-0841-0

Abstract

Acute gastroenteritis caused by Salmonella enterica serovar typhimurium is a significant public health problem. This pathogen has very sophisticated molecular machinery encoded by the two pathogenicity islands, namely Salmonella Pathogenicity Island 1 and 2 (SPI-1 and SPI-2). Remarkably, both SPI-1 and SPI-2 are very tightly regulated in terms of timing of expression and spatial localization of the encoded effectors during the infection process within the host cell. This regulation is governed at several levels, including transcription and translation, and by post-translational modifications. In the context of a finely tuned regulatory system, we will highlight how these effector proteins co-opt host signaling pathways that control the ability of the organism to infect and survive within the host, as well as elicit host pro-inflammatory responses.

Keywords

Salmonella Type three secretion Invasion Inflammation 

Copyright information

© Springer Basel AG 2011

Authors and Affiliations

  • C. V. Srikanth
    • 1
  • Regino Mercado-Lubo
    • 1
  • Kelly Hallstrom
    • 1
  • Beth A. McCormick
    • 1
  1. 1.Department of Microbiology and Physiological SystemsThe University of Massachusetts Medical SchoolWorcesterUSA