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Salmonella pathogenicity island 2.

M Hensel1

  • 1Lehrstuhl Bakteriologie, Max von Pettenkofer-Institut, Ludwig-Maximilians-Universität München, Germany. hensel@m3401.mpk.med.uni-muenchen.de

Molecular Microbiology
|June 9, 2000
PubMed
Summary
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Salmonella enterica causes systemic infections like typhoid fever. The Salmonella Pathogenicity Island 2 (SPI2) type III secretion system is crucial for intracellular pathogenesis and host cell modification during infection.

Area of Science:

  • Microbiology
  • Molecular Biology
  • Infectious Diseases

Background:

  • Systemic infections caused by Salmonella enterica, including typhoid fever, pose a significant global health risk.
  • The Salmonella Pathogenicity Island 2 (SPI2) type III secretion system is increasingly recognized for its critical role in bacterial pathogenesis.

Purpose of the Study:

  • To review the identification, molecular genetics, evolution, and gene expression regulation of SPI2.
  • To discuss the function of SPI2 in intracellular Salmonella pathogenesis and host cell modification.
  • To explore the role of SPI2 in the pathogenesis of salmonellosis.

Main Methods:

  • Literature review of studies on Salmonella Pathogenicity Island 2 (SPI2).
  • Analysis of molecular genetics, evolution, and gene expression regulation of SPI2.

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  • Examination of recent findings on SPI2's role in host cell modification.

    • Main Results:

    • SPI2 is central to Salmonella enterica's ability to cause systemic infections.
    • Intracellular Salmonella utilizes SPI2 to actively alter host cell functions.
    • SPI2 plays a key role in the pathogenesis of salmonellosis.

    Conclusions:

    • The SPI2 type III secretion system is essential for Salmonella enterica systemic infections.
    • Understanding SPI2 function provides insights into bacterial pathogenesis and host-pathogen interactions.
    • Further research into SPI2 mechanisms can inform therapeutic strategies against Salmonella infections.