Format

Send to

Choose Destination
See comment in PubMed Commons below
Trends Mol Med. 2011 Oct;17(10):573-83. doi: 10.1016/j.molmed.2011.05.009. Epub 2011 Jul 15.

Intracellular Rickettsiales: Insights into manipulators of eukaryotic cells.

Author information

1
Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes CNRS-IRD UMR6236-198, Université de la Méditerranée, Faculté de Médecine, 27 bd Jean Moulin, 13385 Marseille cedex 5, France.

Abstract

The order Rickettsiales comprises obligate intracellular bacteria that are the ancestors of modern eukaryotes. These bacteria infect various vectors and hosts, with some species being pathogenic to man. Rickettsiales have small, degraded genomes and provide a paradigm for increased pathogenicity despite gene loss; significant levels of genetic exchange occur between bacteria that infect the same host and with the eukaryotic hosts themselves. Crosstalk between host and bacteria appears to be mediated by a Type IV secretion system and proteins containing eukaryotic-like repeat motifs. Rickettsiales also manipulate host reproduction and induce host resistance to viruses. Manipulation of its host by Rickettsiales has long been misunderstood because of technical difficulties, but recent advances in understanding bacterial-eukaryotes interactions have been made and are reviewed here.

PMID:
21763202
DOI:
10.1016/j.molmed.2011.05.009
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center