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© Research
Publication : FEBS letters

Tracking bacterial pathogens with genetically-encoded reporters

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in FEBS letters - 22 May 2014

Campbell-Valois FX, Sansonetti PJ

Link to Pubmed [PMID] – 24859085

FEBS Lett. 2014 Aug;588(15):2428-36

During the infectious process, bacterial pathogens are subject to changes in environmental conditions such as nutrient availability, immune response challenges, bacterial density and physical contacts with targeted host cells. These conditions occur in the colonized organs, in diverse regions within infected tissues or even at the subcellular level for intracellular pathogens. Integration of environmental cues leads to measurable biological responses in the bacterium required for adaptation. Recent progress in technology enabled the study of bacterial adaptation in situ using genetically encoded reporters that allow single cell analysis or whole body imaging based on fluorescent proteins, alternative fluorescent assays or luciferases. This review presents a historical perspective and technical details on the methods used to develop transcriptional reporters, protein-protein interaction assays and secretion detection assays to study pathogenic bacteria adaptation in situ. Finally, studies published in the last 5 years on gram positive and gram negative bacterial adaptation to the host during infection are discussed. However, the methods described here could easily be extended to study complex microbial communities within host tissue and in the environment.

http://www.ncbi.nlm.nih.gov/pubmed/24859085