Recovery from an acute infection in C. elegans requires the GATA transcription factor ELT-2.

Abstract:

:The mechanisms involved in the recognition of microbial pathogens and activation of the immune system have been extensively studied. However, the mechanisms involved in the recovery phase of an infection are incompletely characterized at both the cellular and physiological levels. Here, we establish a Caenorhabditis elegans-Salmonella enterica model of acute infection and antibiotic treatment for studying biological changes during the resolution phase of an infection. Using whole genome expression profiles of acutely infected animals, we found that genes that are markers of innate immunity are down-regulated upon recovery, while genes involved in xenobiotic detoxification, redox regulation, and cellular homeostasis are up-regulated. In silico analyses demonstrated that genes altered during recovery from infection were transcriptionally regulated by conserved transcription factors, including GATA/ELT-2, FOXO/DAF-16, and Nrf/SKN-1. Finally, we found that recovery from an acute bacterial infection is dependent on ELT-2 activity.

journal_name

PLoS Genet

journal_title

PLoS genetics

authors

Head B,Aballay A

doi

10.1371/journal.pgen.1004609

subject

Has Abstract

pub_date

2014-10-23 00:00:00

pages

e1004609

issue

10

eissn

1553-7390

issn

1553-7404

pii

PGENETICS-D-14-00123

journal_volume

10

pub_type

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