Drosophila intestinal response to bacterial infection: activation of host defense and stem cell proliferation.

Details

Serval ID
serval:BIB_7D17827D6935
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Drosophila intestinal response to bacterial infection: activation of host defense and stem cell proliferation.
Journal
Cell Host and Microbe
Author(s)
Buchon N., Broderick N.A., Poidevin M., Pradervand S., Lemaitre B.
ISSN
1934-6069 (Electronic)
ISSN-L
1931-3128
Publication state
Published
Issued date
2009
Volume
5
Number
2
Pages
200-211
Language
english
Abstract
Although Drosophila systemic immunity is extensively studied, little is known about the fly's intestine-specific responses to bacterial infection. Global gene expression analysis of Drosophila intestinal tissue to oral infection with the Gram-negative bacterium Erwinia carotovora revealed that immune responses in the gut are regulated by the Imd and JAK-STAT pathways, but not the Toll pathway. Ingestion of bacteria had a dramatic impact on the physiology of the gut that included modulation of stress response and increased stem cell proliferation and epithelial renewal. Our data suggest that gut homeostasis is maintained through a balance between cell damage due to the collateral effects of bacteria killing and epithelial repair by stem cell division. The Drosophila gut provides a powerful model to study the integration of stress and immunity with pathways associated with stem cell control, and this study should prove to be a useful resource for such further studies.
Keywords
Animals, Drosophila/immunology, Drosophila/microbiology, Drosophila Proteins/immunology, Female, Gastrointestinal Tract/immunology, Gastrointestinal Tract/microbiology, Gene Expression Profiling, Gene Expression Regulation, Gram-Negative Bacterial Infections/immunology, Janus Kinases/immunology, Myogenic Regulatory Factors/immunology, Pectobacterium carotovorum/immunology, STAT Transcription Factors/immunology, Toll-Like Receptors/immunology, Transcription Factors/immunology
Pubmed
Web of science
Open Access
Yes
Create date
13/02/2014 15:42
Last modification date
20/08/2019 14:38
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