RRC ID 6419
Author Shivers RP, Kooistra T, Chu SW, Pagano DJ, Kim DH.
Title Tissue-specific activities of an immune signaling module regulate physiological responses to pathogenic and nutritional bacteria in C. elegans.
Journal Cell Host Microbe
Abstract Microbes represent both an essential source of nutrition and a potential source of lethal infection to the nematode Caenorhabditis elegans. Immunity in C. elegans requires a signaling module comprised of orthologs of the mammalian Toll-interleukin-1 receptor (TIR) domain protein SARM, the mitogen-activated protein kinase kinase kinase (MAPKKK) ASK1, and MAPKK MKK3, which activates p38 MAPK. We determined that the SARM-ASK1-MKK3 module has dual tissue-specific roles in the C. elegans response to pathogens--in the cell-autonomous regulation of innate immunity and the neuroendocrine regulation of serotonin-dependent aversive behavior. SARM-ASK1-MKK3 signaling in the sensory nervous system also regulates egg-laying behavior that is dependent on bacteria provided as a nutrient source. Our data demonstrate that these physiological responses to bacteria share a common mechanism of signaling through the SARM-ASK1-MKK3 module and suggest the co-option of ancestral immune signaling pathways in the evolution of physiological responses to microbial pathogens and nutrients.
Volume 6(4)
Pages 321-30
Published 2009-10-22
DOI 10.1016/j.chom.2009.09.001
PII S1931-3128(09)00310-2
PMID 19837372
PMC PMC2772662
MeSH Animals Bacteria / immunology* Caenorhabditis elegans / immunology* Caenorhabditis elegans / microbiology* Caenorhabditis elegans Proteins / immunology Cytoskeletal Proteins / immunology Immunity, Innate MAP Kinase Kinase 3 / immunology MAP Kinase Kinase Kinase 5 / immunology Nerve Tissue / physiology Receptors, G-Protein-Coupled Signal Transduction*
IF 15.923
Times Cited 84
WOS Category PARASITOLOGY MICROBIOLOGY VIROLOGY
Resource
C.elegans tm3036 tm1111