RRC ID 6424
Author Tong A, Lynn G, Ngo V, Wong D, Moseley SL, Ewbank JJ, Goncharov A, Wu YC, Pujol N, Chisholm AD.
Title Negative regulation of Caenorhabditis elegans epidermal damage responses by death-associated protein kinase.
Journal Proc Natl Acad Sci U S A
Abstract Wounding of epidermal layers triggers multiple coordinated responses to damage. We show here that the Caenorhabditis elegans ortholog of the tumor suppressor death-associated protein kinase, dapk-1, acts as a previously undescribed negative regulator of barrier repair and innate immune responses to wounding. Loss of DAPK-1 function results in constitutive formation of scar-like structures in the cuticle, and up-regulation of innate immune responses to damage. Overexpression of DAPK-1 represses innate immune responses to needle wounding. Up-regulation of innate immune responses in dapk-1 requires the TIR-1/p38 signal transduction pathway; loss of function in this pathway synergizes with dapk-1 to drastically reduce adult lifespan. Our results reveal a previously undescribed function for the DAPK tumor suppressor family in regulation of epithelial damage responses.
Volume 106(5)
Pages 1457-61
Published 2009-2-3
DOI 10.1073/pnas.0809339106
PII 0809339106
PMID 19164535
PMC PMC2629440
MeSH Animals Apoptosis Regulatory Proteins / genetics Apoptosis Regulatory Proteins / metabolism* Caenorhabditis elegans / immunology* Calcium-Calmodulin-Dependent Protein Kinases / genetics Calcium-Calmodulin-Dependent Protein Kinases / metabolism* Death-Associated Protein Kinases Immunity, Innate Microscopy, Electron Mutation Signal Transduction
IF 9.412
Times Cited 50
WOS Category CELL BIOLOGY
Resource
C.elegans tm3036