Overlapping and unique signatures in the proteomic and transcriptomic responses of the nematode Caenorhabditis elegans toward pathogenic Bacillus thuringiensis.

Authors:
Wentao Yang, Katja Dierking, Daniela Esser, Andreas Tholey, Matthias Leippe, Philip Rosenstiel, Hinrich Schulenburg
Year of publication:
2015
Volume:
51
Issue:
1
Issn:
0145-305X
Journal title abbreviated:
DEV COMP IMMUNOL
Journal title long:
Developmental and comparative immunology : an international journal on immunological diversification
Impact factor:
3.620
Abstract:
Pathogen infection can activate multiple signaling cascades that ultimately alter the abundance of molecules in cells. This change can be measured both at the transcript and protein level. Studies analyzing the immune response at both levels are, however, rare. Here, we compare transcriptome and proteome data generated after infection of the nematode and model organism Caenorhabditis elegans with the Gram-positive pathogen Bacillus thuringiensis. Our analysis revealed a high overlap between abundance changes of corresponding transcripts and gene products, especially for genes encoding C-type lectin domain-containing proteins, indicating their particular role in worm immunity. We additionally identified a unique signature at the proteome level, suggesting that the C. elegans response to infection is shaped by changes beyond transcription. Such effects appear to be influenced by AMP-activated protein kinases (AMPKs), which may thus represent previously unknown regulators of C. elegans immune defense.