期刊
JOURNAL OF INNATE IMMUNITY
卷 6, 期 2, 页码 192-204出版社
KARGER
DOI: 10.1159/000353734
关键词
Basement membrane; Coagulation; Hemocyte; Insect immunity; Nematodes; Recognition molecule; Thioester-containing proteins
类别
资金
- Swedish Research Council
- STINT (Swedish Foundation for International Cooperation in Research and Higher Education)
- Knut and Alice Wallenberg Foundation
- Swedish Cancer Foundation
- European Social Fund
- state budget of the Czech Republic
- European Union Seventh Framework Program (FP7) [316304]
Heterorhabditis bacteriophora is an entomopathogenic nematode (EPN) which infects its host by accessing the hemolymph where it releases endosymbiotic bacteria of the species Photorhabdus luminescens. We performed a genome-wide transcriptional analysis of the Drosophila response to EPN infection at the time point at which the nematodes reached the hemolymph either via the cuticle or the gut and the bacteria had started to multiply. Many of the most strongly induced genes have been implicated in immune responses in other infection models. Mapping of the complete set of differentially regulated genes showed the hallmarks of a wound response, but also identified a large fraction of EPN-specific transcripts. Several genes identified by transcriptome profiling or their homologues play protective roles during nematode infections. Genes that positively contribute to controlling nematobacterial infections encode: a homolog of thioester-containing complement protein 3, a basement membrane component (glutactin), a recognition protein (GNBP-like 3) and possibly several small peptides. Of note is that several of these genes have not previously been implicated in immune responses. (C) 2013 S. Karger AG, Basel
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