Neuroimmune regulation of antimicrobial peptide expression by a noncanonical TGF-[beta] signaling pathway in Caenorhabditis elegans epidermis
After being infected by the fungus Drechmeria coniospora, Caenorhabditis elegans produces antimicrobial peptides in its epidermis, some regulated by a signaling cascade involving a p38 mitogen-activated protein kinase. Here we show that infection-induced expression of peptides of the Caenacin family...
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| Veröffentlicht in: | Nature immunology 2009-03, Vol.10 (3), p.249-256 |
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| creator | Zugasti, Olivier Ewbank, Jonathan J |
| description | After being infected by the fungus Drechmeria coniospora, Caenorhabditis elegans produces antimicrobial peptides in its epidermis, some regulated by a signaling cascade involving a p38 mitogen-activated protein kinase. Here we show that infection-induced expression of peptides of the Caenacin family occurred independently of the p38 pathway. The caenacin (cnc) genes enhanced survival after fungal infection, and neuronal expression of the transforming growth factor-beta homolog DBL-1 promoted cnc-2 expression in the epidermis in a dose-dependent paracrine way. Our results lead to a model in which antifungal defenses are coordinately regulated by a cell-autonomous p38 cascade and a distinct cytokine-like transforming growth factor-beta signal from the nervous system, each of which controls distinct sets of antimicrobial peptide-encoding genes in the epidermis. |
| doi_str_mv | 10.1038/ni.1700 |
| format | Article |
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| source | Nature; Alma/SFX Local Collection |
| subjects | Caenorhabditis elegans Drechmeria coniospora Epidermis Peptides |
| title | Neuroimmune regulation of antimicrobial peptide expression by a noncanonical TGF-[beta] signaling pathway in Caenorhabditis elegans epidermis |
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