PUBLICATION
Innate immunity. A Spaetzle-like role for nerve growth factor ? in vertebrate immunity to Staphylococcus aureus
- Authors
- Hepburn, L., Prajsnar, T.K., Klapholz, C., Moreno, P., Loynes, C.A., Ogryzko, N.V., Brown, K., Schiebler, M., Hegyi, K., Antrobus, R., Hammond, K.L., Connolly, J., Ochoa, B., Bryant, C., Otto, M., Surewaard, B., Seneviratne, S.L., Grogono, D.M., Cachat, J., Ny, T., Kaser, A., Török, M.E., Peacock, S.J., Holden, M., Blundell, T., Wang, L., Ligoxygakis, P., Minichiello, L., Woods, C.G., Foster, S.J., Renshaw, S.A., Floto, R.A.
- ID
- ZDB-PUB-141102-5
- Date
- 2014
- Source
- Science (New York, N.Y.) 346: 641-6 (Journal)
- Registered Authors
- Hammond, Katherine L., Loynes, Catherine, Prajsnar, Thomasz, Renshaw, Steve A.
- Keywords
- none
- MeSH Terms
-
- Humans
- Evolution, Molecular
- Nerve Growth Factor/genetics
- Nerve Growth Factor/immunology*
- Zebrafish/genetics
- PubMed
- 25359976 Full text @ Science
Abstract
Many key components of innate immunity to infection are shared between Drosophila and humans. However, the fly Toll ligand Spaetzle is not thought to have a vertebrate equivalent. We have found that the structurally related cystine-knot protein, nerve growth factor β (NGFβ), plays an unexpected Spaetzle-like role in immunity to Staphylococcus aureus infection in chordates. Deleterious mutations of either human NGFβ or its high-affinity receptor tropomyosin-related kinase receptor A (TRKA) were associated with severe S. aureus infections. NGFβ was released by macrophages in response to S. aureus exoproteins through activation of the NOD-like receptors NLRP3 and NLRP4 and enhanced phagocytosis and superoxide-dependent killing, stimulated proinflammatory cytokine production, and promoted calcium-dependent neutrophil recruitment. TrkA knockdown in zebrafish increased susceptibility to S. aureus infection, confirming an evolutionarily conserved role for NGFβ-TRKA signaling in pathogen-specific host immunity.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping