Synergistic and antagonistic interaction between different branches of the immune system is related to melanin-based coloration in nestling tawny owls.

Détails

Ressource 1Télécharger: BIB_F8DD5FAF5B35.P001.pdf (173.86 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_F8DD5FAF5B35
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Synergistic and antagonistic interaction between different branches of the immune system is related to melanin-based coloration in nestling tawny owls.
Périodique
Journal of Evolutionary Biology
Auteur(s)
Gasparini J., Piault R., Bize P., Roulin A.
ISSN
1420-9101 (Electronic)
ISSN-L
1010-061X
Statut éditorial
Publié
Date de publication
2009
Peer-reviewed
Oui
Volume
22
Numéro
11
Pages
2348-2353
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Résumé
When exposed to parasites, hosts often mount energetically expensive immune responses, and this may alter resource allocation between competing life history traits including other components of the immune system. Here, we investigated whether a humoral immune challenge towards a vaccine reduces or enhances the cutaneous immune responses towards an injection of lipopolysaccharid (LPS, innate immunity) and phytohaemagglutinin (PHA, T-cell immunity) in nestling tawny owls in interaction with the degree of plumage melanin-based coloration. The humoral immune challenge enhanced the response to LPS similarly in differently coloured nestlings. In contrast, the same humoral immune challenge enhanced immune response to PHA in dark reddish melanic nestlings while reducing it in pale reddish melanic nestlings. Our results highlight that both antagonistic and synergistic interactions can take place among branches of immune system, and that the sign and magnitude of these interactions can vary with immune responses involved and the degree of melanin-based coloration.
Mots-clé
Animals, Color, Feathers/metabolism, Immunity, Humoral/drug effects, Immunity, Humoral/physiology, Immunity, Innate/drug effects, Immunity, Innate/physiology, Lipopolysaccharides/pharmacology, Melanins/metabolism, Phytohemagglutinins/pharmacology, Strigiformes/immunology, Strigiformes/metabolism, Vaccines/pharmacology
Pubmed
Web of science
Open Access
Oui
Création de la notice
21/08/2009 10:07
Dernière modification de la notice
09/05/2019 3:42
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