Interleukin 1 beta (IL-1 beta) action in porcine thyroid cells involves the ceramide signalling pathway.
Fiche publication
Date publication
février 2001
Journal
Cytokine
Auteurs
Membres identifiés du Cancéropôle Est :
Pr MARTINY Laurent, Dr SCHNEIDER Christophe, Dr EL BTAOURI Hassan
Tous les auteurs :
Schneider C, Delorme N, El Btaouri H, Hornebeck W, Haye B, Martiny L
Lien Pubmed
Résumé
Interleukin 1 beta (IL-1beta) is often associated with thyroidal autoimmune diseases. This cytokine has been largely described to trigger an important biological signalling pathway: the sphingomyelin/ceramide pathway. In this report we show that IL-1beta induces ceramide formation and sphingomyelin degradation in porcine thyroid cells via the activation of a neutral sphingomyelinase. Among the potential targets of IL-1beta and ceramides action, we have investigated the role of an atypical protein kinase C (PKC), the PKC zeta. We show that both IL-1beta and ceramides lead to an increase of PKCzeta activity. All these results suggest an important role for ceramides and IL-1beta in regulation of thyroid function, leading to cell survival or to apoptosis.
Mots clés
Animals, Cells, Cultured, Ceramides, physiology, Interleukin-1, physiology, Isoenzymes, physiology, Protein Kinase C, physiology, Signal Transduction, immunology, Sphingomyelins, physiology, Swine, Thyroid Gland, cytology
Référence
Cytokine. 2001 Feb;13(3):174-8