Interleukin 1 beta (IL-1 beta) action in porcine thyroid cells involves the ceramide signalling pathway |
| |
Authors: | Schneider C Delorme N El Btaouri H Hornebeck W Haye B Martiny L |
| |
Institution: | IFR 53 Biomolécules UPRES-A CNRS 6021 "Signalisation cellulaire et matrice extracellulaire" UFR de Médecine et de Sciences, Université de Reims Champagne-Ardenne, Reims, France. |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|