6533b82afe1ef96bd128cc26
RESEARCH PRODUCT
Insulin-like growth factors counteract the effect of interleukin 1 beta on type II phospholipase A2 expression and arachidonic acid release by rabbit articular chondrocytes.
Joëlle MasliahM.t. CorvolFrancis BerenbaumGilbert BereziatS. PoiraudeauGinette Thomassubject
Cartilage Articularmedicine.medical_specialtymedicine.medical_treatmentBiophysicsIn Vitro TechniquesBiochemistryChondrocytePhospholipases AInterleukin 1βInsulin-like growth factorchemistry.chemical_compoundPhospholipase A2[ CHIM.ORGA ] Chemical Sciences/Organic chemistryPhospholipase A2Structural BiologyInsulin-Like Growth Factor IIInternal medicineGeneticsmedicineAnimalsInsulin-like growth factorRNA MessengerInsulin-Like Growth Factor IMolecular BiologyArachidonic Acidbiology[CHIM.ORGA]Chemical Sciences/Organic chemistryArthritisInterleukinCell Biology[CHIM.ORGA] Chemical Sciences/Organic chemistryChondrocyteSomatomedinPhospholipases A2Endocrinologymedicine.anatomical_structureCytokinechemistryInsulin-like growth factor 2biology.proteinArachidonic acidRabbitsInterleukin-1description
International audience; Interleukin 1 beta was found to stimulate arachidonic acid release, and the synthesis and secretion of type II phospholipase A2 by rabbit articular chondrocytes in vitro. Interleukin 1 beta had no effect on the level of cytosolic phospholipase A2 mRNA. Insulin-like growth factors, which help stabilize the cartilage matrix, reduced the effect of interleukin 1 beta on type II phospholipase A2 activity and mRNA level, and decreased the Interleukin 1 beta-stimulated arachidonic acid release to the basal values. This suggests that type II phospholipase A2 plays a key role in arachidonic acid release from rabbit articular chondrocytes and that insulin-like growth factors counteract the effect of interleukin 1 beta. They may therefore be considered as potential antiinflammatory agents.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-02-28 |