First Author | Boudot C | Year | 2003 |
Journal | Biochem Biophys Res Commun | Volume | 300 |
Issue | 2 | Pages | 437-42 |
PubMed ID | 12504103 | Mgi Jnum | J:266150 |
Mgi Id | MGI:6217991 | Doi | 10.1016/s0006-291x(02)02866-8 |
Citation | Boudot C, et al. (2003) Involvement of the Src kinase Lyn in phospholipase C-gamma 2 phosphorylation and phosphatidylinositol 3-kinase activation in Epo signalling. Biochem Biophys Res Commun 300(2):437-42 |
abstractText | We examined the role of the Src kinase Lyn in phospholipase C-gamma 2 (PLC-gamma 2) and phosphatidylinositol (PI) 3-kinase activation in erythropoietin (Epo)-stimulated FDC-P1 cells transfected with a wild type (WT) Epo-receptor (Epo-R). We showed that two inhibitors of Src kinases, PP1 and PP2, abolish both PLC-gamma 2 tyrosine phosphorylation and PI 3-kinase activity in WT Epo-R FDC-P1 cells. We also demonstrated that Epo-phosphorylated Lyn is associated with tyrosine phosphorylated PLC-gamma 2 and PI 3-kinase in WT Epo-R FDC-P1-stimulated cells. Moreover Epo-activated Lyn phosphorylates in vitro PLC-gamma 2 immunoprecipitated from unstimulated cells. Our results suggest that the Src kinase Lyn is involved in PLC-gamma 2 phosphorylation and PI 3-kinase activation induced by Epo. |