抄録
Addition of fibroblast growth factor (FGF) to quiescent cultures of Swiss 3T3 cells rapidly induced diacylglycerol formation, protein kinase C activation and Ca2+ mobilization. Protein kinase C-activating agents such as 12-O-tetradecanoylphorbol-13-acetate (TPA) and 1-oleoyl-2-acetylglycerol (OAG) mimicked the action of FGF and stimulated DNA synthesis in the presence of insulin. Prolonged treatment of the cells with phorbol-12,13-dibutyrate (PDBu) led to the down-regulation and complete disappearance of protein kinase C. In these cells, TPA and OAG did not induce DNA synthesis any more. FGF still elicited Ca2+ mobilization and DNA synthesis, but the magnitude of DNA synthesis was reduced to almost half as compared with that in the control cells. These results clearly indicate that both diacylglycerol and Ca2+ may serve as second messengers for FGF and suggest that these messengers may be involved in the mitogenic action of this growth factor.
本文言語 | 英語 |
---|---|
ページ(範囲) | 205-210 |
ページ数 | 6 |
ジャーナル | FEBS Letters |
巻 | 191 |
号 | 2 |
DOI | |
出版ステータス | 出版済み - 28-10-1985 |
外部発表 | はい |
All Science Journal Classification (ASJC) codes
- 生物理学
- 構造生物学
- 生化学
- 分子生物学
- 遺伝学
- 細胞生物学