Armelin M C, Stocco R C, Armelin H A
J Cell Biol. 1983 Aug;97(2):455-8. doi: 10.1083/jcb.97.2.455.
We undertook a comparative study of the effects of the hormone hydrocortisone (Hy) on C6 glioma cells grown in monolayer and in suspension in cultures. We found Hy reversibly renders C6 cells anchorage- and serum-dependent for their growth. In monolayer cultures, Hy was found to inhibit cell cycle traversing exclusively at G1 phase. In agarose suspension, Hy was found to block colony development. Hy-resistant variants were selected and isolated in agarose suspension. Examination of these variants showed that cells selected for Hy-resistance in suspension can be Hy sensitive when anchored to a solid substrate. We conclude that resistance to Hy in suspension and resistance to it in monolayer culture are two independent phenotypes.
我们对激素氢化可的松(Hy)对单层培养和悬浮培养的C6胶质瘤细胞的影响进行了一项比较研究。我们发现Hy能使C6细胞的生长可逆地依赖于贴壁和血清。在单层培养中,发现Hy仅在G1期抑制细胞周期进程。在琼脂糖悬浮培养中,发现Hy能阻止集落形成。在琼脂糖悬浮培养中选择并分离出了Hy抗性变体。对这些变体的检测表明,在悬浮培养中选择的Hy抗性细胞在锚定到固体基质上时可能对Hy敏感。我们得出结论,悬浮培养中对Hy的抗性和单层培养中对Hy的抗性是两种独立的表型。