无机的铅(Pb ) 是最普通的环境污染物质之一。许多证据显示 Pb 暴露能直接影响鱼生长和开发。在这研究,我们在鲫鱼鲤鱼 Carassius auratus 在蛋白质和 mRNA 水平在细胞骨架蛋白质稳定性上调查了 Pb 的细胞毒素的效果。Pb (在 100 μmol/L 的集中的 3)2 处理都没导致 α 导管素和 β-tubulin 的减少的表示但是是的 γ-tubulin 有 SDS 页,西方的污点,和 ELISA 的 assayed。在 vivo 并且在 vitro,导管素的蛋白质表示上的分析是一致的。mRNA 表示上的 Pb 的效果在不同纸巾之中变化了。我们的结果建议在蛋白质翻译水平的 Pb 的 cytotoxicity 比在 mRNA 表示水平强壮。
Inorganic lead (Pb) is one of the most common environmental pollutants. Much evidence indicates that Pb exposure could directly affect fish growth and development. In this study, we investigated the cytotoxic effects of Pb on cytoskeletal protein stability at both protein and mRNA level in crucian carp Carassius auratus. Pb(NO3)2 treatment in concentration of 100 μmol/L resulted in decreased expression of both α- and β-tubulin but γ-tubulin as assayed with SDS-PAGE, Western Blot, and ELISA. In vivo and in vitro analyses on protein expression of tubulins are consistent. The effect of Pb on mRNA expression varied among different tissues. Our results suggest that cytotoxicity of Pb at protein translation level is stronger than at mRNA expression level.