BMC Cell Biol:从分子水平证明白藜芦醇可对抗衰老

2017-11-04 MedSci MedSci原创

随着机体老化,mRNA剪接因子的表达也会发生改变,这被认为是一种老化机制。衰老细胞的积累也会随着年龄的增长而发生,并导致与年龄有关的退化性疾病的发生。但是,这两个过程之间的关系目前尚未清楚。因此,我们研发了一种基于白藜芦醇的小分子组合,以确定改变mRNA剪接因子的表达是否具有影响复制衰老特征的潜力。结果显示,使用白藜芦醇类似物治疗与剪接因子的表达改变相关,并可对抗衰老的多个特征。这种对抗功能不依赖

随着机体老化,mRNA剪接因子的表达也会发生改变,这被认为是一种老化机制。衰老细胞的积累也会随着年龄的增长而发生,并导致与年龄有关的退化性疾病的发生。但是,这两个过程之间的关系目前尚未清楚。因此,我们研发了一种基于白藜芦醇的小分子组合,以确定改变mRNA剪接因子的表达是否具有影响复制衰老特征的潜力。

结果显示,使用白藜芦醇类似物治疗与剪接因子的表达改变相关,并可对抗衰老的多个特征。这种对抗功能不依赖于细胞周期的改变,也独立于SIRT1、SASP调节或溶解。在生长条件允许的情况下,恢复剪接因子表达的细胞也显示端粒长度的增加,重新进入细胞周期并恢复细胞的增殖。这些现象也受到ERK拮抗剂和激动剂的影响。

总之,该研究首次证明了剪接因子水平的调节与人原代成纤维细胞中细胞衰老的逆转有关。这个靶标的小分子调节剂因此或可成为对抗衰老的有希望的治疗方法。

原始出处:

Eva Latorre, Vishal C. Birar, et al., Small molecule modulation of splicing factor expression is associated with rescue from cellular senescence. BMC Cell Biol. 2017; 18: 31. Published online 2017 Oct 17. doi: 10.1186/s12860-017-0147-7.

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    2018-07-06 sunylz
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    2018-08-30 维他命

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