人类多能干细胞被一种海洋天然产品衍生物选择性消除
Ting-Fang Kuo1, Di Mao, Nao Hirata
1Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University , Kyoto 606-8501, Japan.
Journal of the American Chemical Society
|July 4, 2014
概括
科学家们发现了一种可以杀死人类多能干细胞的化合物,这是更安全的干细胞治疗的关键一步. 这一发现解决了治疗中从未分化的细胞中瘤形成的风险.
科学领域:
- 生物化学和分子生物学
- 干细胞生物学 干细胞生物学
- 药物发现 药物发现 药物发现
背景情况:
- 剩余的未分化干细胞的瘤起源潜力是干细胞治疗的一个主要障碍.
- 开发选择性消除多能干细胞的方法对于治疗安全至关重要.
研究的目的:
- 识别可选择性诱导人类多能干细胞死亡的试剂.
- 探索ATP结合盒 (ABC) 载体在干细胞生存和药物选择性中的作用.
主要方法:
- 对333种细胞毒性化合物进行了基于细胞的查.
- 鉴定了甲基27-脱氧-27-oxookadaate (分子1) 作为一种选择性剂.
- 研究了分子1与ABCB1 (MDR1) 和ABCG2 (BCRP) 载体的相互作用.
主要成果:
- 甲基27-脱氧-27-oxookadaate选择性地诱导人类多能干细胞的死亡.
- 分子1是ABCB1和ABCG2载体的基质,这些载体在多能干细胞中被抑制.
- ABC 载体的表达水平与对细胞毒性化合物的敏感性相关.
结论:
- 选择性消除人类多能干细胞是可以使用小分子向ABC传送器实现的.
- 合成的酸衍生物可以被设计为干细胞治疗应用的选择性细胞毒剂.
- 这种方法提供了一个有前途的策略,以减轻与残留不分化的干细胞相关的风险.
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