铁通过增强肝脏中葡萄糖载体GLUT3的表达来调节细胞增殖
Kleber S Ribeiro1, Eshani Karmakar1, Christine Park1
1School of Medicine, Saint Louis University, St. Louis, MO 63104, USA.
Cells
|July 12, 2024
概括
在肝脏中过度积累的铁通过AMPK/CREB1通路调节葡萄糖载体GLUT3,促进肝癌细胞的增殖. β-基酸盐可能为肝细胞癌提供治疗策略.
科学领域:
- 生物化学 生物化学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 肝脏中铁的积累与肝硬化和癌症有关.
- 葡萄糖载体 (GLUT1,GLUT3) 的升高与肝细胞癌 (HCC) 的生存率差相关.
- 铁对葡萄糖载体和瘤增殖的调节作用尚不清楚.
研究的目的:
- 调查铁的积累是否调节葡萄糖载体的表达,并有助于肝癌细胞的增殖.
- 阐明参与铁诱导的葡萄糖转运器上调的分子通路.
- 为了探索与铁有关的肝癌中β-酸的治疗潜力.
主要方法:
- 用铁氨基酸盐 (FAC) 或铁右治疗HepG2肝细胞和小鼠,以诱导铁的积累.
- 对GLUT3mRNA和蛋白质表达的分析.
- 通过铁化剂德费里对LKB1/AMPK/CREB1通路激活和逆转的研究.
- 使用siRNA抑制GLUT3.3的细胞循环标记和增殖的评估.
- 在体外和体内对β-酸治疗的评估.
主要成果:
- 铁酸 (FAC) 治疗剂量取决于HepG2细胞中的GLUT3mRNA和蛋白质的上调.
- 在小鼠中的铁积累显著增强了肝脏GLUT3表达.
- 铁诱导的GLUT3上调是通过LKB1/AMPK/CREB1通路调节的,可逆性与deferiprone.
- 抑制GLUT3阻止了铁介导的细胞周期标记物增加和超增殖.
- β-基酸抑制了铁介导的肝 GLUT3 激活.
结论:
- 铁的积累通过LKB1/AMPK/CREB1通路显著提高肝脏GLUT3表达的调节.
- 铁诱导的GLUT3有助于肝细胞癌细胞的增殖.
- 在高GLUT3表达的HCC中,β-基酸显示出治疗潜力.
关键词:
这就是AMPKK.在CREB1中,CREB1是指CREB1,CREB1是指CREB1,CREB1是指CREB1.在GLUT3中,GLUT3是最重要的.细胞的增殖细胞的增殖.铁的过载是铁的过载.更多相关视频
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