转化生长因子β1调高了A549和MCF-10A细胞中的6-酸果糖-2-激酶/果糖2,6-双酸酶-4表达
Tugba H Altunok1, Robertino J Muchut2, Alberto A Iglesias2
1Department of Biochemistry, School of Veterinary Medicine, Bursa Uludag University, Bursa, Turkey.
Cell biochemistry and function
|September 14, 2023
概括
转化生长因子β1 (TGFβ1) 通过上调酶PFKFB4.4来诱导上皮质-介质酶过渡 (EMT). PFKFB4对于TGFβ1驱动的EMT,入侵和癌细胞中的代谢重编程至关重要.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 转化生长因子β1 (TGFβ1) 是细胞过程的关键调节者,包括上皮-介质细胞转换 (EMT).
- EMT与代谢重编程有关,特别是增强的葡萄糖分解.
- 6 - 果糖-2-激酶/果糖2,6 - 双酸酶 (PFKFB) 酶在调节糖解中起着至关重要的作用.
研究的目的:
- 为了研究TGFβ1是否调节PFKFB基因表达.
- 确定是否需要PFKFB酶用于TGFβ1诱导的EMT和相关的表型.
主要方法:
- 使用A549和MCF-10A细胞系作为TGFβ1驱动EMT的模型.
- 使用实时定量聚合酶链反应量化基因表达.
- 使用小干扰RNA (siRNA) 和Matrigel入侵试验评估了PFKFB4的功能作用.
主要成果:
- 在两种细胞系中,TGFβ1显著上调PFKFB4表达.
- PFKFB4的耗尽部分抑制了TGFβ1诱导的EMT和入侵.
- 沉默PFKFB4减弱了TGFβ1介导的EMT标记物 (Snail,Fibronectin,E-cadherin) 的变化,并降低了糖解活性.
结论:
- 在上皮细胞中,TGFβ1诱导PFKFB4的表达.
- PFKFB4是TGFβ1驱动的EMT,代谢重编程和细胞入侵的关键调解者.
- 向PFKFB4可能为抑制TGFβ1驱动的癌症进展提供治疗策略.
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