在初级和诱导的多能干细胞干细胞衍生的脑微血管内皮细胞之间,氨酸代谢在系统上有所不同
Callie M Weber1, Bilal Moiz1, Marzyeh Kheradmand1
1Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA.
概括
人类初级大脑微血管内皮细胞 (hpBMEC) 和iPSC衍生细胞 (hiBMEC) 不同地代谢谷氨酸. 这些代谢变异对神经疾病研究和药物输送的血脑屏障模型产生影响.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 神经科学是一个神经科学.
背景情况:
- 人类初级 (hpBMEC) 和诱导多能干细胞 (iPSC) 衍生的脑微血管内皮样细胞 (hiBMEC) 对于血脑屏障 (BBB) 研究至关重要.
- 这两种细胞类型都在重要的代谢过程中利用谷氨.
- 了解谷氨胺代谢的差异对于准确的BBB建模至关重要.
研究的目的:
- 为了研究和比较hpBMEC和hiBMEC中的谷氨胺代谢.
- 确定代谢差异如何影响这些细胞在BBB模型中的效用.
- 为了确定iPSC衍生细胞的潜在代谢干预.
主要方法:
- 代谢分析的代谢分析
- 转录组分析 转录组分析
- 计算建模计算建模
- α-谷氨酸 (α-KG) 补充剂的实验
主要成果:
- 在hpBMEC和hiBMEC之间观察到谷氨胺代谢的显著系统差异.
- hpBMEC的代谢率更高,产生更多的谷氨酸和GABA.
- 在hiBMEC中,谷氨,脂肪酸和阿斯巴拉金的产量增加,与较高的氧化应激相关.
- α-KG补充剂在hiBMEC中使谷氨酸分泌正常化,但降低了它们的糖分分解率.
结论:
- 主要和iPSC衍生的脑内皮细胞之间存在根本的代谢差异.
- 这些代谢差异可能会影响*体外*BBB模型的功能.
- 仔细评估iPSC衍生的细胞代谢对于可靠的疾病建模和药物输送研究至关重要.
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