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代谢物和代谢功能变化-内皮细胞衰老的潜在标记物
Jingyuan Ya1, Alison Whitby2, Ulvi Bayraktutan1,3
1Stroke, Academic Unit of Mental Health and Clinical Neurosciences, School of Medicine, Queens Medical Centre, University of Nottingham, Nottingham NG7 2UH, UK.
衰老的内皮细胞 (ECs) 有助于血管衰老. 代谢物分析确定了L-proline,L-glutamate,NAD+和taurine作为检测这些衰老细胞的潜在生物标志物.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 老年学是指老年学的学科.
背景情况:
- 衰老的内皮细胞 (ECs) 在血管系统中积累,导致血管衰老和相关疾病.
- 通过新的生物标志物识别衰老细胞对于预防与年龄相关的疾病和改善健康至关重要.
- 代谢物是生物通路的关键组成部分,是细胞过程的可靠指标.
研究的目的:
- 为老化的内皮细胞识别新的代谢生物标志物.
- 为了研究年轻和老化的人类大脑微血管内皮细胞 (HBMEC) 之间的代谢差异.
主要方法:
- 衰老的HBMECs被生成并以形态,核和酶变化为特征.
- 从年轻的与老化的HBMEC中进行了细胞内和分泌的代谢物的比较代谢分析.
- 评估了内皮特征,包括CD31/PECAM-1表达.
主要成果:
- 衰老的HBMECs表现出内皮特征的丧失,CD31/PECAM-1从细胞结节中消失.
- 在年轻和老化的HBMEC之间观察到葡萄糖,谷氨酸和脂肪酸代谢的显著差异.
- 确定了L-proline,L-glutamate,NAD+和 taurine/hypotaurine路径组件作为潜在的生物标志物.
结论:
- 代谢分析可以揭示老化的内皮细胞的关键差异.
- 像L-proline,L-glutamate,NAD+和taurine这样的特定代谢物显示出作为衰老ECs的生物标志物的承诺.
- 需要进一步的研究来验证这些代谢物作为生物标志物和血管衰老的潜在治疗点.
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