阿斯特拉加卢斯多糖促进肠道干细胞通过HIF-1信号通路的再生
Qianqian Ding1, Xianpeng Zu2, Wei Chen2
1School of Pharmacy, Anhui University of Traditional Chinese Medicine, Hefei, China.
Journal of cellular and molecular medicine
|December 15, 2023
概括
阿斯特拉加卢斯多糖 (APS) 通过促进肠道干细胞 (ISC) 再生,保护肠道免受电离辐射 (IR) 损伤. 通过HIF-1信号通路,APS增强了生存和组织修复,这表明它作为辐射保护剂的潜力.
科学领域:
- 辐射生物学 辐射生物学
- 胃肠病学 胃肠病学
- 药理学 药理学是指药理学的学科.
背景情况:
- 电离辐射 (IR) 会导致严重的肠道损伤和高死亡率.
- 肠干细胞 (ISC) 对于损伤后的肠道再生至关重要.
- 阿斯特拉加勒斯多糖 (Astragalus polysaccharide,简称APS) 是从Astragalus membranaceus中提取的,它具有不同的生物活性.
研究的目的:
- 研究APS对IR引起的肠损伤的辐射保护作用.
- 探索APS促进肠道干细胞再生的机制.
主要方法:
- 在老鼠中,IR诱导的肠损伤的既定模型.
- 评估的生存率,组织损伤,密室生存率,ISC数量和紧结蛋白表达.
- 使用了MODE-K细胞活力测定和肠道有机体实验.
- 使用网络药理学,RNA测序和RT-PCR来分析信号通路.
主要成果:
- APS显著提高了生存率,并逆转了辐射诱导的肠道损伤.
- APS增加了肠道密室存活率,ISC数量和紧结蛋白表达.
- APS促进了MODE-K细胞活力和抑制了细胞亡,增强了ISC再生.
- APS调节了HIF-1信号通路,这对其辐射保护作用至关重要.
结论:
- APS显示显著的辐射保护作用对IR诱导的肠损伤.
- 通过HIF-1信号通路,APS促进ISC再生和肠道修复.
- APS是一种潜在的治疗剂,可以减轻辐射引起的胃肠道损伤.
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