通过肠道微生物介导的自激活抑制了饮食中的乌洛A
Jiayin Zhang1, Rong Zhang1, Lemei Sun1
1College of Enology, Northwest A&F University, Yangling, 712100, China.
The Journal of nutritional biochemistry
|August 23, 2025
概括
肠道微生物代谢物Urolithin A通过触发细胞死亡途径和改变肠道细菌来抑制肺癌的生长. 通过调节自和肠道微生物群,该代谢物对肺癌治疗具有前景.
科学领域:
- 癌症学
- 微生物学
- 代谢学
背景情况:
- 肠道微生物群产生的酸代谢物Urolithin A (UA) 已显示出潜在的抗瘤作用.
- 它在肺癌干预中的具体作用和机制尚不清楚.
研究的目的:
- 研究乌罗素A对肺癌细胞的抗癌作用.
- 阐明潜在的机制,包括自和肠道微生物群调节.
主要方法:
- 在体外细胞增殖测定和西式抹杀自标志物 (LC3-II).
- 转录组分析以确定受UA影响的分子通路.
- 使用H1975异种移植小鼠模型的体内研究.
- 用于肠道微生物群分析和与基因表达相关的16S rRNA测序.
主要成果:
- 在剂量和时间上抑制了乌罗立A的肺癌细胞增殖.
- 通过抑制PI3K/ AKT/ mTOR途径诱导自.
- 在体内,UA减少了瘤生长,增强了自,调节了肠道微生物群,增加了乳酸菌和减少了desulfovibrio.
- 微生物群转移与自相关的基因表达相关.
结论:
- 乌罗立A在体外和体内都表现出显著的抗肺癌活性.
- 抗瘤作用通过自诱导和肠道微生物群重塑.
- 通过对细胞通路和肠道微生物组的双重作用,UA代表了肺癌干预的潜在治疗剂.
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