印-3-酸是一种来自肠道微生物群的甲酸代谢物,促进内皮功能障碍,损害了内皮细胞中纯能诱导的氧化释放的内皮细胞
Federica Geddo1, Susanna Antoniotti1, Maria Pia Gallo1
1Department of Life Sciences and Systems Biology, University of Turin, Via Accademia Albertina 13, 10123 Turin, Italy.
International journal of molecular sciences
|March 28, 2024
概括
作为肠道微生物的代谢物,英多尔-3-酸 (IPA) 在生理度下损害了内皮氧化 (NO) 的释放. 这表明IPA可能会对血管度和心脏代谢健康产生负面影响.
科学领域:
- 心血管生物学心血管生物学
- 微生物组研究的研究.
- 脑内皮的功能 脑内皮功能
背景情况:
- 肠道微生物群的代谢物影响心血管健康.
- 来自托芬的英多尔-3-烯酸 (IPA) 对心血管功能有争议的影响.
- 内皮功能障碍是心血管疾病的关键因素.
研究的目的:
- 为了研究英多尔-3-酸 (IPA) 在内皮功能障碍中的作用.
- 确定IPA对内皮细胞中氧化 (NO) 生产和内皮氧化合成酶 (eNOS) 酸化的影响.
主要方法:
- 用MTS测定牛大动脉内皮细胞 (BAE-1) 来评估IPA的细胞毒性.
- 使用光探针测量了细胞内活性氧物种 (ROS) 和氧化 (NO) 产量.
- 内皮氧化合成酶 (eNOS) 酸化 (p-eNOS) 通过免疫染进行了分析.
主要成果:
- IPA在生理度 (1μM) 时不具有细胞毒性,并且没有氧化剂或抗氧化剂活性.
- IPA的生理度显著降低了ATP刺激BAE-1细胞中NO的释放.
- IPA治疗导致纯能刺激BAE-1细胞中的p-eNOS显著减少.
结论:
- IPA通过损害内皮 NO 释放而对血管度产生负面影响.
- 来自肠道微生物群的IPA可能会导致心脏代谢健康问题.
- 需要进一步的研究来阐明将肠道微生物群代谢物与心血管健康联系在一起的机制.
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