在人类细胞模型中对类类化合物的消化,吸收和代谢进行了全面的研究
Jesús Marín-Sáez1, Rosalía Lopez-Ruiz1, Miguel A Faria2
1Research Group "Analytical Chemistry of Contaminants", Department of Chemistry and Physics, Research Centre for Mediterranean Intensive Agrosystems and Agri-Food Biotechnology (CIAIMBITAL), University of Almeria, Agrifood Campus of International Excellence, ceiA3, E-04120 Almeria, Spain; LAQV/REQUIMTE, Departamento de Ciências Químicas, Laboratório de Bromatologia e Hidrologia, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
草药茶中的热类化物 (TA) 在肠道中被吸收并在那里代谢,主要影响氨基酸和TCA通路. 这项研究澄清了TA的命运和摄入后的细胞影响.
科学领域:
- 毒理学 毒理学 毒理学
- 药理动力学 药理动力学
- 细胞的新陈代谢
背景情况:
- 特罗潘类化合物 (Tropane alkaloids,简称TAs) 是一种在草药输液中发现的具有抗胆固醇作用的有毒化合物.
- 摄入后TA的吸收和新陈代谢尚不清楚.
研究的目的:
- 在人体体外试验模型中研究五种关键的TAs (阿特罗平,斯科波胺,特罗平,荷马特罗平,阿波特罗平) 的吸收和代谢.
- 为了确定参与TA代谢的细胞位置和途径.
主要方法:
- 在体外使用的人类细胞模型:胃 (NCI-N87),肠道 (Caco-2:HT29-MTX) 和肝脏 (HEP-G2).
- 分析了不同细胞类型的TA吸收.
- 采用定制数据库和细胞代谢学与注释,碎片模拟和统计软件 (MetaboAnalyst 5.0) 来研究代谢.
主要成果:
- 酸盐在肠道细胞中具有很高的吸收性,但在胃细胞中吸收性较差.
- 代谢主要发生在肠道细胞中,通过化和甲基化.
- 识别了40种初步识别的化合物,具有显著的统计差异.
- 发现了氨基酸生物合成和TCA循环中的重大干扰.
结论:
- 肠道吸收和新陈代谢是TA处理的关键途径.
- TA代谢显著影响细胞能量,神经递质生产和氧化应激反应.
- 这些发现提高了对TA命运,代谢和摄入后细胞效应的理解.
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