微生物组衍生的mycophenolate的重新激活解释了移植接受者肝脏循环的变化
Ole Martin Drevland1, Eric J de Muinck2,3, Pål Trosvik3
1Section for Pharmacologyand, Pharmaceutical Biosciences, Department of Pharmacy , University of Oslo, Oslo, Norway. oledre@uio.no.
Microbiome
|July 24, 2025
概括
肠道微生物组影响了移植患者的基酸 (MPA) 再循环. 特定的肠道细菌,如Faecalibacterium prausnitzii,影响MPA水平,可能引导个性化的免疫抑制药物剂量.
科学领域:
- 微生物组研究的研究.
- 药理学 药理学是指药理学的学科.
- 移植医学 移植医学
背景情况:
- 肠道微生物群的变化影响药物代谢,疗效和毒性.
- 菌酸 (MMF) 对于移植后的免疫抑制至关重要,但其活性形式 - - 菌酸 (MPA) 显示出药理学变异性.
- 这种变异性与MPA的肠肝循环有关,受肠道微生物组衍生的β-葡萄糖酶 (β-GUS) 的影响.
研究的目的:
- 为了研究MPA与脏移植接受者的肠道微生物群之间的双向相互作用.
- 为了确定微生物组衍生的β-GUS活性是否解释MPA肠肝循环的可变性.
- 确定特定的微生物物种和参与MPA代谢的基因.
主要方法:
- 从脏移植接受者和健康个体的便微生物组的枪支元基因组测序.
- 在体外测量MPAG对MPA的活性化率.
- 在体内MPA再循环和体外活性化率之间的相关性分析.
主要成果:
- 在个体微生物源的MPAG活性化率和MPA肠肝再循环之间发现了强烈的正相关性.
- 在Faecalibacterium prausnitzii中的特定β-GUS基因变异与MPAG转化为MPA有很强的关联.
- 在移植后观察到微生物组成的显著变化,包括F. prausnitzii和Akkermansia muciniphila.
结论:
- 活体外确定的MPA再激活率解释了肠肝循环的变化,突出了F. prausnitzii的作用.
- 肠道微生物组显著影响MPA的肠肝循环.
- 这些发现为优化移植患者个性化免疫抑制药物剂量提供了洞察力.
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