通过集成的先前知识导向预测和基于化学同位素标记的代谢学,深度挖掘新型乙烯基聚氨酸
Yiran Zhang1, Qinwen Xiao1,2, Xinyao Zhou1,2
1School of Pharmacy, China Pharmaceutical University, Nanjing 210009, P. R. China.
Analytical chemistry
|July 15, 2025
概括
这项研究引入了一种新方法,用于发现新型乙聚氨酸 (乙-PA),这是疾病中重要的分子. 这种方法成功地发现了38种新的乙烯基-PA,为人们提供了关于它们在健康和疾病中的作用的见解.
科学领域:
- 代谢学 代谢学 代谢学
- 分析化学 分析化学
- 生物化学 生物化学
背景情况:
- 乙化聚氨酸 (乙-PAs) 涉及到各种疾病.
- 目前的分析方法限制了乙-PAs的表征和量化.
研究的目的:
- 开发一个强大的工作流程来识别和量化新型乙-PAs.
- 调查乙烯-PAs在性结肠炎 (UC) 中的作用和肠道微生物群的影响.
主要方法:
- 基于化学同位素标记的综合先前知识导向预测. 基于化学同位素标记的代谢学.
- 使用了UPLC-Q/TOF-MS与丹西尔化物标签用于乙烯-PA识别.
- 开发了一种伪向的代谢学方法,用于半量化.
主要成果:
- 构建了一个in silico库267预测的acyl-PAs.
- 成功注释了41种乙-PA,包括38种新型化合物.
- 在UC小鼠模型中鉴定出13个乙烯-PAs的显著变化,并证明了肠道微生物群的影响.
结论:
- 这项研究为新型代谢物发现提供了全面的工作流程.
- 提供了宝贵的见解,在疾病背景下对乙-PAs的生物学意义.
- 突出了肠道微生物群在乙-PA代谢中的关键作用.
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