通过基于代谢反应的分子网络揭示药物的代谢命运
Haodong Zhu1,2, Xupeng Tong3, Qi Wang1
1State Key Laboratory of Bioactive Molecules and Druggability Assessment; International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China; Guangdong Basic Research Center of Excellence for Natural Bioactive Molecules and Discovery of Innovative Drugs; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.
一个新的基于代谢反应的分子网络 (MRMN) 策略简化了药物代谢物的识别. 这种方法通过分析代谢反应和MS2光谱来提高准确性,改善药物发现和开发.
科学领域:
- 代谢学 代谢学 代谢学
- 药理学 药理学是指药理学的学科.
- 生物信息学是一种生物信息学.
背景情况:
- 准确识别药物代谢物对于了解药物的有效性和毒性至关重要.
- 目前使用液态染色体质谱法 (LC-MS) 进行代谢物注释的方法在效率和准确性方面面临挑战.
研究的目的:
- 引入一种新的基于代谢反应的分子网络 (MRMN) 策略,以实现高效和准确的分子网络.
- 一个子,一个子.
主要方法:
- 通过匹配代谢反应和评估MS2光谱相似性,MRMN构建网络.
- 创新包括改进的MS2光谱特征降解分析,排除内源干扰,以及对冗余节点的识别.
- 确保邻近代谢物的结构和MS2相似性之间至少有75%的相关性.
主要成果:
- 与GNPS相比,MRMN显著降低了网络复杂性,至少减少了79%的节点,49%的边缘和97%的子网络.
- 一种改进的冗余离子识别方法在样本中实现了10%-40%的识别率.
- 使用单个化合物,植物提取物和混合物验证的MRMN有效性.
结论:
- MRMN为发现原型药物及其代谢物提供了一个强大的战略.
- 该方法提高了基于LC-MS的研究中的代谢物注释准确性和效率.
- 在线免费访问MRMN,促进在药物发现研究中的更广泛应用.
更多相关视频
10:44Mass Spectrometry and Luminogenic-based Approaches to Characterize Phase I Metabolic Competency of In Vitro Cell Cultures
Published on: March 28, 2017
08:232 in 1: One-step Affinity Purification for the Parallel Analysis of Protein-Protein and Protein-Metabolite Complexes
Published on: August 6, 2018
相关概念视频
Drug Biotransformation: Overview
Drug Metabolism: Phase I Reactions
Drug Metabolism: Phase II Reactions
Factors Affecting Drug Biotransformation: Physicochemical and Chemical Properties of Drugs
The drug's acidity or basicity is essential in...
Phase I Reactions: Oxidation of Aliphatic and Aromatic Carbon-Containing Systems
Oxidation reactions are fundamental in aromatic carbon-containing systems. An example is the hydroxylation of phenobarbital, a process that transforms it into...
Drug Distribution: Tissue Binding
For...
