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Review: High-coverage lipidomics for functional lipid and pathway analyses
Analytica Chimica Acta ( IF 6.2 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.aca.2020.11.024
Sin Man Lam , Zehua Wang , Bowen Li , Guanghou Shui

Rapid advances in front-end separation approaches and analytical technologies have accelerated the development of lipidomics, particularly in terms of increasing analytical coverage to encompass an expanding repertoire of lipids within a single analytical approach. Developments in lipid pathway analysis, however, have somewhat lingered behind, primarily due to (1) the lack of coherent alignment between lipid identifiers in common databases versus that generated from experiments, owing to the differing structural resolution of lipids at molecular level that is specific to the analytical approaches adopted by various laboratories; (2) the immense complexity of lipid metabolic relationships that may entail head group changes, fatty acyls modifications of various forms (e.g. elongation, desaturation, oxidation), as well as active remodeling that demands a multidimensional, panoramic view to take into account all possibilities in lipid pathway analyses. Herein, we discuss current efforts undertaken to address these challenges, as well as alternative form of "pathway analyses" that may be particularly useful for uncovering functional lipid interactions under different biological contexts. Consolidating lipid pathway analyses will be indispensable in facilitating the transition of lipidomics from its prior role of phenotype validation to a hypothesis-generating tool that uncovers novel molecular targets to drive downstream mechanistic pursuits under biomedical settings.

中文翻译:

综述:用于功能性脂质和通路分析的高覆盖脂质组学

前端分离方法和分析技术的快速进步加速了脂质组学的发展,特别是在增加分析覆盖范围以在单一分析方法中包含不断扩大的脂质库方面。然而,脂质通路分析的发展有些滞后,主要是由于 (1) 常见数据库中的脂质标识符与实验产生的标识符之间缺乏一致的对齐,这是由于特定分子水平的脂质结构分辨率不同各种实验室采用的分析方法;(2) 脂质代谢关系极其复杂,可能导致头基变化、各种形式的脂肪酰基修饰(例如伸长、去饱和、氧化),以及需要多维全景视图以考虑脂质通路分析中的所有可能性的主动重塑。在此,我们讨论了当前为解决这些挑战而进行的努力,以及可能对揭示不同生物学背景下的功能性脂质相互作用特别有用的“途径分析”的替代形式。巩固脂质途径分析对于促进脂质组学从其先前的表型验证作用转变为一种假设生成工具是必不可少的,该工具揭示了新的分子靶点,以推动生物医学环境下的下游机制研究。以及“途径分析”的替代形式,这可能对揭示不同生物学背景下的功能性脂质相互作用特别有用。巩固脂质途径分析对于促进脂质组学从其先前的表型验证作用转变为一种假设生成工具是必不可少的,该工具揭示了新的分子靶点,以推动生物医学环境下的下游机制研究。以及“途径分析”的替代形式,这可能对揭示不同生物学背景下的功能性脂质相互作用特别有用。巩固脂质途径分析对于促进脂质组学从其先前的表型验证作用转变为一种假设生成工具是必不可少的,该工具揭示了新的分子靶点,以推动生物医学环境下的下游机制研究。
更新日期:2021-02-01
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