An untargeted metabolomics approach to study changes of the medium during human cornea culture

IF 3.5 3区 医学 Q2 ENDOCRINOLOGY & METABOLISM Metabolomics Pub Date : 2024-04-06 DOI:10.1007/s11306-024-02102-5
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Abstract

Introduction

Two main approaches (organ culture and hypothermia) for the preservation and storage of human donor corneas are globally adopted for corneal preservation before the transplant. Hypothermia is a hypothermic storage which slows down cellular metabolism while organ culture, a corneal culture performed at 28–37 °C, maintains an active corneal metabolism. Researchers, till now, have just studied the impact of organ culture on human cornea after manipulating and disrupting tissues.

Objectives

The aim of the current work was to optimize an analytical procedure which can be useful for discovering biomarkers capable of predicting tissue health status. For the first time, this research proposed a preliminary metabolomics study on medium for organ culture without manipulating and disrupting the valuable human tissues which could be still used for transplantation.

Methods

In particular, the present research proposed a method for investigating changes in the medium, over a storage period of 20 days, in presence and absence of a human donor cornea. An untargeted metabolomics approach using UHPLC-QTOF was developed to deeply investigate the differences on metabolites and metabolic pathways and the influence of the presence of the cornea inside the medium.

Results

Differences in the expression of some compounds emerged from this preliminary metabolomics approach, in particular in medium maintained for 10 and 20 days in presence but also in the absence of cornea. A total of 173 metabolites have been annotated and 36 pathways were enriched by pathway analysis.

Conclusion

The results revealed a valuable untargeted metabolomics approach which can be applied in organ culture metabolomics.

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研究人类角膜培养过程中培养基变化的非靶向代谢组学方法
摘要 引言 在移植前的角膜保存方面,全球主要采用两种方法(器官培养和低温保存)来保存和储存人类捐献的角膜。低温保存是一种低温储存,可减缓细胞的新陈代谢,而器官培养是一种在 28-37 °C下进行的角膜培养,可保持角膜的新陈代谢活跃。迄今为止,研究人员只是研究了器官培养在操作和破坏组织后对人类角膜的影响。 目标 当前工作的目的是优化分析程序,使其有助于发现能够预测组织健康状况的生物标志物。本研究首次提出在不操作和破坏仍可用于移植的珍贵人体组织的情况下,对器官培养基进行初步代谢组学研究。 方法 特别是,本研究提出了一种方法,用于研究培养基在 20 天的储存期内,在有人类捐献角膜和没有人类捐献角膜的情况下的变化。利用超高效液相色谱-质谱(UHPLC-QTOF)开发了一种非靶向代谢组学方法,以深入研究代谢物和代谢途径的差异以及培养基中角膜存在的影响。 结果 这种初步的代谢组学方法发现了一些化合物的表达差异,尤其是在有角膜和无角膜的培养基中分别维持了 10 天和 20 天的情况下。共注释了 173 种代谢物,并通过通路分析富集了 36 条通路。 结论 这些结果揭示了一种有价值的非靶向代谢组学方法,可用于器官培养代谢组学研究。
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来源期刊
Metabolomics
Metabolomics 医学-内分泌学与代谢
CiteScore
6.60
自引率
2.80%
发文量
84
审稿时长
2 months
期刊介绍: Metabolomics publishes current research regarding the development of technology platforms for metabolomics. This includes, but is not limited to: metabolomic applications within man, including pre-clinical and clinical pharmacometabolomics for precision medicine metabolic profiling and fingerprinting metabolite target analysis metabolomic applications within animals, plants and microbes transcriptomics and proteomics in systems biology Metabolomics is an indispensable platform for researchers using new post-genomics approaches, to discover networks and interactions between metabolites, pharmaceuticals, SNPs, proteins and more. Its articles go beyond the genome and metabolome, by including original clinical study material together with big data from new emerging technologies.
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