Lipid Profile Characterization of Human Micro-Fragmented Adipose Tissue via Untargeted Lipidomics
Camillo Morano1, Michele Dei Cas1,2, Giulio Alessandri2,3
1Clinical Biochemistry and Mass Spectrometry Laboratory, Department of Health Sciences, University of Milan, 20122 Milan, Italy.
Biomolecules
|July 29, 2025
Summary
Micro-fragmentation of lipoaspirate (LA) into micro-fragmented fat tissue (MFAT) alters its lipid profile, increasing certain lipid subclasses and decreasing monounsaturated fatty acids. Further research is needed to understand the clinical implications of these lipidomic changes.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Lipidomics
Background:
- Adipose tissue is a valuable source for regenerative medicine due to mesenchymal stem cells (MSCs).
- Micro-fragmentation of lipoaspirate (LA) is a technique used to prepare adipose tissue for clinical applications.
- Understanding tissue modifications during processing is crucial for optimizing therapeutic outcomes.
Purpose of the Study:
- To compare the untargeted and targeted lipidomic profiles of human lipoaspirate (LA) and micro-fragmented fat tissue (MFAT).
- To identify qualitative lipid modifications occurring during the mechanical micro-fragmentation process.
- To assess the potential biological implications of these lipidomic changes for clinical use.
Main Methods:
- Mechanical micro-fragmentation of human lipoaspirate using a commercial device.
- Untargeted and targeted lipidomic analysis of both LA and MFAT.
- Quantification and comparison of various lipid subclasses and fatty acids.
Main Results:
- Micro-fragmented fat tissue (MFAT) showed a higher representation of lipid subclasses including diacylglycerols, triacylglycerols, phospholipids, and sphingolipids compared to lipoaspirate (LA).
- Targeted fatty acid analysis revealed a lower abundance of monounsaturated fatty acids in MFAT.
- The processing resulted in a homogeneous micro-fragmentation of the fat tissue.
Conclusions:
- Mechanical micro-fragmentation significantly alters the lipid composition of adipose tissue.
- The observed lipidomic changes in MFAT warrant further investigation into their biological and clinical significance.
- Understanding these modifications is essential for optimizing MFAT's use in regenerative medicine and drug delivery scaffolds.
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