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Author Spotlight: Advancing the Analysis of Plasma Extracellular Vesicle Proteome for Cardiovascular Biomarker Studies
Published on: January 31, 2025
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Multi-omics analysis of magnetically levitated plasma biomolecules.
Ali Akbar Ashkarran1, Hassan Gharibi2, Dalia Abou Zeki3
1Department of Radiology and Precision Health Program, Michigan State University, East Lansing, MI, USA.
Biosensors & Bioelectronics
|November 20, 2022
Summary
Superparamagnetic iron oxide nanoparticles (SPIONs) in magnetic levitation (MagLev) reveal distinct lipid and metabolite patterns in plasma bands. These patterns correlate with multiple sclerosis (MS) subtypes, aiding biomarker discovery.
Area of Science:
- Biomolecular analysis
- Nanotechnology applications
- Medical diagnostics
Background:
- Superparamagnetic iron oxide nanoparticles (SPIONs) enable magnetic levitation (MagLev) of plasma biomolecules.
- MagLev forms ellipsoidal bands of biomolecules, offering a novel separation method.
- Understanding the composition of these bands is crucial for diagnostic applications.
Purpose of the Study:
- To comprehensively characterize the biomolecular composition of MagLev-formed ellipsoidal bands using multi-omics analyses.
- To investigate the correlation between biomolecular band composition and the health status of plasma donors, specifically focusing on multiple sclerosis (MS) subtypes.
- To identify specific lipids and metabolites that can discriminate between different MS subtypes.
Main Methods:
- Utilized magnetic levitation (MagLev) with superparamagnetic iron oxide nanoparticles (SPIONs) to levitate plasma biomolecules.
- Performed comprehensive multi-omics analyses (lipidomics and metabolomics) on the distinct ellipsoidal bands formed.
- Analyzed plasma samples from individuals with different multiple sclerosis (MS) subtypes: relapsing-remitting MS (RRMS), secondary-progressive MS (SPMS), and primary-progressive MS (PPMS).
Main Results:
- While protein composition showed minimal variability, significant differences were observed in lipidome and metabolome profiles across MagLev bands.
- The lipidome and metabolome compositions within the ellipsoidal bands contain information reflective of the plasma donor's health status.
- Specific lipids and metabolites in distinct MagLev band layers significantly contributed to the discrimination of RRMS, SPMS, and PPMS subtypes.
Conclusions:
- Magnetic levitation (MagLev) of plasma biomolecules can effectively differentiate health statuses and disease subtypes.
- Lipid and metabolite profiles within MagLev bands serve as valuable biomarkers for multiple sclerosis (MS) subtyping.
- This approach shows promise for biomarker discovery and disease subtyping in clinical diagnostics.
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