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Multiple Sclerosis l: Introduction

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JUMPn: A Streamlined Application for Protein Co-Expression Clustering and Network Analysis in Proteomics

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Integrated Transcriptome Analysis Reveals Molecular Subtypes and ceRNA Networks in Multiple Sclerosis.

Caili Ji¹, Li Ding¹, Fumin Jia²

¹Department of Clinical Laboratory, Jingjiang People's Hospital Affiliated to Yangzhou University, Taizhou, Jiangsu, 214504, People's Republic of China.

Degenerative Neurological and Neuromuscular Disease

|December 26, 2024

Summary

Researchers identified three distinct molecular subtypes of multiple sclerosis (MS). One subtype (C3) shows increased neurodegeneration and immune activity, suggesting a more severe disease course and potential therapeutic targets.

Keywords:

TUBA1A circRNA miRNA molecular subtypes multiple sclerosis

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Area of Science:

Neuroimmunology
Genomics
Molecular Biology

Background:

Multiple sclerosis (MS) is a chronic central nervous system (CNS) autoimmune disease.
Understanding MS molecular subtypes and mechanisms is crucial for developing effective therapies.

Purpose of the Study:

To identify distinct molecular subtypes of MS using transcriptome data.
To characterize these subtypes and explore potential regulatory interactions involving circRNAs and miRNAs.

Main Methods:

Transcriptome data from 215 MS patients were analyzed using ConsensusClusterPlus.
Differential gene expression, variability, and ceRNA interactions (circRNAs, miRNAs) were assessed.

Main Results:

Three molecular subtypes were identified: MS-FCRL1 (C1), MS-BTG1 (C2), and MS-RPL38 (C3).
Subtype C3 showed enrichment in neurodegenerative pathways, heightened immune activity, and immune cell infiltration, indicating a potentially more severe disease.
18 differentially expressed circRNAs and 22 miRNAs were identified, with EEF1D and TUBA1A as hub targets in C3.

Conclusions:

Distinct immune pathway activation across MS subtypes highlights gene expression's role in disease heterogeneity.
A proposed circ_0045537/miR-196a-5p/TUBA1A axis in subtype C3 may modulate microtubule dynamics and exacerbate MS severity.