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Published in: Journal of Neuroinflammation 1/2023

Open Access 01-12-2023 | Multiple Sclerosis | Research

miRNA 548a-3p as biomarker of NEDA-3 at 2 years in multiple sclerosis patients treated with fingolimod

Authors: Alicia Gonzalez-Martinez, Rohit Patel, Brian C. Healy, Hrishikesh Lokhande, Anu Paul, Shrishti Saxena, Mariann Polgar-Turcsanyi, Howard L. Weiner, Tanuja Chitnis

Published in: Journal of Neuroinflammation | Issue 1/2023

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Abstract

Background

Multiple sclerosis (MS) is a disabling autoimmune demyelinating disorder affecting young people and causing significant disability. In the last decade, different microRNA (miRNA) expression patterns have been associated to several treatment response therapies such as interferon and glatiramer acetate. Nowadays, there is increasing interest in the potential role of miRNA as treatment response biomarkers to the most recent oral and intravenous treatments. In this study, we aimed to evaluate serum miRNAs as biomarkers of No Evidence of Disease Activity (NEDA-3) at 2 years in patients with relapsing remitting MS (RRMS) treated with fingolimod.

Main body

A Discovery cohort of 31 RRMS patients treated with fingolimod were identified from the CLIMB study and classified as No Evidence of Disease Activity (NEDA-3) or Evidence of Disease Activity (EDA-3) after 2 years on treatment. Levels of miRNA expression were measured at 6 months using human serum miRNA panels and compared in EDA-3 and NEDA-3 groups using the Wilcoxon rank sum test. A set of differentially expressed miRNA was further validated in an independent cohort of 22 fingolimod-treated patients. We found that 548a-3p serum levels were higher levels in fingolimod-treated patients classified as NEDA-3, compared to the EDA-3 group in both the Discovery (n = 31; p = 0.04) and Validation (n = 22; p = 0.03) cohorts 6 months after treatment initiation; miR-548a-3p provided an AUC of 0.882 discriminating patients with NEDA-3 at 2 years in the Validation cohort.

Conclusion

Our results show differences in miR-548a-3p expression at 6 months after fingolimod start in patients with MS with NEDA-3 at 2 years. These results provide class III evidence of the use of miR-548a-3p as biomarker of NEDA-3 in patients with fingolimod.
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Literature
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Metadata
Title
miRNA 548a-3p as biomarker of NEDA-3 at 2 years in multiple sclerosis patients treated with fingolimod
Authors
Alicia Gonzalez-Martinez
Rohit Patel
Brian C. Healy
Hrishikesh Lokhande
Anu Paul
Shrishti Saxena
Mariann Polgar-Turcsanyi
Howard L. Weiner
Tanuja Chitnis
Publication date
01-12-2023
Publisher
BioMed Central
Published in
Journal of Neuroinflammation / Issue 1/2023
Electronic ISSN: 1742-2094
DOI
https://doi.org/10.1186/s12974-023-02811-z

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