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Published on: July 19, 2019
Myelin basic protein-like material in the urine of multiple sclerosis patients: relationships to clinical and
1Department of Neurology, University of Alabama at Birmingham, USA.
Abstract:
Urinary myelin basic protein-like material (MBPLM) represents material which is cross-reactive with a cryptic epitope in peptide 84-89 of human myelin basic protein. While normally present at moderate levels in the adult, these levels rise higher in patients who have secondary progressive multiple sclerosis (MS). The increase in urine MBPLM correlates with the burden of disease detected by T2-weighted cranial magnetic resonance imaging. There is no correlation between urinary MBPLM and acute disease activity in relapsing-remitting MS. The first major need for improving the clinical utility of measurements of MBPLM in urine in MS patients is to delineate its exact chemical features so that assays may be improved and a potential biological role of the MBPLM better understood. The second major task is to apply the group data accumulated and apply them to individual patients. This could prove to be means to individually direct treatment and determine its effectiveness.
Insights
Elevated urinary myelin basic protein-like material (MBPLM) indicates higher disease burden in secondary progressive multiple sclerosis (MS). This biomarker shows potential for personalized MS treatment monitoring.
Area of Science:
- Neuroimmunology
- Biomarker Discovery
- Multiple Sclerosis Pathophysiology
Background:
- Urinary myelin basic protein-like material (MBPLM) is cross-reactive with a human myelin basic protein epitope.
- MBPLM levels are moderately present in adults but elevated in secondary progressive multiple sclerosis (SPMS).
Purpose of the Study:
- To investigate the correlation between urinary MBPLM and disease burden in MS patients.
- To identify the need for chemical characterization of MBPLM for assay improvement and understanding its biological role.
- To explore the application of MBPLM data for personalized MS treatment and effectiveness monitoring.
Main Methods:
- Measurement of urinary MBPLM levels.
- Correlation analysis with T2-weighted cranial magnetic resonance imaging for disease burden assessment.
- Distinguishing correlations in secondary progressive MS versus relapsing-remitting MS.
Main Results:
- Increased urinary MBPLM correlates with greater disease burden in SPMS, as shown by MRI.
- No correlation was found between urinary MBPLM and acute disease activity in relapsing-remitting MS.
- Urinary MBPLM shows potential as a biomarker for disease progression in MS.
Conclusions:
- Urinary MBPLM levels are associated with the cumulative disease burden in SPMS.
- Further research is needed to define MBPLM's chemical nature and biological function.
- Urinary MBPLM holds promise for guiding individualized MS treatment strategies and evaluating therapeutic efficacy.
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