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The macrophage activity marker sCD14 is increased in patients with multiple sclerosis and upregulated by interferon
J Brettschneider1, D Ecker, A Bitsch
1Department of Neurology, University of Ulm, Oberer Eselsberg 45, 89081, Ulm, Germany.
Abstract:
The soluble form of the CD14 molecule (sCD14), a macrophage activity marker, was measured in the plasma of 17 patients with primary progressive multiple sclerosis (PPMS) and 20 patients with relapsing remitting MS (RRMS). In patients with PPMS, sCD14 levels were determined before and after treatment with interferon beta (IFNB). In both PPMS and in RRMS, sCD14 levels were significantly elevated compared to healthy controls. In patients with PPMS, sCD14 levels increased significantly during the first 3 months of IFNB therapy, then slightly decreased, but still remained elevated compared with levels before therapy. Therefore, the elevated sCD14 levels may be a marker in evaluating biological response to IFNB therapy.
Insights
Soluble CD14 (sCD14), a marker of macrophage activity, was elevated in multiple sclerosis (MS) patients. Interferon beta (IFNB) therapy increased sCD14 levels in primary progressive MS, suggesting sCD14 may indicate treatment response.
Area of Science:
- Neuroimmunology
- Biomarker Discovery
- Multiple Sclerosis Pathophysiology
Background:
- Soluble CD14 (sCD14) is a marker of macrophage activation.
- Elevated sCD14 levels are implicated in various inflammatory conditions.
- Understanding macrophage activity markers in multiple sclerosis (MS) is crucial for treatment evaluation.
Purpose of the Study:
- To investigate sCD14 levels in patients with primary progressive MS (PPMS) and relapsing-remitting MS (RRMS).
- To assess the impact of interferon beta (IFNB) therapy on sCD14 levels in PPMS patients.
Main Methods:
- Plasma sCD14 levels were measured in 17 PPMS patients and 20 RRMS patients.
- sCD14 levels in PPMS patients were analyzed before and after IFNB treatment.
- Comparison with healthy controls was performed.
Main Results:
- Both PPMS and RRMS patients exhibited significantly elevated sCD14 levels compared to healthy controls.
- In PPMS patients, sCD14 levels significantly increased within the first 3 months of IFNB therapy.
- Following the initial increase, sCD14 levels slightly decreased but remained elevated compared to pre-treatment levels.
Conclusions:
- Elevated sCD14 levels are present in both PPMS and RRMS.
- sCD14 levels show a dynamic change during IFNB therapy in PPMS.
- Elevated sCD14 may serve as a valuable biomarker for assessing the biological response to IFNB therapy in MS.