ArticleNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2026
Ofatumumab therapy modulates the meningeal lymphatic draining function in patients with multiple sclerosis: a pilot study.
Article in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND AND
objectivesMeningeal lymphatic vessels (mLVs) are critical for central nervous system waste clearance and immunomodulation， implicated in multiple sclerosis pathogenesis. Although ofatumumab is effective in treating relapsing-remitting MS (RRMS), its effects on mLVs function remain unclear. This study aimed to investigate its impact on mLVs drainage in RRMS patients.
methodsFifteen RRMS patients were enrolled in this prospective cohort study with ofatumumab, and nine healthy controls were recruited. Drainage function of mLVs was quantified via dynamic contrast-enhanced magnetic resonance imaging at baseline, month 6 and month 12. Correlations between changes in drainage function and immune cell subsets were analyzed.
resultsFollowing ofatumumab treatment, significant reductions were observed in mean time-to-peak (0.75 to 0.52, p = 0.007) and area under the curve (AUC, 30.70 to 12.67, p = 0.001) within mLVs. Baseline mLVs parameters did not differ between RRMS patients and healthy controls. Change of AUC (ΔAUC) was positively associated with regulatory T cell frequency (ΔTreg, r = 0.539, p = 0.038) and negatively associated with central memory CD4
conclusionOfatumumab improved mLVs drainage in RRMS and was associated with a shift toward regulatory T cell phenotype. These findings suggest that modulation of meningeal lymphatics may contribute to the immunomodulatory effects of anti-CD20 therapy.
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