Changes in serum neurofilament light chain levels following narrowband ultraviolet B phototherapy in clinically isolated syndrome
Date
2022
Authors
Fabis-Pedrini, Marzena J
Kuhle, Jens
Roberts, Katherine M. A
Trend, Stephanie
Jones, Anderson P
Maceski, Aleksandra
Carroll, William M
Lucas, Robyn
Mastaglia, Frank L
Hart, Prue H
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Abstract
Objective: To determine whether serum neurofilament light chain (sNfL) levels are suppressed in patients with the clinically isolated syndrome (CIS) following narrowband ultraviolet B phototherapy (UVB-PT). Methods: sNfL levels were measured using a sensitive single-molecule array assay at baseline and up to 12 months in 17 patients with CIS, 10 of whom received UVB-PT, and were compared with healthy control (HC) and early relapsing remitting multiple sclerosis (RRMS) group. sNfL levels were correlated with magnetic resonance imaging total lesion volume (LV) determined using icobrain version 4.4.1 and with clinical outcomes. Results: Baseline median sNfL levels were significantly higher in the CIS (20.6 pg/mL, interquartile range [IQR] 13.7–161.4) and RRMS groups (36.6 pg/ml [IQR] 16.2–212.2) than in HC (10.7 pg/ml [IQR] 4.9–21.5) (p =.012 and p =.0002, respectively), and were strongly correlated with T2 and T1 LV at 12 months (r =.800; p =.014 and r =.833; p =.008, respectively) in the CIS group. Analysis of changes in sNfL levels over time in the CIS group showed a significant cumulative suppressive effect of UVB-PT in the first 3 months (UVB-PT −10.6% vs non-UVB-PT +58.3%; p =.04) following which the levels in the two groups converged and continued to fall. Conclusions: Our findings provide the basis for further studies to determine the utility of sNfL levels as a marker of neuro-axonal damage in CIS and early MS and for assessing the efficacy of new therapeutic interventions such as UVB-PT.
Description
Keywords
clinically isolated syndrome, lesion volume, multiple sclerosis, neurofilament light chain, ultraviolet B
Citation
Collections
Source
Brain and Behavior
Type
Journal article
Book Title
Entity type
Access Statement
Open Access
License Rights
Creative Commons Attribution 4.0 International License