Neurofilament light chain and oligoclonal bands are prognostic biomarkers in radiologically isolated syndrome

The prognostic role of cerebrospinal fluid biomarkers in patients with incidental radiological findings of white matter abnormalities or radiologically isolated syndromes (RIS) has yet to be defined. Matute-Blanch et al. report that RIS patients with oligoclonal bands and high neurofilament light ch...

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Published in:	Brain (London, England : 1878) England : 1878), 2018-04, Vol.141 (4), p.1085-1093
Main Authors:	Matute-Blanch, Clara, Villar, Luisa M, Álvarez-Cermeño, José C, Rejdak, Konrad, Evdoshenko, Evgeniy, Makshakov, Gleb, Nazarov, Vladimir, Lapin, Sergey, Midaglia, Luciana, Vidal-Jordana, Angela, Drulovic, Jelena, García-Merino, Antonio, Sánchez-López, Antonio J, Havrdova, Eva, Saiz, Albert, Llufriu, Sara, Alvarez-Lafuente, Roberto, Schroeder, Ina, Zettl, Uwe K, Galimberti, Daniela, Ramió-Torrentà, Lluís, Robles, René, Quintana, Ester, Hegen, Harald, Deisenhammer, Florian, Río, Jordi, Tintoré, Mar, Sánchez, Alex, Montalban, Xavier, Comabella, Manuel
Format:	Article
Language:	eng
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Summary:	The prognostic role of cerebrospinal fluid biomarkers in patients with incidental radiological findings of white matter abnormalities or radiologically isolated syndromes (RIS) has yet to be defined. Matute-Blanch et al. report that RIS patients with oligoclonal bands and high neurofilament light chain levels have increased risk of clinical conversion. Abstract The prognostic role of cerebrospinal fluid molecular biomarkers determined in early pathogenic stages of multiple sclerosis has yet to be defined. In the present study, we aimed to investigate the prognostic value of chitinase 3 like 1 (CHI3L1), neurofilament light chain, and oligoclonal bands for conversion to clinically isolated syndrome and to multiple sclerosis in 75 patients with radiologically isolated syndrome. Cerebrospinal fluid levels of CHI3L1 and neurofilament light chain were measured by enzyme-linked immunosorbent assay. Uni- and multivariable Cox regression models including as covariates age at diagnosis of radiologically isolated syndrome, number of brain lesions, sex and treatment were used to investigate associations between cerebrospinal fluid CHI3L1 and neurofilament light chain levels and time to conversion to clinically isolated syndrome and multiple sclerosis. Neurofilament light chain levels and oligoclonal bands were independent risk factors for the development of clinically isolated syndrome (hazard ratio = 1.02, P = 0.019, and hazard ratio = 14.7, P = 0.012, respectively) and multiple sclerosis (hazard ratio = 1.03, P = 0.003, and hazard ratio = 8.9, P = 0.046, respectively). The best cut-off to classify cerebrospinal fluid neurofilament light chain levels into high and low was 619 ng/l, and high neurofilament light chain levels were associated with a trend to shorter time to clinically isolated syndrome (P = 0.079) and significant shorter time to multiple sclerosis (P = 0.017). Similarly, patients with radiologically isolated syndrome presenting positive oligoclonal bands converted faster to clinically isolated syndrome and multiple sclerosis (P = 0.005 and P = 0.008, respectively). The effects of high neurofilament light chain levels shortening time to clinically isolated syndrome and multiple sclerosis were more pronounced in radiologically isolated syndrome patients with ≥37 years compared to younger patients. Cerebrospinal fluid CHI3L1 levels did not influence conversion to clinically isolated syndrome and multiple sclerosis in radiologically isolated syndrome patient
ISSN:	0006-8950 1460-2156