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Neurofilament light and heavy subunits compared as therapeutic biomarkers in multiple sclerosis

Artikel i vetenskaplig tidskrift
Författare J Kuhle
Clas Malmeström
Markus Axelsson
K Plattner
O Yaldizli
T Derfuss
G Giovannoni
L Kappos
Jan Lycke
Publicerad i Acta neurologica Scandinavica
Volym 128
Nummer/häfte 6
Sidor e33-6
ISSN 1600-0404
Publiceringsår 2013
Publicerad vid Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering
Sidor e33-6
Språk en
Länkar dx.doi.org/10.1111/ane.12151
www.ncbi.nlm.nih.gov/entrez/query.f...
Ämnesord Adult, Age Factors, Antibodies, Monoclonal, Humanized, therapeutic use, Biomarkers, cerebrospinal fluid, Disability Evaluation, Female, Humans, Male, Multiple Sclerosis, cerebrospinal fluid, drug therapy, Natalizumab, Neurofilament Proteins, cerebrospinal fluid, Statistics, Nonparametric
Ämneskategorier Neurovetenskaper

Sammanfattning

Neurofilaments are promising biomarkers in multiple sclerosis (MS) and increased levels in cerebrospinal fluid (CSF) indicate axonal damage or degeneration. In a previous study, neurofilament light chain (NfL) levels in CSF of relapsing remitting (RR) patients with MS were normalized by natalizumab treatment.We compared the coherence between NfL and neurofilament heavy chain (NfH(SMI) (35) ) levels in longitudinal CSF samples in a subset of these patients.In 30 patients with RRMS, CSF was obtained prior to and following 12 months of natalizumab treatment. NfH(SMI) (35) was measured by an electrochemiluminescence-based immunoassay. NfL levels were determined previously by the UmanDiagnostics NF-light(®) assay.NfH(SMI) (35) decreased in 73.3% and NfL in 90% of the patients following natalizumab treatment (32.4 vs 27.4 pg/ml, P = 0.002 and 820 vs 375 pg/ml, P < 0.0001). Patients experiencing a relapse showed higher NfH(SMI) (35) levels compared with patients in remission (47.7 vs 27.6 pg/ml, n = 8, P = 0.001). This difference was less obvious for NfL (1055 vs 725 pg/ml, P = 0.256). In patients in remission, NfL levels were lower following natalizumab treatment (830 vs 365 pg/ml, n = 20, P = 0.0002), whereas the same comparison failed significance for NfH(SMI) (35) (28.3 vs 26.9 pg/ml, P = 0.086).We confirm previous findings, indicating reduced axonal damage under natalizumab treatment by measuring NfH(SMI) (35) , using an assay with independent methodology. In comparison with NfH(SMI) (35) , NfL changes were more pronounced and the treatment effect also included patients in remission. Our results suggest that NfL is superior over NfH(SMI) (35) as therapeutic biomarker and is a promising candidate to measure neuroaxonal damage in MS treatment trials.

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