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© Research
Publication : Journal of clinical immunology

Juvenile Neuropsychiatric Systemic Lupus Erythematosus: Identification of Novel Central Neuroinflammation Biomarkers.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Journal of clinical immunology - 05 Dec 2022

Labouret M, Costi S, Bondet V, Trebossen V, Le Roux E, Ntorkou A, Bartoli S, Auvin S, Bader-Meunier B, Baudouin V, Corseri O, Dingulu G, Ducrocq C, Dumaine C, Elmaleh M, Fabien N, Faye A, Hau I, Hentgen V, Kwon T, Meinzer U, Ouldali N, Parmentier C, Pouletty M, Renaldo F, Savioz I, Rozenberg F, Frémond ML, Lepelley A, Rice GI, Seabra L, Benoist JF, Duffy D, Crow YJ, Ellul P, Melki I,

Link to Pubmed [PMID] – 36469191

Link to DOI – 10.1007/s10875-022-01407-1

J Clin Immunol 2022 Dec; ():

Juvenile systemic lupus erythematosus (j-SLE) is a rare chronic autoimmune disease affecting multiple organs. Ranging from minor features, such as headache or mild cognitive impairment, to serious and life-threatening presentations, j-neuropsychiatric SLE (j-NPSLE) is a therapeutic challenge. Thus, the diagnosis of NPSLE remains difficult, especially in pediatrics, with no specific biomarker of the disease yet validated.To identify central nervous system (CNS) disease biomarkers of j-NPSLE.A 5-year retrospective tertiary reference monocentric j-SLE study. A combination of standardized diagnostic criteria and multidisciplinary pediatric clinical expertise was combined to attribute NP involvement in the context of j-SLE. Neopterin and interferon-alpha (IFN-α) protein levels in cerebrospinal fluid (CSF) were assessed, together with routine biological and radiological investigations.Among 51 patients with j-SLE included, 39% presented with j-NPSLE. J-NPSLE was diagnosed at onset of j-SLE in 65% of patients. No specific routine biological or radiological marker of j-NPSLE was identified. However, CSF neopterin levels were significantly higher in active j-NPSLE with CNS involvement than in j-SLE alone (p = 0.0008). Neopterin and IFN-α protein levels in CSF were significantly higher at diagnosis of j-NPSLE with CNS involvement than after resolution of NP features (respectively p = 0.0015 and p = 0.0010) upon immunosuppressive treatment in all patients tested (n = 10). Both biomarkers correlated strongly with each other (Rs = 0.832, p < 0.0001, n = 23 paired samples).CSF IFN-α and neopterin constitute promising biomarkers useful in the diagnosis and monitoring of activity in j-NPSLE.

https://pubmed.ncbi.nlm.nih.gov/36469191