Laquinimod dampens IL-1β signaling and Th17-polarizing capacity of monocytes in patients with MS.
Journal
Neurology(R) neuroimmunology & neuroinflammation
ISSN: 2332-7812
Titre abrégé: Neurol Neuroimmunol Neuroinflamm
Pays: United States
ID NLM: 101636388
Informations de publication
Date de publication:
01 2021
01 2021
Historique:
received:
11
05
2020
accepted:
23
09
2020
entrez:
18
11
2020
pubmed:
19
11
2020
medline:
13
10
2021
Statut:
epublish
Résumé
To assess the impact of laquinimod treatment on monocytes and to investigate the underlying immunomodulatory mechanisms in MS. In this cross-sectional study, we performed in vivo and in vitro analyses of cluster of differentiation (CD14 Laquinimod did not alter the frequency or viability of circulating monocytes, but led to an upregulation of CD86 expression. LPS-stimulated monocytes of laquinimod-treated patients with MS secreted less IL-1β following a downregulation of IL-1β gene expression. Phosphorylation levels of the NF-κB p65 subunit were reduced after laquinimod treatment, indicating a laquinimod-associated inhibition of the NF-κB pathway. T cells primed with laquinimod-treated monocytes differentiated significantly less into IL-17A-producing T helper (Th)-17 cells. Our findings suggest that inhibited NF-κB signaling and downregulation of IL-1β expression in monocytes contributes to the immunomodulatory effects of laquinimod and that the impairment of Th17 polarization might mediate its disease-modifying activity in MS.
Identifiants
pubmed: 33203651
pii: 8/1/e908
doi: 10.1212/NXI.0000000000000908
pmc: PMC7676421
pii:
doi:
Substances chimiques
IL1B protein, human
0
Interleukin-1beta
0
Quinolones
0
laquinimod
908SY76S4G
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.
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