Mass Cytometry of CSF Identifies an MS-Associated B-cell Population.
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:
03 2021
03 2021
Historique:
received:
19
07
2020
accepted:
28
10
2020
entrez:
16
2
2021
pubmed:
17
2
2021
medline:
29
10
2021
Statut:
epublish
Résumé
To identify an MS-specific immune cell population by deep immune phenotyping and relate it to soluble signaling molecules in CSF. We analyzed surface expression of 22 markers in paired blood/CSF samples from 39 patients using mass cytometry (cytometry by time of flight). We also measured the concentrations of 296 signaling molecules in CSF using proximity extension assay. Results were analyzed using highly automated unsupervised algorithmic informatics. Mass cytometry objectively identified a B-cell population characterized by the expression of CD49d, CD69, CD27, CXCR3, and human leukocyte antigen (HLA)-DR as clearly associated with MS. Concentrations of the B cell-related factors, notably FCRL2, were increased in MS CSF, especially in early stages of the disease. The B-cell trophic factor B cell activating factor (BAFF) was decreased in MS. Proteins involved in neural plasticity were also reduced in MS. When analyzed without a priori assumptions, both the soluble and the cellular compartments of the CSF in MS were characterized by markers related to B cells, and the strongest candidate for an MS-specific cell type has a B-cell phenotype.
Identifiants
pubmed: 33589541
pii: 8/2/e943
doi: 10.1212/NXI.0000000000000943
pmc: PMC8057060
pii:
doi:
Substances chimiques
B-Cell Activating Factor
0
Biomarkers
0
TNFSF13B protein, human
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.
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