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NK cell subsets define sustained remission in rheumatoid arthritis
File(s)
Author(s)
Coyle, Carl
Ma, Margaret
Abraham, Vann
Mahony, Christopher B
Steel, Kathryn
Type
Journal Article
Abstract
Rheumatoid arthritis (RA) is an immune-mediated, chronic inflammatory condition. With modern therapeutics and evidence-based management strategies, achieving sustained remission is increasingly common. To prevent complications associated with prolonged use of immunosuppressants, drug tapering or withdrawal is recommended. However, due to the lack of tools that define immunological remission, disease flares are frequent, highlighting the need for a more precision medicine–based approach. Utilizing high-dimensional phenotyping platforms, we set out to define peripheral blood immunological signatures of sustained remission in RA. We identified that CD8+CD57+KIR2DL1+ NK cells are associated with sustained remission. Functional studies uncovered an NK cell subset characterized by normal degranulation responses and reduced proinflammatory cytokine expression, which was elevated in sustained remission. Furthermore, flow cytometric analysis of NK cells from synovial fluid combined with interrogation of a publicly available single-cell RNA-Seq dataset of synovial tissue from active RA identified a deficiency of the phenotypic characteristics associated with this NK cell remission signature. In summary, we have uncovered an immune signature of RA remission associated with compositional changes in NK cell phenotype and function that has implications for understanding the effect of sustained remission on host immunity and distinct features that may define operational tolerance in RA.
Date Issued
2024-12-06
Date Acceptance
2024-10-11
Citation
JCI Insight, 2024, 9 (23)
URI
URL
DOI
ISSN
2379-3708
Publisher
American Society for Clinical investigation
Journal / Book Title
JCI Insight
Volume
9
Issue
23
Copyright Statement
© 2024, Coyle et al. This is an open access article published under the terms of the Creative Commons Attribution 4.0 International License.
License URL
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/39418106
PII: 182390
Subjects
HLA
INFECTION
KIR
Life Sciences & Biomedicine
Medicine, Research & Experimental
RECEPTORS
Research & Experimental Medicine
Science & Technology
VISUALIZATION
Publication Status
Published
Coverage Spatial
United States
Article Number
e182390
Date Publish Online
2024-10-17