ArticleArthritis & rheumatology (Hoboken, N.J.)2020
Polyfunctional, Proinflammatory, Tissue-Resident Memory Phenotype and Function of Synovial Interleukin-17A+CD8+ T Cells in Psoriatic Arthritis.
Article in Arthritis & rheumatology (Hoboken, N.J.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.
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Who cites it
79 citing papers in PubMed, 126 citations in OpenAlex.
- Understanding the Molecular Landscape of Alopecia Areata: Key Genes, Regulatory Networks, and Therapeutic Targets.Health science reports · 2026Article
- Does effective therapy of psoriasis prevent the development of psoriatic arthritis?EULAR rheumatology open · 2026Review
- Mechanistic Insights from Human Studies in Axial Spondyloarthritis: A T Cell Story.Current rheumatology reports · 2026Review
- Transition From Psoriasis to Psoriatic Arthritis is Characterized by Distinct Alterations in Peripheral Blood Tc17, Th17, and CD4Arthritis & rheumatology (Hoboken, N.J.) · 2026Article
- Gut microbiota dysbiosis in rheumatoid arthritis: mechanisms linking intestinal barrier dysfunction to synovial inflammation.Frontiers in immunology · 2026Review
- Evolving role of CD8Frontiers in immunology · 2026Review
- From IL-23/IL-17 to GM-CSF: how is the immuno-inflammatory continuum reshaped in spondyloarthritis?Frontiers in immunology · 2026Review
- Linking Skin and Joint Inflammation in Psoriatic Arthritis through Shared CD8Arthritis & rheumatology (Hoboken, N.J.) · 2026Article
- Tissue-Resident Memory T Cells in Rheumatoid Immune Diseases: Pathogenic Mechanisms and Therapeutic Strategies.Biomedicines · 2025Review
- Immune-cell profiling to guide stratification and treatment of patients with rheumatic diseases.Nature reviews. Rheumatology · 2025Review
- Single cell transcriptomics of human psoriasis and epidermal specific Ube2l3 deficient mice highlight CXCL16/CXCR6 involvement in psoriasis development.Nature communications · 2025Article
- Tildrakizumab as a Potential Option for Early Psoriatic Arthritis in Patients with Metabolic Comorbidities and Psoriasis: a Case Series.Dermatology practical & conceptual · 2025Article
- Comprehensive Profiling of Cytokines and Growth Factors: Pathogenic Roles and Clinical Applications in Autoimmune Diseases.International journal of molecular sciences · 2025Review
- Metabolic Stress Expands Polyfunctional, Proinflammatory ThArthritis & rheumatology (Hoboken, N.J.) · 2025Article
- Divergent gene signatures and neutrophil enrichment in lymph nodes of inflammatory arthritis patients.Arthritis research & therapy · 2025Article
- Antigen-driven T cell responses in rheumatic diseases: insights from T cell receptor repertoire studies.Nature reviews. Rheumatology · 2025Review
- Tissue-resident immune cells: from defining characteristics to roles in diseases.Signal transduction and targeted therapy · 2025Review
- Review
- The dual role of IL-17 in periodontitis regulating immunity and bone homeostasis.Frontiers in immunology · 2025Review
- The IL-23R and Its Genetic Variants: A Hitherto Unforeseen Bridge Between the Immune System and Cancer Development.Cancers · 2024Review
19 more citing papers are in PubMed but not listed here.
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveGenetic associations imply a role for CD8+ T cells and the interleukin-23 (IL-23)/IL-17 axis in psoriatic arthritis (PsA) and other spondyloarthritides (SpA). IL-17A+CD8+ (Tc17) T cells are enriched in the synovial fluid (SF) of patients with PsA, and IL-17A blockade is clinically efficacious in PsA/SpA. This study was undertaken to determine the immunophenotype, molecular profile, and function of synovial Tc17 cells in order to elucidate their role in PsA/SpA pathogenesis.
methodsPeripheral blood (PB) and SF mononuclear cells were isolated from patients with PsA or other types of SpA. Cells were phenotypically, transcriptionally, and functionally analyzed by flow cytometry (n = 6-18), T cell receptor β (TCRβ) sequencing (n = 3), RNA-Seq (n = 3), quantitative reverse transcriptase-polymerase chain reaction (n = 4), and Luminex or enzyme-linked immunosorbent assay (n = 4-16).
resultsIL-17A+CD8+ T cells were predominantly TCRαβ+ and their frequencies were increased in the SF versus the PB of patients with established PsA (P < 0.0001) or other SpA (P = 0.0009). TCRβ sequencing showed that these cells were polyclonal in PsA (median clonality 0.08), while RNA-Seq and deep immunophenotyping revealed that PsA synovial Tc17 cells had hallmarks of Th17 cells (RORC/IL23R/CCR6/CD161) and Tc1 cells (granzyme A/B). Synovial Tc17 cells showed a strong tissue-resident memory T (Trm) cell signature and secreted a range of proinflammatory cytokines. We identified CXCR6 as a marker for synovial Tc17 cells, and increased levels of CXCR6 ligand CXCL16 in PsA SF (P = 0.0005), which may contribute to their retention in the joint.
conclusionOur results identify synovial Tc17 cells as a polyclonal subset of Trm cells characterized by polyfunctional, proinflammatory mediator production and CXCR6 expression. The molecular signature and functional profiling of these cells may help explain how Tc17 cells can contribute to synovial inflammation and disease persistence in PsA and possibly other types of SpA.
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