ArticleJCI insight2026
Spatial transcriptomics reveals immune-stromal crosstalk within the synovium of patients with juvenile idiopathic arthritis.
Article in JCI insight, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Immune-mediated rheumatoid arthritis: from single-cell genomics to new therapies.Nature immunology · 2026Review
- Synovial Fluid Immune Cell Landscape in Juvenile Idiopathic Arthritis.European journal of immunology · 2026Article
- PhenoMapR: scalable mapping of sample phenotypes to single-cell, spatial, and bulk transcriptomics data.bioRxiv : the preprint server for biology · 2026Article
- Article
- From inflammation to malignancy: the dynamic evolution of cancer-associated fibroblasts in IBD-CRC.Neoplasia (New York, N.Y.) · 2026Review
- Spatial Transcriptomic Profiling Reveals Microenvironment-Dependent Immune Signatures in a Lyme Arthritis model.bioRxiv : the preprint server for biology · 2026Article
- Review
- Artemisinin-Related Therapeutic Strategies for Autoimmune Thyroiditis: Chemokine-Receptor Networks, Spatial Thyroid Biology, and Molecular Mechanisms.Drug design, development and therapy · 2026Review
- Evolving role of CD8Frontiers in immunology · 2026Review
- Novel insights into the biology of childhood arthritis- lessons learned from the synovium.Arthritis research & therapy · 2025Review
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9 authors.
Funding
Abstract
Juvenile idiopathic arthritis (JIA) is the most prevalent chronic inflammatory arthritis of childhood, yet the spatial organization in the synovium remains poorly understood. Here, we perform subcellular-resolution spatial transcriptomic profiling of synovial tissue from patients with active JIA. We identify diverse immune and stromal cell populations and reconstruct spatially defined cellular niches. Applying a newly developed spatial colocalization analysis pipeline, we uncover microanatomical structures, including endothelial-fibroblast interactions mediated by NOTCH signaling, and a CXCL9/CXCR3 signaling axis between inflammatory macrophages and CD8+ T cells, alongside the characterization of other resident macrophage subsets. We also detect and characterize tertiary lymphoid structures marked by CXCL13/CXCR5 and CCL19-mediated signaling from Tph cells and immunoregulatory DCs, analogous to those observed in other autoimmune diseases. Finally, comparative analysis with rheumatoid arthritis reveals JIA-enriched cell states, including NOTCH3+ and CXCL12+ sublining fibroblasts, suggesting potentially differential inflammatory programs in pediatric versus adult arthritis. These findings provide a spatially resolved molecular framework of JIA synovitis and introduce a generalizable computational pipeline for spatial colocalization analysis in tissue inflammation.
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