Two Broad Categories Overlapping With Rheumatoid Arthritis Observed in Synovial Biopsies from Patients With Juvenile Idiopathic Arthritis
Authors' conclusion
Our study indicates significant similarities between JIA and RA synovitis.
Study context
- Population
- Patients with juvenile idiopathic arthritis (JIA) undergoing synovial biopsy24 RNA sequencing (RNASeq), 28 immunohistochemistry (IHC) samples
- Comparison
- JIA synovial biopsies vs published early rheumatoid arthritis (RA) synovial biopsies
- Outcome
- Transcriptomic profiles and immune cell composition and distribution in JIA synovial biopsies
Methodological detailsRNA sequencing, multiplex fluorescence IHC, comparison with published early RA synovial biopsy series
- RNA sequencing
- Multiplex fluorescence IHC
- Comparison with published early RA synovial biopsy series
Main finding
As reported in the abstract
B and plasma cell signature the main driver of heterogeneity in JIA synovia (most variably expressed genes)
n = 339
Further findings
Association of synovial features with clinical parameters
- Synovial features not significantly associated with clinical parameters
Original publication
Two Broad Categories Overlapping With Rheumatoid Arthritis Observed in Synovial Biopsies from Patients With Juvenile Idiopathic Arthritis. Arthritis Rheumatol. Published 1 July 2024. doi:10.
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