What type of study is this?

This is a Bulk RNA-sequencing study (also classified as: Observational).

Transcriptomic profiling of Sjögren’s disease salivary glands identifies signatures associated with both follicular and extrafollicular responses linked to rheumatoid factor and anti-La/SSB seropositivity

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Transcriptomic profiling uncovers distinct salivary gland responses in Sjögren's disease, indicating potential biomarkers and lymphoma risk factors.

Distinct transcriptomic signatures in salivary glands were validated, linking Sjögren's disease with rheumatoid factor positivity.
Analysis revealed significant gene expression differences between Sjögren's disease and sicca, particularly related to lymphocytic infiltrates.
Principal component analysis showed correlation of gene expression variability associated with rheumatoid factor-seropositivity exceeding other factors.
Findings indicate both follicular and extrafollicular responses drive autoreactive B-cell selection in Sjögren's disease salivary glands.

Pontarini et al. (2025) studied this question.

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Transcriptomic profiling uncovers distinct salivary gland responses in Sjögren's disease, indicating potential biomarkers and lymphoma risk factors.