Single-cell eQTL Mendelian randomization reveals the monocyte-associated PRKCB-CTSL axis as a candidate regulatory pathway and potential therapeutic target in rheumatoid arthritis.
OBJECTIVES Rheumatoid arthritis (RA) involves persistent immune dysregulation, but cell-specific genetically regulated pathways remain unclear. We integrated cell-specific genetic and multi-omics evidence to prioritize candidate regulatory pathways. METHODS cis-eQTLs from 17 immune-cell populations were integrated wi...