FASN and rheumatoid arthritis: To assess the clinical significance of FASN in RA, we conducted comprehensive analyses using published datasets of single‐cell sequencing (SDY998, GSE246416, and GSE200815) downloaded from the ImmPort and GEO database.[23] We aimed to determine whether FASN gene transcription was elevated in RA‐FLS by comparing its expression in curated and reannotated CELLxGENE single‐cell human cell atlas data.