To identify the potential purinergic receptors that were dysregulated in colitis, we first analyzed two Gene Expression Omnibus (GEO) datasets (GSE59071 and GSE53306) containing expression profile of actively inflamed mucosa from colitis patients, and one GEO dataset (GSE22307) containing expression profile of colon tissues from DSS-induced mouse colitis. The gene discussed is P2RY1; the disease is colitis.