ADRB2 and Epstein-Barr virus infection: Sympathetic nerves promote tumor growth through β‐adrenergic receptors (ADRBs), which are widely expressed in both normal and cancerous tissues.[36] Our results indicated that DLBCL cells and tumors mainly express β2‐adrenergic receptors (β2ARs) and β3ARs, with β2AR levels increasing after EBV infection (Figure6A–D).