↑ P2X7R in SG, PBMC [109,110,113]ATP/P2X7R ↑ apoptosis of SGEC, NLRP3, IL-1β and IL-18 [111,112]P2X7R correlate with SG FS [109,110] and with MALT lymphoma [110]↑ P2Y2R in SG [118,119]. The gene discussed is IL18; the disease is MALT lymphoma.