CXCR4 and diffuse large B-cell lymphoma: In particular, expression and functional alterations ofcannabinoid receptors (CNR1 and CNR2), purinergic receptor P2RY11,chemokine receptors (CXCR3, CXCR4, and CXCR5), sphingosine-1-phospatereceptors (S1PR1, S1PR2, and S1PR3), purinergic receptor GPR34, orestrogen receptor 1 (GPER1) have been reported in MCL, FL, DLBCL,and MZL.5