CXCR6 and diffuse large B-cell lymphoma: In our comprehensive chemokine receptor expression analysis, we also found that the expression profile of RS substantially differs from the expression profile of GCB-DLBCL, NGCB-DLBCL, and tFL, with a lower expression of CCR1, CCR5, CCR8, CXCR6, CXCR7, and CXCR3 in RS.