CXCR5 and diffuse large B-cell lymphoma: Strong CXCR5 expression was detected on B-NHL cell lines DOHH-2 and SC-1 (FL), SU-DHL4 and OCI-Ly7 (germinal center type (GC)B-DLBCL), and JeKo-1 (MCL) (Fig. 1a).