F11R and diffuse large B-cell lymphoma: JAM-A was highly expressed in DLBCL, when compared to reactive hyperplasia (N = 20) (gene expression, 3.7 ± 0.5 vs 1.1 ± 0.5, P = 0.0300, protein expression, 1501.0 ± 158.3 vs 640.0 ± 140.4, P = 0.0196, Fig. 1A,B and Supplementary Figure S1).