Fig. 1

a Semaphorin 4D (Sema4D) expression (ng/ml) in RPMI+FBS, HS5 stromal cell line, ovarian cancer, and multiple myeloma cell lines. b Plexin-B1 expression (ng/ml) in RPMI + FBS, HS5 stromal cell line, ovarian cancer, and multiple myeloma cell lines (p = 0.008)