WB validations of PDCD4 and RAD23B profiles. (A) WB results of PDCD4 (∼ 50 kDa) and RAD23B (60 kDa) expression in US and S samples from UM- and M-CLL cells. Actin bands were used as loading controls. (B) RAD23B and PDCD4 expression levels in US and S UM-CLL (n = 11), Mr-CLL (M-responder-CLL; n = 3), and M-CLL (n = 5) samples.