Since significant association was found between Bcl-2 mRNA and protein levels (**P < 0.01), the Bcl-2 correlation with sensitivity to acadesine was confirmed at gene expression level by RT-PCR in MCL cell lines (n = 9) together with primary MCL cases (n = 11) (*P < 0.05; Table 1–2). Here, BCL2 is linked to mantle cell lymphoma.