Sulforaphane increased transcript levels of cyclin D2. LnCap cells were treated with SFN (15 and 30 μM) for 24 h. RNA was extracted and cDNA synthesized for qRT-PCR. SFN increased transcript levels of cyclin D2 compared with vehicle (DMSO). Values are fold change of gene copy numbers normalized to GAPDH and compared to vehicle, and represent means ± SEM, n = 3. P values represent treatment values compared to vehicle.