Smac/Diablo mRNA expression in cervical cancer patients. Upper panel: RT-PCR analysis of Smac/Diablo mRNA. To the left molecular weight marker (100 bp ladder, Invitrogen). Clinical stage is showed at the top of the panel: C: control samples, 1, 2 and 3, clinical stages. Lower panel: RT-PCR of GAPDH, used as a load control.