Objective:To investigate whether bFGF regulate s cyclin A expression of Bel-7402cell line via PI3K/PKB pathway.Methods: 32 P incorporation assay.The expression of cyclin A-mRNA was assessed by RT-PCR.The expression of cyclin A protein was detected by Western blot.Cell cycle analysis was performed on a FACSan.Results:Both membrane and cytosol ac-tivi ty of PKB in Bel-7402cell treated with bFGF(25ng/ml)reached to the pe ak at10min.Cy-clin A mRNA level was up-regulated and peaking at8h(6.1f old induction).Corr...