Effect of Berberis Vulgaris fruit extract on alpha‐fetoprotein gene expression and chemical carcinogen metabolizing enzymes activities in hepatocarcinogenesis rats

Abstract
Objective: Cancer is the second cause of death worldwide, among them liver cancer
is the fifth most important malignancy. The aim of this study was to investigate
chemopreventive activity of Berberis vulgaris fruit extract in hepatocarcinogenesis
Sprague dawley rats.
Materials and Methods: Fourty-four Sprague dawley rats (6-8 weeks old, 150-
250g) were divided into normal and cancerous. The rats in cancerous groups
induced cancer by intraperitoneally injection of 200mg/kg diethylnitrosamine (DEN)
follow by acetyllaminofluorene (0.02%AAF) dissolved in corn oil. Animals in each
branch were randomly assigned to receive either no treatment or 25, 50 or 100
mg/kg of Berberis vulgaris fruit. The animals were sacrificed after 11 weeks of
treatment and evaluated for liver enzyme activities. In addition, Reversetranscription
polymerase chain reaction was performed to identify the expression of
genes encoding markers in hepatocytes (albumin, α-fetoprotein).
Results: The activities of GGT, GST and ALP between the Cancerous and Normal
groups were significantly different (P< 0.05). In cancerous groups treated with
Berberis vulgaris, the enzymes activities of GST, GGT and ALP were significantly
lower than control group (P< 0.05). RT-PCR as a very sensitive method did not show
gene expression of AFP in cancer groups treated with Berberis vulgaris fruit.
Conclusion: Berberis vulgaris fruit can reduce the activity of liver enzymes and
inhibit the gene expression of AFP in rats during hepatocarcinogenesis. These
results suggest the chemopreventive activity of Berberis vulgaris fruit against hepatocarcinogenesis in animal models