Abstract:
Objective To investigate the effects of glutathione (GSH) on proliferation and biochemical function of primary hepatocyte in hybrid tilapia (Oreochromis niloticus×O. aureus).
Method Tilapia primary hepatocytes were cultured in cell culture medium with 0 or 10% fetal calf serum for 48 h. GSH was then added into the two kinds of cell culture medium to the final concentration of 0, 30, 100, 300 or 900 mg·L–1 respectively. Each concentration group had six replicates. The proliferation status of the primary hepatocyte, contents of insulin-like growth factor 1 (IGF-1), albumin and H2O2, as well as glutamate-oxaloacetate transaminase (GOT) and γ-glutamyl transpeptidase (γ-GT) activities of tilapia were detected after cultured for 24, 48 and 72 h, respectively.
Result GSH significantly increased the proliferation of primary hepatocyte, the contents of IGF-1 and albumin, and γ-GT activity in supernatant, while reduced H2O2 content and GOT activity(P<0.05). Such effects of GSH were more evident in the group without fetal calf serum compared to the group with 10% fetal calf serum.
Conclusion GSH could enhance the proliferation of primary hepatocyte and has the function of protecting liver in hybrid tilapia.