[Effects of lingqijuangan capsule medicated serum on apoptosis of activated rat hepatic stellate cells].

OBJECTIVE

To investigate the effects of LingQiJuanGan Capsule medicated serum on the apoptosis of and the expression of Bcl-2/Bax in hepatic stellate cell-T6 (HSC-T6) activated by platelet-derived growth factor (PDGF).

METHODS

Preparation of drug-medicated serum. 30 SD rats were randomly divided into three groups. Serum was obtained from the SD rats administrated intragastricly with saline (10 mL/kg, group A), Fufang Biejia Ruangan Tablet solution (1.5 g/kg, group B) and LingQiJuanGan Capsule solution respectively (4.25 g/kg, group C). Detection of cell apoptosis and the expression of Bcl-2/Bax. HSC-T6 cells were activated by 10 ng/mL PDGF and incubated with drug-medicated serum at 200 mL/L. Cell apoptosis and the expression of Bcl-2/Bax were measured by flow cytometry at 0, 12, 24 and 48 h.

RESULTS

Significantly higher apoptotic rates of HSC-T6 in group B and group C were detected at 12, 24, 48 h compared with that of group A (P < 0.05), wheraus no significant difference was found between group B and group C (P > 0.05). With increase of exposure time, the apoptotic rates of HSC-T6 in group B and group C increased (P < 0.05). The levels of Bcl-2 expression in HSC-T6 in group B and C were lower than that of group A (P < 0.05) at 12, 24, 48 h (No significant difference between group B and group C, P > 0.05). The expression level of Bcl-2 decreased with increased exposure time (P > 0.05) in both group B and group C. However, no such trend was observed in group A (P > 0.05). In both group B and group C, the expression level of Bax increased in a time-dependent manner.

CONCLUSION

LingQiJuanGan Capsule can induce apoptosis of PDGF activated HSC-T6 and inhibit hepatic fibrosis in a time-dependent manner by influencing the expression of Bcl-2/Bax.