In vitro: |
J. Med. Plants Res., 2012,6(16):3199-206. | Evaluation of anti-apoptotic, anti-injury and antihepatitis B virus effects of isochlorogenic acid C in vitro[Reference: WebLink] | To study anti-hepatitis effect of isochlorogenic acid C from Laggera alata, anti-apoptotic and anti-injury
properties of test compound were evaluated using the D-galactosamine (D-GalN)-induced
apoptosis/injury model in human hepatocyte line HL-7702 cells. Hepatocyte apoptotic changes were
demonstrated by DNA ladder analysis and caspase-3 activation. Hepatocyte injury was assessed by cell
viability. Meanwhile, anti-hepatitis B virus (anti-HBV) effect of test compound was evaluated by the
HBsAg, HBeAg, HBV DNA, HBV covalently closed circular DNA (HBV cccDNA) and heme oxygenase-1
(HO-1) expressions in HBV-transfected HepG2.2.15 cells. The results showed that test compound at
concentrations of 10 to 100 μg/ml significantly reduced the caspase-3 and transformed growth factor β1
(TGFβ1) levels of the D-GalN-challenged hepatocytes. Also, test compound improved markedly cell
viability of the D-GalN-injured hepatocytes and produced a maximum protection rate of 47.28% at a
concentration of 100 g/ml. Furthermore, test compound significantly inhibited productions of HBsAg
and HBeAg. Its maximum inhibitory rates on the HBsAg and HBeAg expressions were 86.93 and
59.79%, respectively. In addition, test compound significantly induced the HO-1 expression of
HepG2.2.15 cells. This study verifies that isochlorogenic acid C possesses potent hepatoprotective and
anti-HBV effects. The anti-apoptotic and anti-injury effects of test compound could be achieved by its
anti-oxidative properties and interfering the caspase-3 and TGF-β1 expressions. The anti-HBV target of
test compound may mainly be at the downstream links of HBV replication process and is probably
associated with blocking translation step. Furthermore, HO-1 induction may contribute to anti-hepatitis
B effect of test compound. |
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