Cytotoxicity and Reactive Oxygen Species Related Mechanism for Two Benzofuran Derivatives on HepG2 Cells
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Cytotoxicity and Reactive Oxygen Species Related Mechanism for Two Benzofuran Derivatives on HepG2 Cells
Chinese Journal of Experimental Traditional Medical FormulaeVol. 16, Issue 9, Pages: 233(2010)
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Published:2010
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Cytotoxicity and Reactive Oxygen Species Related Mechanism for Two Benzofuran Derivatives on HepG2 Cells[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(9): 233.
DOI:
Cytotoxicity and Reactive Oxygen Species Related Mechanism for Two Benzofuran Derivatives on HepG2 Cells[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(9): 233.DOI:
Cytotoxicity and Reactive Oxygen Species Related Mechanism for Two Benzofuran Derivatives on HepG2 Cells
HepG2细胞过氧化氢酶活力分别从对照组的(17.2±1.7)U ·mg-1Pr.下降到(12.8±0.4)和(6.4±0.1)U ·mg-1Pr.;L02细胞过氧化氢酶活力分别从对照组的(17.7±1.2) U ·mg-1Pr.下降到(14.3±1.5) 和(8.6±0.5)U ·mg-1Pr.;HepG2过氧化氢酶活力降低幅度大于L02。 结论 :二化合物对HepG2的毒性和活性氧的增幅均大于L02
同时HepG2过氧化氢酶活力降幅也大于LO2。据此推测二化合物细胞毒性与活性氧有关。
Abstract
Purpose: This study was to evaluate the effect of two benzofuran derivatives on human liver hepatocellular carcinoma cells HepG2 and human hepatic L02 cells in vitro . Methods: 5
6- dimethoxy-2-isopropenyl-benzofuran (1) and 5-acetyl-6-methoxy-2-isopropenyl-benzofuran (2) were isolated from Ligularia veitchiana (Hemsl.) Greenm. Trypan blue exclusion staining
DCFH-DA fluorescence spectrophotometry
and ammonium molybdate colorimetric assay were used to evaluate cytotoxicity
reactive oxygen species (ROS) generation
and catalase activity respectively. Results: The results showed that IC50 of compound 1 and 2 on L02 cells were (171.2 ± 3.3) μg · mL-1 and (79.0 ± 4.1) μg · mL-1
higher than that on HepG2
(84.2 ± 6.5) μg · mL-1 and (65.2 ± 1.9) μg · mL-1
exhibited more potent cytotoxic effect on tumor cells. After treated with the half inhibitory concentration (IC50) of compound 1 and 2 for 48 hours
ROS generated in HepG2 cells were 1.6 and 3.2 folds to the control group
and 1.2 and 1.8 folds in L02 cells respectively. Higher ROS generations in HepG2 cells than L02 were found. The catalase activity decreased from the control group (17.2±1.7) U ·mg-1Pr. to (12.8±0.4) and (6.4±0.1) U ·mg-1Pr. after treated with compound 1 and 2 in HepG2 cell respectively
and decreased from the control group (17.7±1.2) U ·mg-1Pr.to (14.3±1.5) and (8.6±0.5) U ·mg-1Pr. in L02 cells. Higher catalase activity reduced in HepG2 cells than L02. Conclusion: Based on the above results on cytotoxicity and ROS generation in HepG2 and L02
we supposed that the mechanism of the cytotoxicity for these two benzofuran deravatives may relate to ROS theory.
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