Cytotoxicity and Antioxidant Effects of Celastrus hindsii Benth. Leaf Extract
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Celastrus hindsii Benth et Hook. is known as a herbal medicine for the treatment of cancer. In this study we evaluated the cytotoxic and antioxidant effects of Celastrus hindsii Benth et Hook. leaf extract. Samples of Celastrus hindsii were extracted with 90 % ethanol and subsequently fractionated with n-hexane, ethyl acetate (EtOAc) and n-butanol (n-BuOH) solvents. To evaluate the cytotoxic effect, we performed MTT (3- (4,5 dimethylthiazol-2 - yl) - 2,5 - diphenyltetrazolium) assay on the three cell lines human liver Hep G2 (HB - 8065TM), lung LU-1 (HTB - 57TM), breast MCF-7 (HTB - 22TM). The antioxidant effect was evaluated by screening DPPH (2,2-diphenyl-1-picryhydrazyl) free radical assay. The results showed that the EtOAc fraction had the strongest cytoxicity effects on liver cancer cells and lung cancer cells with an IC50 value of 33,7 ± 1,5 mg/mL and 13,0 ± 0,5 mg/mL. The BuOH fraction showed a weaker effect on lung cancer cells with IC50 value of 64,0 ± 2,2 mg/mL. The antioxidant results indicated that the EtOAc fraction had the best antioxidant effect with IC50 value of 46,9 ± 2,5 µg/mL. The EtOH total extract also has strong antioxidant activity with IC50 value of 48,5 ± 2,3 µg/mL. Our study showed that Celastrus hindsii leaf extract has the strong cytotoxicity and antioxidant activities.
Celastrus hindsii Benth et Hook., cytotoxicity, MTT, antioxidant, DPPH.
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