Anti-inflammatory Activity of Quercitrin on Hypoxia-induced EA.hy926

The evidence support the existence of oxygen deprivation involved in pregnancy disorder or preeclampsia. The intensive hypoxia also regulates production of placental pro-inflammatory cytokines. Quercitrin belongs to flavonoid group is known to have antioxidant and anti-inflammatory activity. This study aims to determine the potential of Quercitrin as anti-inflammatory in hypoxia-induced EA.hy926 as preeclampsia model. The cytotoxic assay of Quercitrin against EA.hy926 was conducted using MTS (3-4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium). The data were analyzed using SPSS ver 20.0 software. One-way analysis of variance (ANOVA) was conducted, followed Tukey HSD post-hoc test and p<0.05 was considered to be significant. The anti-inflammatory potential of Quercitrin (25 and 6.25 μg/ml) toward hypoxia-induced EA.hy926 was determined using ELISA to measure IL-10 and TNF-α. Quercitrin (3.13-25 μg/ml) were nontoxic to the EA.hy926 cells. Quercitrin (25 and 6.25 μg/ml) were capable to reduce TNF-α compared to positive control (2% O2 hypoxia-induced cells) but no significant increase in IL-10. Our study suggests that quercitrin possess anti-inflammatory properties through suppression of TNF-α in hypoxia-induced EA.hy926 cells.