Alangium chinense (Lour.) Harms Leaves with Anti-inflammatory, Antioxidant Property: in vitro and in silico Study

Abstract

The present investigation aimed to find the in vitro antioxidant and anti-inflammatory potential of fractions of methanol extract of Alangium chinense (Lour.) Harms leaves followed by isolation and identification bioactive molecule and evaluate its possible mechanism through in silico study. A methanol extract of Alangium chinense (Lour.) Harms leaves subjected for chromatographic fractionation and pure isolates (F1-F8) were evaluated for their in vitro anti-inflammatory activity using albumin denaturation inhibition assay and in vitro antioxidant activity. Fraction F4 showed highest in vitro anti-inflammatory activity (IC50 = 70.02 μg/mL), whereas fractions F3, F4, F7 showed better in vitro antioxidant activity compare to other fractions. F4 fraction was screened for its tentative structure using FTIR, 1H and 13C NMR. The spectral analysis showed that the fraction F4 has a tentative structure of olean 19-ene-1yl-acetate. The molecular docking studies showed that test ligand significantly interact with different key active sites of amino acids and thus confirm possible COX-2 inhibitory activity of fraction F4. In vitro and in silico study confirmed the isolation of possible anti-inflammatory from Alangium chinense (Lour.) Harms leaves, which may further used as lead to a development of a new therapeutic agent.