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  • Title: Inhibitory Activities of Butanol Fraction from Butea monosperma (Lam.) Taub. Bark Against Free Radicals, Genotoxins and Cancer Cells.
    Author: Kaur V, Kumar M, Kaur P, Kaur S, Kaur S.
    Journal: Chem Biodivers; 2017 Jun; 14(6):. PubMed ID: 28207992.
    Abstract:
    The present study was undertaken to investigate antioxidant, antigenotoxic, and antiproliferative activity of butanol fraction (Bmbu) from bark of medicinal plant Butea monosperma. Antioxidant potency of Bmbu was examined by various in vitro assays. It was also investigated for antigenotoxic activity using Escherichia coli. PQ37 employing SOS chromotest. Further, cytotoxic and apoptosis inducing activity of Bmbu was evaluated in MCF-7 breast cancer cells. Bmbu showed potent free radical scavenging ability in ABTS assay (IC50 56.70 μg/ml) and anti-lipid peroxidation ability (IC50 40.39 μg/ml). 4NQO and H2 O2 induced genotoxicity was suppressed by Bmbu in SOS chromotest by 74.26% and 82.02% respectively. It also inhibited the growth of MCF-7 cells with GI50 value of 158.71 μg/ml. Induction of apoptosis in MCF-7 cells by Bmbu treatment was deciphered using confocal microscopy, flow cytometry, and neutral comet assay. Bmbu treatment increased cell population in sub-G1 phase (69.6%) indicating apoptotic cells. Further, Bmbu treatment resulted in increased reactive oxygen species generation and decreased mitochondrial membrane potential indicating involvement of mitochondrial dependent pathway of apoptosis. HPLC profiling showed the presence of polyphenols such as ellagic acid, catechin, quercetin, and gallic acid as its major constituents. Consequently, it is suggested that the phytoconstituents from this plant may be further exploited for development of novel drug formulation with possible therapeutic implication.
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