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Alcoholic Extract of Eclipta alba Shows In Vitro Antioxidant and Anticancer Activity without Exhibiting Toxicological Effects.

ABSTRACT: As per WHO estimates, 80% of people around the world use medicinal plants for the cure and prevention of various diseases including cancer owing to their easy availability and cost effectiveness. Eclipta alba has long been used in Ayurveda to treat liver diseases, eye ailments, and hair related disorders. The promising medicinal value of E. alba prompted us to study the antioxidant, nontoxic, and anticancer potential of its alcoholic extract. In the current study, we evaluated the in vitro cytotoxic and antioxidant effect of the alcoholic extract of Eclipta alba (AEEA) in multiple cancer cell lines along with control. We have also evaluated its effect on different in vivo toxicity parameters. Here, we found that AEEA was found to be most active in most of the cancer cell lines but it significantly induced apoptosis in human breast cancer cell lines by disrupting mitochondrial membrane potential and DNA damage. Moreover, AEEA treatment inhibited migration in both MCF 7 and MDA-MB-231 cells in a dose dependent manner. Further, AEEA possesses robust in vitro antioxidant activity along with high total phenolic and flavonoid contents. In summary, our results indicate that Eclipta alba has enormous potential in complementary and alternative medicine for the treatment of cancer.

SUBMITTER: Yadav NK

PROVIDER: S-EPMC5307245 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Alcoholic Extract of Eclipta alba Shows In Vitro Antioxidant and Anticancer Activity without Exhibiting Toxicological Effects.

Yadav Navneet Kumar NK Arya Rakesh Kumar RK Dev Kapil K Sharma Chetan C Hossain Zakir Z Meena Sanjeev S Arya K R KR Gayen J R JR Datta Dipak D Singh R K RK

Oxidative medicine and cellular longevity 20170131

As per WHO estimates, 80% of people around the world use medicinal plants for the cure and prevention of various diseases including cancer owing to their easy availability and cost effectiveness. Eclipta alba has long been used in Ayurveda to treat liver diseases, eye ailments, and hair related disorders. The promising medicinal value of E. alba prompted us to study the antioxidant, nontoxic, and anticancer potential of its alcoholic extract. In the current study, we evaluated the ...[more]

PMID: 28250894

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Project description:Phytochemicals have been shown to possess multiple bioactives and have been reported to showcase many medicinal effects. A similar kind of evaluation of phytoconstituents for their antimicrobial action has been reported, based on in vitro and in silico data. The goal of the research was to explore bioactive phytoconstituents of Eclipta alba leaf for antimicrobial activity. The antimicrobial activity was validated by both molecular docking and antimicrobial assay. Bioactive metabolites were identified using GC-MS. The antimicrobial and antimycobacterial activity of Eclipta alba leaves was investigated using the Kirby-Bauer well diffusion method and the rapid culture-MGIT™ DST method against a variety of human pathogens, as well as Mycobacterium tuberculosis (H37Rv) and Mycobacterium tuberculosis bacteria resistant to isoniazid and rifampicin. Eclipta alba's GC-MS studies confirmed the detection of 17 bioactive constituents. The extract demonstrates the highest antibacterial activity against Escherichia coli (sensitive), Pseudomonas aeruginosa (sensitive) and methicillin-resistant Staphylococcus aureus (MRSA), and Pseudomonas aeruginosa susceptible and MRSA (sensitive) with zone of inhibition of 27 mm, 24 mm, and 32 mm respectively. The extract showed no effect on Mycobacterium tuberculosis (H37Rv) and Mycobacterium tuberculosis bacteria resistant to isoniazid and rifampicin in antimycobacterial activity testing. Molecular docking investigation revealed that three compounds (phthalic acid, isobutyl octadecyl ester, hexadecanoic acid, 1(hydroxymethyl)1,2-ethanediylester, and 2,myristynoyl pantetheine) have generated the best results in terms of binding energies and significant interactions with key residues of target protein 3-hydroxydecanoyl-acyl carrier protein dehydratase (FabA) and confirm its activity as antimicrobial inhibitors. These two-dimensional plots show significant protein-ligand binding interactions (van der Waals interactions, hydrogen bond, alkyl, and Pi-alkyl interactions). ADMET (absorption, distribution, metabolism, excretion, and toxicity) results additionally support the drug-likeness characteristics of concluded potential compounds. The experimental and computational results demonstrated that methanolic extract of Eclipta alba leaves had antimicrobial effects for specific infections due to the presence of phytochemical compounds.

Project description:Ethnopharmacological relevanceEclipta alba, traditionally known as bhringraj, has been used in Ayurvedic medicine for more than 1000 years in India. It is used for the treatment of infective hepatitis, liver cirrhosis, liver enlargement and other ailments of liver and gall bladder in India. The aim of this study was to evaluate anti-hepatitis C virus activity present in the Eclipta alba extract, perform bioassay based fractionation and identify anti-HCV phytochemicals from the active fractions.Materials and methodsIdentification of active compounds was performed by bio-activity guided fractionation approach. Active isolates were separated by the combination of silica gel chromatography and preparative scale reverse phase HPLC. Eclipta alba extract and its isolates were examined for their ability to inhibit HCV replicase (HCV NS5B) activity in vitro and HCV replication in a cell culture system carrying replicating HCV subgenomic RNA replicon. The purified isolates were also examined for their binding affinity to HCV replicase by fluorescence quenching and their cytotoxicity by MTT assay.ResultsEclipta alba extract strongly inhibited RNA dependent RNA polymerase (RdRp) activity of HCV replicase in vitro. In cell culture system, it effectively inhibited HCV replication which resulted in reduced HCV RNA titer and translation level of viral proteins. Bioassay-based fractionations of the extracts and purification of anti-HCV phytochemicals present in the active fractions have identified three compounds, wedelolactone, luteolin, and apigenin. These compounds exhibited dose dependent inhibition of HCV replicase in vitro, and anti-HCV replication activity in the cell culture systemConclusionEclipta alba extract and phytochemicals isolated from active fractions display anti-HCV activity in vitro and in cell culture system. The standardized Eclipta alba extract or its isolates can be used as an effective alternative and complementary treatment against HCV.

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Alcoholic Extract of Eclipta alba Shows In Vitro Antioxidant and Anticancer Activity without Exhibiting Toxicological Effects.

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Alcoholic Extract of <i>Eclipta alba</i> Shows <i>In Vitro</i> Antioxidant and Anticancer Activity without Exhibiting Toxicological Effects.

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