| Antioxidant and cytotoxic potential of a new thienyl derivative from Tagetes erecta roots. | |
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MedLine Citation:
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PMID: 22775418 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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CONTEXT: The search for newer compounds against pathogenic species continues unabated due to drug resistance. Traditionally, Tagetes erecta Linn. (Compositae) has been used for the treatment of various parasitic and microbial diseases. OBJECTIVE: To evaluate the antioxidant activity of the ethanol extract of Tagetes erecta roots and its cytotoxicity against prostate and HeLa cancer cell lines followed by activity-guided isolation. MATERIALS AND METHODS: The antioxidant screening was carried out using diphenylpicrylhydrazyl (DPPH) radical scavenging assay with serial concentrations ranging from 2 to 100 µg/mL, and cytotoxicity was evaluated against prostate (PC-3) and HeLa cell lines using microculture tetrazolium test (MTT) assay with concentrations ranging from 500 to 1.89 µg/mL. Isolation of the ethanol extract was carried out using column chromatography whereby 21 isolates were obtained (T₁-T₂₁), and the most active isolate was subjected for characterization using ultraviolet (UV), infrared (IR), nuclear magnetic resonance (NMR), and mass spectroscopic techniques. RESULTS: The ethanol extract scavenged DPPH free radicals thereby exhibiting antioxidant activity with an IC₅₀ of 35.9 µg/mL. In addition, the extract conferred noticeable cytotoxicity against the HeLa (LD₅₀ of 164.28 µg/mL) and PC-3 cell lines (LD₅₀ of 407.3 µg/mL). Among all the isolates, T₃ showed antioxidant activity with IC₅₀ of 11.56 µg/mL and cytotoxicity with LD₅₀ of 12.5 µg/mL against HeLa and 30.25 µg/mL against PC-3 cell lines and was characterized as 2-ethynyl-5-(thiophen-2-yl) thiophene. Discussion: The new thienyl compound (T₃) exhibited profound antioxidant activity and cytotoxicity at relatively lower concentrations than the extract. CONCLUSION: The observations provide support for the ethnobotanical use of the plant. |
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Authors:
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Pankaj Gupta; Alka Gupta; Krati Agarwal; Priti Tomar; Saurabh Satija |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Pharmaceutical biology Volume: 50 ISSN: 1744-5116 ISO Abbreviation: Pharm Biol Publication Date: 2012 Aug |
Date Detail:
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Created Date: 2012-07-10 Completed Date: 2012-12-07 Revised Date: 2012-12-10 |
Medline Journal Info:
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Nlm Unique ID: 9812552 Medline TA: Pharm Biol Country: England |
Other Details:
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Languages: eng Pagination: 1013-8 Citation Subset: IM |
Affiliation:
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Department of Pharmacognosy and Phytochemistry, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, India. gupta.aiims@gmail.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Antineoplastic Agents, Phytogenic
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analysis,
chemistry,
isolation & purification,
pharmacology* Antioxidants / analysis, chemistry, isolation & purification, pharmacology* Cell Line, Tumor Cell Survival / drug effects Drug Discovery* Ethnopharmacology Female Free Radical Scavengers / analysis, chemistry, isolation & purification, pharmacology HeLa Cells Humans India Inhibitory Concentration 50 Male Molecular Structure Plant Extracts / chemistry, isolation & purification, pharmacology Plant Roots / chemistry Prostatic Neoplasms / drug therapy* Tagetes / chemistry* Thiophenes / analysis, chemistry, isolation & purification, pharmacology* Uterine Cervical Neoplasms / drug therapy* |
| Chemical | |
Reg. No./Substance:
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0/2-ethynyl-5-(thiophen-2-yl)thiophene; 0/Antineoplastic Agents, Phytogenic; 0/Antioxidants; 0/Free Radical Scavengers; 0/Plant Extracts; 0/Thiophenes |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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