1.Evaluation of anti-apoptotic activity of different dietary antioxidants in renal cell carcinoma against hydrogen peroxide.
Neeraj K GARG ; Sharad MANGAL ; Tejram SAHU ; Abhinav MEHTA ; Suresh P VYAS ; Rajeev K TYAGI
Asian Pacific Journal of Tropical Biomedicine 2011;1(1):57-63
<p>OBJECTIVETo evaluate the anti-apoptotic and radical scavenging activities of dietary phenolics, namely ascorbic acid,α-tocopherol acetate, citric acid, salicylic acid, and estimate H2O2-induced apoptosis in renal cell carcinoma cells.p><p>METHODSThe intracellular antioxidant potency of antioxidants was investigated. H2O2-induced apoptosis in RCC-26 was assayed with the following parameters: cell viability (% apoptosis), nucleosomal damage and DNA fragmentation, bcl-2 levels and flow cytometery analysis (ROS production evaluation).p><p>RESULTSThe anticancer properties of antioxidants such as ascorbic acid, α-tocopherol acetate, citric acid, salicylic acid with perdurable responses were investigated. It was observed that these antioxidants had protective effect (anti-apoptotic activity) against hydrogen peroxide (H2O2) in renal cell carcinoma (RCC-26) cell line.p><p>CONCLUSIONSThis study reveals and proves the anticancer properties. However, in cancer cell lines anti-apoptotic activity can indirectly reflect the cancer promoter activity through radicals scavenging, and significantly protect nucleus and bcl-2.p>
Antioxidants
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pharmacology
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Apoptosis
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drug effects
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Carcinoma, Renal Cell
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Cell Line, Tumor
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Cell Survival
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drug effects
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DNA Fragmentation
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drug effects
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Humans
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Hydrogen Peroxide
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toxicity
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Oxidative Stress
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drug effects
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Reactive Oxygen Species
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analysis
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metabolism
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Vitamins
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pharmacology