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Influence of ellagic acid on prostate cancer cell proliferation:A caspase-dependent pathway

Asian Pacific Journal of Tropical Medicine 2011年第7期4卷 550-555页

作者： arshi malik Sarah Afaq Mohammad Shahid Kafil Akhtar Abdullah Assiri Department of Clinical Biochemistry College of MedicineKing Khalid UniversityAbhaKingdom of Saudi Arabia Department of Microbiology Jawaharlal Nehru Medical CollegeAligarh Muslim UniversityAligarhIndia Department of Pathology Jawaharlal Nehru Medical CollegeAligarh Muslim UniversityAligarhIndia Interventional Cardiologist College of MedicineKing Khalid UniversityAbhaKingdom of Saudi Arabia

Objective:To evaluate the effect of allagic acid treatment on the cell viability of human prostate cancer ***:Ellagic acid(10-100 mol/L) treatment(48 h) of human prostate carcinoma PC3 cells was found to result in a dose-dependent inhibition of cell growth and apoptosis of PC3 cells as assessed by MTT assay,western *** cytometry and confocal ***:We observed that ellagic acid treatment of PC3 cells resulted in a dose dependent inhibition of cell growth/cell *** ellagic acid caused cell growth inhibition was found to be accompanied by induction of apoptosis,as assessed by the cleavage of poly (ADP-ribose) polymerase(PARP) and morphological ***,induction of apoptosis accompanied a decrease in the levels of antiapoptotic protein Bcl-2 and increase in proapoptotic protein *** shifting the Bax:Bcl-2 ratio in favor of *** acid treatment of PC3 cells was also found to result in significant activation of caspases,as shown by the dose dependent decrease in the protein expression of procaspase-3,-6.-8 and -*** ellagic acid-mediated induction of apoptosis was significantly(80%-90%) inhibited by the caspase inhibitor N-benzyloxycarbonyl-Val-Ala-Asp(OMe)-fluoromethylketone(Z-VAD-FMK).Thus these data suggested an essential role of caspases in ellagic acid-mediated apoptosis of PC3 ***:It is tempting to suggest that consumption of tropical pigmented fruits and vegetables could be an effective strategy to combat prostate cancer.

关键词： Ellagic acid Apoptosis Prostate cancer Caspases

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