Document Detail

Apoptotic effects of resveratrol, a grape polyphenol, on imatinib-sensitive and resistant K562 chronic myeloid leukemia cells.
MedLine Citation:
PMID:  22753725     Owner:  NLM     Status:  MEDLINE    
AIM: To examine the antiproliferative and apoptotic effects of resveratrol on imatinib-sensitive and imatinib-resistant K562 chronic myeloid leukemia cells.
MATERIALS AND METHODS: Antiproliferative effects of resveratrol were determined by the 3-Bis[2-methoxy-4-nitro-5-sulphophenyl]-2H-tetrazolium-5-carboxanilide inner salt (XTT) cell proliferation assay. Apoptotic effects of resveratrol on sensitive K562 and resistant K562/IMA-3 cells were determined through changes in caspase-3 activity, loss of mitochondrial membrane potential (MMP), and apoptosis by annexin V-(FITC).
RESULTS: The concentrations of resveratrol that inhibited cell growth by 50% (IC(50)) were calculated as 85 and 122 μM for K562 and K562/IMA-3 cells, respectively. There were 1.91-, 7.42- and 14.73-fold increases in loss of MMP in K562 cells treated with 10, 50, and 100 μM resveratrol, respectively. The same concentrations of resveratrol resulted in 2.21-, 3.30- and 7.65-fold increases in loss of MMP in K562/IMA-3 cells. Caspase-3 activity increased 1.04-, 2.77- and 4.8-fold in K562 and 1.02-, 1.41- and 3.46-fold in K562/IMA-3 cells in response to the same concentrations of resveratrol, respectively. Apoptosis was induced in 58.7%- and 43.3% of K562 and K562/IMA-3 cells, respectively, in response to 100 μM resveratrol.
CONCLUSION: Taken together these results may suggest potential use of resveratrol in CML, as well as in patients with primary and/or acquired resistance to imatinib.
Geylani Can; Zeynep Cakir; Melis Kartal; Ufuk Gunduz; Yusuf Baran
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Anticancer research     Volume:  32     ISSN:  1791-7530     ISO Abbreviation:  Anticancer Res.     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-07-03     Completed Date:  2012-10-08     Revised Date:  2013-06-03    
Medline Journal Info:
Nlm Unique ID:  8102988     Medline TA:  Anticancer Res     Country:  Greece    
Other Details:
Languages:  eng     Pagination:  2673-8     Citation Subset:  IM    
Department of Molecular Biology and Genetics, Izmir Institute of Technology, Faculty of Science, Gulbahce Campus, 35430 Urla, Izmir, Turkey.
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MeSH Terms
Antineoplastic Agents, Phytogenic / pharmacology*
Apoptosis / drug effects*
Caspase 7 / metabolism
Cell Growth Processes / drug effects
Dose-Response Relationship, Drug
Drug Resistance, Neoplasm
K562 Cells
Leukemia, Myelogenous, Chronic, BCR-ABL Positive / drug therapy*,  pathology
Membrane Potential, Mitochondrial / drug effects
Piperazines / pharmacology*
Pyrimidines / pharmacology*
Stilbenes / pharmacology*
Reg. No./Substance:
0/Antineoplastic Agents, Phytogenic; 0/Piperazines; 0/Pyrimidines; 0/Stilbenes; BKJ8M8G5HI/imatinib; EC 3.4.22.-/Caspase 7; Q369O8926L/resveratrol

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