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Ethyl acetate extract and its major constituent, isorhamnetin 3-O-rutinoside, from Nitraria retusa leaves, promote apoptosis of human myelogenous erythroleukaemia cells.
MedLine Citation:
PMID:  21951288     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objective:  Fractionation of ethyl acetate extract (EA) obtained from Nitraria retusa leaves was assessed using different methods of chromatography, and isorhamnetin3-O-rutinoside (I3-O-R) was isolated from this extract. Its structure was determined using data obtained from (1) H and (13) C NMR spectra, as well as by various correlation experiments (COSY, HMQC and HMBC). Both EA extract and I3-O-R were investigated for their ability to induce apoptosis in human chronic myelogenous erythroleukaemia cells (K562). Materials and methods:  Apoptosis of cells from the K562 line was detected by DNA fragmentation, PARP cleavage and by evaluating activities of caspases 3 and 8. Results:  Apoptosis, revealed by DNA fragmentation and PARP cleavage, was observed after 48-h incubation of these human myelogenous erythroleukaemia cells (K562), with the tested products. Likewise, caspase 3 and caspase 8 activities were induced in the presence of the EA extract and I3-O-R after 48 h of incubation. Conclusion:  Our results strongly suggest the involvement of the extrinsic pathway of apoptosis in cells treated by both the original EA extract and its major component, I3-O-R.
Authors:
J Boubaker; W Bhouri; M Ben Sghaier; K Ghedira; M G Dijoux Franca; L Chekir-Ghedira
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cell proliferation     Volume:  44     ISSN:  1365-2184     ISO Abbreviation:  Cell Prolif.     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-09-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9105195     Medline TA:  Cell Prolif     Country:  England    
Other Details:
Languages:  eng     Pagination:  453-61     Citation Subset:  IM    
Copyright Information:
© 2011 Blackwell Publishing Ltd.
Affiliation:
Laboratory of Cellular and Molecular Biology, Faculty of Dental Medicine, University of Monastir, Monastir, Tunisia Unity of Pharmacognosy/ Molecular Biology, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia Laboratory of Botanic, Pharmacognosy and Phytotherapy, Microbial Ecology, Institute of Pharmaceutical and Biological Sciences, University Claude Bernard, Lyon Cedex, France.
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