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Induction of apoptosis in human lymphoblastoid cells by kaempferol 3-O-β-isorhamninoside and rhamnocitrin 3-O-β-isorhamninoside from Rhamnus alaternus L. (Rhamnaceae).
MedLine Citation:
PMID:  21535269     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objective:  Kaempferol 3-O-β-isorhamninoside (K3O-ir) and rhamnocitrin 3-O-β-isorhamninoside (R3O-ir) from Rhamnus alaternus L leaves are investigated for their ability to induce apoptosis in human lymphoblastoid cells. We have attempted to characterize apoptotic pathway activated by these two flavonoids. Material and methods:  Apoptosis of the human TK6 lymphoblastoid cell line was detected by DNA fragmentation, PARP cleavage and by evaluating caspase activity. Results:  Apoptosis was observed after 24- and 48-h incubation of the cells with the tested compounds. DNA fragmentation was observed after treatment with flavonoids; this was confirmed by demonstration of PARP cleavage. Caspase-3 and caspase-8 activities were induced by both K3O-ir and R3O-ir flavonoids showing highest activity with compound concentration of 400 μg/ml. Conclusion:  We have demonstrated that K3O-ir and R3O-ir induce apoptosis in human lymphoblastoid cells by the extrinsic pathway of apoptosis.
Authors:
W Bhouri; I Bouhlel; J Boubaker; S Kilani; K Ghedira; 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 Jun 
Date Detail:
Created Date:  2011-05-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9105195     Medline TA:  Cell Prolif     Country:  England    
Other Details:
Languages:  eng     Pagination:  283-90     Citation Subset:  IM    
Copyright Information:
© 2011 Blackwell Publishing Ltd.
Affiliation:
Laboratoire de biologie Cellulaire et Moléculaire, Faculté de Medecine Dentaire Monastir, Rue Avicenne, Université de Monastir, Tunisie Unité de Pharmacognosie/Biologie Moléculaire 99/UR/07-03, Faculté de Pharmacie de Monastir, Université de Monastir, Tunisie.
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