Abstract Title:

Growth inhibitory effect of ethyl acetate-soluble fraction of Cynara cardunculus L. in leukemia cells involves cell cycle arrest, cytochrome c release and activation of caspases.

Abstract Source:

BMC Ear Nose Throat Disord. 2009 Jul 27;9:7. PMID: 17705147

Abstract Author(s):

S Nadova, E Miadokova, P Mucaji, D Grancai, L Cipak


An extract of artichoke Cynara cardunculus L. (CCE) has been shown to exhibit antioxidant and antigenotoxic properties. In this study, the ability of CCE to inhibit the growth of L1210 and HL-60 leukemia cells was studied. Treatment of leukemia cells with a variety of concentrations of CCE (500-2500 microg/microL) for 24 h resulted in dose-dependent inhibition of leukemia cell growth. The cell growth inhibition was accompanied by G(0)/G(1) cell cycle arrest and by a loss of cells in S phase. Futhermore, apoptosis detected as a sub-G(0) cell population and apoptotic DNA fragmentation was observed. More detailed analyses of apoptosis induced by CCE in HL-60 cells revealed that apoptosis progressed through the caspase-9/-3 pathway, as release of cytochrome c, caspase-9/-3 activations and specific proteolytic cleavage of poly(ADP-ribose) polymerase. Taken together, the results suggest that CCE exerts an antiproliferative activity on leukemia cells and induces apoptosis of these cells through a mitochondrial/caspase dependent pathway.

Study Type : In Vitro Study
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