@article{APS7443,
author = {Jing Yuan and Zhen-lun Gu},
title = {Elemene induces apoptosis and regulates expression of bcl-2 protein in human leukemia K562 cells},
journal = {Acta Pharmacologica Sinica},
volume = {20},
number = {2},
year = {2016},
keywords = {},
abstract = {AIM:
To study the antitumor action of elemene (Ele) and its mechanism.
METHODS:
Inhibition of proliferation was measured with a colorimetric 3-[4,5-dimethyl thiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Morphological assessment of apoptosis was performed with fluorescence microscope. DNA fragmentation was assessed by agarose gel electrophoresis and flow cytometry. The levels of bcl-2 protein was measured with flow cytometry.
RESULTS:
Exposure of exponentially growing K562 cells to Ele 65-520 mumol. L-1 for 48 h resulted in growth arrest. The values of IC50 and 95% confidence limits were 220 (152-319) mumol.L-1. After treatment of K562 cells with Ele 130 mumol.L-1, marked morphological changes including \"\"Apo bodies\"\" reduction in volume were observed with fluorescence microscope. Agarose gel electrophoresis of DNA from cells treated with Ele for 48 h revealed \"\"ladder\"\" pattern. The levels of bcl-2 protein in K562 cells treated with Ele for 48 h were obviously decreased.
CONCLUSION:
Ele induces apoptosis of K562 cells, which is related with the down-regulation of bcl-2 protein in K562 cells.},
issn = {1745-7254}, url = {http://www.chinaphar.com/article/view/7443}
}