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Abstract Title:

Isoflavones extracted from chickpea Cicer arietinum L. sprouts induce mitochondria-dependent apoptosis in human breast cancer cells.

Abstract Source:

Phytother Res. 2015 Feb ;29(2):210-9. Epub 2014 Oct 7. PMID: 25287332

Abstract Author(s):

Hua Chen, Hai-Rong Ma, Yan-Hua Gao, Xue Zhang, Madina Habasi, Rui Hu, Haji Akber Aisa

Article Affiliation:

Hua Chen

Abstract:

Isoflavones are important chemical components of the seeds and sprouts of chickpeas. We systematically investigated the effects of isoflavones extracted from chickpea sprouts (ICS) on the human breast cancer cell lines SKBr3 and Michigan Cancer Foundation-7 (MCF-7). 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays showed that ICS (10-60 µg/mL) significantly inhibited the proliferation of both cell lines in a time-dependent and dose-dependent fashion. Wright-Giemsa staining as well as annexin V-fluorescein isothiocyanate and propidium iodide (Annexin V/PI) staining showed that ICS significantly increased cytoclasis and apoptoticbody formation. Quantitative Annexin V/PI assays further showed that the number of apoptotic cells increased in a dose-dependent manner following ICS treatment. Semiquantitative reverse transcription PCR showed that ICS increased the expression of the apoptosis-promoting gene Bcl-2-associated X protein and decreased the expression of the antiapoptotic gene Bcl-2. Western blot analysis showed that treatment of SKBr3 and MCF-7 cells with ICS increased the expression of caspase 7, caspase 9, P53, and P21 in a dose-dependent manner. Flow cytometry assays using the fluorescent probe 3,3'-dihexyloxacarbocyanine iodide showed a dose-dependent decrease in mitochondrial membrane potential following ICS treatment. Treatment using ICS also induced a dose-dependent increase in reactive oxygen species production. This is the first study to demonstrate that ICS may be a chemopreventive or therapeuticagent against breast cancer.

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Sayer Ji
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