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Medical Science Monitor Basic Research has been selected for the ESCI - Emerging Sources Citation Index (Thomson Reuters, Web of Science, ISI), launching in November 2015 as a new edition of the Web of read more


Published: 2018-12-10

Curcumin-Mediated Induction of Apoptosis in Human Glioma CHME Cells

Yunqiang Zhang, Lijun Tu, Xiuhong Zhou, Bin Li

(Department of Neurosurgery, Chenzhou No. 1 People’s Hospital, Chenzhou, Hunan, China (mainland))

Med Sci Monit Basic Res 2018; 24:216-224

DOI: 10.12659/MSMBR.912313


BACKGROUND: Curcumin has clear anti-tumor activity in various carcinomas. It regulates various signaling pathways like Wnt/β-catenin and JAK2/STAT3, which play vital roles in cell proliferation of several carcinomas, but to the best of our knowledge, there are currently no published reports on human glioma CHME cells. Therefore, the aim of this study was to explore the effect of curcumin on human glioma CHME cells.
MATERIAL AND METHODS: The CHME cell line was purchased from American Type Culture Collection (ATCC). The expressions of caspases 3, caspases 9, PARP, BAX, and BCL2 were detected by Western blot. Annexin V FITC, mitochondrial membrane potential, and reactive oxygen species were detected by flow cytometry. DAPI staining was detected by fluorescence microscopy. Cell viability was assessed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT) assay.
RESULTS: We found that curcumin has cytotoxic activity in human glioma CHME cells, as shown by DAPI staining, annexin V/PI, and nuclear morphology. We found that cell growth decreased with increased concentration of curcumin, as well as sowing effects on expression of caspase-3, caspase-9, and cleavage of PARP, which suggests apoptotic cascade activity. The increase in reactive oxygen species and loss of mitochondrial membrane potential (Δψmt) in concentration-dependent manners suggests biochemical induction of apoptosis in CHME cells.
CONCLUSIONS: Curcumin has effective anticancer activity in human glioma CHME cells by inducing the apoptotic pathway.

Keywords: Apoptosis, Caspases, Curcumin, Glioma, Membrane Potential, Mitochondrial, Reactive Oxygen Species



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