Abstract
In this study, we evaluated the cytotoxicity and apoptotic activity of Zingiber officinale (ZO), Terminalia chebula (TC) alone, and in combination (ZO:TC-1:4). The presence of major bioactive compounds in ZO (6-gingerol and 6-shogaol) and TC (gallic acid, ellagic acid, and chebulinic acid) were evaluated by high performance liquid chromatography. The IC50 values of ZO, TC, and ZOTC (1:4) was estimated to be 88.5, 108.5, and 53.5 μg/mL, respectively. The cell death and cytomorphology changes upon treatment were observed. At these concentrations, ZO, TC, and ZOTC showed reduced mitochondrial membrane potential, increased reactive oxygen species, and apoptotic activities. It was also reported to downregulate mTOR and hTERT gene expression levels which are the primary genes for cell proliferation and growth. This first report on ZOTC combination has the potential to develop as a therapeutic agent for breast cancer.
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