Many phytochemicals have been recognized to have potential chemopreventive or chemotherapeutic efficacy in cancer treatment. In this study, we hypothesized that berberine would have anticancer activities in SCC-4 human tongue cancer cells. Results indicated that berberine reduced the viability of SCC-4 cells, which was initiated by the generation of reactive oxygen species, via an increase in cytosolic Ca(2+).
View Article and Find Full Text PDFCapsaicin, a pungent ingredient of red pepper, has been reported to possess antitumor activities. In this study, the effects of capsaicin on human HepG2 cells were investigated. Capsaicin reduced viability by PI incorporation in HepG2 cells in a dose and time dependent manner.
View Article and Find Full Text PDFOur primary studies showed that berberine induced apoptosis in human tongue cancer SCC-4 cells in vitro. But there is no report to show berberine inhibited SCC-4 cancer cells in vivo on a murine xenograft animal model. SCC-4 tumor cells were implanted into mice and groups of mice were treated with vehicle, berberine (10mg/kg of body weight) and doxorubicin (4mg/kg of body weight).
View Article and Find Full Text PDFThere is increasing evidence that urokinase-type plasminogen activator (u-PA) and matrix metalloproteinases (MMPs) play an important role in cancer metastasis and angiogenesis. Inhibition of u-PA and MMPs could suppress migration and invasion of cancer cells. Berberine, one of the main constituents of the plant Rhizoma coptidis, is a type of isoquinoline alkaloid, reported to have anti-cancer effects in different human cancer cell lines.
View Article and Find Full Text PDFBerberine, an isoquinoline alkaloid, has been shown to possess anticancer properties in some cancer cell lines. Here, we report that in vitro treatment of cervical cancer Ca Ski cells with berberine decreased the percentage of viable Ca Ski cells in a dose-dependent and time-dependent manner. Berberine enhanced the apoptosis of Ca Ski cells with the induction of a higher ratio of p53 and Bax/Bcl-2 proteins, increased levels of reactive oxygen species (ROS) and Ca2+, disruption of the mitochondrial membrane potential, and promotion of caspase-3 activity.
View Article and Find Full Text PDFApoptosis is a physiological mechanism for eliminating malignant cells, including cancer cells, without eliciting damage to normal cells or surrounding tissues. Here, we report that rhein (4,5-dihydroxyanthraquinone-2-carboxylic acid), a major constituent in the rhizome of rhubarb, induced apoptosis of human nasopharyngeal carcinoma (NPC) cells. Rhein induced apoptosis in NPC cells as demonstrated by increased nuclear condensation and DNA fragmentation.
View Article and Find Full Text PDFHuman cervical cancer is potentially lethal, and therefore the development of effective and tolerable therapeutic options is vital. In the present study, the in vitro effect of the synthetized compound JOT01006 (C21H20C1NO4) on human cervical epithelioid carcinoma cell line (HeLa) was examined. The results demonstrated that JOT01006 induced morphological changes and cytotoxicity (decreased the percentage of viable cells) in a dose-dependent manner.
View Article and Find Full Text PDFBackground: Chemotherapy agents, particularly those that can induce apoptosis, are the major intervening strategy in the treatment of leukemia. In this study, we investigated the effects of baicalin (a compound obtained from Scutellaria baicalensis Georgi and S. rivularis Benth Labiateae) on the viability, induction of apoptosis and associated mechanism in human leukemia HL-60 cells.
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