Background: ß-carbolines, harmaline and harmine, are the major alkaloids presenting in the seeds of the Peganum harmala L. These alkaloids are known as herbal active principals with potential use in pharmaceutical and medicine. Objectives: To assess the growth inhibitory effect of phyto-alkaloids, harmaline and harmine, on cancer cell lines. Method...

objective(s):berberine, a naturally occurring isoquinoline alkaloid, has shown antitumor properties in some in vitro systems. but the effect of berberine on breast cancer has not yet been completely studied. in this study, we evaluated anticancer properties of berberine in comparison to doxorubicin. materials and methods: the antiproliferative effects of berberine and doxorubicin alone and in c...

Intrathymic T cell development is a multistage process involving discrete phases of proliferation as well as differentiation. From studies on IL-7 or IL-7Ralpha-deficient mice, it is clear that the IL-7 receptor (IL-7R) plays a critical role during the initial stages of intrathymic CD4-8- precursor development. In contrast, the role of IL-7R in later stages of thymocyte development are unclear....

adenosine receptor family especially a1 type is expressed in breast cancer cells in which p53 and caspase genes are wild-type. the aim of this study was to investigate the correlation between a1 receptor and either cell apoptosis or proliferation and also to recognize the relationship between this receptor and p53 and the expression of caspases 3, 8 and 9 in mcf-7 cell line. mcf-7 cells were tr...

abstract background: the aims of this study were to assay the activity of adenosine deaminase (ada) in estrogen receptor positive (mcf-7) and negative (mda-mb468) breast cancer cell lines. methods: mda-mb468 and mcf-7 breast cancer cell lines were cultured in complete medium, striped serum with and without 0.0 1~-lm diethylstilbestrol (des), complete medium in the presence and absence of 111m t...

Introduction: Electroporation is a practical technique used to transport the molecules across the cell membrane. The utilization of fluorescent molecules is the method widely used to evaluate the electropermeability of cell membrane as a result of pulse application. It is also possible to use mathematical methods to predict the changes caused in cell electropermeability as a result of the chang...

background: molecular targeted therapy by different cell death inducers are recently considered in cancer therapy. the aim of this study was to compare the effect of cisplatin and inositol trisphosphate kinase inhibitor (caffeine) on human breast cancer cell line (mcf-7). the pattern of cell death in mcf-7 cells following the exposure to cisplatin and caffeine in individual and combination form...

Background and objective: According to reports, a serine protease inhibitor (Maspin) suppresses metastasis, invasion and angiogenesis in breast and prostate cancers. Silibinin is a natural polyphenolic flavonoid with anti-cancer activity. We assessed the effects of silibinin on cell viability, maspin and ERα gene expression in MCF-7 cell line. <s...