In vitro Cytotoxic Effect of Biosurfactant Extracted from Bifidobacterium spp. on MCF-7 and WRL68 Cell Lines

The aim of the present study was to establish a tamoxifen-resistant cell line (MCF-7/TAM-R) and to investigate the therapeutic effect of G47Δ on this cell line both in vitro and in vivo. In the present study, the MCF-7/TAM-R monoclonal subline was established after exposing MCF-7 cells to tamoxifen for 21 days. Then, it was compared with a wild-type MCF-7 subline (MCF-7W), which was not treated...

Objective: To explore the reversal effects of triptolide (TP) on drug-resistance of adriamycin (Adriacin doxorubicin, ADR)-resistant human breast cancer cell lines (MCF-7/ADR) in vivo and in vitro. Methods: effects of triptolide and adriamycin on MCF-7 and MCF-7/ADR cell proliferation was measured by CCK-8, the reversal effect of triptolide on the drug-resistance of MCF-7/ADR cells was also mea...

Comparison the cytotoxic effects of Ulva fasciata and lactuca on MCF-7 MDA-MB-231breast cancer cell lines

Marine Streptomyces are prolific producers of majority of bioactive secondary metabolites which are used in pharmaceutical industry as effective drugs against life threatening diseases. The cytotoxic activity of the pure compound 1, 2- benzene dicarboxylic acid, mono 2- ethylhexyl ester (DMEHE) from marine derived actinomycete Streptomyces sp. VITSJK8 was investigated against mouse embryonic fi...

new approach of breast cancer therapy is developed toward combination therapy with agent that have a specific molecular target. our previous study showed that citrus aurantifolia lime peels ethanolic extract (cpe) increased the sensitivity of mcf-7 cells againts doxorubicin. this study aims to observe the mechanism of combination cpe and doxorubicin in cell cycle modulation and apoptosis on mcf...

AIM To compare the molecular profile and cell cycle of sensitive and resistant to doxorubicin MCF-7 breast cancer cells upon exposition to conventional or liposome-encapsulated forms of doxorubicin. METHODS capital EM, Cyrilliccapital TE, Cyrilliccapital TE, Cyrillic-test, immunocytochemistry, flow cytometry. RESULTS In sensitive MCF-7 cells the exposure to conventional but not liposomal fo...

High mobility group-1 (HMGB-1) enhances the DNA interactions and possesses a transcriptional activation potential for several families of sequence-specific transcriptional activators. In order to examine the effect of HMGB-1 on the cell cycle progression in MCF-7 cells, the HMGB-1 expression vector was transfected into synchronized MCF-7 cells, and the effect of HMGB-1 overexpression on the cel...