Connexin (Cx) genes exert negative growth effects on tumor cells with certain cell specificity. We have recently reported that Cx32 acts as a tumor suppressor gene in a metastatic renal cancer cell line (Caki-1) due to the inactivation of Src. In line with the previous study, here we investigated if an Src family inhibitor (PP1) could enhance the tumor-suppressive effect of Cx32 in Caki-1 cells...

Scorpion venom toxicity is of major concern due to its influence on human activities and public health. We investigated the in-vitro process of cell death caused by two Iranian scorpions Odontobuthus doriae and Bothutus salceyi venom on human cell lines. The aim of this study was to provide further information about triggering cell death and suggestion of methods for the elimination of unwanted...

objective: hypoxia-inducible factor (hif)-1 plays an essential role in the body’s response to low oxygen concentrations and regulates expression of several genes implicated in homeostasis, vascularization, anaerobic metabolism as well as immunological responses. increased levels of hif-1α are associated with increased proliferation and more aggressive breast tumor development. lactobacilli have...

An extra- and an intracellular product from the bacterium Haemophilus ducreyi were shown to have a cytotoxic effect on cell lines of epithelial origin, e.g., HEp-2 and HeLa cells. The cytotoxic effect appeared on cells within 24 h and resulted in cell death and morphologically changed cells. The cytotoxic activity was heat and pronase sensitive. The activity could be removed by incubation with ...

The methanol and fractionated extracts (hexane, ethyl acetate and water) of Alpinia mutica (Zingiberaceae) rhizomes were investigated for their cytotoxic effect against six human carcinoma cell lines, namely KB, MCF7, A549, Caski, HCT116, HT29 and non-human fibroblast cell line (MRC 5) using an in vitro cytotoxicity assay. The ethyl acetate extract possessed high inhibitory effect against KB, M...

objective(s): the aim of this study was to determine cytotoxic effect of nanoliposomal form of lyophilized aqueous extract of ecballium elaterium fruit on gastric cell line (ags) using cell viability tests. methods: an aqueous extract of the fruits of ecballium elaterium was prepared. nanoliposomal form was also prepared by thin-film hydration method and stability size was determined by sem. th...

background: aurones are naturally occurring compounds that belong to flavenoids family and have antiplasmodial effects. this study investigated some new aurones derivatives against chloroquine sensitive plasmodium falciparum. here we report the synthesis , in vitro antiplasmodial activity and cytotoxic evaluation of 11 compound from derivatives of (z)-2- benzylidene-4, 6-dimethoxybenzofuran-3(2...

Mechanisms involving the in vitro effect of rituximab in cells from 55 patients with B-cell lymphoproliferative disorders were investigated. No cytotoxic effect was observed when cells were incubated with rituximab alone, but in the presence of human AB serum rituximab induced complement-dependent cell death (R-CDC). A cytotoxic effect was observed in cells from 9 of 33 patients with B-cell chr...

It has been reported that several conifers possess cytotoxic activities on some human tumor cell lines. Taxol as a natural cytotoxic compound has been extracted from this family. In a program to screen the cytotoxic effects of natural resources, male and female branchlets, fruit or bark of two different species of Iranian conifers were collected, identified and the cytotoxic effects of their hy...