A New Protein Extract Inhibitor from Hypobranchial Purple Gland of Hexaplex trunculus, a Mediterranean Mollusk, Impairs the Motility of Human Glioblastoma U87 and the HeLa Cell Line of Cervical Carcinoma Cells
- PMID:29083237
- DOI: 10.1080/01635581.2017.1359315
A New Protein Extract Inhibitor from Hypobranchial Purple Gland of Hexaplex trunculus, a Mediterranean Mollusk, Impairs the Motility of Human Glioblastoma U87 and the HeLa Cell Line of Cervical Carcinoma Cells
Abstract
The aim of this study is to evaluate the effect of hypobranchial gland protein extracts (HGPEs) of Hexaplex trunculus on the viability, cell adhesion, and migration of human U87 glioblastoma cells and the HeLa cell line obtained from epithelial cervical carcinoma cells. Analysis of the HGPE on polyacrylamide gel (12%) shows a variety of proteins whose molecular weights vary between 12 and 1OO kDa. Chromatographic analysis shows 16 peaks obtained at various retention times. Cytotoxic effect was observed after 24 hours of incubation at the concentrations 20, 40, and 60 μg/ml in a dose-dependent manner. Concentrations giving 50% inhibition (IC50) are 22 μg/ml for U87 and 15 μg/ml for HeLa cells. Our results show inhibition of U87 and HeLa cancer cell adhesion at concentrations of 10 and 20 µg/ml, respectively. High-pressure liquid chromatography fractions did not show antiadhesive effect on both cancer cell lines. The presence of HGPEs completely blocked the migration of the two cancer cell lines at 10 µg/ml. This inhibition is dose-dependent. IC50 is about 2.5 μg/ml for both cancer cells. The HGPE of Hexaplex trunculus may have the potential to serve as a model for future anticancer drug development with probably a synergistic activity of the proteins of this extract.
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