Work

Cytotoxicity of Endocytosis and Efflux Inhibitors in the BeWo Cell Line

Year: 2017

Type: article

Abstract: AIMS: The purpose of this study was to determine the cell viability and cytotoxicity of various endocytosis and efflux inhibitors which can be used to determine transport and uptake mechanisms in the BeWo (b30 clone) human placental trophoblast cell line. Ethanol and dimethylsulfoxide (DMSO) were also studied since they are often used as cosolvents for administration of these inhibitors. METHODOLOGY: The water-soluble tetrazolium-1 (WST-1) assay was used to quantify cell viability and the lactate dehydrogenase (LDH) assay was used to determine cytotoxicity. RESULTS: By the WST-1 assay, reduced cell viability was observed following 4 hours of exposure to chlorpromazine (10 μg/mL), colchicine (1 mM), filipin (3 μg/mL), gentamicin (2 mM), GF120918 (1 μM), methyl-β-cyclodextrin (5 mM), and verapamil (100 μM). By the LDH assay, however, no cytotoxicity was observed after 4 hours of exposure to the aforementioned compounds. Amiloride (500 μM), ethanol (up to 0.1% v/v), and DMSO (up to 0.1% v/v) did not reduce cell viability nor induce cytotoxicity. CONCLUSION: This information is valuable when selecting potential inhibitors of endocytosis and efflux and the selection of time points for mechanistic studies.

Source: Journal of Pharmaceutical Research International

DOI: 10.9734/jpri/2017/34606

Authors: Mansi Shah, Luke Bourner, Shariq Ali, Sanaalarab Al-Enazy, Erik Rytting

Institution: The University of Texas Medical Branch at Galveston

Language: English

Topic: Drug Transport and Resistance Mechanisms

Subfield: Oncology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

Funder: Eunice Kennedy Shriver National Institute of Child Health and Human Development