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Trypanocidal activity of salinomycin is due to sodium influx followed by cell swelling.

Steverding, D and Sexton, DW (2013) Trypanocidal activity of salinomycin is due to sodium influx followed by cell swelling. Parasit Vectors, 6 (78). pp. 1-5. ISSN 1756-3305

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Abstract

BACKGROUND: The few currently available drugs for treatment of African trypanosomiasis are outdated and show problems with toxicity and resistance. Hence, there is an urgent need for the discovery and development of new anti-trypanosomal agents. FINDINGS: In this study, the ionophorous antibiotic salinomycin was investigated for its trypanocidal activity in vitro using culture-adapted bloodstream forms of Trypanosoma brucei. The concentrations of salinomycin to reduce the growth rate by 50% and to kill the parasites were 0.31 μM and 1 μM, respectively. The trypanocidal action of the ionophore was shown to be the result of an influx of Na+ resulting in an increased intracellular Na+ concentration followed by cell swelling. This mode of action differs from the mechanism for the anti-cancer activity of salinomycin reported to be by induction of apoptosis. CONCLUSION: Here we have shown that salinomycin is an effective agent against bloodstream forms of T. brucei and might be a potential candidate for treatment of African trypanosomiasis.

Item Type: Article
Uncontrolled Keywords: 1108 Medical Microbiology, 1117 Public Health And Health Services
Subjects: R Medicine > R Medicine (General)
R Medicine > RS Pharmacy and materia medica
Divisions: Pharmacy & Biomolecular Sciences
Publisher: BioMed Central
Related URLs:
Date Deposited: 16 Mar 2015 14:38
Last Modified: 07 Sep 2017 13:17
DOI or Identification number: 10.1186/1756-3305-6-78
URI: http://researchonline.ljmu.ac.uk/id/eprint/743

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