Studies on the antileishmanial properties of the antimicrobial peptides temporin A, B and 1Sa

Chadbourne, F.L.; Raleigh, C.; Ali, H.Z.; Denny, P.W.; Cobb, S.L.

Abstract

Given the paucity and toxicity of available drugs for leishmaniasis, coupled with the advent of drug resistance, the discovery of new therapies for this neglected tropical disease is recognised as being of the utmost urgency. As such antimicrobial peptides (AMPs) have been proposed as promising compounds against the causative Leishmania species, insect vector-borne protozoan parasites. Here the AMP temporins A, B and 1Sa have been synthesised and screened for activity against Leishmania mexicana insect stage promastigotes and mammalian stage amastigotes, a significant cause of human cutaneous disease. In contrast to previous studies with other species the activity of these AMPs against L. mexicana amastigotes was low. This suggests that amastigotes from different Leishmania species display varying susceptibility to peptides from the temporin family, perhaps indicating differences in their surface structure, the proposed target of these AMPs. In contrast, insect stage L. mexicana promastigotes were sensitive to two of the screened temporins which clearly demonstrates the importance of screening AMPs against both forms of the parasite.

Citation

Chadbourne, F., Raleigh, C., Ali, H., Denny, P., & Cobb, S. (2011). Studies on the antileishmanial properties of the antimicrobial peptides temporin A, B and 1Sa. Journal of Peptide Science, 17(11), 751-755. https://doi.org/10.1002/psc.1398

• Journal Article Type: Article
• Online Publication Date: Aug 1, 2011
• Publication Date: Nov 1, 2011
• Deposit Date: Jul 19, 2011
• Journal: Journal of Peptide Science
• Print ISSN: 1075-2617
• Electronic ISSN: 1099-1387
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 17
• Issue: 11
• Pages: 751-755
• DOI: https://doi.org/10.1002/psc.1398
• Keywords: Leishmania mexicana, Cutaneous leishmaniasis, Drug therapy, Antimicrobial peptides, Temporins.
• Public URL: https://durham-repository.worktribe.com/output/1507198