Toxicity of tryptophan manganese(I) carbonyl (Trypto-CORM), against Neisseria gonorrhoeae

Jonathan S. Ward, Rebecca Morgan, Jason M. Lynam, Ian J S Fairlamb, James W B Moir*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The potential for carbon monoxide-releasing molecules (CO-RMs) as antimicrobials represents an exciting prospective in the fight against antibiotic resistance. Trypto-CORM, a tryptophan-containing manganese(i) carbonyl, is toxic against E. coli following photo-activation. Here, we demonstrate that Trypto-CORM is toxic against Neisseria gonorrhoeae in the absence of photoactivation. Trypto-CORM toxicity was reversed by the high CO affinity globin leg-haemoglobin (Leg-Hb), indicating that the toxicity is due to CO release. Release of CO from Trypto-CORM in the dark was also detected with Leg-Hb (but not myoglobin) in vitro. N. gonorrhoeae is more sensitive to CO-based toxicity than other model bacterial pathogens, and may serve as a viable candidate for antimicrobial therapy using CO-RMs.

Original languageEnglish
Pages (from-to)346-352
Number of pages7
JournalMedChemComm
Volume8
Issue number2
Early online date6 Dec 2016
DOIs
Publication statusPublished - 2017

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