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Issue 2, 2017
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Toxicity of tryptophan manganese(I) carbonyl (Trypto-CORM), against Neisseria gonorrhoeae

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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.

Graphical abstract: Toxicity of tryptophan manganese(i) carbonyl (Trypto-CORM), against Neisseria gonorrhoeae

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Publication details

The article was received on 01 Nov 2016, accepted on 02 Dec 2016 and first published on 06 Dec 2016


Article type: Research Article
DOI: 10.1039/C6MD00603E
Citation: Med. Chem. Commun., 2017,8, 346-352
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    Toxicity of tryptophan manganese(I) carbonyl (Trypto-CORM), against Neisseria gonorrhoeae

    J. S. Ward, R. Morgan, J. M. Lynam, I. J. S. Fairlamb and J. W. B. Moir, Med. Chem. Commun., 2017, 8, 346
    DOI: 10.1039/C6MD00603E

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