Volume 133, Issue 11 pp. 6126-6132
Forschungsartikel

Targeted Delivery of Persulfides to the Gut: Effects on the Microbiome

Kearsley M. Dillon

Kearsley M. Dillon

Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061 USA

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Holly A. Morrison

Holly A. Morrison

Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061 USA

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Chadwick R. Powell

Chadwick R. Powell

Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061 USA

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Ryan J. Carrazzone

Ryan J. Carrazzone

Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061 USA

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Veronica M. Ringel-Scaia

Veronica M. Ringel-Scaia

Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061 USA

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Ethan W. Winckler

Ethan W. Winckler

Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061 USA

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R. McAlister Council-Troche

R. McAlister Council-Troche

Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061 USA

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Irving C. Allen

Corresponding Author

Irving C. Allen

Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, 24061 USA

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John B. Matson

Corresponding Author

John B. Matson

Department of Chemistry, Virginia Tech Center for Drug Discovery, and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, VA, 24061 USA

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First published: 29 January 2021
Citations: 5

Abstract

Persulfides (R−SSH) have been hypothesized as potent redox modulators and signaling compounds. Reported herein is the synthesis, characterization, and in vivo evaluation of a persulfide donor that releases N-acetyl cysteine persulfide (NAC-SSH) in response to the prokaryote-specific enzyme nitroreductase. The donor, termed NDP-NAC, decomposed in response to E. coli nitroreductase, resulting in release of NAC-SSH. NDP-NAC elicited gastroprotective effects in mice that were not observed in animals treated with control compounds incapable of persulfide release or in animals treated with Na2S. NDP-NAC induced these effects by the upregulation of beneficial small- and medium-chain fatty acids and through increasing growth of Turicibacter sanguinis, a beneficial gut bacterium. It also decreased the populations of Synergistales bacteria, opportunistic pathogens implicated in gastrointestinal infections. This study reveals the possibility of maintaining gut health or treating microbiome-related diseases by the targeted delivery of reactive sulfur species.

Conflict of interest

The authors declare no conflict of interest.

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