2017
DOI: 10.3390/toxins9010032
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Auranofin Inhibits the Enzyme Activity of Pasteurella multocida Toxin PMT in Human Cells and Protects Cells from Intoxication

Abstract: The AB-type protein toxin from Pasteurella multocida (PMT) contains a functionally important disulfide bond within its catalytic domain, which must be cleaved in the host cell cytosol to render the catalytic domain of PMT into its active conformation. Here, we found that the reductive potential of the cytosol of target cells, and more specifically, the activity of the thioredoxin reductase (TrxR) is crucial for this process. This was demonstrated by the strong inhibitory effect of the pharmacological TrxR inhi… Show more

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Cited by 3 publications
(3 citation statements)
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“…In conclusion, here, we provide evidence that the AIP56 disulphide bond is required for toxicity and that the TrxR-Trx redox system plays a role intoxication, by reducing that bond at the cytosol, similarly to what has been reported for DT, BoNT, and TeNT (Carle et al, 2017;Pirazzini et al, 2013;Pirazzini et al, 2014). The…”
Section: Mbmdm Lysates Reduce Aip56 Disulphide Bond In Vitrosupporting
confidence: 83%
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“…In conclusion, here, we provide evidence that the AIP56 disulphide bond is required for toxicity and that the TrxR-Trx redox system plays a role intoxication, by reducing that bond at the cytosol, similarly to what has been reported for DT, BoNT, and TeNT (Carle et al, 2017;Pirazzini et al, 2013;Pirazzini et al, 2014). The…”
Section: Mbmdm Lysates Reduce Aip56 Disulphide Bond In Vitrosupporting
confidence: 83%
“…A growing body of evidence suggests that cellular redox factors play essential roles in intoxication by AB toxins, by mediating the reduction of their disulphide bonds (Carle, Brink, Orth, Aktories, & Barth, 2017;Pirazzini et al, 2013;Ratts et al, 2003;Schnell et al, 2016;Sun, 2012). The maintenance of the redox potential of the cell cytosol requires a network of redox systems.…”
Section: Mbmdm Lysates Reduce Aip56 Disulphide Bond In Vitromentioning
confidence: 99%
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