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Background: Mobile colistin resistance () genes modify Lipid A molecules of the lipopolysaccharide, changing the overall charge of the outer membrane.
Results And Discussion: Ten genes have been described to date within eleven Enterobacteriaceae species, with , , and species being the most predominant. They are present worldwide in 72 countries, with animal specimens currently having the highest incidence, due to the use of colistin in poultry for promoting growth and treating intestinal infections. The wide dissemination of from food animals to meat, manure, the environment, and wastewater samples has increased the risk of transmission to humans foodborne and vector-borne routes. The stability and spread of genes were mediated by mobile genetic elements such as the IncHI conjugative plasmid, which is associated with multiple genes and other antibiotic resistance genes. The cost of acquiring is reduced by compensatory adaptation mechanisms. MCR proteins are well conserved structurally and enzymatic action. Thus, therapeutics found effective against MCR-1 should be tested against the remaining MCR proteins.
Conclusion: The dissemination of genes into the clinical setting, is threatening public health by limiting therapeutics options available. Combination therapies are a promising option for managing and treating colistin-resistant infections whilst reducing the toxic effects of colistin.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9462459 | PMC |
| http://dx.doi.org/10.3389/fcimb.2022.941358 | DOI Listing |
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