Aminoglycoside modifying enzymes
Aminoglycosides have been an essential component of the armamentarium in the treatment of life-threatening infections. Unfortunately, their efficacy has been reduced by the surge and dissemination of resistance. In some cases the levels of resistance reached the point that rendered them virtually us...
| Autores: | ; |
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| Tipo de documento: | Artigo |
| Estado: | Published version |
| Data de publicação: | 2010 |
| País: | Argentina |
| Recursos: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositório: | CONICET Digital (CONICET) |
| Idioma: | Inglês |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/67587 |
| Acesso em linha: | http://hdl.handle.net/11336/67587 |
| Nível de acesso: | Acesso aberto |
| Palavra-chave: | ACETYLTRANSFERASE AMINOGLYCOSIDE AMINOGLYCOSIDE MODIFYING ENZYME ANTIBIOTIC RESISTANCE ANTISENSE BACTERIAL INFECTION KINASE NUCLEOTIDYLTRANSFERASE PHOSPHOTRANSFERASE RNASE H RNASE P https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
| Resumo: | Aminoglycosides have been an essential component of the armamentarium in the treatment of life-threatening infections. Unfortunately, their efficacy has been reduced by the surge and dissemination of resistance. In some cases the levels of resistance reached the point that rendered them virtually useless. Among many known mechanisms of resistance to aminoglycosides, enzymatic modification is the most prevalent in the clinical setting. Aminoglycoside modifying enzymes catalyze the modification at different -OH or -NH2 groups of the 2-deoxystreptamine nucleus or the sugar moieties and can be nucleotidyltranferases, phosphotransferases, or acetyltransferases. The number of aminoglycoside modifying enzymes identified to date as well as the genetic environments where the coding genes are located is impressive and there is virtually no bacteria that is unable to support enzymatic resistance to aminoglycosides. Aside from the development of new aminoglycosides refractory to as many as possible modifying enzymes there are currently two main strategies being pursued to overcome the action of aminoglycoside modifying enzymes. Their successful development would extend the useful life of existing antibiotics that have proven effective in the treatment of infections. These strategies consist of the development of inhibitors of the enzymatic action or of the expression of the modifying enzymes. |
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