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IUBMB Life. 2011 Dec;63(12):1061-7. doi: 10.1002/iub.532. Epub 2011 Oct 12.

Genetic basis of antibiotic resistance in pathogenic Acinetobacter species.

Author information

1
Service de Bactériologie-Virologie, Hôpital de Bicêtre, South-Paris Medical School, University Paris XI, INSERM U914, 94275 K.-Bicêtre, France. laurent.poirel@bct.aphp.fr

Abstract

Antibiotic resistance in Acinetobacter spp., particularly Acinetobacter baumannii, is increasing rapidly. A. baumannii possesses two intrinsic β-lactamase genes, in addition to weak permeability and efflux systems, that together confer a natural reduced susceptibility to antibiotics. In addition, numerous acquired mechanisms of resistance have been identified in A. baumannii. The very high genetic plasticity of A. baumannii allows an accumulation of resistance determinants that give rise to multidrug resistance at an alarming rate. The role of novel genetic elements, such as resistance islands, in concentrating antibiotic resistance genes in A. baumannii requires detailed investigation in the near future.

PMID:
21990280
DOI:
10.1002/iub.532
[Indexed for MEDLINE]
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