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KMID : 0829320090120010001
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Korean Journal of Clinical Microbiology
2009 Volume.12 No. 1 p.1 ~ p.5
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Mechanisms of Acquiring Carbapenem-resistance in Acinetobacter Species
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Jeong Seok-Hoon
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Abstract
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A rapid dissemination of carbapenem-resistant Acinetobacter spp. represents a significant clinical threat. Production of OXA carbapenemases and metallo-β-lactamases (MBLs) is the most important mechanism in acquiring carbapenem resistance in Acinetobacter spp. Carbapenem resistance has also ascribed to nonenzymatic mechanisms, including changes in outer membrane proteins, alterations in the affinity or expression of penicillin-binding proteins, and overexpression of efflux pumps. The most important mechanism in A. baumannii isolates from Korea is the production of OXA-23, while that in other species of Acinetobacter is the production of metallo-β-lactamases
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KEYWORD
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Acinetobacter, OXA carbapenemase, OXA-51, OXA-23, Metallo-β-lactamase, Outermembrane protein, AdeABC efflux pump
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