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Current Medicinal Chemistry

Editor-in-Chief

ISSN (Print): 0929-8673
ISSN (Online): 1875-533X

Resistance to β-Lactam Antibiotics: Structure and Mechanism Based Design of β-Lactamase Inhibitors

Author(s): Vincent P. Sandanayaka and Amar S. Prashad

Volume 9 , Issue 12 , 2002

Page: [1145 - 1165] Pages: 21

DOI: 10.2174/0929867023370031

Price: $65

Abstract

Resistance to antibiotics is currently a major health concern in treating infectious diseases. The most common mechanism of resistance to β-lactam antibiotics is the production of β-lactamases, which destroy β-lactam antibiotics before they reach the bacterial target. Combination therapy, which involves treatment with a β-lactam antibiotic and a β-lactamase inhibitor, has been successfully used to control resistance during last two decades. Due to the lack of effectiveness of the currently available β-lactamase inhibitors against class C enzymes and new variants of β-lactamases, there is a need to develop an inhibitor with broad-spectrum activity. Since the discovery of clavulanic acid, there has been an enormous research effort in this area to identify better antibiotic / inhibitor combinations and to understand the molecular bases for interactions between β-lactam antibiotics, β-lactamases, and β-lactamase inhibitors. This review describes some of the structure- and mechanism-based approaches to design of new β-lactamase inhibitors and the study of probable mechanisms of inhibition using X-ray, electrospray ionization mass spectrometry, and molecular modeling techniques.

Keywords: beta-lactam antibioties, beta-lactamase, c enzymes, clavulanic acid


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