Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual Suspects

The common practice in antibacterial drug development has been to rapidly make an attempt to find ever-more stable and broad-spectrum variants for a particular antibiotic, once a drug resistance for that antibiotic is detected. We are now facing bacterial resistance toward our clinically relevant an...

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Main Author: Monika I. Konaklieva
Format: Article
Language:English
Published: MDPI AG 2014-04-01
Series:Antibiotics
Subjects:
Online Access:http://www.mdpi.com/2079-6382/3/2/128
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author Monika I. Konaklieva
author_facet Monika I. Konaklieva
author_sort Monika I. Konaklieva
collection DOAJ
description The common practice in antibacterial drug development has been to rapidly make an attempt to find ever-more stable and broad-spectrum variants for a particular antibiotic, once a drug resistance for that antibiotic is detected. We are now facing bacterial resistance toward our clinically relevant antibiotics of such a magnitude that the conversation for antimicrobial drug development ought to include effective new antibiotics with alternative mechanisms of action. The electrophilic β-lactam ring is amenable for the inhibition of different enzyme classes by a suitable decoration of the core scaffold. Monocyclic β-lactams lacking an ionizable group at the lactam nitrogen exhibit target preferences toward bacterial enzymes important for resistance and virulence. The present review intends to draw attention to the versatility of the β-lactams as antimicrobials with “unusual” molecular targets.
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spelling doaj.art-74ed88676bc142f3b99fdfbbef89e9ed2022-12-22T00:51:34ZengMDPI AGAntibiotics2079-63822014-04-013212814210.3390/antibiotics3020128antibiotics3020128Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual SuspectsMonika I. Konaklieva0Department of Chemistry, American University, 4400 Massachusetts Ave. NW, Washington, DC, 20016-8014, USAThe common practice in antibacterial drug development has been to rapidly make an attempt to find ever-more stable and broad-spectrum variants for a particular antibiotic, once a drug resistance for that antibiotic is detected. We are now facing bacterial resistance toward our clinically relevant antibiotics of such a magnitude that the conversation for antimicrobial drug development ought to include effective new antibiotics with alternative mechanisms of action. The electrophilic β-lactam ring is amenable for the inhibition of different enzyme classes by a suitable decoration of the core scaffold. Monocyclic β-lactams lacking an ionizable group at the lactam nitrogen exhibit target preferences toward bacterial enzymes important for resistance and virulence. The present review intends to draw attention to the versatility of the β-lactams as antimicrobials with “unusual” molecular targets.http://www.mdpi.com/2079-6382/3/2/128antibiotic resistancedirected evolutionβ-lactams as chemical probes
spellingShingle Monika I. Konaklieva
Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual Suspects
Antibiotics
antibiotic resistance
directed evolution
β-lactams as chemical probes
title Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual Suspects
title_full Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual Suspects
title_fullStr Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual Suspects
title_full_unstemmed Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual Suspects
title_short Molecular Targets of β-Lactam-Based Antimicrobials: Beyond the Usual Suspects
title_sort molecular targets of β lactam based antimicrobials beyond the usual suspects
topic antibiotic resistance
directed evolution
β-lactams as chemical probes
url http://www.mdpi.com/2079-6382/3/2/128
work_keys_str_mv AT monikaikonaklieva moleculartargetsofblactambasedantimicrobialsbeyondtheusualsuspects