Abstract
Antibiotic resistance appearance and spread have been classically considered the result of a process of natural selection, directed by the use of antibiotics. Bacteria, that have to face the antibiotic challenge, evolve to acquire resistance and, under this strong selective pressure, only the fittest survive, leading to the spread of resistance mechanisms and resistant clones. Horizontal transference of resistance mechanisms seems to be the main way of antibiotic resistance acquisition. Nevertheless, recent findings on hypermutability and antibiotic-induced hypermutation in bacteria have modified the landscape. Here, we present a review of the last data on molecular mechanisms of hypermutability in bacteria and their relationship with the acquisition of antibiotic resistance. Finally, we discuss the possibility that antibiotics may act not only as selectors for antibiotic resistant bacteria but also as resistance promoters.
Keywords: Antibiotic Resistance, hypermutation, hypermutability
Current Drug Targets
Title: Mutation and Evolution of Antibiotic Resistance: Antibiotics as Promoters of Antibiotic Resistance?
Volume: 3 Issue: 4
Author(s): Jesus Blazquez, Antonio Oliver and Jose-Maria Gomez-Gomez
Affiliation:
Keywords: Antibiotic Resistance, hypermutation, hypermutability
Abstract: Antibiotic resistance appearance and spread have been classically considered the result of a process of natural selection, directed by the use of antibiotics. Bacteria, that have to face the antibiotic challenge, evolve to acquire resistance and, under this strong selective pressure, only the fittest survive, leading to the spread of resistance mechanisms and resistant clones. Horizontal transference of resistance mechanisms seems to be the main way of antibiotic resistance acquisition. Nevertheless, recent findings on hypermutability and antibiotic-induced hypermutation in bacteria have modified the landscape. Here, we present a review of the last data on molecular mechanisms of hypermutability in bacteria and their relationship with the acquisition of antibiotic resistance. Finally, we discuss the possibility that antibiotics may act not only as selectors for antibiotic resistant bacteria but also as resistance promoters.
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Cite this article as:
Blazquez Jesus, Oliver Antonio and Gomez-Gomez Jose-Maria, Mutation and Evolution of Antibiotic Resistance: Antibiotics as Promoters of Antibiotic Resistance?, Current Drug Targets 2002; 3 (4) . https://dx.doi.org/10.2174/1389450023347579
DOI https://dx.doi.org/10.2174/1389450023347579 |
Print ISSN 1389-4501 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5592 |
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