Abstract
Antibiotics have long been used for anti-infective control of
bacterial infections, growth promotion in husbandry, and
prophylactic protection against plant pathogens. However,
their inappropriate use results in the emergence and spread
of multiple drug resistance (MDR) especially among various
bacterial populations, which limits further administration
of conventional antibiotics. Therefore, the demand for novel
anti-infective approaches against MDR diseases becomes
increasing in recent years. The peptide nucleic acid (PNA)-
based technology has been proposed as one of novel antiinfective
and/or therapeutic strategies. By definition, PNA
is an artificially synthesized nucleic acid mimic structurally
similar to DNA or RNA in nature and linked one another via
an unnatural pseudo-peptide backbone, rendering to its stability
in diverse host conditions. It can bind DNA or RNA
strands complimentarily with high affinity and sequence specificity,
which induces the target-specific gene silencing by
inhibiting transcription and/or translation. Based on these
unique properties, PNA has been widely applied for molecular
diagnosis as well as considered as a potential anti-infective
agent. In this review, we discuss the general features
of PNAs and their application to various bacterial pathogens
as new anti-infective or antimicrobial agents.
Citations
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