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- W1981388076 abstract "ABSTRACT Within the repertoire of antibiotics available to a prescribing clinician, the majority affect a broad range of microorganisms, including the normal flora. The ecological disruption resulting from antibiotic treatment frequently results in secondary infections or other negative clinical consequences. To address this problem, our laboratory has recently developed a new class of pathogen-selective molecules, called s pecifically (or s electively) t argeted a nti m icrobial p eptides (STAMPs), based on the fusion of a species-specific targeting peptide domain with a wide-spectrum antimicrobial peptide domain. In the current study, we focused on achieving targeted killing of Streptococcus mutans , a cavity-causing bacterium that resides in a multispecies microbial community (dental plaque). In particular, we explored the possibility of utilizing a pheromone produced by S. mutans , namely, the c ompetence s timulating p eptide (CSP), as a STAMP targeting domain to mediate S. mutans -specific delivery of an antimicrobial peptide domain. We discovered that STAMPs constructed with peptides derived from CSP were potent against S. mutans grown in liquid or biofilm states but did not affect other oral streptococci tested. Further studies showed that an 8-amino-acid region within the CSP sequence is sufficient for targeted delivery of the antimicrobial peptide domain to S. mutans . The STAMPs presented here are capable of eliminating S. mutans from multispecies biofilms without affecting closely related noncariogenic oral streptococci, indicating the potential of these molecules to be developed into “probiotic” antibiotics which could selectively eliminate pathogens while preserving the protective benefits of a healthy normal flora." @default.
- W1981388076 created "2016-06-24" @default.
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- W1981388076 date "2006-11-01" @default.
- W1981388076 modified "2023-10-02" @default.
- W1981388076 title "Targeted Killing of <i>Streptococcus mutans</i> by a Pheromone-Guided “Smart” Antimicrobial Peptide" @default.
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- W1981388076 doi "https://doi.org/10.1128/aac.00622-06" @default.
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