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Article Publish Status: FREE
Abstract Title:

Betulinic Acid Prevents the Acquisition of Ciprofloxacin-Mediated Mutagenesis in.

Abstract Source:

Molecules. 2019 May 7 ;24(9). Epub 2019 May 7. PMID: 31067626

Abstract Author(s):

Alexsander Rodrigues Carvalho Junior, Arthur Lima de Berredo Martins, Brenda da Silva Cutrim, Deivid Martins Santos, Hermerson Sousa Maia, Mari Silma Maia da Silva, Adrielle Zagmignan, Maria Raimunda Chagas Silva, Cristina de Andrade Monteiro, Giselle Maria Skelding Pinheiro Guilhon, Antônio José Cantanhede Filho, Luís Cláudio Nascimento da Silva

Article Affiliation:

Alexsander Rodrigues Carvalho Junior

Abstract:

The occurrence of damage on bacterial DNA (mediated by antibiotics, for example) is intimately associated with the activation of the SOS system. This pathway is related to the development of mutations that might result in the acquisition and spread of resistance and virulence factors. The inhibition of the SOS response has been highlighted as an emerging resource, in order to reduce the emergence of drug resistance and tolerance. Herein, we evaluated the ability of betulinic acid (BA), a plant-derived triterpenoid, to reduce the activation of the SOS response and its associated phenotypic alterations, induced by ciprofloxacin in. BA did not show antimicrobial activity against(MIC>5000µg/mL), however, it (at 100 and 200 µg/mL) was able to reduce the expression ofinduced by ciprofloxacin. This effect was accompanied by an enhancement of the ciprofloxacin antimicrobial action and reduction ofcell volume (as seen by flow cytometry and fluorescence microscopy). BA could also increase the hyperpolarization of themembrane, related to the ciprofloxacin action. Furthermore, BA inhibited the progress of tolerance and the mutagenesis induced by this drug. Taken together, these findings indicate that the betulinic acid is a promising lead molecule in the development helper drugs. These compounds may be able to reduce themutagenicity associated with antibiotic therapies.

Study Type : In Vitro Study

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