Identification of the potential biological target of N -benzenesulfonyl-1,2,3,4-tetrahydroquinoline compounds active against gram-positive and gram-negative bacteria

RIBONE, SERGIO R.

JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS

ADENINE PRESS

Año: 2019 p. 1 - 1

0739-1102

he development of new antibiotics with activity towards a broad spectrum of bacteria,including multiresistant strains, is a very important topic for global public health. As part ofprevious works, N-benzenesulfonyl-1,2,3,4-tetrahydroquinoline (BSTHQ) derivatives weredescribed as antimicrobial agents active against Gram-positive and Gram-negative pathogens.In this work, experimental and molecular modelling studies were performed in order toidentify their potential biological target in the light of structure-based design efforts towardsfurther BSTHQ derivatives. First, a carboxyfluorescein leakage assay was performed usingliposomes to mimic bacterial membranes, which found no significative membrane disruptioneffects with respect to control samples. These results support a non-surfactant antimicrobialactivity of the tested compounds. In a second stage, the inhibition of potential antimicrobialtargets was screened using molecular modelling methods, taking into account previouslyreported d