Abstract
Background: Microbial resistance has become a worldwide public health problem and may lead to morbidity and mortality in affected patients.
Objectives: Therefore, this work aimed to evaluate the antibacterial activity of quinone-4- oxoquinoline derivatives.
Methods: These derivatives were evaluated against Gram-positive and Gram-negative bacteria by their antibacterial activity, anti-biofilm, and hemolytic activities and in silico assays.
Results: The quinone-4-oxoquinoline derivatives presented broad-spectrum antibacterial activities and, in some cases, were more active than commercially available reference drugs. These compounds also inhibited bacterial adhesion, and the assays revealed seven non-hemolytic derivatives. The derivatives seem to cause damage to the bacterial cell membrane, and those containing the carboxyl group at the C-3 position of the 4-quinolonic nucleus were more active than those containing a carboxyethyl group.
Conclusion: The isoquinoline-5,8-dione nucleus also favored antimicrobial activity. The study showed that the target of the derivatives must be a non-conventional hydrophobic allosteric binding pocket on the DNA gyrase enzyme.
Keywords: Drug resistance, Antibacterial agents, Quinone derivatives, 4-Oxoquinolines, Gram-positive bacterial infections, Gram-negative bacterial infections.
Graphical Abstract
[http://dx.doi.org/10.3390/molecules21040268] [PMID: 27043501]
[http://dx.doi.org/10.1016/j.ijmm.2019.151359] [PMID: 31585716]
[http://dx.doi.org/10.2174/1568026621666210303145759] [PMID: 33655863]
[http://dx.doi.org/10.1016/j.disamonth.2020.100971] [PMID: 32201008]
[http://dx.doi.org/10.1016/j.ijantimicag.2018.11.010] [PMID: 30472287]
[http://dx.doi.org/10.1016/j.colsurfb.2016.03.007] [PMID: 26970828]
[http://dx.doi.org/10.1021/acs.jmedchem.0c00171] [PMID: 32914977]
[http://dx.doi.org/10.2174/1568026621666210705164319] [PMID: 34225622]
[http://dx.doi.org/10.1186/s13756-018-0337-x] [PMID: 29636910]
[http://dx.doi.org/10.1016/j.jgar.2018.11.010] [PMID: 30448518]
[http://dx.doi.org/10.2147/IDR.S55778] [PMID: 25878509]
[http://dx.doi.org/10.22533/at.ed.38119150213]
[http://dx.doi.org/10.1590/S0100-40422010000300035]
[http://dx.doi.org/10.1016/j.nmni.2015.02.007] [PMID: 26029375]
[http://dx.doi.org/10.1186/s12951-017-0308-z] [PMID: 28974225]
[http://dx.doi.org/10.3390/ijms21061914] [PMID: 32168903]
[http://dx.doi.org/10.1016/j.bsheal.2020.09.004]
[http://dx.doi.org/10.1016/j.micres.2020.126563] [PMID: 32798979]
[http://dx.doi.org/10.1016/j.micpath.2018.03.024] [PMID: 29550501]
[http://dx.doi.org/10.1016/j.ejmech.2017.10.042] [PMID: 29126731]
[http://dx.doi.org/10.1016/j.ejmech.2017.09.050] [PMID: 29031077]
[http://dx.doi.org/10.1016/S0223-5234(03)00151-X] [PMID: 14642332]
[http://dx.doi.org/10.1016/j.ejmech.2018.03.047] [PMID: 29602038]
[http://dx.doi.org/10.1016/j.yrtph.2020.104816] [PMID: 33166621]
[http://dx.doi.org/10.1016/j.lfs.2021.119470] [PMID: 33831423]
[http://dx.doi.org/10.1128/genomeA.00576-13] [PMID: 23929475]
[http://dx.doi.org/10.1186/1471-2180-13-93] [PMID: 23622558]
[http://dx.doi.org/10.1016/0009-3084(93)90070-J] [PMID: 8242838]
[http://dx.doi.org/10.1016/j.foodcont.2007.08.008]
[http://dx.doi.org/10.1016/j.jep.2010.04.025] [PMID: 20435121]
[http://dx.doi.org/10.3390/molecules24010153] [PMID: 30609757]
[http://dx.doi.org/10.1016/0009-2614(91)90478-R]
[http://dx.doi.org/10.1002/(SICI)1096-987X(199604)17:5/6<490:AID-JCC1>3.0.CO;2-P]
[http://dx.doi.org/10.1002/jcc.20425] [PMID: 16691568]
[http://dx.doi.org/10.1371/journal.pcbi.1000435] [PMID: 19593374]
[http://dx.doi.org/10.1016/0021-9991(77)90098-5]
[http://dx.doi.org/10.1021/acs.jcim.6b00347] [PMID: 27599150]
[http://dx.doi.org/10.1016/0263-7855(96)00018-5] [PMID: 8744570]
[http://dx.doi.org/10.1099/jmm.0.000700] [PMID: 29461185]
[PMID: 8894516]
[http://dx.doi.org/10.1101/gr.147710.112] [PMID: 23299977]
[http://dx.doi.org/10.1128/CMR.00181-19] [PMID: 32404435]
[http://dx.doi.org/10.2147/IDR.S107961] [PMID: 27330319]
[http://dx.doi.org/10.1111/jam.13369] [PMID: 27930849]
[http://dx.doi.org/10.1016/j.ejmech.2014.05.024] [PMID: 24852274]
[http://dx.doi.org/10.1016/j.ijantimicag.2015.03.001] [PMID: 25857949]
[http://dx.doi.org/10.1186/s12879-020-4811-8] [PMID: 32000693]
[http://dx.doi.org/10.1002/jor.24074] [PMID: 29924414]
[http://dx.doi.org/10.1038/ijos.2014.65] [PMID: 25504208]
[http://dx.doi.org/10.1021/acsinfecdis.0c00070] [PMID: 32329596]
[http://dx.doi.org/10.3390/pathogens10080978] [PMID: 34451442]
[http://dx.doi.org/10.4248/IJOS11026] [PMID: 21485309]
[http://dx.doi.org/10.1039/C7RA00868F]
[http://dx.doi.org/10.3109/14756366.2014.958083] [PMID: 25431148]
[http://dx.doi.org/10.1016/j.toxrep.2016.09.007]
[http://dx.doi.org/10.1039/c0md00074d]
[http://dx.doi.org/10.1016/j.ab.2015.10.013] [PMID: 26545323]
[http://dx.doi.org/10.1002/elps.201800430] [PMID: 30570157]
[http://dx.doi.org/10.1016/j.foodcont.2014.07.003]
[http://dx.doi.org/10.1038/nrd1032] [PMID: 12612645]
[http://dx.doi.org/10.1021/bi5000564] [PMID: 24576155]
[http://dx.doi.org/10.1126/sciadv.abe0384] [PMID: 33658195]
[http://dx.doi.org/10.1016/j.ejmech.2020.112326] [PMID: 32460040]
[http://dx.doi.org/10.12669/pjms.36.6.2207] [PMID: 32968386]
[http://dx.doi.org/10.1016/j.celrep.2021.109567] [PMID: 34433028]
[http://dx.doi.org/10.1016/j.bioorg.2020.104244] [PMID: 32966903]
[http://dx.doi.org/10.2174/0929867325666180214122944]
[http://dx.doi.org/10.1073/pnas.1700721114] [PMID: 28507124]
[http://dx.doi.org/10.3390/molecules26051234] [PMID: 33669078]