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Article Abstract
() is regarded as a significant risk factor for gastritis, peptic ulcer disease, and gastric cancer. However, the increasing resistance of strains has resulted in low eradication rates and ineffective treatments. Herein, we report on identification of a new quipazine derivative-compound (-(3-chlorobenzyl)-2-(piperazin-1-yl)quinolin-4-amine), which displayed antibacterial properties (MIC range 2-4 µg/mL) against CagA-positive reference strains associated with an increased risk of gastric cancer, including metronidazole-resistant ATCC 43504, clarithromycin-resistant ATCC 700684 and susceptible J99 strain, as well as clinical, multidrug-resistant isolate (3CML, resistant to clarithromycin, metronidazole and levofloxacin). Compound showed bacteriostatic activity (MBC/MIC ratio > 4), demonstrated antibiofilm-forming properties and prevented auto-aggregation of microbial cells. It also displayed an additive effect in ½ MIC (2 µg/mL) when administered with clarithromycin and/or metronidazole. Compound had no impact on gut microbiota reference strains of , , and as well as no hemolytic activity against sheep erythrocytes. Finally, by reducing the viability of the SNU-1 human gastric cancer cell line (IC = 3.28 μg/mL), compound might offer important implications regarding the oncogenic characteristics of + strains.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12250555 | PMC |
| http://dx.doi.org/10.3390/ijms26135997 | DOI Listing |
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