期刊
MOLECULES
卷 27, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/molecules27061930
关键词
thiazolidine-4-one; antibacterial; antifungal; microdilution method; docking; MurB; CYP51; MRC-5
资金
- Serbian Ministry of Education, Science and Technological Development [451-03-9/2021-14/200007]
- Deanship of Scientific Research of King Faisal University [160006]
This study reports the assessment of the antimicrobial and antifungal activity of twenty one 2,3-diaryl-thiazolidin-4-ones. All synthesized compounds showed varied antibacterial activity against six different bacteria and no cytotoxicity in human cells. S. Typhimurium was the most sensitive bacterium, while S. aureus was the most resistant. Some compounds exhibited better antifungal activity than reference drugs. Computational studies suggested that the antibacterial and antifungal actions may be due to the inhibition of E. coli Mur B and CYP51, respectively.
Herein, we report computational and experimental evaluations of the antimicrobial activity of twenty one 2,3-diaryl-thiazolidin-4-ones. All synthesized compounds exhibited an antibacterial activity against six Gram-positive and Gram-negative bacteria to different extents. Thus, the MIC was in the range of 0.008-0.24 mg/mL, while the MBC was 0.0016-0.48 mg/mL. The most sensitive bacterium was S. Typhimurium, whereas S. aureus was the most resistant. The best antibacterial activity was observed for compound 5 (MIC at 0.008-0.06 mg/mL). The three most active compounds 5, 8, and 15, as well as compound 6, which were evaluated against three resistant strains, MRSA, P. aeruginosa, and E. coli, were more potent against all bacterial strains used than ampicillin. The antifungal activity of some compounds exceeded or were equipotent with those of the reference antifungal agents bifonazole and ketoconazole. The best activity was expressed by compound 5. All compounds exhibited moderate to good drug-likeness scores ranging from -0.39 to 0.39. The docking studies indicated a probable involvement of E. coli Mur B inhibition in the antibacterial action, while CYP51 inhibition is likely responsible for the antifungal activity of the tested compounds. Finally, the assessment of cellular cytotoxicity of the compounds in normal human MRC-5 cells revealed that the compounds were not toxic.
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