N-(2-arylmethylthio-4-chloro-5-methylbenzenesulfonyl)amide derivatives as potential antimicrobial agents - synthesis and biological studies

Beata Żołnowska , Jarosław Sławiński , Katarzyna Garbacz , Małgorzata Jarosiewicz , Anna Kawiak

Abstract

Rising resistance of pathogenic bacteria reduces the options of treating hospital and non-hospital bacterial infections. There is a need to search for newer chemotherapies that will show antimicrobial ability against planktonic cells as well as bacterial biofilms. We have synthesized a series of N-(2-arylmethylthio-4-chloro-5-methylbenzenesulfonyl)amides, namely, molecular hybrids, which include a 2-mercaptobenzenosulfonamide fragment and either cinnamic or cyclohexylpropionic acid residues. The antimicrobial activity of compounds 8–17 was evaluated on Gram-positive, Gram-negative bacteria and fungal species. Experiments took into account investigation of antibacterial activity against planktonic cells as well as biofilms. Compounds 8–17 showed high bacteriostatic activity against staphylococci, with the most active molecules 10 and 16 presenting low MIC values of 4–8 μg/mL against reference methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-sensitive S. aureus (MSSA) strains as well as clinical isolates. Compounds 10 and 16 also showed an ability to inhibit biofilms formed by MRSA and MSSA. The potential of 10 and 16 as antibiofilm agents was supported by cytotoxicity assays that indicated no cytotoxic effect either on normal cells of human keratinocytes or on human cancer cells, including cervical, colon, and breast cancer lines.
Author Beata Żołnowska
Beata Żołnowska,,
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, Jarosław Sławiński
Jarosław Sławiński,,
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, Katarzyna Garbacz
Katarzyna Garbacz,,
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, Małgorzata Jarosiewicz
Małgorzata Jarosiewicz,,
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, Anna Kawiak (IFB / IB / DBiotech)
Anna Kawiak,,
- Department of Biotechnology
Journal seriesInternational Journal of Molecular Sciences, ISSN 1422-0067, (N/A 140 pkt)
Issue year2020
Vol21
No1
Pages1-14
Publication size in sheets0.65
Article number210
Keywords in Englishbenzenesulfonamide, antibacterial, biofilm, synthesis, cytotoxicity, MRSA
ASJC Classification2700 General Medicine; 1312 Molecular Biology; 1503 Catalysis; 1604 Inorganic Chemistry; 1605 Organic Chemistry; 1606 Physical and Theoretical Chemistry; 1607 Spectroscopy; 1706 Computer Science Applications
DOIDOI:10.3390/ijms21010210
URL https://doi.org/10.3390/ijms21010210
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)140
Score sourcejournalList
ScoreMinisterial score = 140.0, 03-02-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.224; WoS Impact Factor: 2018 = 4.183 (2) - 2018=4.331 (5)
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