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Zivna N, Hympanova M, Dolezal R, Markova A, Pulkrabkova L, Strakova H, Sleha R, Prchal L, Brozkova I, Motkova P, Sefrankova L, Soukup O, Marek J. Synthesis and broad-spectrum biocidal effect of novel gemini quaternary ammonium compounds. Bioorg Chem 2024; 151:107646. [PMID: 39032408 DOI: 10.1016/j.bioorg.2024.107646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 07/09/2024] [Accepted: 07/13/2024] [Indexed: 07/23/2024]
Abstract
Since the discovery of antimicrobial agents, the misuse of antibiotics has led to the emergence of bacterial strains resistant to both antibiotics and common disinfectants like quaternary ammonium compounds (QACs). A new class, 'gemini' QACs, which contain two polar heads, has shown promise. Octenidine (OCT), a representative of this group, is effective against resistant microorganisms but has limitations such as low solubility and high cytotoxicity. In this study, we developed 16 novel OCT derivatives. These compounds were subjected to in silico screening to predict their membrane permeation. Testing against nosocomial bacterial strains (G+ and G-) and their biofilms revealed that most compounds were highly effective against G+ bacteria, while compounds 7, 8, and 10-12 were effective against G- bacteria. Notably, compounds 6-8 were significantly more effective than OCT and BAC standards across the bacterial panel. Compound 12 stood out due to its low cytotoxicity and broad-spectrum antimicrobial activity, comparable to OCT. It also demonstrated impressive antifungal activity. Compound 1 was highly selective to fungi and four times more effective than OCT without its cytotoxicity. Several compounds, including 4, 6, 8, 9, 10, and 12, showed strong virucidal activity against murine cytomegalovirus and herpes simplex virus 1. In conclusion, these gemini QACs, especially compound 12, offer a promising alternative to current disinfectants, addressing emerging resistances with their enhanced antimicrobial, antifungal, and virucidal properties.
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Affiliation(s)
- Natalie Zivna
- Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Michaela Hympanova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Rafael Dolezal
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Aneta Markova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; Hospital Pharmacy, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Lenka Pulkrabkova
- Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Hana Strakova
- Department of Epidemiology, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic
| | - Radek Sleha
- Department of Epidemiology, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic
| | - Lukas Prchal
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Iveta Brozkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Petra Motkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Laura Sefrankova
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
| | - Ondrej Soukup
- Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - Jan Marek
- Department of Epidemiology, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic.
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2
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Pidany F, Kroustkova J, Jenco J, Breiterova KH, Muckova L, Novakova L, Kunes J, Fibigar J, Kucera T, Novak M, Sorf A, Hrabinova M, Pulkrabkova L, Janousek J, Soukup O, Jun D, Korabecny J, Cahlikova L. Carltonine-derived compounds for targeted butyrylcholinesterase inhibition. RSC Med Chem 2024; 15:1601-1625. [PMID: 38784455 PMCID: PMC11110763 DOI: 10.1039/d4md00060a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/16/2024] [Indexed: 05/25/2024] Open
Abstract
The investigation into human butyrylcholinesterase (hBChE) inhibitors as therapeutic agents for Alzheimer's disease (AD) holds significant promise, addressing both symptomatic relief and disease progression. In the pursuit of novel drug candidates with a selective BChE inhibition pattern, we focused on naturally occurring template structures, specifically Amaryllidaceae alkaloids of the carltonine-type. Herein, we explored a series of compounds implementing an innovative chemical scaffold built on the 3- and 4-benzyloxy-benzylamino chemotype. Notably, compounds 28 (hBChE IC50 = 0.171 ± 0.063 μM) and 33 (hBChE IC50 = 0.167 ± 0.018 μM) emerged as top-ranked hBChE inhibitors. In silico simulations elucidated the binding modes of these compounds within hBChE. CNS availability was predicted using the BBB score algorithm, corroborated by in vitro permeability assessments with the most potent derivatives. Compound 33 was also inspected for aqueous solubility, microsomal and plasma stability. Chemoinformatics analysis validated these hBChE inhibitors for oral administration, indicating favorable gastrointestinal absorption in compliance with Lipinski's and Veber's rules. Safety assessments, crucial for the chronic administration typical in AD treatment, were conducted through cytotoxicity testing on human neuroblastoma (SH-SY5Y) and hepatocellular carcinoma (HepG2) cell lines.
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Affiliation(s)
- Filip Pidany
- Faculty of Pharmacy in Hradec Kralove, Department of Pharmacognosy and Pharmaceutical Botany, Charles University Akademika Heyrovskeho 1203 500 05 Hradec Kralove Czech Republic
| | - Jana Kroustkova
- Faculty of Pharmacy in Hradec Kralove, Department of Pharmacognosy and Pharmaceutical Botany, Charles University Akademika Heyrovskeho 1203 500 05 Hradec Kralove Czech Republic
| | - Jaroslav Jenco
- Faculty of Pharmacy in Hradec Kralove, Department of Pharmacognosy and Pharmaceutical Botany, Charles University Akademika Heyrovskeho 1203 500 05 Hradec Kralove Czech Republic
| | - Katerina Hradiska Breiterova
- Faculty of Pharmacy in Hradec Kralove, Department of Pharmacognosy and Pharmaceutical Botany, Charles University Akademika Heyrovskeho 1203 500 05 Hradec Kralove Czech Republic
| | - Lubica Muckova
- Biomedical Research Center, University Hospital Hradec Kralove Sokolska 581 500 05 Hradec Kralove Czech Republic
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Lucie Novakova
- Faculty of Pharmacy in Hradec Kralove, Department of Analytical Chemistry, Charles University Akademika Heyrovskeho 1203 500 05 Hradec Kralove Czech Republic
| | - Jiri Kunes
- Faculty of Pharmacy in Hradec Kralove, Department of Bioorganic and Organic Chemistry, Charles University Akademika Heyrovskeho 1203 500 05 Hradec Kralove Czech Republic
| | - Jakub Fibigar
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Tomas Kucera
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Martin Novak
- Biomedical Research Center, University Hospital Hradec Kralove Sokolska 581 500 05 Hradec Kralove Czech Republic
| | - Ales Sorf
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Martina Hrabinova
- Biomedical Research Center, University Hospital Hradec Kralove Sokolska 581 500 05 Hradec Kralove Czech Republic
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Lenka Pulkrabkova
- Biomedical Research Center, University Hospital Hradec Kralove Sokolska 581 500 05 Hradec Kralove Czech Republic
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Jiri Janousek
- Biomedical Research Center, University Hospital Hradec Kralove Sokolska 581 500 05 Hradec Kralove Czech Republic
| | - Ondrej Soukup
- Biomedical Research Center, University Hospital Hradec Kralove Sokolska 581 500 05 Hradec Kralove Czech Republic
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Daniel Jun
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Jan Korabecny
- Biomedical Research Center, University Hospital Hradec Kralove Sokolska 581 500 05 Hradec Kralove Czech Republic
- Military Faculty of Medicine, Department of Toxicology and Military Pharmacy, University of Defence Trebesska 1575 500 01 Hradec Kralove Czech Republic
| | - Lucie Cahlikova
- Faculty of Pharmacy in Hradec Kralove, Department of Pharmacognosy and Pharmaceutical Botany, Charles University Akademika Heyrovskeho 1203 500 05 Hradec Kralove Czech Republic
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Misiachna A, Svobodova B, Netolicky J, Chvojkova M, Kleteckova L, Prchal L, Novak M, Hrabinova M, Kucera T, Muckova L, Moravcova Z, Karasova JZ, Pejchal J, Blazek F, Malinak D, Hakenova K, Krausova BH, Kolcheva M, Ladislav M, Korabecny J, Pahnke J, Vales K, Horak M, Soukup O. Phenoxytacrine derivatives: Low-toxicity neuroprotectants exerting affinity to ifenprodil-binding site and cholinesterase inhibition. Eur J Med Chem 2024; 266:116130. [PMID: 38218127 DOI: 10.1016/j.ejmech.2024.116130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/15/2024]
Abstract
Tacrine (THA), a long withdrawn drug, is still a popular scaffold used in medicinal chemistry, mainly for its good reactivity and multi-targeted effect. However, THA-associated hepatotoxicity is still an issue and must be considered in drug discovery based on the THA scaffold. Following our previously identified hit compound 7-phenoxytacrine (7-PhO-THA), we systematically explored the chemical space with 30 novel derivatives, with a focus on low hepatotoxicity, anticholinesterase action, and antagonism at the GluN1/GluN2B subtype of the NMDA receptor. Applying the down-selection process based on in vitro and in vivo pharmacokinetic data, two candidates, I-52 and II-52, selective GluN1/GluN2B inhibitors thanks to the interaction with the ifenprodil-binding site, have entered in vivo pharmacodynamic studies. Finally, compound I-52, showing only minor affinity to AChE, was identified as a lead candidate with favorable behavioral and neuroprotective effects using open-field and prepulse inhibition tests, along with scopolamine-based behavioral and NMDA-induced hippocampal lesion models. Our data show that compound I-52 exhibits low toxicity often associated with NMDA receptor ligands, and low hepatotoxicity, often related to THA-based compounds.
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Affiliation(s)
- Anna Misiachna
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic; Department of Physiology, Faculty of Science, Charles University in Prague, Albertov 6, 128 43, Prague, Czech Republic
| | - Barbora Svobodova
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic; Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 01, Hradec Kralove, Czech Republic
| | - Jakub Netolicky
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic
| | - Marketa Chvojkova
- National Institute of Mental Health, Topolova 748, 250 67, Klecany, Czech Republic
| | - Lenka Kleteckova
- National Institute of Mental Health, Topolova 748, 250 67, Klecany, Czech Republic
| | - Lukas Prchal
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic
| | - Martin Novak
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic
| | - Martina Hrabinova
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic; Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 01, Hradec Kralove, Czech Republic
| | - Tomas Kucera
- Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 01, Hradec Kralove, Czech Republic
| | - Lubica Muckova
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic; Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 01, Hradec Kralove, Czech Republic
| | - Zuzana Moravcova
- Faculty of Pharmacy in Hradec Králové, Charles University, Akademika, Heyrovskeho 1203, 50005, Hradec Králové, Czech Republic
| | - Jana Zdarova Karasova
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic; Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 01, Hradec Kralove, Czech Republic
| | - Jaroslav Pejchal
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic
| | - Filip Blazek
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
| | - David Malinak
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
| | - Kristina Hakenova
- National Institute of Mental Health, Topolova 748, 250 67, Klecany, Czech Republic; Third Faculty of Medicine, Charles University, Ruska 87, 100 00, Prague 10, Czech Republic
| | - Barbora Hrcka Krausova
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic
| | - Marharyta Kolcheva
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic
| | - Marek Ladislav
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic
| | - Jan Korabecny
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic; Department of Toxicology and Military Pharmacy, Military Faculty of Medicine, University of Defence, Trebesska 1575, 500 01, Hradec Kralove, Czech Republic
| | - Jens Pahnke
- Department of Neuro-/Pathology, University of Oslo & Oslo University Hospital, Oslo, Norway
| | - Karel Vales
- National Institute of Mental Health, Topolova 748, 250 67, Klecany, Czech Republic; Third Faculty of Medicine, Charles University, Ruska 87, 100 00, Prague 10, Czech Republic
| | - Martin Horak
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague, Czech Republic.
| | - Ondrej Soukup
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05, Hradec Kralove, Czech Republic.
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4
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Wang L, Zhong W, Liu B, Pranantyo D, Chan-Park MB. Cationic Carbon Monoxide-Releasing Polymers as Antimicrobial and Antibiofilm Agents by the Synergetic Activity. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41772-41782. [PMID: 37609827 DOI: 10.1021/acsami.3c02898] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Recent studies indicate that carbon monoxide-releasing molecules (CORMs), a class of organometallic compounds, exert antibacterial activities through the delivery of carbon monoxide (CO) molecules. We developed a new-class CO-delivery system by conjugating classical low-molecular-weight CORMs (i.e., [Ru(CO)3Cl2]2 and Mn(CO)5Br) onto a positively charged carrier, polyimidazolium (PIM), giving cationic CO-releasing polymers Ru@PIM and Mn@PIM, respectively. Compared with low-molecular-weight CORMs, our polymeric CO vehicles showed improved water solubility, reduced cytotoxicity, significantly extended CO-releasing duration, and enhanced antimicrobial ability against both planktonic and biofilm microorganisms. Ru@PIM and Mn@PIM inhibited the growth of a broad spectrum of free Gram-positive and Gram-negative bacteria as well as fungus with the lowest minimum inhibitory concentration (MIC) at 8 μg/mL. They were effective in preventing pathogenic Pseudomonas aeruginosa biofilm formation with biofilm reduction by more than 92% at 16 μg/mL and 99% at 32 μg/mL. They also demonstrated potent dispersal efficacy on recalcitrant well-established biofilms through a synergetic activity with a biofilm log10 reduction of 2.5-3.2 ≥ 64 μg/mL and nearly 2.0 at the concentration of as low as 16 μg/mL. This CO-releasing system may retain long-time antimicrobial ability after the complete release of CO molecules owing to the cationic structure. The novel CO-releasing polymers have great potential as antimicrobial and antibiofilm agents in biomedical applications.
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Affiliation(s)
- Liping Wang
- Centre for Antimicrobial Bioengineering, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Wenbin Zhong
- Centre for Antimicrobial Bioengineering, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Bo Liu
- Centre for Antimicrobial Bioengineering, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Dicky Pranantyo
- Centre for Antimicrobial Bioengineering, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Mary B Chan-Park
- Centre for Antimicrobial Bioengineering, School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
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Seferyan MA, Saverina EA, Frolov NA, Detusheva EV, Kamanina OA, Arlyapov VA, Ostashevskaya II, Ananikov VP, Vereshchagin AN. Multicationic Quaternary Ammonium Compounds: A Framework for Combating Bacterial Resistance. ACS Infect Dis 2023; 9:1206-1220. [PMID: 37161274 DOI: 10.1021/acsinfecdis.2c00546] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
During previous stages of research, high biocidal activity toward microorganism archival strains has been used as the main indicator in the development of new antiseptic formulations. Although this factor remains one of the most important characteristics of biocide efficiency, the scale of antimicrobial resistance spread causes serious concern. Therefore, focus shifts toward the development of formulations with a stable effect even in the case of prolonged contact with pathogens. Here, we introduce an original isocyanuric acid alkylation method with the use of available alkyl dichlorides, which opened access to a wide panel of multi-QACs with alkyl chains of various lengths between the nitrogen atoms of triazine and pyridine cycles. We used a complex approach for the resulting series of 17 compounds, including their antibiofilm properties, bacterial tolerance development, and antimicrobial activity toward multiresistant pathogenic strains. As a result of these efforts, available compounds have shown higher levels of antibacterial activity against ESKAPE pathogens than widely used commercial QACs. Hit compounds possessed high activity toward clinical bacterial strains and have also demonstrated a long-term biocidal effect without significant development of microorganism tolerance. The overall results indicated a high level of antibacterial activity and the broad application prospects of multi-QACs based on isocyanuric acid against multiresistant bacterial strains.
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Affiliation(s)
- Mary A Seferyan
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, 119991 Moscow, Russia
| | - Evgeniya A Saverina
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, 119991 Moscow, Russia
- Tula State University, Lenin pr. 92, 300012 Tula, Russia
| | - Nikita A Frolov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, 119991 Moscow, Russia
| | - Elena V Detusheva
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, 119991 Moscow, Russia
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279 Serpukhov, Moscow Region, Russia
| | | | | | - Irina I Ostashevskaya
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, 119991 Moscow, Russia
- Faculty of Chemistry, Moscow State University, Leninskie Gory 1, 119991 Moscow, Russia
| | - Valentine P Ananikov
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky pr. 47, 119991 Moscow, Russia
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6
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Saverina EA, Frolov NA, Kamanina OA, Arlyapov VA, Vereshchagin AN, Ananikov VP. From Antibacterial to Antibiofilm Targeting: An Emerging Paradigm Shift in the Development of Quaternary Ammonium Compounds (QACs). ACS Infect Dis 2023; 9:394-422. [PMID: 36790073 DOI: 10.1021/acsinfecdis.2c00469] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
In a previous development stage, mostly individual antibacterial activity was a target in the optimization of biologically active compounds and antiseptic agents. Although this targeting is still valuable, a new trend has appeared since the discovery of superhigh resistance of bacterial cells upon their aggregation into groups. Indeed, it is now well established that the great majority of pathogenic germs are found in the environment as surface-associated microbial communities called biofilms. The protective properties of biofilms and microbial resistance, even to high concentrations of biocides, cause many chronic infections in medical settings and lead to serious economic losses in various areas. A paradigm shift from individual bacterial targeting to also affecting more complex cellular frameworks is taking place and involves multiple strategies for combating biofilms with compounds that are effective at different stages of microbiome formation. Quaternary ammonium compounds (QACs) play a key role in many of these treatments and prophylactic techniques on the basis of both the use of individual antibacterial agents and combination technologies. In this review, we summarize the literature data on the effectiveness of using commercially available and newly synthesized QACs, as well as synergistic treatment techniques based on them. As an important focus, techniques for developing and applying antimicrobial coatings that prevent the formation of biofilms on various surfaces over time are discussed. The information analyzed in this review will be useful to researchers and engineers working in many fields, including the development of a new generation of applied materials; understanding biofilm surface growth; and conducting research in medical, pharmaceutical, and materials sciences. Although regular studies of antibacterial activity are still widely conducted, a promising new trend is also to evaluate antibiofilm activity in a comprehensive study in order to meet the current requirements for the development of highly needed practical applications.
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Affiliation(s)
- Evgeniya A Saverina
- Tula State University, Lenin pr. 92, 300012 Tula, Russia.,N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, 119991 Moscow, Russia
| | - Nikita A Frolov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, 119991 Moscow, Russia
| | | | | | - Anatoly N Vereshchagin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, 119991 Moscow, Russia
| | - Valentine P Ananikov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky pr. 47, 119991 Moscow, Russia
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Shtyrlin NV, Vafina RM, Bulatova ES, Sapozhnikov SV, Kalugin LE, Garipov MR, Yandimirova AS, Gnezdilov OI, Nikishova TV, Agafonova MN, Kazakova RR, Shtyrlin YG. Synthesis and antibacterial activity of quaternary ammonium compounds based on 3-hydroxypyridine. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3695-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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8
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Antiseptic Materials on the Base of Polymer Interpenetrating Networks Microgels and Benzalkonium Chloride. Int J Mol Sci 2022; 23:ijms23084394. [PMID: 35457209 PMCID: PMC9027481 DOI: 10.3390/ijms23084394] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/08/2022] [Accepted: 04/12/2022] [Indexed: 12/26/2022] Open
Abstract
Polymer microgels, including those based on interpenetrating networks (IPNs), are currently vastly studied, and their practical applications are a matter of thriving research. In this work, we show the perspective for the use of polyelectrolyte IPN microgels either as scavengers or carriers of antiseptic substances. Here, we report that poly-N-isopropylacrylamide/polyacrylic acid IPN microgels can efficiently absorb the common bactericidal and virucidal compound benzalkonium chloride. The particles can form a stable aqueous colloidal suspension or be used as building blocks for soft free-standing films. Both materials showed antiseptic efficacy on the examples of Bacillus subtilis and S. aureus, which was approximately equal to the commercial antibiotic. Such polymer biocides can be used as liquid disinfectants, stable surface coatings, or parts of biomedical devices and can enhance the versatility of the possible practical applications of polymer microgels.
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9
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Dubinin MV, Semenova AA, Ilzorkina AI, Markelova NY, Penkov NV, Shakurova ER, Belosludtsev KN, Parfenova LV. New quaternized pyridinium derivatives of betulin: Synthesis and evaluation of membranotropic properties on liposomes, pro- and eukaryotic cells, and isolated mitochondria. Chem Biol Interact 2021; 349:109678. [PMID: 34600868 DOI: 10.1016/j.cbi.2021.109678] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/07/2021] [Accepted: 09/29/2021] [Indexed: 10/20/2022]
Abstract
The present study describes the synthesis of pyridinium derivatives of betulin, including new 4-methyl- and 3,5-methyl-pyridinium analogs, their effect on artificial membrane systems (liposomes), cytotoxicity in models of prokaryotic (E. coli K-12 MG1655) and eukaryotic cells (rat thymocytes), as well as their effect on the functioning of membrane systems of rat liver mitochondria. We have shown that the presence of methyl groups in the pyridine ring of compounds determines the ability of the derivatives to effectively permeabilize the artificial membrane of lecithin liposomes for the fluorescent probe sulforhodamine B. The 4-methyl- and 3,5-methyl-pyridinium analogs inhibit the growth of E. coli K-12 MG1655 and, at the same time, did not have a cytotoxic effect on rat thymocytes. However, in the latter case, we noted a decrease in the mitochondrial potential of cells. The studied compounds reduced the functional activity of mitochondria, suppressing the activity of complexes of the respiratory chain and reducing the membrane potential. In addition, compounds containing methyl groups in the p- and m-positions of the pyridine ring were also able to permeabilize the inner membrane of mitochondria, causing them to swell. In this case, the most lipophilic compound containing two methyl substituents at the m-position of the pyridine fragment was most effective and had a protonophore effect on mitochondria. The paper discusses the dependence of the membranotropic and biological actions of the quaternized pyridine derivatives of betulin on their structure and lipophilicity.
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Affiliation(s)
- Mikhail V Dubinin
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia.
| | - Alena A Semenova
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia
| | - Anna I Ilzorkina
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
| | - Natalia Y Markelova
- Institute of Cell Biophysics, Russian Academy of Sciences, PSCBR RAS, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
| | - Nikita V Penkov
- Institute of Cell Biophysics, Russian Academy of Sciences, PSCBR RAS, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
| | - Elvira R Shakurova
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Prospekt Oktyabrya 141, Ufa, Republic of Bashkortostan, 450075, Russia
| | - Konstantin N Belosludtsev
- Mari State University, pl. Lenina 1, Yoshkar-Ola, Mari El, 424001, Russia; Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, Institutskaya 3, Pushchino, Moscow Region, 142290, Russia
| | - Lyudmila V Parfenova
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Prospekt Oktyabrya 141, Ufa, Republic of Bashkortostan, 450075, Russia
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10
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Amide-based xanthine oxidase inhibitors bearing an N-(1-alkyl-3-cyano-1H-indol-5-yl) moiety: Design, synthesis and structure-activity relationship investigation. Bioorg Chem 2021; 117:105417. [PMID: 34673452 DOI: 10.1016/j.bioorg.2021.105417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/21/2021] [Accepted: 10/06/2021] [Indexed: 12/29/2022]
Abstract
Our previous work identified a promising isonicotinamide based xanthine oxidase (XO) inhibitor, N-(3-cyano-4-((2-cyanobenzyl)oxy)phenyl)isonicotinamide (1), and concluded that amide is an effective linker in exploring the XO inhibitor chemical space that is completely different from the five-membered ring framework of febuxostat and topiroxostat. Indole, an endogenous bioactive substance and a popular drug construction fragment, was involved in the structural optimization campaign of the present effort. After the installation of some functional groups, N-(1-alkyl-3-cyano-1H-indol-5-yl) was generated and employed to mend the missing H-bond interaction between the 3'-cyano of 1 and Asn768 residue of XO by shortening their distance. In this context, eight kinds of heterocyclic aromatic amide chemotypes were rationally designed and synthesized to investigate the structure-activity relationship (SAR) of amide-based XO inhibitors. The optimized compound a6 (IC50 = 0.018 μM) exhibits 17.2-fold improved potency than the initial compound 1 (IC50 = 0.31 μM). Its potency is comparable to that of topiroxostat (IC50 = 0.013 μM). Molecular docking and molecular dynamics studies proved the existence of the stable H-bond between the cyano group and the Asn768 residue. Moreover, oral administration of a6 (11.8 mg/kg) could effectively reduce serum uric acid levels in an acute hyperuricemia rat model. Liver microsomal stability assay illustrated that compound a6 possesses well metabolic stability in rat liver microsomes. However, the in vivo potency of a6 was much lower than that of topiroxostat, which may be explained by the poor absorption found in the parallel artificial membrane permeability assay (PAMPA). In addition, 6a has non-cytotoxicity against normal cell lines MCF10A and 16HBE. Taken together, this work culminated in the identification of compound 6a as an excellent lead for further exploration of amide-based XO inhibitors.
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11
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Tu S, Zhang TJ, Zhang Y, Zhang X, Zhang ZH, Meng FH. N-(3-cyano-1H-indol-5-yl)isonicotinamide and N-(3-cyano-1H-indol-5-yl)-1H-benzo[d]imidazole-5-carboxamide derivatives: Novel amide-based xanthine oxidase inhibitors. Bioorg Chem 2021; 115:105181. [PMID: 34329991 DOI: 10.1016/j.bioorg.2021.105181] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 12/16/2022]
Abstract
Our previous work demonstrated that amide is an efficient linker to explore chemical space of xanthine oxidase (XO) inhibitors that are entirely different from febuxostat and topiroxostat. In this effort, with 3-cyano-1H-indol-5-yl as a key moiety, two series of amide-based XO inhibitors, N-(3-cyano-1H-indol-5-yl)isonicotinamides (2a-w) and N-(3-cyano-1H-indol-5-yl)-1H-benzo[d]imidazole-5-carboxamides (3a-i), were designed and synthesized. The structure-activity relationship investigation identified N-(3-cyano-1-cyclopentyl-1H-indol-5-yl)-1H-benzo[d]imidazole-5-carboxamide (3i, IC50 = 0.62 μM) as the most promising compound, with 14.4-fold higher in vitro inhibitory potency than allopurinol (IC50 = 8.91 μM). Molecular simulations provided reasonable interaction modes for the representative compounds. Furthermore, in vivo activity evaluation demonstrated that compound 3i (oral dose of 12.8 mg/kg) has obviously hypouricemic effect on a potassium oxonate induced hyperuricemic rat model. Cytotoxicity assay and ADME prediction also supported that 3i is an excellent lead for further exploration of amide-based XO inhibitors.
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Affiliation(s)
- Shun Tu
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang 110122, China
| | - Ting-Jian Zhang
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang 110122, China
| | - Yi Zhang
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang 110122, China
| | - Xu Zhang
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang 110122, China
| | - Zhen-Hao Zhang
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang 110122, China
| | - Fan-Hao Meng
- School of Pharmacy, China Medical University, 77 Puhe Road, North New Area, Shenyang 110122, China.
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12
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Markova A, Hympanova M, Matula M, Prchal L, Sleha R, Benkova M, Pulkrabkova L, Soukup O, Krocova Z, Jun D, Marek J. Synthesis and Decontamination Effect on Chemical and Biological Agents of Benzoxonium-Like Salts. TOXICS 2021; 9:toxics9090222. [PMID: 34564373 PMCID: PMC8469817 DOI: 10.3390/toxics9090222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 09/02/2021] [Accepted: 09/04/2021] [Indexed: 11/22/2022]
Abstract
Benzoxonium chloride belongs to the group of quaternary ammonium salts, which have been widely used for decades as disinfectants because of their high efficacy, low toxicity, and thermal stability. In this study, we have prepared the C10-C18 set of benzoxonium-like salts to evaluate the effect of their chemical and biological decontamination capabilities. In particular, biocidal activity against a panel of bacterial strains including Staphylococcus aureus in biofilm form was screened. In addition, the most promising compounds were successfully tested against Francisella tularensis as a representative of potential biological warfare agents. From a point of view of chemical warfare protection, the efficiency of BOC-like compounds to degrade the organophosphate simulant fenitrothion was examined. Notwithstanding that no single compound with universal effectiveness was identified, a mixture of only two compounds from this group would be able to satisfactorily cover the proposed decontamination spectrum. In addition, the compounds were evaluated for their cytotoxicity as a basic safety parameter for potential use in practice. In summary, the dual effect on chemical and biological agents of benzoxonium-like salts offer attractive potential as active components of decontamination mixtures in the case of a terrorist threat or chemical or biological accidents.
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Affiliation(s)
- Aneta Markova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (A.M.); (M.H.); (L.P.); (M.B.); (L.P.); (O.S.)
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; (M.M.); (D.J.)
| | - Michaela Hympanova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (A.M.); (M.H.); (L.P.); (M.B.); (L.P.); (O.S.)
- Department of Epidemiology, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic;
| | - Marek Matula
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; (M.M.); (D.J.)
| | - Lukas Prchal
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (A.M.); (M.H.); (L.P.); (M.B.); (L.P.); (O.S.)
| | - Radek Sleha
- Department of Epidemiology, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic;
| | - Marketa Benkova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (A.M.); (M.H.); (L.P.); (M.B.); (L.P.); (O.S.)
| | - Lenka Pulkrabkova
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (A.M.); (M.H.); (L.P.); (M.B.); (L.P.); (O.S.)
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; (M.M.); (D.J.)
| | - Ondrej Soukup
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (A.M.); (M.H.); (L.P.); (M.B.); (L.P.); (O.S.)
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; (M.M.); (D.J.)
| | - Zuzana Krocova
- Department of Molecular Pathology and Biology, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic;
| | - Daniel Jun
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic; (M.M.); (D.J.)
| | - Jan Marek
- Biomedical Research Centre, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (A.M.); (M.H.); (L.P.); (M.B.); (L.P.); (O.S.)
- Department of Epidemiology, Faculty of Military Health Sciences, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic;
- Correspondence: ; Tel.: +420-495-833-447
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The Antimicrobial Mode of Action of Maltol and Its Synergistic Efficacy with Selected Cationic Surfactants. COSMETICS 2021. [DOI: 10.3390/cosmetics8030086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Maltol, mostly used as a flavoring molecule, also has various potential applications as a biomedical compound. Despite its extensive use in the food industry, maltol’s antimicrobial activity was evaluated only briefly, and was suggested to be insufficient on its own. Recently, we have shown that maltol can be used in conjunction with cationic surfactant species to receive higher activity against contaminant microorganisms. In this paper, we have broadened the antimicrobial efficacy studies and evidenced maltol’s mode of action against Gram-negative, Gram-positive bacteria, and fungi. In addition, to increase its efficacy, blends of maltol and two selected cationic surfactants, dodecyl-dimethyl-ammonium chloride (DDAC) and polyquaternium 80 (P-80), were appraised for their activity. Broad efficacy studies revealed synergistic interactions between maltol and both cationic surfactants against most of the tested microorganisms. Electron microscopy images were used to evaluate the microorganisms’ morphology following treatment, pinpointing the specific cell wall damage caused by each of the compounds. Our findings indicate that maltol’s effect on the microbial cell wall can be complemented by catalytic amounts of selected cationic surfactants to enhance and extend its activity. Such a solution can be used as a broad-spectrum preservative for personal care products in cosmetic applications.
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14
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QSAR-based physicochemical properties of isothiocyanate antimicrobials against gram-negative and gram-positive bacteria. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111222] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Salajkova S, Havel F, Sramek M, Novotny F, Malinak D, Dolezal R, Prchal L, Benkova M, Soukup O, Musilek K, Kuca K, Bartek J, Proska J, Zarska M, Hodny Z. The Effect of Chemical Structure of OEG Ligand Shells with Quaternary Ammonium Moiety on the Colloidal Stabilization, Cellular Uptake and Photothermal Stability of Gold Nanorods. Int J Nanomedicine 2021; 16:3407-3427. [PMID: 34040371 PMCID: PMC8140906 DOI: 10.2147/ijn.s304953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/17/2021] [Indexed: 11/24/2022] Open
Abstract
PURPOSE Plasmonic photothermal cancer therapy by gold nanorods (GNRs) emerges as a promising tool for cancer treatment. The goal of this study was to design cationic oligoethylene glycol (OEG) compounds varying in hydrophobicity and molecular electrostatic potential as ligand shells of GNRs. Three series of ligands with different length of OEG chain (ethylene glycol units = 3, 4, 5) and variants of quaternary ammonium salts (QAS) as terminal functional group were synthesized and compared to a prototypical quaternary ammonium ligand with alkyl chain - (16-mercaptohexadecyl)trimethylammonium bromide (MTAB). METHODS Step-by-step research approach starting with the preparation of compounds characterized by NMR and HRMS spectra, GNRs ligand exchange evaluation through characterization of cytotoxicity and GNRs cellular uptake was used. A method quantifying the reshaping of GNRs was applied to determine the effect of ligand structure on the heat transport from GNRs under fs-laser irradiation. RESULTS Fourteen out of 18 synthesized OEG compounds successfully stabilized GNRs in the water. The colloidal stability of prepared GNRs in the cell culture medium decreased with the number of OEG units. In contrast, the cellular uptake of OEG+GNRs by HeLa cells increased with the length of OEG chain while the structure of the QAS group showed a minor role. Compared to MTAB, more hydrophilic OEG compounds exhibited nearly two order of magnitude lower cytotoxicity in free state and provided efficient cellular uptake of GNRs close to the level of MTAB. Regarding photothermal properties, OEG compounds evoked the photothermal reshaping of GNRs at lower peak fluence (14.8 mJ/cm2) of femtosecond laser irradiation than the alkanethiol MTAB. CONCLUSION OEG+GNRs appear to be optimal for clinical applications with systemic administration of NPs not-requiring irradiation at high laser intensity such as drug delivery and photothermal therapy inducing apoptosis.
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Affiliation(s)
- Sarka Salajkova
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Filip Havel
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Department of Physical Electronics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Michal Sramek
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Filip Novotny
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - David Malinak
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Rafael Dolezal
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Lukas Prchal
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Marketa Benkova
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Ondrej Soukup
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Kamil Musilek
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Kamil Kuca
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Jiri Bartek
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Genome Integrity Unit, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Medical Biochemistry and Biophysics, Science for Life Laboratory, Division of Genome Biology, Karolinska Institute, Stockholm, Sweden
| | - Jan Proska
- Department of Physical Electronics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Monika Zarska
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Zdenek Hodny
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
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Gao M, Quan X, Wang J, Wang Z. Preparation and Characterization of Coatings Incorporated with Poly(aniline- co-nitroaniline) Nanoparticles Having Antifouling and Anticorrosion Behavior. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c05329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min Gao
- CERC, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, PR China
| | - Xiaodong Quan
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, PR China
- Zhuhai Nanometals Technology Co., Ltd, Zhuhai 519000, PR China
| | - Jixiao Wang
- CERC, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, PR China
| | - Zhi Wang
- CERC, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, PR China
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17
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Hympanova M, Terlep S, Markova A, Prchal L, Dogsa I, Pulkrabkova L, Benkova M, Marek J, Stopar D. The Antibacterial Effects of New N-Alkylpyridinium Salts on Planktonic and Biofilm Bacteria. Front Microbiol 2020; 11:573951. [PMID: 33193183 PMCID: PMC7606276 DOI: 10.3389/fmicb.2020.573951] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 09/28/2020] [Indexed: 12/03/2022] Open
Abstract
An increasing microbial resistance to known antibiotics raises a demand for new antimicrobials. In this study the antimicrobial properties of a series of new N-Alkylpyridinium quaternary ammonium compounds (QACs) with varying alkyl chain lengths were evaluated for several nosocomial pathogens. The chemical identities of the new QACs were determined by NMR, LC-MS, and HRMS. All the planktonic bacteria tested were susceptible to the new QACs as evaluated by MIC and MBC assays. The antimicrobial effect was most pronounced against Staphylococcus aureus clinical isolates. Live/dead staining CLSM was used to test the effectiveness of the QACs in biofilms. The effectiveness was up to 10-fold lower than in the plankton. When QACs were used as irrigants in Er:YAG – SSP photoacoustic steaming, their effectiveness significantly increased. The combined use of irrigants and photoacoustic streaming increased biofilm removal from the surface and increased the killing rate of the cells remaining on the surface. This may allow for a shorter chemical exposure time and lower dosage of QACs used in applications. The results demonstrate that the new QACs have potential to be applied as antibacterial compounds effective against planktonic and biofilm bacteria as well as irrigants in removal of difficult-to-reach biofilms.
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Affiliation(s)
- Michaela Hympanova
- Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czechia.,Department of Epidemiology, Faculty of Military Health Sciences, University of Defence in Brno, Brno, Czechia
| | | | - Aneta Markova
- Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czechia.,Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Brno, Czechia
| | - Lukáš Prchal
- Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czechia
| | - Iztok Dogsa
- Department of Microbiology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Lenka Pulkrabkova
- Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czechia.,Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence in Brno, Brno, Czechia
| | - Marketa Benkova
- Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czechia
| | - Jan Marek
- Biomedical Research Centre, University Hospital Hradec Kralove, Hradec Kralove, Czechia.,Department of Epidemiology, Faculty of Military Health Sciences, University of Defence in Brno, Brno, Czechia
| | - David Stopar
- Department of Microbiology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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18
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Zhang Y, Zhang TJ, Tu S, Zhang ZH, Meng FH. Identification of Novel Src Inhibitors: Pharmacophore-Based Virtual Screening, Molecular Docking and Molecular Dynamics Simulations. Molecules 2020; 25:molecules25184094. [PMID: 32911607 PMCID: PMC7571137 DOI: 10.3390/molecules25184094] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/02/2020] [Accepted: 09/05/2020] [Indexed: 02/01/2023] Open
Abstract
Src plays a crucial role in many signaling pathways and contributes to a variety of cancers. Therefore, Src has long been considered an attractive drug target in oncology. However, the development of Src inhibitors with selectivity and novelty has been challenging. In the present study, pharmacophore-based virtual screening and molecular docking were carried out to identify potential Src inhibitors. A total of 891 molecules were obtained after pharmacophore-based virtual screening, and 10 molecules with high docking scores and strong interactions were selected as potential active molecules for further study. Absorption, distribution, metabolism, elimination and toxicity (ADMET) property evaluation was used to ascertain the drug-like properties of the obtained molecules. The proposed inhibitor–protein complexes were further subjected to molecular dynamics (MD) simulations involving root-mean-square deviation and root-mean-square fluctuation to explore the binding mode stability inside active pockets. Finally, two molecules (ZINC3214460 and ZINC1380384) were obtained as potential lead compounds against Src kinase. All these analyses provide a reference for the further development of novel Src inhibitors.
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Topkaya SN, Karasakal A, Cetin AE, Parlar S, Alptüzün V. Electrochemical Characteristics of a Novel Pyridinium Salt as a Candidate Drug Molecule and Its Interaction with DNA. ELECTROANAL 2020. [DOI: 10.1002/elan.202000012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Seda Nur Topkaya
- Department of Analytical ChemistryFaculty of PharmacyIzmir Katip Celebi University Izmir Turkey
| | - Ayça Karasakal
- Department of ChemistryFaculty of Science and LettersNamık Kemal University Tekirdag Turkey
| | | | - Sülünay Parlar
- Department of Pharmaceutical ChemistryFaculty of PharmacyEge University Izmir Turkey
| | - Vildan Alptüzün
- Department of Pharmaceutical ChemistryFaculty of PharmacyEge University Izmir Turkey
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The wide-spectrum antimicrobial effect of novel N-alkyl monoquaternary ammonium salts and their mixtures; the QSAR study against bacteria. Eur J Med Chem 2020; 206:112584. [PMID: 32853858 DOI: 10.1016/j.ejmech.2020.112584] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/05/2020] [Accepted: 06/14/2020] [Indexed: 11/23/2022]
Abstract
Quaternary ammonium salts (QASs) have been widely used for disinfection purposes because of their low price, high efficacy and low human toxicity for decades. However, precise mechanisms of action nor the powerful versatile agent against all antimicrobial species are known. In this study we have prepared 43 novel N-alkyl monoquaternary ammonium salts including 7 N,N-dialkyl monoquaternary ammonium salts differing bearing alkyl chain either of 12, 14 or 16 carbons. Together with 15 already published QASs we have studied the antimicrobial efficacy of all water-soluble compounds together with standard benzalkonium salts against Gram-positive (G+) and Gram-negative (G-) bacteria, anaerobic spore-forming Cl. difficile, yeasts, filamentous fungi and enveloped Varicella zoster virus (VZV). To address the mechanism of action, lipophilicity seems to be a key parameter which determines antimicrobial efficacy, however, exceptions are likely to occur and therefore QSAR analysis on the efficacy against G+ and G- bacteria was applied. We showed that antibacterial activity is higher when the molecule is larger, more lipophilic, less polar, and contains fewer oxygen atoms, fewer methyl groups bound to heteroatoms or fewer hydrogen atoms bound to polarized carbon atoms. In addition, from an application point of view, we have formulated mixtures, on the basis of obtained efficiency of individual compounds, in order to receive wide-spectrum agent. All formulated mixtures completely eradicated tested G+ and G- strains, including the multidrug-resistant P. aeruginosa as well as in case of yeasts. However, effect on A. fumigatus, Cl. difficile and VZV the exposition towards mixture resulted in significant reduction only. Finally, 3 out of 4 formulated mixtures were safer than reference commercial agent based on benzalkonium salts only in the skin irritation test using reconstructed human epidermidis.
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Salajkova S, Benkova M, Marek J, Sleha R, Prchal L, Malinak D, Dolezal R, Sepčić K, Gunde-Cimerman N, Kuca K, Soukup O. Wide-Antimicrobial Spectrum of Picolinium Salts. Molecules 2020; 25:E2254. [PMID: 32403238 PMCID: PMC7248777 DOI: 10.3390/molecules25092254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/05/2020] [Accepted: 05/08/2020] [Indexed: 01/27/2023] Open
Abstract
Nosocomial infections, which greatly increase morbidity among hospitalized patients, together with growing antibiotic resistance still encourage many researchers to search for novel antimicrobial compounds. Picolinium salts with different lengths of alkyl chains (C12, C14, C16) were prepared by Menshutkin-like reaction and evaluated with respect to their biological activity, i.e., lipophilicity and critical micellar concentration. Picolinium salts with C14 and C16 side chains achieved similar or even better results when in terms of antimicrobial efficacy than benzalkoniums; notably, their fungicidal efficiency was substantially more potent. The position of the methyl substituent on the aromatic ring does not seem to affect antimicrobial activity, in contrast to the effect of length of the N-alkyl chain. Concurrently, picolinium salts exhibited satisfactory low cytotoxicity against mammalian cells, i.e., lower than that of benzalkonium compounds, which are considered as safe.
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Affiliation(s)
- Sarka Salajkova
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Marketa Benkova
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
- Department of Epidemiology, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic;
| | - Jan Marek
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
- Department of Epidemiology, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic;
| | - Radek Sleha
- Department of Epidemiology, University of Defence in Brno, Trebesska 1575, 500 05 Hradec Kralove, Czech Republic;
| | - Lukas Prchal
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
| | - David Malinak
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Rafael Dolezal
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Kristina Sepčić
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (K.S.); (N.G.-C.)
| | - Nina Gunde-Cimerman
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (K.S.); (N.G.-C.)
| | - Kamil Kuca
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Ondrej Soukup
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic; (Sa.S.); (M.B.); (J.M.); (L.P.); (D.M.); (R.D.)
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Salajkova S, Sramek M, Malinak D, Havel F, Musilek K, Benkova M, Soukup O, Vasicova P, Prchal L, Dolezal R, Hodny Z, Bartek J, Zarska M, Kuca K. Highly hydrophilic cationic gold nanorods stabilized by novel quaternary ammonium surfactant with negligible cytotoxicity. JOURNAL OF BIOPHOTONICS 2019; 12:e201900024. [PMID: 31298802 DOI: 10.1002/jbio.201900024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 07/10/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
The photothermal cancer therapy using cationic gold nanorods (GNRs) stabilized by quaternary ammonium salts (QAS) have a great potential to enhance conventional cancer treatment as it promises the effective eradication of cancer cells including cells resistant to radio- and chemo-therapy and the stimulation of anti-tumor immune response. However, as the cytotoxicity of the conventional alkanethiol-QAS compounds limits their utility in medicine, here we developed GNRs modified by novel highly hydrophilic cationic surfactant composed of the quaternary ammonium group and ethylene glycol chain N,N,N-trimethyl-3,6,9,12,15-pentaoxaheptadecyl-17-sulfanyl-1-ammonium bromide (POSAB) showing insignificant cytotoxicity in the free state. Surface modification of GNRs by POSAB allowed to prepare nanoparticles with good stability in water, high cellular uptake and localization in lysosomes that are a promising alternative to alkanethiol-stabilized GNRs especially for biomedical applications.
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Affiliation(s)
- Sarka Salajkova
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence, Hradec Kralove, Czech Republic
| | - Michal Sramek
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - David Malinak
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Filip Havel
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Department of Physical Electronics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Kamil Musilek
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Marketa Benkova
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Epidemiology, Faculty of Military Health Sciences, University of Defence, Hradec Kralove, Czech Republic
| | - Ondrej Soukup
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Pavla Vasicova
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Lukas Prchal
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Rafael Dolezal
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Zdenek Hodny
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Jiri Bartek
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Genome Integrity Unit, Danish Cancer Society Research Center, Copenhagen, Denmark
- Department of Medical Biochemistry and Biophysics, Science For Life Laboratory, Division of Genome Biology, Karolinska Institute, Solna, Sweden
| | - Monika Zarska
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Prague, Czech Republic
- Charles University, First Faculty of Medicine, Prague, Czech Republic
| | - Kamil Kuca
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic
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Synthesis, biological evaluation and structure-activity relationships of self-assembled and solubilization properties of amphiphilic quaternary ammonium derivatives of quinuclidine. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.10.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Zhu W, Liu F, He J. Effect of polymerizable quaternary ammonium monomer MEIM-x's alkyl chain length and content on bone cement's antibacterial activity and physicochemical properties. J Mech Behav Biomed Mater 2018; 87:279-287. [DOI: 10.1016/j.jmbbm.2018.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/03/2018] [Accepted: 08/05/2018] [Indexed: 01/22/2023]
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Ranjan P, Athar M, Rather H, Vijayakrishna K, Vasita R, Jha PC. Appraisal of 1‐Butylimidazole‐Derived Ionic Liquids as Anthelmintic Agents: An Experimental and In Silico Approach. ChemistrySelect 2018. [DOI: 10.1002/slct.201800402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Prabodh Ranjan
- CCG@CUG, School of Chemical SciencesCentral University of Gujarat, Sector-30 Gandhinagar-382030, Gujarat India
| | - Mohd Athar
- CCG@CUG, School of Chemical SciencesCentral University of Gujarat, Sector-30 Gandhinagar-382030, Gujarat India
| | - Hilal Rather
- School of Life SciencesCentral University of Gujarat, Sector-30 Gandhinagar-382030, Gujarat India
| | - Kari Vijayakrishna
- Department of ChemistrySchool of Advanced SciencesVIT University Vellore-632014, Tamil Nadu India
| | - Rajesh Vasita
- School of Life SciencesCentral University of Gujarat, Sector-30 Gandhinagar-382030, Gujarat India
| | - Prakash C. Jha
- CCG@CUGCentre for Applied ChemistryCentral University of Gujarat, Sector-30 Gandhinagar-382030, Gujarat India
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QSAR-based molecular signatures of prenylated (iso)flavonoids underlying antimicrobial potency against and membrane-disruption in Gram positive and Gram negative bacteria. Sci Rep 2018; 8:9267. [PMID: 29915354 PMCID: PMC6006161 DOI: 10.1038/s41598-018-27545-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/05/2018] [Indexed: 12/27/2022] Open
Abstract
Prenylated flavonoids and isoflavonoids are phytochemicals with remarkable antibacterial activity. In this study, 30 prenylated (iso)flavonoids were tested against Listeria monocytogenes and Escherichia coli (the latter in combination with an efflux pump inhibitor). Minimum inhibitory concentrations of the most active compounds ranged between 6.3–15.0 µg/mL. Quantitative structure-activity relationships (QSAR) analysis was performed and linear regression models were proposed with R2 between 0.77–0.80, average R2m between 0.70–0.75, Q2LOO between 0.66–0.69, and relatively low amount of descriptors. Shape descriptors (related to flexibility and globularity), together with hydrophilic/hydrophobic volume and surface area descriptors, were identified as important molecular characteristics related to activity. A 3D pharmacophore model explaining the effect of the prenyl position on the activity of compounds was developed for each bacterium. These models predicted active compounds with an accuracy of 71–88%. With regard to the mode of action, good antibacterial prenylated (iso)flavonoids with low relative hydrophobic surface area caused remarkable membrane permeabilization, whereas those with higher relative hydrophobic surface area did not. Based on the QSAR and membrane permeabilization studies, the mode of action of antibacterial prenylated (iso)flavonoids was putatively rationalized.
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27
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Doležal R, Karásková N, Musil K, Novák M, Maltsevskaya NV, Maliňák D, Kolář K, Soukup O, Kuča K, Žďárová Karasová J. Characterization of the Penetration of the Blood–Brain Barrier by High-Performance Liquid Chromatography (HPLC) Using a Stationary Phase with an Immobilized Artificial Membrane. ANAL LETT 2018. [DOI: 10.1080/00032719.2018.1424175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Rafael Doležal
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, Hradec Kralove, Czech Republic
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Natálie Karásková
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Karel Musil
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Martin Novák
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | | | - Dávid Maliňák
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, Hradec Kralove, Czech Republic
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
| | - Karel Kolář
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Chemistry and Chemical Education, Faculty of Education, Charles University, Prague, Czech Republic
| | - Ondřej Soukup
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defense, Hradec Kralove, Brno, Czech Republic
| | - Kamil Kuča
- Department of Chemistry, Faculty of Sciences, University of Hradec Kralove, Hradec Kralove, Czech Republic
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Hradec Kralove, Czech Republic
| | - Jana Žďárová Karasová
- Biomedical Research Center, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defense, Hradec Kralove, Brno, Czech Republic
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Kollar J, Frecer V. How accurate is the description of ligand–protein interactions by a hybrid QM/MM approach? J Mol Model 2017; 24:11. [DOI: 10.1007/s00894-017-3537-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 11/15/2017] [Indexed: 11/28/2022]
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Bustelo M, Pinazo A, Manresa M, Mitjans M, Vinardell M, Pérez L. Monocatenary histidine-based surfactants: Role of the alkyl chain length in antimicrobial activity and their selectivity over red blood cells. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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