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Kroneislová G, Macůrková A, Novotná Z, Ježek R, Lovecká P. Antimicrobial activity and properties of de novo design of short synthetic lipopeptides. Folia Microbiol (Praha) 2024; 69:445-457. [PMID: 38277095 PMCID: PMC11003925 DOI: 10.1007/s12223-024-01132-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 01/09/2024] [Indexed: 01/27/2024]
Abstract
The aim of this article is to introduce the topic of newly designed peptides as well as their biological activity. We designed nine encoded peptides composed of six amino acids. All these peptides were synthesized with C-terminal amidation. To investigate the importance of increased hydrophobicity at the amino end of the peptides, all of them were subsequently synthesized with palmitic or lithocholic acid at the N-terminus. Antimicrobial activity was tested on Gram-positive and Gram-negative bacteria and fungi. Cytotoxicity was measured on HepG2 and HEK 293 T cell cultures. Peptides bearing a hydrophobic group exhibited the best antimicrobial activity. Lipopeptides with palmitic or lithocholic acid (PAL or LCA peptides) at the N-terminus and with C-terminal amidation were highly active against Gram-positive bacteria, especially against strains of Staphylococcus aureus and Candida tropicalis. The LCA peptide SHP 1.3 with the sequence LCA-LVKRAG-NH2, had high efficiency on HepG2 human liver hepatocellular carcinoma cells (97%).
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Affiliation(s)
- Gabriela Kroneislová
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemical Technology Prague, Prague, Czech Republic
| | - Anna Macůrková
- Department of Diary, Fat and Cosmetics, Faculty of Food and Biochemical Technology, University of Chemical Technology Prague, Prague, Czech Republic
| | - Zuzana Novotná
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemical Technology Prague, Prague, Czech Republic
| | - Rudolf Ježek
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemical Technology Prague, Prague, Czech Republic
| | - Petra Lovecká
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemical Technology Prague, Prague, Czech Republic.
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Wnorowska U, Łysik D, Piktel E, Zakrzewska M, Okła S, Lesiak A, Spałek J, Mystkowska J, Savage PB, Janmey P, Fiedoruk K, Bucki R. Ceragenin-mediated disruption of Pseudomonas aeruginosa biofilms. PLoS One 2024; 19:e0298112. [PMID: 38346040 PMCID: PMC10861078 DOI: 10.1371/journal.pone.0298112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/16/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Microbial biofilms, as a hallmark of cystic fibrosis (CF) lung disease and other chronic infections, remain a desirable target for antimicrobial therapy. These biopolymer-based viscoelastic structures protect pathogenic organisms from immune responses and antibiotics. Consequently, treatments directed at disrupting biofilms represent a promising strategy for combating biofilm-associated infections. In CF patients, the viscoelasticity of biofilms is determined mainly by their polymicrobial nature and species-specific traits, such as Pseudomonas aeruginosa filamentous (Pf) bacteriophages. Therefore, we examined the impact of microbicidal ceragenins (CSAs) supported by mucolytic agents-DNase I and poly-aspartic acid (pASP), on the viability and viscoelasticity of mono- and bispecies biofilms formed by Pf-positive and Pf-negative P. aeruginosa strains co-cultured with Staphylococcus aureus or Candida albicans. METHODS The in vitro antimicrobial activity of ceragenins against P. aeruginosa in mono- and dual-species cultures was assessed by determining minimum inhibitory concentration (MIC) and minimum bactericidal/fungicidal concentration (MBC/MFC). Inhibition of P. aeruginosa mono- and dual-species biofilms formation by ceragenins alone and in combination with DNase I or poly-aspartic acid (pASP) was estimated by the crystal violet assay. Additionally, the viability of the biofilms was measured by colony-forming unit (CFU) counting. Finally, the biofilms' viscoelastic properties characterized by shear storage (G') and loss moduli (G"), were analyzed with a rotational rheometer. RESULTS Our results demonstrated that ceragenin CSA-13 inhibits biofilm formation and increases its fluidity regardless of the Pf-profile and species composition; however, the Pf-positive biofilms are characterized by elevated viscosity and elasticity parameters. CONCLUSION Due to its microbicidal and viscoelasticity-modifying properties, CSA-13 displays therapeutic potential in biofilm-associated infections, especially when combined with mucolytic agents.
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Affiliation(s)
- Urszula Wnorowska
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Białystok, Poland
| | - Dawid Łysik
- Institute of Biomedical Engineering, Bialystok University of Technology, Bialystok, Poland
| | - Ewelina Piktel
- Independent Laboratory of Nanomedicine, Medical University of Białystok, Białystok, Poland
| | - Magdalena Zakrzewska
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Białystok, Poland
| | - Sławomir Okła
- Institute of Medical Sciences, Collegium Medicum, Jan Kochanowski University of Kielce, Kielce, Poland
| | - Agata Lesiak
- Institute of Medical Sciences, Collegium Medicum, Jan Kochanowski University of Kielce, Kielce, Poland
| | - Jakub Spałek
- Institute of Medical Sciences, Collegium Medicum, Jan Kochanowski University of Kielce, Kielce, Poland
| | - Joanna Mystkowska
- Institute of Biomedical Engineering, Bialystok University of Technology, Bialystok, Poland
| | - Paul B. Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah, United States of America
| | - Paul Janmey
- Department of Physiology and Institute for Medicine and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Krzysztof Fiedoruk
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Białystok, Poland
| | - Robert Bucki
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Białystok, Poland
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3
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Kim SH, Hind CK, Fernandes GFS, Wu J, Semenya D, Clifford M, Marsh C, Anselmi S, Mason AJ, Bruce KD, Sutton JM, Castagnolo D. Development of Novel Membrane Disrupting Lipoguanidine Compounds Sensitizing Gram-Negative Bacteria to Antibiotics. ACS Med Chem Lett 2024; 15:239-249. [PMID: 38352828 PMCID: PMC10860194 DOI: 10.1021/acsmedchemlett.3c00460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/20/2023] [Accepted: 01/02/2024] [Indexed: 02/16/2024] Open
Abstract
A new class of amphiphilic molecules, the lipoguanidines, designed as hybrids of guanidine and fatty acid compounds, has been synthesized and developed. The new molecules present both a guanidine polar head and a lipophilic tail that allow them to disrupt bacterial membranes and to sensitize Gram-negative bacteria to the action of the narrow-spectrum antibiotics rifampicin and novobiocin. The lipoguanidine 5g sensitizes Klebsiella pneumonia, Acinetobacter baumannii, Pseudomonas aeruginosa, and Escherichia coli to rifampicin, thereby reducing the antibiotic minimum inhibitory concentrations (MIC) up to 256-fold. Similarly, 5g is able to potentiate novobiocin up to 64-fold, thereby showing a broad spectrum of antibiotic potentiating activity. Toxicity and mechanism studies revealed the potential of 5g to work synergistically with rifampicin through the disruption of bacterial membranes without affecting eukaryotic cells.
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Affiliation(s)
- Seong-Heun Kim
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
- Institute
of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King’s College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Charlotte K. Hind
- Antimicrobial
Discovery, Development and Diagnostics, Vaccine Development and Evaluation
Centre, UKHSA Porton Down, Salisbury SP4 0JG, United Kingdom
| | - Guilherme F. S. Fernandes
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Jingyue Wu
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Dorothy Semenya
- Institute
of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King’s College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Melanie Clifford
- Antimicrobial
Discovery, Development and Diagnostics, Vaccine Development and Evaluation
Centre, UKHSA Porton Down, Salisbury SP4 0JG, United Kingdom
| | - Caleb Marsh
- Antimicrobial
Discovery, Development and Diagnostics, Vaccine Development and Evaluation
Centre, UKHSA Porton Down, Salisbury SP4 0JG, United Kingdom
| | - Silvia Anselmi
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - A. James Mason
- Institute
of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King’s College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Kenneth D. Bruce
- Institute
of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King’s College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - J. Mark Sutton
- Institute
of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King’s College London, 150 Stamford Street, London SE1 9NH, United Kingdom
- Antimicrobial
Discovery, Development and Diagnostics, Vaccine Development and Evaluation
Centre, UKHSA Porton Down, Salisbury SP4 0JG, United Kingdom
| | - Daniele Castagnolo
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, United Kingdom
- Institute
of Pharmaceutical Science, School of Cancer & Pharmaceutical Science, King’s College London, 150 Stamford Street, London SE1 9NH, United Kingdom
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Hacioglu M, Yilmaz FN, Oyardi O, Bozkurt Guzel C, Inan N, Savage PB, Dosler S. Antimicrobial Activity of Ceragenins against Vancomycin-Susceptible and -Resistant Enterococcus spp. Pharmaceuticals (Basel) 2023; 16:1643. [PMID: 38139770 PMCID: PMC10747769 DOI: 10.3390/ph16121643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 11/16/2023] [Accepted: 11/19/2023] [Indexed: 12/24/2023] Open
Abstract
Ceragenins (CSAs) are a new class of antimicrobial agents designed to mimic the activities of endogenous antimicrobial peptides. In this study, the antibacterial activities of various ceragenins (CSA-13, CSA-44, CSA-90, CSA-131, CSA-138, CSA-142, and CSA-192), linezolid, and daptomycin were assessed against 50 non-repeated Enterococcus spp. (17 of them vancomycin-resistant Enterococcus-VRE) isolated from various clinical specimens. Among the ceragenins evaluated, the MIC50 and MIC90 values of CSA-44 and CSA-192 were the lowest (2 and 4 μg/mL, respectively), and further studies were continued with these two ceragenins. Potential interactions between CSA-44 or CSA-192 and linezolid were tested and synergistic interactions were seen with the CSA-192-linezolid combination against three Enterococcus spp., one of them VRE. The effects of CSA-44 and CSA-192 on the MIC values of vancomycin were also investigated, and the largest MIC change was seen in the vancomycin-CSA-192 combination. The in vivo effects of CSA-44 and CSA-192 were evaluated in a Caenorhabditis elegans model system. Compared to no treatment, increased survival was observed with C. elegans when treated with ceragenins. In conclusion, CSA-44 and CSA-192 appear to be good candidates (alone or in combination) for the treatment of enterococcal infections, including those from VRE.
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Affiliation(s)
- Mayram Hacioglu
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul 34116, Turkey; (F.N.Y.); (C.B.G.); (S.D.)
| | - Fatima Nur Yilmaz
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul 34116, Turkey; (F.N.Y.); (C.B.G.); (S.D.)
| | - Ozlem Oyardi
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Gazi University, Ankara 06330, Turkey;
| | - Cagla Bozkurt Guzel
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul 34116, Turkey; (F.N.Y.); (C.B.G.); (S.D.)
| | - Nese Inan
- Medical Microbiology Laboratory, Dr. Abdurrahman Yurtaslan Oncology Training and Research Hospital, University of Health Sciences Ankara, Ankara 06200, Turkey;
| | - Paul B. Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA;
| | - Sibel Dosler
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul 34116, Turkey; (F.N.Y.); (C.B.G.); (S.D.)
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Suprewicz Ł, Szczepański A, Lenart M, Piktel E, Fiedoruk K, Barreto-Duran E, Kula-Pacurar A, Savage PB, Milewska A, Bucki R, Pyrć K. Ceragenins exhibit antiviral activity against SARS-CoV-2 by increasing the expression and release of type I interferons upon activation of the host's immune response. Antiviral Res 2023; 217:105676. [PMID: 37481038 DOI: 10.1016/j.antiviral.2023.105676] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 07/13/2023] [Accepted: 07/15/2023] [Indexed: 07/24/2023]
Abstract
The COVID-19 pandemic caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) heavily burdened the entire world socially and economically. Despite a generation of vaccines and therapeutics to confront infection, it remains a threat. Most available antivirals target viral proteins and block their activity or function. While such an approach is considered effective and safe, finding treatments for specific viruses of concern leaves us unprepared for developed resistance and future viral pandemics of unknown origin. Here, we propose ceragenins (CSAs), synthetic amphipathic molecules designed to mimic the properties of cationic antimicrobial peptides (cAMPs), as potential broad-spectrum antivirals. We show that selected CSAs exhibit antiviral activity against SARS-CoV-2 and low-pathogenic human coronaviruses 229E, OC43, and NL63. The mechanism of action of CSAs against coronaviruses is mainly attributed to the stimulation of antiviral cytokines, such as type I interferons or IL-6. Our study provides insight into a novel immunomodulatory strategy that might play an essential role during the current pandemic and future outbreaks.
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Affiliation(s)
- Łukasz Suprewicz
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, Bialystok, Poland
| | - Artur Szczepański
- Virogenetics Laboratory of Virology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Marzena Lenart
- Virogenetics Laboratory of Virology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Ewelina Piktel
- Independent Laboratory of Nanomedicine, Medical University of Bialystok, Bialystok, Poland
| | - Krzysztof Fiedoruk
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, Bialystok, Poland
| | - Emilia Barreto-Duran
- Virogenetics Laboratory of Virology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Anna Kula-Pacurar
- Virogenetics Laboratory of Virology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Paul B Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA
| | - Aleksandra Milewska
- Virogenetics Laboratory of Virology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - Robert Bucki
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, Bialystok, Poland.
| | - Krzysztof Pyrć
- Virogenetics Laboratory of Virology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland.
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Yilmaz FN, Öksüz L, Demir ES, Döşler S, Savage PB, Güzel ÇB. Efficacy of Ceragenins Alone and in Combinations with Antibiotics Against Multidrug-Resistant Gram Negative Pathogens from Bloodstream Infections. Curr Microbiol 2023; 80:327. [PMID: 37620557 DOI: 10.1007/s00284-023-03443-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023]
Abstract
Ceragenins (CSAs) that mimic the activities of antimicrobial peptides may be new options for the treatment of infections caused by multidrug-resistant pathogens. This study investigated the antibacterial activities of eight different ceragenins against MDR pathogens and the synergistic effects of some ceragenins in combinations with antibiotics (meropenem-MEM, ceftazidime + avibactam-CZA, tigecycline-TIG). A disc diffusion method was used for antibiotic susceptibility tests, a broth microdilution, and checkerboard methods were used to detect minimum inhibitory concentrations (MICs) and the effects of combinations, respectively. While MIC90 values CSA-13, CSA-44, CSA-131 against Klebsiella pneumoniae isolates had similar effect with MEM (8 µg/ml); CSA-13, CSA-44, CSA-131, CSA-138, and CSA-144 had better activity than MEM against Acinetobacter baumannii and Pseudomonas aeruginosa isolates. In particular, CSA-44 and CSA-131 were effective against A. baumannii and P. aeruginosa isolates which resistant to both COL and MEM. CSA-44+MEM and CSA-131+CZA combinations showed synergistic activity against most (70%) of MDR- E. coli isolates. Although TIG is known to have weak activity in nonfermentative bacteria, CSA-44+TIG combination showed synergistic activity against two (17%) of the A. baumanni isolates. In addition, CSA-44+TIG and CSA-131+TIG combinations showed additive effects against all P. aeruginosa isolates. Antagonism was not detected in any of the combinations. CSA-44 and CSA-131 alone/or in combinations with MEM or CZA can be considered as new alternative treatments in serious infections caused by MDR pathogens.
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Affiliation(s)
- Fatima Nur Yilmaz
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul, Türkiye
| | - Lütfiye Öksüz
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, 34093-Capa-Fatih, Istanbul, Türkiye.
| | - Elif Sena Demir
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul, Türkiye
| | - Sibel Döşler
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul, Türkiye
| | - Paul B Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA
| | - Çağla Bozkurt Güzel
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Istanbul, Türkiye
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Khamis T, Diab AAAA, Zahra MH, El-Dahmy SE, Abd Al-Hameed BA, Abdelkhalek A, Said MA, Abdellatif H, Fericean LM, Banatean-Dunea I, Arisha AH, Attia MS. The Antiproliferative Activity of Adiantum pedatum Extract and/or Piceatannol in Phenylhydrazine-Induced Colon Cancer in Male Albino Rats: The miR-145 Expression of the PI-3K/ Akt/ p53 and Oct4/ Sox2/ Nanog Pathways. Molecules 2023; 28:5543. [PMID: 37513415 PMCID: PMC10383735 DOI: 10.3390/molecules28145543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Colon cancer is one of the most common types of cancer worldwide, and its incidence is increasing. Despite advances in medical science, the treatment of colon cancer still poses a significant challenge. This study aimed to investigate the potential protective effects of Adiantum pedatum (AP) extract and/or piceatannol on colon cancer induced via phenylhydrazine (PHZ) in terms of the antioxidant and apoptotic pathways and histopathologic changes in the colons of male albino rats. The rats were randomly divided into eight groups: control, AP extract, piceatannol (P), PHZ, PHZ and AP treatments, PHZ and P treatments, PHZ and both AP and P, and PHZ and prophylaxis with both AP and P. The results demonstrated that PHZ induced oxidative damage, apoptosis, and histopathological changes compared to the control group. However, the administration of AP or P or AP + P as therapy or prophylaxis significantly ameliorated these changes and upregulated the colonic mir-145 and mRNA expression of P53 and PDCD-4 while downregulating the colonic mRNA expression of PI3K, AKT, c-Myc, CK-20, SOX-2, OCT-4, and NanoG compared to the PHZ group. These findings suggest that the candidate drugs may exert their anti-cancer effects through multiple mechanisms, including antioxidant and apoptotic activities.
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Affiliation(s)
- Tarek Khamis
- Department of Pharmacology and Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | | | - Mansour H Zahra
- Zoology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Samih Ebrahim El-Dahmy
- Department of Pharmacology, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | | | - Adel Abdelkhalek
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr City 11829, Egypt
| | - Mahmoud A Said
- Zagazig University Hospital, Zagazig University, Zagazig 44511, Egypt
| | - Hussein Abdellatif
- Department of Human and Clinical Anatomy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat 123, Oman
- Anatomy and Embryology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Liana Mihaela Fericean
- Department of Biology, Faculty of Agriculture, University of Life Sciences, King Mihai I" from Timisoara [ULST], Aradului St. 119, 300645 Timisoara, Romania
| | - Ioan Banatean-Dunea
- Department of Biology, Faculty of Agriculture, University of Life Sciences, King Mihai I" from Timisoara [ULST], Aradului St. 119, 300645 Timisoara, Romania
| | - Ahmed Hamed Arisha
- Department of Animal Physiology and Biochemistry, Faculty of Veterinary Medicine, Badr University in Cairo, Badr City 11829, Egypt
- Department of Physiology, Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt
| | - Mai S Attia
- Zoology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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Basagni F, Marotta G, Rosini M, Minarini A. Polyamine-Drug Conjugates: Do They Boost Drug Activity? Molecules 2023; 28:molecules28114518. [PMID: 37298993 DOI: 10.3390/molecules28114518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Over the past two decades, the strategy of conjugating polyamine tails with bioactive molecules such as anticancer and antimicrobial agents, as well as antioxidant and neuroprotective scaffolds, has been widely exploited to enhance their pharmacological profile. Polyamine transport is elevated in many pathological conditions, suggesting that the polyamine portion could improve cellular and subcellular uptake of the conjugate via the polyamine transporter system. In this review, we have presented a glimpse on the polyamine conjugate scenario, classified by therapeutic area, of the last decade with the aim of highlighting achievements and fostering future developments.
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Affiliation(s)
- Filippo Basagni
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Giambattista Marotta
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Michela Rosini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Anna Minarini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
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9
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Buzoglu Kurnaz L, Luo Y, Yang X, Alabresm A, Leighton R, Kumar R, Hwang J, Decho AW, Nagarkatti P, Nagarkatti M, Tang C. Facial amphiphilicity index correlating chemical structures with antimicrobial efficacy. Bioact Mater 2023; 20:519-527. [PMID: 35846842 PMCID: PMC9253162 DOI: 10.1016/j.bioactmat.2022.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 11/20/2022] Open
Abstract
Facial amphiphilicity is an extraordinary chemical structure feature of a variety of antimicrobial peptides and polymers. Vast efforts have been dedicated to small molecular, macromolecular and dendrimer-like systems to mimic this highly preferred structure or conformation, including local facial amphiphilicity and global amphiphilicity. This work conceptualizes Facial Amphiphilicity Index (FAI) as a numerical value to quantitatively characterize the measure of chemical compositions and structural features in dictating antimicrobial efficacy. FAI is a ratio of numbers of charges to rings, representing both compositions of hydrophilicity and hydrophobicity. Cationic derivatives of multicyclic compounds were evaluated as model systems for testing antimicrobial selectivity against Gram-negative and Gram-positive bacteria. Both monocyclic and bicyclic compounds are non-antimicrobial regardless of FAIs. Antimicrobial efficacy was observed with systems having larger cross-sectional areas including tricyclic abietic acid and tetracyclic bile acid. While low and high FAIs respectively lead to higher and lower antimicrobial efficacy, in consideration of cytotoxicity, the sweet spot is typically suited with intermediate FAIs for each specific system. This can be well explained by the synergistic hydrophobic-hydrophobic and electrostatic interactions with bacterial cell membranes and the difference between bacterial and mammalian cell membranes. The adoption of FAI would pave a new avenue toward the design of next-generation antimicrobial macromolecules and peptides. Established a numerical index to quantify the effect of facial amphiphilicity on antimicrobial efficacy. Evaluated the facial amphiphilicity index of multicyclic compounds possessing various rings and cationic charges. Provided this index a new tool toward more quantitative designs of AMP mimics.
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Affiliation(s)
- Leman Buzoglu Kurnaz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, United States
| | - Yuanyuan Luo
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, United States
| | - Xiaoming Yang
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, SC, 29209, United States
| | - Amjed Alabresm
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, 29208, United States
| | - Ryan Leighton
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, 29208, United States
| | - Rani Kumar
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, United States
| | - JiHyeon Hwang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, United States
| | - Alan W. Decho
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, 29208, United States
| | - Prakash Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, SC, 29209, United States
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina, School of Medicine, Columbia, SC, 29209, United States
| | - Chuanbing Tang
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, 29208, United States
- Corresponding author.
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10
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Fang X, Liu Y, Zhang M, Zhou S, Cui P, Hu H, Jiang P, Wang C, Qiu L, Wang J. Glucose oxidase loaded thermosensitive hydrogel as an antibacterial wound dressing. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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11
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Wesseling CJ, Martin NI. Synergy by Perturbing the Gram-Negative Outer Membrane: Opening the Door for Gram-Positive Specific Antibiotics. ACS Infect Dis 2022; 8:1731-1757. [PMID: 35946799 PMCID: PMC9469101 DOI: 10.1021/acsinfecdis.2c00193] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
New approaches to target antibacterial agents toward Gram-negative bacteria are key, given the rise of antibiotic resistance. Since the discovery of polymyxin B nonapeptide as a potent Gram-negative outer membrane (OM)-permeabilizing synergist in the early 1980s, a vast amount of literature on such synergists has been published. This Review addresses a range of peptide-based and small organic compounds that disrupt the OM to elicit a synergistic effect with antibiotics that are otherwise inactive toward Gram-negative bacteria, with synergy defined as a fractional inhibitory concentration index (FICI) of <0.5. Another requirement for the inclusion of the synergists here covered is their potentiation of a specific set of clinically used antibiotics: erythromycin, rifampicin, novobiocin, or vancomycin. In addition, we have focused on those synergists with reported activity against Gram-negative members of the ESKAPE family of pathogens namely, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, and/or Acinetobacter baumannii. In cases where the FICI values were not directly reported in the primary literature but could be calculated from the published data, we have done so, allowing for more direct comparison of potency with other synergists. We also address the hemolytic activity of the various OM-disrupting synergists reported in the literature, an effect that is often downplayed but is of key importance in assessing the selectivity of such compounds for Gram-negative bacteria.
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12
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Bansal R, Suryan A. A Comprehensive Review on Steroidal Bioconjugates as Promising Leads in Drug Discovery. ACS BIO & MED CHEM AU 2022; 2:340-369. [PMID: 37102169 PMCID: PMC10125316 DOI: 10.1021/acsbiomedchemau.1c00071] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ever increasing unmet medical requirements of the human race and the continuous fight for survival against variety of diseases give birth to novel molecules through research. As diseases evolve, different strategies are employed to counter the new challenges and to discover safer, more effective, and target-specific therapeutic agents. Among several novel approaches, bioconjugation, in which two chemical moieties are joined together to achieve noticeable results, has emerged as a simple and convenient technique for a medicinal chemist to obtain potent molecules. The steroid system has been extensively used as a privileged scaffold gifted with significantly diversified medicinal properties in the drug discovery and development process. Steroidal molecules are preferred for their rigidness and good ability to penetrate biological membranes. Slight alteration in the basic ring structure results in the formation of steroidal derivatives with a wide range of therapeutic activities. Steroids are not only active as such, conjugating them with various biologically active moieties results in increased lipophilicity, stability, and target specificity with decreased adverse effects. Thus, the steroid nucleus prominently behaves as a biological carrier for small molecules. The steroid bioconjugates offer several advantages such as synergistic activity with fewer side effects due to reduced dose and selective therapy. The steroidal bioconjugates have been widely explored for their usefulness against various disorders and have shown significant utility as anticancer, anti-inflammatory, anticoagulant, antimicrobial, insecticidal/pesticidal, antioxidant, and antiviral agents along with several other miscellaneous activities. This work provides a comprehensive review on the therapeutic progression of steroidal bioconjugates as medicinally active molecules. The review covers potential biological applications of steroidal bioconjugates and would benefit the wider scientific community in their drug discovery endeavors.
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Affiliation(s)
- Ranju Bansal
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Amruta Suryan
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
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13
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Yu B, Choudhury MR, Yang X, Benoit SL, Womack E, Van Mouwerik Lyles K, Acharya A, Kumar A, Yang C, Pavlova A, Zhu M, Yuan Z, Gumbart JC, Boykin DW, Maier RJ, Eichenbaum Z, Wang B. Restoring and Enhancing the Potency of Existing Antibiotics against Drug-Resistant Gram-Negative Bacteria through the Development of Potent Small-Molecule Adjuvants. ACS Infect Dis 2022; 8:1491-1508. [PMID: 35801980 PMCID: PMC11227883 DOI: 10.1021/acsinfecdis.2c00121] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The rapid and persistent emergence of drug-resistant bacteria poses a looming public health crisis. The possible task of developing new sets of antibiotics to replenish the existing ones is daunting to say the least. Searching for adjuvants that restore or even enhance the potency of existing antibiotics against drug-resistant strains of bacteria represents a practical and cost-effective approach. Herein, we describe the discovery of potent adjuvants that extend the antimicrobial spectrum of existing antibiotics and restore their effectiveness toward drug-resistant strains including mcr-1-expressing strains. From a library of cationic compounds, MD-100, which has a diamidine core structure, was identified as a potent antibiotic adjuvant against Gram-negative bacteria. Further optimization efforts including the synthesis of ∼20 compounds through medicinal chemistry work led to the discovery of a much more potent compound MD-124. MD-124 was shown to sensitize various Gram-negative bacterial species and strains, including multidrug resistant pathogens, toward existing antibiotics with diverse mechanisms of action. We further demonstrated the efficacy of MD-124 in an ex vivo skin infection model and in an in vivo murine systemic infection model using both wild-type and drug-resistant Escherichia coli strains. MD-124 functions through selective permeabilization of the outer membrane of Gram-negative bacteria. Importantly, bacteria exhibited low-resistance frequency toward MD-124. In-depth computational investigations of MD-124 binding to the bacterial outer membrane using equilibrium and steered molecular dynamics simulations revealed key structural features for favorable interactions. The very potent nature of such adjuvants distinguishes them as very useful leads for future drug development in combating bacterial drug resistance.
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Affiliation(s)
- Bingchen Yu
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | - Manjusha Roy Choudhury
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | - Xiaoxiao Yang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | | | - Edroyal Womack
- Department of Biology, Georgia State University, Atlanta, GA 30303 USA
| | | | - Atanu Acharya
- School of Physics and School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332 United States
| | - Arvind Kumar
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | - Ce Yang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | - Anna Pavlova
- School of Physics and School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332 United States
| | - Mengyuan Zhu
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | - Zhengnan Yuan
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | - James C. Gumbart
- School of Physics and School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332 United States
| | - David W. Boykin
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
| | - Robert J. Maier
- Department of Microbiology, University of Georgia, Athens, GA 30602 USA
| | - Zehava Eichenbaum
- Department of Biology, Georgia State University, Atlanta, GA 30303 USA
| | - Binghe Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, GA 30303 USA
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14
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Labra-Vázquez P, Ochoa ME, Alfonso-Herrera LA, Vera MA, Farfán N, Santillan R. A Steroidal Molecular Rotor with Fast Solid‐State Dynamics Obtained by Crystal Engineering: Role of the Polarity of the Stator. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pablo Labra-Vázquez
- UNAM Facultad de Quimica: Universidad Nacional Autonoma de Mexico Facultad de Quimica Química orgánica 04510 Ciudad de México, México MEXICO
| | - María E. Ochoa
- Centro de Investigacion y de Estudios Avanzados Unidad Zacatenco: Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional Química Apdo. Postal 14-740, 07000, Ciudad de México, México MEXICO
| | - Luis A. Alfonso-Herrera
- Universidad Autónoma de Nuevo León: Universidad Autonoma de Nuevo Leon Departamento de Ecomateriales y Energía Av. Universidad S/N Ciudad Universitaria, San Nicolás de los Garza, Nuevo León, MEXICO
| | - Marco A. Vera
- Universidad Autonoma Metropolitana Iztapalapa Lab. de RMN MEXICO
| | - Norberto Farfán
- UNAM Facultad de Quimica: Universidad Nacional Autonoma de Mexico Facultad de Quimica Química orgánica 04510 Ciudad de México, México MEXICO
| | - Rosa Santillan
- Centro de Investigacion y de Estudios Avanzados Unidad Zacatenco: Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional Química Apdo. Postal 14-740, 07000, Ciudad de México, México 07000 Ciudad de México MEXICO
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15
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Pillai VV, Kumari P, Benedetto A, Gobbo D, Ballone P. Absorption of Phosphonium Cations and Dications into a Hydrated POPC Phospholipid Bilayer: A Computational Study. J Phys Chem B 2022; 126:4272-4288. [PMID: 35666883 PMCID: PMC9207913 DOI: 10.1021/acs.jpcb.2c02212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/17/2022] [Indexed: 11/30/2022]
Abstract
Molecular dynamics (MD) based on an empirical force field is applied to investigate the effect of phosphonium cations ([P6,6,6,6]+) and geminal dications ([DxC10]2+) inserted at T = 300 K into the hydration layer separating planar POPC phospholipid bilayers. Up to high concentration, nearly every added cation and dication becomes absorbed into the lipid phase. Absorption takes place during several microseconds and is virtually irreversible. The neutralizing counterions ([Cl]-, in the present simulation) remain dissolved in water, giving origin to the charge separation and the strong electrostatic double layer at the water/lipid interface. Incorporation of cations and dications changes the properties of the lipid bilayer such as diffusion, viscosity, and the electrostatic pattern. At high ionic concentration, the bilayer acquires a long-wavelength standing undulation, corresponding to a change of phase from fluid planar to ripple. All these changes are potentially able to affect processes relevant in the context of cell biology. The major difference between cations and dications concerns the kinetics of absorption, which takes place nearly two times faster in the [P6,6,6,6]+ case, and for [DxC10]2+ dications displays a marked separation into two-stages, corresponding to the easy absorption of the first phosphonium head of the dication and the somewhat more activated absorption of the second phosphonium head of each dication.
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Affiliation(s)
- V. V.
S. Pillai
- School
of Physics, University College Dublin, Dublin 4, Ireland
- Conway
Institute for Biomolecular and Biomedical Research, University College Dublin, Dublin
4, Ireland
| | - P. Kumari
- School
of Physics, University College Dublin, Dublin 4, Ireland
- Conway
Institute for Biomolecular and Biomedical Research, University College Dublin, Dublin
4, Ireland
| | - A. Benedetto
- School
of Physics, University College Dublin, Dublin 4, Ireland
- Conway
Institute for Biomolecular and Biomedical Research, University College Dublin, Dublin
4, Ireland
- Department
of Sciences, University of Roma Tre, I-00154 Rome, Italy
| | - D. Gobbo
- School
of Pharmaceutical Sciences and ISPSO, University
of Geneva, Rue Michel-Servet
1, CH-1211, Geneva
4, Switzerland
- Computational
and Chemical Biology, Fondazione Istituto
Italiano di Tecnologia, I-16163 Genova, Italy
| | - P. Ballone
- School
of Physics, University College Dublin, Dublin 4, Ireland
- Conway
Institute for Biomolecular and Biomedical Research, University College Dublin, Dublin
4, Ireland
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16
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Kazakova O, Giniyatullina G, Babkov D, Wimmer Z. From Marine Metabolites to the Drugs of the Future: Squalamine, Trodusquemine, Their Steroid and Triterpene Analogues. Int J Mol Sci 2022; 23:ijms23031075. [PMID: 35162998 PMCID: PMC8834734 DOI: 10.3390/ijms23031075] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 12/13/2022] Open
Abstract
This review comprehensively describes the recent advances in the synthesis and pharmacological evaluation of steroid polyamines squalamine, trodusquemine, ceragenins, claramine, and their diverse analogs and derivatives, with a special focus on their complete synthesis from cholic acids, as well as an antibacterial and antiviral, neuroprotective, antiangiogenic, antitumor, antiobesity and weight-loss activity, antiatherogenic, regenerative, and anxiolytic properties. Trodusquemine is the most-studied small-molecule allosteric PTP1B inhibitor. The discovery of squalamine as the first representative of a previously unknown class of natural antibiotics of animal origin stimulated extensive research of terpenoids (especially triterpenoids) comprising polyamine fragments. During the last decade, this new class of biologically active semisynthetic natural product derivatives demonstrated the possibility to form supramolecular networks, which opens up many possibilities for the use of such structures for drug delivery systems in serum or other body fluids.
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Affiliation(s)
- Oxana Kazakova
- Ufa Institute of Chemistry, UFA Federal Research Centre of the Russian Academy of Sciences, Pr. Oktyabrya, 450054 Ufa, Russia;
- Correspondence:
| | - Gulnara Giniyatullina
- Ufa Institute of Chemistry, UFA Federal Research Centre of the Russian Academy of Sciences, Pr. Oktyabrya, 450054 Ufa, Russia;
| | - Denis Babkov
- Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya St. 39, 400087 Volgograd, Russia;
| | - Zdenek Wimmer
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology in Prague, Technicka’ 5, Prague 6, 16628 Prague, Czech Republic;
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17
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Skłodowski K, Chmielewska SJ, Depciuch J, Deptuła P, Piktel E, Daniluk T, Zakrzewska M, Czarnowski M, Cieśluk M, Durnaś B, Parlińska-Wojtan M, Savage PB, Bucki R. Ceragenin-Coated Non-Spherical Gold Nanoparticles as Novel Candidacidal Agents. Pharmaceutics 2021; 13:pharmaceutics13111940. [PMID: 34834355 PMCID: PMC8619546 DOI: 10.3390/pharmaceutics13111940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Infections caused by Candida spp. have become one of the major causes of morbidity and mortality in immunocompromised patients. Therefore, new effective fungicides are urgently needed, especially due to an escalating resistance crisis. METHODS A set of nanosystems with rod- (AuR), peanut- (AuP), and star-shaped (AuS) metal cores were synthesized. These gold nanoparticles were conjugated with ceragenins CSA-13, CSA-44, and CSA-131, and their activity was evaluated against Candida strains (n = 21) through the assessment of MICs (minimum inhibitory concentrations)/MFCs (minimum fungicidal concentrations). Moreover, in order to determine the potential for resistance development, serial passages of Candida cells with tested nanosystems were performed. The principal mechanism of action of Au NPs was evaluated via ROS (reactive oxygen species) generation assessment, plasma membrane permeabilization, and release of the protein content. Finally, to evaluate the potential toxicity of Au NPs, the measurement of hemoglobin release from red blood cells (RBCs) was carried out. RESULTS All of the tested nanosystems exerted a potent candidacidal activity, regardless of the species or susceptibility to other antifungal agents. Significantly, no resistance development after 25 passages of Candida cells with AuR@CSA-13, AuR@CSA-44, and AuR@CSA-131 nanosystems was observed. Moreover, the fungicidal mechanism of action of the investigated nanosystems involved the generation of ROS, damage of the fungal cell membrane, and leakage of intracellular contents. Notably, no significant RBCs hemolysis at candidacidal doses of tested nanosystems was detected. CONCLUSIONS The results provide rationale for the development of gold nanoparticles of rod-, peanut-, and star-shaped conjugated with CSA-13, CSA-44, and CSA-131 as effective candidacidal agents.
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Affiliation(s)
- Karol Skłodowski
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Sylwia Joanna Chmielewska
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Joanna Depciuch
- Institute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow, Poland
| | - Piotr Deptuła
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Ewelina Piktel
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Tamara Daniluk
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Magdalena Zakrzewska
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Michał Czarnowski
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Mateusz Cieśluk
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
| | - Bonita Durnaś
- The Faculty of Medicine and Health Sciences, Collegium Modicum of the Jan Kochanowski University in Kielce, 25-734 Kielce, Poland
| | | | - Paul B Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA
| | - Robert Bucki
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Bialystok, 15-222 Bialystok, Poland
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18
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Felisbino JKRP, Vieira BS, de Oliveira A, da Silva NA, Martins CHG, Santiago MB, Munoz RAA, Cunha LCS, Sousa RMF. Identification of Substances Produced by Cercospora brachiata in Absence of Light and Evaluation of Antibacterial Activity. J Fungi (Basel) 2021; 7:jof7090680. [PMID: 34575718 PMCID: PMC8469931 DOI: 10.3390/jof7090680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 11/16/2022] Open
Abstract
Cercospora brachiata is a phytopathogenic fungus. To know more about the metabolites produced by this fungus, the objective of this work was to identify, isolate and characterize substances present in extracts of the growth broth and mycelium, using gas chromatography with mass spectrometry (GC-MS) and nuclear magnetic resonance (NMR). It was also objective to evaluate the antibacterial activity of the extracts. Among the compounds identified, fatty acids, esters, and steroids can be highlighted. The main compounds identified are 9-hexadecenoic, hexadecenoic, oleic, octadecanoic, lauric, myristic, palmitic, doceno-13-enoic, stearic, linoleic, and nonadecanoic acids present in almost all extracts. For the antibacterial activity, the broth microdilution method was used. The ethyl acetate extract of the mycelium presented inhibitory concentrations (MICs) against the bacterium Actinomyces naeslundii (100 μg mL-1) and Streptococcus sanguinis (200 μg mL-1). Finally, two steroids were isolated and identified in the hexane extract of mycelium: ergosta-6,22-dien-3β,5α,8α-triol and brassicasterol.
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Affiliation(s)
- John K. R. P. Felisbino
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil; (J.K.R.P.F.); (A.d.O.); (R.A.A.M.)
| | - Bruno S. Vieira
- Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Monte Carmelo 38500-000, Brazil; (B.S.V.); (N.A.d.S.)
| | - Alberto de Oliveira
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil; (J.K.R.P.F.); (A.d.O.); (R.A.A.M.)
| | - Neiliane A. da Silva
- Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Monte Carmelo 38500-000, Brazil; (B.S.V.); (N.A.d.S.)
| | - Carlos H. G. Martins
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil; (C.H.G.M.); (M.B.S.)
| | - Mariana B. Santiago
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil; (C.H.G.M.); (M.B.S.)
| | - Rodrigo A. A. Munoz
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil; (J.K.R.P.F.); (A.d.O.); (R.A.A.M.)
| | - Luís C. S. Cunha
- Departamento de Química, Instituto Federal do Triangulo Mineiro, Uberaba 38064-100, Brazil;
| | - Raquel M. F. Sousa
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia 38400-902, Brazil; (J.K.R.P.F.); (A.d.O.); (R.A.A.M.)
- Correspondence: ; Tel.: +55-3432394143
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19
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Mach M, Kowalska M, Olechowska K, Płachta Ł, Wydro P. The studies on the membrane activity of triester of phosphatidylcholine in artificial membrane systems. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183711. [PMID: 34343534 DOI: 10.1016/j.bbamem.2021.183711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 07/14/2021] [Accepted: 07/21/2021] [Indexed: 11/28/2022]
Abstract
Due to the increasing number of infections together with the appearance of bacteria exhibiting multi-drug resistance, new antibiotics are being sought. In this context the interest of the cationic lipoids increases because of their amphiphilic structure and positive charge that can stimulates the antibacterial action of these compounds. Thus, in this work we have performed the studies on the effect of one selected triesters of phosphatidylcholine, namely 1,2-dipalmitoyl-sn-glycero-3-ethylphosphocholine (EDPPC), on the model lipid membranes. The investigations included the analysis of the impact of EDPPC on multicomponent monolayers and bilayers consisting of the lipids naturally occurring in bacterial membranes (phosphatidylethanolamines (PE), phosphatidylglycerols (PG) and cardiolipin (CL)), mixed in proportions reflecting the lipid composition of these biomembranes. In the study, the Langmuir monolayers (registered on water and PBS buffer) and liposomes as model bacterial biomembranes were applied. The obtained results demonstrate that the presence of cationic lipoid in PE/PG and PE/PG/CL systems significantly modifies their properties and molecular organization. The incorporation of EDPPC into model bacterial membranes primarily impact on the intermolecular interactions. It was shown that the strength of the interaction between the cationic lipid and the components of the model membranes depends both on the composition of the membrane as well as on the type of subphase. Furthermore, the investigated cationic lipoid leads to the decrease of the ordering of acyl chains and thus to the increase of fluidity of membranes. The obtained results allow one to propose that EDPPC may behave as antibiotic active at the level of membrane.
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Affiliation(s)
- Marzena Mach
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Magdalena Kowalska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Karolina Olechowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Łukasz Płachta
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Paweł Wydro
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
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20
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Unlocking the bacterial membrane as a therapeutic target for next-generation antimicrobial amphiphiles. Mol Aspects Med 2021; 81:100999. [PMID: 34325929 DOI: 10.1016/j.mam.2021.100999] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 06/21/2021] [Accepted: 07/16/2021] [Indexed: 11/21/2022]
Abstract
Gram-positive bacteria like Enterococcus faecium and Staphylococcus aureus, and Gram-negative bacteria like Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter Spp. are responsible for most of fatal bacterial infections. Bacteria present a handful of targets like ribosome, RNA polymerase, cell wall biosynthesis, and dihydrofolate reductase. Antibiotics targeting the protein synthesis like aminoglycosides and tetracyclines, inhibitors of RNA/DNA synthesis like fluoroquinolones, inhibitors of cell wall biosynthesis like glycopeptides and β-lactams, and membrane-targeting polymyxins and lipopeptides have shown very good success in combating the bacterial infections. Ability of the bacteria to develop drug resistance is a serious public health challenge as bacteria can develop antimicrobial resistance against newly introduced antibiotics that enhances the challenge for antibiotic drug discovery. Therefore, bacterial membranes present a suitable therapeutic target for development of antimicrobials as bacteria can find it difficult to develop resistance against membrane-targeting antimicrobials. In this review, we present the recent advances in engineering of membrane-targeting antimicrobial amphiphiles that can be effective alternatives to existing antibiotics in combating bacterial infections.
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21
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Négrel S, Brunel JM. Synthesis and Biological Activities of Naturally Functionalized Polyamines: An Overview. Curr Med Chem 2021; 28:3406-3448. [PMID: 33138746 DOI: 10.2174/0929867327666201102114544] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 09/01/2020] [Accepted: 09/16/2020] [Indexed: 11/22/2022]
Abstract
Recently, extensive researches have emphasized the fact that polyamine conjugates are becoming important in all biological and medicinal fields. In this review, we will focus our attention on natural polyamines and highlight recent progress in both fundamental mechanism studies and interests in the development and application for the therapeutic use of polyamine derivatives.
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Affiliation(s)
- Sophie Négrel
- Aix Marseille University, Faculty of Pharmacy, UMR-MD1, 27 bd Jean Moulin, 13385 Marseille, France
| | - Jean Michel Brunel
- Aix Marseille University, Faculty of Pharmacy, UMR-MD1, 27 bd Jean Moulin, 13385 Marseille, France
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Synthesis and Characterization of Bone Binding Antibiotic-1 (BBA-1), a Novel Antimicrobial for Orthopedic Applications. Molecules 2021; 26:molecules26061541. [PMID: 33799713 PMCID: PMC7999004 DOI: 10.3390/molecules26061541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 11/16/2022] Open
Abstract
Osteomyelitis and orthopedic infections are major clinical problems, limited by a lack of antibiotics specialized for such applications. In this paper, we describe the design and synthesis of a novel bone-binding antibiotic (BBA-1) and its subsequent structural and functional characterization. The synthesis of BBA-1 was the result of a two-step chemical conjugation of cationic selective antimicrobial-90 (CSA-90) and the bisphosphonate alendronate (ALN) via a heterobifunctional linker. This was analytically confirmed by HPLC, FT-IR, MS and NMR spectroscopy. BBA-1 showed rapid binding and high affinity to bone mineral in an in vitro hydroxyapatite binding assay. Kirby—Baur assays confirmed that BBA-1 shows a potent antibacterial activity against Staphylococcus aureus and methicillin-resistant S. aureus comparable to CSA-90. Differentiation of cultured osteoblasts in media supplemented with BBA-1 led to increased alkaline phosphatase expression, which is consistent with the pro-osteogenic activity of CSA-90. Bisphosphonates, such as ALN, are inhibitors of protein prenylation, however, the amine conjugation of ALN to CSA-90 disrupted this activity in an in vitro protein prenylation assay. Overall, these findings support the antimicrobial, bone-binding, and pro-osteogenic activities of BBA-1. The compound and related agents have the potential to ensure lasting activity against osteomyelitis after systemic delivery.
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Lin C, Wang Y, Le M, Chen KF, Jia YG. Recent Progress in Bile Acid-Based Antimicrobials. Bioconjug Chem 2021; 32:395-410. [PMID: 33683873 DOI: 10.1021/acs.bioconjchem.0c00642] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
With the emergence of drug-resistant bacteria and the formation of biofilms by bacteria and fungi, microbial infections gradually threaten global health. Natural antimicrobial peptides (AMPs) have low susceptibility for developing resistance due to the membrane targeted mechanism, but instability and high manufacturing cost limit their applications in clinic. Bile acids, a group of steroids in the human body, with high stability, biocompatibility, and inherent facial amphiphilic structure similar to the characteristics of AMPs, have been applied to the biological field, such as drug delivery systems, self-healing hydrogels, antimicrobials, and so on. In this review, we mainly focus on the different classes of bile acid-based antimicrobials in recent years. Various designs and methods for the preparation of unimolecular antimicrobials with bile acid skeletons are first introduced, including coupling of primary amine, quaternary ammonium, and amino acid units with bile acid skeletons. Some representative oligomeric antimicrobials, including dimers of bile acids, are summarized. Finally, macromolecular antimicrobials bearing some positive charges at the main chain or side chain and interaction mechanisms of these bile acid-based antimicrobials are discussed.
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Affiliation(s)
- Caihong Lin
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China
| | - Yushi Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China
| | - Mengqi Le
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China
| | - Kai-Feng Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China
| | - Yong-Guang Jia
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Biomedical Engineering of Guangdong Province, South China University of Technology, Guangzhou 510006, China.,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou 510006, China.,Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
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di Gregorio MC, Cautela J, Galantini L. Physiology and Physical Chemistry of Bile Acids. Int J Mol Sci 2021; 22:1780. [PMID: 33579036 PMCID: PMC7916809 DOI: 10.3390/ijms22041780] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 02/04/2021] [Indexed: 02/06/2023] Open
Abstract
Bile acids (BAs) are facial amphiphiles synthesized in the body of all vertebrates. They undergo the enterohepatic circulation: they are produced in the liver, stored in the gallbladder, released in the intestine, taken into the bloodstream and lastly re-absorbed in the liver. During this pathway, BAs are modified in their molecular structure by the action of enzymes and bacteria. Such transformations allow them to acquire the chemical-physical properties needed for fulling several activities including metabolic regulation, antimicrobial functions and solubilization of lipids in digestion. The versatility of BAs in the physiological functions has inspired their use in many bio-applications, making them important tools for active molecule delivery, metabolic disease treatments and emulsification processes in food and drug industries. Moreover, moving over the borders of the biological field, BAs have been largely investigated as building blocks for the construction of supramolecular aggregates having peculiar structural, mechanical, chemical and optical properties. The review starts with a biological analysis of the BAs functions before progressively switching to a general overview of BAs in pharmacology and medicine applications. Lastly the focus moves to the BAs use in material science.
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Affiliation(s)
- Maria Chiara di Gregorio
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Jacopo Cautela
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy;
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy;
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25
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Kazakova OB, Giniyatullina GV, Mustafin AG, Babkov DA, Sokolova EV, Spasov AA. Evaluation of Cytotoxicity and α-Glucosidase Inhibitory Activity of Amide and Polyamino-Derivatives of Lupane Triterpenoids. Molecules 2020; 25:E4833. [PMID: 33092246 PMCID: PMC7587962 DOI: 10.3390/molecules25204833] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 12/17/2022] Open
Abstract
A series of two new and twenty earlier synthesized branched extra-amino-triterpenoids obtained by the direct coupling of betulinic/betulonic acids with polymethylenpolyamines, or by the cyanoethylation of lupane type alcohols, oximes, amines, and amides with the following reduction were evaluated for cytotoxicity toward the NCI-60 cancer cell line panel, α-glucosidase inhibitory, and antimicrobial activities. Lupane carboxamides, conjugates with diaminopropane, triethylenetetramine, and branched C3-cyanoethylated polyamine methyl betulonate showed high cytotoxic activity against most of the tested cancer cell lines with GI50 that ranged from 1.09 to 54.40 µM. Betulonic acid C28-conjugate with triethylenetetramine and C3,C28-bis-aminopropoxy-betulin were found to be potent micromolar inhibitors of yeast α-glucosidase and to simultaneously inhibit the endosomal reticulum α-glucosidase, rendering them as potentially capable to suppress tumor invasiveness and neovascularization, in addition to the direct cytotoxicity. Plausible mechanisms of cytotoxic action and underlying disrupted molecular pathways were elucidated with CellMinner pattern analysis and Gene Ontology enrichment analysis, according to which the lead compounds exert multi-target antiproliferative activity associated with oxidative stress induction and chromatin structure alteration. The betulonic acid diethylentriamine conjugate showed partial activity against methicillin-resistant S. aureus and the fungi C. neoformans. These results show that triterpenic polyamines, being analogs of steroidal squalamine and trodusquemine, are important substances for the search of new drugs with anticancer, antidiabetic, and antimicrobial activities.
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Affiliation(s)
- Oxana B. Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 pr. Oktyabrya, 450054 Ufa, Russia; (G.V.G.); (A.G.M.)
| | - Gul’nara V. Giniyatullina
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 pr. Oktyabrya, 450054 Ufa, Russia; (G.V.G.); (A.G.M.)
| | - Akhat G. Mustafin
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 pr. Oktyabrya, 450054 Ufa, Russia; (G.V.G.); (A.G.M.)
| | - Denis A. Babkov
- Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya st. 39, 400087 Volgograd, Russia; (D.A.B.); (E.V.S.)
| | - Elena V. Sokolova
- Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya st. 39, 400087 Volgograd, Russia; (D.A.B.); (E.V.S.)
| | - Alexander A. Spasov
- Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya st. 39, 400087 Volgograd, Russia; (D.A.B.); (E.V.S.)
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26
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Damar-Çelik D, Mataracı-Kara E, Savage PB, Özbek-Çelik B. Antibacterial and antibiofilm activities of ceragenins against Achromobacter species isolated from cystic fibrosis patients. J Chemother 2020; 33:216-227. [PMID: 32985386 DOI: 10.1080/1120009x.2020.1819702] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Achromobacter species, which are recognized as emerging pathogens isolated from patients with cystic fibrosis, are capable of forming biofilm in the respiratory tract in patients and innate multidrug resistance to antimicrobials. CSAs are cationic salt derivatives that mimic the activity of antimicrobial peptides and exhibit antimicrobial activity against bacteria. In this study, the in vitro activities of various ceragenins against Achromobacter-species biofilms were investigated comparatively with a conventional antibiotic (meropenem). Biofilm-formation inhibition and biofilm-adhesion inhibition were investigated on five strong biofilm-producing strains. The lowest MIC50 result was obtained with CSA-13. All of the tested CSAs showed significant biofilm inhibitory activity in the manner of a time- and concentration-dependent effect. To the best of our knowledge, this is the first article to evaluate the antibacterial and antibiofilm activities of tested CSAs against Achromobacter species.
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Affiliation(s)
- Damla Damar-Çelik
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Beyazit-Istanbul, Turkey
| | - Emel Mataracı-Kara
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Beyazit-Istanbul, Turkey
| | - Paul B Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
| | - Berna Özbek-Çelik
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Istanbul University, Beyazit-Istanbul, Turkey
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27
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Boes A, Brunel JM, Derouaux A, Kerff F, Bouhss A, Touze T, Breukink E, Terrak M. Squalamine and Aminosterol Mimics Inhibit the Peptidoglycan Glycosyltransferase Activity of PBP1b. Antibiotics (Basel) 2020; 9:antibiotics9070373. [PMID: 32630634 PMCID: PMC7400108 DOI: 10.3390/antibiotics9070373] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 11/20/2022] Open
Abstract
Peptidoglycan (PG) is an essential polymer of the bacterial cell wall and a major antibacterial target. Its synthesis requires glycosyltransferase (GTase) and transpeptidase enzymes that, respectively, catalyze glycan chain elongation and their cross-linking to form the protective sacculus of the bacterial cell. The GTase domain of bifunctional penicillin-binding proteins (PBPs) of class A, such as Escherichia coli PBP1b, belong to the GTase 51 family. These enzymes play an essential role in PG synthesis, and their specific inhibition by moenomycin was shown to lead to bacterial cell death. In this work, we report that the aminosterol squalamine and mimic compounds present an unexpected mode of action consisting in the inhibition of the GTase activity of the model enzyme PBP1b. In addition, selected compounds were able to specifically displace the lipid II from the active site in a fluorescence anisotropy assay, suggesting that they act as competitive inhibitors.
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Affiliation(s)
- Adrien Boes
- InBioS-Centre d’Ingénierie des Protéines, Liège University, 4000 Liège, Belgium; (A.B.); (A.D.); (F.K.)
| | - Jean Michel Brunel
- UMR_MD1, U-1261, Aix Marseille Univ, INSERM, SSA, MCT, 13385 Marseille, France;
| | - Adeline Derouaux
- InBioS-Centre d’Ingénierie des Protéines, Liège University, 4000 Liège, Belgium; (A.B.); (A.D.); (F.K.)
| | - Frédéric Kerff
- InBioS-Centre d’Ingénierie des Protéines, Liège University, 4000 Liège, Belgium; (A.B.); (A.D.); (F.K.)
| | - Ahmed Bouhss
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, 91198 Gif-sur-Yvette, France; (A.B.); (T.T.)
- Laboratoire Structure-Activite des Biomolecules Normales et Pathologiques (SABNP), Univ Evry, INSERM U1204, Universite Paris-Saclay, 91025 Evry, France
| | - Thierry Touze
- Institute for Integrative Biology of the Cell (I2BC), Université Paris-Saclay, 91198 Gif-sur-Yvette, France; (A.B.); (T.T.)
| | - Eefjan Breukink
- Membrane Biochemistry and Biophysics, Department of Chemistry, Faculty of Science, Utrecht University, 3584 CH Utrecht, The Netherlands;
| | - Mohammed Terrak
- InBioS-Centre d’Ingénierie des Protéines, Liège University, 4000 Liège, Belgium; (A.B.); (A.D.); (F.K.)
- Correspondence: ; Tel.: +33-4366-3332
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28
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Mansbach RA, Leus IV, Mehla J, Lopez CA, Walker JK, Rybenkov VV, Hengartner NW, Zgurskaya HI, Gnanakaran S. Machine Learning Algorithm Identifies an Antibiotic Vocabulary for Permeating Gram-Negative Bacteria. J Chem Inf Model 2020; 60:2838-2847. [PMID: 32453589 DOI: 10.1021/acs.jcim.0c00352] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Drug discovery faces a crisis. The industry has used up the "obvious" space in which to find novel drugs for biomedical applications, and productivity is declining. One strategy to combat this is rational approaches to expand the search space without relying on chemical intuition, to avoid rediscovery of similar spaces. In this work, we present proof of concept of an approach to rationally identify a "chemical vocabulary" related to a specific drug activity of interest without employing known rules. We focus on the pressing concern of multidrug resistance in Pseudomonas aeruginosa by searching for submolecules that promote compound entry into this bacterium. By synergizing theory, computation, and experiment, we validate our approach, explain the molecular mechanism behind identified fragments promoting compound entry, and select candidate compounds from an external library that display good permeation ability.
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Affiliation(s)
- Rachael A Mansbach
- Department of Theoretical Biology and Biophysics, Los Alamos National Lab, MS-K710, P.O. Box 1663, Los Alamos, New Mexico 87545-0001, United States
| | - Inga V Leus
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, SLSRC, Rm 1000, Norman, Oklahoma 73019-5251, United States
| | - Jitender Mehla
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, SLSRC, Rm 1000, Norman, Oklahoma 73019-5251, United States
| | - Cesar A Lopez
- Department of Theoretical Biology and Biophysics, Los Alamos National Lab, MS-K710, P.O. Box 1663, Los Alamos, New Mexico 87545-0001, United States
| | - John K Walker
- Pharmacology and Physiological Science, School of Medicine, Saint Louis University, Schwitalla Hall, Room M362, St. Louis, Missouri 63104, United States
| | - Valentin V Rybenkov
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, SLSRC, Rm 1000, Norman, Oklahoma 73019-5251, United States
| | - Nicolas W Hengartner
- Department of Theoretical Biology and Biophysics, Los Alamos National Lab, MS-K710, P.O. Box 1663, Los Alamos, New Mexico 87545-0001, United States
| | - Helen I Zgurskaya
- Department of Chemistry and Biochemistry, University of Oklahoma, 101 Stephenson Parkway, SLSRC, Rm 1000, Norman, Oklahoma 73019-5251, United States
| | - S Gnanakaran
- Department of Theoretical Biology and Biophysics, Los Alamos National Lab, MS-K710, P.O. Box 1663, Los Alamos, New Mexico 87545-0001, United States
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29
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Antibacterial AZT derivative regulates metastasis of breast cancer cells. Eur J Med Chem 2020; 193:112233. [PMID: 32199136 DOI: 10.1016/j.ejmech.2020.112233] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/10/2020] [Accepted: 03/10/2020] [Indexed: 12/15/2022]
Abstract
Antimicrobial peptides (AMP) with anticancer activity have drawn remarkable attention in modern treatments. However, long peptide length and protease instability are the most addressing factors, which hampers their further development as therapeutic agents. In view of this, herein, we designed and synthesized a series of AZT-based cationic small molecule incorporating a variety of hydrophobic groups and cationic charges, including amine and guanidine groups to mimic the amphipathic structure of AMPs. These compounds were evaluated for their antibacterial activity against Gram-positive and Gram-negative bacteria. Through an extensive structure activity relationship study (SAR), we identified ADG-2e as the most potent antibacterial agent, which exhibited remarkable potency against drug resistant bacterial strains such as MRSA and MDRPA. Further, ADG-2e was examined for their anti-metastatic ability by investigating the cancer cell migration and invasiveness through scratch wound-healing assay and transwell invasive assay, respectively. In addition, time-lapse cell tracking analysis also performed for analyzing the cell movement pattern. Treatment of ADG-2e against metastatic breast cancer cells (MDA-MB-231) suppressed tumor cell migration by multi-directional lamellipodium formation, indicating their anti-metastatic potential. Thus, our cationic AZT based small molecules may evolve as an appealing class of antibacterial agents with anti-metastasis potential.
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30
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Amabili P, Biavasco F, Brenciani A, Citterio B, Corbisiero D, Ferrazzano L, Fioriti S, Guerra G, Orena M, Rinaldi S. Simple amphiphilic α-hydrazido acids: Rational design, synthesis, and in vitro bioactivity profile of a novel class of potential antimicrobial compounds. Eur J Med Chem 2020; 189:112072. [DOI: 10.1016/j.ejmech.2020.112072] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/10/2020] [Accepted: 01/13/2020] [Indexed: 01/07/2023]
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31
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Bozkurt Güzel Ç, Avci NM, Savage P. In Vitro Activities of the Cationic Steroid Antibiotics CSA-13, CSA-131, CSA-138, CSA-142, and CSA-192 Against Carbapenem-resistant Pseudomonas aeruginosa. Turk J Pharm Sci 2020; 17:63-67. [PMID: 32454762 DOI: 10.4274/tjps.galenos.2018.26566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 10/25/2018] [Indexed: 12/01/2022]
Abstract
Objectives Pseudomonas aeruginosa is an important opportunistic pathogen that is difficult to treat because of the antibiotic resistance that has developed in recent years. Increasing carbapenem resistance has led to a rise in hospital infections caused by this bacterium. As a result, researchers have begun to search for new molecules. Ceragenins are the general name for membrane-acting cationic steroid antimicrobial molecules that have activity similar to that of antimicrobial peptides. In this study, we investigated the in vitro activities of the cationic steroid antibiotics (CSAs) CSA-13, CSA-131, CSA-138, CSA-142, CSA-192, and colistin on carbapenem-resistant Pseudomonas aeruginosa (CRPA). Materials and Methods Minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) were determined by broth dilution method. Results The MIC50 (μg/mL) values of CSA-13, CSA-131, CSA-138, CSA-142, CSA-192, colistin, and meropenem were 8, 4, 8, 16, 32, 1, and 16, respectively. The MBC values were equal to or twice the MIC values. Conclusion CSA-131 and CSA-138 appear to be good candidates for CRPA treatment. However, the lack of stability, efficacy, and pharmacokinetic properties of CSA requires further research in the future in vivo and in vitro.
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Affiliation(s)
- Çağla Bozkurt Güzel
- İstanbul University, Faculty of Pharmacy, Department of Pharmaceutical Microbiology, İstanbul, Turkey
| | - Nevin Meltem Avci
- İstanbul University, Faculty of Pharmacy, Department of Pharmaceutical Microbiology, İstanbul, Turkey
| | - Paul Savage
- Brigham Young University, Department of Chemistry and Biochemistry, Provo, Utah, USA
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32
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Spivak AY, Khalitova RR, Nedopekina DA, Gubaidullin RR. Antimicrobial properties of amine- and guanidine-functionalized derivatives of betulinic, ursolic and oleanolic acids: Synthesis and structure/activity evaluation. Steroids 2020; 154:108530. [PMID: 31678136 DOI: 10.1016/j.steroids.2019.108530] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 10/20/2019] [Indexed: 01/03/2023]
Abstract
A series of 34 new amine- and guanidine-functionalized derivatives of betulinic, ursolic, and oleanolic acids were synthesized and tested for their antimicrobial activity against the growth of four bacterial strains (Escherichia coli, Acinetobacter baumannii, Pseudomonas aeruginosa, and Staphylococcus aureus (MRSA)) and two fungal strains (Candida albicans and Cryptococcus neoformans). The obtained compounds were also tested for the cytotoxic effect against HEK293 human embryonic kidney cell line and hemolytic activity against human red blood cells. Most of the prepared amino and guanidinium derivatives of betulinic, ursolic, and oleanolic acids showed a considerably higher bacteriostatic activity against methicillin-resistant S. aureus than the parent compounds. The most active compounds (MICs ≤ 0.25 μg/ml or 0.4-0.5 μM) were superior over the clinically used antibiotic vancomycin in the antibacterial effect (MIC of 1 μg/ml or 0.7 μM). Apart from antibacterial activity, new triterpene acid derivatives exhibited excellent antifungal activity against Cryptococcus neoformans, with MICs values being as low as 0.25 μg/ml (0.4 μM), and were approximately 65 times as active as fluconazole, a known antifungal agent. Four most promising compounds we identified (7, 13, 24, and 33) showed not only high bacteriostatic effect, but also low cytotoxicity against mammalian HEK293 cells and high hemolytic selectivity.
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Affiliation(s)
- Anna Yu Spivak
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, Ufa 450075, Russian Federation.
| | - Rezeda R Khalitova
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, Ufa 450075, Russian Federation
| | - Darya A Nedopekina
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, Ufa 450075, Russian Federation
| | - Rinat R Gubaidullin
- Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, 141 Prospekt Oktyabrya, Ufa 450075, Russian Federation
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33
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Wnorowska U, Fiedoruk K, Piktel E, Prasad SV, Sulik M, Janion M, Daniluk T, Savage PB, Bucki R. Nanoantibiotics containing membrane-active human cathelicidin LL-37 or synthetic ceragenins attached to the surface of magnetic nanoparticles as novel and innovative therapeutic tools: current status and potential future applications. J Nanobiotechnology 2020; 18:3. [PMID: 31898542 PMCID: PMC6939332 DOI: 10.1186/s12951-019-0566-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 12/21/2019] [Indexed: 02/07/2023] Open
Abstract
Nanotechnology-based therapeutic approaches have attracted attention of scientists, in particular due to the special features of nanomaterials, such as adequate biocompatibility, ability to improve therapeutic efficiency of incorporated drugs and to limit their adverse effects. Among a variety of reported nanomaterials for biomedical applications, metal and metal oxide-based nanoparticles offer unique physicochemical properties allowing their use in combination with conventional antimicrobials and as magnetic field-controlled drug delivery nanocarriers. An ever-growing number of studies demonstrate that by combining magnetic nanoparticles with membrane-active, natural human cathelicidin-derived LL-37 peptide, and its synthetic mimics such as ceragenins, innovative nanoagents might be developed. Between others, they demonstrate high clinical potential as antimicrobial, anti-cancer, immunomodulatory and regenerative agents. Due to continuous research, knowledge on pleiotropic character of natural antibacterial peptides and their mimics is growing, and it is justifying to stay that the therapeutic potential of nanosystems containing membrane active compounds has not been exhausted yet.
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Affiliation(s)
- Urszula Wnorowska
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Mickiewicza 2c, 15-222, Białystok, Poland
| | - Krzysztof Fiedoruk
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Mickiewicza 2c, 15-222, Białystok, Poland
| | - Ewelina Piktel
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Mickiewicza 2c, 15-222, Białystok, Poland
| | - Suhanya V Prasad
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Mickiewicza 2c, 15-222, Białystok, Poland
| | - Magdalena Sulik
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Mickiewicza 2c, 15-222, Białystok, Poland
| | - Marianna Janion
- Faculty of Medicine and Health Sciences, The Jan Kochanowski University in Kielce, Al. IX Wiekow Kielc 19A, 25-317, Kielce, Poland
| | - Tamara Daniluk
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Mickiewicza 2c, 15-222, Białystok, Poland
| | - Paul B Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, 84602, USA
| | - Robert Bucki
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Mickiewicza 2c, 15-222, Białystok, Poland.
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BOZKURT GÜZEL Ç, HACIOĞLU M, İNCİ G, SAVAGE PB. Antibacterial and Antibiofilm Activities of Ceragenins against Pseudomonas aeruginosa Clinical Isolates. Turk J Pharm Sci 2019; 16:444-449. [PMID: 32454748 PMCID: PMC7227877 DOI: 10.4274/tjps.galenos.2018.59023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 08/16/2018] [Indexed: 02/01/2023]
Abstract
OBJECTIVES Pseudomonas aeruginosa can cause life-threatening infections that are difficult to treat due to its high resistance to antibiotics and its ability to form antibiotic tolerant biofilms. Ceragenins, designed to mimic the activities of antimicrobial peptides, represent a promising new group of antibacterial agents that display potent anti-P. aeruginosa activity. The aim of this study was to evaluate the antibacterial and antibiofilm activities of ceragenins in comparison to colistin and ciprofloxacin against P. aeruginosa strains. MATERIALS AND METHODS Biofilm formation and determination of minimum inhibitory concentration (MIC) values of ceragenins (CSA-13, CSA-44, CSA-131, and CSA-138), ciprofloxacin, and colistin were evaluated against 25 P. aeruginosa isolates. Four good biofilm-producing strains were chosen for biofilm studies, and sessile MICs and inhibition of molecule adhesion and biofilm formation were evaluated. RESULTS The MIC50 (μg/mL) values of CSA-13, CSA-44, CSA-131, CSA-138, ciprofloxacin, and colistin were 8, 8, 8, 16, 1, and 2, respectively. The sessile MICs for molecules were greater than planktonic MICs. CSA-13, CSA-44, and CSA-131 were more efficient after 4 h incubation while CSA-138, ciprofloxacin and colistin were more efficient after 1 h incubation. The most efficient agent for inhibition of adhesion was colistin (up to 45%). CSA-131, CSA-138, and colistin were the most efficient agents for inhibition of biofilm formation (up to 90%). CONCLUSION Our study highlights the potential of CSA-131 and CSA-138 as potential alternative agents to conventional antibiotics for the eradication of biofilms of P. aeruginosa.
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Affiliation(s)
- Çağla BOZKURT GÜZEL
- İstanbul University, Faculty of Pharmacy, Department of Pharmaceutical Microbiology, İstanbul, Turkey
| | - Mayram HACIOĞLU
- İstanbul University, Faculty of Pharmacy, Department of Pharmaceutical Microbiology, İstanbul, Turkey
| | - Gözde İNCİ
- İstanbul University, Faculty of Pharmacy, Department of Pharmaceutical Microbiology, İstanbul, Turkey
| | - Paul B. SAVAGE
- Brigham Young University, Department of Chemistry and Biochemistry, Provo, Utah, USA
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Effects of ceragenins and conventional antimicrobials on Candida albicans and Staphylococcus aureus mono and multispecies biofilms. Diagn Microbiol Infect Dis 2019; 95:114863. [DOI: 10.1016/j.diagmicrobio.2019.06.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 05/31/2019] [Accepted: 06/22/2019] [Indexed: 11/22/2022]
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Cautela J, Severoni E, Redondo-Gómez C, di Gregorio MC, Del Giudice A, Sennato S, Angelini R, D'Abramo M, Schillén K, Galantini L. C-12 vs C-3 substituted bile salts: An example of the effects of substituent position and orientation on the self-assembly of steroid surfactant isomers. Colloids Surf B Biointerfaces 2019; 185:110556. [PMID: 31704607 DOI: 10.1016/j.colsurfb.2019.110556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/08/2019] [Accepted: 10/02/2019] [Indexed: 12/31/2022]
Abstract
Biomolecule derivatives are transversally used in nanotechnology. Deciphering their aggregation behavior is a crucial issue for the rational design of functional materials. To this end, it is necessary to build libraries of selectively functionalized analogues and infer general rules. In this work we enrich the highly applicative oriented collection of steroid derivatives, by reporting a rare example of C-12 selectively modified bile salt. While nature often exploits such position to encode functions, it is unusual and not trivial to prepare similar analogues in the laboratory. The introduction of a tert-butyl phenyl residue at C-12 provided a molecule with a self-assembly that remarkably switched from rigid pole-like structures to twisted ribbons at a biologically relevant critical temperature (∼25 °C). The system was characterized by microscopy and spectroscopy techniques and compared with the C-3 functionalized analogue. The twisted ribbons generate samples with a gel texture and a viscoelastic response. The parallel analysis of the two systems suggested that the observed thermoresponsive self-assemblies occur at similar critical temperatures and are probably dictated by the nature of the substituent, but involve aggregates with different structures depending on position and orientation of the substituent. This study highlights the self-assembly properties of two appealing thermoresponsive systems. Moreover, it adds fundamental insights hereto missing in the investigations of the relation between self-assembly and structure of synthetic steroids, which are valuable for the rational design of steroidal amphiphiles.
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Affiliation(s)
- Jacopo Cautela
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Emilia Severoni
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Carlos Redondo-Gómez
- Escuela de Química, Centro de Investigación en Electroquímica y Energía Química (CELEQ), Universidad de Costa Rica, San José, Costa Rica
| | | | | | - Simona Sennato
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Roberta Angelini
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Marco D'Abramo
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
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Mashaly G, Shrief R. Candida glabrata complex from patients with healthcare-associated infections in Mansoura University Hospitals, Egypt: distribution, antifungal susceptibility and effect of fluconazole and polymyxin B combination. Germs 2019; 9:125-132. [PMID: 31646142 DOI: 10.18683/germs.2019.1167] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 06/26/2019] [Accepted: 06/29/2019] [Indexed: 01/31/2023]
Abstract
Introduction Candida glabrata complex is composed of three cryptic species, Candida glabrata sensu stricto, C. bracarensis and C. nivariensis. Its reduced susceptibility to fluconazole is responsible for treatment failure of its infections. Combination therapy is recommended to treat these resistant strains. This study assessed the distribution of C. glabrata complex collected from patients in Mansoura University Hospitals and their antifungal susceptibility, with evaluation of fluconazole and polymyxin B combination against them. Methods C. glabrata complex was collected from patients with healthcare-associated infections. The isolates were identified biochemically then the species were detected using multiplex PCR. The susceptibility of isolates to antifungals and polymyxin B was tested by the microdilution assay. The effect of fluconazole and polymyxin B combination was assessed by checkerboard microdilution and time kill assays. Results This study included 45 isolates of Candida glabrata complex. The common isolate was Candida glabrata sensu stricto (38 isolates). There were 4 isolates of C. bracarensis and three isolates of C. nivariensis. All isolates were susceptible to amphotericin B, and 17.8% were susceptible to itraconazole. Regarding fluconazole, 48.9% of isolates were susceptible dose-dependent and 51.1% were resistant. Synergistic effect of the combination was observed in 68.9% of isolates by the checkerboard method and in 66.7% of isolates using the time kill assay. Conclusions Candida glabrata sensu stricto is the main member of the complex. Combination of fluconazole and polymyxin B can be considered a treatment option for fluconazole resistant C. glabrata complex infections. In vivo studies are needed to validate these results.
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Affiliation(s)
- Ghada Mashaly
- MD, Department of Medical Microbiology and Immunology, Faculty of Medicine, Mansoura University, Mansoura, 35516, Egypt
| | - Raghdaa Shrief
- PhD, Department of Medical Microbiology and Immunology, Faculty of Medicine, Mansoura University, Mansoura, 35516, Egypt
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Kumar S, Thakur J, Yadav K, Mitra M, Pal S, Ray A, Gupta S, Medatwal N, Gupta R, Mishra D, Rani P, Padhi S, Sharma P, Kapil A, Srivastava A, Priyakumar UD, Dasgupta U, Thukral L, Bajaj A. Cholic Acid-Derived Amphiphile which Combats Gram-Positive Bacteria-Mediated Infections via Disintegration of Lipid Clusters. ACS Biomater Sci Eng 2019; 5:4764-4775. [PMID: 33448819 DOI: 10.1021/acsbiomaterials.9b00706] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Inappropriate and uncontrolled use of antibiotics results in the emergence of antibiotic resistance, thereby threatening the present clinical regimens to treat infectious diseases. Therefore, new antimicrobial agents that can prevent bacteria from developing drug resistance are urgently needed. Selective disruption of bacterial membranes is the most effective strategy for combating microbial infections as accumulation of genetic mutations will not allow for the emergence of drug resistance against these antimicrobials. In this work, we tested cholic acid (CA) derived amphiphiles tethered with different alkyl chains for their ability to combat Gram-positive bacterial infections. In-depth biophysical and biomolecular simulation studies suggested that the amphiphile with a hexyl chain (6) executes more effective interactions with Gram-positive bacterial membranes as compared to other hydrophobic counterparts. Amphiphile 6 is effective against multidrug resistant Gram-positive bacterial strains as well and does not allow the adherence of S. aureus on amphiphile 6 coated catheters implanted in mice. Further, treatment of wound infections with amphiphile 6 clears the bacterial infections. Therefore, the current study presents strategic guidelines in design and development of CA-derived membrane-targeting antimicrobials for Gram-positive bacterial infections.
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Affiliation(s)
- Sandeep Kumar
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India.,Manipal Academy of Higher Education, Tiger Circle Road, Madhav Nagar, Manipal-576104, Karnataka, India
| | - Jyoti Thakur
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal Bypass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India
| | - Kavita Yadav
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India.,Manipal Academy of Higher Education, Tiger Circle Road, Madhav Nagar, Manipal-576104, Karnataka, India
| | - Madhurima Mitra
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India
| | - Sanjay Pal
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India.,Kalinga Institute of Industrial Technology, KIIT Road, Patia, Bhubaneswar-751024, Odisha, India
| | - Arjun Ray
- CSIR-Institute of Genomics and Integrative Biology, South Campus, Mathura Road, Opp: Sukhdev Vihar Bus Depot, New Delhi-110025, India
| | - Siddhi Gupta
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India
| | - Nihal Medatwal
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India
| | - Ragini Gupta
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India
| | - Deepakkumar Mishra
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India
| | - Parul Rani
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India
| | - Siladitya Padhi
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Professor CR Rao Road, Gachibowli, Hyderabad-500032, India
| | - Priyanka Sharma
- Department of Microbiology, All India Institute of Medical Sciences, Sri Aurobindo Marg, Ansari Nagar, New Delhi-110029, India
| | - Arti Kapil
- Department of Microbiology, All India Institute of Medical Sciences, Sri Aurobindo Marg, Ansari Nagar, New Delhi-110029, India
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal Bypass Road, Bhauri, Bhopal-462066, Madhya Pradesh, India
| | - U Deva Priyakumar
- Centre for Computational Natural Sciences and Bioinformatics, International Institute of Information Technology, Professor CR Rao Road, Gachibowli, Hyderabad-500032, India
| | - Ujjaini Dasgupta
- Amity Institute of Integrative Sciences and Health, Amity University, Amity Education Valley Gurugram, Panchgaon, Manesar, Gurugram-122413, Haryana, India
| | - Lipi Thukral
- CSIR-Institute of Genomics and Integrative Biology, South Campus, Mathura Road, Opp: Sukhdev Vihar Bus Depot, New Delhi-110025, India
| | - Avinash Bajaj
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, NCR Biotech Science Cluster, 3rd Milestone Faridabad-Gurgaon Expressway, Faridabad-121001, Haryana, India
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Nadaraia NS, Amiranashvili LS, Merlani M, Kakhabrishvili ML, Barbakadze NN, Geronikaki A, Petrou A, Poroikov V, Ciric A, Glamoclija J, Sokovic M. Novel antimicrobial agents' discovery among the steroid derivatives. Steroids 2019; 144:52-65. [PMID: 30776376 DOI: 10.1016/j.steroids.2019.02.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/12/2019] [Indexed: 02/07/2023]
Abstract
Fourteen steroid compounds were in silico evaluated using computer program PASS as antimicrobial agents. The experimental studies evaluation revealed that all compounds have good antibacterial activity with MIC at range of 0.003-0.96 mg/mL and MBC 0.06-1.92 mg/mL. Almost all compounds except of compound 4 (3β-acetoxy-1/-p-chlorophenyl-3/-methyl-5α-androstano[17,16-d]pyrazoline) were more potent than Ampicillin, and they were equipotent or more potent than Streptomycine. All compounds exhibited good antifungal activity with MIC at 0.003-0.96 mg/mL and MFC at 0.006-1.92 mg/mL but with different sensitivity against fungi tested. According to docking studies 14-alpha demethylase inhibition may be responsible for antifungal activity. Prediction of toxicity by PROTOX and GUSAR revealed that compounds have low toxicity and can be considered as potential lead compounds for the further studies.
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Affiliation(s)
- Nanuli Sh Nadaraia
- TSMU I.Kutateladze Institute of Pharmacochemistry, Tbilisi 0159, Georgia
| | | | - Maia Merlani
- TSMU I.Kutateladze Institute of Pharmacochemistry, Tbilisi 0159, Georgia
| | | | - Nana N Barbakadze
- TSMU I.Kutateladze Institute of Pharmacochemistry, Tbilisi 0159, Georgia
| | - Athina Geronikaki
- Aristotle University, School of Pharmacy, Thessaloniki 54124, Greece.
| | - Anthi Petrou
- Aristotle University, School of Pharmacy, Thessaloniki 54124, Greece
| | | | - Ana Ciric
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Siniša Stanković, University of Belgrade, Bulevar Despota Stefana, Serbia
| | - Jarmila Glamoclija
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Siniša Stanković, University of Belgrade, Bulevar Despota Stefana, Serbia
| | - Marina Sokovic
- Mycological Laboratory, Department of Plant Physiology, Institute for Biological Research, Siniša Stanković, University of Belgrade, Bulevar Despota Stefana, Serbia
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Di Ruocco C, Acocella MR, Guerra G. Release of Cationic Drugs from Charcoal. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E683. [PMID: 30823578 PMCID: PMC6416595 DOI: 10.3390/ma12040683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 02/18/2019] [Accepted: 02/21/2019] [Indexed: 11/16/2022]
Abstract
The goal of this research is to improve preparation of charcoal adducts in a manner suitable for cationic drug release, possibly using an eco-friendly procedure. Charcoal, widely commercialized for human ingestion, is oxidized by hydrogen peroxide in mild conditions. Adducts of a cationic drug (lidocaine hydrochloride, a medication used as local anesthetic) with charcoal are prepared after basification of charcoal and characterized mainly by elemental analysis, wide-angle X-ray diffraction, infrared spectroscopy and thermogravimetry. The drug in the prepared adducts is present in amount close to 30% by weight and can be readily released to both neutral and acidic aqueous solutions. Cation release, as studied by UV spectra of aqueous solutions, is faster in acidic solutions and is faster than for adducts with graphite oxide, which can be prepared only in harsh conditions.
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Affiliation(s)
- Chiara Di Ruocco
- Department of Chemistry and Biology and INSTM Research Unit, Università di Salerno, via Ponte don Melillo, 84084 Fisciano (SA), Italy.
| | - Maria Rosaria Acocella
- Department of Chemistry and Biology and INSTM Research Unit, Università di Salerno, via Ponte don Melillo, 84084 Fisciano (SA), Italy.
| | - Gaetano Guerra
- Department of Chemistry and Biology and INSTM Research Unit, Università di Salerno, via Ponte don Melillo, 84084 Fisciano (SA), Italy.
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Civitello ML, Denton R, Zasloff MA, Malone JH. Activation of the Bile Acid Pathway and No Observed Antimicrobial Peptide Sequences in the Skin of a Poison Frog. G3 (BETHESDA, MD.) 2019; 9:581-589. [PMID: 30606754 PMCID: PMC6385980 DOI: 10.1534/g3.118.200880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 12/19/2018] [Indexed: 11/18/2022]
Abstract
The skin secretions of many frogs have genetically-encoded, endogenous antimicrobial peptides (AMPs). Other species, especially aposematic poison frogs, secrete exogenously derived alkaloids that serve as potent defense molecules. The origins of these defense systems are not clear, but a novel bile-acid derived metabolite, tauromantellic acid, was recently discovered and shown to be endogenous in poison frogs (Mantella, Dendrobates, and Epipedobates). These observations raise questions about the evolutionary history of AMP genetic elements, the mechanism and function of tauromatellic acid production, and links between these systems. To understand the diversity and expression of AMPs among frogs, we assembled skin transcriptomes of 13 species across the anuran phylogeny. Our analyses revealed a diversity of AMPs and AMP expression levels across the phylogenetic history of frogs, but no observations of AMPs in Mantella We examined genes expressed in the bile-acid metabolic pathway and found that CYP7A1 (Cytochrome P450), BAAT (bile acid-CoA: amino acid N-acyltransferase), and AMACR (alpha-methylacyl-CoA racemase) were highly expressed in the skin of M. betsileo and either lowly expressed or absent in other frog species. In particular, CYP7A1 catalyzes the first reaction in the cholesterol catabolic pathway and is the rate-limiting step in regulation of bile acid synthesis, suggesting unique activation of the bile acid pathway in Mantella skin. The activation of the bile acid pathway in the skin of Mantella and the lack of observed AMPs fuel new questions about the evolution of defense compounds and the ectopic expression of the bile-acid pathway.
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Affiliation(s)
- Megan L Civitello
- Institute of Systems Genomics, Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut 06269
| | - Robert Denton
- Institute of Systems Genomics, Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut 06269
| | - Michael A Zasloff
- Georgetown University School of Medicine, MedStar Georgetown Transplant Institute, Washington D.C. 20057
| | - John H Malone
- Institute of Systems Genomics, Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut 06269
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Bozkurt Guzel C, Oyardi O, B. Savage P. Comparative in vitro antimicrobial activities of CSA-142 and CSA-192, second-generation ceragenins, with CSA-13 against various microorganisms. J Chemother 2019; 30:332-337. [DOI: 10.1080/1120009x.2018.1534567] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Cagla Bozkurt Guzel
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Istanbul University, Istanbul, Turkey,
| | - Ozlem Oyardi
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Istanbul University, Istanbul, Turkey,
| | - Paul B. Savage
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA
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Singla P, Dalal P, Kaur M, Arya G, Nimesh S, Singh R, Salunke DB. Bile Acid Oligomers and Their Combination with Antibiotics To Combat Bacterial Infections. J Med Chem 2018; 61:10265-10275. [DOI: 10.1021/acs.jmedchem.8b01433] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Poonam Singla
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Priyanka Dalal
- Department of Microbial Biotechnology, Panjab University, Chandigarh 160014, India
| | - Mahaldeep Kaur
- Department of Microbial Biotechnology, Panjab University, Chandigarh 160014, India
| | - Geeta Arya
- Department of Biotechnology, Central University of Rajasthan, Ajmer 305817, India
| | - Surendra Nimesh
- Department of Biotechnology, Central University of Rajasthan, Ajmer 305817, India
| | - Rachna Singh
- Department of Microbial Biotechnology, Panjab University, Chandigarh 160014, India
| | - Deepak B. Salunke
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
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Haubrich BA. Microbial Sterolomics as a Chemical Biology Tool. Molecules 2018; 23:E2768. [PMID: 30366429 PMCID: PMC6278499 DOI: 10.3390/molecules23112768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/23/2018] [Accepted: 10/23/2018] [Indexed: 02/06/2023] Open
Abstract
Metabolomics has become a powerful tool in chemical biology. Profiling the human sterolome has resulted in the discovery of noncanonical sterols, including oxysterols and meiosis-activating sterols. They are important to immune responses and development, and have been reviewed extensively. The triterpenoid metabolite fusidic acid has developed clinical relevance, and many steroidal metabolites from microbial sources possess varying bioactivities. Beyond the prospect of pharmacognostical agents, the profiling of minor metabolites can provide insight into an organism's biosynthesis and phylogeny, as well as inform drug discovery about infectious diseases. This review aims to highlight recent discoveries from detailed sterolomic profiling in microorganisms and their phylogenic and pharmacological implications.
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Affiliation(s)
- Brad A Haubrich
- Department of Chemistry, University of Nevada, Reno, Reno, NV 89557, USA.
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Bozkurt-Guzel C, Hacioglu M, Savage PB. Investigation of the in vitro antifungal and antibiofilm activities of ceragenins CSA-8, CSA-13, CSA-44, CSA-131, and CSA-138 against Candida species. Diagn Microbiol Infect Dis 2018; 91:324-330. [DOI: 10.1016/j.diagmicrobio.2018.03.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 01/12/2018] [Accepted: 03/20/2018] [Indexed: 12/24/2022]
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New cholic acid analogs: synthesis and 17 β-hydroxydehydrogenase (17 β-HSD) inhibition activity. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2018-0192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The 17β-hydroxysteroid dehydrogenase (17β-HSD) enzyme family is involved in the biosynthesis of active steroids and its inhibition constitutes an interesting approach for treating estrogen-, androgen-dependent cancers and osteoporosis. In this study, a new series of cholic acid analogs was designed with the goal of improving the biological activity as 17β-HSD1 and 17β-HSD2 inhibitors. To this end, 23-cholyl amides 4–7, 3-O-p-toluenesulfonyl-23-cholyl amides 10–12, 23-cholyl-carbohydrazide 14, carbothioamide analog 15, and 23-cholyl-acylhydrazone derivatives 18–22 were synthesized from cholic acid (3) via coupling, sulfonation and substitution reactions. Basic treatment of keto group of 5 with p-bromoaniline afforded 8, meanwhile acidic treatment of 3 with thiosemicarbazide furnished the 23-cholyl-thiadiazole derivative 16. The synthesized compounds were evaluated for their inhibition activity against 17β-HSD1 and 17β-HSD2, and were found inactive at 1.0 μm concentration (inhibition <10%). However, the steroids 12, 21 and 22 showed inhibition of 21.1, 23.9 and 21.3%, respectively, against 17β-HSD2 at the same concentration. Therefore, these steroidal analogs can be further structurally modified to optimize their inhibition activity against 17β-HSD2 for the development of potential therapeutics.
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Blanchet M, Borselli D, Rodallec A, Peiretti F, Vidal N, Bolla JM, Digiorgio C, Morrison KR, Wuest WM, Brunel JM. Claramines: A New Class Of Broad-Spectrum Antimicrobial Agents With Bimodal Activity. ChemMedChem 2018; 13:1018-1027. [DOI: 10.1002/cmdc.201800073] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Marine Blanchet
- Centre de Recherche en Cancérologie de Marseille (CRCM), CNRS, UMR 7258, Institut Paoli Calmette; Aix-Marseille Université UM 105, Inserm, U1068, Faculté de Pharmacie; 13385 Marseille France
| | - Diane Borselli
- Faculté de Médecine; Aix-Marseille Université, IRBA, TMCD2 UMR-MD1; 13385 Marseille France
| | - Anne Rodallec
- Centre de Recherche en Cancérologie de Marseille (CRCM), CNRS, UMR 7258, Institut Paoli Calmette; Aix-Marseille Université UM 105, Inserm, U1068, Faculté de Pharmacie; 13385 Marseille France
| | - Franck Peiretti
- Aix-Marseille Université, INSERM 1263, INRA1260, C2VN; 13385 Marseille France
| | - Nicolas Vidal
- YELEN, 10 Bd. Tempête; 13820 Ensues la Redonne France
| | - Jean-Michel Bolla
- Faculté de Médecine; Aix-Marseille Université, IRBA, TMCD2 UMR-MD1; 13385 Marseille France
| | - Carole Digiorgio
- Laboratoire de Mutagénèse Environnementale; Aix-Marseille Université, CNRS, IRD, IMBE UMR 7263; 13385 Marseille France
| | - Kelly R. Morrison
- Department of Chemistry; Emory University; 1515 Dickey Drive Atlanta GA 30322 USA
| | - William M. Wuest
- Department of Chemistry; Emory University; 1515 Dickey Drive Atlanta GA 30322 USA
| | - Jean Michel Brunel
- Centre de Recherche en Cancérologie de Marseille (CRCM), CNRS, UMR 7258, Institut Paoli Calmette; Aix-Marseille Université UM 105, Inserm, U1068, Faculté de Pharmacie; 13385 Marseille France
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48
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Bergstrom BE, Abdelkhalek A, Younis W, Hammac GK, Townsend WM, Seleem MN. Antibacterial activity and safety of commercial veterinary cationic steroid antibiotics and neutral superoxidized water. PLoS One 2018. [PMID: 29513686 PMCID: PMC5841667 DOI: 10.1371/journal.pone.0193217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Antibiotic resistance of bacteria common to the ocular surface is an evolving problem. Thus, novel treatment options with new modes of action are required. We investigated the antibacterial activity and safety of three commercially available topical veterinary ophthalmic products (cationic steroid antibiotics, products A and B, and a neutral superoxidized water, product C) to determine their potential use as antimicrobial alternatives. The minimum inhibitory concentrations (MIC) of the three products were determined against 17 antibiotic resistant bacterial clinical isolates from the ocular surface. Using a standard cytotoxicity assay, the products at varying concentrations were evaluated with a corneal fibroblast cell line and a macrophage-like cell line to determine their potential toxic effect in vitro. The commercial ophthalmic solutions, ofloxacin 0.3%, tobramycin 0.3% and gentamicin 0.3% were used as positive controls for the MIC and tobramycin 0.3% was used as positive control for the cytotoxicity assays. For the MIC, Product C showed no inhibition of growth for any organisms, while Products A and B showed inhibition of growth similar to slightly less than the positive controls. For the cytotoxicity assays, Product C exhibited minimal toxicity while Products A and B exhibited toxicity similar to the controls. In conclusion, Product C had no antibacterial activity in these assays, while Products A and B had antibacterial profiles similar to slightly less than common topical ophthalmic antibiotics and cytotoxicity profiles similar to common topical ophthalmic antibiotics. To our knowledge, this is the first report on the antibacterial activity and safety of the cationic steroid antibiotics and superoxidized water.
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Affiliation(s)
- Benjamin E. Bergstrom
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, United States of America
| | - Ahmed Abdelkhalek
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, United States of America
| | - Waleed Younis
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, United States of America
| | - G. Kenitra Hammac
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, United States of America
| | - Wendy M. Townsend
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, United States of America
- * E-mail:
| | - Mohamed N. Seleem
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, United States of America
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49
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Kouassi MC, Thébault P, Rihouey C, Dé E, Labat B, Picton L, Dulong V. Carboxymethylpullulan Grafted with Aminoguaiacol: Synthesis, Characterization, and Assessment of Antibacterial and Antioxidant Properties. Biomacromolecules 2017; 18:3238-3251. [DOI: 10.1021/acs.biomac.7b00899] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marie-Carole Kouassi
- Laboratory Polymères, Biopolymères, Surfaces, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Pascal Thébault
- Laboratory Polymères, Biopolymères, Surfaces, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Christophe Rihouey
- Laboratory Polymères, Biopolymères, Surfaces, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Emmanuelle Dé
- Laboratory Polymères, Biopolymères, Surfaces, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Béatrice Labat
- Laboratory Polymères, Biopolymères, Surfaces, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Luc Picton
- Laboratory Polymères, Biopolymères, Surfaces, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Virginie Dulong
- Laboratory Polymères, Biopolymères, Surfaces, Normandie Univ, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
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50
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Seydlová G, Pohl R, Zborníková E, Ehn M, Šimák O, Panova N, Kolář M, Bogdanová K, Večeřová R, Fišer R, Šanderová H, Vítovská D, Sudzinová P, Pospíšil J, Benada O, Křížek T, Sedlák D, Bartůněk P, Krásný L, Rejman D. Lipophosphonoxins II: Design, Synthesis, and Properties of Novel Broad Spectrum Antibacterial Agents. J Med Chem 2017; 60:6098-6118. [PMID: 28654257 DOI: 10.1021/acs.jmedchem.7b00355] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The increase in the number of bacterial strains resistant to known antibiotics is alarming. In this study we report the synthesis of novel compounds termed Lipophosphonoxins II (LPPO II). We show that LPPO II display excellent activities against Gram-positive and -negative bacteria, including pathogens and multiresistant strains. We describe their mechanism of action-plasmatic membrane pore-forming activity selective for bacteria. Importantly, LPPO II neither damage nor cross the eukaryotic plasmatic membrane at their bactericidal concentrations. Further, we demonstrate LPPO II have low propensity for resistance development, likely due to their rapid membrane-targeting mode of action. Finally, we reveal that LPPO II are not toxic to either eukaryotic cells or model animals when administered orally or topically. Collectively, these results suggest that LPPO II are highly promising compounds for development into pharmaceuticals.
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Affiliation(s)
- Gabriela Seydlová
- Department of Genetics and Microbiology, Faculty of Science, Charles University , Viničná 5, 128 43 Prague 2, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v.v.i. , Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Eva Zborníková
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v.v.i. , Flemingovo nám. 2, 166 10 Prague 6, Czech Republic.,Department of Analytical Chemistry, Faculty of Science, Charles University , Albertov 6, 128 43 Prague 2, Czech Republic
| | - Marcel Ehn
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v.v.i. , Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Ondřej Šimák
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v.v.i. , Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
| | - Natalya Panova
- Institute of Microbiology, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Milan Kolář
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University Olomouc , Hněvotínská 3, 775 15 Olomouc, Czech Republic
| | - Kateřina Bogdanová
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University Olomouc , Hněvotínská 3, 775 15 Olomouc, Czech Republic
| | - Renata Večeřová
- Department of Microbiology, Faculty of Medicine and Dentistry, Palacký University Olomouc , Hněvotínská 3, 775 15 Olomouc, Czech Republic
| | - Radovan Fišer
- Department of Genetics and Microbiology, Faculty of Science, Charles University , Viničná 5, 128 43 Prague 2, Czech Republic
| | - Hana Šanderová
- Institute of Microbiology, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Dragana Vítovská
- Institute of Microbiology, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Petra Sudzinová
- Department of Genetics and Microbiology, Faculty of Science, Charles University , Viničná 5, 128 43 Prague 2, Czech Republic.,Institute of Microbiology, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Jiří Pospíšil
- Department of Genetics and Microbiology, Faculty of Science, Charles University , Viničná 5, 128 43 Prague 2, Czech Republic.,Institute of Microbiology, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Oldřich Benada
- Institute of Microbiology, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Tomáš Křížek
- Department of Analytical Chemistry, Faculty of Science, Charles University , Albertov 6, 128 43 Prague 2, Czech Republic
| | - David Sedlák
- Institute of Molecular Genetics, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Petr Bartůněk
- Institute of Molecular Genetics, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Libor Krásný
- Institute of Microbiology, Czech Academy of Sciences v.v.i. , Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Dominik Rejman
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences v.v.i. , Flemingovo nám. 2, 166 10 Prague 6, Czech Republic
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