European Society of Clinical Microbiology and Infectious Diseases (ESCMID)

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European Society of Clinical Microbiology and Infectious Diseases (ESCMID)

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Publications

Polyenes in Medium Chain Length Polyhydroxyalkanoate (mcl-PHA) Biopolymer Microspheres with Reduced Toxicity and Improved Therapeutic Effect against Candida Infection in Zebrafish Model

Pavić, Aleksandar; Stojanović, Zoran; Pekmezović, Marina; Veljović, Đorđe; O'Connor, Kevin; Malagurski, Ivana; Nikodinović-Runić, Jasmina

(MDPI, Basel, 2022)

TY  - JOUR
AU  - Pavić, Aleksandar
AU  - Stojanović, Zoran
AU  - Pekmezović, Marina
AU  - Veljović, Đorđe
AU  - O'Connor, Kevin
AU  - Malagurski, Ivana
AU  - Nikodinović-Runić, Jasmina
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1554
AB  - Immobilizing antifungal polyenes such as nystatin (Nys) and amphotericin B (AmB) into biodegradable formulations is advantageous compared to free drug administration providing sustained release, reduced dosing due to localized targeting and overall reduced systemic drug toxicity. In this study, we encapsulated Nys and AmB in medium chain length polyhydroxyalkanoates (mcl-PHA) microspheres (7-8 mu m in diameter). The obtained formulations have been validated for antifungal activity in vitro against a panel of pathogenic fungi including species of Candida, Aspergillus, Microsporum and Trichophyton genera and toxicity and efficacy in vivo using the zebrafish model of disseminated candidiasis. While free polyenes, especially AmB, were highly toxic to zebrafish embryos at the effective (MIC) doses, after their loading into mcl-PHA microspheres, inner organ toxicity and teratogenicity associated with both drugs were not observed, even at 100 x MIC doses. The obtained mcl-PHA/polyene formulations have successfully eradicated C. albicans infection and showed an improved therapeutic profile in zebrafish by enhancing infected embryos survival. This approach is contributing to the antifungal arsenal as polyenes, although the first broad-spectrum antifungals on the market are still the gold standard for treatment of fungal infections.
PB  - MDPI, Basel
T2  - Pharmaceutics
T1  - Polyenes in Medium Chain Length Polyhydroxyalkanoate (mcl-PHA) Biopolymer Microspheres with Reduced Toxicity and Improved Therapeutic Effect against Candida Infection in Zebrafish Model
IS  - 4
VL  - 14
DO  - 10.3390/pharmaceutics14040696
ER  - 
@article{
author = "Pavić, Aleksandar and Stojanović, Zoran and Pekmezović, Marina and Veljović, Đorđe and O'Connor, Kevin and Malagurski, Ivana and Nikodinović-Runić, Jasmina",
year = "2022",
abstract = "Immobilizing antifungal polyenes such as nystatin (Nys) and amphotericin B (AmB) into biodegradable formulations is advantageous compared to free drug administration providing sustained release, reduced dosing due to localized targeting and overall reduced systemic drug toxicity. In this study, we encapsulated Nys and AmB in medium chain length polyhydroxyalkanoates (mcl-PHA) microspheres (7-8 mu m in diameter). The obtained formulations have been validated for antifungal activity in vitro against a panel of pathogenic fungi including species of Candida, Aspergillus, Microsporum and Trichophyton genera and toxicity and efficacy in vivo using the zebrafish model of disseminated candidiasis. While free polyenes, especially AmB, were highly toxic to zebrafish embryos at the effective (MIC) doses, after their loading into mcl-PHA microspheres, inner organ toxicity and teratogenicity associated with both drugs were not observed, even at 100 x MIC doses. The obtained mcl-PHA/polyene formulations have successfully eradicated C. albicans infection and showed an improved therapeutic profile in zebrafish by enhancing infected embryos survival. This approach is contributing to the antifungal arsenal as polyenes, although the first broad-spectrum antifungals on the market are still the gold standard for treatment of fungal infections.",
publisher = "MDPI, Basel",
journal = "Pharmaceutics",
title = "Polyenes in Medium Chain Length Polyhydroxyalkanoate (mcl-PHA) Biopolymer Microspheres with Reduced Toxicity and Improved Therapeutic Effect against Candida Infection in Zebrafish Model",
number = "4",
volume = "14",
doi = "10.3390/pharmaceutics14040696"
}
Pavić, A., Stojanović, Z., Pekmezović, M., Veljović, Đ., O'Connor, K., Malagurski, I.,& Nikodinović-Runić, J.. (2022). Polyenes in Medium Chain Length Polyhydroxyalkanoate (mcl-PHA) Biopolymer Microspheres with Reduced Toxicity and Improved Therapeutic Effect against Candida Infection in Zebrafish Model. in Pharmaceutics
MDPI, Basel., 14(4).
https://doi.org/10.3390/pharmaceutics14040696
Pavić A, Stojanović Z, Pekmezović M, Veljović Đ, O'Connor K, Malagurski I, Nikodinović-Runić J. Polyenes in Medium Chain Length Polyhydroxyalkanoate (mcl-PHA) Biopolymer Microspheres with Reduced Toxicity and Improved Therapeutic Effect against Candida Infection in Zebrafish Model. in Pharmaceutics. 2022;14(4).
doi:10.3390/pharmaceutics14040696 .
Pavić, Aleksandar, Stojanović, Zoran, Pekmezović, Marina, Veljović, Đorđe, O'Connor, Kevin, Malagurski, Ivana, Nikodinović-Runić, Jasmina, "Polyenes in Medium Chain Length Polyhydroxyalkanoate (mcl-PHA) Biopolymer Microspheres with Reduced Toxicity and Improved Therapeutic Effect against Candida Infection in Zebrafish Model" in Pharmaceutics, 14, no. 4 (2022),
https://doi.org/10.3390/pharmaceutics14040696 . .
7
6

Polyhydroxyalkanoate/Antifungal Polyene Formulations with Monomeric Hydroxyalkanoic Acids for Improved Antifungal Efficiency

Pekmezović, Marina; Krusić, Melina Kalagasidis; Malagurski, Ivana; Milovanović, Jelena; Stepien, Karolina; Guzik, Maciej; Charifou, Romina; Babu, Ramesh; O'Connor, Kevin; Nikodinović-Runić, Jasmina

(MDPI, Basel, 2021)

TY  - JOUR
AU  - Pekmezović, Marina
AU  - Krusić, Melina Kalagasidis
AU  - Malagurski, Ivana
AU  - Milovanović, Jelena
AU  - Stepien, Karolina
AU  - Guzik, Maciej
AU  - Charifou, Romina
AU  - Babu, Ramesh
AU  - O'Connor, Kevin
AU  - Nikodinović-Runić, Jasmina
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1440
AB  - Novel biodegradable and biocompatible formulations of "old" but "gold" drugs such as nystatin (Nys) and amphotericin B (AmB) were made using a biopolymer as a matrix. Medium chain length polyhydroxyalkanoates (mcl-PHA) were used to formulate both polyenes (Nys and AmB) in the form of films (similar to 50 mu m). Thermal properties and stability of the materials were not significantly altered by the incorporation of polyenes in mcl-PHA, but polyene containing materials were more hydrophobic. These formulations were tested in vitro against a panel of pathogenic fungi and for antibiofilm properties. The films containing 0.1 to 2 weight % polyenes showed good activity and sustained polyene release for up to 4 days. A PHA monomer, namely 3-hydroxydecanoic acid (C10-OH), was added to the films to achieve an enhanced synergistic effect with polyenes against fungal growth. Mcl-PHA based polyene formulations showed excellent growth inhibitory activity against both Candida yeasts (C. albicans ATCC 1023, C. albicans SC5314 (ATCC MYA-2876), C. parapsilosis ATCC 22019) and filamentous fungi (Aspergillus fumigatus ATCC 13073; Trichophyton mentagrophytes ATCC 9533, Microsporum gypseum ATCC 24102). All antifungal PHA film preparations prevented the formation of a C. albicans biofilm, while they were not efficient in eradication of mature biofilms, rendering them suitable for the transdermal application or as coatings of implants.
PB  - MDPI, Basel
T2  - Antibiotics-Basel
T1  - Polyhydroxyalkanoate/Antifungal Polyene Formulations with Monomeric Hydroxyalkanoic Acids for Improved Antifungal Efficiency
IS  - 6
VL  - 10
DO  - 10.3390/antibiotics10060737
ER  - 
@article{
author = "Pekmezović, Marina and Krusić, Melina Kalagasidis and Malagurski, Ivana and Milovanović, Jelena and Stepien, Karolina and Guzik, Maciej and Charifou, Romina and Babu, Ramesh and O'Connor, Kevin and Nikodinović-Runić, Jasmina",
year = "2021",
abstract = "Novel biodegradable and biocompatible formulations of "old" but "gold" drugs such as nystatin (Nys) and amphotericin B (AmB) were made using a biopolymer as a matrix. Medium chain length polyhydroxyalkanoates (mcl-PHA) were used to formulate both polyenes (Nys and AmB) in the form of films (similar to 50 mu m). Thermal properties and stability of the materials were not significantly altered by the incorporation of polyenes in mcl-PHA, but polyene containing materials were more hydrophobic. These formulations were tested in vitro against a panel of pathogenic fungi and for antibiofilm properties. The films containing 0.1 to 2 weight % polyenes showed good activity and sustained polyene release for up to 4 days. A PHA monomer, namely 3-hydroxydecanoic acid (C10-OH), was added to the films to achieve an enhanced synergistic effect with polyenes against fungal growth. Mcl-PHA based polyene formulations showed excellent growth inhibitory activity against both Candida yeasts (C. albicans ATCC 1023, C. albicans SC5314 (ATCC MYA-2876), C. parapsilosis ATCC 22019) and filamentous fungi (Aspergillus fumigatus ATCC 13073; Trichophyton mentagrophytes ATCC 9533, Microsporum gypseum ATCC 24102). All antifungal PHA film preparations prevented the formation of a C. albicans biofilm, while they were not efficient in eradication of mature biofilms, rendering them suitable for the transdermal application or as coatings of implants.",
publisher = "MDPI, Basel",
journal = "Antibiotics-Basel",
title = "Polyhydroxyalkanoate/Antifungal Polyene Formulations with Monomeric Hydroxyalkanoic Acids for Improved Antifungal Efficiency",
number = "6",
volume = "10",
doi = "10.3390/antibiotics10060737"
}
Pekmezović, M., Krusić, M. K., Malagurski, I., Milovanović, J., Stepien, K., Guzik, M., Charifou, R., Babu, R., O'Connor, K.,& Nikodinović-Runić, J.. (2021). Polyhydroxyalkanoate/Antifungal Polyene Formulations with Monomeric Hydroxyalkanoic Acids for Improved Antifungal Efficiency. in Antibiotics-Basel
MDPI, Basel., 10(6).
https://doi.org/10.3390/antibiotics10060737
Pekmezović M, Krusić MK, Malagurski I, Milovanović J, Stepien K, Guzik M, Charifou R, Babu R, O'Connor K, Nikodinović-Runić J. Polyhydroxyalkanoate/Antifungal Polyene Formulations with Monomeric Hydroxyalkanoic Acids for Improved Antifungal Efficiency. in Antibiotics-Basel. 2021;10(6).
doi:10.3390/antibiotics10060737 .
Pekmezović, Marina, Krusić, Melina Kalagasidis, Malagurski, Ivana, Milovanović, Jelena, Stepien, Karolina, Guzik, Maciej, Charifou, Romina, Babu, Ramesh, O'Connor, Kevin, Nikodinović-Runić, Jasmina, "Polyhydroxyalkanoate/Antifungal Polyene Formulations with Monomeric Hydroxyalkanoic Acids for Improved Antifungal Efficiency" in Antibiotics-Basel, 10, no. 6 (2021),
https://doi.org/10.3390/antibiotics10060737 . .
12
12

Bis-guanylhydrazones as efficient anti-Candida compounds through DNA interaction

Lazić, Jelena; Ajdačić, Vladimir; Vojnović, Sandra; Zlatović, Mario; Pekmezović, Marina; Mogavero, Selene; Opsenica, Igor; Nikodinović-Runić, Jasmina

(Springer, New York, 2018)

TY  - JOUR
AU  - Lazić, Jelena
AU  - Ajdačić, Vladimir
AU  - Vojnović, Sandra
AU  - Zlatović, Mario
AU  - Pekmezović, Marina
AU  - Mogavero, Selene
AU  - Opsenica, Igor
AU  - Nikodinović-Runić, Jasmina
PY  - 2018
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1195
AB  - Candida spp. are leading causes of opportunistic mycoses, including life-threatening hospital-borne infections, and novel antifungals, preferably aiming targets that have not been used before, are constantly needed. Hydrazone-and guanidinecontaining molecules have shown a wide range of biological activities, including recently described excellent antifungal properties. In this study, four bis-guanylhydrazone derivatives (BG1-4) were generated following a previously developed synthetic route. Anti-Candida (two C. albicans, C. glabrata, and C. parapsilosis) minimal inhibitory concentrations (MICs) of bisguanylhydrazones were between 2 and 15.6 mu g/mL. They were also effective against preformed 48-h-old C. albicans biofilms. In vitroDNA interaction, circular dichroism, and molecular docking analysis showed the great ability of these compounds to bind fungal DNA. Competition with DNA-binding stain, exposure of phosphatidylserine at the outer layer of the cytoplasmic membrane, and activation of metacaspases were shown for BG3. This pro-apoptotic effect of BG3 was only partially due to the accumulation of reactive oxygen species in C. albicans, as only twofold MIC and higher concentrations of BG3 caused depolarization of mitochondrial membrane which was accompanied by the decrease of the activity of fungal mitochondrial dehydrogenases, while the activity of oxidative stress response enzymes glutathione reductase and catalase was not significantly affected. BG3 showed synergistic activity with amphotericin B with a fractional inhibitory concentration index of 0.5. It also exerted low cytotoxicity and the ability to inhibit epithelial cell (TR146) invasion and damage by virulent C. albicans SC5314. With further developments, BG3 may further progress in the antifungal pipeline as a DNA-targeting agent.
PB  - Springer, New York
T2  - Applied Microbiology and Biotechnology
T1  - Bis-guanylhydrazones as efficient anti-Candida compounds through DNA interaction
EP  - 1901
IS  - 4
SP  - 1889
VL  - 102
DO  - 10.1007/s00253-018-8749-3
ER  - 
@article{
author = "Lazić, Jelena and Ajdačić, Vladimir and Vojnović, Sandra and Zlatović, Mario and Pekmezović, Marina and Mogavero, Selene and Opsenica, Igor and Nikodinović-Runić, Jasmina",
year = "2018",
abstract = "Candida spp. are leading causes of opportunistic mycoses, including life-threatening hospital-borne infections, and novel antifungals, preferably aiming targets that have not been used before, are constantly needed. Hydrazone-and guanidinecontaining molecules have shown a wide range of biological activities, including recently described excellent antifungal properties. In this study, four bis-guanylhydrazone derivatives (BG1-4) were generated following a previously developed synthetic route. Anti-Candida (two C. albicans, C. glabrata, and C. parapsilosis) minimal inhibitory concentrations (MICs) of bisguanylhydrazones were between 2 and 15.6 mu g/mL. They were also effective against preformed 48-h-old C. albicans biofilms. In vitroDNA interaction, circular dichroism, and molecular docking analysis showed the great ability of these compounds to bind fungal DNA. Competition with DNA-binding stain, exposure of phosphatidylserine at the outer layer of the cytoplasmic membrane, and activation of metacaspases were shown for BG3. This pro-apoptotic effect of BG3 was only partially due to the accumulation of reactive oxygen species in C. albicans, as only twofold MIC and higher concentrations of BG3 caused depolarization of mitochondrial membrane which was accompanied by the decrease of the activity of fungal mitochondrial dehydrogenases, while the activity of oxidative stress response enzymes glutathione reductase and catalase was not significantly affected. BG3 showed synergistic activity with amphotericin B with a fractional inhibitory concentration index of 0.5. It also exerted low cytotoxicity and the ability to inhibit epithelial cell (TR146) invasion and damage by virulent C. albicans SC5314. With further developments, BG3 may further progress in the antifungal pipeline as a DNA-targeting agent.",
publisher = "Springer, New York",
journal = "Applied Microbiology and Biotechnology",
title = "Bis-guanylhydrazones as efficient anti-Candida compounds through DNA interaction",
pages = "1901-1889",
number = "4",
volume = "102",
doi = "10.1007/s00253-018-8749-3"
}
Lazić, J., Ajdačić, V., Vojnović, S., Zlatović, M., Pekmezović, M., Mogavero, S., Opsenica, I.,& Nikodinović-Runić, J.. (2018). Bis-guanylhydrazones as efficient anti-Candida compounds through DNA interaction. in Applied Microbiology and Biotechnology
Springer, New York., 102(4), 1889-1901.
https://doi.org/10.1007/s00253-018-8749-3
Lazić J, Ajdačić V, Vojnović S, Zlatović M, Pekmezović M, Mogavero S, Opsenica I, Nikodinović-Runić J. Bis-guanylhydrazones as efficient anti-Candida compounds through DNA interaction. in Applied Microbiology and Biotechnology. 2018;102(4):1889-1901.
doi:10.1007/s00253-018-8749-3 .
Lazić, Jelena, Ajdačić, Vladimir, Vojnović, Sandra, Zlatović, Mario, Pekmezović, Marina, Mogavero, Selene, Opsenica, Igor, Nikodinović-Runić, Jasmina, "Bis-guanylhydrazones as efficient anti-Candida compounds through DNA interaction" in Applied Microbiology and Biotechnology, 102, no. 4 (2018):1889-1901,
https://doi.org/10.1007/s00253-018-8749-3 . .
1
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Supplementary data for article: Aleksić, I.; Šegan, S.; Andrić, F.; Zlatović, M.; Moric, I.; Opsenica, D. M.; Senerovic, L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia Marcescens and Pseudomonas Aeruginosa. ACS Chemical Biology 2017, 12 (5), 1425–1434. https://doi.org/10.1021/acschembio.6b01149

Aleksić, Ivana; Šegan, Sandra B.; Andrić, Filip; Zlatović, Mario; Morić, Ivana; Opsenica, Dejan M.; Šenerović, Lidija

(Amer Chemical Soc, Washington, 2017)

TY  - DATA
AU  - Aleksić, Ivana
AU  - Šegan, Sandra B.
AU  - Andrić, Filip
AU  - Zlatović, Mario
AU  - Morić, Ivana
AU  - Opsenica, Dejan M.
AU  - Šenerović, Lidija
PY  - 2017
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2227
PB  - Amer Chemical Soc, Washington
T2  - ACS Chemical Biology
T1  - Supplementary data for article: Aleksić, I.; Šegan, S.; Andrić, F.; Zlatović, M.; Moric, I.; Opsenica, D. M.; Senerovic, L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia Marcescens and Pseudomonas Aeruginosa. ACS Chemical Biology 2017, 12 (5), 1425–1434. https://doi.org/10.1021/acschembio.6b01149
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2227
ER  - 
@misc{
author = "Aleksić, Ivana and Šegan, Sandra B. and Andrić, Filip and Zlatović, Mario and Morić, Ivana and Opsenica, Dejan M. and Šenerović, Lidija",
year = "2017",
publisher = "Amer Chemical Soc, Washington",
journal = "ACS Chemical Biology",
title = "Supplementary data for article: Aleksić, I.; Šegan, S.; Andrić, F.; Zlatović, M.; Moric, I.; Opsenica, D. M.; Senerovic, L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia Marcescens and Pseudomonas Aeruginosa. ACS Chemical Biology 2017, 12 (5), 1425–1434. https://doi.org/10.1021/acschembio.6b01149",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2227"
}
Aleksić, I., Šegan, S. B., Andrić, F., Zlatović, M., Morić, I., Opsenica, D. M.,& Šenerović, L.. (2017). Supplementary data for article: Aleksić, I.; Šegan, S.; Andrić, F.; Zlatović, M.; Moric, I.; Opsenica, D. M.; Senerovic, L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia Marcescens and Pseudomonas Aeruginosa. ACS Chemical Biology 2017, 12 (5), 1425–1434. https://doi.org/10.1021/acschembio.6b01149. in ACS Chemical Biology
Amer Chemical Soc, Washington..
https://hdl.handle.net/21.15107/rcub_imagine_2227
Aleksić I, Šegan SB, Andrić F, Zlatović M, Morić I, Opsenica DM, Šenerović L. Supplementary data for article: Aleksić, I.; Šegan, S.; Andrić, F.; Zlatović, M.; Moric, I.; Opsenica, D. M.; Senerovic, L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia Marcescens and Pseudomonas Aeruginosa. ACS Chemical Biology 2017, 12 (5), 1425–1434. https://doi.org/10.1021/acschembio.6b01149. in ACS Chemical Biology. 2017;.
https://hdl.handle.net/21.15107/rcub_imagine_2227 .
Aleksić, Ivana, Šegan, Sandra B., Andrić, Filip, Zlatović, Mario, Morić, Ivana, Opsenica, Dejan M., Šenerović, Lidija, "Supplementary data for article: Aleksić, I.; Šegan, S.; Andrić, F.; Zlatović, M.; Moric, I.; Opsenica, D. M.; Senerovic, L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia Marcescens and Pseudomonas Aeruginosa. ACS Chemical Biology 2017, 12 (5), 1425–1434. https://doi.org/10.1021/acschembio.6b01149" in ACS Chemical Biology (2017),
https://hdl.handle.net/21.15107/rcub_imagine_2227 .

Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa

Aleksić, Ivana; Šegan, Sandra B.; Andrić, Filip; Zlatović, Mario; Morić, Ivana; Opsenica, Dejan M.; Šenerović, Lidija

(Amer Chemical Soc, Washington, 2017)

TY  - JOUR
AU  - Aleksić, Ivana
AU  - Šegan, Sandra B.
AU  - Andrić, Filip
AU  - Zlatović, Mario
AU  - Morić, Ivana
AU  - Opsenica, Dejan M.
AU  - Šenerović, Lidija
PY  - 2017
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2226
AB  - Antibiotic resistance has become a serious global threat to public health; therefore, improved strategies and structurally novel antimicrobials are urgently needed to combat infectious diseases. Here we report a new type of highly potent 4-aminoquinoline derivatives as quorum sensing inhibitors in Serratia marcescens and Pseudomonas aeruginosa, exhibiting weak bactericidal activities (minimum inhibitory concentration (MIC)  gt  400 mu M). Through detailed structure-activity study, we have identified 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines (5 and 10) as biofilm formation inhibitors with 50% biofilm inhibition at 69 mu M and 63 mu M in S. marcescens and P. aeruginosa, respectively. These two compounds, 5 and 10, are the first quinoline derivatives with anti-biofilm formation activity reported in S. marcescens. Quantitative structure-activity relationship (QSAR) analysis identified structural descriptors such as Wiener indices, hyper-distance-path index (HDPI), mean topological charge (MTC), topological charge index (TCI), and log D(o/w)exp as the most influential in biofilm inhibition in this bacterial species. Derivative 10 is one of the most potent quinoline type inhibitors of pyocyanin production described so far (IC50 = 2.5 mu M). While we have demonstrated that 5 and 10 act as Pseudomonas quinolone system (PQS) antagonists, the mechanism of inhibition of S. marcescens biofilm formation with these compounds remains open since signaling similar to P. aeruginosa PQS system has not yet been described in Serratia and activity of these compounds on acylhomoserine lactone (AHL) signaling has not been detected. Our data show that 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines present the promising scaffolds for developing antivirulence and anti-biofilm formation agents against multidrug-resistant bacterial species.
PB  - Amer Chemical Soc, Washington
T2  - ACS Chemical Biology
T1  - Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa
EP  - 1434
IS  - 5
SP  - 1425
VL  - 12
DO  - 10.1021/acschembio.6b01149
ER  - 
@article{
author = "Aleksić, Ivana and Šegan, Sandra B. and Andrić, Filip and Zlatović, Mario and Morić, Ivana and Opsenica, Dejan M. and Šenerović, Lidija",
year = "2017",
abstract = "Antibiotic resistance has become a serious global threat to public health; therefore, improved strategies and structurally novel antimicrobials are urgently needed to combat infectious diseases. Here we report a new type of highly potent 4-aminoquinoline derivatives as quorum sensing inhibitors in Serratia marcescens and Pseudomonas aeruginosa, exhibiting weak bactericidal activities (minimum inhibitory concentration (MIC)  gt  400 mu M). Through detailed structure-activity study, we have identified 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines (5 and 10) as biofilm formation inhibitors with 50% biofilm inhibition at 69 mu M and 63 mu M in S. marcescens and P. aeruginosa, respectively. These two compounds, 5 and 10, are the first quinoline derivatives with anti-biofilm formation activity reported in S. marcescens. Quantitative structure-activity relationship (QSAR) analysis identified structural descriptors such as Wiener indices, hyper-distance-path index (HDPI), mean topological charge (MTC), topological charge index (TCI), and log D(o/w)exp as the most influential in biofilm inhibition in this bacterial species. Derivative 10 is one of the most potent quinoline type inhibitors of pyocyanin production described so far (IC50 = 2.5 mu M). While we have demonstrated that 5 and 10 act as Pseudomonas quinolone system (PQS) antagonists, the mechanism of inhibition of S. marcescens biofilm formation with these compounds remains open since signaling similar to P. aeruginosa PQS system has not yet been described in Serratia and activity of these compounds on acylhomoserine lactone (AHL) signaling has not been detected. Our data show that 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines present the promising scaffolds for developing antivirulence and anti-biofilm formation agents against multidrug-resistant bacterial species.",
publisher = "Amer Chemical Soc, Washington",
journal = "ACS Chemical Biology",
title = "Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa",
pages = "1434-1425",
number = "5",
volume = "12",
doi = "10.1021/acschembio.6b01149"
}
Aleksić, I., Šegan, S. B., Andrić, F., Zlatović, M., Morić, I., Opsenica, D. M.,& Šenerović, L.. (2017). Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa. in ACS Chemical Biology
Amer Chemical Soc, Washington., 12(5), 1425-1434.
https://doi.org/10.1021/acschembio.6b01149
Aleksić I, Šegan SB, Andrić F, Zlatović M, Morić I, Opsenica DM, Šenerović L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa. in ACS Chemical Biology. 2017;12(5):1425-1434.
doi:10.1021/acschembio.6b01149 .
Aleksić, Ivana, Šegan, Sandra B., Andrić, Filip, Zlatović, Mario, Morić, Ivana, Opsenica, Dejan M., Šenerović, Lidija, "Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa" in ACS Chemical Biology, 12, no. 5 (2017):1425-1434,
https://doi.org/10.1021/acschembio.6b01149 . .
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45

Anti-biofilm Properties of Bacterial Di-Rhamnolipids and Their Semi-Synthetic Amide Derivatives

Aleksić, Ivana; Petković, Milos; Jovanović, Milos; Milivojević, Dušan; Vasiljević, Branka; Nikodinović-Runić, Jasmina; Šenerović, Lidija

(Frontiers Media Sa, Lausanne, 2017)

TY  - JOUR
AU  - Aleksić, Ivana
AU  - Petković, Milos
AU  - Jovanović, Milos
AU  - Milivojević, Dušan
AU  - Vasiljević, Branka
AU  - Nikodinović-Runić, Jasmina
AU  - Šenerović, Lidija
PY  - 2017
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1033
AB  - A new strain, namely Lysinibacillus sp. BV152.1 was isolated from the rhizosphere of ground ivy (Glechoma hederacea L.) producing metabolites with potent ability to inhibit biofilm formation of an important human pathogens Pseudomonas aeruginosa PAO1, Staphylococcus aureus, and Serratia marcescens. Structural characterization revealed di-rhamnolipids mixture containing rhamnose (Rha)-Rha-C10-C10, Rha-Rha-C8-C10, and Rha-Rha-C10-C12 in the ratio 7: 2: 1 as the active principle. Purified di-rhamnolipids, as well as commercially available di-rhamnolipids (Rha-Rha-C10-C10, 93%) were used as the substrate for the chemical derivatization for the first time, yielding three semisynthetic amide derivatives, benzyl-, piperidine-, and morpholine. A comparative study of the anti-biofilm, antibacterial and cytotoxic properties revealed that di-Rha from Lysinibacillus sp. BV152.1 were more potent in biofilm inhibition, both cell adhesion and biofilm maturation, than commercial di-rhamnolipids inhibiting 50% of P. aeruginosa PAO1 biofilm formation at 50 mu g mL(-1) and 75 mu g mL(-1), respectively. None of the dirhamnolipids exhibited antimicrobial properties at concentrations of up to 500 mu g mL(-1). Amide derivatization improved inhibition of biofilm formation and dispersion activities of di-rhamnolipids from both sources, with morpholine derivative being the most active causing more than 80% biofilm inhibition at concentrations 100 mu g mL(-1). Semisynthetic amide derivatives showed increased antibacterial activity against S. aureus, and also showed higher cytotoxicity. Therefore, described di-rhamnolipids are potent anti-biofilm agents and the described approach can be seen as viable approach in reaching new rhamnolipid based derivatives with tailored biological properties.
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Microbiology
T1  - Anti-biofilm Properties of Bacterial Di-Rhamnolipids and Their Semi-Synthetic Amide Derivatives
VL  - 8
DO  - 10.3389/fmicb.2017.02454
ER  - 
@article{
author = "Aleksić, Ivana and Petković, Milos and Jovanović, Milos and Milivojević, Dušan and Vasiljević, Branka and Nikodinović-Runić, Jasmina and Šenerović, Lidija",
year = "2017",
abstract = "A new strain, namely Lysinibacillus sp. BV152.1 was isolated from the rhizosphere of ground ivy (Glechoma hederacea L.) producing metabolites with potent ability to inhibit biofilm formation of an important human pathogens Pseudomonas aeruginosa PAO1, Staphylococcus aureus, and Serratia marcescens. Structural characterization revealed di-rhamnolipids mixture containing rhamnose (Rha)-Rha-C10-C10, Rha-Rha-C8-C10, and Rha-Rha-C10-C12 in the ratio 7: 2: 1 as the active principle. Purified di-rhamnolipids, as well as commercially available di-rhamnolipids (Rha-Rha-C10-C10, 93%) were used as the substrate for the chemical derivatization for the first time, yielding three semisynthetic amide derivatives, benzyl-, piperidine-, and morpholine. A comparative study of the anti-biofilm, antibacterial and cytotoxic properties revealed that di-Rha from Lysinibacillus sp. BV152.1 were more potent in biofilm inhibition, both cell adhesion and biofilm maturation, than commercial di-rhamnolipids inhibiting 50% of P. aeruginosa PAO1 biofilm formation at 50 mu g mL(-1) and 75 mu g mL(-1), respectively. None of the dirhamnolipids exhibited antimicrobial properties at concentrations of up to 500 mu g mL(-1). Amide derivatization improved inhibition of biofilm formation and dispersion activities of di-rhamnolipids from both sources, with morpholine derivative being the most active causing more than 80% biofilm inhibition at concentrations 100 mu g mL(-1). Semisynthetic amide derivatives showed increased antibacterial activity against S. aureus, and also showed higher cytotoxicity. Therefore, described di-rhamnolipids are potent anti-biofilm agents and the described approach can be seen as viable approach in reaching new rhamnolipid based derivatives with tailored biological properties.",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Microbiology",
title = "Anti-biofilm Properties of Bacterial Di-Rhamnolipids and Their Semi-Synthetic Amide Derivatives",
volume = "8",
doi = "10.3389/fmicb.2017.02454"
}
Aleksić, I., Petković, M., Jovanović, M., Milivojević, D., Vasiljević, B., Nikodinović-Runić, J.,& Šenerović, L.. (2017). Anti-biofilm Properties of Bacterial Di-Rhamnolipids and Their Semi-Synthetic Amide Derivatives. in Frontiers in Microbiology
Frontiers Media Sa, Lausanne., 8.
https://doi.org/10.3389/fmicb.2017.02454
Aleksić I, Petković M, Jovanović M, Milivojević D, Vasiljević B, Nikodinović-Runić J, Šenerović L. Anti-biofilm Properties of Bacterial Di-Rhamnolipids and Their Semi-Synthetic Amide Derivatives. in Frontiers in Microbiology. 2017;8.
doi:10.3389/fmicb.2017.02454 .
Aleksić, Ivana, Petković, Milos, Jovanović, Milos, Milivojević, Dušan, Vasiljević, Branka, Nikodinović-Runić, Jasmina, Šenerović, Lidija, "Anti-biofilm Properties of Bacterial Di-Rhamnolipids and Their Semi-Synthetic Amide Derivatives" in Frontiers in Microbiology, 8 (2017),
https://doi.org/10.3389/fmicb.2017.02454 . .
2
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69

Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa

Aleksić, Ivana; Segan, Sandra; Andrić, Filip; Zlatović, Mario; Morić, Ivana; Opsenica, Dejan M.; Šenerović, Lidija

(Amer Chemical Soc, Washington, 2017)

TY  - JOUR
AU  - Aleksić, Ivana
AU  - Segan, Sandra
AU  - Andrić, Filip
AU  - Zlatović, Mario
AU  - Morić, Ivana
AU  - Opsenica, Dejan M.
AU  - Šenerović, Lidija
PY  - 2017
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1092
AB  - Antibiotic resistance has become a serious global threat to public health; therefore, improved strategies and structurally novel antimicrobials are urgently needed to combat infectious diseases. Here we report a new type of highly potent 4-aminoquinoline derivatives as quorum sensing inhibitors in Serratia marcescens and Pseudomonas aeruginosa, exhibiting weak bactericidal activities (minimum inhibitory concentration (MIC)  gt  400 mu M). Through detailed structure-activity study, we have identified 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines (5 and 10) as biofilm formation inhibitors with 50% biofilm inhibition at 69 mu M and 63 mu M in S. marcescens and P. aeruginosa, respectively. These two compounds, 5 and 10, are the first quinoline derivatives with anti-biofilm formation activity reported in S. marcescens. Quantitative structure-activity relationship (QSAR) analysis identified structural descriptors such as Wiener indices, hyper-distance-path index (HDPI), mean topological charge (MTC), topological charge index (TCI), and log D(o/w)exp as the most influential in biofilm inhibition in this bacterial species. Derivative 10 is one of the most potent quinoline type inhibitors of pyocyanin production described so far (IC50 = 2.5 mu M). While we have demonstrated that 5 and 10 act as Pseudomonas quinolone system (PQS) antagonists, the mechanism of inhibition of S. marcescens biofilm formation with these compounds remains open since signaling similar to P. aeruginosa PQS system has not yet been described in Serratia and activity of these compounds on acylhomoserine lactone (AHL) signaling has not been detected. Our data show that 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines present the promising scaffolds for developing antivirulence and anti-biofilm formation agents against multidrug-resistant bacterial species.
PB  - Amer Chemical Soc, Washington
T2  - Acs Chemical Biology
T1  - Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa
EP  - 1434
IS  - 5
SP  - 1425
VL  - 12
DO  - 10.1021/acschembio.6b01149
ER  - 
@article{
author = "Aleksić, Ivana and Segan, Sandra and Andrić, Filip and Zlatović, Mario and Morić, Ivana and Opsenica, Dejan M. and Šenerović, Lidija",
year = "2017",
abstract = "Antibiotic resistance has become a serious global threat to public health; therefore, improved strategies and structurally novel antimicrobials are urgently needed to combat infectious diseases. Here we report a new type of highly potent 4-aminoquinoline derivatives as quorum sensing inhibitors in Serratia marcescens and Pseudomonas aeruginosa, exhibiting weak bactericidal activities (minimum inhibitory concentration (MIC)  gt  400 mu M). Through detailed structure-activity study, we have identified 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines (5 and 10) as biofilm formation inhibitors with 50% biofilm inhibition at 69 mu M and 63 mu M in S. marcescens and P. aeruginosa, respectively. These two compounds, 5 and 10, are the first quinoline derivatives with anti-biofilm formation activity reported in S. marcescens. Quantitative structure-activity relationship (QSAR) analysis identified structural descriptors such as Wiener indices, hyper-distance-path index (HDPI), mean topological charge (MTC), topological charge index (TCI), and log D(o/w)exp as the most influential in biofilm inhibition in this bacterial species. Derivative 10 is one of the most potent quinoline type inhibitors of pyocyanin production described so far (IC50 = 2.5 mu M). While we have demonstrated that 5 and 10 act as Pseudomonas quinolone system (PQS) antagonists, the mechanism of inhibition of S. marcescens biofilm formation with these compounds remains open since signaling similar to P. aeruginosa PQS system has not yet been described in Serratia and activity of these compounds on acylhomoserine lactone (AHL) signaling has not been detected. Our data show that 7-Cl and 7-CF3 substituted N-dodecylamino-4-aminoquinolines present the promising scaffolds for developing antivirulence and anti-biofilm formation agents against multidrug-resistant bacterial species.",
publisher = "Amer Chemical Soc, Washington",
journal = "Acs Chemical Biology",
title = "Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa",
pages = "1434-1425",
number = "5",
volume = "12",
doi = "10.1021/acschembio.6b01149"
}
Aleksić, I., Segan, S., Andrić, F., Zlatović, M., Morić, I., Opsenica, D. M.,& Šenerović, L.. (2017). Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa. in Acs Chemical Biology
Amer Chemical Soc, Washington., 12(5), 1425-1434.
https://doi.org/10.1021/acschembio.6b01149
Aleksić I, Segan S, Andrić F, Zlatović M, Morić I, Opsenica DM, Šenerović L. Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa. in Acs Chemical Biology. 2017;12(5):1425-1434.
doi:10.1021/acschembio.6b01149 .
Aleksić, Ivana, Segan, Sandra, Andrić, Filip, Zlatović, Mario, Morić, Ivana, Opsenica, Dejan M., Šenerović, Lidija, "Long-Chain 4-Aminoquinolines as Quorum Sensing Inhibitors in Serratia marcescens and Pseudomonas aeruginosa" in Acs Chemical Biology, 12, no. 5 (2017):1425-1434,
https://doi.org/10.1021/acschembio.6b01149 . .
9
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Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates

Ajdačić, Vladimir; Šenerović, Lidija; Vranić, Marija; Pekmezović, Marina; Arsić-Arsenijević, Valentina; Veselinović, Aleksandar; Veselinović, Jovana; Solaja, Bogdan A.; Nikodinović-Runić, Jasmina; Opsenica, Igor M.

(Pergamon-Elsevier Science Ltd, Oxford, 2016)

TY  - JOUR
AU  - Ajdačić, Vladimir
AU  - Šenerović, Lidija
AU  - Vranić, Marija
AU  - Pekmezović, Marina
AU  - Arsić-Arsenijević, Valentina
AU  - Veselinović, Aleksandar
AU  - Veselinović, Jovana
AU  - Solaja, Bogdan A.
AU  - Nikodinović-Runić, Jasmina
AU  - Opsenica, Igor M.
PY  - 2016
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/991
AB  - A series of new thiophene-based guanylhydrazones (iminoguanidines) were synthesized in high yields using a straightforward two-step procedure. The antifungal activity of compounds was evaluated against a wide range of medicaly important fungal strains including yeasts, molds, and dermatophytes in comparison to clinically used drug voriconazole. Cytotoxic properties of compounds were also determined using human lung fibroblast cell line and hemolysis assay. All guanylhydrazones showed significant activity against broad spectrum of clinically important species of Candida spp., Aspergillus fumigatus, Fusarium oxysporum, Microsporum canis and Trichophyton mentagrophytes, which was in some cases comparable or better than activity of voriconazole. More importantly, compounds 10, 11, 13, 14, 18 and 21 exhibited excellent activity against voriconazole-resistant Candida albicans CA5 with very low minimal inhibitory concentration (MIC) values  lt 2 mu g mL(-1). Derivative 14, bearing bromine on the phenyl ring, was the most effective compound with MICs ranging from 0.25 to 6.25 g mL(-1). However, bis-guanylhydrazone 18 showed better selectivity in terms of therapeutic index values. In vivo embryotoxicity on zebrafish (Danio rerio) showed improved toxicity profile of 11, 14 and 18 in comparison to that of voriconazole. Most guanylhydrazones also inhibited C albicans yeast to hyphal transition, essential for its biofilm formation, while 11 and 18 were able to disperse preformed Candida biofilms. All guanylhydrazones showed the equal potential to interact with genomic DNA of C albicans in vitro, thus indicating a possible mechanism of their action, as well as possible mechanism of observed cytotoxic effects. Tested compounds did not have significant hemolytic effect and caused low liposome leakage, which excluded the cell membrane as a primary target. On the basis of computational docking experiments using both human and cytochrome P450 from Candida it was concluded that the most active guanylhydrazones had minimal structural prerequisites to interact with the cytochrome P450 14a-demethylase (CYP51). Promising guanylhydrazone derivatives also showed satisfactory pharmacokinetic profile based on molecular calculations.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Bioorganic & Medicinal Chemistry
T1  - Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates
EP  - 1291
IS  - 6
SP  - 1277
VL  - 24
DO  - 10.1016/j.bmc.2016.01.058
ER  - 
@article{
author = "Ajdačić, Vladimir and Šenerović, Lidija and Vranić, Marija and Pekmezović, Marina and Arsić-Arsenijević, Valentina and Veselinović, Aleksandar and Veselinović, Jovana and Solaja, Bogdan A. and Nikodinović-Runić, Jasmina and Opsenica, Igor M.",
year = "2016",
abstract = "A series of new thiophene-based guanylhydrazones (iminoguanidines) were synthesized in high yields using a straightforward two-step procedure. The antifungal activity of compounds was evaluated against a wide range of medicaly important fungal strains including yeasts, molds, and dermatophytes in comparison to clinically used drug voriconazole. Cytotoxic properties of compounds were also determined using human lung fibroblast cell line and hemolysis assay. All guanylhydrazones showed significant activity against broad spectrum of clinically important species of Candida spp., Aspergillus fumigatus, Fusarium oxysporum, Microsporum canis and Trichophyton mentagrophytes, which was in some cases comparable or better than activity of voriconazole. More importantly, compounds 10, 11, 13, 14, 18 and 21 exhibited excellent activity against voriconazole-resistant Candida albicans CA5 with very low minimal inhibitory concentration (MIC) values  lt 2 mu g mL(-1). Derivative 14, bearing bromine on the phenyl ring, was the most effective compound with MICs ranging from 0.25 to 6.25 g mL(-1). However, bis-guanylhydrazone 18 showed better selectivity in terms of therapeutic index values. In vivo embryotoxicity on zebrafish (Danio rerio) showed improved toxicity profile of 11, 14 and 18 in comparison to that of voriconazole. Most guanylhydrazones also inhibited C albicans yeast to hyphal transition, essential for its biofilm formation, while 11 and 18 were able to disperse preformed Candida biofilms. All guanylhydrazones showed the equal potential to interact with genomic DNA of C albicans in vitro, thus indicating a possible mechanism of their action, as well as possible mechanism of observed cytotoxic effects. Tested compounds did not have significant hemolytic effect and caused low liposome leakage, which excluded the cell membrane as a primary target. On the basis of computational docking experiments using both human and cytochrome P450 from Candida it was concluded that the most active guanylhydrazones had minimal structural prerequisites to interact with the cytochrome P450 14a-demethylase (CYP51). Promising guanylhydrazone derivatives also showed satisfactory pharmacokinetic profile based on molecular calculations.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Bioorganic & Medicinal Chemistry",
title = "Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates",
pages = "1291-1277",
number = "6",
volume = "24",
doi = "10.1016/j.bmc.2016.01.058"
}
Ajdačić, V., Šenerović, L., Vranić, M., Pekmezović, M., Arsić-Arsenijević, V., Veselinović, A., Veselinović, J., Solaja, B. A., Nikodinović-Runić, J.,& Opsenica, I. M.. (2016). Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates. in Bioorganic & Medicinal Chemistry
Pergamon-Elsevier Science Ltd, Oxford., 24(6), 1277-1291.
https://doi.org/10.1016/j.bmc.2016.01.058
Ajdačić V, Šenerović L, Vranić M, Pekmezović M, Arsić-Arsenijević V, Veselinović A, Veselinović J, Solaja BA, Nikodinović-Runić J, Opsenica IM. Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates. in Bioorganic & Medicinal Chemistry. 2016;24(6):1277-1291.
doi:10.1016/j.bmc.2016.01.058 .
Ajdačić, Vladimir, Šenerović, Lidija, Vranić, Marija, Pekmezović, Marina, Arsić-Arsenijević, Valentina, Veselinović, Aleksandar, Veselinović, Jovana, Solaja, Bogdan A., Nikodinović-Runić, Jasmina, Opsenica, Igor M., "Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates" in Bioorganic & Medicinal Chemistry, 24, no. 6 (2016):1277-1291,
https://doi.org/10.1016/j.bmc.2016.01.058 . .
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Prevention of polymicrobial biofilms composed of Pseudomonas aeruginosa and pathogenic fungi by essential oils from selected Citrus species

Pekmezović, Marina; Aleksić, Ivana; Barac, Aleksandra; Arsić-Arsenijević, Valentina; Vasiljević, Branka; Nikodinović-Runić, Jasmina; Šenerović, Lidija

(Oxford Univ Press, Oxford, 2016)

TY  - JOUR
AU  - Pekmezović, Marina
AU  - Aleksić, Ivana
AU  - Barac, Aleksandra
AU  - Arsić-Arsenijević, Valentina
AU  - Vasiljević, Branka
AU  - Nikodinović-Runić, Jasmina
AU  - Šenerović, Lidija
PY  - 2016
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/953
AB  - Mixed microbial infections caused by Pseudomonas aeruginosa and pathogenic fungi are commonly found in patients with chronic infections and constitute a significant health care burden. The aim of this study was to address the potential polymicrobial antibiofilm activity of pompia and grapefruit essential oils (EOs). The mechanism of antimicrobial activity of EOs was analysed. EOs of pompia and grapefruit inhibited fungal growth with MIC concentrations between 50 and 250 mg L-1, whereas no effect on P. aeruginosa growth was observed. Both citrus EOs inhibited formation of bacterial and fungal monomicrobial biofilms in concentrations of 50 mg L-1 and were efficient in potentiating the activity of clinically used antimicrobials in vitro. The concentration of 10 mg L-1 EOs inhibited mixed biofilm formation composed of P. aeruginosa and Aspergillus fumigatus or Scedosporium apiospermum. Citrus EOs affected quorum sensing in P. aeruginosa and caused fast permeabilisation of Candida albicans membrane. Pompia and grapefruit EOs potently inhibited biofilm formation and could be used for the control of common polymicrobial infections.
PB  - Oxford Univ Press, Oxford
T2  - Pathogens and Disease
T1  - Prevention of polymicrobial biofilms composed of Pseudomonas aeruginosa and pathogenic fungi by essential oils from selected Citrus species
IS  - 8
VL  - 74
DO  - 10.1093/femspd/ftw102
ER  - 
@article{
author = "Pekmezović, Marina and Aleksić, Ivana and Barac, Aleksandra and Arsić-Arsenijević, Valentina and Vasiljević, Branka and Nikodinović-Runić, Jasmina and Šenerović, Lidija",
year = "2016",
abstract = "Mixed microbial infections caused by Pseudomonas aeruginosa and pathogenic fungi are commonly found in patients with chronic infections and constitute a significant health care burden. The aim of this study was to address the potential polymicrobial antibiofilm activity of pompia and grapefruit essential oils (EOs). The mechanism of antimicrobial activity of EOs was analysed. EOs of pompia and grapefruit inhibited fungal growth with MIC concentrations between 50 and 250 mg L-1, whereas no effect on P. aeruginosa growth was observed. Both citrus EOs inhibited formation of bacterial and fungal monomicrobial biofilms in concentrations of 50 mg L-1 and were efficient in potentiating the activity of clinically used antimicrobials in vitro. The concentration of 10 mg L-1 EOs inhibited mixed biofilm formation composed of P. aeruginosa and Aspergillus fumigatus or Scedosporium apiospermum. Citrus EOs affected quorum sensing in P. aeruginosa and caused fast permeabilisation of Candida albicans membrane. Pompia and grapefruit EOs potently inhibited biofilm formation and could be used for the control of common polymicrobial infections.",
publisher = "Oxford Univ Press, Oxford",
journal = "Pathogens and Disease",
title = "Prevention of polymicrobial biofilms composed of Pseudomonas aeruginosa and pathogenic fungi by essential oils from selected Citrus species",
number = "8",
volume = "74",
doi = "10.1093/femspd/ftw102"
}
Pekmezović, M., Aleksić, I., Barac, A., Arsić-Arsenijević, V., Vasiljević, B., Nikodinović-Runić, J.,& Šenerović, L.. (2016). Prevention of polymicrobial biofilms composed of Pseudomonas aeruginosa and pathogenic fungi by essential oils from selected Citrus species. in Pathogens and Disease
Oxford Univ Press, Oxford., 74(8).
https://doi.org/10.1093/femspd/ftw102
Pekmezović M, Aleksić I, Barac A, Arsić-Arsenijević V, Vasiljević B, Nikodinović-Runić J, Šenerović L. Prevention of polymicrobial biofilms composed of Pseudomonas aeruginosa and pathogenic fungi by essential oils from selected Citrus species. in Pathogens and Disease. 2016;74(8).
doi:10.1093/femspd/ftw102 .
Pekmezović, Marina, Aleksić, Ivana, Barac, Aleksandra, Arsić-Arsenijević, Valentina, Vasiljević, Branka, Nikodinović-Runić, Jasmina, Šenerović, Lidija, "Prevention of polymicrobial biofilms composed of Pseudomonas aeruginosa and pathogenic fungi by essential oils from selected Citrus species" in Pathogens and Disease, 74, no. 8 (2016),
https://doi.org/10.1093/femspd/ftw102 . .
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