1
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Du C, Woolcott S, Wahba AS, Hamry SR, Odette WL, Thibodeaux CJ, Marchand P, Mauzeroll J. Evaluation of Quatsome Morphology, Composition, and Stability for Pseudomonas aeruginosa Biofilm Eradication. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:1623-1632. [PMID: 38194503 DOI: 10.1021/acs.langmuir.3c02491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Biofilm infections are a major cause of food poisoning and hospital-acquired infections. Quaternary ammonium compounds are a group of effective disinfectants widely used in industry and households, yet their efficacy is lessened when used as antibiofilm agents compared to that against planktonic bacteria. It is therefore necessary to identify alternative formulations of quaternary ammonium compounds to achieve an effective biofilm dispersal. Quaternary ammonium amphiphiles can form vesicular structures termed "quatsomes" in the presence of cholesterol. In addition to their intrinsic antimicrobial properties, quatsomes can also be used for the delivery of other types of antibiotics or biomarkers. In this study, quatsomes were prepared from binary mixtures of cholesterol and mono- or dialkyl-quaternary ammonium compounds; then, the integrity and stability of their vesicular structure were assessed and related to monomer chain number and chain length. The quatsomes were used to treat Pseudomonas aeruginosa biofilms, showing effective antibiofilm abilities comparable to those of their monomers. A systematic liquid chromatography-mass spectrometry method for quantifying quatsome vesicle components was also developed and used to establish the significance of cholesterol in the quatsome self-assembly processes.
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Affiliation(s)
- Changyue Du
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | - Sascha Woolcott
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | | | - Sally R Hamry
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | - William L Odette
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | | | - Patrick Marchand
- Sani-Marc Group, 42 Rue De L'Artisan, Victoriaville, Quebec G6P 7E3, Canada
| | - Janine Mauzeroll
- Department of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
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2
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Hwang J, Huang H, Sullivan MO, Kiick KL. Controlled Delivery of Vancomycin from Collagen-tethered Peptide Vehicles for the Treatment of Wound Infections. Mol Pharm 2023; 20:1696-1708. [PMID: 36707500 PMCID: PMC10197141 DOI: 10.1021/acs.molpharmaceut.2c00898] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Despite the great promise of antibiotic therapy in wound infections, antibiotic resistance stemming from frequent dosing diminishes drug efficacy and contributes to recurrent infection. To identify improvements in antibiotic therapies, new antibiotic delivery systems that maximize pharmacological activity and minimize side effects are needed. In this study, we developed elastin-like peptide and collagen-like peptide nanovesicles (ECnVs) tethered to collagen-containing matrices to control vancomycin delivery and provide extended antibacterial effects against methicillin-resistant Staphylococcus aureus (MRSA). We observed that ECnVs showed enhanced entrapment efficacy of vancomycin by 3-fold as compared to liposome formulations. Additionally, ECnVs enabled the controlled release of vancomycin at a constant rate with zero-order kinetics, whereas liposomes exhibited first-order release kinetics. Moreover, ECnVs could be retained on both collagen-fibrin (co-gel) matrices and collagen-only matrices, with differential retention on the two biomaterials resulting in different local concentrations of released vancomycin. Overall, the biphasic release profiles of vancomycin from ECnVs/co-gel and ECnVs/collagen more effectively inhibited the growth of MRSA for 18 and 24 h, respectively, even after repeated bacterial inoculation, as compared to matrices containing free vancomycin, which just delayed the growth of MRSA. Thus, this newly developed antibiotic delivery system exhibited distinct advantages for controlled vancomycin delivery and prolonged antibacterial activity relevant to the treatment of wound infections.
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Affiliation(s)
- Jeongmin Hwang
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19713, USA
| | - Haofu Huang
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Millicent O. Sullivan
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19713, USA
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Kristi L. Kiick
- Department of Biomedical Engineering, University of Delaware, Newark, DE, 19713, USA
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA
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3
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Hemmingsen LM, Giordani B, Paulsen MH, Vanić Ž, Flaten GE, Vitali B, Basnet P, Bayer A, Strøm MB, Škalko-Basnet N. Tailored anti-biofilm activity - Liposomal delivery for mimic of small antimicrobial peptide. BIOMATERIALS ADVANCES 2023; 145:213238. [PMID: 36527962 DOI: 10.1016/j.bioadv.2022.213238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/18/2022] [Accepted: 12/06/2022] [Indexed: 12/14/2022]
Abstract
The eradication of bacteria embedded in biofilms is among the most challenging obstacles in the management of chronic wounds. These biofilms are found in most chronic wounds; moreover, the biofilm-embedded bacteria are considerably less susceptible to conventional antimicrobial treatment than the planktonic bacteria. Antimicrobial peptides and their mimics are considered attractive candidates in the pursuit of novel therapeutic options for the treatment of chronic wounds and general bacterial eradication. However, some limitations linked to these membrane-active antimicrobials are making their clinical use challenging. Novel innovative delivery systems addressing these limitations represent a smart solution. We hypothesized that incorporation of a novel synthetic mimic of an antimicrobial peptide in liposomes could improve its anti-biofilm effect as well as the anti-inflammatory activity. The small synthetic mimic of an antimicrobial peptide, 7e-SMAMP, was incorporated into liposomes (~280 nm) tailored for skin wounds and evaluated for its potential activity against both biofilm formation and eradication of pre-formed biofilms. The 7e-SMAMP-liposomes significantly lowered inflammatory response in murine macrophages (~30 % reduction) without affecting the viability of macrophages or keratinocytes. Importantly, the 7e-SMAMP-liposomes completely eradicated biofilms produced by Staphylococcus aureus and Escherichia coli above concentrations of 6.25 μg/mL, whereas in Pseudomonas aeruginosa the eradication reached 75 % at the same concentration. Incorporation of 7e-SMAMP in liposomes improved both the inhibition of biofilm formation as well as biofilm eradication in vitro, as compared to non-formulated antimicrobial, therefore confirming its potential as a novel therapeutic option for bacteria-infected chronic wounds.
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Affiliation(s)
- Lisa Myrseth Hemmingsen
- Drug Transport and Delivery Research Group, Department of Pharmacy, University of Tromsø The Arctic University of Norway, Universitetsvegen 57, N-9037 Tromsø, Norway
| | - Barbara Giordani
- Beneficial Microbes Research Group, Department of Pharmacy and Biotechnology, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | - Marianne H Paulsen
- Department of Chemistry, University of Tromsø The Arctic University of Norway, Universitetsvegen 57, N-9037 Tromsø, Norway; Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy, University of Tromsø The Arctic University of Norway, Universitetsvegen 57, N-9037 Tromsø, Norway
| | - Željka Vanić
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10 000 Zagreb, Croatia
| | - Gøril Eide Flaten
- Drug Transport and Delivery Research Group, Department of Pharmacy, University of Tromsø The Arctic University of Norway, Universitetsvegen 57, N-9037 Tromsø, Norway
| | - Beatrice Vitali
- Beneficial Microbes Research Group, Department of Pharmacy and Biotechnology, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | - Purusotam Basnet
- Women's Health and Perinatology Research Group, Department of Clinical Medicine, University of Tromsø The Arctic University of Norway, Universitetsveien 57, N-9037 Tromsø, Norway
| | - Annette Bayer
- Department of Chemistry, University of Tromsø The Arctic University of Norway, Universitetsvegen 57, N-9037 Tromsø, Norway
| | - Morten B Strøm
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy, University of Tromsø The Arctic University of Norway, Universitetsvegen 57, N-9037 Tromsø, Norway
| | - Nataša Škalko-Basnet
- Drug Transport and Delivery Research Group, Department of Pharmacy, University of Tromsø The Arctic University of Norway, Universitetsvegen 57, N-9037 Tromsø, Norway.
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4
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Aleksandrova YI, Shurpik DN, Nazmutdinova VA, Mostovaya OA, Subakaeva EV, Sokolova EA, Zelenikhin PV, Stoikov II. Toward Pathogenic Biofilm Suppressors: Synthesis of Amino Derivatives of Pillar[5]arene and Supramolecular Assembly with DNA. Pharmaceutics 2023; 15:pharmaceutics15020476. [PMID: 36839796 PMCID: PMC9966598 DOI: 10.3390/pharmaceutics15020476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/28/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
New amino derivatives of pillar[5]arene were obtained in three stages with good yields. It was shown that pillar[5]arene containing thiaether and tertiary amino groups formed supramolecular complexes with low molecular weight model DNA. Pillar[5]arene formed complexes with a DNA nucleotide pair at a ratio of 1:2 (macrocycle/DNA base pairs), as demonstrated by UV-visible and fluorescence spectroscopy. The association constants of pillar[5]arene with DNA were lgKass1:1 = 2.38 and lgKass1:2 = 5.07, accordingly. By using dynamic light scattering and transmission electron microscopy, it was established that the interaction of pillar[5]arene containing thiaether and tertiary amino groups (concentration of 10-5 M) with a model nucleic acid led to the formation of stable nanosized macrocycle/DNA associates with an average particle size of 220 nm. It was shown that the obtained compounds did not exhibit a pronounced toxicity toward human adenocarcinoma cells (A549) and bovine lung epithelial cells (LECs). The hypothesis about a possible usage of the synthesized macrocycle for the aggregation of extracellular bacterial DNA in a biofilm matrix was confirmed by the example of St. Aureus. It was found that pillar[5]arene at a concentration of 10-5 M was able to reduce the thickness of the St. Aureus biofilm by 15%.
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Affiliation(s)
- Yulia I. Aleksandrova
- A.M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya, 18, 420008 Kazan, Russia
| | - Dmitriy N. Shurpik
- A.M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya, 18, 420008 Kazan, Russia
- Correspondence: (D.N.S.); (I.I.S.); Tel.: +7-843-233-7241 (I.I.S.)
| | | | - Olga A. Mostovaya
- A.M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya, 18, 420008 Kazan, Russia
| | - Evgenia V. Subakaeva
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya, 18, 420008 Kazan, Russia
| | - Evgenia A. Sokolova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya, 18, 420008 Kazan, Russia
| | - Pavel V. Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya, 18, 420008 Kazan, Russia
| | - Ivan I. Stoikov
- A.M. Butlerov Chemistry Institute, Kazan Federal University, Kremlevskaya, 18, 420008 Kazan, Russia
- Correspondence: (D.N.S.); (I.I.S.); Tel.: +7-843-233-7241 (I.I.S.)
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5
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Liposome-Encapsulated Tobramycin and IDR-1018 Peptide Mediated Biofilm Disruption and Enhanced Antimicrobial Activity against Pseudomonas aeruginosa. Pharmaceutics 2022; 14:pharmaceutics14050960. [PMID: 35631547 PMCID: PMC9144307 DOI: 10.3390/pharmaceutics14050960] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 11/17/2022] Open
Abstract
The inadequate eradication of pulmonary infections and chronic inflammation are significant complications in cystic fibrosis (CF) patients, who usually suffer from persistent and frequent lung infections caused by several pathogens, particularly Pseudomonas aeruginosa (P. aeruginosa). The ability of pathogenic microbes to protect themselves from biofilms leads to the development of an innate immune response and antibiotic resistance. In the present work, a reference bacterial strain of P. aeruginosa (PA01) and a multidrug-resistant isolate (MDR 7067) were used to explore the microbial susceptibility to three antibiotics (ceftazidime, imipenem, and tobramycin) and an anti-biofilm peptide (IDR-1018 peptide) using the minimum inhibition concentration (MIC). The most effective antibiotic was then encapsulated into liposomal nanoparticles and the IDR-1018 peptide with antibacterial activity, and the ability to disrupt the produced biofilm against PA01 and MDR 7067 was assessed. The MIC evaluation of the tobramycin antibacterial activity showed an insignificant effect on the liposomes loaded with tobramycin and liposomes encapsulating tobramycin and IDR-1018 against both P. aeruginosa strains to free tobramycin. Nevertheless, the biofilm formation was significantly reduced (p < 0.05) at concentrations of ≥4 μg/mL and ≤32 μg/mL for PA01 and ≤32 μg/mL for MDR 7067 when loading tobramycin into liposomes, with or without the anti-biofilm peptide compared to the free antibiotic, empty liposomes, and IDR-1018-loaded liposomes. A tobramycin concentration of ≤256 µg/mL was safe when exposed to a lung carcinoma cell line upon its encapsulation into the liposomal formulation. Tobramycin-loaded liposomes could be a potential candidate for treating lung-infected animal models owing to the high therapeutic efficacy and safety profile of this system compared to the free administration of the antibiotic.
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6
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Pagano L, Gkartziou F, Aiello S, Simonis B, Ceccacci F, Sennato S, Ciogli A, Mourtas S, Spiliopoulou I, Antimisiaris SG, Bombelli C, Mancini G. Resveratrol loaded in cationic glucosylated liposomes to treat Staphylococcus epidermidis infections. Chem Phys Lipids 2022; 243:105174. [DOI: 10.1016/j.chemphyslip.2022.105174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/17/2021] [Accepted: 01/11/2022] [Indexed: 11/28/2022]
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7
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Gerayelou G, Khameneh B, Malaekeh-Nikouei B, Mahmoudi A, Fazly Bazzaz BS. Dual Antibiotic and Diffusible Signal Factor Combination Nanoliposomes for Combating Staphylococcus epidermidis Biofilm. Adv Pharm Bull 2021; 11:684-692. [PMID: 34888215 PMCID: PMC8642808 DOI: 10.34172/apb.2021.077] [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: 05/27/2020] [Revised: 09/18/2020] [Accepted: 10/14/2020] [Indexed: 11/17/2022] Open
Abstract
Purpose: Microbial biofilms are one of the main causes of persistent human infections. Encapsulation of an antibiotic and a biofilm dispersal agent within a nano-carrier has been recognized as a novel approach to combat the problem of biofilm-related infections. Here, we develop the nanoliposomal formulation for delivery of vancomycin in combination with cis-2- decenoic acid (C2DA), to Staphylococcus epidermidis biofilm. The effects of the formulations were studied at two stages: biofilm growth inhabitation and biofilm eradication. Methods: Liposomal formulations were prepared by the solvent evaporation dehydration-rehydration method and were evaluated for size, zeta potential, and encapsulation efficacy. The ability of different agents in free and encapsulated forms were assessed to evaluate the anti-biofilm activities. Results: Vancomycin and C2DA were successfully co-encapsulated in the same nanoliposome (liposomal combination). The zeta potential values of the liposomal formulations of vancomycin, C2DA, and the liposomal combination were 37.2, 40.2, 51.5 mV, and the mean sizes of these liposomal formulations were 167.8±1.5, 215.5±8.8, 235.5±0.01, respectively. Encapsulation efficacy of C2DA was 65% and about 40% for vancomycin. The results indicated that liposomal combination exerted strong anti-biofilm activities, slightly exceeding those observed by the free form of a combination of vancomycin and C2DA, but higher than either agent used alone in their free forms. The anti-biofilm activity of formulations followed concentration and time-dependent manner. Conclusion: The combination of vancomycin and C2DA could inhibit biofilm formation. Employing the liposomal combination is a considerable method to remove bacterial biofilm.
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Affiliation(s)
- Golara Gerayelou
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bahman Khameneh
- Department of Pharmaceutical Control, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bizhan Malaekeh-Nikouei
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Asma Mahmoudi
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bibi Sedigheh Fazly Bazzaz
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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8
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Ding L, Wang J, Cai S, Smyth H, Cui Z. Pulmonary biofilm-based chronic infections and inhaled treatment strategies. Int J Pharm 2021; 604:120768. [PMID: 34089796 DOI: 10.1016/j.ijpharm.2021.120768] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/20/2021] [Accepted: 05/31/2021] [Indexed: 12/12/2022]
Abstract
Certain pulmonary diseases, such as cystic fibrosis (CF), non-CF bronchiectasis, chronic obstructive pulmonary disease, and ventilator-associated pneumonia, are usually accompanied by respiratory tract infections due to the physiological alteration of the lung immunological defenses. Recurrent infections may lead to chronic infection through the formation of biofilms. Chronic biofilm-based infections are challenging to treat using antimicrobial agents. Therefore, effective ways to eradicate biofilms and thus relieve respiratory tract infection require the development of efficacious agents for biofilm destruction, the design of delivery carriers with biofilm-targeting and/or penetrating abilities for these agents, and the direct delivery of them into the lung. This review provides an in-depth description of biofilm-based infections caused by pulmonary diseases and focuses on current existing agents that are administered by inhalation into the lung to treat biofilm, which include i) inhalable antimicrobial agents and their combinations, ii) non-antimicrobial adjuvants such as matrix-targeting enzymes, mannitol, glutathione, cyclosporin A, and iii) liposomal formulations of anti-biofilm agents. Finally, novel agents that have shown promise against pulmonary biofilms as well as traditional and new devices for pulmonary delivery of anti-biofilm agents into the lung are also discussed.
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Affiliation(s)
- Li Ding
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Jieliang Wang
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Shihao Cai
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
| | - Hugh Smyth
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Zhengrong Cui
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA.
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9
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Huang Z, Kłodzińska SN, Wan F, Nielsen HM. Nanoparticle-mediated pulmonary drug delivery: state of the art towards efficient treatment of recalcitrant respiratory tract bacterial infections. Drug Deliv Transl Res 2021; 11:1634-1654. [PMID: 33694082 PMCID: PMC7945609 DOI: 10.1007/s13346-021-00954-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2021] [Indexed: 12/16/2022]
Abstract
Recalcitrant respiratory tract infections caused by bacteria have emerged as one of the greatest health challenges worldwide. Aerosolized antimicrobial therapy is becoming increasingly attractive to combat such infections, as it allows targeted delivery of high drug concentrations to the infected organ while limiting systemic exposure. However, successful aerosolized antimicrobial therapy is still challenged by the diverse biological barriers in infected lungs. Nanoparticle-mediated pulmonary drug delivery is gaining increasing attention as a means to overcome the biological barriers and accomplish site-specific drug delivery by controlling release of the loaded drug(s) at the target site. With the aim to summarize emerging efforts in combating respiratory tract infections by using nanoparticle-mediated pulmonary delivery strategies, this review provides a brief introduction to the bacterial infection-related pulmonary diseases and the biological barriers for effective treatment of recalcitrant respiratory tract infections. This is followed by a summary of recent advances in design of inhalable nanoparticle-based drug delivery systems that overcome the biological barriers and increase drug bioavailability. Finally, challenges for the translation from exploratory laboratory research to clinical application are also discussed and potential solutions proposed.
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Affiliation(s)
- Zheng Huang
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen Ø, Denmark
| | - Sylvia Natalie Kłodzińska
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen Ø, Denmark
| | - Feng Wan
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen Ø, Denmark.
| | - Hanne Mørck Nielsen
- Center for Biopharmaceuticals and Biobarriers in Drug Delivery, Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100, Copenhagen Ø, Denmark.
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10
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Hedayati Ch M, Abolhassani Targhi A, Shamsi F, Heidari F, Salehi Moghadam Z, Mirzaie A, Behdad R, Moghtaderi M, Akbarzadeh I. Niosome-encapsulated tobramycin reduced antibiotic resistance and enhanced antibacterial activity against multidrug-resistant clinical strains of Pseudomonas aeruginosa. J Biomed Mater Res A 2020; 109:966-980. [PMID: 32865883 DOI: 10.1002/jbm.a.37086] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 08/02/2020] [Accepted: 08/08/2020] [Indexed: 12/18/2022]
Abstract
In the current study, niosome-encapsulated tobramycin based on Span 60 and Tween 60 was synthesized and its biological efficacies including anti-bacterial, anti-efflux, and anti-biofilm activities were investigated against multidrug resistant (MDR) clinical strains of Pseudomonas aeruginosa. The niosomal formulations were characterized using scanning electron microscopy, transmission electron microscopy, and dynamic light scattering measurement. The encapsulation efficiency was found to be 69.54% ±; 0.67. The prepared niosomal formulations had a high storage stability to 60 days with small changes in size and drug entrapment, which indicates that it is a suitable candidate for pharmaceutical applications. The results of biological study showed the anti-bacterial activity via reduction of antibiotic resistance, enhanced anti-efflux and anti-biofilm activities by more folds in comparison to free tobramycin. In addition, niosome encapsulated tobramycin down-regulated the MexAB-OprM efflux genes, pslA and pelA biofilm related genes in MDR P. aeruginosa strains. The anti-proliferative activity of formulation was evaluated against HEK293 cell lines, which exhibited negligible cytotoxicity against HEK293 cells. The finding of our study shows that encapsulation of tobramycin in niosome enhanced the antibacterial activity and reduced antibiotic resistance in MDR strains of P. aeruginosa comparing to free tobramycin and it can be considered as a favorable drug delivery system.
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Affiliation(s)
- Mojtaba Hedayati Ch
- Department of Microbiology, Guilan University of Medical Sciences, Rasht, Iran
| | | | - Farzaneh Shamsi
- Department of Biology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
| | - Fatemeh Heidari
- Department of Cellular and Molecular Biology, Islamic Azad University, Tehran Medical Branch, Tehran, Iran
| | | | - Amir Mirzaie
- Department of Biology, Roudehen Branch, Islamic Azad University, Roudehen, Iran
| | - Reyhaneh Behdad
- Department of Biology, Varamin-Pishva Branch, Islamic Azad University, Varamin, Iran
| | - Maryam Moghtaderi
- Department of Chemical Engineering, University of Tehran, Tehran, Iran
| | - Iman Akbarzadeh
- Department of Chemical and Petrochemical Engineering, Sharif University of Technology, Tehran, Iran
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11
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Xu C, Akakuru OU, Ma X, Zheng J, Zheng J, Wu A. Nanoparticle-Based Wound Dressing: Recent Progress in the Detection and Therapy of Bacterial Infections. Bioconjug Chem 2020; 31:1708-1723. [PMID: 32538089 DOI: 10.1021/acs.bioconjchem.0c00297] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bacterial infections in wounds often delay the healing process, and may seriously threaten human life. It is urgent to develop wound dressings to effectively detect and treat bacterial infections. Nanoparticles have been extensively used in wound dressings because of their specific properties. This review highlights the recent progress on nanoparticle-based wound dressings for bacterial detection and therapy. Specifically, nanoparticles have been applied as intrinsic antibacterial agents or drug delivery vehicles to treat bacteria in wounds. Moreover, nanoparticles with photothermal or photodynamic property have also been explored to endow wound dressings with significant optical properties to further enhance their bactericidal effect. More interestingly, nanoparticle-based smart dressings have been recently explored for bacteria detection and treatment, which enables an accurate assessment of bacterial infection and a more precise control of on-demand therapy.
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Affiliation(s)
- Chen Xu
- Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, the People's Republic of China.,Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, the People's Republic of China.,Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo 315000, the People's Republic of China
| | - Ozioma Udochukwu Akakuru
- Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, the People's Republic of China
| | - Xuehua Ma
- Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, the People's Republic of China
| | - Jianping Zheng
- Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, the People's Republic of China
| | - Jianjun Zheng
- Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, the People's Republic of China
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices & Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, the People's Republic of China
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12
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Abstract
When antibiotics are administered, orally or intravenously, they pass through different organs and layers of tissue on their way to the site of infection; this can cause dilution and/or intoxication. To overcome these problems, drug delivery vehicles have been used to encapsulate and deliver antibiotics, improving their therapeutic index while minimizing their adverse effects. Liposomes are self-assembled lipid vesicles made from at least one bilayer of phospholipids with an inner aqueous compartment. Liposomes are attractive vehicles to deliver antibiotics because they can encapsulate both hydrophobic and hydrophilic antibiotics, they have low toxicity, and they can change the biodistribution of the drug. Furthermore, liposomes have been approved by regulatory agencies. However, most developmental and mechanistic research in the field has been focused on encapsulation and delivery of anticancer drugs, a class of molecules that differ significantly in chemistry from antibiotics. In this critical Review, we discuss the state of knowledge regarding the design of liposomes for encapsulation and delivery of antibiotics and offer insight into the challenges and promises of using liposomes for antibiotic delivery.
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Affiliation(s)
- Azucena Gonzalez Gomez
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario L9S 8L7, Canada
| | - Zeinab Hosseinidoust
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario L9S 8L7, Canada
- Michael DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario L98 4LS, Canada
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Thapa RK, Kiick KL, Sullivan MO. Encapsulation of collagen mimetic peptide-tethered vancomycin liposomes in collagen-based scaffolds for infection control in wounds. Acta Biomater 2020; 103:115-128. [PMID: 31843720 PMCID: PMC7044801 DOI: 10.1016/j.actbio.2019.12.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/26/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022]
Abstract
Wound infections are a significant clinical problem affecting millions of people worldwide. Topically applied antibacterial formulations with longer residence time and controlled antimicrobial release would offer significant benefits for improved prevention and treatment of infected wounds. In this study, we developed collagen mimetic peptide (CMP) tethered vancomycin (Van)-containing liposomes (Lipo) (CMP-Van-Lipo) hybridized to collagen-based hydrogels ('co-gels,' e.g., collagen/fibrin combination hydrogels) for the treatment of methicillin-resistant Staphylococcus aureus (MRSA) infections in vitro and in vivo. Tethering CMP-Van-Lipo nanostructures to co-gels enabled sustained Van release and enhanced in vitro antibacterial effects against MRSA as compared to Van loaded co-gels or Van-Lipo loaded co-gels following multiple fresh bacterial inoculations over a period of 48 h. These results were successfully translated in vivo wherein MRSA infected wounds were effectively treated with CMP-Van-Lipo loaded co-gels for up to 9 days, whereas the activity of Van loaded co-gels and Van-Lipo loaded co-gels were limited to <2 days. Moreover, CMP-Van-Lipo retained in vivo antibacterial activity even after re-inoculation with bacteria; however, Van loaded co-gels and Van-Lipo loaded co-gels allowed significant bacterial growth demonstrating their limited efficacy. Altogether, these results provide proof-of-concept that CMP-Van-Lipo loaded co-gels can be effective topical formulations for preventive treatment of MRSA wound infections. STATEMENT OF SIGNIFICANCE: Current topical antimicrobial formulations (e.g., creams, gels, and ointments) do not control release, leaving antimicrobial concentrations either too high or too low at different time points, and provoking the development of antibacterial resistance and recurrence of wound infections. Here, collagen mimetic peptides (CMPs) were used to stably hybridize vancomycin-containing liposomal nanocarriers (CMP-Van-Lipo) within collagen-fibrin co-gels via triple-helical integration with collagen, enabling control over Van release for prolonged time periods and minimizing the adverse effects of the Lipo formulations on fibroblast cell viability in the wound bed. The CMP-Van-Lipo loaded co-gel's higher antibacterial effects in vitro were successfully translated in vivo for treatment of MRSA-infected mouse wounds, and thus the co-gels can be a potentially translatable treatment for improved clinical wound management.
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Affiliation(s)
- Raj Kumar Thapa
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716 USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716 USA.
| | - Millicent O Sullivan
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716 USA.
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Scriboni AB, Couto VM, Ribeiro LNDM, Freires IA, Groppo FC, de Paula E, Franz-Montan M, Cogo-Müller K. Fusogenic Liposomes Increase the Antimicrobial Activity of Vancomycin Against Staphylococcus aureus Biofilm. Front Pharmacol 2019; 10:1401. [PMID: 31849660 PMCID: PMC6895244 DOI: 10.3389/fphar.2019.01401] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 11/01/2019] [Indexed: 11/23/2022] Open
Abstract
Objective: The aim of the present study was to encapsulate vancomycin in different liposomal formulations and compare the in vitro antimicrobial activity against Staphylococcus aureus biofilms. Methods: Large unilamellar vesicles of conventional (LUV VAN), fusogenic (LUVfuso VAN), and cationic (LUVcat VAN) liposomes encapsulating VAN were characterized in terms of size, polydispersity index, zeta potential, morphology, encapsulation efficiency (%EE) and in vitro release kinetics. The formulations were tested for their Minimum Inhibitory Concentration (MIC) and inhibitory activity on biofilm formation and viability, using methicillin-susceptible S. aureus ATCC 29213 and methicillin-resistant S. aureus ATCC 43300 strains. Key Findings: LUV VAN showed better %EE (32.5%) and sustained release than LUVfuso VAN, LUVcat VAN, and free VAN. The formulations were stable over 180 days at 4°C, except for LUV VAN, which was stable up to 120 days. The MIC values for liposomal formulations and free VAN ranged from 0.78 to 1.56 µg/ml against both tested strains, with no difference in the inhibition of biofilm formation as compared to free VAN. However, when treating mature biofilm, encapsulated LUVfuso VAN increased the antimicrobial efficacy as compared to the other liposomal formulations and to free VAN, demonstrating a better ability to penetrate the biofilm. Conclusion: Vancomycin encapsulated in fusogenic liposomes demonstrated enhanced antimicrobial activity against mature S. aureus biofilms.
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Affiliation(s)
- Andreia Borges Scriboni
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Verônica Muniz Couto
- Department of Biochemistry and Tissue Biology, Biology Institute, University of Campinas, Campinas, Brazil
| | | | - Irlan Almeida Freires
- Department of Oral Biology, University of Florida College of Dentistry, Gainesville, FL, United States
| | - Francisco Carlos Groppo
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Eneida de Paula
- Department of Biochemistry and Tissue Biology, Biology Institute, University of Campinas, Campinas, Brazil
| | - Michelle Franz-Montan
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Karina Cogo-Müller
- Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
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Pu C, Tang W. The antibacterial and antibiofilm efficacies of a liposomal peptide originating from rice bran protein against Listeria monocytogenes. Food Funct 2018; 8:4159-4169. [PMID: 29022979 DOI: 10.1039/c7fo00994a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
With the aim of exploring a natural antilisterial peptide from food-derived origin, an antibacterial peptide named as Alpep7 was purified from the bromelain hydrolysate of rice bran protein (RBP) in this study. The resulting amino acid consequence was identified as KVDHFPL (Lys-Val-Asp-His-Phe-Pro-Leu) by ultraperformance liquid chromatography tandem matrix-assisted laser desorption/ionisation quadrupole time-of-flight mass spectrometry (MALDI Q-TOF MS). In addition, to assess the probability of the targeted delivery of liposome encapsulation of the peptide to Listeria biofilm, Alpep7-loaded liposomes were further prepared from a mixture of dipalmitoylphosphatidylcholine, stearylamine and cholesterol in a molar ratio of 10 : 3 : 2 and characterised by the analysis of particle size, zeta potential, microtopography and storage stability. The results showed that the liposomes exhibited a well-defined spherical shape, with an average diameter below 200 nm. The liposomes maintained favourable stability after storage at 4 °C for 4 weeks. Comparisons between the activities of free and liposomal Alpep7 via microbroth dilution, regrowth analysis and confocal scanning laser microscopy suggested that liposomal delivery was more effective during the initial exposure of the liposomes to the biofilms. The thermodynamic analysis indicated that the adsorption of liposomal Alpep7 to the listerial biofilm was a spontaneous, exothermic process. The results may provide a natural means for the treatment of listerial contamination and guide the potential application of liposomes for the targeted delivery of antimicrobials to pathogenic biofilms in the food industry.
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Affiliation(s)
- Chuanfen Pu
- School of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China.
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Thomsen H, Benkovics G, Fenyvesi É, Farewell A, Malanga M, Ericson MB. Delivery of cyclodextrin polymers to bacterial biofilms — An exploratory study using rhodamine labelled cyclodextrins and multiphoton microscopy. Int J Pharm 2017; 531:650-657. [DOI: 10.1016/j.ijpharm.2017.06.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/29/2017] [Accepted: 06/03/2017] [Indexed: 01/07/2023]
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Ahani E, Montazer M, Toliyat T, Mahmoudi Rad M, Harifi T. Preparation of nano cationic liposome as carrier membrane for polyhexamethylene biguanide chloride through various methods utilizing higher antibacterial activities with low cell toxicity. J Microencapsul 2017; 34:121-131. [PMID: 28609225 DOI: 10.1080/02652048.2017.1296500] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
This study suggested successful encapsulation of polyhexamethylene biguanide chloride (PHMB) into nano cationic liposome as a biocompatible antibacterial agent with less cytotoxicity and higher activities. Phosphatidylcholine, cholesterol and stearylamine were used to prepare nano cationic liposome using thin film hydration method along with sonication or homogeniser. Sonication was more effective in PHMB loaded nano cationic liposome preparation with smaller size (34 nm). FTIR, 1H NMR and XRD analyses were used to confirm the encapsulation of PHMB into nano cationic liposome. PHMB inclusion in nano cationic liposome was beneficial for increased antibacterial activity against Staphylococcus aureus and Escherichia coli. PHMB-loaded cationic liposome enables to deliver high concentrations of the antibacterial agent into the infectious cell. The cytotoxicity of PHMB entrapped in positively charged liposome was prominently reduced showing no significant visible detrimental effect on normal primary human skin fibroblast cell lines morphology confirming the effective role of cationic liposome encapsulation. Comparing with PHMB alone, encapsulation of PHMB in nano cationic liposome resulted in significant increase in cell viability from 2.4 to 63%.
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Affiliation(s)
- Elnaz Ahani
- a Science and Research Branch , Islamic Azad University , Tehran , Iran
| | - Majid Montazer
- b Department of Textile Engineering, Functional Fibrous Structures & Environmental Enhancement (FFSEE) , Amirkabir Nanotechnology Research Institute (ANTRI), Amirkabir University of Technology , Tehran , Iran
| | - Tayebeh Toliyat
- c Department of Pharmaceutics, Faculty of Pharmacy , Tehran University of Medical Sciences , Tehran , Iran
| | - Mahnaz Mahmoudi Rad
- d Skin Research Centre, Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Tina Harifi
- e Department of Textile Engineering, Functional Fibrous Structures & Environmental Enhancement (FFSEE) , Amirkabir University of Technology , Tehran , Iran
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Boccalini G, Conti L, Montis C, Bani D, Bencini A, Berti D, Giorgi C, Mengoni A, Valtancoli B. Methylene blue-containing liposomes as new photodynamic anti-bacterial agents. J Mater Chem B 2017; 5:2788-2797. [DOI: 10.1039/c6tb03367a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Novel cationic liposomes containing the photo-activatable drug methylene blue (MB) strongly enhance the antibacterial activity of MB towards Gram-negative bacteria and improve biofilm penetration.
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Affiliation(s)
- Giulia Boccalini
- Department of Experimental & Clinical Medicine
- Research Unit of Histology & Embryology
- University of Florence
- Italy
| | - Luca Conti
- Department of Chemistry Ugo Schiff
- University of Florence
- Sesto Fiorentino (FI)
- Italy
| | - Costanza Montis
- Department of Chemistry Ugo Schiff and CSGI
- University of Florence
- Sesto Fiorentino (FI)
- Italy
| | - Daniele Bani
- Department of Experimental & Clinical Medicine
- Research Unit of Histology & Embryology
- University of Florence
- Italy
| | - Andrea Bencini
- Department of Chemistry Ugo Schiff
- University of Florence
- Sesto Fiorentino (FI)
- Italy
| | - Debora Berti
- Department of Chemistry Ugo Schiff and CSGI
- University of Florence
- Sesto Fiorentino (FI)
- Italy
| | - Claudia Giorgi
- Department of Chemistry Ugo Schiff
- University of Florence
- Sesto Fiorentino (FI)
- Italy
| | - Alessio Mengoni
- Department of Biology
- University of Florence
- Sesto Fiorentino (FI)
- Italy
| | - Barbara Valtancoli
- Department of Chemistry Ugo Schiff
- University of Florence
- Sesto Fiorentino (FI)
- Italy
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Whether a novel drug delivery system can overcome the problem of biofilms in respiratory diseases? Drug Deliv Transl Res 2016; 7:179-187. [DOI: 10.1007/s13346-016-0349-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Current Trends in Development of Liposomes for Targeting Bacterial Biofilms. Pharmaceutics 2016; 8:pharmaceutics8020018. [PMID: 27231933 PMCID: PMC4932481 DOI: 10.3390/pharmaceutics8020018] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/17/2016] [Accepted: 05/18/2016] [Indexed: 12/26/2022] Open
Abstract
Biofilm targeting represents a great challenge for effective antimicrobial therapy. Increased biofilm resistance, even with the elevated concentrations of very potent antimicrobial agents, often leads to failed therapeutic outcome. Application of biocompatible nanomicrobials, particularly liposomally-associated nanomicrobials, presents a promising approach for improved drug delivery to bacterial cells and biofilms. Versatile manipulations of liposomal physicochemical properties, such as the bilayer composition, membrane fluidity, size, surface charge and coating, enable development of liposomes with desired pharmacokinetic and pharmacodynamic profiles. This review attempts to provide an unbiased overview of investigations of liposomes destined to treat bacterial biofilms. Different strategies including the recent advancements in liposomal design aiming at eradication of existing biofilms and prevention of biofilm formation, as well as respective limitations, are discussed in more details.
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Ferreira Lins R, Rogério Lustri W, Minharro S, Alonso A, de Sousa Neto D. On the formation, physicochemical properties and antibacterial activity of colloidal systems containing tea tree (Melaleuca alternifolia) oil. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.02.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Fazly Bazzaz BS, Khameneh B, Zarei H, Golmohammadzadeh S. Antibacterial efficacy of rifampin loaded solid lipid nanoparticles against Staphylococcus epidermidis biofilm. Microb Pathog 2016; 93:137-44. [DOI: 10.1016/j.micpath.2015.11.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 11/15/2022]
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Majeed H, Liu F, Hategekimana J, Sharif HR, Qi J, Ali B, Bian YY, Ma J, Yokoyama W, Zhong F. Bactericidal action mechanism of negatively charged food grade clove oil nanoemulsions. Food Chem 2016; 197:75-83. [DOI: 10.1016/j.foodchem.2015.10.015] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 08/23/2015] [Accepted: 10/05/2015] [Indexed: 10/22/2022]
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Thomas N, Dong D, Richter K, Ramezanpour M, Vreugde S, Thierry B, Wormald PJ, Prestidge CA. Quatsomes for the treatment of Staphylococcus aureus biofilm. J Mater Chem B 2015; 3:2770-2777. [PMID: 32262406 DOI: 10.1039/c4tb01953a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The anti-biofilm effect of drug delivery systems composed of the antiseptic quaternary ammonium compound cetylpyridinium chloride (CPC) and cholesterol was evaluated in Staphylococcus aureus biofilm. Self-assembly of CPC/cholesterol to approximately 100 nm CPC-quatsomes was successfully accomplished by a simple sonication/dispersion method over a broad concentration range from 0.5 to 10 mg ml-1 CPC. CPC-quatsomes showed a dose-dependent anti-biofilm effect, killing >99% of biofilm-associated S. aureus from 5% mg ml-1 after 10 minutes exposure. Cell toxicity studies with CPC-quatsomes in Nuli-1 cells revealed no adverse effects at all tested CPC concentrations. CPC-quatsomes, therefore, have a promising potential as novel drug delivery systems with "built-in" anti-biofilm activity.
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Affiliation(s)
- Nicky Thomas
- Ian Wark Research Institute, University of South Australia, Mawson Lakes Campus, Mawson Lakes, Adelaide, South Australia 5095, Australia.
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Shunmugaperumal T, Kaur V, Thenrajan RS. Lipid- and Polymer-Based Drug Delivery Carriers for Eradicating Microbial Biofilms Causing Medical Device-Related Infections. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 831:147-89. [DOI: 10.1007/978-3-319-09782-4_10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Probing the size limit for nanomedicine penetration into Burkholderia multivorans and Pseudomonas aeruginosa biofilms. J Control Release 2014; 195:21-8. [DOI: 10.1016/j.jconrel.2014.07.061] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/28/2014] [Accepted: 07/30/2014] [Indexed: 01/29/2023]
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Barakat HS, Kassem MA, El-Khordagui LK, Khalafallah NM. Vancomycin-eluting niosomes: a new approach to the inhibition of staphylococcal biofilm on abiotic surfaces. AAPS PharmSciTech 2014; 15:1263-74. [PMID: 24895077 DOI: 10.1208/s12249-014-0141-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 05/07/2014] [Indexed: 12/19/2022] Open
Abstract
A new vancomycin (VCM)-eluting mixed bilayer niosome formulation was evaluated for the control of staphylococcal colonization and biofilm formation on abiotic surfaces, a niosome application not explored to date. Cosurfactant niosomes were prepared using a Span 60/Tween 40/cholesterol blend (1: 1: 2). Tween 40, a polyethoxylated amphiphile, was included to enhance VCM entrapment and confer niosomal surface properties precluding bacterial adhesion. VCM-eluting niosomes showed good quality attributes including relatively high entrapment efficiency (∼50%), association of Tween 40 with vesicles in a constant proportion (∼87%), biphasic release profile suitable for inhibiting early bacterial colonization, and long-term stability at 4°C for a 12-month study period. Niosomes significantly enhanced VCM activity against planktonic bacteria of nine staphylococcal strains. Using microtiter plates as abiotic surface, VCM-eluting niosomes proved superior to VCM in inhibiting biofilm formation, eradicating surface-borne biofilms, inhibiting biofilm growth, and interfering with biofilm induction by VCM subminimal inhibitory concentrations. Data suggest dual functionality of cosurfactant VCM-eluting niosomes as passive colonization inhibiting barrier and active antimicrobial-controlled delivery system, two functions recognized in infection control of abiotic surfaces and medical devices.
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Forier K, Raemdonck K, De Smedt SC, Demeester J, Coenye T, Braeckmans K. Lipid and polymer nanoparticles for drug delivery to bacterial biofilms. J Control Release 2014; 190:607-23. [DOI: 10.1016/j.jconrel.2014.03.055] [Citation(s) in RCA: 255] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/13/2014] [Accepted: 03/21/2014] [Indexed: 01/13/2023]
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Jardeleza C, Rao S, Thierry B, Gajjar P, Vreugde S, Prestidge CA, Wormald PJ. Liposome-encapsulated ISMN: a novel nitric oxide-based therapeutic agent against Staphylococcus aureus biofilms. PLoS One 2014; 9:e92117. [PMID: 24658315 PMCID: PMC3962386 DOI: 10.1371/journal.pone.0092117] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 02/17/2014] [Indexed: 11/28/2022] Open
Abstract
Background Staphylococcus aureus in its biofilm form has been associated with recalcitrant chronic rhinosinusitis with significant resistance to conventional therapies. This study aims to determine if liposomal-encapsulation of a precursor of the naturally occurring antimicrobial nitric oxide (NO) enhances its desired anti-biofilm effects against S. aureus, in the hope that improving its efficacy can provide an effective topical agent for future clinical use. Methodology S. aureus ATCC 25923 biofilms were grown in-vitro using the Minimum Biofilm Eradication Concentration (MBEC) device and exposed to 3 and 60 mg/mL of the NO donor isosorbide mononitrate (ISMN) encapsulated into different anionic liposomal formulations based on particle size (unilamellar ULV, multilamellar MLV) and lipid content (5 and 25 mM) at 24 h and 5 min exposure times. Biofilms were viewed using Live-Dead Baclight stain and confocal scanning laser microscopy and quantified using the software COMSTAT2. Results At 3 and 60 mg/mL, ISMN-ULV liposomes had comparable and significant anti-biofilm effects compared to untreated control at 24 h exposure (p = 0.012 and 0.02 respectively). ULV blanks also had significant anti-biofilm effects at both 24 h and 5 min exposure (p = 0.02 and 0.047 respectively). At 5 min exposure, 60 mg/mL ISMN-MLV liposomes appeared to have greater anti-biofilm effects compared to pure ISMN or ULV particles. Increasing liposomal lipid content improved the anti-biofilm efficacy of both MLV and ULVs at 5 min exposure. Conclusion Liposome-encapsulated “nitric oxide” is highly effective in eradicating S. aureus biofilms in-vitro, giving great promise for use in the clinical setting to treat this burdensome infection. Further studies however are needed to assess its safety and efficacy in-vivo before clinical translation is attempted.
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Affiliation(s)
- Camille Jardeleza
- Department of Surgery- Otorhinolaryngology Head and Neck Surgery, The Queen Elizabeth Hospital, and the University of Adelaide, Adelaide, South Australia
| | - Shasha Rao
- The Ian Wark Institute, University of South Australia, Mawson Lakes, South Australia
| | - Benjamin Thierry
- The Ian Wark Institute, University of South Australia, Mawson Lakes, South Australia
| | - Pratik Gajjar
- The Ian Wark Institute, University of South Australia, Mawson Lakes, South Australia
| | - Sarah Vreugde
- Department of Surgery- Otorhinolaryngology Head and Neck Surgery, The Queen Elizabeth Hospital, and the University of Adelaide, Adelaide, South Australia
| | - Clive A. Prestidge
- The Ian Wark Institute, University of South Australia, Mawson Lakes, South Australia
| | - Peter-John Wormald
- Department of Surgery- Otorhinolaryngology Head and Neck Surgery, The Queen Elizabeth Hospital, and the University of Adelaide, Adelaide, South Australia
- * E-mail:
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Moghadas-Sharif N, Fazly Bazzaz BS, Khameneh B, Malaekeh-Nikouei B. The effect of nanoliposomal formulations onStaphylococcus epidermidisbiofilm. Drug Dev Ind Pharm 2014; 41:445-50. [DOI: 10.3109/03639045.2013.877483] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Drug Delivery Systems That Eradicate and/or Prevent Biofilm Formation. SPRINGER SERIES ON BIOFILMS 2014. [DOI: 10.1007/978-3-642-53833-9_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Cottenye N, Cui ZK, Wilkinson KJ, Barbeau J, Lafleur M. Interactions between non-phospholipid liposomes containing cetylpyridinium chloride and biofilms of Streptococcus mutans: modulation of the adhesion and of the biodistribution. BIOFOULING 2013; 29:817-827. [PMID: 23826726 DOI: 10.1080/08927014.2013.807505] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Cetylpyridinium chloride (CPC) is a surfactant that binds strongly to bacteria and bacterial biofilms. In this study, fluorescence-based techniques were used to determine the penetration and adhesion of CPC when it was introduced in liposomes. In spite of a reduced adhesion as compared to pure CPC micelles, CPC-containing liposomes adhered significantly to the biofilms of Streptococcus mutans. In contrast, no binding was observed for liposomes that were composed of phosphatidylcholine-cholesterol. The influence of the charge of the liposome on its adhesion to biofilms was studied using cholesterol (Chol) and cholesterol sulfate (Schol). In spite of similar binding to the biofilms, positively charged CPC/Chol liposomes were located mainly in the core of the biofilm microcolonies, whereas the negatively charged CPC/Schol liposomes were mainly concentrated at their periphery. This effect may be attributed to the different availability of the CPC head group. In summary, this work demonstrates the high potential for tailoring drug nanovectors by modulating sterol selection in order to selectively target and bind biofilms.
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Affiliation(s)
- Nicolas Cottenye
- Department of Chemistry, Center for Self-Assembled Chemical Structures (CSACS), Université de Montréal, Montréal, QC, Canada
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Cui ZK, Bouisse A, Cottenye N, Lafleur M. Formation of pH-sensitive cationic liposomes from a binary mixture of monoalkylated primary amine and cholesterol. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13668-13674. [PMID: 22931455 DOI: 10.1021/la302278q] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
It has been shown that mixtures of monoalkylated amphiphiles and sterols can form liquid-ordered (lo) lamellar phases. These bilayers can be extruded using conventional methods to obtain large unilamellar vesicles (LUVs) that have very low permeability and a specific response to a given stimulus. For example, pH variations can trigger the release from LUVs formed with palmitic acid and sterols. In the present work, the possibility to form non phospholipid liposomes with mixtures of stearylamine (SA) and cholesterol (Chol) was investigated. The phase behavior of these mixtures was characterized by differential scanning calorimetry, infrared, and (2)H NMR spectroscopy. It is found that this particular mixture can form a lo lamellar phase that is pH-sensitive as the system undergoes a transition from a lo phase to a solid state when pH is increased from 5.5 to 12. LUVs have been successfully extruded from equimolar SA/Chol mixtures. Release experiments as a function of time revealed the relatively low permeability of these systems. The fact that the stability of these liposomes is pH dependent implies that these LUVs display an interesting potential as new cationic carriers for pH-triggered release. This is the first report of non phospholipid liposomes with high sterol content combining an overall positive charge and pH-sensitivity.
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Affiliation(s)
- Zhong-Kai Cui
- Department of Chemistry, Center for self-assembled chemical structures, Université de Montréal, C.P. 6128, Succ. Centre Ville, Montréal, Québec H3C 3J7, Canada
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Ma T, Shang BC, Tang H, Zhou TH, Xu GL, Li HL, Chen QH, Xu YQ. Nano-hydroxyapatite/chitosan/konjac glucomannan scaffolds loaded with cationic liposomal vancomycin: preparation, in vitro release and activity against Staphylococcus aureus biofilms. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 22:1669-81. [PMID: 21605505 DOI: 10.1163/092050611x570644] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The objective of this study was to design a novel artificial bone scaffold for the therapy and prevention of refractory bacterial infections. Porous nano-hydroxyapatite/chitosan/konjac glucomannan (n-HA/CS/KGM) scaffolds were loaded with cationic liposomal vancomycin (CLV) to form a novel complex drug carrier (LLS). The kinetics of CLV release from LLS and the effects of the amount of konjac glucomannan (KGM) and CLV in LLS were examined in vitro. The anti-biofilm activity of LLS was also studied. Electron microscopy indicated that the liposomes were well preserved in the scaffold, and that CLV rather than free vancomycin is released from the scaffold. The weight percentage of KGM or CLV greatly influenced the release behavior of the scaffolds. LLS could provide sustained CLV release and inhibited the formation of Staphylococcus aureus biofilms better than scaffolds without CLV loaded. LLS may be a novel, effective drug-delivery system for the antibiotic treatment of osteomyelitis caused by biofilm infections.
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Affiliation(s)
- Tao Ma
- Kunming General Hospital of Chengdu Military Region, Yunnan, PR China
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Zhou TH, Su M, Shang BC, Ma T, Xu GL, Li HL, Chen QH, Sun W, Xu YQ. Nano-hydroxyapatite/β-tricalcium phosphate ceramics scaffolds loaded with cationic liposomal ceftazidime: preparation, release characteristicsin vitroand inhibition toStaphylococcus aureusbiofilms. Drug Dev Ind Pharm 2012; 38:1298-304. [DOI: 10.3109/03639045.2011.648196] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gerola AP, Santana A, França PB, Tsubone TM, de Oliveira HPM, Caetano W, Kimura E, Hioka N. Effects of metal and the phytyl chain on chlorophyll derivatives: physicochemical evaluation for photodynamic inactivation of microorganisms. Photochem Photobiol 2011; 87:884-94. [PMID: 21501173 DOI: 10.1111/j.1751-1097.2011.00935.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Chlorophyll compounds and their derivatives containing metal or phytyl chain can be used as photosensitizer in photodynamic inactivation of microorganisms (PDI). So, the physicochemical properties and antimicrobial effect of chlorophyll derivatives were investigated: Mg-chlorophyll (Mg-Chl), Zn-chlorophyll (Zn-Chl), Zn-chlorophyllide (Zn-Chlde), Cu-chlorophyll (Cu-Chl), pheophytin (Pheo) and pheophorbide (Pheid). The photobleaching experiments showed photostability according to Cu-Chl > Pheo ∼ Pheid ≫ Zn-Chl ∼ Zn-Chlde > Mg-Chl. This order was discussed in terms of metal and the phytyl chain presences. Pheid and Zn-Chl in aqueous Tween 80 solution exhibited highest singlet oxygen yield compared with the other derivatives. Chlorophyll derivatives (CD) with phytyl chain was limited by the self-aggregation phenomenon at high concentrations, even in micellar systems (Tween 80 and P-123). The antimicrobial effect of CD derivatives was investigated against Staphylococcus aureus, Escherichia coli, Candida albicans and Artemia salina. Pheid showed the best results against all organisms tested, Zn-Chlde was an excellent bactericide in the dark and Cu-Chl had no PDI effect. No correlation with CD uptake by microorganisms and darkness cytotoxicity was found. The physicochemical properties allied to bioassays results indicate that Mg-Chl, Pheo, Zn-Chl and Pheid are good candidates for PDI.
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Affiliation(s)
- Adriana P Gerola
- Chemistry Department, State University of Maringá, Maringá, Brazil
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Drulis-Kawa Z, Dorotkiewicz-Jach A. Liposomes as delivery systems for antibiotics. Int J Pharm 2010; 387:187-98. [DOI: 10.1016/j.ijpharm.2009.11.033] [Citation(s) in RCA: 222] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 11/25/2009] [Accepted: 11/27/2009] [Indexed: 11/25/2022]
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Kalasin S, Santore MM. Non-specific adhesion on biomaterial surfaces driven by small amounts of protein adsorption. Colloids Surf B Biointerfaces 2009; 73:229-36. [DOI: 10.1016/j.colsurfb.2009.05.028] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2009] [Revised: 05/05/2009] [Accepted: 05/25/2009] [Indexed: 01/07/2023]
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Hui T, Yongqing X, Tiane Z, Gang L, Yonggang Y, Muyao J, Jun L, Jing D. Treatment of osteomyelitis by liposomal gentamicin-impregnated calcium sulfate. Arch Orthop Trauma Surg 2009; 129:1301-8. [PMID: 19034468 DOI: 10.1007/s00402-008-0782-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Traditional therapy of staphylococcal osteomyelitis is ineffective in producing complete sterilization of infected bones due to the formation of the Staphylococcus aureus biofilms. The aim of this study was to develop a new drug-delivery system of antibiotics for treatment of chronic experimental osteomyelitis. METHODS In the current work, cationic liposomal gentamicin was prepared and impregnated in calcium sulfate (CS), and tested for anti-biofilm activities in vitro and in vivo. RESULTS AND CONCLUSIONS The combination of liposomal gentamicin and CS showed initial burst-release of active liposomal gentamicin and had continuous-release (12 days). Liposomal gentamicin released from CS had the same anti-biofilm activity with the liposomal gentamicin prepared freshly. Meanwhile, both agents were more effective relative to free gentamicin at low drug concentration. Therapeutic trials with antibiotics given intravenously revealed that free gentamicin for 14 days was ineffective in sterilizing bone. Treatment with liposomal gentamicin for 14 days resulted in recovery of 33.3% of treated animals, which was the lower slightly than the result treated with implantation of gentamicin-impregnated CS (66.7%). Complete sterilization of bone tissues on cultures (100% cure) was obtained only in the group of liposomal gentamicin-impregnated CS treated for 14 days. The new drug-delivery system was effective in preventing biofilm infection in a contaminated defect, and it could also be used clinically for bacterial infections in the conditions like plaque formation or in arresting biofilm formation in the implanted devices or dead bone of osteomyelitis.
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Affiliation(s)
- Tang Hui
- Orthopedic Center, Kunming General Hospital of Chengdu Military Command, Kunming, China
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Manosroi A, Thathang K, Manosroi J, Werner RG, Schubert R, Peschka-Süss R. Expression of luciferase plasmid (pCMVLuc) entrapped in DPPC/Cholesterol/DDAB liposomes in HeLa cell lines. J Liposome Res 2009; 19:131-40. [DOI: 10.1080/08982100802642457] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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41
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Kinnari TJ, Esteban J, Martin-de-Hijas NZ, Sánchez-Muñoz O, Sánchez-Salcedo S, Colilla M, Vallet-Regí M, Gomez-Barrena E. Influence of surface porosity and pH on bacterial adherence to hydroxyapatite and biphasic calcium phosphate bioceramics. J Med Microbiol 2009; 58:132-137. [PMID: 19074665 DOI: 10.1099/jmm.0.002758-0] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Hydroxyapatite (HA) and biphasic calcium phosphate (BCP) ceramic materials are widely employed as bone substitutes due to their porous and osteoconductive structure. Their porosity and the lowering of surrounding pH as a result of surgical trauma may, however, predispose these materials to bacterial infections. For this reason, the influence of porosity and pH on the adherence of common Gram-positive bacteria to the surfaces of these materials requires investigation. Mercury intrusion porosimetry measurements revealed that the pore size distribution of both bioceramics had, on a logarithmic scale, a sinusoidal frequency distribution ranging from 50 to 300 nm, with a mean pore diameter of 200 nm. Moreover, total porosity was 20 % for HA and 50 % for BCP. Adherence of Staphylococcus aureus and Staphylococcus epidermidis was studied at a physiological pH of 7.4 and at a pH simulating bone infection of 6.8. Moreover, the effect of pH on the zeta potential of HA, BCP and of both staphylococci was evaluated. Results showed that when pH decreased from 7.4 to 6.8, the adherence of both staphylococci to HA and BCP surfaces decreased significantly, although at the same time the negative zeta-potential values of the ceramic surfaces and both bacteria diminished. At both pH values, the number of S. aureus adhered to the HA surface appeared to be lower than that for BCP. A decrease in pH to 6.8 reduced the adherence of both bacterial species (mean 57 %). This study provides evidence that HA and BCP ceramics do not have pores sufficiently large to allow the internalization of staphylococci. Their anti-adherent properties seemed to improve when pH value decreased, suggesting that HA and BCP bioceramics are not compromised upon orthopaedic use.
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Affiliation(s)
- Teemu J Kinnari
- Department of Otolaryngology, Helsinki University Central Hospital, PO Box 220, FI-00029 HUS, Finland.,Department of Orthopaedic Surgery and Traumatology, Fundación Jiménez Díaz-UTE, Avda de Reyes Católicos 2, E-28040 Madrid, Spain.,Department of Clinical Microbiology, Fundación Jiménez Díaz-UTE, Avda de Reyes Católicos 2, E-28040 Madrid, Spain
| | - Jaime Esteban
- Department of Clinical Microbiology, Fundación Jiménez Díaz-UTE, Avda de Reyes Católicos 2, E-28040 Madrid, Spain
| | - Nieves Z Martin-de-Hijas
- Department of Clinical Microbiology, Fundación Jiménez Díaz-UTE, Avda de Reyes Católicos 2, E-28040 Madrid, Spain
| | - Orlando Sánchez-Muñoz
- Instituto de Ciencias de los Materiales, Universidad de Valencia, PO Box 22085, E-46071 Valencia, Spain.,Department of Medicine, Helsinki University Central Hospital, PO Box 700, FI-00029 HUS, Finland
| | - Sandra Sánchez-Salcedo
- Department of Inorganic and Bioinorganic Chemistry, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
| | - Montserrat Colilla
- Department of Inorganic and Bioinorganic Chemistry, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
| | - María Vallet-Regí
- Department of Inorganic and Bioinorganic Chemistry, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, E-28040 Madrid, Spain
| | - Enrique Gomez-Barrena
- Department of Orthopaedic Surgery and Traumatology, Fundación Jiménez Díaz-UTE, Avda de Reyes Católicos 2, E-28040 Madrid, Spain
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The potential of lipid- and polymer-based drug delivery carriers for eradicating biofilm consortia on device-related nosocomial infections. J Control Release 2008; 128:2-22. [DOI: 10.1016/j.jconrel.2008.01.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Accepted: 01/08/2008] [Indexed: 11/23/2022]
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Suci PA, Berglund DL, Liepold L, Brumfield S, Pitts B, Davison W, Oltrogge L, Hoyt KO, Codd S, Stewart PS, Young M, Douglas T. High-density targeting of a viral multifunctional nanoplatform to a pathogenic, biofilm-forming bacterium. ACTA ACUST UNITED AC 2007; 14:387-98. [PMID: 17462574 DOI: 10.1016/j.chembiol.2007.02.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Revised: 01/10/2007] [Accepted: 02/07/2007] [Indexed: 11/22/2022]
Abstract
Nanomedicine directed at diagnosis and treatment of infections can benefit from innovations that have substantially increased the variety of available multifunctional nanoplatforms. Here, we targeted a spherical, icosahedral viral nanoplatform to a pathogenic, biofilm-forming bacterium, Staphylococcus aureus. Density of binding mediated through specific protein-ligand interactions exceeded the density expected for a planar, hexagonally close-packed array. A multifunctionalized viral protein cage was used to load imaging agents (fluorophore and MRI contrast agent) onto cells. The fluorescence-imaging capability allowed for direct observation of penetration of the nanoplatform into an S. aureus biofilm. These results demonstrate that multifunctional nanoplatforms based on protein cage architectures have significant potential as tools for both diagnosis and targeted treatment of recalcitrant bacterial infections.
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Affiliation(s)
- Peter A Suci
- Department of Microbiology, Center for BioInspired Nanomaterials, Montana State University, Bozeman, MT 59717, USA
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Abstract
Methods are described for the preparation of anionic and cationic liposomes and proteoliposomes with covalently linked lectins or antibodies by the extrusion technique (vesicles by extrusion, VETs). The liposomes are prepared from the phospholipid dipalmitoylphosphatidylcholine (DPPC), together with the anionic lipid phosphatidylinositol (PI) or the cationic amphiphile dioctadecyldimethylammonium bromide (DDAB) together with the reactive lipid DPPE-MBS, the m-maleimidobenzoyl-N-hydroxysuccinimide (MBS) derivative of dipalmitoylphosphatidylethanolamine (DPPE). Proteins (lectin or antibody), after derivatization with N-succinimidyl-S-acetylthioacetate (SATA), can be covalently linked to the surface of the liposomes by reaction with the reactive lipid, DPPE-MBS. The physical and chemical characterization of the liposomes and proteoliposomes by photon correlation spectroscopy (PCS) and protein analysis, to determine the number of chemically linked protein molecules (lectin or antibody) per liposome, are described. The liposomes can be used for carrying oil-soluble bactericides (e.g., Triclosan) or water-soluble antibiotics (e.g., vancomycin or benzylpenicillin) and targeted to immobilized bacterial biofilms of oral or skin-associated bacteria adsorbed on microtiter plates. Techniques for the preparation of immobilized bacterial biofilms, applicable to a wide range of bacterial suspensions, and for the analysis of the adsorption (targeting) of the liposomes to the bacterial biofilms are given. The mode of delivery and assessment of antibacterial activity of liposomes encapsulating bactericides and antibiotics, when targeted to the bacterial biofilms, by use of an automated microtiter plate reader, are illustrated, with specific reference to the delivery of the antibiotic benzylpenicillin encapsulated in anionic liposomes to biofilms of Staphylococcus aureus. The methods have potential application for the delivery of oil-soluble or water-soluble bactericidal compounds to a wide range of adsorbed bacteria responsible for infections in implanted devices such as catheters, heart valves, and artificial joints.
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Affiliation(s)
- Malcolm N Jones
- School of Biological Sciences, University of Manchester, Manchester, UK
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Kim HJ, Jones MN. The Delivery of Benzyl Penicillin toStaphylococcus aureusBiofilms by Use of Liposomes. J Liposome Res 2004; 14:123-39. [PMID: 15676122 DOI: 10.1081/lpr-200029887] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The delivery of benzyl penicillin [penicillin G (pen-G)] encapsulated in cationic liposomes to a pen-G-sensitive strain of Staphylococcus aureus immobilized in biofilms has been investigated. The cationic liposomes prepared by extrusion (VETs, diameter approximately 140 nm) were composed of dipalmitoylphosphatidylcholine (DPPC), cholesterol, and dimethylammonium ethane carbamoyl cholesterol (DC-chol) at a molar ratio of 1.0:0.49:0.43. This composition containing 22 mole% of the cationic lipid DC-chol has been found previously (Kim et al. Colloids Surfaces A 1999, 149, 561-570) to be optimum for adsorption of the liposomes on S. aureus biofilms. The effectiveness of the liposomes to deliver pen-G to the biofilms immobilized on microtitre plates was assessed from the rate of growth of the cells after exposure to the liposomal drug carrier relative to free pen-G at the same concentration. The time to reach maximum growth rate from biofilms was investigated as a function of overall drug concentration in a range 2.9 x 10- 3 mM to 1.09 mM and as a function of time of exposure to liposomal drug in a range 1.5 s to 2 h. Liposomal drug delivery was most effective relative to free drug at low overall drug concentrations and short times of exposure. The time to reach maximum growth rate from S. aureus biofilms could be extended by a factor of approximately 4 relative to free drug by the use of liposomally encapsulated pen-G. The results were supported by direct measurements of the distribution of pen-G between biofilm and supernatant which showed enhanced values relative to free drug and a transient preferential uptake of drug induced by the liposomes. The study demonstrates that for low drug concentrations and short exposure times liposomal drug delivery greatly enhances the effectiveness of pen-G for inhibiting the growth of bacterial biofilms of the potentially pathogenic bacterium Staphylococcus aureus.
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Affiliation(s)
- Hee-Jeong Kim
- School of Biological Sciences, University of Manchester, Manchester, UK
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47
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Catuogno C, Jones MN. The antibacterial properties of solid supported liposomes on Streptococcus oralis biofilms. Int J Pharm 2003; 257:125-40. [PMID: 12711168 DOI: 10.1016/s0378-5173(03)00136-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A novel system for the delivery of drugs to bacterial biofilms has been developed. The system is based on the use of anionic and cationic liposomes as drug carriers adsorbed on the surface of zinc citrate particles. The adsorption process results in the formation of solid supported vesicles (SSVs) which aids the stabilisation of the liposomes. Anionic liposomes have been prepared by incorporation of phosphatidylinositol (PI) into dipalmitoylphosphatidylcholine (DPPC) liposomes and cationic liposomes have been prepared by incorporation of dioctadecyldimethylammonium bromide (DDAB) into DPPC plus cholesterol liposomes. The liposomes were adsorbed onto zinc citrate particle and targeted to immobilised biofilms of the oral bacterium Streptococcus oralis. The liposomes were used to carry the bactericides, Triclosan, a lipid-soluble agent, and the aqueous-soluble penicillin-G, and their ability to inhibit bacterial growth from immobilised biofilms was accessed. Zinc citrate is itself a bactericide and is used in the formulation of toothpastes. The SSVs carrying the drugs have therapeutic properties. To trace the origin of these properties, each component of the SSV was investigated alone and in combination in binary systems. Some combinations showed synergistic (or additive) antibacterial effects while others showed regressive effects compared with their components.
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Affiliation(s)
- Christelle Catuogno
- School of Biological Sciences, University of Manchester, Manchester M13 9PL, UK
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Ahmed K, Jones MN. The effect of shear on the desorption of liposomes adsorbed to bacterial biofilms. J Liposome Res 2003; 13:187-97. [PMID: 12855112 DOI: 10.1081/lpr-120020320] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
With the aid of a flow cell assembly the desorption of cationic liposomes prepared from mixtures of dipalmitoylphoshatidylcholine (DDPC), cholesterol, and either dimethyldioctadecylammonium bromide (DDAB) or 3,beta[N-(N1,N-dimethylethylenediamine)-carbamoyl]cholesterol (DC-chol) from immobilized biofilms of Staphylococcus aureus has been studied as a function of shear stress by confocal microscopy. A shear stress theory has been adapted from fluid mechanics of laminar flow between parallel plates and used to determine the critical shear stress for liposome desorption. The critical shear stress for both DDAB and DC-chol liposomes has been determined as a function of cationic lipid content and hence surface charge as reflected in their zeta potentials. The critical shear stress has been used to obtain the potential energy of liposome-biofilm interaction which together with the electrostatic interaction energy has enabled estimates of the London-Hamaker constants to be made. The values of the London-Hamaker constants at small liposome-bacterial cell separation were found to be independent of liposome composition.
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Affiliation(s)
- Khalid Ahmed
- School of Biological Sciences, University of Manchester, Manchester, UK
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Ahmed K, Gribbon PN, Jones MN. The application of confocal microscopy to the study of liposome adsorption onto bacterial biofilms. J Liposome Res 2002; 12:285-300. [PMID: 12519626 DOI: 10.1081/lpr-120016195] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Confocal laser scanning microscopy has been used to visualise the adsorption of fluorescently labelled liposomes on immobilised biofilms of the bacterium Staphylococcus aureus. The liposomes were prepared with a wide range of compositions with phosphatidylcholines as the predominant lipids using the extrusion technique. They had weight average diameters of 125 +/- 5 nm and were prepared with encapsulated carboxyfluorescein. Cationic liposomes were prepared by incorporating dimethyldioctadecylammonium bromide (DDAB) or 3, beta [N-(N1,N1 dimethylammonium ethane)-carbamoyl] cholesterol (DC-chol) and anionic liposomes were prepared by incorporation of phosphatidylinositol (PI). Pegylated cationic liposomes were prepared by incorporation of DDAB and 1,2-dipalmitoylphosphatidylethanolamine-N-[polyethylene glycol)-2000]. Confocal laser scanned images showed the preferential adsorption of the fluorescent cationic liposomes at the biofilm-bulk phase interface which on quantitation gave fluorescent peaks at the interface when scanned perpendicular (z-direction) to the biofilm surface (x-y plane). The biofilm fluorescence enhancement (BFE) at the interface was examined as a function of liposomal lipid concentration and liposome composition. Studies of the extent of pegylation of the cationic liposomes incorporating DDAB, on adsorption at the biofilm-bulk phase interface were made. The results demonstrated that pegylation inhibited adsorption to the bacterial biofilms as seen by the decline in the peak of fluorescence as the mole% DPPE-PEG-2000 was increased in a range from 0 to 9 mole%. The results indicate that confocal laser scanning microscopy is a useful technique for the study of liposome adsorption to bacterial biofilms and complements the method based on the use of radiolabelled liposomes.
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Affiliation(s)
- Khalid Ahmed
- School of Biological Sciences, University of Manchester, Manchester, M13 9PL, UK
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