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Le H, Dé E, Le Cerf D, Karakasyan C. Using Targeted Nano-Antibiotics to Improve Antibiotic Efficacy against Staphylococcus aureus Infections. Antibiotics (Basel) 2023; 12:1066. [PMID: 37370385 DOI: 10.3390/antibiotics12061066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
The poor bioavailability of antibiotics at infection sites is one of the leading causes of treatment failure and increased bacterial resistance. Therefore, developing novel, non-conventional antibiotic delivery strategies to deal with bacterial pathogens is essential. Here, we investigated the encapsulation of two fluoroquinolones, ciprofloxacin and levofloxacin, into polymer-based nano-carriers (nano-antibiotics), with the goal of increasing their local bioavailability at bacterial infection sites. The formulations were optimized to achieve maximal drug loading. The surfaces of nano-antibiotics were modified with anti-staphylococcal antibodies as ligand molecules to target S. aureus pathogens. The interaction of nano-antibiotics with the bacterial cells was investigated via fluorescent confocal microscopy. Conventional tests (MIC and MBC) were used to examine the antibacterial properties of nano-antibiotic formulations. Simultaneously, a bioluminescence assay model was employed, revealing the rapid and efficient assessment of the antibacterial potency of colloidal systems. In comparison to the free-form antibiotic, the targeted nano-antibiotic exhibited enhanced antimicrobial activity against both the planktonic and biofilm forms of S. aureus. Furthermore, our data suggested that the efficacy of a targeted nano-antibiotic treatment can be influenced by its antibiotic release profile.
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Affiliation(s)
- Hung Le
- Sciences & Technic Faculty, Univ Rouen Normandie, INSA Rouen Normandie, CNRS, PBS UMR 6270, 76000 Rouen, France
| | - Emmanuelle Dé
- Sciences & Technic Faculty, Univ Rouen Normandie, INSA Rouen Normandie, CNRS, PBS UMR 6270, 76000 Rouen, France
| | - Didier Le Cerf
- Sciences & Technic Faculty, Univ Rouen Normandie, INSA Rouen Normandie, CNRS, PBS UMR 6270, 76000 Rouen, France
| | - Carole Karakasyan
- Sciences & Technic Faculty, Univ Rouen Normandie, INSA Rouen Normandie, CNRS, PBS UMR 6270, 76000 Rouen, France
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2
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Bahr MN, Matamoros SV, Campbell GA. A High Throughput Approach of Selecting Excipients for Solubility Enhancement of BCS Class II Active Pharmaceutical Ingredients for Oral Dosage Forms. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2023.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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3
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Formulation attributes, acid tunable degradability and cellular interaction of acetalated maltodextrin nanoparticles. Carbohydr Polym 2022; 288:119378. [DOI: 10.1016/j.carbpol.2022.119378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 01/06/2023]
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4
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Günday C, Anand S, Gencer HB, Munafò S, Moroni L, Fusco A, Donnarumma G, Ricci C, Hatir PC, Türeli NG, Türeli AE, Mota C, Danti S. Ciprofloxacin-loaded polymeric nanoparticles incorporated electrospun fibers for drug delivery in tissue engineering applications. Drug Deliv Transl Res 2021; 10:706-720. [PMID: 32100267 DOI: 10.1007/s13346-020-00736-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Presented work focuses on the development of biodegradable polymer nanoparticles loaded with antibiotics as drug delivery systems deposited on electrospun scaffolds for tissue engineering. The innovative ciprofloxacin-loaded poly(DL-lactide-co-glycolide) NPs ensure a continuous slow release and high local concentration at the site of action for an optimal therapy. The local delivery of antibiotics as an integrated part of electrospun scaffolds offers an effective, safe, and smart enhancement supporting tissue regeneration. Presented data provides solid scientific evidence for fulfilling the requirements of local nano antibiotic delivery systems with biodegradability and biocompatibility for a wide range of tissue engineering applications, including middle ear tissues (e.g., tympanic membranes) which are subject to bacterial infections. Further characterization of such systems, including in vivo studies, is required to ensure successful transfer from lab to clinical applications. Graphical abstract .
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Affiliation(s)
- Cemre Günday
- MJR PharmJet GmbH, Industriestr. 1B, 66802, Überherrn, Germany
| | - Shivesh Anand
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Complex Tissue Regeneration, Maastricht University, 6229 ER, Maastricht, The Netherlands
| | - Hikmet Burcu Gencer
- Department of Biomedical Engineering, Istanbul Arel University, 34537, İstanbul, Turkey
| | - Sara Munafò
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Complex Tissue Regeneration, Maastricht University, 6229 ER, Maastricht, The Netherlands.,Department of Civil and Industrial Engineering, University of Pisa, 56122, Pisa, Italy
| | - Lorenzo Moroni
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Complex Tissue Regeneration, Maastricht University, 6229 ER, Maastricht, The Netherlands
| | - Alessandra Fusco
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138, Naples, Italy.,Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Florence, Italy
| | - Giovanna Donnarumma
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", 80138, Naples, Italy.,Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Florence, Italy
| | - Claudio Ricci
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Florence, Italy
| | - Pinar Cakir Hatir
- Department of Biomedical Engineering, Istanbul Arel University, 34537, İstanbul, Turkey
| | | | | | - Carlos Mota
- MERLN Institute for Technology-Inspired Regenerative Medicine, Department of Complex Tissue Regeneration, Maastricht University, 6229 ER, Maastricht, The Netherlands
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, 56122, Pisa, Italy.,Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Florence, Italy
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5
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Testing of aerosolized ciprofloxacin nanocarriers on cystic fibrosis airway cells infected with P. aeruginosa biofilms. Drug Deliv Transl Res 2021; 11:1752-1765. [PMID: 34047967 PMCID: PMC8236054 DOI: 10.1007/s13346-021-01002-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2021] [Indexed: 01/22/2023]
Abstract
The major pathogen found in the lungs of adult cystic fibrosis (CF) patients is Pseudomonas aeruginosa, which builds antibiotic-resistant biofilms. Pulmonary delivery of antibiotics by inhalation has already been proved advantageous in the clinic, but the development of novel anti-infective aerosol medicines is complex and could benefit from adequate in vitro test systems. This work describes the first in vitro model of human bronchial epithelial cells cultivated at the air-liquid interface (ALI) and infected with P. aeruginosa biofilm and its application to demonstrate the safety and efficacy of aerosolized anti-infective nanocarriers. Such a model may facilitate the translation of novel therapeutic modalities into the clinic, reducing animal experiments and the associated problems of species differences. A preformed biofilm of P. aeruginosa PAO1 was transferred to filter-grown monolayers of the human CF cell line (CFBE41o-) at ALI and additionally supplemented with human tracheobronchial mucus. This experimental protocol provides an appropriate time window to deposit aerosolized ciprofloxacin-loaded nanocarriers at the ALI. When applied 1 h post-infection, the nanocarriers eradicated all planktonic bacteria and reduced the biofilm fraction of the pathogen by log 6, while CFBE41o- viability and barrier properties were maintained. The here described complex in vitro model approach may open new avenues for preclinical safety and efficacy testing of aerosol medicines against P. aeruginosa lung infection.
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6
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Dong B, Hadinoto K. Assessing the impact of counterion types on the sustained release characteristics of high-payload drug-ion complex: A case study on tetracycline hydrochloride. Eur J Pharm Sci 2021; 161:105787. [PMID: 33684485 DOI: 10.1016/j.ejps.2021.105787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/29/2021] [Accepted: 03/02/2021] [Indexed: 02/07/2023]
Abstract
Complexation of ionized hydrophilic drugs with counterions (e.g. polyelectrolytes, ionic amphiphiles, multivalent salt ions) represents a well-established formulation approach to produce sustained release of highly soluble drugs while maintaining a high drug payload. This renders the drug-ion complex an attractive alternative to the conventional polymer matrix systems. The effects of the counterion's type on the sustained release characteristics of drug-ion complexes, however, have not been investigated before under the same dissolution environment. Using antibiotic tetracycline hydrochloride (TC•HCl) as the model hydrophilic drug, we investigated the effects of three types of counterions, sodium dextran sulfate (DXT), sodium dodecyl sulfate (SDS), and K2HPO4, on (1) the sustained release characteristics, (2) long-term storage stability, (3) preparation efficiency (i.e. yield, payload), and (4) antibiotic activity of the resultant (TC•HCl)-ion complexes. The results showed that the three complexes exhibited comparable TC•HCl payloads at approximately 80% (w/w) and yield between 40 and 60% (w/w). They also exhibited good storage stability after 18 months and uncompromised antibiotic activity compared to the native drug. In the intestinal fluid, all three complexes could produce sustained drug release profiles, albeit at different rates ((TC•HCl)-DXT > (TC•HCl)-SDS > (TC•HCl)-HPO4), whereas in the gastric fluid, only the (TC•HCl)-DXT complex could produce a sustained release profile suitable for oral delivery. The different sustained release profiles among the complexes were attributed to their different solid forms (amorphous versus crystalline), hydrophobicity, solubility, and drug release mechanisms. The present work highlighted the importance of selecting the most suitable counterion to achieve the desired sustained drug release profile.
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Affiliation(s)
- Bingxue Dong
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459
| | - Kunn Hadinoto
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459.
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7
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Hering I, Eilebrecht E, Parnham MJ, Günday-Türeli N, Türeli AE, Weiler M, Schäfers C, Fenske M, Wacker MG. Evaluation of potential environmental toxicity of polymeric nanomaterials and surfactants. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 76:103353. [PMID: 32086102 DOI: 10.1016/j.etap.2020.103353] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/05/2020] [Indexed: 05/25/2023]
Abstract
Nanomaterials have gained huge importance in various fields including nanomedicine. Nanoformulations of drugs and nanocarriers are used to increase pharmaceutical potency. However, it was seen that polymeric nanomaterials can cause negative effects. Thus, it is essential to identify nanomaterials with the least adverse effects on aquatic organisms. To determine the toxicity of polymeric nanomaterials, we investigated the effects of poly(lactic-co-glycolid) acid (PLGA), Eudragit® E 100 and hydroxylpropyl methylcellulose phthalate (HPMCP) on zebrafish embryos using the fish embryo toxicity test (FET). Furthermore, we studied Cremophor® RH40, Cremophor® A25, Pluronic® F127 and Pluronic® F68 applied in the generation of nanoformulations to identify the surfactant with minimal toxic impact. The order of ecotoxicty was HPMCP < PLGA < Eudragit® E100 and Pluronic® F68 < Pluronic® F127 < Cremophor® RH40 < Cremophor® A25. In summary, HPMCP and Pluronic® F68 displayed the least toxic impact, thus suggesting adequate environmental compatibility for the generation of nanomedicines.
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Affiliation(s)
- Indra Hering
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, 65926, Frankfurt, Main, Germany; Fraunhofer Institut für Molekularbiologie und Angewandte Oekologie IME, 57392, Schmallenberg, Germany; Goethe University Frankfurt am Main, Department Aquatic Ecotoxicology, Max-von-Laue-Str. 13, 60438 Frankfurt am Main, Germany.
| | - Elke Eilebrecht
- Fraunhofer Institut für Molekularbiologie und Angewandte Oekologie IME, 57392, Schmallenberg, Germany
| | - Michael J Parnham
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, 65926, Frankfurt, Main, Germany
| | | | | | - Marc Weiler
- MJR, PharmJet GmbH, 66802, Überherrn, Germany
| | - Christoph Schäfers
- Fraunhofer Institut für Molekularbiologie und Angewandte Oekologie IME, 57392, Schmallenberg, Germany
| | - Martina Fenske
- Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IME, 65926, Frankfurt, Main, Germany.
| | - Matthias G Wacker
- National University of Singapore, Department of Pharmacy, Faculty of Science, 6 Science Drive 2, Singapore, 117546, Singapore
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8
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Liu J, Guan J, Wan X, Shang R, Shi X, Fang L, Liu C. The Improved Cargo Loading and Physical Stability of Ibuprofen Orodispersible Film: Molecular Mechanism of Ion-Pair Complexes on Drug-Polymer Miscibility. J Pharm Sci 2020; 109:1356-1364. [DOI: 10.1016/j.xphs.2019.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 10/25/2022]
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9
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Carboxymethyl cellulose is a superior polyanion to dextran sulfate in stabilizing and enhancing the solubility of amorphous drug-polyelectrolyte nanoparticle complex. Int J Biol Macromol 2019; 139:500-508. [DOI: 10.1016/j.ijbiomac.2019.08.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/02/2019] [Accepted: 08/02/2019] [Indexed: 12/11/2022]
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10
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Shokry MM, Khalil IA, El-Kasapy A, Osman A, Mostafa A, Salah M, El-Sherbiny IM. Multifunctional prosthetic polyester-based hybrid mesh for repairing of abdominal wall hernias and defects. Carbohydr Polym 2019; 223:115027. [PMID: 31426976 DOI: 10.1016/j.carbpol.2019.115027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 06/19/2019] [Accepted: 06/24/2019] [Indexed: 01/17/2023]
Abstract
This study involves the design, development and evaluation of a new multifunctional prosthetic mesh for treatment of abdominal wall defects without complications. The developed prosthetic mesh is a hybrid platform of both synthetic and natural materials with its backbone consisting of a synthetic commercial polyester fabric (CPF) to provide the required mechanical integrity. The CPF mesh was coated by a natural biodegradable, biocompatible and antimicrobial layer of chitosan (CS) incorporating phenytoin (PH)-loaded pluronic nanomicelles for healing promotion, and ciprofloxacin (CPX)-alginate polyelectrolyte complex-based microparticles as antibacterial agent. The prosthetic mesh was optimized and evaluated in-vitro and in-vivo. The optimum PH-loaded micelles had particle size of 95.42 nm, polydispersity index of 0.41, zeta potential of -18 and entrapment efficiency of 89.4%, while the optimum CPX microcomplexes had particle size of 1292.0 nm, polydispersity index of 0.8, zeta potential of -20.1, complexation efficiency of 81.1%, and minimum inhibitory concentration of 0.25 μg/ml and 0.125 μg/ml against Staphylococcus aureus and Pseudomonas aeruginosa, respectively. In-vivo study on abdominal wall defect dog model was conducted, followed by implantation of the proposed prosthetic meshes. The developed mesh depicted an efficient healing with excellent biocompatibility, and could be an ideal and feasible alternative prosthesis with many advantages such as low cost, inertness, mechanical stability, pliability, low infection rate, limited modification by body tissues, sterilizability, non-carcinogenicity, limited inflammatory reaction, hypoallergenic as well as minimal complications.
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Affiliation(s)
- Mohamed M Shokry
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Islam A Khalil
- Nanomaterials & Nanomedicine Lab, Center of Material Science (CMS), Zewail City of Science and Technology, 6th of October, Giza, 12588, Egypt; Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6thof October, Giza, 12566, Egypt
| | - Abdelhaleem El-Kasapy
- Department of Surgery, Faculty of Veterinary Medicine, Benha University, Moshtohor, Egypt
| | - Ahmed Osman
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Ayman Mostafa
- Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mohamed Salah
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Ibrahim M El-Sherbiny
- Nanomaterials & Nanomedicine Lab, Center of Material Science (CMS), Zewail City of Science and Technology, 6th of October, Giza, 12588, Egypt.
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11
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Application of Permeation Enhancers in Oral Delivery of Macromolecules: An Update. Pharmaceutics 2019; 11:pharmaceutics11010041. [PMID: 30669434 PMCID: PMC6359609 DOI: 10.3390/pharmaceutics11010041] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/11/2019] [Accepted: 01/14/2019] [Indexed: 12/29/2022] Open
Abstract
The application of permeation enhancers (PEs) to improve transport of poorly absorbed active pharmaceutical ingredients across the intestinal epithelium is a widely tested approach. Several hundred compounds have been shown to alter the epithelial barrier, and although the research emphasis has broadened to encompass a role for nanoparticle approaches, PEs represent a key constituent of conventional oral formulations that have progressed to clinical testing. In this review, we highlight promising PEs in early development, summarize the current state of the art, and highlight challenges to the translation of PE-based delivery systems into safe and effective oral dosage forms for patients.
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12
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Zaichik S, Steinbring C, Menzel C, Knabl L, Orth-Höller D, Ellemunter H, Niedermayr K, Bernkop-Schnürch A. Development of self-emulsifying drug delivery systems (SEDDS) for ciprofloxacin with improved mucus permeating properties. Int J Pharm 2018; 547:282-290. [DOI: 10.1016/j.ijpharm.2018.06.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/30/2018] [Accepted: 06/03/2018] [Indexed: 12/11/2022]
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13
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Lim LM, Tran TT, Cheow WS, Hadinoto K. Re-evaluating the presumed superiority of amorphous nanoparticles over amorphous microscale solid dispersion in solubility enhancement of poorly soluble drugs. Eur J Pharm Sci 2017; 109:455-463. [DOI: 10.1016/j.ejps.2017.09.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/01/2017] [Accepted: 09/02/2017] [Indexed: 12/25/2022]
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Ciprofloxacin-loaded lipid-core nanocapsules as mucus penetrating drug delivery system intended for the treatment of bacterial infections in cystic fibrosis. Int J Pharm 2017; 527:92-102. [PMID: 28499793 DOI: 10.1016/j.ijpharm.2017.05.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 05/04/2017] [Accepted: 05/05/2017] [Indexed: 11/22/2022]
Abstract
Treatment of bacterial airway infections is essential for cystic fibrosis therapy. However, effectiveness of antibacterial treatment is limited as bacteria inside the mucus are protected from antibiotics and immune response. To overcome this biological barrier, ciprofloxacin was loaded into lipid-core nanocapsules (LNC) for high mucus permeability, sustained release and antibacterial activity. Ciprofloxacin-loaded LNC with a mean size of 180nm showed a by 50% increased drug permeation through mucus. In bacterial growth assays, the drug in the LNC had similar minimum inhibitory concentrations as the free drug in P. aeruginosa and S. aureus. Interestingly, formation of biofilm-like aggregates, which were observed for S. aureus treated with free ciprofloxacin, was avoided by exposure to LNC. With the combined advantages over the non-encapsulated drug, ciprofloxacin-loaded LNC represent a promising drug delivery system with the prospect of an improved antibiotic therapy in cystic fibrosis.
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Günday Türeli N, Torge A, Juntke J, Schwarz BC, Schneider-Daum N, Türeli AE, Lehr CM, Schneider M. Ciprofloxacin-loaded PLGA nanoparticles against cystic fibrosis P. aeruginosa lung infections. Eur J Pharm Biopharm 2017; 117:363-371. [PMID: 28476373 DOI: 10.1016/j.ejpb.2017.04.032] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 04/09/2017] [Accepted: 04/12/2017] [Indexed: 12/28/2022]
Abstract
Current pulmonary treatments against Pseudomonas aeruginosa infections in cystic fibrosis (CF) lung suffer from deactivation of the drug and immobilization in thick and viscous biofilm/mucus blend, along with the general antibiotic resistance. Administration of nanoparticles (NPs) with high antibiotic load capable of penetrating the tight mesh of biofilm/mucus can be an advent to overcome the treatment bottlenecks. Biodegradable and biocompatible polymer nanoparticles efficiently loaded with ciprofloxacin complex offer a solution for emerging treatment strategies. NPs were prepared under controlled conditions by utilizing MicroJet Reactor (MJR) to yield a particle size of 190.4±28.6nm with 0.089 PDI. Encapsulation efficiency of the drug was 79% resulting in a loading of 14%. Release was determined to be controlled and medium-independent in PBS, PBS+0.2% Tween 80 and simulated lung fluid. Cytotoxicity assays with Calu-3 cells and CF bronchial epithelial cells (CFBE41o-) indicated that complex-loaded PLGA NPs were non-toxic at concentrations ≫ MICcipro against lab strains of the bacteria. Antibacterial activity tests revealed enhanced activity when applied as nanoparticles. NPs' colloidal stability in mucus was proven. Notably, a decrease in mucus turbidity was observed upon incubation with NPs. Herewith, ciprofloxacin complex-loaded PLGA NPs are introduced as promising pulmonary nano drug delivery systems against P.aeruginosa infections in CF lung.
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Affiliation(s)
- Nazende Günday Türeli
- MJR PharmJet GmbH, Industriestr. 1B, 66802 Überherrn, Germany; Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, 66123 Saarbrücken, Germany
| | - Afra Torge
- Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, 66123 Saarbrücken, Germany
| | - Jenny Juntke
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, Saarbrücken, Germany
| | - Bianca C Schwarz
- Pferdeklinik Altforweiler, Raiffeisenstraβe 100, 66802 Überherrn, Germany
| | - Nicole Schneider-Daum
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, Saarbrücken, Germany
| | | | - Claus-Michael Lehr
- Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, 66123 Saarbrücken, Germany; Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University, Saarbrücken, Germany
| | - Marc Schneider
- Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, 66123 Saarbrücken, Germany.
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16
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Günday Türeli N, Türeli AE, Schneider M. Optimization of ciprofloxacin complex loaded PLGA nanoparticles for pulmonary treatment of cystic fibrosis infections: Design of experiments approach. Int J Pharm 2016; 515:343-351. [PMID: 27744035 DOI: 10.1016/j.ijpharm.2016.10.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 09/29/2016] [Accepted: 10/11/2016] [Indexed: 01/31/2023]
Abstract
Design of Experiments (DoE) is a powerful tool for systematic evaluation of process parameters' effect on nanoparticle (NP) quality with minimum number of experiments. DoE was employed for optimization of ciprofloxacin loaded PLGA NPs for pulmonary delivery against Pseudomonas aeruginosa infections in cystic fibrosis (CF) lungs. Since the biofilm produced by bacteria was shown to be a complicated 3D barrier with heterogeneous meshes ranging from 100nm to 500nm, nanoformulations small enough to travel through those channels were assigned as target quality. Nanoprecipitation was realized utilizing MicroJet Reactor (MJR) technology based on impinging jets principle. Effect of MJR parameters flow rate, temperature and gas pressure on particle size and PDI was investigated using Box-Behnken design. The relationship between process parameters and particle quality was demonstrated by constructed fit functions (R2=0.9934 p<0.0001 and R2=0.9983 p<0.0001, for particle size and PDI, respectively). Prepared nanoformulations varied between 145.2 and 979.8nm with PDI ranging from 0.050 to 1.00 and showed encapsulation efficiencies >65%. Response surface plots provided experimental data-based understanding of MJR parameters' effect, thus NP quality. Presented work enables ciprofloxacin loaded PLGA nanoparticle preparations with pre-defined quality to fulfill the requirements of local drug delivery under CF disease conditions.
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Affiliation(s)
- Nazende Günday Türeli
- MJR PharmJet GmbH, Industriestr. 1B, 66802 Überherrn, Germany; Biopharmaceutics and Pharmaceutical Technology, Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany.
| | | | - Marc Schneider
- Biopharmaceutics and Pharmaceutical Technology, Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
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