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Alsa'd AA, Greene MK, Tayyem M, Elmore B, Abed A, Burden RE, Gilmore BF, Scott CJ, Burrows JF. Optimising intracellular delivery of antibiotic loaded PLGA nanoparticles to macrophages. Int J Pharm 2024; 664:124567. [PMID: 39127173 DOI: 10.1016/j.ijpharm.2024.124567] [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: 03/30/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
Bacteria can evade antimicrobial therapy by hiding inside host cells such as macrophages. Here we examine the ability of PLGA nanoparticles to deliver antibiotics to intracellular bacteria, specifically focusing upon the impact of nanoparticle size. Different sized Rhodamine-B conjugated PLGA nanoparticles were synthesized and uptake examined in two macrophage cell lines, as well as different epithelial cells, to determine the optimal properties for macrophage uptake. These studies demonstrate macrophages display a consistent increase in uptake with increased PLGA nanoparticle diameter. In a bacteria-macrophage co-culture model, we then examined the efficacy of different sized antibiotic-loaded PLGA nanoparticles against intracellular infections with K. pneumoniae and S. aureus. Increasing the size of antibiotic-loaded PLGA nanoparticles significantly increased their potency against intracellular K. pneumoniae. However, this was not observed for S. aureus, potentially due to the observation these nanoparticles failed to access the compartment in which S. aureus reside. This work demonstrates for the first time that increasing the size of antibiotic-loaded PLGA nanoparticles can significantly enhance antimicrobial efficacy against K. pneumoniae intracellular macrophage infections. However, our S. aureus studies indicate this is not a 'one size fits all' approach for all intracellular infections.
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Affiliation(s)
- Alhareth A Alsa'd
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; Pharmacological and Diagnostic Research Centre, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, Jordan
| | - Michelle K Greene
- Patrick G Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7AE, UK
| | - May Tayyem
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK; Faculty of Pharmacy, Middle East University, Airport Road, Amman 11831, Jordan
| | - Bronagh Elmore
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Anas Abed
- Pharmacological and Diagnostic Research Centre, Faculty of Pharmacy, Al-Ahliyya Amman University, Amman, Jordan
| | - Roberta E Burden
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Brendan F Gilmore
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Christopher J Scott
- Patrick G Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7AE, UK
| | - James F Burrows
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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2
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Ghawanmeh AA. Polymeric nanoparticles delivery circumvents bacterial resistance to ciprofloxacin. Daru 2024; 32:455-459. [PMID: 38097860 PMCID: PMC11087412 DOI: 10.1007/s40199-023-00498-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 12/05/2023] [Indexed: 05/12/2024] Open
Abstract
OBJECTIVE The efficient inhibition of bacteria and their by-products from infected root canals is hampered by the limitations of traditional root canal disinfection strategies, bacterial resistance to antibiotic drugs, and regenerative endodontics. Polymeric nanoparticles nanocarrier for controlling antibiotic drug delivery were used to overcome the limitations encountered in endodontics treatment. BACKGROUND Several polymeric nanoparticles have been used for the delivery of ciprofloxacin drug. The application of poly (ethylene glycol) methyl ether-block-poly(lactide-co-glycolide) (PEG-PLGA) nanoparticles has highlighted the clean and safe delivery of ciprofloxacin (CIP) hydrophilic drug for endodontics treatment. PEG/PLGA was prepared using the solid/oil/water method and the CIP was loaded into polymeric nanoparticles via an ion pairing agent. RESULTS The CIP-loaded PEG-PLGA nanoparticles have a spherical shape with a 120 ± 0.43 nm size, the CIP encapsulating efficiency was 63.26 ± 9.24% with a loading content of 7.75 ± 1.13%, and sustained release was achieved over 168 h which followed Higuchi model with a non-Fickian mechanism. Moreover, CIP-loaded PEG-PLGA had low cytotoxicity to the stem cells of the apical papilla. CONCLUSION The results conclude invigorating future perspectives of polymeric nanoparticles for a wide range of drug delivery for various disease treatments. It's anticipated that these polymeric nanoparticles may divert new expectations in the future for topical antibiotic drug delivery with discrete intracellular medicament, and a safe and clean environment.
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Affiliation(s)
- Abdullah A Ghawanmeh
- Department of Pharmaceutical Technology and Cosmetics, Faculty of Pharmacy, Middle East University, Amman, Jordan.
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3
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Zhou Y, Guo L, Dai G, Li B, Bai Y, Wang W, Chen S, Zhang J. An Overview of Polymeric Nanoplatforms to Deliver Veterinary Antimicrobials. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:341. [PMID: 38392714 PMCID: PMC10893358 DOI: 10.3390/nano14040341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 02/01/2024] [Accepted: 02/03/2024] [Indexed: 02/24/2024]
Abstract
There is an urgent need to find new solutions for the global dilemma of increasing antibiotic resistance in humans and animals. Modifying the performance of existing antibiotics using the nanocarrier drug delivery system (DDS) is a good option considering economic costs, labor costs, and time investment compared to the development of new antibiotics. Numerous studies on nanomedicine carriers that can be used for humans are available in the literature, but relatively few studies have been reported specifically for veterinary pharmaceutical products. Polymer-based nano-DDS are becoming a research hotspot in the pharmaceutical industry owing to their advantages, such as stability and modifiability. This review presents current research progress on polymer-based nanodelivery systems for veterinary antimicrobial drugs, focusing on the role of polymeric materials in enhancing drug performance. The use of polymer-based nanoformulations improves treatment compliance in livestock and companion animals, thereby reducing the workload of managers. Although promising advances have been made, many obstacles remain to be addressed before nanoformulations can be used in a clinical setting. Some crucial issues currently facing this field, including toxicity, quality control, and mass production, are discussed in this review. With the continuous optimization of nanotechnology, polymer-based DDS has shown its potential in reducing antibiotic resistance to veterinary medicines.
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Affiliation(s)
- Yaxin Zhou
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050, China; (Y.Z.); (G.D.); (B.L.); (Y.B.); (W.W.)
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou 730050, China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Lihua Guo
- Shenniu Pharmaceutical Co., Ltd., Dezhou 253034, China;
| | - Guonian Dai
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050, China; (Y.Z.); (G.D.); (B.L.); (Y.B.); (W.W.)
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou 730050, China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Bing Li
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050, China; (Y.Z.); (G.D.); (B.L.); (Y.B.); (W.W.)
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou 730050, China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Yubin Bai
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050, China; (Y.Z.); (G.D.); (B.L.); (Y.B.); (W.W.)
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou 730050, China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Weiwei Wang
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050, China; (Y.Z.); (G.D.); (B.L.); (Y.B.); (W.W.)
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou 730050, China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
| | - Shulin Chen
- College of Veterinary Medicine, Northwest A & F University, Yangling 712100, China
| | - Jiyu Zhang
- Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050, China; (Y.Z.); (G.D.); (B.L.); (Y.B.); (W.W.)
- Key Laboratory of Veterinary Pharmaceutical Development, Ministry of Agriculture, Lanzhou 730050, China
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
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Hwang EJ, Jeong YIL, Lee KJ, Yu YB, Ohk SH, Lee SY. Anticancer Activity of Astaxanthin-Incorporated Chitosan Nanoparticles. Molecules 2024; 29:529. [PMID: 38276606 PMCID: PMC10818874 DOI: 10.3390/molecules29020529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/08/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Astaxanthin (AST)-encapsulated nanoparticles were fabricated using glycol chitosan (Chito) through electrostatic interaction (abbreviated as ChitoAST) to solve the aqueous solubility of astaxanthin and improve its biological activity. AST was dissolved in organic solvents and then mixed with chitosan solution, followed by a dialysis procedure. All formulations of ChitoAST nanoparticles showed small diameters (less than 400 nm) with monomodal distributions. Analysis with Fourier transform infrared (FT-IR) spectroscopy confirmed the specific peaks of AST and Chito. Furthermore, ChitoAST nanoparticles were formed through electrostatic interactions between Chito and AST. In addition, ChitoAST nanoparticles showed superior antioxidant activity, as good as AST itself; the half maximal radical scavenging concentrations (RC50) of AST and ChitoAST nanoparticles were 11.8 and 29.3 µg/mL, respectively. In vitro, AST and ChitoAST nanoparticles at 10 and 20 µg/mL properly inhibited the production of intracellular reactive oxygen species (ROSs), nitric oxide (NO), and inducible nitric oxide synthase (iNOS). ChitoAST nanoparticles had no significant cytotoxicity against RAW264.7 cells or B16F10 melanoma cells, whereas AST and ChitoAST nanoparticles inhibited the growth of cancer cells. Furthermore, AST itself and ChitoAST nanoparticles (20 µg/mL) efficiently inhibited the migration of cancer cells in a wound healing assay. An in vivo study using mice and a pulmonary metastasis model showed that ChitoAST nanoparticles were efficiently delivered to a lung with B16F10 cell metastasis; i.e., fluorescence intensity in the lung was significantly higher than in other organs. We suggest that ChitoAST nanoparticles are promising candidates for antioxidative and anticancer therapies of B16F10 cells.
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Affiliation(s)
- Eun Ju Hwang
- Marine Bio Research Center, Chosun University, Wando 59146, Jeonnam, Republic of Korea;
| | - Young-IL Jeong
- Research Institute of Convergence of Biomedical Sciences, Pusan National University Yangsan Hospital, Yangsan 50612, Gyeongnam, Republic of Korea;
| | - Kyong-Je Lee
- Department of Prosthodontics, Chosun University Dental Hospital, Gwangju 61452, Republic of Korea;
| | - Young-Bob Yu
- Department of Paramedicine, Nambu University, Gwangju 62271, Republic of Korea;
| | - Seung-Ho Ohk
- Department of Oral Microbiology, Chonnam National University School of Dentistry, Gwangju 61452, Republic of Korea
| | - Sook-Young Lee
- Marine Bio Research Center, Chosun University, Wando 59146, Jeonnam, Republic of Korea;
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Liu L, Zhao N, Yang K, Liao H, Liu X, Wu Y, Wang Y, Peng X, Wu Y. Proteomic Analysis of Staphylococcus aureus Treated with ShangKeHuangShui. Biol Pharm Bull 2024; 47:292-302. [PMID: 38281773 DOI: 10.1248/bpb.b23-00471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Staphylococcus aureus (SAU) stands as the prevailing pathogen in post-traumatic infections, with the emergence of antibiotic resistance presenting formidable treatment hurdles. The pressing need is to explore novel antibiotics to address this challenge. ShangKeHuangShui (SKHS), a patented traditional Chinese herbal formula, has gained widespread use in averting post-traumatic infections, but its biological effects remain incomplete understanding. This study's primary objective was to delve into the antibacterial properties, potential antibacterial compounds within SKHS, and their associated molecular targets. In vitro SKHS antibacterial assays demonstrated that the minimum inhibitory concentration (MIC) was 8.625 mg/mL and the minimum bactericide concentration (MBC) was 17.25 mg/mL. Proteomic analysis based on tandem mass tag (TMT) showed significant changes in the expression level of 246 proteins in SKHS treated group compared to control group, with 79 proteins upregulated and 167 proteins downregulated (>1.5-fold, p < 0.05). Subsequently, thirteen target proteins related to various biological processes and multiple metabolic pathways were selected to conduct parallel reaction monitoring (PRM) and molecular docking screen. In protein tyrosine phosphatase PtpA (ptpA) docking screening, phellodendrine and obacunone can bind to ptpA with the binding energy of - 8.4 and - 8.3 kcal/mol, respectively. This suggests their potential impact on antibacterial activity by modulating the two-component system of SAU. The discovery lays a groundwork for future research endeavors for exploring new antibacterial candidates and elucidating specific active chemical components within SKHS that match target proteins. Further investigations are imperative to unveil the biological effects of these monomers and their potential synergistic actions.
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Affiliation(s)
- Lichu Liu
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine
| | - Na Zhao
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine
| | - Kuangyang Yang
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine
| | - Honghong Liao
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine
| | - Xiaofang Liu
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine
| | - Ying Wu
- Laboratory Medicine Center, Foshan Hospital of Traditional Chinese Medicine
| | - Yan Wang
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences
| | - Xiao Peng
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine
| | - Yuanyan Wu
- Institute of Orthopedics and Traumatology, Foshan Hospital of Traditional Chinese Medicine
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Biomaterial therapeutic strategies for treatment of bacterial lung infections. Biofilm 2023; 5:100111. [PMID: 36909663 PMCID: PMC9999167 DOI: 10.1016/j.bioflm.2023.100111] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 02/20/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023] Open
Abstract
Bacterial infections of the lung frequently occur as a secondary infection to many respiratory viral infections and conditions, including influenza, COVID-19, chronic obstructive pulmonary disease (COPD), and cystic fibrosis (CF). Currently, clinical standard treats bacterial infections of the lung with antibiotic drugs. However, the use of broad-spectrum antibiotics can disrupt host microbiomes, lead to patient discomfort, and current clinical settings face the constantly increasing threat of drug-resistant bacteria. Biofilms further obstruct effective treatment due to their protective matrix layer, which shields bacteria from both the host immune system and antimicrobial drugs and subsequently promotes drug resistance. Alternative antimicrobial agents, including bacteriophages and antimicrobial peptides, have been utilized to treat drug-resistant bacteria. However, these antimicrobial agents have significant limitations pertaining to their ability to arrive at infection sites without compromised function and ability to persist over an extended period to fully treat infections. Enhanced delivery strategies present great promise in addressing these issues by using micro/nanoparticle carriers that shield antimicrobial agents in transit and result in sustained release, enhancing subsequent therapeutic effect and can even be modulated to be multi-functional to further improve recovery following bacterial infection.
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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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Cytotoxic and Bactericidal Effects of Inhalable Ciprofloxacin-Loaded Poly(2-ethyl-2-oxazoline) Nanoparticles with Traces of Zinc Oxide. Int J Mol Sci 2023; 24:ijms24054532. [PMID: 36901963 PMCID: PMC10002581 DOI: 10.3390/ijms24054532] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/21/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
The bactericidal effects of inhalable ciprofloxacin (CIP) loaded-poly(2-ethyl-2-oxazoline) (PEtOx) nanoparticles (NPs) with traces of zinc oxide (ZnO) were investigated against clinical strains of the respiratory pathogens Staphylococcus aureus and Pseudomonas aeruginosa. CIP-loaded PEtOx NPs retained their bactericidal activity within the formulations compared to free CIP drugs against these two pathogens, and bactericidal effects were enhanced with the inclusion of ZnO. PEtOx polymer and ZnO NPs did not show bactericidal activity alone or in combination against these pathogens. The formulations were tested to determine the cytotoxic and proinflammatory effects on airway epithelial cells derived from healthy donors (NHBE), donors with chronic obstructive pulmonary disease (COPD, DHBE), and a cell line derived from adults with cystic fibrosis (CFBE41o-) and macrophages from healthy adult controls (HCs), and those with either COPD or CF. NHBE cells demonstrated maximum cell viability (66%) against CIP-loaded PEtOx NPs with the half maximal inhibitory concentration (IC50) value of 50.7 mg/mL. CIP-loaded PEtOx NPs were more toxic to epithelial cells from donors with respiratory diseases than NHBEs, with respective IC50 values of 0.103 mg/mL for DHBEs and 0.514 mg/mL for CFBE41o- cells. However, high concentrations of CIP-loaded PEtOx NPs were toxic to macrophages, with respective IC50 values of 0.002 mg/mL for HC macrophages and 0.021 mg/mL for CF-like macrophages. PEtOx NPs, ZnO NPs, and ZnO-PEtOx NPs with no drug were not cytotoxic to any cells investigated. The in vitro digestibility of PEtOx and its NPs was investigated in simulated lung fluid (SLF) (pH 7.4). The analysed samples were characterized using Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), and UV-Vis spectroscopy. Digestion of PEtOx NPs commenced one week following incubation and was completely digested after four weeks; however, the original PEtOx was not digested after six weeks of incubation. The outcome of this study revealed that PEtOx polymer could be considered an efficient drug delivery carrier in respiratory linings, and CIP-loaded PEtOx NPs with traces of ZnO could be a promising addition to inhalable treatments against resistant bacteria with reduced toxicity.
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Abstract
Antibiotic medications have been found to hinder the success of regenerative endodontic treatment due to the rapid degradation of the drug, and the acidic nature of ciprofloxacin (CIP) can be harmful to stem cells of the apical papilla (SCAPs), the cells responsible for regeneration. In this study, a nanocarrier system was used for controlled drug release for longer drug activity and less cytotoxicity to the cells. CIP was loaded in poly (ethylene glycol) methyl ether-block-poly (lactide-co-glycolide) (PEG-PLGA) nanoparticles (NPs) with an ion-pairing agent. The NPs demonstrated a monodispersed spherical morphology with a mean diameter of 120.7 ± 0.43 nm. The encapsulation efficiency of the CIP-loaded PEG-PLGA NPs was 63.26 ± 9.24%, and the loading content was 7.75 ± 1.13%. Sustained CIP release was achieved over 168 h and confirmed with theoretical kinetic models. Enhanced NP bactericidal activity was observed against Enterococcus faecalis. Additionally, CIP-loaded PEG-PLGA NPs had a low cytotoxic effect on SCAPs. These results suggest the use of a nanocarrier system to prolong the antibiotic activity, provide a sterile environment, and prevent reinfection by the bacteria remaining in the root canal during regenerative endodontic treatment.
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Purohit D, Jalwal P, Manchanda D, Saini S, Verma R, Kaushik D, Mittal V, Kumar M, Bhattacharya T, Rahman MH, Dutt R, Pandey P. Nanocapsules: An Emerging Drug Delivery System. RECENT PATENTS ON NANOTECHNOLOGY 2023; 17:190-207. [PMID: 35142273 DOI: 10.2174/1872210516666220210113256] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/22/2021] [Accepted: 11/26/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Controlled drug release and site-specific delivery of drugs make nanocapsules the most approbative drug delivery system for various kinds of drugs, bioactive, protein, and peptide compounds. Nanocapsules (NCs) are spherical shape microscopic shells consisting of a core (solid or liquid) in which the drug is positioned in a cavity enclosed by a distinctive polymeric membrane. OBJECTIVES The main objective of the present patent study is to elaborate on various formulation techniques and methods of nanocapsules (NCs). The review also spotlights various biomedical applications as well as on the patents of NCs to date. METHODS The review was extracted from the searches performed using various search engines such as PubMed, Google Patents, Medline, Google Scholars, etc. In order to emphasize the importance of NCs, some published patents of NCs have also been reported in the review. RESULTS NCs are tiny magical shells having incredible reproducibility. Various techniques can be used to formulate NCs. The pharmaceutical performance of the formulated NCs can be judged by evaluating their shape, size, entrapment efficiency, loading capacity, etc., using different analytical techniques. Their main applications are found in the field of agrochemicals, genetic manipulation, cosmetics, hygiene items, strategic distribution of drugs to tumors, nanocapsule bandages to combat infection, and radiotherapy. CONCLUSION In the present review, our team made a deliberate effort to summarize the recent advances in the field of NCs and focus on new patents related to the implementation of NCs delivery systems in the area of some life-threatening disorders like diabetes, cancer, and cardiovascular diseases.
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Affiliation(s)
- Deepika Purohit
- Department of Pharmaceutical Sciences, Indira Gandhi University, Meerpur, Rewari, 123401, India
| | - Pawan Jalwal
- Shri Baba Mastnath Institute of Pharmaceutical Sciences and Research, Baba Mastnath University, Rohtak, 124001, India
| | - Deeksha Manchanda
- Department of Pharmaceutical Sciences, Indira Gandhi University, Meerpur, Rewari, 123401, India
| | - Sapna Saini
- PDM School of Pharmacy, Karsindhu, Jind, 126102, India
| | - Ravinder Verma
- Department of Pharmacy, School of Medical and Allied Sciences, G.D. Goenka University, Gurugram, 122103, India
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Vineet Mittal
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, 124001, India
| | - Manish Kumar
- MM College of Pharmacy, Maharishi Markandeshwar (Deemed to be University) Mullana, Ambala, 133207, India
| | - Tanima Bhattacharya
- Innovation, Incubation and Industry (i-cube) Laboratory, Techno India NJR Institute of Technology, Udaipur, 313003, Rajasthan, India
| | - Md Habibur Rahman
- Department of Pharmacy, Southeast University, Banani, Dhaka, 1213, Bangladesh
| | - Rohit Dutt
- Department of Pharmacy, School of Medical and Allied Sciences, G.D. Goenka University, Gurugram, 122103, India
| | - Parijat Pandey
- Department of Pharmaceutical Sciences, Gurugram University, Gurugram, 122018, India
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Kanth S, Malgar Puttaiahgowda Y, Gupta S, T S. Recent advancements and perspective of ciprofloxacin-based antimicrobial polymers. JOURNAL OF BIOMATERIALS SCIENCE, POLYMER EDITION 2022; 34:918-949. [PMID: 36346071 DOI: 10.1080/09205063.2022.2145872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In recent years, microbial pathogens, which are major sources of infections, have become a widespread concern across the world. The number of deaths caused by infectious diseases is continually rising, according to World Health Organization records. Antimicrobial resistance, particularly resistance to several drugs, is steadily growing in percentages of organisms. Ciprofloxacin is a second-generation fluoroquinolone with significant antimicrobial activity and pharmacokinetic characteristics. According to studies, many bacteria are resistant to the antibiotic ciprofloxacin. In this article, we look into polymers as ciprofloxacin macromolecular carriers with a wide range of antibacterial activity. We also discuss the latter form of coupling, in which ciprofloxacin and polymers are covalently bonded. This article also discusses the use of antimicrobial polymers in combination with ciprofloxacin in a various sectors. The current review article provides an overview of publications in the last five years on polymer loaded or modified with ciprofloxacin having applications in numerous sectors.
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Affiliation(s)
- Shreya Kanth
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Yashoda Malgar Puttaiahgowda
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sonali Gupta
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Swathi T
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
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Han L, Liu XW, Zang T, Ren H, Liang DS, Bai SC, Li C, Liao XP, Liu YH, Zhang C, Sun J. H2S responsive PEGylated poly (lipoic acid) with ciprofloxacin for targeted therapy of Salmonella. J Control Release 2022; 351:896-906. [DOI: 10.1016/j.jconrel.2022.09.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 09/25/2022] [Accepted: 09/28/2022] [Indexed: 11/30/2022]
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Soliman NM, Shakeel F, Haq N, Alanazi FK, Alshehri S, Bayomi M, Alenazi ASM, Alsarra IA. Development and Optimization of Ciprofloxacin HCl-Loaded Chitosan Nanoparticles Using Box–Behnken Experimental Design. Molecules 2022; 27:molecules27144468. [PMID: 35889340 PMCID: PMC9321140 DOI: 10.3390/molecules27144468] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/07/2022] [Accepted: 07/07/2022] [Indexed: 11/16/2022] Open
Abstract
Various chitosan (CS)-based nanoparticles (CS-NPs) of ciprofloxacin hydrochloride (CHCl) have been investigated for therapeutic delivery and to enhance antimicrobial efficacy. However, the Box–Behnken design (BBD)-supported statistical optimization of NPs of CHCl has not been performed in the literature. As a result, the goal of this study was to look into the key interactions and quadratic impacts of formulation variables on the performance of CHCl-CS-NPs in a systematic way. To optimize CHCl-loaded CS-NPs generated by the ionic gelation process, the response surface methodology (RSM) was used. The BBD was used with three factors on three levels and three replicas at the central point. Tripolyphosphate, CS concentrations, and ultrasonication energy were chosen as independent variables after preliminary screening. Particle size (PS), polydispersity index (PDI), zeta potential (ZP), encapsulation efficiency (EE), and in vitro release were the dependent factors (responses). Prepared NPs were found in the PS range of 198–304 nm with a ZP of 27–42 mV. EE and drug release were in the range of 23–45% and 36–61%, respectively. All of the responses were optimized at the same time using a desirability function based on Design Expert® modeling and a desirability factor of 95%. The minimum inhibitory concentration (MIC) of the improved formula against two bacterial strains, Pseudomonas aeruginosa and Staphylococcus aureus, was determined. The MIC of the optimized NPs was found to be decreased 4-fold compared with pure CHCl. The predicted and observed values for the optimized formulation were nearly identical. The BBD aided in a better understanding of the intrinsic relationship between formulation variables and responses, as well as the optimization of CHCl-loaded CS-NPs in a time- and labor-efficient manner.
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Antibacterial Activity of Antibiotic-Releasing Polydopamine-Coated Nephrite Composites for Application in Drug-Eluting Contact Lens. MATERIALS 2022; 15:ma15144823. [PMID: 35888290 PMCID: PMC9315558 DOI: 10.3390/ma15144823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 11/17/2022]
Abstract
The aim of this study is to prepare ciprofloxacin (CIP) or levofloxacin (LEVO)-incorporated and polydopamine (PDA)-coated nephrite composites for application in drug-eluting contact lenses. PDA was coated onto the surface of nephrite to improve antibacterial activity and to payload antibiotics. CIP or LEVO was incorporated into the PDA layer on the surface of nephrite. Furthermore, CIP-incorporated/PDA-coated nephrite composites were embedded into the contact lenses. PDA-coated nephrite composites showed dull and smooth surfaces according to the dopamine concentration while nephrite itself has sharp surface morphology. CIP- or LEVO-loaded/PDA-coated nephrite composites also have dull and smooth surface properties. Nano and/or sub-micron clusters were observed in field emission-scanning electron microscopy (FE-SEM) observation, indicating that PDA nanoparticles were accumulated and coated onto the surface of nephrite. Furthermore, CIP- or LEVO-incorporated/PDA-coated nephrite composites showed the sustained release of CIP or LEVO in vitro and these properties contributed to the enhanced antibacterial activity of composites compared to nephrite or PDA-coated nephrite composites. CIP-incorporated/PDA-coated nephrite composites were embedded in the contact lenses and then, in an antibacterial study, they showed higher bactericidal effect against Staphylococcus aureus (S. aureus) compared to nephrite itself or PDA-coated nephrite composites. We suggest that CIP- or LEVO-loaded/PDA-coated nephrite composite-embedded contact lenses are a promising candidate for therapeutic application.
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Sabuj MZR, Dargaville TR, Nissen L, Islam N. Inhaled ciprofloxacin-loaded poly(2-ethyl-2-oxazoline) nanoparticles from dry powder inhaler formulation for the potential treatment of lower respiratory tract infections. PLoS One 2021; 16:e0261720. [PMID: 34941946 PMCID: PMC8699692 DOI: 10.1371/journal.pone.0261720] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/07/2021] [Indexed: 12/04/2022] Open
Abstract
Lower respiratory tract infections (LRTIs) are one of the fatal diseases of the lungs that have severe impacts on public health and the global economy. The currently available antibiotics administered orally for the treatment of LRTIs need high doses with frequent administration and cause dose-related adverse effects. To overcome this problem, we investigated the development of ciprofloxacin (CIP) loaded poly(2-ethyl-2-oxazoline) (PEtOx) nanoparticles (NPs) for potential pulmonary delivery from dry powder inhaler (DPI) formulations against LRTIs. NPs were prepared using a straightforward co-assembly reaction carried out by the intermolecular hydrogen bonding among PEtOx, tannic acid (TA), and CIP. The prepared NPs were characterized by scanning electron microscopy (SEM), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction analysis (PXRD), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). The CIP was determined by validated HPLC and UV spectrophotometry methods. The CIP loading into the PEtOx was between 21-67% and increased loading was observed with the increasing concentration of CIP. The NP sizes of PEtOx with or without drug loading were between 196-350 nm and increased with increasing drug loading. The in vitro CIP release showed the maximum cumulative release of about 78% in 168 h with a burst release of 50% in the first 12 h. The kinetics of CIP release from NPs followed non-Fickian or anomalous transport thus suggesting the drug release was regulated by both diffusion and polymer degradation. The in vitro aerosolization study carried out using a Twin Stage Impinger (TSI) at 60 L/min air flow showed the fine particle fraction (FPF) between 34.4% and 40.8%. The FPF was increased with increased drug loading. The outcome of this study revealed the potential of the polymer PEtOx as a carrier for developing CIP-loaded PEtOx NPs as DPI formulation for pulmonary delivery against LRTIs.
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Affiliation(s)
- Mohammad Zaidur Rahman Sabuj
- Faculty of Health, Pharmacy Discipline, School of Clinical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Tim R. Dargaville
- Faculty of Science, School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Lisa Nissen
- Faculty of Health, Pharmacy Discipline, School of Clinical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Nazrul Islam
- Faculty of Health, Pharmacy Discipline, School of Clinical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
- Centre for Immunology and Infection Control (CIIC), Queensland University of Technology, Brisbane, Queensland, Australia
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16
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Song J, Kook MS, Kim BH, Jeong YIL, Oh KJ. Ciprofloxacin-Releasing ROS-Sensitive Nanoparticles Composed of Poly(Ethylene Glycol)/Poly(D,L-lactide-co-glycolide) for Antibacterial Treatment. MATERIALS 2021; 14:ma14154125. [PMID: 34361319 PMCID: PMC8348395 DOI: 10.3390/ma14154125] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 12/11/2022]
Abstract
Since urinary tract infections (UTIs) are closely associated with oxidative stress, we developed ROS-sensitive nanoparticles for ciprofloxacin (CIP) delivery for inhibition of UTI. Poly(D,L-lactide-co-glycolide) (PLGA)- selenocystamine (PLGA-selenocystamine) conjugates were attached to methoxypoly(ethylene glycol) (PEG) tetraacid (TA) (TA-PEG) conjugates to produce a copolymer (abbreviated as LGseseTAPEG). Selenocystamine linkages were introduced between PLGA and TA to endow reactive oxygen species (ROS) sensitivity to nanoparticles. CIP-incorporated nanoparticles of LGseseTAPEG copolymer were fabricated by W/O/W/W emulsion method. CIP-incorporated nanoparticles responded to H2O2 and then their morphologies were disintegrated by incubation with H2O2. Furthermore, particle size distribution of nanoparticles was changed from mono-modal distribution pattern to multi-modal distribution pattern by addition of H2O2. CIP release from nanoparticles of LGseseTAPEG copolymer was faster in the presence of H2O2 than in the absence of it. In antibacterial study using Escherichia coli (E. coli), free CIP and free CIP plus empty nanoparticles showed dose-dependent inhibitory effect against growth of bacteria while CIP-incorporated nanoparticles have less antibacterial activity compared to free CIP. These results were due to that CIP-incorporated nanoparticles have sustained release properties. When free CIP or CIP-incorporated nanoparticles were introduced into dialysis membrane to mimic in vivo situation, CIP-incorporated nanoparticles showed superior antibacterial activity compared to free CIP. At cell viability assay, nanoparticles of LGseseTAPEG copolymer have no acute cytotoxicity against L929 mouse fibroblast cells and CCD986sk human skin fibroblast cells. We suggest LGseseTAPEG nanoparticles are a promising candidate for CIP delivery.
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Affiliation(s)
- Jaeik Song
- Department of Urology, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju 61469, Korea;
| | - Min-Suk Kook
- Department of Maxillofacial Surgery, School of Dentistry, Chonnam National University, Gwangju 61186, Korea;
| | - Byung-Hoon Kim
- Department of Dental Materials, School of Dentistry, Chosun University, Gwangju 61452, Korea; (B.-H.K.); (Y.-I.J.)
| | - Young-IL Jeong
- Department of Dental Materials, School of Dentistry, Chosun University, Gwangju 61452, Korea; (B.-H.K.); (Y.-I.J.)
| | - Kyung-Jin Oh
- Department of Urology, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju 61469, Korea;
- Correspondence: ; Tel.: +82-62-220-6704
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17
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Birk SE, Boisen A, Nielsen LH. Polymeric nano- and microparticulate drug delivery systems for treatment of biofilms. Adv Drug Deliv Rev 2021; 174:30-52. [PMID: 33845040 DOI: 10.1016/j.addr.2021.04.005] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/23/2021] [Accepted: 04/06/2021] [Indexed: 12/11/2022]
Abstract
Now-a-days healthcare systems face great challenges with antibiotic resistance and low efficacy of antibiotics when combating pathogenic bacteria and bacterial biofilms. Administration of an antibiotic in its free form is often ineffective due to lack of selectivity to the infectious site and breakdown of the antibiotic before it exerts its effect. Therefore, polymeric delivery systems, where the antibiotic is encapsulated into a formulation, have shown great promise, facilitating a high local drug concentration at the site of infection, a controlled drug release and less drug degradation. All this leads to improved therapeutic effects and fewer systemic side effects together with a lower risk of developing antibiotic resistance. Here, we review and provide a comprehensive overview of polymer-based nano- and microparticles as carriers for antimicrobial agents and their effect on eradicating bacterial biofilms. We have a main focus on polymeric particulates containing poly(lactic-co-glycolic acid), chitosan and polycaprolactone, but also strategies involving combinations of these polymers are included. Different production techniques are reviewed and important parameters for biofilm treatment are discussed such as drug loading capacity, control of drug release, influence of particle size and mobility in biofilms. Additionally, we reflect on other promising future strategies for combating biofilms such as lipid-polymer hybrid particles, enzymatic biofilm degradation, targeted/triggered antibiotic delivery and future alternatives to the conventional particles.
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18
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Verma V, Ryan KM, Padrela L. Production and isolation of pharmaceutical drug nanoparticles. Int J Pharm 2021; 603:120708. [PMID: 33992712 DOI: 10.1016/j.ijpharm.2021.120708] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 12/23/2022]
Abstract
Nanosizing of pharmaceutical drug particles is one of the most important drug delivery platforms approaches for the commercial development of poorly water-soluble drug molecules. Though nanosizing of drug particles has been proven to greatly enhance drugs dissolution rate and apparent solubility, nanosized materials have presented significant challenges for their formulation as solid dosage forms (e.g. tablets, capsules). This is due to the strong Van der Waals attraction forces between dry nanoparticles leading to aggregation, cohesion, and consequently poor flowability. In this review, the broad area of nanomedicines is overviewed with the primary focus on drug nanocrystals and the top-down and bottom-up methods used in their fabrication. The review also looks at how nanosuspensions of pharmaceutical drugs are generated and stabilised, followed by subsequent strategies for isolation of the nanoparticles. A perspective on the future outlook for drug nanocrystals is also presented.
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Affiliation(s)
- Vivek Verma
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Kevin M Ryan
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Luis Padrela
- SSPC Research Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland.
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19
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Le H, Arnoult C, Dé E, Schapman D, Galas L, Le Cerf D, Karakasyan C. Antibody-Conjugated Nanocarriers for Targeted Antibiotic Delivery: Application in the Treatment of Bacterial Biofilms. Biomacromolecules 2021; 22:1639-1653. [PMID: 33709706 DOI: 10.1021/acs.biomac.1c00082] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Conventional antibiotic treatment is in most cases insufficient to eradicate biofilm-related infections, resulting in high risk of treatment failure and recurrent infections. Recent studies have shown that novel methods of antibiotic delivery can improve clinical outcomes and reduce the emergence of antibiotic resistance. The objectives of this work were to develop and evaluate a targeting nanocarrier system that enables effective delivery of antimicrobial drugs to Staphylococcus aureus, a commonly virulent human pathogen. For this purpose, we first prepared a formulation of polymeric nanoparticles (NPs) suitable for encapsulation and sustained release of antibiotics. A specific antibody against S. aureus was used as a targeting ligand and was covalently immobilized onto the surface of nanoparticulate materials. It was demonstrated that the targeting NPs preferentially bound S. aureus cells and presented an elevated accumulation in the S. aureus biofilm. Compared to free-form antibiotic, the antibiotic-loaded targeting NPs significantly enhanced in vitro bactericidal activity against S. aureus both in planktonic and biofilm forms. Using a mouse infection model, we observed improved therapeutic efficacy of these antibiotic-loaded NPs after a single intravenous administration. Taken together, our studies show that the targeting nanoparticulate system could be a promising strategy to enhance the biodistribution of antibiotics and thereby improve their efficacy.
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Affiliation(s)
- Hung Le
- Normandie Université, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Christophe Arnoult
- Normandie Université, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Emmanuelle Dé
- Normandie Université, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Damien Schapman
- Normandie Université, UNIROUEN, INSERM, PRIMACEN, 76000 Rouen, France
| | - Ludovic Galas
- Normandie Université, UNIROUEN, INSERM, PRIMACEN, 76000 Rouen, France
| | - Didier Le Cerf
- Normandie Université, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
| | - Carole Karakasyan
- Normandie Université, UNIROUEN, INSA Rouen, CNRS, PBS, 76000 Rouen, France
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20
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Liu Y, Bai X, A L. In vitro and in vivo evaluation of a ciprofloxacin delivery system based on poly(DLLA-co-GA-co-CL) for treatment of chronic osteomyelitis. J Appl Biomater Funct Mater 2020; 18:2280800020975727. [PMID: 33270476 DOI: 10.1177/2280800020975727] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Chronic osteomyelitis causes serious injury to patients. Antibiotic delivery systems based on poly(lactide-co-glycolide) (PLGA) have great potential for treatment of chronic osteomyelitis. However, PLGA has a glass-transition temperature that is higher than physiological temperatures, resulting in a lack of flexibility for implantation into the bone marrow cavity. As an alternative, poly(d, l-lactide-co-glycolide-co-ε-caprolactone) (PLGC) presents good flexibility due to the introduction of poly(ε-caprolactone) segments. To develop a new strategy for treatment of chronic osteomyelitis, a ciprofloxacin delivery system was prepared using PLGC as carriers, the antibacterial effects of which were evaluated both in vivo and in vitro. The in vitro release behavior showed that the average release reached 268.5 μg/days on day 33, with a cumulative release rate of 56.01%. A bacteriostatic ring, with a diameter of 26.83 ± 0.83 mm, was produced by ciprofloxacin against Staphylococcus aureus after 30 days of release via our ciprofloxacin-PLGC system. After 4 weeks of treatment in vivo, chronic-osteomyelitis-model rats had a bodyweight of 385.83 ± 17.23 g and a normal white-blood-cell count, as well as a lower number of bacterial colonies per gram of bone tissue of (10.6 ± 3.0) × 101 CFU/g. Furthermore, no inflammatory cells were observed via hematoxylin-and-eosin staining, and normal bone structure was observed via X-ray. Taken together, our findings indicate that our novel ciprofloxacin-PLGC system yielded noteworthy antibacterial effects both in vitro and in vivo, suggesting that it may be useful for treating patients with chronic osteomyelitis.
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Affiliation(s)
- Yixiu Liu
- Department of Orthopaedics, The Central Hospital Affiliated to Shenyang Medical College, Shenyang, China
| | - Xizhuang Bai
- Department of Sports Medicine and Joint Surgery, The People's Hospital of Liaoning Province, Shenyang, China
| | - Liang A
- Department of Orthopaedics, The Central Hospital Affiliated to Shenyang Medical College, Shenyang, China
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21
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Arafa MG, Mousa HA, Afifi NN. Preparation of PLGA-chitosan based nanocarriers for enhancing antibacterial effect of ciprofloxacin in root canal infection. Drug Deliv 2020; 27:26-39. [PMID: 31833443 PMCID: PMC6968620 DOI: 10.1080/10717544.2019.1701140] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/28/2019] [Accepted: 12/02/2019] [Indexed: 01/21/2023] Open
Abstract
The aim of this study is to prepare and evaluate the antibacterial and antibiofilm activity of ciprofloxacin (CIP) loaded PLGA nanoparticles (F2) and CIP-PLGA nanoparticles coated with chitosan (F3) versus ciprofloxacin solution (Fl) as a control on Enterococcus faecalis. F2 was prepared using double emulsion evaporation technique then coated with chitosan (F3). The prepared F2 and F3 were evaluated for size, surface charge, encapsulation efficiency, morphology and in vitro release. F1, F2, F3, and Chitosan (CS) were assessed in vitro using agar diffusion technique and biofilm inhibition assay. Finally, biofilm inhibition on teeth using Colony Forming Unit (CFU) was implemented with different concentrations of the three formulae. The results revealed that F2 is 202.9 nm with a negative charge -0.0254 mv, while F3 is 339.6 nm with a positive charge +28.5 mv. The encapsulation efficiency of F2, and F3 was 64% and 78% respectively. The amount released was 92.62% and 78.3% for F2 and F3, respectively, after 72 h, while F1 showed 100% released in the first hour. CS, F1, F2, and F3, showed antibacterial effect with inhibition zone of 12 mm, 22 mm, 20 mm, and 32 mm respectively. Biofilm inhibition of F1, F2, and F3 were 60%, 74%, and 91.8%, respectively. F3 colony count was less than F2, and F1 in all concentrations. It can be concluded that F3 had proven to exhibit potential antibacterial and antibiofilm activity in a controlled release pattern consequently, they can be used as an intra-canal medication.
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Affiliation(s)
- Mona G. Arafa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt (BUE), El Sherouk City, Egypt
- Chemotherapeutic Unit, Mansoura University Hospitals, Mansoura, Egypt
| | - Hadeel A. Mousa
- Department of Medical Science, Faculty of Dentistry, The British University in Egypt (BUE), El Sherouk City, Egypt
| | - Nagia N. Afifi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6th University, Cairo, Egypt
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22
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Qureshi D, Choudhary B, Mohanty B, Sarkar P, Anis A, Cerqueira MA, Banerjee I, Maji S, Pal K. Graphene Oxide Increases Corneal Permeation of Ciprofloxacin Hydrochloride from Oleogels: A Study with Cocoa Butter-Based Oleogels. Gels 2020; 6:E43. [PMID: 33238509 PMCID: PMC7709633 DOI: 10.3390/gels6040043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/16/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022] Open
Abstract
In this work, oleogels of cocoa butter (CB), rice bran oil (RBO), and graphene oxide (GO) were prepared. The prepared oleogels were subjected to various characterization techniques such as bright-field microscopy, X-ray diffraction (XRD), crystallization kinetics, differential scanning calorimetry (DSC), and mechanical studies. The influence of increasing GO content on the in vitro drug release and ex vivo corneal permeation of the model drug (ciprofloxacin HCl-CPH) from the oleogels was also investigated. Bright-field micrographs showed that increment in GO content reduced the size of the globular particles of CB. XRD analysis revealed that CB was crystallized in its β' and β polymorphic forms in the oleogels, which was in agreement with thermal studies. The mechanical characterization demonstrated that the presence of GO improved the elastic nature and stress-bearing properties of the oleogels. Moreover, GO altered the crystallization kinetics of CB in the oleogels in a composition-dependent manner. The in vitro release of CPH from the oleogels occurred through either Fickian diffusion or fat network relaxation or a combination thereof. Furthermore, the inclusion of GO enhanced the ex vivo permeation of CPH molecules across the caprine cornea. Hence, we concluded that the prepared oleogels could be explored as potential delivery systems for ophthalmic applications.
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Affiliation(s)
- Dilshad Qureshi
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India;
| | - Barbiee Choudhary
- Amity Institute of Biotechnology, Amity University, Noida 201301, India;
| | | | - Preetam Sarkar
- Department of Food Process Engineering, National Institute of Technology, Rourkela 769008, India;
| | - Arfat Anis
- SABIC Polymer Research Center, Department of Chemical Engineering, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Miguel A. Cerqueira
- International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal;
| | - Indranil Banerjee
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Jodhpur 600036, India;
| | - Samarendra Maji
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, India
| | - Kunal Pal
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela 769008, India;
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23
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Simon A, Moreira MLA, Costa IFDJB, de Sousa VP, Rodrigues CR, da Rocha E Lima LMT, Sisnande T, do Carmo FA, Leal ICR, Dos Santos KRN, da Silva LCRP, Cabral LM. Vancomycin-loaded nanoparticles against vancomycin intermediate and methicillin resistant Staphylococcus aureus strains. NANOTECHNOLOGY 2020; 31:375101. [PMID: 32470951 DOI: 10.1088/1361-6528/ab97d7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Bacterial infections represent one of the leading causes of mortality in the world. Among causative pathogens, S. aureus is prominently known as the underlying cause of many multidrug resistant infections that are often treated with the first-line choice antibiotic vancomycin (VCM). Loading antibiotics into polymeric nanoparticles (Np) displays promise as an alternative method to deliver therapy due to the greater access and accumulation of the antibiotic at the site of the infection as well as reducing toxicity, irritation and degradation. The aim of this work was to prepare, characterize and evaluate VCM-loaded nanoparticles (VNp) for use against S. aureus strains. Moreover, conjugation of Nps with holo-transferrin (h-Tf) was investigated as an approach for improving targeted drug delivery. VNp were prepared by double emulsion solvent evaporation method using PLGA and PVA or DMAB as surfactants. The particles were characterized for size distribution, Zeta Potential, morphology by transmission electron microscopy, encapsulation yield and protein conjugation efficiency. Process yield and drug loading were also investigated along with an in vitro evaluation of VNp antimicrobial effects against S. aureus strains. Results showed that Np were spontaneously formed with a mean diameter lower than 300 nm in a narrow size distribution that presented a spherical shape. The bioconjugation with h-Tf did not appear to increase the antimicrobial effect of VNp. However, non-bioconjugated Np presented a minimal inhibitory concentration lower than free VCM against a MRSA (Methicillin-resistant S. aureus) strain, and slightly higher against a VISA (VCM intermediate S. aureus) strain. VNp without h-Tf showed potential to assist in the development of new therapies against S. aureus infections.
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Affiliation(s)
- Alice Simon
- Laboratório de Tecnologia Industrial Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro - UFRJ, CCS, Lss20, Ilha do Fundão, 21941-590, Rio de Janeiro, RJ, Brazil
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24
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Salih M, Omolo CA, Devnarain N, Elrashedy AA, Mocktar C, Soliman MES, Govender T. Supramolecular self-assembled drug delivery system (SADDs) of vancomycin and tocopherol succinate as an antibacterial agent: in vitro, in silico and in vivo evaluations. Pharm Dev Technol 2020; 25:1090-1108. [PMID: 32684052 DOI: 10.1080/10837450.2020.1797786] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
In this study self-assembled drug delivery system (SADDs) composed of a hydrophobic d-α-tocopherol succinate (TS) and a hydrophilic vancomycin (VCM) were formulated, and its potential for enhancing the antibacterial activity of VCM against Staphylococcus aureus (SA) and Methicillin-resistant Staphylococcus aureus (MRSA) were explored. The SADDs were synthesized via supramolecular complexation, then characterized for in silico, in vitro and in vivo studies. In silico studies confirmed the self-assembly of VCM/TS into NPs. The size, surface charge and drug loading of the SADDs was ˂100 nm, -27 mV and 68%, respectively. The SADDs were non-hemolytic and biosafe. A sustained release of VCM from SADDs was noted, with 52.2% release after 48 hr. The in vitro antibacterial test showed a twofold decrease in Minimum inhibitory concentration (MIC) against SA and MRSA, and a significantly higher reduction in MRSA biofilms compared to bare VCM. Further, in silico studies confirmed strong and stable binding of TS to MRSA efflux pumps. The in vivo study using mice skin infection models showed a 9.5-fold reduction in bacterial load after treatment with SADDs, in comparison with bare VCM. These findings affirmed that VCM/TS NPs as a promising novel nano-delivery for treating bacterial infections.
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Affiliation(s)
- Mohammed Salih
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Calvin A Omolo
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa.,School of Pharmacy and Health Sciences, United States International University, Nairobi, Kenya
| | - Nikita Devnarain
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Ahmed A Elrashedy
- Molecular Bio-computation and Drug Design Lab, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Chunderika Mocktar
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Mahmoud E S Soliman
- Molecular Bio-computation and Drug Design Lab, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Thirumala Govender
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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25
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Omer ME, Halwani M, Alenazi RM, Alharbi O, Aljihani S, Massadeh S, Al Ghoribi M, Al Aamery M, Yassin AE. Novel Self-Assembled Polycaprolactone-Lipid Hybrid Nanoparticles Enhance the Antibacterial Activity of Ciprofloxacin. SLAS Technol 2020; 25:598-607. [PMID: 32734812 DOI: 10.1177/2472630320943126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Ciprofloxacin (CIP), a widely used antibiotic, is a poor biopharmaceutical resulting in low bioavailability. We optimized a CIP polymer-lipid hybrid nanoparticle (CIP-PLN) delivery system to enhance its biopharmaceutical attributes and the overall therapeutic performance. CIP-PLN formulations were prepared by a direct emulsification-solvent-evaporation method. Varying the type and ratio of lipid was tried to optimize a CIP-PLN formulation. All the prepared formulations were evaluated for their particle size, polydispersity index, zeta potential, physical stability, and drug entrapment efficiency. The drug in vitro release profile was also studied. Antibacterial activities were tested by the agar diffusion method for all CIP-PLN formulations against an Escherichia coli clinical bacterial isolate (EC04). CIP-PLN formulations showed average sizes in the range of 133.9 ± 1.7 nm to 217.1 ± 0.8 nm, exhibiting high size uniformity as indicated by polydispersity indices lower than 0.25. The entrapment efficiency was close to 80% for all formulations. The differential scanning calorimetry (DSC) thermograms indicated the existence of CIP in the amorphous state in all PLN formulations. Fourier transform infrared spectra indicated deep incorporation of molecular CIP within the polymer matrix. The release profile of CIP from PLN formulas showed a uniform prolonged drug profile, extended for a week from most formulations with a zero-order kinetics. The antibacterial activity of CIP-PLN formulations showed significantly higher antibacterial activity only with F4 containing lecithin as the lipid component. In conclusion, we successfully optimized a CIP-PLN formulation with a low nanoparticle size in a close range, high percentage of entrapment efficiency and drug loading, uniform prolonged release rate, and higher antibacterial activity against the EC04 clinical isolate.
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Affiliation(s)
- Mustafa E Omer
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, King Abdulaziz Medical City, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
| | - Majed Halwani
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, King Abdulaziz Medical City, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
| | - Rayan M Alenazi
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Omar Alharbi
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Shokran Aljihani
- King Abdullah International Medical Research Center, King Abdulaziz Medical City, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
| | - Salam Massadeh
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, King Abdulaziz Medical City, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
| | - Majed Al Ghoribi
- King Abdullah International Medical Research Center, King Abdulaziz Medical City, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
| | - Manal Al Aamery
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, King Abdulaziz Medical City, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
| | - Alaa Eldeen Yassin
- College of Pharmacy, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,King Abdullah International Medical Research Center, King Abdulaziz Medical City, Ministry of National Guard, Health Affairs, Riyadh, Saudi Arabia
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Brillault J, Tewes F. Control of the Lung Residence Time of Highly Permeable Molecules after Nebulization: Example of the Fluoroquinolones. Pharmaceutics 2020; 12:pharmaceutics12040387. [PMID: 32340298 PMCID: PMC7238242 DOI: 10.3390/pharmaceutics12040387] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/05/2020] [Accepted: 04/07/2020] [Indexed: 12/29/2022] Open
Abstract
Pulmonary drug delivery is a promising strategy to treat lung infectious disease as it allows for a high local drug concentration and low systemic side effects. This is particularly true for low-permeability drugs, such as tobramycin or colistin, that penetrate the lung at a low rate after systemic administration and greatly benefit from lung administration in terms of the local drug concentration. However, for relatively high-permeable drugs, such as fluoroquinolones (FQs), the rate of absorption is so high that the pulmonary administration has no therapeutic advantage compared to systemic or oral administration. Formulation strategies have thus been developed to decrease the absorption rate and increase FQs’ residence time in the lung after inhalation. In the present review, some of these strategies, which generally consist of either decreasing the lung epithelium permeability or decreasing the release rate of FQs into the epithelial lining fluid after lung deposition, are presented in regards to their clinical aspects.
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Affiliation(s)
- Julien Brillault
- INSERM U-1070, Pôle Biologie Santé, 86000 Poitiers, France
- UFR Médecine-Pharmacie, Université de Poitiers, 86073 Poitiers, France
- Correspondence: (J.B.); (F.T.)
| | - Frédéric Tewes
- INSERM U-1070, Pôle Biologie Santé, 86000 Poitiers, France
- UFR Médecine-Pharmacie, Université de Poitiers, 86073 Poitiers, France
- Correspondence: (J.B.); (F.T.)
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Ali Said F, Bousserrhine N, Alphonse V, Michely L, Belbekhouche S. Antibiotic loading and development of antibacterial capsules by using porous CaCO3 microparticles as starting material. Int J Pharm 2020; 579:119175. [DOI: 10.1016/j.ijpharm.2020.119175] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/20/2020] [Accepted: 02/22/2020] [Indexed: 11/24/2022]
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28
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Pawar V, Bulbake U, Khan W, Srivastava R. Chitosan sponges as a sustained release carrier system for the prophylaxis of orthopedic implant-associated infections. Int J Biol Macromol 2019; 134:100-112. [DOI: 10.1016/j.ijbiomac.2019.04.190] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 04/13/2019] [Accepted: 04/29/2019] [Indexed: 12/31/2022]
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29
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Development of Hydrophilic Drug Encapsulation and Controlled Release Using a Modified Nanoprecipitation Method. Processes (Basel) 2019. [DOI: 10.3390/pr7060331] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The improvement of the loading content of hydrophilic drugs by polymer nanoparticles (NPs) recently has received increased attention from the field of controlled release. We developed a novel, simply modified, drop-wise nanoprecipitation method which separated hydrophilic drugs and polymers into aqueous phase (continuous phase) and organic phase (dispersed phase), both individually and involving a mixing process. Using this method, we produced ciprofloxacin-loaded NPs by Poly (d,l-lactic acid)-Dextran (PLA-DEX) and Poly lactic acid-co-glycolic acid-Polyethylene glycol (PLGA-PEG) successfully, with a considerable drug-loading ability up to 27.2 wt% and an in vitro sustained release for up to six days. Drug content with NPs can be precisely tuned by changing the initial drug feed concentration of ciprofloxacin. These studies suggest that this modified nanoprecipitation method is a rapid, facile, and reproducible technique for making nano-scale drug delivery carriers with high drug-loading abilities
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30
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Mulas K, Stefanowicz Z, Oledzka E, Sobczak M. Current state of the polymeric delivery systems of fluoroquinolones – A review. J Control Release 2019; 294:195-215. [DOI: 10.1016/j.jconrel.2018.12.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 01/29/2023]
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31
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Crecente‐Campo J, Alonso MJ. Engineering, on-demand manufacturing, and scaling-up of polymeric nanocapsules. Bioeng Transl Med 2019; 4:38-50. [PMID: 30680317 PMCID: PMC6336665 DOI: 10.1002/btm2.10118] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 09/04/2018] [Accepted: 09/09/2018] [Indexed: 12/14/2022] Open
Abstract
Polymeric nanocapsules are versatile delivery systems with the capacity to load lipophilic drugs in their oily nucleus and hydrophilic drugs in their polymeric shell. The objective of this work was to expand the technological possibilities to prepare customized nanocapsules. First, we adapted the solvent displacement technique to modulate the particle size of the resulting nanocapsules in the 50-500 nm range. We also produced nanosystems with a shell made of one or multiple polymer layers i.e. chitosan, dextran sulphate, hyaluronate, chondroitin sulphate, and alginate. In addition, we identified the conditions to translate the process into a miniaturized high-throughput tailor-made fabrication that enables massive screening of formulations. Finally, the production of the nanocapsules was scaled-up both in a batch production, and also using microfluidics. The versatility of the properties of these nanocapsules and their fabrication technologies is expected to propel their advance from bench to clinic.
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Affiliation(s)
- José Crecente‐Campo
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus VidaUniversidade de Santiago de CompostelaSantiago de CompostelaSpain
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), Campus VidaUniversidade de Santiago de CompostelaSantiago de CompostelaSpain
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Chen M, Xie S, Wei J, Song X, Ding Z, Li X. Antibacterial Micelles with Vancomycin-Mediated Targeting and pH/Lipase-Triggered Release of Antibiotics. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36814-36823. [PMID: 30298721 DOI: 10.1021/acsami.8b16092] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Antibiotic delivery systems play an important role in increasing the efficacy while reducing the off-target toxicity and antibiotic resistance. Though bacterial infections share pathophysiological pathways similar to tumor tissues, few delivery systems have achieved bacterial targeting and on-demand release of antibiotics. In the current study, amphiphilic poly(ethylene glycol)-poly(ε-caprolactone) (PECL) copolymers are conjugated with vancomycin (VAN) as targeting ligands via pH-cleavable hydrazone bonds to obtain micelle carriers (Van-hyd-PECL). Subsequently, ciprofloxacin (CIP) is encapsulated to obtain Van-hyd-PECL/Cip micelles with an average size of 77 nm and a CIP loading amount of 4.5%. The poly(ethylene glycol) shells and the extension of VAN moieties on the micelle surface enhance the blood circulation and selective recognition of bacteria. The deshielding of VAN shells under acidic conditions disrupts the hydrophobic/hydrophilic balance leading to an increase in micelle sizes, which facilitates the degradation of poly(ε-caprolactone) by lipase overexpressed in the infection site and the release of encapsulated CIP for bacterial destruction. The micelle treatment has improved the survival of Pseudomonas aeruginosa-infected mice and reduced the bacterial burdens and alveolar injuries in lungs, compared with free drugs and micelles without inoculation of VAN moieties. Three doses of Van-hyd-PECL/Cip micelles further extend the animal survival, decrease the bacterial colonization in lungs, and almost restore the normal alveolar microstructure. In this regard, this study has demonstrated a strategy to enhance the bacterial targeting of micelles via an antibiotic (VAN) and to sequentially trigger the release of antibiotics (VAN and CIP) at the infection site.
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Affiliation(s)
- Maohua Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , P. R. China
| | - Songzhi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , P. R. China
| | - Jiaojun Wei
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , P. R. China
| | - Xiaojie Song
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , P. R. China
| | - Zhenghua Ding
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , P. R. China
| | - Xiaohong Li
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering , Southwest Jiaotong University , Chengdu 610031 , P. R. China
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33
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Hydrogel wound dressings loaded with PLGA/ciprofloxacin hydrochloride nanoparticles for use on pressure ulcers. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.06.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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34
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Topal GR, Devrim B, Eryilmaz M, Bozkir A. Design of ciprofloxacin-loaded nano-and microcomposite particles for dry powder inhaler formulations: preparation, in vitro characterisation, and antimicrobial efficacy. J Microencapsul 2018; 35:533-547. [PMID: 30213209 DOI: 10.1080/02652048.2018.1523970] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
In this study, ciprofloxacin hydrochloride (CIP)-loaded poly-ε-caprolactone (PCL) nanoparticles were prepared for pulmonary administration. CIP-loaded PCL nanoparticles were prepared using solid-in-oil-in-water (s/o/w) emulsion solvent evaporation method, and the effects of various formulation parameters on the physicochemical properties of the nanoparticles were investigated. PCL nanoparticles showed spherical shapes with particle sizes around 143-489 nm. Encapsulation efficiency was found to be very low because of water-solubility properties of CIP. However, the surface modification of nanoparticles with chitosan caused an increase in the encapsulation efficiency of nanoparticles. At drug release study, CIP-loaded PCL nanoparticles showed initial burst effect for 4 h and then continuously released for 72 h. Nanocomposite microparticles containing CIP-loaded PCL nanoparticles were prepared freeze-drying method and mannitol was used as carrier material. Tapped density and MMADt results show that nanocomposite microparticles have suitable aerodynamic properties for pulmonary administration. Antimicrobial efficacy investigations showed that CIP-encapsulated PCL nanoparticles and nanocomposite microparticles inhibited the growth of bacteria. Also, when the antimicrobial activity of the nanoparticles at the beginning and at the sixth month was examined, it was found that the structure of the particulate system was still preserved. These results indicated that nanocomposite microparticles containing CIP-loaded PCL nanoparticles can be used for pulmonary delivery.
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Affiliation(s)
- Gizem Rüya Topal
- a Faculty of Pharmacy, Department of Pharmaceutical Technology , Ankara University , Ankara , Turkey
| | - Burcu Devrim
- a Faculty of Pharmacy, Department of Pharmaceutical Technology , Ankara University , Ankara , Turkey
| | - Müjde Eryilmaz
- b Faculty of Pharmacy, Department of Pharmaceutical Microbiology , Ankara University , Ankara , Turkey
| | - Asuman Bozkir
- a Faculty of Pharmacy, Department of Pharmaceutical Technology , Ankara University , Ankara , Turkey
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35
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Almeida KB, Araujo JL, Cavalcanti JF, Romanos MTV, Mourão SC, Amaral ACF, Falcão DQ. In vitro release and anti-herpetic activity of Cymbopogon citratus volatile oil-loaded nanogel. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2018. [DOI: 10.1016/j.bjp.2018.05.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Pignatello R, Leonardi A, Fuochi V, Petronio Petronio G, Greco AS, Furneri PM. A Method for Efficient Loading of Ciprofloxacin Hydrochloride in Cationic Solid Lipid Nanoparticles: Formulation and Microbiological Evaluation. NANOMATERIALS 2018; 8:nano8050304. [PMID: 29734771 PMCID: PMC5977318 DOI: 10.3390/nano8050304] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/09/2018] [Accepted: 05/02/2018] [Indexed: 11/16/2022]
Abstract
The aim of the study was the production of solid lipid nanoparticles (SLN) loaded with ciprofloxacin (CIP) through two different production techniques, quasi-emulsion solvent diffusion (QESD) and solvent injection (SI). In order to efficaciously entrap the commercial salt form (hydrochloride) of the antibiotic in these lipid systems, a conversion of CIP hydrochloride to the free base was realized in situ, through the addition of triethylamine. To ensure physical stability to the carriers over time and ameliorate the interaction with bacterial cell membranes, positively charged SLN were produced by addition of the cationic lipid didecyldimethylammonium bromide (DDAB). Homogeneous SLN populations with a mean particle sizes of 250–350 nm were produced by both methods; drug encapsulation was over 85% for most samples. The SLN were physically stable for up to nine months both at 4 °C and 25 °C, although the former condition appears more suitable to guarantee the maintenance of the initial particle size distribution. As expected, CIP encapsulation efficiency underwent a slight reduction after nine months of storage, although the initial high drug content values would ensure a residual concentration of the antibiotic in the SLN still appropriate to exert an acceptable antibacterial activity. Selected SLN formulations were subjected to an in vitro microbiological assay against different bacterial strains, to verify the effect of nanoencapsulation on the cell growth inhibitory activity of CIP. In general, CIP-SLN produced without DDAB showed MIC values for CIP comparable to those of the free drug. Conversely, addition of increasing percentages of the cationic lipid, reflected by a progressive increase of the positive value of the Zeta potential, showed a variety of MIC values against the various bacterial strains, but with values 2–4 order of dilution lower than free CIP. An hypothesis of the effect of the cationic lipid upon the increased antibacterial activity of CIP in the nanocarriers is also formulated.
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Affiliation(s)
- Rosario Pignatello
- Section of Pharmaceutical Technology, Department of Drug Sciences, University of Catania, 95125 Catania, Italy.
- NANO-i, Research Centre on Ocular Nanotechnology, University of Catania, 95125 Catania, Italy.
| | - Antonio Leonardi
- Section of Pharmaceutical Technology, Department of Drug Sciences, University of Catania, 95125 Catania, Italy.
| | - Virginia Fuochi
- Section of Microbiology, Department of Biomedical and Biotechnological Sciences, BIOMETEC, University of Catania, 95125 Catania, Italy.
| | - Giulio Petronio Petronio
- Section of Microbiology, Department of Biomedical and Biotechnological Sciences, BIOMETEC, University of Catania, 95125 Catania, Italy.
| | - Antonio S Greco
- Section of Pharmaceutical Technology, Department of Drug Sciences, University of Catania, 95125 Catania, Italy.
| | - Pio Maria Furneri
- Section of Microbiology, Department of Biomedical and Biotechnological Sciences, BIOMETEC, University of Catania, 95125 Catania, Italy.
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Pancani E, Menendez-Miranda M, Pastor A, Brisset F, Bernet-Camard MF, Desmaële D, Gref R. Nanoparticles with high payloads of pipemidic acid, a poorly soluble crystalline drug: drug-initiated polymerization and self-assembly approach. Acta Pharm Sin B 2018; 8:420-431. [PMID: 29881681 PMCID: PMC5989915 DOI: 10.1016/j.apsb.2018.03.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 02/28/2018] [Accepted: 03/16/2018] [Indexed: 01/03/2023] Open
Abstract
Nowadays, biodegradable polymers such as poly(lactic acid) (PLA), poly(D,L-lactic-co-glycolic acid) (PLGA) and poly(ε-caprolactone) (PCL) remain the most common biomaterials to produce drug-loaded nanoparticles (NPs). Pipemidic acid (PIP) is a poorly soluble antibiotic with a strong tendency to crystallize. PIP incorporation in PLA/PLGA NPs was challenging because of PIP crystals formation and burst release. As PIP had a poor affinity for the NPs, an alternative approach to encapsulation was used, consisting in coupling PIP to PCL. Thus, a PCL-PIP conjugate was successfully synthesized by an original drug-initiated polymerization in a single step without the need of catalyst. PCL-PIP was characterized by NMR, IR, SEC and mass spectrometry. PCL-PIP was used to prepare self-assembled NPs with PIP contents as high as 27% (w/w). The NPs were characterized by microscopy, DLS, NTA and TRPS. This study paves the way towards the production of NPs with high antibiotic payloads by drug-initiated polymerization. Further studies will deal with the synthesis of novel polymer-PIP conjugates with ester bonds between the drug and PCL. PIP can be considered as a model drug and the strategy developed here could be extended to other challenging antibiotics or anticancer drugs and employed to efficiently incorporate them in NPs.
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Affiliation(s)
- Elisabetta Pancani
- Institut de Sciences Moléculaires d’Orsay (ISMO), Univ. of Paris-Sud, Université Paris-Saclay, Orsay 91405, France
| | - Mario Menendez-Miranda
- Institut de Sciences Moléculaires d’Orsay (ISMO), Univ. of Paris-Sud, Université Paris-Saclay, Orsay 91405, France
| | - Alexandra Pastor
- Institut de Sciences Moléculaires d’Orsay (ISMO), Univ. of Paris-Sud, Université Paris-Saclay, Orsay 91405, France
- Institut Galien, UMR8612 Univ. of Paris-Sud, Université Paris-Saclay, Châtenay-Malabry 92290, France
| | - François Brisset
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Univ. of Paris-Sud, Université Paris-Saclay, Orsay 91405, France
| | - Marie-Françoise Bernet-Camard
- EA4043 "Unité Bactéries Pathogènes et Santé" (UBaPS), Univ. of Paris-Sud, Université Paris-Saclay, Châtenay-Malabry 92290, France
| | - Didier Desmaële
- Institut Galien, UMR8612 Univ. of Paris-Sud, Université Paris-Saclay, Châtenay-Malabry 92290, France
| | - Ruxandra Gref
- Institut de Sciences Moléculaires d’Orsay (ISMO), Univ. of Paris-Sud, Université Paris-Saclay, Orsay 91405, France
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Barman TK, Kumar M, Chaira T, Dalela M, Gupta D, Jha PK, Yadav AS, Upadhyay DJ, Raj VS, Singh H. In vivo efficacy and pharmacokinetics of bi-aryl oxazolidinone RBx 11760 loaded polylactic acid-polyethylene glycol nanoparticles in mouse hematogenous bronchopneumonia and rat groin abscess caused by Staphylococcus aureus. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018. [PMID: 29524496 DOI: 10.1016/j.nano.2018.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
RBx 11760 is a bi-aryl oxazolidinone antibacterial agent active against Staphylococcus aureus but has poor solubility. Here we have encapsulated RBx 11760 in PLA-PEG NPs with an aim to improve physicochemical, pharmacokinetics and in vivo efficacy. The average size and zeta potential of RBx 11760 loaded NPs were found to be 106.4 nm and -22.2 mV, respectively. The absolute size of nanoparticles by HRTEM was found to be approximately 80 nm. In vitro antibacterial agar well diffusion assay showed clear zone of inhibition of bacterial growth. In pharmacokinetic study, nanoparticle showed 4.6-fold and 7-fold increase in AUCinf and half-life, respectively, as compared to free drug. RBx 11760 nanoparticle significantly reduced bacterial counts in lungs and improved the survival rate of immunocompromised mice as compared to free drugs. Thus, RBx 11760 loaded nanoparticles have strong potential to be used as nanomedicine against sensitive and drug resistant Staphylococcus aureus infections.
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Affiliation(s)
- Tarani Kanta Barman
- Center for Biomedical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India; Department of Microbiology, Daiichi Sankyo India Pharma Private Limited, Village Sarhaul, Sector-18, Udyog Vihar Industrial Area, Gurgaon 122015, Haryana, India
| | - Manoj Kumar
- Center for Biomedical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Tridib Chaira
- Drug Metabolism & Pharmacokinetics, Daiichi Sankyo India Pharma Private Limited, Village Sarhaul, Sector-18, Udyog Vihar Industrial Area, Gurgaon 122015, Haryana, India
| | - Manu Dalela
- Center for Biomedical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Dikshi Gupta
- Center for Biomedical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
| | - Paras Kumar Jha
- Department of Microbiology, Daiichi Sankyo India Pharma Private Limited, Village Sarhaul, Sector-18, Udyog Vihar Industrial Area, Gurgaon 122015, Haryana, India
| | - Ajay Singh Yadav
- Medicinal Chemistry, Daiichi Sankyo India Pharma Private Limited, Village Sarhaul, Sector-18, Udyog Vihar Industrial Area, Gurgaon 122015, Haryana, India
| | - Dilip J Upadhyay
- Department of Microbiology, Daiichi Sankyo India Pharma Private Limited, Village Sarhaul, Sector-18, Udyog Vihar Industrial Area, Gurgaon 122015, Haryana, India
| | - V Samuel Raj
- Department of Microbiology, Daiichi Sankyo India Pharma Private Limited, Village Sarhaul, Sector-18, Udyog Vihar Industrial Area, Gurgaon 122015, Haryana, India.
| | - Harpal Singh
- Center for Biomedical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India.
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Formulation and Characterization of Ciprofloxacin loaded PLGA Microspheres for Applications in Orthopedic Infections. CURRENT HEALTH SCIENCES JOURNAL 2017; 43:306-310. [PMID: 30595894 PMCID: PMC6286455 DOI: 10.12865/chsj.43.04.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 12/02/2017] [Indexed: 12/20/2022]
Abstract
ABSTRACT: Purpose-Osteomyelitis is a bone infection that appears as a complication after a fracture or orthopedic surgery. Ciprofloxacin is a broad spectrum antibiotic that can be used in local drug delivery systems for the treatment of bone related infections due to its bactericidal activity against both Gram-negative and Gram-positive bacteria. The purpose of the present study was to include ciprofloxacin in poly (lactic-co-glycolic acid) (PLGA) microspheres. Material and methods-Microspheres were prepared by both water/oil/water (w/o/w) solvent evaporation method and solid/oil/water (s/o/w) dispersion solvent evaporation method. The obtained microspheres were characterized by Fourier Transform Infrared Spectroscopy. High performance liquid chromatography method was deployed to determine the encapsulation ratio. Results-The solvent evaporation method chosen for this experiment resulted in microspheres with good entrapment efficiency. Furthermore the microspheres obtained by the s/o/w method displayed better entrapment efficiency. Conclusion-The particles obtained through the s/o/w technique should be further investigated in order to develop a local drug delivery system.
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Sobhani Z, Mohammadi Samani S, Montaseri H, Khezri E. Nanoparticles of Chitosan Loaded Ciprofloxacin: Fabrication and Antimicrobial Activity. Adv Pharm Bull 2017; 7:427-432. [PMID: 29071225 PMCID: PMC5651064 DOI: 10.15171/apb.2017.051] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 08/06/2017] [Accepted: 08/15/2017] [Indexed: 11/09/2022] Open
Abstract
Purpose: Chitosan is a natural mucoadhesive polymer with antibacterial activity. In the present study, chitosan (CS) nanoparticles were investigated as a vehicle for delivery of antibiotic, ciprofloxacin hydrochloride. Methods: Ionotropic gelation method was used for preparation chitosan nanoparticles. The effects of various factors including concentration of CS, concentration of tripolyphosphate (TPP), and homogenization rate on the size of nanoparticles were studied. The effects of various mass ratios of CS to ciprofloxacin hydrochloride on the encapsulation efficiency of nanoparticles were assessed. Results: The particles prepared under optimal condition of 0.45% CS concentration, 0.45% TPP concentration and homogenizer rate at 6000 rpm, had 72 nm diameter. In these particles with 1:0.5 mass ratio of CS to ciprofloxacin hydrochloride, the encapsulation efficiency was 23%. The antibacterial activity of chitosan nanoparticles and ciprofloxacin-loaded nanoparticles against E.coli and S.aureus was evaluated by calculation of minimum inhibitory concentration (MIC). Results showed that MIC of ciprofloxacin loaded chitosan nanoparticles was 50% lower than that of ciprofloxacin hydrochloride alone in both of microorganism species. Nanoparticles without drug exhibited antibacterial activity at higher concentrations and MIC of them against E.coli and S.aureus was 177 and 277 µg/ml, respectively. Conclusion: Therefore chitosan nanoparticles could be applied as carrier for decreasing the dose of antibacterial agents in the infections.
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Affiliation(s)
- Zahra Sobhani
- Department of quality control, Faculty of pharmacy, Shiraz University of Medical Science, Shiraz, Iran
- Center for nanotechnology in drug delivery, Faculty of pharmacy, Shiraz University of Medical Science, Shiraz, Iran
| | - Soliman Mohammadi Samani
- Department of pharmaceutics, Faculty of pharmacy, Shiraz University of Medical Science, Shiraz, Iran
| | - Hashem Montaseri
- Department of quality control, Faculty of pharmacy, Shiraz University of Medical Science, Shiraz, Iran
| | - Elham Khezri
- Department of quality control, Faculty of pharmacy, Shiraz University of Medical Science, Shiraz, Iran
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Zhou Y, Hu K, Guo Z, Fang K, Wang X, Yang F, Gu N. PLLA microcapsules combined with silver nanoparticles and chlorhexidine acetate showing improved antibacterial effect. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:349-353. [PMID: 28575994 DOI: 10.1016/j.msec.2017.04.100] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 04/15/2017] [Accepted: 04/16/2017] [Indexed: 11/30/2022]
Abstract
In this study, composite antibacterial microcapsules combining of two antibacterial agents: chlorhexidine acetate and silver nanoparticle were prepared. The chlorhexidine acetate was encapsulated inside of the microcapsules and nano-sized silver particles were modified on the surface of microcapsules by electrostatic adsorption methods. Results show that this method decreases the silver usage dramatically, and promises a sustained antibacterial effect >30days. These microcapsules can also be modified on the surface of polymer films easily, which demonstrated the potential in functionalizing the implanted materials with antibacterial property.
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Affiliation(s)
- Yuwei Zhou
- State Key Laboratory of Bioelectronics and Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Ke Hu
- Key Laboratory of Clinical Engineering, Nanjing Medical University, Nanjing 211166, China
| | - Zhaobin Guo
- State Key Laboratory of Bioelectronics and Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Kun Fang
- State Key Laboratory of Bioelectronics and Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Xing Wang
- State Key Laboratory of Bioelectronics and Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China; Jiangsu Province Hospital of Traditional Chinese Medicine, Nanjing 210029, China
| | - Fang Yang
- State Key Laboratory of Bioelectronics and Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Ning Gu
- State Key Laboratory of Bioelectronics and Jiangsu Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China.
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Thomas N, Thorn C, Richter K, Thierry B, Prestidge C. Efficacy of Poly-Lactic-Co-Glycolic Acid Micro- and Nanoparticles of Ciprofloxacin Against Bacterial Biofilms. J Pharm Sci 2016; 105:3115-3122. [PMID: 27519649 DOI: 10.1016/j.xphs.2016.06.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 05/27/2016] [Accepted: 06/24/2016] [Indexed: 12/13/2022]
Abstract
Bacterial biofilms are associated with a number of recurring infectious diseases and are a major cause for antibiotic resistance. Despite the broad use of polymeric microparticles and nanoparticles in biomedical research, it is not clear which particle size is more effective against biofilms. The purpose of this study was to evaluate the efficacy of sustained release poly-lactic-co-glycolic acid (PLGA) micro- and nanoparticles containing ciprofloxacin against biofilms of Staphylococcus aureus and Pseudomonas aeruginosa. The PLGA particles were prepared by the double emulsion solvent evaporation method. The resulting microparticles (12 μm) and nanoparticles (300 nm) contained drug loads of 7.3% and 4.5% (wt/wt) ciprofloxacin, respectively. Drug release was complete within 1 week following comparable release profiles for both particle sizes. Micro- and nanoparticles demonstrated a similar in vitro antibiofilm performance against mature P aeruginosa and S aureus with marked differences between the 2 strains. The sustained release of ciprofloxacin from micro- and nanoparticles over 6 days was equally effective as the continuous treatment with ciprofloxacin solution over the same period resulting in the eradication of culturable S aureus suggesting that reformulation of ciprofloxacin as sustained release PLGA micro- and nanoparticles might be valuable formulation approaches for the treatment of biofilms.
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Affiliation(s)
- Nicky Thomas
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA 5000, Australia; Basil Hetzel Institute for Translational Health Research, Woodville South, SA 5011, Australia.
| | - Chelsea Thorn
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Katharina Richter
- Basil Hetzel Institute for Translational Health Research, Woodville South, SA 5011, Australia; Department of Otolaryngology Head and Neck Surgery, University of Adelaide, Adelaide, SA 5000, Australia
| | - Benjamin Thierry
- Future Industries Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia
| | - Clive Prestidge
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA 5000, Australia
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Mukherjee R, Patra M, Dutta D, Banik M, Basu T. Tetracycline-loaded calcium phosphate nanoparticle (Tet-CPNP): Rejuvenation of an obsolete antibiotic to further action. Biochim Biophys Acta Gen Subj 2016; 1860:1929-41. [PMID: 27288585 DOI: 10.1016/j.bbagen.2016.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 05/30/2016] [Accepted: 06/06/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Increasing resistance in bacteria towards antibiotics has made it imperative to research on their revitalization to combat infectious diseases. This study dealt with synthesis of a nano-form of the antibiotic tetracycline, its characterization and potency of killing different multi-drug resistant diarrhea-causing bacteria. METHODS Nano-formulation was done by loading tetracycline within biocompatible calcium phosphate nanoparticle. The synthesized tetracycline-loaded calcium phosphate nanoparticle (Tet-CPNP) was characterized by the techniques like TEM, DLS, EDS, FTIR, spectrofluorimetry and dialysis. Bactericidal activity of nano-particulate tetracycline was investigated by agar plating, spectrophotometry, phase contrast-fluorescence-atomic force microscopy and flow cytometry techniques. RESULTS The Tet-CPNPs were 8±5nm in size and nearly spherical in shape, efficiency of tetracycline loading in CPNP was about 20% and the release of antibiotic from Tet-CPNPs was sustainable during 7days. Minimum inhibitory concentration (MIC) of Tet-CPNP on multiple antibiotic (including tetracycline) resistant bacteria like Escherichia coli, Salmonella kentuckey and Shigella flexneri was in the range of 20-40μg/ml, whereas MIC of free tetracycline was in the range of 150-180μg/ml. NP-mediated cell filamentation and cell membrane disintegration caused cell killing. Moreover, death of Shigella-infected Zebra fish larvae was stalled by Tet-CPNP treatment. CPNP itself had no toxic effect on bacteria as well as on Zebra fish. CONCLUSION Our nano-formulation of tetracycline might reclaim a nearly obsolete antibiotic to further potential function. GENERAL SIGNIFICANCE Such a study on revival of an old, cheap, broad-spectrum antibiotic to further action is highly beneficial to developing countries with limited health care budgets.
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Affiliation(s)
- Riya Mukherjee
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, West Bengal, India
| | - Mousumi Patra
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, West Bengal, India
| | - Debanjan Dutta
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, West Bengal, India
| | - Milon Banik
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, West Bengal, India
| | - Tarakdas Basu
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani 741 235, West Bengal, India.
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Isa T, Zakaria ZAB, Rukayadi Y, Mohd Hezmee MN, Jaji AZ, Imam MU, Hammadi NI, Mahmood SK. Antibacterial Activity of Ciprofloxacin-Encapsulated Cockle Shells Calcium Carbonate (Aragonite) Nanoparticles and Its Biocompatability in Macrophage J774A.1. Int J Mol Sci 2016; 17:E713. [PMID: 27213349 PMCID: PMC4881535 DOI: 10.3390/ijms17050713] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/16/2016] [Accepted: 04/19/2016] [Indexed: 11/21/2022] Open
Abstract
The use of nanoparticle delivery systems to enhance intracellular penetration of antibiotics and their retention time is becoming popular. The challenge, however, is that the interaction of nanoparticles with biological systems at the cellular level must be established prior to biomedical applications. Ciprofloxacin-cockle shells-derived calcium carbonate (aragonite) nanoparticles (C-CSCCAN) were developed and characterized. Antibacterial activity was determined using a modified disc diffusion protocol on Salmonella Typhimurium (S. Typhimurium). Biocompatibilittes with macrophage were evaluated using the 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and 5-Bromo-2'-deoxyuridine (BrdU) assays. Transcriptional regulation of interleukin 1 beta (IL-1β) was determined using reverse transcriptase-polymerase chain reaction (RT-PCR). C-CSCCAN were spherical in shape, with particle sizes ranging from 11.93 to 22.12 nm. Encapsulation efficiency (EE) and loading content (LC) were 99.5% and 5.9%, respectively, with negative ζ potential. X-ray diffraction patterns revealed strong crystallizations and purity in the formulations. The mean diameter of inhibition zone was 18.6 ± 0.5 mm, which was better than ciprofloxacin alone (11.7 ± 0.9 mm). Study of biocompatability established the cytocompatability of the delivery system without upregulation of IL-1β. The results indicated that ciprofloxacin-nanoparticles enhanced the antibacterial efficacy of the antibiotic, and could act as a suitable delivery system against intracellular infections.
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Affiliation(s)
- Tijani Isa
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
- Faculty of Food Science and Technology and Laboratory of Natural Product, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| | - Zuki Abu Bakar Zakaria
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| | - Yaya Rukayadi
- Faculty of Food Science and Technology and Laboratory of Natural Product, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| | - Mohd Noor Mohd Hezmee
- Laboratory of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| | - Alhaji Zubair Jaji
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| | - Mustapha Umar Imam
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| | - Nahidah Ibrahim Hammadi
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
| | - Saffanah Khuder Mahmood
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia.
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Zafar N, Agusti G, Fessi H, Elaissari A. Elaboration of sponge-like biodegradable cationic particles via double-emulsion solvent evaporation. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1182923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nadiah Zafar
- University Lyon-1, UMR 5007, LAGEP-CPE, Villeurbanne, France
| | | | - Hatem Fessi
- University Lyon-1, UMR 5007, LAGEP-CPE, Villeurbanne, France
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Yousry C, Fahmy RH, Essam T, El-Laithy HM, Elkheshen SA. Nanoparticles as tool for enhanced ophthalmic delivery of vancomycin: a multidistrict-based microbiological study, solid lipid nanoparticles formulation and evaluation. Drug Dev Ind Pharm 2016; 42:1752-62. [PMID: 27093938 DOI: 10.3109/03639045.2016.1171335] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT A microbiological multidistrict-based survey from different Egyptian governorates was conducted to determine the most prevalent causative agents of ocular infections in the Egyptian population. Antibiotic sensitivity testing was then performed to identify the most potent antimicrobial agent. Vancomycin (VCM) proved the highest activity against gram-positive Staphylococcus bacteria, which are the most commonly isolated causative agents of ocular infection. However, topically applied VCM suffers from poor ocular bioavailability because of its high molecular weight and hydrophilicity. OBJECTIVE The aim of the present study was to develop VCM-loaded solid lipid nanoparticles (SLNs) using water-in-oil-in-water (W/O/W) double emulsion, solvent evaporation technique to enhance ocular penetration and prolong ophthalmic residence of VCM. METHOD Two consecutive full factorial designs (2(4) followed by 3(2)) were adopted to study the effect of different formulation and process parameters on SLN formulation. The lipid type and structure, polyvinyl alcohol (PVA) molecular weight and concentration, sonication time, as well as lipid:drug ratio were studied as independent variables. The formulated SLN formulae were evaluated for encapsulation efficiency (EE%), particle size (PS), and zeta potential as dependent variables. RESULTS The statistically-optimized SLN formula (1:1 ratio of glyceryltripalmitate:VCM with 1% low molecular weight PVA and 1 min sonication time) had average PS of 277.25 nm, zeta potential of -20.45, and 19.99% drug encapsulation. Scanning and transmission electron micrographs showed well-defined, spherical, homogenously distributed particles. CONCLUSION The present study suggests that VCM incorporation into SLNs is successfully achievable; however, further studies with different nanoencapsulation materials and techniques would be valuable for improving VCM encapsulation.
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Affiliation(s)
- Carol Yousry
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Kasr El-Aini St , Cairo , Egypt
| | - Rania Hassan Fahmy
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Kasr El-Aini St , Cairo , Egypt
| | - Tamer Essam
- b Department of Microbiology and Immunology, and Biotechnology Center, Faculty of Pharmacy , Cairo University , Kasr El-Aini St , Cairo , Egypt
| | - Hanan M El-Laithy
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Kasr El-Aini St , Cairo , Egypt ;,c Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , October University for Modern Sciences and Arts , Cairo , Egypt
| | - Seham A Elkheshen
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo University , Kasr El-Aini St , Cairo , Egypt ;,d Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries , Future University in Egypt , Cairo , Egypt
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Tummalapalli M, Berthet M, Verrier B, Deopura BL, Alam MS, Gupta B. Drug loaded composite oxidized pectin and gelatin networks for accelerated wound healing. Int J Pharm 2016; 505:234-45. [PMID: 27063849 DOI: 10.1016/j.ijpharm.2016.04.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 04/02/2016] [Accepted: 04/04/2016] [Indexed: 12/26/2022]
Abstract
Biocomposite interactive wound dressings have been designed and fabricated using oxidized pectin (OP), gelatin and nonwoven cotton fabric. Due to their inherent virtues of antimicrobial activity and cytocompatibility, these composite structures are capable of redirecting the healing cascade and influencing cell attachment and proliferation. A novel in situ reduction process has been followed to synthesize oxidized pectin-gelatin-nanosilver (OP-Gel-NS) flower like nanohydrocolloids. This encapsulation technology controls the diffusion and permeation of nanosilver into the surrounding biological tissues. Ciprofloxacin hydrochloride has also been incorporated into the OP-Gel matrix to produce OP-Gel-Cipro dressings. While OP-Gel-NS dressings exhibited 100% antimicrobial activity at extremely low loadings of 3.75μg/cm(2), OP-Gel-Cipro dressings were highly antimicrobial at 1% drug loading. While NIH3T3 mouse fibroblasts proliferated remarkably well when cultured with OP-Gel and OP-Gel-Cipro dressings, OP-Gel-NS hindered cell growth and Bactigras(®) induced complete lysis. Full thickness excisional wounds were created on C57BL/6J mice and the wound healing potential of the OP-Gel-NS dressings led to accelerated healing within 12days, while OP-Gel-Cipro dressings healed wounds at a rate similar to that of Bactigras(®). Histological examination revealed that OP-Gel-NS and OP-Gel-Cipro treatment led to organized collagen deposition, neovascularization and nuclei migration, unlike Bactigras(®). Therefore, the OP-Gel-NS and OP-Gel-Cipro biocomposite dressings exhibiting good hydrophilicity, sustained antimicrobial nature, promote cell growth and proliferation, and lead to rapid healing, can be considered viable candidates for effective management.
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Affiliation(s)
- Mythili Tummalapalli
- Bioengineering Lab, Department of Textile Technology, Indian Institute of Technology, New Delhi 16, India
| | - Morgane Berthet
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, UMR 5305 CNRS-UCBL-Lyon Cedex 07, France
| | - Bernard Verrier
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, UMR 5305 CNRS-UCBL-Lyon Cedex 07, France
| | - B L Deopura
- Bioengineering Lab, Department of Textile Technology, Indian Institute of Technology, New Delhi 16, India
| | - M S Alam
- Department of Chemistry, Jamia Hamdard, New Delhi 62, India
| | - Bhuvanesh Gupta
- Bioengineering Lab, Department of Textile Technology, Indian Institute of Technology, New Delhi 16, India.
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Maleki Dizaj S, Lotfipour F, Barzegar-Jalali M, Zarrintan MH, Adibkia K. Ciprofloxacin HCl-loaded calcium carbonate nanoparticles: preparation, solid state characterization, and evaluation of antimicrobial effect against Staphylococcus aureus. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:535-543. [DOI: 10.3109/21691401.2016.1161637] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Solmaz Maleki Dizaj
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Farzaneh Lotfipour
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Faculty of Pharmacy, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Barzegar-Jalali
- Faculty of Pharmacy, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Khosro Adibkia
- Faculty of Pharmacy, Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Marbofloxacin-encapsulated microparticles provide sustained drug release for treatment of veterinary diseases. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 60:511-517. [PMID: 26706558 DOI: 10.1016/j.msec.2015.12.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 11/03/2015] [Accepted: 12/03/2015] [Indexed: 11/23/2022]
Abstract
Fluoroquinolone antibiotics with concentration-dependent killing effects and a well-established broad spectrum of activity are used commonly to treat infectious diseases caused by bacteria. However, frequent and excessive administration of these antibiotics is a serious problem, and leads to increased number of drug-resistant bacteria. Thus, there is an urgent need for novel fluoroquinolone antibiotic formulations that minimize the risk of resistance while maximizing their efficacy. In this study, we developed intramuscularly injectable polymeric microparticles (MPs) that encapsulated with marbofloxacin (MAR) and were composed of poly(D,L-lactide-co-glycolic acid) (PLGA) and poloxamer (POL). MAR-encapsulated MP (MAR-MP) had a spherical shape with particle size ranging from 80 μm to 120 μm. Drug loading efficiency varied from 55 to 85% (w/w) at increasing amount of hydrophilic agent, POL. Drug release from MAR-MP demonstrated a significant and sustained increase at increased ratios of POL to PLGA. These results indicate that MAR-MP is an improved drug delivery carrier for fluoroquinolone antibiotics, which can reduce the number of doses needed and sustain a high release rate of MAR for 2-3 days. As a novel and highly effective drug delivery platform, MAR-MP has great potential for use in a broad range of applications for the treatment of various veterinary diseases.
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