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Kai KC, Borges R, Pedroni ACF, Pelosine AM, da Cunha MR, Marques MM, de Araújo DR, Marchi J. Tricalcium phosphate-loaded injectable hydrogel as a promising osteogenic and bactericidal teicoplanin-delivery system for osteomyelitis treatment: An in vitro and in vivo investigation. BIOMATERIALS ADVANCES 2024; 164:213966. [PMID: 39094443 DOI: 10.1016/j.bioadv.2024.213966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/25/2024] [Accepted: 07/21/2024] [Indexed: 08/04/2024]
Abstract
Osteomyelitis is an inflammation of bone tissue usually caused by pyogenic bacteria. The most recurrent clinical approach consists of bone debridement followed by parenteral administration of antibiotics. However, systemic antibiotic treatment has limitations regarding absorption rate and bioavailability over time. The main challenge of osteomyelitis treatment consists of coupling the persistent infection treatment with the regeneration of the bone debrided. In this work, we developed an injectable drug delivery system based on poloxamer 407 hydrogel containing undoped Mg, Zn-doped tricalcium phosphate (β-TCP), and teicoplanin, a broad-spectrum antibiotic. We evaluated how the addition of teicoplanin and β-TCP affected the micellization, gelation, particle size, and surface charge of the hydrogel. Later, we studied the hydrogel degradation and drug delivery kinetics. Finally, the bactericidal, biocompatibility, and osteogenic properties were evaluated through in vitro studies and confirmed by in vivo Wistar rat models. Teicoplanin was found to be encapsulated in the corona portions of the hydrogel micelles, yielding a bigger hydrodynamics radius. The encapsulated teicoplanin showed a sustained release over the evaluated period, enough to trigger antibacterial properties against Gram-positive bacteria. Besides, the formulations were biocompatible and showed bone healing ability and osteogenic properties. Finally, in vivo studies confirmed that the proposed locally injected formulations yielded osteomyelitis treatment with superior outcomes than parenteral administration while promoting bone regeneration. In conclusion, the presented formulations are promising drug delivery systems for osteomyelitis treatment and deserve further technological improvements.
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Affiliation(s)
- Karen Cristina Kai
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP, Brazil; Department of Morphology and Pathology, Jundiai Medical School, Jundiai, Brazil
| | - Roger Borges
- School of Biomedical Engineering, Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
| | | | - Agatha Maria Pelosine
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP, Brazil.
| | - Marcelo Rodrigues da Cunha
- Department of Morphology and Pathology, Jundiai Medical School, Jundiai, Brazil; Interunits Graduate Program in Bioengineering (EESC/FMRP/IQSC), University of Sao Paulo (USP), Sao Carlos, Brazil
| | - Marcia Martins Marques
- Faculdade de Odontologia, Universidade de São Paulo, São Paulo, SP, Brazil; Postgraduation Program in Dentistry, Ibirapuera University, São Paulo, Brazil.
| | - Daniele Ribeiro de Araújo
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP, Brazil.
| | - Juliana Marchi
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP 09210-180, Brazil..
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Phewchan P, Laoruengthana A, Lamlertthon S, Tiyaboonchai W. Injectable vancomycin-loaded silk fibroin/methylcellulose containing calcium phosphate-based in situ thermosensitive hydrogel for local treatment of osteomyelitis: Fabrication, characterization, and in vitro performance evaluation. J Biomed Mater Res A 2024. [PMID: 38984391 DOI: 10.1002/jbm.a.37772] [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: 02/04/2024] [Revised: 05/21/2024] [Accepted: 06/26/2024] [Indexed: 07/11/2024]
Abstract
The conventional treatment of osteomyelitis with antibiotic-loaded nondegradable polymethylmethacrylate (ATB-PMMA) beads has certain limitations, including impeded bone reconstruction and the need for secondary surgery. To overcome this challenge, this study aimed to develop and characterize an injectable vancomycin-loaded silk fibroin/methylcellulose containing calcium phosphate-based in situ thermosensitive hydrogel (VC-SF/MC-CAPs). The VC-SF/MC-CAPs solution can be easily administered at room temperature with a low injectability force of ≤30 N and a high vancomycin (VC) content of ~96%. Additionally, at physiological temperature (37 °C), the solution could transform into a rigid hydrogel within 7 minutes. In vitro drug release performed under both physiological (pH 7.4) and infection conditions (pH 4.5) revealed a prolonged release pattern of VC-SF/MC-CAPs following the Peppas-Sahlin kinetic model. In addition, the released VC from VC-SF/MC-CAPs hydrogels exhibited antibacterial activity against Staphylococcus aureus for a period exceeding 35 days, as characterized by the disk diffusion assay. Furthermore, at pH 7.4, the VC-SF/MC-CAPs demonstrated >60% degradation within 35 days. Importantly, when exposed to physiological pH conditions, CAPs are transformed into bioactive hydroxyapatite, which benefits bone formation. Therefore, VC-SF/MC-CAPs showed significant potential as a local drug delivery system for treating osteomyelitis.
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Affiliation(s)
- Premchirakorn Phewchan
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, Thailand
- Center of Excellence for Innovation in Chemistry (PERCH-CIC), Department of Chemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Artit Laoruengthana
- Department of Orthopedics, Faculty of Medicine, Naresuan University, Phitsanulok, Thailand
| | - Supaporn Lamlertthon
- Department of Microbiology and Parasitology, Faculty of Medical Sciences, Naresuan University, Phitsanulok, Thailand
- The Center of Excellence in Medical Biotechnology, Naresuan University, Phitsanulok, Thailand
| | - Waree Tiyaboonchai
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, Thailand
- Center of Excellence for Innovation in Chemistry (PERCH-CIC), Department of Chemistry, Faculty of Science, Mahidol University, Bangkok, Thailand
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3
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Avraham Y, Shapira-Furman T, Saklani R, Van Heukelom B, Carmel M, Vorobiev L, Lipsker L, Zwas DR, Berry EM, Domb AJ. Sustained insulin treatment restoring metabolic status, body weight, and cognition in an anorexia nervosa-like animal model in mice. Behav Brain Res 2024; 466:115001. [PMID: 38642861 DOI: 10.1016/j.bbr.2024.115001] [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: 11/02/2023] [Revised: 04/12/2024] [Accepted: 04/13/2024] [Indexed: 04/22/2024]
Abstract
INTRODUCTION Anorexia Nervosa (AN) is a psycho-socio-biological disease characterized by severe weight loss as result of dieting and hyperactivity. Effective treatments are scarce, despite its significant prevalence and mortality. AN patients show lower basal insulin levels and increased metabolic clearance, leading to weight loss, cognitive deficits, and hormonal imbalances. Low-dose polymer insulin could potentially reverse these effects by restoring brain function, reducing fear of weight gain, encouraging food intake, and restoring fat depots. This study evaluates an insulin delivery system designed for sustained release and AN treatment. METHODS AN-like model was established through dietary restriction (DR). On days 1-25, mice were on DR, and on days 26-31 they were on ad libitum regimen. An insulin-loaded delivery system was administered subcutaneously (1% w/w insulin). The impact of insulin treatment on gene expression in the hippocampus (cognition, regulation of stress, neurogenesis) and hypothalamus (eating behavior, mood) was assessed. Behavioral assays were conducted to evaluate motor activity and cognitive function. RESULTS The delivery system demonstrated sustained insulin release, maintaining therapeutic plasma levels. Diet restriction mice treated with the insulin delivery system showed body weight restoration. Gene expression analysis revealed enhanced expression of CB1 and CB2 genes associated with improved eating behavior and cognition, while POMC expression was reduced. Insulin-polymer treatment restored cognitive function and decreased hyperactivity in the AN-like model. CONCLUSION The PSA-RA-based insulin delivery system effectively restores metabolic balance, body weight, and cognitive function in the AN model. Its ability to steadily release insulin makes it a promising candidate for AN treatment."
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Affiliation(s)
- Yosefa Avraham
- Department of Metabolism and Human Nutrition, Braun School of Public Health, Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel.
| | - Tovi Shapira-Furman
- Institute of Drug Research, School of Pharmacy Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel
| | - Ravi Saklani
- Institute of Drug Research, School of Pharmacy Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel
| | - Bob Van Heukelom
- Department of Neurology, Gelderse Vallei Hospital, 6716 RP, the Netherlands
| | - Moshe Carmel
- Department of Metabolism and Human Nutrition, Braun School of Public Health, Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel
| | - Lia Vorobiev
- Department of Metabolism and Human Nutrition, Braun School of Public Health, Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel
| | - Leah Lipsker
- Department of Metabolism and Human Nutrition, Braun School of Public Health, Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel
| | - Donna R Zwas
- Linda Joy Pollin Cardiovascular Wellness Center for Women, Heart Institute, Hadassah University Medical Center, Jerusalem, Israel
| | - Elliot M Berry
- Department of Metabolism and Human Nutrition, Braun School of Public Health, Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel
| | - Abraham J Domb
- Institute of Drug Research, School of Pharmacy Hadassah-Hebrew University Medical School, Jerusalem 91120, Israel
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Florczyk A, Krajcer A, Wójcik K, Lewandowska-Łańcucka J. Innovative Vancomycin-Loaded Hydrogel-Based Systems - New Opportunities for the Antibiotic Therapy. Int J Nanomedicine 2024; 19:3991-4005. [PMID: 38720939 PMCID: PMC11078026 DOI: 10.2147/ijn.s443051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 04/17/2024] [Indexed: 05/12/2024] Open
Abstract
Purpose Surgical site infections pose a significant challenge for medical services. Systemic antibiotics may be insufficient in preventing bacterial biofilm development. With the local administration of antibiotics, it is easier to minimize possible complications, achieve drugs' higher concentration at the injured site, as well as provide their more sustained release. Therefore, the main objective of the proposed herein studies was the fabrication and characterization of innovative hydrogel-based composites for local vancomycin (VAN) therapy. Methods Presented systems are composed of ionically gelled chitosan particles loaded with vancomycin, embedded into biomimetic collagen/chitosan/hyaluronic acid-based hydrogels crosslinked with genipin and freeze-dried to serve in a flake/disc-like form. VAN-loaded carriers were characterized for their size, stability, and encapsulation efficiency (EE) using dynamic light scattering technique, zeta potential measurements, and UV-Vis spectroscopy, respectively. The synthesized composites were tested in terms of their physicochemical and biological features. Results Spherical structures with sizes of about 200 nm and encapsulation efficiencies reaching values of approximately 60% were obtained. It was found that the resulting particles exhibit stability over time. The antibacterial activity of the developed materials against Staphylococcus aureus was established. Moreover, in vitro cell culture study revealed that the surfaces of all prepared systems are biocompatible as they supported the proliferation and adhesion of the model MG-63 cells. In addition, we have demonstrated significantly prolonged VAN release while minimizing the initial burst effect for the composites compared to bare nanoparticles and verified their desired physicochemical features during swellability, and degradation experiments. Conclusion It is expected that the developed herein system will enable direct delivery of the antibiotic at an exposed to infections surgical site, providing drugs sustained release and thus will reduce the risk of systemic toxicity. This strategy would both inhibit biofilm formation and accelerate the healing process.
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Affiliation(s)
- Aleksandra Florczyk
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Kraków, Poland
| | - Aleksandra Krajcer
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Kraków, Poland
| | - Kinga Wójcik
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
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Abdel-Haq M, Ojha SK, Hamoudi W, Kumar A, Tripathi MK, Khaliulin I, Domb AJ, Amal H. Effects of extended-release 7-nitroindazole gel formulation treatment on the behavior of Shank3 mouse model of autism. Nitric Oxide 2023; 140-141:41-49. [PMID: 37714296 DOI: 10.1016/j.niox.2023.09.003] [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: 08/20/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/17/2023]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by behavioral deficits such as abnormalities in communication, social interaction, anxiety, and repetitive behavior. We have recently shown that the Shank3 mutation in mice representing a model of ASD causes excessive nitric oxide (NO) levels and aberrant protein S-nitrosylation. Further, 10-day daily injections of 7-NI, a neuronal nitric oxide synthase inhibitor, into Shank3Δ4-22 and Cntnap2(-/-) mutant mice (models of ASD) at a dose of 80 mg/kg reversed the manifestations of ASD phenotype. In this study, we proposed an extended release of 7-NI using a novel drug system. Importantly, unlike the intraperitoneal injections, our new preparation of poly (sebacic acid-co-ricinoleic acid) (PSARA) gel containing 7-NI was injected subcutaneously into the mutant mice only once. The animals underwent behavioral testing starting from day 3 post-injection. It should be noted that the developed PSARA gel formulation allowed a slow release of 7-NI maintaining the plasma level of the drug at ∼45 μg/ml/day. Further, we observed improved memory and social interaction and reduced anxiety-like behavior in Shank3 mutant mice. This was accompanied by a reduction in 3-nitrotyrosine levels (an indicator of nitrative/nitrosative stress) in plasma. Overall, we suggest that our single-dose formulation of PSARA gel is very efficient in rendering a therapeutic effect of 7-NI for at least 10 days. This approach may provide in the future a rational design of an effective ASD treatment using 7-NI and its clinical translation.
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Affiliation(s)
- Muhammad Abdel-Haq
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Shashank Kumar Ojha
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Wajeha Hamoudi
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Awanish Kumar
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Manish Kumar Tripathi
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Igor Khaliulin
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Abraham J Domb
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel.
| | - Haitham Amal
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel.
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6
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Yang Y, Su S, Liu S, Liu W, Yang Q, Tian L, Tan Z, Fan L, Yu B, Wang J, Hu Y. Triple-functional bone adhesive with enhanced internal fixation, bacteriostasis and osteoinductive properties for open fracture repair. Bioact Mater 2023; 25:273-290. [PMID: 36825223 PMCID: PMC9941416 DOI: 10.1016/j.bioactmat.2023.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/18/2023] [Accepted: 01/28/2023] [Indexed: 02/11/2023] Open
Abstract
At present, effective fixation and anti-infection implant materials represent the mainstay for the treatment of open fractures. However, external fixation can cause nail tract infections and is ineffective for fixing small fracture fragments. Moreover, closed reduction and internal fixation during the early stage of injury can lead to potential bone infection, conducive to bone nonunion and delayed healing. Herein, we designed a bone adhesive with anti-infection, osteogenic and bone adhesion fixation properties to promote reduction and fixation of open fractures and subsequent soft tissue repair. It was prepared by the reaction of gelatin (Gel) and oxidized starch (OS) with vancomycin (VAN)-loaded mesoporous bioactive glass nanoparticles (MBGNs) covalently cross-linked with Schiff bases. Characterization and adhesion experiments were conducted to validate the successful preparation of the Gel-OS/VAN@MBGNs (GOVM-gel) adhesive. Meanwhile, in vitro cell experiments demonstrated its good antibacterial effects with the ability to stimulate bone marrow mesenchymal stem cell (BMSCs) proliferation, upregulate the expression of alkaline phosphatase (ALP) and osteogenic proteins (RunX2 and OPN) and enhance the deposition of calcium nodules. Additionally, we established a rat skull fracture model and a subcutaneous infection model. The histological analysis showed that bone adhesive enhanced osteogenesis, and in vivo experiments demonstrated that the number of inflammatory cells and bacteria was significantly reduced. Overall, the adhesive could promote early reduction of fractures and antibacterial and osteogenic effects, providing the foothold for treatment of this patient population.
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Affiliation(s)
- Yusheng Yang
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Shenghui Su
- Department of Orthopaedics, Ningde Municipal Hospital, Ningde Normal University, Ningde, Fujian Province, 352100, China
| | - Shencai Liu
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Weilu Liu
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Qinfeng Yang
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Liangjie Tian
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Zilin Tan
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Lei Fan
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China,Corresponding author.
| | - Jian Wang
- Division of Orthopaedics Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China,Corresponding author.
| | - Yanjun Hu
- Division of Orthopaedics and Traumatology, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, 510515, China,Corresponding author.
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Abstract
Polyanhydrides (PAs) are a class of synthetic biodegradable polymers employed as controlled drug delivery vehicles. They can be synthesized and scaled up from low-cost starting materials. The structure of PAs can be manipulated synthetically to meet desirable characteristics. PAs are biocompatible, biodegradable, and generate nontoxic metabolites upon degradation, which are easily eliminated from the body. The rate of water penetrating into the polyanhydride (PA) matrix is slower than the anhydride bond cleavage. This phenomenon sets PAs as "surface-eroding drug delivery carriers." Consequently, a variety of PA-based drug delivery carriers in the form of solid implants, pasty injectable formulations, microspheres, nanoparticles, etc. have been developed for the sustained release of small molecule drugs, and vaccines, peptide drugs, and nucleic acid-based active agents. The rate of drug delivery is often controlled by the polymer erosion rate, which is influenced by the polymer structure and composition, crystallinity, hydrophobicity, pH of the release medium, device size, configuration, etc. Owing to the above-mentioned interesting physicochemical and mechanical properties of PAs, the present review focuses on the advancements made in the domain of synthetic biodegradable biomedical PAs for therapeutic delivery applications. Various classes of PAs, their structures, their unique characteristics, their physicochemical and mechanical properties, and factors influencing surface erosion are discussed in detail. The review also summarizes various methods involved in the synthesis of PAs and their utility in the biomedical domain as drug, vaccine, and peptide delivery carriers in different formulations are reviewed.
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Affiliation(s)
- Pulikanti Guruprasad Reddy
- School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, and Centre for Cannabis Research and the Institute of Drug Research, The Alex Grass Centre for Drug Design and Synthesis, Jerusalem 9112002, Israel
| | - Abraham J Domb
- School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, and Centre for Cannabis Research and the Institute of Drug Research, The Alex Grass Centre for Drug Design and Synthesis, Jerusalem 9112002, Israel
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8
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Arun Y, Ghosh R, Domb AJ. Poly(ester-anhydrides) Derived from Esters of Hydroxy Acid and Cyclic Anhydrides. Biomacromolecules 2022; 23:3417-3428. [PMID: 35881559 PMCID: PMC9516692 DOI: 10.1021/acs.biomac.2c00542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The alternating architecture and hydrophobic side chains
hinder
hydrolytic cleavage and anhydride interchange in poly(sebacic acid-ricinoleic
acid) (P(SA-RA)), which provides stable polyanhydrides at room temperature.
In this report, a series of polyanhydrides were designed to investigate
the effect of ester bonds, hydrophobic side chains, phenyl moieties,
and their distance from anhydride bonds on their stability and properties.
Polyanhydrides with alternating architecture are constructed by the
polymerization of ester-diacids prepared from ricinoleic or other
hydroxy acids with anhydrides such as succinic, maleic, and phthalic
anhydrides. The hydrophobic side chains are designed closer to anhydride
bonds to investigate hindrance to hydrolytic cleavage and anhydride
interchange. Polyanhydrides were obtained by the activation of ester-diacid
using acetic anhydride followed by melt condensation. The reactions
were monitored by NMR, Fourier transform infrared (FTIR), and gel
permeation chromatography (GPC). The synthesized poly(ester-anhydride)s
with a shorter chain length compared to P(SA-RA) were stable at room
temperature. The hydrolytic degradation studies reveal that the phenyl
moiety present in poly(ricinoleic acid phthalate) (PRAP) and poly(hydroxystearic
acid phthalate) (PHSAP) reduces the hydrolysis of anhydride bonds.
Poly(hydroxyoctanoic acid succinate) (PHOAS) demonstrates the highest
molecular weight of all tested polymers. The results reveal that the
presence of hydrophobic side chains, phenyl moieties, and their distance
from anhydride bonds significantly improves the stability. These stable
polyanhydrides can provide convenience to use in control drug-delivery
applications. The in vitro drug release study using
ibuprofen shows that polymers with aromatic units such as PRAP and
PHSAP establish sustained release, which presents more than 50 and
40% of ibuprofen over a period of 28 days.
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Affiliation(s)
- Yuvaraj Arun
- The Alex Grass Center for Drug Design & Synthesis and the Center for Cannabis Research, School of Pharmacy, Institute of Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Radhakanta Ghosh
- The Alex Grass Center for Drug Design & Synthesis and the Center for Cannabis Research, School of Pharmacy, Institute of Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
| | - Abraham J Domb
- The Alex Grass Center for Drug Design & Synthesis and the Center for Cannabis Research, School of Pharmacy, Institute of Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112001, Israel
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9
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Synthesis of Aliphatic Polyanhydrides with Controllable and Reproducible Molecular Weight. Pharmaceutics 2022; 14:pharmaceutics14071403. [PMID: 35890298 PMCID: PMC9325212 DOI: 10.3390/pharmaceutics14071403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/30/2022] [Accepted: 06/30/2022] [Indexed: 01/04/2023] Open
Abstract
Polyanhydrides have been synthesized for decades by melt-polycondensation of diacid monomers and 5 to >10 times mole excess acetic anhydride to diacid monomers to form polymers with a polydispersity ranging from 2.5 to 6 and low reproducibility. Hydrophobic segments in polyanhydrides are beneficial to hinder the characteristic hydrolytic cleavage of an anhydride bond that provides stable polyanhydrides at room temperature. The objective of this work is to synthesize aliphatic polyanhydrides with various hydrophobic segments, controllable and reproducible molecular weight, and low polydispersity that are essential for potential use as drug carriers. A series of polyanhydrides of suberic, azelaic, sebacic, and dodecanedioic acids with controlled molecular weight, reduced polydispersity, and standard deviation of molecular weights, have been synthesized. All synthesized polyanhydrides were thoroughly characterized by NMR, Fourier transform infrared spectroscopy, and gel permeation chromatography. Molecular weights of the synthesized polyanhydrides are highly controllable, depending on the degree of activation of the dicarboxylic acid monomers, i.e., the amount of acetic anhydride used during synthesis. Polyanhydrides have been synthesized in triplicate by melt-polycondensation, using various mole ratios of acetic anhydride to diacids. The standard deviation of the molecular weights of the polyanhydrides is minute when using 1 equivalent of acetic anhydride during the activation of dicarboxylic acids, whereas if excess acetic anhydride is used, the standard deviation is very high. The effect of safe and natural inorganic catalysts, Calcium oxide, Zinc oxide, and Calcium carbonate on polymerization is also studied. As-synthesized poly(sebacic acid) can offer convenience to use in controlled drug delivery applications. In vitro drug release study using Temozolamide (TMZ), a medication used to treat brain tumors such as glioblastoma and anaplastic astrocytoma, shows 14% TMZ release after the first hour and 70% release over one day from the poly(sebacic acid) wafers.
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10
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Niewolik D, Bednarczyk-Cwynar B, Ruszkowski P, Kazek-Kęsik A, Dzido G, Jaszcz K. Biodegradable and Bioactive Carriers Based on Poly(betulin disuccinate-co-sebacic Acid) for Rifampicin Delivery. Pharmaceutics 2022; 14:pharmaceutics14030579. [PMID: 35335954 PMCID: PMC8953921 DOI: 10.3390/pharmaceutics14030579] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 01/27/2023] Open
Abstract
This paper describes the preparation and characterization of polymer-drug systems based on polymeric microspheres obtained from poly(betulin disuccinate-co-sebacic acid). The active compound that was coupled to the betulin-based carriers was rifampicin (RIF), an ansamycin drug used in the treatment of tuberculosis. Poly(betulin disuccinate-co-sebacic acid) microspheres were prepared using a solvent evaporation technique from copolymers obtained by polycondensation of betulin disuccinate (DBB) and sebacic acid (SEB). The content of sebacic acid in the copolymers was 20, 40, 60 and 80 wt%, respectively. Small and large rifampicin-loaded microspheres were obtained for each of the copolymers. The initial amount of drug was 10, 30 or 50 wt%, based on the weight of the polymer. Particles obtained in this study were round in shape with diameter in the range of 2–21 μm and of orange to red colour originating from rifampicin. The RIF encapsulation efficacy varied from 7% to 33%. Drug loading varied from 2% to 13% and increased at a higher RIF ratio. The highest degree of drug loading was observed for large particles, in which the initial amount of drug (at the particle preparation stage) was 50 wt%. Microspheres prepared from betulin-based polyanhydrides may have significant applications in drug delivery systems. The concentration of loaded drug was enough to obtain bactericidal effects against reference S. Aureus ATCC 25923 bacteria.
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Affiliation(s)
- Daria Niewolik
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland;
- Correspondence:
| | - Barbara Bednarczyk-Cwynar
- Department of Organic Chemistry, Poznan University of Medical Science, Grunwaldzka 6, 60-780 Poznan, Poland;
| | - Piotr Ruszkowski
- Department of Pharmacology, Poznan University of Medical Science, Rokietnicka 5a, 60-806 Poznan, Poland;
| | - Alicja Kazek-Kęsik
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Silesian University of Technology, B. Krzywoustego 6, 44-100 Gliwice, Poland;
- Biotechnology Centre, Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland
| | - Grzegorz Dzido
- Department of Chemical Engineering and Process Design, Silesian University of Technology, M. Strzody 7, 44-100 Gliwice, Poland;
| | - Katarzyna Jaszcz
- Department of Physical Chemistry and Technology of Polymers, Silesian University of Technology, M. Strzody 9, 44-100 Gliwice, Poland;
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11
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Mulazzi M, Campodoni E, Bassi G, Montesi M, Panseri S, Bonvicini F, Gentilomi GA, Tampieri A, Sandri M. Medicated Hydroxyapatite/Collagen Hybrid Scaffolds for Bone Regeneration and Local Antimicrobial Therapy to Prevent Bone Infections. Pharmaceutics 2021; 13:pharmaceutics13071090. [PMID: 34371782 PMCID: PMC8309148 DOI: 10.3390/pharmaceutics13071090] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/29/2021] [Accepted: 07/12/2021] [Indexed: 12/15/2022] Open
Abstract
Microbial infections occurring during bone surgical treatment, the cause of osteomyelitis and implant failures, are still an open challenge in orthopedics. Conventional therapies are often ineffective and associated with serious side effects due to the amount of drugs administered by systemic routes. In this study, a medicated osteoinductive and bioresorbable bone graft was designed and investigated for its ability to control antibiotic drug release in situ. This represents an ideal solution for the eradication or prevention of infection, while simultaneously repairing bone defects. Vancomycin hydrochloride and gentamicin sulfate, here considered for testing, were loaded into a previously developed and largely investigated hybrid bone-mimetic scaffold made of collagen fibers biomineralized with magnesium doped-hydroxyapatite (MgHA/Coll), which in the last ten years has widely demonstrated its effective potential in bone tissue regeneration. Here, we have explored whether it can be used as a controlled local delivery system for antibiotic drugs. An easy loading method was selected in order to be reproducible, quickly, in the operating room. The maintenance of the antibacterial efficiency of the released drugs and the biosafety of medicated scaffolds were assessed with microbiological and in vitro tests, which demonstrated that the MgHA/Coll scaffolds were safe and effective as a local delivery system for an extended duration therapy—promising results for the prevention of bone defect-related infections in orthopedic surgeries.
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Affiliation(s)
- Manuela Mulazzi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Elisabetta Campodoni
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
- Correspondence: (E.C.); (M.S.); Tel.: +39-0546-699761 (E.C. & M.S.)
| | - Giada Bassi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Monica Montesi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Silvia Panseri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Francesca Bonvicini
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy; (F.B.); (G.A.G.)
| | - Giovanna Angela Gentilomi
- Department of Pharmacy and Biotechnology, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy; (F.B.); (G.A.G.)
- Operative Unit of Microbiology, IRCCS St. Orsola Hospital, University of Bologna, Via Massarenti 9, 40138 Bologna, Italy
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
| | - Monica Sandri
- Institute of Science and Technology for Ceramics, National Research Council of Italy, ISTEC-CNR, 48018 Faenza, Italy; (M.M.); (G.B.); (M.M.); (S.P.); (A.T.)
- Correspondence: (E.C.); (M.S.); Tel.: +39-0546-699761 (E.C. & M.S.)
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12
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Non-Absorbable Oral Gentamicin Sulphate: Biopharmaceutical and Dosage Form Evaluation. EUROPEAN PHARMACEUTICAL JOURNAL 2021. [DOI: 10.2478/afpuc-2020-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Gentamicin sulphate is an antibiotic belonging to the aminoglycosides and to class III of the Biopharmaceutical Classification System (BCS). Gentamicin sulphate is highly water soluble, but has very low intestinal permeability. The wide use is because of its broad spectrum of activity. In the current study, the suitability of administering gentamicin sulphate orally for local action against susceptible gastrointestinal tract (GIT) bacteria was investigated. The possibility of the drug escaping into the systemic circulation even in the presence of some permeation enhancers was ascertained. Representatives of potential GIT bacteria pathogens were evaluated for their susceptibility to the drug at concentrations obtainable in the GIT using standard microbiological methods. Dose levels that will inhibit these potential bacteria pathogens were also established, as well as the frequency of their administration. Different batches of oral capsules of 250 mg gentamicin sulphate were formulated and their release profiles ascertained using standard methods. The results showed that the selected representatives of the GIT potential pathogenic bacteria were all susceptible to gentamicin sulphate. The drug at its plausible dosage levels of 14.28 mg/kg (1,000 mg/70 kg), 10.71 mg/kg (750 mg/70 kg) and 7.14 mg/kg (500 mg/70 kg) did not cross the mucosal barrier into the systemic circulation even in the presence of some permeation enhancers. The drug's frequency of administration were found to be on 8-hourly bases. Gentamicin sulphate (250 mg) granules formulated with polyethylene glycol (PEG 4000) as granulating aid were quick drying because the granules were not hygroscopic. The formulated gentamicin sulphate capsule batch released enough concentration of the drug that inhibits the test organism within 2 min of dissolution. The above stated doses are acceptable in the dosage form design; it is possible to formulate non-absorbable oral gentamicin sulphate dosage form for local activity in the GIT using existing conventional solid dosage formulating equipment.
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13
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An intravenous application of magnetic nanoparticles for osteomyelitis treatment: An efficient alternative. Int J Pharm 2020; 592:119999. [PMID: 33190790 DOI: 10.1016/j.ijpharm.2020.119999] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 10/01/2020] [Accepted: 10/17/2020] [Indexed: 01/06/2023]
Abstract
The infection of bone and bone marrow is called osteomyelitis. Treatment is difficult since antibiotics can not reach with enough concentration to the infected area. For the first time in this study, we have developed gentamicin-loaded magnetic gelatin nanoparticles (GMGNPs) for nanocarrier-mediated and magnetically targeted osteomyelitis therapy. Gelatin, genipin, and magnetite were used for preparation of that novel carrier system due to their biodegradable and biocompatible properties. Cross-linking degree of gelatin nanoparticles, concentration of magnetite nanoparticles, and adsorbed drug amount were optimized. Furthermore, nanoparticles were characterized and the drug release profile was determined. The osteomyelitis model was constituted in the proximal tibia of rats. The therapeutic potential of GMGNPs on rats was monitored via X-Ray radiography and hematological and histopathological analyses were performed. According to the results, 110.3 ± 8.2 µg gentamicin/mg GMGNPs were used, hydrodynamic size was measured as 253.7 ± 11.8 nm, and GMGNPs have controlled drug release profile. Based on in vivo and ex vivo studies, after six doses of GMGNPs treatment, abscess began to heal and the integrity of periost and bone began to reconstruct. In conclusion, it can be suggested that GMGNPs could provide efficient therapy for osteomyelitis.
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Ramot Y, Steiner M, Amouyal N, Lavie Y, Klaiman G, Domb AJ, Nyska A, Hagigit T. Treatment of contaminated radial fracture in Sprague-Dawley rats by application of a degradable polymer releasing gentamicin. J Toxicol Pathol 2020; 34:11-22. [PMID: 33627941 PMCID: PMC7890171 DOI: 10.1293/tox.2020-0041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/06/2020] [Indexed: 01/19/2023] Open
Abstract
Fracture-related infections remain a leading cause of morbidity and mortality. We aimed to establish a simple contaminated radial osteotomy model to assess the efficacy of a biodegradable polymer poly(sebacic-co-ricinoleic acid) [p(SA-RA)] containing 20% w/w gentamicin. A unilateral transverse osteotomy was induced in Sprague-Dawley (SD) rats, followed by application of Staphylococcus aureus suspension over the fracture. After successfully establishing the contaminated open fracture model, we treated the rats either systemically (intraperitoneal cefuroxime), locally with p(SA-RA) containing gentamicin, or both. Control groups included non-contaminated group and contaminated groups that were either untreated or treated with the polymer alone. After 4 weeks, the bones were subjected to micro-CT scanning and microbiological and histopathology evaluations. Micro-CT analysis revealed similar changes in the group subjected to both local and systemic treatment as in the non-contaminated control group. Lack of detectable bacterial growth was noted in most animals of the group subjected to both local and systemic treatment, and all samples were negative for S. aureus. Histopathological evaluation revealed that all treatment modalities containing antibiotics were highly effective in reducing infection and promoting callus repair, resulting in early bone healing. While p(SA-RA) containing gentamicin treatment showed better results than cefuroxime, the combination of local and systemic treatment displayed the highest therapeutic potential in this model.
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Affiliation(s)
- Yuval Ramot
- Faculty of Medicine, The Hebrew University of Jerusalem, Israel; The Department of Dermatology, Hadassah Medical Center, POB 12000, Jerusalem, 9112001, Israel
| | - Michal Steiner
- Envigo CRS (Israel), Einstein Street, 13B, P.O.B 4019, Science Park, Ness Ziona, Israel
| | - Netanel Amouyal
- Envigo CRS (Israel), Einstein Street, 13B, P.O.B 4019, Science Park, Ness Ziona, Israel
| | - Yossi Lavie
- Envigo CRS (Israel), Einstein Street, 13B, P.O.B 4019, Science Park, Ness Ziona, Israel
| | - Guy Klaiman
- Envigo CRS (Israel), Einstein Street, 13B, P.O.B 4019, Science Park, Ness Ziona, Israel
| | - Abraham J Domb
- Institute of Drug Research, School of Pharmacy-Faculty of Medicine, The Hebrew University of Jerusalem, POB 12000, Jerusalem, 9112001 Israel
| | - Abraham Nyska
- Consultant in Toxicologic Pathology, Tel Aviv and Tel Aviv University, Yehuda HaMaccabi 31, Tel Aviv, 6200515, Israel
| | - Tal Hagigit
- Dexcel Pharma Technologies Ltd., 1 Dexcel St., Or-Akiva, 3060000, Israel
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15
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Bao L, Li X, Qi Y, Wang Z, Li J. PEG/SBA-15-containing acrylic bone cement with enhanced drug release. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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16
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Design and Characterization of Injectable Poly(Lactic-Co-Glycolic Acid) Pastes for Sustained and Local Drug Release. Pharm Res 2020; 37:36. [PMID: 31965346 DOI: 10.1007/s11095-019-2730-4] [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] [Received: 08/29/2019] [Accepted: 10/31/2019] [Indexed: 01/09/2023]
Abstract
PURPOSE We describe the preparation of injectable polymeric paste (IPP) formulations for local and sustained release of drugs. Furthermore, we include the characterization and possible applications of such pastes. Particular attention is paid to characteristics relevant to the successful clinical formulation development, such as viscosity, injectability, degradation, drug release, sterilization, stability performance and pharmacokinetics. METHODS Paste injectability was characterized using measured viscosity and the Hagen-Poiseuille equation to determine injection forces. Drug degradation, release and formulation stability experiments were performed in vitro and drug levels were quantified using HPLC-UV methods. Pharmacokinetic evaluation of sustained-release lidocaine IPPs used five groups of six rats receiving increasing doses subcutaneously. An anti-cancer formulation was evaluated in a subcutaneous tumor xenograft mouse model. RESULTS The viscosity and injectability of IPPs could be controlled by changing the polymeric composition. IPPs demonstrated good long-term stability and tunable drug-release with low systemic exposure in vivo in rats. Preliminary data in a subcutaneous tumor model points to a sustained anticancer effect. CONCLUSIONS These IPPs are tunable platforms for local and sustained delivery of drugs and have potential for further clinical development to treat a number of diseases.
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17
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Deliormanlı AM, Türk M. Flow Behavior and Drug Release Study of Injectable Pluronic F-127 Hydrogels containing Bioactive Glass and Carbon-Based Nanopowders. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01346-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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18
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Uskoković V. Mechanism of formation governs the mechanism of release of antibiotics from calcium phosphate nanopowders and cements in a drug-dependent manner. J Mater Chem B 2019; 7:3982-3992. [PMID: 31681475 PMCID: PMC6824273 DOI: 10.1039/c9tb00444k] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The kinetics of drug release from hydroxyapatite (HAp) cements could be tuned by controlling the kinetics of crystallization of their HAp precursor powders during synthesis. Here it is shown that this history of formation affects not only the kinetics, but also the mechanism of release. Cements composed of two HAp powders precipitated under different conditions, one (HAp2) taking twice longer to transform from the amorphous to the crystalline state than the other (HAp1), were mixed at different ratios to tune their drug release kinetics and tested for the release mechanism in conjunction with compositional and microstructural analyses. While the cement component converting to the amorphous phase during gelation (HAp2) exhibited a faster, but also more anomalous, non-Fickian mechanism of release of vancomycin, the cement component retaining its crystalline state all throughout gelation, setting and hardening (HAp1) stabilized at the ideal, Fickian diffusion case corresponding to the Korsmeyer-Peppas exponent value of 0.45 ± 0.02. This effect got reversed for the other antibiotic studied as a drug, ciprofloxacin, in which case HAp2 exhibited the ideal, Fickian diffusion with n = 0.45 ± 0.02 and the increase in the content of the cement component retaining its crystallinity during gelation, setting and hardening (HAp1) steadily shifted the mechanism of release to more anomalous, non-Fickian types. This has indicated that the molecular structure of the drug is an essential determinant of the mechanism of release and that the design of a carrier for a universally tunable release of drugs based on the passive transport is likely impossible. Preliminary assays involving the addition of chitosan or gelatin as polymeric components to HAp led to the inclusion of swelling and erosion as additional effects by which the drug escapes the carrier and shifted the release toward less diffusional and more multimodal mechanisms. With regard to the microstructural and compositional effects governing the release mechanism and kinetics, the retention of a finite concentration of slit-like pores of the amorphous precursor in HAp2 and its lower surface energy and lesser drug binding potential in the gelled, amorphous state, but also its possibly less stable and more diffusive particle surface and higher structural water content were elaborated as potential reasons explaining the distinct rates and mechanisms of release from the two HAp powders with different histories of formation.
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Affiliation(s)
- Vuk Uskoković
- Department of Bioengineering, University of Illinois, Chicago, IL, USA
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19
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(Epoxidized castor oil – citric acid) copolyester as a candidate polymer for biomedical applications. JOURNAL OF POLYMER RESEARCH 2019. [DOI: 10.1007/s10965-019-1814-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Steinman NY, Domb AJ. Injectable Pasty Biodegradable Polyesters Derived from Castor Oil and Hydroxyl-Acid Lactones. J Pharmacol Exp Ther 2019; 370:736-741. [DOI: 10.1124/jpet.119.259077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 05/14/2019] [Indexed: 12/17/2022] Open
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21
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Macha IJ, Ben-Nissan B, Vilchevskaya EN, Morozova AS, Abali BE, Müller WH, Rickert W. Drug Delivery From Polymer-Based Nanopharmaceuticals-An Experimental Study Complemented by Simulations of Selected Diffusion Processes. Front Bioeng Biotechnol 2019; 7:37. [PMID: 30906737 PMCID: PMC6418005 DOI: 10.3389/fbioe.2019.00037] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/13/2019] [Indexed: 11/17/2022] Open
Abstract
The success of medical therapy depends on the correct amount and the appropriate delivery of the required drugs for treatment. By using biodegradable polymers a drug delivery over a time span of weeks or even months is made possible. This opens up a variety of strategies for better medication. The drug is embedded in a biodegradable polymer (the "carrier") and injected in a particular position of the human body. As a consequence of the interplay between the diffusion process and the degrading polymer the drug is released in a controlled manner. In this work we study the controlled release of medication experimentally by measuring the delivered amount of drug within a cylindrical shell over a long time interval into the body fluid. Moreover, a simple continuum model of the Fickean type is initially proposed and solved in closed-form. It is used for simulating some of the observed release processes for this type of carrier and takes the geometry of the drug container explicitly into account. By comparing the measurement data and the model predictions diffusion coefficients are obtained. It turns out that within this simple model the coefficients change over time. This contradicts the idea that diffusion coefficients are constants independent of the considered geometry. The model is therefore extended by taking an additional absorption term into account leading to a concentration dependent diffusion coefficient. This could now be used for further predictions of drug release in carriers of different shape. For a better understanding of the complex diffusion and degradation phenomena the underlying physics is discussed in detail and even more sophisticated models involving different degradation and mass transport phenomena are proposed for future work and study.
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Affiliation(s)
- Innocent J. Macha
- Department of Mechanical and Industrial Engineering, University of Dar es Salaam, Dar es Salaam, Tanzania
- Institute of Mechanics, Faculty V of Mechanical Engineering and Transport Systems, Berlin University of Technology, LKM, Berlin, Germany
| | - Besim Ben-Nissan
- Faculty of Science, School of Life Sciences, University of Technology Sydney, Sydney, NSW, Australia
| | - Elena N. Vilchevskaya
- Applied Research Laboratory, Department of Theoretical Mechanics, Institute for Problems in Mechanical Engineering of the Russian Academy of Sciences and Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Anna S. Morozova
- Applied Research Laboratory, Department of Theoretical Mechanics, Institute for Problems in Mechanical Engineering of the Russian Academy of Sciences and Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia
| | - Bilen Emek Abali
- Institute of Mechanics, Faculty V of Mechanical Engineering and Transport Systems, Berlin University of Technology, LKM, Berlin, Germany
| | - Wolfgang H. Müller
- Institute of Mechanics, Faculty V of Mechanical Engineering and Transport Systems, Berlin University of Technology, LKM, Berlin, Germany
| | - W. Rickert
- Institute of Mechanics, Faculty V of Mechanical Engineering and Transport Systems, Berlin University of Technology, LKM, Berlin, Germany
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22
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Chitemere RP, Stafslien S, Rasulev B, Webster DC, Quadir M. Soysome: A Surfactant-Free, Fully Biobased, Self-Assembled Platform for Nanoscale Drug Delivery Applications. ACS APPLIED BIO MATERIALS 2018; 1:1830-1841. [DOI: 10.1021/acsabm.8b00317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ruvimbo P. Chitemere
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Shane Stafslien
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Bakhtiyor Rasulev
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Dean C. Webster
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Mohiuddin Quadir
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
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23
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Curcumin loaded biomimetic composite graft for faster regeneration of skin in diabetic wounds. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.06.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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24
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Hassani Besheli N, Damoogh S, Zafar B, Mottaghitalab F, Motasadizadeh H, Rezaei F, Shokrgozar MA, Farokhi M. Preparation of a Codelivery System Based on Vancomycin/Silk Scaffold Containing Silk Nanoparticle Loaded VEGF. ACS Biomater Sci Eng 2018; 4:2836-2846. [DOI: 10.1021/acsbiomaterials.8b00149] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Negar Hassani Besheli
- School of Chemical Engineering, Collage of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran 1417466191, Iran
| | - Sheyda Damoogh
- National Cell Bank of Iran, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran 1316943551, Iran
| | - Bahareh Zafar
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran 14177-55469, Iran
| | - Fatemeh Mottaghitalab
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran 1417613151, Iran
| | - Hamidreza Motasadizadeh
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Fatemeh Rezaei
- Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran 15875/4413, Iran
| | - Mohammad Ali Shokrgozar
- National Cell Bank of Iran, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran 1316943551, Iran
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, P.O. Box 1316943551, Tehran 1316943551, Iran
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25
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Zhang J, Zhao M, Tian X, Lv X, Chen Z, Zhou K, Ren X, Zhang P, Mei X. Protein-mediated mineralization of edaravone into injectable, pH-sensitive microspheres used for potential minimally invasive treatment of osteomyelitis. NEW J CHEM 2018. [DOI: 10.1039/c7nj04745b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Osteomyelitis, an infection within bone, is difficult to treat.
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Affiliation(s)
- Jie Zhang
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Mengen Zhao
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Xiaohan Tian
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Xinyan Lv
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Zhenhua Chen
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Kang Zhou
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Xiuli Ren
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Peng Zhang
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
| | - Xifan Mei
- Jinzhou Medical University
- Jinzhou
- People's Republic of China
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26
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Chen S, Ge L, Mueller A, Carlson MA, Teusink MJ, Shuler FD, Xie J. Twisting electrospun nanofiber fine strips into functional sutures for sustained co-delivery of gentamicin and silver. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2017; 13:1435-1445. [PMID: 28185940 PMCID: PMC5451297 DOI: 10.1016/j.nano.2017.01.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 01/24/2017] [Accepted: 01/26/2017] [Indexed: 02/07/2023]
Abstract
Surgical site infections (SSIs) represent the most common nosocomial infection among surgical patients. In order to prevent SSIs in a sustained manner and lessen side effects, we developed a twisting method for generation of nanofiber-based sutures capable of simultaneous delivery of silver and gentamicin. The prepared sutures are composed of core-sheath nanofibers with gentamicin/pluronic F127 in the core and silver/PCL in the sheath produced by co-axial electrospinning. The diameters of obtained sutures range from ~80 μm to ~1.2 mm. The in vitro release profiles of silver and gentamicin exhibit an initial burst followed by a sustained release over 5 weeks. The co-encapsulated sutures were able to kill bacteria much more effectively than gentamicin or silver alone loaded nanofiber sutures, without showing obvious impact on proliferation and migration of dermal fibroblasts and keratinocytes. The gentamicin and silver co-loaded PCL nanofiber sutures may hold great potential for prevention of SSIs.
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Affiliation(s)
- Shixuan Chen
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, United States
| | - Liangpeng Ge
- Chongqing Academy of Animal Sciences and Key Laboratory of Pig Industry Sciences, Ministry of Agriculture, Chongqing, China
| | - Aubrey Mueller
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, United States
| | - Mark A Carlson
- Department of Surgery-General Surgery, University of Nebraska Medical Center, Omaha, NE, United States
| | - Matthew J Teusink
- Department of Orthopaedic Surgery and Rehabilitation, University of Nebraska Medical Center, Omaha, NE, United States
| | - Franklin D Shuler
- Department of Orthopaedic Surgery, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, United States.
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27
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Hassani Besheli N, Mottaghitalab F, Eslami M, Gholami M, Kundu SC, Kaplan DL, Farokhi M. Sustainable Release of Vancomycin from Silk Fibroin Nanoparticles for Treating Severe Bone Infection in Rat Tibia Osteomyelitis Model. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5128-5138. [PMID: 28106379 DOI: 10.1021/acsami.6b14912] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The successful treatment of bone infections is a major challenge in the field of orthopedics. There are some common methods for treating bone infections, including systemic antibiotic administration, local nondegradable drug vehicles, and surgical debridement, and each of these approaches has advantages and disadvantages. In the present study, the antibiotic vancomycin (VANCO) was loaded in silk fibroin nanoparticles (SFNPs) and the complexes were then entrapped in silk scaffolds to form sustained drug delivery systems. The release kinetics of VANCO from SFNPs alone and when the SFNPs were entrapped in silk scaffolds were assessed at two different pH values, 4.5 and 7.4, that affected the release profiles of VANCO. Disk diffusion tests performed with pathogens causing osteomyelitis methicillin-resistant Staphylococcus aureus (MRSA) showed antibacterial activity of the released drug at two different pH values. Additionally, injection of 8 × 106 CFU MRSA in rat's tibia induced severe osteomyelitis disease. Radiographic and histopathological analyses were performed to evaluate the effectiveness of treatment after 6 weeks. The VANCO-loaded silk fibroin nanoparticles entrapped in scaffolds reduced bone infections at the defected site with better outcomes than the other treatment groups. In conclusion, the delivery system with good biocompatibility and sustained release properties would be appropriate for further study in the context of osteomyelitis disease.
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Affiliation(s)
- Negar Hassani Besheli
- School of Chemical Engineering, Collage of Engineering, University of Tehran , P.O. Box 11155-4563, Tehran 1417466191, Iran
| | - Fatemeh Mottaghitalab
- Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences , P.O. Box 14155-6451, Tehran 1417613151, Iran
| | - Masoud Eslami
- Materials Science & Engineering Department, Sharif University of Technology , P.O. Box 11365-9466, Tehran 145888-9694, Iran
| | - Mahdi Gholami
- Faculty of Pharmacy and Pharmaceutical Science Research Center, Tehran University of Medical Sciences , P.O. Box 14155-6451, Tehran 1417613151, Iran
| | - Subhas C Kundu
- 3Bs Research Group, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho , AvePark, Barco, Guimaraes 4805-017, Portugal
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University , 4 Colby Street, Medford, Massachusetts 02155, United States
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran , P.O. Box 1316943551, Tehran 1316943551, Iran
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Nandi SK, Bandyopadhyay S, Das P, Samanta I, Mukherjee P, Roy S, Kundu B. Understanding osteomyelitis and its treatment through local drug delivery system. Biotechnol Adv 2016; 34:1305-1317. [DOI: 10.1016/j.biotechadv.2016.09.005] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/12/2016] [Accepted: 09/27/2016] [Indexed: 02/08/2023]
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Hess U, Mikolajczyk G, Treccani L, Streckbein P, Heiss C, Odenbach S, Rezwan K. Multi-loaded ceramic beads/matrix scaffolds obtained by combining ionotropic and freeze gelation for sustained and tuneable vancomycin release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:542-553. [DOI: 10.1016/j.msec.2016.05.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 04/20/2016] [Accepted: 05/12/2016] [Indexed: 10/21/2022]
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Ter Boo GJA, Arens D, Metsemakers WJ, Zeiter S, Richards RG, Grijpma DW, Eglin D, Moriarty TF. Injectable gentamicin-loaded thermo-responsive hyaluronic acid derivative prevents infection in a rabbit model. Acta Biomater 2016; 43:185-194. [PMID: 27435965 DOI: 10.1016/j.actbio.2016.07.029] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 07/08/2016] [Accepted: 07/15/2016] [Indexed: 01/10/2023]
Abstract
UNLABELLED Despite the use of systemic antibiotic prophylaxis, the surgical fixation of open fractures with osteosynthesis implants is associated with high infection rates. Antibiotic-loaded biomaterials (ALBs) are increasingly used in implant surgeries across medical specialties to deliver high concentrations of antibiotics to the surgical site and reduce the risk of implant-associated infection. ALBs which are either less or not restricted in terms of spatial distribution and which may be applied throughout complex wounds could offer improved protection against infection in open fracture care. A thermo-responsive hyaluronic acid derivative (hyaluronic acid-poly(N-isopropylacrylamide) (HApN)) was prepared by a direct amidation reaction between the tetrabutyl ammonium (TBA) salt of hyaluronic acid and amine-terminated poly(N-isopropylacrylamide) (pN). The degree of grafting, and gelation properties of this gel were characterized, and the composition was loaded with gentamicin. The rheological- and release properties of this gentamicin-loaded HApN composition were tested in vitro and its efficacy in preventing infection was tested in a rabbit model of osteosynthesis contaminated with Staphylococcus aureus. The gentamicin-loaded HApN composition was able to prevent bacterial colonization of the implant site as shown by quantitative bacteriology. This finding was supported by histopathological evaluation of the humeri samples where no bacteria were found in the stained sections. In conclusion, this gentamicin-loaded HApN hydrogel effectively prevents infection in a complex wound, simulating a contaminated fracture treated with plating osteosynthesis. STATEMENT OF SIGNIFICANCE Fracture fixation after trauma is associated with high infection rates. Antibiotic loaded biomaterials (ALBs) can provide high local concentrations without systemic side effects. However, the currently available ALBs have limited accessibility to contaminated tissues in open fractures because of predetermined shape. Thus, a novel thermo-responsive hyaluronan based hydrogel with control over gelation temperature is reported. The efficacy of this gentamicin loaded hyaluronan derivative is demonstrated in an in vivo fracture model in the presence of fracture fixation hardware. The bacterial burden is cleared in all of the inoculated rabbits in the presence of the ALB. Thus, the proposed injectable thermo-responsive hyaluronan presents an effective ALB for the prevention of infection.
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Affiliation(s)
- Gert-Jan A Ter Boo
- AO Research Institute Davos, Davos, Switzerland; MIRA Institute for Biomedical Technology and Technical Medicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | | | | | | | | | - Dirk W Grijpma
- MIRA Institute for Biomedical Technology and Technical Medicine, Department of Biomaterials Science and Technology, Faculty of Science and Technology, University of Twente, Enschede, The Netherlands
| | - David Eglin
- AO Research Institute Davos, Davos, Switzerland
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Haim-Zada M, Basu A, Hagigit T, Schlinger R, Grishko M, Kraminsky A, Hanuka E, Domb AJ. Stable polyanhydride synthesized from sebacic acid and ricinoleic acid. J Control Release 2016; 257:156-162. [PMID: 27126904 DOI: 10.1016/j.jconrel.2016.04.036] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/20/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022]
Abstract
Poly(anhydride) are unstable and prone to hydrolytic degradation and depolymerisation via anhydride interchange. They are stored at -20°C, packed under inert atmosphere until use. We synthesized a new poly(anhydride) from ricinoleic (RA) and sebacic (SA) acid with alternating ester-anhydride structure that is stable at 25°C for over 18months. The copolymer is also stable in chloroform solution and under γ-irradiation. The polymer hydrolyses through anhydride cleavage lasting ~7days to form oligoesters, which are stable for >30days. The release of gentamycin from the synthesized alternate polymer matrix is sustained compared to the random copolymer.
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Affiliation(s)
- Moran Haim-Zada
- School of Pharmacy, Institute of Drug Research, Hebrew University of Jerusalem, Israel
| | - Arijit Basu
- School of Pharmacy, Institute of Drug Research, Hebrew University of Jerusalem, Israel
| | - Tal Hagigit
- Dexcel Pharma Technologies Ltd, Or-Akiva, Israel
| | | | - Michael Grishko
- TAMI - Institute for Research & Development Ltd, Haifa Bay, Israel
| | | | - Ezra Hanuka
- TAMI - Institute for Research & Development Ltd, Haifa Bay, Israel
| | - Abraham J Domb
- School of Pharmacy, Institute of Drug Research, Hebrew University of Jerusalem, Israel.
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Kunduru KR, Basu A, Haim Zada M, Domb AJ. Castor Oil-Based Biodegradable Polyesters. Biomacromolecules 2015; 16:2572-87. [DOI: 10.1021/acs.biomac.5b00923] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Konda Reddy Kunduru
- Department of Medicinal Chemistry
and Natural Products, Institute for Drug Research, School of Pharmacy,
Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Arijit Basu
- Department of Medicinal Chemistry
and Natural Products, Institute for Drug Research, School of Pharmacy,
Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Moran Haim Zada
- Department of Medicinal Chemistry
and Natural Products, Institute for Drug Research, School of Pharmacy,
Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
| | - Abraham J. Domb
- Department of Medicinal Chemistry
and Natural Products, Institute for Drug Research, School of Pharmacy,
Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 91120, Israel
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Ickowicz DE, Abtew E, Khan W, Golovanevski L, Steinman N, Weiniger CF, Domb AJ. Poly(ester-anhydride) for controlled delivery of hydrophilic drugs. J BIOACT COMPAT POL 2015. [DOI: 10.1177/0883911515598796] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Injectable pasty polyester-anhydride based on sebacic acid and ricinoleic acid at a 30:70 w/w ratio, poly(sebacic-co-ricinoleic-ester-anhydride) 3:7, was synthesized from the esterification of ricinoleic acid on poly(sebacic acid) followed by polyanhydride condensation. The effect of castor oil, citric acid, and glycerol added at 1% w/w as branching agents was determined. Castor oil and citric acid increased the viscosity, while glycerol decreased the viscosity of the polymer. Constant release of gentamicin and thyrotropin-releasing hormone incorporated in the polymer paste was monitored during 28 days.
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Affiliation(s)
- Diana E Ickowicz
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Ester Abtew
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Wahid Khan
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, India
| | - Ludmila Golovanevski
- Department of Anesthesiology and Critical Care Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - Noam Steinman
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Carolyn F Weiniger
- Department of Anesthesiology and Critical Care Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel
- Stanford School of Medicine, Stanford, CA, USA
| | - Abraham J Domb
- Institute of Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel
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34
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Advanced biopolymer-coated drug-releasing titania nanotubes (TNTs) implants with simultaneously enhanced osteoblast adhesion and antibacterial properties. Colloids Surf B Biointerfaces 2015; 130:255-63. [DOI: 10.1016/j.colsurfb.2015.04.021] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/25/2015] [Accepted: 04/08/2015] [Indexed: 12/21/2022]
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Shunmugaperumal T, Kaur V, Thenrajan RS. Lipid- and Polymer-Based Drug Delivery Carriers for Eradicating Microbial Biofilms Causing Medical Device-Related Infections. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 831:147-89. [DOI: 10.1007/978-3-319-09782-4_10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Morawska-Chochół A, Domalik-Pyzik P, Chłopek J, Szaraniec B, Sterna J, Rzewuska M, Boguń M, Kucharski R, Mielczarek P. Gentamicin release from biodegradable poly-l-lactide based composites for novel intramedullary nails. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 45:15-20. [PMID: 25491796 DOI: 10.1016/j.msec.2014.08.059] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 07/18/2014] [Accepted: 08/29/2014] [Indexed: 11/26/2022]
Abstract
One of the major problems in orthopedic surgery is infection associated with implantation. The treatment is a very difficult and long-term process. A solution to this issue can be the use of implants which additionally constitute an antibiotic carrier preventing the development of an infection. Prototypes of biodegradable intramedullary nails made of three different composites with a poly(L-lactide) matrix were designed. The nails served as gentamicin sulfate (GS) carrier - an antibiotic commonly used in the treatment of osteomyelitis. The matrix was reinforced with carbon fibers (CF), alginate fibers (Alg) and magnesium alloy wires (Mg), as well as modified with bioactive particles of tricalcium phosphate (TCP) in various systems. In this way, novel, multi-phase and multifunctional degradable intramedullary nails were obtained. The tests demonstrated strong dependence between the type of the modifying phase introduced into the composite, and the rate of drug release. Introduction of gentamicin into the nail structure strengthened and prolonged antibacterial activity of the nails.
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Affiliation(s)
- Anna Morawska-Chochół
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Biomaterials, al. A. Mickiewicza 30, 30-059 Krakow, Poland.
| | - Patrycja Domalik-Pyzik
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Biomaterials, al. A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Jan Chłopek
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Biomaterials, al. A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Barbara Szaraniec
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Biomaterials, al. A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Jacek Sterna
- Warsaw University of Life Sciences - SGGW, Faculty of Veterinary Medicine, Department of Small Animal Diseases with Clinic, ul. Nowoursynowska 159c, 02-776 Warszawa, Poland
| | - Magdalena Rzewuska
- Warsaw University of Life Sciences - SGGW, Faculty of Veterinary Medicine, Department of Preclinical Sciences, ul. Ciszewskiego 8, 02-786 Warszawa, Poland
| | - Maciej Boguń
- Lodz University of Technology, Faculty of Material Technologies and Textile Design, Department of Material and Commodity Sciences and Textile Metrology, ul. Żeromskiego 116, 90-924 Lodz, Poland
| | - Rafael Kucharski
- CJS Sp. z o. o., Gen. Jankego 134/1, 40-617 Katowice, Poland; IEE Group, Hannover, Germany
| | - Przemysław Mielczarek
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Biochemistry and Neurobiology, al. A. Mickiewicza 30, 30-059 Krakow, Poland
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Ngadaonye JI, Geever LM, McEvoy KE, Killion J, Brady DB, Higginbotham CL. Evaluation of Novel Antibiotic-Eluting Thermoresponsive Chitosan-PDEAAm Based Wound Dressings. INT J POLYM MATER PO 2014. [DOI: 10.1080/00914037.2014.886224] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Vasilev K, Cook J, Griesser HJ. Antibacterial surfaces for biomedical devices. Expert Rev Med Devices 2014; 6:553-67. [DOI: 10.1586/erd.09.36] [Citation(s) in RCA: 403] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Antibiotics Delivery for Treating Bone Infections. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2014. [DOI: 10.1007/978-1-4614-9434-8_21] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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40
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Aziz HA, Peh KK, Tan YTF. Herbal delivery system for treatment of obesity administration of encapsulated khat-extracts on body weight of rats. Obes Res Clin Pract 2013; 5:e267-360. [PMID: 24331133 DOI: 10.1016/j.orcp.2011.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 03/13/2011] [Accepted: 03/23/2011] [Indexed: 02/01/2023]
Abstract
SUMMARY Obesity is one of the most important problems worldwide. Khat (Catha edulis), an evergreen shrub, is thought to reduce body-weight. Its effect is more prominent when khat leaves are chewed. Thus, anti-obesity effects of khat and its associated side effects may depend on the release rate of its active constituents. The present study aimed to investigate the effect of a selected low dose of dried-khat, extracted, formulated as controlled release delivery systems on the body weight (BW), food intake (FI), cholesterol (CS) and triglyceride (TG) levels in rats. Khat extract (KE) was microencapsulated (KE235) and formulated into a parenteral implant (InjKE235). The effects of KE, KE235 and InjKE235 on BW, FI, CS and TG in rats were investigated. The results showed that microcapsules sustained the khat alkaloid release with T50% 1.58 h for KE235 and 14.41 days for InjKE235. KE and KE235 caused maximum reduction in BW, FI, CS and TG during the first to third weeks but rebound gradually thereafter. On the contrary, InjKE235 exhibited a sustained reduction in BW, FI, CS and TG levels for 2 months. The T50% of KE, KE235 and InjKE235 correlated with the reduction in BW, CS and TG but not with FI. In conclusion, the subcutaneous injection and sustained release rate of khat extract play an important role in enhancing the anti-obesity effect in SD rats.:
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Affiliation(s)
- Hesham Abdul Aziz
- Department of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia.
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41
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Sterilization by gamma radiation of antibiotic impregnated polymethylmethacrylate and plaster of Paris beads. A pilot study. Vet Comp Orthop Traumatol 2013; 27:97-101. [PMID: 24317641 DOI: 10.3415/vcot-13-03-0037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 11/03/2013] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Ethylene oxide is currently recommended for sterilization of antibiotic impregnated beads; however this method carries health risks to personnel and is becoming less available. OBJECTIVE To perform a pilot study of the effect of radiation for sterilization of polymethylmethacrylate (PMMA) and plaster of Paris (POP) beads impregnated with amikacin, enrofloxacin, and ceftiofur. HYPOTHESIS Radiation would effectively sterilize the beads without affecting the efficacy of the antibiotic. MATERIALS AND METHODS Beads of PMMA and POP were prepared in a clean but non-sterile manner with one of the three antibiotics (amikacin, enrofloxacin, ceftiofur) or no antibiotic. Beads were then exposed to radiation for a total dose of 0 kiloGray (kGy), 10 kGy and 25 kGy. Beads were incubated on Mueller-Hinton agar plates seeded with Escherichia coli, Staphylococcus aureus or Pseudomonas aeruginosa for 24 hours or cultured in brain-heart infusion broth for 48 hours. Zones of inhibition were measured on the agar plates and statistics were performed on the diameters of the zones of inhibition using an analysis of variance. RESULTS There were no differences in the diameters of inhibition for all levels of radiation for all PMMA beads. The same was true with POP beads with the exception of enrofloxacin which had a significantly decreased zone of inhibition with increased levels of radiation, though the clinical significance of this finding was not assessed. Only beads without antibiotics and not exposed to radiation had bacterial growth. CLINICAL SIGNIFICANCE Radiation may be an effective method of sterilization for antibiotic impregnated beads.
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42
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Poly(ε-caprolactone) composite scaffolds loaded with gentamicin-containing β-tricalcium phosphate/gelatin microspheres for bone tissue engineering applications. J Appl Polym Sci 2013. [DOI: 10.1002/app.40110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Wang HL, Zuo Y, Zhang L, Yang WH, Zou Q, Zhou S, Li YB. Preparation and characterisation of nanohydroxyapatite–sodium alginate–polyvinyl alcohol composite scaffold. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/143307510x12820854748836] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- H. L. Wang
- The Research Center for Nano-BiomaterialsAnalytical and Testing Center, Sichuan University, Chengdu 610064 , China , School of Pharmacy, Chengdu Medical College, Chengdu 610083 , China
| | - Y. Zuo
- The Research Center for Nano-BiomaterialsAnalytical and Testing Center, Sichuan University, Chengdu 610064 , China
| | - L. Zhang
- The Research Center for Nano-BiomaterialsAnalytical and Testing Center, Sichuan University, Chengdu 610064 , China
| | - W. H. Yang
- The Research Center for Nano-BiomaterialsAnalytical and Testing Center, Sichuan University, Chengdu 610064 , China
| | - Q. Zou
- The Research Center for Nano-BiomaterialsAnalytical and Testing Center, Sichuan University, Chengdu 610064 , China
| | - S. Zhou
- The Research Center for Nano-BiomaterialsAnalytical and Testing Center, Sichuan University, Chengdu 610064 , China
| | - Y. B. Li
- The Research Center for Nano-BiomaterialsAnalytical and Testing Center, Sichuan University, Chengdu 610064 , China ;,
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Wu T, Zhang Q, Ren W, Yi X, Zhou Z, Peng X, Yu X, Lang M. Controlled release of gentamicin from gelatin/genipin reinforced beta-tricalcium phosphate scaffold for the treatment of osteomyelitis. J Mater Chem B 2013; 1:3304-3313. [PMID: 32261039 DOI: 10.1039/c3tb20261e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Infection of the bone (osteomyelitis) remains one of the most challenging problems in the field of orthopedic surgery. The limitations of systemic antibiotics administration include undesired side effects, systemic toxicity, patient discomfort, and development of bacterial resistance. In this study, we developed a bactericidal gentamicin-doped beta-tricalcium phosphate (TCP) scaffold reinforced with a gelatin/genipin hydrogel (G-TCP). Our data showed that the gentamicin-doped G-TCP had a much longer drug releasing period, while the gentamicin was completely released from pure TCP cements (B-TCP) within one day. In addition, the release profile of G-TCP exhibited an initial burst followed by a zero-order release. One standard strain, Staphylococcus aureus (S. aureus, ATCC25923) was selected to evaluate the antibacterial activity and therapeutic effect of this scaffold. G-TCP significantly inhibited growth of S. aureus both in vitro and in vivo. In a rat osteomyelitis model, osteomyelitis could be totally cured after implantation of G-TCP for three weeks. We propose that the gelatin/genipin-gentamicin TCP scaffold represents one of the promising gentamicin releasing bone scaffolds in treating osteomyelitis.
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Affiliation(s)
- Tianyi Wu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, 200233, China
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Vaisman B, Ickowicz DE, Abtew E, Haim-Zada M, Shikanov A, Domb AJ. In Vivo Degradation and Elimination of Injectable Ricinoleic Acid-Based Poly(ester-anhydride). Biomacromolecules 2013; 14:1465-73. [DOI: 10.1021/bm4001475] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Boris Vaisman
- Institute
for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120 Jerusalem, Israel
| | - Diana E. Ickowicz
- Institute
for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120 Jerusalem, Israel
| | - Ester Abtew
- Institute
for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120 Jerusalem, Israel
| | - Moran Haim-Zada
- Institute
for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120 Jerusalem, Israel
| | - Ariella Shikanov
- Institute
for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120 Jerusalem, Israel
| | - Abraham J. Domb
- Institute
for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120 Jerusalem, Israel
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46
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Agarwal P, Rupenthal ID. Injectable implants for the sustained release of protein and peptide drugs. Drug Discov Today 2013; 18:337-49. [PMID: 23410799 DOI: 10.1016/j.drudis.2013.01.013] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 11/02/2012] [Accepted: 01/14/2013] [Indexed: 12/20/2022]
Abstract
Protein and peptide macromolecules have emerged as promising therapeutic agents in recent years. However, their delivery to the target site can be challenging owing to their susceptibility to denaturation and degradation, short half-life and, therefore, poor bioavailability. In situ-forming implants present an attractive parenteral delivery platform for proteins and peptides because of their ease of application, sustained-release properties, tissue biocompatibility and simple manufacture. In this review, we discuss the various mechanisms by which polymer systems assemble in situ to form implant devices for sustained release of therapeutic macromolecules, and highlight recent advances in polymer systems that gel in response to a combination of these mechanisms. Finally, we examine release mechanisms, marketed products and limitations of injectable implants.
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Affiliation(s)
- Priyanka Agarwal
- Drug Delivery Research Unit, School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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Basak P, Adhikari B. Effect of the solubility of antibiotics on their release from degradable polyurethane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.07.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Trajkovski B, Petersen A, Strube P, Mehta M, Duda GN. Intra-operatively customized implant coating strategies for local and controlled drug delivery to bone. Adv Drug Deliv Rev 2012; 64:1142-51. [PMID: 22664228 DOI: 10.1016/j.addr.2012.05.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 04/26/2012] [Accepted: 05/29/2012] [Indexed: 11/30/2022]
Abstract
Bone is one of the few tissues in the human body with high endogenous healing capacity. However, failure of the healing process presents a significant clinical challenge; it is a tremendous burden for the individual and has related health and economic consequences. To overcome such healing deficits, various concepts for a local drug delivery to bone have been developed during the last decades. However, in many cases these concepts do not meet the specific requirements of either surgeons who must use these strategies or individual patients who might benefit from them. We describe currently available methods for local drug delivery and their limitations in therapy. Various solutions for drug delivery to bone focusing on clinical applications and intra-operative constraints are discussed and drug delivery by implant coating is highlighted. Finally, a new set of design and performance requirements for intra-operatively customized implant coatings for controlled drug delivery is proposed. In the future, these requirements may improve approaches for local and intra-operative treatment of patients.
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Affiliation(s)
- Branko Trajkovski
- Julius Wolff Institute, Charité-Universitätsmedizin Berlin, Berlin, Germany.
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Mittal A, Kumar N. Drug-Loaded Polymeric Composite Skin Graft for Infection-Free Wound Healing: Fabrication, Characterization, Cell Proliferation, Migration, and Antimicrobial Activity. Pharm Res 2012; 29:3110-21. [DOI: 10.1007/s11095-012-0803-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 06/07/2012] [Indexed: 10/28/2022]
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Williams DL, Haymond BS, Woodbury KL, Beck JP, Moore DE, Epperson RT, Bloebaum RD. Experimental model of biofilm implant-related osteomyelitis to test combination biomaterials using biofilms as initial inocula. J Biomed Mater Res A 2012; 100:1888-900. [PMID: 22492534 DOI: 10.1002/jbm.a.34123] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Accepted: 02/03/2012] [Indexed: 01/01/2023]
Abstract
Currently, the majority of animal models that are used to study biofilm-related infections use planktonic bacterial cells as initial inocula to produce positive signals of infection in biomaterials studies. However, the use of planktonic cells has potentially led to inconsistent results in infection outcomes. In this study, well-established biofilms of methicillin-resistant Staphylococcus aureus were grown and used as initial inocula in an animal model of a Type IIIB open fracture. The goal of the work was to establish, for the first time, a repeatable model of biofilm implant-related osteomyelitis, wherein biofilms were used as initial inocula to test combination biomaterials. Results showed that 100% of animals that were treated with biofilms developed osteomyelitis, whereas 0% of animals not treated with biofilm developed infection. The development of this experimental model may lead to an important shift in biofilm and biomaterials research by showing that when biofilms are used as initial inocula, they may provide additional insights into how biofilm-related infections in the clinic develop and how they can be treated with combination biomaterials to eradicate and/or prevent biofilm formation.
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Affiliation(s)
- Dustin L Williams
- George E. Wahlen Department of Veterans Affairs Medical Center, Salt Lake City, Utah, USA.
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