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Jurić S, Vlahoviček-Kahlina K, Jurić O, Uher SF, Jalšenjak N, Vinceković M. Increasing the lycopene content and bioactive potential of tomato fruits by application of encapsulated biological and chemical agents. Food Chem 2022; 393:133341. [PMID: 35661601 DOI: 10.1016/j.foodchem.2022.133341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 04/15/2022] [Accepted: 05/26/2022] [Indexed: 11/22/2022]
Abstract
Plant secondary metabolites play an important part in the human diet. This research investigated the effect of alginate microspheres loaded with chemical (calcium or copper ions) or chemical and biological (Trichoderma viride) agents on plant secondary metabolites synthesis of two tomato varieties ('Vasanta' and 'Abellus') in two types of greenhouse cultivation, hydroponic and soil. Targeted and controlled release of active agents facilitates the root of plants to respond to the encapsulated agents and stimulate the synthesis of investigated plant metabolites both in hydroponic and soil types of cultivation. A significant increase in lycopene (up to 230%), total polyphenols content (up to 61%), and the overall antioxidant activity (up to 77%) of the tomato fruits was found for all of the treatments, respectively. Encapsulated chemical and biological agents remarkably stimulate the synthesis of plant secondary metabolites in tomato fruits indicating its great potential in the production of value-added foods.
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Gao Y, Kang Y, Wang T, Li C, Shen S, Qu C, Gong S, Liu P, Yang L, Liu J, Han B, Li C. Alginate microspheres-collagen hydrogel, as a novel 3D culture system, enhanced skin wound healing of hUCMSCs in rats model. Colloids Surf B Biointerfaces 2022; 219:112799. [PMID: 36095954 DOI: 10.1016/j.colsurfb.2022.112799] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/13/2022] [Accepted: 08/22/2022] [Indexed: 10/31/2022]
Abstract
While stem cell transplantation has emerged as a promising approach to improving wound healing outcomes, the application of stem cells to date has been limited by the poor survival and retention of these cells once transplanted. The survival, development, and migratory activity of transplanted cells can be improved through the use of three-dimensional (3D) culture systems. Here, a novel alginate microsphere-collage hydrogel (AMS-Col gel) 3D culture system was developed and found to improve human umbilical cord mesenchymal stem cell (hUCMSC) survival, permitting their sustained release so as to promote wound healing. Through hematoxylin and eosin staining and Masson's trichrome staining, the prepared hUCMSCs-AMS-Col gel was found to exhibit wound healing activity. On day 7 following the hUCMSCs-AMS-Col gel treatment of model wounds, improved collagen fiber deposition and re-epithelialization were evident, with complete epithelial regeneration as of day 14 and near-total wound healing was evident as of day 21. This hUCMSCs-AMS-Col gel was also associated with increased VEGF and FGF2 expression. Together, these data indicate that AMS-Col gels are a promising and novel form of 3D cell culture system capable of improving hUCMSC-mediated wound healing, highlighting the potential clinical utility of this regenerative strategy.
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Affiliation(s)
- Yonglin Gao
- College of Life Sciences, Yantai University, Yantai 264005, PR China
| | - Yating Kang
- College of Life Sciences, Yantai University, Yantai 264005, PR China
| | - Tong Wang
- College of Life Sciences, Yantai University, Yantai 264005, PR China
| | - Chengbo Li
- School of Pharmacy, Binzhou Medical University, Yantai 264003, PR China
| | - Shengbiao Shen
- Yantai Longstrong Biotechnology Co., Ltd., Yantai 264670, PR China
| | - Chenglei Qu
- Yantai Longstrong Biotechnology Co., Ltd., Yantai 264670, PR China
| | - Shizhou Gong
- Yantai Longstrong Biotechnology Co., Ltd., Yantai 264670, PR China
| | - Ping Liu
- College of Life Sciences, Yantai University, Yantai 264005, PR China
| | - Lintong Yang
- College of Life Sciences, Yantai University, Yantai 264005, PR China
| | - Jingmin Liu
- College of Life Sciences, Yantai University, Yantai 264005, PR China
| | - Bing Han
- Luye Pharma Group Ltd., Yantai 264003, PR China
| | - Chunmei Li
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, PR China.
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Zhou B, Zhang W, Wu Y, Yang Y, Wang N, Li J, Fu T, Wang L, Di L. Improved efficacy of Panax notoginseng saponin loaded into BSP/ alginate microspheres for the treatment of alcoholic gastric ulcers. Int J Pharm 2021; 596:120218. [PMID: 33493598 DOI: 10.1016/j.ijpharm.2021.120218] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 12/08/2020] [Accepted: 12/22/2020] [Indexed: 01/08/2023]
Abstract
Previously, we have reported the evaluations of alginate and Bletilla striata polysaccharide (BSP) in formulation of microsphere, which is a muco-adhesive carrier and can achieve a long duration of gastric retention. The combination of Panax notoginseng (Burk.) and B. striata is a traditional Chinese herbal formula that is used to treat gastric ulcers. BSP, an effective ingredient of B. striata, possesses both medicinal and excipient functions. Panax notoginseng saponin (PNS), which can easily dissolve in water, is the main effective ingredient in P. notoginseng (Burk.) for the treatment of gastric ulcers. However, microspheres containing PNS could directly cause drug leakage, ultimately reducing the encapsulation rate. In this study, PNS was fabricated into a hydrophobic dispersion with slow-release characteristics. Subsequently, PNS was packaged into BSP/alginate microspheres to improve the encapsulation rate. The prepared PNS-loaded microspheres were round, the release characteristics aligned with the Weibull equation, and the active ingredients were released by diffusion and erosion. The developed microspheres improved the effects of PNS and synergistically exerted the pharmaceutical effects of BSP on acute gastric ulcers.
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Jurić S, Tanuwidjaja I, Fuka MM, Vlahoviček-Kahlina K, Marijan M, Boras A, Kolić NU, Vinceković M. Encapsulation of two fermentation agents, Lactobacillus sakei and calcium ions in microspheres. Colloids Surf B Biointerfaces 2020; 197:111387. [PMID: 33049659 DOI: 10.1016/j.colsurfb.2020.111387] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/19/2020] [Accepted: 09/28/2020] [Indexed: 11/29/2022]
Abstract
Alginate microspheres loaded with two fermentation active agents, calcium cations and strain LS0296 identified as Lactobacillus sakei, have been prepared and characterized. The role of calcium cation is twofold, it acts as gelling cation and as fermentation active agent. Encapsulation and the presence of calcium ions in the same compartment do not inhibit the activity of LS0296. Molecular interactions in microspheres are complex, including mainly hydrogen bonds and electrostatic interactions. In vitro calcium cations and strain LS0296 release profiles were fitted to the Korsmeyer-Peppas empirical model. The calcium cation release process is driven at first by Fickian diffusion through microspheres and then by anomalous transport kinetics. The in vitro LS0296 release process is driven by Fickian diffusion through microspheres showing a much slower releasing rate than calcium cations. The release of LS0296 strain is followed by a decrease in the pH value. Results obtained give us a new insight into complex interactions between bacterial cultures and microsphere constituents. Prepared formulations of calcium alginate microspheres loaded with LS0296 could be used as a new promising tool and a model for different starter cultures encapsulation and use in the production of fermented foods.
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Affiliation(s)
- Slaven Jurić
- University of Zagreb, Faculty of Agriculture, Department of Chemistry, Croatia.
| | - Irina Tanuwidjaja
- University of Zagreb, Faculty of Agriculture, Department of Microbiology, Croatia.
| | - Mirna Mrkonjić Fuka
- University of Zagreb, Faculty of Agriculture, Department of Microbiology, Croatia.
| | | | - Marijan Marijan
- University of Zagreb, Faculty of Agriculture, Department of Chemistry, Croatia.
| | - Anita Boras
- University of Zagreb, Faculty of Agriculture, Department of Microbiology, Croatia.
| | | | - Marko Vinceković
- University of Zagreb, Faculty of Agriculture, Department of Chemistry, Croatia.
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Munarin F, Kant RJ, Rupert CE, Khoo A, Coulombe KLK. Engineered human myocardium with local release of angiogenic proteins improves vascularization and cardiac function in injured rat hearts. Biomaterials 2020; 251:120033. [PMID: 32388033 PMCID: PMC8115013 DOI: 10.1016/j.biomaterials.2020.120033] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/01/2020] [Accepted: 04/03/2020] [Indexed: 12/27/2022]
Abstract
Heart regeneration after myocardial infarction requires new cardiomyocytes and a supportive vascular network. Here, we evaluate the efficacy of localized delivery of angiogenic factors from biomaterials within the implanted muscle tissue to guide growth of a more dense, organized, and perfused vascular supply into implanted engineered human cardiac tissue on an ischemia/reperfusion injured rat heart. We use large, aligned 3-dimensional engineered tissue with cardiomyocytes derived from human induced pluripotent stem cells in a collagen matrix that contains dispersed alginate microspheres as local protein depots. Release of angiogenic growth factors VEGF and bFGF in combination with morphogen sonic hedgehog from the microspheres into the local microenvironment occurs from the epicardial implant site. Analysis of the 3D vascular network in the engineered tissue via Microfil® perfusion and microCT imaging at 30 days shows increased volumetric network density with a wider distribution of vessel diameters, proportionally increased branching and length, and reduced tortuosity. Global heart function is increased in the angiogenic factor-loaded cardiac implants versus sham. These findings demonstrate for the first time the efficacy of a combined remuscularization and revascularization therapy for heart regeneration after myocardial infarction.
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Affiliation(s)
- Fabiola Munarin
- Center for Biomedical Engineering, Brown University, 184 Hope St, Providence, RI, 02912, USA
| | - Rajeev J Kant
- Center for Biomedical Engineering, Brown University, 184 Hope St, Providence, RI, 02912, USA
| | - Cassady E Rupert
- Center for Biomedical Engineering, Brown University, 184 Hope St, Providence, RI, 02912, USA
| | - Amelia Khoo
- Center for Biomedical Engineering, Brown University, 184 Hope St, Providence, RI, 02912, USA
| | - Kareen L K Coulombe
- Center for Biomedical Engineering, Brown University, 184 Hope St, Providence, RI, 02912, USA.
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Wu Y, Zhang W, Huang J, Luo Z, Li J, Wang L, Di L. Mucoadhesive improvement of alginate microspheres as potential gastroretentive delivery carrier by blending with Bletilla striata polysaccharide. Int J Biol Macromol 2019; 156:1191-1201. [PMID: 31756485 DOI: 10.1016/j.ijbiomac.2019.11.156] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 11/18/2019] [Accepted: 11/18/2019] [Indexed: 11/15/2022]
Abstract
As polysaccharide from Bletilla striata (BSP) was anticipated with mucoadhesive improvement in sodium alginate (SA) microspheres, BSP was mixed with SA to construct a composite microsphere to retain in the gastrointestinal tract for a long time. The morphological properties, particle size and thermodynamic properties of the microspheres in combination with comprehensive evaluations in the swelling properties, mucin adsorption, ex vivo and in vivo gastric retention were determined to characterize the mucoadhesion of SA-BSP blend microspheres. Results showed that the prepared microspheres were discrete and spherical. The addition of BSP increased flexibility and reduced rigidity of SA microsphere. Furthermore, the swelling property, mucin adsorption ability and the retention rate on the gastric mucosa of SA matrix were increased after blending with BSP. Mucoadhesion tests showed the SA-BSP microspheres stayed much longer in rats' stomach than the SA microsphere did. Above all, the SA-BSP microspheres with the enhanced mucoadhesion suggested being a potential drug carrier in developing the gastroretentive drug delivery system.
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Affiliation(s)
- Yujia Wu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province 210023, PR China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing City, Jiangsu Province 210023, PR China
| | - Wen Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province 210023, PR China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing City, Jiangsu Province 210023, PR China
| | - Jianyu Huang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province 210023, PR China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing City, Jiangsu Province 210023, PR China
| | - Zichen Luo
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province 210023, PR China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing City, Jiangsu Province 210023, PR China
| | - Junsong Li
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province 210023, PR China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing City, Jiangsu Province 210023, PR China
| | - Lingchong Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province 210023, PR China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing City, Jiangsu Province 210023, PR China.
| | - Liuqing Di
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City, Jiangsu Province 210023, PR China; Jiangsu Engineering Research Center for Efficient Delivery System of TCM, Nanjing City, Jiangsu Province 210023, PR China.
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Dhamecha D, Movsas R, Sano U, Menon JU. Applications of alginate microspheres in therapeutics delivery and cell culture: Past, present and future. Int J Pharm 2019; 569:118627. [PMID: 31421199 PMCID: PMC7073469 DOI: 10.1016/j.ijpharm.2019.118627] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 12/11/2022]
Abstract
Polymers are the backbone of pharmaceutical drug delivery. There are several polymers with varying properties available today for use in different pharmaceutical applications. Alginate is widely used in biomedical research due to its attractive features such as biocompatibility, biodegradability, inertness, low cost, and ease of production and formulation. Encapsulation of therapeutic agents in alginate/alginate complex microspheres protects them from environmental stresses, including the acidic environment in the gastro-intestinal tract (GIT) and enzymatic degradation, and allows targeted and sustained delivery of the agents. Microencapsulation is playing an increasingly important role in drug delivery as evidenced by the recent surge in research articles on the use of alginate in the delivery of small molecules, cells, bacteria, proteins, vaccines, and for tissue engineering applications. Formulation of these alginate microspheres (AMS) are commonly achieved by conventional external gelation method using various instrumental manipulation such as vortexing, homogenization, ultrasonication or spray drying, and each method affects the overall particle characteristics. In this review, an inclusive summary of the currently available methods for the formulation of AMS, its recent use in the encapsulation and delivery of therapeutics, and future outlook will be discussed.
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Affiliation(s)
- Dinesh Dhamecha
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Rachel Movsas
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ugene Sano
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Jyothi U Menon
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
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Pogozhykh O, Prokopyuk V, Prokopyuk O, Kuleshova L, Goltsev A, Figueiredo C, Pogozhykh D. Towards biobanking technologies for natural and bioengineered multicellular placental constructs. Biomaterials 2018; 185:39-50. [PMID: 30218835 DOI: 10.1016/j.biomaterials.2018.08.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 08/20/2018] [Accepted: 08/27/2018] [Indexed: 12/13/2022]
Abstract
Clinical application of a large variety of biomaterials is limited by the imperfections in storage technology. Perspective approaches utilizing low-temperature storage are especially challenging for multicellular structures, such as tissues, organs, and bioengineered constructs. Placenta, as a temporary organ, is a widely available unique biological material, being among the most promising sources of various cells and tissues for clinical and experimental use in regenerative medicine and tissue engineering. The aim of this study was to analyse the mechanisms of cryoinjuries in different placental tissues and bioengineered constructs as well as to support the viability after low temperature storage, which would contribute to development of efficient biobanking technologies. This study shows that specificity of cryodamage depends on the structure of the studied object, intercellular bonds, as well as interaction of its components with cryoprotective agents. Remarkably, it was possible to efficiently isolate cells after thawing from all of the studied tissues. While the outcome was lower in comparison to the native non-frozen samples, the phenotype and expression levels of pluripotency genes remained unaffected. Further progress in eliminating of recrystallization processes during thawing would significantly improve biobanking technologies for multicellular constructs and tissues.
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Affiliation(s)
- Olena Pogozhykh
- Institute for Transfusion Medicine, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany; Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavskaya Str. 23, 61015 Kharkiv, Ukraine
| | - Volodymyr Prokopyuk
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavskaya Str. 23, 61015 Kharkiv, Ukraine
| | - Olga Prokopyuk
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavskaya Str. 23, 61015 Kharkiv, Ukraine
| | - Larisa Kuleshova
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavskaya Str. 23, 61015 Kharkiv, Ukraine
| | - Anatoliy Goltsev
- Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavskaya Str. 23, 61015 Kharkiv, Ukraine
| | - Constança Figueiredo
- Institute for Transfusion Medicine, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
| | - Denys Pogozhykh
- Institute for Transfusion Medicine, Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany; Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Pereyaslavskaya Str. 23, 61015 Kharkiv, Ukraine.
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Jiao G, Pan Y, Wang C, Li Z, Li Z, Guo R. A bridging SF/Alg composite scaffold loaded NGF for spinal cord injury repair. Mater Sci Eng C Mater Biol Appl 2017; 76:81-7. [PMID: 28482594 DOI: 10.1016/j.msec.2017.02.102] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 12/19/2016] [Accepted: 02/21/2017] [Indexed: 11/22/2022]
Abstract
Neurons loss and axons degeneration after spinal cord injury (SCI) gradually give rise to result in functional motor and sensory impairment. A bridging biomaterial scaffold that allows the axons to grow through has been investigated for the repair of injured spinal cord. In this study, we introduced a silk fibroin (SF)-based neurobridge as scaffold enriched with/without nerve growth factor (NGF) that can be utilized as a therapeutic approach for spinal cord repair. NGF released from alginate (Alg) microspheres on SF scaffold (SF/Alg composites scaffolds) to the central lesion site of SCI significantly enhanced the sparing of spinal cord tissue and increased the number of surviving neurons. This optimal multi-disciplinary approach of combining biomaterials, controlled-release microspheres and neurotrophic factors offers a promising treatment for the injured spinal cord.
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Sarkhel S, Ramsay E, Kontturi LS, Peltoniemi J, Urtti A. High-throughput in vitro drug release and pharmacokinetic simulation as a tool for drug delivery system development: application to intravitreal ocular administration. Int J Pharm 2014; 477:469-75. [PMID: 25445526 DOI: 10.1016/j.ijpharm.2014.10.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 11/21/2022]
Abstract
In vitro estimation of release kinetics from drug delivery systems is needed in formulation development. Cost-effective methods of assessment for delivery systems are needed particularly in the case of biologicals and drug administration routes that are difficult to screen in vivo (e.g. intraocular drug delivery). As a proof-of-concept, we demonstrate here a practical high-throughput methodology to investigate in vitro drug release and predict resulting drug concentrations in the eye after intravitreal administration. 96-well plate based assay aided with robotic sampling was used to study release of eight model drugs of varying physicochemical properties (dexamethasone, vancomycin, alpha-lactalbumin, lysozyme, myoglobin, albumin, lactoferrin, human IgG) from twelve alginate microsphere formulations. The amount of drug released over a period of time was assessed by photometric and fluorescence methods. In vitro drug release rates obtained were used in pharmacokinetic simulations using one-compartment model of the vitreal cavity with anatomical volume of distribution and clearance estimates based on the literature precedence. An integrated approach of drug release screening and pharmacokinetic simulations can prove to be a useful methodology in guiding formulation development for ocular delivery in animal models. In general, the methodology has the potential to be a cost-effective tool for early stage drug delivery system discovery and development.
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