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Puccetti M, Cusati E, Antognelli C, Ricci M, Ambrogi V, Schoubben A. Ketorolac Loaded Poly(lactic-co-glycolic acid) Coating of AZ31 in the Treatment of Bone Fracture Pain. Polymers (Basel) 2023; 15:polym15102246. [PMID: 37242821 DOI: 10.3390/polym15102246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 05/04/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
Biodegradable metal alloys may be successfully used to support bone repair, avoiding second surgery commonly needed when inert metal alloys are used. Combining a biodegradable metal alloy with a suitable pain relief agent could improve patient quality of life. AZ31 alloy was coated using a poly(lactic-co-glycolic) acid (PLGA) polymer loaded with ketorolac tromethamine using the solvent casting method. The ketorolac release profile from the polymeric film and the coated AZ31 samples, the PLGA mass loss of polymeric film, and the cytotoxicity of the optimized coated alloy were assessed. The coated sample showed a ketorolac release that was prolonged for two weeks, which was slower than that of just the polymeric film, in simulated body fluid. PLGA mass loss was complete after a 45-day immersion in simulated body fluid. The PLGA coating was able to lower AZ31 and ketorolac tromethamine cytotoxicity observed in human osteoblasts. PLGA coating also prevents AZ31 cytotoxicity, which was identified in human fibroblasts. Therefore, PLGA was able to control ketorolac release and protect AZ31 from premature corrosion. These characteristics allow us to hypothesize that the use of ketorolac tromethamine-loaded PLGA coating on AZ31 in the management of bone fractures can favor osteosynthesis and relief pain.
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Affiliation(s)
- Matteo Puccetti
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Eleonora Cusati
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Cinzia Antognelli
- Department of Medicine and Surgery, University of Perugia, P.le L. Severi 1, 06129 Perugia, Italy
| | - Maurizio Ricci
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Valeria Ambrogi
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
| | - Aurélie Schoubben
- Department of Pharmaceutical Sciences, University of Perugia, Via del Liceo 1, 06123 Perugia, Italy
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Kim Y, Park EJ, Kim TW, Na DH. Recent Progress in Drug Release Testing Methods of Biopolymeric Particulate System. Pharmaceutics 2021; 13:1313. [PMID: 34452274 PMCID: PMC8399039 DOI: 10.3390/pharmaceutics13081313] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 12/18/2022] Open
Abstract
Biopolymeric microparticles have been widely used for long-term release formulations of short half-life chemicals or synthetic peptides. Characterization of the drug release from microparticles is important to ensure product quality and desired pharmacological effect. However, there is no official method for long-term release parenteral dosage forms. Much work has been done to develop methods for in vitro drug release testing, generally grouped into three major categories: sample and separate, dialysis membrane, and continuous flow (flow-through cell) methods. In vitro drug release testing also plays an important role in providing insight into the in vivo performance of a product. In vitro release test with in vivo relevance can reduce the cost of conducting in vivo studies and accelerate drug product development. Therefore, investigation of the in vitro-in vivo correlation (IVIVC) is increasingly becoming an essential part of particulate formulation development. This review summarizes the principles of the in vitro release testing methods of biopolymeric particulate system with the recent research articles and discusses their characteristics including IVIVC, accelerated release testing methods, and stability of encapsulated drugs.
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Affiliation(s)
- Yejin Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea; (Y.K.); (T.W.K.)
- G2GBIO, Inc., Daejeon 34054, Korea
| | | | - Tae Wan Kim
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea; (Y.K.); (T.W.K.)
| | - Dong Hee Na
- College of Pharmacy, Chung-Ang University, Seoul 06974, Korea; (Y.K.); (T.W.K.)
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Boim AGF, Patinha C, Wragg J, Cave M, Alleoni LRF. Respiratory bioaccessibility and solid phase partitioning of potentially harmful elements in urban environmental matrices. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 765:142791. [PMID: 33097248 DOI: 10.1016/j.scitotenv.2020.142791] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
Studies regarding the role of geochemical processes in urban environmental matrices (UEM) and their influence on respiratory bioaccessibility in humans are scarce in humid tropical regions, especially in Brazil. Contaminated UEM are potentially hazardous to humans if particles <10 μm in diameter are inhaled and reach the tracheobronchial region. In this study, we evaluated samples collected in Brazilian UEMs with a large environmental liability left by former mining industries and in a city with strong industrial expansion. UEM samples were classified into soil, sediment and mine tailings according to the characteristics of the collection sites. The respiratory bioaccessibility of potentially harmful elements (PHE) was evaluated using artificial lysosomal fluid (ALF, pH 4.5), and the BCR-sequential extraction was performed to evaluate how the respiratory bioaccessibility of the PHE was related to the solid phase partitioning. The bioaccessible fraction (BAF) ranged from 54 to 98% for Cd; 21-89% for Cu; 46-140% for Pb, 35-88% for Mn and; 41-84% for Zn. The average BAF of the elements decreased in the following order: Soil: Cd > Pb > Mn > Zn > Cu; Tailing: Pb > Cd > Zn > Mn > Cu; and Sediments: Pb > Mn > Cd > Zn > Cu. BCR-fractions were useful to predict the PHE bioaccessibility (R2 = 0.79-0.98), thus suggesting that particle geochemistry and mineralogy can influence PHE behaviour in the pulmonary fluid. Therefore, this approach provides a combination of quantitative and qualitative data, which allows us to carry out a more realistic assessment of the current situation of the potentially contaminated site and possible alternatives for decision making by the stakeholders.
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Affiliation(s)
- Alexys Giorgia Friol Boim
- Department of Soil Science, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), 13418-900 Piracicaba, São Paulo, Brazil.
| | - Carla Patinha
- GEOBIOTEC, Geosciences Department, Aveiro University, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Joanna Wragg
- British Geological Survey, Environmental Science Centre, Nicker Hill, Keyworth, Nottingham NG12 5GG, UK
| | - Mark Cave
- British Geological Survey, Environmental Science Centre, Nicker Hill, Keyworth, Nottingham NG12 5GG, UK
| | - Luís Reynaldo Ferracciú Alleoni
- Department of Soil Science, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), 13418-900 Piracicaba, São Paulo, Brazil
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Experiments and modeling of controlled release behavior of commercial and model polymer-drug formulations using dialysis membrane method. Drug Deliv Transl Res 2019; 10:515-528. [DOI: 10.1007/s13346-019-00696-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Schoubben A, Ricci M, Giovagnoli S. Meeting the unmet: from traditional to cutting-edge techniques for poly lactide and poly lactide-co-glycolide microparticle manufacturing. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2019. [DOI: 10.1007/s40005-019-00446-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Ukawa M, Tanishita S, Yagi H, Yoshida Y, Tomono T, Shigeno K, Tobita E, Uto T, Baba M, Sakuma S. Biodegradable Hyaluronic Acid Modified with Tetraglycine-l-octaarginine as a Safe Adjuvant for Mucosal Vaccination. Mol Pharm 2019; 16:1105-1118. [PMID: 30715891 DOI: 10.1021/acs.molpharmaceut.8b01110] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We have been investigating the potential use of polymers modified with cell-penetrating peptides as an adjuvant for mucosal vaccination and have already developed nondegradable poly( N-vinylacetamide- co-acrylic acid) (PNVA- co-AA) with which d-octaarginine, a typical cell-penetrating peptide, was grafted. Our previous murine infection experiments demonstrated that immunoglobulin G (IgG) and immunoglobulin A (IgA) were induced in systemic circulation and secreted on nasal mucosa, respectively, through 4-time nasal inoculations with a mixture of influenza viral antigens and d-octaarginine-linked PNVA- co-AA at 7-day intervals, and that immunized mice were perfectly protected from homologous virus infection. In the present study, we designed novel biodegradable polymers bearing cell-penetrating peptides from a perspective of clinical application. Hyaluronic acid whose glucuronic acid was modified with tetraglycine-l-octaarginine at a monosaccharide unit ratio of 30% was successfully developed. The hyaluronic acid derivative exhibited adjuvant activities identical to PNVA- co-AA bearing either d-octaarginine or tetraglycine-d-octaarginine under the above-mentioned inoculation schedule. We further found that there was no difference in humoral immunity between the 4-time inoculations at 7-day intervals and the 2-time inoculations at 28-day intervals. Intranasal IgA induced through the latter schedule with a smaller number of inoculations, which is clinically practical, exhibited cross-reactivity beyond the subtype of viral strains. In vitro toxicity studies demonstrated that the hyaluronic acid derivative was much less toxic than the corresponding PNVA- co-AA derivatives, and that both the polymers and their metabolites did not exhibit genotoxicity. Our results suggested that tetraglycine-l-octaarginine-linked hyaluronic acid would be a clinically valuable and safe adjuvant for mucosal vaccination.
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Affiliation(s)
- Masami Ukawa
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Sohei Tanishita
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Haruya Yagi
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Yuki Yoshida
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Takumi Tomono
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
| | - Koichi Shigeno
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku , Tokyo 116-8553 , Japan
| | - Etsuo Tobita
- Life Science Materials Laboratory , ADEKA Co. , 7-2-34, Higashiogu , Arakawa-ku , Tokyo 116-8553 , Japan
| | - Tomofumi Uto
- Faculty of Medicine , University of Miyazaki , Kihara 5200, Kiyotake , Miyazaki 889-1692 , Japan
| | - Masanori Baba
- Center for Chronic Viral Diseases , Kagoshima University , 8-35-1, Sakuragaoka , Kagoshima 890-8544 , Japan
| | - Shinji Sakuma
- Faculty of Pharmaceutical Sciences , Setsunan University , 45-1, Nagaotoge-cho , Hirakata , Osaka 573-0101 , Japan
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The effect of the release behavior of simvastatin from different PLGA particles on bone regeneration in vitro and in vivo : Comparison of simvastatin-loaded PLGA microspheres and nanospheres. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.03.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Drug release testing methods of polymeric particulate drug formulations. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2013. [DOI: 10.1007/s40005-013-0072-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Selmin F, Blasi P, DeLuca PP. Accelerated polymer biodegradation of risperidone poly(D, L-lactide-co-glycolide) microspheres. AAPS PharmSciTech 2012; 13:1465-72. [PMID: 23090111 DOI: 10.1208/s12249-012-9874-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 10/08/2012] [Indexed: 11/30/2022] Open
Abstract
The influence of a tertiary amine, namely risperidone (pKa = 7.9) on the degradation of poly(D, L lactide-co-glycolide) (PLGA) microspheres was elucidated. Risperidone and blank microspheres were fabricated at two lactide/glycolide ratios, 65:35 and 85:15. The microspheres were characterized for drug loading by high-performance liquid chromatography, particle size by laser diffractometry, and surface morphology by scanning electron microscopy. Polymer degradation studies were carried out with drug-loaded microspheres and blank microspheres in presence of free risperidone in 0.02 M PBS containing 0.02% Tween®80 at 37°C. Molecular weight was monitored by gel permeation chromatography. Risperidone and blank microspheres had similar size distribution and were spherical with a relatively nonporous smooth surface. The presence of risperidone within the microspheres enhanced the hydrolytic degradation in both polymeric matrices with faster degradation occurring in 65:35 PLGA. The molecular weight decreased according to pseudo-first-order kinetics for all the formulations. During the degradation study, the surface morphology of drug-loaded microspheres was affected by the presence of risperidone and resulted in shriveled microspheres in which there appeared to be an intrabatch variation with the larger microspheres being less shriveled than the smaller ones. When blank microspheres were incubated in free risperidone solutions, a concentration-dependent effect on the development of surface porosity could be observed. Risperidone accelerates the hydrolytic degradation of PLGA, presumably within the microenvironment of the drug-loaded particles, and this phenomenon must be taken into consideration in designing PLGA dosage forms of tertiary amine drugs.
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