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Wang F, Li Z, Gan XY, Lu XL, Jiao BH, Shen MH. Quality by design driven development and evaluation of thermosensitive hydrogel loaded with IgY and LL37-SLNs to combat experimental periodontitis. Eur J Pharm Sci 2023; 185:106444. [PMID: 37044199 DOI: 10.1016/j.ejps.2023.106444] [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: 01/17/2023] [Revised: 03/24/2023] [Accepted: 04/10/2023] [Indexed: 04/14/2023]
Abstract
Egg yolk immunoglobulin (IgY) and LL37, potent antibacterial substances, can fight against periodontitis. This work aimed to develop a locally injectable hydrogel for potential co-delivery of special IgY and LL37-loaded solid lipid nanoparticles (LL37-SLNs) to synergistically inhibit the proliferation of oral pathogens, thus relieving periodontal inflammation and redness. The formulation of thermosensitive hydrogel loaded with IgY and LL37-SLNs was developed by adopting the Quality by Design approach. Then the formulations were optimized by two-factor three-level full factorial design by Design-Expert software. Finally, the optimized formulation was characterized and estimated in vitro and in vivo. In vitro release and antibacterial activity studies have revealed that the optimized formulation was homogeneous and can be released slowly, with sustainably antibacterial power. And the physical and chemical composition analysis and morphological observations further confirmed the sustained-release capability. On the other hand, in vivo studies proved that the optimized formulation significantly decreased gingival redness, bleeding, and plaque formation, avoided excessive resorption of alveolar bone, and reduced the levels of inflammatory factor in periodontitis rats. In conclusion, the optimized thermosensitive hydrogel loaded with IgY and LL37-SLNs may be a promising local sustained-release preparation for the effective treatment of periodontal diseases.
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Affiliation(s)
- Fang Wang
- Shanghai university of Medicine and Health Sciences Affiliated Zhoupu hospital, Shanghai, 201318, China; Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China; Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Naval Medical University, Shanghai, 200433, China
| | - Zhen Li
- Department of Stomatology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China
| | - Xin-Yue Gan
- Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Xiao-Ling Lu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Naval Medical University, Shanghai, 200433, China
| | - Bing-Hua Jiao
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Naval Medical University, Shanghai, 200433, China
| | - Min-Hua Shen
- Department of Stomatology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China.
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2
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Huang X, Pan X, Xiong X, Zhao Z, Cen X. Drug delivery systems for treatment of temporomandibular joint osteoarthritis. Front Pharmacol 2022; 13:1054703. [DOI: 10.3389/fphar.2022.1054703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 10/26/2022] [Indexed: 11/09/2022] Open
Abstract
The number of people suffering from temporomandibular joint osteoarthritis (TMJOA) has been increasing. TMJOA cause joint noise, pain on TMJ and/or masticatory muscles, and restricted mandibular movement, which disturb eating, laughing and conversation, and impose serious lifestyle impediments. Chondrocyte apoptosis, extracellular matrix degradation, synovitis, and subchondral bone remodeling are the main pathological features of TMJOA. Various drug delivery systems are developed to controlled release at specific activation sites with high bioactivity and inhibit rapid dilution to enable long-term therapeutic response, which present great potential for the treatment of TMJOA. This review focuses on recently developed drug delivery systems by different administration in the TMJOA treatment, and summarizes their effects, duration, safety, and limitations, which would pave the way for development of TMJOA therapy.
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Sakhi M, Khan A, Iqbal Z, Khan I, Raza A, Ullah A, Nasir F, Khan SA. Design and Characterization of Paclitaxel-Loaded Polymeric Nanoparticles Decorated With Trastuzumab for the Effective Treatment of Breast Cancer. Front Pharmacol 2022; 13:855294. [PMID: 35359855 PMCID: PMC8964068 DOI: 10.3389/fphar.2022.855294] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 02/25/2022] [Indexed: 12/12/2022] Open
Abstract
The aim of the study was to design and formulate an antibody-mediated targeted, biodegradable polymeric drug delivery system releasing drug in a controlled manner to achieve a therapeutic goal for the effective treatment of breast cancer. Antibody-mediated paclitaxel-loaded PLGA polymeric nanoformulations were prepared by the solvent evaporation method using different experimental parameters and compatibility studies. The optimized formulations were selected for in vitro and in vivo evaluation and cytotoxicity studies. The in vitro drug release studies show a biphasic release pattern for the paclitaxel-loaded PLGA nanoparticles showing a burst release for 24 h followed by an extended release for 14 days; however, a more controlled and sustained release was observed for antibody-conjugated polymeric nanoparticles. The cytotoxicity of reference drug and paclitaxel-loaded PLGA nanoparticles with and without antibody was determined by performing MTT assay against MCF-7 cells. Rabbits were used as experimental animals for the assessment of various in vivo pharmacokinetic parameters of selected formulations. The pharmacokinetic parameters such as Cmax (1.18–1.33 folds), AUC0-t (39.38–46.55 folds), MRT (10.04–12.79 folds), t1/2 (3.06–4.6 folds), and Vd (6.96–8.38 folds) have been increased significantly while clearance (4.34–4.61 folds) has been decreased significantly for the selected nanoformulations as compared to commercially available paclitaxel formulation (Paclixil®). The surface conjugation of nanoparticles with trastuzumab resulted in an increase in in vitro cytotoxicity as compared to plain nanoformulations and commercially available conventional brand (Paclixil®). The developed PLGA-paclitaxel nanoformulations conjugated with trastuzumab have the desired physiochemical characteristics, surface morphology, sustained release kinetics, and enhanced targeting.
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Affiliation(s)
- Mirina Sakhi
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Abad Khan
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
- *Correspondence: Abad Khan, ; Saeed Ahmad Khan,
| | - Zafar Iqbal
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Ismail Khan
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Abida Raza
- National Institute of LASER and Optronics, Nilore, Pakistan
| | - Asmat Ullah
- Department of Pharmacy, University of Swabi, Swabi, Pakistan
| | - Fazli Nasir
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Saeed Ahmad Khan
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Pakistan
- *Correspondence: Abad Khan, ; Saeed Ahmad Khan,
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Self-Gelling Solid Lipid Nanoparticle Hydrogel Containing Simvastatin as Suitable Wound Dressing: An Investigative Study. Gels 2022; 8:gels8010058. [PMID: 35049593 PMCID: PMC8774715 DOI: 10.3390/gels8010058] [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] [Received: 12/09/2021] [Revised: 01/02/2022] [Accepted: 01/07/2022] [Indexed: 12/14/2022] Open
Abstract
Hydrogels, an advanced interactive system, is finding use as wound dressings, however, they exhibit restricted mechanical properties, macroscopic nature, and may not manage high exudate wounds or incorporate lipophilic actives. In this study, we developed a self-gelling solid lipid nanoparticle (SLNs) dressing to incorporate simvastatin (SIM), a lipophilic, potential wound-healing agent, clinically limited due to poor solubility (0.03 mg/mL) and absorption. The study explores unconventional and novel application of SIM. The idea was to incorporate a significant amount of SIM in a soluble form and release it slowly over a prolonged time. Further, a suitable polymeric surfactant was selected that assigned a self-gelling property to SLNs (SLN-hydrogel) so as to be used as a novel wound dressing. SLNs assign porosity, elasticity, and occlusivity to the dressing to keep the wound area moist. It will also provide better tolerance and sensory properties to the hydrogel. SIM loaded SLN-hydrogel was prepared employing an industry amenable high-pressure homogenization technique. The unique hydrogel dressing was characterized for particle size, zeta potential, Fourier transform infra-red spectroscopy, powder X-ray diffraction, differential scanning calorimetry, rheology, and texture. Significant loading of SIM (10% w/w) was achieved in spherical nanoparticule hydrogel (0.3 nm (nanoparticles) to 2 µm (gelled-matrix)) that exhibited good spreadability and mechanical properties and slow release up to 72 h. SLN-hydrogel was safe as per the organization for economic co-operation and development (OECD-404) guidelines, with no signs of irritation. Complete healing of excision wound observed in rats within 11 days was 10 times better than marketed povidone-iodine product. The presented work is novel both in terms of classifying a per se SLN-hydrogel and employing SIM. Further, it was established to be a safe, effective, and industry amenable invention.
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Ottonelli I, Duskey JT, Rinaldi A, Grazioli MV, Parmeggiani I, Vandelli MA, Wang LZ, Prud’homme RK, Tosi G, Ruozi B. Microfluidic Technology for the Production of Hybrid Nanomedicines. Pharmaceutics 2021; 13:1495. [PMID: 34575571 PMCID: PMC8465086 DOI: 10.3390/pharmaceutics13091495] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/06/2021] [Accepted: 09/13/2021] [Indexed: 12/15/2022] Open
Abstract
Microfluidic technologies have recently been applied as innovative methods for the production of a variety of nanomedicines (NMeds), demonstrating their potential on a global scale. The capacity to precisely control variables, such as the flow rate ratio, temperature, total flow rate, etc., allows for greater tunability of the NMed systems that are more standardized and automated than the ones obtained by well-known benchtop protocols. However, it is a crucial aspect to be able to obtain NMeds with the same characteristics of the previously optimized ones. In this study, we focused on the transfer of a production protocol for hybrid NMeds (H-NMeds) consisting of PLGA, Cholesterol, and Pluronic® F68 from a benchtop nanoprecipitation method to a microfluidic device. For this aim, we modified parameters such as the flow rate ratio, the concentration of core materials in the organic phase, and the ratio between PLGA and Cholesterol in the feeding organic phase. Outputs analysed were the chemico-physical properties, such as size, PDI, and surface charge, the composition in terms of %Cholesterol and residual %Pluronic® F68, their stability to lyophilization, and the morphology via atomic force and electron microscopy. On the basis of the results, even if microfluidic technology is one of the unique procedures to obtain industrial production of NMeds, we demonstrated that the translation from a benchtop method to a microfluidic one is not a simple transfer of already established parameters, with several variables to be taken into account and to be optimized.
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Affiliation(s)
- Ilaria Ottonelli
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
- Clinical and Experimental Medicine Ph.D. Program, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Jason Thomas Duskey
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
| | - Arianna Rinaldi
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
- Clinical and Experimental Medicine Ph.D. Program, University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Maria Vittoria Grazioli
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
| | - Irene Parmeggiani
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
| | - Maria Angela Vandelli
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
| | - Leon Z. Wang
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA; (L.Z.W.); (R.K.P.)
| | - Robert K. Prud’homme
- Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA; (L.Z.W.); (R.K.P.)
| | - Giovanni Tosi
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
| | - Barbara Ruozi
- Nanotech Lab, Te. Far.T.I., Department Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (I.O.); (J.T.D.); (A.R.); (M.V.G.); (I.P.); (M.A.V.); (B.R.)
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Cortés H, Hernández-Parra H, Bernal-Chávez SA, Prado-Audelo MLD, Caballero-Florán IH, Borbolla-Jiménez FV, González-Torres M, Magaña JJ, Leyva-Gómez G. Non-Ionic Surfactants for Stabilization of Polymeric Nanoparticles for Biomedical Uses. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3197. [PMID: 34200640 PMCID: PMC8226872 DOI: 10.3390/ma14123197] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 12/14/2022]
Abstract
Surfactants are essential in the manufacture of polymeric nanoparticles by emulsion formation methods and to preserve the stability of carriers in liquid media. The deposition of non-ionic surfactants at the interface allows a considerable reduction of the globule of the emulsion with high biocompatibility and the possibility of oscillating the final sizes in a wide nanometric range. Therefore, this review presents an analysis of the three principal non-ionic surfactants utilized in the manufacture of polymeric nanoparticles; polysorbates, poly(vinyl alcohol), and poloxamers. We included a section on general properties and uses and a comprehensive compilation of formulations with each principal non-ionic surfactant. Then, we highlight a section on the interaction of non-ionic surfactants with biological barriers to emphasize that the function of surfactants is not limited to stabilizing the dispersion of nanoparticles and has a broad impact on pharmacokinetics. Finally, the last section corresponds to a recommendation in the experimental approach for choosing a surfactant applying the systematic methodology of Quality by Design.
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Affiliation(s)
- Hernán Cortés
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (H.C.); (F.V.B.-J.)
| | - Héctor Hernández-Parra
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México 07360, Mexico; (H.H.-P.); (I.H.C.-F.)
| | - Sergio A. Bernal-Chávez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - María L. Del Prado-Audelo
- Escuela de Ingeniería y Ciencias, Departamento de Bioingeniería, Tecnológico de Monterrey Campus Ciudad de México, CDMX, Ciudad de México 14380, Mexico;
| | - Isaac H. Caballero-Florán
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Ciudad de México 07360, Mexico; (H.H.-P.); (I.H.C.-F.)
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
| | - Fabiola V. Borbolla-Jiménez
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (H.C.); (F.V.B.-J.)
| | - Maykel González-Torres
- CONACyT-Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico;
| | - Jonathan J. Magaña
- Laboratorio de Medicina Genómica, Departamento de Genómica, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico; (H.C.); (F.V.B.-J.)
- Escuela de Ingeniería y Ciencias, Departamento de Bioingeniería, Tecnológico de Monterrey Campus Ciudad de México, CDMX, Ciudad de México 14380, Mexico;
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico;
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Miyazawa T, Itaya M, Burdeos GC, Nakagawa K, Miyazawa T. A Critical Review of the Use of Surfactant-Coated Nanoparticles in Nanomedicine and Food Nanotechnology. Int J Nanomedicine 2021; 16:3937-3999. [PMID: 34140768 PMCID: PMC8203100 DOI: 10.2147/ijn.s298606] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/31/2021] [Indexed: 12/12/2022] Open
Abstract
Surfactants, whose existence has been recognized as early as 2800 BC, have had a long history with the development of human civilization. With the rapid development of nanotechnology in the latter half of the 20th century, breakthroughs in nanomedicine and food nanotechnology using nanoparticles have been remarkable, and new applications have been developed. The technology of surfactant-coated nanoparticles, which provides new functions to nanoparticles for use in the fields of nanomedicine and food nanotechnology, is attracting a lot of attention in the fields of basic research and industry. This review systematically describes these "surfactant-coated nanoparticles" through various sections in order: 1) surfactants, 2) surfactant-coated nanoparticles, application of surfactant-coated nanoparticles to 3) nanomedicine, and 4) food nanotechnology. Furthermore, current progress and problems of the technology using surfactant-coated nanoparticles through recent research reports have been discussed.
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Affiliation(s)
- Taiki Miyazawa
- New Industry Creation Hatchery Center (NICHe), Tohoku University, Sendai, Miyagi, Japan
| | - Mayuko Itaya
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Gregor C Burdeos
- Institute for Animal Nutrition and Physiology, Christian Albrechts University Kiel, Kiel, Germany
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Teruo Miyazawa
- New Industry Creation Hatchery Center (NICHe), Tohoku University, Sendai, Miyagi, Japan
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Development and In Vitro Evaluation of Controlled Release Viagra ® Containing Poloxamer-188 Using Gastroplus ™ PBPK Modeling Software for In Vivo Predictions and Pharmacokinetic Assessments. Pharmaceuticals (Basel) 2021; 14:ph14050479. [PMID: 34070160 PMCID: PMC8158482 DOI: 10.3390/ph14050479] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/05/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022] Open
Abstract
Sildenafil is the active substance in Viagra® tablets, which is approved by the FDA to treat sexual dysfunction in men. Poor solubility and short half-life, however, can limit the span of its effectiveness. Therefore, this study focused on an oral controlled release matrix system with the aim to improve solubility, control the drug release, and sustain the duration of drug activity. The controlled release matrices were prepared with poloxamer-188, hydroxypropyl methylcellulose, and magnesium stearate. Various formulations of different ratios were developed, evaluated in vitro, and assessed in silico. Poloxamer-188 appeared to have a remarkable influence on the release profile of sildenafil citrate. In general, the rate of drug release decreased as the amount of polymer was gradually increased in the matrix system, achieving a maximum release period over 12 h. The in silico assessment by using the GastroPlus™ PBPK modeling software predicted a significant variation in Cmax, tmax, t1/2, and AUC0-t among the formulations. In conclusion, the combination of polymers in matrix systems can have substantial impact on controlling and modifying the drug release pattern.
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Amphiphilic copolymers in biomedical applications: Synthesis routes and property control. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111952. [PMID: 33812580 DOI: 10.1016/j.msec.2021.111952] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/29/2021] [Accepted: 02/02/2021] [Indexed: 12/16/2022]
Abstract
The request of new materials, matching strict requirements to be applied in precision and patient-specific medicine, is pushing for the synthesis of more and more complex block copolymers. Amphiphilic block copolymers are emerging in the biomedical field due to their great potential in terms of stimuli responsiveness, drug loading capabilities and reversible thermal gelation. Amphiphilicity guarantees self-assembly and thermoreversibility, while grafting polymers offers the possibility of combining blocks with various properties in one single material. These features make amphiphilic block copolymers excellent candidates for fine tuning drug delivery, gene therapy and for designing injectable hydrogels for tissue engineering. This manuscript revises the main techniques developed in the last decade for the synthesis of amphiphilic block copolymers for biomedical application. Strategies for fine tuning the properties of these novel materials during synthesis are discussed. A deep knowledge of the synthesis techniques and their effect on the performance and the biocompatibility of these polymers is the first step to move them from the lab to the bench. Current results predict a bright future for these materials in paving the way towards a smarter, less invasive, while more effective, medicine.
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Adeleke OA, Fisher L, Moore IN, Nardone GA, Sher A. A Long-Acting Thermoresponsive Injectable Formulation of Tin Protoporphyrin Sustains Antitubercular Efficacy in a Murine Infection Model. ACS Pharmacol Transl Sci 2020; 4:276-287. [PMID: 33615179 PMCID: PMC7887855 DOI: 10.1021/acsptsci.0c00185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Indexed: 11/29/2022]
Abstract
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Tuberculosis is the leading cause of death from a single infectious agent, ranking
above the human immunodeficiency virus (HIV). Effective treatment using antibiotics is
achievable, but poor patient compliance constitutes a major challenge impeding
successful pharmacotherapeutic outcomes. This is often due to the prolonged treatment
periods required and contributes significantly to the rising incidence of drug
resistance, which is a major cause of tuberculosis mortality. Thus, innovative
interventions capable of encouraging compliance and decreasing lengthy and frequent
dosing are needed. Previously, aqueous tin protoporphyrin IX (SnPPIX), a heme
oxygenase-1 inhibitor, administered as multiple daily intraperitoneal (IP) injections,
showed considerable antitubercular efficacy and treatment shortening capabilities as a
host-directed therapy in infected mice. Since daily IP injection is a clinically
impractical administration approach, this proof-of-concept study aims to develop a
novel, sustained action injectable formulation of SnPPIX for safe intramuscular (IM)
administration. Herein, a SnPPIX-loaded poloxamer-poly(acrylic acid)-based
thermoresponsive injectable formulation (SnPPIX-TIF) is designed for effective IM
delivery. Results show SnPPIX-TIF is microparticulate, syringeable, injectable, and
exhibits complete in vitro/in vivo gelation.
Administered once weekly, SnPPIX-TIF significantly prolonged absorption and
antimicrobial efficacy in infected mice. In addition, SnPPIX-TIF is well-tolerated
in vivo; results from treated animals show no significant
histopathologic alterations and were indistinguishable from the untreated control group,
thus supporting its biocompatibility and preclinical safety. Overall, the IM delivery of
the thermoresponsive injectable formulation safely sustains antitubercular effect in an
infected murine model and decreases the number of injections required, signifying a
potentially practical approach for future clinical translation.
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Affiliation(s)
- Oluwatoyin A Adeleke
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, US Department of Health and Human Services, Bethesda, Maryland 20892, United States.,Division of Pharmaceutical Sciences, School of Pharmacy, Sefako Makgatho Health Science University, Pretoria 0208, South Africa
| | - Logan Fisher
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, US Department of Health and Human Services, Bethesda, Maryland 20892, United States
| | - Ian N Moore
- Infectious Disease Pathogenesis Section (IDPS), Comparative Medicine Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, US Department of Health and Human Services, Rockville, Maryland 20852, United States
| | - Glenn A Nardone
- Protein Chemistry Section, Research Technologies Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, US Department of Health and Human Services, Rockville, Maryland 20852, United States
| | - Alan Sher
- Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, US Department of Health and Human Services, Bethesda, Maryland 20892, United States
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