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Qin M, Luo J, Patel B, Thong KX, Latefa S, Shao D, Tanner A, Yu-Wai-Man C. Developing a synergistic rate-retarding polymeric implant for controlling monoclonal antibody delivery in minimally invasive glaucoma surgery. Int J Biol Macromol 2024; 272:132655. [PMID: 38797299 DOI: 10.1016/j.ijbiomac.2024.132655] [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: 03/30/2024] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Monoclonal antibodies (mAbs) have garnered substantial attention within the field of ophthalmology and can be used to suppress scar formation after minimally invasive glaucoma surgeries. Here, by controlling mAb passive diffusion, we developed a polymeric, rate-controlling membrane reservoir loaded with poly(lactic-co-glycolic acid) microspheres to deliver mAb for several weeks. Different parameters were tested to ensure that the microspheres achieved a good quality characteristic, and our results showed that 1 %W/V emulsifier with 5 %W/V NaCl achieved mAb-loaded microspheres with the highest stability, encapsulation efficiency and minimal burst release. Then, we fabricated and compared 10 types of microporous films based on polylactic acid (PLA), polycaprolactone (PCL), and polyethylene glycol (PEG). Our results revealed distinct pore characteristics and degradation patterns in different films due to varying polymer properties, and all the polymeric film formulations showed good biocompatibility in both human trabecular meshwork cells and human conjunctival fibroblasts. Finally, the optimized microspheres were loaded into the reservoir-type polymeric implant assembled by microporous membranes with different surface coating modifications. The implant formulation, which was fabricated by 60 PCL: 40 PEG (3 %W/V) polymer with 0.1 %W/V poly(lactic-co-glycolic acid) barrier, exerted the best drug release profile that can sustained release mAb (83.6 %) for 4 weeks.
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Affiliation(s)
- Mengqi Qin
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK
| | - Jinyuan Luo
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK
| | - Brihitejas Patel
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK
| | - Kai Xin Thong
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK
| | - Samar Latefa
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK
| | - Daniel Shao
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK
| | - Alexander Tanner
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK
| | - Cynthia Yu-Wai-Man
- Faculty of Life Sciences & Medicine, King's College London, London SE1 1UL, UK.
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Ajalloueian F, Eklund Thamdrup LH, Mazzoni C, Petersen RS, Keller SS, Boisen A. High-yield fabrication of monodisperse multilayer nanofibrous microparticles for advanced oral drug delivery applications. Heliyon 2024; 10:e30844. [PMID: 38799753 PMCID: PMC11126835 DOI: 10.1016/j.heliyon.2024.e30844] [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: 02/21/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024] Open
Abstract
Recent advances in the use of nano- and microparticles in drug delivery, cell therapy, and tissue engineering have led to increasing attention towards nanostructured microparticulate formulations for maximum benefit from both nano- and micron sized features. Scalable manufacturing of monodisperse nanostructured microparticles with tunable size, shape, content, and release rate remains a big challenge. Current technology, mainly comprises complex multi-step chemical procedures with limited control over these aspects. Here, we demonstrate a novel technique for high-yield fabrication of monodisperse monolayer and multilayer nanofibrous microparticles (MoNami and MuNaMi respectively). The fabrication procedure includes sequential electrospinning followed by micro-cutting at room temperature and transfer of particles for collection. The big advantage of the introduced technique is the potential to apply several polymer-drug combinations forming multilayer microparticles enjoying extracellular matrix (ECM)-mimicking architecture with tunable release profile. We demonstrate the fabrication and study the factors affecting the final three-dimensional structure. A model drug is encapsulated into a three-layer sheet (PLGA-pullulan-PLGA), and we demonstrate how the release profile changes from burst to sustain by simply cutting particles out of the electrospun sheet. We believe our fabrication method offers a unique and facile platform for realizing advanced microparticles for oral drug delivery applications.
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Affiliation(s)
- Fatemeh Ajalloueian
- Department of Health Technology, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800, Kgs. Lyngby, Denmark
| | - Lasse Højlund Eklund Thamdrup
- Department of Health Technology, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800, Kgs. Lyngby, Denmark
| | - Chiara Mazzoni
- Department of Health Technology, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800, Kgs. Lyngby, Denmark
| | - Ritika Singh Petersen
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Stephan Sylvest Keller
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Anja Boisen
- Department of Health Technology, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
- The Danish National Research Foundation and Villum Foundation's Center for Intelligent Drug Delivery and Sensing Using Microcontainers and Nanomechanics (IDUN), Department of Health Technology, Technical University of Denmark, Ørsted Plads, 2800, Kgs. Lyngby, Denmark
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Dey N, Santhiya D, Das A. One‐Pot Synthesis of Doxorubicin‐Bioactive Glass‐Ceramic Hybrid Nanoparticles through a Bio‐Inspired Route for Anti‐Cancer Therapy. ChemistrySelect 2023. [DOI: 10.1002/slct.202203664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Namit Dey
- Department of Biotechnology Delhi Technological University Shahbad Daulatpur Delhi-110042 India
- Department of Biotechnology Delhi Technological University Shahbad Daulatpur Delhi-110042 India
| | - Deenan Santhiya
- Department of Applied Chemistry Delhi Technological University Shahbad Daulatpur Delhi-110042 India
| | - Asmita Das
- Department of Biotechnology Delhi Technological University Shahbad Daulatpur Delhi-110042 India
- Department of Biotechnology Delhi Technological University Shahbad Daulatpur Delhi-110042 India
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Rathod S, Arya S, Kanike S, Shah SA, Bahadur P, Tiwari S. Advances on nanoformulation approaches for delivering plant-derived antioxidants: A case of quercetin. Int J Pharm 2022; 625:122093. [PMID: 35952801 DOI: 10.1016/j.ijpharm.2022.122093] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/21/2022] [Accepted: 08/04/2022] [Indexed: 10/15/2022]
Abstract
Oxidative stress has been implicated in tumorigenic, cardiovascular, neuro-, and age-related degenerative changes. Antioxidants minimize the oxidative damage through neutralization of reactive oxygen species (ROS) and other causative agents. Ever since the emergence of COVID-19, plant-derived antioxidants have received enormous attention, particularly in the Indian subcontinent. Quercetin (QCT), a bio-flavonoid, exists in the glycosylated form in fruits, berries and vegetables. The antioxidant potential of QCT analogs relates to the number of free hydroxyl groups in their structure. Despite presence of these groups, QCT exhibits substantial hydrophobicity. Formulation scientists have tested nanotechnology-based approaches for its improved solubilization and delivery to the intended site of action. By the virtue of its hydrophobicity, QCT gets encapsulated in nanocarriers carrying hydrophobic domains. Apart from passive accumulation, active uptake of such formulations into the target cells can be facilitated through well-studied functionalization strategies. In this review, we have discussed the approaches of improving solubilization and bioavailability of QCT with the use of nanoformulations.
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Affiliation(s)
- Sachin Rathod
- UKA Tarsadia University, Maliba Pharmacy College, Gopal-Vidyanagar Campus, Surat 394350, India
| | - Shristi Arya
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India
| | - Shirisha Kanike
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India
| | - Shailesh A Shah
- UKA Tarsadia University, Maliba Pharmacy College, Gopal-Vidyanagar Campus, Surat 394350, India
| | - Pratap Bahadur
- Department of Chemistry, Veer Narmad South Gujarat University, Surat 395007, India
| | - Sanjay Tiwari
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Raebareli, Lucknow 226002, India.
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Protective effect of l-carnitine-loaded solid lipid nanoparticles against H 2O 2-induced genotoxicity and apoptosis. Colloids Surf B Biointerfaces 2022; 212:112365. [PMID: 35124408 DOI: 10.1016/j.colsurfb.2022.112365] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 12/14/2021] [Accepted: 01/23/2022] [Indexed: 12/12/2022]
Abstract
L-carnitine (LC) is a highly water-soluble compound involved in the β-oxidation of lipids and transportation of long-chain fatty acids across the membrane of mitochondria. However, the higher hydrophilicity of LC limits its free diffusion across the bilayer lipid membrane of intestinal epithelium in oral administration, decreasing oral bioavailability. Drug delivery with nanoparticles enhances cargo bioavailability and cellular uptake and improves therapeutic outcomes while decreasing unwanted side effects. Here, we proposed solid lipid nanoparticles (SLNs) as a hydrophobic carrier for LC delivery, aiming at increasing LC bioavailability and its protective role against intracellular oxidative stress damages. The LC-SLNs were prepared using the hot homogenization technique, and different physicochemical properties were investigated. The inhibition of H2O2-induced ROS generation in human umbilical vein endothelial cells (HUVECs) with plain LC and LC-SLNs was investigated. Moreover, various in vitro experiments were performed to assess whether LC-SLNs can protect HUVECs from H2O2-induced genotoxicity and apoptosis. The monodispersed and spherical blank SLNs and LC-SLNs were 104 ± 1.8 and 128 ± 1.5 nm, respectively with a drug loading (DL) of 11.49 ± 0.78 mg/mL and acceptable encapsulation efficiency (EE%) (69.09 ± 1.12) of LC-SLNs. The formulation process did not affect the antioxidant properties of LC. MTT assay and comet assay demonstrated that the LC-SLNs decreased cytotoxicity and genotoxicity of H2O2, respectively on HUVECs. Besides, LC-SLNs more inhibited ROS generation, along with apoptotic events in H2O2-treated HUVECs compared to the plain LC. Altogether, our findings affirmed the protective effects of LC-SLNs against H2O2-induced genotoxicity and apoptosis in HUVECs. In conclusion, LC-SLN formulation is a promising drug delivery system to overcome the bioavailability issue of hydrophilic LC, enhancing the antioxidant and biological properties of the plain LC.
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Brown B, Ward A, Fazili Z, Østergaard J, Asare-Addo K. Application of UV dissolution imaging to pharmaceutical systems. Adv Drug Deliv Rev 2021; 177:113949. [PMID: 34461199 DOI: 10.1016/j.addr.2021.113949] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 08/11/2021] [Accepted: 08/23/2021] [Indexed: 12/19/2022]
Abstract
UV-vis spectrometry is widely used in the pharmaceutical sciences for compound quantification, alone or in conjunction with separation techniques, due to most drug entities possessing a chromophore absorbing light in the range 190-800 nm. UV dissolution imaging, the scope of this review, generates spatially and temporally resolved absorbance maps by exploiting the UV absorbance of the analyte. This review aims to give an introduction to UV dissolution imaging and its use in the determination of intrinsic dissolution rates and drug release from whole dosage forms. Applications of UV imaging to non-oral formulations have started to emerge and are reviewed together with the possibility of utilizing UV imaging for physical chemical characterisation of drug substances. The benefits of imaging drug diffusion and transport processes are also discussed.
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Tian Y, Orlu M, Woerdenbag HJ, Scarpa M, Kiefer O, Kottke D, Sjöholm E, Öblom H, Sandler N, Hinrichs WLJ, Frijlink HW, Breitkreutz J, Visser JC. Oromucosal films: from patient centricity to production by printing techniques. Expert Opin Drug Deliv 2019; 16:981-993. [DOI: 10.1080/17425247.2019.1652595] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yu Tian
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | - Mine Orlu
- School of Pharmacy, University College London, London, Bloomsbury, UK
| | - Herman J. Woerdenbag
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | | | - Olga Kiefer
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Dina Kottke
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Erica Sjöholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, FI, Finland
| | - Heidi Öblom
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, FI, Finland
| | - Niklas Sandler
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, FI, Finland
| | - Wouter L. J. Hinrichs
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | - Henderik W. Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
| | - Jörg Breitkreutz
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - J. Carolina Visser
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, AV, The Netherlands
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