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Abbasiasl T, Mirlou F, Mirzajani H, Bathaei MJ, Istif E, Shomalizadeh N, Cebecioğlu RE, Özkahraman EE, Yener UC, Beker L. A Wearable Touch-Activated Device Integrated with Hollow Microneedles for Continuous Sampling and Sensing of Dermal Interstitial Fluid. Adv Mater 2024; 36:e2304704. [PMID: 37709513 DOI: 10.1002/adma.202304704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/20/2023] [Indexed: 09/16/2023]
Abstract
Dermal interstitial fluid (ISF) is emerging as a rich source of biomarkers that complements conventional biofluids such as blood and urine. However, the impact of ISF sampling in clinical applications has been limited owing to the challenges associated with extraction. The implementation of microneedle-based wearable devices that can extract dermal ISF in a pain-free and easy-to-use manner has attracted growing attention in recent years. Here, a fully integrated touch-activated wearable device based on a laser-drilled hollow microneedle (HMN) patch for continuous sampling and sensing of dermal ISF is introduced. The developed platform can produce and maintain the required vacuum pressure (as low as ≈ -53 kPa) to collect adequate volumes of ISF (≈2 µL needle-1 h-1 ) for medical applications. The vacuum system can be activated through a one-touch finger operation. A parametric study is performed to investigate the effect of microneedle array size, vacuum pressure, and extraction duration on collected ISF. The capability of the proposed platform for continuous health monitoring is further demonstrated by the electrochemical detection of glucose and pH levels of ISF in animal models. This HMN-based system provides an alternative tool to the existing invasive techniques for ISF collection and sensing for medical diagnosis and treatment.
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Affiliation(s)
- Taher Abbasiasl
- Department of Biomedical Sciences and Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Fariborz Mirlou
- Department of Biomedical Sciences and Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Hadi Mirzajani
- Department of Mechanical Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Mohammad Javad Bathaei
- Department of Biomedical Sciences and Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Emin Istif
- Faculty of Engineering and Natural Sciences, Kadir Has University, Cibali, Istanbul, 34083, Turkey
| | - Narges Shomalizadeh
- Koç University Research Center for Translational Research (KUTTAM), Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Rümeysa Emine Cebecioğlu
- Department of Biomedical Sciences and Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Ecem Ezgi Özkahraman
- Department of Material Science and Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Umut Can Yener
- Department of Mechanical Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
| | - Levent Beker
- Department of Biomedical Sciences and Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
- Department of Mechanical Engineering, Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
- Koç University Research Center for Translational Research (KUTTAM), Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
- Nanofabrication and Nanocharacterization Center for Scientific and Technological Advanced Research (n2Star), Koç University, Rumelifeneri Yolu, Sarıyer, Istanbul, 34450, Turkey
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Ren Y, Li J, Chen Y, Wang J, Chen Y, Wang Z, Zhang Z, Chen Y, Shi X, Cao L, Zhang J, Dong H, Yan C, Li Z. Customized flexible hollow microneedles for psoriasis treatment with reduced-dose drug. Bioeng Transl Med 2023; 8:e10530. [PMID: 37476063 PMCID: PMC10354769 DOI: 10.1002/btm2.10530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/31/2023] [Accepted: 04/12/2023] [Indexed: 07/22/2023] Open
Abstract
Microneedles, especially hollow microneedles (HMNs), play an important role in drug delivery, but most of the current HMNs are manufactured based on silicon microfabrication (lithography, etching, etc.), which are slightly conservative due to the lack of low-cost, batch-scale and customized preparation approach, especially for the HMNs with flexible substrate. For the first time, we propose the use of a high-precision 3D printed master mold followed by a dual-molding process for the preparation of HMNs with different shapes, heights, and inner and outer diameters to satisfy different drug delivery needs. The 3D printed master mold and negative mold can be reused, thereby significantly reducing the cost. HMNs are based on biocompatible materials, such as heat-curing polymers or light-curing resins. The thickness and rigidity/flexibility characteristics of the substrate can be customized for different applications. The drug delivery efficiency of the fabricated HMNs was verified by the in situ treatment of psoriasis on the backs of mice, which required only a 0.1-fold oral dose to achieve similar efficacy, and the associated side effects and drug toxicity were reduced. Thus, this dual-molding process can reinvigorate HMNs development.
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Affiliation(s)
- Yingjie Ren
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Junshi Li
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Yiwen Chen
- School of Life SciencesBeijing University of Chinese MedicineBeijingChina
| | - Jing Wang
- School of Life SciencesBeijing University of Chinese MedicineBeijingChina
| | - Yuxuan Chen
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Zhongyan Wang
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Zhitong Zhang
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Yufeng Chen
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Xiaoyi Shi
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Lu Cao
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- College of EngineeringPeking UniversityBeijingChina
| | - Jiayan Zhang
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Huang Dong
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
| | - Cong Yan
- School of Life SciencesBeijing University of Chinese MedicineBeijingChina
| | - Zhihong Li
- National Key Laboratory of Science and Technology on Micro/Nano FabricationSchool of Integrated CircuitsBeijingChina
- Beijing Advanced Innovation Center for Integrated CircuitsBeijingChina
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Shukla S, Huston RH, Cox BD, Satoskar AR, Narayan RJ. Transdermal delivery via medical device technologies. Expert Opin Drug Deliv 2022; 19:1505-1519. [PMID: 36222232 DOI: 10.1080/17425247.2022.2135503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Despite their effectiveness and indispensability, many drugs are poorly solvated in aqueous solutions. Over recent decades, the need for targeted drug delivery has led to the development of pharmaceutical formulations with enhanced lipid solubility to improve their delivery properties. Therefore, a dependable approach for administering lipid-soluble drugs needs to be developed. AREAS COVERED The advent of 3D printing or additive manufacturing (AM) has revolutionized the development of medical devices, which can effectively enable the delivery of lipophilic drugs to the targeted tissues. This review focuses on the use of microneedles and iontophoresis for transdermal drug delivery. Microneedle arrays, inkjet printing, and fused deposition modeling have emerged as valuable approaches for delivering several classes of drugs. In addition, iontophoresis has been successfully employed for the effective delivery of macromolecular drugs. EXPERT OPINION Microneedle arrays, inkjet printing, and fused deposition are potentially useful for many drug delivery applications; however, the clinical and commercial adoption rates of these technologies are relatively low. Additional efforts is needed to enable the pharmaceutical community to fully realize the benefits of these technologies.
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Affiliation(s)
- Shubhangi Shukla
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA
| | - Ryan H Huston
- Department of Microbiology, The Ohio State University, 484 W. 12 Ave, Columbus, OH 43210, USA
| | - Blake D Cox
- Division of Anatomy, The Ohio State University, 370 W. 9th Avenue, Columbus, OH 43210, USA
| | - Abhay R Satoskar
- Departments of Pathology and Microbiology, Wexner Medical Center, The Ohio State University, USA
| | - Roger J Narayan
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, USA
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Papadimitriou P, Andriotis EG, Fatouros D, Tzetzis D. Design and Prototype Fabrication of a Cost-Effective Microneedle Drug Delivery Apparatus Using Fused Filament Fabrication, Liquid Crystal Display and Semi-Solid Extrusion 3D Printing Technologies. Micromachines (Basel) 2022; 13:1319. [PMID: 36014241 PMCID: PMC9415897 DOI: 10.3390/mi13081319] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/10/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
The current study describes the design of a cost-effective drug delivery apparatus that can be manufactured, assembled, and utilized as easily and quickly as possible, minimizing the time and expense of the supply chain. This apparatus could become a realistic alternative method of providing a vaccine or drug in harsh circumstances, including humanitarian disasters or a lack of medical and nursing staff, conditions that are frequently observed in developing countries. Simultaneously, with the use of microneedles (MNs), the apparatus can benefit from the numerous advantages offered by them during administration. The hollow microneedles in particular are internally perforated and are capable of delivering the active substance to the skin. The apparatus was designed with appropriate details in computer aided design software, and various 3D printing technologies were utilized in order to fabricate the prototype. The parts that required minimum accuracy, such as the main body of the apparatus, were fabricated with fused filament fabrication. The internal parts and the hollow microneedles were fabricated with liquid crystal display, and the substance for the drug loading carrier, which was an alginate gel cylinder, was fabricated with semi-solid extrusion 3D printing.
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Affiliation(s)
- Petros Papadimitriou
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, GR-57001 Thessaloniki, Greece
| | - Eleftherios G. Andriotis
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Dimitrios Fatouros
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutical Sciences, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Dimitrios Tzetzis
- Digital Manufacturing and Materials Characterization Laboratory, School of Science and Technology, International Hellenic University, GR-57001 Thessaloniki, Greece
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Abstract
Transdermal drug delivery (TDD) is an attractive alternative to oral and hypodermic injection drug administration, and is poised to increase its impact on medicine and pharmaceutical design. Microneedles (MNs) are a new minimally invasive TDD method widely used in medicine and cosmetology. MNs create a microscale channel from the stratum corneum to the dermis and enable drug delivery of hydrophilic and macromolecular into the skin. Although MNs allow different drugs to penetrate the stratum corneum, they cannot provide an extra driving force for drug transport in tissue. To overcome this limitation and achieve fast, controllable drug delivery, an integrated 3D-printed ultrasonic MN array (USMA) device consisting of hollow MNs and an ultrasonic transducer is proposed. The hollow MNs enable drug to penetrate the stratum corneum, and the ultrasound transmitted through the MNs provides the driving force for drug transportation in tissue. Using methylene blue and bovine serum albumin as model drugs, we tested the drug delivery performance of USMA on porcine skin; the results show that USMA significantly enhanced the delivery efficiency of model drugs. Besides, USMA obviously reduced MNs insertion force and tissue damage, which were well-tolerated and gentle. This study suggests that the integrated ultrasonic MN array has great potential for clinical drug delivery with high efficiency and lessening the suffering of patients.
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Affiliation(s)
- Ziyan Chen
- School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Huayi Wu
- School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Shuang Zhao
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410011, China
| | - Xiang Chen
- The Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410011, China
| | - Tianhong Wei
- The Department of Ultrasound, Xiangya Hospital, Central South University, Changsha 410011, China
| | - Hanmin Peng
- State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China
| | - Zeyu Chen
- School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.,The Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410011, China
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Mathew E, Pitzanti G, Gomes dos Santos AL, Lamprou DA. Optimization of Printing Parameters for Digital Light Processing 3D Printing of Hollow Microneedle Arrays. Pharmaceutics 2021; 13:1837. [PMID: 34834250 PMCID: PMC8622592 DOI: 10.3390/pharmaceutics13111837] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/30/2021] [Accepted: 11/01/2021] [Indexed: 12/02/2022] Open
Abstract
3D printing is an emerging technology aiming towards personalized drug delivery, among many other applications. Microneedles (MN) are a viable method for transdermal drug delivery that is becoming more popular for delivery through the skin. However, there is a need for a faster fabrication process with potential for easily exploring different geometries of MNs. In the current study, a digital light processing (DLP) method of 3D printing for fabrication of hollow MN arrays using commercial UV curable resin was proposed. Print quality was optimised by assessing the effect of print angle on needle geometries. Mechanical testing of MN arrays was conducted using a texture analyser. Angled prints were found to produce prints with geometries closer to the CAD designs. Curing times were found to affect the mechanical strength of MNs, with arrays not breaking when subjected to 300 N of force but were bent. Overall, DLP process produced hollow MNs with good mechanical strength and depicts a viable, quick, and efficient method for the fabrication of hollow MN arrays.
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Affiliation(s)
- Essyrose Mathew
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (E.M.); (G.P.)
| | - Giulia Pitzanti
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (E.M.); (G.P.)
| | - Ana L. Gomes dos Santos
- Pharmaceutical Sciences, R&D BioPharmaceuticals, AstraZeneca, Granta Park, Cambridge CB21 6GH, UK;
| | - Dimitrios A. Lamprou
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (E.M.); (G.P.)
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Du G, Woythe L, van der Maaden K, Leone M, Romeijn S, Kros A, Kersten G, Jiskoot W, Bouwstra JA. Coated and Hollow Microneedle-Mediated Intradermal Immunization in Mice with Diphtheria Toxoid Loaded Mesoporous Silica Nanoparticles. Pharm Res 2018; 35:189. [PMID: 30105542 PMCID: PMC6096895 DOI: 10.1007/s11095-018-2476-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/06/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE To examine the immunogenicity of diphtheria toxoid (DT) loaded mesoporous silica nanoparticles (MSNs) after coated and hollow microneedle-mediated intradermal immunization in mice. METHODS DT was loaded into MSNs and the nanoparticle surface was coated with a lipid bilayer (LB-MSN-DT). To prepare coated microneedles, alternating layers of negatively charged LB-MSN-DT and positively charged N-trimethyl chitosan (TMC) were coated onto pH-sensitive microneedle arrays via a layer-by-layer approach. Microneedle arrays coated with 5 or 3 layers of LB-MSN-DT were used to immunize mice and the elicited antibody responses were compared with those induced by hollow microneedle-injected liquid formulation of LB-MSN-DT. Liquid DT formulation with and without TMC (DT/TMC) injected by a hollow microneedle were used as controls. RESULTS LB-MSN-DT had an average size of about 670 nm and a zeta potential of -35 mV. The encapsulation efficiency of DT in the nanoparticles was 77%. The amount of nano-encapsulated DT coated onto the microneedle array increased linearly with increasing number of the coating layers. Nano-encapsulated DT induced stronger immune responses than DT solution when delivered intradermally via hollow microneedles, but not when delivered via coated microneedles. CONCLUSION Both the nano-encapsulation of DT and the type of microneedles affect the immunogenicity of the antigen.
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Affiliation(s)
- Guangsheng Du
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Laura Woythe
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Koen van der Maaden
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Mara Leone
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Stefan Romeijn
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Alexander Kros
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, The Netherlands
| | - Gideon Kersten
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
- Institute for Translational Vaccinology (Intravacc), Bilthoven, The Netherlands
| | - Wim Jiskoot
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Joke A Bouwstra
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands.
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Farias C, Lyman R, Hemingway C, Chau H, Mahacek A, Bouzos E, Mobed-Miremadi M. Three-Dimensional (3D) Printed Microneedles for Microencapsulated Cell Extrusion. Bioengineering (Basel) 2018; 5:E59. [PMID: 30065227 PMCID: PMC6164407 DOI: 10.3390/bioengineering5030059] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 07/22/2018] [Accepted: 07/26/2018] [Indexed: 12/17/2022] Open
Abstract
Cell-hydrogel based therapies offer great promise for wound healing. The specific aim of this study was to assess the viability of human hepatocellular carcinoma (HepG2) cells immobilized in atomized alginate capsules (3.5% (w/v) alginate, d = 225 µm ± 24.5 µm) post-extrusion through a three-dimensional (3D) printed methacrylate-based custom hollow microneedle assembly (circular array of 13 conical frusta) fabricated using stereolithography. With a jetting reliability of 80%, the solvent-sterilized device with a root mean square roughness of 158 nm at the extrusion nozzle tip (d = 325 μm) was operated at a flowrate of 12 mL/min. There was no significant difference between the viability of the sheared and control samples for extrusion times of 2 h (p = 0.14, α = 0.05) and 24 h (p = 0.5, α = 0.05) post-atomization. Factoring the increase in extrusion yield from 21.2% to 56.4% attributed to hydrogel bioerosion quantifiable by a loss in resilience from 5470 (J/m³) to 3250 (J/m³), there was no significant difference in percentage relative payload (p = 0.2628, α = 0.05) when extrusion occurred 24 h (12.2 ± 4.9%) when compared to 2 h (9.9 ± 2.8%) post-atomization. Results from this paper highlight the feasibility of encapsulated cell extrusion, specifically protection from shear, through a hollow microneedle assembly reported for the first time in literature.
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Affiliation(s)
- Chantell Farias
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053-0583, USA.
| | - Roman Lyman
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053-0583, USA.
| | - Cecilia Hemingway
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053-0583, USA.
| | - Huong Chau
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053-0583, USA.
| | - Anne Mahacek
- SCU Maker Lab, Santa Clara University, Santa Clara, CA 95053-0583, USA.
| | - Evangelia Bouzos
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053-0583, USA.
| | - Maryam Mobed-Miremadi
- Department of Bioengineering, Santa Clara University, Santa Clara, CA 95053-0583, USA.
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Ogai N, Nonaka I, Toda Y, Ono T, Minegishi S, Inou A, Hachiya M, Fukamizu H. Enhanced immunity in intradermal vaccination by novel hollow microneedles. Skin Res Technol 2018; 24:630-635. [PMID: 29707828 DOI: 10.1111/srt.12576] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND The intradermal (ID) route for vaccination represents an effective alternative to subcutaneous (SC)/intramuscular administration to induce protective immunity. However, a critical issue associated with ID vaccination is the precise delivery of solution in the upper dermis, which ensures enhanced immunity. METHODS We fabricated a hollow microneedle unit made of poly-glycolic acid by injection molding and bonding, and created a dedicated prototype injector. To ensure ID delivery of solution, the injected site was macroscopically and microscopically examined. Serum immunoglobulin G antibody production was measured by enzyme immunoassay and compared in groups of rats following either ID delivery with microneedles or SC administration with a 27-G stainless needle of graded vaccine doses. RESULTS The unit used a tandem array of six microneedles, each with a side delivery hole, and a conduit inside for solution. Microneedles installed in the injector punctured the skin with the aid of a spring. Injection of solution formed a wheal due to ID distribution. Histologically, a wedge-shaped skin defect in the upper skin corresponded to each puncture site. Antibody titers following vaccinations on days 1 and 8 were significantly higher with ID injection than with SC delivery on day 15 and every 7 days thereafter until day 36 with mumps vaccination, and until day 36 with varicella vaccination. CONCLUSIONS The microneedle unit presented here delivered solution intradermally without any difficulty and evoked antibody responses against viruses even with the reduced vaccine volume. Our findings confirm promising results of ID delivery as an immunogenic option to enhance vaccination efficacy.
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Affiliation(s)
- N Ogai
- ASTI Corporation, Hamamatsu, Japan
| | - I Nonaka
- ASTI Corporation, Hamamatsu, Japan
| | - Y Toda
- ASTI Corporation, Hamamatsu, Japan
| | - T Ono
- ASTI Corporation, Hamamatsu, Japan
| | | | - A Inou
- ASTI Corporation, Hamamatsu, Japan
| | | | - H Fukamizu
- Department of Plastic and Reconstructive Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Schipper P, van der Maaden K, Romeijn S, Oomens C, Kersten G, Jiskoot W, Bouwstra J. Determination of Depth-Dependent Intradermal Immunogenicity of Adjuvanted Inactivated Polio Vaccine Delivered by Microinjections via Hollow Microneedles. Pharm Res 2016; 33:2269-79. [PMID: 27317570 DOI: 10.1007/s11095-016-1965-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 04/27/2016] [Indexed: 01/30/2023]
Abstract
PURPOSE The aim of this study was to investigate the depth-dependent intradermal immunogenicity of inactivated polio vaccine (IPV) delivered by depth-controlled microinjections via hollow microneedles (HMN) and to investigate antibody response enhancing effects of IPV immunization adjuvanted with CpG oligodeoxynucleotide 1826 (CpG) or cholera toxin (CT). METHODS A novel applicator for HMN was designed to permit depth- and volume-controlled microinjections. The applicator was used to immunize rats intradermally with monovalent IPV serotype 1 (IPV1) at injection depths ranging from 50 to 550 μm, or at 400 μm for CpG and CT adjuvanted immunization, which were compared to intramuscular immunization. RESULTS The applicator allowed accurate microinjections into rat skin at predetermined injection depths (50-900 μm), -volumes (1-100 μL) and -rates (up to 60 μL/min) with minimal volume loss (±1-2%). HMN-mediated intradermal immunization resulted in similar IgG and virus-neutralizing antibody titers as conventional intramuscular immunization. No differences in IgG titers were observed as function of injection depth, however IgG titers were significantly increased in the CpG and CT adjuvanted groups (7-fold). CONCLUSION Intradermal immunogenicity of IPV1 was not affected by injection depth. CpG and CT were potent adjuvants for both intradermal and intramuscular immunization, allowing effective vaccination upon a minimally-invasive single intradermal microinjection by HMN.
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Affiliation(s)
- Pim Schipper
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Koen van der Maaden
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Stefan Romeijn
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Cees Oomens
- Soft Tissue Biomechanics and Engineering, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Gideon Kersten
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
- Intravacc (Institute for Translational Vaccinology), Bilthoven, The Netherlands
| | - Wim Jiskoot
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands
| | - Joke Bouwstra
- Division of Drug Delivery Technology, Cluster BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, P.O. Box 9502, 2300 RA, Leiden, The Netherlands.
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