201
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Okada N. [Development of an Immune Regulation Technology Targeting the Skin and Promotion of the Practical Applications of Transcutaneous Vaccination/Immunotherapy]. YAKUGAKU ZASSHI 2020; 139:1129-1137. [PMID: 31474627 DOI: 10.1248/yakushi.19-00090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the premise of vaccination and allergen-specific immunotherapy, transcutaneous formulations have an advantage over conventional subcutaneous injections in terms of convenience, simplicity of delivery, and painless administration into the skin. Additionally, since transcutaneous formulations can be rendered cold-chain free, they do not require expert handling during transportation, storage, and stockpiling, which enables reductions in costs and distribution to distant areas. Furthermore, transcutaneous formulations are effective for improving adherence in children with phobias toward injection needles and may help in persuading them to perform self-vaccination and home immunotherapy against allergies in the future. We have been promoting the development of innovative "patch-type formulations for vaccination and immunotherapy" which regard skin as an immune organ and utilize our original transcutaneous administration devices (hydrophilic gel patch and microneedle patch) for their delivery. We have confirmed the safety and efficacy of transcutaneous formulations not only in demonstration experiments using animals but also in physician-initiated clinical studies. Additionally, in order to elucidate the mechanism for the induction of immune responses by transcutaneous formulations, we analyzed the immunological events occurring in the skin and regional lymph nodes which accompanied the application of transcutaneous administration devices or the delivery of antigens (vaccines and allergens) to the skin surface layer. This review presents our results from basic to clinical research on the development of transcutaneous formulations for vaccines and allergen-specific immunotherapy.
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Affiliation(s)
- Naoki Okada
- Graduate School of Pharmaceutical Sciences, Osaka University
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202
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Liu GS, Kong Y, Wang Y, Luo Y, Fan X, Xie X, Yang BR, Wu MX. Microneedles for transdermal diagnostics: Recent advances and new horizons. Biomaterials 2020; 232:119740. [PMID: 31918227 PMCID: PMC7432994 DOI: 10.1016/j.biomaterials.2019.119740] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 12/21/2019] [Accepted: 12/25/2019] [Indexed: 12/16/2022]
Abstract
Point-of-care testing (POCT), defined as the test performed at or near a patient, has been evolving into a complement to conventional laboratory diagnosis by continually providing portable, cost-effective, and easy-to-use measurement tools. Among them, microneedle-based POCT devices have gained increasing attention from researchers due to the glorious potential for detecting various analytes in a minimally invasive manner. More recently, a novel synergism between microneedle and wearable technologies is expanding their detection capabilities. Herein, we provide an overview on the progress in microneedle-based transdermal biosensors. It covers all the main aspects of the field, including design philosophy, material selection, and working mechanisms as well as the utility of the devices. We also discuss lessons from the past, challenges of the present, and visions for the future on translation of these state-of-the-art technologies from the bench to the bedside.
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Affiliation(s)
- Gui-Shi Liu
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, College of Science & Engineering, Jinan University, Guangzhou, 510632, China
| | - Yifei Kong
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Yensheng Wang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Yunhan Luo
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, College of Science & Engineering, Jinan University, Guangzhou, 510632, China
| | - Xudong Fan
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Xi Xie
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Bo-Ru Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou, 510006, China.
| | - Mei X Wu
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA.
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203
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Badizadegan K, Goodson JL, Rota PA, Thompson KM. The potential role of using vaccine patches to induce immunity: platform and pathways to innovation and commercialization. Expert Rev Vaccines 2020; 19:175-194. [PMID: 32182145 PMCID: PMC7814398 DOI: 10.1080/14760584.2020.1732215] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/12/2020] [Indexed: 01/14/2023]
Abstract
Introduction: In the last two decades, the evidence related to using vaccine patches with multiple short projections (≤1 mm) to deliver vaccines through the skin increased significantly and demonstrated their potential as an innovative delivery platform.Areas covered: We review the vaccine patch literature published in English as of 1 March 2019, as well as available information from key stakeholders related to vaccine patches as a platform. We identify key research topics related to basic and translational science on skin physical properties and immunobiology, patch development, and vaccine manufacturing.Expert opinion: Currently, vaccine patch developers continue to address some basic science and other platform issues in the context of developing a potential vaccine patch presentation for an existing or new vaccine. Additional clinical data and manufacturing experience could shift the balance toward incentivizing existing vaccine manufactures to further explore the use of vaccine patches to deliver their products. Incentives for innovation of vaccine patches differ for developed and developing countries, which will necessitate different strategies (e.g. public-private partnerships, push, or pull mechanisms) to support the basic and applied research needed to ensure a strong evidence base and to overcome translational barriers for vaccine patches as a delivery platform.
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Affiliation(s)
| | - James L Goodson
- Global Immunization Division, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Paul A Rota
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
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204
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Implantable powder-carrying microneedles for transdermal delivery of high-dose insulin with enhanced activity. Biomaterials 2020; 232:119733. [DOI: 10.1016/j.biomaterials.2019.119733] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/20/2019] [Accepted: 12/25/2019] [Indexed: 01/08/2023]
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205
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Development and clinical study of the use of infrared radiation to accelerate the dissolution rate of a microneedle array patch (MAP). Drug Deliv Transl Res 2020; 10:791-800. [DOI: 10.1007/s13346-020-00710-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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206
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Duong HTT, Yin Y, Thambi T, Kim BS, Jeong JH, Lee DS. Highly potent intradermal vaccination by an array of dissolving microneedle polypeptide cocktails for cancer immunotherapy. J Mater Chem B 2020; 8:1171-1181. [PMID: 31957761 DOI: 10.1039/c9tb02175b] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Despite recent advances in cancer therapy using vaccines, the efficacy of vaccine regimens remains to be improved. Cutaneous transportation of biomolecules, particularly DNA vaccines, has potentially improved the therapeutic efficacy and has been found to be an appealing approach in cancer immunotherapy. Nevertheless, the effectiveness of transdermal vaccination is limited by the lack of efficacious immune stimulation. Here, to elicit strong immunogenicity in target cells, we propose an array of dissolving microneedle cocktails for pain-free implantation and triggered release of vaccines and adjuvants at cutaneous tissues. The microneedle cocktails comprising a bioresorbable polypeptide matrix with a nanopolyplex, which include cationic amphiphilic conjugates with ovalbumin-expressing plasmid OVA (pOVA) and immunostimulant-polyinosinic:polycytidylic acid (poly(I:C)), were prepared using a one-pot synthesis. The cationic nanopolyplex effectively transported pOVA and poly(I:C) into the intracellular compartments of dendritic cells and macrophages. Cutaneous implantation of microneedle cocktails on mice elicits a stronger antigen-specific antibody response than subcutaneous administration of the microneedle-free nanopolyplex. Compared with traditional vaccination, the dissolving microneedle cocktails enhanced the antibody recall memory after challenge; remarkably, the cocktail-based therapeutic vaccination also resulted in enhanced lung clearance of cancer cells. The dissolving microneedle cocktail therapy based on the triggered release of immunomodulators and adjuvants synergistically augmented the therapeutic effect in B16/OVA melanoma tumors.
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Affiliation(s)
- Huu Thuy Trang Duong
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Yue Yin
- School of Pharmacy, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 16419, Republic of Korea. and CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Thavasyappan Thambi
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Bong Sup Kim
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Ji Hoon Jeong
- School of Pharmacy, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 16419, Republic of Korea.
| | - Doo Sung Lee
- School of Chemical Engineering, Theranostic Macromolecules Research Center, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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207
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Khan S, Minhas MU, Tekko IA, Donnelly RF, Thakur RRS. Evaluation of microneedles-assisted in situ depot forming poloxamer gels for sustained transdermal drug delivery. Drug Deliv Transl Res 2020; 9:764-782. [PMID: 30675693 PMCID: PMC6606675 DOI: 10.1007/s13346-019-00617-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this study, for the first time, we have reported a sustained transdermal drug delivery from thermoresponsive poloxamer depots formed within the skin micropores following microneedle (MN) application. Firstly, we have investigated the sol–gel phase transition characteristics of poloxamers (PF®127, P108, and P87) at physiological conditions. Rheological measurements were evaluated to confirm the critical gelation temperature (CGT) of the poloxamer formulations with or without fluorescein sodium (FS), as a model drug, at various concentrations. Optimized poloxamer formulations were subjected to in vitro release studies using a vial method. Secondly, polymeric MNs were fabricated using laser-engineered silicone micromolds from various biocompatible polymeric blends of Gantrez S-97, PEG 10000, PEG200, PVP K32, and PVP K90. The MN arrays were characterized for mechanical strength, insertion force determination, in situ dissolution kinetics, moisture content, and penetration depth. The optimized MN arrays with good mechanical strength and non-soluble nature were used to create micropores in the neonatal porcine skin. Microporation in neonatal porcine skin was confirmed by dye-binding study, skin integrity assessment, and histology study. Finally, the in vitro delivery of FS from optimized poloxamer formulations was conducted across non-porated vs microporated skin samples using vertical Franz diffusion cells. Results concluded that permeation of FS was sustained for 96 h across the MN-treated skin samples containing in situ forming depot poloxamer formulations compared to non-microporated skin which sustained the FS delivery for 72 h. Confocal microscopic images confirmed the distribution of higher florescence intensity of FS in skin tissues after permeation study in case of MN-treated skin samples vs intact skin samples.
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Affiliation(s)
- Samiullah Khan
- Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Punjab, 63100, Pakistan
| | - Muhammad Usman Minhas
- Faculty of Pharmacy and Alternative Medicine, The Islamia University of Bahawalpur, Bahawalpur, Punjab, 63100, Pakistan
| | - Ismaiel A Tekko
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Raghu Raj Singh Thakur
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK.
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208
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Chen Y, Yang Y, Xian Y, Singh P, Feng J, Cui S, Carrier A, Oakes K, Luan T, Zhang X. Multifunctional Graphene-Oxide-Reinforced Dissolvable Polymeric Microneedles for Transdermal Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2020; 12:352-360. [PMID: 31825580 DOI: 10.1021/acsami.9b19518] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Dissolvable polymeric microneedles (DPMNs) are promising transdermal drug delivery systems with minimal invasiveness and improved patient compliance. Incorporation of a small amount of graphene oxide (GO) in the biocompatible polymers for microneedle fabrication results in important new DPMN properties, that is, dramatically enhanced mechanic strength (10-17 times at 500 mg/mL GO), improved moisture resistance, self-sterilization, antibacterial and anti-inflammatory properties (demonstrated in vitro), and near-infrared light-activated controlled drug release (demonstrated in vitro and in vivo), which were exploited for the transdermal delivery of the chemotherapeutic, HA15, to melanoma-bearing mouse models. These new properties improve their efficacy of transdermal drug delivery and ease of use, enhance their capability of controlled drug release, enlarge the scope of the polymers that can be used for DPMN fabrication, prevent microbial contamination during storage and transportation, and reduce infection risk in clinical applications.
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Affiliation(s)
- Yongli Chen
- MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences , Sun Yat-sen University , Guangzhou 510275 , China
| | - Yikun Yang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital , Chinese Academy of Medical Sciences and Peking Union Medical College , Shenzhen 518116 , China
| | | | - Parbeen Singh
- MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences , Sun Yat-sen University , Guangzhou 510275 , China
| | | | | | | | | | - Tiangang Luan
- MOE Key Laboratory of Aquatic Product Safety, School of Marine Sciences , Sun Yat-sen University , Guangzhou 510275 , China
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209
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Vitamin K as a Diet Supplement with Impact in Human Health: Current Evidence in Age-Related Diseases. Nutrients 2020; 12:nu12010138. [PMID: 31947821 PMCID: PMC7019739 DOI: 10.3390/nu12010138] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/24/2019] [Accepted: 12/31/2019] [Indexed: 12/12/2022] Open
Abstract
Vitamin K health benefits have been recently widely shown to extend beyond blood homeostasis and implicated in chronic low-grade inflammatory diseases such as cardiovascular disease, osteoarthritis, dementia, cognitive impairment, mobility disability, and frailty. Novel and more efficient nutritional and therapeutic options are urgently needed to lower the burden and the associated health care costs of these age-related diseases. Naturally occurring vitamin K comprise the phylloquinone (vitamin K1), and a series of menaquinones broadly designated as vitamin K2 that differ in source, absorption rates, tissue distribution, bioavailability, and target activity. Although vitamin K1 and K2 sources are mainly dietary, consumer preference for diet supplements is growing, especially when derived from marine resources. The aim of this review is to update the reader regarding the specific contribution and effect of each K1 and K2 vitamers in human health, identify potential methods for its sustainable and cost-efficient production, and novel natural sources of vitamin K and formulations to improve absorption and bioavailability. This new information will contribute to foster the use of vitamin K as a health-promoting supplement, which meets the increasing consumer demand. Simultaneously, relevant information on the clinical context and direct health consequences of vitamin K deficiency focusing in aging and age-related diseases will be discussed.
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210
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Lopez-Ramirez MA, Soto F, Wang C, Rueda R, Shukla S, Silva-Lopez C, Kupor D, McBride DA, Pokorski JK, Nourhani A, Steinmetz NF, Shah NJ, Wang J. Built-In Active Microneedle Patch with Enhanced Autonomous Drug Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905740. [PMID: 31682039 PMCID: PMC7014935 DOI: 10.1002/adma.201905740] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/09/2019] [Indexed: 05/08/2023]
Abstract
The use of microneedles has facilitated the painless localized delivery of drugs across the skin. However, their efficacy has been limited by slow diffusion of molecules and often requires external triggers. Herein, an autonomous and degradable, active microneedle delivery platform is introduced, employing magnesium microparticles loaded within the microneedle patch, as the built-in engine for deeper and faster intradermal payload delivery. The magnesium particles react with the interstitial fluid, leading to an explosive-like rapid production of H2 bubbles, providing the necessary force to breach dermal barriers and enhance payload delivery. The release kinetics of active microneedles is evaluated in vitro by measuring the amount of IgG antibody (as a model drug) that passed through phantom tissue and a pigskin barrier. In vivo experiments using a B16F10 mouse melanoma model demonstrate that the active delivery of anti-CTLA-4 (a checkpoint inhibitor drug) results in greatly enhanced immune response and significantly longer survival. Moreover, spatially resolved zones of active and passive microneedles allow a combinatorial rapid burst response along with slow, sustained release, respectively. Such versatile and effective autonomous dynamic microneedle delivery technology offers considerable promise for a wide range of therapeutic applications, toward a greatly enhanced outcome, convenience, and cost.
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Affiliation(s)
| | - Fernando Soto
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Chao Wang
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Ricardo Rueda
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Sourabh Shukla
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Cristian Silva-Lopez
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Daniel Kupor
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - David A McBride
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
- Chemical Engineering Program, University of California San Diego, La Jolla, San Diego, CA, 92093, USA
| | - Jonathan K Pokorski
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
- Center for Nano-Immunoengineering, University of California San Diego, La Jolla, San Diego, CA, 92093, USA
| | - Amir Nourhani
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Nicole F Steinmetz
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
- Center for Nano-Immunoengineering, University of California San Diego, La Jolla, San Diego, CA, 92093, USA
- Department of Radiology, University of California, San Diego, La Jolla, San Diego, CA, 92093, USA
- Department of Bioengineering, University of California, San Diego, La Jolla, San Diego, CA, 92093, USA
| | - Nisarg J Shah
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
- Chemical Engineering Program, University of California San Diego, La Jolla, San Diego, CA, 92093, USA
- Center for Nano-Immunoengineering, University of California San Diego, La Jolla, San Diego, CA, 92093, USA
- Program in Immunology, University of California San Diego, La Jolla, San Diego, CA, 92093, USA
| | - Joseph Wang
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
- Center for Nano-Immunoengineering, University of California San Diego, La Jolla, San Diego, CA, 92093, USA
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211
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Zhang X, Wang Y, Chi J, Zhao Y. Smart Microneedles for Therapy and Diagnosis. RESEARCH (WASHINGTON, D.C.) 2020; 2020:7462915. [PMID: 33623910 PMCID: PMC7877383 DOI: 10.34133/2020/7462915] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/26/2020] [Indexed: 01/26/2023]
Abstract
Microneedles represent a cutting-edge and idea-inspiring technology in biomedical engineering, which have attracted increasing attention of scientific researchers and medical staffs. Over the past decades, numerous great achievements have been made. The fabrication process of microneedles has been simplified and becomes more precise, easy-to-operate, and reusable. Besides, microneedles with various features have been developed and the microneedle materials have greatly expanded. In recent years, efforts have been focused on generating smart microneedles by endowing them with intriguing functions such as adhesion ability, responsiveness, and controllable drug release. Such improvements enable the microneedles to take an important step in practical applications including household drug delivery devices, wearable biosensors, biomedical assays, cell culture, and microfluidic chip analysis. In this review, the fabrication strategies, distinctive properties, and typical applications of the smart microneedles are discussed. Recent accomplishments, remaining challenges, and future prospects are also presented.
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Affiliation(s)
- Xiaoxuan Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Yuetong Wang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Junjie Chi
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yuanjin Zhao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
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212
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Qu M, Kim HJ, Zhou X, Wang C, Jiang X, Zhu J, Xue Y, Tebon P, Sarabi SA, Ahadian S, Dokmeci MR, Zhu S, Gu Z, Sun W, Khademhosseini A. Biodegradable microneedle patch for transdermal gene delivery. NANOSCALE 2020; 12:16724-16729. [DOI: 10.1039/d0nr02759f] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A gelatin methacryloyl based microneedle patch has been developed for transdermal gene delivery both in vitro and in vivo.
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213
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214
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Wang M, Han Y, Yu X, Liang L, Chang H, Yeo DC, Wiraja C, Wee ML, Liu L, Liu X, Xu C. Upconversion Nanoparticle Powered Microneedle Patches for Transdermal Delivery of siRNA. Adv Healthc Mater 2020; 9:e1900635. [PMID: 31788987 DOI: 10.1002/adhm.201900635] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 10/31/2019] [Indexed: 11/10/2022]
Abstract
Microneedles (MNs) permit the delivery of nucleic acids like small interfering RNA (siRNA) through the stratum corneum and subsequently into the skin tissue. However, skin penetration is only the first step in successful implementation of siRNA therapy. These delivered siRNAs need to be resistant to enzymatic degradation, enter target cells, and escape the endosome-lysosome degradation axis. To address this challenge, this article introduces a nanoparticle-embedding MN system that contains a dissolvable hyaluronic acid (HA) matrix and mesoporous silica-coated upconversion nanoparticles (UCNPs@mSiO2 ). The mesoporous silica (mSiO2 ) shell is used to load and protect siRNA while the upconversion nanoparticle (UCNP) core allows the tracking of MN skin penetration and NP diffusion through upconversion luminescence imaging or optical coherence tomography (OCT) imaging. Once inserted into the skin, the HA matrix dissolves and UCNPs@mSiO2 diffuse in the skin tissue before entering the cells for delivering the loaded genes. As a proof of concept, this system is used to deliver molecular beacons (MBs) and siRNA targeting transforming growth factor-beta type I receptor (TGF-βRI) that is potentially used for abnormal scar treatment.
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Affiliation(s)
- Min Wang
- School of Chemical and Biomedical EngineeringNanyang Technological University 70 Nanyang Drive Singapore 637457 Singapore
- School of Pharmaceutical SciencesChongqing University Chongqing 401331 China
| | - Yiyuan Han
- School of Chemical and Biomedical EngineeringNanyang Technological University 70 Nanyang Drive Singapore 637457 Singapore
| | - Xiaojun Yu
- School of Electrical and Electronic EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
- School of AutomationNorthwestern Polytechnical University Xi'an Shaanxi 710027 China
| | - Liangliang Liang
- Department of ChemistryNational University of Singapore 3 Science Drive Singapore 117543 Singapore
| | - Hao Chang
- School of Chemical and Biomedical EngineeringNanyang Technological University 70 Nanyang Drive Singapore 637457 Singapore
| | - David C. Yeo
- Singapore Institute of Manufacturing Technology (SIMTech)Agency for Science, Technology and Research (A*STAR) 2 Fusionopolis Way, #08‐04, Innovis Singapore 138634 Singapore
| | - Christian Wiraja
- School of Chemical and Biomedical EngineeringNanyang Technological University 70 Nanyang Drive Singapore 637457 Singapore
| | - Mei Ling Wee
- School of Biological SciencesNanyang Technological University 60 Nanyang Drive Singapore 637551 Singapore
| | - Linbo Liu
- School of Electrical and Electronic EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Xiaogang Liu
- Department of ChemistryNational University of Singapore 3 Science Drive Singapore 117543 Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical EngineeringNanyang Technological University 70 Nanyang Drive Singapore 637457 Singapore
- National Dental Centre of Singapore 5 Second Hospital Avenue Singapore 168938 Singapore
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215
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Kathuria H, Kang K, Cai J, Kang L. Rapid microneedle fabrication by heating and photolithography. Int J Pharm 2019; 575:118992. [PMID: 31884060 DOI: 10.1016/j.ijpharm.2019.118992] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/07/2019] [Accepted: 12/22/2019] [Indexed: 10/25/2022]
Abstract
Many fabrication methods for microneedle (MN) involve harsh conditions and long drying time. This study aims to fabricate a dissolving MN patch in a simple and efficient manner under mild conditions, using a combination of thermal and photo polymerisation. The MN patch was fabricated by pre-polymerisation of vinylpyrrolidone solution with heating followed by photolithography. The heating temperature and time of pre-polymer solution curing were optimized based on viscosity measurement. The MN properties including shape, size, skin penetration, dissolution, moisture absorption were determined. The fabricated MNs were sharp and consistent. The heated N-vinylpyrrolidone solution required less UV exposure time, thus reducing the total fabrication time. The percentage of MN penetration in human cadaver skin was more than 33.9%. The MN was dissolved within 1-2 min in water, or 40 min in saturated water vapor.
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Affiliation(s)
- Himanshu Kathuria
- Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Kristacia Kang
- Department of Pharmacy, National University of Singapore, Singapore 117543, Singapore
| | - Junyu Cai
- China State Institute of Pharmaceutical Industry, Shanghai 201203, China; School of Pharmacy, University of Sydney, Sydney, NSW 2006, Australia
| | - Lifeng Kang
- School of Pharmacy, University of Sydney, Sydney, NSW 2006, Australia.
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Abstract
Under many circumstances, prophylactic immunizations are considered as the only possible strategy to control infectious diseases. Considerable efforts are typically invested in immunogen selection but, erroneously, the route of administration is not usually a major concern despite the fact that it can strongly influence efficacy. The skin is now considered a key component of the lymphatic system with tremendous potential as a target for vaccination. The purpose of this review is to present the immunological basis of the skin-associated lymphoid tissue, so as to provide understanding of the skin vaccination strategies. Several strategies are currently being developed for the transcutaneous delivery of antigens. The classical, mechanical or chemical disruptions versus the newest approaches based on microneedles for antigen delivery through the skin are discussed herein.
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217
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Yao W, Li D, Zhao Y, Zhan Z, Jin G, Liang H, Yang R. 3D Printed Multi-Functional Hydrogel Microneedles Based on High-Precision Digital Light Processing. MICROMACHINES 2019; 11:E17. [PMID: 31877987 PMCID: PMC7019295 DOI: 10.3390/mi11010017] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/26/2019] [Accepted: 12/19/2019] [Indexed: 11/16/2022]
Abstract
Traditional injection and extraction devices often appear painful and cumbersome for patients. In recent years, polymer microneedles (MNs) have become a novel tool in the field of clinical medicine and health. However, the cost of building MNs into any shapes still remains a challenge. In this paper, we proposed hydrogel microneedles fabricated by high-precision digital light processing (H-P DLP) 3D printing system. Benefits from the sharp protuberance and micro-porous of the hydrogel microneedle, the microneedle performed multifunctional tasks such as drug delivery and detection with minimally invasion. Critical parameters for the fabrication process were analyzed, and the mechanical properties of MNs were measured to find a balance between precision and stiffness. Results shows that the stiffness and precision were significantly influenced by exposure time of each layer, and optimized printing parameters provided a balance between precision and stiffness. Bio-compatible MNs based on our H-P DLP system was able to execute drug injection and drug detection in our experiments. This work provided a low-cost and fast method to build MNs with 3D building, qualified the mechanical performance, drug injection, drug detection ability of MNs, and may be helpful for the potential clinical application.
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Affiliation(s)
- Wei Yao
- Department of Biomedical Engineering, Anhui Medical University and Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, China; (W.Y.); (D.L.)
| | - Didi Li
- Department of Biomedical Engineering, Anhui Medical University and Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, China; (W.Y.); (D.L.)
| | - Yuliang Zhao
- School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China;
| | - Zhikun Zhan
- Key Lab of Industrial Computer Control Engineering of Hebei Province, School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China;
| | - Guoqing Jin
- Robotics and Microsystems Center, School of Mechanical and Electric Engineering, Soochow University, Suzhou 215021, China;
| | - Haiyi Liang
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China;
- IAT-Chungu Joint Laboratory for Additive Manufacturing, Anhui Chungu 3D printing Institute of Intelligent Equipment and Industrial Technology, Wuhu 241200, China
| | - Runhuai Yang
- Department of Biomedical Engineering, Anhui Medical University and Research and Engineering Center of Biomedical Materials, Anhui Medical University, Hefei 230032, China; (W.Y.); (D.L.)
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218
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Li Z, He Y, Deng L, Zhang ZR, Lin Y. A fast-dissolving microneedle array loaded with chitosan nanoparticles to evoke systemic immune responses in mice. J Mater Chem B 2019; 8:216-225. [PMID: 31803892 DOI: 10.1039/c9tb02061f] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microneedle (MN) arrays offer an alternative approach to hypodermic injection via syringe needles. In this work, polyvinylpyrrolidone (PVP)-based fast dissolving MN arrays were developed in which the needle tips were loaded with chitosan nanoparticles (NPs) for coencapsulation of a model antigen, ovalbumin (OVA), and an adjuvant, CpG oligodeoxynucleotides (CpG). After insertion into the skin, these MN arrays fully dissolved within 3 min to release antigen and adjuvant co-loaded NPs rapidly in the epidermal layer. Positively charged chitosan was proven to be an excellent carrier for negatively charged OVA and CpG, which formed nanocomplexes via simple electrostatic interactions and greatly enhanced the uptake efficiency of OVA in DC2.4 dendritic cells. Vaccination studies in mice further demonstrated that chitosan NPs effectively accumulated in peripheral lymph nodes, thus inducing greatly enhanced immune responses compared to those of free OVA. The antibody dose-response curve further demonstrated that MN immunization achieved comparable levels of immune responses as compared to conventional subcutaneous injections in a more convenient and less invasive way. Overall, a PVP-based fast dissolving MN array with chitosan NPs represents a promising and robust platform system for efficient transcutaneous vaccine delivery.
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Affiliation(s)
- Zhilin Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Yingju He
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Li Deng
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Zhi-Rong Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
| | - Yunzhu Lin
- Department of Pharmacy, West China Second University Hospital and Evidence-Based Pharmacy Center and Key Laboratory of Birth Defects and Related Diseases of Woman and Children, Sichuan University, Chengdu 610041, China
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219
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Yin M, Xiao L, Liu Q, Kwon SY, Zhang Y, Sharma PR, Jin L, Li X, Xu B. 3D Printed Microheater Sensor-Integrated, Drug-Encapsulated Microneedle Patch System for Pain Management. Adv Healthc Mater 2019; 8:e1901170. [PMID: 31664794 PMCID: PMC6918473 DOI: 10.1002/adhm.201901170] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Indexed: 02/04/2023]
Abstract
Microneedle patch devices have been widely utilized for transdermal drug delivery in pain management, but is challenged by accurate control of drug release and subsequent diffusion to human body. The recent emerging wearable electronics that could be integrated with microneedle devices offer a facile approach to address such a challenge. Here a 3D-printed microheater integrated drug-encapsulated microneedle patch system for drug delivery is presented. The ink solution comprised polydimethylsiloxane (PDMS) and multiwalled carbon nanotubes (MWCNTs) with a mass concentration of up to 45% (≈10 times higher of existing ones) is prepared and used to print crack-free stretchable microheaters on substrates with a broad range of materials and geometric curves. The adhesion strength of the printed microheater on the microneedle patch in elevated temperatures is measured to evaluate their integration performance. Assessments of encapsulated drug release into rat's skin are confirmed by examining degradation of microneedles, skin morphologies, and released fluorescent signals. Results and demonstrations established here creates a new opportunity for developing sensor controlled smart microneedle patch systems by integrating with wearable electronics, potentially useful in clinical and biomedical research.
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Affiliation(s)
- Mengtian Yin
- Department of Mechanical and Aerospace Engineering, University of Virginia, PO Box 400746 122 Engineer's Way, Charlottesville, VA, 22904, USA
| | - Li Xiao
- Department of Orthopedic Surgery, University of Virginia, 135 Hospital Drive, Charlottesville, VA, 22908, USA
| | - Qingchang Liu
- Department of Mechanical and Aerospace Engineering, University of Virginia, PO Box 400746 122 Engineer's Way, Charlottesville, VA, 22904, USA
| | - Sung-Yun Kwon
- Theraject, Inc., 39270 Paseo Padre #112, Fremont, CA, 94538, USA
| | - Yi Zhang
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 116 N. Robertson Blvd, Pacific Theatres Building, Suite 400, Los Angeles, CA, 90048, USA
| | - Poonam R Sharma
- Department of Biomedical Engineering, University of Virginia, 135 Hospital Drive, Charlottesville, VA, 22908, USA
| | - Li Jin
- Department of Orthopedic Surgery, University of Virginia, 135 Hospital Drive, Charlottesville, VA, 22908, USA
| | - Xudong Li
- Department of Orthopedic Surgery, University of Virginia, 135 Hospital Drive, Charlottesville, VA, 22908, USA
- Department of Biomedical Engineering, University of Virginia, 135 Hospital Drive, Charlottesville, VA, 22908, USA
| | - Baoxing Xu
- Department of Mechanical and Aerospace Engineering, University of Virginia, PO Box 400746 122 Engineer's Way, Charlottesville, VA, 22904, USA
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220
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Guo T, Cheng N, Zhao J, Hou X, Zhang Y, Feng N. Novel nanostructured lipid carriers-loaded dissolving microneedles for controlled local administration of aconitine. Int J Pharm 2019; 572:118741. [DOI: 10.1016/j.ijpharm.2019.118741] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 09/13/2019] [Accepted: 09/25/2019] [Indexed: 12/22/2022]
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221
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Singh P, Carrier A, Chen Y, Lin S, Wang J, Cui S, Zhang X. Polymeric microneedles for controlled transdermal drug delivery. J Control Release 2019; 315:97-113. [DOI: 10.1016/j.jconrel.2019.10.022] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/09/2019] [Accepted: 10/12/2019] [Indexed: 01/03/2023]
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222
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Uppu DSSM, Turvey ME, Sharif ARM, Bidet K, He Y, Ho V, Tambe AD, Lescar J, Tan EY, Fink K, Chen J, Hammond PT. Temporal release of a three-component protein subunit vaccine from polymer multilayers. J Control Release 2019; 317:130-141. [PMID: 31756392 DOI: 10.1016/j.jconrel.2019.11.022] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 10/14/2019] [Accepted: 11/18/2019] [Indexed: 12/11/2022]
Abstract
Sustained antigen and adjuvant availability have been shown to improve antiviral immune responses following vaccination. Transcutaneous delivery of vaccines using microneedles has also shown promise and may be particularly relevant for mosquito-borne viruses. We aim to combine these traits to create a three-component Protein Subunit vaccine on Microneedle Arrays (PSMNs) for transcutaneous delivery using layer-by-layer (LbL) assembly. Polymer multilayer thin films were generated to co-deliver a model combination of three chemically distinct vaccine components, a dengue virus Envelope protein Domain III (EDIII) subunit antigen and two adjuvants, a double-stranded RNA (Poly (inosinic:cytidylic acid) (PolyI:C)) and an amphiphilic hexapeptide, Pam3CSK4. Following application of PSMNs to the skin, implanted thin films facilitated sustained and temporal release of individual vaccine components from polymer multilayers. By modulating LbL composition and architecture, component release profiles in the skin could be independently tuned to allow release of adjuvants and antigen from days up to two weeks. Uptake of antigen and adjuvant from implanted vaccine films by antigen-presenting cells was demonstrated using in vivo mouse and ex vivo human skin models. Overall, we believe that such modular vaccine strategies offer design principles for enhancing the immunogenicity of protein subunit vaccines.
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Affiliation(s)
- Divakara S S M Uppu
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research and Technology, Singapore
| | - Michelle E Turvey
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research and Technology, Singapore
| | - Abdul Rahim Mohammed Sharif
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research and Technology, Singapore
| | - Katell Bidet
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research and Technology, Singapore
| | - Yanpu He
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Victor Ho
- Singapore Immunology Network, Agency for Science Technology and Research, Singapore
| | - Anagha D Tambe
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research and Technology, Singapore
| | - Julien Lescar
- School of Biological Sciences, Nanyang Technology University, Singapore
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore
| | - Katja Fink
- Singapore Immunology Network, Agency for Science Technology and Research, Singapore
| | - Jianzhu Chen
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research and Technology, Singapore; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Paula T Hammond
- Interdisciplinary Research Group in Infectious Diseases, Singapore-MIT Alliance for Research and Technology, Singapore; Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA; Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
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223
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Balmert SC, Carey CD, Falo GD, Sethi SK, Erdos G, Korkmaz E, Falo LD. Dissolving undercut microneedle arrays for multicomponent cutaneous vaccination. J Control Release 2019; 317:336-346. [PMID: 31756393 DOI: 10.1016/j.jconrel.2019.11.023] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/08/2019] [Accepted: 11/18/2019] [Indexed: 01/21/2023]
Abstract
The skin is an attractive tissue target for vaccination, as it is readily accessible and contains a dense population of antigen-presenting and immune-accessory cells. Microneedle arrays (MNAs) are emerging as an effective tool for in situ engineering of the cutaneous microenvironment to enable diverse immunization strategies. Here, we present novel dissolving undercut MNAs and demonstrate their application for effective multicomponent cutaneous vaccination. The MNAs are composed of micron-scale needles featuring pyramidal heads supported by undercut stem regions with filleted bases to ensure successful skin penetration and retention during application. Prior efforts to fabricate dissolving undercut microstructures were limited and required complex and lengthy processing and assembly steps. In the current study, we strategically combine three-dimensional (3D) laser lithography, an emerging micro-additive manufacturing method with unique geometric capabilities and nanoscale resolution, and micromolding with favorable materials. This approach enables reproducible production of dissolving MNAs with undercut microneedles that can be tip-loaded with multiple biocargos, such as antigen (ovalbumin) and adjuvant (Poly(I:C)). The resulting MNAs fulfill the geometric (sharp tips and smooth edges) and mechanical-strength requirements for failure-free penetration of human and murine skin to simultaneously deliver multicomponent (antigen plus adjuvant) vaccines to the same cutaneous microenvironment. Cutaneous vaccination of mice using these MNAs induces more potent antigen-specific cellular and humoral immune responses than those elicited by traditional intramuscular injection. Together, the unique geometric features of these undercut MNAs and the associated manufacturing strategy, which is compatible with diverse drugs and biologics, could enable a broad range of non-cutaneous and cutaneous drug delivery applications, including multicomponent vaccination.
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Affiliation(s)
- Stephen C Balmert
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, United States
| | - Cara Donahue Carey
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, United States
| | - Gabriel D Falo
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, United States
| | - Shiv K Sethi
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, United States
| | - Geza Erdos
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, United States
| | - Emrullah Korkmaz
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, United States.
| | - Louis D Falo
- Department of Dermatology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, United States; Department of Bioengineering, University of Pittsburgh Swanson School of Engineering, Pittsburgh, PA 15261, United States; Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA 15213, United States; UPMC Hillman Cancer Center, Pittsburgh, PA 15232, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, United States.
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224
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Pires LR, Vinayakumar KB, Turos M, Miguel V, Gaspar J. A Perspective on Microneedle-Based Drug Delivery and Diagnostics in Paediatrics. J Pers Med 2019; 9:jpm9040049. [PMID: 31731656 PMCID: PMC6963643 DOI: 10.3390/jpm9040049] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/04/2019] [Accepted: 11/12/2019] [Indexed: 12/24/2022] Open
Abstract
Microneedles (MNs) have been extensively explored in the literature as a means to deliver drugs in the skin, surpassing the stratum corneum permeability barrier. MNs are potentially easy to produce and may allow the self-administration of drugs without causing pain or bleeding. More recently, MNs have been investigated to collect/assess the interstitial fluid in order to monitor or detect specific biomarkers. The integration of these two concepts in closed-loop devices holds the promise of automated and minimally invasive disease detection/monitoring and therapy. These assure low invasiveness and, importantly, open a window of opportunity for the application of population-specific and personalised therapies.
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Affiliation(s)
- Liliana R Pires
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (L.R.P.); (J.G.)
| | - KB Vinayakumar
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (L.R.P.); (J.G.)
- Correspondence: or
| | - Maria Turos
- University of Oviedo, 33006 Asturias, Spain;
| | - Verónica Miguel
- Department of Cell Biology and Immunology, Centro de Biología Molecular “Severo Ochoa”, 28049 Madrid, Spain;
| | - João Gaspar
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (L.R.P.); (J.G.)
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225
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Battisti M, Vecchione R, Casale C, Pennacchio FA, Lettera V, Jamaledin R, Profeta M, Di Natale C, Imparato G, Urciuolo F, Netti PA. Non-invasive Production of Multi-Compartmental Biodegradable Polymer Microneedles for Controlled Intradermal Drug Release of Labile Molecules. Front Bioeng Biotechnol 2019; 7:296. [PMID: 31781550 PMCID: PMC6856554 DOI: 10.3389/fbioe.2019.00296] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/14/2019] [Indexed: 12/31/2022] Open
Abstract
Transdermal drug delivery represents an appealing alternative to conventional drug administration systems. In fact, due to their high patient compliance, the development of dissolvable and biodegradable polymer microneedles has recently attracted great attention. Although stamp-based procedures guarantee high tip resolution and reproducibility, they have long processing times, low levels of system engineering, are a source of possible contaminants, and thermo-sensitive drugs cannot be used in conjunction with them. In this work, a novel stamp-based microneedle fabrication method is proposed. It provides a rapid room-temperature production of multi-compartmental biodegradable polymeric microneedles for controlled intradermal drug release. Solvent casting was carried out for only a few minutes and produced a short dissolvable tip made of polyvinylpyrrolidone (PVP). The rest of the stamp was then filled with degradable poly(lactide-co-glycolide) (PLGA) microparticles (μPs) quickly compacted with a vapor-assisted plasticization. The outcome was an array of microneedles with tunable release. The ability of the resulting microneedles to indent was assessed using pig cadaver skin. Controlled intradermal delivery was demonstrated by loading both the tip and the body of the microneedles with model therapeutics; POXA1b laccase from Pleurotus ostreatus is a commercial enzyme used for the whitening of skin spots. The action and indentation of the enzyme-loaded microneedle action were assessed in an in vitro skin model and this highlighted their ability to control the kinetic release of the encapsulated compound.
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Affiliation(s)
- Mario Battisti
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
| | - Raffaele Vecchione
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
| | - Costantino Casale
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Naples, Italy
| | - Fabrizio A. Pennacchio
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
| | | | - Rezvan Jamaledin
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
| | - Martina Profeta
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
| | - Concetta Di Natale
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
| | - Giorgia Imparato
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
| | - Francesco Urciuolo
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Naples, Italy
- Department of Chemical Materials and Industrial Production (DICMAPI), University of Naples Federico II, Naples, Italy
| | - Paolo Antonio Netti
- Center for Advanced Biomaterials for Health Care (CABHC), Istituto Italiano di Tecnologia, Naples, Italy
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Naples, Italy
- Department of Chemical Materials and Industrial Production (DICMAPI), University of Naples Federico II, Naples, Italy
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226
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Zhang F, Bao W, Li R, Zhao S, Liu Y, Xu Y, Liao L, Wang X. Microneedles combined with a sticky and heatable hydrogel for local painless anesthesia. Biomater Sci 2019; 7:4503-4507. [PMID: 31596283 DOI: 10.1039/c9bm00482c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In view of the inherent defects of traditional syringe anesthesia (pain, inaccurate anesthesia area, swelling after injection, slow recovery etc.), this article proposed a new anesthesia system based on microneedles and a hydrogel. After loading with AuNPs, a sticky PDA-PAM-AuNP hydrogel with near-infrared (NIR) light response properties was prepared here. After using microneedles (to open the skin of the target anesthesia area), a hydrogel patch embedded with a medical anesthetic soaked sponge was pasted to realize local painless anesthesia. The effects of anesthesia can also be modulated by external NIR. Compared to traditional syringe anesthesia, this hydrogel + microneedle method resulted in reduced pain, higher anesthetic accuracy and faster recovery, making it a promising local anesthesia alternative in clinical applications.
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Affiliation(s)
- Feng Zhang
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
| | - Weiwei Bao
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
| | - Ruirui Li
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
| | - Siyu Zhao
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
| | - Yuxiao Liu
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
| | - Yingying Xu
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
| | - Lan Liao
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
| | - Xiaolei Wang
- The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, Jiangxi 330006, P.R. China. and College of Chemistry, Nanchang University, Nanchang, Jiangxi 330088, China and The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330088, P.R. China.
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227
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Chang L, Wang YC, Ershad F, Yang R, Yu C, Fan Y. Wearable Devices for Single-Cell Sensing and Transfection. Trends Biotechnol 2019; 37:1175-1188. [DOI: 10.1016/j.tibtech.2019.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/31/2019] [Accepted: 04/02/2019] [Indexed: 02/01/2023]
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228
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Lahiji SF, Um DJ, Kim Y, Jang J, Yang H, Jung H. Scalp Micro-Pigmentation via Transcutaneous Implantation of Flexible Tissue Interlocking Biodegradable Microneedles. Pharmaceutics 2019; 11:pharmaceutics11110549. [PMID: 31652807 PMCID: PMC6920983 DOI: 10.3390/pharmaceutics11110549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 12/30/2022] Open
Abstract
Alopecia, characterized by hair follicle blockage and hair loss, disrupts the normal cycle of hair growth. Although not a life-threatening condition, a growing body of evidence suggests that the psychological state of individuals experiencing alopecia can be highly influenced. Despite considerable research on hair loss treatment, interest in micro-pigmentation has increased in recent decades. Micro-pigmentation is an effective method to camouflage the visual contrast between the scalp and hair strands. However, the localization, intensity and dimension of microdots depend highly upon the physician performing the implantation. Incorrectly localized microdots within the skin may lead to patchy or faded micro-pigmentation. To overcome the limitations of conventional micro-pigmentation, we aimed to develop micro-pigment-encapsulated biodegradable microneedles (PBMs), capable of accurately implanting pigments below the epithelial-dermal junction of the scalp in a minimally invasive manner. A tissue interlocking microneedle technique was utilized to fabricate double-layered PBMs over a biodegradable flexible sheet, which could be washed off post-implantation. We confirmed that the intensity, dimension and insertion depth of 1000 μm-long PBMs was maintained on pig cadaver skin over time. This study suggested that the developed PBMs would serve as an attractive platform for scalp micro-pigmentation in the future.
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Affiliation(s)
- Shayan Fakhraei Lahiji
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.
| | - Daniel Junmin Um
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.
| | - Youseong Kim
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.
| | - Jeesu Jang
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.
| | - Huisuk Yang
- Juvic Biotech, Inc., No. 208, Digital-ro 272, Guro-gu, Seoul, 08389, Korea.
| | - Hyungil Jung
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea.
- Juvic Biotech, Inc., No. 208, Digital-ro 272, Guro-gu, Seoul, 08389, Korea.
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229
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Tejavibulya N, Colburn DAM, Marcogliese FA, Yang KA, Guo V, Chowdhury S, Stojanovic MN, Sia SK. Hydrogel Microfilaments toward Intradermal Health Monitoring. iScience 2019; 21:328-340. [PMID: 31698247 PMCID: PMC6889782 DOI: 10.1016/j.isci.2019.10.036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 10/03/2019] [Accepted: 10/18/2019] [Indexed: 10/25/2022] Open
Abstract
Digital health promises a paradigm shift for medicine where biomarkers in individuals are continuously monitored to improve diagnosis and treatment of disease. To that end, a technology for minimally invasive quantification of endogenous analytes in bodily fluids will be required. Here, we describe a strategy for designing and fabricating hydrogel microfilaments that can penetrate the skin while allowing for optical fluorescence sensing. The polyacrylamide formulation was selected to provide high elastic modulus in the dehydrated state and optical transparency in the hydrated state. The microfilaments can be covalently tethered to a fluorescent aptamer to enable functional sensing. The microfilament array can penetrate the skin with low pain and without breaking, contact the dermal interstitial fluid, and be easily removed from the skin. In the future, hydrogel microfilaments could be integrated with a wearable fluorometer to serve as a platform for continuous, minimally invasive monitoring of intradermal biomarkers.
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Affiliation(s)
- Nalin Tejavibulya
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - David A M Colburn
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Francis A Marcogliese
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Kyung-Ae Yang
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Vincent Guo
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Shilpika Chowdhury
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Milan N Stojanovic
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA; Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY 10032, USA
| | - Samuel K Sia
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA.
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230
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Mandal A, Boopathy AV, Lam LKW, Moynihan KD, Welch ME, Bennett NR, Turvey ME, Thai N, Van JH, Love JC, Hammond PT, Irvine DJ. Cell and fluid sampling microneedle patches for monitoring skin-resident immunity. Sci Transl Med 2019; 10:10/467/eaar2227. [PMID: 30429353 DOI: 10.1126/scitranslmed.aar2227] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 04/24/2018] [Accepted: 10/15/2018] [Indexed: 12/18/2022]
Abstract
Important cell populations reside within tissues and are not accessed by traditional blood draws used to monitor the immune system. To address this issue at an essential barrier tissue, the skin, we created a microneedle-based technology for longitudinal sampling of cells and interstitial fluid, enabling minimally invasive parallel monitoring of immune responses. Solid microneedle projections were coated by a cross-linked biocompatible polymer, which swells upon skin insertion, forming a porous matrix for local leukocyte infiltration. By embedding molecular adjuvants and specific antigens encapsulated in nanocapsules within the hydrogel coating, antigen-specific lymphocytes can be enriched in the recovered cell population, allowing for subsequent detailed phenotypic and functional analysis. We demonstrate this approach in mice immunized with a model protein antigen or infected in the skin with vaccinia virus. After vaccination or infection, sampling microneedles allowed tissue-resident memory T cells (TRMs) to be longitudinally monitored in the skin for many months, during which time the antigen-specific T cell population in systemic circulation contracted to low or undetectable counts. Sampling microneedles did not change the immune status of naïve or antigen-exposed animals. We also validated the ability of cell sampling using human skin samples. This approach may be useful in vaccines and immunotherapies to temporally query TRM populations or as a diagnostic platform to sample for biomarkers in chronic inflammatory and autoimmune disorders, allowing information previously accessible only via invasive biopsies to be obtained in a minimally invasive manner from the skin or other mucosal tissues.
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Affiliation(s)
- Anasuya Mandal
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA.,Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA.,Institute for Soldier Nanotechnologies, MIT, Cambridge, MA 02139, USA
| | - Archana V Boopathy
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Lionel K W Lam
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA.,Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Kelly D Moynihan
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA.,Department of Biological Engineering, MIT, Cambridge, MA 02139, USA
| | - Mary E Welch
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Nitasha R Bennett
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Michelle E Turvey
- Infectious Diseases IRG, Singapore-MIT Alliance for Research and Technology, Singapore 138602, Singapore
| | - Nikki Thai
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Jenny H Van
- Department of Biological Engineering, MIT, Cambridge, MA 02139, USA
| | - J Christopher Love
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA.,Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA.,Institute for Soldier Nanotechnologies, MIT, Cambridge, MA 02139, USA.,Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Paula T Hammond
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA. .,Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA.,Institute for Soldier Nanotechnologies, MIT, Cambridge, MA 02139, USA.,Infectious Diseases IRG, Singapore-MIT Alliance for Research and Technology, Singapore 138602, Singapore
| | - Darrell J Irvine
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA. .,Institute for Soldier Nanotechnologies, MIT, Cambridge, MA 02139, USA.,Department of Biological Engineering, MIT, Cambridge, MA 02139, USA.,Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA.,Department of Materials Science and Engineering, MIT, Cambridge, MA 02139, USA.,Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
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231
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He X, Sun J, Zhuang J, Xu H, Liu Y, Wu D. Microneedle System for Transdermal Drug and Vaccine Delivery: Devices, Safety, and Prospects. Dose Response 2019; 17:1559325819878585. [PMID: 31662709 PMCID: PMC6794664 DOI: 10.1177/1559325819878585] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/30/2019] [Accepted: 09/04/2019] [Indexed: 12/18/2022] Open
Abstract
Microneedle (MN) delivery system has been greatly developed to deliver drugs into the skin painlessly, noninvasively, and safety. In the past several decades, various types of MNs have been developed by the newer producing techniques. Briefly, as for the morphologically, MNs can be classified into solid, coated, dissolved, and hollow MN, based on the transdermal drug delivery methods of "poke and patch," "coat and poke," "poke and release," and "poke and flow," respectively. Microneedles also have other characteristics based on the materials and structures. In addition, various manufacturing techniques have been well-developed based on the materials. In this review, the materials, structures, morphologies, and fabricating methods of MNs are summarized. A separate part of the review is used to illustrate the application of MNs to deliver vaccine, insulin, lidocaine, aspirin, and other drugs. Finally, the review ends up with a perspective on the challenges in research and development of MNs, envisioning the future development of MNs as the next generation of drug delivery system.
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Affiliation(s)
- Xiaoxiang He
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Jingyao Sun
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Jian Zhuang
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Hong Xu
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
| | - Ying Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing
University of Chemical Technology, Beijing, China
| | - Daming Wu
- College of Mechanical and Electrical Engineering, Beijing University
of Chemical Technology, Beijing, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing
University of Chemical Technology, Beijing, China
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232
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Chen YH, Lai KY, Chiu YH, Wu YW, Shiau AL, Chen MC. Implantable microneedles with an immune-boosting function for effective intradermal influenza vaccination. Acta Biomater 2019; 97:230-238. [PMID: 31362139 DOI: 10.1016/j.actbio.2019.07.048] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/21/2019] [Accepted: 07/25/2019] [Indexed: 12/11/2022]
Abstract
This study details effective influenza vaccination via sustained intradermal (ID) release of vaccines using implantable and patch-free chitosan microneedles (MNs). The microneedle (MN) patch is composed of vaccine-loaded chitosan MNs with a dissolvable supporting array that gives extra length for complete insertion of MNs and is dissolved within the skin during insertion. Chitosan MNs can be quickly and entirely implanted into the dermis to function as a depot and an immune-boosting agent for the extended release of vaccines and simultaneous activation of the immune system. We found the influenza virus-specific antibody levels induced by chitosan MN vaccination were significantly higher than those elicited by intramuscular (IM) immunization with influenza vaccine alone. The MN induced immune-enhancing effect was obvious 4 week after the vaccination and lasted for at least 16 weeks. Most importantly, MN-immunized mice were completely protected from H1N1 viral challenge without major weight loss, whereas mice receiving IM injection at the same dose had a mortality rate of 60% and experienced notable weight loss after challenge. Our results suggest that the chitosan MNs cannot only be a viable tool for precise ID vaccine delivery but also exert strong adjuvanticity to enhance vaccine potency and induce protective immunity against influenza virus infections. STATEMENT OF SIGNIFICANCE: There is an urgent need for generating a new vaccination strategy to address the threat of global pandemic influenza. This study presents implantable chitosan microneedles (MNs) with immune-boosting function for effective influenza vaccination. We demonstrate that the chitosan MN can not only be an efficient tool for sustained intradermal delivery but also serve as an immunological adjuvant to boost vaccine efficacy. Continuous antigen exposure and immune stimulation provided by the implanted MNs may enhance the immunogenicity of influenza vaccines and evoke long-lasting immune responses to completely protect mice from lethal influenza challenge. The proposed MN system has great potential to be used as a new adjuvanted vaccine formulation and make influenza vaccination more effective and more accessible.
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233
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Yan L, Alba M, Tabassum N, Voelcker NH. Micro‐ and Nanosystems for Advanced Transdermal Delivery. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900141] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Li Yan
- Monash Institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing Clayton Victoria 3168 Australia
| | - Maria Alba
- Monash Institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing Clayton Victoria 3168 Australia
| | - Nazia Tabassum
- Monash Institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
- The University of Central Punjab Johar Town Lahore 54000 Pakistan
| | - Nicolas H. Voelcker
- Monash Institute of Pharmaceutical Sciences Monash University Parkville Victoria 3052 Australia
- Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing Clayton Victoria 3168 Australia
- Melbourne Centre for Nanofabrication Victorian Node of the Australian National Fabrication Facility Clayton Victoria 3168 Australia
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234
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Bose RJC, Kim M, Chang JH, Paulmurugan R, Moon JJ, Koh WG, Lee SH, Park H. Biodegradable polymers for modern vaccine development. J IND ENG CHEM 2019; 77:12-24. [PMID: 32288512 PMCID: PMC7129903 DOI: 10.1016/j.jiec.2019.04.044] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/18/2019] [Accepted: 04/22/2019] [Indexed: 01/08/2023]
Abstract
Most traditional vaccines are composed either of a whole pathogen or its parts; these vaccines, however, are not always effective and can even be harmful. As such, additional agents known as adjuvants are necessary to increase vaccine safety and efficacy. This review summarizes the potential of biodegradable materials, including synthetic and natural polymers, for vaccine delivery. These materials are highly biocompatible and have minimal toxicity, and most biomaterial-based vaccines delivering antigens or adjuvants have been shown to improve immune response, compared to formulations consisting of the antigen alone. Therefore, these materials can be applied in modern vaccine development.
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Affiliation(s)
- Rajendran JC Bose
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, South Korea
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Stanford, CA 94305-5427, United States
| | - Minwoo Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, South Korea
| | - Ji Hyun Chang
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, South Korea
| | - Ramasamy Paulmurugan
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology and Canary Center at Stanford for Cancer Early Detection, Department of Radiology, School of Medicine, Stanford University, Stanford, CA 94305-5427, United States
| | - James J. Moon
- Department of Pharmaceutical Sciences, Department of Biomedical Engineering & Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, United States
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, YONSEI University, 50 Yonsei-ro Seodaemun-gu, Seoul, 03722, South Korea
| | - Soo-Hong Lee
- Department of Medical Biotechnology, Dongguk University Biomedical, Campus 32, Gyeonggi 10326, South Korea
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, South Korea
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235
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Rodgers AM, Cordeiro AS, Donnelly RF. Technology update: dissolvable microneedle patches for vaccine delivery. MEDICAL DEVICES-EVIDENCE AND RESEARCH 2019; 12:379-398. [PMID: 31572025 PMCID: PMC6756839 DOI: 10.2147/mder.s198220] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 08/08/2019] [Indexed: 12/17/2022] Open
Abstract
Despite vaccination representing one of the greatest advances of modern preventative medicine, there remain significant challenges in vaccine distribution, delivery and compliance. Dissolvable microarray patches or dissolving microneedles (DMN) have been proposed as an innovative vaccine delivery platform that could potentially revolutionize vaccine delivery and circumvent many of the challenges faced with current vaccine strategies. DMN, due to their ease of use, lack of elicitation of pain response, self-disabling nature and ease of transport and distribution, offer an attractive delivery option for vaccines. Additionally, as DMN inherently targets the uppermost skin layers, they facilitate improved vaccine efficacy, due to direct targeting of skin antigen-presenting cells. A plethora of publications have demonstrated the efficacy of DMN vaccination for a range of vaccines, with influenza receiving particular attention. However, before the viable adoption of DMN for vaccination purposes in a clinical setting, a number of fundamental questions must be addressed. Accordingly, this review begins by introducing some of the key barriers faced by current vaccination approaches and how DMN can overcome these challenges. We introduce some of the recent advances in the field of DMN technology, highlighting the potential impact DMN could have, particularly in countries of the developing world. We conclude by reflecting on some of the key questions that remain unanswered and which warrant further investigation before DMNs can be utilized in clinical settings.
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Affiliation(s)
- Aoife M Rodgers
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - Ana Sara Cordeiro
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, UK
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236
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Krieger KJ, Bertollo N, Dangol M, Sheridan JT, Lowery MM, O’Cearbhaill ED. Simple and customizable method for fabrication of high-aspect ratio microneedle molds using low-cost 3D printing. MICROSYSTEMS & NANOENGINEERING 2019; 5:42. [PMID: 31645996 PMCID: PMC6799892 DOI: 10.1038/s41378-019-0088-8] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/08/2019] [Accepted: 07/03/2019] [Indexed: 05/23/2023]
Abstract
We present a simple and customizable microneedle mold fabrication technique using a low-cost desktop SLA 3D printer. As opposed to conventional microneedle fabrication methods, this technique neither requires complex and expensive manufacturing facilities nor expertise in microfabrication. While most low-cost 3D-printed microneedles to date display low aspect ratios and poor tip sharpness, we show that by introducing a two-step "Print & Fill" mold fabrication method, it is possible to obtain high-aspect ratio sharp needles that are capable of penetrating tissue. Studying first the effect of varying design input parameters and print settings, it is shown that printed needles are always shorter than specified. With decreasing input height, needles also begin displaying an increasingly greater than specified needle base diameter. Both factors contribute to low aspect ratio needles when attempting to print sub-millimeter height needles. By setting input height tall enough, it is possible to print needles with high-aspect ratios and tip radii of 20-40 µm. This tip sharpness is smaller than the specified printer resolution. Consequently, high-aspect ratio sharp needle arrays are printed in basins which are backfilled and cured in a second step, leaving sub-millimeter microneedles exposed resulting microneedle arrays which can be used as male masters. Silicone female master molds are then formed from the fabricated microneedle arrays. Using the molds, both carboxymethyl cellulose loaded with rhodamine B as well as polylactic acid microneedle arrays are produced and their quality examined. A skin insertion study is performed to demonstrate the functional capabilities of arrays made from the fabricated molds. This method can be easily adopted by the microneedle research community for in-house master mold fabrication and parametric optimization of microneedle arrays.
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Affiliation(s)
- Kevin J. Krieger
- UCD Centre for Biomedical Engineering, University College Dublin, Belfield, Dublin 4 Ireland
- School of Mechanical & Materials Engineering, University College Dublin, Belfield, Dublin 4 Ireland
| | - Nicky Bertollo
- UCD Centre for Biomedical Engineering, University College Dublin, Belfield, Dublin 4 Ireland
- School of Mechanical & Materials Engineering, University College Dublin, Belfield, Dublin 4 Ireland
| | - Manita Dangol
- UCD Centre for Biomedical Engineering, University College Dublin, Belfield, Dublin 4 Ireland
- School of Mechanical & Materials Engineering, University College Dublin, Belfield, Dublin 4 Ireland
| | - John T. Sheridan
- UCD Centre for Biomedical Engineering, University College Dublin, Belfield, Dublin 4 Ireland
- School of Electrical & Electronic Engineering, University College Dublin, Belfield, Dublin 4 Ireland
| | - Madeleine M. Lowery
- UCD Centre for Biomedical Engineering, University College Dublin, Belfield, Dublin 4 Ireland
- School of Electrical & Electronic Engineering, University College Dublin, Belfield, Dublin 4 Ireland
| | - Eoin D. O’Cearbhaill
- UCD Centre for Biomedical Engineering, University College Dublin, Belfield, Dublin 4 Ireland
- School of Mechanical & Materials Engineering, University College Dublin, Belfield, Dublin 4 Ireland
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237
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Li Y, Liu F, Su C, Yu B, Liu D, Chen HJ, Lin DA, Yang C, Zhou L, Wu Q, Xia W, Xie X, Tao J. Biodegradable Therapeutic Microneedle Patch for Rapid Antihypertensive Treatment. ACS APPLIED MATERIALS & INTERFACES 2019; 11:30575-30584. [PMID: 31382742 DOI: 10.1021/acsami.9b09697] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A hypertensive emergency causes severe cardiovascular diseases accompanied by acute target organ damage, requiring rapid and smooth blood pressure (BP) reduction. Current medicines for treating hypertensive emergencies, such as sodium nitroprusside (SNP), require careful dose control to avoid side effects (e.g., cyanide poisoning). The clinical administration of SNP using intravenous injection or drip further restrict its usage for first aid or self-aid in emergencies. Here, we developed an antihypertensive microneedle (aH-MN) technique to transdermally deliver SNP in combination with sodium thiosulfate (ST) as a cyanide antidote in a painless way. Dissolvable microneedles loaded with SNP and ST were fabricated via the centrifugation casting method, where the SNPs were stably packaged in microneedles and would be immediately released into the systemic circulation via subcutaneous capillaries when aH-MNs penetrated the skin. The antihypertensive effects were demonstrated on spontaneously hypertensive rat models. Rapid and potent BP reduction was achieved via aH-MN treatment, fulfilling clinical BP-control requirements for hypertensive emergencies. The side effects including skin irritation and target organ damage of aH-MN therapies were evaluated; the combinative delivery of ST effectively suppressed these side effects induced by the consecutive intake of SNP. This study introduces an efficient and patient-friendly antihypertensive therapy with a favorable side-effect profile, particularly a controllable and self-administrable approach to treat hypertensive emergencies.
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Affiliation(s)
- Yan Li
- Department of Hypertension and Vascular Disease , The First Affiliated Hospital, Sun Yat-sen University , 510080 Guangzhou , China
- Department of Cardiovascular Medicine , The First Affiliated Hospital of Jinan University , 510630 Guangzhou , China
| | - Fanmao Liu
- Department of Hypertension and Vascular Disease , The First Affiliated Hospital, Sun Yat-sen University , 510080 Guangzhou , China
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology , Sun Yat-sen University , 510006 Guangzhou , China
| | - Chen Su
- Department of Hypertension and Vascular Disease , The First Affiliated Hospital, Sun Yat-sen University , 510080 Guangzhou , China
| | - Bingbo Yu
- Department of Hypertension and Vascular Disease , The First Affiliated Hospital, Sun Yat-sen University , 510080 Guangzhou , China
| | - Di Liu
- Pritzker School of Medicine , University of Chicago , Chicago , Illinois 60637 , United States
| | - Hui-Jiuan Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology , Sun Yat-sen University , 510006 Guangzhou , China
| | - Di-An Lin
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology , Sun Yat-sen University , 510006 Guangzhou , China
| | - Chengduan Yang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology , Sun Yat-sen University , 510006 Guangzhou , China
| | - Lingfei Zhou
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology , Sun Yat-sen University , 510006 Guangzhou , China
| | - Qianni Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center , Sun Yat-sen University , 510060 Guangzhou , China
| | - Wenhao Xia
- Department of Hypertension and Vascular Disease , The First Affiliated Hospital, Sun Yat-sen University , 510080 Guangzhou , China
| | - Xi Xie
- Department of Hypertension and Vascular Disease , The First Affiliated Hospital, Sun Yat-sen University , 510080 Guangzhou , China
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology , Sun Yat-sen University , 510006 Guangzhou , China
| | - Jun Tao
- Department of Hypertension and Vascular Disease , The First Affiliated Hospital, Sun Yat-sen University , 510080 Guangzhou , China
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239
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Pattarabhiran SP, Saju A, Sonawane KR, Manimaran R, Bhatnagar S, Roy G, Kulkarni RB, Venuganti VVK. Dissolvable Microneedle-Mediated Transcutaneous Delivery of Tetanus Toxoid Elicits Effective Immune Response. AAPS PharmSciTech 2019; 20:257. [PMID: 31332640 DOI: 10.1208/s12249-019-1471-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/08/2019] [Indexed: 11/30/2022] Open
Abstract
Transcutaneous immunization using a microneedle device presents a promising alternative to syringe-based injection of vaccines. The aim of this study was to investigate the effective immune response elicited after application of tetanus toxoid antigen-loaded dissolvable microneedles (TT-MN) in mice model. Dissolvable microneedles were prepared using 20% w/v of polyvinyl alcohol and polyvinyl pyrrolidone polymer mixture by micromolding technique. TT-MN were prepared by addition of tetanus toxoid to polymer mixture before casting microneedles. TT-MN were characterized using texture analyzer, stereomicroscope, and scanning electron microscope. Tetanus toxoid loading was found to be 77 ± 2 μg per microneedle array. Confocal microscopic analysis showed that the microneedles penetrated to a depth of 130 μm inside mouse skin. Complete dissolution of microneedles was achieved within 1 h after insertion in skin. Immunization studies in Swiss albino mice demonstrated significantly (p < 0.001) greater IgG, IgG1, and IgG2a antibody titers for TT-MN and intramuscular injection groups compared with naïve control. Splenocyte proliferation assay confirmed effective re-stimulation on exposure to tetanus toxoid in microneedle treatment groups. Taken together, TT-MN can be developed as minimally invasive system for transcutaneous delivery of tetanus toxoid antigen.
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Champeau M, Vignoud S, Mortier L, Mordon S. Photodynamic therapy for skin cancer: How to enhance drug penetration? JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 197:111544. [PMID: 31295716 DOI: 10.1016/j.jphotobiol.2019.111544] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 06/14/2019] [Accepted: 06/25/2019] [Indexed: 12/27/2022]
Abstract
Photodynamic therapy (PDT) induced by protoporphyrin IX (PpIX) has been widely used in dermatological practices such as treatment of skin cancers. Clearance rate depends on different factors such as light irradiation, skin oxygenation and drug penetration. The poor penetration of 5-aminolevulinic acid (5-ALA) with topical application is limited and restrains the production of PpIX which could restrict PDT outcomes. This review will focus on techniques already used to enhance drug penetration in human skin, and will present their results, advantages, and drawbacks. Chemical and physical pretreatments will be discussed. Chemical pre-treatments comprise of drug formulation modification, use of agents that modify the heme cycle, enhance PpIX formation, and the combination of differentiation-promoting agent prior to PDT. On the other hand, physical pretreatments affect the skin barrier by creating holes in the skin or by removing stratum corneum. To promote drug penetration, iontophoresis and temperature modulation are interesting alternative methods. Cellular mechanisms enrolled during chemical or physical pretreatments have been investigated in order to understand how 5-ALA penetrates the skin, why it is preferentially metabolized in PpIX in tumour cells, and how it could be accumulated in deeper skin layers. The objective of this review is to compare clinical trials that use innovative technology to conventional PDT treatment. Most of these pretreatments present good or even better clinical outcomes than usual PDT.
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Affiliation(s)
- Mathilde Champeau
- LETI-DTBS, CEA, 17 rue des Martyrs, Grenoble Cedex, France; U1189 - ONCO-THAI - Image Assisted Laser Therapy for Oncology, CHU Lille, Univ. Lille, Inserm, F-59000 Lille, France.
| | | | - Laurent Mortier
- U1189 - ONCO-THAI - Image Assisted Laser Therapy for Oncology, CHU Lille, Univ. Lille, Inserm, F-59000 Lille, France
| | - Serge Mordon
- U1189 - ONCO-THAI - Image Assisted Laser Therapy for Oncology, CHU Lille, Univ. Lille, Inserm, F-59000 Lille, France
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241
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Chen S, Matsumoto H, Moro-oka Y, Tanaka M, Miyahara Y, Suganami T, Matsumoto A. Smart Microneedle Fabricated with Silk Fibroin Combined Semi-interpenetrating Network Hydrogel for Glucose-Responsive Insulin Delivery. ACS Biomater Sci Eng 2019; 5:5781-5789. [DOI: 10.1021/acsbiomaterials.9b00532] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Siyuan Chen
- Kanagawa Institute of Industrial Science and Technology, Kanagawa 213-0012, Japan
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
| | - Hiroko Matsumoto
- Kanagawa Institute of Industrial Science and Technology, Kanagawa 213-0012, Japan
| | - Yuki Moro-oka
- Kanagawa Institute of Industrial Science and Technology, Kanagawa 213-0012, Japan
| | - Miyako Tanaka
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya 464-8601, Japan
| | - Yuji Miyahara
- Kanagawa Institute of Industrial Science and Technology, Kanagawa 213-0012, Japan
| | - Takayoshi Suganami
- Department of Molecular Medicine and Metabolism, Research Institute of Environmental Medicine, Nagoya University, Nagoya 464-8601, Japan
| | - Akira Matsumoto
- Kanagawa Institute of Industrial Science and Technology, Kanagawa 213-0012, Japan
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101-0062, Japan
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242
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Rapidly dissolving bilayer microneedle arrays – A minimally invasive transdermal drug delivery system for vitamin B12. Int J Pharm 2019; 566:299-306. [DOI: 10.1016/j.ijpharm.2019.05.066] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 12/30/2022]
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243
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Lin S, Quan G, Hou A, Yang P, Peng T, Gu Y, Qin W, Liu R, Ma X, Pan X, Liu H, Wang L, Wu C. Strategy for hypertrophic scar therapy: Improved delivery of triamcinolone acetonide using mechanically robust tip-concentrated dissolving microneedle array. J Control Release 2019; 306:69-82. [DOI: 10.1016/j.jconrel.2019.05.038] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 05/24/2019] [Accepted: 05/25/2019] [Indexed: 12/22/2022]
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244
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Paul R, Saville AC, Hansel JC, Ye Y, Ball C, Williams A, Chang X, Chen G, Gu Z, Ristaino JB, Wei Q. Extraction of Plant DNA by Microneedle Patch for Rapid Detection of Plant Diseases. ACS NANO 2019; 13:6540-6549. [PMID: 31179687 DOI: 10.1021/acsnano.9b00193] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In-field molecular diagnosis of plant diseases via nucleic acid amplification is currently limited by cumbersome protocols for extracting and isolating pathogenic DNA from plant tissues. To address this challenge, a rapid plant DNA extraction method was developed using a disposable polymeric microneedle (MN) patch. By applying MN patches on plant leaves, amplification-assay-ready DNA can be extracted within a minute from different plant species. MN-extracted DNA was used for direct polymerase chain reaction amplification of plant plastid DNA without purification. Furthermore, using this patch device, extraction of plant pathogen DNA ( Phytophthora infestans) from both laboratory-inoculated and field-infected leaf samples was performed for detection of late blight disease in tomato. MN extraction achieved 100% detection rate of late blight infections for samples after 3 days of inoculation when compared to the conventional gold standard cetyltrimethylammonium bromide (CTAB)-based DNA extraction method and 100% detection rate for all blind field samples tested. This simple, cell-lysis-free, and purification-free DNA extraction method could be a transformative approach to facilitate rapid sample preparation for molecular diagnosis of various plant diseases directly in the field.
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Affiliation(s)
| | | | | | - Yanqi Ye
- Joint Department of Biomedical Engineering , University of North Carolina at Chapel Hill, North Carolina State University , Raleigh , North Carolina 27695 , United States
| | | | | | - Xinyuan Chang
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , P.R. China
| | - Guojun Chen
- Joint Department of Biomedical Engineering , University of North Carolina at Chapel Hill, North Carolina State University , Raleigh , North Carolina 27695 , United States
| | - Zhen Gu
- Joint Department of Biomedical Engineering , University of North Carolina at Chapel Hill, North Carolina State University , Raleigh , North Carolina 27695 , United States
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245
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A Snapshot of Transdermal and Topical Drug Delivery Research in Canada. Pharmaceutics 2019; 11:pharmaceutics11060256. [PMID: 31159422 PMCID: PMC6631132 DOI: 10.3390/pharmaceutics11060256] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/28/2019] [Accepted: 05/30/2019] [Indexed: 01/11/2023] Open
Abstract
The minimally- or non-invasive delivery of therapeutic agents through the skin has several advantages compared to other delivery routes and plays an important role in medical care routines. The development and refinement of new technologies is leading to a drastic expansion of the arsenal of drugs that can benefit from this delivery strategy and is further intensifying its impact in medicine. Within Canada, as well, a few research groups have worked on the development of state-of-the-art transdermal delivery technologies. Within this short review, we aim to provide a critical overview of the development of these technologies in the Canadian environment.
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246
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Liu S, Zhang S, Duan Y, Niu Y, Gu H, Zhao Z, Zhang S, Yang Y, Wang X, Gao Y, Yang P. Transcutaneous immunization of recombinant Staphylococcal enterotoxin B protein using a dissolving microneedle provides potent protection against lethal enterotoxin challenge. Vaccine 2019; 37:3810-3819. [PMID: 31147275 DOI: 10.1016/j.vaccine.2019.05.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 05/16/2019] [Accepted: 05/19/2019] [Indexed: 12/25/2022]
Abstract
Staphylococcal enterotoxin B (SEB) produced by the Staphylococcus aureus bacteriumis most commonly associated with food poisoning and is known to also cause toxic shock syndrome. Currently, no approved vaccine or specific drug is available to treat SEB intoxication. In this study, we fabricated dissolving microneedles (MNs) loaded with recombinant SEB (rSEB) protein, and evaluated its characteristics, including dissolution profile, protein particle size, insertion depth, antigen retention time in vivo, and skin irritation. Our results showed that rSEB protein-loaded dissolving MNs made of chondroitin sulfate (2%) and trehalose (0.8%) could easily penetrate into the mouse skin within 5 min. The rSEB particle size was unchanged before and after MN fabrication. The skin penetration depth of the MNs was 260 µm. Moreover, the MNs also significantly extended the antigen retention time in vivo. rSEB protein-loaded dissolving MNs also triggered slight erythema at the beginning of administration, but this erythema disappeared within a few hours. More importantly, we investigated the immunogenicity and protective efficacy of rSEB protein-loaded dissolving MNs. Challenge studies in mice revealed that mice in full-dose MN group had a high level of SEB specific antibody response thatprovided100% protection against a lethal SEB toxin challenge. However, there was only 60% protection observed in mice that were in the half-dose MN (dose sparing) group. We also determined the pathological alterations in the tissues of the immunized mice. Taken together, these dissolving MNs may present a promising transcutaneous immunization strategy for treating SEB intoxication.
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Affiliation(s)
- Siqi Liu
- Beijing 302 Hospital/5th Medical Center of Chinese PLA General of Hospital, Beijing 100039, China; College of Basic Medicine, Inner Mongolia Medical University, Hohhot 010110, China
| | - Suohui Zhang
- Key Laboratory of Photo Chemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing China
| | - Yueqiang Duan
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yan Niu
- College of Basic Medicine, Inner Mongolia Medical University, Hohhot 010110, China
| | - Hongjing Gu
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Zhongpeng Zhao
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Shaogeng Zhang
- Beijing 302 Hospital/5th Medical Center of Chinese PLA General of Hospital, Beijing 100039, China
| | - Ying Yang
- College of Basic Medicine, Inner Mongolia Medical University, Hohhot 010110, China
| | - Xiliang Wang
- State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.
| | - Yunhua Gao
- Key Laboratory of Photo Chemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing China.
| | - Penghui Yang
- Beijing 302 Hospital/5th Medical Center of Chinese PLA General of Hospital, Beijing 100039, China; State Key Laboratory of Pathogens and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China.
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247
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Sun X, Zeng L, Huang Y. Transcutaneous delivery of DNA/mRNA for cancer therapeutic vaccination. J Gene Med 2019; 21:e3089. [PMID: 30958606 DOI: 10.1002/jgm.3089] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/17/2019] [Accepted: 03/22/2019] [Indexed: 12/11/2022] Open
Abstract
Therapeutic vaccination is a promising strategy for the immunotherapy of cancers. It eradicates cancer cells by evoking and strengthening the patient's own immune system. Because of the easy access and sophisticated immune networks, the skin becomes an ideal target organ for vaccination. Genetic vaccines have been widely investigated, with the advantages of the delivery of multiple antigens and a lower cost for production compared to protein/peptide vaccines. This review summarizes the advances made with respect to the transcutaneous delivery of DNA/mRNA for cancer therapeutic vaccination and also gives a brief description of the immunological milieu of the skin and the importance of dendritic cell-targeting in vaccine delivery, as well as the technologies that aim to facilitate antigen delivery and modulate antigen-presenting cells, thus improving cellular responses. The applications of genetic vaccines encoding tumor antigens delivered through the skin route, both in preclinical and clinical trials, are outlined.
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Affiliation(s)
- Xiaoyi Sun
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Linghui Zeng
- School of Medicine, Zhejiang University City College, Hangzhou, China
| | - Yongzhuo Huang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
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248
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Turvey ME, Uppu DS, Mohamed Sharif AR, Bidet K, Alonso S, Ooi EE, Hammond PT. Microneedle-based intradermal delivery of stabilized dengue virus. Bioeng Transl Med 2019; 4:e10127. [PMID: 31249877 PMCID: PMC6584444 DOI: 10.1002/btm2.10127] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/24/2019] [Accepted: 01/24/2019] [Indexed: 12/26/2022] Open
Abstract
Current live-attenuated dengue vaccines require strict cold chain storage. Methods to preserve dengue virus (DENV) viability, which enable vaccines to be transported and administered at ambient temperatures, will be decisive towards the implementation of affordable global vaccination schemes with broad immunization coverage in resource-limited areas. We have developed a microneedle (MN)-based vaccine platform for the stabilization and intradermal delivery of live DENV from minimally invasive skin patches. Dengue virus-stabilized microneedle arrays (VSMN) were fabricated using saccharide-based formulation of virus and could be stored dry at ambient temperature up to 3 weeks with maintained virus viability. Following intradermal vaccination, VSMN-delivered DENV was shown to elicit strong neutralizing antibody responses and protection from viral challenge, comparable to that of the conventional liquid vaccine administered subcutaneously. This work supports the potential for MN-based dengue vaccine technology and the progression towards cold chain-independence. Dengue virus can be stabilized using saccharide-based formulations and coated on microneedle array vaccine patches for storage in dry state with preserved viability at ambient temperature (VSMN; virus-stabilized microneedle arrays).
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Affiliation(s)
- Michelle E. Turvey
- Infectious Diseases IRGSingapore‐MIT Alliance for Research and TechnologySingapore
| | - Divakara S.S.M. Uppu
- Infectious Diseases IRGSingapore‐MIT Alliance for Research and TechnologySingapore
| | | | - Katell Bidet
- Infectious Diseases IRGSingapore‐MIT Alliance for Research and TechnologySingapore
| | - Sylvie Alonso
- Department of Microbiology & Immunology, Yong Loo Lin School of Medicine, Immunology ProgrammeLife Sciences Institute, National University of SingaporeSingapore
| | - Eng Eong Ooi
- Infectious Diseases IRGSingapore‐MIT Alliance for Research and TechnologySingapore
- Emerging Infectious DiseasesDuke‐NUS Graduate Medical SchoolSingapore
| | - Paula T. Hammond
- Infectious Diseases IRGSingapore‐MIT Alliance for Research and TechnologySingapore
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of TechnologyCambridgeMA
- Department of Chemical EngineeringMassachusetts Institute of TechnologyCambridgeMA
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249
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Yang J, Liu X, Fu Y, Song Y. Recent advances of microneedles for biomedical applications: drug delivery and beyond. Acta Pharm Sin B 2019; 9:469-483. [PMID: 31193810 PMCID: PMC6543086 DOI: 10.1016/j.apsb.2019.03.007] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 01/29/2019] [Accepted: 02/16/2019] [Indexed: 12/22/2022] Open
Abstract
The microneedle (MN), a highly efficient and versatile device, has attracted extensive scientific and industrial interests in the past decades due to prominent properties including painless penetration, low cost, excellent therapeutic efficacy, and relative safety. The robust microneedle enabling transdermal delivery has a paramount potential to create advanced functional devices with superior nature for biomedical applications. In this review, a great effort has been made to summarize the advance of microneedles including their materials and latest fabrication method, such as three-dimensional printing (3DP). Importantly, a variety of representative biomedical applications of microneedles such as disease treatment, immunobiological administration, disease diagnosis and cosmetic field, are highlighted in detail. At last, conclusions and future perspectives for development of advanced microneedles in biomedical fields have been discussed systematically. Taken together, as an emerging tool, microneedles have showed profound promise for biomedical applications.
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250
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Xu J, Danehy R, Cai H, Ao Z, Pu M, Nusawardhana A, Rowe-Magnus D, Guo F. Microneedle Patch-Mediated Treatment of Bacterial Biofilms. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14640-14646. [PMID: 30933463 DOI: 10.1021/acsami.9b02578] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Current treatments of bacterial biofilms are limited by the poor penetration of antibiotics through their physical barrier as well as significant off-target toxicity of antibiotics and the induction of antibiotic resistance. Here we report a microneedle patch-mediated treatment for the effective elimination of biofilms by penetrating the biofilm and specifically delivering antibiotics to regions of active growth. We fabricated patches with self-dissolvable microneedles and needle tips loaded with chloramphenicol (CAM)-bearing and gelatinase-sensitive gelatin nanoparticles (CAM@GNPs). During the microneedle patch-mediated treatment, arrays of 225 microneedles simultaneously penetrate the biofilm matrix. Once inside, the microneedles dissolve and uniformly release CAM@GNPs into the surrounding area. In response to the gelatinase produced by the active bacterial community, the CAM@GNPs disassemble and release CAM into these active regions of the biofilm. Moreover, CAM@GNPs exhibited minimal off-target toxicity compared to direct CAM administration, which in turn favors wound healing. Importantly, we found that our microneedle-mediated treatment is more effective in treating Vibrio vulnificus biofilms than drug in free solution. We believe this new treatment strategy can be used to improve the delivery of a wide range of antimicrobial agents to biofilm-contaminated sites.
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