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Fitaihi R, Abukhamees S, Chung SH, Craig DQM. Optimization of stereolithography 3D printing of microneedle micro-molds for ocular drug delivery. Int J Pharm 2024; 658:124195. [PMID: 38703935 DOI: 10.1016/j.ijpharm.2024.124195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/30/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
Microneedles (MN) have emerged as an innovative technology for drug delivery, offering a minimally invasive approach to administer therapeutic agents. Recent applications have included ocular drug delivery, requiring the manufacture of sub-millimeter needle arrays in a reproducible and reliable manner. The development of 3D printing technologies has facilitated the fabrication of MN via mold production, although there is a paucity of information available regarding how the printing parameters may influence crucial issues such as sharpness and penetration efficacy. In this study, we have developed and optimized a 3D-printed MN micro-mold using stereolithography (SLA) 3D printing to prepare a dissolving ocular MN patch. The effects of a range of parameters including aspect ratio, layer thickness, length, mold shape and printing orientation have been examined with regard to both architecture and printing accuracy of the MN micro-mold, while the effects of printing angle on needle fidelity was also examined for a range of basic shapes (conical, pyramidal and triangular pyramidal). Mechanical strength and in vitro penetration of the polymeric (PVP/PVA) MN patch produced from reverse molds fabricated using MN with a range of shapes and height, and aspect ratios were assessed, followed by ex vivo studies of penetration into excised scleral and corneal tissues. The optimization process identified the parameters required to produce MN with the sharpest tips and highest dimensional fidelity, while the ex vivo studies indicated that these optimized systems would penetrate the ocular tissue with minimal applied pressure, thereby allowing ease of patient self-administration.
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Affiliation(s)
- Rawan Fitaihi
- Research Department of Pharmaceutics, University College London, School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX London, UK; Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
| | - Shorooq Abukhamees
- Research Department of Pharmaceutics, University College London, School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX London, UK; Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, The Hashemite University, Zarqa, Jordan.
| | - Se Hun Chung
- Research Department of Pharmaceutics, University College London, School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX London, UK; Academic Centre of Reconstructive Science, King's College London, London, UK.
| | - Duncan Q M Craig
- Research Department of Pharmaceutics, University College London, School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX London, UK; Faculty of Science, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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Limcharoen B, Wanichwecharungruang S, Kröger M, Sansureerungsikul T, Schleusener J, Lena Klein A, Banlunara W, Meinke MC, Darvin ME. Dissolvable microneedles in the skin: Determination the impact of barrier disruption and dry skin on dissolution. Eur J Pharm Biopharm 2024; 199:114303. [PMID: 38657740 DOI: 10.1016/j.ejpb.2024.114303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/02/2024] [Accepted: 04/22/2024] [Indexed: 04/26/2024]
Abstract
Dissolvable microneedles (DMNs), fabricated from biocompatible materials that dissolve in both water and skin have gained popularity in dermatology. However, limited research exists on their application in compromised skin conditions. This study compares the hyaluronic acid-based DMNs penetration, formation of microchannels, dissolution, and diffusion kinetics in intact, barrier-disrupted (tape stripped), and dry (acetone-treated) porcine ear skin ex vivo. After DMNs application, comprehensive investigations including dermoscopy, stereomicroscope, skin hydration, transepidermal water loss (TEWL), optical coherence tomography (OCT), reflectance confocal laser scanning microscopy (RCLSM), confocal Raman micro-spectroscopy (CRM), two-photon tomography combined with fluorescence lifetime imaging (TPT-FLIM), histology, and scanning electron microscopy (SEM) were conducted. The 400 µm long DMNs successfully penetrated the skin to depths of ≈200 µm for dry skin and ≈200-290 µm for barrier-disrupted skin. Although DMNs fully inserted into all skin conditions, their dissolution rates were high in barrier-disrupted and low in dry skin, as observed through stereomicroscopy and TPT-FLIM. The dissolved polymer exhibited a more significant expansion in barrier-disrupted skin compared to intact skin, with the smallest increase observed in dry skin. Elevated TEWL and reduced skin hydration levels were evident in barrier-disrupted and dry skins compared to intact skin. OCT and RCLSM revealed noticeable skin indentation and pronounced microchannel areas, particularly in barrier-disrupted and dry skin. Additional confirmation of DMN effects on the skin and substance dissolution was obtained through histology, SEM, and CRM techniques. This study highlights the impact of skin condition on DMN effectiveness, emphasizing the importance of considering dissolvability and dissolution rates of needle materials, primarily composed of hyaluronic acid, for optimizing DMN-based drug delivery.
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Affiliation(s)
- Benchaphorn Limcharoen
- Department of Anatomy, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand; Center of Excellence in Advanced Materials and Biointerfaces, Chulalongkorn University, 10330, Thailand
| | - Supason Wanichwecharungruang
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand; Center of Excellence in Advanced Materials and Biointerfaces, Chulalongkorn University, 10330, Thailand
| | - Marius Kröger
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology (CCP), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Germany
| | - Titiporn Sansureerungsikul
- Mineed Technology, 928 Block 28, Building D, Chulalongkorn 7 Alley, Wangmai, Pathumwan, Bangkok 10330, Thailand
| | - Johannes Schleusener
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology (CCP), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Germany
| | - Anna Lena Klein
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology (CCP), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Germany
| | - Wijit Banlunara
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand; Center of Excellence in Advanced Materials and Biointerfaces, Chulalongkorn University, 10330, Thailand
| | - Martina C Meinke
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology (CCP), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Germany.
| | - Maxim E Darvin
- Department of Dermatology, Venereology and Allergology, Center of Experimental and Applied Cutaneous Physiology (CCP), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Germany.
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3
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Babu MR, Vishwas S, Khursheed R, Harish V, Sravani AB, Khan F, Alotaibi B, Binshaya A, Disouza J, Kumbhar PS, Patravale V, Gupta G, Loebenberg R, Arshad MF, Patel A, Patel S, Dua K, Singh SK. Unravelling the role of microneedles in drug delivery: Principle, perspectives, and practices. Drug Deliv Transl Res 2024; 14:1393-1431. [PMID: 38036849 DOI: 10.1007/s13346-023-01475-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2023] [Indexed: 12/02/2023]
Abstract
In recent year, the research of transdermal drug delivery systems has got substantial attention towards the development of microneedles (MNs). This shift has occurred due to multifaceted advantages of MNs as they can be utilized to deliver the drug deeper to the skin with minimal invasion, offer successful delivery of drugs and biomolecules that are susceptible to degradation in gastrointestinal tract (GIT), act as biosensors, and help in monitoring the level of biomarkers in the body. These can be fabricated into different types based on their applications as well as material for fabrication. Some of their types include solid MNs, hollow MNs, coated MNs, hydrogel forming MNs, and dissolving MNs. These MNs deliver the therapeutics via microchannels deeper into the skin. The coated and hollow MNs have been found successful. However, they suffer from poor drug loading and blocking of pores. In contrast, dissolving MNs offer high drug loading. These MNs have also been utilized to deliver vaccines and biologicals. They have also been used in cosmetics. The current review covers the different types of MNs, materials used in their fabrication, properties of MNs, and various case studies related to their role in delivering therapeutics, monitoring level of biomarkers/hormones in body such as insulin. Various patents and clinical trials related to MNs are also covered. Covered are the major bottlenecks associated with their clinical translation and potential future perspectives.
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Affiliation(s)
- Molakpogu Ravindra Babu
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Sukriti Vishwas
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Rubiya Khursheed
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Vancha Harish
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India
| | - Anne Boyina Sravani
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Farhan Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al- Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | - Bader Alotaibi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al- Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | - Abdulkarim Binshaya
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al Kharj, Saudi Arabia
| | - John Disouza
- Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala , Kolhapur, Maharashtra, 416113, India
| | - Popat S Kumbhar
- Tatyasaheb Kore College of Pharmacy, Warananagar, Tal: Panhala , Kolhapur, Maharashtra, 416113, India
| | - Vandana Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Matunga, Mumbai, Maharashtra, 400019, India
| | - Gaurav Gupta
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248007, India
- School of Pharmacy, Suresh Gyan Vihar University, Mahal Road, Jagatpura , 30201, Jaipur, India
| | - Raimar Loebenberg
- University of Alberta, Faculty of Pharmacy and Pharmaceutical Sciences, Edmonton , AB T6G2N8, Alberta, Canada
| | - Mohammed Faiz Arshad
- Department of Scientific Communications, Isthmus Research and Publishing House, New Delhi, 110044, India
| | - Archita Patel
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, CHARUSAT Campus, At & Post: Changa, Tal.:- Petlad, Dist.:- Anand-388 421, Gujarat, India
| | - Samir Patel
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, CHARUSAT Campus, At & Post: Changa, Tal.:- Petlad, Dist.:- Anand-388 421, Gujarat, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, 144411, Punjab, India.
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia.
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Chang Z, Wu Y, Hu P, Jiang J, Quan G, Wu C, Pan X, Huang Z. The Necessity to Investigate In Vivo Fate of Nanoparticle-Loaded Dissolving Microneedles. Pharmaceutics 2024; 16:286. [PMID: 38399340 PMCID: PMC10892231 DOI: 10.3390/pharmaceutics16020286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/09/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Transdermal drug delivery systems are rapidly gaining prominence and have found widespread application in the treatment of numerous diseases. However, they encounter the challenge of a low transdermal absorption rate. Microneedles can overcome the stratum corneum barrier to enhance the transdermal absorption rate. Among various types of microneedles, nanoparticle-loaded dissolving microneedles (DMNs) present a unique combination of advantages, leveraging the strengths of DMNs (high payload, good mechanical properties, and easy fabrication) and nanocarriers (satisfactory solubilization capacity and a controlled release profile). Consequently, they hold considerable clinical application potential in the precision medicine era. Despite this promise, no nanoparticle-loaded DMN products have been approved thus far. The lack of understanding regarding their in vivo fate represents a critical bottleneck impeding the clinical translation of relevant products. This review aims to elucidate the current research status of the in vivo fate of nanoparticle-loaded DMNs and elaborate the necessity to investigate the in vivo fate of nanoparticle-loaded DMNs from diverse aspects. Furthermore, it offers insights into potential entry points for research into the in vivo fate of nanoparticle-loaded DMNs, aiming to foster further advancements in this field.
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Affiliation(s)
- Ziyao Chang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (Z.C.); (Y.W.); (X.P.)
| | - Yuhuan Wu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (Z.C.); (Y.W.); (X.P.)
| | - Ping Hu
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.H.); (G.Q.); (C.W.)
| | - Junhuang Jiang
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.H.); (G.Q.); (C.W.)
| | - Guilan Quan
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.H.); (G.Q.); (C.W.)
| | - Chuanbin Wu
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.H.); (G.Q.); (C.W.)
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China; (Z.C.); (Y.W.); (X.P.)
| | - Zhengwei Huang
- College of Pharmacy, Jinan University, Guangzhou 511443, China; (P.H.); (G.Q.); (C.W.)
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Zheng L, Chen Y, Gu X, Li Y, Zhao H, Shao W, Ma T, Wu C, Wang Q. Co-delivery of drugs by adhesive transdermal patches equipped with dissolving microneedles for the treatment of rheumatoid arthritis. J Control Release 2024; 365:274-285. [PMID: 37979695 DOI: 10.1016/j.jconrel.2023.11.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/20/2023]
Abstract
In this study, a dosage form consisting of dissolving (D) microneedles (M) and an adhesive (A) transdermal patch (P; DMAP) was designed and pre-clinically evaluated for the treatment of rheumatoid arthritis (RA). The tip of the dissolving microneedles (DMNs) was loaded with the macromolecular drug melittin (Mel@DMNs), this to treat joint inflammation and bone damage, while the adhesive transdermal patches contained the low molecular weight drug diclofenac sodium (DS; DS@AP) for pain relief. Mel@DMNs and DS@AP were ingeniously connected through an isolation layer for compounding Mel-DS@DMAP for the simultaneous delivery of the drugs. In vitro and in vivo experiments showed that DS@AP did not affect the mechanical properties and dissolution process of Mel@DMNs while the pores formed by the microneedles promoted the skin penetration of DS. Treatment of rats suffering from RA with Mel-DS@DMAP reduced paw swelling and damage of the synovium, joint and cartilage, suggesting that the 'patch-microneedle' dosage form might be promising for the treatment and management of RA.
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Affiliation(s)
- Lijie Zheng
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - Yuanzheng Chen
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, China
| | - Xun Gu
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - Yingying Li
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu Medical College, Bengbu 233030, China
| | - Hanqing Zhao
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - Wenjun Shao
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
| | - Tao Ma
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu Medical College, Bengbu 233030, China
| | - Chuanbin Wu
- School of Pharmacy, Jinan University, Guangzhou 510006, China
| | - Qingqing Wang
- School of Pharmacy, Bengbu Medical College, Bengbu 233030, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu Medical College, Bengbu 233030, China.
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Zhao W, Zheng L, Yang J, Ma Z, Tao X, Wang Q. Dissolving microneedle patch-assisted transdermal delivery of methotrexate improve the therapeutic efficacy of rheumatoid arthritis. Drug Deliv 2023; 30:121-132. [PMID: 36533887 PMCID: PMC9769132 DOI: 10.1080/10717544.2022.2157518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Methotrexate (MTX) is a first-line treatment for rheumatoid arthritis (RA), but its clinical use is greatly limited by the adverse effects and poor patient compliance caused by traditional oral administration or injection. In recent years, some transdermal drug delivery systems have received considerable attention due to overcoming these shortcomings. In this study, we developed dissolving microneedle patch (DMNP) for transdermal delivery of MTX to treat RA safely and effectively. The morphology, mechanical strength, skin insertion, drug content, in vitro transdermal delivery, and other properties of DMNP were characterized. Meanwhile, the adjuvant-induced arthritis model of rats was established to investigate the therapeutic effect of MTX-loaded DMNP in vivo. The results showed that the microneedles had excellent morphology with neat array and complete needles, good puncture performance and mechanical strength, and rapid intradermal dissolution rate. In vitro transdermal delivery results indicated that microneedles could significantly increase drug transdermal permeation compared with the cream group. The pharmacological study showed that MTX-loaded DMNP significantly alleviated paw swelling, inhibit inflammatory response via downregulating the levels of TNF-α and IL-1β, relieved synovium destruction with less cartilage erosion, and slowed the progression of RA in AIA rats. Besides, DMNP presented better therapeutic performance than cream or intragastric administration at the same dosage of MTX. In conclusion, the MTX-loaded dissolving microneedle patch has advantages of safety, convenience, and high efficacy over conventional administrations, laying a foundation for the transdermal drug delivery system treatment of rheumatoid arthritis.
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Affiliation(s)
- Weiman Zhao
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Lijie Zheng
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Jianhui Yang
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Zihui Ma
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Xinyi Tao
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Qingqing Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, China,Engineering Research Center for Biochemical Pharmaceuticals of Anhui Province, Bengbu Medical College, Bengbu, China,CONTACT Qingqing Wang School of Pharmacy, Bengbu Medical College, Bengbu 233030, China
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Bisgaard SI, Nguyen LQ, Bøgh KL, Keller SS. Dermal tissue penetration of in-plane silicon microneedles evaluated in skin-simulating hydrogel, rat skin and porcine skin. BIOMATERIALS ADVANCES 2023; 155:213659. [PMID: 37939443 DOI: 10.1016/j.bioadv.2023.213659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/18/2023] [Accepted: 10/07/2023] [Indexed: 11/10/2023]
Abstract
Recently, microneedle-based sensors have been introduced as novel strategy for in situ monitoring of biomarkers in the skin. Here, in-plane silicon microneedles with different dimensions and shapes are fabricated and their ability to penetrate skin is evaluated. Arrays with flat, triangular, hypodermic, lancet and pencil-shaped microneedles, with lengths of 500-1000 μm, widths of 200-400 μm and thickness of 180-500 μm are considered. Fracture force is higher than 20 N for all microneedle arrays (MNA) confirming a high mechanical stability of the microneedles. Penetration force in skin-simulating hydrogels, excised rat abdominal skin and porcine ear skin is at least five times lower than the fracture force for all MNA designs. The lowest force for skin penetration is required for triangular microneedles with a low width and thickness. Skin tissue staining and histological analysis of rat abdominal skin and porcine ear skin confirm successful penetration of the epidermis for all MNA designs. However, the penetration depth is between 100 and 300 μm, which is considerably lower than the microneedle length. Tissue damage estimated by visual analysis of the penetration hole is smallest for triangular microneedles. Penetration ability and tissue damage are compared to the skin prick test (SPT) needle applied in allergy testing.
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Affiliation(s)
- Stephanie Ingemann Bisgaard
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, Ørsteds Plads, Building 347, 2800 Kgs. Lyngby, Denmark; National Food Institute, DTU Food, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs. Lyngby, Denmark
| | - Long Quang Nguyen
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, Ørsteds Plads, Building 347, 2800 Kgs. Lyngby, Denmark
| | - Katrine Lindholm Bøgh
- National Food Institute, DTU Food, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs. Lyngby, Denmark
| | - Stephan Sylvest Keller
- National Centre for Nano Fabrication and Characterization, DTU Nanolab, Technical University of Denmark, Ørsteds Plads, Building 347, 2800 Kgs. Lyngby, Denmark.
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8
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Edwards C, Shah SA, Gebhardt T, Jewell CM. Exploiting Unique Features of Microneedles to Modulate Immunity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302410. [PMID: 37380199 PMCID: PMC10753036 DOI: 10.1002/adma.202302410] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/01/2023] [Indexed: 06/30/2023]
Abstract
Microneedle arrays (MNAs) are small patches containing hundreds of short projections that deliver signals directly to dermal layers without causing pain. These technologies are of special interest for immunotherapy and vaccine delivery because they directly target immune cells concentrated in the skin. The targeting abilities of MNAs result in efficient immune responses-often more protective or therapeutic-compared to conventional needle delivery. MNAs also offer logistical benefits, such as self-administration and transportation without refrigeration. Thus, numerous preclinical and clinical studies are exploring these technologies. Here the unique advantages of MNA, as well as critical challenges-such as manufacturing and sterility issues-the field faces to enable widespread deployment are discussed. How MNA design parameters can be exploited for controlled release of vaccines and immunotherapies, and the application to preclinical models of infection, cancer, autoimmunity, and allergies are explained. Specific strategies are also discussed to reduce off-target effects compared to conventional vaccine delivery routes, and novel chemical and manufacturing controls that enable cargo stability in MNAs across flexible intervals and temperatures. Clinical research using MNAs is then examined. Drawbacks of MNAs and the implications, and emerging opportunities to exploit MNAs for immune engineering and clinical use are concluded.
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Affiliation(s)
- Camilla Edwards
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA
| | - Shrey A Shah
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA
| | - Thomas Gebhardt
- Department of Microbiology & Immunology, The University of Melbourne at the Peter Doherty Institute for Infection & Immunity, Melbourne, VIC, 3000, Australia
| | - Christopher M Jewell
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, 20742, USA
- US Department of Veterans Affairs, VA Maryland Health Care System, Baltimore, MD, 21201, USA
- Robert E. Fischell Institute for Biomedical Devices, College Park, MD, 20742, USA
- Department of Microbiology and Immunology, University of Maryland Medical School, Baltimore, MD, 21201, USA
- Marlene and Stewart Greenebaum Cancer Center, Baltimore, MD, 21201, USA
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9
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Glover K, Mishra D, Gade S, Vora LK, Wu Y, Paredes AJ, Donnelly RF, Singh TRR. Microneedles for advanced ocular drug delivery. Adv Drug Deliv Rev 2023; 201:115082. [PMID: 37678648 DOI: 10.1016/j.addr.2023.115082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/15/2023] [Accepted: 08/22/2023] [Indexed: 09/09/2023]
Abstract
In the field of ocular drug delivery, topical delivery remains the most common treatment option for managing anterior segment diseases, whileintraocular injectionsare the current gold standard treatment option for treating posterior segment diseases. Nonetheless, topical eye drops are associated with low bioavailability (<5%), and theintravitreal administration procedure is highly invasive, yielding poor patient acceptability. In both cases, frequent administration is currently required. As a result, there is a clear unmet need for sustained drug delivery to the eye, particularly in a manner that can be localised. Microneedles, which are patches containing an array of micron-scale needles (<1 mm), have the potential to meet this need. These platforms can enable localised drug delivery to the eye while enhancing penetration of drug molecules through key ocular barriers, thereby improving overall therapeutic outcomes. Moreover, the minimally invasive manner in which microneedles are applied could provide significant advantages over traditional intravitreal injections regarding patient acceptability. Considering the benefitsofthis novel ocular delivery system, this review provides an in-depth overviewofthe microneedle systems for ocular drug delivery, including the types of microneedles used and therapeutics delivered. Notably, we outline and discuss the current challenges associated with the clinical translation of these platforms and offer opinions on factors which should be considered to improve such transition from lab to clinic.
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Affiliation(s)
- Katie Glover
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Deepakkumar Mishra
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Shilpkala Gade
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Yu Wu
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Alejandro J Paredes
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
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10
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Wang X, Ma Y, Qi X, Ruan X, Cao D, Zhao F. Practicality of non-invasive glucagon-loaded dissolving microneedle for life-saving treatment of severe hypoglycemia in a diabetic rat model. Int J Pharm 2023; 644:123340. [PMID: 37625601 DOI: 10.1016/j.ijpharm.2023.123340] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 07/30/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023]
Abstract
The development of dissolving microneedles (DMNs) has brought light to the transdermal delivery of biomolecules that are released into the skin through the rapid dissolution of the matrix material to enter the systemic circulation and exert therapeutic effects. Herein, we aimed to prepare, characterize, and analyze the effectiveness of a glucagon-loaded DMN system that rapidly increases blood sugar levels in rats with diabetic hypoglycemia. The stability and content of biological drugs following DMNs preparation was assessed using circular dichroism and bicinchoninic acid kit for protein determination kits(BCA kits). The maximum drug loading capacity of DMNs was approximately 140 μg in each patch, and the microneedles could be stored for up to 14 days under dry storage conditions. In vitro skin permeation studies were conducted using a Franz diffusion cell apparatus for glucagon-loaded DMNs. To investigate the efficacy of transdermal drug delivery, drug-laden DMNs were administered to rats with hypoglycemic diabetes. Compared to subcutaneous injections, microneedle drug release demonstrated comparable efficacy in raising blood glucose levels in vivo. Therefore, this study demonstrated that glucagon-loaded DMNs may be a promising approach for efficient transdermal drug delivery as an alternative to subcutaneous injection for the treatment of severe hypoglycemia in patients with diabetes.
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Affiliation(s)
- Xuejiao Wang
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China
| | - Yinling Ma
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China; National Clinical Drug Monitoring Center, Department of Pharmacy, Hebei Province General Center, Shijiazhuang 050051, China
| | - Xiaodan Qi
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China
| | - Xi Ruan
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China
| | - Deying Cao
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China.
| | - Feng Zhao
- School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, China.
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11
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Wang H, Xu J, Xiang L. Microneedle-Mediated Transcutaneous Immunization: Potential in Nucleic Acid Vaccination. Adv Healthc Mater 2023; 12:e2300339. [PMID: 37115817 DOI: 10.1002/adhm.202300339] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/07/2023] [Indexed: 04/29/2023]
Abstract
Efforts aimed at exploring economical and efficient vaccination have taken center stage to combat frequent epidemics worldwide. Various vaccines have been developed for infectious diseases, among which nucleic acid vaccines have attracted much attention from researchers due to their design flexibility and wide application. However, the lack of an efficient delivery system considerably limits the clinical translation of nucleic acid vaccines. As mass vaccinations via syringes are limited by low patient compliance and high costs, microneedles (MNs), which can achieve painless, cost-effective, and efficient drug delivery, can provide an ideal vaccination strategy. The MNs can break through the stratum corneum barrier in the skin and deliver vaccines to the immune cell-rich epidermis and dermis. In addition, the feasibility of MN-mediated vaccination is demonstrated in both preclinical and clinical studies and has tremendous potential for the delivery of nucleic acid vaccines. In this work, the current status of research on MN vaccines is reviewed. Moreover, the improvements of MN-mediated nucleic acid vaccination are summarized and the challenges of its clinical translation in the future are discussed.
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Affiliation(s)
- Haochen Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Junhua Xu
- Biopharmaceutical Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lin Xiang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
- Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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12
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Dul M, Alali M, Ameri M, Burke MD, Craig CM, Creelman BP, Dick L, Donnelly RF, Eakins MN, Frivold C, Forster AH, Gilbert PA, Henke S, Henry S, Hunt D, Lewis H, Maibach HI, Mistilis JJ, Park JH, Prausnitz MR, Robinson DK, Hernandez CAR, Ross C, Shin J, Speaker TJ, Taylor KM, Zehrung D, Birchall JC, Jarrahian C, Coulman SA. Assessing the risk of a clinically significant infection from a Microneedle Array Patch (MAP) product. J Control Release 2023; 361:236-245. [PMID: 37437849 DOI: 10.1016/j.jconrel.2023.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/28/2023] [Accepted: 07/01/2023] [Indexed: 07/14/2023]
Abstract
Microneedle Array Patches (MAPs) are an emerging dosage form that creates transient micron-sized disruptions in the outermost physical skin barrier, the stratum corneum, to facilitate delivery of active pharmaceutical ingredients to the underlying tissue. Numerous MAP products are proposed and there is significant clinical potential in priority areas such as vaccination. However, since their inception scientists have hypothesized about the risk of a clinically significant MAP-induced infection. Safety data from two major Phase 3 clinical trials involving hundreds of participants, who in total received tens of thousands of MAP applications, does not identify any clinically significant infections. However, the incumbent data set is not extensive enough to make definitive generalizable conclusions. A comprehensive assessment of the infection risk is therefore advised for MAP products, and this should be informed by clinical and pre-clinical data, theoretical analysis and informed opinions. In this article, a group of key stakeholders identify some of the key product- and patient-specific factors that may contribute to the risk of infection from a MAP product and provide expert opinions in the context of guidance from regulatory authorities. Considerations that are particularly pertinent to the MAP dosage form include the specifications of the finished product (e.g. microbial specification), it's design features, the setting for administration, the skill of the administrator, the anatomical application site, the target population and the clinical context. These factors, and others discussed in this article, provide a platform for the development of MAP risk assessments and a stimulus for early and open dialogue between developers, regulatory authorities and other key stakeholders, to expedite and promote development of safe and effective MAP products.
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Affiliation(s)
- Maria Dul
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Howard I Maibach
- Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
| | | | - Jung-Hwan Park
- Department of Bionano Technology, Gachon University, Seongnam, Republic of Korea
| | - Mark R Prausnitz
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | | | | | | | | | | | - Kevin Michael Taylor
- University College London School of Pharmacy, British Pharmacopoeia Commission, UK
| | | | - James C Birchall
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK
| | | | - Sion A Coulman
- Cardiff School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, UK.
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13
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Lv H, Gao N, Zhou Q, Wang Y, Ling G, Zhang P. Collagen-Based Dissolving Microneedles with Flexible Pedestals: A Transdermal Delivery System for Both Anti-Aging and Skin Diseases. Adv Healthc Mater 2023; 12:e2203295. [PMID: 37029522 DOI: 10.1002/adhm.202203295] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/19/2023] [Indexed: 04/09/2023]
Abstract
Biocompatible polymer microneedles (MNs) are emerging as a promising platform for transdermal drug delivery, especially for facial treatments. Therefore, an MN patch in this study uses hydrolyzed collagen (HC) contained in skin cells as the main raw material and adopts a two-step cast method to develop a rapidly dissolving microneedle (DMN) to deliver collagen in a simple and minimally invasive way, allowing the release of the encapsulated drug in the skin. By optimizing the formulation and proportion of HC and auxiliary support materials, the mechanical strength required to pierce the skin is obtained, while the soft pedestal allows for flexibility in application. The DMNs can dissolve completely in the skin within 15 min and release within ≈ 8 h, and do not cause toxicity or irritation when being applied. In contrast to the ineffectiveness of oral and external application, and the high risk of dermal injection, drug-loaded DMNs overcome the drawbacks of traditional methods with direct penetration and minimally invasive manner, enabling efficient and safe treatment. The successful preparation and research of HC DMNs have innovative and practical significance in this field, and it is expected to become a simple, effective, and popular transdermal drug delivery platform for cosmetics.
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Affiliation(s)
- Hongqian Lv
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Nan Gao
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Qixin Zhou
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Yan Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Guixia Ling
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
| | - Peng Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, China
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14
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Fathi-Karkan S, Heidarzadeh M, Narmi MT, Mardi N, Amini H, Saghati S, Abrbekoh FN, Saghebasl S, Rahbarghazi R, Khoshfetrat AB. Exosome-loaded microneedle patches: Promising factor delivery route. Int J Biol Macromol 2023:125232. [PMID: 37302628 DOI: 10.1016/j.ijbiomac.2023.125232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/20/2023] [Accepted: 06/03/2023] [Indexed: 06/13/2023]
Abstract
During the past decades, the advent of different microneedle patch (MNPs) systems paves the way for the targeted and efficient delivery of several growth factors into the injured sites. MNPs consist of several micro-sized (25-1500 μm) needle rows for painless delivery of incorporated therapeutics and increase of regenerative outcomes. Recent data have indicated the multifunctional potential of varied MNP types for clinical applications. Advances in the application of materials and fabrication processes enable researchers and clinicians to apply several MNP types for different purposes such as inflammatory conditions, ischemic disease, metabolic disorders, vaccination, etc. Exosomes (Exos) are one of the most interesting biological bioshuttles that participate in cell-to-cell paracrine interaction with the transfer of signaling biomolecules. These nano-sized particles, ranging from 50 to 150 nm, can exploit several mechanisms to enter the target cells and deliver their cargo into the cytosol. In recent years, both intact and engineered Exos have been increasingly used to accelerate the healing process and restore the function of injured organs. Considering the numerous benefits provided by MNPs, it is logical to hypothesize that the development of MNPs loaded with Exos provides an efficient therapeutic platform for the alleviation of several pathologies. In this review article, the authors collected recent advances in the application of MNP-loaded Exos for therapeutic purposes.
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Affiliation(s)
- Sonia Fathi-Karkan
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Morteza Heidarzadeh
- Koç University Research Center for Translational Medicine (KUTTAM), Rumeli Feneri, 34450 Sariyer, Istanbul, Turkey
| | | | - Narges Mardi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hassan Amini
- Department of General and Vascular Surgery, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Saghati
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Solmaz Saghebasl
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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15
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Fitaihi R, Abukhamees S, Orlu M, Craig DQM. Transscleral Delivery of Dexamethasone-Loaded Microparticles Using a Dissolving Microneedle Array. Pharmaceutics 2023; 15:1622. [PMID: 37376071 DOI: 10.3390/pharmaceutics15061622] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/20/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Microneedles (MNs) have attracted considerable interest as a means of ocular drug delivery, a challenging delivery route due to the limitations imposed by the various biological barriers associated with this organ. In this study, a novel ocular drug delivery system was developed by formulating a dissolvable MN array containing dexamethasone-loaded PLGA microparticles for scleral drug deposition. The microparticles serve as a drug reservoir for controlled transscleral delivery. The MNs displayed sufficient mechanical strength to penetrate the porcine sclera. Dexamethasone (Dex) scleral permeation was significantly higher than in topically instilled dosage forms. The MN system was able to distribute the drug through the ocular globe, with 19.2% of the administered Dex detected in the vitreous humour. Additionally, images of the sectioned sclera confirmed the diffusion of fluorescent-labelled microparticles within the scleral matrix. The system therefore represents a potential approach for minimally invasive Dex delivery to the posterior of the eye, which lends itself to self-administration and hence high patient convenience.
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Affiliation(s)
- Rawan Fitaihi
- Research Department of Pharmaceutics, School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Shorooq Abukhamees
- Research Department of Pharmaceutics, School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Mine Orlu
- Research Department of Pharmaceutics, School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Duncan Q M Craig
- Research Department of Pharmaceutics, School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
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16
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Zhao W, Zheng L, Yang J, Li Y, Zhang Y, Ma T, Wang Q. Dissolving microneedle patches-mediated percutaneous delivery of tetramethylpyrazine for rheumatoid arthritis treatment. Eur J Pharm Sci 2023; 184:106409. [PMID: 36871810 DOI: 10.1016/j.ejps.2023.106409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/28/2023] [Accepted: 02/20/2023] [Indexed: 03/07/2023]
Abstract
Recently, transdermal treatment of rheumatoid arthritis (RA) has received increasing attention due to the advantages of improving patient compliance and avoiding gastrointestinal side effects. However, the stratum corneum (SC) barrier limits the transdermal delivery of most substances. Therefore, we constructed tetramethylpyrazine-loaded dissolving microneedle patches (TMP-DMNPs) and investigated its anti-rheumatoid arthritis effect. The cone-shaped dissolving microneedle patch had complete, neatly arranged needles and great mechanical strength. It could effectively penetrate the stratum corneum when applied to the skin. In vitro transdermal experiment showed that DMNPs could significantly promote the transdermal penetration of TMP compared with TMP-cream. The needles were completely dissolved within 18 min and the applied skin recovered completely within 3 h. The excipients and blank DMNP had good safety and biocompatibility to human rheumatoid arthritis fibroblast synovial cells. To compare the therapeutic effects, the animal model was established. The experiments of paw swelling, histopathology and X-ray examination showed that dissolving microneedles significantly alleviated paw condition, reduced the serum concentrations of proinflammatory cytokines, and inhibited synovial tissue damage in AIA rats. These results indicate that the DMNPs we prepared can deliver TMP safely, effectively and conveniently, providing a basis for the percutaneous treatment of RA.
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Affiliation(s)
- Weiman Zhao
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Lijie Zheng
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Jianhui Yang
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Yingying Li
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Yueyue Zhang
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Tao Ma
- School of Pharmacy, Bengbu Medical College, Bengbu, China; Engineering Research Center for Biochemical Pharmaceuticals of Anhui Province, Bengbu Medical College, Bengbu, China
| | - Qingqing Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, China; Engineering Research Center for Biochemical Pharmaceuticals of Anhui Province, Bengbu Medical College, Bengbu, China.
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17
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Li Y, Zheng L, Cao W, Yang X, Wang Q, Gu X, Liu F, Ma T, Wang X, Wang Q. 5-aminolevulinic acid-loaded dissolving microneedle array for photodynamic therapy of rheumatoid arthritis on rats. Biomed Pharmacother 2023; 162:114684. [PMID: 37058824 DOI: 10.1016/j.biopha.2023.114684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/16/2023] Open
Abstract
Photodynamic therapy (PDT) is a noninvasive technique that can be used to treat rheumatoid arthritis (RA) by irradiating photosensitizers with specific wavelengths of light to generate reactive oxygen species (ROS), thus leading to targeted cell necrosis. However, efficient delivery of photosensitizers with low side effects is a key issue. We developed a 5-aminolevulinic acid-loaded dissolving microneedle array (5-ALA@DMNA) that can locally and efficiently deliver photosensitizers for RA treatment by PDT. 5-ALA@DMNA was fabricated through a two-step molding process, which was characterized. The effects of 5-ALA-mediated PDT on RA fibroblast-like synoviocytes (RA-FLs) were investigated via in vitro experiments. Adjuvant arthritis rat models were established to evaluate the therapeutic effect of 5-ALA@DMNA-mediated PDT on RA. The results showed that 5-ALA@DMNA could penetrate the skin barrier and efficiently deliver photosensitizers. 5-ALA-mediated PDT can significantly inhibit the migration ability and selectively induce apoptosis of RA-FLs. Moreover, 5-ALA-mediated PDT had a significant therapeutic effect on rats with adjuvant arthritis, which may be related to the upregulation of interleukin (IL)- 4 and IL-10 and downregulation of TNF-α, IL-6, and IL-17. Thus, 5-ALA@DMNA-mediated PDT may be a potential therapy for RA.
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Affiliation(s)
- Yingying Li
- School of Pharmacy, Bengbu Medical College, Bengbu, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu Medical College, Bengbu, China
| | - Lijie Zheng
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Wenyu Cao
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Xuejing Yang
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Qiuyue Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Xun Gu
- School of Pharmacy, Bengbu Medical College, Bengbu, China
| | - Fang Liu
- School of Pharmacy, Bengbu Medical College, Bengbu, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu Medical College, Bengbu, China
| | - Tao Ma
- School of Pharmacy, Bengbu Medical College, Bengbu, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu Medical College, Bengbu, China
| | - Xu Wang
- School of Medical Imaging, Bengbu Medical College, Bengbu, China
| | - Qingqing Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, China; Anhui Engineering Technology Research Center of Biochemical Pharmaceutical, Bengbu Medical College, Bengbu, China; Bengbu BBCA Medical Science Co., Ltd., Bengbu, China.
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18
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Cai Y, Xu X, Wu M, Liu J, Feng J, Zhang J. Multifunctional zwitterionic microneedle dressings for accelerated healing of chronic infected wounds in diabetic rat models. Biomater Sci 2023; 11:2750-2758. [PMID: 36876633 DOI: 10.1039/d2bm02101c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Diabetic infected wounds are one of the major threats to public health but traditional wound dressings always have poor therapeutic efficacy influenced by the single treatment principle and limited penetration depth. Herein, we developed a novel kind of multifunctional degradable and removable zwitterionic microneedle dressings that could achieve multi-effective treatment of diabetic chronic wounds with a single dressing application. The substrates of microneedle dressings are composed of zwitterionic polymer polysulfobetaine methacrylate (PSBMA) and photothermal hair particles (HMPs), which can absorb wound exudate, form a barrier to the bacterial environment for the wound and exhibit an excellent photothermal bactericidal effect to promote wound healing. By loading zinc oxide nanoparticles (ZnO NPs) and asiaticoside in needle tips, drugs could diffuse in the wound area as the tips degrade to achieve highly effective antibacterial and anti-inflammatory effects and promote deep wound healing and tissue regeneration. The microneedles (MNs) were applied in diabetic rats with Staphylococcus aureus-infected wounds to demonstrate that the combination of drug and photothermal multi-treatment has accelerated tissue regeneration and collagen deposition and significantly promoted wound healing.
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Affiliation(s)
- Yuqing Cai
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China.
| | - Xiaodong Xu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China.
| | - Minmin Wu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China.
| | - Jiaqi Liu
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China.
| | - Jie Feng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China.
| | - Jing Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, P. R. China.
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19
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Min HS, Kim Y, Nam J, Ahn H, Kim M, Kang G, Jang M, Yang H, Jung H. Shape of dissolving microneedles determines skin penetration ability and efficacy of drug delivery. BIOMATERIALS ADVANCES 2023; 145:213248. [PMID: 36610239 DOI: 10.1016/j.bioadv.2022.213248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/28/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
Dissolving microneedles (DMNs) are used for minimally invasive transdermal drug delivery. Dissolution of drugs is achieved in the body after skin penetration by DMNs. Unlike injections, the insertion depth of the DMN is an important issue because the amount of dissolved DMN in the skin determines the amount of drug delivered. Therefore, the inaccurate drug delivery due to the incomplete insertion is one of the limitations of the DMN. Thus, many insertion and penetration tests have been essentially conducted in DMN studies, yet only incomplete insertion is known and the exact standard for how much it is not inserted is still unknown. Moreover, there are various shapes have been introduced in the microneedle field, there have been only few studies that have compared and evaluated the insertion depth of the shapes. Here, we present an intensive approach for DMN insertion based on DMN shape among various insertion deciding factors. We numerically analyzed the volumetric distribution of three types of DMN shapes: conical-shaped DMN, funnel-shaped DMN, and candlelit-shaped DMN, and introduced a new insertion evaluation criterion while covering previous insertion evaluations. Using optical coherence tomography, the images of DMNs embedded in the skin were analyzed in rea l-time, and the amount of drug delivered was analyzed at sectioned depth with a cryotome. The in vitro data confirmed that the insertion depth differed based on shape, and the resulting drug delivery depended on the volume assigned to the insertion depth. Insulin-loaded DMNs were applied to C57BL/6 mice, and the results of pharmacokinetic and pharmacodynamic analyses supported the results of the in vitro analysis. Our approach, which considers the correlation between DMN shape and insertion depth, will contribute to establishing criteria for various DMN design and maximizing drug delivery.
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Affiliation(s)
- Hye Su Min
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Youseong Kim
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Jeehye Nam
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Hyeri Ahn
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Minkyung Kim
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Geonwoo Kang
- Juvic Inc., 272 Digital-ro, Guro-gu, Seoul 08389, South Korea
| | - Mingyu Jang
- Juvic Inc., 272 Digital-ro, Guro-gu, Seoul 08389, South Korea
| | - Huisuk Yang
- Juvic Inc., 272 Digital-ro, Guro-gu, Seoul 08389, South Korea
| | - Hyungil Jung
- Department of Biotechnology, Building 123, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea; Juvic Inc., 272 Digital-ro, Guro-gu, Seoul 08389, South Korea.
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20
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Zhang L, Du W, Li X, Ling G, Zhang P. Dissolving microneedles based on polysaccharide for dermatological diseases therapy. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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21
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Wang J, Zeng J, Liu Z, Zhou Q, Wang X, Zhao F, Zhang Y, Wang J, Liu M, Du R. Promising Strategies for Transdermal Delivery of Arthritis Drugs: Microneedle Systems. Pharmaceutics 2022; 14:pharmaceutics14081736. [PMID: 36015362 PMCID: PMC9416616 DOI: 10.3390/pharmaceutics14081736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/12/2022] [Accepted: 08/14/2022] [Indexed: 11/16/2022] Open
Abstract
Arthritis is a general term for various types of inflammatory joint diseases. The most common clinical conditions are mainly represented by rheumatoid arthritis and osteoarthritis, which affect more than 4% of people worldwide and seriously limit their mobility. Arthritis medication generally requires long-term application, while conventional administrations by oral delivery or injections may cause gastrointestinal side effects and are inconvenient for patients during long-term application. Emerging microneedle (MN) technology in recent years has created new avenues of transdermal delivery for arthritis drugs due to its advantages of painless skin perforation and efficient local delivery. This review summarizes various types of arthritis and current therapeutic agents. The current development of MNs in the delivery of arthritis drugs is highlighted, demonstrating their capabilities in achieving different drug release profiles through different self-enhancement methods or the incorporation of nanocarriers. Furthermore, the challenges of translating MNs from laboratory studies to the clinical practice and the marketplace are discussed. This promising technology provides a new approach to the current drug delivery paradigm in treating arthritis in transdermal delivery.
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Affiliation(s)
- Jitong Wang
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jia Zeng
- NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Shanghai Engineering Research Center of Reproductive Health Drug and Devices, Shanghai 200032, China
| | - Zhidan Liu
- Department of Rehabilitation, Baoshan Hospital of Integrated Traditional Chinese Medicine and Western Medicine, Shanghai 201999, China
| | - Qin Zhou
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xin Wang
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Fan Zhao
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yu Zhang
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jiamiao Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Minchen Liu
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Correspondence: (M.L.); (R.D.)
| | - Ruofei Du
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Correspondence: (M.L.); (R.D.)
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22
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Drug delivery with dissolving microneedles: Skin puncture, its influencing factors and improvement strategies. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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23
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A 3D-printed transepidermal microprojection array for human skin microbiome sampling. Proc Natl Acad Sci U S A 2022; 119:e2203556119. [PMID: 35867832 PMCID: PMC9335308 DOI: 10.1073/pnas.2203556119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Skin microbiome sampling is currently performed with tools such as swabs and tape strips to collect microbes from the skin surface. However, these conventional approaches may be unable to detect microbes deeper in the epidermis or in epidermal invaginations. We describe a sampling tool with a depth component, a transepidermal microprojection array (MPA), which captures microbial biomass from both the epidermal surface and deeper skin layers. We leveraged the rapid customizability of 3D printing to enable systematic optimization of MPA for human skin sampling. Evaluation of sampling efficacy on human scalp revealed the optimized MPA was comparable in sensitivity to swab and superior to tape strip, especially for nonstandard skin surfaces. We observed differences in species diversity, with the MPA detecting clinically relevant fungi more often than other approaches. This work delivers a tool in the complex field of skin microbiome sampling to potentially address gaps in our understanding of its role in health and disease.
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24
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Ali M, Namjoshi S, Benson HAE, Mohammed Y, Kumeria T. Dissolvable polymer microneedles for drug delivery and diagnostics. J Control Release 2022; 347:561-589. [PMID: 35525331 DOI: 10.1016/j.jconrel.2022.04.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
Abstract
Dissolvable transdermal microneedles (μND) are promising micro-devices used to transport a wide selection of active compounds into the skin. To provide an effective therapeutic outcome, μNDs must pierce the human stratum corneum (~10 to 20 μm), without rupturing or bending during penetration, then release their cargo at the predetermined area and time. The ability of dissolvable μND arrays/patches to sufficiently pierce the skin is a crucial requirement, which depends on the material composition, μND geometry and fabrication techniques. This comprehensive review not only provides contemporary knowledge on the μND design approaches, but also the materials science facilitating these delivery systems and the opportunities these advanced materials can provide to enhance clinical outcomes.
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Affiliation(s)
- Masood Ali
- Therapeutics Research Group, The University of Queensland Diamantina Institute, Faculty of Medicine, University of Queensland, Brisbane, QLD 4102, Australia
| | - Sarika Namjoshi
- Therapeutics Research Group, The University of Queensland Diamantina Institute, Faculty of Medicine, University of Queensland, Brisbane, QLD 4102, Australia; Vaxxas Pty Ltd, Brisbane, Woolloongabba, QLD 4102, Australia
| | - Heather A E Benson
- Curtin Medical School, Curtin University, Bentley, WA 6102, Australia; UniSA Clinical and Health Sciences, University of South Australia, Adelaide, SA 5001, Australia; Basil Hetzel institute for Translational Health Research, Adelaide, SA 5001, Australia.
| | - Yousuf Mohammed
- Therapeutics Research Group, The University of Queensland Diamantina Institute, Faculty of Medicine, University of Queensland, Brisbane, QLD 4102, Australia.
| | - Tushar Kumeria
- School of Materials Science and Engineering, The University of New South Wales, Sydney. NSW 2052, Australia; Australian Centre for Nanomedicine, The University of New South Wales, Sydney, NSW 2052, Australia; School of Pharmacy, The University of Queensland, Brisbane, QLD 4102, Australia.
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25
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Wei F, Wang Q, Liu H, Yang X, Cao W, Zhao W, Li Y, Zheng L, Ma T, Wang Q. High Efficacy Combined Microneedles Array with Methotrexate Nanocrystals for Effective Anti-Rheumatoid Arthritis. Int J Nanomedicine 2022; 17:2397-2412. [PMID: 35637840 PMCID: PMC9148202 DOI: 10.2147/ijn.s365523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/13/2022] [Indexed: 11/23/2022] Open
Abstract
Introduction Methotrexate (MTX) is the first-line drug for the treatment of rheumatoid arthritis (RA) in several countries. However, MTX has an extremely low solubility in water, and the side effects caused by its delivery mode restrict its curative effect. In this study, we designed a dissolving microneedles array (DMNA) containing MTX nanocrystals (MTX-NCs) (MTX-NC@DMNA) to improve the treatment of RA. DMNA-based drug delivery combines the advantages of patient compliance with the use of transdermal drug delivery systems and high-efficiency injection administration; thus, it can mitigate the side effects that result from current administration routes. Carrier-free and surfactant-free MTX-NCs were prepared to overcome bioavailability limitations and poor drug loading problems. Methods The MTX-NCs prepared by reverse solvent precipitation method was encapsulated in the DMNA. The morphology, mechanical properties, safety, stability and in vivo dissolution were evaluated, and its pharmacodynamic characteristics were assessed in a rat model of RA. Results The particle size of the MTX-NCs was 148.1 ± 10.1 nm. The MTX-NC@DMNA were found to be rigid enough to penetrate the skin and deliver the drug successfully. The results indicated effective skin recovery after removal of the DMNA. It was found that the MTX-NC@DMNA significantly reduced foot swelling in the rats and regulated the balance in the levels of related cytokines. It also reduced pathological damage to the synovium, joint, and cartilage, and effectively alleviated organ injury in the rats. Conclusion Transdermal administration of MTX-NC@DMNA may be an effective approach for treating RA.
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Affiliation(s)
- Fang Wei
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Qiuyue Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Hang Liu
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Xuejing Yang
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Wenyu Cao
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Weiman Zhao
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Yingying Li
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Lijie Zheng
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Tao Ma
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China.,Engineering Research Center for Biochemical Pharmaceuticals of Anhui Province, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China
| | - Qingqing Wang
- School of Pharmacy, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China.,Engineering Research Center for Biochemical Pharmaceuticals of Anhui Province, Bengbu Medical College, Bengbu, Anhui Province, 233030, People's Republic of China.,Bengbu BBCA Medical Science Co., Ltd., Bengbu, Anhui Province, 233030, People's Republic of China
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26
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Mansoor I, Eassa HA, Mohammed KHA, Abd El-Fattah MA, Abdo MH, Rashad E, Eassa HA, Saleh A, Amin OM, Nounou MI, Ghoneim O. Microneedle-Based Vaccine Delivery: Review of an Emerging Technology. AAPS PharmSciTech 2022; 23:103. [PMID: 35381906 PMCID: PMC8982652 DOI: 10.1208/s12249-022-02250-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 03/06/2022] [Indexed: 12/23/2022] Open
Abstract
Vaccination has produced a great improvement to the global health by decreasing/eradicating many infectious diseases responsible for significant morbidity and mortality. Thanks to vaccines, many infections affecting childhood have been greatly decreased or even eradicated (smallpox, measles, and polio). That is why great efforts are made to achieve mass vaccination against COVID-19. However, developed vaccines face many challenges with regard to their safety and stability. Moreover, needle phobia could prevent a significant proportion of the population from receiving vaccines. In this context, microneedles (MNs) could potentially present a solution to address these challenges. MNs represent single dose administration systems that do not need reconstitution or cold-chain storage. Being self-administered, pain-free, and capable of producing superior immunogenicity makes them a more attractive alternative. This review explores microneedles’ types, safety, and efficacy in vaccine delivery. Preclinical and clinical studies for microneedle-based vaccines are discussed and patent examples are included.
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27
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Avcil M, Çelik A. Microneedles in Drug Delivery: Progress and Challenges. MICROMACHINES 2021; 12:mi12111321. [PMID: 34832733 PMCID: PMC8623547 DOI: 10.3390/mi12111321] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/20/2021] [Accepted: 10/24/2021] [Indexed: 01/21/2023]
Abstract
In recent years, an innovative transdermal delivery technology has attracted great interest for its ability to distribute therapeutics and cosmeceuticals for several applications, including vaccines, drugs, and biomolecules for skin-related problems. The advantages of microneedle patch technology have been extensively evaluated in the latest literature; hence, the academic publications in this area are rising exponentially. Like all new technologies, the microneedle patch application has great potential but is not without limitations. In this review, we will discuss the possible limitations by highlighting the areas where a great deal of improvements are required. Emphasising these concerns early on should help scientists and technologists to address the matters in a timely fashion and to use their resources wisely.
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28
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Yadav PR, Munni MN, Campbell L, Mostofa G, Dobson L, Shittu M, Pattanayek SK, Uddin MJ, Das DB. Translation of Polymeric Microneedles for Treatment of Human Diseases: Recent Trends, Progress, and Challenges. Pharmaceutics 2021; 13:1132. [PMID: 34452093 PMCID: PMC8401662 DOI: 10.3390/pharmaceutics13081132] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/17/2021] [Accepted: 07/20/2021] [Indexed: 12/14/2022] Open
Abstract
The ongoing search for biodegradable and biocompatible microneedles (MNs) that are strong enough to penetrate skin barriers, easy to prepare, and can be translated for clinical use continues. As such, this review paper is focused upon discussing the key points (e.g., choice polymeric MNs) for the translation of MNs from laboratory to clinical practice. The review reveals that polymers are most appropriately used for dissolvable and swellable MNs due to their wide range of tunable properties and that natural polymers are an ideal material choice as they structurally mimic native cellular environments. It has also been concluded that natural and synthetic polymer combinations are useful as polymers usually lack mechanical strength, stability, or other desired properties for the fabrication and insertion of MNs. This review evaluates fabrication methods and materials choice, disease and health conditions, clinical challenges, and the future of MNs in public healthcare services, focusing on literature from the last decade.
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Affiliation(s)
- Prateek Ranjan Yadav
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (P.R.Y.); (L.C.); (L.D.); (M.S.)
- Chemical Engineering Department, Indian Institute of Technology, Delhi 110016, India;
| | | | - Lauryn Campbell
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (P.R.Y.); (L.C.); (L.D.); (M.S.)
| | - Golam Mostofa
- Drug Delivery & Therapeutics Lab, Dhaka 1212, Bangladesh; (M.N.M.); (G.M.)
| | - Lewis Dobson
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (P.R.Y.); (L.C.); (L.D.); (M.S.)
| | - Morayo Shittu
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (P.R.Y.); (L.C.); (L.D.); (M.S.)
| | | | - Md. Jasim Uddin
- Drug Delivery & Therapeutics Lab, Dhaka 1212, Bangladesh; (M.N.M.); (G.M.)
- Department of Pharmacy, Brac University, 66 Mohakhali, Dhaka 1212, Bangladesh
| | - Diganta Bhusan Das
- Department of Chemical Engineering, Loughborough University, Loughborough LE11 3TU, UK; (P.R.Y.); (L.C.); (L.D.); (M.S.)
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29
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Optimization of Layered Dissolving Microneedle for Sustained Drug Delivery Using Heat-Melted Poly(Lactic-Co-glycolic Acid). Pharmaceutics 2021; 13:pharmaceutics13071058. [PMID: 34371749 PMCID: PMC8309023 DOI: 10.3390/pharmaceutics13071058] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/05/2021] [Accepted: 07/07/2021] [Indexed: 11/17/2022] Open
Abstract
Dissolving microneedles (DMNs) have been used as an alternative drug delivery system to deliver therapeutics across the skin barrier in a painless manner. In this study, we propose a novel heat-melting method for the fabrication of hydrophobic poly(lactic-co-glycolic acid) (PLGA) DMNs, without the use of potentially harmful organic solvents. The drug-loaded PLGA mixture, which consisted of a middle layer of the DMN, was optimized and successfully implanted into ex vivo porcine skin. Implanted HMP-DMNs separated from the patch within 10 min, enhancing user compliance, and the encapsulated molecules were released for nearly 4 weeks thereafter. In conclusion, the geometry of HMP-DMNs was successfully optimized for safe and effective transdermal sustained drug delivery without the use of organic solvents. This study provides a strategy for the innovative utilization of PLGA as a material for transdermal drug delivery systems.
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30
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Zhang L, Guo R, Wang S, Yang X, Ling G, Zhang P. Fabrication, evaluation and applications of dissolving microneedles. Int J Pharm 2021; 604:120749. [PMID: 34051319 DOI: 10.1016/j.ijpharm.2021.120749] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 01/25/2023]
Abstract
In recent years, transdermal preparations have emerged as one of the most promising modes of administration. In particular, dissolving microneedles have attracted extensive attention because of their painlessness, safety, high delivery efficiency and easily operation for patients. This article mainly reviews the preparation methods, the types of matrix polymer materials, the content of dissolving microneedles performance testing, and the applications of dissolving microneedles. It is expected to lay a solid knowledge foundation for the in-depth study of the dissolving microneedles.
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Affiliation(s)
- Lijing Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Ranran Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Siqi Wang
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Xiaotong Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Guixia Ling
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
| | - Peng Zhang
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
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31
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Makvandi P, Kirkby M, Hutton ARJ, Shabani M, Yiu CKY, Baghbantaraghdari Z, Jamaledin R, Carlotti M, Mazzolai B, Mattoli V, Donnelly RF. Engineering Microneedle Patches for Improved Penetration: Analysis, Skin Models and Factors Affecting Needle Insertion. NANO-MICRO LETTERS 2021; 13:93. [PMID: 34138349 PMCID: PMC8006208 DOI: 10.1007/s40820-021-00611-9] [Citation(s) in RCA: 126] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 01/05/2021] [Indexed: 05/14/2023]
Abstract
Transdermal microneedle (MN) patches are a promising tool used to transport a wide variety of active compounds into the skin. To serve as a substitute for common hypodermic needles, MNs must pierce the human stratum corneum (~ 10 to 20 µm), without rupturing or bending during penetration. This ensures that the cargo is released at the predetermined place and time. Therefore, the ability of MN patches to sufficiently pierce the skin is a crucial requirement. In the current review, the pain signal and its management during application of MNs and typical hypodermic needles are presented and compared. This is followed by a discussion on mechanical analysis and skin models used for insertion tests before application to clinical practice. Factors that affect insertion (e.g., geometry, material composition and cross-linking of MNs), along with recent advancements in developed strategies (e.g., insertion responsive patches and 3D printed biomimetic MNs using two-photon lithography) to improve the skin penetration are highlighted to provide a backdrop for future research.
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Affiliation(s)
- Pooyan Makvandi
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy.
| | - Melissa Kirkby
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Aaron R J Hutton
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - Majid Shabani
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
- The BioRobotics Institute, Scuola Superiore Sant'Anna, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Cynthia K Y Yiu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Zahra Baghbantaraghdari
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125, Naples, Italy
| | - Rezvan Jamaledin
- Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, 80125, Naples, Italy
- Center for Advanced Biomaterials for Health Care (iit@CRIB), Italian Institute of Technology, 80125, Naples, Italy
| | - Marco Carlotti
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Barbara Mazzolai
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy
| | - Virgilio Mattoli
- Istituto Italiano Di Tecnologia, Centre for Materials Interface, Viale Rinaldo Piaggio 34, 56025, Pontedera, Pisa, Italy.
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7BL, UK.
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32
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Wang YS, Yang WH, Gao W, Zhang L, Wei F, Liu H, Wang SY, Li YY, Zhao WM, Ma T, Wang Q. Combination and efficiency: preparation of dissolving microneedles array loaded with two active ingredients and its anti-pigmentation effects on guinea pigs. Eur J Pharm Sci 2021; 160:105749. [PMID: 33581260 DOI: 10.1016/j.ejps.2021.105749] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/26/2021] [Accepted: 02/06/2021] [Indexed: 11/30/2022]
Abstract
Hyperpigmentation is a common skin disorder caused by excessive melanogenesis and uneven dispersion of melanin in the skin. To combine multiple active agents with an efficient transdermal drug delivery system is an effective strategy to combat UV induced skin pigmentation. In this work, Arbutin (Arb) and Vitamin C (Vc) mixed in 1:1 were found to have the greatest inhibition effects on melanogenesis and tyrosinase activity in B16 murine melanoma cells. And hyaluronic acid (HA) based dissolving microneedles array (DMNA) was employed to overcome the skin barriers for improved topical drug delivery, which exhibited the most desirable features, including morphology, mechanical properties, dissolving ability, and the highest drug loading. Furthermore, DMNA could greatly increase the stability of Vc during storage without adding any antioxidant which is an important issue for Vc administration. Pharmacodynamics study showed that DMNA loaded with Arb and Vc could synergistically suppress UVB-induced hyperpigmentation in guinea pig skin. This work provides a promising treatment strategy and solution for skin pigmentation and other skin problems.
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Affiliation(s)
- Yu-Shuai Wang
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Wei-Han Yang
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Wei Gao
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Lu Zhang
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Fang Wei
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Hang Liu
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Shu-Ya Wang
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Ying-Ying Li
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Wei-Man Zhao
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Tao Ma
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China
| | - Qingqing Wang
- Faculty of Pharmacy, Bengbu Medical College, 2600 Donghai Avenue, Bengbu 233030, China.
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