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Shao J, Li X, Li Y, Lin J, Huang P. Self-Heating Multistage Microneedle Patch for Topical Therapy of Skin Cancer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308217. [PMID: 38198412 DOI: 10.1002/adma.202308217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/15/2023] [Indexed: 01/12/2024]
Abstract
Topical therapy is a favored route for treating skin cancers, but remain many challenges, such as low delivery efficiency, limited tumor tissue penetration, and unsatisfactory blood circulation. Here, a self-heating microneedle (MN) patch with multilevel structures, including a dissolvable base for rapid drug release, a degradable tip for sustained drug release, and a self-heating substrate is described. The thermally enhanced drug release performance is validated through both in vitro and in vivo experiments. High tumor therapeutic efficacy can be achieved due to the rapid release of 5-fluorouracil, while the sustained release of thymoquinone endows the MN patch with long-term tumor inhibition ability. It is further demonstrated the feasibility of such an MN patch for in vivo topical therapy of cutaneous squamous cell carcinoma with high efficacy, low side effects, and long-term inhibition of recurrence. This self-heating MN patch holds great promise for potential clinical applications, especially for the treatment of skin cancers.
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Affiliation(s)
- Jundong Shao
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xingxing Li
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yashi Li
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Jing Lin
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Peng Huang
- Marshall Laboratory of Biomedical Engineering, International Cancer Center, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, P. R. China
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Ono N, Iibuchi T, Todo H, Itakura S, Adachi H, Sugibayashi K. Enhancement of skin permeation of fluorescein isothiocyanate-dextran 4 kDa (FD4) and insulin by thermalporation. Eur J Pharm Sci 2021; 170:106096. [PMID: 34929301 DOI: 10.1016/j.ejps.2021.106096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/18/2021] [Accepted: 12/09/2021] [Indexed: 11/03/2022]
Abstract
Thermalporation has gained attention as a physical means to enhance skin permeation by creating micropores in the primary skin barrier, stratum corneum, which allows much higher permeation of middle and high molecular weight biopharmaceuticals. In the present study, a PassPort® system (PS) was used as a thermalporation device, and the obtained change in permeation resistance of drugs was evaluated using a parallel skin permeation-resistance model. In addition, the blood concentration-time profile after topical application of insulin was also investigated with the PS treatment. Fluorescein isothiocyanate-dextran (FD-4) and insulin were used as model middle molecular weight drugs. Micropores created by the PS treatment were measured using an optical microscope. An in vitro skin permeation and an in vivo pharmacokinetics experiments were done with FD-4 and insulin, respectively. Barrier function recovery after the PS treatment was evaluated with changes in the electrical skin resistance. About 960-fold higher skin permeation of FD-4 was observed by PSs treatment (4 milliseconds (ms), 200 micropores/cm2). A gradually increased blood concentration of insulin was observed by the PSs treatment, and the relative bioavailability of insulin was 21.1% compared with subcutaneous injection. Skin resistance value was dramatically decreased immediately after the PS treatment, but its value was turned into the initial one by 12 h. The thermalporation is effective for improving skin permeation of FD-4 and transdermal absorption of insulin. These results suggested that the PS treatment may be utilized to increase the skin permeation of topically applied FD-4 and insulin.
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Affiliation(s)
- Naoto Ono
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Tomoya Iibuchi
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Hiroaki Todo
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan.
| | - Shoko Itakura
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Hirotoshi Adachi
- PassPort Technologies, Inc., 5580 Morehouse Drive, Suite 120, San Diego, CA 92121, USA
| | - Kenji Sugibayashi
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
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Parhi R, Mandru A. Enhancement of skin permeability with thermal ablation techniques: concept to commercial products. Drug Deliv Transl Res 2020; 11:817-841. [PMID: 32696221 PMCID: PMC7372979 DOI: 10.1007/s13346-020-00823-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Traditionally, the skin is considered as a protective barrier which acts as a highly impermeable region of the human body. But in recent times, it is recognized as a specialized organ that aids in the delivery of a wide range of drug molecules into the skin (intradermal drug delivery) and across the skin into systemic circulation (transdermal drug delivery, TDD). The bioavailability of a drug administered transdermally can be improved by several penetration enhancement techniques, which are broadly classified into chemical and physical techniques. Application of mentioned techniques together with efforts of various scientific and innovative companies had made TDD a multibillion dollar market and an average of 2.6 new transdermal drugs are being approved each year. Out of various techniques, the thermal ablation techniques involving chemicals, heating elements, lasers, and radiofrequency (RF) are proved to be more effective in terms of delivering the drug across the skin by disrupting the stratum corneum (SC). The reason behind it is that the thermal ablation technique resulted in improved bioavailability, quick treatment and fast recovery of the SC, and more importantly it does not cause any damage to underlying dermis layer. This review article mainly discussed about various thermal ablation techniques with commercial products and patents in each classes, and their safety aspects. This review also briefly presented anatomy of the skin, penetration pathways across the skin, and different generations of TDD. Graphical abstract ![]()
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Affiliation(s)
- Rabinarayan Parhi
- Department of Pharmaceutical Sciences, Susruta School of Medical and Paramedical Sciences, Assam University (A Central University), Silchar, Assam, 788011, India.
| | - Aishwarya Mandru
- GITAM Institute of Pharmacy, Gandhi Institute of Technology and Management (GITAM), Deemed to be University, Gandhi Nagar Campus, Rushikonda, Visakhapatnam, Andhra Pradesh, 530045, India
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Caserta F, Brown MB, McAuley WJ. The use of heat and chemical penetration enhancers to increase the follicular delivery of erythromycin to the skin. Eur J Pharm Sci 2019; 132:55-62. [PMID: 30797027 DOI: 10.1016/j.ejps.2019.02.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/30/2019] [Accepted: 02/19/2019] [Indexed: 01/21/2023]
Abstract
The effect of heat on the follicular absorption of drugs into the skin has not previously been investigated. In comparison to drug delivery across the continuous stratum corneum (SC), follicular absorption is known to be relatively rapid and therefore the use of short durations of heat may be particularly useful for enhancing drug delivery to the hair follicles, as well as being practical for patients to use. In this study erythromycin has been used as a model drug and the combined use of heat and chemical penetration enhancers was found to be able to synergistically increase the penetration of erythromycin into human skin via the follicular route. Moreover durations of heat application as short as 10 min in combination with particular enhancer systems were found to be sufficient to significantly increase erythromycin delivery to the skin. Overall the data indicate that the use of heat with chemical penetration enhancers offers a potentially valuable strategy for delivering drugs via the follicular route.
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Affiliation(s)
- F Caserta
- Centre for Research in Topical Drug Delivery and Toxicology, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK
| | - M B Brown
- Centre for Research in Topical Drug Delivery and Toxicology, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK; MedPharm Ltd., Unit 3 Chancellor Court, 50 Occam Road, Surrey Research Park, Guildford GU2 7AB, UK
| | - W J McAuley
- Centre for Research in Topical Drug Delivery and Toxicology, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK.
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Shahzad Y, Louw R, Gerber M, du Plessis J. Breaching the skin barrier through temperature modulations. J Control Release 2015; 202:1-13. [DOI: 10.1016/j.jconrel.2015.01.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 01/16/2015] [Accepted: 01/19/2015] [Indexed: 02/05/2023]
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Otto DP, de Villiers MM. The experimental evaluation and molecular dynamics simulation of a heat-enhanced transdermal delivery system. AAPS PharmSciTech 2013; 14:111-20. [PMID: 23229382 DOI: 10.1208/s12249-012-9900-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 11/20/2012] [Indexed: 11/30/2022] Open
Abstract
Transdermal delivery systems are useful in cases where preferred routes such as the oral route are not available. However, low overall extent of delivery is seen due to the permeation barrier posed by the skin. Chemical penetration enhancers and invasive methods that disturb the structural barrier function of the skin can be used to improve transdermal drug delivery. However, for suitable drugs, a fast-releasing transdermal delivery system can be produced by incorporating a heating source into a transdermal patch. In this study, a molecular dynamics simulation showed that heat increased the diffusivity of the drug molecules, resulting in faster release from gels containing ketoprofen, diclofenac sodium, and lidocaine HCl. Simulations were confirmed by in vitro drug release studies through lipophilic membranes. These correlations could expand the application of heated transdermal delivery systems for use as fast-release-dosage forms.
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