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Jiang X, Jin Y, Zeng Y, Shi P, Li W. Self-Implantable Core-Shell Microneedle Patch for Long-Acting Treatment of Keratitis via Programmed Drug Release. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310461. [PMID: 38396201 DOI: 10.1002/smll.202310461] [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: 11/15/2023] [Revised: 01/20/2024] [Indexed: 02/25/2024]
Abstract
Bacteria-induced keratitis is a major cause of corneal blindness in both developed and developing countries. Instillation of antibiotic eyedrops is the most common management of bacterial keratitis but usually suffers from low bioavailability (i.e., <5%) and frequent administration, due to the existence of corneal epithelial barrier that prevents large and hydrophilic drug molecules from entering the cornea, and the tear film on corneal surface that rapidly washes drug away from the cornea. Here, a self-implantable core-shell microneedle (MN) patch with programmed drug release property to facilitate bacterial keratitis treatment is reported. The pH-responsive antimicrobial nanoparticles (NPs), Ag@ZIF-8, which are capable of producing antibacterial metal ions in the infected cornea and generating oxidative stress in bacteria, are loaded in the dissolvable core, while the anti-angiogenic drug, rapamycin (Rapa), is encapsulated in the biodegradable shell, thereby enabling rapid release of Ag@ZIF-8 NPs and sustained release of Rapa after corneal insertion. Owing to the programmed release feature, one single administration of the core-shell MN patch in a rat model of bacterial keratitis, can achieve satisfactory antimicrobial activity and superior anti-angiogenic and anti-inflammation effects as compared to daily topical eyedrops, indicating a great potential for the infectious keratitis therapy in clinics.
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Affiliation(s)
- Xue Jiang
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yinli Jin
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yongnian Zeng
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Peng Shi
- Department of Biomedical Engineering, The City University of Hong Kong, Kowloon, Hong Kong SAR, 999077, China
| | - Wei Li
- Department of Thyroid and Breast Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
- TaiKang Center for Life and Medical Sciences, Wuhan University, Wuhan, 430071, China
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Berger MN, Davies C, Mathieu E, Shaban RZ, Bag S, Skinner SR. Developing and validating a scale to measure the perceptions of safety, usability and acceptability of microarray patches for vaccination: a study protocol. Ther Adv Vaccines Immunother 2024; 12:25151355241263560. [PMID: 39044997 PMCID: PMC11265248 DOI: 10.1177/25151355241263560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 06/04/2024] [Indexed: 07/25/2024] Open
Abstract
Background Vaccination is a fundamental tenet of public and population health. Several barriers to vaccine uptake exist, exacerbated post-COVID-19, including misconceptions about vaccine efficacy and safety, vaccine hesitancy, vaccine inequity, costs, religious beliefs, and insufficient education and guidance for healthcare professionals. Vaccine uptake may be aided using microarray patches (MAPs) due to reduced pain, no hypodermic needle, enhanced thermostability, and potential for self and lay administration. Objectives This protocol outlines the development of a scale that aims to accurately measure the perceived safety, usability, and acceptability of MAPs for vaccination among laypeople, MAP recipients, clinicians, and parents or guardians of children. Methods and analysis This study will follow three phases of scale development and validation, including (1) item development, (2) scale development, and (3) scale evaluation. Inductive (interviews) and deductive methods (literature searches) will be used to develop scale items, which experts from target populations will assess through an online survey. Cognitive interviews will be conducted to observe their processes of answering the draft survey. Thematic analysis will be conducted to analyse qualitative data. Lastly, four surveys will be administered online to our target populations over two time points to determine their repeatability. Exploratory and confirmatory factor analyses, Cronbach's alpha, and construct validity will be performed. Ethics This study was approved by Metro South Health (HREC/2021/QMS/81653) and Western Sydney Local Health District (2023/ETH00705) Human Research Ethics Committees. Discussion The scale will support a standardised approach to assessing the social and behavioural aspects of MAP vaccines, enabling comparison of outcomes across studies. Once validated, this scale will assist vaccination programmes in developing effective strategies for integrating MAPs and overcoming barriers to vaccination. This includes improving vaccine equity and accessibility, especially in lower- and middle-income countries and rural or remote locations.
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Affiliation(s)
- Matthew N. Berger
- Children’s Hospital Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, NSW, Australia
- Centre for Population Health, Western Sydney Local Health District, Gungurra, Building 68, Cumberland Hospital Campus, Fleet Street, North Parramatta, NSW 2151, Australia
- Sydney Infectious Diseases Institute, The University of Sydney, Sydney, NSW, Australia
| | - Cristyn Davies
- Children’s Hospital Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, NSW, Australia
- Sydney Infectious Diseases Institute, The University of Sydney, Sydney, NSW, Australia
| | - Erin Mathieu
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Ramon Z. Shaban
- Centre for Population Health, Western Sydney Local Health District, North Parramatta, NSW, Australia
- Sydney Infectious Diseases Institute, The University of Sydney, Sydney, NSW, Australia
- Susan Wakil School of Nursing and Midwifery, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, Australia
- New South Wales Biocontainment Centre, Western Sydney Local Health District and New South Wales Health, Camperdown, NSW, Australia
| | - Shopna Bag
- Centre for Population Health, Western Sydney Local Health District, North Parramatta, NSW, Australia
- Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - S. Rachel Skinner
- Children’s Hospital Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, NSW, Australia
- Sydney Infectious Diseases Institute, The University of Sydney, Sydney, NSW, Australia
- Kids Research, Children’s Hospital Westmead, Sydney Children’s Hospitals Network, Westmead, NSW, Australia
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Yang B, He A, Bu BB, Zhuo G, Zhou QZ, He JH, Liu L, Huang WL, Zhao X. Clinical efficacy of intradermal type I collagen injections in treating skin photoaging in patients from high-altitude areas. World J Clin Cases 2024; 12:2713-2721. [PMID: 38899303 PMCID: PMC11185327 DOI: 10.12998/wjcc.v12.i16.2713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND Photoaging, a result of chronic sun exposure, leads to skin damage and pigmentation changes. Traditional treatments may have limitations in high-altitude areas like Yunnan Province. Intradermal Col Ι injections stimulate collagen production, potentially improving skin quality. This study aims to assess the efficacy and safety of this treatment for photoaging. AIM To evaluate the efficacy and safety of intradermal type Ι collagen (Col Ι) injection for treating photoaging. METHODS This prospective, self-controlled study investigated the impact of intradermal injections of Col Ι on skin photodamage in 20 patients from the Yunnan Province. Total six treatment sessions were conducted every 4 wk ± 3 d. Before and after each treatment, facial skin characteristics were quantified using a VISIA skin detector. Skin thickness data were assessed using the ultrasound probes of the Dermalab skin detector. The Face-Q scale was used for subjective evaluation of the treatment effect by the patients. RESULTS The skin thickness of the right cheek consistently increased after each treatment session compared with baseline. The skin thickness of the left cheek significantly increased after the third through sixth treatment sessions compared with baseline. The skin thickness of the right zygomatic region increased after the second to sixth treatment sessions, whereas that of the left zygomatic region showed a significant increase after the fourth through sixth treatment sessions. The skin thickness of both temporal regions significantly increased after the fifth and sixth treatment sessions compared with baseline (P < 0.05). These findings were also supported by skin ultrasound images. The feature count for the red areas and wrinkle feature count decreased following the treatment (P < 0.05). VISIA assessments also revealed a decrease in the red areas after treatment. The Face-Q-Satisfaction with Facial Appearance Overall and Face-Q-Satisfaction with Skin scores significantly increased after each treatment session. The overall appearance of the patients improved after treatment. CONCLUSION Intradermal Col Ι injection improves photoaging, with higher patient satisfaction and fewer adverse reactions, and could be an effective treatment method for populations residing in high-altitude areas.
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Affiliation(s)
- Bin Yang
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
| | - Ao He
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
| | - Bin-Bin Bu
- Department of Dermatology, The People's Hospital of Chuxiong Yi Autonomous Prefecture, Chuxiong Yi Autonomous Prefecture 675099, Yunnan Province, China
| | - Gong Zhuo
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
| | - Qing-Zhu Zhou
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
| | - Jia-Hang He
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
| | - Liu Liu
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
| | - Wen-Li Huang
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
| | - Xian Zhao
- Department of Plastic and Cosmetic Surgery, The Affiliated Calmette Hospital of Kunming Medical University, The First People's Hospital of Kunming, Calmette Hospital Kunming, Kunming 650224, Yunnan Province, China
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Berger MN, Mowbray ES, Farag MWA, Mathieu E, Davies C, Thomas C, Booy R, Forster AH, Skinner SR. Immunogenicity, safety, usability and acceptability of microarray patches for vaccination: a systematic review and meta-analysis. BMJ Glob Health 2023; 8:e012247. [PMID: 37827725 PMCID: PMC10583062 DOI: 10.1136/bmjgh-2023-012247] [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: 03/09/2023] [Accepted: 09/10/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Microarray patches (MAPs) deliver vaccines to the epidermis and the upper dermis, where abundant immune cells reside. There are several potential benefits to using MAPs, including reduced sharps risk, thermostability, no need for reconstitution, tolerability and self-administration. We aimed to explore and evaluate the immunogenicity, safety, usability and acceptability of MAPs for vaccination. METHODS We searched CINAHL, Cochrane Library, Ovid Embase, Ovid MEDLINE and Web of Science from inception to January 2023. Eligibility criteria included all research studies in any language, which examined microarrays or microneedles intended or used for vaccination and explored immunogenicity, safety, usability or acceptability in their findings. Two reviewers conducted title and abstract screening, full-text reviewing and data extraction. RESULTS Twenty-two studies were included (quantitative=15, qualitative=2 and mixed methods=5). The risk of bias was mostly low, with two studies at high risk of bias. Four clinical trials were included, three using influenza antigens and one with Japanese encephalitis delivered by MAP. A meta-analysis indicated similar or higher immunogenicity in influenza MAPs compared with needle and syringe (N&S) (standardised mean difference=10.80, 95% CI: 3.51 to 18.08, p<0.00001). There were no significant differences in immune cell function between MAPs and N&S. No serious adverse events were reported in MAPs. Erythema was more common after MAP application than N&S but was brief and well tolerated. Lower pain scores were usually reported after MAP application than N&S. Most studies found MAPs easy to use and highly acceptable among healthcare professionals, laypeople and parents. CONCLUSION MAPs for vaccination were safe and well tolerated and evoked similar or enhanced immunogenicity than N&S, but further research is needed. Vaccine uptake may be increased using MAPs due to less pain, enhanced thermostability, layperson and self-administration. MAPs could benefit at-risk groups and low and middle-income countries. PROSPERO REGISTRATION NUMBER CRD42022323026.
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Affiliation(s)
- Matthew N Berger
- Specialty of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Westmead, New South Wales, Australia
- Centre for Population Health, Western Sydney Local Health District, North Parramatta, New South Wales, Australia
- Sydney Infectious Diseases Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Ellen S Mowbray
- Specialty of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Westmead, New South Wales, Australia
| | - Marian W A Farag
- Hillarys Plaza Medical Centre, Perth, Western Australia, Australia
| | - Erin Mathieu
- School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Cristyn Davies
- Specialty of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Westmead, New South Wales, Australia
- Sydney Infectious Diseases Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Claire Thomas
- Centre for Population Health, Western Sydney Local Health District, North Parramatta, New South Wales, Australia
| | - Robert Booy
- Sydney Infectious Diseases Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
- Children's Hospital Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, New South Wales, Australia
| | | | - S Rachel Skinner
- Specialty of Child and Adolescent Health, Faculty of Medicine and Health, The University of Sydney, Westmead, New South Wales, Australia
- Sydney Infectious Diseases Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
- Kids Research, The Children's Hospital at Westmead, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
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Khalid R, Mahmood S, Mohamed Sofian Z, Hilles AR, Hashim NM, Ge Y. Microneedles and Their Application in Transdermal Delivery of Antihypertensive Drugs-A Review. Pharmaceutics 2023; 15:2029. [PMID: 37631243 PMCID: PMC10459756 DOI: 10.3390/pharmaceutics15082029] [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: 06/07/2023] [Revised: 06/30/2023] [Accepted: 07/12/2023] [Indexed: 08/27/2023] Open
Abstract
One of the most cutting-edge, effective, and least invasive pharmaceutical innovations is the utilization of microneedles (MNs) for drug delivery, patient monitoring, diagnostics, medicine or vaccine delivery, and other medical procedures (e.g., intradermal vaccination, allergy testing, dermatology, and blood sampling). The MN-based system offers many advantages, such as minimal cost, high medical effectiveness, comparatively good safety, and painless drug application. Drug delivery through MNs can possibly be viewed as a viable instrument for various macromolecules (e.g., proteins, peptides, and nucleic acids) that are not efficiently administered through traditional approaches. This review article provides an overview of MN-based research in the transdermal delivery of hypertensive drugs. The critical attributes of microneedles are discussed, including the mechanism of drug release, pharmacokinetics, fabrication techniques, therapeutic applications, and upcoming challenges. Furthermore, the therapeutic perspective and improved bioavailability of hypertensive drugs that are poorly aqueous-soluble are also discussed. This focused review provides an overview of reported studies and the recent progress of MN-based delivery of hypertensive drugs, paving the way for future pharmaceutical uses. As MN-based drug administration bypasses first-pass metabolism and the high variability in drug plasma levels, it has grown significantly more important for systemic therapy. In conclusion, MN-based drug delivery of hypertensive drugs for increasing bioavailability and patient compliance could support a new trend of hypertensive drug delivery and provide an alternative option, overcoming the restrictions of the current dosage forms.
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Affiliation(s)
- Ramsha Khalid
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (R.K.); (Z.M.S.)
| | - Syed Mahmood
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (R.K.); (Z.M.S.)
| | - Zarif Mohamed Sofian
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia; (R.K.); (Z.M.S.)
| | - Ayah R. Hilles
- INHART, International Islamic University Malaysia, Jalan Gombak, Kuala Lumpur 53100, Malaysia;
| | - Najihah Mohd Hashim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia;
- Center for Natural Products Research and Drug Discovery (CENAR), Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Yi Ge
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK
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Wang M, Li X, Du W, Sun M, Ling G, Zhang P. Microneedle-mediated treatment for superficial tumors by combining multiple strategies. Drug Deliv Transl Res 2023; 13:1600-1620. [PMID: 36735217 PMCID: PMC9897165 DOI: 10.1007/s13346-023-01297-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2023] [Indexed: 02/04/2023]
Abstract
Superficial tumors are still challenging to overcome due to the high risk and toxicity of surgery and conventional chemotherapy. Microneedles (MNs) are widely used in the treatment of superficial skin tumors (SST) due to the high penetration rate of the stratum corneum (SC), excellent biocompatibility, simple preparation process, high patient compliance, and minimal invasion. Most importantly, MNs can provide not only efficient and rarely painful delivery carriers, but also combine multi-model strategies with photothermal therapy (PTT), immunotherapy, and gene therapy for synergistic efficacy. To promote an in-depth understanding of their superiorities, this paper systematically summarized the latest application progress of MNs in the treatment of SST by delivering various types of photosensitizers, immune signal molecules, genes, and chemotherapy drugs. Just as important, the advantages, limitations, and drug release mechanisms of MNs based on different materials are introduced in the paper. In addition, the application of MN technology to clinical practice is the ultimate goal of all the work. The obstacles and possible difficulties in expanding the production of MNs and achieving clinical transformation are briefly discussed in this paper. To be anticipated, our work will provide new insights into the precise and rarely painful treatment of SST in the future.
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Affiliation(s)
- Meng Wang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Xiaodan Li
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Wenzhen Du
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Minge Sun
- Shenyang Narnia Biomedical Technology Company, Ltd, Shenyang, 110167, China
| | - Guixia Ling
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China
| | - Peng Zhang
- Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China.
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Guillot AJ, Martínez-Navarrete M, Zinchuk-Mironova V, Melero A. Microneedle-assisted transdermal delivery of nanoparticles: Recent insights and prospects. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023:e1884. [PMID: 37041036 DOI: 10.1002/wnan.1884] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 02/01/2023] [Accepted: 02/13/2023] [Indexed: 04/13/2023]
Abstract
Transdermal delivery of drugs offers an interesting alternative for the administration of molecules that present certain troubles when delivered by the oral route. It can produce systemic effects or perform a local action when the formulation exerts an optimal controlled drug release or a targeted delivery to the specific cell type or site. It also avoids several inconveniences of the oral administration such as the hepatic first pass effect, gastric pH-induced hydrolysis, drug malabsorption because of certain diseases or surgeries, and unpleasant organoleptic properties. Nanomedicine and microneedle array patches (MAPs) are two of the trendiest delivery systems applied to transdermal research nowadays. However, the skin is a protective barrier and nanoparticles (NPs) cannot pass through the intact stratum corneum. The association of NPs and MAPs (NPs@MAPs) work synergistically, since MAPs assist NPs to bypass the outer skin layers, and NPs contribute to the system providing controlled drug release and targeted delivery. Vaccination and tailored therapies have been proposed as fields where both NPs and MAPs have great potential due to inherent characteristics. MAPs conception and easy use could allow self-administration and therefore facilitate mass vaccination campaigns in undeveloped areas with weak healthcare services. Additionally, nanomedicine is being explored as a platform to personalize therapies in such an important field as oncology. In this work we show recent insights that prove the benefits of NPs@MAPs association and analyze the prospects and the discrete interest of the industry in NPs@MAPs, evaluating different limiting steps that restricts NPs@MAPs translation to the clinical practice. This article is categorized under: Nanotechnology Approaches to Biology > NA Therapeutic Approaches and Drug Discovery > NA.
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Affiliation(s)
- Antonio José Guillot
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estelles s/n, 46100, Burjassot, Spain
| | - Miquel Martínez-Navarrete
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estelles s/n, 46100, Burjassot, Spain
| | - Valeria Zinchuk-Mironova
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estelles s/n, 46100, Burjassot, Spain
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estelles s/n, 46100, Burjassot, Spain
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Huang X, Chang Q, Gao JH, Lu F. Sustained Release Microneedles: Materials and Applications in Facial Rejuvenation. TISSUE ENGINEERING. PART B, REVIEWS 2023. [PMID: 36200631 DOI: 10.1089/ten.teb.2022.0131] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Wrinkled and loose skin resulting from collagen degradation along with fibers decreasing reflects the youth diminishing. Microneedles (MNs) have opened up new avenues for the development of painless and noninvasive transdermal drug delivery systems for facial rejuvenation. Encapsulated drugs or molecules are transmitted to targeted tissues via percutaneous microchannels, which eliminate potential gastric stimulation or first-pass metabolic effects, as well as boost patient compliance. Although MNs are considered effective and feasible therapeutic alternatives to metals, silicon, and polymers, traditional procedures with reduction processes continue to encounter methodological limitations. In recent years, promising additive manufacturing processes such as three-dimensional printing and two-photon polymerization manufacturing have been developed with the aim of overcoming the limitations by traditional processes to facilitate an efficient and economic production mode. This review summarizes the design, material selection, and manufacturing method for recently advanced MN systems. Furthermore, we also highlight specific polymeric or natural microneedle products, like hyaluronan, plant derivates, and vitamins, for esthetic applications in this review. Impact Statement In this review, the materials and manufactural routes of microneedles (MNs) are detailed. Moreover, similar to the diagnostic or therapeutic MNs, the feature of dispensation with training and ready-to-use is perfect for beautification and anti-aging, which necessitate repeated and long-term usage. Furthermore, the specific polymeric or natural products for esthetic applications of MNs are highlighted in this review.
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Affiliation(s)
- Xiaoqi Huang
- Department of Plastic and Reconstruction Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiang Chang
- Department of Plastic and Reconstruction Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jian-Hua Gao
- Department of Plastic and Reconstruction Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Feng Lu
- Department of Plastic and Reconstruction Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Kumar P, Bird C, Holland D, Joshi SB, Volkin DB. Current and next-generation formulation strategies for inactivated polio vaccines to lower costs, increase coverage, and facilitate polio eradication. Hum Vaccin Immunother 2022; 18:2154100. [PMID: 36576132 PMCID: PMC9891683 DOI: 10.1080/21645515.2022.2154100] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Implementation of inactivated polio vaccines (IPV) containing Sabin strains (sIPV) will further enable global polio eradication efforts by improving vaccine safety during use and containment during manufacturing. Moreover, sIPV-containing vaccines will lower costs and expand production capacity to facilitate more widespread use in low- and middle-income countries (LMICs). This review focuses on the role of vaccine formulation in these efforts including traditional Salk IPV vaccines and new sIPV-containing dosage forms. The physicochemical properties and stability profiles of poliovirus antigens are described. Formulation approaches to lower costs include developing multidose and combination vaccine formats as well as improving storage stability. Formulation strategies for dose-sparing and enhanced mucosal immunity include employing adjuvants (e.g. aluminum-salt and newer adjuvants) and/or novel delivery systems (e.g. ID administration with microneedle patches). The potential for applying these low-cost formulation development strategies to other vaccines to further improve vaccine access and coverage in LMICs is also discussed.
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Affiliation(s)
- Prashant Kumar
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS, USA
| | - Christopher Bird
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS, USA
| | - David Holland
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS, USA
| | - Sangeeta B. Joshi
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS, USA
| | - David B. Volkin
- Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Lawrence, KS, USA,CONTACT David B. Volkin Department of Pharmaceutical Chemistry, Vaccine Analytics and Formulation Center, University of Kansas, Multidisciplinary Research Building, 2030 Becker Drive, Lawrence, KS66047, USA
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Preparation of particle-attached microneedles using a dry coating process. J Control Release 2022; 351:1003-1016. [DOI: 10.1016/j.jconrel.2022.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/27/2022] [Accepted: 10/01/2022] [Indexed: 11/19/2022]
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Priya S, Singhvi G. Microneedles-based drug delivery strategies: A breakthrough approach for the management of pain. Biomed Pharmacother 2022; 155:113717. [PMID: 36174381 DOI: 10.1016/j.biopha.2022.113717] [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: 08/16/2022] [Revised: 09/03/2022] [Accepted: 09/19/2022] [Indexed: 11/29/2022] Open
Abstract
Pain is a personalized event or body alarm system that can limit a patient's activities and lead to negative repercussions. The commercially available conventional treatment strategies like oral, parenteral, and topical drug delivery systems for pain management are associated with side effects and poor patient compliance. The transdermal route is eminent for its painless distribution. Among transdermal drug delivery system, microneedles (MNs) are gaining attention for their application with delivery at the deeper dermal layer because it bypasses the major barrier of the skin, easily accesses the skin dermal microcirculation, prevents damage to dermal blood vessels, and can be simply inserted into the skin without utilizing any additional applicator devices. Hence, considered a promising drug delivery strategy with high patient compliance. This review highlights the recent advancements of MNs in pain management. The present work mainly emphasizes all the case studies reported from the past 10 years that utilize MNs containing therapeutics in the treatment of chronic pain-associated diseases like rheumatoid arthritis, neuropathic pain, osteoarthritis, psoriatic arthritis, and atopic dermatitis. These studies have proven the efficacious application of MNs in the management of chronic pain and inflammation. The review also covered the clinical trials, patents, and future goals of pain management by using MNs.
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Affiliation(s)
- Sakshi Priya
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) - Pilani, Pilani Campus, Rajasthan 333031, India
| | - Gautam Singhvi
- Industrial Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science (BITS) - Pilani, Pilani Campus, Rajasthan 333031, India.
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12
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Sugar-Triggered Burst Drug Releasing Poly-Lactic Acid (PLA) Microneedles and Its Fabrication Based on Solvent-Casting Approach. Pharmaceutics 2022; 14:pharmaceutics14091758. [PMID: 36145506 PMCID: PMC9504721 DOI: 10.3390/pharmaceutics14091758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/19/2022] [Accepted: 08/19/2022] [Indexed: 11/17/2022] Open
Abstract
Microneedles have emerged as a novel transdermal delivery tool that enables the delivery of various products such as drugs, vaccines, or cosmetic ingredients. Although the demand for solid microneedles composed of biocompatible polymer is increasing, the manufacture of microneedles using poly-lactic acid (PLA) with rapid drug-releasing is yet to be established and the process is still in its infancy. Here, we propose a novel strategy for the fabrication of PLA solid microneedles which enable a drug to be burst-released based on a solvent-casting process. This approach offers extreme simplicity, broad geometric capability, cost-effectiveness, and scalability based on high fidelity-replicas. It was verified that microneedles of various heights (250–500 μm) could be fabricated with appropriate mechanical strength to penetrate the stratum corneum layer of skin. By adding sugar in the composition of PLA microneedle, it was observed that both hydrophilic and hydrophobic drugs can be rapidly released within 30 min. Our burst drug-releasing PLA microneedle having both characteristics of solid microneedle and soluble microneedle and its fabrication approach based on solvent-casting will contribute to getting microneedle technology close to commercialization and beyond existing technical limitations.
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13
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Pająk J, Szepietowski JC, Nowicka D. Prevention of Ageing-The Role of Micro-Needling in Neck and Cleavage Rejuvenation: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19159055. [PMID: 35897441 PMCID: PMC9332435 DOI: 10.3390/ijerph19159055] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 11/18/2022]
Abstract
Although interest in aesthetic medicine is growing, the focus is often placed outside of the facial area, namely on the skin of the neck and cleavage. Exposure to the sun and muscle movements cause the prompt development of wrinkles that may appear there, even before they show up on the face. We conducted a literature review devoted to micro-needling to identify its role in anti-ageing treatments and to determine the gaps in current knowledge. A search in Medline identified 52 publications for neck and face micro-needling. Micro-needling is an anti-ageing procedure that involves making micro-punctures in the skin to induce skin remodelling by stimulating the fibroblasts responsible for collagen and elastin production. It can be applied to the skin of the face, neck, and cleavage. Two to four weeks should be allowed between repeated procedures to achieve an optimal effect. The increase in collagen and elastin in the skin can reach 400% after 6 months, with an increase in the thickness of the stratum granulosum occurring for up to 1 year. In conclusion, micro-needling can be considered an effective and safe aesthetic medicine procedure which is conducted at low costs due to its low invasiveness, low number of adverse reactions, and short recovery time. Little evidence identified in the literature suggests that this procedure requires further research.
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Affiliation(s)
- Justyna Pająk
- Department of Dermatology, Venereology and Allergology, Wrocław Medical University, 50-368 Wroclaw, Poland; (J.P.); (J.C.S.)
| | - Jacek C. Szepietowski
- Department of Dermatology, Venereology and Allergology, Wrocław Medical University, 50-368 Wroclaw, Poland; (J.P.); (J.C.S.)
| | - Danuta Nowicka
- Department of Dermatology, Venereology and Allergology, Wrocław Medical University, 50-368 Wroclaw, Poland; (J.P.); (J.C.S.)
- Faculty of Physiotherapy, Wroclaw University of Health and Sport Sciences, 51-612 Wroclaw, Poland
- Correspondence:
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14
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Hassan J, Haigh C, Ahmed T, Uddin MJ, Das DB. Potential of Microneedle Systems for COVID-19 Vaccination: Current Trends and Challenges. Pharmaceutics 2022; 14:1066. [PMID: 35631652 PMCID: PMC9144974 DOI: 10.3390/pharmaceutics14051066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/27/2022] [Accepted: 05/09/2022] [Indexed: 12/12/2022] Open
Abstract
To prevent the coronavirus disease 2019 (COVID-19) pandemic and aid restoration to prepandemic normality, global mass vaccination is urgently needed. Inducing herd immunity through mass vaccination has proven to be a highly effective strategy for preventing the spread of many infectious diseases, which protects the most vulnerable population groups that are unable to develop immunity, such as people with immunodeficiencies or weakened immune systems due to underlying medical or debilitating conditions. In achieving global outreach, the maintenance of the vaccine potency, transportation, and needle waste generation become major issues. Moreover, needle phobia and vaccine hesitancy act as hurdles to successful mass vaccination. The use of dissolvable microneedles for COVID-19 vaccination could act as a major paradigm shift in attaining the desired goal to vaccinate billions in the shortest time possible. In addressing these points, we discuss the potential of the use of dissolvable microneedles for COVID-19 vaccination based on the current literature.
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Affiliation(s)
- Jasmin Hassan
- Drug Delivery & Therapeutics Lab, Dhaka 1212, Bangladesh; (J.H.); (T.A.)
| | - Charlotte Haigh
- Department of Chemical Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK;
| | - Tanvir Ahmed
- Drug Delivery & Therapeutics Lab, Dhaka 1212, Bangladesh; (J.H.); (T.A.)
| | - Md Jasim Uddin
- Drug Delivery & Therapeutics Lab, Dhaka 1212, Bangladesh; (J.H.); (T.A.)
- Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK
- Department of Pharmacy, Brac University, 66 Mohakhali, Dhaka 1212, Bangladesh
| | - Diganta B. Das
- Department of Chemical Engineering, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK;
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15
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Shen YC, Chiu WK, Kang YN, Chen C. Microneedling Monotherapy for Acne Scar: Systematic Review and Meta-Analysis of Randomized Controlled Trials. Aesthetic Plast Surg 2022; 46:1913-1922. [PMID: 35426044 DOI: 10.1007/s00266-022-02845-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/12/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Acne scarring, formed by the deposition of collagen following inflammatory acne, not only represents a cosmetic problem but also poses a psychological health risk to patients. As microneedling has become a common treatment for acne scarring, an increasing number of studies have compared the efficacy and safety of microneedling. In this study, we conducted a meta-analysis of randomized controlled trials (RCTs) comparing microneedling with other treatments. METHOD Three databases, namely Embase, PubMED, and Cochrane library, were searched until June 20, 2021, for RCTs only. Studies using microneedling in both treatments were excluded. RESULTS Twelve studies, totaling 414 participants, were included in our meta-analysis. For objective scar improvement, the pooled estimate analysis of the first group, treated with microneedling without radiofrequency, yielded a mean difference of 0.42 (95% CI-0.12-0.73%) with a significant difference at the 5% significance level. The second group, treated with fractional radiofrequency microneedling, exhibited no significance at the 5% significance level. Regarding subjective satisfaction, most results exhibited no significant difference between microneedling and other treatments. Although no case of secondary scarring or infection was reported in our study, the pooled result of postinflammatory hyperpigmentation was significant at the 5% significance level and preferred microneedling treatment. CONCLUSION Microneedling without radiofrequency achieved superior results in terms of scar improvement. No form of microneedling caused postinflammatory hyperpigmentation-an advantage in acne scar treatment. Thus, microneedling is a favorable choice for the treatment of acne scarring. LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Yu-Chun Shen
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Kuan Chiu
- Division of Plastic Surgery, Department of Surgery, Taipei Municipal Wanfang Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-No Kang
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan
- Evidence-Based Medicine Center, Wan Fang Hospital, Medical University Hospital, Taipei, Taiwan
- Research Center of Big Data and Meta-analysis, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Institute of Health Policy & Management, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chiehfeng Chen
- Division of Plastic Surgery, Department of Surgery, Taipei Municipal Wanfang Hospital, Taipei Medical University, Taipei, Taiwan.
- Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.
- Evidence-Based Medicine Center, Wan Fang Hospital, Medical University Hospital, Taipei, Taiwan.
- Department of Public Health, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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16
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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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17
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Innovations in vaccine delivery: increasing access, coverage, and equity and lessons learnt from measles and rubella elimination. Drug Deliv Transl Res 2022; 12:959-967. [PMID: 35211868 PMCID: PMC8870075 DOI: 10.1007/s13346-022-01130-9] [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] [Accepted: 02/07/2022] [Indexed: 11/22/2022]
Abstract
Disease eradication and elimination programs drive innovations based on progress toward measurable objectives, evaluations of new strategies and methods, programmatic experiences, and lessons learned from the field. Following progress toward global measles elimination, reducing measles mortality, and increasing introductions of measles and rubella vaccines to national programs, the measles and rubella immunization program has faced setbacks in recent years. Currently available vaccine delivery methods have complicated logistics and drawbacks that create barriers to vaccination; innovations for easier, more efficient, and safer vaccine delivery are needed. Progress can be accelerated by new technologies like microarray patches (MAPs) that are now widely recognized as a potential new tool for enhancing global immunizations efforts. Clinical trials of measles-rubella vaccine MAPs have begun, and several other vaccine MAPs are in the pre-clinical development pathway. MAPs could significantly contribute to Immunization Agenda 2030 priorities, including reaching zero-dose children; increasing vaccine access, demand, coverage, and equity; and achieving measles and rubella elimination. With strong partnerships between public health agencies and biotechnology companies, translational novel vaccine delivery systems can be developed to help solve public health problems and achieve global health priorities.
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18
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Yeo XY, Cunliffe G, Ho RC, Lee SS, Jung S. Potentials of Neuropeptides as Therapeutic Agents for Neurological Diseases. Biomedicines 2022; 10:343. [PMID: 35203552 PMCID: PMC8961788 DOI: 10.3390/biomedicines10020343] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/23/2022] [Accepted: 01/24/2022] [Indexed: 02/04/2023] Open
Abstract
Despite recent leaps in modern medicine, progress in the treatment of neurological diseases remains slow. The near impermeable blood-brain barrier (BBB) that prevents the entry of therapeutics into the brain, and the complexity of neurological processes, limits the specificity of potential therapeutics. Moreover, a lack of etiological understanding and the irreversible nature of neurological conditions have resulted in low tolerability and high failure rates towards existing small molecule-based treatments. Neuropeptides, which are small proteinaceous molecules produced by the body, either in the nervous system or the peripheral organs, modulate neurological function. Although peptide-based therapeutics originated from the treatment of metabolic diseases in the 1920s, the adoption and development of peptide drugs for neurological conditions are relatively recent. In this review, we examine the natural roles of neuropeptides in the modulation of neurological function and the development of neurological disorders. Furthermore, we highlight the potential of these proteinaceous molecules in filling gaps in current therapeutics.
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Affiliation(s)
- Xin Yi Yeo
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore; (X.Y.Y.); (G.C.)
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
| | - Grace Cunliffe
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore; (X.Y.Y.); (G.C.)
- Division of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PL, UK
| | - Roger C. Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Institute for Health Innovation & Technology (iHealthtech), National University of Singapore, Singapore 117599, Singapore
| | - Su Seong Lee
- NanoBio Lab, Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore
| | - Sangyong Jung
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore 138667, Singapore; (X.Y.Y.); (G.C.)
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore
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19
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Murty R, Sankaranarayanan A, Bowland II, Mena-Lapaix J, Prausnitz MR. Angled Insertion of Microneedles for Targeted Antigen Delivery to the Epidermis. Pharmaceutics 2022; 14:pharmaceutics14020347. [PMID: 35214079 PMCID: PMC8874562 DOI: 10.3390/pharmaceutics14020347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/21/2022] [Accepted: 01/28/2022] [Indexed: 11/28/2022] Open
Abstract
Peanut and tree nut allergies account for most food-induced anaphylactic events. The standard allergy immunotherapy approach involves subcutaneous injection, which is challenging because severe adverse reactions can occur when antigens spread systemically. Allergen localization within the epidermis (i.e., the upper 20–100 µm of skin) should significantly reduce systemic uptake, because the epidermis is avascular. Microneedle (MN) patches provide a convenient method for drug delivery to the skin, but they generally target both epidermis and dermis, leading to systemic delivery. In this study, we adapted MN technology for epidermal localization by performing angled insertion of 250 µm–long MNs that limits MN insertion depth mostly to the epidermis. We designed a biplanar insertion device to aid the repeatability of angled insertions into porcine skin ex vivo at specified angles (90°, 45°, and 20°). When compared to 90° insertions, MN application at 20° decreased mean insertion depth from 265 ± 45 µm to 97 ± 15 µm. Image analysis of histological skin sections revealed that acute-angle insertion increased epidermal localization of delivery for antigen-coated MNs from 25% ± 13% to 70% ± 21%. We conclude that angled insertion of MNs can target antigen delivery to epidermis.
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20
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Davies C, Taba M, Deng L, Karatas C, Bag S, Ross C, Forster A, Booy R, Skinner SR. Usability, acceptability, and feasibility of a High-Density Microarray Patch (HD-MAP) applicator as a delivery method for vaccination in clinical settings. Hum Vaccin Immunother 2022; 18:2018863. [PMID: 35100525 PMCID: PMC9196792 DOI: 10.1080/21645515.2021.2018863] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background High-density microarray patch (HD-MAP) vaccines may increase vaccine acceptance and use. We aimed to ascertain whether professional immunizers (PIs) and other healthcare workers (HCWs) in Australia, a High-Income Country (HIC), found the HD-MAP applicator usable and acceptable for vaccine delivery. Methods This feasibility study recruited PIs and HCWs to administer/receive simulated HD-MAP administration, including via self-administration. We assessed usability against essential and desirable criteria. Participants completed a survey, rating their agreement to statements about HD-MAP administration. A subset also participated in an interview or focus group. Survey data were analyzed using descriptive statistics, and interviews were transcribed and subject to thematic analysis. Results We recruited 61 participants: 23 PIs and 38 HCWs. Findings indicated high usability and acceptability of HD-MAP use across both groups by a healthcare professional or trained user and for self-administration with safety measures in place. Most administrations met essential criteria, but PIs, on average, applied the HD-MAP for slightly less time than the required 10-seconds, which the HCWs achieved. PIs perceived safety concerns about home administration but found layperson self-administration acceptable in an emergency, pandemic, and rural or remote settings. Conclusions Participants found HD-MAP administration usable and acceptable. Usability and acceptability are likely to be improved through end-user education and training. Professional immunizers and healthcare workers found high-density microarray patch devices highly usable and acceptable to administer vaccines. HD-MAPs may have advantages over intramuscular injections in clinical settings and in pandemics.
Vaccination with HD-MAP may improve acceptance for those with needle-related anxiety.
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Affiliation(s)
- Cristyn Davies
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia.,Sydney Institute of Infectious Diseases, University of Sydney, Sydney, Australia
| | - Melody Taba
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia.,Sydney Institute of Infectious Diseases, University of Sydney, Sydney, Australia
| | - Lucy Deng
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia.,National Centre for Immunisation Research and Surveillance, The Children's Hospital at Westmead, Westmead, Australia
| | - Ceylan Karatas
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia.,Graduate School of Medicine, The University of Wollongong, Keiraville, Australia
| | - Shopna Bag
- Centre for Population Health, Western Sydney Public Health Unit, North Parramatta, Australia.,Faculty of Medicine and Health, Westmead Clinical School, The University of Sydney, Westmead, Australia
| | - Charles Ross
- Vaxxas Pty Ltd, Translational Research Institute, Woolloongabba, Australia
| | - Angus Forster
- Vaxxas Pty Ltd, Translational Research Institute, Woolloongabba, Australia
| | - Robert Booy
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia.,Sydney Institute of Infectious Diseases, University of Sydney, Sydney, Australia
| | - S Rachel Skinner
- Specialty of Child and Adolescent Health, The Children's Hospital at Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Westmead, Australia.,Sydney Institute of Infectious Diseases, University of Sydney, Sydney, Australia
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21
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Labouta HI, Langer R, Cullis PR, Merkel OM, Prausnitz MR, Gomaa Y, Nogueira SS, Kumeria T. Role of drug delivery technologies in the success of COVID-19 vaccines: a perspective. Drug Deliv Transl Res 2022; 12:2581-2588. [PMID: 35290656 PMCID: PMC8923087 DOI: 10.1007/s13346-022-01146-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2022] [Indexed: 12/15/2022]
Abstract
The triumphant success of mRNA vaccines is a testimony to the important role drug delivery technologies have played in protecting billions of people against SARS-CoV-2 (or the Corona Virus Disease 2019; COVID-19). Several lipid nanoparticle (LNP) mRNA vaccines were developed and have been instrumental in preventing the disease by boosting the immune system against the pathogen, SARS-CoV-2. These vaccines have been built on decades of scientific research in drug delivery of mRNA, vaccines, and other biologicals. In this manuscript, several leading and emerging scientists in the field of drug delivery share their perspective on the role of drug delivery technologies in developing safe and efficacious vaccines, in a roundtable discussion. The authors also discussed their viewpoint on the current challenges, and the key research questions that should drive this important area of research.
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Affiliation(s)
- Hagar I. Labouta
- grid.21613.370000 0004 1936 9609College of Pharmacy, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T5 Canada ,grid.21613.370000 0004 1936 9609Biomedical Engineering, University of Manitoba, Winnipeg, MB Canada ,grid.460198.20000 0004 4685 0561Children’s Hospital Research Institute of Manitoba, Winnipeg, MB R3E 3P4 Canada ,grid.7155.60000 0001 2260 6941Faculty of Pharmacy, Alexandria University, Alexandria, 21521 Egypt
| | - Robert Langer
- grid.116068.80000 0001 2341 2786David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139 USA ,grid.116068.80000 0001 2341 2786Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Pieter R. Cullis
- grid.17091.3e0000 0001 2288 9830Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
| | - Olivia M. Merkel
- grid.5252.00000 0004 1936 973XDepartment of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-University, 81337 Munich, Germany
| | - Mark R. Prausnitz
- grid.213917.f0000 0001 2097 4943School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - Yasmine Gomaa
- grid.213917.f0000 0001 2097 4943School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - Sara S. Nogueira
- grid.1005.40000 0004 4902 0432School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW 2052 Australia ,grid.1005.40000 0004 4902 0432Australian Centre for NanoMedicine, University of New South Wales, Kensington, Sydney, NSW 2052 Australia
| | - Tushar Kumeria
- grid.1005.40000 0004 4902 0432School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, NSW 2052 Australia ,grid.1005.40000 0004 4902 0432Australian Centre for NanoMedicine, University of New South Wales, Kensington, Sydney, NSW 2052 Australia
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22
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Nazary Abrbekoh F, Salimi L, Saghati S, Amini H, Fathi Karkan S, Moharamzadeh K, Sokullu E, Rahbarghazi R. Application of microneedle patches for drug delivery; doorstep to novel therapies. J Tissue Eng 2022; 13:20417314221085390. [PMID: 35516591 PMCID: PMC9065468 DOI: 10.1177/20417314221085390] [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: 01/06/2022] [Accepted: 02/17/2022] [Indexed: 12/14/2022] Open
Abstract
In the past decade, microneedle-based drug delivery systems showed promising approaches to become suitable and alternative for hypodermic injections and can control agent delivery without side effects compared to conventional approaches. Despite these advantages, the procedure of microfabrication is facing some difficulties. For instance, drug loading method, stability of drugs, and retention time are subjects of debate. Besides, the application of novel refining fabrication methods, types of materials, and instruments are other issues that need further attention. Herein, we tried to summarize recent achievements in controllable drug delivery systems (microneedle patches) in vitro and in vivo settings. In addition, we discussed the influence of delivered drugs on the cellular mechanism and immunization molecular signaling pathways through the intradermal delivery route. Understanding the putative efficiency of microneedle patches in human medicine can help us develop and design sophisticated therapeutic modalities.
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Affiliation(s)
| | - Leila Salimi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Saghati
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hassan Amini
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sonia Fathi Karkan
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Keyvan Moharamzadeh
- Hamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Emel Sokullu
- Koç University Research Center for Translational Medicine (KUTTAM), Istanbul, Turkey
| | - 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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Sims LB, Appenroth MN. Contraceptive technology research & development: a call for inclusion of trans and gender diverse individuals assigned female at birth. EUR J CONTRACEP REPR 2021; 27:142-147. [PMID: 34845964 DOI: 10.1080/13625187.2021.2000960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Increased research efforts over the past decade provide a more in-depth understanding of the diverse fertility desires and family planning needs of trans and gender diverse individuals assigned female at birth (TGD AFAB). Despite this increased understanding and unmet need, global health researchers and contraceptive product developers have yet to include TGD AFAB individuals and considerations of their needs in the product development process, marginalising this historically underrepresented population. The aim of this perspective is to present the case for inclusion of TGD AFAB individuals in contraceptive research. MAIN OUTCOMES This perspective summarises the most recent literature characterising contraceptive access and use within TGD AFAB populations as well as the barriers to use. Furthermore, this perspective offers insight into how novel contraceptive technologies in the research and development pipeline could potentially appeal to TGD AFAB populations and recommends steps product developers can make towards being more inclusive. CONCLUSIONS With current research efforts in contraceptive product development aimed at expanding the method mix to appeal to a more diverse population of potential users, it behoves product developers to be more inclusive of TGD AFAB individuals in the development process and consider them as stakeholders of an expanded contraceptive method mix.
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Affiliation(s)
- Lee B Sims
- United States Agency for International Development, Global Health Technical Professionals Program, Public Health Institute
| | - Max N Appenroth
- Institute of Public Health, Charité - Universitätsmedizin Berlin, Berlin, Germany
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24
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Nguyen TT, Nguyen TTD, Tran NMA, Vo GV. Advances of microneedles in hormone delivery. Biomed Pharmacother 2021; 145:112393. [PMID: 34773762 DOI: 10.1016/j.biopha.2021.112393] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/27/2021] [Accepted: 11/02/2021] [Indexed: 12/14/2022] Open
Abstract
The skin is recognized as a potential target for local and systemic drug delivery and hormone. However, the transdermal route of drug administration seems to be limited by substantial barrier properties of the skin. Recently, delivering hormone via the skin by transdermal patches is a big challenge because of the presence of the stratum corneum that prevents the application of hormone via this route. In order to overcome the limitations, microneedle (MN), consisting of micro-sized needles, are a promising approach to drill the stratum corneum and release hormone into the dermis via a minimal-invasive route. This review aimed to highlight advances in research on the development of MNs-based therapeutics for their implications in hormone delivery. The challenges during clinical translation of MNs from bench to bedside are also discussed.
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Affiliation(s)
- Thuy Trang Nguyen
- Faculty of Pharmacy, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City 700000, Viet Nam
| | - Thi Thuy Dung Nguyen
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Viet Nam
| | - Nguyen-Minh-An Tran
- Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71420, Viet Nam.
| | - Giau Van Vo
- Department of Biomedical Engineering, School of Medicine, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam; Research Center for Genetics and Reproductive Health (CGRH), School of Medicine, Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam; Vietnam National University - Ho Chi Minh City (VNU-HCM), Ho Chi Minh City 700000, Viet Nam.
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25
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Balmert SC, Ghozloujeh ZG, Carey CD, Akilov OE, Korkmaz E, Falo LD. Research Techniques Made Simple: Skin-Targeted Drug and Vaccine Delivery Using Dissolvable Microneedle Arrays. J Invest Dermatol 2021; 141:2549-2557.e1. [PMID: 34688405 DOI: 10.1016/j.jid.2021.07.177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/11/2021] [Accepted: 07/26/2021] [Indexed: 11/28/2022]
Abstract
Skin-targeted drug delivery is broadly employed for both local and systemic therapeutics and is an important tool for discovery efforts in cutaneous biology. Recently, emerging technologies support efforts toward skin-targeted biocargo delivery for local and systemic therapeutic benefit. Effective targeting of bioactive molecules, including large (molecular weight > 500 Da) or complex (hydrophilic and charged) molecules, to defined cutaneous microenvironments is intrinsically challenging owing to the protective barrier function of the skin. Dissolvable microneedle arrays (MNAs) have proven to be a promising technology to address the unmet need for controlled, minimally invasive, and reliable delivery of a wide range of biocargos to the skin. In this paper, we describe the unique properties of the skin that make it an attractive target for vaccine delivery, for immune-modulating therapies, and for systemic drug delivery and the structural characteristics of the skin that present obstacles to efficient intracutaneous and transdermal delivery of bioactive molecules. We provide an overview of MNA fabrication and the characteristics and mechanisms of dissolvable MNA cargo delivery to the cutaneous microenvironment. We present a representative example of a clinical application of MNAs and discuss future directions for MNA development and applications.
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Affiliation(s)
- Stephen C Balmert
- Department of Dermatology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | - Cara Donahue Carey
- Department of Dermatology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Oleg E Akilov
- Department of Dermatology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Emrullah Korkmaz
- Department of Dermatology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Louis D Falo
- Department of Dermatology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA; The UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA; The McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
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26
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Vllasaliu D. Non-Invasive Drug Delivery Systems. Pharmaceutics 2021; 13:pharmaceutics13050611. [PMID: 33922587 PMCID: PMC8145673 DOI: 10.3390/pharmaceutics13050611] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
Non-invasive drug delivery generally refers to painless drug administration methods involving drug delivery across the biological barriers of the mucosal surfaces or the skin [...].
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Affiliation(s)
- Driton Vllasaliu
- School of Cancer & Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, UK
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27
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Mercuri M, Fernandez Rivas D. Challenges and opportunities for small volumes delivery into the skin. BIOMICROFLUIDICS 2021; 15:011301. [PMID: 33532017 PMCID: PMC7826167 DOI: 10.1063/5.0030163] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 01/09/2021] [Indexed: 05/04/2023]
Abstract
Each individual's skin has its own features, such as strength, elasticity, or permeability to drugs, which limits the effectiveness of one-size-fits-all approaches typically found in medical treatments. Therefore, understanding the transport mechanisms of substances across the skin is instrumental for the development of novel minimal invasive transdermal therapies. However, the large difference between transport timescales and length scales of disparate molecules needed for medical therapies makes it difficult to address fundamental questions. Thus, this lack of fundamental knowledge has limited the efficacy of bioengineering equipment and medical treatments. In this article, we provide an overview of the most important microfluidics-related transport phenomena through the skin and versatile tools to study them. Moreover, we provide a summary of challenges and opportunities faced by advanced transdermal delivery methods, such as needle-free jet injectors, microneedles, and tattooing, which could pave the way to the implementation of better therapies and new methods.
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Affiliation(s)
- Magalí Mercuri
- Instituto de Nanociencia y Nanotecnología (CNEA-CONICET), Av. Gral. Paz 1499, 1650 San Martín, Buenos Aires, Argentina
| | - David Fernandez Rivas
- Mesoscale Chemical Systems Group, MESA+ Institute, TechMed Centre and Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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