1
|
De Grau-Bassal G, Mallandrich M, Sosa L, Espinoza L, Calpena AC, Bozal-de Febrer N, Rodríguez-Lagunas MJ, Garduño-Ramírez ML, Rincón M. A Novel Approach for Dermal Application of Pranoprofen-Loaded Lipid Nanoparticles for the Treatment of Post-Tattoo Inflammatory Reactions. Pharmaceutics 2024; 16:643. [PMID: 38794305 PMCID: PMC11125123 DOI: 10.3390/pharmaceutics16050643] [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: 02/05/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/26/2024] Open
Abstract
Recently, the number of people acquiring tattoos has increased, with tattoos gaining significant popularity in people between 20 and 40 years old. Inflammation is a common reaction associated with tattooing. The purpose of this study was to evaluate a nanostructured lipid carrier loading pranoprofen (PRA-NLC) as a tattoo aftercare formulation to reduce the inflammation associated with tattooing. In this context, the in vitro drug release and the ex vivo permeation-through-human-skin tests using Franz cells were appraised. The tolerance of our formulation on the skin was evaluated by studying the skin's biomechanical properties. In addition, an in vivo anti-inflammatory study was conducted on mice skin to evaluate the efficacy of the formulation applied topically after tattooing the animals. PRA-NLC showed a sustained release up to 72 h, and the amount of pranoprofen retained in the skin was found to be 33.48 µg/g/cm2. The formulation proved to be well tolerated; it increased stratum corneum hydration, and no signs of skin irritation were observed. Furthermore, it was demonstrated to be non-cytotoxic since the cell viability was greater than 80%. Based on these results, we concluded that PRA-NLC represents a suitable drug delivery carrier for the transdermal delivery of pranoprofen to alleviate the local skin inflammation associated with tattooing.
Collapse
Affiliation(s)
- Guillermo De Grau-Bassal
- Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain; (G.D.G.-B.); (N.B.-d.F.)
| | - Mireia Mallandrich
- Departament de Farmàcia, Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain;
- Institut de Nanociència i Nanotecnologia IN2UB, University of Barcelona, 08028 Barcelona, Spain;
| | - Lilian Sosa
- Microbiological Research Institute (IIM), National Autonomous University of Honduras (UNAH), Tegucigalpa 11101, Honduras;
- Institute for Research in Applied Sciences and Technology (IICAT), National Autonomous University of Honduras (UNAH), Tegucigalpa 11101, Honduras
| | - Lupe Espinoza
- Departamento de Química, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador;
| | - Ana Cristina Calpena
- Departament de Farmàcia, Tecnologia Farmacèutica, i Fisicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain;
- Institut de Nanociència i Nanotecnologia IN2UB, University of Barcelona, 08028 Barcelona, Spain;
| | - Núria Bozal-de Febrer
- Departament de Biologia, Sanitat i Medi Ambient, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona (UB), 08028 Barcelona, Spain; (G.D.G.-B.); (N.B.-d.F.)
| | - María J. Rodríguez-Lagunas
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain;
- Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - María L. Garduño-Ramírez
- Institut de Nanociència i Nanotecnologia IN2UB, University of Barcelona, 08028 Barcelona, Spain;
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, 62210 Cuernavaca, Morelos, Mexico
| | - María Rincón
- Institut de Nanociència i Nanotecnologia IN2UB, University of Barcelona, 08028 Barcelona, Spain;
- Departament de Ciència de Materials i Química Física, Facultat de Química, Universitat de Barcelona (UB), 08028 Barcelona, Spain
| |
Collapse
|
2
|
Ertas YN, Ertas D, Erdem A, Segujja F, Dulchavsky S, Ashammakhi N. Diagnostic, Therapeutic, and Theranostic Multifunctional Microneedles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2308479. [PMID: 38385813 DOI: 10.1002/smll.202308479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/04/2024] [Indexed: 02/23/2024]
Abstract
Microneedles (MNs) have maintained their popularity in therapeutic and diagnostic medical applications throughout the past decade. MNs are originally designed to gently puncture the stratum corneum layer of the skin and have lately evolved into intelligent devices with functions including bodily fluid extraction, biosensing, and drug administration. MNs offer limited invasiveness, ease of application, and minimal discomfort. Initially manufactured solely from metals, MNs are now available in polymer-based varieties. MNs can be used to create systems that deliver drugs and chemicals uniformly, collect bodily fluids, and are stimulus-sensitive. Although these advancements are favorable in terms of biocompatibility and production costs, they are insufficient for the therapeutic use of MNs. This is the first comprehensive review that discusses individual MN functions toward the evolution and development of smart and multifunctional MNs for a variety of novel and impactful future applications. The study examines fabrication techniques, application purposes, and experimental details of MN constructs that perform multiple functions concurrently, including sensing, drug-molecule release, sampling, and remote communication capabilities. It is highly likely that in the near future, MN-based smart devices will be a useful and important component of standard medical practice for different applications.
Collapse
Affiliation(s)
- Yavuz Nuri Ertas
- Department of Biomedical Engineering, Erciyes University, Kayseri, 38039, Türkiye
- ERNAM-Nanotechnology Research and Application Center, Erciyes University, Kayseri, 38039, Türkiye
- UNAM-National Nanotechnology Research Center, Bilkent University, Ankara, 06800, Türkiye
| | - Derya Ertas
- ERNAM-Nanotechnology Research and Application Center, Erciyes University, Kayseri, 38039, Türkiye
| | - Ahmet Erdem
- Department of Biomedical Engineering, Kocaeli University, Umuttepe Campus, Kocaeli, 41380, Türkiye
- Department of Chemistry, Kocaeli University, Umuttepe Campus, Kocaeli, 41380, Türkiye
| | - Farouk Segujja
- Department of Biomedical Engineering, Kocaeli University, Umuttepe Campus, Kocaeli, 41380, Türkiye
| | - Scott Dulchavsky
- Department of Surgery, Henry Ford Health, Detroit, MI, 48201, USA
| | - Nureddin Ashammakhi
- Institute for Quantitative Health Science and Engineering (IQ) and Department of Biomedical Engineering (BME), Colleges of Engineering and Human Medicine, Michigan State University, East Lansing, MI, 48824, USA
| |
Collapse
|
3
|
Sarnthiratch M, Alsheddi L, Nimmansophon P, Wanasathop A, Li SK. Effect of Receptor Solution in Studies of In Vitro Permeation Test (IVPT). J Pharm Sci 2024; 113:407-418. [PMID: 37972891 DOI: 10.1016/j.xphs.2023.11.008] [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: 09/24/2023] [Revised: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
In Vitro Permeation Test (IVPT) is commonly used to evaluate skin penetration of chemicals and performance of dermatological products. For a permeant with low aqueous solubility, an additive that is expected not to alter the skin barrier can be used in the receptor solution to improve permeant solubility. The objective of this study was to (a) evaluate the effects of these additives in IVPT receptor solution on skin permeability of model permeants and skin electrical resistance and (b) determine the solubility of the permeants in these receptor solutions. Bovine serum albumin (BSA), 2-hydroxypropyl-beta-cyclodextrin (HPCD), ethanol, nonionic surfactant Brij-98, and propylene glycol were the additives, and phosphate buffered saline (PBS) was the control. Steady-state skin permeability coefficients and resistances were determined. The receptor solutions examined in this study did not cause a significant increase in skin permeability or decrease in resistance (less than 40 % changes) except 25 % ethanol. The receptor solution containing 25 % ethanol induced an approximately twofold average increase in skin permeability and reduced skin electrical resistance by approximately threefold. The receptor solution of 2.5 % HPCD provided the highest levels of solubility for the model lipophilic permeants, while 0.2 % Brij-98 and 5 % ethanol showed the lowest solubility enhancement from those in PBS.
Collapse
Affiliation(s)
- Minthira Sarnthiratch
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, United States
| | - Lama Alsheddi
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, United States
| | - Patcharawan Nimmansophon
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, United States
| | - Apipa Wanasathop
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, United States
| | - S Kevin Li
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, United States.
| |
Collapse
|
4
|
Dyson E, Sikkink S, Nocita D, Twigg P, Westgate G, Swift T. Evaluating the Irritant Factors of Silicone and Hydrocolloid Skin Contact Adhesives Using Trans-Epidermal Water Loss, Protein Stripping, Erythema, and Ease of Removal. ACS APPLIED BIO MATERIALS 2024; 7:284-296. [PMID: 38150300 PMCID: PMC10792606 DOI: 10.1021/acsabm.3c00874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 12/28/2023]
Abstract
A composite silicone skin adhesive material was designed to improve its water vapor permeability to offer advantages to wearer comfort compared to existing skin adhesive dressings available (including perforated silicone and hydrocolloid products). The chemical and mechanical properties of this novel dressing were analyzed to show that it has a high creep compliance, offering anisotropic elasticity that is likely to place less stress on the skin. A participant study was carried out in which 31 participants wore a novel silicone skin adhesive (Sil2) and a hydrocolloid competitor and were monitored for physiological response to the dressings. Trans-epidermal water loss (TEWL) was measured pre- and postwear to determine impairment of skin barrier function. Sil2 exhibited a higher vapor permeability than the hydrocolloid dressings during wear. Peel strength measurements and dye counter staining of the removed dressings showed that the hydrocolloid had a higher adhesion to the participants' skin, resulting in a greater removal of proteins from the stratum corneum and a higher pain rating from participants on removal. Once the dressings were removed, TEWL of the participants skin beneath the Sil2 was close to normal in comparison to the hydrocolloid dressings that showed an increase in skin TEWL, indicating that the skin had been highly occluded. Analysis of the skin immediately after removal showed a higher incidence of erythema following application of hydrocolloid dressings (>60%) compared to Sil2, (<30%). In summary, this modified silicone formulation demonstrates superior skin protection properties compared to hydrocolloid dressings and is more suitable for use as a skin adhesive.
Collapse
Affiliation(s)
- Edward Dyson
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Stephen Sikkink
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Davide Nocita
- Faculty
of Engineering and Informatics, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Peter Twigg
- Faculty
of Engineering and Informatics, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Gill Westgate
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Thomas Swift
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| |
Collapse
|
5
|
Carbajo JM, Michan-Doña A, Carretero MI, Vela ML, De Gracia JA, Maraver F. Biophysical effects of a natural peloid on normal skin. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2024; 68:143-152. [PMID: 37957435 DOI: 10.1007/s00484-023-02578-1] [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: 04/30/2023] [Revised: 11/02/2023] [Accepted: 11/04/2023] [Indexed: 11/15/2023]
Abstract
A protocol study was designed to examine cutaneous behavior after continuous application of a peloid in the dry mineral residue of Lanjarón-Capuchina natural mineral water. This study aims to analyze the biomechanical behavior of normal skin using various non-invasive bioengineering techniques after the application of this peloid. We determine the effects of its application for 3 months on 38 healthy volunteers (41.4 ± 5.9 years, range 32-58) without a previous history of skin diseases by courtmetry, sebumetry, pH-metry, reviscometry, and tewametry. It was shown that the production of cutaneous sebum is significantly reduced by 6%, trans epidermal skin loss (TEWL) by 21%, skin fatigue by 30%, elasticity increased by 19%, firmness by 5%, and a skin redensification by 6% was obtained under these experimental conditions. Disparate and non-significant results were obtained concerning pH and viscoelasticity. Continuous skin care with the Lanjarón-Capuchina natural peloid modifies skin behavior, normalizing sebaceous secretion, favoring the biomechanical properties of the skin and the skin barrier function without modifying skin homeostasis.
Collapse
Affiliation(s)
- Jose M Carbajo
- Medical Hydrology Group, Department of Radiology, Rehabilitation & Physiotherapy, Complutense University of Madrid, 28040, Madrid, Spain
| | - Alfredo Michan-Doña
- Medical Hydrology Group, Department of Radiology, Rehabilitation & Physiotherapy, Complutense University of Madrid, 28040, Madrid, Spain
- Department of Medicine, Hospital Universitario de Jerez, Biomedical Research and Innovation Institute of Cadiz (INiBICA), 11003, Cádiz, Spain
| | - M Isabel Carretero
- Department Cristalografia, Mineralogia y Quimica Agrícola, Sevilla University, 41012, Sevilla, Spain
| | - María Lorena Vela
- Medical Hydrology Group, Department of Radiology, Rehabilitation & Physiotherapy, Complutense University of Madrid, 28040, Madrid, Spain
- Health and Environment Sciences School, Comahue National University, 8300, Neuquen, Argentina
| | - Jose Antonio De Gracia
- Medical Hydrology Group, Department of Radiology, Rehabilitation & Physiotherapy, Complutense University of Madrid, 28040, Madrid, Spain
| | - Francisco Maraver
- Medical Hydrology Group, Department of Radiology, Rehabilitation & Physiotherapy, Complutense University of Madrid, 28040, Madrid, Spain.
- Professional School of Medical Hydrology, Faculty of Medicine, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040, Madrid, Spain.
| |
Collapse
|
6
|
Petrová E, Chvíla S, Balouch M, Štěpánek F, Zbytovská J. Nanoformulations for dermal delivery of imiquimod: The race of "soft" against "hard". Int J Pharm 2023; 648:123577. [PMID: 37931726 DOI: 10.1016/j.ijpharm.2023.123577] [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: 06/18/2023] [Revised: 10/30/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Imiquimod (IMQ) is an immunostimulating agent used in the treatment of basal cell carcinoma and actinic keratosis. Due to its low solubility and poor skin bioavailability, the dermal formulation of IMQ remains challenging. In analogy to tyre compounds used in Formula 1 racing, we compare four types of nanosystems belonging to three groups: (i) "hard" nanoparticles in the form of IMQ nanocrystals, (ii) "intermediate" nanoparticles in the form of liposomes and lipid nanocapsules, and (iii) "soft" nanoparticles in the form of a nanoemulsion based on oleic acid. The nanoemulsion and nanocrystals were able to incorporate the highest amount of IMQ (at least 2 wt%) compared to liposomes (0.03 wt%) and lipid nanocapsules (0.08 wt%). Regarding size, liposomes, and lipid nanocapsules were rather small (around 40 nm) whereas nanocrystals and nanoemulsion were larger (around 200 nm). All developed nanoformulations showed high efficiency to deliver IMQ into the skin tissue without undesirable subsequent permeation through the skin to acceptor. Especially, the 2 wt% IMQ nanoemulsion accumulated 129 μg/g IMQ in the skin, compared to 34 μg/g of a 5 wt% commercial cream. The effects of the respective nanoparticulate systems were discussed with respect to their possible diffusion kinetics (Brownian motion vs. settling) in the aqueous phase.
Collapse
Affiliation(s)
- Eliška Petrová
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, Prague, Czech Republic
| | - Stanislav Chvíla
- Department of Chemical Engineering, University of Chemistry and Technology Prague, Technická 3, 166 28 Prague 6, Czech Republic
| | - Martin Balouch
- Department of Chemical Engineering, University of Chemistry and Technology Prague, Technická 3, 166 28 Prague 6, Czech Republic
| | - František Štěpánek
- Department of Chemical Engineering, University of Chemistry and Technology Prague, Technická 3, 166 28 Prague 6, Czech Republic
| | - Jarmila Zbytovská
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, Prague, Czech Republic.
| |
Collapse
|
7
|
Kobayashi E, Ling Y, Kobayashi R, Hoshikawa E, Itai E, Sakata O, Okuda S, Naru E, Izumi K. Development of a lip vermilion epithelium reconstruction model using keratinocytes from skin and oral mucosa. Histochem Cell Biol 2023; 160:349-359. [PMID: 37302086 DOI: 10.1007/s00418-023-02206-4] [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: 05/07/2023] [Indexed: 06/13/2023]
Abstract
Lip vermilion is unique and can be distinguished from the adjacent skin and oral mucosa. However, because of the lack of appropriate evaluation tools, skin and/or oral mucosa substitutes such as in vitro vermilion epithelial models have been used for lip product testing. We aimed to develop and characterize a lip vermilion epithelium reconstruction model (LVERM) using skin and oral keratinocytes. LVERM was manufactured by co-culturing primary skin and oral keratinocytes, using a device that allowed the separation of cell seeding, and created an intercalated cell-free zone, referred to as the vermilion part. After removing the device, LVERM construction was completed in 8 days, in a submerged condition. Subsequently, they were placed in an air-liquid interface for 7 days. To determine the epithelial characteristics of LVERM, keratin 2e (KRT2) and small proline-rich protein 3 (SPRR3) expression patterns were examined. The in vivo expression profiles of KRT2 and SPRR3 genes in vermilion were also examined. We found that a continuous multi-layered epithelium was generated in the LVERM that exhibited ortho- and para-keratinization in the skin and oral mucosa parts, respectively. Although an intermediate keratinization pattern was observed in the vermilion part, KRT2 and SPRR3 were co-expressed in the suprabasal layer, consistent with the expression pattern of a single vermilion epithelial model. Clustering analysis revealed that KRT2 and SPRR3 gene expression in vermilion was location-dependent within the sample. Therefore, LVERM can be used as an evaluation tool for lip products and has great importance in innovative approaches for cosmetic testing.
Collapse
Affiliation(s)
- Eri Kobayashi
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | - Yiwei Ling
- Division of Bioinformatics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Ryota Kobayashi
- Division of Biomimetics, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Emi Hoshikawa
- Division of Biomimetics, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Eriko Itai
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | - Osamu Sakata
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | - Shujiro Okuda
- Division of Bioinformatics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Eiji Naru
- Research Laboratories, KOSÉ Corporation, Tokyo, Japan
| | - Kenji Izumi
- Division of Biomimetics, Faculty of Dentistry and Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
| |
Collapse
|
8
|
Zheng H, Xie X, Ling H, You X, Liang S, Lin R, Qiu R, Hou H. Transdermal drug delivery via microneedles for musculoskeletal systems. J Mater Chem B 2023; 11:8327-8346. [PMID: 37539625 DOI: 10.1039/d3tb01441j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
As the population is ageing and lifestyle is changing, the prevalence of musculoskeletal (MSK) disorders is gradually increasing with each passing year, posing a serious threat to the health and quality of the public, especially the elderly. However, currently prevalent treatments for MSK disorders, mainly administered orally and by injection, are not targeted to the specific lesion, resulting in low efficacy along with a series of local and systemic adverse effects. Microneedle (MN) patches loaded with micron-sized needle array, combining the advantages of oral administration and local injection, have become a potentially novel strategy for the administration and treatment of MSK diseases. In this review, we briefly introduce the basics of MNs and focus on the main characteristics of the MSK systems and various types of MN-based transdermal drug delivery (TDD) systems. We emphasize the progress and broad applications of MN-based transdermal drug delivery (TDD) for MSK systems, including osteoporosis, nutritional rickets and some other typical types of arthritis and muscular damage, and in closing summarize the future prospects and challenges of MNs application.
Collapse
Affiliation(s)
- Haibin Zheng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510280, P. R. China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| | - Xuankun Xie
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510280, P. R. China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| | - Haocong Ling
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong 510280, P. R. China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| | - Xintong You
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| | - Siyu Liang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| | - Rurong Lin
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| | - Renjie Qiu
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| | - Honghao Hou
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, P. R. China.
| |
Collapse
|
9
|
Salminen AT, Davis KJ, Felton RP, Nischal N, VonTungeln LS, Beland FA, Derr K, Brown PC, Ferrer M, Katz LM, Kleinstreuer NC, Leshin J, Manga P, Sadrieh N, Xia M, Fitzpatrick SC, Camacho L. Parallel evaluation of alternative skin barrier models and excised human skin for dermal absorption studies in vitro. Toxicol In Vitro 2023; 91:105630. [PMID: 37315744 PMCID: PMC10527924 DOI: 10.1016/j.tiv.2023.105630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 05/24/2023] [Accepted: 06/09/2023] [Indexed: 06/16/2023]
Abstract
Skin permeation is a primary consideration in the safety assessment of cosmetic ingredients, topical drugs, and human users handling veterinary medicinal products. While excised human skin (EHS) remains the 'gold standard' for in vitro permeation testing (IVPT) studies, unreliable supply and high cost motivate the search for alternative skin barrier models. In this study, a standardized dermal absorption testing protocol was developed to evaluate the suitability of alternative skin barrier models to predict skin absorption in humans. Under this protocol, side-by-side assessments of a commercially available reconstructed human epidermis (RhE) model (EpiDerm-200-X, MatTek), a synthetic barrier membrane (Strat-M, Sigma-Aldrich), and EHS were performed. The skin barrier models were mounted on Franz diffusion cells and the permeation of caffeine, salicylic acid, and testosterone was quantified. Transepidermal water loss (TEWL) and histology of the biological models were also compared. EpiDerm-200-X exhibited native human epidermis-like morphology, including a characteristic stratum corneum, but had an elevated TEWL as compared to EHS. The mean 6 h cumulative permeation of a finite dose (6 nmol/cm2) of caffeine and testosterone was highest in EpiDerm-200-X, followed by EHS and Strat-M. Salicylic acid permeated most in EHS, followed by EpiDerm-200-X and Strat-M. Overall, evaluating novel alternative skin barrier models in the manner outlined herein has the potential to reduce the time from basic science discovery to regulatory impact.
Collapse
Affiliation(s)
- Alec T Salminen
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Kelly J Davis
- Toxicologic Pathology Associates, Jefferson, AR, USA
| | - Robert P Felton
- Office of Scientific Coordination, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Nathania Nischal
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Linda S VonTungeln
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Frederick A Beland
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA
| | - Kristy Derr
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Paul C Brown
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Marc Ferrer
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Linda M Katz
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Nicole C Kleinstreuer
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Jonathan Leshin
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Rockville, MD, USA
| | - Prashiela Manga
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Nakissa Sadrieh
- Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, MD, USA
| | - Menghang Xia
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Suzanne C Fitzpatrick
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, USA
| | - Luísa Camacho
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, USA.
| |
Collapse
|
10
|
Płatkowska A, Korzekwa S, Łukasik B, Zerbinati N. Combined Bipolar Radiofrequency and Non-Crosslinked Hyaluronic Acid Mesotherapy Protocol to Improve Skin Appearance and Epidermal Barrier Function: A Pilot Study. Pharmaceuticals (Basel) 2023; 16:1145. [PMID: 37631060 PMCID: PMC10459519 DOI: 10.3390/ph16081145] [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: 07/01/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Age-associated changes in epidermal hydration, pigmentation, thickness and cell renewal influence skin appearance and can lead to laxity, dryness and poor skin tone. The aim of this pilot study was to assess the synergistic effects of a new bipolar radiofrequency plus non-crosslinked hyaluronic acid (HA) mesotherapy protocol compared with radiofrequency alone on skin appearance and markers of epidermal function. METHODS This prospective, single-center, split-face pilot study recruited women aged 25-65 years with dryness and laxity of the facial skin defined by a trans-epidermal water loss (TEWL) value of ≥26 g/m2/h. Subjects were treated with a bipolar radiofrequency device on both sides of the face. This was immediately followed by needle hyaluronic acid (HA) treatment on one side of the face with 2.5 mL of a non-crosslinked HA. Photographic documentation, analysis of epidermal barrier function parameters, and high frequency (HF) ultrasound analysis were performed prior to treatment and at 28 days. RESULTS Twenty female subjects with a mean age of 46 (range 29 to 54) years and dry and lax facial skin were included. TEWL was reduced and skin hydration improved to a greater extent with the combined radiofrequency plus mesotherapy protocol compared with radiofrequency alone (-5.8% vs. +3.9% and +23.1% vs. +1.0%, respectively). The combined protocol was also associated with greater improvements in melanin (-7.5% vs. -1.5%) and erythema values (-7.2% vs. +3.0%), respectively. Ultrasound measures of epidermal thickness and epidermal density were greater after the combined protocol compared with radiofrequency alone (12.0% vs. 5.6% and 57.7% vs. 7.1%, respectively). Both treatments were well-tolerated. CONCLUSIONS The combined bipolar radiofrequency and HA mesotherapy protocol provided greater improvements in skin hydration, firmness and tone compared with radiofrequency alone. The combination treatment was also associated with greater epidermal thickness and density and increased keratinocyte differentiation suggesting a synergistic effect of both treatments on epidermal homeostasis and barrier function. Both treatments were well-tolerated and led to improvements in facial appearance.
Collapse
|
11
|
Ling J, Du Y, Sheng Y, Wang W, Wu H, Chen G, Lv H. Influence of cryopreservation methods of ex vivo rat and pig skin on the results of in vitro permeation test. Eur J Pharm Biopharm 2023:S0939-6411(23)00157-1. [PMID: 37327914 DOI: 10.1016/j.ejpb.2023.06.004] [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: 03/07/2023] [Revised: 06/01/2023] [Accepted: 06/09/2023] [Indexed: 06/18/2023]
Abstract
In vitro permeation test (IVPT) is a frequently used method for in vitro assessment of topical preparations and transdermal drug delivery systems. However, the storage of ex vivo skin for IVPT remains a challenge. Here, two cryopreservation media were chosen to preserve rat and pig skin at -20 °C and -80 °C for further IVPT, namely, 10% DMSO and 10% GLY. The skin viability test confirmed that the skin protective capacity of 10% DMSO and 10% GLY was almost equal. The results of skin viability and IVPT showed that the skin viability and permeability of rat skin in 10%DMSO or 10% GLY were maintained for at least 7 and 30 days at -20 °C and -80 °C compared to fresh skin, respectively; in contrast, those of porcine skin were just maintained for less than 7 days at -20 °C and -80 °C. These results indicated that ex vivo skin for IVPT preserved at -80 °C in 10% DMSO or 10% GLY was optimal. Furthermore, skin permeability was independent of skin barrier integrity. Our study provides reference conditions for preserving IVPT skin, and skin viability can be a potential indicator of IVPT skin.
Collapse
Affiliation(s)
- Jiawei Ling
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Yanan Du
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Yuze Sheng
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Weiqin Wang
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Hangyi Wu
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Guorong Chen
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China
| | - Huixia Lv
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing 211198, China.
| |
Collapse
|
12
|
Simon K, Schneider L, Oberender G, Pirow R, Hutzler C, Luch A, Roloff A. Migration of polycyclic aromatic hydrocarbons from a polymer surrogate through the stratum corneum layer of the skin. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115113. [PMID: 37315362 DOI: 10.1016/j.ecoenv.2023.115113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 06/02/2023] [Accepted: 06/04/2023] [Indexed: 06/16/2023]
Abstract
In this study, we determined partition (Ksc/m) and diffusion (Dsc) coefficients of five different polycyclic aromatic hydrocarbons (PAH) migrating from squalane into and through the stratum corneum (s.c.) layer of the skin. Carcinogenic PAH have previously been detected in numerous polymer-based consumer products, especially those dyed with carbon black. Upon dermal contact with these products, PAH may penetrate into and through the viable layers of the skin by passing the s.c. and thus may become bioavailable. Squalane, a frequent ingredient in cosmetics, has also been used as a polymer surrogate matrix in previous studies. Ksc/m and Dsc are relevant parameters for risk assessment because they allow estimating the potential of a substance to become bioavailable upon dermal exposure. We developed an analytical method involving incubation of pigskin with naphthalene, anthracene, pyrene, benzo[a]pyrene and dibenzo[a,h]pyrene in Franz diffusion cell assays under quasi-infinite dose conditions. PAH were subsequently quantified within individual s.c. layers by gas chromatography coupled to tandem mass spectrometry. The resulting PAH depth profiles in the s.c. were fitted to a solution of Fick's second law of diffusion, yielding Ksc/m and Dsc. The decadic logarithm logKsc/m ranged from -0.43 to +0.69 and showed a trend to higher values for PAH with higher molecular masses. Dsc, on the other hand, was similar for the four higher molecular mass PAH but about 4.6-fold lower than for naphthalene. Moreover, our data suggests that the s.c./viable epidermis boundary layer represents the most relevant barrier for the skin penetration of higher molecular mass PAH. Finally, we empirically derived a mathematical description of the concentration depth profiles that better fits our data. We correlated the resulting parameters to substance specific constants such as the logarithmic octanol-water partition coefficient logP, Ksc/m and the removal rate at the s.c./viable epidermis boundary layer.
Collapse
Affiliation(s)
- Konstantin Simon
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2-4, 14195 Berlin, Germany.
| | - Lidia Schneider
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany
| | - Gila Oberender
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; Berliner Hochschule für Technik (BHT), Luxemburger Str. 10, 13353 Berlin, Germany
| | - Ralph Pirow
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany
| | - Christoph Hutzler
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany
| | - Andreas Luch
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; Department of Biology, Chemistry, Pharmacy, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2-4, 14195 Berlin, Germany
| | - Alexander Roloff
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany.
| |
Collapse
|
13
|
Simon K, Oberender G, Roloff A. Continuous Removal of Single Cell Layers by Tape Stripping the Stratum Corneum - a Histological Study. Eur J Pharm Biopharm 2023:S0939-6411(23)00110-8. [PMID: 37149231 DOI: 10.1016/j.ejpb.2023.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/07/2023] [Accepted: 04/26/2023] [Indexed: 05/08/2023]
Abstract
Studies on the penetration of toxicologically or pharmaceutically relevant substances through the skin and, more specifically, through the stratum corneum (s.c.) often rely on the well-established method of tape stripping. Tape stripping involves the removal of skin layers by means of adhesive tape, which is usually followed by quantification of dermally applied substances in these layers. However, the amount of s.c. removed by each individual tape strip is still a matter of scientific debate. While some studies imply that the amount of s.c. adhering to each tape strip decreases with increasing depth into the s.c., others observed a constant removal rate. All these studies rely on the quantification of the amount of s.c. captured on individual or pooled tape strips. Here, we present an approach whereby we measured the amount of s.c. remaining on excised porcine skin in the process of tape stripping. Staining and bloating of the s.c. allowed to measure its thickness and to count individual s.c. layers, respectively. Histologically, we show that the s.c. remaining on the skin decreased linearly as a function of strips taken. We found that each tape strip removes about 0.4µm of s.c., which corresponds to approximately one cellular layer. With a high coefficient of determination (r2>0.95), we were able to linearly correlate the thickness of the remaining s.c., the number of remaining cell layers and the number of tape strips applied. Furthermore, we elaborate on possible reasons for the discrepancies reported in the scientific literature regarding the amount of s.c. removed by each tape strip.
Collapse
Affiliation(s)
- Konstantin Simon
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; Institute of Pharmacy, Department of Biology, Chemistry, Pharmacy, Freie Universität Berlin, 14195 Berlin, Germany.
| | - Gila Oberender
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany; Berliner Hochschule für Technik (BHT), Luxemburger Str. 10, 13353 Berlin, Germany
| | - Alexander Roloff
- German Federal Institute for Risk Assessment (BfR), Department of Chemical and Product Safety, Max-Dohrn-Str. 8-10, 10589 Berlin, Germany.
| |
Collapse
|
14
|
Alsamad F, Stamatas GN. Directional assessment of the skin barrier function in vivo. Skin Res Technol 2023; 29:e13346. [PMID: 37231932 PMCID: PMC10182387 DOI: 10.1111/srt.13346] [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: 03/23/2023] [Accepted: 05/02/2023] [Indexed: 05/27/2023]
Abstract
INTRODUCTION The fundamental function of the epidermis is to provide an inside-out barrier to water loss and an outside-in barrier to penetration of external irritants. Transepidermal water loss (TEWL) has been extensively used as a method of estimating the skin barrier quality, typically without any consideration of directionality. The validity of TEWL as an estimate of skin permeability to external substances has been controversial in vitro and in vivo. The aim of this work was to assess the relationship between TEWL and the penetration of a topically applied external marker (caffeine) in healthy skin in vivo before and following a challenge to the barrier. METHODS The skin barrier was challenged by application of aqueous solutions of mild cleanser products under occlusion for 3 h on the forearms of nine human participants. Skin barrier quality was evaluated before and after the challenge by measuring the TEWL rate and the permeated amount of topically applied caffeine using in vivo confocal Raman microspectroscopy. RESULTS No skin irritation was observed following the skin barrier challenge. TEWL rates and the caffeine penetrated amount in the stratum corneum after the challenge were not correlated. A weak correlation was observed when the changes were corrected to water-only treatment. TEWL values can be influenced by environmental conditions as well as the skin temperature and water content. CONCLUSIONS Measuring TEWL rates is not always representative of the outside-in barrier. TEWL may be useful in differentiating large changes in skin barrier function (e.g., between healthy and compromised skin) but is less sensitive to small variations following topical application of mild cleansers.
Collapse
Affiliation(s)
- Fanny Alsamad
- Essential Health Translational ScienceJohnson & Johnson Santé Beauté FranceIssy‐Les‐MoulineauxFrance
| | - Georgios N. Stamatas
- Essential Health Translational ScienceJohnson & Johnson Santé Beauté FranceIssy‐Les‐MoulineauxFrance
| |
Collapse
|
15
|
Kalvodová A, Dvořáková K, Petrová E, Michniak-Kohn BB, Zbytovská J. The Contest of Nanoparticles: Searching for the Most Effective Topical Delivery of Corticosteroids. Pharmaceutics 2023; 15:pharmaceutics15020513. [PMID: 36839836 PMCID: PMC9962773 DOI: 10.3390/pharmaceutics15020513] [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] [Received: 11/30/2022] [Revised: 01/16/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Owing to their complicated pathophysiology, the treatment of skin diseases necessitates a complex approach. Conventional treatment using topical corticosteroids often results in low effectiveness and the incidence of local or even systemic side effects. Nanoformulation of potent anti-inflammatory drugs has been selected as an optimal strategy for enhanced topical delivery of corticosteroids. In order to assess the efficiency of various nanoformulations, we formulated hydrocortisone (HC) and hydrocortisone-17-butyrate (HCB) into three different systems: lipid nanocapsules (LNC), polymeric nanoparticles (PNP), and ethosomes (ETZ). The systems were characterized using dynamic light scattering for their particle size and uniformity and the morphology of nanoparticles was observed by transmission electron microscopy. The nanosystems were tested using ex vivo full thickness porcine and human skin for the delivery of HC and HCB. The skin penetration was observed by confocal microscopy of fluorescently labelled nanosystems. ETZ were proposed as the most effective delivery system for both transdermal and dermal drug targeting but were also found to have a profound effect on the skin barrier with limited restoration. LNC and PNP were found to have significant effects in the dermal delivery of the actives with only minimal transdermal penetration, especially in case of HCB administration.
Collapse
Affiliation(s)
- Aneta Kalvodová
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Kristýna Dvořáková
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Eliška Petrová
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Bozena B. Michniak-Kohn
- Center for Dermal Research (CDR), Life Sciences Building, Rutgers University, Piscataway, NJ 08854, USA
| | - Jarmila Zbytovská
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Charles University, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
- Correspondence:
| |
Collapse
|
16
|
Martinovic D, Tokic D, Usljebrka M, Lupi-Ferandin S, Cigic L, Vanjaka Rogosic L, Ercegovic S, Kontic M, Kumrić M, Rusic D, Vilovic M, Leskur M, Bozic J. The Association between the Level of Advanced Glycation End Products and Objective Skin Quality Parameters. Life (Basel) 2023; 13:life13020256. [PMID: 36836618 PMCID: PMC9961659 DOI: 10.3390/life13020256] [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] [Received: 12/31/2022] [Revised: 01/13/2023] [Accepted: 01/14/2023] [Indexed: 01/18/2023] Open
Abstract
Advanced glycation end products (AGEs) represent an endogenously produced or exogenously derived group of compounds derived from nonenzymatic glycation. Recent experimental studies are suggesting that AGEs could play an important role in the skin's quality and its aging process. Hence, the aim of this study was to clinically evaluate the AGEs and skin quality parameters across different age groups in the general population. The study included 237 participants. Melanin, erythema, hydration, friction and transepidermal water loss (TEWL) were evaluated using noninvasive probes, while AGEs were evaluated using a skin autofluorescence reader. There was a significant positive correlation between AGEs and the amount of melanin (p < 0.001), erythema (p < 0.001) and TEWL (p < 0.001), while there was a significant negative correlation between AGEs and hydration (p < 0.001) and friction (p < 0.001). After dividing the sample into three groups depending on their age, in all three groups, there was a significant positive correlation between AGEs and the melanin count (p < 0.001) and TEWL (p < 0.001), while there was a significant negative correlation between AGEs and skin hydration (p < 0.001). Multiple linear regression analysis showed that the level of AGEs as a dependent variable retained a significant association with age (p < 0.001), melanin (p < 0.001), erythema (p = 0.005) and TEWL (p < 0.001) as positive predictors. Moreover, AGEs retained a significant association with skin hydration (p < 0.001) and friction (p = 0.017) as negative predictors. These outcomes imply that AGEs could be linked with the complex physiology of the skin and its aging process.
Collapse
Affiliation(s)
- Dinko Martinovic
- Department of Maxillofacial Surgery, University Hospital of Split, 21000 Split, Croatia
| | - Daria Tokic
- Department of Anesthesiology and Intensive Care, University Hospital of Split, 21000 Split, Croatia
| | - Mislav Usljebrka
- Department of Maxillofacial Surgery, University Hospital of Split, 21000 Split, Croatia
| | - Slaven Lupi-Ferandin
- Department of Maxillofacial Surgery, University Hospital of Split, 21000 Split, Croatia
| | - Livia Cigic
- Department of Maxillofacial Surgery, University Hospital of Split, 21000 Split, Croatia
| | - Lucija Vanjaka Rogosic
- Department of Dermatovenerology, University of Split School of Medicine, 21000 Split, Croatia
- Private Dermatovenerology Clinic, 21000 Split, Croatia
| | - Sasa Ercegovic
- Department of Maxillofacial Surgery, University Hospital of Split, 21000 Split, Croatia
| | - Mirko Kontic
- Department of Otorhinolaryngology, University Hospital of Split, 21000 Split, Croatia
| | - Marko Kumrić
- Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia
| | - Doris Rusic
- Department of Pharmacy, University of Split School of Medicine, 21000 Split, Croatia
| | - Marino Vilovic
- Department of Pharmacy, University of Split School of Medicine, 21000 Split, Croatia
| | - Mateo Leskur
- Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia
| | - Josko Bozic
- Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia
- Correspondence: ; Tel.: +385-21-557-871; Fax: +385-21-557-905
| |
Collapse
|
17
|
Vora D, Garimella HT, German CL, Banga AK. Microneedle and iontophoresis mediated delivery of methotrexate into and across healthy and psoriatic skin. Int J Pharm 2022; 618:121693. [PMID: 35331833 PMCID: PMC9022631 DOI: 10.1016/j.ijpharm.2022.121693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/13/2022] [Accepted: 03/18/2022] [Indexed: 10/18/2022]
Abstract
Psoriasis is a condition of the skin which involves scales, dry patches, and inflammation. Methotrexate (logP: -1.8, MW:454.44 g/mol) is administered orally or intravenously to treat psoriasis. The first-pass metabolism and systemic toxicity can be avoided by administration via skin. Topical and transdermal delivery of methotrexate using iontophoresis and microneedles, alone and in combination was investigated using full-thickness healthy human skin. It is also equally relevant to evaluate the delivery into and across damaged/diseased skin. Hence, this study investigated the delivery of methotrexate using ex vivo healthy and psoriatic human skin to understand the effect of skin disease condition on delivery of methotrexate via skin. A lower resistance and a higher TEWL for psoriatic skin indicated damaged barrier function, while histology studies indicated epithelial hyperproliferation and elongated rete ridges. Using the optimized iontophoretic parameters, there was no significant difference in receptor delivery for psoriatic skin (39.51 ± 4.45 µg/sq.cm) as compared to healthy skin (43.15 ± 0.83 µg/sq.cm). However, methotrexate delivery into psoriatic skin (126.23 ± 24.65 µg/sq.cm) was significantly higher as compared to healthy skin (12.02 ± 4.89 µg/sq.cm). Thus, significantly higher total delivery was observed from psoriatic skin than healthy skin.
Collapse
Affiliation(s)
- Deepal Vora
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA
| | | | - Carrie L German
- CFD Research Corporation, 701 McMillian Way, Huntsville, AL 35806, USA
| | - Ajay K Banga
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA.
| |
Collapse
|
18
|
Subedi L, Pandey P, Shim JH, Kim KT, Cho SS, Koo KT, Kim BJ, Park JW. Preparation of topical bimatoprost with enhanced skin infiltration and in vivo hair regrowth efficacy in androgenic alopecia. Drug Deliv 2022; 29:328-341. [PMID: 35040730 PMCID: PMC8774136 DOI: 10.1080/10717544.2022.2027046] [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] [Indexed: 11/30/2022] Open
Abstract
To prepare a topical formulation of bimatoprost (BIM) with high skin permeability, we designed a solvent mixture system composed of ethanol, diethylene glycol monoethyl ether, cyclomethicone, and butylated hydroxyanisole, serving as a volatile solvent, nonvolatile co-solvent, spreading agent, and antioxidant, respectively. The ideal topical BIM formulation (BIM–TF#5) exhibited 4.60-fold higher human skin flux and a 529% increase in dermal drug deposition compared to BIM in ethanol. In addition, compared to the other formulations, BIM–TF#5 maximally activated human dermal papilla cell proliferation at a concentration of 5 μM BIM, equivalent to 10 μM minoxidil. Moreover, BIM–TF#5 (0.3% [w/w] BIM) significantly promoted hair regrowth in the androgenic alopecia mouse model and increased the area covered by hair at 10 days by 585% compared to the vehicle-treated mice, indicating that entire telogen area transitioned into the anagen phase. Furthermore, at day 14, the hair weight of mice treated with BIM–TF#5 (5% [w/w] BIM) was 8.45- and 1.30-fold greater than in the 5% (w/w) BIM in ethanol and 5% (w/v) minoxidil treated groups, respectively. In the histological examination, the number and diameter of hair follicles in the deep subcutis were significantly increased in the BIM–TF#5 (0.3 or 5% [w/w] BIM)-treated mice compared to the mice treated with vehicle or 5% (w/w) BIM in ethanol. Thus, our findings suggest that BIM–TF#5 is an effective formulation to treat scalp alopecia, as part of a novel therapeutic approach involving direct prostamide F2α receptor-mediated stimulation of dermal papilla cells within hair follicles.
Collapse
Affiliation(s)
- Laxman Subedi
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, Republic of Korea
| | - Prashant Pandey
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, Republic of Korea
| | - Jung-Hyun Shim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, Republic of Korea.,College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam, Republic of Korea
| | - Ki-Taek Kim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, Republic of Korea.,College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam, Republic of Korea
| | - Seung-Sik Cho
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, Republic of Korea.,College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam, Republic of Korea
| | - Kyo-Tan Koo
- BioBelief Co., Ltd., Seoul, Republic of Korea
| | - Beum Joon Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Jin Woo Park
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam, Republic of Korea.,College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam, Republic of Korea
| |
Collapse
|
19
|
Dasht Bozorg B, Bhattaccharjee SA, Somayaji MR, Banga AK. Topical and transdermal delivery with diseased human skin: passive and iontophoretic delivery of hydrocortisone into psoriatic and eczematous skin. Drug Deliv Transl Res 2022; 12:197-212. [PMID: 33432519 PMCID: PMC9351627 DOI: 10.1007/s13346-021-00897-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2021] [Indexed: 10/22/2022]
Abstract
Psoriasis and atopic dermatitis (eczema) are both common immune-mediated inflammatory skin diseases associated with changes in skin's stratum corneum lipid structure and barrier functionality. The present study aimed to investigate healthy, eczematous, and psoriatic excised human tissue for the effect of non-infectious skin diseases on skin characteristics (surface color, pH, transepidermal water loss, electrical resistance, and histology), as well as on permeation and retention profile of hydrocortisone. Further, differences in percutaneous absorption on application of iontophoresis on healthy and diseased skin were also investigated. Measurements of transepidermal water loss and electrical resistance showed a significant difference in psoriasis skin samples indicating a damaged barrier function. In vitro permeation studies on full-thickness human skin using vertical diffusion cells further confirmed these results as the drug amount retained in the psoriatic tissue was significantly higher when compared with the other groups. Despite no significant difference, the presence of the drug in the receptor chamber in both diseased groups can be concerning as it suggests the increased possibility of systemic absorption and adverse reactions associated with it in the use of topical corticosteroids. Application of anodal iontophoresis resulted in greater distribution of hydrocortisone into deeper layers of skin and the receptor chamber, in comparison to passive permeation. However, no significant differences were observed due to the healthy or diseased condition of skin.
Collapse
Affiliation(s)
- Behnam Dasht Bozorg
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, 30341, Atlanta, GA, USA
| | - Sonalika A Bhattaccharjee
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, 30341, Atlanta, GA, USA
| | | | - Ajay K Banga
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, 30341, Atlanta, GA, USA.
| |
Collapse
|
20
|
Dvořáková K, Štěpánek P, Kroupová J, Zbytovská J. N-Alkylmorpholines: Potent Dermal and Transdermal Skin Permeation Enhancers. Pharmaceutics 2021; 14:64. [PMID: 35056959 PMCID: PMC8778526 DOI: 10.3390/pharmaceutics14010064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/22/2021] [Accepted: 12/25/2021] [Indexed: 12/26/2022] Open
Abstract
Transdermal drug delivery is an attractive non-invasive method offering numerous advantages over the conventional routes of administration. The main obstacle to drug transport is, however, the powerful skin barrier that needs to be modulated, for example, by transdermal permeation enhancers. Unfortunately, there are still only a few enhancers showing optimum properties including low toxicity and reversibility of enhancing effects. For this reason, we investigated a series of new N-alkylmorpholines with various side chains as potential enhancers in an in vitro permeation study, using three model permeants (theophylline, indomethacin, diclofenac). Moreover, electrical impedance, transepidermal water loss, cellular toxicity and infrared spectroscopy measurements were applied to assess the effect of enhancers on skin integrity, reversibility, toxicity and enhancers' mode of action, respectively. Our results showed a bell-shaped relationship between the enhancing activity and the hydrocarbon chain length of the N-alkylmorpholines, with the most efficient derivatives having 10-14 carbons for both transdermal and dermal delivery. These structures were even more potent than the unsaturated oleyl derivative. The best results were obtained for indomethacin, where particularly the C10-14 derivatives showed significantly stronger effects than the traditional enhancer Azone. Further experiments revealed reversibility in the enhancing effect, acceptable toxicity and a mode of action based predominantly on interactions with stratum corneum lipids.
Collapse
Affiliation(s)
- Kristýna Dvořáková
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
| | - Petr Štěpánek
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
| | - Jiřina Kroupová
- Department of Chemical Engineering, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
| | - Jarmila Zbytovská
- Department of Organic Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic;
| |
Collapse
|
21
|
Chiang C, Maibach HI. How many skin barriers haveth we: Percutaneous egression of ions? Skin Res Technol 2021; 28:382-387. [PMID: 34751477 PMCID: PMC9907618 DOI: 10.1111/srt.13119] [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: 08/20/2021] [Accepted: 10/17/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Skin provides critical barrier properties that enable terrestrial life. Myriad research has focused on the "water barrier" to transepidermal water loss (TEWL) despite there being a multitude of skin barrier properties. We asked what other barrier properties may have been overlooked and compiled data demonstrating the "electrolyte barrier" to be of potential clinical relevance. METHODS A literature search was conducted through PubMed, Embase, Google Scholar, and Web of Science databases for the following keywords: "transepidermal" or "epidermal" or "cutaneous" or "skin" or "percutaneous" and "ion" or "sodium" or "chloride" or "potassium" or "electrolyte" and "flux" or "egression." Textbooks at the University of California, San Francisco were also hand reviewed. Experimental studies quantifying in vivo or ex vivo percutaneous egression of ions in response to human skin barrier perturbation were included. RESULTS Experimental damage to skin, mostly by tape-stripping, frequently induced increased ion flux rates through the epidermis, in addition to increases in TEWL values. Interestingly, barrier perturbation did not always result in a concomitant rise in TEWL and transepidermal ion flux rates, such as in delipidization, indicating a distinction between the two barriers. CONCLUSION Quantifying the percutaneous egression of ions in response to physical or chemical alterations may offer additional data that are not to be captured with TEWL studies exclusively. Continued efforts should be made to: (1) advance this technique as a method of assessing skin status and (2) enhance our understanding of other barriers and mechanisms.
Collapse
Affiliation(s)
- Chavy Chiang
- School of Medicine and Dentistry, University of Rochester, Rochester, New York, USA
| | - Howard I Maibach
- Department of Dermatology, University of California, San Francisco, California, USA
| |
Collapse
|
22
|
Jhanker Y, Mbano MN, Ponto T, Espartero LJL, Yamada M, Prow T, Benson HAE. Comparison of physical enhancement technologies in the skin permeation of methyl amino levulinic acid (mALA). Int J Pharm 2021; 610:121258. [PMID: 34740760 DOI: 10.1016/j.ijpharm.2021.121258] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/20/2021] [Accepted: 10/28/2021] [Indexed: 11/19/2022]
Abstract
Physical drug delivery enhancement in skin has been shown to enhance cosmeceutical actives efficacy. Among the physical drug delivery enhancement technologies, microneedle is the most commercially successful technology. However, there are pros and cons like other physical enhancement technologies including variabilities in penetration depth and lack of efficacy. In this study, three physical topical dug delivery enhancements, elongated microparticles, microneedles and dermaroller, were applied to ex vivo pig skin and compared. The model topical drug that was used is 5-Aminolevulinic acid, the most commonly used photosensitiser prodrug. The skin was pre-treated before mounting on to Franz cell diffusion apparatus. Transdermal epidermal water loss was measured, and receptor fluids were collected at 7 time points for HPLC analysis. The results show that all three technologies disrupted the skin surface. All microporation pre-treatments significantly enhanced mALA cumulative permeation over 8 h (p < 0.001), with the 24x dermaroller significantly greater than 12x dermaroller (p < 0.001) and both dermaroller treatments significantly greater than microneedles and elongated microparticles (p < 0.05). The microporation pre-treatments all significantly increased mALA deposition in the stratum corneum and deeper skin tissues compared to passive administration, with deposition increases ranging from 3.6x to 15.1x that of passive administration. The DR pretreatment showed highest enhancement ratios (amount 5-Aminolevulinic acid in skin at 8 h following pretreatment v passive) with the following order of enhancement: 24x dermaroller > 12x dermaroller > microneedles > elongated microparticles. In conclusion, physical enhancement tools such as microneedles, dermarollers and elongated microparticles demonstrated significant penetration and retention of mALA through/into piglet skin. Further study is needed to determine the cost, dose and patient compliance.
Collapse
Affiliation(s)
- Yeakuty Jhanker
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Melinda N Mbano
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Thellie Ponto
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | | | - Miko Yamada
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | - Tarl Prow
- Future Industries Institute, University of South Australia, Adelaide, Australia; Skin Research Centre, York Biomedical Research Institute, Hull York Medical School, University of York, York, United Kingdom
| | - Heather A E Benson
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia.
| |
Collapse
|
23
|
Zhang D, Chen B, Mu Q, Wang W, Liang K, Wang L, Wang Q. Topical delivery of gambogic acid assisted by the combination of low-frequency ultrasound and chemical enhancers for chemotherapy of cutaneous melanoma. Eur J Pharm Sci 2021; 166:105975. [PMID: 34391880 DOI: 10.1016/j.ejps.2021.105975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/30/2021] [Accepted: 08/10/2021] [Indexed: 10/20/2022]
Abstract
Anti-cutaneous melanoma activity of the skin-delivered gambogic acid (GA) has been reported in our previous study. However, it is difficult for GA to diffuse passively through intact skin without any enhancement means. In this study, a combination of chemical enhancers (EN: azone and propylene glycol) and physical ultrasound (US) was used to improve the percutaneous permeation of GA and enhance the anti-melanoma activity. The enhancement effect of the combination of EN and US (EN-US) on GA in vitro and in vivo was studied, and the enhancement mechanism and skin irritation were also evaluated. We showed that the parameters of US application at a constant frequency (30 kHz) with a duty cycle of 100% and intensity of 1.75 W/cm2 for 20 min were optimal. In vitro, EN-US showed a considerable enhancement of the permeation of GA, and the enhancement effect was stronger than that with the use of EN or US alone. In vivo antitumor study showed that the tumor growth was significantly inhibited after percutaneous administration of GA by EN-US, more than in the intravenous injection group. The penetration enhancement mechanism revealed that EN-US not only altered the structure of lipid bilayers and keratins to reduce the barrier effect of the stratum corneum but also produced diffusion channels in the skin under the cavitation effect of US, thereby promoting the skin penetration of GA. In addition, there was no observable skin irritation in mice after treatment with EN-US. Our study demonstrated that the combination of EN and US improved the skin permeation and retention of GA to enhance the anti-melanoma activity. This method also provides technical guidance for the future development of topical and transdermal therapeutic system of GA.
Collapse
Affiliation(s)
- Ding Zhang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, Liaoning 116024, China
| | - Boqi Chen
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, Liaoning 116024, China
| | - Qingke Mu
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Wei Wang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, Liaoning 116024, China
| | - Kaili Liang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, Liaoning 116024, China
| | - Liyan Wang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, Liaoning 116024, China
| | - Qing Wang
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian, Liaoning 116024, China.
| |
Collapse
|
24
|
Resistivity Technique for the Evaluation of the Integrity of Buccal and Esophageal Epithelium Mucosa for In Vitro Permeation Studies: Swine Buccal and Esophageal Mucosa Barrier Models. Pharmaceutics 2021; 13:pharmaceutics13050643. [PMID: 33946622 PMCID: PMC8147247 DOI: 10.3390/pharmaceutics13050643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 11/17/2022] Open
Abstract
Permeation assays are important for the development of topical formulations applied on buccal mucosa. Swine buccal and esophageal epithelia are usually used as barriers for these assays, while frozen epithelia have been used to optimize the experimental setup. However, there is no consensus on these methods. In transdermal studies, barrier integrity has been evaluated by measuring electrical resistance (ER) across the skin, which has been demonstrated to be a simple, fast, safe, and cost-effective method. Therefore, the aims here were to investigate whether ER might also be an effective method to evaluate buccal and esophageal epithelium mucosa integrity for in vitro permeation studies, and to establish a cut-off ER value for each epithelium mucosa model. We further investigated whether buccal epithelium could be substituted by esophageal epithelium in transbuccal permeation studies, and whether their permeability and integrity were affected by freezing at -20 °C for 3 weeks. Fresh and frozen swine buccal and esophageal epithelia were mounted in Franz diffusion cells and were then submitted to ER measurement. Permeation assays were performed using lidocaine hydrochloride as a hydrophilic drug model. ER was shown to be a reliable method for evaluating esophageal and buccal epithelia. The esophageal epithelium presented higher permeability compared to the buccal epithelium. For both epithelia, freezing and storage led to decreased electrical resistivity and increased permeability. We conclude that ER may be safely used to confirm tissue integrity when it is equal to or above 3 kΩ for fresh esophageal mucosa, but not for buccal epithelium mucosa. However, the use of esophageal epithelium in in vitro transmucosal studies could overestimate the absorption of hydrophilic drugs. In addition, fresh samples are recommended for these experiments, especially when hydrophilic drugs are involved.
Collapse
|
25
|
Subedi L, Song SY, Jha SK, Lee SH, Pangeni R, Koo KT, Kim BJ, Cho SS, Park JW. Preparation of Topical Itraconazole with Enhanced Skin/Nail Permeability and In Vivo Antifungal Efficacy against Superficial Mycosis. Pharmaceutics 2021; 13:pharmaceutics13050622. [PMID: 33925457 PMCID: PMC8145258 DOI: 10.3390/pharmaceutics13050622] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, a stable and highly skin-permeable topical delivery system for itraconazole (ITZ) was designed to provide effective treatment against superficial mycosis. Herein, ITZ was incorporated into a solution composed of ethanol, benzyl alcohol, hydrochloric acid, Transcutol P, and cyclomethicone as a delivery vehicle, solubilizer, protonating agent, permeation enhancer, and spreading agent, respectively. At 72 h, the optimal topical ITZ formulation (ITZ–TF#11) exhibited 135% enhanced skin permeability, which led to increases in drug deposition in the stratum corneum, epidermis, and dermis of 479%, 739%, and 2024%, respectively, compared with the deposition of 1% ITZ in ethanol (control). Moreover, on day 7, ITZ–TF#11 demonstrated 2.09- and 2.30-fold enhanced nail flux and drug deposition, compared with the control. At a dose of 40 mg/kg/day, ITZ–TF#11 showed 323% greater lesion recovery, a 165% lower mean erythema severity score, and a 37% lower mean logarithm of viable fungal cells in skin in the treated area, compared with mice that received oral ITZ at the same dose. Overall, the findings imply that ITZ–TF#11 is a superior alternative to oral ITZ for treatment of superficial mycosis.
Collapse
Affiliation(s)
- Laxman Subedi
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam 58554, Korea; (L.S.); (S.-Y.S.); (S.K.J.); (S.-H.L.)
| | - Seung-Yub Song
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam 58554, Korea; (L.S.); (S.-Y.S.); (S.K.J.); (S.-H.L.)
| | - Saurav Kumar Jha
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam 58554, Korea; (L.S.); (S.-Y.S.); (S.K.J.); (S.-H.L.)
| | - Sung-Ho Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam 58554, Korea; (L.S.); (S.-Y.S.); (S.K.J.); (S.-H.L.)
| | - Rudra Pangeni
- Department of Pharmacy, College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam 58554, Korea;
| | | | - Beum Joon Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul 06973, Korea;
| | - Seung-Sik Cho
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam 58554, Korea; (L.S.); (S.-Y.S.); (S.K.J.); (S.-H.L.)
- Department of Pharmacy, College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam 58554, Korea;
- Correspondence: (S.-S.C.); (J.W.P.); Tel.: +82-61-450-2687 (S.-S.C.); +82-61-450-2704 (J.W.P.)
| | - Jin Woo Park
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Jeonnam 58554, Korea; (L.S.); (S.-Y.S.); (S.K.J.); (S.-H.L.)
- Department of Pharmacy, College of Pharmacy and Natural Medicine Research Institute, Mokpo National University, Jeonnam 58554, Korea;
- Correspondence: (S.-S.C.); (J.W.P.); Tel.: +82-61-450-2687 (S.-S.C.); +82-61-450-2704 (J.W.P.)
| |
Collapse
|
26
|
Barbalho GN, Matos BN, Espirito Santo MEL, Silva VR, Chaves SB, Gelfuso GM, Cunha‐Filho M, Gratieri T. In vitro skin model for the evaluation of burn healing drug delivery systems. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
27
|
Zaid Alkilani A, Hamed R, Hussein G, Alnadi S. Nanoemulsion-based patch for the dermal delivery of ascorbic acid. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.1880924] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ahlam Zaid Alkilani
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa, Jordan
| | - Rania Hamed
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Ghaid Hussein
- Department of Pharmacy, Faculty of Pharmacy, Zarqa University, Zarqa, Jordan
| | - Sabreen Alnadi
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| |
Collapse
|
28
|
Knoth K, Zäh RK, Veldung B, Burgio D, Wiegand B, Smola H, Bock U, Lehr CM, Hittinger M, Groß H. Development and evaluation of a quality control system based on transdermal electrical resistance for skin barrier function in vitro. Skin Res Technol 2021; 27:668-675. [PMID: 33404151 DOI: 10.1111/srt.12998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/25/2020] [Accepted: 12/05/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND In vitro skin permeation experiments are highly relevant for pharmaceutical, cosmetic, agricultural developments, and regulatory evaluation. A key requirement is the skin barrier integrity, that is accompanied by an intact stratum corneum (SC) which implements high skin quality. A variety of integrity tests are currently available, for example, measurement of transepidermal water loss, monitoring the permeation of tritiated water and the measurement of transdermal electrical resistance (TER). MATERIALS AND METHODS We aimed for a non-destructive examination of barrier integrity as quality control system, based on TER. Therefore, the in-house developed instrument SkinTER measures electrical resistance on excised human skin samples in a non-invasive and easy-to-use pattern. In this proof of concept study, we compared three human in vitro skin models with focus on their TER and permeation properties. The skin integrity was impaired to mimic conditions of skin during age, lifestyle (eg, shaving) or diseases (eg, obesity, psoriasis, and atopic dermatitis). The OECD permeation marker caffeine was correlated to the corresponding TER value. RESULTS A correlation between both was obtained by having a Pearson coefficient of -0.830. Hereby, a minimum TER value for intact skin samples of ~1.77 kΩ*cm2 was suggested. Intact samples are significantly different (α = ≤0.05) to their impaired counterparts in flux and TER values. CONCLUSION The new SkinTER instrument gives a quick and non-invasive feedback on skin quality before a permeation experiment.
Collapse
Affiliation(s)
- Katharina Knoth
- Department of Drug Delivery, PharmBioTec GmbH, Saarbrücken, Germany
| | | | - Barbara Veldung
- Dr. med. Barbara Veldung, Specialist in Plastic and Aesthetic Surgery, Saarbrücken, Germany
| | | | - Birgit Wiegand
- Department of Drug Delivery, PharmBioTec GmbH, Saarbrücken, Germany
| | | | - Udo Bock
- Bock Project Management, Tawern, Germany
| | - Claus-Michael Lehr
- Department of Biopharmaceutics and Pharmaceutical Technology, Department of Pharmacy, Saarland University, Saarbrücken, Germany.,Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarbrücken, Germany
| | - Marius Hittinger
- Department of Drug Delivery, PharmBioTec GmbH, Saarbrücken, Germany.,3RProducts Marius Hittinger, Blieskastel, Germany
| | - Henrik Groß
- Department of Drug Delivery, PharmBioTec GmbH, Saarbrücken, Germany
| |
Collapse
|
29
|
Sarango-Granda P, Silva-Abreu M, Calpena AC, Halbaut L, Fábrega MJ, Rodríguez-Lagunas MJ, Díaz-Garrido N, Badia J, Espinoza LC. Apremilast Microemulsion as Topical Therapy for Local Inflammation: Design, Characterization and Efficacy Evaluation. Pharmaceuticals (Basel) 2020; 13:484. [PMID: 33371334 PMCID: PMC7767333 DOI: 10.3390/ph13120484] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 12/21/2022] Open
Abstract
Apremilast (APR) is a selective phosphodiesterase 4 inhibitor administered orally in the treatment of moderate-to-severe plaque psoriasis and active psoriatic arthritis. The low solubility and permeability of this drug hinder its dermal administration. The purpose of this study was to design and characterize an apremilast-loaded microemulsion (APR-ME) as topical therapy for local skin inflammation. Its composition was determined using pseudo-ternary diagrams. Physical, chemical and biopharmaceutical characterization were performed. Stability of this formulation was studied for 90 days. Tolerability of APR-ME was evaluated in healthy volunteers while its anti-inflammatory potential was studied using in vitro and in vivo models. A homogeneous formulation with Newtonian behavior and droplets of nanometric size and spherical shape was obtained. APR-ME released the incorporated drug following a first-order kinetic and facilitated drug retention into the skin, ensuring a local effect. Anti-inflammatory potential was observed for its ability to decrease the production of IL-6 and IL-8 in the in vitro model. This effect was confirmed in the in vivo model histologically by reduction in infiltration of inflammatory cells and immunologically by decrease of inflammatory cytokines IL-8, IL-17A and TNFα. Consequently, these results suggest that this formulation could be used as an attractive topical treatment for skin inflammation.
Collapse
Affiliation(s)
- Paulo Sarango-Granda
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (P.S.-G.); (M.S.-A.); (L.H.); (L.C.E.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Marcelle Silva-Abreu
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (P.S.-G.); (M.S.-A.); (L.H.); (L.C.E.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Ana Cristina Calpena
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (P.S.-G.); (M.S.-A.); (L.H.); (L.C.E.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - Lyda Halbaut
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (P.S.-G.); (M.S.-A.); (L.H.); (L.C.E.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
| | - María-José Fábrega
- Department of Experimental and Health Sciences, Parc de Recerca Biomèdica de Barcelona, University Pompeu Fabra (UPF), 08005 Barcelona, Spain;
| | - María J. Rodríguez-Lagunas
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (M.J.R.-L.); (N.D.-G.); (J.B.)
- Nutrition and Food Safety Research Institute (INSA-UB), 08921 Santa Coloma de Gramenet, Spain
| | - Natalia Díaz-Garrido
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (M.J.R.-L.); (N.D.-G.); (J.B.)
- Institute of Biomedicine of the University of Barcelona (IBUB), Sant Joan de Déu Research Institute, 08028 Barcelona, Spain
| | - Josefa Badia
- Department of Biochemistry and Physiology, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (M.J.R.-L.); (N.D.-G.); (J.B.)
| | - Lupe Carolina Espinoza
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (P.S.-G.); (M.S.-A.); (L.H.); (L.C.E.)
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08028 Barcelona, Spain
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador
| |
Collapse
|
30
|
Russo J, Fiegel J, Brogden NK. Rheological and Drug Delivery Characteristics of Poloxamer-Based Diclofenac Sodium Formulations for Chronic Wound Site Analgesia. Pharmaceutics 2020; 12:pharmaceutics12121214. [PMID: 33333773 PMCID: PMC7765230 DOI: 10.3390/pharmaceutics12121214] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/03/2020] [Accepted: 12/11/2020] [Indexed: 11/16/2022] Open
Abstract
Chronic wounds are a significant and growing health problem, and clinical treatment is often a painful experience. A topical dosage form would be optimal to treat this pain. Poloxamer 407, a thermosensitive polymer that is a liquid at low temperatures but gels at higher temperatures, is well suited to administer topical analgesics to chronic wound sites. The goal of this study was to evaluate the gelation and drug delivery properties of poloxamer 407 gels containing diclofenac sodium for potential use in chronic wound analgesic delivery. The gelation properties of poloxamer formulations were evaluated rheologically. Drug delivery properties of poloxamers loaded with diclofenac sodium were evaluated using snakeskin dialysis membranes, intact porcine ear skin, and porcine ear skin impaired via tape stripping. A commercial gel product and a solution of diclofenac sodium in water were used as control formulations. Poloxamer concentration and gelation temperature varied inversely, and the addition of higher concentrations of diclofenac sodium correlated to significant increases in poloxamer gelation temperature. Poloxamer solutions were effective in limiting the permeation of diclofenac sodium through membranes with impaired barrier properties, and delivery of diclofenac sodium from poloxamer 407 did not vary significantly from delivery observed from the commercial gel product. The amount of drug delivered in 24 h did not change significantly with changes in poloxamer 407 concentration. The results of this study indicate that poloxamer 407 may be a useful formulation component for administration of an analgesic product to a chronic wound site.
Collapse
Affiliation(s)
- Jackson Russo
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
| | - Jennifer Fiegel
- Department of Chemical and Biochemical Engineering, The University of Iowa, Iowa City, IA 52242, USA;
| | - Nicole K. Brogden
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
- Department of Dermatology, The University of Iowa, Iowa City, IA 52242, USA
- Correspondence:
| |
Collapse
|
31
|
Kamal NS, Alayoubi A, Elfakhri KH, Ibrahim S, Seggel M, Ashraf M, Zidan A. Effects of formulation variables on the in vitro performance of testosterone transdermal gel. Int J Pharm 2020; 590:119951. [PMID: 33035607 DOI: 10.1016/j.ijpharm.2020.119951] [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: 06/12/2020] [Revised: 09/21/2020] [Accepted: 10/02/2020] [Indexed: 10/23/2022]
Abstract
The variation in the critical formulation variables during life-cycle of the drug product may result in undesirable changes in product performance. The current study aimed at evaluating the effects of formulation variables on the in vitro performance of carbopol-loaded testosterone gel. The formulation variables included concentrations of permeation enhancers, testosterone, ethanol, carbopol and sodium hydroxide. In vitro evaluation of the product performance included assessment of the rheological and morphological properties, kinetics of ethanol evaporation, and drug permeation through human cadaver skin. The results revealed that carbopol, sodium hydroxide and testosterone concentrations increased the viscosity of the gels significantly (p < 0.05). However, carbopol concentration was the only critical variable to affect the yield stress of the gel. The concentration of ethanol was critical to metamorphosis of the gel due to solvent evaporation upon application to skin with minor contributions from other formulation variables. The increase in concentration of isopropyl myristate or isopropyl palmitate to 5%, ethanol to 70%, and testosterone to 2%, enhanced the testosterone permeation across the skin by ten-folds. Synergistic effects of ethanol and permeation enhancers on testosterone permeation was observed. In conclusion, strict control over the critical formulation variables should be exercised during manufacturing to ensure desired product performance.
Collapse
Affiliation(s)
- Nahid S Kamal
- Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, MD, USA
| | - Alaadin Alayoubi
- Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, MD, USA
| | - Khaled H Elfakhri
- Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, MD, USA
| | - Sarah Ibrahim
- Office of New Drug Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, MD, USA
| | - Mark Seggel
- Office of New Drug Products, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, MD, USA
| | - Muhammad Ashraf
- Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, MD, USA
| | - Ahmed Zidan
- Office of Testing and Research, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, Food and Drug Administration, MD, USA.
| |
Collapse
|
32
|
Sanabria-de la Torre R, Fernández-González A, Quiñones-Vico MI, Montero-Vilchez T, Arias-Santiago S. Bioengineered Skin Intended as In Vitro Model for Pharmacosmetics, Skin Disease Study and Environmental Skin Impact Analysis. Biomedicines 2020; 8:E464. [PMID: 33142704 PMCID: PMC7694072 DOI: 10.3390/biomedicines8110464] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 02/08/2023] Open
Abstract
This review aims to be an update of Bioengineered Artificial Skin Substitutes (BASS) applications. At the first moment, they were created as an attempt to replace native skin grafts transplantation. Nowadays, these in vitro models have been increasing and widening their application areas, becoming important tools for research. This study is focus on the ability to design in vitro BASS which have been demonstrated to be appropriate to develop new products in the cosmetic and pharmacology industry. Allowing to go deeper into the skin disease research, and to analyze the effects provoked by environmental stressful agents. The importance of BASS to replace animal experimentation is also highlighted. Furthermore, the BASS validation parameters approved by the OECD (Organisation for Economic Co-operation and Development) are also analyzed. This report presents an overview of the skin models applicable to skin research along with their design methods. Finally, the potential and limitations of the currently available BASS to supply the demands for disease modeling and pharmaceutical screening are discussed.
Collapse
Affiliation(s)
- Raquel Sanabria-de la Torre
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
| | - Ana Fernández-González
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
| | - María I. Quiñones-Vico
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
| | - Trinidad Montero-Vilchez
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Dermatology Department, Virgen de las Nieves University Hospital, 18014 Granada, Spain
| | - Salvador Arias-Santiago
- Cell Production and Tissue Engineering Unit, Virgen de las Nieves University Hospital, 18014 Granada, Spain; (R.S.-d.l.T.); (M.I.Q.-V.); (S.A.-S.)
- Biosanitary Institute of Granada (ibs.GRANADA), 18014 Granada, Spain;
- Andalusian Network of Design and Translation of Advanced Therapies, 41092 Sevilla, Spain
- Dermatology Department, Virgen de las Nieves University Hospital, 18014 Granada, Spain
- Dermatology Department, School of Medicine, Granada University, 18016 Granada, Spain
| |
Collapse
|
33
|
Midander K, Schenk L, Julander A. A novel approach to monitor skin permeation of metals in vitro. Regul Toxicol Pharmacol 2020; 115:104693. [DOI: 10.1016/j.yrtph.2020.104693] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 05/22/2020] [Accepted: 05/28/2020] [Indexed: 10/24/2022]
|
34
|
Zhang Q, Murawsky M, LaCount TD, Hao J, Ghosh P, Raney SG, Kasting GB, Li SK. Evaluation of Heat Effects on Fentanyl Transdermal Delivery Systems Using In Vitro Permeation and In Vitro Release Methods. J Pharm Sci 2020; 109:3095-3104. [PMID: 32702372 DOI: 10.1016/j.xphs.2020.07.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/13/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Abstract
Experimental conditions that could impact the evaluation of heat effects on transdermal delivery systems (TDS) using an in vitro permeation test (IVPT) and in vitro release testing (IVRT) were examined. Fentanyl was the model TDS. IVPT was performed using Franz diffusion cell, heating lamp, and human skin with seven heat application regimens. IVRT setup was similar to IVPT, without using skin. Dissolution study was conducted in a modified dissolution chamber. The activation energy of skin permeation for fentanyl was determined using aqueous solution of fentanyl. In IVPT, the increase of temperature from 32 °C to 42 °C resulted in a 2-fold increase in flux for fentanyl TDS, consistent with the activation energy determined. The magnitude of flux increase was affected by the heat exposure onset time and duration: higher flux was observed when heat was applied earlier or following sustained heat application. Heat induced flux increases could not be observed when inadequate sampling time points were used, suggesting the importance of optimizing sampling time points. Drug release from TDS evaluated using IVRT was fast and the skin was the rate-limiting barrier for TDS fentanyl delivery under elevated temperature.
Collapse
Affiliation(s)
- Qian Zhang
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Michael Murawsky
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Terri D LaCount
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - Jinsong Hao
- Department of Pharmaceutical Science and Research, School of Pharmacy, Marshall University, Huntington, WV 25755, USA; Department of Pharmaceutical Sciences, College of Pharmacy & Health Sciences, Campbell University, Buies Creek, NC 27506, USA
| | - Priyanka Ghosh
- Division of Therapeutic Performance, Office of Research and Standards, Office of Generic Drugs, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Sam G Raney
- Division of Therapeutic Performance, Office of Research and Standards, Office of Generic Drugs, U.S. Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Gerald B Kasting
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA
| | - S Kevin Li
- Division of Pharmaceutical Sciences, James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA.
| |
Collapse
|
35
|
Functional Analysis of Macromolecular Polysaccharides: Whitening, Moisturizing, Anti-Oxidant, and Cell Proliferation. Antioxidants (Basel) 2019; 8:antiox8110533. [PMID: 31703361 PMCID: PMC6912603 DOI: 10.3390/antiox8110533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 12/20/2022] Open
Abstract
In this research we utilized extracts from two different nature products, Achatina fulica and Heimiella retispora, to enhance skin moisturizing abilities, anti-oxidative properties, and cell proliferations. It was observed that two polysaccharides with anti-oxidative effects by chelating metal ions reduced oxidative stress and further blocked the formation of reactive oxygen species syntheses. To detect whether there was a similar effect within the cellular mechanism, a flow cytometry was applied for sensing the oxidative level and it was found that both materials inhibited the endogenous oxidative stress, which was induced by phorbol-12-myristate-13-acetate (PMA). Both polysaccharides also stimulated the production of collagen to maintain skin tightness and a moisturizing effect. In summary, we developed two macromolecular polysaccharides with potential applications in dermal care.
Collapse
|
36
|
Alexander H, Brown S, Danby S, Flohr C. Research Techniques Made Simple: Transepidermal Water Loss Measurement as a Research Tool. J Invest Dermatol 2019; 138:2295-2300.e1. [PMID: 30348333 DOI: 10.1016/j.jid.2018.09.001] [Citation(s) in RCA: 116] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/31/2018] [Accepted: 09/01/2018] [Indexed: 10/28/2022]
Abstract
Transepidermal water loss (TEWL) is the most widely used objective measurement for assessing the barrier function of skin in healthy individuals but also patients with skin diseases that are associated with skin barrier dysfunction, such as atopic dermatitis. TEWL is the quantity of condensed water that diffuses across a fixed area of stratum corneum to the skin surface per unit time. The water evaporating from the skin is measured using a probe that is placed in contact with the skin surface and contains sensors that detect changes in water vapor density. TEWL can be measured using an open-chamber, unventilated-chamber, or condenser-chamber device. It is a sensitive measure that is affected by properties of the surrounding microclimate such as environmental humidity, temperature, and airflow and should be measured under controlled conditions. TEWL varies significantly across different anatomical sites and also depends on sweat gland activity, skin temperature, and corneocyte properties. Here we describe how to optimally use TEWL measurements as a skin research tool in vivo and in vitro.
Collapse
Affiliation(s)
- Helen Alexander
- Unit for Population-Based Dermatology Research, St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK.
| | - Sara Brown
- Skin Research Group, School of Medicine, Ninewells Hospital & Medical School, University of Dundee, Dundee, UK
| | - Simon Danby
- Sheffield Dermatology Research, Department of Infection, Immunity & Cardiovascular Disease, The Medical School, University of Sheffield, Sheffield, UK
| | - Carsten Flohr
- Unit for Population-Based Dermatology Research, St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust and King's College London, London, UK
| |
Collapse
|