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Nanoemulsion: A Review on Mechanisms for the Transdermal Delivery of Hydrophobic and Hydrophilic Drugs. Sci Pharm 2019. [DOI: 10.3390/scipharm87030017] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Nanoemulsions (NEs) are colloidal dispersions of two immiscible liquids, oil and water, in which one is dispersed in the other with the aid of a surfactant/co-surfactant mixture, either forming oil-in-water (o/w) or water-in-oil (w/o) nanodroplets systems, with droplets 20–200 nm in size. NEs are easy to prepare and upscale, and they show high variability in their components. They have proven to be very viable, non-invasive, and cost-effective nanocarriers for the enhanced transdermal delivery of a wide range of active compounds that tend to metabolize heavily or suffer from undesirable side effects when taken orally. In addition, the anti-microbial and anti-viral properties of NE components, leading to preservative-free formulations, make NE a very attractive approach for transdermal drug delivery. This review focuses on how NEs mechanistically deliver both lipophilic and hydrophilic drugs through skin layers to reach the blood stream, exerting the desired therapeutic effect. It highlights the mechanisms and strategies executed to effectively deliver drugs, both with o/w and w/o NE types, through the transdermal way. However, the mechanisms reported in the literature are highly diverse, to the extent that a definite mechanism is not conclusive.
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102
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Harwansh RK, Deshmukh R, Rahman MA. Nanoemulsion: Promising nanocarrier system for delivery of herbal bioactives. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.03.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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103
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Pradal J, Vallet CM, Frappin G, Bariguian F, Lombardi MS. Importance of the formulation in the skin delivery of topical diclofenac: not all topical diclofenac formulations are the same. J Pain Res 2019; 12:1149-1154. [PMID: 31114298 PMCID: PMC6489664 DOI: 10.2147/jpr.s191300] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 02/21/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose: The current study aimed to compare 2 topical diclofenac products (diclofenac diethylamine [DEA] 1.16% emulsion and diclofenac sodium [Na] 5% gel). The quantitative evaluation of skin permeability and the qualitative evaluation of their physical characteristics were performed. Methods: The skin permeability of diclofenac DEA 1.16% emulsion and diclofenac Na 5% gel was compared in vitro using Franz diffusion cells following a single, fixed, 10 mg/cm2 dose of product applied to a 0.64 cm2 area of the stratum corneum surface of ex vivo human skin samples. The physical characteristics of the 2 formulations were assessed by rheological measurement and microscopy observation. Results: Diclofenac DEA 1.16% emulsion exhibited a statistically significant higher permeation through human skin at 24 hrs than diclofenac Na 5% gel (554 vs 361 ng/cm2, respectively; ratio of adjusted geometric means, 1.54 [95% CI, 1.14-2.07]). When expressed as a percentage of the applied dose of diclofenac that permeated through human skin, a 7-fold difference was observed between the diclofenac DEA 1.16% emulsion (0.54%) and the diclofenac Na 5% gel (0.077%). Qualitative composition and physical characterization showed differences between the formulations that may explain some of the permeation data observed. Based on rheological assessments, diclofenac Na 5% gel had a higher viscosity (24.82 Pa.s) than diclofenac DEA 1.16% emulsion (10.29 Pa.s). Conclusion: A topical diclofenac product with a higher concentration of the active ingredient does not necessarily lead to greater absorption relative to a product with lower concentration of the active ingredient but different characteristics. These observations highlight the importance of considering parameters beyond drug concentration, such as composition, which may influence the solubility of the drug and permeation of topical nonsteroidal anti-inflammatory drugs.
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Affiliation(s)
- Julie Pradal
- Department of New Product Development, R&D, GSK Consumer Healthcare S.A, Nyon 1, 1260, Switzerland
| | - Coralie M Vallet
- Department of New Product Development, R&D, GSK Consumer Healthcare S.A, Nyon 1, 1260, Switzerland
| | - Guillaume Frappin
- Department of New Product Development, R&D, GSK Consumer Healthcare S.A, Nyon 1, 1260, Switzerland
| | - Frédérique Bariguian
- Department of New Product Development, R&D, GSK Consumer Healthcare S.A, Nyon 1, 1260, Switzerland
| | - Maria Stella Lombardi
- Department of New Product Development, R&D, GSK Consumer Healthcare S.A, Nyon 1, 1260, Switzerland
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104
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Talaat SM, Elnaggar YSR, Abdalla OY. Lecithin Microemulsion Lipogels Versus Conventional Gels for Skin Targeting of Terconazole: In Vitro, Ex Vivo, and In Vivo Investigation. AAPS PharmSciTech 2019; 20:161. [PMID: 30969396 DOI: 10.1208/s12249-019-1374-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/19/2019] [Indexed: 11/30/2022] Open
Abstract
Topical treatment of fungal infections has several superiorities over oral treatment. However, the greatest challenge for dermal delivery is the stratum corneum which is considered an effective barrier for penetration of most antifungal drugs into deeper skin layers. Terconazole (Tr), which is the first marketed triazole antifungal, was reported to be one of the most active azoles against vaginal candidiasis. Nevertheless, our work group is the first to investigate the potential of Tr in the treatment of skin mycosis via integration into lecithin microemulsion-based lipogels (LMBGs). The microemulsion regions of the investigated systems were detected through ternary phase diagrams. The in vitro characterization studies revealed promising physicochemical merits for the selected LMBGs as well as satisfactory in vitro antifungal activity. The current research work was endeavored to investigate the potential of such novel Tr-loaded LMBGs in comparison with conventional gels. Ex vivo permeation and retention studies in addition to in vivo deposition study showed a significant improvement in the permeability of Tr through animal skin from LMBGs compared to other conventional gels. Furthermore, the optimized microemulsion lipogel proved to be safe and a nonirritant to experimental animals through the acute sensitivity study and histological skin examination. Overall, lecithin-based microemulsion lipogels of different composition confirmed their potential as interesting nanocarriers for skin delivery of terconazole compared to current therapy.
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105
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Puri A, Bhattaccharjee SA, Zhang W, Clark M, Singh O, Doncel GF, Banga AK. Development of a Transdermal Delivery System for Tenofovir Alafenamide, a Prodrug of Tenofovir with Potent Antiviral Activity Against HIV and HBV. Pharmaceutics 2019; 11:pharmaceutics11040173. [PMID: 30970630 PMCID: PMC6523937 DOI: 10.3390/pharmaceutics11040173] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 11/16/2022] Open
Abstract
Tenofovir alafenamide (TAF) is an effective nucleotide reverse transcriptase inhibitor that is used in the treatment of HIV-1 and HBV. Currently, it is being investigated for HIV prophylaxis. Oral TAF regimens require daily intake, which hampers adherence and increases the possibility of viral resistance. Long-acting formulations would significantly reduce this problem. Therefore, the aim of this study was to develop a transdermal patch containing TAF and investigate its performance in vitro through human epidermis. Two types of TAF patches were manufactured. Transparent patches were prepared using acrylate adhesive (DURO-TAK 87-2516), and suspension patches were prepared using silicone (BIO-PSA 7-4301) and polyisobutylene (DURO-TAK 87-6908) adhesives. In vitro permeation studies were performed while using vertical Franz diffusion cells for seven days. An optimized silicone-based patch was characterized for its adhesive properties and tested for skin irritation. The acrylate-based patches, comprising 2% w/w TAF and a combination of chemical enhancers, showed a maximum flux of 0.60 ± 0.09 µg/cm²/h. However, the silicone-based patch comprising of 15% w/w TAF showed the highest permeation (7.24 ± 0.47 μg/cm²/h). This study demonstrates the feasibility of developing silicone-based transdermal patches that can deliver a therapeutically relevant dose of TAF for the control of HIV and HBV infections.
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Affiliation(s)
- Ashana Puri
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA.
| | - Sonalika A Bhattaccharjee
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA.
| | - Wei Zhang
- CONRAD, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Arlington, VA 22209, USA.
| | - Meredith Clark
- CONRAD, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Arlington, VA 22209, USA.
| | - Onkar Singh
- CONRAD, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Arlington, VA 22209, USA.
| | - Gustavo F Doncel
- CONRAD, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Arlington, VA 22209, USA.
| | - Ajay K Banga
- Center for Drug Delivery Research, Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA 30341, USA.
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106
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de Matos SP, Teixeira HF, de Lima ÁAN, Veiga-Junior VF, Koester LS. Essential Oils and Isolated Terpenes in Nanosystems Designed for Topical Administration: A Review. Biomolecules 2019; 9:biom9040138. [PMID: 30959802 PMCID: PMC6523335 DOI: 10.3390/biom9040138] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 12/16/2022] Open
Abstract
Essential oils are natural products with a complex composition. Terpenes are the most common class of chemical compounds present in essential oils. Terpenes and the essential oils containing them are widely used and investigated by their pharmacological properties and permeation-enhancing ability. However, many terpenes and essential oils are sensitive to environmental conditions, undergoing volatilization and chemical degradation. In order to overcome the chemical instability of some isolated terpenes and essential oils, the encapsulation of these compounds in nanostructured systems (polymeric, lipidic, or molecular complexes) has been employed. In addition, nanoencapsulation can be of interest for pharmaceutical applications due to its capacity to improve the bioavailability and allow the controlled release of drugs. Topical drug administration is a convenient and non-invasive administration route for both local and systemic drug delivery. The present review focuses on describing the current status of research concerning nanostructured delivery systems containing isolated terpenes and/or essential oils designed for topical administration and on discussing the use of terpenes and essential oils either for their biological activities or as permeation enhancers in pharmaceutic formulations.
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Affiliation(s)
- Sheila P de Matos
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000, Brazil.
| | - Helder F Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, Av. General Cordeiro de Farias, s/n, Petrópolis, Natal 59012-570, Brazil.
| | - Ádley A N de Lima
- Programa de Pós-Graduação em Ciências Farmacêuticas, Departamento de Farmácia, Universidade Federal do Rio Grande do Norte, Av. General Cordeiro de Farias, s/n, Petrópolis, Natal 59012-570, Brazil.
| | - Valdir F Veiga-Junior
- Departamento de Engenharia Química, Instituto Militar de Engenharia, Praça Gen. Tibúrcio, 80, Praia Vermelha, Urca, Rio de Janeiro 22290-270, Brazil.
| | - Letícia S Koester
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre 90610-000, Brazil.
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107
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Aboul-Einien MH, Kandil SM, Abdou EM, Diab HM, Zaki MSE. Ascorbic acid derivative-loaded modified aspasomes: formulation, in vitro, ex vivo and clinical evaluation for melasma treatment. J Liposome Res 2019; 30:54-67. [PMID: 30821553 DOI: 10.1080/08982104.2019.1585448] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Vitamin C (L-Ascorbic acid) has many favourable effects on the skin such as antioxidant, anti-aging and whitening effects. Its instability and low permeability limit its pharmaceutical use in cosmetic and dermatological products. Instead, Mg ascorbyl phosphate (MAP), an ascorbic acid derivative, has the same effect with higher stability is being used. In this work, a vesicular system, aspasomes, containing MAP was developed and evaluated. Aspasomes are multilayered vesicles formed by amphiphiles molecules, Ascorbyl palmitate (ASP), in combination with cholesterol and charged lipids for drug encapsulation. Here, we investigated the use of lecithin instead of the charged lipid dicetyl phosphate for aspasomes development. Nine formulations were prepared and evaluated for their entrapment efficiency, particle size, polydispersity index (PDI) and zeta potential. Their entrapment efficiency ranged from 33.00 ± 2.27 to 95.18 ± 1.06, while their particle size was from 373.34 ± 60.85 to 464.37 ± 93.46 nm with acceptable PDI (from 0.212 ± 0.068 to 0.351 ± 0.061) and zeta potential (from -37.52 ± 2.42 to -50.36 ± 1.82). Three formulations were selected and evaluated for their drug release, permeation and retention into skin. One formulation was selected to be formulated as aspasomal topical cream and gel. The aspasomal cream was found to have enhanced drug permeation and skin retention over the aspasomal gel as well as the aspasomes formulation. MAP aspasomal cream was evaluated clinically as an effective treatment for melasma against 15% trichloroacetic acid (TCA) and the results recorded that the aspasomal cream showed the greatest degree of improvement regarding the hemi-MASI scores with 35% of patients rating it as excellent treatment. The study showed that MAP aspasomal cream can be considered a novel treatment of melasma which is free of side effects. Its efficacy as a monotherapy is superior to that of chemical peeling using 15% TCA.
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Affiliation(s)
- Mona H Aboul-Einien
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Soha M Kandil
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Modern University for Technology & Information (MTI), Cairo, Egypt
| | - Ebtsam M Abdou
- Department of Pharmaceutics, National Organization of Drug Control and Research (NODCAR), Giza, Egypt
| | - Heba M Diab
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Ain Shamas University, Cairo, Egypt
| | - Marwa S E Zaki
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Ain Shamas University, Cairo, Egypt
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108
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Patel KK, Gade S, Anjum MM, Singh SK, Maiti P, Agrawal AK, Singh S. Effect of penetration enhancers and amorphization on transdermal permeation flux of raloxifene-encapsulated solid lipid nanoparticles: an ex vivo study on human skin. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01004-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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109
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Qindeel M, Ahmed N, Sabir F, Khan S, Ur-Rehman A. Development of novel pH-sensitive nanoparticles loaded hydrogel for transdermal drug delivery. Drug Dev Ind Pharm 2019; 45:629-641. [PMID: 30633578 DOI: 10.1080/03639045.2019.1569031] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Difference of pH that exists between the skin surface and blood circulation can be exploited for transdermal delivery of drug molecules by loading drug into pH-sensitive polymer. Eudragit S100 (ES100), a pH-sensitive polymer having dissolution profile above pH 7.4, is used in oral, ocular, vaginal and topical delivery of drug molecules. However, pH-sensitive potential of this polymer has not been explored for transdermal delivery. The aim of this research work was to exploit the pH-sensitive potential of ES100 as a nanocarrier for transdermal delivery of model drug, that is, Piroxicam. METHODS Simple nanoprecipitation technique was employed to prepare the nanoparticles and response surface quadratic model was applied to get an optimized formulation. The prepared nanoparticles were characterized and loaded into Carbopol 934 based hydrogel. In vitro release, ex vivo permeation and accelerated stability studies were carried out on the prepared formulation. RESULTS Particles with an average size of 25-40 nm were obtained with an encapsulation efficiency of 88%. Release studies revealed that nanoparticles remained stable at acidic pH while sustained release with no initial burst effect was observed at pH 7.4 from the hydrogel. Permeation of these nanocarriers from hydrogel matrix showed significant permeation of Piroxicam through mice skin. CONCLUSION It can be concluded that ES100 based pH-sensitive nanoparticles have potential to be delivered through transdermal route.
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Affiliation(s)
- Maimoona Qindeel
- a Department of Pharmacy , Quaid.i.Azam University , Islamabad , Pakistan
| | - Naveed Ahmed
- a Department of Pharmacy , Quaid.i.Azam University , Islamabad , Pakistan
| | - Fakhara Sabir
- a Department of Pharmacy , Quaid.i.Azam University , Islamabad , Pakistan
| | - Samiullah Khan
- b Department of Microbiology , Quaid.i.Azam University , Islamabad , Pakistan
| | - Asim Ur-Rehman
- a Department of Pharmacy , Quaid.i.Azam University , Islamabad , Pakistan
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Kopečná M, Kováčik A, Kučera O, Macháček M, Sochorová M, Audrlická P, Vávrová K. Fluorescent Penetration Enhancers Reveal Complex Interactions among the Enhancer, Drug, Solvent, and Skin. Mol Pharm 2019; 16:886-897. [DOI: 10.1021/acs.molpharmaceut.8b01196] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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111
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Said Ahmed MA, Saweeres ESB, Abdelkader NA, Abdelmajeed SF, Fares AR. Improved Pain and Function in Knee Osteoarthritis with Dexamethasone Phonophoresis: A Randomized Controlled Trial. Indian J Orthop 2019; 53:700-707. [PMID: 31673169 PMCID: PMC6804376 DOI: 10.4103/ortho.ijortho_639_18] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Intraarticular corticosteroid injection is an adjunct to core treatments for relief of moderate-to-severe pain in osteoarthritis (OA) patients. This randomized controlled trial was conducted to determine the effect of dexamethasone phonophoresis (DxPh) on knee OA. PATIENTS AND METHODS Forty six female patients with knee OA were randomized into two equal groups. The study group received DxPh over the medial side of the knee, transcutaneous electrical nerve stimulation (TENS), and quadriceps strengthening exercises. Control group received ultrasound therapy and the same TENS and exercise program. Pain was assessed using the visual analog scale (VAS) and the pain subscale of Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) pre- and posttreatment. Functional mobility was assessed by the Timed Up and Go (TUG) test, total WOMAC, and the joint stiffness and physical function subscales of WOMAC. The minimal clinically identifiable difference was used to calculate treatment effect sizes of both modalities, which was compared to intraarticular steroid injections. RESULTS The VAS, TUG, and WOMAC scores improved with both modalities. Pain intensity improved by 50.6%-58.0% in the study group (VAS and pain subscale of WOMAC, respectively) compared to 17.8%-28.6% for the control group. Functional mobility showed a higher rate of improvement in the DxPh group compared to control (37.7 vs. 17.5% for TUG and 53.2 vs. 23.0 and 56.1 vs. 26.4% for the joint stiffness and physical function subscales of WOMAC, respectively). Posttreatment results revealed statistically and clinically significant improvement in pain intensity and functional mobility in the DxPh group. CONCLUSION DxPh resulted in a greater improvement in pain and function in patients with knee OA than therapeutic ultrasound combined with exercise and TENS. The effect size of phonophoresis was clinically significant and higher than that reported for intraarticular steroid injection from pooled data in the literature.
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Affiliation(s)
| | - Emad Samuel Boles Saweeres
- Department of Orthopaedic Surgery, El-Sahel Teaching Hospital, Cairo, Egypt,Address for correspondence: Prof. Emad Samuel Boles Saweeres, Department of Orthopaedic Surgery, El-Sahel Teaching Hospital, Cairo 11697, Egypt. E-mail:
| | - Nasr Awad Abdelkader
- Department of Musculoskeletal Disorders and Their Surgeries, Faculty of Physical Therapy, Cairo University, Giza, Egypt
| | - Salwa Fadl Abdelmajeed
- Department of Musculoskeletal Disorders and Their Surgeries, Faculty of Physical Therapy, Cairo University, Giza, Egypt
| | - Ahmed Roshdy Fares
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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112
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Banzhaf CA, Ortner VK, Philipsen PA, Haedersdal M. The ablative fractional coagulation zone influences skin fluorescence intensities of topically applied test molecules-An in vitro study with fluorescence microscopy and fluorescence confocal microscopy. Lasers Surg Med 2018; 51:68-78. [DOI: 10.1002/lsm.23034] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Christina A. Banzhaf
- Department of Dermatology; University of Copenhagen; Bispebjerg Hospital 2400 Copenhagen NV Denmark
| | - Vinzent K. Ortner
- Department of Dermatology; University of Copenhagen; Bispebjerg Hospital 2400 Copenhagen NV Denmark
| | - Peter A. Philipsen
- Department of Dermatology; University of Copenhagen; Bispebjerg Hospital 2400 Copenhagen NV Denmark
| | - Merete Haedersdal
- Department of Dermatology; University of Copenhagen; Bispebjerg Hospital 2400 Copenhagen NV Denmark
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Abstract
Biologics now constitute a significant element of available medical treatments. Owing to their clinical and commercial success, biologics are a rapidly growing class and have become a dominant therapeutic modality. Although most of the successful biologics to date are drugs that bear a peptidic backbone, ranging from small peptides to monoclonal antibodies (~500 residues; 150 kDa), new biologic modalities, such as nucleotide-based therapeutics and viral gene therapies, are rapidly maturing towards widespread clinical use. Given the rise of peptides and proteins in the pharmaceutical landscape, tremendous research and development interest exists in developing less-invasive or non-invasive routes for the systemic delivery of biologics, including subcutaneous, transdermal, oral, inhalation, nasal and buccal routes. This Review summarizes the current status, latest updates and future prospects for such delivery of peptides, proteins and other biologics.
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114
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Pavlović N, Goločorbin-Kon S, Ðanić M, Stanimirov B, Al-Salami H, Stankov K, Mikov M. Bile Acids and Their Derivatives as Potential Modifiers of Drug Release and Pharmacokinetic Profiles. Front Pharmacol 2018; 9:1283. [PMID: 30467479 DOI: 10.3389/fphar.2018.01283/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 10/18/2018] [Indexed: 05/27/2023] Open
Abstract
Bile acids have received considerable interest in the drug delivery research due to their peculiar physicochemical properties and biocompatibility. The main advantage of bile acids as drug absorption enhancers is their ability to act as both drug solubilizing and permeation-modifying agents. Therefore, bile acids may improve bioavailability of drugs whose absorption-limiting factors include either poor aqueous solubility or low membrane permeability. Besides, bile acids may withstand the gastrointestinal impediments and aid in the transporter-mediated absorption of physically complexed or chemically conjugated drug molecules. These biomolecules may increase the drug bioavailability also at submicellar levels by increasing the solubility and dissolution rate of non-polar drugs or through the partition into the membrane and increase of membrane fluidity and permeability. Most bile acid-induced effects are mediated by the nuclear receptors that activate transcriptional networks, which then affect the expression of a number of target genes, including those for membrane transport proteins, affecting the bioavailability of a number of drugs. Besides micellar solubilization, there are many other types of interactions between bile acids and drug molecules, which can influence the drug transport across the biological membranes. Most common drug-bile salt interaction is ion-pairing and the formed complexes may have either higher or lower polarity compared to the drug molecule itself. Furthermore, the hydroxyl and carboxyl groups of bile acids can be utilized for the covalent conjugation of drugs, which changes their physicochemical and pharmacokinetic properties. Bile acids can be utilized in the formulation of conventional dosage forms, but also of novel micellar, vesicular and polymer-based therapeutic systems. The availability of bile acids, along with their simple derivatization procedures, turn them into attractive building blocks for the design of novel pharmaceutical formulations and systems for the delivery of drugs, biomolecules and vaccines. Although toxic properties of hydrophobic bile acids have been described, their side effects are mostly produced when present in supraphysiological concentrations. Besides, minor structural modifications of natural bile acids may lead to the creation of bile acid derivatives with the reduced toxicity and preserved absorption-enhancing activity.
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Affiliation(s)
- Nebojša Pavlović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | | | - Maja Ðanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Bojan Stanimirov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Karmen Stankov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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115
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Pavlović N, Goločorbin-Kon S, Ðanić M, Stanimirov B, Al-Salami H, Stankov K, Mikov M. Bile Acids and Their Derivatives as Potential Modifiers of Drug Release and Pharmacokinetic Profiles. Front Pharmacol 2018; 9:1283. [PMID: 30467479 PMCID: PMC6237018 DOI: 10.3389/fphar.2018.01283] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 10/18/2018] [Indexed: 12/16/2022] Open
Abstract
Bile acids have received considerable interest in the drug delivery research due to their peculiar physicochemical properties and biocompatibility. The main advantage of bile acids as drug absorption enhancers is their ability to act as both drug solubilizing and permeation-modifying agents. Therefore, bile acids may improve bioavailability of drugs whose absorption-limiting factors include either poor aqueous solubility or low membrane permeability. Besides, bile acids may withstand the gastrointestinal impediments and aid in the transporter-mediated absorption of physically complexed or chemically conjugated drug molecules. These biomolecules may increase the drug bioavailability also at submicellar levels by increasing the solubility and dissolution rate of non-polar drugs or through the partition into the membrane and increase of membrane fluidity and permeability. Most bile acid-induced effects are mediated by the nuclear receptors that activate transcriptional networks, which then affect the expression of a number of target genes, including those for membrane transport proteins, affecting the bioavailability of a number of drugs. Besides micellar solubilization, there are many other types of interactions between bile acids and drug molecules, which can influence the drug transport across the biological membranes. Most common drug-bile salt interaction is ion-pairing and the formed complexes may have either higher or lower polarity compared to the drug molecule itself. Furthermore, the hydroxyl and carboxyl groups of bile acids can be utilized for the covalent conjugation of drugs, which changes their physicochemical and pharmacokinetic properties. Bile acids can be utilized in the formulation of conventional dosage forms, but also of novel micellar, vesicular and polymer-based therapeutic systems. The availability of bile acids, along with their simple derivatization procedures, turn them into attractive building blocks for the design of novel pharmaceutical formulations and systems for the delivery of drugs, biomolecules and vaccines. Although toxic properties of hydrophobic bile acids have been described, their side effects are mostly produced when present in supraphysiological concentrations. Besides, minor structural modifications of natural bile acids may lead to the creation of bile acid derivatives with the reduced toxicity and preserved absorption-enhancing activity.
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Affiliation(s)
- Nebojša Pavlović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | | | - Maja Ðanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Bojan Stanimirov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Karmen Stankov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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116
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Osborne DW, Musakhanian J. Skin Penetration and Permeation Properties of Transcutol®-Neat or Diluted Mixtures. AAPS PharmSciTech 2018; 19:3512-3533. [PMID: 30421383 PMCID: PMC6848246 DOI: 10.1208/s12249-018-1196-8] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/24/2018] [Indexed: 01/14/2023] Open
Abstract
A heightened interest in (trans)dermal delivery is in part driven by the need to improve the existing skin therapies and also the demand for alternative routes of administration, notably for pharmaceutical actives with undesirable oral absorption characteristics. The premise of delivering difficult actives to the skin or via the skin however is weighed down by the barrier function properties of the stratum corneum. Short of disrupting the skin by physical means, scientists have resorted to formulation with excipients known to enhance the skin penetration and permeation of drugs. A vehicle that has emerged over the years as a safe solubilizer and enhancer for a broad range of drug actives is the highly purified NF/EP grade of diethylene glycol monoethyl ether (DEGEE) commercially known as Transcutol®. Whereas numerous studies affirm its enhancing effect on drug solubilization, percutaneous absorption rate, and/or drug retention in the skin, there are few publications that unite the body of the published literature in describing the precise role and mechanisms of action for Transcutol®. In view of the current mechanistic understanding of skin barrier properties, this paper takes on a retrospective review of the published works and critically evaluates the data for potential misses due to experimental variables such as formulation design, skin model, skin hydration levels, and drug properties. The goal of this review is to mitigate the incongruence of the published works and to construct a unified, comprehensive understanding of how Transcutol® influences skin penetration and permeation. Graphical Abstract Transcutol has affinity for the hydrophilic head groups of the stratum corneum structures.
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Pilch E, Musiał W. Selected Physicochemical Properties of Lyophilized Hydrogel with Liposomal Fraction of Calcium Dobesilate. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2143. [PMID: 30384418 PMCID: PMC6266848 DOI: 10.3390/ma11112143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/14/2018] [Accepted: 10/29/2018] [Indexed: 12/31/2022]
Abstract
Lyophilization is the process of drying and improving the stability of various pharmaceutical preparations. In this work we evaluated the properties of 11 hydrophilic gels calcium dobesilate with liposomes based on soybean lecithin, subjected to the freeze-drying procedure. Liposomes were produced by using method thin lipid film. Lyophilization was carried out under conditions of temperature equal (-30 °C) and pressure 0.37 mbar. We evaluated the preparations with dynamic light scattering (DLS) method, optical microscopy and Fourier-transform infrared spectroscopy (FTIR). In this work we presented the average results for the particle diameter in the sample and PDI (polydispersity index) value for the samples that produced the results. When testing using the DLS method on a Malvern Zetaseizer, results for 7 samples were not obtained. Two of next four samples were characterized by an increased size of the liposome particle resulting from a lower concentration of ethanol compared to the rest of them. Three samples under the microscope did not show any differences. It was possible only to see single crystals probably of undissolved calcium dobesilate. Some clusters were observed in the 4 samples, and when they appeared they were very small. The aggregates and irregular liposomes present in the rest of the samples may have been formed due to the destabilizing activity of ethanol towards lipid membranes. In the FTIR spectrum for MC, the peak was observed at the wavenumber of ca. 2900 cm-1 and of about 1050 cm-1. In case of pure calcium dobesilate we observed low pick at the wavenumber of about 3400 cm-1. The spectrum has a low peak at the wavenumber of 1450 cm-1 and intense peaks ranging from approx. 1000 cm-1 to approx. 1200 cm-1. Decay of the lecithin peak in formulations with liposomes at 1725 cm-1 wavelength may indicate the occurrence of the hydrolysis reaction in the system. Probably there was a hydrolysis of the ester bond connecting the rest of the phosphoric acid and the choline with the glycerol residue.
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Affiliation(s)
- Ewa Pilch
- Department of Physical Chemistry, Pharmaceutical Faculty, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland.
| | - Witold Musiał
- Department of Physical Chemistry, Pharmaceutical Faculty, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland.
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118
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Sonzogni AS, Yealland G, Kar M, Wedepohl S, Gugliotta LM, Gonzalez VDG, Hedtrich S, Calderón M, Minari RJ. Effect of Delivery Platforms Structure on the Epidermal Antigen Transport for Topical Vaccination. Biomacromolecules 2018; 19:4607-4616. [DOI: 10.1021/acs.biomac.8b01307] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ana S. Sonzogni
- Group of Polymers and Polymerization Reactors, INTEC (Universidad Nacional del Litoral-CONICET), Güemes 3450, Santa Fe 3000, Argentina
| | - Guy Yealland
- Freie Universität Berlin, Institute of Pharmacy, Königin-Luise-Str. 2+4, 14195 Berlin, Germany
| | - Mrityunjoy Kar
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Stefanie Wedepohl
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Luis M. Gugliotta
- Group of Polymers and Polymerization Reactors, INTEC (Universidad Nacional del Litoral-CONICET), Güemes 3450, Santa Fe 3000, Argentina
| | - Verónica D. G. Gonzalez
- Group of Polymers and Polymerization Reactors, INTEC (Universidad Nacional del Litoral-CONICET), Güemes 3450, Santa Fe 3000, Argentina
| | - Sarah Hedtrich
- Freie Universität Berlin, Institute of Pharmacy, Königin-Luise-Str. 2+4, 14195 Berlin, Germany
| | - Marcelo Calderón
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, Takustrasse 3, 14195 Berlin, Germany
| | - Roque J. Minari
- Group of Polymers and Polymerization Reactors, INTEC (Universidad Nacional del Litoral-CONICET), Güemes 3450, Santa Fe 3000, Argentina
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119
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Park SY, Byun EJ, Lee JD, Kim S, Kim HS. Air Pollution, Autophagy, and Skin Aging: Impact of Particulate Matter (PM 10) on Human Dermal Fibroblasts. Int J Mol Sci 2018; 19:ijms19092727. [PMID: 30213068 PMCID: PMC6163910 DOI: 10.3390/ijms19092727] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 09/09/2018] [Accepted: 09/10/2018] [Indexed: 11/16/2022] Open
Abstract
A World Health Organization (WHO) report from 2016 states that over 3 million people die annually from air pollution, which places air pollution as the world's largest single environmental health risk factor. Particulate matter (PM) is one of the main components of air pollution, and there is increasing evidence that PM exposure exerts negative effects on the human skin. To see the impact of air pollution on skin aging, we analyzed the effect of PM exposure on human dermal fibroblasts (HDFs) with Western blot, enzyme-linked immunosorbent assay (ELISA), and gene analysis. Cultured HDFs were exposed to PM10 at a concentration of 30 µg/cm² for 24 h, and their gene/protein expression of inflammatory cytokines, fibroblast chemical mediators, and autophagy were assessed. A total of 1977 genes were found to be differentially expressed following PM exposure. We observed a significantly increased expression of pro-inflammatory genes interleukin (IL)-1β, IL-6, IL-8 and IL-33 in dermal fibroblasts exposed to PM10. Protein expression of IL-6 and IL-8 also significantly increased, which complemented our gene analysis results. In addition, there was a significant increase in cytochrome P450 (CYP1A1, CYP1B1), matrix metalloproteinase (MMP-1, MMP-3) mRNA expression, and significant decrease in transforming growth factor (TGF)-β, collagen type I alpha chain (COL1A1, COL1A2), and elastin (ELN) mRNA expression in PM-exposed dermal fibroblasts. Protein expression of MMP-1 was significantly increased and that of TGF-β and procollagen profoundly decreased, similar to the gene analysis results. Autophagy, an integrated cellular stress response, was also increased while transmission electron microscopy (TEM) analysis provided evidence of PM internalization in the autolysosomes. Taken together, our results demonstrate that PM10 contributes to skin inflammation and skin aging via impaired collagen synthesis. Increased autophagy in our study suggests a reparative role of autophagy in HDFs stressed with PM, but its biological significance requires further research.
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Affiliation(s)
- Seo-Yeon Park
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea.
| | - Eun Jung Byun
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea.
| | - Jeong Deuk Lee
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea.
| | - Sungjoo Kim
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea.
| | - Hei Sung Kim
- Department of Biomedicine & Health Sciences, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea.
- Department of Dermatology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea.
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120
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Kiselmann C, Dobler D, Schmidts T, Eicher AC, Möbs C, Pfützner W, Runkel F. Development of a skin-friendly microemulsion for dermal allergen-specific immunotherapy. Int J Pharm 2018; 550:463-469. [PMID: 30194011 DOI: 10.1016/j.ijpharm.2018.09.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/30/2018] [Accepted: 09/04/2018] [Indexed: 01/29/2023]
Abstract
Due to their role in immune responses, the skin dendritic cells (i.e. epidermal Langerhans cells and dermal dendritic cells) have become of great interest to researchers in the past decades. A dermal administration of allergens could target these professional antigen-presenting cells directly and build up immunotolerance. Additionally, many of the adverse side effects, which are seen in the current state of the art specific immunotherapy routes, could be avoided. Therefore, in this study a penetration enhancing microemulsion was developed and its physicochemical properties were determined under several storage conditions. The influence of different preservatives on the microemulsion stability was observed. We examined epidermal penetration of Alexa Fluor-647 labelled bee-venom phospholipase A2 (Api m 1) using the Franz diffusion cell set up and confocal laser-scanning microscopy. First results of an in-vivo Api m 1-allergic mouse model indicated the protective efficacy of dermal AIT with our newly developed microemulsion. Summarily, the developed microemulsion is a suitable, stable drug delivery system for the topical administration of proteogenic allergens into the epidermis and is able to reach dendritic cells in the skin.
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Affiliation(s)
- C Kiselmann
- Institute of Bioprocess Engineering and Pharmaceutical Technology, Technische Hochschule Mittelhessen - University of Applied Sciences, Wiesenstraße 14, 35390 Giessen, Germany.
| | - D Dobler
- Institute of Bioprocess Engineering and Pharmaceutical Technology, Technische Hochschule Mittelhessen - University of Applied Sciences, Wiesenstraße 14, 35390 Giessen, Germany
| | - T Schmidts
- Institute of Bioprocess Engineering and Pharmaceutical Technology, Technische Hochschule Mittelhessen - University of Applied Sciences, Wiesenstraße 14, 35390 Giessen, Germany
| | - A C Eicher
- Institute of Bioprocess Engineering and Pharmaceutical Technology, Technische Hochschule Mittelhessen - University of Applied Sciences, Wiesenstraße 14, 35390 Giessen, Germany
| | - C Möbs
- Clinical & Experimental Allergology, Department of Dermatology and Allergology, Philipps University Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - W Pfützner
- Clinical & Experimental Allergology, Department of Dermatology and Allergology, Philipps University Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - F Runkel
- Institute of Bioprocess Engineering and Pharmaceutical Technology, Technische Hochschule Mittelhessen - University of Applied Sciences, Wiesenstraße 14, 35390 Giessen, Germany; Faculty of Biology and Chemistry, Justus Liebig University, Ludwigstraße 23, 35390 Giessen, Germany
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121
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Shende P, Vaidya J, Gaud RS. Pharmacotherapeutic approaches for transportation of anticancer agents via skin. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S423-S433. [PMID: 30095010 DOI: 10.1080/21691401.2018.1498349] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Cancer is the largest family of diseases that involve abnormal uncontrolled cell growth which metastasizes to other parts of the body. The most common type of cancers includes lung, liver, colorectal, prostate, stomach, breast and cervical cancer with skin cancer excluding melanoma (contribute up to 40% of the cases). The conventional treatment approaches like surgery, chemotherapy, etc., have several side effects such as severe inflammation and pain. Hence, pharmacotherapeutic approaches of antineoplastic agents can be advantageous for treating various forms of cancer through the skin. Novel transdermal techniques and preparations have been emerged to overcome the limitations of skin and to penetrate inside the cancerous cells by transporting through the deeper tissues of the skin. The transdermal penetration of drugs using different formulations such as nanocarriers, physical penetration enhancement techniques, chemical penetration enhancers and newer technologies such as gels, dendrimers, needle-free injection jet etc., show improved patient compliance, abolition of scars and economic value. The topical delivery of antineoplastic agents is an attractive choice for increasing site-specific delivery, reducing side effects and improving therapeutic effects. The objective of this review is to present insights into pharmacotherapeutic techniques, which can be used for transdermal delivery of anticancer agents through skin due to its potential to create a new frontier in treatment of cancer.
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Affiliation(s)
- Pravin Shende
- a Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management , SVKM's NMIMS , V. L. Mehta Road, Vile Parle (West) , Mumbai , India
| | - Jai Vaidya
- a Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management , SVKM's NMIMS , V. L. Mehta Road, Vile Parle (West) , Mumbai , India
| | - R S Gaud
- a Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management , SVKM's NMIMS , V. L. Mehta Road, Vile Parle (West) , Mumbai , India
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122
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Haq A, Goodyear B, Ameen D, Joshi V, Michniak-Kohn B. Strat-M® synthetic membrane: Permeability comparison to human cadaver skin. Int J Pharm 2018; 547:432-437. [DOI: 10.1016/j.ijpharm.2018.06.012] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 06/03/2018] [Accepted: 06/05/2018] [Indexed: 10/14/2022]
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123
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Ammar HO, Mohamed MI, Tadros MI, Fouly AA. Transdermal Delivery of Ondansetron Hydrochloride via Bilosomal Systems: In Vitro, Ex Vivo, and In Vivo Characterization Studies. AAPS PharmSciTech 2018; 19:2276-2287. [PMID: 29845503 DOI: 10.1208/s12249-018-1019-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/12/2018] [Indexed: 11/30/2022] Open
Abstract
Ondansetron hydrochloride (OND) is commonly used for management of postoperative and chemotherapeutic-induced nausea and vomiting. It suffers from low bioavailability (60%) and rapid elimination (t1/2; 3-4 h). The current work aimed to develop OND-loaded bilosomes as a promising transdermal delivery system capable of surmount drug limitations. The variables influencing the development of OND-loaded bilosomes and niosomes (18 systems) via the thin film hydration technique were investigated, including surfactant type (Span®60 or Span®80), surfactant/cholesterol molar ratio (7:0, 7:1, or 7:3), and sodium deoxycholate (SDC) concentration (0, 2.5, or 5%, w/v). The systems were characterized for particle size, polydispersity index, zeta potential, drug entrapment efficiency (EE%), and in vitro permeation. Based on factorial analysis (32·21) and calculations of desirability values, six systems were further subjected to ex vivo permeation through excised rat skin, differential scanning calorimetry (DSC), powder x-ray diffraction (PXRD), and transmission electron microscopy. Histopathological and in vivo permeation studies in rats were conducted on the best achieved system (B6) in comparison to drug solution. Higher desirability values were achieved with Span® 60-based bilosomes, surfactant/cholesterol molar ratio of 7:1, and SDC concentration of 2.5% w/v with respect to small vesicle size, polydispersity index and high zeta potential, EE%, and cumulative drug permeation. OND was dispersed in amorphous state as revealed from DSC and PXRD studies. No marked effect was observed in rat skin following application of B6 system while higher ex vivo and in vivo cumulative permeation profiles were revealed. Bilosomal systems were considered as safe and efficient carriers for the transdermal delivery for OND.
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124
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Haque T, Talukder MMU. Chemical Enhancer: A Simplistic Way to Modulate Barrier Function of the Stratum Corneum. Adv Pharm Bull 2018; 8:169-179. [PMID: 30023318 PMCID: PMC6046426 DOI: 10.15171/apb.2018.021] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/26/2018] [Accepted: 05/29/2018] [Indexed: 11/09/2022] Open
Abstract
Human skin could be a prime target to deliver drugs into the human body as it is the largest organ of human body. However, the main challenge of delivering drug into the skin is the stratum corneum (SC), the outer layer of epidermis, which performs the main barrier function of the skin. Scientists have developed several techniques to overcome the barrier properties of the skin, which include other physical and chemical techniques. The most common and convenient technique is to use special formulation additives (chemical enhancers, CEs) which either drags the drug molecule along with it or make changes in the SC structure, thereby allowing the drug molecule to penetrate in to the SC. The main focus is to deliver drugs in the certain layers of the skin (for topical delivery) or ensuring proper percutaneous absorption (for transdermal delivery). However, skin drug delivery is still very challenging as different CEs act in different ways on the skin and they have different types of interaction with different drugs. Therefore, proper understanding on the mechanism of action of CE is mandatory. In this article, the effect of several CEs on skin has been reviewed based on the published articles. The main aim is to compile the recent knowledge on skin-CE interaction in order to design a topical and transdermal formulation efficiently. A properly designed formulation would help the drug either to deposit into the target layer or to cross the barrier membrane to reach the systemic circulation.
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Affiliation(s)
- Tasnuva Haque
- Department of Pharmacy, East West University, A/2, Jahurul Islam City Gate, Aftab Nagar Main Rd, Dhaka-1212, Bangladesh
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125
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Danaei M, Dehghankhold M, Ataei S, Hasanzadeh Davarani F, Javanmard R, Dokhani A, Khorasani S, Mozafari MR. Impact of Particle Size and Polydispersity Index on the Clinical Applications of Lipidic Nanocarrier Systems. Pharmaceutics 2018; 10:E57. [PMID: 29783687 PMCID: PMC6027495 DOI: 10.3390/pharmaceutics10020057] [Citation(s) in RCA: 1903] [Impact Index Per Article: 317.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 02/07/2023] Open
Abstract
Lipid-based drug delivery systems, or lipidic carriers, are being extensively employed to enhance the bioavailability of poorly-soluble drugs. They have the ability to incorporate both lipophilic and hydrophilic molecules and protecting them against degradation in vitro and in vivo. There is a number of physical attributes of lipid-based nanocarriers that determine their safety, stability, efficacy, as well as their in vitro and in vivo behaviour. These include average particle size/diameter and the polydispersity index (PDI), which is an indication of their quality with respect to the size distribution. The suitability of nanocarrier formulations for a particular route of drug administration depends on their average diameter, PDI and size stability, among other parameters. Controlling and validating these parameters are of key importance for the effective clinical applications of nanocarrier formulations. This review highlights the significance of size and PDI in the successful design, formulation and development of nanosystems for pharmaceutical, nutraceutical and other applications. Liposomes, nanoliposomes, vesicular phospholipid gels, solid lipid nanoparticles, transfersomes and tocosomes are presented as frequently-used lipidic drug carriers. The advantages and limitations of a range of available analytical techniques used to characterize lipidic nanocarrier formulations are also covered.
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Affiliation(s)
- M Danaei
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
| | - M Dehghankhold
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
| | - S Ataei
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
| | - F Hasanzadeh Davarani
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
| | - R Javanmard
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
| | - A Dokhani
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
| | - S Khorasani
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
| | - M R Mozafari
- Australasian Nanoscience and Nanotechnology Initiative, 8054 Monash University LPO, Clayton, Victoria 3168, Australia.
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126
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Kuche K, Maheshwari R, Tambe V, Mak KK, Jogi H, Raval N, Pichika MR, Kumar Tekade R. Carbon nanotubes (CNTs) based advanced dermal therapeutics: current trends and future potential. NANOSCALE 2018; 10:8911-8937. [PMID: 29722421 DOI: 10.1039/c8nr01383g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The search for effective and non-invasive delivery modules to transport therapeutic molecules across skin has led to the discovery of a number of nanocarriers (viz.: liposomes, ethosomes, dendrimers, etc.) in the last few decades. However, available literature suggests that these delivery modules face several issues including poor stability, low encapsulation efficiency, and scale-up hurdles. Recently, carbon nanotubes (CNTs) emerged as a versatile tool to deliver therapeutics across skin. Superior stability, high loading capacity, well-developed synthesis protocol as well as ease of scale-up are some of the reason for growing interest in CNTs. CNTs have a unique physical architecture and a large surface area with unique surface chemistry that can be tailored for vivid biomedical applications. CNTs have been thus largely engaged in the development of transdermal systems such as tuneable hydrogels, programmable nonporous membranes, electroresponsive skin modalities, protein channel mimetic platforms, reverse iontophoresis, microneedles, and dermal buckypapers. In addition, CNTs were also employed in the development of RNA interference (RNAi) based therapeutics for correcting defective dermal genes. This review expounds the state-of-art synthesis methodologies, skin penetration mechanism, drug liberation profile, loading potential, characterization techniques, and transdermal applications along with a summary on patent/regulatory status and future scope of CNT based skin therapeutics.
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Affiliation(s)
- Kaushik Kuche
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Opposite Air Force Station Palaj, Gandhinagar, Gujarat 382355, India.
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127
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Kandasamy S, Moniruzzaman M, Sivapragasam M, Shamsuddin MR, Mutalib MIA. Formulation and characterization of acetate based ionic liquid in oil microemulsion as a carrier for acyclovir and methotrexate. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.08.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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128
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Jin SP, Li Z, Choi EK, Lee S, Kim YK, Seo EY, Chung JH, Cho S. Urban particulate matter in air pollution penetrates into the barrier-disrupted skin and produces ROS-dependent cutaneous inflammatory response in vivo. J Dermatol Sci 2018; 91:S0923-1811(18)30202-0. [PMID: 29731195 DOI: 10.1016/j.jdermsci.2018.04.015] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 03/22/2018] [Accepted: 04/23/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Particulate matter (PM) is an integral part of air pollution, which is a mixture of particles suspended in the air. Recently, it has been reported that PM is associated with increased risks of skin diseases, especially atopic dermatitis in children. However, it is unclear if PM directly goes into the skin and what mechanisms are involved in response to PM. OBJECTIVE To see whether PM could penetrate into the barrier-disrupted skin, produce reactive oxygen species (ROS), and elicit an inflammatory response. METHODS We collected PMs during a winter in Seoul and used cultured keratinocytes for in vitro study and tape-stripped BALB/c mice for in vivo study. RESULTS Keratinocyte cytotoxicity increased in a dose-dependent manner by PM treatment. IL-8 and MMP-1 mRNA expression and protein levels were significantly increased compared to control by qPCR and ELISA, respectively. Cellular ROS production was increased by PM treatment, and antioxidant N-acetyl cysteine pretreatment prevented induction of inflammatory cytokines IL-8 and MMP-1. In PM-treated keratinocytes, electron-dense subcellular particles were observed by transmission electron microscopy. PM was observed inside hair follicles in both intact and barrier-disrupted skin in vivo. Additionally, intercellular penetration of PM was seen in the barrier-disrupted skin. Repeated PM application induced epidermal thickening and dermal inflammation with neutrophil infiltration. Finally, N-acetyl cysteine could ameliorate skin inflammation induced by PM application. CONCLUSION PM penetrates into the barrier-disrupted skin, causing inflammation, demonstrating detrimental effects in the skin.
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Affiliation(s)
- Seon-Pil Jin
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University, Republic of Korea; Deparment of Biomedical Science, Seoul National University Graduate School, Republic of Korea
| | - Zhenyu Li
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University, Republic of Korea; Deparment of Biomedical Science, Seoul National University Graduate School, Republic of Korea
| | - Eun Kyung Choi
- Laboratory of Electron Microscope, Department of Pathology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Serah Lee
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Yoen Kyung Kim
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Eun Young Seo
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University, Republic of Korea
| | - Jin Ho Chung
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University, Republic of Korea; Deparment of Biomedical Science, Seoul National University Graduate School, Republic of Korea
| | - Soyun Cho
- Department of Dermatology, Seoul National University College of Medicine, Republic of Korea; Institute of Human-Environmental Interface Biology, Medical Research Center, Seoul National University, Republic of Korea; Department of Dermatology, Seoul National University Boramae Medical Center, Republic of Korea.
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129
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Sodeifian G, Razmimanesh F. Diffusional interaction behavior of NSAIDs in lipid bilayer membrane using molecular dynamics (MD) simulation: Aspirin and Ibuprofen. J Biomol Struct Dyn 2018; 37:1666-1684. [PMID: 29695194 DOI: 10.1080/07391102.2018.1464956] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this research, for the first time, molecular dynamics (MD) method was used to simulate aspirin and ibuprofen at various concentrations and in neutral and charged states. Effects of the concentration (dosage), charge state, and existence of an integral protein in the membrane on the diffusion rate of drug molecules into lipid bilayer membrane were investigated on 11 systems, for which the parameters indicating diffusion rate and those affecting the rate were evaluated. Considering the diffusion rate, a suitable score was assigned to each system, based on which, analysis of variance (ANOVA) was performed. By calculating the effect size of the indicative parameters and total scores, an optimum system with the highest diffusion rate was determined. Consequently, diffusion rate controlling parameters were obtained: the drug-water hydrogen bond in protein-free systems and protein-drug hydrogen bond in the systems containing protein.
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Affiliation(s)
- Gholamhossein Sodeifian
- a Faculty of Engineering, Department of Chemical Engineering, Modeling and Simulation Centre , University of Kashan , Kashan 87317-53153 , Iran
| | - Fariba Razmimanesh
- a Faculty of Engineering, Department of Chemical Engineering, Modeling and Simulation Centre , University of Kashan , Kashan 87317-53153 , Iran
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130
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Rangsimawong W, Obata Y, Opanasopit P, Ngawhirunpat T, Takayama K. Enhancement of Galantamine HBr Skin Permeation Using Sonophoresis and Limonene-Containing PEGylated Liposomes. AAPS PharmSciTech 2018; 19:1093-1104. [PMID: 29168128 DOI: 10.1208/s12249-017-0921-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 11/07/2017] [Indexed: 11/30/2022] Open
Abstract
This study aimed to investigate the effect of low-frequency sonophoresis (SN) and limonene-containing PEGylated liposomes (PL) on the transdermal delivery of galantamine HBr (GLT). To evaluate the skin penetration mechanism, confocal laser scanning microscopy (CLSM), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC) were employed. The application of SN led to more GLT penetration into and through the skin than GLT solution alone. The liposomes also improved GLT permeation, and 2% limonene-containing PL (PL-LI2%) exhibited the highest GLT permeation, followed by PL-LI1%, PL-LI0.1%, and PL. The CLSM images of PL-LI2% resulted in the highest fluorescence intensity of fluorescent hydrophilic molecules in the deep skin layer, and the rhodamine PE-labeled liposome membrane was distributed in the intercellular region of the stratum corneum (SC). PL-LI2% induced significant changes in intercellular lipids in the SC, whereas SN had no effect on intercellular lipids of the SC. DSC thermograms showed that the greatest decrease in the lipid transition temperature occurred in PL-LI2%-treated SC. SN might improve drug permeation through an intracellular pathway, while limonene-containing liposomes play an important role in delivering GLT through an intercellular pathway by increasing the fluidity of intercellular lipids in the SC. Moreover, a small vesicle size and high membrane fluidity might enhance the transportation of intact vesicles through the skin.
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131
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Pathan IB, Jaware BP, Shelke S, Ambekar W. Curcumin loaded ethosomes for transdermal application: Formulation, optimization, in-vitro and in-vivo study. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.11.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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132
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133
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Jose A, Labala S, Ninave KM, Gade SK, Venuganti VVK. Effective Skin Cancer Treatment by Topical Co-delivery of Curcumin and STAT3 siRNA Using Cationic Liposomes. AAPS PharmSciTech 2018. [PMID: 28639178 DOI: 10.1208/s12249-017-0833-y] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The aim of the present study was to evaluate the effectiveness of iontophoretic co-delivery of curcumin and anti-STAT3 siRNA using cationic liposomes against skin cancer. Curcumin was encapsulated in DOTAP-based cationic liposomes and then complexed with STAT3 siRNA. This nanocomplex was characterized for the average particle size, zeta-potential, and encapsulation efficiency. The cell viability studies in B16F10 mouse melanoma cells have shown that the co-delivery of curcumin and STAT3 siRNA significantly (p < 0.05) inhibited the cancer cell growth compared with either liposomal curcumin or STAT3 siRNA alone. The curcumin-loaded liposomes were able to penetrate up to a depth of 160 μm inside the skin after iontophoretic (0.47 mA/cm2) application. The in vivo efficacy studies were performed in the mouse model of melanoma skin cancer. Co-administration of the curcumin and STAT3 siRNA using liposomes significantly (p < 0.05) inhibited the tumor progression as measured by tumor volume and tumor weight compared with either liposomal curcumin or STAT3 siRNA alone. Furthermore, the iontophoretic administration of curcumin-loaded liposome-siRNA complex showed similar effectiveness in inhibiting tumor progression and STAT3 protein suppression compared with intratumoral administration. Taken together, cationic liposomes can be utilized for topical iontophoretic co-delivery of small molecule and siRNA for effective treatment of skin diseases.
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134
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Tombs EL, Nikolaou V, Nurumbetov G, Haddleton DM. Transdermal Delivery of Ibuprofen Utilizing a Novel Solvent-Free Pressure-sensitive Adhesive (PSA): TEPI® Technology. J Pharm Innov 2017; 13:48-57. [PMID: 29497462 PMCID: PMC5816128 DOI: 10.1007/s12247-017-9305-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
PURPOSE The main objective of this present study was the investigation of potential novel transdermal patch technology (TEPI®) delivering ibuprofen as the active pharmaceutical ingredient (API) using a novel poly(ether-urethane)-silicone crosslinked pressure-sensitive adhesive (PSA) as the drug reservoir in a solvent-free manufacturing process. METHODS The patch was synthesized utilizing the hot-melt crosslinking technique without the addition of solvents at 80 °C in 100% relative humidity. Dissolution and permeation studies performed utilizing diffusion cells and subsequently HPLC validated methods were employed to determine the API content in the acceptor solution. Accelerated stability studies were also performed at 40 °C and 70% relative humidity. The adhesive performance of the fabricated patch was evaluated utilizing loop tack adhesion tests. RESULTS In vitro permeation experiments across both Strat-M® and human skin demonstrated that ibuprofen can easily be released from the adhesive matrix and penetrate through the studied membrane. A comparison on the permeation rates of the API across the two membranes indicated that there is not a strong correlation between the obtained data. The presence of chemical enhancers facilitated an increased flux of the API higher than observed in the basic formulation. Initial stability studies of the optimized formulation showed no degradation with respect to the drug content. Adhesion studies were also performed indicating higher values when compared with commercially available products. CONCLUSIONS The present study demonstrated the fabrication of an ibuprofen patch utilizing a versatile, solvent-free drug delivery platform. Upon optimization of the final system, the resulting patch offers many advantages compared to commercially available formulations including high drug loading (up to 25 wt%), good adhesion, and painless removal leaving no residues on the skin. This PSA offers many advantages over existing adhesive technology. Graphical Abstractᅟ.
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Affiliation(s)
- Emma L. Tombs
- Medherant Ltd, The Venture Centre University of Warwick Science Park, Coventry, CV4 7EZ UK
| | - Vasiliki Nikolaou
- Medherant Ltd, The Venture Centre University of Warwick Science Park, Coventry, CV4 7EZ UK
| | - Gabit Nurumbetov
- Medherant Ltd, The Venture Centre University of Warwick Science Park, Coventry, CV4 7EZ UK
| | - David M. Haddleton
- Medherant Ltd, The Venture Centre University of Warwick Science Park, Coventry, CV4 7EZ UK
- Chemistry Department, University of Warwick, Library road, Coventry, CV4 7AL UK
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135
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Omolu A, Bailly M, Day RM. Assessment of solid microneedle rollers to enhance transmembrane delivery of doxycycline and inhibition of MMP activity. Drug Deliv 2017; 24:942-951. [PMID: 28618841 PMCID: PMC8241162 DOI: 10.1080/10717544.2017.1337826] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Many chronic wounds exhibit high matrix metalloproteinase (MMP) activity that impedes the normal wound healing process. Intradermal delivery (IDD) of sub-antimicrobial concentrations of doxycycline, as an MMP inhibitor, could target early stages of chronic wound development and inhibit further wound progression. To deliver doxycycline intradermally, the skin barrier must be disrupted. Microneedle rollers offer a minimally invasive technique to penetrate the skin by creating multiple microchannels that act as temporary conduits for drugs to diffuse through. In this study, an innovative and facile approach for delivery of doxycycline across Strat-MTM membrane was investigated using microneedle rollers. The quantity and rate of doxycycline diffusing through the micropores directly correlated with increasing microneedle lengths (250, 500 and 750 μm). Treatment of Strat-MTM with microneedle rollers resulted in a reduction in fibroblast-mediated collagen gel contraction and MMP activity compared with untreated Strat-MTM. Our results show that treatment of an epidermal mimetic with microneedle rollers provides sufficient permeabilization for doxycycline diffusion and inhibition of MMP activity. We conclude that microneedle rollers are a promising, clinically ready tool suitable for delivery of doxycycline intradermally to treat chronic wounds.
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Affiliation(s)
- Abbie Omolu
- a Applied Biomedical Engineering Group, Division of Medicine , University College London , London , UK
| | | | - Richard M Day
- a Applied Biomedical Engineering Group, Division of Medicine , University College London , London , UK
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136
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McCoy J, Goren A, Kovacevic M, Situm M, Stanimirovic A, Shapiro J, Sinclair R. Styling without shedding: Novel topical formula reduces hair shedding by contracting the arrector pili muscle. Dermatol Ther 2017; 31. [PMID: 29193553 DOI: 10.1111/dth.12575] [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: 08/18/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 11/30/2022]
Abstract
Approximately 40% of women experience excessive hair shedding during styling (e.g., hair brushing). Previously, we demonstrated that topically applied phenylephrine, a potent α1 adrenergic receptor agonist, can be used to contract the arrector pili muscle of the follicular unit; thus, increasing the force required to pluck hair and reducing shedding during brushing. While demonstrating efficacy, phenylephrine has several drawbacks when applied to the scalp, including the possibility cardiovascular events. We hypothesized that a high concentration of a weak α1 agonist would allow for: (a) rapid penetration through the stratum corneum eliciting a quick response; (b) a low probability of cardiac adverse events owing to the low receptor binding affinity; and (c) an efficacy of the weak α1 agonist similar to that of phenylephrine at the local site of application. Accordingly, we developed a novel topical solution, AB-102, containing a high concentration of a weak α1 agonist. Several studies were conducted to test the safety and efficacy of AB-102. In a dose escalating safety study, utilizing a wearable holter monitor, we observed no cardiac or hemodynamic adverse events. In addition, in a controlled efficacy study, AB-102 reduced the number of hairs shed during brushing by up to 77% (average of 38%).
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Affiliation(s)
| | - Andy Goren
- Applied Biology, Irvine, California.,Department of Dermatology and Venereology, University of Rome "G.Marconi", Rome, Italy
| | - Maja Kovacevic
- Department of Dermatology and Venereology, University of Rome "G.Marconi", Rome, Italy
| | - Mirna Situm
- Department of Dermatology and Venereology, University Hospital Center "Sestre milosrdnice", Zagreb, Croatia
| | - Andrija Stanimirovic
- Department of Clinical Medicine, University of Applied Health Sciences, Zagreb, Croatia
| | - Jerry Shapiro
- Department of Dermatology, New York University Langone Medical Center, New York City, New York
| | - Rodney Sinclair
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
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137
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Banzhaf CA, Lin LL, Dang N, Freeman M, Haedersdal M, Prow TW. The fractional laser-induced coagulation zone characterized over time by laser scanning confocal microscopy-A proof of concept study. Lasers Surg Med 2017; 50:70-77. [DOI: 10.1002/lsm.22758] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Christina A. Banzhaf
- Department of Dermatology; University of Copenhagen; Bispebjerg Hospital Copenhagen Denmark
- Dermatology Research Centre; Translational Research Institute, Princess Alexandra Hospital, University of Queensland; Brisbane Australia
| | - Lynlee L. Lin
- Dermatology Research Centre; Translational Research Institute, Princess Alexandra Hospital, University of Queensland; Brisbane Australia
| | - Nhung Dang
- Dermatology Research Centre; Translational Research Institute, Princess Alexandra Hospital, University of Queensland; Brisbane Australia
- Biomaterials Engineering and Nanomedicine Strand; Future Industries Institute; University of South Australia; Adelaide South Australia
| | - Michael Freeman
- Dermatology Research Centre; Translational Research Institute, Princess Alexandra Hospital, University of Queensland; Brisbane Australia
- Skin Centre; Benowa, Queensland Australia
| | - Merete Haedersdal
- Department of Dermatology; University of Copenhagen; Bispebjerg Hospital Copenhagen Denmark
| | - Tarl W. Prow
- Dermatology Research Centre; Translational Research Institute, Princess Alexandra Hospital, University of Queensland; Brisbane Australia
- Biomaterials Engineering and Nanomedicine Strand; Future Industries Institute; University of South Australia; Adelaide South Australia
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139
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Čuříková BA, Procházková K, Filková B, Diblíková P, Svoboda J, Kováčik A, Vávrová K, Zbytovská J. Simplified stratum corneum model membranes for studying the effects of permeation enhancers. Int J Pharm 2017; 534:287-296. [PMID: 29061325 DOI: 10.1016/j.ijpharm.2017.10.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 10/17/2017] [Accepted: 10/19/2017] [Indexed: 01/10/2023]
Abstract
The activity of transdermal permeation enhancers is usually evaluated in vitro on human or animal skin, but skin samples can be hard to source and highly variable. To provide a more consistent basis for evaluating the activity of permeation enhancers, we prepared relatively simple and inexpensive artificial membranes that imitate the stratum corneum (SC) lipid matrix. Our membranes were composed of stearic acid, cholesterol, cholesterol sulfate and a ceramide (CER) component consisting of N-2-hydroxystearoyl phytosphingosine (CER[AP]) and/or N-stearoyl phytosphingosine (CER[NP]). First, the permeation of theophylline (TH) and indomethacin (IND) through these membranes was compared with their permeation through porcine skin. Because the mixed CER[AP]/[NP] membrane gave the closest results to skin, this membrane was then used to test the effects of two permeation enhancers: N-dodecyl azepan-2-one (Azone) and (S)-N-acetylproline dodecyl ester (L-Pro2). Both enhancers significantly increased the flux of TH and IND through the skin and, even more markedly, through the lipid membrane, L-Pro2 having a stronger effect than Azone. Thus, our simplified model of the SC lipid membrane based on phytosphingosine CERs appears to be suitable for mimicking skin permeation.
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Affiliation(s)
- Barbora Amélie Čuříková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Kamila Procházková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Barbora Filková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Petra Diblíková
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Jan Svoboda
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Andrej Kováčik
- Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Kateřina Vávrová
- Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Jarmila Zbytovská
- University of Chemistry and Technology Prague, Faculty of Chemical Technology, Technická 5, 166 28, Prague, Czech Republic; Charles University, Faculty of Pharmacy in Hradec Králové, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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Design, Development, and Optimization of Dexibuprofen Microemulsion Based Transdermal Reservoir Patches for Controlled Drug Delivery. BIOMED RESEARCH INTERNATIONAL 2017; 2017:4654958. [PMID: 29090219 PMCID: PMC5635477 DOI: 10.1155/2017/4654958] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 06/25/2017] [Accepted: 07/04/2017] [Indexed: 11/24/2022]
Abstract
The aim of the study was to develop a reservoir-type transdermal patch for a controlled delivery of dexibuprofen and to evaluate its in vivo anti-inflammatory activity in Albino Wistar rats. In order to develop these patches, six formulations of dexibuprofen microemulsion comprising ethyl oleate, Tween 80: PG (2 : 1), and water were prepared by simplex lattice design and characterized. The reservoir compartment was filled with these microemulsions and in vitro release and skin permeation were assessed. The optimized patch was obtained on the basis of the responses: Q24 and flux. The impact of drug loading, surface area, membrane thickness, adhesive, and agitation speed on drug release and permeation was also studied. The skin sensitivity reaction and in vivo anti-inflammatory activity of optimized patch were evaluated. Stability study at three different temperatures for three months was carried out. The result suggests that a membrane based patch with zero-order release rate, Q24 of 79.13 ± 3.08%, and maximum flux of 331.17 µg/cm2h can be obtained exhibiting suitable anti-inflammatory activity with no visible skin sensitivity reaction. The outcomes of stability study recommend storage of patches at 4°C having shelf-life of 6.14 months. The study demonstrates that the reservoir-type transdermal patch of dexibuprofen microemulsion has a potential of delivering drug across skin in controlled manner with required anti-inflammatory activity.
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141
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Shetty PK, Manikkath J, Tupally K, Kokil G, Hegde AR, Raut SY, Parekh HS, Mutalik S. Skin Delivery of EGCG and Silibinin: Potential of Peptide Dendrimers for Enhanced Skin Permeation and Deposition. AAPS PharmSciTech 2017; 18:2346-2357. [PMID: 28124212 DOI: 10.1208/s12249-017-0718-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/10/2017] [Indexed: 12/17/2022] Open
Abstract
The aim of the present study was to evaluate the ability of the peptide dendrimers to facilitate transdermal delivery of antioxidants, silibinin, and epigallocatechin-3-gallate (EGCG). Drug-peptide dendrimer complexes were prepared and evaluated for their ability to permeate across the skin. The data revealed the ready formation of complexes between drug and peptide dendrimer in a molar ratio of 1:1. In vitro permeation studies using excised rat skin and drug-peptide dendrimer complexes showed highest values for cumulative drug permeation at the end of 12 h (Q12), with corresponding permeability coefficient (Kp) and enhancement ratio values also determined at this time point. With silibinin, 3.96-, 1.81-, and 1.06-fold increase in skin permeation was observed from silibinin-peptide dendrimer complex, simultaneous application of silibinin + peptide dendrimer, and pretreatment of skin with peptide dendrimer, respectively, in comparison with passive diffusion. With EGCG, 9.82-, 2.04-, and 1.72-fold increase in skin permeation was observed from EGCG-peptide dendrimer complex, simultaneous application of EGCG + peptide dendrimer, and pretreatment of skin with peptide dendrimer, respectively, in comparison with passive diffusion. The present study demonstrates the application of peptide dendrimers in effectively delivering antioxidants such as EGCG and silibinin into the skin, thus offering the potential to provide antioxidant effects when delivered via appropriately formulated topical preparations.
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142
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Banerjee A, Ibsen K, Iwao Y, Zakrewsky M, Mitragotri S. Transdermal Protein Delivery Using Choline and Geranate (CAGE) Deep Eutectic Solvent. Adv Healthc Mater 2017; 6. [PMID: 28337858 DOI: 10.1002/adhm.201601411] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 02/21/2017] [Indexed: 12/20/2022]
Abstract
Transdermal delivery of peptides and other biological macromolecules is limited due to skin's inherent low permeability. Here, the authors report the use of a deep eutectic solvent, choline and geranate (CAGE), to enhance topical delivery of proteins such as bovine serum albumin (BSA, molecular weight: ≈66 kDa), ovalbumin (OVA, molecular weight: ≈45 kDa) and insulin (INS, molecular weight: 5.8 kDa). CAGE enhances permeation of BSA, OVA, and insulin into porcine skin ex vivo, penetrating deep into the epidermis and dermis. Studies using tritium-labeled BSA and fluorescein isothiocyanate labeled insulin show significantly enhanced delivery of proteins into and across porcine skin, penetrating the skin in a time-dependent manner. Fourier transform IR spectra of porcine stratum corneum (SC) samples before and after incubation in CAGE show a reduction in peak area attributed to SC lipid content, suggesting lipid extraction from the SC. Circular dichroism confirms that CAGE does not affect insulin's secondary conformation. In vivo studies in rats show that topical application of 10 U insulin dispersed in CAGE (25 U kg-1 insulin dose) leads to a highly significant 40% drop in blood glucose levels in 4 h that is relatively sustained for 12 h. Taken together, these studies demonstrate that CAGE is a promising vehicle for transdermal delivery of therapeutic proteins; specifically, as a noninvasive delivery alternative to injectable insulin for the treatment of diabetes.
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Affiliation(s)
- Amrita Banerjee
- Department of Chemical Engineering and Center for Bioengineering University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Kelly Ibsen
- Department of Chemical Engineering and Center for Bioengineering University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Yasunori Iwao
- Department of Pharmaceutical Engineering School of Pharmaceutical Sciences University of Shizuoka Shizuoka 422‐8526 Japan
| | - Michael Zakrewsky
- Department of Chemical Engineering and Center for Bioengineering University of California Santa Barbara Santa Barbara CA 93106 USA
| | - Samir Mitragotri
- Department of Chemical Engineering and Center for Bioengineering University of California Santa Barbara Santa Barbara CA 93106 USA
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143
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Kim KT, Kim JS, Kim MH, Park JH, Lee JY, Lee W, Min KK, Song MG, Choi CY, Kim WS, Oh HK, Kim DD. Effect of Enhancers on in vitro and in vivo Skin Permeation and Deposition of S-Methyl- L-Methionine. Biomol Ther (Seoul) 2017; 25:434-440. [PMID: 28274096 PMCID: PMC5499623 DOI: 10.4062/biomolther.2016.254] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 01/12/2017] [Accepted: 01/14/2017] [Indexed: 11/21/2022] Open
Abstract
S-methyl-l-methionine (SMM), also known as vitamin U, is commercially available as skin care cosmetic products for its wound healing and photoprotective effects. However, the low skin permeation expected of SMM due to its hydrophilic nature with a log P value of −3.3, has not been thoroughly addressed. The purpose of this study thus was to evaluate the effect of skin permeation enhancers on the skin permeation/deposition of SMM. Among the enhancers tested for the in vitro skin permeation and deposition of SMM, oleic acid showed the most significant enhancing effect. Moreover, the combination of oleic acid and ethanol further enhanced in vitro permeation and deposition of SMM through hairless mouse skin. Furthermore, the combination of oleic acid and ethanol significantly increased the in vivo deposition of SMM in the epidermis/dermis for 12 hr, which was high enough to exert a therapeutic effect. Therefore, based on the in vitro and in vivo studies, the combination of oleic acid and ethanol was shown to be effective in improving the topical skin delivery of SMM, which may be applied in the cosmetic production process for SMM.
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Affiliation(s)
- Ki Taek Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji Su Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Hwan Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Ju-Hwan Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae-Young Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - WooIn Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Kuk Min
- CUSKIN Cosmeceutical and Biotechnology, Seoul 06530, Republic of Korea
| | - Min Gyu Song
- CUSKIN Cosmeceutical and Biotechnology, Seoul 06530, Republic of Korea
| | - Choon-Young Choi
- CUSKIN Cosmeceutical and Biotechnology, Seoul 06530, Republic of Korea
| | - Won-Serk Kim
- Department of Dermatology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea
| | - Hee Kyung Oh
- Department of Food and Nutrition, Jangan University, Hwaseong 18331, Republic of Korea
| | - Dae-Duk Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
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Kopečná M, Macháček M, Prchalová E, Štěpánek P, Drašar P, Kotora M, Vávrová K. Galactosyl Pentadecene Reversibly Enhances Transdermal and Topical Drug Delivery. Pharm Res 2017; 34:2097-2108. [PMID: 28664316 DOI: 10.1007/s11095-017-2214-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 06/14/2017] [Indexed: 12/01/2022]
Abstract
PURPOSE To study new skin penetration/permeation enhancers based on amphiphilic galactose derivatives. METHODS Two series of alkyl and alkenyl galactosides were synthesized and evaluated for their enhancing effect on transdermal/topical delivery of theophylline (TH), hydrocortisone (HC) and cidofovir (CDV), reversibility of their effects on transepidermal water loss (TEWL) and skin impedance, interaction with the stratum corneum using infrared spectroscopy, and cytotoxicity on keratinocytes and fibroblasts. RESULTS Initial evaluation identified 1-(α-D-galactopyranosyl)-(2E)-pentadec-2-ene A15 as a highly potent enhancer - it increased TH and HC flux through human skin 8.5 and 5 times, respectively. Compound A15 increased the epidermal concentration of a potent antiviral CDV 7 times over that reached by control and Span 20 (an established sugar-based enhancer). Infrared spectroscopy of human stratum corneum indicated interaction of A15 with skin barrier lipids but not proteins. These effects of A15 on the skin barrier were reversible (both TEWL and skin impedance returned to baseline values within 24 h after A15 had been removed from skin). In vitro toxicity of A15 on HaCaT keratinocytes and 3T3 fibroblasts was acceptable, with IC50 values over 60 μM. CONCLUSIONS Galactosyl pentadecene A15 is a potent enhancer with low toxicity and reversible action.
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Affiliation(s)
- Monika Kopečná
- Skin Barrier Research Group,, Charles University, Faculty of Pharmacy in Hradec Králové,, Akademika Heyrovského 1203,, 50005, Hradec Králové, Czech Republic
| | - Miloslav Macháček
- Department of Biochemical Sciences,, Charles University Faculty of Pharmacy in Hradec Králové,, Akademika Heyrovského 1203,, 50005, Hradec Králové, Czech Republic
| | - Eva Prchalová
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo náměstí 2,, 166 10, Praha 6, Czech Republic
| | - Petr Štěpánek
- Department of Chemistry of Natural Compounds,, University of Chemical Technology, Technická 5, 166 28, 6 - Dejvice, Praha, Czech Republic
| | - Pavel Drašar
- Department of Chemistry of Natural Compounds,, University of Chemical Technology, Technická 5, 166 28, 6 - Dejvice, Praha, Czech Republic
| | - Martin Kotora
- Institute of Organic Chemistry and Biochemistry AS CR, Flemingovo náměstí 2,, 166 10, Praha 6, Czech Republic.,Department of Organic Chemistry, Faculty of Science, Charles University, Albertov 6,, 128 43, Praha 2, Czech Republic
| | - Kateřina Vávrová
- Skin Barrier Research Group,, Charles University, Faculty of Pharmacy in Hradec Králové,, Akademika Heyrovského 1203,, 50005, Hradec Králové, Czech Republic.
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145
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Puri A, Murnane KS, Blough BE, Banga AK. Effects of chemical and physical enhancement techniques on transdermal delivery of 3-fluoroamphetamine hydrochloride. Int J Pharm 2017. [PMID: 28633107 DOI: 10.1016/j.ijpharm.2017.06.041] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The present study investigated the passive transdermal delivery of 3-fluoroamphetamine hydrochloride (PAL-353) and evaluated the effects of chemical and physical enhancement techniques on its permeation through human skin. In vitro drug permeation studies through dermatomed human skin were performed using Franz diffusion cells. Passive permeation of PAL-353 from propylene glycol and phosphate buffered saline as vehicles was studied. Effect of oleic acid, maltose microneedles, ablative laser, and anodal iontophoresis on its transdermal permeation was investigated. Infrared spectroscopy, scanning electron microscopy, calcein imaging, confocal laser microscopy, and histology studies were used to characterize the effects of chemical and physical treatments on skin integrity. Passive permeation of PAL-353 (propylene glycol) after 24h was found to be 1.03±0.17μg/cm2. Microneedles, oleic acid, and laser significantly increased the permeation to 7.35±4.87μg/cm2, 38.26±5.56μg/cm2, and 523.24±86.79μg/cm2 (p<0.05), respectively. A 548-fold increase in drug permeation was observed using iontophoresis as compared to its passive permeation from phosphate buffered saline (p<0.05). The characterization studies depicted disruption of the stratum corneum by microneedles and laser treatment. Overall, transdermal permeation of PAL-353 was significantly enhanced by the use of chemical and physical enhancement techniques.
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Affiliation(s)
- Ashana Puri
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA, 30341, USA
| | - Kevin S Murnane
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA, 30341, USA
| | - Bruce E Blough
- Center for Organic and Medicinal Chemistry, Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - Ajay K Banga
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA, 30341, USA.
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146
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Salerno A, Devers T, Bolzinger MA, Pelletier J, Josse D, Briançon S. In vitro skin decontamination of the organophosphorus pesticide Paraoxon with nanometric cerium oxide CeO 2. Chem Biol Interact 2017; 267:57-66. [DOI: 10.1016/j.cbi.2016.04.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 04/21/2016] [Accepted: 04/25/2016] [Indexed: 12/25/2022]
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147
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Caon T, Mazzarino L, Simões CMO, Senna EL, Silva MAS. Lipid- and Polymer-Based Nanostructures for Cutaneous Delivery of Curcumin. AAPS PharmSciTech 2017; 18:920-925. [PMID: 27230504 DOI: 10.1208/s12249-016-0554-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 05/16/2016] [Indexed: 01/29/2023] Open
Abstract
It is well-known that nanoencapsulation may overcome biopharmaceutical limitations of curcumin (CUR), but studies regarding the contribution of the vesicular nature of CUR-loaded nanoparticles on skin permeation are still scarce. Therefore, the effect of three colloidal systems (solid lipid nanoparticles (SLN), nanoemulsion (NE), and polymeric nanoparticles (NP)) on the control of cutaneous permeation of CUR was investigated in porcine ear skin/Franz diffusion cells. Colloidal suspensions were designed to present a similar particle size (±170 nm), narrow size distribution (PdI < 0.2), and high entrapment efficiency (>99%). Zeta potential values were -0.13, -9.68 and -36.7 mV for the CUR-loaded NP, SLN and NE, respectively. Nanoencapsulation resulted in a cumulative amount of CUR in the more superficial layers of the skin. NP significantly enhanced the compound retention in the epidermis, which was approximately 2.49- and 3.32-fold more than SLN and NE, respectively. The CUR levels into the dermis were significantly increased after treatment with NE, which may be associated with repulsion phenomena in surface skin. Therefore, a more superficial or deeper action of CUR on the skin may be obtained depending on nanostructure type. While NPs are more effective in upper skin layers, NE should be prioritized when a dermal action for the CUR is required.
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148
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Fujimoto T, Ito M, Ito S, Kanazawa H. Fractional laser-assisted percutaneous drug delivery via temperature-responsive liposomes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:679-689. [PMID: 28277004 DOI: 10.1080/09205063.2017.1296346] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Liposomes are used for transdermal delivery of drugs and vaccines. Our objective was to develop temperature-responsive (TR) liposomes to achieve temperature-dependent, controlled release of an encapsulated drug, and use fractional laser irradiation to enhance transdermal permeability of these liposomes. TR-liposomes prepared using a thermosensitive polymer derived from poly-N-isopropylacrylamide, N,N-dimethylacrylamide, egg phosphatidylcholine, and dioleoylphosphatidylethanolamine, delivered fluorescein isothiocyanate-conjugated ovalbumin (OVA-FITC) as a model drug. Effect of temperature on liposome size and drug release rate was estimated at two temperatures. Transdermal permeation through hairless mouse skin, with and without CO2 fractional laser irradiation, and penetration into Yucatan micro-pig skin were investigated using Franz cell and fluorescence microscopy. Dynamic light scattering showed that mean liposome diameter nearly doubled from 190 to 325 nm between 37 and 50 °C. The rate and amount of OVA-FITC released from TR-liposomes were higher at 45 °C that those at 37 °C. Transdermal permeation of OVA-FITC across non-irradiated skin from both TR- and unmodified liposomes was minimal at 37 °C, but increased at 45 °C. Laser irradiation significantly increased transdermal permeation of both liposome groups at both temperatures. Fluorescence microscopy of frozen biopsy specimens showed deeper penetration of FITC from unmodified liposomes compared to that from polymer-modified liposomes. Rhodamine accumulation was not observed with polymer-modified liposomes at either temperature. Temperature-dependent controlled release of an encapsulated drug was achieved using the TR-liposomes. However, TR-liposomes showed lower skin permeability despite higher hydrophobicity. Fractional laser irradiation significantly increased the transdermal permeation. Additional studies are required to control liposome size and optimize transdermal permeation properties.
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Affiliation(s)
- Takahiro Fujimoto
- a Clinic F , Tokyo , Japan.,b Faculty of Pharmacy , Keio University , Tokyo , Japan
| | - Masayuki Ito
- c Vitamin C60 Bioresearch Corporation , Tokyo , Japan
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149
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Martins M, Azoia NG, Melle-Franco M, Ribeiro A, Cavaco-Paulo A. Permeation of skin with (C 60) fullerene dispersions. Eng Life Sci 2017; 17:732-738. [PMID: 32624818 DOI: 10.1002/elsc.201600244] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 01/05/2017] [Accepted: 01/20/2017] [Indexed: 12/19/2022] Open
Abstract
Dispersions in transcutol/isopropyl myristate make C60 fullerene molecules suitable for transdermal delivery. We found that C60 can successfully permeate the skin using pig skin in Franz diffusion cells. Molecular dynamics simulations and transmission electron microscopy confirmed these observations. Basic cosmetic formulations with transcutol/isopropyl myristate without harsh organic solvents show a high potential for delivery of C60 for biopharmaceutical and cosmetics applications.
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Affiliation(s)
- Madalena Martins
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
| | - Nuno G Azoia
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
| | - Manuel Melle-Franco
- CICECO-Aveiro Institute of Materials University of Aveiro Campus Universitário de Santiago Aveiro Portugal
| | - Artur Ribeiro
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
| | - Artur Cavaco-Paulo
- Centre of Biological Engineering (CEB) University of Minho Campus of Gualtar Braga Portugal
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150
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Haak C, Hannibal J, Paasch U, Anderson R, Haedersdal M. Laser-induced thermal coagulation enhances skin uptake of topically applied compounds. Lasers Surg Med 2017; 49:582-591. [DOI: 10.1002/lsm.22642] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2017] [Indexed: 12/31/2022]
Affiliation(s)
- C.S. Haak
- Department of Dermatology; Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
| | - J. Hannibal
- Department of Clinical Biochemistry; Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
| | - U. Paasch
- Department of Dermatology, Venereology and Allergology; University of Leipzig; Germany
| | - R.R. Anderson
- WellmanCenter for Photomedicine; Massachusetts General Hospital; Harvard Medical School; Boston Massachusetts
| | - M. Haedersdal
- Department of Dermatology; Bispebjerg Hospital; University of Copenhagen; Copenhagen Denmark
- WellmanCenter for Photomedicine; Massachusetts General Hospital; Harvard Medical School; Boston Massachusetts
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