101
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Ioele G, Tavano L, De Luca M, Ragno G, Picci N, Muzzalupo R. Photostability and ex-vivo permeation studies on diclofenac in topical niosomal formulations. Int J Pharm 2015; 494:490-7. [PMID: 26307262 DOI: 10.1016/j.ijpharm.2015.08.053] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 08/12/2015] [Accepted: 08/18/2015] [Indexed: 10/23/2022]
Abstract
Photostability studies were performed on topical formulations containing diclofenac (DC). Niosomal gels were designed as photostabilization systems and ascorbic acid was also added to the new topical formulations because of its antioxidant property. Photodegradation tests were applied on commercial formulations containing DC and novel prepared gels, according to the ICH rules. The experiments were monitored by spectrophotometry and the data processed by multivariate curve resolution analysis to estimate the spectra and concentration profiles of evolved components. Characterization of niosomes was evaluated by size and distribution measurement, morphological analysis and encapsulation efficiency. Permeation experiments were performed across rabbit ear skin up to 24 h. Photodegradation rate of DC was found very fast in commercial formulation, with a residual content of 90% after only 4.38 min under a radiant exposure of 450 W/m(2). Photostability resulted increased significantly when the drug was entrapped in niosomal systems. The best results were obtained by reaching a 10% degradation after 50.00 min of light exposure after incorporation of DC in niosomes in presence of 5% ascorbic acid. Moreover, niosomal gel also influenced the permeation capability of DC by enhancing the transdermal delivery of the drug. The cumulative dose permeated of DC from niosomal gel was about three times that obtained with the commercial gel.
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Affiliation(s)
- Giuseppina Ioele
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy.
| | - Lorena Tavano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy
| | - Michele De Luca
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy
| | - Gaetano Ragno
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy
| | - Nevio Picci
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy
| | - Rita Muzzalupo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (CS), Italy
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102
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Manca ML, Castangia I, Zaru M, Nácher A, Valenti D, Fernàndez-Busquets X, Fadda AM, Manconi M. Development of curcumin loaded sodium hyaluronate immobilized vesicles (hyalurosomes) and their potential on skin inflammation and wound restoring. Biomaterials 2015; 71:100-109. [PMID: 26321058 DOI: 10.1016/j.biomaterials.2015.08.034] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 08/08/2015] [Accepted: 08/14/2015] [Indexed: 02/02/2023]
Abstract
In the present work new highly biocompatible nanovesicles were developed using polyanion sodium hyaluronate to form polymer immobilized vesicles, so called hyalurosomes. Curcumin, at high concentration was loaded into hyalurosomes and physico-chemical properties and in vitro/in vivo performances of the formulations were compared to those of liposomes having the same lipid and drug content. Vesicles were prepared by direct addition of dispersion containing the polysaccharide sodium hyaluronate and the polyphenol curcumin to a commercial mixture of soy phospholipids, thus avoiding the use of organic solvents. An extensive study was carried out on the physico-chemical features and properties of curcumin-loaded hyalurosomes and liposomes. Cryogenic transmission electron microscopy and small-angle X-ray scattering showed that vesicles were spherical, uni- or oligolamellar and small in size (112-220 nm). The in vitro percutaneous curcumin delivery studies on intact skin showed an improved ability of hyalurosomes to favour a fast drug deposition in the whole skin. Hyalurosomes as well as liposomes were biocompatible, protected in vitro human keratinocytes from oxidative stress damages and promoted tissue remodelling through cellular proliferation and migration. Moreover, in vivo tests underlined a good effectiveness of curcumin-loaded hyalurosomes to counteract 12-O-tetradecanoilphorbol (TPA)-produced inflammation and injuries, diminishing oedema formation, myeloperoxydase activity and providing an extensive skin reepithelization. Thanks to the one-step and environmentally-friendly preparation method, component biocompatibility and safety, good in vitro and in vivo performances, the hyalurosomes appear as promising nanocarriers for cosmetic and pharmaceutical applications.
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Affiliation(s)
- M L Manca
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - I Castangia
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - M Zaru
- Instituto de Reconocimiento Molecular y Desarrollo Tecnológico, Centro Mixto Universidad Politécnica de Valencia-Universidad de Valencia, Spain
| | - A Nácher
- Icnoderm Srl, Sardegna Ricerche Ed.5, Pula, Cagliari, 09010, Italy; Dept. of Pharmacy and Pharmaceutical Technology, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia, Spain
| | - D Valenti
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - X Fernàndez-Busquets
- Nanomalaria Unit, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; Barcelona Institute for Global Health (ISGlobal, Hospital Clínic-Universitat de Barcelona), Spain; Nanoscience and Nanotechnology Institute (IN2UB), University of Barcelona, Spain
| | - A M Fadda
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - M Manconi
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy.
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103
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Bsieso EA, Nasr M, Moftah NH, Sammour OA, Abd El Gawad NA. Could nanovesicles containing a penetration enhancer clinically improve the therapeutic outcome in skin fungal diseases? Nanomedicine (Lond) 2015; 10:2017-31. [DOI: 10.2217/nnm.15.49] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To study whether the formulation of an antifungal drug in nanovesicular form containing skin penetration enhancer would clinically modulate its therapeutic effectiveness. Materials & methods: Nanovesicles containing different skin penetration enhancers ‘PEVs’ were prepared and loaded with sertaconazole. Penetration-enhancer vesicles were characterized for entrapment efficiency, particle size, zeta potential, elasticity, viscosity, morphology and ex vivo skin deposition. Selected formulae were preliminary tested for clinical efficacy on patients suffering from tinea corporis and tinea versicolor. Results & conclusion: The nanosize of the vesicles, their content of penetration enhancer and their deformable nature are three cornerstones positively influencing the therapeutic outcome of topical antifungal therapy, and hence, can be considered a promising treatment modality for skin fungal diseases.
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Affiliation(s)
- Eman A Bsieso
- Department of Pharmaceutics, Faculty of Pharmacy, October 6 University, Giza Governorate, Egypt
| | - Maha Nasr
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Monazamet El Wehda El Afrikia St., El Abbassia, Cairo, Egypt
| | - Noha H Moftah
- Department of Dermatology, STDs & Andrology, Faculty of Medicine, Al-Minya University, Al-Minya, Egypt
| | - Omaima A Sammour
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Monazamet El Wehda El Afrikia St., El Abbassia, Cairo, Egypt
| | - Nabaweya A Abd El Gawad
- Department of Pharmaceutics, Faculty of Pharmacy, October 6 University, Giza Governorate, Egypt
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104
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Cosco D, Paolino D, Maiuolo J, Marzio LD, Carafa M, Ventura CA, Fresta M. Ultradeformable liposomes as multidrug carrier of resveratrol and 5-fluorouracil for their topical delivery. Int J Pharm 2015; 489:1-10. [DOI: 10.1016/j.ijpharm.2015.04.056] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 04/15/2015] [Accepted: 04/16/2015] [Indexed: 10/23/2022]
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105
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Propranolol hydrochloride-loaded liposomal gel for transdermal delivery: Characterization and in vivo evaluation. Int J Pharm 2015; 487:135-41. [DOI: 10.1016/j.ijpharm.2015.04.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 04/10/2015] [Indexed: 11/23/2022]
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106
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Ma M, Wang J, Guo F, Lei M, Tan F, Li N. Development of nanovesicular systems for dermal imiquimod delivery: physicochemical characterization and in vitro/in vivo evaluation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:191. [PMID: 25989936 DOI: 10.1007/s10856-015-5524-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 05/08/2015] [Indexed: 06/04/2023]
Abstract
The aim of the current investigation was to develop and statistically evaluate nanovesicular systems for dermal imiquimod delivery. To this purpose, transethosomes were prepared with phospholipid, ethanol and different permeation enhancers. Conventional ethosomes, with soy phospholipid and ethanol, were used as control. The prepared vesicles were characterized for size, zeta potential, stability and entrapment efficiency. The optimal transethosomal formulation with mean particle size of 82.3 ± 9.5 nm showed the higher entrapment efficiency (68.69 ± 1.7%). In vitro studies, permeation results of accumulated drug and local accumulation efficiency were significantly higher for transethosomes (24.64 µg/cm(2) and 6.70, respectively) than control (14.45 µg/cm(2) and 3.93, respectively). Confocal laser scanning microscopy of rhodamine 6G-loaded transethosomes revealed an enhanced retention into the deeper skin layers as compared to conventional ethosomes. Besides, Fourier-transform infra-red spectroscopy studies were also performed to understand the mechanism of interaction between skin and carriers. What's more, results of in vivo studies indicated the transethosomes of imiquimod providing the most effectiveness for dermal delivery among all of the formulations. These results suggested that transethosomes would be a promising dermal carrier for imiquimod in actinic keratose treatment.
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Affiliation(s)
- Man Ma
- Tianjin Key Laboratory of Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
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107
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Mokarizadeh A, Hassanzadeh K, Abdi M, Soraya H, Faryabi MR, Mohammadi E, Ahmadi A. Transdermal delivery of bovine milk vesicles in patients with multiple sclerosis: A novel strategy to induce MOG-specific tolerance. Med Hypotheses 2015; 85:141-4. [PMID: 25986518 DOI: 10.1016/j.mehy.2015.04.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 03/30/2015] [Accepted: 04/19/2015] [Indexed: 12/18/2022]
Abstract
Recently, butyrophilin (BTN) - a protein which shares cross-reactive epitopes with myelin oligodendrocyte glycoprotein (MOG) - has been found in milk. A high amount of milk BTN has been reported in the outer membrane of vesicular structures known as exosome and milk fat globule membrane (MFGM). These vesicles can act as Trojan horses, passing their BTN content through epidermis or other biologic barriers of the body. By altering the dose schedule and route of administration, the BTN-bearing vesicles (exosomes and MFGMs) may acquire enough potential to be used in MOG-specific immunotherapy program. Regarding above evidence and considering immunological characteristics of skin-associated lymphoid tissue (SALT), transdermal delivery of bovine milk vesicles, whether through topical administration of bovine milk or by using epicutaneous administration techniques, could be considered as an intriguing approach to induce MOG-specific tolerance in patients with multiple sclerosis.
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Affiliation(s)
- Aram Mokarizadeh
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran; Department of Immunology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.
| | - Kambiz Hassanzadeh
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mohammad Abdi
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Hamid Soraya
- Cellular and Molecular Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohammad Reza Faryabi
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Ebrahim Mohammadi
- Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Abbas Ahmadi
- Cellular and Molecular Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran; Department of Immunology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
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108
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Pando D, Matos M, Gutiérrez G, Pazos C. Formulation of resveratrol entrapped niosomes for topical use. Colloids Surf B Biointerfaces 2015; 128:398-404. [PMID: 25766923 DOI: 10.1016/j.colsurfb.2015.02.037] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 12/18/2014] [Accepted: 02/17/2015] [Indexed: 11/28/2022]
Abstract
A new approach to the formulation of resveratrol (RSV) entrapped niosomes for topical use is proposed in this work. Niosomes were formulated with Gelot 64 (G64) as surfactant, and two skin-compatible unsaturated fatty acids (oleic and linoleic acids), commonly used in pharmaceutical formulations, as penetration enhancers. Niosomes were prepared by two different methods: a thin film hydration method with minor modifications followed by a sonication stage (TFH-S), and an ethanol injection modified method (EIM). Niosomes prepared with the EIM method were in the range of 299-402 nm, while the TFH-S method produced larger niosomes in the range of 293-496 nm. Moreover, niosomes with higher RSV entrapment efficiency (EE) and better stability were generated by the EIM method. Ex vivo transdermal experiments, carried out in Franz diffusion cells on newborn pig skin, indicated that niosomes prepared by the EIM method were more effective for RSV penetration in epidermis and dermis (EDD), with values up to 21% for both penetration enhancers tested. The EIM method, which yielded the best RSV-entrapped niosomes, seems to be the most suitable for scaling up.
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Affiliation(s)
- Daniel Pando
- Department of Chemical and Environmental Engineering, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain
| | - María Matos
- Department of Chemical and Environmental Engineering, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain
| | - Gemma Gutiérrez
- Department of Chemical and Environmental Engineering, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain
| | - Carmen Pazos
- Department of Chemical and Environmental Engineering, University of Oviedo, Julián Clavería 8, 33006 Oviedo, Spain.
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109
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Zhai Y, Xu R, Wang Y, Liu J, Wang Z, Zhai G. Ethosomes for skin delivery of ropivacaine: preparation, characterization and ex vivo penetration properties. J Liposome Res 2015; 25:316-24. [PMID: 25625544 DOI: 10.3109/08982104.2014.999686] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Ropivacaine, a novel long-acting local anesthetic, has been proved to own superior advantage. However, Naropin® Injection, the applied form in clinic, can cause patient non-convenience. The purpose of this study was to formulate ropivacaine (RPV) in ethosomes and evaluate the potential of ethosome formulation in delivering RPV transdermally. The RPV-loaded ethosomes were prepared with thin-film dispersion technique and the formulation was characterized in terms of size, zeta potential, differential scanning calorimetry (DSC) analysis and X-ray diffraction (XRD) study. The results showed that the optimized RPV-ethosomes displayed a typical lipid bilayer structure with a narrow size distribution of 73.86 ± 2.40 nm and drug loading of 8.27 ± 0.37%, EE of 68.92 ± 0.29%. The results of DSC and XRD study indicated that RPV was in amorphous state when encapsulated into ethosomes. Furthermore, the results of ex vivo permeation study proved that RPV-ethosomes could promote the permeability in a high-efficient, rapid way (349.0 ± 11.5 μg cm(-2) at 12 h and 178.8 ± 7.1 μg cm(-2) at 0.5 h). The outcomes of histopathology study forecasted that the interaction between ethosomes and skin could loosen the tight conjugation of corneocyte layers and weaken the permeation barrier. In conclusion, RPV-ethosomes could be a promising delivery system to encapsulate RPV and deliver RPV for transdermal administration.
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Affiliation(s)
- Yingjie Zhai
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Rui Xu
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Yi Wang
- b Department of Orthopedics, Changhai Hospital , Second Military Medical University , Shanghai , China , and
| | - Jiyong Liu
- c Department of Pharmacy, Changhai Hospital , Second Military Medical University , Shanghai , China
| | - Zimin Wang
- b Department of Orthopedics, Changhai Hospital , Second Military Medical University , Shanghai , China , and
| | - Guangxi Zhai
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
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110
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Development of novel diolein–niosomes for cutaneous delivery of tretinoin: Influence of formulation and in vitro assessment. Int J Pharm 2014; 477:176-86. [DOI: 10.1016/j.ijpharm.2014.10.031] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/10/2014] [Accepted: 10/11/2014] [Indexed: 11/21/2022]
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111
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Aburahma MH. Bile salts-containing vesicles: promising pharmaceutical carriers for oral delivery of poorly water-soluble drugs and peptide/protein-based therapeutics or vaccines. Drug Deliv 2014; 23:1847-67. [PMID: 25390191 DOI: 10.3109/10717544.2014.976892] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Most of the new drugs, biological therapeutics (proteins/peptides) and vaccines have poor performance after oral administration due to poor solubility or degradation in the gastrointestinal tract (GIT). Though, vesicular carriers exemplified by liposomes or niosomes can protect the entrapped agent to a certain extent from degradation. Nevertheless, the harsh GIT environment exemplified by low pH, presence of bile salts and enzymes limits their capabilities by destabilizing them. In response to that, more resistant bile salts-containing vesicles (BS-vesicles) were developed by inclusion of bile salts into lipid bilayers constructs. The effectiveness of orally administrated BS-vesicles in improving the performance of vesicles has been demonstrated in researches. Yet, these attempts did not gain considerable attention. This is the first review that provides a comprehensive overview of utilizing BS-vesicles as a promising pharmaceutical carrier with a special focus on their successful applications in oral delivery of therapeutic macromolecules and vaccines. Insights on the possible mechanisms by which BS-vesicles improve the oral bioavailability of the encapsulated drug or immunological response of entrapped vaccine are explained. In addition, methods adopted to prepare and characterize BS-vesicles are described. Finally, the gap in the scientific researches tackling BS-vesicles that needs to be addressed is highlighted.
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Affiliation(s)
- Mona Hassan Aburahma
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Cairo , Egypt
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112
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Hamishehkar H, Shokri J, Fallahi S, Jahangiri A, Ghanbarzadeh S, Kouhsoltani M. Histopathological evaluation of caffeine-loaded solid lipid nanoparticles in efficient treatment of cellulite. Drug Dev Ind Pharm 2014; 41:1640-6. [DOI: 10.3109/03639045.2014.980426] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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113
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Zhai Y, Zhai G. Advances in lipid-based colloid systems as drug carrier for topic delivery. J Control Release 2014; 193:90-9. [DOI: 10.1016/j.jconrel.2014.05.054] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/21/2014] [Accepted: 05/27/2014] [Indexed: 10/25/2022]
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114
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Abdel-Mottaleb MMA, Try C, Pellequer Y, Lamprecht A. Nanomedicine strategies for targeting skin inflammation. Nanomedicine (Lond) 2014; 9:1727-43. [DOI: 10.2217/nnm.14.74] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Topical treatment of skin diseases is an attractive strategy as it receives high acceptance from patients, resulting in higher compliance and therapeutic outcomes. Recently, the use of variable nanocarriers for dermal application has been widely explored, as they offer several advantages compared with conventional topical preparations, including higher skin penetration, controlled and targeted drug delivery and the achievement of higher therapeutic effects. This article will focus on skin inflammation or dermatitis as it is one of the most common skin problems, describing the different types and causes of dermatitis, as well as the typical treatment regimens. The potential use of nanocarriers for targeting skin inflammation and the achievement of higher therapeutic effects using nanotechnology will be explored.
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Affiliation(s)
- Mona MA Abdel-Mottaleb
- Laboratory of Pharmaceutical Engineering & Biopharmaceutics, EA4267, University of Franche-Comté, Besançon, France
- Department of Pharmaceutics & industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Celine Try
- Laboratory of Pharmaceutical Engineering & Biopharmaceutics, EA4267, University of Franche-Comté, Besançon, France
- Clinical Investigation Center (Inserm CIC 1431), Regional University Hospital of Besançon, Besançon, France
| | - Yann Pellequer
- Laboratory of Pharmaceutical Engineering & Biopharmaceutics, EA4267, University of Franche-Comté, Besançon, France
| | - Alf Lamprecht
- Laboratory of Pharmaceutical Engineering & Biopharmaceutics, EA4267, University of Franche-Comté, Besançon, France
- Laboratory of Pharmaceutical Technology & Biopharmaceutics, University of Bonn, Bonn, Germany
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115
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Photodynamic killing of Enterococcus faecalis in dentinal tubules using mTHPC incorporated in liposomes and invasomes. Clin Oral Investig 2014; 19:373-84. [DOI: 10.1007/s00784-014-1271-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 06/09/2014] [Indexed: 10/25/2022]
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116
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Cima MJ, Lee H, Daniel K, Tanenbaum LM, Mantzavinou A, Spencer KC, Ong Q, Sy JC, Santini J, Schoellhammer CM, Blankschtein D, Langer RS. Single compartment drug delivery. J Control Release 2014; 190:157-71. [PMID: 24798478 DOI: 10.1016/j.jconrel.2014.04.049] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/18/2014] [Accepted: 04/25/2014] [Indexed: 02/06/2023]
Abstract
Drug design is built on the concept that key molecular targets of disease are isolated in the diseased tissue. Systemic drug administration would be sufficient for targeting in such a case. It is, however, common for enzymes or receptors that are integral to disease to be structurally similar or identical to those that play important biological roles in normal tissues of the body. Additionally, systemic administration may not lead to local drug concentrations high enough to yield disease modification because of rapid systemic metabolism or lack of sufficient partitioning into the diseased tissue compartment. This review focuses on drug delivery methods that physically target drugs to individual compartments of the body. Compartments such as the bladder, peritoneum, brain, eye and skin are often sites of disease and can sometimes be viewed as "privileged," since they intrinsically hinder partitioning of systemically administered agents. These compartments have become the focus of a wide array of procedures and devices for direct administration of drugs. We discuss the rationale behind single compartment drug delivery for each of these compartments, and give an overview of examples at different development stages, from the lab bench to phase III clinical trials to clinical practice. We approach single compartment drug delivery from both a translational and a technological perspective.
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Affiliation(s)
- Michael J Cima
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Materials Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Heejin Lee
- TARIS Biomedical, Inc., Lexington, MA 02421, USA
| | - Karen Daniel
- TARIS Biomedical, Inc., Lexington, MA 02421, USA
| | - Laura M Tanenbaum
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Aikaterini Mantzavinou
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Kevin C Spencer
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Materials Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Qunya Ong
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jay C Sy
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - John Santini
- On Demand Therapeutics, Inc., Menlo Park, CA 94025, USA
| | - Carl M Schoellhammer
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Daniel Blankschtein
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Robert S Langer
- The David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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117
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Barua S, Mitragotri S. Challenges associated with Penetration of Nanoparticles across Cell and Tissue Barriers: A Review of Current Status and Future Prospects. NANO TODAY 2014; 9:223-243. [PMID: 25132862 PMCID: PMC4129396 DOI: 10.1016/j.nantod.2014.04.008] [Citation(s) in RCA: 684] [Impact Index Per Article: 68.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Nanoparticles (NPs) have emerged as an effective modality for the treatment of various diseases including cancer, cardiovascular and inflammatory diseases. Various forms of NPs including liposomes, polymer particles, micelles, dendrimers, quantum dots, gold NPs and carbon nanotubes have been synthesized and tested for therapeutic applications. One of the greatest challenges that limit the success of NPs is their ability to reach the therapeutic site at necessary doses while minimizing accumulation at undesired sites. The biodistribution of NPs is determined by body's biological barriers that manifest in several distinct ways. For intravascular delivery of NPs, the barrier manifests in the form of: (i) immune clearance in the liver and spleen, (ii) permeation across the endothelium into target tissues, (iii) penetration through the tissue interstitium, (iv) endocytosis in target cells, (v) diffusion through cytoplasm and (vi) eventually entry into the nucleus, if required. Certain applications of NPs also rely on delivery through alternate routes including skin and mucosal membranes of the nose, lungs, intestine and vagina. In these cases, the diffusive resistance of these tissues poses a significant barrier to delivery. This review focuses on the current understanding of penetration of NPs through biological barriers. Emphasis is placed on transport barriers and not immunological barriers. The review also discusses design strategies for overcoming the barrier properties.
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Affiliation(s)
- Sutapa Barua
- Center for Bioengineering, Department of Chemical Engineering University of California, Santa Barbara, CA 93106
| | - Samir Mitragotri
- Center for Bioengineering, Department of Chemical Engineering University of California, Santa Barbara, CA 93106
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Transdermal delivery of flurbiprofen from surfactant-based vesicles: Particle characterization and the effect of water on in vitro transport. Int J Pharm 2014; 464:75-84. [DOI: 10.1016/j.ijpharm.2013.12.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2013] [Revised: 12/03/2013] [Accepted: 12/27/2013] [Indexed: 11/22/2022]
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Gao W, Vecchio D, Li J, Zhu J, Zhang Q, Fu V, Li J, Thamphiwatana S, Lu D, Zhang L. Hydrogel containing nanoparticle-stabilized liposomes for topical antimicrobial delivery. ACS NANO 2014; 8:2900-7. [PMID: 24483239 PMCID: PMC4004330 DOI: 10.1021/nn500110a] [Citation(s) in RCA: 120] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 02/01/2014] [Indexed: 05/18/2023]
Abstract
Adsorbing small charged nanoparticles onto the outer surfaces of liposomes has become an effective strategy to stabilize liposomes against fusion prior to "seeing" target bacteria, yet allow them to fuse with the bacteria upon arrival at the infection sites. As a result, nanoparticle-stabilized liposomes have become an emerging drug delivery platform for treatment of various bacterial infections. To facilitate the translation of this platform for clinical tests and uses, herein we integrate nanoparticle-stabilized liposomes with hydrogel technology for more effective and sustained topical drug delivery. The hydrogel formulation not only preserves the structural integrity of the nanoparticle-stabilized liposomes, but also allows for controllable viscoeleasticity and tunable liposome release rate. Using Staphylococcus aureus bacteria as a model pathogen, we demonstrate that the hydrogel formulation can effectively release nanoparticle-stabilized liposomes to the bacterial culture, which subsequently fuse with bacterial membrane in a pH-dependent manner. When topically applied onto mouse skin, the hydrogel formulation does not generate any observable skin toxicity within a 7-day treatment. Collectively, the hydrogel containing nanoparticle-stabilized liposomes hold great promise for topical applications against various microbial infections.
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Affiliation(s)
- Weiwei Gao
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Drew Vecchio
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Jieming Li
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Jingying Zhu
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Qiangzhe Zhang
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Victoria Fu
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Jiayang Li
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Soracha Thamphiwatana
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
| | - Diannan Lu
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Liangfang Zhang
- Department of NanoEngineering, Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, United States
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Uchino T, Lefeber F, Gooris G, Bouwstra J. Characterization and skin permeation of ketoprofen-loaded vesicular systems. Eur J Pharm Biopharm 2014; 86:156-66. [DOI: 10.1016/j.ejpb.2013.02.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Revised: 01/28/2013] [Accepted: 02/21/2013] [Indexed: 11/26/2022]
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121
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Marianecci C, Rinaldi F, Di Marzio L, Mastriota M, Pieretti S, Celia C, Paolino D, Iannone M, Fresta M, Carafa M. Ammonium glycyrrhizinate-loaded niosomes as a potential nanotherapeutic system for anti-inflammatory activity in murine models. Int J Nanomedicine 2014; 9:635-51. [PMID: 24493924 PMCID: PMC3908944 DOI: 10.2147/ijn.s55066] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Liquorice extracts demonstrate therapeutic efficacy in treating dermatitis, eczema, and psoriasis when compared with corticosteroids. In this work, nonionic surfactant vesicles (niosomes, NSVs) containing polysorbate 20 (Tween 20), cholesterol, and cholesteryl hemisuccinate at different molar concentrations were used to prepare monoammonium glycyrrhizinate (AG)-loaded NSVs. The anti-inflammatory properties of AG-loaded NSVs were investigated in murine models. METHODS The physicochemical properties of the NSVs were characterized using dynamic light scattering. The fluidity of the lipid bilayer was evaluated by measuring the fluorescence intensity of diphenylhexatriene. The drug entrapment efficiency of AG was assessed using high-performance liquid chromatography. The physicochemical stability of the NSVs was evaluated as a function of time using dynamic light scattering combined with Turbiscan Lab Expert analysis. Serum stability was determined by incubating the NSVs with 10% v/v fetal bovine serum. The cytotoxic effects of the NSVs were investigated in human dermal fibroblasts using the Trypan blue dye exclusion assay (for cell mortality) and an MTT assay (for cell viability). Release profiles for the AG-loaded NSVs were studied in vitro using cellulose membranes. NSVs showing the most desirable physicochemical properties were selected to test for in vivo anti-inflammatory activity in murine models. The anti-inflammatory activity of the NSVs was investigated by measuring edema and nociception in mice stimulated with chemical agents. RESULTS NSVs showed favorable physicochemical properties for in vitro and in vivo administration. In addition, they demonstrated long-term stability based on Turbiscan Lab Expert analysis. The membrane fluidity of the NSVs was not affected by self-assembling of the surfactants into colloidal structures. Fluorescence anisotropy was found to be independent of the molar ratios of cholesteryl hemisuccinate and/or cholesterol during preparation of the NSVs. The anti-inflammatory AG drug showed no effect on the stability of the NSVs. In vivo experiments demonstrated that AG-loaded NSVs decreased edema and nociceptive responses when compared with AG alone and empty NSVs. In vitro and in vivo results demonstrated that pH sensitive and neutral NSVs show no statistical significant difference. CONCLUSION NSVs were nontoxic and showed features favorable for potential administration in vivo. In addition, neutral NSVs showed signs of increased anti-inflammatory and antinociceptive responses when compared with AG.
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Affiliation(s)
- Carlotta Marianecci
- Department of Drug Chemistry and Technologies, University Sapienza of Rome, Rome, Italy
| | - Federica Rinaldi
- Department of Drug Chemistry and Technologies, University Sapienza of Rome, Rome, Italy
| | - Luisa Di Marzio
- Department of Pharmacy, University G d’Annunzio of Chieti of Pescara, Chieti, Italy
| | - Marica Mastriota
- Department of Therapeutic Research and Medicine Evaluation, Istituto Superiore di Sanità, Rome, Italy
| | - Stefano Pieretti
- Department of Therapeutic Research and Medicine Evaluation, Istituto Superiore di Sanità, Rome, Italy
| | - Christian Celia
- Department of Pharmacy, University G d’Annunzio of Chieti of Pescara, Chieti, Italy
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX, USA
| | - Donatella Paolino
- Department of Health Sciences, University Magna Graecia of Catanzaro, University Campus S Venuta, Building of BioSciences, Germaneto, Italy
| | - Michelangelo Iannone
- ARPA Calabria, Environmental Epidemiology Center, Italy
- CNR, Neuroscience Institute, Pharmacology Section, Complesso “Nini Barbieri”, Roccelletta di Borgia, Italy
| | - Massimo Fresta
- Department of Health Sciences, University Magna Graecia of Catanzaro, University Campus S Venuta, Building of BioSciences, Germaneto, Italy
| | - Maria Carafa
- Department of Drug Chemistry and Technologies, University Sapienza of Rome, Rome, Italy
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Mbah CC, Builders PF, Attama AA. Nanovesicular carriers as alternative drug delivery systems: ethosomes in focus. Expert Opin Drug Deliv 2013; 11:45-59. [DOI: 10.1517/17425247.2013.860130] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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123
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Manca ML, Manconi M, Falchi AM, Castangia I, Valenti D, Lampis S, Fadda AM. Close-packed vesicles for diclofenac skin delivery and fibroblast targeting. Colloids Surf B Biointerfaces 2013; 111:609-17. [DOI: 10.1016/j.colsurfb.2013.07.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 05/14/2013] [Accepted: 07/03/2013] [Indexed: 01/08/2023]
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124
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Nanocarriers for antioxidant resveratrol: Formulation approach, vesicle self-assembly and stability evaluation. Colloids Surf B Biointerfaces 2013; 111:327-32. [DOI: 10.1016/j.colsurfb.2013.06.016] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 05/15/2013] [Accepted: 06/07/2013] [Indexed: 11/21/2022]
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125
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Thamphiwatana S, Fu V, Zhu J, Lu D, Gao W, Zhang L. Nanoparticle-stabilized liposomes for pH-responsive gastric drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:12228-33. [PMID: 23987129 PMCID: PMC4059759 DOI: 10.1021/la402695c] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report a novel pH-responsive gold nanoparticle-stabilized liposome system for gastric antimicrobial delivery. By adsorbing small chitosan-modified gold nanoparticles (diameter ~10 nm) onto the outer surface of negatively charged phospholipid liposomes (diameter ~75 nm), we show that at gastric pH the liposomes have excellent stability with limited fusion ability and negligible cargo releases. However, when the stabilized liposomes are present in an environment with neutral pH, the gold stabilizers detach from the liposomes, resulting in free liposomes that can actively fuse with bacterial membranes. Using Helicobacter pylori as a model bacterium and doxycycline as a model antibiotic, we demonstrate such pH-responsive fusion activity and drug release profile of the nanoparticle-stabilized liposomes. Particularly, at neutral pH the gold nanoparticles detach, and thus the doxycycline-loaded liposomes rapidly fuse with bacteria and cause superior bactericidal efficacy as compared to the free doxycycline counterpart. Our results suggest that the reported liposome system holds a substantial potential for gastric drug delivery; it remains inactive (stable) in the stomach lumen but actively interacts with bacteria once it reaches the mucus layer of the stomach where the bacteria may reside.
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Affiliation(s)
- Soracha Thamphiwatana
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Victoria Fu
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Jingying Zhu
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Diannan Lu
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Weiwei Gao
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | - Liangfang Zhang
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
- Corresponding author, Tel: 858-246-0999,
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Manca ML, Zaru M, Manconi M, Lai F, Valenti D, Sinico C, Fadda AM. Glycerosomes: a new tool for effective dermal and transdermal drug delivery. Int J Pharm 2013; 455:66-74. [PMID: 23911913 DOI: 10.1016/j.ijpharm.2013.07.060] [Citation(s) in RCA: 113] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 07/24/2013] [Accepted: 07/28/2013] [Indexed: 11/26/2022]
Abstract
This work describes glycerosomes, vesicles composed of phospholipids, glycerol, and water, as novel vesicular carriers for (trans)dermal drug delivery. In this work, glycerosomes were prepared by hydrating dipalmitoylglycerophosphatidylcholine-cholesterol films with glycerol aqueous solutions (10-30%, v/v). The model drug was diclofenac sodium salt and conventional liposomes were used as control. Prepared formulations were characterized in terms of size distribution, morphology, zeta potential, and vesicle deformability. Glycerosomes and liposomes were oligo/multilamellar vesicles, spherical in shape with a mean diameter ranging between 81 and 97 nm and a fairly narrow distribution (P.I.=0.14-0.19), negative zeta potential values (from -35 to -48) and drug loading capacity between 64 and 73%. Deformability index of both conventional liposomes and glycerosomes showed that glycerol is able to act as edge activator for dipalmitoylglycerophosphatidylcholine bilayers when used in concentration higher than 10%. DSC studies suggested that glycerosomes are in a more fluid state than conventional liposomes. In vitro transdermal delivery experiments showed an improved skin deposition and permeation of diclofenac when 20 and 30% glycerosomes were used. MTT test demonstrated that glycerosomes were able to reduce the in vitro drug toxicity versus keratinocytes.
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Affiliation(s)
- Maria Letizia Manca
- Dept. Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, CNBS, University of Cagliari, Cagliari 09124, Italy
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Shiozuka M, Nonomura Y, Matsuda R. Transdermal delivery of adriamycin to transplanted ehrlich ascites tumor in mice. Pharmaceutics 2013; 5:385-91. [PMID: 24300512 PMCID: PMC3836626 DOI: 10.3390/pharmaceutics5030385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 07/01/2013] [Accepted: 07/03/2013] [Indexed: 11/16/2022] Open
Abstract
There is considerable interest in the skin as a site of anti-cancer drug application. Nevertheless, the skin poses a formidable barrier to drug penetration, thereby limiting topical and transdermal bioavailability. However, we previously showed that a thioglycolate-based depilatory agent increases the drug permeability of mouse skin. In the present report, we investigated the skin permeability and efficacy of the anti-cancer drug adriamycin increased when administered transdermally to mice in combination with a thioglycolate-based depilatory agent. Adriamycin in combination with depilatory treatment reduced Ehrlich tumor growth in hairless mice about the weight and size of harvested tumors. In addition, our delivery method for adriamycin increased the therapeutic effectiveness of this agent by decreasing toxicity. Moreover, measurement of adriamycin autofluorescence revealed that topically applied adriamycin penetrate the dermis after depilatory agent treatment. These results indicate that the transdermal delivery of anti-cancer drugs is feasible by handy pretreatment of the skin with a thioglycolate-based depilatory agent.
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Affiliation(s)
- Masataka Shiozuka
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan.
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Pando D, Caddeo C, Manconi M, Fadda AM, Pazos C. Nanodesign of olein vesicles for the topical delivery of the antioxidant resveratrol. ACTA ACUST UNITED AC 2013; 65:1158-67. [PMID: 23837583 DOI: 10.1111/jphp.12093] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 05/09/2013] [Indexed: 02/04/2023]
Abstract
OBJECTIVES The ex-vivo percutaneous absorption of the natural antioxidant resveratrol in liposomes and niosomes was investigated. The influence of vesicle composition on their physicochemical properties and stability was evaluated. Liposomes containing resveratrol were formulated using soy phosphatidylcholine (Phospholipon90G). Innovative niosomes were formulated using mono- or diglycerides: glycerol monooleate (Peceol) and polyglyceryl-3 dioleate (Plurol OleiqueCC), respectively, two suitable skin-compatible oleins used in pharmaceutical formulations as penetration enhancers. METHODS Small, negatively charged vesicles with a mean size of approximately 200 nm were prepared. The accelerated stability of vesicles was evaluated using Turbiscan Lab Expert, and the bilayer deformability was also assessed. Ex-vivo transdermal experiments were carried out in Franz diffusion cells, on newborn pig skin, to study the influence of the different vesicle formulations on resveratrol skin delivery. KEY FINDINGS Results indicated a high cutaneous accumulation and a low transdermal delivery of resveratrol, especially when Peceol niosomes were used. CONCLUSIONS Overall, niosomes formulated with Plurol oleique or Peceol showed a better behaviour than liposomes in the cutaneous delivery of resveratrol.
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Affiliation(s)
- Daniel Pando
- Department Ingeniería Química y Tecnología del Medio Ambiente, University of Oviedo, Oviedo, Spain
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129
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Chen Y, Wang M, Fang L. Biomaterials as novel penetration enhancers for transdermal and dermal drug delivery systems. Drug Deliv 2013; 20:199-209. [DOI: 10.3109/10717544.2013.801533] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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130
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Carboni M, Falchi AM, Lampis S, Sinico C, Manca ML, Schmidt J, Talmon Y, Murgia S, Monduzzi M. Physicochemical, cytotoxic, and dermal release features of a novel cationic liposome nanocarrier. Adv Healthc Mater 2013. [PMID: 23184424 DOI: 10.1002/adhm.201200302] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A novel cationic liposome nanocarrier, having interesting performance in topical drug delivery, is here presented and evaluated for its features. Two penetration enhancers, namely monoolein and lauroylcholine chloride, are combined to rapidly formulate (15 min) a cationic liposome nanostructure endowed of excellent stability (>6 months) and skin penetration ability, along with low short-term cytotoxicity, as evaluated via the MTT test. Cytotoxicity tests and lipid droplet analysis give a strong indication that monoolein and lauroylcholine synergistically endanger long-term cells viability. The physicochemical features, investigated through SAXS, DLS, and cryo-TEM techniques, reveal that the nanostructure is retained after loading with diclofenac in its acid (hydrophobic) form. The drug release performances are studied using intact newborn pig skin. Analysis of the different skin strata proves that the drug mainly accumulates into the viable epidermis with almost no deposition into the derma. Indeed, the flux of the drug across the skin is exceptionally low, with only 1% release after 24 h. These results validate the use of this novel formulation for topical drug release when the delivery to the systemic circulation should be avoided.
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Affiliation(s)
- Maura Carboni
- Department of Chemical and Geological Sciences, University of Cagliari, CNBS and CSGI, s.s. 554, bivio Sestu, 09042 Monserrato (CA), Italy
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Chen J, Lu WL, Gu W, Lu SS, Chen ZP, Cai BC. Skin permeation behavior of elastic liposomes: role of formulation ingredients. Expert Opin Drug Deliv 2013; 10:845-56. [PMID: 23550630 DOI: 10.1517/17425247.2013.779252] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION With the incorporation of edge activators into the lipid bilayer structure, elasticity properties are given to liposomes. Regardless of the debate over the precise permeation mechanism of elastic liposomes, these vesicles have been proven to enhance drug permeation into or through skin in most cases. AREAS COVERED This article provides an overview of the formulation ingredients of elastic liposomes and their relationship with skin permeation behavior. The ingredients are divided into two categories of basic and optional ingredients. The effect of stability on permeation behavior of the vesicles is highlighted. EXPERT OPINION More attention should be paid to the stability of elastic liposomes. The different stability properties of the elastic liposomes following administration can induce different skin permeation behaviors of the vesicles. It is necessary to select the optimum composition of the elastic liposomes in order to control the stability and permeation behavior of the vesicles into or through the skin. Moreover, for the development of elastic liposomes, particular attention should also be paid to the drug leakage from the vesicles during long-term storage. The application of optional ingredients to improve the stability and/or elasticity of the elastic liposomes is becoming a new trend.
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Affiliation(s)
- Jun Chen
- Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, PR China
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132
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Prajapati VD, Jani GK, Moradiya NG, Randeria NP, Nagar BJ. Locust bean gum: a versatile biopolymer. Carbohydr Polym 2013; 94:814-21. [PMID: 23544637 DOI: 10.1016/j.carbpol.2013.01.086] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 01/13/2013] [Indexed: 12/22/2022]
Abstract
Biopolymers or natural polymers are an attractive class of biodegradable polymers since they are derived from natural sources, easily available, relatively cheap and can be modified by suitable reagent. Locust bean gum is one of them that have a wide potentiality in drug formulations due to its extensive application as food additive and its recognized lack of toxicity. It can be tailored to suit its demands of applicants in both the pharmaceutical and biomedical areas. Locust bean gum has a wide application either in the field of novel drug delivery system as rate controlling excipients or in tissue engineering as scaffold formation. Through keen references of reported literature on locust bean gum, in this review, we have described critical aspects of locust bean gum, its manufacturing process, physicochemical properties and applications in various drug delivery systems.
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Affiliation(s)
- Vipul D Prajapati
- Department of Pharmaceutics, S.S.R. College of Pharmacy, Saily-Silvassa Road, Saily, Silvassa, U.T. of D.N.H. 396 230, India.
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133
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Caddeo C, Sales OD, Valenti D, Saurí AR, Fadda AM, Manconi M. Inhibition of skin inflammation in mice by diclofenac in vesicular carriers: Liposomes, ethosomes and PEVs. Int J Pharm 2013; 443:128-36. [DOI: 10.1016/j.ijpharm.2012.12.041] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 12/24/2012] [Accepted: 12/29/2012] [Indexed: 11/24/2022]
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Bloom BS, Brauer JA, Geronemus RG. Ablative fractional resurfacing in topical drug delivery: an update and outlook. Dermatol Surg 2013; 39:839-48. [PMID: 23294061 DOI: 10.1111/dsu.12111] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND The effective delivery of therapeutic molecules to varied targets in the skin and elsewhere has been an area of ongoing research and development. OBJECTIVE To review the structure of the skin with an emphasis on topical drug delivery and to present the rationale for the use of ablative and nonablative fractional resurfacing in assisted drug delivery. METHODS AND MATERIALS Review of the currently available scientific literature on laser-assisted drug delivery. RESULTS A number of strategies can be employed to enhance topical drug delivery. Ablative fractional resurfacing (AFR) has been demonstrated to be effective in enhancing drug delivery. Further studies are needed to assess the use of nonablative fractional resurfacing in assisted drug delivery. CONCLUSION AFR-assisted drug delivery is a promising tool for the future of dermatology. We expect to see a number of agents to be paired with AFR for enhanced drug delivery. Further investigation is necessary to evaluate appropriate drug specific channel density and depth parameters. Factors that must be considered include the physicochemical properties of the drug, the target tissue, skin wounding, and cost when evaluating the drugs and conditions that will most benefit from this promising new drug delivery system.
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Affiliation(s)
- Bradley S Bloom
- Ronald O. Perelman Department of Dermatology, School of Medicine, New York University, New York, New York 10016, USA.
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135
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Dionísio M, Grenha A. Locust bean gum: Exploring its potential for biopharmaceutical applications. J Pharm Bioallied Sci 2012; 4:175-85. [PMID: 22923958 PMCID: PMC3425165 DOI: 10.4103/0975-7406.99013] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 03/21/2012] [Accepted: 04/24/2012] [Indexed: 12/21/2022] Open
Abstract
Polysaccharides have been finding, in the last decades, very interesting and useful applications in the biomedical and, specifically, in the biopharmaceutical field. Locust bean gum is a polysaccharide belonging to the group of galactomannans, being extracted from the seeds of the carob tree (Ceratonia siliqua). This polymer displays a number of appealing characteristics for biopharmaceutical applications, among which its high gelling capacity should be highlighted. In this review, we describe critical aspects of locust bean gum, contributing for its role in biopharmaceutical applications. Physicochemical properties, as well as strong and effective synergies with other biomaterials are described. The potential for in vivo biodegradation is explored and the specific biopharmaceutical applications are discussed.
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Affiliation(s)
- Marita Dionísio
- CBME - Centre for Molecular and Structural Biomedicine/IBB - Institute for Biotechnology and Bioengineering, Faculty of Sciences and Technology, University of Algarve, Campus de Gambelas, Faro, Portugal
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136
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Manconi M, Caddeo C, Sinico C, Valenti D, Mostallino MC, Lampis S, Monduzzi M, Fadda AM. Penetration enhancer-containing vesicles: composition dependence of structural features and skin penetration ability. Eur J Pharm Biopharm 2012; 82:352-9. [PMID: 22922162 DOI: 10.1016/j.ejpb.2012.06.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 06/10/2012] [Accepted: 06/25/2012] [Indexed: 11/28/2022]
Abstract
In this work, we focused on how composition and preparation method of vesicles might affect their morphological features and delivery performances. Penetration Enhancer-containing Vesicles, PEVs, vesicles containing a water miscible penetration enhancer (Transcutol® P; 10%, 20%, 30% v/v) and encapsulating diclofenac sodium, were formulated and compared with conventional liposomes. A cheap and unpurified commercial mixture of phospholipids, fatty acids, and triglycerides (Phospholipon® 50) was used, and the effects of this heterogeneous composition (along with the presence or absence of transcutol and the production method) on vesicle morphology, size, surface charge, drug loading, and stability were investigated. The variations in vesicle structure, bilayer thickness, and number of lamellae were assessed by TEM and Small and Wide Angle X-ray Scattering, which also proved the liquid state of the vesicular bilayer. Further, vesicles were evaluated for ex vivo (trans)dermal delivery, and their mode of action was studied performing a pre-treatment test and confocal laser scanning microscopy analyses. Results showed the formation of multi- and unilamellar vesicles that provided improved diclofenac delivery to pig skin, influenced by vesicle lipid composition and structure. Images of the qualitative CLSM analyses support the conclusion that PEVs enhance drug transport by penetrating intact the stratum corneum, thanks to a synergic effect of vesicles and penetration enhancer.
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Affiliation(s)
- M Manconi
- Dept. Scienze della Vita e dell'Ambiente, Sezione Scienzedel Farmaco, University of Cagliari, CNBS, via Ospedale 72, Cagliari, Italy
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137
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Sezer AD, Cevher E. Topical drug delivery using chitosan nano- and microparticles. Expert Opin Drug Deliv 2012; 9:1129-46. [DOI: 10.1517/17425247.2012.702752] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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138
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Ishii N, Kobayashi T, Matsumiya K, Ryu M, Hirata Y, Matsumura Y, Suzuki YA. Transdermal administration of lactoferrin with sophorolipid1This article is part of a Special Issue entitled Lactoferrin and has undergone the Journal's usual peer review process. Biochem Cell Biol 2012; 90:504-12. [DOI: 10.1139/o11-065] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Lactoferrin (Lf), a multifunctional glycoprotein, is known to activate dermal fibroblasts. Enhancing percutaneous absorption without decreasing the activity of Lf is critical in making the dermal administration of Lf beneficial. Sophorolipid (SL), a glycolipid-type biosurfactant, is known to form assemblies that may elevate the efficiency of the transdermal delivery of active ingredients. Here, we investigated the role of SL in the transdermal absorption of bovine Lf (bLf) and the effect of SL on the bLf activity on dermal fibroblasts. Transdermal absorption of bLf through a model skin was enhanced by 1.3-fold to 1.7-fold when SL was added. The effects of SL on the bLf activities on dermal fibroblasts were examined by cell proliferation activities and by gene expression levels of elastic fiber components, collagen IV, and hyaluronan synthases, revealing that SL did not depress the effect of bLf to any extent. Instead, the tropoelastin gene expression was upregulated ∼60-fold by bLf alone, which was further increased to ∼160-fold by bLf and SL together, suggesting a significant synergism between bLf and SL. Protein levels of elastin, assessed by immunohistochemistry, correlated well with the results of gene expressions. These results indicate the feasibility of the transdermal administration of bLf with SL.
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Affiliation(s)
- Nanase Ishii
- Biochemical Laboratory, Saraya Co. Ltd., 24-12 Tamate, Kashiwara, Osaka 582-0028, Japan
| | - Toshihiro Kobayashi
- Biochemical Laboratory, Saraya Co. Ltd., 24-12 Tamate, Kashiwara, Osaka 582-0028, Japan
| | - Kentaro Matsumiya
- Laboratory of Quality Analysis and Assessment, Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Mizuyuki Ryu
- Biochemical Laboratory, Saraya Co. Ltd., 24-12 Tamate, Kashiwara, Osaka 582-0028, Japan
| | - Yoshihiko Hirata
- Biochemical Laboratory, Saraya Co. Ltd., 24-12 Tamate, Kashiwara, Osaka 582-0028, Japan
| | - Yasuki Matsumura
- Laboratory of Quality Analysis and Assessment, Division of Agronomy and Horticultural Science, Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Yasushi A. Suzuki
- Biochemical Laboratory, Saraya Co. Ltd., 24-12 Tamate, Kashiwara, Osaka 582-0028, Japan
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139
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Bhatia A, Singh B, Raza K, Shukla A, Amarji B, Katare OP. Tamoxifen-loaded novel liposomal formulations: evaluation of anticancer activity on DMBA-TPA induced mouse skin carcinogenesis. J Drug Target 2012; 20:544-50. [DOI: 10.3109/1061186x.2012.694887] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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140
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Novel methods and devices to enhance transdermal drug delivery: the importance of laser radiation in transdermal drug delivery. Ther Deliv 2012; 3:373-88. [DOI: 10.4155/tde.12.10] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Skin permeation-enhancement technology is a rapidly developing field, which could significantly increase the number of drugs suitable for transdermal delivery. In this review, we highlight recent advances in both ‘passive’ and ‘active’ transdermal drug-delivery technologies, as well as in the laser ablation method. This paper concludes with a brief forward-looking perspective discussing what can be expected as laser technology continues to develop in the coming years.
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141
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Manosroi A, Chutoprapat R, Abe M, Manosroi W, Manosroi J. Transdermal absorption enhancement of rice bran bioactive compounds entrapped in niosomes. AAPS PharmSciTech 2012; 13:323-35. [PMID: 22258804 PMCID: PMC3299446 DOI: 10.1208/s12249-012-9751-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 01/04/2012] [Indexed: 11/30/2022] Open
Abstract
Niosomes composed of Tween 61 and cholesterol at 1:1 molar ratio were entrapped with the mixture of the three semi-purified rice (Oryza sativa L., Family Gramineae) bran bioactive compounds [ferulic acid (F), γ-oryzanol (O), and phytic acid (P)] at 0.5%, 1.5%, and 1.5%, respectively, by the supercritical CO(2) technique. The transdermal absorption by vertical Franz diffusion cells of the compounds entrapped in niosomes (Nio FOP), the unentrapped compounds (Mixed FOP), the compounds incorporated in gel and cream (Gel FOP and Cream FOP), and the compounds entrapped in niosomes and incorporated in gel and cream (Gel nio and Cream nio) was investigated. At 6 h, F and P from Nio FOP gave lower cumulative amount in viable epidermis and dermis (VED) than from Mixed FOP of 1.1 and 1.6 times, respectively, while O from Nio FOP exhibited higher cumulative amount in VED than from Mixed FOP of 2.4 times. The highest cumulative amount in VED of F, O, and P were from Gel nio, Cream nio, and Mixed FOP at 1.564 ± 0.052, 15.972 ± 0.273, and 25.857 ± 0.025 ng/cm(2), respectively. Niosomes enhanced the transdermal absorption of the hydrophobic compound O, while retarded the hydrophilic compounds F and P indicating the less systemic risk of F and P than O when entrapped in niosomes. Thus, transdermal absorption of F, O, and P appeared to depend on niosomal size, lipophilicity of the bioactive compounds, and types of formulations. These preclinical results can be applied for the design of the clinical study of the developed rice bran niosomal topical products.
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Affiliation(s)
- Aranya Manosroi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Thailand.
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142
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The enhancement of transdermal permeability of water soluble drug by niosome-emulgel combination. J Drug Deliv Sci Technol 2012. [DOI: 10.1016/s1773-2247(12)50059-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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143
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New formulations of local anaesthetics-part I. Anesthesiol Res Pract 2011; 2012:546409. [PMID: 22190922 PMCID: PMC3235423 DOI: 10.1155/2012/546409] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 09/14/2011] [Accepted: 09/14/2011] [Indexed: 01/29/2023] Open
Abstract
Part 1 comments on the types of local anaesthetics (LAs); it provides a better understanding of the mechanisms of action of LAs, and their pharmacokinetics and toxicity. It reviews the newer LAs such as levobupivacaine, ropivacaine, and articaine, and examines the newer structurally different LAs. The addition of adjuvants such as adrenaline, bicarbonate, clonidine, and corticosteroids is explored. Comment is made on the delivery of topical LAs via bioadhesive plasters and gels and controlled-release local anaesthetic matrices. Encapulation matrices such as liposomes, microemulsions, microspheres and nanospheres, hydrogels and liquid polymers are discussed as well. New innovations pertaining to LA formulations have indeed led to prolonged action and to novel delivery approaches.
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144
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González-Paredes A, Clarés-Naveros B, Ruiz-Martínez MA, Durbán-Fornieles JJ, Ramos-Cormenzana A, Monteoliva-Sánchez M. Delivery systems for natural antioxidant compounds: Archaeosomes and archaeosomal hydrogels characterization and release study. Int J Pharm 2011; 421:321-31. [DOI: 10.1016/j.ijpharm.2011.09.042] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 09/22/2011] [Accepted: 09/27/2011] [Indexed: 11/25/2022]
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145
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In vitro study of ethosome penetration in human skin and hypertrophic scar tissue. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2011; 8:1026-33. [PMID: 22033085 DOI: 10.1016/j.nano.2011.10.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 08/30/2011] [Accepted: 10/09/2011] [Indexed: 10/15/2022]
Abstract
The purpose of this study is to characterize a novel transdermal delivery carrier, ethosomes containing 5-fluorouracil. The delivery of drugs from ethosomes in human hypertrophic scar (HS) and the mechanisms of action of ethosomes in human HS were investigated. Percutaneous ethosome permeation was evaluated in vitro in human HS and skin using a Franz's cell. The amount of 5-fluorouracil that permeated HS and skin after 24 hours was most abundant in ethosomes via HS (E-Scar), followed by hydroethanolic solution via HS (H-Scar), ethosomes via skin (E-Skin), and hydroethanolic solution via skin (H-Skin). The penetration of ethosomes in HS and skin was analyzed by ethosomes fluorescently labeled with rhodamine 6GO using confocal laser scanning microscopy. The fluorescence intensity after application for 24 hours was highest in E-Scar, followed by E-Skin, H-Scar, and H-Skin, which indicates the penetration of ethosomes in HS was greatest. In conclusion, we consider that ethosomes are a highly efficient carrier in HS.
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146
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Vladescu I, Lieleg O, Jang S, Ribbeck K. An adsorption chromatography assay to probe bulk particle transport through hydrogels. J Pharm Sci 2011; 101:436-42. [PMID: 21905030 DOI: 10.1002/jps.22737] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 06/17/2011] [Accepted: 08/03/2011] [Indexed: 12/24/2022]
Abstract
Biopolymer-based hydrogels such as mucus and the basal lamina play a key role in biology, where they control the exchange of material between different compartments. They also pose a barrier that needs to be overcome for successful drug delivery. Characterizing the permeability properties of such hydrogels is mandatory for the development of suitable drug delivery vectors and pharmaceutics. Here, we present an experimental method to measure bulk particle transport through hydrogels. We validate our assay by applying it to mucin hydrogels and show that the permeability properties of these mucin hydrogels can be modulated by polymer density and pH, in agreement with previous results obtained from single particle tracking. The method we present here is easy to handle, inexpensive, and high-throughput compatible. It is also a suitable platform for the design and screening of drugs that aim at modifying the barrier properties of hydrogels. This system can also aid in the characterization and development of synthetic gels for a range of biomedical applications.
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Affiliation(s)
- I Vladescu
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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147
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Liposomal systems as drug delivery vehicles for dermal and transdermal applications. Arch Dermatol Res 2011; 303:607-21. [DOI: 10.1007/s00403-011-1166-4] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 07/04/2011] [Accepted: 07/12/2011] [Indexed: 11/30/2022]
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148
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Geusens B, Strobbe T, Bracke S, Dynoodt P, Sanders N, Gele MV, Lambert J. Lipid-mediated gene delivery to the skin. Eur J Pharm Sci 2011; 43:199-211. [DOI: 10.1016/j.ejps.2011.04.003] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2010] [Revised: 11/16/2010] [Accepted: 04/09/2011] [Indexed: 11/29/2022]
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149
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Severino P, Moraes LF, Zanchetta B, Souto EB, Santana MHA. Elastic liposomes containing benzophenone-3 for sun protection factor enhancement. Pharm Dev Technol 2011; 17:661-5. [PMID: 21563987 DOI: 10.3109/10837450.2011.580762] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This work was focused on the loading of benzophenone-3 in elastic liposomes composed of egg phosphatidylcholine and cholesterol, prepared by the Bangham method. Samples were characterized in terms of particle size, polydispersity index (PI), zeta potential, encapsulation efficiency and in vitro photoprotection properties. The extrusion of liposomes loading benzophenone-3 produced reduced-size (100 nm) elastic liposomes with a PI of 0.2. The active was loaded with a concentration of 20.34% (m/m) revealing changes in the ultraviolet properties after loading. On the basis of these results, it can be anticipated that liposomes are able to improve sun protector factor in vitro compared the free active.
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Affiliation(s)
- Patrícia Severino
- Department of Biotechnological Processes, School of Chemical Engineering, State University of Campinas (UNICAMP), Campinas, Brazil
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150
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González-Rodríguez ML, Rabasco AM. Charged liposomes as carriers to enhance the permeation through the skin. Expert Opin Drug Deliv 2011; 8:857-71. [DOI: 10.1517/17425247.2011.574610] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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