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Cintra AB, Delboni LA, Lara MG. Influence of additives on swelling and mucoadhesion properties of glyceryl monooleate liquid crystals. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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2
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Silvestrini AVP, Caron AL, Viegas J, Praça FG, Bentley MVLB. Advances in lyotropic liquid crystal systems for skin drug delivery. Expert Opin Drug Deliv 2020; 17:1781-1805. [DOI: 10.1080/17425247.2020.1819979] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Angelo Luis Caron
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Juliana Viegas
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil
| | - Fabíola Garcia Praça
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil
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3
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Enzyme encapsulation in nanostructured self-assembled structures: Toward biofunctional supramolecular assemblies. Curr Opin Colloid Interface Sci 2019. [DOI: 10.1016/j.cocis.2019.09.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Gilbert J, Valldeperas M, Dhayal SK, Barauskas J, Dicko C, Nylander T. Immobilisation of β-galactosidase within a lipid sponge phase: structure, stability and kinetics characterisation. NANOSCALE 2019; 11:21291-21301. [PMID: 31667477 DOI: 10.1039/c9nr06675f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the formulation of an active enzyme enclosed in a matrix for controlled delivery, it is a challenge to achieve a high protein load and to ensure high activity of the protein. For the first time to our knowledge, we report the use of a highly swollen lipid sponge (L3) phase for encapsulation of the large active enzyme, β-galactosidase (β-gal, 238 kDa). This enzyme has large relevance for applications in, e.g. the production of lactose free milk products. The formulation consisted of diglycerol monooleate (DGMO), and a mixture of mono-, di- and triglycerides (Capmul GMO-50) stabilised by polysorbate 80 (P80). The advantage of this type of matrix is that it can be produced on a large scale with a fairly simple and mild process as the system is in practice self-dispersing, yet it has a well-defined internal nano-structure. Minor effects on the sponge phase structure due to the inclusion of the enzyme were observed using small angle X-ray scattering (SAXS). The effect of encapsulation on the enzymatic activity and kinetic characteristics of β-galactosidase activity was also investigated and can be related to the enzyme stability and confinement within the lipid matrix. The encapsulated β-galactosidase maintained its activity for a significantly longer time when compared to the free solution at the same temperature. Differences in the particle size and charge of sponge-like nanoparticles (L3-NPs) with and without the enzyme were analysed by dynamic light scattering (DLS) and zeta-potential measurements. Moreover, all the initial β-galactosidase was encapsulated within L3-NPs as revealed by size exclusion chromatography.
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Affiliation(s)
- Jennifer Gilbert
- Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden. and Department of Chemistry, University of Southampton, University Road, Southampton SO17 1BJ, UK
| | - Maria Valldeperas
- Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden. and NanoLund, Lund University, P.O. Box 118, SE-22100 Lund, Sweden
| | | | - Justas Barauskas
- Camurus AB, Ideon Science Park, Gamma Building, Sölvegatan 41, SE-22379 Lund, Sweden
| | - Cedric Dicko
- Pure and Applied Biochemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden
| | - Tommy Nylander
- Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-22100 Lund, Sweden. and NanoLund, Lund University, P.O. Box 118, SE-22100 Lund, Sweden and LINXS - Lund Institute of Advanced Neutron and X-ray Science, Scheelevägen, 1922370 Lund, Sweden
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5
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Current potential and challenges in the advances of liquid crystalline nanoparticles as drug delivery systems. Drug Discov Today 2019; 24:1405-1412. [DOI: 10.1016/j.drudis.2019.05.004] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/16/2019] [Accepted: 05/09/2019] [Indexed: 12/20/2022]
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6
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Talaikis M, Valldeperas M, Matulaitienė I, Borzova JL, Barauskas J, Niaura G, Nylander T. On the Molecular Interactions in Lipid Bilayer-Water Assemblies of Different Curvatures. J Phys Chem B 2019; 123:2662-2672. [PMID: 30785750 DOI: 10.1021/acs.jpcb.8b11387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work concerns the importance of intermolecular interactions present in aqueous lipid assembly systems depending on the type of aggregates they form. We have studied aqueous mixtures of diglycerol monooleate, Capmul glycerol monoleate (GMO-50) and polyoxyethylene (20) sorbitan monooleate (Polysorbate 80, P80) using small-angle X-ray scattering (SAXS) measurements to reveal the structure of liquid crystalline phases. On the basis of the SAXS data, a phase diagram was constructed. We discuss the effect of curvature changes of the lipid-aqueous interface obtained by changing the water content and the temperature. The results are related to the intermolecular interactions, as revealed by Raman spectroscopy, with a focus on the bilayer type of system of different curvature and bilayer flexibility, namely, the lamellar phase, bicontinuous cubic phase, and sponge phase. All phases show large similarities in their chain conformation and head group interactions as revealed by the Raman spectra, arising from the fact that all three structures are formed by lipid bilayers. However, subtle differences in the molecular organization of the sponge phase were revealed by employing Raman difference spectroscopy and by analysis of key spectroscopic indicators, which show a less dense hydrocarbon chain packing compared to the inverse bicontinuous cubic or lamellar phase.
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Affiliation(s)
- Martynas Talaikis
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center , Vilnius University , Sauletekio av. 7 , LT-10257 Vilnius , Lithuania
| | | | - Ieva Matulaitienė
- Department of Organic Chemistry , Center for Physical Sciences and Technology , Sauletekio av. 3 , LT-10257 Vilnius , Lithuania
| | - Jekaterina Latynis Borzova
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center , Vilnius University , Sauletekio av. 7 , LT-10257 Vilnius , Lithuania
| | - Justas Barauskas
- Camurus AB , Ideon Science Park, Gamma Building, Sölvegatan 41 , SE-22379 Lund , Sweden
| | - Gediminas Niaura
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center , Vilnius University , Sauletekio av. 7 , LT-10257 Vilnius , Lithuania
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7
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Liquid Crystalline Systems Based on Glyceryl Monooleate and Penetration Enhancers for Skin Delivery of Celecoxib: Characterization, In Vitro Drug Release, and In Vivo Studies. J Pharm Sci 2018; 107:870-878. [DOI: 10.1016/j.xphs.2017.10.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/15/2017] [Accepted: 10/27/2017] [Indexed: 11/21/2022]
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8
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Macedo CG, Jain AK, Franz-Montan M, Napimoga MH, Clemente-Napimoga JT, Gill HS. Microneedles enhance topical delivery of 15-deoxy-Δ 12,14-prostaglandin J 2 and reduce nociception in temporomandibular joint of rats. J Control Release 2017; 265:22-29. [PMID: 28673836 DOI: 10.1016/j.jconrel.2017.06.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/23/2017] [Accepted: 06/28/2017] [Indexed: 10/19/2022]
Abstract
The pain arising from temporomandibular disorders is often treated with opioids and agents that inhibit the immune response and are associated with substantial adverse effects and long-term risks. Thus, the development of new therapies that are safer and more effective is of great interest to patients and clinicians. 15-deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) is naturally produced in the human body and has anti-inflammatory properties. We have previously shown in a rat temporomandibular joint (TMJ) model that injection of 15d-PGJ2 into the rat TMJ can provide antinociceptive relief against a subsequent noxious challenge from formalin injection into the same TMJ. However, intra-TMJ injections are painful. Thus, to make the treatment patient friendly, this study aimed to evaluate whether the antinociceptive property of 15d-PGJ2 cream can be enhanced with microneedles (MNs). We found that topical application of 15d-PGJ2 cream for 15min directly on the rat TMJ skin did not induce any significant antinociceptive effect. However, if MNs were inserted in the skin for 5min, removed, and then 15d-PGJ2 cream was applied, a significant reduction in formalin-induced nociceptive behavior was observed. This reduction in nociception was comparable to an intra-TMJ injection of 15d-PGJ2. A concentration-dependent effect of 15d-PGJ2 was observed, with higher concentrations of 15d-PGJ2 in the cream showing a more durable effect up to 8h. 15d-PGJ2 cream associated with MNs also significantly reduced the release of tumor necrosis factor-α and interleukin-1 beta, which are pro-inflammatory cytokines. Our findings suggest that 15d-PGJ2 cream associated with MNs provides antinociceptive and anti-inflammatory effect, and can offer a potential patient-friendly therapeutic option for pain control related to inflammatory disorders of the TMJ.
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Affiliation(s)
- Cristina G Macedo
- Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Amit K Jain
- Department of Chemical Engineering, Texas Tech University, Lubbock, TX, USA
| | | | - Marcelo H Napimoga
- Laboratory of Immunology and Molecular Biology, São Leopoldo Mandic Institute and Research Center, Campinas, SP, Brazil
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Adrien V, Rayan G, Reffay M, Porcar L, Maldonado A, Ducruix A, Urbach W, Taulier N. Characterization of a Biomimetic Mesophase Composed of Nonionic Surfactants and an Aqueous Solvent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10268-10275. [PMID: 27618561 DOI: 10.1021/acs.langmuir.6b02744] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We have investigated the physical and biomimetic properties of a sponge (L3) phase composed of pentaethylene glycol monododecyl ether (C12E5), a nonionic surfactant, an aqueous solvent, and a cosurfactant. The following cosurfactants, commonly used for solubilizing membrane proteins, were incorporated: n-octyl-β-d-glucopyranoside (β-OG), n-dodecyl-β-d-maltopyranoside (DDM), 4-cyclohexyl-1-butyl-β-d-maltoside (CYMAL-4), and 5-cyclohexyl-1-pentyl-β-d-maltoside (CYMAL-5). Partial phase diagrams of these systems were created. The L3 phase was characterized using crossed polarizers, diffusion of a fluorescent probe by fluorescence recovery after pattern photobleaching (FRAPP), and freeze fracture electron microscopy (FFEM). By varying the hydration of the phase, we were able to tune the distance between adjacent bilayers. The characteristic distance (db) of the phase was obtained from small angle scattering (SAXS/SANS) as well as from FFEM, which yielded complementary db values. These db values were neither affected by the nature of the cosurfactant nor by the addition of membrane proteins. These findings illustrate that a biomimetic surfactant sponge phase can be created in the presence of several common membrane protein-solubilizing detergents, thus making it a versatile medium for membrane protein studies.
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Affiliation(s)
- V Adrien
- Laboratoire de Physique Statistique, Ecole Normale Supérieure, PSL Research University; Université Paris Diderot Sorbonne Paris Cité; Sorbonne Universités UPMC Univ Paris 06, CNRS, 24 rue Lhomond, 75005 Paris, France
- Univ Paris Descartes, Sorbonne Paris Cité. Laboratoire de Cristallographie et RMN Biologiques, CNRS UMR 8015, Paris, France
| | - G Rayan
- Laboratoire de Physique Statistique, Ecole Normale Supérieure, PSL Research University; Université Paris Diderot Sorbonne Paris Cité; Sorbonne Universités UPMC Univ Paris 06, CNRS, 24 rue Lhomond, 75005 Paris, France
| | - M Reffay
- Laboratoire de Physique Statistique, Ecole Normale Supérieure, PSL Research University; Université Paris Diderot Sorbonne Paris Cité; Sorbonne Universités UPMC Univ Paris 06, CNRS, 24 rue Lhomond, 75005 Paris, France
| | - L Porcar
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - A Maldonado
- Departamento de Física, Universidad de Sonora , Apdo Postal 1626, 83000 Hermosillo, Sonora Mexico
| | - A Ducruix
- Univ Paris Descartes, Sorbonne Paris Cité. Laboratoire de Cristallographie et RMN Biologiques, CNRS UMR 8015, Paris, France
| | - W Urbach
- Laboratoire de Physique Statistique, Ecole Normale Supérieure, PSL Research University; Université Paris Diderot Sorbonne Paris Cité; Sorbonne Universités UPMC Univ Paris 06, CNRS, 24 rue Lhomond, 75005 Paris, France
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - N Taulier
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, INSERM, Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
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10
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Fong WK, Negrini R, Vallooran JJ, Mezzenga R, Boyd BJ. Responsive self-assembled nanostructured lipid systems for drug delivery and diagnostics. J Colloid Interface Sci 2016; 484:320-339. [PMID: 27623190 DOI: 10.1016/j.jcis.2016.08.077] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/27/2016] [Accepted: 08/30/2016] [Indexed: 01/19/2023]
Abstract
While stimuli-responsive polymers have received a huge amount of attention in the literature, responsive lipid-based mesophase systems offer unique opportunities in biomedical applications such as drug delivery and biosensing. The different mesophase equilibrium structures enables dynamic switching between nanostructures to facilitate drug release or as a transducer for recognition events. In drug delivery, this behavior offers researchers the means to deliver a therapeutic payload at a specific rate and time i.e. 'on-demand'. This review summarizes the distinctive features of these multifaceted materials and aggregates the current state of the art research from our groups and others into the use of these materials as bulk gels and nanostructured dispersions for drug delivery, biosensing and diagnostics.
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Affiliation(s)
- Wye-Khay Fong
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland; Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Renata Negrini
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland
| | - Jijo J Vallooran
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Food and Soft Materials Science, Department of Health Science and Technology, ETH Zurich, Schmelzbergstrasse 9, CH-8092 Zurich, Switzerland.
| | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.
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Valldeperas M, Wiśniewska M, Ram-On M, Kesselman E, Danino D, Nylander T, Barauskas J. Sponge Phases and Nanoparticle Dispersions in Aqueous Mixtures of Mono- and Diglycerides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8650-8659. [PMID: 27482838 DOI: 10.1021/acs.langmuir.6b01356] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The lipid liquid crystalline sponge phase (L3) has the advantages that it is a nanoscopically bicontinuous bilayer network able to accommodate large amounts of water and it is easy to manipulate due to its fluidity. This paper reports on the detailed characterization of L3 phases with water channels large enough to encapsulate bioactive macromolecules such as proteins. The aqueous phase behavior of a novel lipid mixture system, consisting of diglycerol monooleate (DGMO), and a mixture of mono-, di- and triglycerides (Capmul GMO-50) was studied. In addition, sponge-like nanoparticles (NPs) stabilized by Polysorbate 80 (P80) were prepared based on the DGMO/GMO-50 system, and their structure was correlated with the phase behavior of the corresponding bulk system. These NPs were characterized by dynamic light scattering (DLS), cryo-transmission electron microscopy (Cryo-TEM) and small angle X-ray scattering (SAXS) to determine their size, shape, and inner structure as a function of the DGMO/GMO-50 ratio. In addition, the effect of P80 as stabilizer was investigated. We found that the NPs have aqueous pores with diameters up to 13 nm, similar to the ones in the bulk phase.
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Affiliation(s)
- Maria Valldeperas
- Department of Physical Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden
| | - Małgorzata Wiśniewska
- Biomedical Science, Faculty of Health and Society, Malmö University , P.O. Box 124, SE-20506 Malmö, Sweden
- Department of Chemistry, University of Bergen , P.O. Box 7803, 5020 Bergen, Norway
| | | | | | | | - Tommy Nylander
- Department of Physical Chemistry, Lund University , P.O. Box 124, SE-22100 Lund, Sweden
- NanoLund, Lund University , P.O. Box 118, SE-22100 Lund, Sweden
| | - Justas Barauskas
- Biomedical Science, Faculty of Health and Society, Malmö University , P.O. Box 124, SE-20506 Malmö, Sweden
- Camurus AB, Ideon Science Park, Gamma Building, Sölvegatan 41, SE-22379 Lund, Sweden
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Thunshelle C, Yin R, Chen Q, Hamblin MR. Current Advances in 5-Aminolevulinic Acid Mediated Photodynamic Therapy. CURRENT DERMATOLOGY REPORTS 2016; 5:179-190. [PMID: 28163981 DOI: 10.1007/s13671-016-0154-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Kennedy and Pottier discovered that photodynamic therapy (PDT) could be carried out using a procedure consisting of topical application of the porphyrin-precursor, 5-aminolevulinic acid (ALA) to the skin, followed after some time by illumination with various light parameters in the 1980s. Since then, ALA-PDT has expanded enormously and now covers most aspects of dermatological disease. The purpose of this review is to discuss a range of ingenious strategies that investigators have devised for improving the overall outcome (higher efficiency and lower side effects) of ALA-PDT. The big advance of using ALA esters instead of the free acid to improve skin penetration was conceived in the 1990s. A variety of more recent innovative approaches can be divided into three broad groups: (a) those relying on improving delivery or penetration of ALA into the skin; (b) those relying on ways to increase the synthesis of protoporphyrin IX inside the skin; (c) those relying on modification of the illumination parameters. In the first group, we have improved delivery of ALA with penetration-enhancing chemicals, iontophoresis, intracutaneous injection, or fractionated laser. There is also a large group of nanotechnology-related approaches with ALA being delivered using liposomes/ethosomes, ALA dendrimers, niosomes, mesoporous silica nanoparticles, conjugated gold nanoparticles, polymer nanoparticles, fullerene nanoparticles, and carbon nanotubes. In the second group, we can find the use of cellular differentiating agents, the use of iron chelators, and the effect of increasing the temperature. In the third group, we find methods designed to reduce pain as well as improve efficiency including fractionated light, daylight PDT, and wearable light sources for ambulatory PDT. This active area of research is expected to continue to provide a range of intriguing possibilities.
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Affiliation(s)
- Connor Thunshelle
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Harvard College, Cambridge, MA 02138, USA
| | - Rui Yin
- Southwest Hospital, Third Military Medical University, Chongqing 40038, China
| | - Qiquan Chen
- Southwest Hospital, Third Military Medical University, Chongqing 40038, China
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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14
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Rayan G, Adrien V, Reffay M, Picard M, Ducruix A, Schmutz M, Urbach W, Taulier N. Surfactant bilayers maintain transmembrane protein activity. Biophys J 2015; 107:1129-1135. [PMID: 25185548 DOI: 10.1016/j.bpj.2014.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 06/21/2014] [Accepted: 07/07/2014] [Indexed: 11/26/2022] Open
Abstract
In vitro studies of membrane proteins are of interest only if their structure and function are significantly preserved. One approach is to insert them into the lipid bilayers of highly viscous cubic phases rendering the insertion and manipulation of proteins difficult. Less viscous lipid sponge phases are sometimes used, but their relatively narrow domain of existence can be easily disrupted by protein insertion. We present here a sponge phase consisting of nonionic surfactant bilayers. Its extended domain of existence and its low viscosity allow easy insertion and manipulation of membrane proteins. We show for the first time, to our knowledge, that transmembrane proteins, such as bacteriorhodopsin, sarcoplasmic reticulum Ca(2+)ATPase (SERCA1a), and its associated enzymes, are fully active in a surfactant phase.
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Affiliation(s)
- Gamal Rayan
- Laboratoire de Physique Statistique de l'École Normale Supérieure, UPMC, Université Paris Diderot, CNRS, UMR 8550, Paris, France
| | - Vladimir Adrien
- Laboratoire de Physique Statistique de l'École Normale Supérieure, UPMC, Université Paris Diderot, CNRS, UMR 8550, Paris, France; Laboratoire de Cristallographie et RMN Biologiques, Université Paris Descartes, CNRS, UMR 8015, Paris, France
| | - Myriam Reffay
- Laboratoire de Physique Statistique de l'École Normale Supérieure, UPMC, Université Paris Diderot, CNRS, UMR 8550, Paris, France
| | - Martin Picard
- Laboratoire de Cristallographie et RMN Biologiques, Université Paris Descartes, CNRS, UMR 8015, Paris, France
| | - Arnaud Ducruix
- Laboratoire de Cristallographie et RMN Biologiques, Université Paris Descartes, CNRS, UMR 8015, Paris, France
| | - Marc Schmutz
- Institut Charles Sadron - UPR 022 - CNRS - Unistra, Strasbourg, France
| | - Wladimir Urbach
- Laboratoire de Physique Statistique de l'École Normale Supérieure, UPMC, Université Paris Diderot, CNRS, UMR 8550, Paris, France; Sorbonnes Université Univ Paris 6, UMR 7371, UMR_S 1146, Laboratoire d'Imagerie Biomédicale, Paris, France; CNRS, UMR 7371, Laboratoire d'Imagerie Biomédicale, Paris, France; INSERM, UMR_S 1146, Laboratoire d'Imagerie Biomédicale, Paris, France
| | - Nicolas Taulier
- Sorbonnes Université Univ Paris 6, UMR 7371, UMR_S 1146, Laboratoire d'Imagerie Biomédicale, Paris, France; CNRS, UMR 7371, Laboratoire d'Imagerie Biomédicale, Paris, France; INSERM, UMR_S 1146, Laboratoire d'Imagerie Biomédicale, Paris, France.
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15
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Dou Y, Dong S, Hao J. Magnetic-field-induced orientational phase structure transition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:1266-1271. [PMID: 24447257 DOI: 10.1021/la4047929] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Magnetic field effect on the phase transition at high temperature (from 50 °C) inside the magnetic field has been found in C14G2 (N-tetradecyllactobionamide)/C12EO4 (tetraethylene glycol monododecyl ether)/D2O system. The phase was transited quickly from lamellar phase to isotropic phases [bottom, micellar phase (L1 phase) and top, sponge phase (L3 phase)] induced by a magnetic field, which was demonstrated by (2)H NMR and FF-TEM measurements. The isotropic phases induced by magnetic field were not stable, and the upper L3 phase can recover to lamellar phase after being restored in a 55 °C thermostat outside the magnetic field for about one month. During the mechanism study, the C12EO4 molecule was proved to be the dominant component for the phase transition induced by the magnetic field, while the C14G2 molecule was the auxiliary and just affected the transition speed. The breaking and rebuilding of hydrogen bonds could play an important role in the phase transition and recovering. Moreover, the surfactant concentration had an effect on the speed of phase transiting and phase recovering. These observations could provide an understanding of the phase transition and also the applications for the controlled drug delivery system of bilayer membranes driving, induced by the magnetic field.
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Affiliation(s)
- Yingying Dou
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials (Shandong University) , Ministry of Education, Jinan 250100, People's Republic of China
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Shi L, Wang X, Zhao F, Luan H, Tu Q, Huang Z, Wang H, Wang H. In vitro evaluation of 5-aminolevulinic acid (ALA) loaded PLGA nanoparticles. Int J Nanomedicine 2013; 8:2669-76. [PMID: 23926429 PMCID: PMC3728265 DOI: 10.2147/ijn.s45821] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background 5-Aminolevulinic acid (ALA) is a prodrug for topical photodynamic therapy. The effectiveness of topical ALA can be limited by its bioavailability. The aim of this study was to develop a novel ALA delivery approach using poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NPs). Methods A modified double emulsion solvent evaporation method was used to prepare ALA loaded PLGA NPs (ALA PLGA NPs). The characteristics, uptake, protoporphyrin IX fluorescence kinetics, and cytotoxicity of ALA PLGA NPs toward a human skin squamous cell carcinoma cell line were examined. Results The mean particle size of spherical ALA PLGA NPs was 65.6 nm ± 26 nm with a polydispersity index of 0.62. The encapsulation efficiency was 65.8% ± 7.2% and ALA loading capacity was 0.62% ± 0.27%. When ALA was dispersed in PLGA NPs, it turned into an amorphous phase. ALA PLGA NPs could be taken up by squamous cell carcinoma cells and localized in the cytoplasm. The protoporphyrin IX fluorescence kinetics and 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay showed that ALA PLGA NPs were more effective than free ALA of the same concentration. Conclusion PLGA NPs provide a promising ALA delivery strategy for topical ALA-photodynamic therapy of skin squamous cell carcinoma.
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Affiliation(s)
- Lei Shi
- Shanghai Skin Disease Hospital, Shanghai, People's Republic of China
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Lapteva M, Kalia YN. Microstructured bicontinuous phase formulations: their characterization and application in dermal and transdermal drug delivery. Expert Opin Drug Deliv 2013; 10:1043-59. [DOI: 10.1517/17425247.2013.783008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Kjellin M. Scientific Results and Economic Effects from the Centre for Surfactants Based on Natural Products (SNAP). TENSIDE SURFACT DET 2013. [DOI: 10.3139/113.110183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Abstract
This review article will give a broad overview of the synthesized and characterised surfactants within the competence centre SNAP (Centre for Surfactants Based on Natural Products). The surfactants differ within their hydrophilic groups, hydrophobic groups as well as the linkage between these groups. The main focus was put on sugar-based surfactants and surfactants containing polyhydroxyl groups so this part will be the most extensive in the review. Interactions between surfactants and polymers have also been investigated and will be described in the final part of the review. SNAP resulted in the publication of 239 scientific articles and 22 PhD degrees.
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Nanostructured self assembled lipid materials for drug delivery and tissue engineering. Ther Deliv 2012; 2:1485-516. [PMID: 22826876 DOI: 10.4155/tde.11.105] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Every living organism comprises of lipids as basic building blocks in addition to other components. Utilizing these lipids for pharmaceutical and biomedical applications can overcome biocompatibility and biodegradability issues. A well known example is liposomes (lipids arranged in lamellar structures), but other than that there are additional unique mesophasic structures of lipids formed as a result of lipid polymorphisms, which include cubic-, hexagonal- or sponge-phase structures. These structures provide the advantages of stability and production feasibility compared with liposomes. Cubosomes, which exist in a cubic structure, have improved stability, bioadhesivity and biocompatibility. Hexagonal phases or hexosomes exhibit hexagonal arrangements and can encapsulate different drugs with high stability. Lipids also forms tube-like structures known as tubules and ribbons that are also utilized in different biomedical applications, especially in tissue engineering. Immune stimulating complexes are nanocage-like structures formed as a result of interactions of lipid, antigen and Quillaja saponin. These lipidic mesophasic structures have been utilized for gene, vaccine and drug delivery. This article addresses lipid self-assembled supramolecular nanostructures, including cubosomes, hexosomes, tubules, ribbons, cochleates, lipoplexes and immune stimulating complexes and their biomedical applications.
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Abstract
INTRODUCTION Topical photodynamic therapy (PDT) refers to topical application of a photosensitizer onto the site of skin disease which is followed by illumination and results in death of selected cells. The main problem in topical PDT is insufficient penetration of the photosensitizer into the skin, which limits its use to superficial skin lesions. In order to overcome this problem, recent studies tested liposomes as delivery systems for photosensitizers. AREAS COVERED This paper reviews the use of different types of liposomes for encapsulating photosensitizers for topical PDT. Liposomes should enhance the photosensitizers' penetration into the skin, while decreasing its absorption into systemic circulation. Only few photosensitizers have currently been encapsulated in liposomes for topical PDT: 5-aminolevulinic acid (5-ALA), temoporfin (mTHPC) and methylene blue. EXPERT OPINION Investigated liposomes enhanced the skin penetration of 5-ALA and mTHPC, reduced their systemic absorption and reduced their cytotoxicity compared with free drugs. Their high tissue penetration should enable the treatment of deep and hyperkeratotic skin lesions, which is the main goal of using liposomes. However, liposomes still do not attract enough attention as drug carriers in topical PDT. In vivo studies of their therapeutic effectiveness are needed in order to obtain enough evidence for their potential clinical use as carriers for photosensitizers in topical PDT.
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Krishnan G, Grice JE, Roberts MS, Benson HAE, Prow TW. Enhanced sonophoretic delivery of 5-aminolevulinic acid: preliminary humanex vivopermeation data. Skin Res Technol 2012; 19:e283-9. [DOI: 10.1111/j.1600-0846.2012.00640.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Gayathri Krishnan
- Curtin Health Innovation Research Institute; School of Pharmacy; Curtin University; Perth; WA; Australia
| | - Jeffrey E. Grice
- Therapeutics Research Centre; School of Medicine; The University of Queensland; QLD; Australia
| | | | - Heather A. E. Benson
- Curtin Health Innovation Research Institute; School of Pharmacy; Curtin University; Perth; WA; Australia
| | - Tarl W. Prow
- Dermatology Research Centre; The University of Queensland, School of Medicine, Princess Alexandra Hospital; Brisbane; QLD; Australia
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Oh EK, Jin SE, Kim JK, Park JS, Park Y, Kim CK. Retained topical delivery of 5-aminolevulinic acid using cationic ultradeformable liposomes for photodynamic therapy. Eur J Pharm Sci 2011; 44:149-57. [PMID: 21782942 DOI: 10.1016/j.ejps.2011.07.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 06/10/2011] [Accepted: 07/05/2011] [Indexed: 11/30/2022]
Abstract
5-Aminolevulinic acid (5-ALA), inducing photodynamic protoporphyrin (PpIX), is a hydrophilic molecule, resulting in leashing the capacity to cross tissue barriers like stratum corneum (SC) of skin. Here, we aimed to develop 5-ALA loaded ultradeformable liposomes (UDL) with different surface charges, and to investigate their physicochemical characteristics and capability for the skin penetration and retention of 5-ALA for topical photodynamic therapy (PDT). The effects of surface charges of UDL on in vitro permeation of 5-ALA and in vivo accumulation of 5-ALA-induced PpIX in viable skin were determined and then compared with conventional neutral liposomes (nLiposome). All UDL showed smaller particle size and better deformability than nLiposome. However, entrapment efficiency of 5-ALA was similar to each vesicle. Among vesicles, the cationic UDL (cUDL) demonstrated higher stability and permeability, and could deliver 5-ALA into deep skin tissue by topical application. Moreover, the 5-ALA loaded in cUDL was long retained, and induced more amount of PpIX in viable skin than those in other UDL and nLiposome. Considering that the conversion of 5-ALA into PpIX occurs preferentially in epidermis, these results suggested that topical delivery of 5-ALA loaded in cUDL could be an interesting proposal to optimize PDT related to 5-ALA.
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Affiliation(s)
- Eun Kyung Oh
- College of Pharmacy, Seoul National University, Seoul, Republic of Korea
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Wachowska M, Muchowicz A, Firczuk M, Gabrysiak M, Winiarska M, Wańczyk M, Bojarczuk K, Golab J. Aminolevulinic Acid (ALA) as a Prodrug in Photodynamic Therapy of Cancer. Molecules 2011. [PMCID: PMC6263343 DOI: 10.3390/molecules16054140] [Citation(s) in RCA: 156] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Aminolevulinic acid (ALA) is an endogenous metabolite normally formed in the mitochondria from succinyl-CoA and glycine. Conjugation of eight ALA molecules yields protoporphyrin IX (PpIX) and finally leads to formation of heme. Conversion of PpIX to its downstream substrates requires the activity of a rate-limiting enzyme ferrochelatase. When ALA is administered externally the abundantly produced PpIX cannot be quickly converted to its final product - heme by ferrochelatase and therefore accumulates within cells. Since PpIX is a potent photosensitizer this metabolic pathway can be exploited in photodynamic therapy (PDT). This is an already approved therapeutic strategy making ALA one of the most successful prodrugs used in cancer treatment.
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Affiliation(s)
- Małgorzata Wachowska
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Angelika Muchowicz
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Małgorzata Firczuk
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Magdalena Gabrysiak
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Magdalena Winiarska
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Małgorzata Wańczyk
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Kamil Bojarczuk
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Centre of Biostructure Research, Medical University of Warsaw, Banacha 1A F Building, 02-097 Warsaw, Poland
- Department III, Institute of Physical Chemistry, Polish Academy of Sciences, 01-224 Warsaw, Poland
- Author to whom correspondence should be addressed; E-Mail: ; Tel. +48-22-5992199; Fax: +48-22-5992194
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Han IS, Kang MY, Kim MK, Kim JC. Enhancing Skin Delivery of 5-Aminolevulinic Acid with Transferosome Using Lyso-Phospholipid and Surfactant. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2011. [DOI: 10.4333/kps.2011.41.1.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hossain MK, Subedi RK, Chun MK, Kim EJ, Moon HS, Choi HK. Formulation and In vitro Evaluation of Transdermal Drug Delivery System for Galantamine. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2011. [DOI: 10.4333/kps.2011.41.1.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kulkarni CV, Wachter W, Iglesias-Salto G, Engelskirchen S, Ahualli S. Monoolein: a magic lipid? Phys Chem Chem Phys 2011; 13:3004-21. [DOI: 10.1039/c0cp01539c] [Citation(s) in RCA: 295] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Morrow DIJ, McCarron PA, Woolfson AD, Juzenas P, Juzeniene A, Iani V, Moan J, Donnelly RF. Novel patch-based systems for the localised delivery of ALA-esters. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2010; 101:59-69. [PMID: 20634088 DOI: 10.1016/j.jphotobiol.2010.06.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 06/06/2010] [Accepted: 06/21/2010] [Indexed: 10/19/2022]
Abstract
In photodynamic therapy (PDT) a combination of visible light and a sensitising drug causes the destruction of selected cells. Aminolaevulinic acid (ALA) has been widely used in topical PDT for over 15 years. However, ALA does not possess favourable physicochemical properties for skin penetration. Consequently, the clearance rates for difficult to treat lesions, such as nodular basal cell carcinomas are relatively low. For the first time, equimolar concentrations of ALA, methyl-ALA (m-ALA) and hexyl-ALA (h-ALA) have been incorporated into a bioadhesive patch-based system. In vitro penetration studies into excised porcine skin revealed that ALA patches containing relatively high loadings (226.7 micromol cm(-2)) were associated with significantly greater tissue concentrations (70.7 micromol cm(-3)) than patches containing m-ALA (16.3 micromol cm(-3)) or h-ALA (17.4 micromol cm(-3)). ALA was also found to be the most efficient inducer of protoporphyrin (PpIX) fluorescence in mice, in vivo (maximum mean fluorescence: ALA=236.2 a.u., m-ALA=175.1 a.u., h-ALA=193.5 a.u.). However, when the lipophilic hexylester was formulated in a pressure sensitive adhesive (PSA) patch, significantly higher PpIX levels were achieved compared to all bioadhesive systems tested. Of major importance, PSA patches containing relatively low h-ALA loadings induced high PpIX levels, which were localised to the application area. This study has highlighted the importance of rational selection of both the active agent and the delivery system. Bioadhesive preparations containing ALA are ideal for delivery to moist environments; whereas h-ALA-loaded PSA systems may facilitate enhanced delivery to dry areas of skin. In addition, owing to the relatively low loadings of h-ALA required in PSA patches, the costs of clinical PDT may potentially be reduced.
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Affiliation(s)
- Desmond I J Morrow
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
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Araújo LMPDC, Thomazine JA, Lopez RFV. Development of microemulsions to topically deliver 5-aminolevulinic acid in photodynamic therapy. Eur J Pharm Biopharm 2010; 75:48-55. [PMID: 20083197 DOI: 10.1016/j.ejpb.2010.01.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2009] [Revised: 01/06/2010] [Accepted: 01/13/2010] [Indexed: 10/20/2022]
Abstract
The aim of this study was to obtain and to characterize microemulsions containing 5-aminolevulinic acid (5-ALA) and to investigate the influence of these systems in drug skin permeation for further topical photodynamic therapy (PDT). 5-ALA was incorporated in water-in-oil (W/O), bicontinuous (Bc), and oil-in-water (O/W) microemulsions obtained by the titration of ethyl oleate and PEG-8 caprylic/capric glycerides:polyglyceryl-6 dioleate (3:1) mixtures with water. Selected systems were characterized by conductivity, viscosity, size of the droplets, and drug release. The stability of the drug in the microemulsions was also assessed. Moreover, the in vitro and in vivo skin permeation of 5-ALA was investigated using diffusion cells and confocal scanning laser microscopy (CSLM), respectively. Despite the fact that the O/W microemulsion decreased the 5-ALA diffusion coefficient and retarded the drug release, it also significantly increased the in vitro drug skin permeation when compared to other 5-ALA carriers. It was observed by CSLM that the red fluorescence of the skin increased homogeneously in the deeper skin layers when the 5-ALA microemulsion was applied in vivo, probably due to the formation of the photoactive protoporphyrin IX. The microemulsion developed carried 5-ALA to the deeper skin layers, increasing the red fluorescence of the skin and indicating the potentiality of the system for topical 5-ALA-PDT.
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Al-Kassas R, Donnelly RF, McCarron PA. Aminolevulinic acid-loaded Witepsol microparticles manufactured using a spray congealing procedure: implications for topical photodynamic therapy. J Pharm Pharmacol 2010. [DOI: 10.1211/jpp.61.09.0001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Objectives
The aim was to enhance aminolevulinic acid (ALA) stability by incorporation into low-melting microparticles prepared using a spray congealing procedure and to evaluate temperature-triggered release, allowing topical bioavailability following melting at skin temperature.
Methods
ALA-loaded Witepsol microparticles were prepared using a novel spray congealing technique. Entrapment efficiency was compared with conventional emulsion-based methods and modelled drug release profiles determined using a membrane separation technique. Raised receiver medium temperature was used to determine triggered release. Bioavailability and lipid-mediated enhancement of ALA penetration were determined in excised murine skin.
Key findings
ALA-loaded Witepsol microparticles were spherical, with a mean diameter of 20 μm. Loading and stability studies demonstrated effective encapsulation, ranging from 91% to 100%, with no evidence of degradation to pyrazine derivatives. ALA release correlated with dissolution medium temperature, triggered at temperatures close to that of skin. Results suggested that molten Witepsol enhanced cutaneous permeation, whereas incorporation of microparticles in a semi-solid vehicle attenuated ALA penetration. Optimal use was direct application under occlusion.
Conclusions
Spray congealing is superior to the emulsion-based procedures with respect to encapsulation efficiency of ALA in Witepsol matrices, providing temperature-triggered release, enhanced stability and improved penetration of ALA through keratinised skin. These features could improve ALA delivery to superficial lesions as part of photodynamic therapy.
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Affiliation(s)
- Rasil Al-Kassas
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Paul A McCarron
- Department of Pharmacy and Pharmaceutical Sciences, University of Ulster, Coleraine, Co. Londonderry, UK
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Muzzalupo R, Tavano L, Nicoletta FP, Trombino S, Cassano R, Picci N. Liquid crystalline Pluronic 105 pharmacogels as drug delivery systems: preparation, characterization, andin vitrotransdermal release. J Drug Target 2009; 18:404-11. [DOI: 10.3109/10611860903494211] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Delgado-Charro M. Recent advances on transdermal iontophoretic drug delivery and non-invasive sampling. J Drug Deliv Sci Technol 2009. [DOI: 10.1016/s1773-2247(09)50015-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Skin penetration and retention of L-ascorbic acid 2-phosphate using multilamellar vesicles. Arch Pharm Res 2008; 31:1652-8. [PMID: 19099237 DOI: 10.1007/s12272-001-2164-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2008] [Revised: 11/25/2008] [Accepted: 11/25/2008] [Indexed: 10/21/2022]
Abstract
Transdermal formulation of L-ascorbic acid 2-phosphate magnesium salt (A2P) was prepared using multilamellar vesicles (MLV). A2P was either physically mixed with or entrapped into three different MLVs of neutral, cationic, and anionic liposome vesicles. For the preparation of neutral MLVs, phosphatidylcholine (PC) and cholesterol (CH) were used. For cationic and anionic MLVs, dioleoyl-trimethylammonium-propane and dimyristoyl glycerophosphate were added as surface charge inducers, respectively, in addition to PC and CH. Particle size of the three A2P-loaded MLVs was submicron, and polydispersity index revealed homogenous distribution of the prepared MLVs except neutral ones. Skin penetration study with hairless mouse skin showed that both physical mixtures of A2P with empty MLVs and A2P-loaded MLVs increased penetration of the drug compared to aqueous A2P solution. During the penetration, however, significant amount of the drug was metabolized into L-ascorbic acid, which has no beneficial effect on stimulation of hair growth. Out of the physical mixtures and A2P-loaded MLVs tested, physical mixture of A2P with empty cationic MLV resulted in the greatest skin penetration and retention in hairless mouse skin.
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Fang YP, Wu PC, Tsai YH, Huang YB. Physicochemical and Safety Evaluation of 5-Aminolevulinic Acid in Novel Liposomes as Carrier for Skin Delivery. J Liposome Res 2008; 18:31-45. [DOI: 10.1080/08982100801893952] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Donnelly RF, McCarron PA, Morrow DIJ, Sibani SA, Woolfson AD. Photosensitiser delivery for photodynamic therapy. Part 1: Topical carrier platforms. Expert Opin Drug Deliv 2008; 5:757-66. [PMID: 18590460 DOI: 10.1517/17425247.5.7.757] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) is a medical treatment in which a combination of a photosensitising drug and visible light causes destruction of selected cells. Due to the lack of true selectivity of preformed photosensitisers for neoplastic tissue and their high molecular weights, PDT of superficial skin lesions has traditionally been mediated by topical application of the porphyrin precursor 5-aminolevulinic acid (ALA). OBJECTIVE This article aims to review the traditional formulation-based approaches taken to topical delivery of ALA and discusses the more innovative strategies investigated for enhancement of PDT mediated by topical application of ALA and preformed photosensitisers. METHODS All of the available published print and online literature in this area was reviewed. As drug delivery of agents used in PDT is still something of an emerging field, it was not necessary to go beyond literature from the last 30 years. RESULTS/CONCLUSION PDT of neoplastic skin lesions is currently based almost exclusively on topical application of simple semisolid dosage forms containing ALA or its methyl ester. Until expiry of patents on the current market-leading products, there is unlikely to be a great incentive to engage in design and evaluation of innovative formulations for topical PDT, especially those containing the more difficult-to-deliver preformed photosensitisers.
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Affiliation(s)
- Ryan F Donnelly
- School of Pharmacy, Medical Biology Centre, Queen's University Belfast, 97 Lisburn Road, Belfast, UK.
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Bender J, Simonsson C, Smedh M, Engström S, Ericson MB. Lipid cubic phases in topical drug delivery: Visualization of skin distribution using two-photon microscopy. J Control Release 2008; 129:163-9. [DOI: 10.1016/j.jconrel.2008.04.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2007] [Revised: 04/17/2008] [Accepted: 04/24/2008] [Indexed: 10/22/2022]
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Grüning N, Müller-Goymann CC. Physicochemical Characterisation of a Novel Thermogelling Formulation for Percutaneous Penetration of 5-Aminolevulinic Acid. J Pharm Sci 2008; 97:2311-23. [PMID: 17828744 DOI: 10.1002/jps.21157] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The present contribution was dedicated to the development and characterisation of a semisolid formulation of 5-aminolevulinic acid (5-ALA), appropriate for the diagnosis and treatment of actinic keratosis in photodynamic therapy. To achieve sufficiently high concentrations of the polar substance within the living epithelium after topical application, the semisolid base was enriched with penetration enhancers. A semisolid liquid crystalline system for drug delivering was the formulation of choice. It was composed of isopropyl alcohol, dimethyl isosorbide, medium chain triglycerides, water, and Pluronic F 127 as a polyoxyethylene-polyoxypropylene surface-active block copolymer. Rheometrical investigations were performed in the oscillatory mode and showed a thermo reversible gelification behaviour of the formulation, which therefore was denoted Thermogel. Permeation studies through human stratum corneum revealed higher permeation coefficients for 5-ALA from the Thermogel than from different German Pharmacopoeia creams. For example a 7.5-fold increase in comparison with Basiscreme DAC, and a 19.5-fold increase compared to water containing hydrophilic ointment. With respect to Dolgit(R) Mikrogel, the permeation coefficient from the Thermogel was 6.4-fold higher. These results were in accordance with those of differential scanning calorimetry measurements. Thermogel disclosed the strongest interactions with stratum corneum lipids.
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Affiliation(s)
- Nadja Grüning
- Technical University of Braunschweig, Institute of Pharmaceutical Technology, Mendelssohnstrasse 1, 38106 Braunschweig, Germany
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Fang YP, Tsai YH, Wu PC, Huang YB. Comparison of 5-aminolevulinic acid-encapsulated liposome versus ethosome for skin delivery for photodynamic therapy. Int J Pharm 2008; 356:144-52. [DOI: 10.1016/j.ijpharm.2008.01.020] [Citation(s) in RCA: 125] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2007] [Revised: 12/31/2007] [Accepted: 01/04/2008] [Indexed: 02/08/2023]
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Bender J, Jarvoll P, Nydén M, Engström S. Structure and dynamics of a sponge phase in the methyl δ-aminolevulinate/monoolein/water/propylene glycol system. J Colloid Interface Sci 2008; 317:577-84. [DOI: 10.1016/j.jcis.2007.09.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Revised: 09/19/2007] [Accepted: 09/20/2007] [Indexed: 11/29/2022]
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Lopes LB, Speretta FFF, Bentley MVLB. Enhancement of skin penetration of vitamin K using monoolein-based liquid crystalline systems. Eur J Pharm Sci 2007; 32:209-15. [PMID: 17900879 DOI: 10.1016/j.ejps.2007.07.006] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2007] [Revised: 07/09/2007] [Accepted: 07/27/2007] [Indexed: 11/30/2022]
Abstract
Application of vitamin K (vitK) to the skin has been used for suppression of pigmentation and resolution of bruising. However, there is no report concerning the extent of its penetration in the skin. In this study, we investigated the in vitro skin penetration and transdermal delivery of vitK, and whether these parameters may be enhanced by lipid-based drug delivery systems. The lipid formulation used in this study contains monoolein (MO), which is structured as a liquid crystalline phase, named hexagonal phase. The skin penetration of vitK was assessed in vitro using porcine ear skin mounted in a Franz diffusion cell. VitK (2.5%, w/w) was incorporated in either of three formulations: liquid vaseline, MO-based hexagonal phase gel (MO-vitK-water at 77.5/2.5/20, w/w/w) and MO-based nanodispersion of hexagonal phase (MO-vitK-poloxamer-water at 15/2.5/0.9/81.6, w/w/w/w). When vaseline was used, vitK was delivered mainly to the stratum corneum (SC): 9.50+/-0.97 microg/cm(2) of vitK was delivered to the SC at 12 h post-application, whereas 4.90 +/- 1.28 microg/cm(2) of vitK was delivered to the epidermis (E)+dermis (D) at the same time point. The hexagonal phase gel and the nanodispersion delivered approximately 2 times more vitK to the SC and 2.0-3.7 times more vitK to the [E+D] than the vaseline solution. The nanodispersion (but not the gel) also increased the transdermal delivery of vitK at 9 h ( approximately 3-fold increase). These results demonstrate that the topical delivery of vitK incorporated in a lipophilic vehicle is small, but it may be enhanced by MO-based systems, which might be useful to increase the effectiveness of topical vitK therapy.
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Affiliation(s)
- Luciana B Lopes
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, 14040-930, Ribeirão Preto, SP, Brazil
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Salvati A, Lynch I, Malmborg C, Topgaard D. Chemical shift imaging of molecular transport in colloidal systems: Visualization and quantification of diffusion processes. J Colloid Interface Sci 2007; 308:542-50. [PMID: 17182051 DOI: 10.1016/j.jcis.2006.11.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2006] [Revised: 11/06/2006] [Indexed: 11/29/2022]
Abstract
Magnetic resonance imaging with chemical shift resolution is demonstrated to provide detailed information about molecular transport on the macroscopic scale in complex colloidal systems. The concentrations of species with distinct 1H resonance lines can be quantified from spatially resolved, high-resolution, 1H nuclear magnetic resonance spectra. The method is demonstrated by experiments on three systems with multiple simultaneous transport processes where the diffusion coefficients depend on position and/or on the concentration of other species: (1) release of poly(ethylene glycol) and imidazole from a hydrogel into an external reservoir of water, (2) migration of acetic acid and tetramethylammonium ions in a highly concentrated water-in-oil emulsion with initially non-uniform concentration of solutes, and (3) release of tetramethylammonium ions loaded into a hydrogel triggered by the diffusion of methyl green into the gel matrix.
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Affiliation(s)
- Anna Salvati
- Physical Chemistry 1, Lund University, P.O.B. 124, SE-221 00 Lund, Sweden.
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Lopes LB, Ferreira DA, de Paula D, Garcia MTJ, Thomazini JA, Fantini MCA, Bentley MVLB. Reverse hexagonal phase nanodispersion of monoolein and oleic acid for topical delivery of peptides: in vitro and in vivo skin penetration of cyclosporin A. Pharm Res 2006; 23:1332-42. [PMID: 16715364 DOI: 10.1007/s11095-006-0143-7] [Citation(s) in RCA: 143] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2005] [Accepted: 01/27/2006] [Indexed: 11/30/2022]
Abstract
PURPOSE To obtain and characterize reverse hexagonal phase nanodispersions of monoolein and oleic acid, and to evaluate the ability of such system to improve the skin penetration of a model peptide (cyclosporin A, CysA) without causing skin irritation. METHODS The nanodispersion was prepared by mixing monoolein, oleic acid, poloxamer, and water. CysA was added to the lipid mixture to obtain a final concentration of 0.6% (w/w). The nanodispersion was characterized; the skin penetration of CysA was assessed in vitro (using porcine ear skin mounted in a Franz diffusion cell) and in vivo (using hairless mice). RESULTS The obtainment of the hexagonal phase nanodispersion was demonstrated by polarized light microscopy, cryo-TEM and small angle X-ray diffraction. Particle diameter was 181.77 +/- 1.08 nm. At 0.6%, CysA did not change the liquid crystalline structure of the particles. The nanodispersion promoted the skin penetration of CysA both in vitro and in vivo. In vitro, the maximal concentrations (after 12 h) of CysA obtained in the stratum corneum (SC) and in the epidermis without stratum corneum (E) + dermis (D) were approximately 2 fold higher when CysA was incorporated in the nanodispersion than when it was incorporated in the control formulation (olive oil). In vivo, 1.5- and 2.8-times higher concentrations were achieved in the SC and [E+D], respectively, when the nanodispersion was employed. No histopathological alterations were observed in the skin of animals treated with the nanodispersion. CONCLUSION These results demonstrate that the hexagonal phase nanodispersion is effective in improving the topical delivery of peptides without causing skin irritation.
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Affiliation(s)
- Luciana B Lopes
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Av. do Café, s/n, Ribeirão Preto, SP 14040-903, Brazil
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Bugaj A, Iani V, Juzeniene A, Juzenas P, Ma LW, Moan J. The effect of dimethylsulfoxide, 1-[2-(decylthio)ethyl]azacyclopentan-2-one and Labrafac®CC on porphyrin formation in normal mouse skin during topical application of methyl 5-aminolevulinate: A fluorescence and extraction study. Photodiagnosis Photodyn Ther 2006; 3:27-33. [DOI: 10.1016/s1572-1000(05)00109-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2005] [Revised: 10/07/2005] [Accepted: 10/21/2005] [Indexed: 10/25/2022]
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Bender J, Ericson MB, Merclin N, Iani V, Rosén A, Engström S, Moan J. Lipid cubic phases for improved topical drug delivery in photodynamic therapy. J Control Release 2005; 106:350-60. [PMID: 15967535 DOI: 10.1016/j.jconrel.2005.05.010] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2005] [Revised: 05/02/2005] [Accepted: 05/09/2005] [Indexed: 10/25/2022]
Abstract
We have evaluated the efficacy of lipid cubic phases, highly ordered self-assembly systems on the nanometer level, as drug delivery vehicles for in vivo topical administration of delta-aminolevulinic acid (ALA) and its methyl ester (m-ALA) on nude mice skin. ALA, a precursor of heme, induces the production of the photosensitizer protoporphyrin IX (PpIX) in living tissue. Measuring the PpIX fluorescence at the skin surface, after topical administration, makes indirect quantification of the penetration of ALA into the tissue possible. Cubic phases were formed of lipid (monoolein or phytantriol), water and drug. In some cases, propylene glycol was included in the cubic phase as well. The drug concentration was 3% (w/w, based on the total sample weight) in all investigated vehicles. When the formulations were applied for 1 h, the monoolein cubic systems and the three-component phytantriol sample showed higher fluorescence compared to the standard ointment during the 10 h of measurement. Both ALA and m-ALA yielded similar results, although the differences between the investigated vehicles were more pronounced when using m-ALA. For the 24-h applications, the monoolein cubic systems with m-ALA showed faster PpIX formation than the standard ointment, implying higher PpIX levels at short application times (less than 4 h). The systemic PpIX fluorescence of ALA was elevated by using the lipid cubic formulations. Notably, a small systemic effect was also observed for the monoolein cubic sample with m-ALA. These results imply improved PpIX formation when using the lipid cubic systems, most probably due to enhanced drug penetration.
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Affiliation(s)
- Johanna Bender
- Department of Chemical and Biological Engineering, Pharmaceutical Technology, Chalmers University of Technology, SE-412 96 Göteborg, Sweden.
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Literature Alerts. Drug Deliv 2005. [DOI: 10.1080/10717540500201502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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