101
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Karl B, Alkhatib Y, Beekmann U, Bellmann T, Blume G, Steiniger F, Thamm J, Werz O, Kralisch D, Fischer D. Development and characterization of bacterial nanocellulose loaded with Boswellia serrata extract containing nanoemulsions as natural dressing for skin diseases. Int J Pharm 2020; 587:119635. [PMID: 32693288 DOI: 10.1016/j.ijpharm.2020.119635] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 07/06/2020] [Accepted: 07/07/2020] [Indexed: 12/20/2022]
Abstract
The combination of the anti-inflammatory lipophilic Boswellia serrata extract with the natural hydropolymer bacterial nanocellulose (BNC) for the treatment of skin diseases is counteracted by their different hydro/lipophilicity. To overcome the hydrophilicity of the BNC, the water in its network was exchanged by single and double nanoemulsions. Incorporation of the Boswellia serrata extract in the nanoemulsions formed particles of about 115 to 150 nm with negative zeta potential and storage stability over 30 days at temperatures between 4 and 32 °C. Their loading into the BNC did not change the preferential characteristics of the nanocellulose like water absorption and retention, softness, and pressure stability in a relevant way. Loaded BNC could be sterilized by an electron-beam procedure. A biphasic drug release profile of lead compounds was observed by Franz cell diffusion test. The biocompatibility of the loaded BNC was confirmed ex ovo by a shell-less hen's egg test. Tape stripping experiments using porcine skin determined a dependency of the drug penetration into skin on the type of nanoemulsion, single vs. repeated applications and the incubation time. In conclusion, the hydrophilicity of BNC could be overcome using nanoemulsions which offers the possibility for the anti-inflammatory skin treatment with Boswellia serrata extract.
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Affiliation(s)
- Berit Karl
- Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany.
| | - Yaser Alkhatib
- Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany.
| | - Uwe Beekmann
- Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany.
| | - Tom Bellmann
- Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany.
| | - Gabriele Blume
- Sopharcos Dr. Gabriele Blume, Im Schloss 7, Steinau an der Straße, Germany.
| | - Frank Steiniger
- Electron Microscopy Center, University Hospital Jena, Friedrich Schiller University Jena, Ziegelmuehlenweg 1, 07743 Jena, Germany.
| | - Jana Thamm
- Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany.
| | - Oliver Werz
- Pharmaceutical and Medicinal Chemistry, Philosophenweg 14, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Dana Kralisch
- Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Dagmar Fischer
- Pharmaceutical Technology and Biopharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
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102
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Bazán Henostroza MA, Curo Melo KJ, Nishitani Yukuyama M, Löbenberg R, Araci Bou-Chacra N. Cationic rifampicin nanoemulsion for the treatment of ocular tuberculosis. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124755] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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103
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Optimization of polysaccharides-based nanoemulsion using response surface methodology and application to improve postharvest storage of apple (Malus domestica). JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2020. [DOI: 10.1007/s11694-020-00514-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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104
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Pucek A, Tokarek B, Waglewska E, Bazylińska U. Recent Advances in the Structural Design of Photosensitive Agent Formulations Using "Soft" Colloidal Nanocarriers. Pharmaceutics 2020; 12:E587. [PMID: 32599791 PMCID: PMC7356306 DOI: 10.3390/pharmaceutics12060587] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/13/2020] [Accepted: 06/15/2020] [Indexed: 02/06/2023] Open
Abstract
The growing demand for effective delivery of photosensitive active compounds has resulted in the development of colloid chemistry and nanotechnology. Recently, many kinds of novel formulations with outstanding pharmaceutical potential have been investigated with an expansion in the design of a wide variety of "soft" nanostructures such as simple or multiple (double) nanoemulsions and lipid formulations. The latter can then be distinguished into vesicular, including liposomes and "smart" vesicles such as transferosomes, niosomes and ethosomes, and non-vesicular nanosystems with solid lipid nanoparticles and nanostructured lipid carriers. Encapsulation of photosensitive agents such as drugs, dyes, photosensitizers or antioxidants can be specifically formulated by the self-assembly of phospholipids or other amphiphilic compounds. They are intended to match unique pharmaceutic and cosmetic requirements and to improve their delivery to the target site via the most common, i.e., transdermal, intravenous or oral administration routes. Numerous surface modifications and functionalization of the nanostructures allow increasing their effectiveness and, consequently, may contribute to the treatment of many diseases, primarily cancer. An increasing article number is evidencing significant advances in applications of the different classes of the photosensitive agents incorporated in the "soft" colloidal nanocarriers that deserved to be highlighted in the present review.
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Affiliation(s)
| | | | | | - Urszula Bazylińska
- Department of Physical and Quantum Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland; (A.P.); (B.T.); (E.W.)
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105
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Deaguero IG, Huda MN, Rodriguez V, Zicari J, Al-Hilal TA, Badruddoza AZM, Nurunnabi M. Nano-Vesicle Based Anti-Fungal Formulation Shows Higher Stability, Skin Diffusion, Biosafety and Anti-Fungal Efficacy In Vitro. Pharmaceutics 2020; 12:pharmaceutics12060516. [PMID: 32517047 PMCID: PMC7355414 DOI: 10.3390/pharmaceutics12060516] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 01/12/2023] Open
Abstract
Opportunistic fungal infections are responsible for over 1.5 million deaths per year. This has created a need for highly effective antifungal medication to be as potent as possible. In this study, we improved the efficacy of a common over the counter (OTC) antifungal skin medication, miconazole, by encapsulating nano-molecules of the drug in cholesterol/sodium oleate nano-vesicles. These nano-vesicles were characterized to optimize their size, zeta potential, polydispersity index and encapsulation efficiency. Furthermore, these nano-vesicles were compared to a conventional miconazole-based commercially available cream to determine potential improvements via permeation through the stratum corneum, cytotoxicity, and antifungal capabilities. Our results found that the vesicle size was within the nano range (~300 nm), with moderate polydispersity and stability. When compared with the commercially available cream, Actavis, as well as free miconazole, the miconazole nano-vesicle formulation displayed enhanced fungal inhibition by a factor of three or more when compared to free miconazole. Furthermore, with smaller nanoparticle (NP) sizes, higher percentages of miconazole may be delivered, further enhancing the efficacy of miconazole's antifungal capability. Cytotoxicity studies conducted with human dermal fibroblast cells confirm its biosafety and biocompatibility, as cell survival rate was observed to be twofold higher in nano-vesicle formulation than free miconazole. This formulation has the potential to treat fungal infections through increasing the retention time in the skin, improving the treatment approach, and by enhancing the efficacy via the use of nano-vesicles.
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Affiliation(s)
- Isaac G. Deaguero
- Biomedical Engineering Program, School of Engineering, University of Texas at El Paso, TX 79902, USA; (I.G.D.); (M.N.H.); (V.R.); (J.Z.); (T.A.A.-H.)
| | - Md Nurul Huda
- Biomedical Engineering Program, School of Engineering, University of Texas at El Paso, TX 79902, USA; (I.G.D.); (M.N.H.); (V.R.); (J.Z.); (T.A.A.-H.)
| | - Victor Rodriguez
- Biomedical Engineering Program, School of Engineering, University of Texas at El Paso, TX 79902, USA; (I.G.D.); (M.N.H.); (V.R.); (J.Z.); (T.A.A.-H.)
| | - Jade Zicari
- Biomedical Engineering Program, School of Engineering, University of Texas at El Paso, TX 79902, USA; (I.G.D.); (M.N.H.); (V.R.); (J.Z.); (T.A.A.-H.)
| | - Taslim A. Al-Hilal
- Biomedical Engineering Program, School of Engineering, University of Texas at El Paso, TX 79902, USA; (I.G.D.); (M.N.H.); (V.R.); (J.Z.); (T.A.A.-H.)
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, TX 79902, USA
| | - Abu Zayed Md Badruddoza
- Department of Chemical and Life Sciences Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
- Correspondence: (A.Z.M.B.); (M.N.); Tel.: +1-915-747-8335 (M.N.)
| | - Md Nurunnabi
- Biomedical Engineering Program, School of Engineering, University of Texas at El Paso, TX 79902, USA; (I.G.D.); (M.N.H.); (V.R.); (J.Z.); (T.A.A.-H.)
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, TX 79902, USA
- Border Biomedical Research Center, University of Texas at El Paso, TX 79902, USA
- Department of Environmental Science and Engineering, University of Texas at El Paso, TX 79902, USA
- Correspondence: (A.Z.M.B.); (M.N.); Tel.: +1-915-747-8335 (M.N.)
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106
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Shaker DS, Ishak RAH, Elhuoni MA, Ghoneim AM. Boosting transdermal delivery of atorvastatin calcium via o/w nanoemulsifying system: Two-step optimization, ex vivo and in vivo evaluation. Int J Pharm 2020; 578:119073. [PMID: 31982556 DOI: 10.1016/j.ijpharm.2020.119073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 12/16/2022]
Abstract
A nanoemulsion system was designed for Atorvastatin calcium (ATOR) transdermal delivery to overcome its poor bioavailability of (30%) resulting from the extensive first-pass effect and dissolution rate-limited in vivo absorption. Pseudo ternary phase diagrams were developed, and various NE formulae were prepared using oleic acid (OA), Tween 80 as surfactant and PEG 400 as cosurfactant, ethanol and limonene as permeation enhancers (PEs). NEs were characterized for morphology, droplet size, zeta potential and in vitro release. The optimized formulae were assessed for ex vivo transdermal permeation and in vivo pharmacodynamic/pharmacokinetic studies. Hypocholesterolemic effect after 7 days skin treatment was detected and compared to oral ATOR dispersion. Finally, blood plasma levels were measured for 24 h for rats received the selected transdermal NE and transdermal drug in OA. The obtained results suggested the low potentiality of NE systems in transdermal delivery of lipophilic drugs, only the addition of PEs is driving factor for increasing drug flux through full thickness rat skin. In the optimized formula, the presence of ethanol and PEG 400 disrupts SC lipids exhibiting rapid ex vivo release profile compared to other NEs and to ATOR in OA. In contrast, the optimized NE achieved a prolonged plasma profile. Transdermal NE was significantly more efficient than oral administration in lowering cholesterol plasma level and in increasing ATOR bioavailability. In conclusion, data revealed no correlation between ex vivo and in vivo studies explained by the collapse of the follicles in ex vivo skin permeation study, leaving only the lipoidal pathway for NE to pass through, thus only NE components, neither nanosizing nor other reported mechanisms, are the main influencing factors. In vivo experiments suggested that o/w NE changed ATOR pathway to follicular delivery leading to accumulation of NE in follicles and consequently a prolonged plasma profile.
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Affiliation(s)
- Dalia S Shaker
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt (FUE), Cairo, Egypt.
| | - Rania A H Ishak
- Department of Pharmaceutics & Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
| | - Muaeid A Elhuoni
- Quality Control Department, Elnajah Medical Services, Benghazi, Libya
| | - Amira M Ghoneim
- Department of Pharmaceutics &Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt (FUE), Cairo, Egypt.
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107
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Chaiyana W, Anuchapreeda S, Somwongin S, Marsup P, Lee KH, Lin WC, Lue SC. Dermal Delivery Enhancement of Natural Anti-Ageing Compounds from Ocimum sanctum Linn. Extract by Nanostructured Lipid Carriers. Pharmaceutics 2020; 12:pharmaceutics12040309. [PMID: 32235376 PMCID: PMC7237989 DOI: 10.3390/pharmaceutics12040309] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/27/2020] [Accepted: 03/27/2020] [Indexed: 12/24/2022] Open
Abstract
This study aimed to develop nanodelivery systems for enhancing the Ocimum sanctum Linn. extract delivery into the skin. Rosmarinic acid (RA) was used as a marker for the quantitative determination of the extract by high-performance liquid chromatography. Nanostructured lipid carriers (NLC), nanoemulsion, liposome, and niosome, were developed and characterized for internal droplet size, polydispersity index (PDI), and zeta potential using photon correlation spectroscopy. Irritation properties of each formulations were investigated by hen's egg test on the chorioallantoic membrane. In vitro release, skin permeation, and skin retention are determined. NLC was suggested as the most suitable system since it enhances the dermal delivery of RA with the significant skin retention amount of 27.1 ± 1.8% (p < 0.05). Its internal droplet size, PDI, and zeta potential were 261.0 ± 5.3 nm, 0.216 ± 0.042, and -45.4 ± 2.4 mV, respectively. RA released from NLC with a sustained release pattern with the release amount of 1.29 ± 0.15% after 24 h. NLC induced no irritation and did not permeate through the skin. Therefore, NLC containing O. sanctum extract was an attractive dermal delivery system that was safe and enhanced dermal delivery of RA. It was suggested for further used as topical anti-ageing products.
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Affiliation(s)
- Wantida Chaiyana
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (S.S.); (P.M.)
- Research Center of Pharmaceutical Nanotechnology, Chiang Mai University, Chiang Mai 50200, Thailand;
- Correspondence: ; Tel.: +66-5394-4309
| | - Songyot Anuchapreeda
- Research Center of Pharmaceutical Nanotechnology, Chiang Mai University, Chiang Mai 50200, Thailand;
- Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Suvimol Somwongin
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (S.S.); (P.M.)
| | - Pachabadee Marsup
- Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (S.S.); (P.M.)
| | - Kuan-Han Lee
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan;
| | - Wei-Chao Lin
- Department of Cosmetic Science and Institute of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan; (W.-C.L.); (S.-C.L.)
| | - Shang-Chian Lue
- Department of Cosmetic Science and Institute of Cosmetic Science, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan; (W.-C.L.); (S.-C.L.)
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108
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Formulation and Optimization of Nanoemulsions Using the Natural Surfactant Saponin from Quillaja Bark. Molecules 2020; 25:molecules25071538. [PMID: 32230976 PMCID: PMC7181021 DOI: 10.3390/molecules25071538] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 11/30/2022] Open
Abstract
Replacing synthetic surfactants by natural alternatives when formulating nanoemulsions has gained attention as a sustainable approach. In this context, nanoemulsions based on sweet almond oil and stabilized by saponin from Quillaja bark with glycerol as cosurfactant were prepared by the high-pressure homogenization method. The effects of oil/water (O/W) ratio, total surfactant amount, and saponin/glycerol ratio on their stability were analyzed. The formation and stabilization of the oil-in-water nanoemulsions were analyzed through the evaluation of stability over time, pH, zeta potential, and particle size distribution analysis. Moreover, a design of experiments was performed to assess the most suitable composition based on particle size and stability parameters. The prepared nanoemulsions are, in general, highly stable over time, showing zeta potential values lower than −40 mV, a slight acid behavior due to the character of the components, and particle size (in volume) in the range of 1.1 to 4.3 µm. Response surface methodology revealed that formulations using an O/W ratio of 10/90 and 1.5 wt% surfactant resulted in lower particle sizes and zeta potential, presenting higher stability. The use of glycerol did not positively affect the formulations, which reinforces the suitability of preparing highly stable nanoemulsions based on natural surfactants such as saponins.
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109
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Development of Topical/Transdermal Self-Emulsifying Drug Delivery Systems, Not as Simple as Expected. Sci Pharm 2020. [DOI: 10.3390/scipharm88020017] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Self-emulsifying drug delivery systems (SEDDSs) originated as an oral lipid-based drug delivery system with the sole purpose of improving delivery of highly lipophilic drugs. However, the revolutionary drug delivery possibilities presented by these uniquely simplified systems in terms of muco-adhesiveness and zeta-potential changing capacity lead the way forward to ground-breaking research. Contrarily, SEDDSs destined for topical/transdermal drug delivery have received limited attention. Therefore, this review is focused at utilising principles, established during development of oral SEDDSs, and tailoring them to fit evaluation strategies for an optimised topical/transdermal drug delivery vehicle. This includes a detailed discussion of how the authentic pseudo-ternary phase diagram is employed to predict phase behaviour to find the self-emulsification region most suitable for formulating topical/transdermal SEDDSs. Additionally, special attention is given to the manner of characterising oral SEDDSs compared to topical/transdermal SEDDSs, since absorption within the gastrointestinal tract and the multi-layered nature of the skin are two completely diverse drug delivery territories. Despite the advantages of the topical/transdermal drug administration route, certain challenges such as the relatively undiscovered field of skin metabolomics as well as the obstacles of choosing excipients wisely to establish skin penetration enhancement might prevail. Therefore, development of topical/transdermal SEDDSs might be more complicated than expected.
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110
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Pandey P, Satija S, Wadhwa R, Mehta M, Purohit D, Gupta G, Prasher P, Chellappan DK, Awasthi R, Dureja H, Dua K. Emerging trends in nanomedicine for topical delivery in skin disorders: Current and translational approaches. Dermatol Ther 2020; 33:e13292. [DOI: 10.1111/dth.13292] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/12/2020] [Accepted: 02/26/2020] [Indexed: 12/27/2022]
Affiliation(s)
- Parijat Pandey
- Shri Baba Mastnath Institute of Pharmaceutical Sciences and Research Baba Mastnath University Rohtak Haryana India
| | - Saurabh Satija
- School of Pharmaceutical Sciences Lovely Professional University Phagwara Punjab India
| | - Ridhima Wadhwa
- Faculty of Life Science and Biotechnology South Asian University Akbar Bhawan, Chanakyapuri New Delhi India
- Discipline of Pharmacy, Graduate School of Health University of Technology Sydney Sydney Australia
| | - Meenu Mehta
- School of Pharmaceutical Sciences Lovely Professional University Phagwara Punjab India
- Discipline of Pharmacy, Graduate School of Health University of Technology Sydney Sydney Australia
- Centre for Inflammation Centenary Institute Sydney New South Wales Australia
| | - Deepika Purohit
- Department of Pharmaceutical Sciences Indira Gandhi University Rewari Haryana India
| | - Gaurav Gupta
- School of Pharmaceutical Sciences Jaipur National University Jaipur Rajasthan India
| | - Parteek Prasher
- Department of Chemistry University of Petroleum and Energy Studies Dehradun India
| | - Dinesh K. Chellappan
- Departmental Sciences, School of Pharmacy International Medical University Kuala Lumpur Malaysia
| | - Rajendra Awasthi
- Amity Institute of Pharmacy Amity University Uttar Pradesh Noida Uttar Pradesh India
| | - Harish Dureja
- Department of Pharmaceutical Sciences Maharshi Dayanand University Rohtak Haryana India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health University of Technology Sydney Sydney Australia
- Centre for Inflammation Centenary Institute Sydney New South Wales Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute (HMRI) and School of Biomedical Sciences and Pharmacy, The University of Newcastle (UoN) Callaghan New South Wales Australia
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111
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Kozaka S, Tahara Y, Wakabayashi R, Nakata T, Ueda T, Kamiya N, Goto M. Transcutaneous Cancer Vaccine Using a Reverse Micellar Antigen Carrier. Mol Pharm 2019; 17:645-655. [PMID: 31833775 DOI: 10.1021/acs.molpharmaceut.9b01104] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Skin dendritic cells (DCs) such as Langerhans cells and dermal dendritic cells have a pivotal role in inducing antigen-specific immunity; therefore, transcutaneous cancer vaccines are a promising strategy to prophylactically prevent the onset of a variety of diseases, including cancers. The largest obstacle to delivering antigen to these skin DC subsets is the barrier function of the stratum corneum. Although reverse micellar carriers are commonly used to enhance skin permeability to hydrophilic drugs, the transcutaneous delivery of antigen, proteins, or peptides has not been achieved to date because of the large molecular weight of drugs. To achieve effective antigen delivery to skin DCs, we developed a novel strategy using a surfactant as a skin permeation enhancer in a reverse micellar carrier. In this study, glyceryl monooleate (MO) was chosen as a skin permeation enhancer, and the MO-based reverse micellar carrier enabled the successful delivery of antigen to Langerhans cells and dermal dendritic cells. Moreover, transcutaneous vaccination with the MO-based reverse micellar carrier significantly inhibited tumor growth, indicating that it is a promising vaccine platform against tumors.
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Affiliation(s)
| | | | | | - Takahiro Nakata
- Kobayashi Pharmaceutical Co., Ltd. , 1-30-3 Toyokawa , Ibaraki , Osaka 567-0057 , Japan
| | - Taro Ueda
- Kobayashi Pharmaceutical Co., Ltd. , 1-30-3 Toyokawa , Ibaraki , Osaka 567-0057 , Japan
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