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Liu W, Lewis SE, di Lorenzo M, Squires AM. Development of Redox-Active Lyotropic Lipid Cubic Phases for Biosensing Platforms. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:170-178. [PMID: 38113389 PMCID: PMC10786026 DOI: 10.1021/acs.langmuir.3c02307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/21/2023]
Abstract
Enzyme-based electrochemical biosensors play an important role in point-of-care diagnostics for personalized medicine. For such devices, lipid cubic phases (LCP) represent an attractive method to immobilize enzymes onto conductive surfaces with no need for chemical linking. However, research has been held back by the lack of effective strategies to stably co-immobilize enzymes with a redox shuttle that enhances the electrical connection between the enzyme redox center and the electrode. In this study, we show that a monoolein (MO) LCP system doped with an amphiphilic redox mediator (ferrocenylmethyl)dodecyldimethylammonium bromide (Fc12) can be used for enzyme immobilization to generate an effective biosensing platform. Small-angle X-ray scattering (SAXS) showed that MO LCP can incorporate Fc12 while maintaining the Pn3m symmetry morphology. Cyclic voltammograms of Fc12/MO showed quasi-reversible behavior, which implied that Fc12 was able to freely diffuse in the lipid membrane of LCP with a diffusion coefficient of 1.9 ± 0.2 × 10-8 cm2 s-1 at room temperature. Glucose oxidase (GOx) was then chosen as a model enzyme and incorporated into 0.2%Fc12/MO to evaluate the activity of the platform. GOx hosted in 0.2%Fc12/MO followed Michaelis-Menten kinetics toward glucose with a KM and Imax of 8.9 ± 0.5 mM and 1.4 ± 0.2 μA, respectively, and a linearity range of 2-17 mM glucose. Our results therefore demonstrate that GOx immobilized onto 0.2% Fc12/MO is a suitable platform for the electrochemical detection of glucose.
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Affiliation(s)
- Wanli Liu
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
| | - Simon E. Lewis
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
| | - Mirella di Lorenzo
- Department
of Chemical Engineering, University of Bath, Bath BA2 7AY, U.K.
| | - Adam M. Squires
- Department
of Chemistry, University of Bath, Bath BA2 7AY, U.K.
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2
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Vitória Pupo Silvestrini A, Garcia Praça F, Nani Leite M, Carvalho de Abreu Fantini M, Andrey Cipriani Frade M, Vitória Lopes Badra Bentley M. Liquid crystalline nanoparticles enable a multifunctional approach for topical psoriasis therapy by co-delivering triptolide and siRNAs. Int J Pharm 2023; 640:123019. [PMID: 37149114 DOI: 10.1016/j.ijpharm.2023.123019] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/08/2023]
Abstract
Liquid crystalline nanoparticles (LCNs) are an attractive drugs topical delivery system due to the great internal ordering, wide interfacial area and structural similarities with the skin. In this work, LCNs were designed to encapsulate triptolide (TP) and to complex on its surface small interfering RNAs (siRNA) targeting TNF-α and IL-6, aiming at topical co-delivery and regulating multi-targets in psoriasis. These multifunctional LCNs showed appropriate physicochemical properties for topical application, such as a mean size of 150 nm, low polydispersion, TP encapsulation greater than 90% and efficient complexation with siRNA. The internal reverse hexagonal mesostructure of LCNs was confirmed by SAXS while their morphology was assessed by cryo-TEM. In vitro permeation studies revealed an increase of more than 20-fold in the distribution of TP through the porcine epidermis/dermis was achieved after the application of LCN-TP or LCN TP in hydrogel. In cell culture, LCNs showed good compatibility and rapid internalization, which was attributed to macropinocytosis and caveolin-mediated endocytosis. Anti-inflammatory potential of multifunctional LCNs was assessed by reducing of TNF-α, IL-6, IL-1β and TGF-β1 levels in LPS-stimulated macrophages. These results support the hypothesis that the co-delivery of TP and siRNAs by LCNs may be a new strategy for psoriasis topical therapy.
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Affiliation(s)
- Ana Vitória Pupo Silvestrini
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, 14040-903, Ribeirao Preto, SP, Brazil
| | - Fabíola Garcia Praça
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, 14040-903, Ribeirao Preto, SP, Brazil
| | - Marcel Nani Leite
- Division of Dermatology, Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Marco Andrey Cipriani Frade
- Division of Dermatology, Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil
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3
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The Prospects of Algae-Derived Vitamins and Their Precursors for Sustainable Cosmeceuticals. Processes (Basel) 2023. [DOI: 10.3390/pr11020587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
Aquatic algae are a rich source of a wide range of bioproducts intended to compete for a sizable global market share. Thanks to the gradual shift towards the use of natural products, microalgae-derived bioactive compounds offer an ecofriendly and vegan option to the cosmeceutical sector, whose products aim to improve skin health but currently consist of mostly synthetic chemicals. In particular, algae-derived vitamins and their precursors are being explored and widely used in the cosmeceuticals industry as compounds that contain biologically active ingredients with therapeutic benefits. The present review highlights the current strategies for industrial production of an array of vitamins from algae for cosmeceutical applications. When compared to traditional plant sources, algae have been found to accumulate vitamins, such as A, B1, B2, B6, B12, C and E, in high concentrations. The purpose of this review is to provide context for the development of a green and sustainable algae-derived bioeconomy by summarizing and comparing the current market for vitamins and precursors derived from algae, as well as presenting novel strategies and key findings from the most recent research in this area. Emphasis is placed on novel biotechnological interventions that encompass genetic modifications, genetic engineering, and media development to enhance vitamin biosynthesis.
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Lopes LB, Apolinário AC, Salata GC, Malagó ID, Passos JS. Lipid Nanocarriers for Breast Cancer Treatment. Cancer Nanotechnol 2023. [DOI: 10.1007/978-3-031-17831-3_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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5
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Salata GC, Malagó ID, Lopes LB. A Lipid-Based In Situ-Forming Hexagonal Phase for Prolonged Retention and Drug Release in the Breast Tissue. AAPS PharmSciTech 2022; 23:260. [PMID: 36123553 DOI: 10.1208/s12249-022-02411-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 08/26/2022] [Indexed: 11/30/2022] Open
Abstract
In this study, the addition of monoolein to phosphatidylcholine (PC), tricaprylin, and propylene glycol (PG) mixtures was studied to produce fluid precursor formulations (FIPs) that could transform into hexagonal phase (resistant to aqueous dilution) in vitro and in vivo. The overall goal was to obtain FIPs that could incorporate chemopreventive drugs for subcutaneous administration in the mammary tissue to inhibit the development and/or recurrence of breast cancer. Increasing PG content reduced FIP viscosity up to ~ 2.5-fold, while increases in PC (over monoolein) increased the formation of emulsified systems. The hexagonal phase was observed at 20% of water and higher, with the minimum amount of water necessary for this formation increasing with PG content. The selected FIP formed a depot in vivo after ~ 24 h of administration; its structure was compatible with the hexagonal phase and it remained in the mammary tissue for at least 30 days, prolonging the permanence of a fluorescent probe. In vitro, the release of the synthetic retinoid fenretinide was slow, with ~ 9% of the drug released in 72 h. Consistent with this slow release, fenretinide IC50 in breast cancer cells was ~ 100-fold higher in the selected FIP compared to its solution. The FIP reduced cell migration and presented higher cytotoxicity towards tumor compared to non-tumor cells. Given the limited number of options for pharmacological prevention of breast cancer development and recurrences, this formulation could potentially find applicability to reduce the frequency of administration and improve local concentrations of chemopreventive drugs.
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Affiliation(s)
- Giovanna C Salata
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, 1524 Av. Prof. Lineu Prestes, São Paulo-SP, 05508-000, Brazil
| | - Isabella D Malagó
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, 1524 Av. Prof. Lineu Prestes, São Paulo-SP, 05508-000, Brazil
| | - Luciana B Lopes
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, 1524 Av. Prof. Lineu Prestes, São Paulo-SP, 05508-000, Brazil.
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Abourehab MA, Ansari MJ, Singh A, Hassan A, Abdelgawad MA, Shrivastav P, Abualsoud BM, Amaral LS, Pramanik S. Cubosomes as an emerging platform for drug delivery: a state-of-the-art review. J Mater Chem B 2022; 10:2781-2819. [DOI: 10.1039/d2tb00031h] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lipid-based drug delivery nanoparticles, including non-lamellar type, mesophasic nanostructured materials of lyotropic liquid crystals (LLCs), have been a topic of interest for researchers for their applications in encapsulation of drugs...
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Bala R, Sindhu RK, Kaundle B, Madaan R, Cavalu S. The prospective of liquid crystals in nano formulations for drug delivery systems. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shete A, Nadaf S, Doijad R, Killedar S. Liquid Crystals: Characteristics, Types of Phases and Applications in Drug Delivery. Pharm Chem J 2021. [DOI: 10.1007/s11094-021-02396-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Al-mahallawi AM, Abdelbary AA, El-Zahaby SA. Norfloxacin loaded nano-cubosomes for enhanced management of otitis externa: In vitro and in vivo evaluation. Int J Pharm 2021. [DOI: https://doi.org/10.1016/j.ijpharm.2021.120490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Al-Mahallawi AM, Abdelbary AA, El-Zahaby SA. Norfloxacin loaded nano-cubosomes for enhanced management of otitis externa: In vitro and in vivo evaluation. Int J Pharm 2021; 600:120490. [PMID: 33744451 DOI: 10.1016/j.ijpharm.2021.120490] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 02/21/2021] [Accepted: 03/10/2021] [Indexed: 02/07/2023]
Abstract
The research's goal is to design and formulate nano-structured cubosomes loaded with norfloxacin (NFX)formanagement of otitis externa. In this study, glyceryl monooleate (GMO) as lipid phase, Cremophor EL as surfactant and either Pluronic F108 or Pluronic F127 as stabilizer were the used ingredients. The nano-cubosomal formulation "CUB 1" (its dispersed phase is composed of GMO (95%), Cremophor EL (2.5%) and Pluronic F108 (2.5%)) was the best achieved one. It had small particles size (216.75 ± 2.47 nm), good polydispersity index (0.339 ± 0.012) and acceptable zeta potential (-41.2 ± 2.262 mV). Images obtained after transmission electron microscopy examination ensured nearly cubic shape of formed nanoparticles with excellent dispersibility. Moreover, micrographs of rabbit ear skin specimens examined by confocal laser microscopy ensured good permeation capability of nano-structured cubosomes.In addition, in vivoskin deposition results revealed that higher amount of NFX was deposited in the rabbit ear skin throughout the study period (10 h) compared to drug suspension. Additionally, histopathological results proved that NFX loaded cubosomes can be safely applied topically on ear skin without any signs of inflammation nor skin irritation. Accordingly, these results anticipated the nano-structured cubosomal capabilities as a favorable nano-carrier for dermal NFX delivery to external ear skin for enhancing the management of otitis externa.
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Affiliation(s)
- Abdulaziz M Al-Mahallawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Giza, Egypt
| | - Aly A Abdelbary
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt; School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, Cairo, Egypt
| | - Sally A El-Zahaby
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt.
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Kawai M, Ibaraki H, Takashima Y, Kanazawa T, Okada H. Development of a Liquid Crystal Formulation that Can Penetrate the Stratum Corneum for Intradermal Delivery of Small Interfering RNA. Mol Pharm 2021; 18:1038-1047. [PMID: 33395310 DOI: 10.1021/acs.molpharmaceut.0c00997] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Topical delivery of small interfering RNA (siRNA) can be an attractive method for the treatment of skin diseases and improving the quality of life of patients. However, it is difficult for siRNA to pass through the two major barriers of the skin: the stratum corneum (SC) and tight junctions. We have previously reported that atopic dermatitis of skin without the SC can be efficiently treated by the intradermal administration of trans-activator of transcription (Tat) peptide and AT1002 (tight junction opening peptide). However, novel drug delivery systems are needed for effective SC penetration. Therefore, in the present study, we aimed to develop a lyotropic liquid crystalline (LC) system containing Tat and AT1002 for effective siRNA penetration through the SC. An LC formulation was prepared using selachyl alcohol and purified water, and its skin penetration ability was evaluated. No fluorescence was observed in mouse skin treated with a siRNA solution, as there was no intradermal localization of siRNA from naked siRNA. However, intradermal delivery of siRNA was remarkable and extensive with the LC formulation containing both Tat and AT1002. Semiquantitative analysis by brightness measurement revealed that the LC formulation containing both Tat and AT1002 had significantly enhanced intact skin permeability than other formulations. These results show that the functional peptides in the LC formulation increased SC penetration and intradermal delivery in the healthy skin. Therefore, this novel LC system may be useful in the treatment of various skin diseases.
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Affiliation(s)
- Misako Kawai
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Hisako Ibaraki
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yuuki Takashima
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Takanori Kanazawa
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.,School of Pharmaceutical Sciences, University of Shizuoka 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroaki Okada
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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13
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Mallya R, Desai J. A review on novel topical formulations of vitamins. JOURNAL OF REPORTS IN PHARMACEUTICAL SCIENCES 2021. [DOI: 10.4103/jrptps.jrptps_91_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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14
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Goto S, Setoguchi S, Nagata-Akaho N, Terada K, Watase D, Yamakawa H, Toki E, Koga M, Matsunaga K, Karube Y, Takata J. Ester derivatives of phyllohydroquinone effectively deliver the active form of vitamin K 1 topically, owing to their non-photosensitivity. Eur J Pharm Sci 2020; 155:105519. [PMID: 32822810 DOI: 10.1016/j.ejps.2020.105519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/12/2020] [Accepted: 08/17/2020] [Indexed: 11/28/2022]
Abstract
Topical application of phylloquinone (PK) is beneficial to the skin; however, its topical use is limited in Europe owing to its photosensitive properties such as photodegradation and phototoxicity. We evaluated the suitability of ester derivatives of phyllohydroquinone (PKH), the active form of PK, for topical application to overcome the abovementioned problems of PK. We used the PKH derivatives PKH-1,4-bis-N,N-dimethylglycinate hydrochloride (PKH-DMG) and PKH-1,4-bis-hemisuccinate (PKH-SUC) for our studies. Photostability was determined by measuring the residual concentration after irradiation with artificial sunlight and multi-wavelength light. Phototoxicity after ultraviolet A (UVA) irradiation was assessed by measuring drug-induced singlet oxygen and intracellular reactive oxygen species (ROS) generation, and cell viability of a human epidermal keratinocyte cell line (HaCaT). Delivery of PKH into HaCaT cells was assessed by measuring PK epoxide (PKO) levels. The PKH derivatives showed higher photostability than PK. After UVA irradiation, PK induced high singlet oxygen levels and intracellular ROS generation, and reduced cell viability, whereas the PKH derivatives showed no effects. The PKH derivatives increased intracellular PKO levels. AUCPKO(0-72 h) values after PKH-DMG and PKH-SUC treatments were 0.741- and 22.9-fold higher than that after PK treatment, respectively. In conclusion, PKH derivatives act as PKH prodrugs and are suitable for topical application without the need for special protection from light.
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Affiliation(s)
- Shotaro Goto
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Shuichi Setoguchi
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Nami Nagata-Akaho
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kazuki Terada
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Daisuke Watase
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Hirofumi Yamakawa
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Erina Toki
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Mitsuhisa Koga
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | | | - Yoshiharu Karube
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Jiro Takata
- Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan.
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Fiume MM, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler DC, Marks JG, Shank RC, Slaga TJ, Snyder PW, Gill LJ, Heldreth B. Safety Assessment of Monoglyceryl Monoesters as Used in Cosmetics. Int J Toxicol 2020; 39:93S-126S. [PMID: 33203266 DOI: 10.1177/1091581820966951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The Expert Panel for Cosmetic Ingredient Safety (Panel) assessed the safety of 44 monoglyceryl monoesters that are structurally constituted as the esterification products of glycerin and carboxylic acids (the majority of which are fatty acids); 36 of these monoesters were previously reviewed by the Panel, and 8 are reviewed herein for the first time. Most of the monoglyceryl monoesters have several reported functions in cosmetics, but the most common function among the ingredients is skin conditioning agent; a few are reported to function only as surfactant-emulsifying agents. The Panel reviewed relevant new data, including frequency and concentration of use and considered the data from previous Cosmetic Ingredient Review reports. The Panel concluded that these ingredients are safe in cosmetics in the present practices of use and concentration described in this safety assessment.
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Preparation and Evaluation of Cubosomes/Cubosomal Gels for Ocular Delivery of Beclomethasone Dipropionate for Management of Uveitis. Pharm Res 2020; 37:198. [PMID: 32968868 DOI: 10.1007/s11095-020-02857-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 06/10/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Topical corticosteroids administration is commonly used for management of various ocular conditions especially those affecting the anterior segment of the eye. Poor solubility and limited pre-corneal residence time result in insufficient drug penetration to the outer (cornea and conjunctival-scleral) coats of the eye. This study aimed to prepare and evaluate cubosomes for prolonging residence time and enhancing ocular bioavailability of BDP. METHODS GMO-cubosomes were prepared using the top-down technique. Two stabilizers were investigated: poloxamer 407 and solulan C24. Particle size, EE %, polarized-light microscopy, TEM, in vitro release, transcorneal permeation, BCOP, histopathology and in vivo evaluation for treatment of uveitis in a rabbits' model were studied. RESULTS The prepared cubosomes were of nano-sizes (100 nm - 278 nm); EE% was around 94%. The cubosomes were confirmed by visualizing the "Maltese crosses" textures. Transcorneal permeation was significantly (p < 0.05) improved, compared to BDP-suspension (the control formulation). The optimized cubosomes F1P was incorporated in CMC gel (Cubo-gel). The prepared Cubo-gel formulations showed better rheological characteristics and high ocular tolerability. Superior anti-inflammatory properties were recorded for the Cubo-gel for treatment of endotoxin-induced uveitis in the rabbit model when compared to the control BDP-suspension. CONCLUSIONS Transcorneal permeation parameters Papp and flux and AUC0-10h markedly enhanced by up to 4-, 5.8-and 5.5-fold respectively, compared to the control BDP-suspension formulation. This study suggested that cubosomes/Cubo-gel could be an auspicious ocular delivery system for BDP that was able to effectively treat uveitis (a disease of the posterior segment of the eye).
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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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Vats M, Bhardwaj S, Chhabra A. Green Synthesis of Copper Oxide Nanoparticles using Cucumis Sativus (Cucumber) Extracts and their Bio-Physical and Biochemical Characterization for Cosmetic and Dermatologic Applications. Endocr Metab Immune Disord Drug Targets 2020; 21:726-733. [PMID: 32628604 DOI: 10.2174/1871530320666200705212107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND & OBJECTIVE Nanoparticles are used in cosmetic and dermatologic products, due to better skin penetration properties. Incorporation of natural products exhibiting medicinal properties in nano-preparations could significantly improve the efficacy of these products and improve the quality of life without the side effects of synthetic formulations. METHODS We here report the green synthesis of Copper Oxide nanoparticles, using Cucumber extract, and their detailed bio-physical and bio-chemical characterization. RESULTS These Copper Oxide-Cucumber nanoparticles exhibit significant anti-bacterial and anti-fungal properties, Ultra Violet-radiation protection ability and reactive-oxygen species inhibition properties. Importantly, these nanoparticles do not exhibit significant cellular toxicity and, when incorporated in skin cream, exhibit skin rejuvenating properties. CONCLUSION Our findings have implications for nanoparticle-based cosmetics and dermatologic applications.
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Affiliation(s)
- Monika Vats
- Department of Chemistry, Amity School of Applied Sciences (ASAS), Amity University Haryana (AUH), Manesar, Gurugram, Haryana, India
| | - Shruti Bhardwaj
- Department of Chemistry, Amity School of Applied Sciences (ASAS), Amity University Haryana (AUH), Manesar, Gurugram, Haryana, India
| | - Arvind Chhabra
- Stem Cell Institute, Amity University Haryana (AUH), Manesar, Gurugram, Haryana, India
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Chizenga EP, Abrahamse H. Nanotechnology in Modern Photodynamic Therapy of Cancer: A Review of Cellular Resistance Patterns Affecting the Therapeutic Response. Pharmaceutics 2020; 12:pharmaceutics12070632. [PMID: 32640564 PMCID: PMC7407821 DOI: 10.3390/pharmaceutics12070632] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/23/2020] [Accepted: 06/30/2020] [Indexed: 12/23/2022] Open
Abstract
Photodynamic therapy (PDT) has emerged as a potential therapeutic option for most localized cancers. Its high measure of specificity and minimal risk of side effects compared to other therapies has put PDT on the forefront of cancer research in the current era. The primary cause of treatment failure and high mortality rates is the occurrence of cancer resistance to therapy. Hence, PDT is designed to be selective and tumor-specific. However, because of complex biological characteristics and cell signaling, cancer cells have shown a propensity to acquire cellular resistance to PDT by modulating the photosensitization process or its products. Fortunately, nanotechnology has provided many answers in biomedical and clinical applications, and modern PDT now employs the use of nanomaterials to enhance its efficacy and mitigate the effects of acquired resistance. This review, therefore, sought to scrutinize the mechanisms of cellular resistance that affect the therapeutic response with an emphasis on the use of nanomaterials as a way of overriding cancer cell resistance. The resistance mechanisms that have been reported are complex and photosensitizer (PS)-specific. We conclude that altering the structure of PSs using nanotechnology is an ideal paradigm for enhancing PDT efficacy in the presence of cellular resistance.
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Nasr M, Younes H, Abdel-Rashid RS. Formulation and evaluation of cubosomes containing colchicine for transdermal delivery. Drug Deliv Transl Res 2020; 10:1302-1313. [PMID: 32399604 DOI: 10.1007/s13346-020-00785-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Gout is a common inflammatory disease that is characterized by the deposition of serum urate crystals in the synovial fluids and joints. In spite of high efficiency of colchicine (COL) in treatment of gout, it has potential side effects associated with its oral administration. This study was aimed to enhance COL bioavailability and minimize associated side effects through transdermal delivery of COL-loaded cubosomes. Eight cubosomal dispersions were prepared according to Box-Behnken factorial design and the effect of COL, glyceryl monooleate (GMO), and surfactant (P407) concentrations on particle size distribution, zeta potential, and entrapment efficiency were assessed. The results revealed that the optimum formula exhibited a mean particle size of 73.07 ± 2.18 nm and entrapped 32.40 ± 2.33% of COL. The influence of transdermal application of COL cubosomal gel on the in vivo absorption of the drug was studied in rats compared with oral COL solution. The results of in vivo study showed that transdermal application of COL cubosomal gel significantly improves the drug absorption compared with oral COL solution, with evidence of a relative bioavailability of 4.6 times greater than that of oral COL solution. In conclusion, transdermal application of COL cubosomal gel may be a promising delivery system for enhancing the bioavailability of COL. Graphical abstract.
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Affiliation(s)
- Mohamed Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo, 11790, Egypt. .,Department of Pharmaceutics, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt.
| | - Hassan Younes
- Hi Pharm for Manufacturing Pharmaceuticals and Chemicals, Obour, Egypt
| | - Rania S Abdel-Rashid
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo, 11790, Egypt
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Samadi N, Aberoomand Azar P, Waqif Husain S, Maibach HI, Nafisi S. Experimental design in formulation optimization of vitamin K1 oxide-loaded nanoliposomes for skin delivery. Int J Pharm 2020; 579:119136. [DOI: 10.1016/j.ijpharm.2020.119136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/18/2020] [Accepted: 02/10/2020] [Indexed: 01/26/2023]
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Lin SY. Thermoresponsive gating membranes embedded with liquid crystal(s) for pulsatile transdermal drug delivery: An overview and perspectives. J Control Release 2019; 319:450-474. [PMID: 31901369 DOI: 10.1016/j.jconrel.2019.12.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/27/2019] [Accepted: 12/28/2019] [Indexed: 01/08/2023]
Abstract
Due to the circadian rhythm regulation of almost every biological process in the human body, physiological and biochemical conditions vary considerably over the course of a 24-h period. Thus, optimal drug delivery and therapy should be effectively controlled to achieve the desired therapeutic plasma concentrations and therapeutic drug responses at the required time according to chronopharmacological concepts, rather than continuous maintenance of constant drug concentrations for an extended time period. For many drugs, it is not always necessary to constantly deliver a drug into the human body under disease conditions due to rhythmic variations. Pulsatile drug delivery systems (PDDSs) have been receiving more attention in pharmaceutical development by providing a predetermined lag period, followed by a fast or rate-controlled drug release after application. PDDSs are characterized by a programmed drug release, which may release a drug at repeatable pulses to match the biological and clinical needs of a given disease therapy. This review article focuses on thermoresponsive gating membranes embedded with liquid crystals (LCs) for transdermal drug delivery using PDDS technology. In addition, the principal rationale and the advanced approaches for the use of PDDSs, the marketed products of chronotherapeutic DDSs with pulsatile function designed by various PDDS technologies, pulsatile drug delivery designed with thermoresponsive polymers, challenges and opportunities of transdermal drug delivery, and novel approaches of LC systems for drug delivery are reviewed and discussed. A brief overview of all academic research articles concerning single LC- or binary LC-embedded thermoresponsive membranes with a switchable on-off permeation function through topical application by an external temperature control, which may modulate the dosing interval and administration time according to the therapeutic needs of the human body, is also compiled and presented. In the near future, since thermal-based approaches have become a well-accepted method to enhance transdermal delivery of different water-soluble drugs and macromolecules, a combination of the thermal-assisted approach with thermoresponsive LCs membranes will have the potential to improve PDDS applications but still poses a great challenge.
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Affiliation(s)
- Shan-Yang Lin
- Laboratory of Pharmaceutics and Biopharmaceutics, Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, No.306, Yuanpei Street, Hsin Chu 30015, Taiwan.
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Shan QQ, Jiang XJ, Wang FY, Shu ZX, Gui SY. Cubic and hexagonal liquid crystals as drug carriers for the transdermal delivery of triptolide. Drug Deliv 2019; 26:490-498. [PMID: 31081409 PMCID: PMC6522916 DOI: 10.1080/10717544.2019.1602796] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/26/2019] [Accepted: 03/30/2019] [Indexed: 12/11/2022] Open
Abstract
The purpose of this study was to develop and evaluate triptolide-loaded cubic and hexagonal liquid crystals for transdermal drug delivery systems (TDDSs). We prepared and characterized triptolide-loaded lyotropic liquid crystals and evaluated for their percutaneous permeation properties in vitro and in vivo. We then used the adjuvant arthritic rat model and HaCaT cells to analyze the pharmacodynamics and conduct cell-stimulating studies of these liquid crystals. The optimized preparations were identified as cubic and hexagonal phase structures, respectively. Moreover, the in vitro percutaneous penetration studies demonstrated that compared to the homemade triptolide gel, cubic and hexagonal liquid crystals could significantly increase the percutaneous cumulative penetration of drugs within 48 h. Besides, the results of skin-blood synchronous microdialysis showed that the triptolide concentration in skin was higher than that in blood, and the cubic and hexagonal liquid crystals significantly increased the bioavailability of triptolide. Triptolide-loaded cubic and hexagonal liquid crystals presented excellent anti-arthritic effects, alleviating paw swelling and inhibiting inflammation by downregulating the levels of TNF-α and IL-1β. In vitro cell-stimulating studies displayed that triptolide-loaded cubic and hexagonal liquid crystals exhibited no obvious toxicity, which exhibited that triptolide-loaded cubic and hexagonal liquid crystals were remarkable biocompatibility. Collectively, triptolide-loaded cubic and hexagonal liquid crystals represented a promising candidate for rheumatoid arthritis therapy.
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Affiliation(s)
- Qian-Qian Shan
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Xiao-Jing Jiang
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Fang-Yuan Wang
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Zi-Xuan Shu
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Shuang-Ying Gui
- Department of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
- Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei, China
- Engineering Technology Research Center for Modern Pharmaceutics of Anhui Province, Hefei, China
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Park SH, Kim JC. Monoolein cubosomes for enhancement of in vitro anti-oxidative efficacy of Bambusae Caulis in Taeniam extract toward carcinogenic fine dust-stimulated RAW 264.7 cells. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0333-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Håkansson J, Ringstad L, Umerska A, Johansson J, Andersson T, Boge L, Rozenbaum RT, Sharma PK, Tollbäck P, Björn C, Saulnier P, Mahlapuu M. Characterization of the in vitro, ex vivo, and in vivo Efficacy of the Antimicrobial Peptide DPK-060 Used for Topical Treatment. Front Cell Infect Microbiol 2019; 9:174. [PMID: 31192163 PMCID: PMC6548878 DOI: 10.3389/fcimb.2019.00174] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/08/2019] [Indexed: 12/26/2022] Open
Abstract
Antimicrobial peptides, also known as host defense peptides, have recently emerged as a promising new category of therapeutic agents for the treatment of infectious diseases. This study evaluated the preclinical in vitro, ex vivo, and in vivo antimicrobial activity, as well as the potential to cause skin irritation, of human kininogen-derived antimicrobial peptide DPK-060 in different formulations designed for topical delivery. We found that DPK-060 formulated in acetate buffer or poloxamer gel caused a marked reduction of bacterial counts of Staphylococcus aureus in vitro (minimum microbicidal concentration <5 μg/ml). We also found that DPK-060 in poloxamer gel significantly suppressed microbial survival in an ex vivo wound infection model using pig skin and in an in vivo mouse model of surgical site infection (≥99 or ≥94% reduction in bacterial counts was achieved with 1% DPK-060 at 4 h post-treatment, respectively). Encapsulation of DPK-060 in different types of lipid nanocapsules or cubosomes did not improve the bactericidal potential of the peptide under the applied test conditions. No reduction in cell viability was observed in response to administration of DPK-060 in any of the formulations tested. In conclusion, the present study confirms that DPK-060 has the potential to be an effective and safe drug candidate for the topical treatment of microbial infections; however, adsorption of the peptide to nanocarriers failed to show any additional benefits.
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Affiliation(s)
- Joakim Håkansson
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Lovisa Ringstad
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Anita Umerska
- Université de Lorraine, CITHEFOR, Nancy, France.,INSERM 1066, CNRS 6021, Université Bretagne Loire, MINT, UNIV Angers, Angers, France
| | - Jenny Johansson
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Therese Andersson
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Lukas Boge
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - René T Rozenbaum
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Prashant K Sharma
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Petter Tollbäck
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Camilla Björn
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Patrick Saulnier
- INSERM 1066, CNRS 6021, Université Bretagne Loire, MINT, UNIV Angers, Angers, France
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Fermentation of Cucumber Extract with Hydromagnesite as a Neutralizing Agent to Produce an Ingredient for Dermal Magnesium Products. MATERIALS 2019; 12:ma12101701. [PMID: 31130636 PMCID: PMC6566975 DOI: 10.3390/ma12101701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/20/2019] [Accepted: 05/24/2019] [Indexed: 11/17/2022]
Abstract
Magnesium is an essential element involved in various biochemical processes in the human body. In addition to oral supplementation, topical magnesium application is another conventional form of magnesium delivery for the treatment of skin diseases and muscle inflammation. Cucumber extract is a well-known superfood for human skin. It has been widely used in various skincare product lines because of its known benefits to the skin. The benefit of cucumber extract to the human skin would be significantly enhanced if the cucumber extract was fermented to convert the reducing sugars to beneficial organic acids. In this study, we developed a protocol for lactic acid fermentation of cucumber extract using hydromagnesite as a neutralizing agent. Various lactic acid bacteria were screened for fermentation of cucumber extract. The best fermenting performance was observed with Lactobacillus paracasei, which could convert approximately 13 g/L of reducing sugars (glucose and fructose) to lactic acid and a minor amount of acetic acid within 2 days of incubation. The final fermented cucumber extract contains magnesium in the form of salts of organic acids, which have high absorption ability and bioavailability. The product is a potent ingredient for producing dermal magnesium products.
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Prodrugs for Skin Delivery of Menahydroquinone-4, an Active Form of Vitamin K 2(20), Could Overcome the Photoinstability and Phototoxicity of Vitamin K 2(20). Int J Mol Sci 2019; 20:ijms20102548. [PMID: 31137618 PMCID: PMC6566782 DOI: 10.3390/ijms20102548] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/20/2019] [Accepted: 05/22/2019] [Indexed: 02/06/2023] Open
Abstract
The effective delivery of menahydroquinone-4 (MKH), an active form of menaquinone-4 (MK-4, vitamin K2(20)), to the skin is beneficial in the treatment of various skin pathologies. However, its delivery through the application of MK-4 to the skin is hampered due to the photoinstability and phototoxicity of MK-4. This study aimed to evaluate the potential of ester prodrugs of MKH for its delivery into the skin to avoid the abovementioned issues. The ester prodrugs, MKH 1,4-bis-N,N-dimethylglycinate hydrochloride (MKH-DMG) and MKH 1,4-bis-hemisuccinate (MKH-SUC), were prepared using our previously reported methods. Photostability was determined under artificial sunlight and multi-wavelength light irradiation, phototoxicity was determined by intracellular ROS formation and cell viability of UVA-irradiated human epidermal keratinocyte cells (HaCaT), and delivery of MKH into HaCaT cells was assessed by measuring menaquinone-4 epoxide (MKO) levels. MKH prodrugs showed higher photostability than MK-4. Although MK-4 induced cellular ROS and reduced cell viability after UVA irradiation, MKH prodrugs did not affect either ROS generation or cell viability. MKH prodrugs enhanced intracellular MKO, indicating effective delivery of MKH and subsequent carboxylation activity. In conclusion, these MKH prodrugs show potential for the delivery of MKH into the skin without photoinstability and phototoxicity.
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Talaat SM, Elnaggar YSR, Abdalla OY. Lecithin Microemulsion Lipogels Versus Conventional Gels for Skin Targeting of Terconazole: In Vitro, Ex Vivo, and In Vivo Investigation. AAPS PharmSciTech 2019; 20:161. [PMID: 30969396 DOI: 10.1208/s12249-019-1374-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/19/2019] [Indexed: 11/30/2022] Open
Abstract
Topical treatment of fungal infections has several superiorities over oral treatment. However, the greatest challenge for dermal delivery is the stratum corneum which is considered an effective barrier for penetration of most antifungal drugs into deeper skin layers. Terconazole (Tr), which is the first marketed triazole antifungal, was reported to be one of the most active azoles against vaginal candidiasis. Nevertheless, our work group is the first to investigate the potential of Tr in the treatment of skin mycosis via integration into lecithin microemulsion-based lipogels (LMBGs). The microemulsion regions of the investigated systems were detected through ternary phase diagrams. The in vitro characterization studies revealed promising physicochemical merits for the selected LMBGs as well as satisfactory in vitro antifungal activity. The current research work was endeavored to investigate the potential of such novel Tr-loaded LMBGs in comparison with conventional gels. Ex vivo permeation and retention studies in addition to in vivo deposition study showed a significant improvement in the permeability of Tr through animal skin from LMBGs compared to other conventional gels. Furthermore, the optimized microemulsion lipogel proved to be safe and a nonirritant to experimental animals through the acute sensitivity study and histological skin examination. Overall, lecithin-based microemulsion lipogels of different composition confirmed their potential as interesting nanocarriers for skin delivery of terconazole compared to current therapy.
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Uchino T, Kato S, Hatta I, Miyazaki Y, Suzuki T, Sasaki K, Kagawa Y. Study on the drug permeation mechanism from flurbiprofen-loaded glyceryl monooleyl ether-based lyotropic liquid crystalline nanoparticles across the skin: Synchrotron X-ray diffraction and confocal laser scanning microscopy study. Int J Pharm 2019; 555:259-269. [DOI: 10.1016/j.ijpharm.2018.11.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 01/09/2023]
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Wan J, Wang SM, Gui ZP, Yang ZZ, Shan QQ, Chu XQ, Gui SY, Yang Y. Phytantriol-based lyotropic liquid crystal as a transdermal delivery system. Eur J Pharm Sci 2018; 125:93-101. [DOI: 10.1016/j.ejps.2018.09.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 09/25/2018] [Accepted: 09/25/2018] [Indexed: 12/14/2022]
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Boge L, Hallstensson K, Ringstad L, Johansson J, Andersson T, Davoudi M, Larsson PT, Mahlapuu M, Håkansson J, Andersson M. Cubosomes for topical delivery of the antimicrobial peptide LL-37. Eur J Pharm Biopharm 2018; 134:60-67. [PMID: 30445164 DOI: 10.1016/j.ejpb.2018.11.009] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 11/07/2018] [Accepted: 11/12/2018] [Indexed: 12/31/2022]
Abstract
In this study, the use of cubosomes for topical delivery of the antimicrobial peptide (AMP) LL-37 was investigated. Topical delivery of AMPs is of great interest for treatment of skin infections caused by bacteria, such as Staphylococcus aureus. AMP containing cubosomes were produced by three different preparation protocols and compared: (i) pre-loading, where LL-37 was incorporated into a liquid crystalline gel, which thereafter was dispersed into nanoparticles, (ii) post-loading, where LL-37 was let to adsorb onto pre-formed cubosomes, and (iii) hydrotrope-loading, where LL-37 was incorporated during the spontaneously formed cubosomes in an ethanol/glycerol monooleate mixture. Particle size and size distribution were analyzed using dynamic light scattering (DLS), liquid crystalline structure by small angle x-ray scattering (SAXS) and release of LL-37 by a fluorescamine assay. Proteolytic protection of LL-37 as well as bactericidal effect after enzyme exposure was investigated. The skin irritation potential of cubosomes was examined by an in vitro epidermis model. Finally, the bacterial killing property of the cubosomes was examined by an ex vivo pig skin wound infection model with Staphylococcus aureus. Data showed that a high loading of LL-37 induced formation of vesicles in case of cubosomes prepared by sonication (pre-loading). No release of LL-37 was observed from the cubosomes, indicating strong association of the peptide to the particles. Proteolysis studies showed that LL-37 was fully protected against enzymatic attacks while associated with the cubosomes, also denoting strong association of the peptide to the particles. As a consequence, bactericidal effect after enzyme exposure remained, compared to pure LL-37 which was subjected to proteolysis. No skin irritation potential of the cubosomes was found, thus enabling for topical administration. The ex vivo wound infection model showed that LL-37 in pre-loaded cubosomes killed bacteria most efficient.
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Affiliation(s)
- Lukas Boge
- RISE Research Institutes of Sweden, Box 857 SE-50115, Borås, Sweden; Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Göteborg, Sweden.
| | | | - Lovisa Ringstad
- RISE Research Institutes of Sweden, Box 857 SE-50115, Borås, Sweden
| | - Jenny Johansson
- RISE Research Institutes of Sweden, Box 857 SE-50115, Borås, Sweden
| | | | - Mina Davoudi
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, Sweden
| | | | - Margit Mahlapuu
- Promore Pharma AB, Karolinska Institutet Science Park, Solna, Sweden; The Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Joakim Håkansson
- RISE Research Institutes of Sweden, Box 857 SE-50115, Borås, Sweden
| | - Martin Andersson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Göteborg, Sweden
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Monoolein liquid crystalline phases for topical delivery of crocetin. Colloids Surf B Biointerfaces 2018; 171:67-74. [DOI: 10.1016/j.colsurfb.2018.07.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/14/2018] [Accepted: 07/05/2018] [Indexed: 01/12/2023]
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Temperature triggering of kinetically trapped self-assemblies in citrem-phospholipid nanoparticles. Chem Phys Lipids 2018; 216:30-38. [DOI: 10.1016/j.chemphyslip.2018.09.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/28/2018] [Accepted: 09/05/2018] [Indexed: 11/22/2022]
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Badie H, Abbas H. Novel small self-assembled resveratrol-bearing cubosomes and hexosomes: preparation, charachterization, and ex vivo permeation. Drug Dev Ind Pharm 2018; 44:2013-2025. [DOI: 10.1080/03639045.2018.1508220] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Hany Badie
- Pharmaceutics and Industrial Pharmacy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Haidy Abbas
- Pharmaceutics Department, Damanhour University, Damanhour, Egypt
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Nonlamellar liquid crystals: a new paradigm for the delivery of small molecules and bio-macromolecules. Ther Deliv 2018; 9:667-689. [DOI: 10.4155/tde-2018-0038] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The aim of this article is to collate the recent developments in the field of drug delivery, medical therapeutics and diagnostics specifically involving the nonlamellar liquid crystalline (NLC) systems. This review highlights different NLC phases having cubic, hexagonal and sponge internal structures, and their application in the field of drug delivery, such as dose reduction, toxicity reduction and therapeutic efficacy enhancement either in the form of nanoparticles, colloidal dispersion or gels. In addition, application of NLC systems as vehicles for peptides, proteins and as a theranostic system in cancer and other disease conditions is also elaborated, which is a growing platform of interest. Overall, the present review gives us a complete outlook on applications of NLC systems in the field of medicine.
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El-Enin HA, AL-Shanbari AH. Nanostructured liquid crystalline formulation as a remarkable new drug delivery system of anti-epileptic drugs for treating children patients. Saudi Pharm J 2018; 26:790-800. [PMID: 30202219 PMCID: PMC6128721 DOI: 10.1016/j.jsps.2018.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 04/02/2018] [Indexed: 11/17/2022] Open
Abstract
PURPOSE Development of a new dosage-form of antiepileptic-drugs appropriated for children. METHODS Clonazepam (Cl) was formulated as cubosomal-gel (cub-gel) to be used as a patch reservoir through transdermal-route. Cubosomes prepared using glycerol-mono-oleate(GMO)/Pluronic-F127(PF127) mixture. An actual-statistical design was used to investigate the effect of different stabilizing agents (Ethanol and PVA) and surfactant concentration on cubosomes' particle size and entrapping-efficiency. The selected formulae were evaluated by testing particle-morphology, in vitro drug release and stability. Cub-gel was prepared using selected cubosome formulae. The optimal cub-gel subjected to in vitro dissolution, ex-vivo permeation and skin deposition studies followed by studying its pharmacological effect. RESULTS Using PVA or Et as stabilizers with PF127 significantly decreases the average cubosomes'PS (352 ± 2.8 and 264 ± 2.16 nm) and increases EE (58.97 ± 4.57% and 54.21 ± 3.89%). Cubosomes increase the initial release rate of Cl to ensure rapid therapeutic effect (37.39% and 46.04% in the first hour) followed by a prolonged release till 4 h. Cub-gel containing PVA showed significantly higher Cl-transdermal permeation when compared to Cl-suspension. Moreover, increases the retention-time (89.57% at 48 h) and skin-deposition up to 6-times. It also reduces the epileptic seizures and alters the behavioral parameters induced by pilocarpine. CONCLUSIONS Cubosomal-gel could be considered an innovative dosage-form for Cl through the transdermal route.
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Key Words
- Antiepileptic
- CNS, Central Nervous System
- Cl, Clonazepam
- Clonazepam
- Cubogels
- Cubosomes
- Cubs, cubosomes
- EE, entrapping efficiency
- Epilepsy
- Et, ethanol
- GMO, glycerol-mono-oleate
- I.P, Intraperitoneal injections
- PBS, phosphate buffer saline
- PCS, peripheral cholinergic signs
- PDI, polydispersity index
- PF127, Poloxamer 407
- PS, particle size
- PVA, polyvinyl alcohol
- SMS, stereotyped movements signs
- TDDS, Transdermal Drug Delivery System
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Affiliation(s)
- Hadel Abo El-Enin
- Pharmaceutics Department, National Organization of Drug Control and Research (NODCAR), Giza, Egypt
- Pharmaceutics Department, Faculty of Pharmacy, Taif University, Taif, Saudi Arabia
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Secondary Plant Metabolites for Sun Protective Cosmetics: From Pre-Selection to Product Formulation. COSMETICS 2018. [DOI: 10.3390/cosmetics5020032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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van 't Hag L, Gras SL, Conn CE, Drummond CJ. Lyotropic liquid crystal engineering moving beyond binary compositional space - ordered nanostructured amphiphile self-assembly materials by design. Chem Soc Rev 2018; 46:2705-2731. [PMID: 28280815 DOI: 10.1039/c6cs00663a] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Ordered amphiphile self-assembly materials with a tunable three-dimensional (3D) nanostructure are of fundamental interest, and crucial for progressing several biological and biomedical applications, including in meso membrane protein crystallization, as drug and medical contrast agent delivery vehicles, and as biosensors and biofuel cells. In binary systems consisting of an amphiphile and a solvent, the ability to tune the 3D cubic phase nanostructure, lipid bilayer properties and the lipid mesophase is limited. A move beyond the binary compositional space is therefore required for efficient engineering of the required material properties. In this critical review, the phase transitions upon encapsulation of more than 130 amphiphilic and soluble additives into the bicontinuous lipidic cubic phase under excess hydration are summarized. The data are interpreted using geometric considerations, interfacial curvature, electrostatic interactions, partition coefficients and miscibility of the alkyl chains. The obtained lyotropic liquid crystal engineering design rules can be used to enhance the formulation of self-assembly materials and provides a large library of these materials for use in biomedical applications (242 references).
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Affiliation(s)
- Leonie van 't Hag
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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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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Hutton ARJ, Quinn HL, McCague PJ, Jarrahian C, Rein-Weston A, Coffey PS, Gerth-Guyette E, Zehrung D, Larrañeta E, Donnelly RF. Transdermal delivery of vitamin K using dissolving microneedles for the prevention of vitamin K deficiency bleeding. Int J Pharm 2018; 541:56-63. [PMID: 29471143 PMCID: PMC5884307 DOI: 10.1016/j.ijpharm.2018.02.031] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/15/2018] [Accepted: 02/17/2018] [Indexed: 11/20/2022]
Abstract
Vitamin K deficiency within neonates can result in vitamin K deficiency bleeding. Ensuring that newborns receive vitamin K is particularly critical in places where access to health care and blood products and transfusions is limited. The World Health Organization recommends that newborns receive a 1 mg intramuscular injection of vitamin K at birth. Evidence from multiple surveillance studies shows that the introduction of vitamin K prophylaxis reduces the incidence of vitamin K deficiency bleeding. Despite these recommendations, coverage of vitamin K prophylactic treatment in low-resource settings is limited. An intramuscular injection is the most common method of vitamin K administration in neonates. In low- and middle-income countries, needle sharing may occur, which may result in the spread of bloodborne diseases. The objective of our study was to investigate the manufacture of microneedles for the delivery of vitamin K. Following microneedle fabrication, we performed insertion studies to assess the microneedle’s mechanical properties. Results indicate that vitamin K in a microneedle array was successfully delivered in vitro across neonatal porcine skin with 1.80 ± 0.08 mg delivered over 24 h. Therefore, this initial study shows that microneedles do have the potential to prevent vitamin K deficiency bleeding. Future work will assess delivery of vitamin K in microneedle array in vivo.
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Affiliation(s)
- Aaron R J Hutton
- School of Pharmacy, Queen's University, Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Helen L Quinn
- School of Pharmacy, Queen's University, Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Paul J McCague
- School of Pharmacy, Queen's University, Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | | | | | | | | | - Darin Zehrung
- PATH, 2201 Westlake Avenue, Suite 200, Seattle, WA 98121, USA.
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University, Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University, Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom.
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Musa MN, David SR, Zulkipli IN, Mahadi AH, Chakravarthi S, Rajabalaya R. Development and evaluation of exemestane-loaded lyotropic liquid crystalline gel formulations. ACTA ACUST UNITED AC 2018; 7:227-239. [PMID: 29435430 PMCID: PMC5801534 DOI: 10.15171/bi.2017.27] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/30/2017] [Accepted: 08/31/2017] [Indexed: 01/03/2023]
Abstract
Introduction: The use of liquid crystalline (LC) gel formulations for drug delivery has considerably improved the current delivery methods in terms of bioavailability and efficacy. The purpose of this study was to develop and evaluate LC gel formulations to deliver the anti-cancer drug exemestane through transdermal route. Methods: Two LC gel formulations were prepared by phase separation coacervation method using glyceryl monooleate (GMO), Tween 80 and Pluronic® F127 (F127). The formulations were characterized with regard to encapsulation efficiency (EE), vesicle size, Fourier transform infrared (FTIR) spectroscopy, surface morphology (using light and fluorescence microscopy), in vitro release, ex vivo permeation, in vitro effectiveness test on MDA-MB231 cancer cell lines and histopathological analysis. Results: Results exhibited that the EE was 85%-92%, vesicle size was 119.9-466.2 nm while morphology showed spherical vesicles after hydration. An FTIR result also revealed that there was no significant shift in peaks corresponding to Exemestane and excipients. LC formulations release the drug from cellulose acetate and Strat-MTM membrane from 15%-88.95%, whereas ex vivo permeation ranges from 37.09-63%. The in vitro effectiveness study indicated that even at low exemestane concentrations (12.5 and 25 μg/mL) the formulations were able to induce cancer cell death, regardless of the surfactant used. Histopathological analysis thinning of the epidermis as the formulations penetrate into the intercellular regions of squamous cells. Conclusion: The results conjectured that exemestane could be incorporated into LC gels for the transdermal delivery system and further preclinical studies such as pharmacokinetic and pharmacodynamic studies will be carried out with suitable animal models.
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Affiliation(s)
- Muhammad Nuh Musa
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Bandar Seri Begawan BE 1410, Brunei Darussalam
| | - Sheba Rani David
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Bandar Seri Begawan BE 1410, Brunei Darussalam
| | - Ihsan Nazurah Zulkipli
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Bandar Seri Begawan BE 1410, Brunei Darussalam
| | - Abdul Hanif Mahadi
- Centre for Advanced Material and Energy Sciences (CAMES), Universiti Brunei Darussalam, Bandar Seri Begawan BE 1410, Brunei Darussalam
| | - Srikumar Chakravarthi
- School of Medicine, Perdana University, Jalan MAEPS Perdana, 43400 Serdang, Selangor, Malaysia
| | - Rajan Rajabalaya
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Bandar Seri Begawan BE 1410, Brunei Darussalam
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Huang Y, Gui S. Factors affecting the structure of lyotropic liquid crystals and the correlation between structure and drug diffusion. RSC Adv 2018; 8:6978-6987. [PMID: 35540315 PMCID: PMC9078419 DOI: 10.1039/c7ra12008g] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 02/05/2018] [Indexed: 12/11/2022] Open
Abstract
Lyotropic liquid crystals (LLCs) formed by the self-assembly of amphiphilic molecules in a solvent (usually water) have attracted increasingly greater attention in the last few decades, especially the lamellar phase (Lα), the reversed bicontinuous cubic phase (Q2) and the reversed hexagonal phase (H2). Such phases offer promising prospects for encapsulation of a wide range of target molecules with various sizes and polarities owing to the unique internal structures. Also, different structures of mesophases can give rise to different diffusion coefficients. The bicontinuous cubic phase and the hexagonal phase have been demonstrated to control and sustain the release of active molecules. Furthermore, the structures are susceptible to many factors such as water content, temperature, pH, the presence of additives etc. Many researchers have been studying these influencing factors in order to accurately fabricate the desired phase. In this paper, we give a review of the characteristics of different structures of liquid crystalline phases, the influencing factors on the phase transition of liquid crystals and the relationship between structures of LLC and drug diffusion. We hope our review will provide some insights into how to manipulate in a controlled manner the rate of incorporating and transferring molecules by altering the structure of lyotropic mesophases. Factors such as amphiphilic molecules , water content, temperature, pressure, light and magnetic field on the structures of LLCs.![]()
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Affiliation(s)
- Yiming Huang
- Department of Pharmacy
- Anhui University of Chinese Medicine
- Hefei
- China
| | - Shuangying Gui
- Department of Pharmacy
- Anhui University of Chinese Medicine
- Hefei
- China
- Institute of Pharmaceutics
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43
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Praça FSG, Medina WSG, Eloy JO, Petrilli R, Campos PM, Ascenso A, Bentley MVLB. Evaluation of critical parameters for in vitro skin permeation and penetration studies using animal skin models. Eur J Pharm Sci 2017; 111:121-132. [PMID: 28951120 DOI: 10.1016/j.ejps.2017.09.034] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 08/30/2017] [Accepted: 09/22/2017] [Indexed: 12/19/2022]
Abstract
In vitro skin permeation/penetration studies may be affected by many sources of variation. Herein, we aimed to investigate the major critical procedures of in vitro skin delivery studies. These experiments were performed with model drugs according to official guidelines. The influence of skin source on penetration studies was studied as well as the use of a cryopreservation agent on skin freezing evaluated by transepidermal water loss, electrical resistance, permeation/penetration profiles and histological changes of the skin. The best condition for tape stripping procedure was validated through the evaluation of the distribution of corneocytes, mass of stratum corneum (SC) removed and amount of protein removed using finger pressure, a 2kg weight and a roller. The interchangeability of the tape stripping procedures followed by the epidermis and dermis homogenate and the micrometric horizontal cryostat skin sectioning methods were also investigated, besides the effect of different formulations. Noteworthy, different skin sources were able to ensure reliable interchangeability for in vitro permeation studies. Furthermore, an increased penetration was obtained for stored frozen skin compared to fresh skin, even with the addition of a cryoprotectant agent. The best method for tape stripping was the finger pressure followed by the addition of a propylene glycol solvent leading to better SC removal. Finally, no significant difference was found in skin penetration studies performed by different methods suggesting their possible interchangeability.
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Affiliation(s)
- Fabíola Silva Garcia Praça
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040903 Ribeirão Preto, SP, Brazil.
| | | | - Josimar O Eloy
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040903 Ribeirão Preto, SP, Brazil.
| | - Raquel Petrilli
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040903 Ribeirão Preto, SP, Brazil.
| | - Patrícia Mazureki Campos
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040903 Ribeirão Preto, SP, Brazil.
| | - Andreia Ascenso
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, University of Lisbon, Portugal.
| | - Maria Vitória L B Bentley
- School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Avenida do Café, s/n, 14040903 Ribeirão Preto, SP, Brazil.
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Liang X, Chen YL, Jiang XJ, Wang SM, Zhang JW, Gui SY. HII mesophase as a drug delivery system for topical application of methyl salicylate. Eur J Pharm Sci 2017; 100:155-162. [DOI: 10.1016/j.ejps.2016.12.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 12/05/2016] [Accepted: 12/29/2016] [Indexed: 11/15/2022]
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Eriksen JG, Kaalund I, Clemmensen O, Overgaard J, Pfeiffer P. Placebo-controlled phase II study of vitamin K3 cream for the treatment of cetuximab-induced rash. Support Care Cancer 2017; 25:2179-2185. [DOI: 10.1007/s00520-017-3623-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 02/06/2017] [Indexed: 01/09/2023]
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Rajabalaya R, Musa MN, Kifli N, David SR. Oral and transdermal drug delivery systems: role of lipid-based lyotropic liquid crystals. DRUG DESIGN DEVELOPMENT AND THERAPY 2017; 11:393-406. [PMID: 28243062 PMCID: PMC5315216 DOI: 10.2147/dddt.s103505] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Liquid crystal (LC) dosage forms, particularly those using lipid-based lyotropic LCs (LLCs), have generated considerable interest as potential drug delivery systems. LCs have the physical properties of liquids but retain some of the structural characteristics of crystalline solids. They are compatible with hydrophobic and hydrophilic compounds of many different classes and can protect even biologicals and nucleic acids from degradation. This review, focused on research conducted over the past 5 years, discusses the structural evaluation of LCs and their effects in drug formulations. The structural classification of LLCs into lamellar, hexagonal and micellar cubic phases is described. The structures of these phases are influenced by the addition of surfactants, which include a variety of nontoxic, biodegradable lipids; these also enhance drug solubility. LLC structure influences drug localization, particle size and viscosity, which, in turn, determine drug delivery properties. Through several specific examples, we describe the applications of LLCs in oral and topical drug formulations, the latter including transdermal and ocular delivery. In oral LLC formulations, micelle compositions and the resulting LLC structures can determine drug solubilization and stability as well as intestinal transport and absorption. Similarly, in topical LLC formulations, composition can influence whether the drug is retained in the skin or delivered transdermally. Owing to their enhancement of drug stability and promotion of controlled drug delivery, LLCs are becoming increasingly popular in pharmaceutical formulations.
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Affiliation(s)
- Rajan Rajabalaya
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Brunei Darussalam
| | - Muhammad Nuh Musa
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Brunei Darussalam
| | - Nurolaini Kifli
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Brunei Darussalam
| | - Sheba R David
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Brunei Darussalam
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Structural Features and the Anti-Inflammatory Effect of Green Tea Extract-Loaded Liquid Crystalline Systems Intended for Skin Delivery. Polymers (Basel) 2017; 9:polym9010030. [PMID: 30970708 PMCID: PMC6431852 DOI: 10.3390/polym9010030] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 12/21/2016] [Accepted: 01/12/2017] [Indexed: 01/02/2023] Open
Abstract
Camellia sinensis, which is obtained from green tea extract (GTE), has been widely used in therapy owing to the antioxidant, chemoprotective, and anti-inflammatory activities of its chemical components. However, GTE is an unstable compound, and may undergo reactions that lead to a reduction or loss of its effectiveness and even its degradation. Hence, an attractive approach to overcome this problem to protect the GTE is its incorporation into liquid crystalline systems (LCS) that are drug delivery nanostructured systems with different rheological properties, since LCS have both fluid liquid and crystalline solid properties. Therefore, the aim of this study was to develop and characterize GTE-loaded LCS composed of polyoxypropylene (5) polyoxyethylene (20) cetyl alcohol, avocado oil, and water (F25E, F29E, and F32E) with different rheological properties and to determine their anti-inflammatory efficacy. Polarized light microscopy revealed that the formulations F25, F29, and F32 showed hexagonal, cubic, and lamellar liquid crystalline mesophases, respectively. Rheological studies showed that F32 is a viscous Newtonian liquid, while F25 and F29 are dilatant and pseudoplastic non-Newtonian fluids, respectively. All GTE-loaded LCS behaved as pseudoplastic with thixotropy; furthermore, the presence of GTE increased the S values and decreased the n values, especially in F29, indicating that this LCS has the most organized structure. Mechanical and bioadhesive properties of GTE-unloaded and -loaded LCS corroborated the rheological data, showing that F29 had the highest mechanical and bioadhesive values. Finally, in vivo inflammation assay revealed that the less elastic and consistent LCS, F25E and F32E presented statistically the same anti-inflammatory activity compared to the positive control, decreasing significantly the paw edema after 4 h; whereas, the most structured and elastic LCS, F29E, strongly limited the potential effects of GTE. Thereby, the development of drug delivery systems with suitable rheological properties may enhance GTE bioavailability, enabling its administration via the skin for the treatment of inflammation.
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48
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Abstract
Liquid crystals have been recently studied as novel drug delivery system. The reason behind this is their similarity to colloidal systems in living organisms. They have proven to be advantageous over Traditional, Dermal, Parentral and Oral Dosage forms. Liquid crystals are thermodynamically stable and possess long shelf life. Liquid crystals show bio adhesive properties and sustained release effects. Objective of this book chapter is to provide in-depth information of Pharmaceutical crystal technology. It shall deal with cubic and hexagonal liquid crystal and their applications in Drug delivery system.
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Kadhum WR, Sekiguchi S, Hijikuro I, Todo H, Sugibayashi K. A Novel Chemical Enhancer Approach for Transdermal Drug Delivery with C 17-Monoglycerol Ester Liquid Crystal-forming Lipid. J Oleo Sci 2017; 66:443-454. [DOI: 10.5650/jos.ess16204] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - Ichiro Hijikuro
- Farnex Incorporated, Tokyo Institute of Technology Yokohama Venture Plaza
| | - Hiroaki Todo
- Faculty of Pharmaceutical Sciences, Josai University
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50
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Elnaggar YS, Talaat SM, Bahey-El-Din M, Abdallah OY. Novel lecithin-integrated liquid crystalline nanogels for enhanced cutaneous targeting of terconazole: development, in vitro and in vivo studies. Int J Nanomedicine 2016; 11:5531-5547. [PMID: 27822033 PMCID: PMC5087767 DOI: 10.2147/ijn.s117817] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Terconazole (Tr) is the first marketed, most active triazole for vaginal candidiasis. Owing to poor skin permeation and challenging physicochemical properties, Tr was not employed for the treatment of cutaneous candidiasis. This is the first study to investigate the relevance of novel lecithin-integrated liquid crystalline nano-organogels (LCGs) to improve physicochemical characteristics of Tr in order to enable its dermal application in skin candidiasis. Ternary phase diagram was constructed using lecithin/capryol 90/water to identify the region of liquid crystalline organogel. The selected organogel possessed promising physicochemical characteristics based on particle size, rheological behavior, pH, loading efficiency, and in vitro antifungal activity. Microstructure of the selected organogel was confirmed by polarized light microscopy and transmission electron microscopy. Ex vivo and in vivo skin permeation studies revealed a significant 4.7- and 2.7-fold increase in the permeability of Tr-loaded LCG when compared to conventional hydrogel. Moreover, acute irritation study indicated safety and compatibility of liquid crystalline organogel to the skin. The in vivo antifungal activity confirmed the superiority of LCG over the conventional hydrogel for the eradication of Candida infection. Overall, lecithin-based liquid crystalline organogel confirmed its potential as an interesting dermal nanocarrier for skin targeting purpose.
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Affiliation(s)
- Yosra Sr Elnaggar
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University; Department of Pharmaceutics, Faculty of Pharmacy and Drug Manufacturing, Pharos University in Alexandria
| | - Sara M Talaat
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University
| | - Mohammed Bahey-El-Din
- Department of Microbiology and Immunology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Ossama Y Abdallah
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University
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