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Aroffu M, Manca ML, Pedraz JL, Manconi M. Liposome-based vaccines for minimally or noninvasive administration: an update on current advancements. Expert Opin Drug Deliv 2023; 20:1573-1593. [PMID: 38015659 DOI: 10.1080/17425247.2023.2288856] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/24/2023] [Indexed: 11/30/2023]
Abstract
INTRODUCTION Vaccination requires innovation to provide effective protection. Traditional vaccines have several drawbacks, which can be overcome with advanced technologies and different administration routes. Over the past 10 years, a significant amount of research has focussed on the delivery of antigens into liposomes due to their dual role as antigen-carrying systems and vaccine adjuvants able to increase the immunogenicity of the carried antigen. AREAS COVERED This review encompasses the progress made over the last 10 years with liposome-based vaccines designed for minimally or noninvasive administration, filling the gaps in previous reviews and providing insights on composition, administration routes, results achieved, and Technology Readiness Level of the most recent formulations. EXPERT OPINION Liposome-based vaccines administered through minimally or noninvasive routes are expected to improve efficacy and complacency of vaccination programs. However, the translation from lab-scale production to large-scale production and collaborations with hospitals, research centers, and companies are needed to allow new products to enter the market and improve the vaccination programs in the future.
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Affiliation(s)
- Matteo Aroffu
- Department of Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
| | - Maria Letizia Manca
- Department of Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
| | - José Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country (UPV/EHU), Vitoria-Gasteiz, Spain
- Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Vitoria-Gasteiz, Spain
- BioAraba, NanoBioCel research Group, Vitoria-Gasteiz, Spain
| | - Maria Manconi
- Department of Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
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Perra M, Lozano-Sánchez J, Leyva-Jiménez FJ, Segura-Carretero A, Pedraz JL, Bacchetta G, Muntoni A, De Gioannis G, Manca ML, Manconi M. Extraction of the antioxidant phytocomplex from wine-making by-products and sustainable loading in phospholipid vesicles specifically tailored for skin protection. Biomed Pharmacother 2021; 142:111959. [PMID: 34333288 DOI: 10.1016/j.biopha.2021.111959] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 12/17/2022] Open
Abstract
The present study is aimed at valorizing grape pomace, one of the most abundant winery-making by-products of the Mediterranean area, through the extraction of the main bioactive compounds from the skin of grape pomace and using them to manufacture innovative nanoformulations capable of both avoiding skin damages and promoting skincare. The phytochemicals were recovered through maceration in hydroethanolic solution. Catechin, quercetin, fisetin and gallic acid, which are known for their antioxidant power, were detected as the main compounds of the extract. Liposomes and phospholipid vesicles modified with glycerol or Montanov 82® or a combination of both, were used as carriers for the extract. The vesicles were small (~183 nm), slightly polydispersed (PI ≥ 0.28), and highly negatively charged (~-50 mV). The extract was loaded in high amounts in all vesicles (~100%) irrespective of their composition. The antioxidant activity of the extract, measured by using the DPPH (2,2-Diphenyl-1-picrylhydrazyl) test, was 84 ± 1%, and slightly increased when loaded into the vesicles (~89%, P < 0.05). The grape pomace extract loaded vesicles were highly biocompatible and able to protect fibroblasts (3T3) from the oxidative stress induced by hydrogen peroxide.
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Affiliation(s)
- Matteo Perra
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Jesús Lozano-Sánchez
- Department of Food Science and Nutrition, University of Granada, Campus Universitario s/n, 18071 Granada, Spain; Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Francisco-Javier Leyva-Jiménez
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain
| | - Antonio Segura-Carretero
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento s/n, E-18100 Granada, Spain; Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain
| | - Josè Luis Pedraz
- NanoBioCel Group, University of Basque Country, Paseo de la Universidad 7, 01006 Vitoria, Spain; Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Gianluigi Bacchetta
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy; Centre for the Conservation of Biodiversity (CCB), University of Cagliari, V.le Sant'Ignazio da Laconi 13, 09123 Cagliari, Italy
| | - Aldo Muntoni
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123 Cagliari, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza D'Armi 1, 09123 Cagliari, Italy
| | - Giorgia De Gioannis
- DICAAR - Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza D'Armi 1, 09123 Cagliari, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza D'Armi 1, 09123 Cagliari, Italy
| | - Maria Letizia Manca
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
| | - Maria Manconi
- Department of Life and Environmental Sciences, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
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Adichtchev SV, Okotrub KA, Pugachev AM, Zaytseva IV, Surovtsev NV. Raman Spectroscopic Study of Phase Coexistence in Binary Phospholipid Bilayers. Appl Spectrosc 2021; 75:87-93. [PMID: 32662288 DOI: 10.1177/0003702820945764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Binary phospholipid bilayers composed of 1,2-dioleoyl-sn-glycero-3-phosphocholine and 1,2-palmitoyl-sn-glycero-3-phosphocholine (DPPC) were studied by Raman spectroscopy and differential scanning calorimetry (DSC). We examined features in Raman scattering spectra that are sensitive to the lipid phase and, therefore, could indicate the phase coexistence. It was found that the low-frequency half-width of half-maximum (LHWHM) of the 2850 cm-1 Raman line, corresponding to the symmetric CH2 stretching vibrations, unequivocally reveals the coexisting phospholipids in ordered and disordered conformational states, which correspond to ordered and disordered phases coexistence, in the DPPC mole concentration range from 0.4 to 0.9. The phase coexistence in this concentration range was supported by the particular concentration behavior of the ratio between the intensities of the 2880 cm-1 antisymmetric CH2 vibration line and the 2850 cm-1 symmetric one. It was also shown that the spectral shape of the 1300 cm-1 Raman line, corresponding to the CH2 twisting vibrations, is a good indicator for the phase state and phase coexistence in the phospholipid bilayers. Comparison with the DSC curves confirmed that in the DPPC mole concentration range from 0.4 to 0.9, the two phase transition peaks are observed in DSC curve, those positions are independent of the DPPC concentration. The outcome of the study is the robust label-free contactless approach for the detection of the lipid phase separation, which can be realized with the micrometer resolution.
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Affiliation(s)
- Sergey V Adichtchev
- Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, Russia
| | - Konstantin A Okotrub
- Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexey M Pugachev
- Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, Russia
| | - Irina V Zaytseva
- Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, Russia
| | - Nikolay V Surovtsev
- Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk, Russia
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Allaw M, Manca ML, Caddeo C, Recio MC, Pérez-Brocal V, Moya A, Fernàndez-Busquets X, Manconi M. Advanced strategy to exploit wine-making waste by manufacturing antioxidant and prebiotic fibre-enriched vesicles for intestinal health. Colloids Surf B Biointerfaces 2020; 193:111146. [PMID: 32485579 DOI: 10.1016/j.colsurfb.2020.111146] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 02/07/2023]
Abstract
Grape extract-loaded fibre-enriched vesicles, nutriosomes, were prepared by combining antioxidant extracts obtained from grape pomaces and a prebiotic, soluble fibre (Nutriose®FM06). The nutriosomes were small in size (from ∼140 to 260 nm), homogeneous (polydispersity index < 0.2) and highly negative (∼ -79 mV). The vesicles were highly stable during 12 months of storage at 25 °C. When diluted with warmed (37 °C) acidic medium (pH 1.2) of high ionic strength, the vesicles only displayed an increase of the mean diameter and a low release of the extract, which were dependent on Nutriose concentration. The formulations were highly biocompatible and able to protect intestinal cells (Caco-2) from oxidative stress damage. In vivo results underlined that the composition of mouse microbiota was not affected by the vesicular formulations. Overall results support the potential application of grape nutriosomes as an alternative strategy for the protection of the intestinal tract.
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Affiliation(s)
- Mohamad Allaw
- Dept. of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Letizia Manca
- Dept. of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
| | - Carla Caddeo
- Dept. of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Carmen Recio
- Dept. of Pharmacology, Faculty of Pharmacy, University of Valencia, Avda Vicent Andrés Estellés sn, 46100 Burjassot-Valencia, Spain
| | - Vicente Pérez-Brocal
- Dept. of Genomics and Health, Foundation for the Promotion of Health and Biomedical Research of Valencia Region (FISABIO-Public Health), Valencia, Spain; CIBER in Epidemiology and Public Health (CIBEResp), Madrid, Spain
| | - Andres Moya
- Dept. of Genomics and Health, Foundation for the Promotion of Health and Biomedical Research of Valencia Region (FISABIO-Public Health), Valencia, Spain; CIBER in Epidemiology and Public Health (CIBEResp), Madrid, Spain; Institute for Integrative Systems Biology (I2SysBio), The University of Valencia and The Spanish National Research Council (CSIC)-UVEG), Valencia, Spain
| | - Xavier Fernàndez-Busquets
- Institute for Bioengineering of Catalonia, (IBEC), The Barcelona Institute of Science and Technology, Barcelona, Barcelona Institute for Global Health (ISGlobal, Hospital Clínic-Universitat de Barcelona), Nanoscience and Nanotechnology Institute (IN2UB), University of Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain
| | - Maria Manconi
- Dept. of Scienze della Vita e dell'Ambiente, Sezione di Scienze del Farmaco, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
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Leyva-Jiménez FJ, Manca ML, Manconi M, Caddeo C, Vázquez JA, Carbone C, Lozano-Sánchez J, Arráez-Román D, Segura-Carretero A. Development of advanced phospholipid vesicles loaded with Lippia citriodora pressurized liquid extract for the treatment of gastrointestinal disorders. Food Chem 2020; 337:127746. [PMID: 32795856 DOI: 10.1016/j.foodchem.2020.127746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023]
Abstract
Pressurized liquid extraction was performed to obtain a phytocomplex from Lippia citriodora leaves rich in bioactive compounds. The extract was loaded in phospholipid vesicles to improve its protective effect against oxidative stress in the intestine. The phytochemicals were identified and quantified by HPLC-ESI-TOF-MS. The extract was incorporated in liposomes and penetration enhancer-containing vesicles (PEVs) modified with glucidex, a dextrin, and a biopolymer obtained from Chimaera monstrosa. The PEVs were smaller than liposomes (~150 vs 370 nm) and more stable, according to accelerated aging tests. The integrity of the vesicles in acidic or neutral pH and high ionic strength or in milk whey was assessed. The cytocompatibility of the formulations and their ability to protect Caco-2 cells against oxidative stress were confirmed in vitro and compared with two commercial extracts of L. citriodora. The results confirmed the suitability of formulations to be used in functional foods to protect the intestine from oxidative stress.
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Affiliation(s)
- Francisco-Javier Leyva-Jiménez
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento 37, E-18100 Granada, Spain
| | - Maria Letizia Manca
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Manconi
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Carla Caddeo
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - José Antonio Vázquez
- Group of Recycling and Valorization of Waste Materials (REVAL), Marine Research Institute (IIM-CSIC), C/Eduardo Cabello, 6, CP36208 Vigo, Spain
| | - Claudia Carbone
- Department of Drug Sciences, University of Catania, viale A. Doria 6, 95125 Catania, Italy
| | - Jesús Lozano-Sánchez
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento 37, E-18100 Granada, Spain; Department of Food Science and Nutrition, University of Granada, Campus of Cartuja, 18071 Granada, Spain.
| | - David Arráez-Román
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento 37, E-18100 Granada, Spain; Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain
| | - Antonio Segura-Carretero
- Functional Food Research and Development Center, Health Science Technological Park, Avenida del Conocimiento 37, E-18100 Granada, Spain; Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Fuentenueva s/n, E-18071 Granada, Spain
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Pleguezuelos-Villa M, Diez-Sales O, Manca ML, Manconi M, Sauri AR, Escribano-Ferrer E, Nácher A. Mangiferin glycethosomes as a new potential adjuvant for the treatment of psoriasis. Int J Pharm 2019; 573:118844. [PMID: 31751638 DOI: 10.1016/j.ijpharm.2019.118844] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 11/01/2019] [Indexed: 12/15/2022]
Abstract
Mangiferin, a natural compound isolated from Mangifera indica L, was incorporated in glycerosomes, ethosomes and alternatively in glycerol-ethanol phospholipid vesicles (glycethosomes). Actually, only glycethosomes were able to stably incorporate the mangiferin that was loaded at increasing concentrations (2, 4, 6, 8 mg/mL). The morphology, size distribution, rheological properties, surface charge and entrapment efficiency of prepared vesicles were deeply measured. All vesicles were mainly spherical, oligolamellar, small in size (~145 nm) and negatively charged (~-40 mV), as confirmed by cryo-TEM observation and dynamic laser light scattering measurements. The higher concentration of mangiferin (8 mg/mL) allowed an increase of vesicle mean diameter up to ~288 nm. The entrapment efficiency was inversely proportional to the amount of loaded mangiferin. In vitro studies performed by using human abdominal skin, underlined that, the dose-dependent ability of vesicles to promote mangiferin retention in epidermis. In addition, glycethosomes were highly biocompatible and showed a strong ability to protect in vitro the fibroblasts against damages induced by hydrogen peroxide. In vivo results underlined the superior ability of mangiferin loaded glycethosomes respect to the mangiferin dispersion to promote the heal of the wound induced by TPA, confirming their potential application for the treatment of psoriasis or other skin disorders.
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Affiliation(s)
- M Pleguezuelos-Villa
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain.
| | - Octavio Diez-Sales
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain; Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Maria Letizia Manca
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Manconi
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, via Ospedale 72, 09124 Cagliari, Italy
| | - Amparo Ruiz Sauri
- Department of Pathology, University of Valencia, Av. Blasco Ibañez 17, 46010 Valencia, Spain
| | - Elvira Escribano-Ferrer
- Biopharmaceutics and Pharmacokinetics Unit, Institute for Nanoscience and Nanotechnology, University of Barcelona, Barcelona, Spain
| | - Amparo Nácher
- Department of Pharmacy, Pharmaceutical Technology and Parasitology, Faculty of Pharmacy, University of Valencia, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain; Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Av. Vicent Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
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Manconi M, Caddeo C, Nacher A, Diez-Sales O, Peris JE, Ferrer EE, Fadda AM, Manca ML. Eco-scalable baicalin loaded vesicles developed by combining phospholipid with ethanol, glycerol, and propylene glycol to enhance skin permeation and protection. Colloids Surf B Biointerfaces 2019; 184:110504. [PMID: 31539753 DOI: 10.1016/j.colsurfb.2019.110504] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/26/2019] [Accepted: 09/11/2019] [Indexed: 01/11/2023]
Abstract
A new class of biocompatible and scalable phospholipid vesicles was developed, aiming at improving the efficacy of baicalin on the skin. Phosphatidylcholine and baicalin (a natural polyphenol) were hydrated in two steps with a mixture of ethanol, glycerol, and propylene glycol at different ratios, and a low amount of water (4%). Hence, water was almost completely replaced by the co-solvents, which were never used before as predominant dispersing medium of phospholipid vesicles. The vesicles appeared three-dimensionally structured, forming a network that conferred a high viscosity to the dispersions. The vesicles were unilamellar, small in size (∼100 nm), and stable during 12 months of storage. They disclosed optimal performances in the transdermal delivery of baicalin, and high biocompatibility with skin cells (i.e., keratinocytes and fibroblasts). Furthermore, the vesicles promoted the efficacy of baicalin in protecting skin cells against oxidative stress in vitro and injured skin in vivo.
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Schlich M, Sinico C, Valenti D, Gulati A, Joshi MD, Meli V, Murgia S, Xanthos T. Towards long-acting adrenaline for cardiopulmonary resuscitation: Production and characterization of a liposomal formulation. Int J Pharm 2019; 557:105-11. [PMID: 30586629 DOI: 10.1016/j.ijpharm.2018.12.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/10/2018] [Accepted: 12/12/2018] [Indexed: 01/01/2023]
Abstract
The use of adrenaline in cardiopulmonary resuscitation is a long-standing medical procedure, recommended by several international guidelines. However, its unspecific action on adrenergic receptors and the need for repeated administrations pose serious concerns about its safety, the balance between benefits and risks being still under debate. To address this issue, a sustained release nano-formulation of adrenaline was developed. Adrenaline was encapsulated into PEGylated, anionic liposomes by a pH-driven loading technique. Particular attention was devoted to the prevention of oxidation of adrenaline by optimizing the preparative process and including an optimal amount of antioxidants in the formulation. The vesicles obtained were then characterized for size, zeta-potential, and lamellarity, while their morphology was described by cryo-TEM. The controlled release properties were confirmed by two different in vitro release-testing methods, and the biocompatibility was assayed on human endothelial cells in vitro.
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Panagabko C, Baptist M, Atkinson J. In vitro lipid transfer assays of phosphatidylinositol transfer proteins provide insight into the in vivo mechanism of ligand transfer. Biochim Biophys Acta Biomembr 2018; 1861:619-630. [PMID: 30543784 DOI: 10.1016/j.bbamem.2018.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 11/16/2022]
Abstract
Fluorescence resonance energy transfer (FRET) assays and membrane binding determinations were performed using three phosphatidylinositol transfer proteins, including the yeast Sec14 and two mammalian proteins PITPα and PITPβ. These proteins were able to specifically bind the fluorescent phosphatidylcholine analogue NBD-PC ((2-(12-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)dodecanoyl-1-hexadecanoyl-sn-glycero-3-phosphocholine)) and to transfer it to small unilamellar vesicles (SUVs). Rate constants for transfer to vesicles comprising 100% PC were slower for all proteins than when increasing percentages of phosphatidylinositol were incorporated into the same SUVs. The rates of ligand transfer by Sec14 were insensitive to the inclusion of equimolar amounts of another anionic phospholipid phosphatidylserine (PS), but the rates of ligand transfer by both mammalian PITPs were strikingly enhanced by the inclusion of phosphatidic acid (PA) in the receptor SUV. Binding of Sec14 to immobilized bilayers was substantial, while that of PITPα and PITPβ was 3-7 times weaker than Sec14 depending on phospholipid composition. When small proportions of the phosphoinositide PI(4)P were included in receptor SUVs (either with PI or not), Sec14 showed substantially increased rates of NBD-PC pick-up, whereas the PITPs were unaffected. The data are supportive of a role for PITPβ as functional PI transfer protein in vivo, but that Sec14 likely has a more elaborate function.
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Affiliation(s)
- Candace Panagabko
- Department of Chemistry and Centre for Biotechnology, Brock University, St. Catharines, Ontario L2A 3S1, Canada
| | - Matilda Baptist
- Department of Chemistry and Centre for Biotechnology, Brock University, St. Catharines, Ontario L2A 3S1, Canada
| | - Jeffrey Atkinson
- Department of Chemistry and Centre for Biotechnology, Brock University, St. Catharines, Ontario L2A 3S1, Canada.
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Yélamos B, Rodríguez-Rodríguez M, Gavilanes F, Gómez-Gutiérrez J. In vitro Membrane Interaction and Liposome Fusion Assays Using Recombinant Hepatitis C Virus Envelope Protein E2. Bio Protoc 2018; 8:e3108. [PMID: 34532551 PMCID: PMC8342114 DOI: 10.21769/bioprotoc.3108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 03/08/2018] [Accepted: 03/12/2018] [Indexed: 04/04/2024] Open
Abstract
In order to study the mechanism underlying the Hepatitis C Virus (HCV) fusion process we have performed assays using phospholipid liposomes and a truncated form of E2 protein, E2661 (amino acids 384-661 of the HCV polyprotein) lacking the transmembrane region. E2661 has been previously generated by using the baculovirus expression system. This form has been used in lipid-protein interaction studies with different model vesicles at different pHs, and monitored using a variety of fluorescent assays. After the analysis of the results, we observed that E2661 is able to insert into lipid bilayers and to induce vesicle aggregation, lipid mixing and liposome leakage, showing higher values of membrane destabilization for negatively charged phospholipids at acidic pH. This is indicative of the role of E2 glycoprotein in the HCV initial infective steps, interacting with the target membranes and producing their destabilization.
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Affiliation(s)
- Belén Yélamos
- Dept. Biochemistry and Molecular Biology, Complutense University of Madrid, Madrid, Spain
| | | | - Francisco Gavilanes
- Dept. Biochemistry and Molecular Biology, Complutense University of Madrid, Madrid, Spain
| | - Julián Gómez-Gutiérrez
- Dept. Biochemistry and Molecular Biology, Complutense University of Madrid, Madrid, Spain
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Manca ML, Mir-Palomo S, Caddeo C, Nacher A, Díez-Sales O, Peris JE, Pedraz JL, Fadda AM, Manconi M. Sorbitol-penetration enhancer containing vesicles loaded with baicalin for the protection and regeneration of skin injured by oxidative stress and UV radiation. Int J Pharm 2018; 555:175-183. [PMID: 30468844 DOI: 10.1016/j.ijpharm.2018.11.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 11/25/2022]
Abstract
Aiming at improving the protective effects of baicalin on the skin, new highly-biocompatible penetration enhancer containing vesicles (PEVs) were developed by modifying the base formulation of transfersomes with sorbitol, thus obtaining sorbitol-PEVs. An extensive evaluation of the physico-chemical features of both transfersomes and sorbitol-PEVs was carried out. Transfersomes were mainly close-packed, multi-compartment vesicles, while sorbitol-PEVs appeared mostly as single, spherical, unilamellar vesicles. All the vesicles were small in size (∼128 nm) and negatively charged (∼-67 mV), without significant differences between the formulations. The in vitro delivery of baicalin to intact skin showed an improved ability of sorbitol-PEVs to favour the deposition of the flavonoid into the whole skin. In addition, the vesicular formulations protected keratinocytes and fibroblasts from oxidative stress and UV radiation, and promoted cell proliferation and migration, which favoured the closure of skin wound. Cell uptake was promoted as well, especially when sorbitol-PEVs were used.
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Affiliation(s)
- Maria Letizia Manca
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Silvia Mir-Palomo
- Dept. of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Burjassot, Vicente Andrés Estellés s/n, Valencia 46100, Spain
| | - Carla Caddeo
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy.
| | - Amparo Nacher
- Dept. of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Burjassot, Vicente Andrés Estellés s/n, Valencia 46100, Spain; Institute of Molecular Recognition and Technological Development, Inter-University Institute from Polytechnic University of Valencia and University of Valencia, Spain
| | - Octavio Díez-Sales
- Dept. of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Burjassot, Vicente Andrés Estellés s/n, Valencia 46100, Spain; Institute of Molecular Recognition and Technological Development, Inter-University Institute from Polytechnic University of Valencia and University of Valencia, Spain
| | - Josè Esteban Peris
- Dept. of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia, Burjassot, Vicente Andrés Estellés s/n, Valencia 46100, Spain
| | - Josè Luis Pedraz
- NanoBioCel Group, University of Basque Country, Paseo de la Universidad 7, 01006 Vitoria, Spain; Networking Research Centre of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Anna Maria Fadda
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Maria Manconi
- Dept. of Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
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Manconi M, Petretto G, D'hallewin G, Escribano E, Milia E, Pinna R, Palmieri A, Firoznezhad M, Peris JE, Usach I, Fadda AM, Caddeo C, Manca ML. Thymus essential oil extraction, characterization and incorporation in phospholipid vesicles for the antioxidant/antibacterial treatment of oral cavity diseases. Colloids Surf B Biointerfaces 2018; 171:115-122. [PMID: 30025373 DOI: 10.1016/j.colsurfb.2018.07.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 12/28/2022]
Abstract
The aim of the work was to extract, characterize, and formulate Thymus capitatus (Tymbra capitata) essential oil in phospholipid vesicles: liposomes, glycerosomes and Penetration Enhancer-containing Vesicles (PEVs). The steam-distilled essential oil was mainly composed of carvacrol. The oil was mixed with lecithin and water to produce liposomes, or different ratios of water/glycerol or water/propylene glycol (PG) to produce glycerosomes and PG-PEVs, respectively. Cryo-TEM showed the formation of unilamellar, spherical vesicles, and light scattering disclosed that their size increased in the presence of glycerol or PG, which improved long-term stability. The formulations were highly biocompatible, and capable of counteracting oxidative stress and favouring wound repair in keratinocytes, thanks to enhanced uptake. The antibacterial activity of the oil was demonstrated against cariogenic Streptococcus mutans, Lactobacillus acidophilus, and commensal Streptococcus sanguinis. The combination of antioxidant and antibacterial activities of Thymus essential oil formulations may be useful for the treatment of oral cavity diseases.
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Affiliation(s)
- Maria Manconi
- Dept. of Scienze della Vita e dell'Ambiente, Drug Science Division, University of Cagliari, 09124 Cagliari, Italy
| | - Giacomo Petretto
- Dept. of Chemistry and Pharmacy, University of Sassari, 07100 Sassari, Italy
| | - Guy D'hallewin
- Institute of Science of Food Production ISPA-CNR, Traversa la Crucca 3, Loc. Baldinca, 07040 Sassari, Italy
| | - Elvira Escribano
- Biopharmaceutics and Pharmacokinetics Unit, Institute for Nanoscience and Nanotechnology, University of Barcelona, Barcelona, Spain
| | - Egle Milia
- Dept. of Experimental Medicine and Surgical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Roberto Pinna
- Dept. of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Alessandra Palmieri
- Dept. of Experimental Medicine and Surgical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Mohammad Firoznezhad
- Dept. of Horticulture Science, Islamic Azad University, Science and Research Branch, 1477893855 Tehran, Iran
| | - Josè Esteban Peris
- Dept. of Pharmacy, Pharmaceutical Technology and Parasitology, University of Valencia, Burjassot, 46100 Valencia, Spain
| | - Iris Usach
- Dept. of Pharmacy, Pharmaceutical Technology and Parasitology, University of Valencia, Burjassot, 46100 Valencia, Spain
| | - Anna Maria Fadda
- Dept. of Scienze della Vita e dell'Ambiente, Drug Science Division, University of Cagliari, 09124 Cagliari, Italy
| | - Carla Caddeo
- Dept. of Scienze della Vita e dell'Ambiente, Drug Science Division, University of Cagliari, 09124 Cagliari, Italy.
| | - Maria Letizia Manca
- Dept. of Scienze della Vita e dell'Ambiente, Drug Science Division, University of Cagliari, 09124 Cagliari, Italy
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Cheng CYS, Kim TK, Jeayeng S, Slominski AT, Tuckey RC. Properties of purified CYP2R1 in a reconstituted membrane environment and its 25-hydroxylation of 20-hydroxyvitamin D3. J Steroid Biochem Mol Biol 2018; 177:59-69. [PMID: 28716760 PMCID: PMC5767547 DOI: 10.1016/j.jsbmb.2017.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Revised: 07/10/2017] [Accepted: 07/12/2017] [Indexed: 12/31/2022]
Abstract
Recent studies indicate that CYP2R1 is the major 25-hydroxylase catalyzing the first step in vitamin D activation. Since the catalytic properties of CYP2R1 have been poorly studied to date and it is a membrane protein, we examined the purified enzyme in a membrane environment. CYP2R1 was expressed in E. coli and purified by nickel affinity- and hydrophobic interaction-chromatography and assayed in a reconstituted membrane system comprising phospholipid vesicles plus purified human NADPH-P450 oxidoreductase. CYP2R1 converted vitamin D3 in the vesicle membrane to 25-hydroxyvitamin D3 [25(OH)D3] with good adherence to Michaelis-Menten kinetics. The kinetic parameters for 25-hydroxylation of vitamin D3 by the two major vitamin D 25-hydroxylases, CYP2R1 and CYP27A1, were examined in vesicles under identical conditions. CYP2R1 displayed a slightly lower kcat than CYP27A1 but a much lower Km for vitamin D3, and thus an overall 17-fold higher catalytic efficiency (kcat/Km), consistent with CYP2R1 being the major vitamin D 25-hydroxylase. 20-Hydroxyvitamin D3 [20(OH)D3], the main product of vitamin D3 activation by an alternative pathway catalyzed by CYP11A1, was metabolized by CYP2R1 to 20,25-dihydroxyvitamin D3 [20,25(OH)2D3], with catalytic efficiency similar to that for the 25-hydroxylation of vitamin D3. 20,25(OH)2D3 retained full, or somewhat enhanced activity compared to the parent 20(OH)D3 for the inhibition of the proliferation of melanocytes and dermal fibroblasts, with a potency comparable to 1,25-dihydroxyvitamin D3 [1,25(OH)2D3]. The 20,25(OH)2D3 was also able to act as an inverse agonist on retinoic acid-related orphan receptor α, like its parent 20(OH)D3. Thus, the major findings of this study are that CYP2R1 can metabolize substrates in a membrane environment, the enzyme displays higher catalytic efficiency than CYP27A1 for the 25-hydroxylation of vitamin D, it efficiently hydroxylates 20(OH)D3 at C25 and this product retains the biological activity of the parent compound.
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Affiliation(s)
- Chloe Y S Cheng
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia
| | - Tae-Kang Kim
- Department of Dermatology, University of Alabama at Birmingham, AL, 35294, USA
| | - Saowanee Jeayeng
- Department of Dermatology, University of Alabama at Birmingham, AL, 35294, USA; Department of Pharmacology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, 10700, Thailand
| | - Andrzej T Slominski
- Department of Dermatology, University of Alabama at Birmingham, AL, 35294, USA; VA Medical Center, Birmingham, AL, 35294, USA
| | - Robert C Tuckey
- School of Molecular Sciences, The University of Western Australia, Perth, WA, 6009, Australia.
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Abstract
Phospholipid vesicle (liposome) offers an aqueous compartment surrounded by lipid bilayer membranes. Various enzyme molecules have been reported to be encapsulated in liposomes. The liposomal enzyme shows peculiar catalytic activity and selectivity to the substrate in the bulk liquid, which are predominantly derived from the substrate permeation resistance through the membrane. We reported that the quaternary structure of bovine liver catalase and alcohol dehydrogenase was stabilized in liposomes through their interaction with lipid membranes. The method and condition for preparing the enzyme-containing liposomes with well-defined size, lipid composition, and enzyme content are of particular importance, because these properties dominate the catalytic performance and stability of the liposomal enzymes.
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Castangia I, Caddeo C, Manca ML, Casu L, Latorre AC, Díez-Sales O, Ruiz-Saurí A, Bacchetta G, Fadda AM, Manconi M. Delivery of liquorice extract by liposomes and hyalurosomes to protect the skin against oxidative stress injuries. Carbohydr Polym 2015; 134:657-63. [PMID: 26428169 DOI: 10.1016/j.carbpol.2015.08.037] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 07/21/2015] [Accepted: 08/14/2015] [Indexed: 02/02/2023]
Abstract
Liquorice extract, obtained by percolation in ethanol of Glycyrrhiza glabra L. roots, was incorporated in liposomes and hyalurosomes, new phospholipid-sodium hyaluronate vesicles, and their protective effect against oxidative stress skin damages was probed. As a comparison, raw glycyrrhizin was also tested. All the vesicles were small in size (≤ 100 nm), with a highly negative zeta potential ensuring long-term stability, and able to incorporate a high amount of the extract. In vitro tests showed that the liquorice extract loaded in vesicles was able to scavenge DPPH free radical (80% inhibition) and to protect 3T3 fibroblasts against H2O2-induced oxidative stress, restoring the normal conditions. By contrast, glycyrrhizin showed poor antioxidant activity, and was not able to efficiently counteract the oxidative effect of H2O2. In addition, the incorporation of the liquorice extract into the vesicular systems promoted the proliferation and migration of 3T3 fibroblasts, favouring the closure of the scratched area. In vivo anti-inflammatory tests on mice confirmed the ability of the proposed nanosystems to improve the local efficacy of the extract, favouring the re-epitelization process.
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Affiliation(s)
- Ines Castangia
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
| | - Carla Caddeo
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
| | - Maria Letizia Manca
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy.
| | - Laura Casu
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
| | - Ana Catalan Latorre
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy; Department of Pharmacy and Pharmaceutical Technology, University of Valencia, Valencia, Spain
| | - Octavio Díez-Sales
- Department of Pharmacy and Pharmaceutical Technology, University of Valencia, Valencia, Spain; Instituto de Reconocimiento Molecular y Desarrollo Tecnológico, Centro Mixto Universidad Politécnica de Valencia-Universidad de Valencia, Valencia, Spain
| | | | - Gianluigi Bacchetta
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
| | - Anna Maria Fadda
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
| | - Maria Manconi
- Department Scienze della Vita e dell'Ambiente, University of Cagliari, Cagliari, Italy
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Manca ML, Castangia I, Zaru M, Nácher A, Valenti D, Fernàndez-Busquets X, Fadda AM, Manconi M. Development of curcumin loaded sodium hyaluronate immobilized vesicles (hyalurosomes) and their potential on skin inflammation and wound restoring. Biomaterials 2015; 71:100-109. [PMID: 26321058 DOI: 10.1016/j.biomaterials.2015.08.034] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 08/08/2015] [Accepted: 08/14/2015] [Indexed: 02/02/2023]
Abstract
In the present work new highly biocompatible nanovesicles were developed using polyanion sodium hyaluronate to form polymer immobilized vesicles, so called hyalurosomes. Curcumin, at high concentration was loaded into hyalurosomes and physico-chemical properties and in vitro/in vivo performances of the formulations were compared to those of liposomes having the same lipid and drug content. Vesicles were prepared by direct addition of dispersion containing the polysaccharide sodium hyaluronate and the polyphenol curcumin to a commercial mixture of soy phospholipids, thus avoiding the use of organic solvents. An extensive study was carried out on the physico-chemical features and properties of curcumin-loaded hyalurosomes and liposomes. Cryogenic transmission electron microscopy and small-angle X-ray scattering showed that vesicles were spherical, uni- or oligolamellar and small in size (112-220 nm). The in vitro percutaneous curcumin delivery studies on intact skin showed an improved ability of hyalurosomes to favour a fast drug deposition in the whole skin. Hyalurosomes as well as liposomes were biocompatible, protected in vitro human keratinocytes from oxidative stress damages and promoted tissue remodelling through cellular proliferation and migration. Moreover, in vivo tests underlined a good effectiveness of curcumin-loaded hyalurosomes to counteract 12-O-tetradecanoilphorbol (TPA)-produced inflammation and injuries, diminishing oedema formation, myeloperoxydase activity and providing an extensive skin reepithelization. Thanks to the one-step and environmentally-friendly preparation method, component biocompatibility and safety, good in vitro and in vivo performances, the hyalurosomes appear as promising nanocarriers for cosmetic and pharmaceutical applications.
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Affiliation(s)
- M L Manca
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - I Castangia
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - M Zaru
- Instituto de Reconocimiento Molecular y Desarrollo Tecnológico, Centro Mixto Universidad Politécnica de Valencia-Universidad de Valencia, Spain
| | - A Nácher
- Icnoderm Srl, Sardegna Ricerche Ed.5, Pula, Cagliari, 09010, Italy; Dept. of Pharmacy and Pharmaceutical Technology, University of Valencia, Avda Vicente Andrés Estellés s/n, 46100-Burjassot, Valencia, Spain
| | - D Valenti
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - X Fernàndez-Busquets
- Nanomalaria Unit, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain; Barcelona Institute for Global Health (ISGlobal, Hospital Clínic-Universitat de Barcelona), Spain; Nanoscience and Nanotechnology Institute (IN2UB), University of Barcelona, Spain
| | - A M Fadda
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy
| | - M Manconi
- Dept. Scienze della Vita e dell'Ambiente, University of Cagliari, Via Ospedale 72, 09124, Cagliari, Italy.
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Alexandrova L, Karakashev SI, Grigorov L, Phan CM, Smoukov SK. Wetting properties of phospholipid dispersion on tunable hydrophobic SiO2-glass plates. Adv Colloid Interface Sci 2015; 220:1-7. [PMID: 25441448 DOI: 10.1016/j.cis.2014.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 08/15/2014] [Accepted: 08/18/2014] [Indexed: 10/24/2022]
Abstract
We study the wetting properties of very small droplets of salty aqueous suspensions of unilamellar liposomes of DMPC (dimyristoylphosphatidylcholine), situated on SiO2-glass surfaces with different levels of hydrophobicity. We evaluated two different measures of hydrophobicity of solid surfaces - receding contact angles and the thickness of wetting films trapped between an air bubble and the solid surface at different levels of hydrophobicity. We established a good correlation between methods which differ significantly in measurement difficulty and experimental setup. We also reveal details of the mechanism of wetting of different surfaces by the DMPC liposome suspension. Hydrophilic surfaces with water contact angles in the range of 0° to 35° are readily hydrophobized by the liposomes and only showed corresponding contact angles in the range 27°-43°. For same range of surface hydrophobicities, there was a clear reduction of the thickness of the wetting films between the surface and a bubble, reaching a minimum in the 35°-40° range. At higher levels of hydrophobicity both pure water and the liposome suspension show similar contact angles, and the thickness of wetting films between a bubble and those surfaces increases in parallel. Our analysis showed that the only force able to stabilize the film under these experimental conditions is steric repulsion. The latter suggests that nanobubbles adsorbed on hydrophobic parts of the surface, and coated with a DMPC layer, may be the cause of the 40-70 nm thickness of wetting films we observe.
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18
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Tieu EW, Li W, Chen J, Kim TK, Ma D, Slominski AT, Tuckey RC. Metabolism of 20-hydroxyvitamin D3 and 20,23-dihydroxyvitamin D3 by rat and human CYP24A1. J Steroid Biochem Mol Biol 2015; 149:153-65. [PMID: 25727742 PMCID: PMC4380815 DOI: 10.1016/j.jsbmb.2015.02.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 02/15/2015] [Accepted: 02/16/2015] [Indexed: 11/19/2022]
Abstract
CYP11A1 hydroxylates vitamin D3 producing 20S-hydroxyvitamin D3 [20(OH)D3] and 20S,23-dihydroxyvitamin D3 [20,23(OH)2D3] as the major and most characterized metabolites. Both display immuno-regulatory and anti-cancer properties while being non-calcemic. A previous study indicated 20(OH)D3 can be metabolized by rat CYP24A1 to products including 20S,24-dihydroxyvitamin D3 [20,24(OH)2D3] and 20S,25-dihydroxyvitamin D3, with both producing greater inhibition of melanoma colony formation than 20(OH)D3. The aim of this study was to characterize the ability of rat and human CYP24A1 to metabolize 20(OH)D3 and 20,23(OH)2D3. Both isoforms metabolized 20(OH)D3 to the same dihydroxyvitamin D species with no secondary metabolites being observed. Hydroxylation at C24 produced both enantiomers of 20,24(OH)2D3. For rat CYP24A1 the preferred initial site of hydroxylation was at C24 whereas the human enzyme preferred C25. 20,23(OH)2D3 was initially metabolized to 20S,23,24-trihydroxyvitamin D3 and 20S,23,25-trihydroxyvitamin D3 by rat and human CYP24A1 as determined by NMR, with both isoforms showing a preference for initial hydroxylation at C25. CYP24A1 was able to further oxidize these metabolites in a series of reactions which included the cleavage of C23-C24 bond, as indicated by high resolution mass spectrometry of the products, analogous to the catabolism of 1,25(OH)2D3 via the C24-oxidation pathway. Similar catalytic efficiencies were observed for the metabolism of 20(OH)D3 and 20,23(OH)2D3 by human CYP24A1 and were lower than for the metabolism of 1,25(OH)2D3. We conclude that rat and human CYP24A1 metabolizes 20(OH)D3 producing only dihydroxyvitamin D3 species as products which retain biological activity, whereas 20,23(OH)2D3 undergoes multiple oxidations which include cleavage of the side chain.
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Affiliation(s)
- Elaine W Tieu
- School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia
| | - Wei Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Jianjun Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA; Department of Pharmaceutical Sciences, School of Pharmacy, South College, Knoxville, TN, USA
| | - Tae-Kang Kim
- Department of Pathology and Laboratory Medicine, Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Dejian Ma
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Andrzej T Slominski
- Department of Pathology and Laboratory Medicine, Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, USA; Department of Dermatology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Robert C Tuckey
- School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia.
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19
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Castangia I, Nácher A, Caddeo C, Merino V, Díez-Sales O, Catalán-Latorre A, Fernàndez-Busquets X, Fadda AM, Manconi M. Therapeutic efficacy of quercetin enzyme-responsive nanovesicles for the treatment of experimental colitis in rats. Acta Biomater 2015; 13:216-27. [PMID: 25463498 DOI: 10.1016/j.actbio.2014.11.017] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 09/29/2014] [Accepted: 11/11/2014] [Indexed: 12/16/2022]
Abstract
Biocompatible quercetin nanovesicles were developed by coating polyethylene glycol-containing vesicles with chitosan and nutriose, aimed at targeting the colon. Uncoated and coated vesicles were prepared using hydrogenated soy phosphatidylcholine and quercetin, a potent natural anti-inflammatory and antioxidant drug. Physicochemical characterization was carried out by light scattering, cryogenic microscopy and X-ray scattering, the results showing that vesicles were predominantly multilamellar and around 130 nm in size. The in vitro release of quercetin was investigated under different pH conditions simulating the environment of the gastrointestinal tract, and confirmed that the chitosan/nutriose coating improved the gastric resistance of vesicles, making them a potential carrier system for colon delivery. The preferential localization of fluorescent vesicles in the intestine was demonstrated using the In Vivo FX PRO Imaging System. Above all, a marked amelioration of symptoms of 2,4,6-trinitrobenzenesulfonic acid-induced colitis was observed in animals treated with quercetin-loaded coated vesicles, favoring the restoration of physiological conditions. Therefore, quercetin-loaded chitosan/nutriose-coated vesicles can represent a valuable therapeutic tool for the treatment of chronic intestinal inflammatory diseases, and presumably a preventive system, due to the synergic action of antioxidant quercetin and beneficial prebiotic effects of the chitosan/nutriose complex.
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20
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Manca ML, Castangia I, Caddeo C, Pando D, Escribano E, Valenti D, Lampis S, Zaru M, Fadda AM, Manconi M. Improvement of quercetin protective effect against oxidative stress skin damages by incorporation in nanovesicles. Colloids Surf B Biointerfaces 2014; 123:566-74. [PMID: 25444664 DOI: 10.1016/j.colsurfb.2014.09.059] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/09/2014] [Accepted: 09/28/2014] [Indexed: 01/12/2023]
Abstract
Quercetin was incorporated in glycerosomes, new phospholipid-glycerol vesicles, and their protective effect against oxidative stress skin damages was extensively evaluated. In particular, the concentration-dependent effect of glycerol (from 10 to 50%) on vesicle suitability as cutaneous carriers of quercetin was carefully assessed. All vesicles were unilamellar and small in size (∼80-110 nm), as confirmed by cryo-TEM observation, with a drug incorporation efficiency ranging between 81 and 91%. SAXS studies, performed to investigate the bilayer arrangement, indicated a strong, dose-dependent interaction of glycerol with the polar portions of the phospholipid molecules, while quercetin did not significantly change the bilayer packing. In vitro studies on newborn pig skin underlined the concentration-dependent ability of glycerosomes to promote quercetin accumulation in the different layers, also confirmed by confocal microscopic observation of skin treated with fluorescent vesicles. Quercetin incorporated into liposomal and glycerosomal nanoformulations showed a strong ability to scavenge free radicals (DPPH test) and protect human keratinocytes in vitro against hydrogen peroxide damage. Moreover, quercetin-loaded vesicles were avidly taken up by keratinocytes in vitro. Overall, results indicate 40 and 50% glycerosomes as promising nanosystems for the improvement of cutaneous quercetin delivery and keratinocyte protection against oxidative stress damage.
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Affiliation(s)
- Maria Letizia Manca
- Dept. Scienze della Vita e dell'Ambiente, CNBS, University of Cagliari, Cagliari, Italy.
| | - Ines Castangia
- Dept. Scienze della Vita e dell'Ambiente, CNBS, University of Cagliari, Cagliari, Italy
| | - Carla Caddeo
- Dept. Scienze della Vita e dell'Ambiente, CNBS, University of Cagliari, Cagliari, Italy
| | - Daniel Pando
- Department Ingeniería Química y Tecnología del Medio Ambiente, University of Oviedo, Oviedo, Spain
| | - Elvira Escribano
- Biopharmaceutics and Pharmacokinetics Unit, Institute for Nanoscience and Nanotechnology, University of Barcelona, Barcelona, Spain
| | - Donatella Valenti
- Dept. Scienze della Vita e dell'Ambiente, CNBS, University of Cagliari, Cagliari, Italy
| | - Sandrina Lampis
- Dept. Scienze Chimiche e Geologiche, CNBS and CSGI, University of Cagliari, Monserrato (CA), Italy
| | - Marco Zaru
- Prigen srl, Sardegna Ricerche Ed. 3, Pula (Cagliari) 09010, Italy
| | - Anna Maria Fadda
- Dept. Scienze della Vita e dell'Ambiente, CNBS, University of Cagliari, Cagliari, Italy
| | - Maria Manconi
- Dept. Scienze della Vita e dell'Ambiente, CNBS, University of Cagliari, Cagliari, Italy
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Abstract
Prepare polydisperse, multilamellar vesicles by rehydrating a thin film of fatty acids or phospholipids.
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Affiliation(s)
- Ting F Zhu
- Department of Molecular Biology, Howard Hughes Medical Institute, Massachusetts General Hospital, Boston, MA, USA
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