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Ahmad S, d'Avanzo N, Mancuso A, Barone A, Cristiano MC, Carresi C, Mollace V, Celia C, Fresta M, Paolino D. Skin Tolerability of Oleic Acid Based Nanovesicles Designed for the Improvement of Icariin and Naproxen Percutaneous Permeation. ACS Appl Bio Mater 2024. [PMID: 38608313 DOI: 10.1021/acsabm.4c00067] [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] [Indexed: 04/14/2024]
Abstract
Deformable nanovesicles have a crucial role in topical drug delivery through the skin, due to their capability to pass intact the stratum corneum and epidermis (SCE) and significantly increase the efficacy and accumulation of payloads in the deeper layers of the skin. Namely, lipid-based ultradeformable nanovesicles are versatile and load bioactive molecules with different physicochemical properties. For this reason, this study aims to make oleic acid based nanovesicles (oleosomes) for the codelivery of icariin and sodium naproxen and increase their permeation through the skin. Oleosomes have suitable physicochemical properties and long-term stability for a potential dermal or transdermal application. The inclusion of oleic acid in the lipid bilayer increases 3-fold the deformable properties of oleosomes compared to conventional liposomes and significantly improves the percutaneous permeation of icariin and sodium naproxen through the human SCE membranes compared to hydroalcoholic solutions of both drugs. The tolerability studies on human volunteers demonstrate that oleosomes are safer and speed up the recovery of transepidermal water loss (TEWL) baselines compared to saline solution. These results highlight promising properties of icariin/sodium naproxen coloaded oleosomes for the treatment of skin disorders and suggest the potential future applications of these nanovesicles for further in vivo experiments.
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Affiliation(s)
- Shabir Ahmad
- Department of Health Sciences, University of Catanzaro "Magna Graecia", Viale "S. Venuta", 88100 Catanzaro, Italy
| | - Nicola d'Avanzo
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Graecia", Viale "S. Venuta", 88100, Catanzaro, Italy
- Research Center "ProHealth Translational Hub", Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Graecia", Campus Universitario "S. Venuta", Building of BioSciences, Viale S. Venuta, 88100 Catanzaro, Italy
| | - Antonia Mancuso
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Graecia", Viale "S. Venuta", 88100, Catanzaro, Italy
- Research Center "ProHealth Translational Hub", Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Graecia", Campus Universitario "S. Venuta", Building of BioSciences, Viale S. Venuta, 88100 Catanzaro, Italy
| | - Antonella Barone
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Graecia", Viale "S. Venuta", 88100, Catanzaro, Italy
| | - Maria Chiara Cristiano
- Department of Medical and Surgical Sciences, University of Catanzaro "Magna Graecia", Viale "S. Venuta", 88100 Catanzaro, Italy
| | - Cristina Carresi
- Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University of Catanzaro "Magna Graecia", 88100 Catanzaro, Italy
| | - Vincenzo Mollace
- Institute of Research for Food Safety and Health IRC-FSH, Department of Health Sciences, University of Catanzaro "Magna Graecia", 88100 Catanzaro, Italy
- Renato Dulbecco Institute, Lamezia Terme, 88046 Catanzaro, Italy
| | - Christian Celia
- Department of Pharmacy, University of Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy
- Laboratory of Drug Targets Histopathology, Institute of Cardiology, Lithuanian University of Health Sciences, A. Mickeviciaus g. 9, LT-44307 Kaunas, Lithuania
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
- UdA-TechLab, Research Center, University of Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100 Chieti, Italy
| | - Massimo Fresta
- Department of Health Sciences, University of Catanzaro "Magna Graecia", Viale "S. Venuta", 88100 Catanzaro, Italy
| | - Donatella Paolino
- Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Graecia", Viale "S. Venuta", 88100, Catanzaro, Italy
- Research Center "ProHealth Translational Hub", Department of Experimental and Clinical Medicine, University of Catanzaro "Magna Graecia", Campus Universitario "S. Venuta", Building of BioSciences, Viale S. Venuta, 88100 Catanzaro, Italy
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Faber T, McConville JT, Lamprecht A. Focused ion beam-scanning electron microscopy provides novel insights of drug delivery phenomena. J Control Release 2024; 366:312-327. [PMID: 38161031 DOI: 10.1016/j.jconrel.2023.12.048] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/23/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Scanning electron microscopy (SEM) has long been a standard tool for morphological analyses, providing sub micrometer resolution of pharmaceutical formulations. However, analysis of internal morphologies of such formulations can often be biased due to the introduction of artifacts that originate from sample preparation. A recent advancement in SEM, is the focused ion beam scanning electron microscopy (FIB-SEM). This technique uses a focused ion beam (FIB) to remove material with nanometer precision, to provide virtually sample-independent access to sub-surface structures. The FIB can be combined with SEM imaging capabilities within the same instrumentation. As a powerful analytical tool, electron microscopy and FIB-milling are performed sequentially to produce high-resolution 3D models of structural peculiarities of diverse drug delivery systems or their behavior in a biological environment, i.e. intracellular or -tissue distribution. This review paper briefly describes the technical background of the method, outlines a wide array of potential uses within the drug delivery field, and focuses on intracellular transport where high-resolution images are an essential tool for mechanistical insights.
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Affiliation(s)
- Thilo Faber
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Bonn, Germany
| | - Jason T McConville
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico, Albuquerque, NM, USA
| | - Alf Lamprecht
- Department of Pharmaceutics, Institute of Pharmacy, University of Bonn, Bonn, Germany; Université de Franche-Comté, INSERM UMR1098 Right, Besançon, France.
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Gupta P, Rai N, Verma A, Gautam V. Microscopy based methods for characterization, drug delivery, and understanding the dynamics of nanoparticles. Med Res Rev 2024; 44:138-168. [PMID: 37294298 DOI: 10.1002/med.21981] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 05/04/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
Nanomedicine is an emerging field that exploits nanotechnology for the development of novel therapeutic and diagnostic modalities. Researches are been focussed in nanoimaging to develop noninvasive, highly sensitive, and reliable tools for diagnosis and visualization in nanomedical field. The application of nanomedicine in healthcare requires in-depth understanding of their structural, physical and morphological properties, internalization inside living system, biodistribution and localization, stability, mode of action and possible toxic health effects. Microscopic techniques including fluorescence-based confocal laser scanning microscopy, super-resolution fluorescence microscopy and multiphoton microscopy; optical-based Raman microscopy, photoacoustic microscopy and optical coherence tomography; photothermal microscopy; electron microscopy (transmission electron microscope and scanning electron microscope); atomic force microscopy; X-ray microscopy and, correlative multimodal imaging are recognized as an indispensable tool in material research and aided in numerous discoveries. Microscopy holds great promise in detecting the fundamental structures of nanoparticles (NPs) that determines their performance and applications. Moreover, the intricate details that allows assessment of chemical composition, surface topology and interfacial properties, molecular, microstructure, and micromechanical properties are also elucidated. With plethora of applications, microscopy-based techniques have been used to characterize novel NPs alongwith their proficient designing and adoption of safe strategies to be exploited in nanomedicine. Consequently, microscopic techniques have been extensively used in the characterization of fabricated NPs, and their biomedical application in diagnostics and therapeutics. The present review provides an overview of the microscopy-based techniques for in vitro and in vivo application in nanomedical investigation alongwith their challenges and advancement to meet the limitations of conventional methods.
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Affiliation(s)
- Priyamvada Gupta
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Nilesh Rai
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ashish Verma
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Vibhav Gautam
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Nousheen K, Din FU, Jamshaid H, Afza R, Khan SU, Malik M, Ali Z, Batool S, Zeb A, Yousaf AM, Almari AH, Alqahtani S, Khan S, Khan GM. Metformin HCl-loaded transethosomal gel; development, characterization, and antidiabetic potential evaluation in the diabetes-induced rat model. Drug Deliv 2023; 30:2251720. [PMID: 37649375 PMCID: PMC10472853 DOI: 10.1080/10717544.2023.2251720] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 08/17/2023] [Accepted: 08/20/2023] [Indexed: 09/01/2023] Open
Abstract
Herein we designed, optimized, and characterized the Metformin Hydrochloride Transethosomes (MTF-TES) and incorporate them into Chitosan gel to develop Metformin Hydrochloride loaded Transethosomal gel (MTF-TES gel) that provides a sustained release, improved transdermal flux and improved antidiabetic response of MTF. Design Expert® software (Ver. 12, Stat-Ease, USA) was applied for the statistical optimization of MTF-TES. The formulation with Mean Particle Size Distribution (MPSD) of 165.4 ± 2.3 nm, Zeta Potential (ZP) of -21.2 ± 1.9 mV, Polydispersity Index (PDI) of 0.169 ± 0.033, and MTF percent Entrapment Efficiency (%EE) of 89.76 ± 4.12 was considered to be optimized. To check the chemical incompatibility among the MTF and other formulation components, Fourier Transform Infrared (FTIR) spectroscopy was performed and demonstrated with no chemical interaction. Surface morphology, uniformity, and segregation were evaluated through Transmission Electron Microscopy (TEM). It was revealed that the nanoparticles were spherical and round in form with intact borders. The fabricated MTF-TES has shown sustained release followed by a more pronounced effect in MTF-TES gel as compared to the plain MTF solution (MTFS) at a pH of 7.4. The MTF-TES has shown enhanced permeation followed by MTF-TES gel as compared to the MTFS at a pH of 7.4. In vivo antidiabetic assay was performed and results have shown improved antidiabetic potential of the MTF-TES gel, in contrast to MTF-gel. Conclusively, MTF-TES is a promising anti-diabetic candidate for transdermal drug delivery that can provide sustained MTF release and enhanced antidiabetic effect.
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Affiliation(s)
- Kainat Nousheen
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Fakhar Ud Din
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Humzah Jamshaid
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Rabia Afza
- Department of Botany, Hazara University, Mansehra, Pakistan
| | - Saif Ullah Khan
- Institute of Biotechnology and Microbiology, Bacha Khan University, Charsada, Pakistan
| | - Maimoona Malik
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Zakir Ali
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Sibgha Batool
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Alam Zeb
- Riphah Institute of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
| | - Abid Mehmood Yousaf
- Department of Pharmacy, Comsats University Islamabad, Lahore Campus, Pakistan
| | - Ali H. Almari
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Saud Alqahtani
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Salman Khan
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
| | - Gul Majid Khan
- Department of Pharmacy, Nanomedicine Research Group, Quaid-i-Azam University, Islamabad, Pakistan
- Islamia College University, Peshawar, Pakistan
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Abd-Alaziz DM, Mansour M, Nasr M, Sammour OA. Spanethosomes as a novel topical carrier for silymarin in contrast to conventional spanlastics: Formulation development, in vitro and ex vivo evaluation for potential treatment of leishmaniasis. J Drug Deliv Sci Technol 2023; 88:104887. [DOI: 10.1016/j.jddst.2023.104887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Nayak BS, Mohanty B, Mishra B, Roy H, Nandi S. Transethosomes: Cutting edge approach for drug permeation enhancement in transdermal drug delivery system. Chem Biol Drug Des 2023; 102:653-667. [PMID: 37062593 DOI: 10.1111/cbdd.14254] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/30/2023] [Accepted: 04/04/2023] [Indexed: 04/18/2023]
Abstract
The skin is a major route of drug administration. Despite the high surface area of the skin, drug delivery via the skin route is problematic due to its physiological obstacles. The formulation scientist has developed a vesicular system to enhance the skin's absorption of bioactive substances. Among numerous vesicular systems, concept of transethosomes (TEs) introduced in 2012 are being tested for drug delivery to the dermis. When transferosomes and ethosomes interact, TEs are produced. It consists of water, ethanol, phospholipids, and an edge activator. Ethanol and the edge activator increase the absorption of medication through the skin. In the presence of ethanol and an edge activator, skin permeability can increase. The advantages of TEs include increased patient compliance, bypassing first-pass metabolism, including non-toxic raw components, being a noninvasive method of drug delivery, being more stable, biocompatible, biodegradable, and administered in semisolid form. TEs can be produced through the use of hot, cold, mechanical dispersion, and conventional techniques. The morphology, shape, size, zeta potential, drug loading efficiency, vesicle yield, biophysical interactions, and stability of TEs define them. Recent studies reported successful transdermal distribution of antifungal, antiviral, anti-inflammatory, and cardiovascular bioactive while using ethosomes with significant deeper penetration in skin. The review extensively discussed various claims on TEs developed by researchers, patents, and marketed ethosomes. However, till today no patens being granted on TEs. There are still lingering difficulties related to ethanol-based TEs that require substantial research to fix.
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Affiliation(s)
| | | | - Bibaswan Mishra
- Institute of Pharmacy and Technology, Salipur, Cuttack, Odisha, India
| | | | - Sisir Nandi
- Global Institute of Pharmaceutical Education and Research, Kashipur, Uttarakhand, India
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Raj A, Dua K, Nair RS, Sarath Chandran C, Alex AT. Transethosome: An ultra-deformable ethanolic vesicle for enhanced transdermal drug delivery. Chem Phys Lipids 2023; 255:105315. [PMID: 37356610 DOI: 10.1016/j.chemphyslip.2023.105315] [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: 05/04/2023] [Revised: 06/06/2023] [Accepted: 06/22/2023] [Indexed: 06/27/2023]
Abstract
Drug delivery through the skin improves solubility, bioavailability, and unwanted systemic side effects of the drug. The selection of a suitable carrier is a challenging process. The conventional lipid vesicles have some limitations. They deliver the drug in the stratum corneum and have poor colloidal stability. Here comes the need for ultra-deformable lipid vesicles to provide the drug beyond the stratum corneum. Transethosomes are novel ultra-deformable vesicles that can deliver drugs into deeper tissues. The composition of transethosomes includes phospholipid, ethanol and surfactants. Each ingredient has a pivotal role in the properties of the carrier. This review covers the design, preparation method, characterisation, and characteristics of the novel vesicle. Also, we cover the impact of surfactants on vesicular properties and the skin permeation behaviour of novel vesicles.
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Affiliation(s)
- Alan Raj
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW 2007, Australia; Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Rajesh Sreedharan Nair
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor, Malaysia
| | - C Sarath Chandran
- Department of Pharmaceutics, College of Pharmaceutical Sciences, Government Medical College Kannur, Pariyaram, Kerala, India
| | - Angel Treasa Alex
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
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Caritá AC, Resende de Azevedo J, Chevalier Y, Arquier D, Vinícius Buri M, Riske KA, Ricci Leonardi Ideas G, Bolzinger MA. ELASTIC CATIONIC LIPOSOMES FOR VITAMIN C DELIVERY: DEVELOPMENT, CHARACTERIZATION AND SKIN ABSORPTION STUDY. Int J Pharm 2023; 638:122897. [PMID: 37003313 DOI: 10.1016/j.ijpharm.2023.122897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/10/2023] [Accepted: 03/25/2023] [Indexed: 04/01/2023]
Abstract
The influence of hydrophilic surfactants acting on the membrane elasticity of liposomes on the skin absorption of vitamin C is investigated. The purpose of encapsulation inside cationic liposomes is to improve the skin delivery of vitamin C. The properties of elastic liposomes (ELs) are compared to that of conventional liposomes (CLs). ELs are formed by the addition of the "edge activator" Polysorbate 80 to the CLs composed of soybean lecithin, cationic lipid DOTAP (1,2-dioleoyl-3-trimethylammoniopropane chloride), and cholesterol. The liposomes are characterized by dynamic light scattering and electron microscopy. No toxicity is detected in human keratinocyte cells. Evidences of Polysorbate 80 incorporation into liposome bilayers and of the higher flexibility of ELs are given by isothermal titration calorimetry and pore edge tension measurements in giant unilamellar vesicles. The presence of a positive charge in the liposomal membrane increases the encapsulation efficacy by approximately 30% for both CLs and ELs. Skin absorption of vitamin C from CLs, ELs and a control aqueous solution measured in Franz cells shows a high delivery of vitamin C into each skin layer and the acceptor fluid from both liposome types. These results suggest that another mechanism drives skin diffusion, involving interactions between cationic lipids and vitamin C depending on the skin pH.
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Costanzo M, Malatesta M. Diaminobenzidine Photooxidation to Visualize Fluorescent Nanoparticles in Adhering Cultured Cells at Transmission Electron Microscopy. Methods Mol Biol 2023; 2566:333-343. [PMID: 36152264 DOI: 10.1007/978-1-0716-2675-7_27] [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] [Indexed: 06/16/2023]
Abstract
Visualizing nanoparticles made of organic material (e.g., polysaccharides, proteins, non-osmiophilic lipids) inside cells and tissues at transmission electron microscopy is a difficult task due to the intrinsic weak electron density of these nanoconstructs, which makes them hardly distinguishable in the biological environment. We describe here a simple protocol to apply photooxidation to fluorescently labeled nanoparticles administered to cultured cells in vitro. The conversion of the fluorescent signal into a granular electron-dense reaction product through light irradiation in the presence of diaminobenzidine makes the nanoparticles clearly visible at the ultrastructural level. Our procedure proved to be reliable with various fluorophores and may be applied to any cell type.
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Affiliation(s)
- Manuela Costanzo
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona, Verona, Italy
| | - Manuela Malatesta
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona, Verona, Italy.
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Hassan AS, Hofni A, Abourehab MAS, Abdel-Rahman IAM. Ginger Extract-Loaded Transethosomes for Effective Transdermal Permeation and Anti-Inflammation in Rat Model. Int J Nanomedicine 2023; 18:1259-1280. [PMID: 36945254 PMCID: PMC10024879 DOI: 10.2147/ijn.s400604] [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: 12/07/2022] [Accepted: 02/21/2023] [Indexed: 03/15/2023] Open
Abstract
Introduction Ginger extract (GE) has sparked great interest due to its numerous biological benefits. However, it suffers from limited skin permeability, which challenges its transdermal application. The target of the current work was to develop transethosomes as a potential nanovehicle to achieve enhanced transdermal delivery of GE through the skin. Methods GE-loaded transethosomes were prepared by cold injection using different edge activators. The fabricated nanovesicles were evaluated for particle size, ζ-potential, encapsulation efficiency, and in vitro drug release. The selected formulation was then laden into the hydrogel system and evaluated for ex vivo permeability and in vivo anti-inflammatory activity in a carrageenan-induced rat-paw edema model. Results The selected formulation comprised of sodium deoxycholate exhibited particle size of 188.3±7.66 nm, ζ-potential of -38.6±0.08 mV, and encapsulation efficiency of 91.0%±0.24%. The developed transethosomal hydrogel containing hydroxypropyl methylcellulose was homogeneous, pseudoplastic, and demonstrated sustained drug release. Furthermore, it exhibited improved flux (12.61±0.45 μg.cm2/second), apparent skin permeability (2.43±0.008×10-6 cm/second), and skin deposition compared to free GE hydrogel. In vivo testing and histopathological examination revealed that the GE transethosomal hydrogel exhibited significant inhibition of edema swelling compared to free GE hydrogel and ketoprofen gel. The animals that were treated with ginger transethosome hydrogel showed a significant decrement in reactive oxygen species and prostaglandin E2 compared to untreated animals. Conclusion Transethosomes might be a promising new vehicle for GE for effective skin permeation and anti-inflammation. To the best of our knowledge, this work is the first utilization of transethosomes laden into hydrogel as a novel transdermal delivery system of GE.
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Affiliation(s)
- Abeer S Hassan
- Department of Pharmaceutics, Faculty of Pharmacy, South Valley University, Qena, Egypt
- Correspondence: Abeer S Hassan, Department of Pharmaceutics, Faculty of Pharmacy, South Valley University, Qena, Egypt, Tel +201012060262, Email
| | - Amal Hofni
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, South Valley University, Qena, Egypt
| | - Mohammed A S Abourehab
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Minia University, Minia, Egypt
| | - Iman A M Abdel-Rahman
- Department of Pharmacognosy, Faculty of Pharmacy, South Valley University, Qena, Egypt
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Calderan L, Carton F, Andreana I, Bincoletto V, Arpicco S, Stella B, Malatesta M. An ex vivo experimental system to track fluorescent nanoparticles inside skeletal muscle. Eur J Histochem 2022; 67:3596. [PMID: 36546417 PMCID: PMC9827424 DOI: 10.4081/ejh.2023.3596] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
The development of novel nanoconstructs for biomedical applications requires the assessment of their biodistribution, metabolism and clearance in single cells, organs and entire organisms in a living environment. To reduce the number of in vivo experiments performed and to refine the methods used, in accordance with the 3Rs principle, this work proposes an ex vivo experimental system to monitor, using fluorescence microscopy, the distribution of nanoparticles in explanted murine skeletal muscle maintained in a bioreactor that can preserve the structural and functional features of the organ for long periods of time. Fluorescently-labelled liposomes and poly(lactide-co-glycolide) (PLGA)-based nanoparticles were injected into the intact soleus muscle (in the distal region close to the tendon) immediately after explants, and their distribution was analysed at increasing incubation times in cross cryosections from the proximal region of the belly. Both nanocarriers were clearly recognized in the muscle and were found to enter and migrate inside the myofibres, whereas their migration in the connective tissue seemed to be limited. In addition, some fluorescent signals were observed inside the macrophages, demonstrating the physiological clearance of the nanocarriers that did not enter the myofibres. Our ex vivo system therefore provides more information than previous in vitro experiments on cultured muscle cells, highlighting the need for the appropriate functionalization of nanocarriers if myofibre targeting is to be improved.
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Affiliation(s)
- Laura Calderan
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona
| | - Flavia Carton
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona,*Present address: Department of Health Sciences, University of Piemonte Orientale “A. Avogadro”, Novara, Italy
| | - Ilaria Andreana
- Department of Drug Science and Technology, University of Turin, Italy
| | | | - Silvia Arpicco
- Department of Drug Science and Technology, University of Turin, Italy
| | - Barbara Stella
- Department of Drug Science and Technology, University of Turin, Italy
| | - Manuela Malatesta
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona,Correspondence: Prof. Manuela Malatesta, Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona, Strada Le Grazie 8, 37134 Verona, Italy. Tel. +39.045.8027569. .
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Esposito E, Calderan L, Galvan A, Cappellozza E, Drechsler M, Mariani P, Pepe A, Sguizzato M, Vigato E, Dalla Pozza E, Malatesta M. Ex Vivo Evaluation of Ethosomes and Transethosomes Applied on Human Skin: A Comparative Study. Int J Mol Sci 2022; 23. [PMID: 36499432 DOI: 10.3390/ijms232315112] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
In this study, the transdermal fate of vesicular nanosystems was investigated. Particularly, ethosomes based on phosphatidylcholine 0.9% w/w and transethosomes based on phosphatidylcholine 0.9 or 2.7% w/w plus polysorbate 80 0.3% w/w as an edge activator were prepared and characterized. The vesicle mean size, morphology and deformability were influenced by both phosphatidylcholine and polysorbate 80. Indeed, the mean diameters of ethosome were around 200 nm, while transethosome's mean diameters were 146 or 350 nm in the case of phosphatidylcholine 0.9 or 2.7%, w/w, respectively. The highest deformability was achieved by transethosomes based on phosphatidylcholine 0.9%, w/w. The three types of vesicular nanosystems were applied on explanted human skin maintained in a bioreactor. Transmission electron microscopy demonstrated that all vesicles were able to enter the skin, keeping their structural integrity. Notably, the vesicle penetration capability was influenced by their physical-chemical features. Indeed, ethosomes reached keratinocytes and even the dermis, phosphatidylcholine 0.9% transethosomes were found in keratinocytes and phosphatidylcholine 2.7% transethosomes were found only in corneocytes of the outer layer. These findings open interesting perspectives for a differentiated application of these vesicles for transdermal drug delivery as a function of the cutaneous pathology to be addressed.
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Carton F, Malatesta M. Assessing the interactions between nanoparticles and biological barriers in vitro: a new challenge for microscopy techniques in nanomedicine. Eur J Histochem 2022; 66. [DOI: 10.4081/ejh.2022.3603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
Nanoconstructs intended to be used as biomedical tool must be assessed for their capability to cross biological barriers. However, studying in vivo the permeability of biological barriers to nanoparticles is quite difficult due to the many structural and functional factors involved. Therefore, the in vitro modeling of biological barriers -2D cell monocultures, 2D/3D cell co-cultures, microfluidic devices- is gaining more and more relevance in nanomedical research. Microscopy techniques play a crucial role in these studies, as they allow both visualizing nanoparticles inside the biological barrier and evaluating their impact on the barrier components. This paper provides an overview of the various microscopical approaches used to investigate nanoparticle translocation through in vitro biological barrier models. The high number of scientific articles reported highlights the great contribution of the morphological and histochemical approach to the knowledge of the dynamic interactions between nanoconstructs and the living environment.
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Carton F, Malatesta M. In Vitro Models of Biological Barriers for Nanomedical Research. Int J Mol Sci 2022; 23:8910. [PMID: 36012181 PMCID: PMC9408841 DOI: 10.3390/ijms23168910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/06/2022] [Accepted: 08/08/2022] [Indexed: 12/13/2022] Open
Abstract
Nanoconstructs developed for biomedical purposes must overcome diverse biological barriers before reaching the target where playing their therapeutic or diagnostic function. In vivo models are very complex and unsuitable to distinguish the roles plaid by the multiple biological barriers on nanoparticle biodistribution and effect; in addition, they are costly, time-consuming and subject to strict ethical regulation. For these reasons, simplified in vitro models are preferred, at least for the earlier phases of the nanoconstruct development. Many in vitro models have therefore been set up. Each model has its own pros and cons: conventional 2D cell cultures are simple and cost-effective, but the information remains limited to single cells; cell monolayers allow the formation of cell–cell junctions and the assessment of nanoparticle translocation across structured barriers but they lack three-dimensionality; 3D cell culture systems are more appropriate to test in vitro nanoparticle biodistribution but they are static; finally, bioreactors and microfluidic devices can mimicking the physiological flow occurring in vivo thus providing in vitro biological barrier models suitable to reliably assess nanoparticles relocation. In this evolving context, the present review provides an overview of the most representative and performing in vitro models of biological barriers set up for nanomedical research.
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Ferrara F, Benedusi M, Cervellati F, Sguizzato M, Montesi L, Bondi A, Drechsler M, Pula W, Valacchi G, Esposito E. Dimethyl Fumarate-Loaded Transethosomes: A Formulative Study and Preliminary Ex Vivo and In Vivo Evaluation. Int J Mol Sci 2022; 23:ijms23158756. [PMID: 35955900 PMCID: PMC9369351 DOI: 10.3390/ijms23158756] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/26/2022] [Accepted: 08/04/2022] [Indexed: 11/18/2022] Open
Abstract
In this study, transethosomes were investigated as potential delivery systems for dimethyl fumarate. A formulative study was performed investigating the effect of the composition of transethosomes on the morphology and size of vesicles, as well as drug entrapment capacity, using cryogenic transmission electron microscopy, photon correlation spectroscopy, and HPLC. The stability of vesicles was evaluated, both for size increase and capability to control the drug degradation. Drug release kinetics and permeability profiles were evaluated in vitro using Franz cells, associated with different synthetic membranes. The in vitro viability, as well as the capacity to improve wound healing, were evaluated in human keratinocytes. Transmission electron microscopy enabled the evaluation of transethosome uptake and intracellular fate. Based on the obtained results, a transethosome gel was further formulated for the cutaneous application of dimethyl fumarate, the safety of which was evaluated in vivo with a patch test. It was found that the phosphatidylcholine concentration affected vesicle size and lamellarity, influencing the capacity to control dimethyl fumarate’s chemical stability and release kinetics. Indeed, phosphatidylcholine 2.7% w/w led to multivesicular vesicles with 344 nm mean size, controlling the drug’s chemical stability for at least 90 days. Conversely, phosphatidylcholine 0.9% w/w resulted in 130 nm sized unilamellar vesicles, which maintained 55% of the drug over 3 months. These latest kinds of transethosomes were able to improve wound healing in vitro and were easily internalised by keratinocytes. The selected transethosome gel, loading 25 mg/mL dimethyl fumarate, was not irritant after cutaneous application under occlusion, suggesting its possible suitability in the treatment of wounds caused by diabetes mellitus or peripheral vascular diseases.
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Affiliation(s)
- Francesca Ferrara
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - Mascia Benedusi
- Department of Neurosciences and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy
| | - Franco Cervellati
- Department of Neurosciences and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy
| | - Maddalena Sguizzato
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - Leda Montesi
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy
| | - Agnese Bondi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - Markus Drechsler
- Bavarian Polymer Institute (BPI) Keylab “Electron and Optical Microscopy”, University of Bayreuth, D-95440 Bayreuth, Germany
| | - Walter Pula
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
| | - Giuseppe Valacchi
- Animal Science Department, Plants for Human Health Institute, NC Research Campus, NC State University, Kannapolis, NC 28081, USA
- Department of Environmental Sciences and Prevention, University of Ferrara, I-44121 Ferrara, Italy
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea
| | - Elisabetta Esposito
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
- Correspondence:
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Li L, Wang H, Ye J, Chen Y, Wang R, Jin D, Liu Y. Mechanism Study on Nanoparticle Negative Surface Charge Modification by Ascorbyl Palmitate and Its Improvement of Tumor Targeting Ability. Molecules 2022; 27. [PMID: 35889281 DOI: 10.3390/molecules27144408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/04/2022] [Accepted: 07/06/2022] [Indexed: 11/16/2022] Open
Abstract
Surface charge polarity and density influence the immune clearance and cellular uptake of intravenously administered lipid nanoparticles (LNPs), thus determining the efficiency of their delivery to the target. Here, we modified the surface charge with ascorbyl palmitate (AsP) used as a negatively charged lipid. AsP-PC-LNPs were prepared by dispersion and ultrasonication of AsP and phosphatidylcholine (PC) composite films at various ratios. AsP inserted into the PC film with its polar head outward. The pKa for AsP was 4.34, and its ion form conferred the LNPs with negative surface charge. Zeta potentials were correlated with the amount and distribution of AsP on the LNPs surface. DSC, Raman and FTIR spectra, and molecular dynamics simulations disclosed that AsP distributed homogeneously in PC at 1−8% (w/w), and there were strong hydrogen bonds between the polar heads of AsP and PC (PO2−), which favored LNPs’ stability. But at AsP:PC > 8% (w/w), the excessive AsP changed the interaction modes between AsP and PC. The AsP−PC composite films became inhomogeneous, and their phase transition behaviors and Raman and FTIR spectra were altered. Our results clarified the mechanism of surface charge modification by AsP and provided a rational use of AsP as a charged lipid to modify LNP surface properties in targeted drug delivery systems. Furthermore, AsP−PC composites were used as phospholipid-based biological membranes to prepare paclitaxel-loaded LNPs, which had stable surface negative charge, better tumor targeting and tumor inhibitory effects.
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Jafari A, Daneshamouz S, Ghasemiyeh P, Mohammadi-Samani S. Ethosomes as dermal/transdermal drug delivery systems: applications, preparation and characterization. J Liposome Res 2022; 33:34-52. [PMID: 35695714 DOI: 10.1080/08982104.2022.2085742] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Transdermal drug delivery systems (TDDSs) have gained substantial attention during the last decade. TDDS are versatile delivery systems in which active components are delivered to skin for local effects or systemic delivery of active pharmaceutical through the skin. Overcoming stratum corneum is the most challenging step of delivering drugs through the skin. Lipid-based vesicular delivery systems due to the capability of the delivery of both hydrophilic and hydrophobic drugs are becoming more popular during the recent years. Ethosomes are innovative, biocompatible, biodegradable and non-toxic form of lipid-based vesicles that efficiently enable to entrap drugs of various physicochemical properties. These are other forms of liposome which contain high amounts of ethanol in their structure that enabling ethosomes to efficiently penetrate through deeper layers of skin. Ethosomes have various compositions based on their type but are mainly composed of phospholipids, ethanol, water and the active components. Ethosomes are easily manufactured and they are superior compared to liposomes in terms of different aspects due to the presence of ethanol. The purpose of this review is to thoroughly focus on various aspects of ethosomes, including mechanism of penetration, advantages and disadvantages, characterisation and applications.
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Affiliation(s)
- Atoosa Jafari
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Saeid Daneshamouz
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Parisa Ghasemiyeh
- Department of Clinical Pharmacy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.,Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Soliman Mohammadi-Samani
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.,Pharmaceutical Sciences Research Center, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Ferrara F, Benedusi M, Sguizzato M, Cortesi R, Baldisserotto A, Buzzi R, Valacchi G, Esposito E. Ethosomes and Transethosomes as Cutaneous Delivery Systems for Quercetin: A Preliminary Study on Melanoma Cells. Pharmaceutics 2022; 14:1038. [PMID: 35631628 PMCID: PMC9147749 DOI: 10.3390/pharmaceutics14051038] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/08/2022] [Accepted: 05/09/2022] [Indexed: 01/27/2023] Open
Abstract
The present study is aimed to design ethosomes and transethosomes for topical administration of quercetin. To overcome quercetin low bioavailability, scarce solubility and poor permeability that hamper its pharmaceutical use, the drug was loaded in ethosomes and transethosomes based on different concentrations of phosphatidylcholine. Vesicle morphology was studied by cryogenic transmission electron microscopy, while size distribution and quercetin entrapment capacity were evaluated up to 3 months, respectively, by photon correlation spectroscopy and high-performance liquid chromatography. The antioxidant property was studied by photochemiluminescence test. Quercetin release and permeation was investigated in vitro, using Franz cells associated to different membranes. In vitro assays were conducted on human keratinocytes and melanoma cells to study the behavior of quercetin-loaded nano-vesicular forms with respect to cell migration and proliferation. The results evidenced that both phosphatidylcholine concentration and quercetin affected the vesicle size. Quercetin entrapment capacity, antioxidant activity and size stability were controlled using transethosomes produced by the highest amount of phosphatidylcholine. In vitro permeation studies revealed an enhancement of quercetin permeation in the case of transethosomes with respect to ethosomes. Notably, scratch wound and migration assays suggested the potential of quercetin loaded-transethosomes as adjuvant strategy for skin conditions.
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Affiliation(s)
- Francesca Ferrara
- Department of Neuroscience and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy; (F.F.); (M.B.)
| | - Mascia Benedusi
- Department of Neuroscience and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy; (F.F.); (M.B.)
| | - Maddalena Sguizzato
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121-Ferrara, Italy or (M.S.); (R.C.)
| | - Rita Cortesi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121-Ferrara, Italy or (M.S.); (R.C.)
| | - Anna Baldisserotto
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy; (A.B.); (R.B.)
| | - Raissa Buzzi
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy; (A.B.); (R.B.)
| | - Giuseppe Valacchi
- Department of Environmental and Prevention Sciences, University of Ferrara, I-44121 Ferrara, Italy
- Plants for Human Health Institute, Department of Animal Science, NC Research Campus Kannapolis, NC State University, Kannapolis, NC 28081, USA
- Department of Food and Nutrition, Kyung Hee University, Seoul 130-701, Korea
| | - Elisabetta Esposito
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121-Ferrara, Italy or (M.S.); (R.C.)
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Affiliation(s)
- Manuela Malatesta
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, I-37134 Verona, Italy
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Malatesta M. Histochemistry for nanomedicine: Novelty in tradition. Eur J Histochem 2021; 65. [PMID: 34961299 PMCID: PMC8743982 DOI: 10.4081/ejh.2021.3376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 11/22/2022] Open
Abstract
During the last two centuries, histochemistry has provided significant advancements in many fields of life sciences. After a period of neglect due to the great development of biomolecular techniques, the histochemical approach has been reappraised and is now widely applied in the field of nanomedicine. In fact, the novel nanoconstructs intended for biomedical purposes must be visualized to test their interaction with tissue and cell components. To this aim, several long-established staining methods have been re-discovered and re-interpreted in an unconventional way for unequivocal identification of nanoparticulates at both light and transmission electron microscopy.
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Affiliation(s)
- Manuela Malatesta
- Department of Neurosciences, Biomedicine and Movement Sciences, Anatomy and Histology Section, University of Verona.
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Cristiano MC, Barone A, Mancuso A, Torella D, Paolino D. Rutin-Loaded Nanovesicles for Improved Stability and Enhanced Topical Efficacy of Natural Compound. J Funct Biomater 2021; 12:74. [PMID: 34940553 DOI: 10.3390/jfb12040074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/01/2021] [Accepted: 12/08/2021] [Indexed: 12/18/2022] Open
Abstract
Rutin is a natural compound with several pharmacological effects. Among these, antioxidant activity is one of the best known. Despite its numerous benefits, its topical application is severely limited by its physicochemical properties. For this reason, the use of suitable systems could be necessary to improve its delivery through skin, thus enhancing its pharmacological effects. In this regard, the aim of this work is to optimize the ethosomal dispersion modifying both lipid and ethanol concentrations and encapsulating different amounts of rutin. Characterization studies performed on the realized systems highlighted their great stability properties. Studies of encapsulation efficiency and loading degree allowed us to identify a better formulation (EE% 67.5 ± 5.2%, DL% 27 ± 1.7%), which was used for further analyses. The data recorded from in vitro studies showed that the encapsulation into these nanosystems allowed us to overcome the photosensitivity limitation of rutin. Indeed, a markable photostability of the loaded formulation was recorded, compared with that reported from the free rutin solution. The efficacy of the nanosystems was finally evaluated both in vitro on keratinocyte cells and in vivo on human healthy volunteers. The results confirmed the potentiality of rutin-loaded nanosystems for skin disease, mainly related to their anti-inflammatory and antioxidant effects.
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Malatesta M. Transmission Electron Microscopy as a Powerful Tool to Investigate the Interaction of Nanoparticles with Subcellular Structures. Int J Mol Sci 2021; 22:12789. [PMID: 34884592 DOI: 10.3390/ijms222312789] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/21/2021] [Accepted: 11/25/2021] [Indexed: 12/15/2022] Open
Abstract
Nanomedical research necessarily involves the study of the interactions between nanoparticulates and the biological environment. Transmission electron microscopy has proven to be a powerful tool in providing information about nanoparticle uptake, biodistribution and relationships with cell and tissue components, thanks to its high resolution. This article aims to overview the transmission electron microscopy techniques used to explore the impact of nanoconstructs on biological systems, highlighting the functional value of ultrastructural morphology, histochemistry and microanalysis as well as their fundamental contribution to the advancement of nanomedicine.
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Sguizzato M, Ferrara F, Mariani P, Pepe A, Cortesi R, Huang N, Simelière F, Boldrini P, Baldisserotto A, Valacchi G, Esposito E. "Plurethosome" as Vesicular System for Cutaneous Administration of Mangiferin: Formulative Study and 3D Skin Tissue Evaluation. Pharmaceutics 2021; 13:pharmaceutics13081124. [PMID: 34452085 PMCID: PMC8398752 DOI: 10.3390/pharmaceutics13081124] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/18/2021] [Accepted: 07/21/2021] [Indexed: 12/21/2022] Open
Abstract
Human skin is dramatically exposed to toxic pollutants such as ozone. To counteract the skin disorders induced by the air pollution, natural antioxidants such as mangiferin could be employed. A formulative study for the development of vesicular systems for mangiferin based on phosphatidylcholine and the block copolymer pluronic is described. Plurethosomes were designed for mangiferin transdermal administration and compared to ethosome and transethosome. Particularly, the effect of vesicle composition was investigated on size distribution, inner and outer morphology by photon correlation spectroscopy, small angle X-ray diffraction, and transmission electron microscopy. The potential of selected formulations as vehicles for mangiferin was studied, evaluating encapsulation efficiency and in vitro diffusion parameters by Franz cells. The mangiferin antioxidant capacity was verified by the 2,2-diphenyl-1-picrylhydrazyl assay. Vesicle size spanned between 200 and 550 nm, being influenced by phosphatidylcholine concentration and by the presence of polysorbate or pluronic. The vesicle supramolecular structure was multilamellar in the case of ethosome or plurethosome and unilamellar in the case of transethosome. A linear diffusion of mangiferin in the case of ethosome and transethosomes and a biphasic profile in the case of plurethosomes indicated the capability of multilamellar vesicles to retain the drug more efficaciously than the unilamellar ones. The antioxidant and anti-inflammatory potential effect of mangiferin against pollutants was evaluated on 3D human skin models exposed to O3. The protective effect exerted by plurethosomes and transethosomes suggests their possible application to enhance the cutaneous antioxidant defense status.
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Affiliation(s)
- Maddalena Sguizzato
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (R.C.)
| | - Francesca Ferrara
- Department of Neurosciences and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy;
| | - Paolo Mariani
- Department of Life and Environmental Sciences, Polytechnic University of Marche, I-60131 Ancona, Italy; (P.M.); (A.P.)
| | - Alessia Pepe
- Department of Life and Environmental Sciences, Polytechnic University of Marche, I-60131 Ancona, Italy; (P.M.); (A.P.)
| | - Rita Cortesi
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (R.C.)
| | - Nicolas Huang
- Institut Galien Paris-Saclay, CNRS, Université Paris-Saclay, 92296 Châtenay-Malabry, France; (N.H.); (F.S.)
| | - Fanny Simelière
- Institut Galien Paris-Saclay, CNRS, Université Paris-Saclay, 92296 Châtenay-Malabry, France; (N.H.); (F.S.)
| | - Paola Boldrini
- Center of Electron Microscopy, University of Ferrara, I-44121 Ferrara, Italy;
| | - Anna Baldisserotto
- Department of Life Sciences and Biotechnology, University of Ferrara, I-44121 Ferrara, Italy;
| | - Giuseppe Valacchi
- Department of Neurosciences and Rehabilitation, University of Ferrara, I-44121 Ferrara, Italy;
- Animal Science Department, NC Research Campus, Plants for Human Health Institute, NC State University, Kannapolis, NC 28081, USA
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Korea
- Correspondence: (G.V.); (E.E.); Tel.: +39-0532-455230 (E.E.)
| | - Elisabetta Esposito
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, I-44121 Ferrara, Italy; (M.S.); (R.C.)
- Correspondence: (G.V.); (E.E.); Tel.: +39-0532-455230 (E.E.)
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