1
|
Gregersen CH, Mearraoui R, Søgaard PP, Clergeaud G, Petersson K, Urquhart AJ, Simonsen JB. Lipid nanoparticles containing labile PEG-lipids transfect primary human skin cells more efficiently in the presence of apoE. Eur J Pharm Biopharm 2024; 197:114219. [PMID: 38368913 DOI: 10.1016/j.ejpb.2024.114219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/29/2024] [Accepted: 02/12/2024] [Indexed: 02/20/2024]
Abstract
Nucleic acid-based therapeutics encapsulated into lipid nanoparticles (LNPs) can potentially target the root cause of genetic skin diseases. Although nanoparticles are considered impermeable to skin, research and clinical studies have shown that nanoparticles can penetrate into skin with reduced skin barrier function when administered topically. Studies have shown that epidermal keratinocytes express the low-density lipoprotein receptor (LDLR) that mediates endocytosis of apolipoprotein E (apoE)-associated nanoparticles and that dermal fibroblasts express mannose receptors. Here we prepared LNPs designed to exploit these different endocytic pathways for intracellular mRNA delivery to the two most abundant skin cell types, containing: (i) labile PEG-lipids (DMG-PEG2000) prone to dissociate and facilitate apoE-binding to LNPs, enabling apoE-LDLR mediated uptake in keratinocytes, (ii) non-labile PEG-lipids (DSPE-PEG2000) to impose stealth-like properties to LNPs to enable targeting of distant cells, and (iii) mannose-conjugated PEG-lipids (DSPE-PEG2000-Mannose) to target fibroblasts or potentially immune cells containing mannose receptors. All types of LNPs were prepared by vortex mixing and formed monodisperse (PDI ∼ 0.1) LNP samples with sizes of 130 nm (±25%) and high mRNA encapsulation efficiencies (≥90%). The LNP-mediated transfection potency in keratinocytes and fibroblasts was highest for LNPs containing labile PEG-lipids, with the addition of apoE greatly enhancing transfection via LDLR. Coating LNPs with mannose did not improve transfection, and stealth-like LNPs show limited to no transfection. Taken together, our studies suggest using labile PEG-lipids and co-administration of apoE when exploring LNPs for skin delivery.
Collapse
Affiliation(s)
- Camilla Hald Gregersen
- Explorative Formulation & Technologies, CMC Design and Development, LEO Pharma A/S, 2750 Ballerup, Denmark; Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Razan Mearraoui
- Explorative Formulation & Technologies, CMC Design and Development, LEO Pharma A/S, 2750 Ballerup, Denmark; Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Pia Pernille Søgaard
- In Vitro Biology, Molecular Biomedicine, Research and early development, LEO Pharma A/S, 2750 Ballerup, Denmark
| | - Gael Clergeaud
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Karsten Petersson
- Explorative Formulation & Technologies, CMC Design and Development, LEO Pharma A/S, 2750 Ballerup, Denmark
| | - Andrew J Urquhart
- Department of Health Technology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Jens B Simonsen
- Explorative Formulation & Technologies, CMC Design and Development, LEO Pharma A/S, 2750 Ballerup, Denmark.
| |
Collapse
|
2
|
Dymek M, Olechowska K, Hąc-Wydro K, Sikora E. Liposomes as Carriers of GHK-Cu Tripeptide for Cosmetic Application. Pharmaceutics 2023; 15:2485. [PMID: 37896245 PMCID: PMC10610410 DOI: 10.3390/pharmaceutics15102485] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Liposomes are self-assembled spherical systems composed of amphiphilic phospholipids. They can be used as carriers of both hydrophobic and hydrophilic substances, such as the anti-aging and wound-healing copper-binding peptide, GHK-Cu (glycyl-L-histidyl-L-lysine). Anionic (AL) and cationic (CL) hydrogenated lecithin-based liposomes were obtained as GHK-Cu skin delivery systems using the thin-film hydration method combined with freeze-thaw cycles and the extrusion process. The influence of total lipid content, lipid composition and GHK-Cu concentration on the physicochemical properties of liposomes was studied. The lipid bilayer fluidity and the peptide encapsulation efficiency (EE) were also determined. Moreover, in vitro assays of tyrosinase and elastase inhibition were performed. Stable GHK-Cu-loaded liposome systems of small sizes (approx. 100 nm) were obtained. The bilayer fluidity was higher in the case of cationic liposomes. As the best carriers, 25 mg/cm3 CL and AL hydrated with 0.5 mg/cm3 GHK-Cu were selected with EE of 31.7 ± 0.9% and 20.0 ± 2.8%, respectively. The obtained results confirmed that the liposomes can be used as carriers for biomimetic peptides such as copper-binding peptide and that the GHK-Cu did not significantly affect the tyrosinase activity but led to 48.90 ± 2.50% elastase inhibition, thus reducing the rate of elastin degeneration and supporting the structural integrity of the skin.
Collapse
Affiliation(s)
- Michał Dymek
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland;
| | - Karolina Olechowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland; (K.O.); (K.H.-W.)
| | - Katarzyna Hąc-Wydro
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland; (K.O.); (K.H.-W.)
| | - Elżbieta Sikora
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland;
| |
Collapse
|
3
|
Shaw TK, Paul P, Chatterjee B. Research-based findings on scope of liposome-based cosmeceuticals: an updated review. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2022. [DOI: 10.1186/s43094-022-00435-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Cosmeceuticals are cosmetic products with biologically active components that have drug-like benefits. Cosmeceuticals are currently rapidly growing segments encompassing the personal care industry and numerous topical cosmetics-based therapies for treating different skin conditions. The barrier nature of skin causes limitations to topical treatment. The effectiveness of this cosmeceutical product has been enhanced a few folds by using nanotechnological modifications.
Main body
PubMed electronic searches for the literature were performed using combinations of the following terms: “cosmeceutical,” “liposome-based cosmeceuticals,” “acne and liposome,” “photo-aging and liposome,” “hyperpigmentation and liposome,” “wrinkles and liposome,” “fungal infections and liposome,” and “hair damage and liposome” from the earliest publication date available to January 5, 2022. Among the various nanotechnological approaches, liposomes offer numerous advantages such as topical cosmeceutical products, starting from improved moisturization, biodegradability, biocompatibility, enhanced permeation and retention, improved bioavailability of the active ingredients, increased esthetic appeal of cosmeceutical products, slow and extended dermal release. This review outlines various liposome-based cosmeceutical products that has been investigated to treat skin disorders such as photoaging, wrinkles, hyperpigmentation, hair damage and fungal infections.
Conclusion
Liposome-based cosmeceuticals provide a better opportunity to deliver therapeutic moiety for various skin conditions and offer potential promise for future clinical applications.
Graphical Abstract
Collapse
|
4
|
Abdallah MH, Elsewedy HS, AbuLila AS, Almansour K, Unissa R, Elghamry HA, Soliman MS. Quality by Design for Optimizing a Novel Liposomal Jojoba Oil-Based Emulgel to Ameliorate the Anti-Inflammatory Effect of Brucine. Gels 2021; 7:gels7040219. [PMID: 34842709 PMCID: PMC8628777 DOI: 10.3390/gels7040219] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/14/2022] Open
Abstract
One of the recent advancements in research is the application of natural products in developing newly effective formulations that have few drawbacks and that boost therapeutic effects. The goal of the current exploration is to investigate the effect of jojoba oil in augmenting the anti-inflammatory effect of Brucine natural alkaloid. This is first development of a formulation that applies Brucine and jojoba oil int a PEGylated liposomal emulgel proposed for topical application. Initially, various PEGylated Brucine liposomal formulations were fabricated using a thin-film hydration method. (22) Factorial design was assembled using two factors (egg Phosphatidylcholine and cholesterol concentrations) and three responses (particle size, encapsulation efficiency and in vitro release). The optimized formula was incorporated within jojoba oil emulgel. The PEGylated liposomal emulgel was inspected for its characteristics, in vitro, ex vivo and anti-inflammatory behaviors. Liposomal emulgel showed a pH of 6.63, a spreadability of 48.8 mm and a viscosity of 9310 cP. As much as 40.57% of Brucine was released after 6 h, and drug permeability exhibited a flux of 0.47 µg/cm2·h. Lastly, % of inflammation was lowered to 47.7, which was significant effect compared to other formulations. In conclusion, the anti-inflammatory influence of jojoba oil and Brucine was confirmed, supporting their integration into liposomal emulgel as a potential nanocarrier.
Collapse
Affiliation(s)
- Marwa H. Abdallah
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia; (A.S.A.); (K.A.); (R.U.); (M.S.S.)
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt;
- Correspondence:
| | - Heba S. Elsewedy
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Alhofuf 31982, Saudi Arabia;
| | - Amr S. AbuLila
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia; (A.S.A.); (K.A.); (R.U.); (M.S.S.)
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt;
| | - Khaled Almansour
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia; (A.S.A.); (K.A.); (R.U.); (M.S.S.)
| | - Rahamat Unissa
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia; (A.S.A.); (K.A.); (R.U.); (M.S.S.)
| | - Hanaa A. Elghamry
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt;
| | - Mahmoud S. Soliman
- Department of Pharmaceutics, College of Pharmacy, University of Ha’il, Ha’il 81442, Saudi Arabia; (A.S.A.); (K.A.); (R.U.); (M.S.S.)
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Cairo 11651, Egypt
| |
Collapse
|
5
|
Wang FC, Hudson PL, Burk K, Marangoni AG. Encapsulation of cycloastragenol in phospholipid vesicles enhances transport and delivery across the skin barrier. J Colloid Interface Sci 2021; 608:1222-1228. [PMID: 34735856 DOI: 10.1016/j.jcis.2021.10.143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 10/20/2021] [Accepted: 10/24/2021] [Indexed: 12/16/2022]
Abstract
Cycloastragenol (CA) is a plant saponin that functions as a telomerase activator, and it has been made as an oral anti-aging supplement and use as active ingredient in topical cosmetic products. The anti-aging performance in cosmetic products have only been evaluated by description of skin appearance, while direct topical penetration of CA across the skin barrier still needs to be confirmed. The objective of this work was to design encapsulation vehicles to deliver CA across the skin barrier using commercially available ingredients through scalable processes, and to prove its topical penetration. Phospholipid vesicles including liposomes, ethosomes, and transethosomes were prepared using soy and sunflower phospholipids and different penetration enhancers, including ethanol and surfactants. The loading capacity of CA was analyzed using high performance liquid chromatography, and the topical penetration of CA was evaluated using Franz diffusion cells with pig skin. Transethosomes using Tween 80, Span 40, or dicetylphosphate as the penetration enhancer showed better CA delivery across the skin barrier than ethosomes or emulsifier α-gels. Results of this work provide evidence that CA encapsulated in phospholipid vesicles can be transported across the skin barrier. These encapsulation systems could be used for the design of CA-containing anti-aging cosmetic products.
Collapse
Affiliation(s)
- Fan C Wang
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; Avaria Solutions Inc., 5-650 Jamieson Parkway, Cambridge, ON N3C 0A5, Canada.
| | - Philip L Hudson
- Avaria Solutions Inc., 5-650 Jamieson Parkway, Cambridge, ON N3C 0A5, Canada.
| | - Keith Burk
- Avaria Solutions Inc., 5-650 Jamieson Parkway, Cambridge, ON N3C 0A5, Canada.
| | - Alejandro G Marangoni
- Department of Food Science, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada.
| |
Collapse
|
6
|
Transdermal Delivery of Lidocaine-Loaded Elastic Nano-Liposomes with Microneedle Array Pretreatment. Biomedicines 2021; 9:biomedicines9060592. [PMID: 34071133 PMCID: PMC8224805 DOI: 10.3390/biomedicines9060592] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/16/2021] [Accepted: 05/18/2021] [Indexed: 12/20/2022] Open
Abstract
This study aimed to improve the transdermal delivery of lidocaine hydrochloride (LidH) using elastic nano-liposomes (ENLs) and microneedle (MN) array pretreatment. LidH-containing ENLs were prepared using soybean phosphatidylcholine and cholesterol, with Span 80 or Tween 80, using a reverse-phase evaporation method. The ENL particle size, stability, and encapsulation efficiency (EE) were characterized and optimized based on the component ratio, pH, and type of surfactant used. In vitro transdermal diffusion study was performed on MN-pretreated mouse skin using Franz diffusion cells. The anesthetic effects of LidH in various formulations after dermal application were evaluated in vivo in rats by measuring the tail withdrawal latency after photothermic stimulation. Stable LidH-loaded Tween 80 or Span 80 ENLs were obtained with particle sizes of 115.8 and 146.6 nm and EEs of 27% and 20%, respectively. The formulations did not exert any cytotoxicity in HaCaT cells. Tween 80 and Span 80 ENL formulations showed enhanced LidH delivery on pretreated mice skin in vitro and prolonged the anesthetic effect in vivo compared to that by LidH application alone. LidH-loaded ENLs applied to MN-pretreated skin can shorten the onset time and prolong the anesthetic effect safely, which merits their further optimization and practical application.
Collapse
|
7
|
Petit RG, Cano A, Ortiz A, Espina M, Prat J, Muñoz M, Severino P, Souto EB, García ML, Pujol M, Sánchez-López E. Psoriasis: From Pathogenesis to Pharmacological and Nano-Technological-Based Therapeutics. Int J Mol Sci 2021; 22:4983. [PMID: 34067151 PMCID: PMC8125586 DOI: 10.3390/ijms22094983] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/30/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022] Open
Abstract
Research in the pathogenesis of inflammatory skin diseases, such as skin dermatitis and psoriasis, has experienced some relevant breakthroughs in recent years. The understanding of age-related factors, gender, and genetic predisposition of these multifactorial diseases has been instrumental for the development of new pharmacological and technological treatment approaches. In this review, we discuss the molecular mechanisms behind the pathological features of psoriasis, also addressing the currently available treatments and novel therapies that are under clinical trials. Innovative therapies developed over the last 10 years have been researched. In this area, advantages of nanotechnological approaches to provide an effective drug concentration in the disease site are highlighted, together with microneedles as innovative candidates for drug delivery systems in psoriasis and other inflammatory chronic skin diseases.
Collapse
Affiliation(s)
- Robert Gironés Petit
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
| | - Amanda Cano
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
- Center for Biomedical Research in Neurodegenerative Diseases Network, Carlos III Health Institute, 28031 Madrid, Spain
| | - Alba Ortiz
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Marta Espina
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Josefina Prat
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Montserrat Muñoz
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Patrícia Severino
- University of Tiradentes (Unit) Av. Murilo Dantas, Aracaju 49010-390, Brazil;
- Institute of Technology and Research (ITP) Av. Murilo Dantas, Aracaju 49010-390, Brazil
| | - Eliana B. Souto
- CEB—Centre of Biological Engineering, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Faculty of Pharmacy, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Maria L. García
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
- Center for Biomedical Research in Neurodegenerative Diseases Network, Carlos III Health Institute, 28031 Madrid, Spain
| | - Montserrat Pujol
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Elena Sánchez-López
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy, University of Barcelona, 08028 Barcelona, Spain; (R.G.P.); (A.C.); (A.O.); (M.E.); (J.P.); (M.M.); (M.L.G.)
- Institute of Nanoscience and Nanotechnology, Universitat de Barcelona, 08028 Barcelona, Spain
- Center for Biomedical Research in Neurodegenerative Diseases Network, Carlos III Health Institute, 28031 Madrid, Spain
| |
Collapse
|
8
|
Bhat M, Pukale S, Singh S, Mittal A, Chitkara D. Nano-enabled topical delivery of anti-psoriatic small molecules. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102328] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
9
|
Sahu SK, Raj R, Raj PM, Alpana R. Topical Lipid Based Drug Delivery Systems for Skin Diseases: A Review. CURRENT DRUG THERAPY 2020. [DOI: 10.2174/1574885513666181112153213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Treatment of skin ailments through systemic administration is limited due to toxicity and
patients discomfort. Hence, lower risk of systemic side effects from topical dosage forms like ointments,
creams, emulsions and gels is more preferred for the treatment of skin disease. Application
of lipid based carriers in drug delivery in topical formulations has recently become one of the major
approaches to improve drug permeation, safety, and effectiveness. These delivery systems include
liposomes, ethosomes, transfersomes, Nanoemulsions (NEs), Solid Lipid Nanoparticles (SLNs)
Nanostructured Lipid Carriers (NLCs) and micelles. Most of the liposomes and SLNs based products
are in the market while some are under investigation. Transcutaneous delivery of therapeutics
to the skin layer by novel lipid based carriers has enhanced topical therapy for the treatment of skin
ailments. This article covers an overview of the lipid-based carriers for topical uses to alleviate skin
diseases.
Collapse
Affiliation(s)
- Suresh Kumar Sahu
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
| | - Rakesh Raj
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
| | - Pooja Mongia Raj
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
| | - Ram Alpana
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
| |
Collapse
|
10
|
Drug Delivery Systems for Vitamin D Supplementation and Therapy. Pharmaceutics 2019; 11:pharmaceutics11070347. [PMID: 31323777 PMCID: PMC6680748 DOI: 10.3390/pharmaceutics11070347] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/11/2019] [Accepted: 07/16/2019] [Indexed: 02/07/2023] Open
Abstract
Vitamin D (VD) is a fat-soluble prohormone well known for its role in regulating calcium and phosphate metabolism. It has been clinically used for many years to prevent rickets in children, osteomalacia, and osteoporosis in adults. VD insufficiency is a common medical condition, and many supplements are available in the market in order to increase serum 25-hydroxy VD levels to recommended amounts. Over the course of the last decades, it has become increasingly clear that calcitriol, an active form of VD, regulates multiple cellular processes with effects on normal and malignant cell growth and differentiation, and on the immune and cardiovascular function. Increasing evidence supports the role of the VD system in cancer prevention and therapy. Due to many pleiotropic and beneficial effects in extra-skeletal disorders, VD has gained potential and become an interesting active for encapsulation into drug delivery systems. The purpose of this review is to present the diversity of drug delivery systems that have been reported for VD or VD derivatives in an orderly manner across the following categories: Oral administration, application on the skin, cancer prevention/therapy, and other diseases or routes of administration.
Collapse
|
11
|
Effect of surface chemistry of polymeric nanoparticles on cutaneous penetration of cholecalciferol. Int J Pharm 2018; 553:120-131. [PMID: 30316003 DOI: 10.1016/j.ijpharm.2018.09.046] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/17/2018] [Accepted: 09/18/2018] [Indexed: 02/07/2023]
Abstract
We investigated the influence of nanoparticle (NP) surface composition on different aspects of skin delivery of a lipophilic drug: chemical stability, release and skin penetration. Cholecalciferol was chosen as a labile model drug. Poly(lactic acid) (PLA)-based NPs without surface coating, with a non-ionic poly(ethylene glycol) (PEG) coating, or with a zwitterionic poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) coating were prepared using flash nanoprecipitation. Process was optimized to obtain similar hydrodynamic diameters. Polymeric NPs were compared to non-polymeric cholecalciferol formulations. Cholecalciferol stability in aqueous medium was improved by polymeric encapsulation with a valuable effect of a hydrophilic coating. However, the in vitro release of the drug was found independent of the presence of any polymer, as for the drug penetration in an intact skin model. Such tendency was not observed in impaired skin since, when stratum corneum was removed, we found that a neutral hydrophilic coating around NPs reduced drug penetration compared to pure drug NPs and bare PLA NPs. The nature of the hydrophilic block (PEG or PMPC) had however no impact. We hypothesized that NPs surface influenced drug penetration in impaired skin due to different electrostatic interactions between NPs and charged skin components of viable skin layers.
Collapse
|
12
|
Gooris GS, Kamran M, Kros A, Moore DJ, Bouwstra JA. Interactions of dipalmitoylphosphatidylcholine with ceramide-based mixtures. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:1272-1281. [PMID: 29499188 DOI: 10.1016/j.bbamem.2018.02.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 02/22/2018] [Accepted: 02/26/2018] [Indexed: 12/21/2022]
Abstract
The outermost layer of the skin, the stratum corneum (SC), acts as the natural physical barrier. The SC consists of corneocytes embedded in a crystalline lipid matrix consisting of ceramides, free fatty acids and cholesterol. Although phospholipids are frequently present in topical formulations, no detailed information is reported on the interactions between phospholipids and SC lipids. The aim of this study was to examine the interactions between a model phospholipid, dipalmitoylphosphatidylcholine (DPPC) and synthetic ceramide-based mixtures (referred to as SC lipids). (Perdeuterated) DPPC was mixed with SC lipids and the lipid organization and mixing properties were examined. The studies revealed that DPPC participates in the same lattice as SC lipids thereby enhancing a hexagonal packing. Even at a high DPPC level, no phase separated pure DPPC was observed. When a DPPC containing formulation is applied to the skin surface it must partition into the SC lipid matrix prior to any mixing with the SC lipids. To mimic this, DPPC was applied on top of a SC lipid membrane. DPPC applied in a liquid crystalline state was able to mix with the SC lipids and participated in the same lattice as the SC lipids. However, when DPPC was applied in a rippled gel-state very limited partitioning of DPPC into the SC lipid matrix occurred. Thus, when applied to the skin, liquid crystalline DPPC will have very different interactions with SC lipids than DPPC in a (rippled-)gel phase.
Collapse
Affiliation(s)
- G S Gooris
- Leiden Academic Centre for Drug Research, Leiden University, Gorlaeus laboratories, 2333 CC Leiden, The Netherlands
| | - M Kamran
- Leiden Academic Centre for Drug Research, Leiden University, Gorlaeus laboratories, 2333 CC Leiden, The Netherlands
| | - A Kros
- Leiden Institute of Chemistry, Leiden University, Gorleaus laboratories, 2333 CC Leiden, The Netherlands
| | - D J Moore
- GSK Consumer Healthcare, 184 Liberty Corner Road, Warren, NJ, United States of America
| | - J A Bouwstra
- Leiden Academic Centre for Drug Research, Leiden University, Gorlaeus laboratories, 2333 CC Leiden, The Netherlands.
| |
Collapse
|
13
|
Potential enhancement and targeting strategies of polymeric and lipid-based nanocarriers in dermal drug delivery. Ther Deliv 2017; 8:967-985. [DOI: 10.4155/tde-2017-0075] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Nanocarriers used for alternative drug-delivery strategies have gained interest due to improved penetration and delivery of drugs into specific regions of the skin in recent years. Dermal drug delivery via polymeric-based nanocarriers (polymeric nanoparticles, micelles, dendrimers) and lipid-based nanocarriers (solid–lipid nanoparticles and nanostructured lipid carriers, vesicular nanocarriers including liposomes, niosomes, transfersomes and ethosomes) has been widely investigated. Although penetration of nanocarriers through the intact skin could be restricted, these carriers are particularly considered as feasible for the treatment of dermatological diseases in which the skin barrier is disrupted and also for follicular delivery of drugs for management of skin disorders such as acne. This review mainly highlights the recent approaches on potential penetration enhancement and targeting mechanisms of these nanocarriers.
Collapse
|
14
|
Ji J, Torrealba D, Ruyra À, Roher N. Nanodelivery Systems as New Tools for Immunostimulant or Vaccine Administration: Targeting the Fish Immune System. BIOLOGY 2015; 4:664-96. [PMID: 26492276 PMCID: PMC4690013 DOI: 10.3390/biology4040664] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 09/30/2015] [Accepted: 10/09/2015] [Indexed: 11/24/2022]
Abstract
Fish disease treatments have progressed significantly over the last few years and have moved from the massive use of antibiotics to the development of vaccines mainly based on inactivated bacteria. Today, the incorporation of immunostimulants and antigens into nanomaterials provide us with new tools to enhance the performance of immunostimulation. Nanoparticles are dispersions or solid particles designed with specific physical properties (size, surface charge, or loading capacity), which allow controlled delivery and therefore improved targeting and stimulation of the immune system. The use of these nanodelivery platforms in fish is in the initial steps of development. Here we review the advances in the application of nanoparticles to fish disease prevention including: the type of biomaterial, the type of immunostimulant or vaccine loaded into the nanoparticles, and how they target the fish immune system.
Collapse
Affiliation(s)
- Jie Ji
- Institut de Biotecnologia i de Biomedicina-Parc de Recerca UAB, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain.
| | - Debora Torrealba
- Institut de Biotecnologia i de Biomedicina-Parc de Recerca UAB, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain.
| | - Àngels Ruyra
- Institut de Biotecnologia i de Biomedicina-Parc de Recerca UAB, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain.
| | - Nerea Roher
- Institut de Biotecnologia i de Biomedicina-Parc de Recerca UAB, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain.
| |
Collapse
|
15
|
Functionalized Lipid Particulates in Targeted Drug Delivery. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1007/978-3-319-11355-5_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
16
|
Nanomaterials Release from Nano-Enabled Products. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2015. [DOI: 10.1007/698_2015_409] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
|
17
|
Wang J, Guo F, Ma M, Lei M, Tan F, Li N. Nanovesicular system containing tretinoin for dermal targeting delivery and rosacea treatment: a comparison of hexosomes, glycerosomes and ethosomes. RSC Adv 2014. [DOI: 10.1039/c4ra08488h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
18
|
Chen J, He CQ, Lin AH, Xu F, Wang F, Zhao B, Liu X, Chen ZP, Cai BC. Brucine-loaded liposomes composed of HSPC and DPPC at different ratios: in vitro and in vivo evaluation. Drug Dev Ind Pharm 2014; 40:244-51. [PMID: 23600656 DOI: 10.3109/03639045.2012.756009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE The objective of this study is to test the hypothesis that the phase transition temperature (T(m)), the main property of liposomes, can be easily controlled by changing the molar ratio of hydrogenated soy phosphatidylcholine (HSPC) and 1,2-dipalmitoyl-sn-glycero-3-phosphacholine (DPPC) after drug encapsulation. MATERIALS AND METHODS Brucine, an antitumor alkaloid, was encapsulated into the liposomes with different HSPC/DPPC compositions. The T(m)s of the brucine-loaded liposomes (BLs) were determined by differential scanning calorimetry (DSC). Then the physicochemical properties and pharmacokinetics of the BLs with different HSPC/DPPC compositions were investigated and compared. RESULTS The results of DSC revealed that HSPC and DPPC can combine into one phase. The findings of molecular modeling study suggested that HSPC interacts with DPPC via electrostatic interaction. The molar ratio of HSPC/DPPC influenced the sizes of BLs but had little effect on the entrapment efficiency (EE). The stability of BLs was improved with the increase of the HSPC ratios, especially with the presence of plasma. Following i.v. administration, it was found that AUC values of BLs in vivo were directly related to the HSPC/DPPC ratios of BLs, namely the T(m)s of BLs. DISCUSSION The behavior of liposomes, especially in vivo pharmacokinetic behavior, can be controlled by the modification of T(m). CONCLUSION The characterization of BLs in vitro and in vivo had demonstrated that the Tm could be flexibly modified for liposomes composed of both HSPC and DPPC. Using HSPC/DPPC composition may be an efficient strategy to control the T(m), thus control the in vivo pharmacokinetic behavior, of BLs.
Collapse
Affiliation(s)
- Jun Chen
- National First-Class Key Discipline for Traditional Chinese Medicine, Nanjing University of Chinese Medicine , Nanjing , P.R. China
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Influence of lecithin-lipid composition on physico-chemical properties of nanoliposomes loaded with a hydrophobic molecule. Colloids Surf B Biointerfaces 2013; 115:197-204. [PMID: 24355384 DOI: 10.1016/j.colsurfb.2013.11.034] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Revised: 11/14/2013] [Accepted: 11/15/2013] [Indexed: 11/22/2022]
Abstract
In this work, we studied the effect of nanoliposome composition based on phospholipids of docosahexaenoic acid (PL-DHA), salmon and soya lecithin, on physico-chemical characterization of vector. Cinnamic acid was encapsulated as a hydrophobic molecule in nanoliposomes made of three different lipid sources. The aim was to evaluate the influence of membrane lipid structure and composition on entrapment efficiency and membrane permeability of cinnamic acid. These properties are important for active molecule delivery. In addition, size, electrophoretic mobility, phase transition temperature, elasticity and membrane fluidity were measured before and after encapsulation. The results showed a correlation between the size of the nanoliposome and the entrapment. The entrapment efficiency of cinnamic acid was found to be the highest in liposomes prepared from salmon lecithin. The nanoliposomes composed of salmon lecithin presented higher capabilities as a carrier for cinnamic acid encapsulation. These vesicles also showed a high stability which in turn increases the membrane rigidity of nanoliposome as evaluated by their elastic properties, membrane fluidity and phase transition temperature.
Collapse
|
20
|
Chen J, Lu WL, Gu W, Lu SS, Chen ZP, Cai BC. Skin permeation behavior of elastic liposomes: role of formulation ingredients. Expert Opin Drug Deliv 2013; 10:845-56. [PMID: 23550630 DOI: 10.1517/17425247.2013.779252] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION With the incorporation of edge activators into the lipid bilayer structure, elasticity properties are given to liposomes. Regardless of the debate over the precise permeation mechanism of elastic liposomes, these vesicles have been proven to enhance drug permeation into or through skin in most cases. AREAS COVERED This article provides an overview of the formulation ingredients of elastic liposomes and their relationship with skin permeation behavior. The ingredients are divided into two categories of basic and optional ingredients. The effect of stability on permeation behavior of the vesicles is highlighted. EXPERT OPINION More attention should be paid to the stability of elastic liposomes. The different stability properties of the elastic liposomes following administration can induce different skin permeation behaviors of the vesicles. It is necessary to select the optimum composition of the elastic liposomes in order to control the stability and permeation behavior of the vesicles into or through the skin. Moreover, for the development of elastic liposomes, particular attention should also be paid to the drug leakage from the vesicles during long-term storage. The application of optional ingredients to improve the stability and/or elasticity of the elastic liposomes is becoming a new trend.
Collapse
Affiliation(s)
- Jun Chen
- Nanjing University of Chinese Medicine, School of Pharmacy, Nanjing, PR China
| | | | | | | | | | | |
Collapse
|
21
|
Badilli U, Amasya G, Şen T, Tarimci N. Topical emulgel formulation containing inclusion complex of calcipotriol with cyclodextrin. J INCL PHENOM MACRO 2013. [DOI: 10.1007/s10847-013-0293-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
22
|
Foss Hansen S, Nolde Nielsen K, Knudsen N, Grieger KD, Baun A. Operationalization and application of "early warning signs" to screen nanomaterials for harmful properties. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2013; 15:190-203. [PMID: 24592436 DOI: 10.1039/c2em30571b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
In 2001 the European Environment Agency (EEA) published a report that analyzed 14 cases of technological developments that later on turned out to have negative side-effects and they identified 12 “late lessons” for current and future policy-makers to bear in mind when initiating new technological endeavors. This paper explores how the first lesson – “Acknowledge and respond to ignorance, uncertainty and risk in technology appraisal” could be applied to screen nanomaterials. In cases of ignorance, uncertainty and risk, the EEA recommends paying particular attention to important warning signs such as novelty, persistency, whether materials are readily dispersed in the environment, and whether they bioaccumulate or lead to potentially irreversible action. Through an analysis of these criteria using five well-known nanomaterials (titanium dioxide, carbon nanotubes, liposomes, poly(lactic-co-glycolic acid) and nanoscale zero-valent iron), it was found that only nanoTiO2 fulfils all the five criteria. Depending on the length of the nanotubes, carbon nanotubes fulfil 3 or 4 criteria whereas liposomes, poly(lactic-co-glycolic acid), nanoscale zero-valent iron fulfil only one criteria. Finally, we discuss how these warning signs can be used by different stakeholders such as nanomaterial researchers and developers, companies and regulators to design benign nanomaterials, communicate what is known about nano-risks and decide on whether to implement precautionary regulatory measures.
Collapse
|
23
|
Simultaneous Determination of Clobetasol Propionate and Calcipotriol in a Novel Fixed Dose Emulgel Formulation by LC-UV. Chromatographia 2012. [DOI: 10.1007/s10337-012-2380-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
24
|
Development of a novel drug delivery system consisting of an antitumor agent tocopheryl succinate. J Control Release 2012; 161:843-51. [DOI: 10.1016/j.jconrel.2012.05.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2012] [Revised: 05/14/2012] [Accepted: 05/15/2012] [Indexed: 12/11/2022]
|
25
|
Hurler J, Berg OA, Skar M, Conradi AH, Johnsen PJ, Skalko-Basnet N. Improved burns therapy: liposomes-in-hydrogel delivery system for mupirocin. J Pharm Sci 2012; 101:3906-15. [PMID: 22777770 DOI: 10.1002/jps.23260] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 05/20/2012] [Accepted: 06/15/2012] [Indexed: 11/05/2022]
Abstract
Wounds, particularly burns, are prone to colonization of potentially life-threatening bacteria. Local delivery of antimicrobial agents in sufficient quantities and over longer period of time can reduce risk of burn infections. Mupirocin-in-liposomes-in-hydrogels were proposed as advanced delivery system for improved burn therapy. Mupirocin was entrapped in phosphatidylcholine liposomes of various sizes, namely larger (micron size) vesicles entrapping 74% of drug and sonicated vesicles (below 300 nm) entrapping 49% of drug. Liposomes containing mupirocin were incorporated in chitosan hydrogels (10%, w/w). Incorporation of liposomes in hydrogels resulted in prolonged release of liposomally associated mupirocin, as observed in both in vitro and ex vivo studies. The drug release was affected by the vesicle size. Microbiological evaluation of newly developed system confirmed its antimicrobial potential against Staphylococcus aureus and Bacillus subtilis. Bioadhesiveness of the system was compared with the marketed cream containing mupirocin. Our system exhibited superior bioadhesiveness and sustained mupirocin release profiles to marketed product.
Collapse
Affiliation(s)
- Julia Hurler
- Drug Transport and Delivery Research Group, Department of Pharmacy, Faculty of Health Sciences, University of Tromsø, Tromsø N-9037, Norway
| | | | | | | | | | | |
Collapse
|
26
|
Knudsen NØ, Rønholt S, Salte RD, Jorgensen L, Thormann T, Basse LH, Hansen J, Frokjaer S, Foged C. Calcipotriol delivery into the skin with PEGylated liposomes. Eur J Pharm Biopharm 2012; 81:532-9. [PMID: 22538098 DOI: 10.1016/j.ejpb.2012.04.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 04/03/2012] [Accepted: 04/10/2012] [Indexed: 11/18/2022]
Abstract
The D-vitamin analogue calcipotriol is commonly used for topical treatment of psoriasis, but skin penetration is required for calcipotriol to reach its pharmacological target: the keratinocytes in the lower epidermis. Liposomes can enhance the delivery of drugs into the skin, but a major challenge for the development of dosage forms containing liposomes is to maintain the colloidal stability in the formulation. The purpose of this study was to investigate the effect of stabilising liposomes with the lipopolymer poly(ethylene glycol)-distearoylphosphoethanolamine (PEG-DSPE) on the physicochemical properties of the liposomes and the ability to deliver membrane-intercalated calcipotriol into the skin. Inclusion of 0.5, l and 5 mol% PEG-DSPE in the membrane enhanced the colloidal stability of the liposomes without compromising the delivery of calcipotriol from the vehicle into excised pig skin. Calcipotriol-loaded liposomes with 1 mol% PEG-DSPE did even provide for a significantly increased deposition of calcipotriol into the stratum corneum. The size of the liposomes affected the penetration of calcipotriol into the stratum corneum since small unilamellar vesicles enhanced calcipotriol penetration as compared to large multilamellar vesicles, indicating that the liposomes to some extent migrate as intact vesicles into the stratum corneum. However, calcipotriol penetrated the skin better than the lipid component of the liposomes, suggesting that at least a fraction of the drug is released from the liposomes during skin migration. In conclusion, PEGylation is therefore a promising approach for stabilising calcipotriol-containing liposomal dispersions without compromising their favourable skin accumulation properties.
Collapse
|
27
|
Chen J, Cheng D, Li J, Wang Y, Guo JX, Chen ZP, Cai BC, Yang T. Influence of lipid composition on the phase transition temperature of liposomes composed of both DPPC and HSPC. Drug Dev Ind Pharm 2012; 39:197-204. [PMID: 22443684 DOI: 10.3109/03639045.2012.668912] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Phase transition of the lipid membrane is one of the most important properties of liposomes. The objective of this study was to investigate the influence of molar ratio of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and hydrogenated soy phosphatidylcholine (HSPC) on the phase transition temperature (T(m)) of the liposomes. MATERIALS AND METHODS The T(m)s of the liposomes with different phosphatidylcholine (PC) composition were determined by calcein release test and differential scanning calorimetry (DSC). RESULTS Only one phase transition was observed for liposomes composed of both DPPC and HSPC, indicating that DPPC and HSPC might combine into one phase with single phase transition. The T(m) of the liposomes composed of both DPPC and HSPC was directly dependent on the molar ratio of the two PCs. Moreover, DPPC percentage and T(m) relationship could be fitted with a linear equation (r(2) > 0.98). In addition, the serum stability of the liposomes at 37°C was directly increased with the increase of DPPC percentage. When 10% DSPE-PEG2000 was added, the significant increase of calcein release at T(m) and decrease at 37°C were observed. DISCUSSION It is easy to obtain liposomes with a T(m) in between that of DPPC and HSPC by modifying the molar ratio of DPPC and HSPC. CONCLUSION With the modification of T(m), the liposomes containing various ratios of DPPC and HSPC may have promising application potential in the field of thermosensitive liposomes (TSLs). After 10% DSPE-PEG2000 is added, a formulation of sterically stabilized liposomes with the proper thermal sensitivity can be obtained.
Collapse
Affiliation(s)
- Jun Chen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, PR China
| | | | | | | | | | | | | | | |
Collapse
|
28
|
Pegoraro C, MacNeil S, Battaglia G. Transdermal drug delivery: from micro to nano. NANOSCALE 2012; 4:1881-1894. [PMID: 22334401 DOI: 10.1039/c2nr11606e] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Delivery across skin offers many advantages compared to oral or intravenous routes of drug administration. Skin however is highly impermeable to most molecules on the basis of size, hydrophilicity, lipophilicity and charge. For this reason it is often necessary to temporarily alter the barrier properties of skin for effective administration. This can be done by applying chemical enhancers, which alter the lipid structure of the top layer of skin (the stratum corneum, SC), by applying external forces such as electric currents and ultrasounds, by bypassing the stratum corneum via minimally invasive microneedles or by using nano-delivery vehicles that can cross and deliver their payload to the deeper layers of skin. Here we present a critical summary of the latest technologies used to increase transdermal delivery.
Collapse
Affiliation(s)
- Carla Pegoraro
- The Krebs Institute, Department of Biomedical Sciences, University of Sheffield, Firth Court, Western Bank, S10 2TN Sheffield, UK.
| | | | | |
Collapse
|
29
|
Design of cyclic RKKH peptide-conjugated PEG liposomes targeting the integrin α₂β₁ receptor. Int J Pharm 2012; 428:171-7. [PMID: 22414425 DOI: 10.1016/j.ijpharm.2012.02.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 02/19/2012] [Accepted: 02/26/2012] [Indexed: 12/28/2022]
Abstract
Peptide conjugation to the surface of stealth liposomes has been studied for liposomal drug targeting to cells expressing specific receptors to provide a site-specific drug delivery. This study investigated the potential of peptide-conjugated liposomes for targeting cells expressing the human integrin α(2)β(1) receptor. A 12 amino acid head-to-tail cyclic peptide derived from the Jararhagin protein containing the Arg-Lys-Lys-His (RKKH)-specific binding site was conjugated to the distal ends of poly(ethylene glycol) (PEG) chains on PEGylated liposomes. Epithelial cells expressing the receptor showed increased cellular association and uptake of peptide-conjugated liposomes at 4 °C, compared to liposomes conjugated with a non-specific peptide. The interaction between cells and peptide-conjugated liposomes was significantly increased at 37 °C suggesting that a possible uptake mechanism might be energy-dependent endocytosis. In keratinocyte cell cultures, the ligand-conjugated liposomes loaded with the vitamin D(3) analogue calcipotriol induced transcription of the gene encoding the antimicrobial peptide cathelicidin, which is activated through the vitamin D(3) receptor upon binding of vitamin D(3) analogues. This suggests that the liposomes are internalized and that calcipotriol is delivered intracellularly and released in an active form. In conclusion, the 12 amino acid head-to-tail cyclic RKKH peptide seems promising for targeting of liposomes to the integrin α(2)β(1) receptor.
Collapse
|
30
|
Manosroi A, Chutoprapat R, Abe M, Manosroi W, Manosroi J. Transdermal absorption enhancement of rice bran bioactive compounds entrapped in niosomes. AAPS PharmSciTech 2012; 13:323-35. [PMID: 22258804 PMCID: PMC3299446 DOI: 10.1208/s12249-012-9751-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 01/04/2012] [Indexed: 11/30/2022] Open
Abstract
Niosomes composed of Tween 61 and cholesterol at 1:1 molar ratio were entrapped with the mixture of the three semi-purified rice (Oryza sativa L., Family Gramineae) bran bioactive compounds [ferulic acid (F), γ-oryzanol (O), and phytic acid (P)] at 0.5%, 1.5%, and 1.5%, respectively, by the supercritical CO(2) technique. The transdermal absorption by vertical Franz diffusion cells of the compounds entrapped in niosomes (Nio FOP), the unentrapped compounds (Mixed FOP), the compounds incorporated in gel and cream (Gel FOP and Cream FOP), and the compounds entrapped in niosomes and incorporated in gel and cream (Gel nio and Cream nio) was investigated. At 6 h, F and P from Nio FOP gave lower cumulative amount in viable epidermis and dermis (VED) than from Mixed FOP of 1.1 and 1.6 times, respectively, while O from Nio FOP exhibited higher cumulative amount in VED than from Mixed FOP of 2.4 times. The highest cumulative amount in VED of F, O, and P were from Gel nio, Cream nio, and Mixed FOP at 1.564 ± 0.052, 15.972 ± 0.273, and 25.857 ± 0.025 ng/cm(2), respectively. Niosomes enhanced the transdermal absorption of the hydrophobic compound O, while retarded the hydrophilic compounds F and P indicating the less systemic risk of F and P than O when entrapped in niosomes. Thus, transdermal absorption of F, O, and P appeared to depend on niosomal size, lipophilicity of the bioactive compounds, and types of formulations. These preclinical results can be applied for the design of the clinical study of the developed rice bran niosomal topical products.
Collapse
Affiliation(s)
- Aranya Manosroi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Thailand.
| | | | | | | | | |
Collapse
|