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Economic Analysis of a New Business for Liposome Manufacturing Using a High-Pressure System. Processes (Basel) 2020. [DOI: 10.3390/pr8121604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Supercritical assisted Liposome formation (SuperLip) is a lab-scale process for the production of liposomes. SuperLip was recognized as being a versatile supercritical assisted technique for the encapsulation of molecules for different industrial applications, such as pharmaceutic, cosmetic, textile, and nutraceutic purposes. The aim of this work was to perform an economic analysis to assess the profitability of the SuperLip process. The liposomes market was analyzed and the SuperLip process was compared to other techniques in terms of manufacturing advantages using the Canvas and Strengths, Weaknesses, Opportunities, and Treats (S.W.O.T.) models. SuperLip Plant Capital Expenditures (CAPEX) were estimated, and plant Operating Expenditures (OPEX) were also evaluated and integrated with personnel cost and other plant goods and services. A profit and loss statement was generated, together with a cash flow analysis. According to the market average selling price, liposome price is 1.8 €/mL; in order to join the market rapidly, the selling price of liposomes produced using SuperLip was set at 1.1 €/mL. A payback time has been identified at the fourth year of business. Economic indexes such as ROI and ROS were calculated on a 10-year business prospect, obtaining about a 230% return on investment and a 26.7% return on sales.
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102
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Aranguren A, Torres CE, Muñoz-Camargo C, Osma JF, Cruz JC. Synthesis of Nanoscale Liposomes via Low-Cost Microfluidic Systems. MICROMACHINES 2020; 11:mi11121050. [PMID: 33260732 PMCID: PMC7760644 DOI: 10.3390/mi11121050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/24/2020] [Accepted: 11/24/2020] [Indexed: 12/21/2022]
Abstract
We describe the manufacture of low-cost microfluidic systems to produce nanoscale liposomes with highly uniform size distributions (i.e., low polydispersity indexes (PDI)) and acceptable colloidal stability. This was achieved by exploiting a Y-junction device followed by a serpentine micromixer geometry to facilitate the diffusion between the mixing phases (i.e., continuous and dispersed) via advective processes. Two different geometries were studied. In the first one, the microchannels were engraved with a laser cutting machine on a polymethyl methacrylate (PMMA) sheet and covered with another PMMA sheet to form a two-layer device. In the second one, microchannels were not engraved but through-hole cut on a PMMA sheet and encased by a top and a bottom PMMA sheet to form a three-layer device. The devices were tested out by putting in contact lipids dissolved in alcohol as the dispersed phase and water as the continuous phase to self-assemble the liposomes. By fixing the total flow rate (TFR) and varying the flow rate ratio (FRR), we obtained most liposomes with average hydrodynamic diameters ranging from 188 ± 61 to 1312 ± 373 nm and 0.30 ± 0.09 PDI values. Such liposomes were obtained by changing the FRR from 5:1 to 2:1. Our results approached those obtained by conventional bulk synthesis methods such as a thin hydration bilayer and freeze-thaw, which produced liposomes with diameters ranging from 200 ± 38 to 250 ± 38 nm and 0.30 ± 0.05 PDI values. The produced liposomes might find several potential applications in the biomedical field, particularly in encapsulation and drug delivery.
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Affiliation(s)
- Andres Aranguren
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá DC 111711, Colombia;
| | - Carlos E. Torres
- Department of Biomedical Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá DC 111711, Colombia; (C.E.T.); (C.M.-C.)
| | - Carolina Muñoz-Camargo
- Department of Biomedical Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá DC 111711, Colombia; (C.E.T.); (C.M.-C.)
| | - Johann F. Osma
- Department of Electrical and Electronic Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá DC 111711, Colombia;
- Correspondence: (J.F.O.); (J.C.C.)
| | - Juan C. Cruz
- Department of Biomedical Engineering, Universidad de los Andes, Cra. 1E No. 19a-40, Bogotá DC 111711, Colombia; (C.E.T.); (C.M.-C.)
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
- Correspondence: (J.F.O.); (J.C.C.)
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Naziris N, Pippa N, Demetzos C. A Novel, Nontoxic and Scalable Process to Produce Lipidic Vehicles. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5035. [PMID: 33171678 PMCID: PMC7664659 DOI: 10.3390/ma13215035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/28/2020] [Accepted: 11/05/2020] [Indexed: 12/26/2022]
Abstract
Lipidic vehicles are novel industrial products, utilized as components for pharmaceutical, cosmeceutical and nutraceutical formulations. The present study concerns a newly invented method to produce lipidic vehicles in the nanoscale that is simple, nontoxic, versatile, time-efficient, low-cost and easy to scale up. The process is a modification of the heating method (MHM) and comprises (i) providing a mixture of an amphiphilic lipid and a charged lipid and/or a fluidity regulator in a liquid medium composed of water and a liquid polyol, (ii) stirring and heating the mixture in two heating steps, wherein the temperature of the second step is higher than the temperature of the first step and (iii) allowing the mixture to cool down to room temperature. The process leads to the self-assembly of nanoparticles of small size and good homogeneity, compared with conventional approaches that require additional size reduction steps. In addition, the incorporation of bioactive molecules, such as drugs, inside the nanoparticles is possible, while lyophilization of the products provides long-term stability. Most importantly, the absence of toxic solvents and the simplicity guarantee the safety and scalability of the process, distinguishing it from most prior art processes to produce of lipidic vehicles.
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Affiliation(s)
| | | | - Costas Demetzos
- Section of Pharmaceutical Technology, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 15771 Athens, Greece; (N.N.); (N.P.)
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Fonseca-Gomes J, Loureiro JA, Tanqueiro SR, Mouro FM, Ruivo P, Carvalho T, Sebastião AM, Diógenes MJ, Pereira MC. In vivo Bio-Distribution and Toxicity Evaluation of Polymeric and Lipid-Based Nanoparticles: A Potential Approach for Chronic Diseases Treatment. Int J Nanomedicine 2020; 15:8609-8621. [PMID: 33177821 PMCID: PMC7652571 DOI: 10.2147/ijn.s267007] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/12/2020] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Nanoparticles (NPs), as drug delivery systems, appear to be a promising tool for prolonged therapeutic strategies as they allow a controlled drug release over time. However, most of the studies found in the literature simply contemplate the use of a single or low number of dosages with low NPs concentrations. In the context of chronic diseases, like Alzheimer's disease, cancer or human immunodeficiency virus (HIV), where the therapeutic scheme is also chronic, studies with numerous repeated dosages are often neglected. METHODS We screened different NPs, polymeric and lipid-based, in a repeated-dose toxicity study, to evaluate the safety and tissue distribution of promising nanocarriers to be used in the treatment of long-lasting diseases. RESULTS After administrating 24 high concentrated doses of the selected NPs intraperitoneally (i.p.) (3 times a week for 2 months), animals have presented NPs accumulation in different tissues. However, neither toxicity, bodyweight changes nor clinical signs of disease were observed. DISCUSSION This work demonstrates no general adverse effects upon the studied NPs repeated-dose exposure, indicating the most promising NPs to be used in the different therapeutic circumstances, which may be useful in chronic diseases treatment.
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Affiliation(s)
- João Fonseca-Gomes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
| | - Joana A Loureiro
- LEPABE – Laboratory for Process Engineering, Environment, Biotechnology & Energy, Faculty of Engineering, University of Porto, Porto4200-465, Portugal
| | - Sara R Tanqueiro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
| | - Francisco M Mouro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
| | - Pedro Ruivo
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
| | - Tânia Carvalho
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
| | - Maria José Diógenes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
| | - Maria Carmo Pereira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa1649-028, Portugal
- LEPABE – Laboratory for Process Engineering, Environment, Biotechnology & Energy, Faculty of Engineering, University of Porto, Porto4200-465, Portugal
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Cheng J, Kenaan A, Zhao D, Qi D, Song J. Photo-polymerizable ferrous sulfate liposomes as vehicles for iron fortification of food. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 30:102286. [DOI: 10.1016/j.nano.2020.102286] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/07/2020] [Accepted: 08/02/2020] [Indexed: 12/30/2022]
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Farcas CG, Dehelean C, Pinzaru IA, Mioc M, Socoliuc V, Moaca EA, Avram S, Ghiulai R, Coricovac D, Pavel I, Alla PK, Cretu OM, Soica C, Loghin F. Thermosensitive Betulinic Acid-Loaded Magnetoliposomes: A Promising Antitumor Potential for Highly Aggressive Human Breast Adenocarcinoma Cells Under Hyperthermic Conditions. Int J Nanomedicine 2020; 15:8175-8200. [PMID: 33122905 PMCID: PMC7591238 DOI: 10.2147/ijn.s269630] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 09/12/2020] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Breast cancer presents one of the highest rates of prevalence around the world. Despite this, the current breast cancer therapy is characterized by significant side effects and high risk of recurrence. The present work aimed to develop a new therapeutic strategy that may improve the current breast cancer therapy by developing a heat-sensitive liposomal nano-platform suitable to incorporate both anti-tumor betulinic acid (BA) compound and magnetic iron nanoparticles (MIONPs), in order to address both remote drug release and hyperthermia-inducing features. To address the above-mentioned biomedical purposes, the nanocarrier must possess specific features such as specific phase transition temperature, diameter below 200 nm, superparamagnetic properties and heating capacity. Moreover, the anti-tumor activity of the developed nanocarrier should significantly affect human breast adenocarcinoma cells. METHODS BA-loaded magnetoliposomes and corresponding controls (BA-free liposomes and liposomes containing no magnetic payload) were obtained through the thin-layer hydration method. The quality and stability of the multifunctional platforms were physico-chemically analysed by the means of RAMAN, scanning electron microscopy-EDAX, dynamic light scattering, zeta potential and DSC analysis. Besides this, the magnetic characterization of magnetoliposomes was performed in terms of superparamagnetic behaviour and heating capacity. The biological profile of the platforms and controls was screened through multiple in vitro methods, such as MTT, LDH and scratch assays, together with immunofluorescence staining. In addition, CAM assay was performed in order to assess a possible anti-angiogenic activity induced by the test samples. RESULTS The physico-chemical analysis revealed that BA-loaded magnetoliposomes present suitable characteristics for the purpose of this study, showing biocompatible phase transition temperature, a diameter of 198 nm, superparamagnetic features and heating capacity. In vitro results showed that hyperthermia induces enhanced anti-tumor activity when breast adenocarcinoma MDA-MB-231 cells were exposed to BA-loaded magnetoliposomes, while a low cytotoxic rate was exhibited by the non-tumorigenic breast epithelial MCF 10A cells. Moreover, the in ovo angiogenesis assay endorsed the efficacy of this multifunctional platform as a good strategy for breast cancer therapy, under hyperthermal conditions. Regarding the possible mechanism of action of this multifunctional nano-platform, the immunocytochemistry of the MCF7 and MDA-MB-231 breast carcinoma cells revealed a microtubule assembly modulatory activity, under hyperthermal conditions. CONCLUSION Collectively, these findings indicate that BA-loaded magnetoliposomes, under hyperthermal conditions, might serve as a promising strategy for breast adenocarcinoma treatment.
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Affiliation(s)
- Claudia Geanina Farcas
- Faculty of Pharmacy, Department of Toxicology, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj Napoca, Cluj Napoca, Romania
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Cristina Dehelean
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Iulia Andreea Pinzaru
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Marius Mioc
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Vlad Socoliuc
- Laboratory of Magnetic Fluids, Center for Fundamental and Advanced Technical Research, Romanian Academy – Timisoara Branch, Timisoara, Romania
- Research Center for Complex Fluids Systems Engineering, Politehnica University of Timisoara, Timisoara, Romania
| | - Elena-Alina Moaca
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Stefana Avram
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Roxana Ghiulai
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Dorina Coricovac
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Ioana Pavel
- Department of Chemistry, Wright State University, Dayton, OH, USA
| | | | - Octavian Marius Cretu
- Faculty of Medicine, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Codruta Soica
- Faculty of Pharmacy, “Victor Babeș” University of Medicine and Pharmacy Timisoara, Timisoara, Romania
| | - Felicia Loghin
- Faculty of Pharmacy, Department of Toxicology, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj Napoca, Cluj Napoca, Romania
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108
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Castañeda-Reyes ED, Perea-Flores MDJ, Davila-Ortiz G, Lee Y, Gonzalez de Mejia E. Development, Characterization and Use of Liposomes as Amphipathic Transporters of Bioactive Compounds for Melanoma Treatment and Reduction of Skin Inflammation: A Review. Int J Nanomedicine 2020; 15:7627-7650. [PMID: 33116492 PMCID: PMC7549499 DOI: 10.2147/ijn.s263516] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022] Open
Abstract
The skin is the largest organ in the human body, providing a barrier to the external environment. It is composed of three layers: epidermis, dermis and hypodermis. The most external epidermis is exposed to stress factors that may lead to skin conditions such as photo-aging and skin cancer. Some treatments for skin disease utilize the incorporation of drugs or bioactive compounds into nanocarriers known as liposomes. Liposomes are membranes whose sizes range from nano to micrometers and are composed mostly of phospholipids and cholesterol, forming similar structures to cell membranes. Thus, skin treatments with liposomes have lower toxicity in comparison to traditional treatment routes such as parenteral and oral. Furthermore, addition of edge activators to the liposomes decreases the rigidity of the bilayer structure making it deformable, thereby improving skin permeability. Liposomes are composed of an aqueous core and a lipidic bilayer, which confers their amphiphilic property. Thus, they can carry hydrophobic and hydrophilic compounds, even simultaneously. Current applications of these nanocarriers are mainly in the cosmetic and pharmaceutic industries. Nevertheless, new research has revealed promising results regarding the effectiveness of liposomes for transporting bioactive compounds through the skin. Liposomes have been well studied; however, additional research is needed on the efficacy of liposomes loaded with bioactive peptides for skin delivery. The objective of this review is to provide an up-to-date description of existing techniques for the development of liposomes and their use as transporters of bioactive compounds in skin conditions such as melanoma and skin inflammation. Furthermore, to gain an understanding of the behavior of liposomes during the process of skin delivery of bioactive compounds into skin cells.
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Affiliation(s)
- Erick Damian Castañeda-Reyes
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (IPN), Unidad Profesional Adolfo Lopez Mateos, Ciudad De México, 07738, México.,Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Maria de Jesús Perea-Flores
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional (IPN), Unidad Profesional Adolfo López Mateos, Ciudad De México 07738, México
| | - Gloria Davila-Ortiz
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (IPN), Unidad Profesional Adolfo Lopez Mateos, Ciudad De México, 07738, México
| | - Youngsoo Lee
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Elvira Gonzalez de Mejia
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Champaign, IL, USA
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Leggio L, Arrabito G, Ferrara V, Vivarelli S, Paternò G, Marchetti B, Pignataro B, Iraci N. Mastering the Tools: Natural versus Artificial Vesicles in Nanomedicine. Adv Healthc Mater 2020; 9:e2000731. [PMID: 32864899 DOI: 10.1002/adhm.202000731] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/27/2020] [Indexed: 12/12/2022]
Abstract
Naturally occurring extracellular vesicles and artificially made vesicles represent important tools in nanomedicine for the efficient delivery of biomolecules and drugs. Since its first appearance in the literature 50 years ago, the research on vesicles is progressing at a fast pace, with the main goal of developing carriers able to protect cargoes from degradation, as well as to deliver them in a time- and space-controlled fashion. While natural occurring vesicles have the advantage of being fully compatible with their host, artificial vesicles can be easily synthetized and functionalized according to the target to reach. Research is striving to merge the advantages of natural and artificial vesicles, in order to provide a new generation of highly performing vesicles, which would improve the therapeutic index of transported molecules. This progress report summarizes current manufacturing techniques used to produce both natural and artificial vesicles, exploring the promises and pitfalls of the different production processes. Finally, pros and cons of natural versus artificial vesicles are discussed and compared, with special regard toward the current applications of both kinds of vesicles in the healthcare field.
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Affiliation(s)
- Loredana Leggio
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
| | - Giuseppe Arrabito
- Department of Physics and Chemistry – Emilio Segrè University of Palermo Building 17, Viale delle Scienze Palermo 90128 Italy
| | - Vittorio Ferrara
- Department of Chemical Sciences University of Catania Viale Andrea Doria 6 Catania 95125 Italy
| | - Silvia Vivarelli
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
| | - Greta Paternò
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
| | - Bianca Marchetti
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
- Neuropharmacology Section OASI Institute for Research and Care on Mental Retardation and Brain Aging Troina 94018 Italy
| | - Bruno Pignataro
- Department of Physics and Chemistry – Emilio Segrè University of Palermo Building 17, Viale delle Scienze Palermo 90128 Italy
| | - Nunzio Iraci
- Department of Biomedical and Biotechnological Sciences University of Catania Torre Biologica, Via S. Sofia 97 Catania 95125 Italy
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Liu G, Hou S, Tong P, Li J. Liposomes: Preparation, Characteristics, and Application Strategies in Analytical Chemistry. Crit Rev Anal Chem 2020; 52:392-412. [DOI: 10.1080/10408347.2020.1805293] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Guangyan Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Shili Hou
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Peihong Tong
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
| | - Jianping Li
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, China
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Céspedes PF, Beckers D, Dustin ML, Sezgin E. Model membrane systems to reconstitute immune cell signaling. FEBS J 2020; 288:1070-1090. [DOI: 10.1111/febs.15488] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/26/2020] [Accepted: 07/14/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Pablo F. Céspedes
- Kennedy Institute of Rheumatology Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences University of Oxford UK
| | - Daniel Beckers
- MRC Human Immunology Unit MRC Weatherall Institute of Molecular Medicine University of Oxford UK
| | - Michael L. Dustin
- Kennedy Institute of Rheumatology Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences University of Oxford UK
| | - Erdinc Sezgin
- MRC Human Immunology Unit MRC Weatherall Institute of Molecular Medicine University of Oxford UK
- Science for Life Laboratory Department of Women's and Children's Health Karolinska Institutet Stockholm Sweden
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112
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Zeinali M, Abbaspour-Ravasjani S, Ghorbani M, Babazadeh A, Soltanfam T, Santos AC, Hamishehkar H, Hamblin MR. Nanovehicles for co-delivery of anticancer agents. Drug Discov Today 2020; 25:1416-1430. [DOI: 10.1016/j.drudis.2020.06.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/26/2020] [Accepted: 06/26/2020] [Indexed: 12/17/2022]
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113
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Arora B, Yoon A, Sriram M, Singha P, Rizvi SS. Reactive extrusion: A review of the physicochemical changes in food systems. INNOV FOOD SCI EMERG 2020. [DOI: 10.1016/j.ifset.2020.102429] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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114
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Romana B, Hassan MM, Sonvico F, Garrastazu Pereira G, Mason AF, Thordarson P, Bremmell KE, Barnes TJ, Prestidge CA. A liposome-micelle-hybrid (LMH) oral delivery system for poorly water-soluble drugs: Enhancing solubilisation and intestinal transport. Eur J Pharm Biopharm 2020; 154:338-347. [PMID: 32739535 DOI: 10.1016/j.ejpb.2020.07.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/14/2020] [Accepted: 07/21/2020] [Indexed: 12/31/2022]
Abstract
A novel liposome-micelle-hybrid (LMH) carrier system was developed as a superior oral drug delivery platform compared to conventional liposome or micelle formulations. The optimal LMH system was engineered by encapsulating TPGS micelles in the aqueous core of liposomes and its efficacy for oral delivery was demonstrated using lovastatin (LOV) as a model poorly soluble drug with P-gp (permeability glycoprotein) limited intestinal absorption. LOV-LMH was characterised as unilamellar, spherical vesicles encapsulating micellar structures within the interior aqueous core and showing an average diameter below 200 nm. LMH demonstrated enhanced drug loading, water apparent solubility and extended/controlled release of LOV compared to conventional liposomes and micelles. LMH exhibited enhanced LOV absorption and transportation in a Caco-2 cell monolayer model of the intestine by inhibiting the P-gp transporter system compared to free LOV. The LMH system is a promising novel oral delivery approach for enhancing bioavailability of poorly water-soluble drugs, especially those presenting P-gp effluxes limited absorption.
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Affiliation(s)
- Bilquis Romana
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia; University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia
| | - Md Musfizur Hassan
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Fabio Sonvico
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Gabriela Garrastazu Pereira
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Alex F Mason
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Pall Thordarson
- School of Chemistry, The Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Kristen E Bremmell
- University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia
| | - Timothy J Barnes
- University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia
| | - Clive A Prestidge
- University of South Australia, Clinical and Health Sciences, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia.
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115
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Chen L, Ma WL, Cheng WC, Yang JC, Wang HC, Su YT, Ahmad A, Hung YC, Chang WC. Targeting lipid droplet lysophosphatidylcholine for cisplatin chemotherapy. J Cell Mol Med 2020; 24:7187-7200. [PMID: 32543783 PMCID: PMC7339169 DOI: 10.1111/jcmm.15218] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 02/21/2020] [Accepted: 03/12/2020] [Indexed: 12/12/2022] Open
Abstract
This study aims to explore lipidic mechanism towards low‐density lipoprotein receptor (LDLR)‐mediated platinum chemotherapy resistance. By using the lipid profiling technology, LDLR knockdown was found to increase lysosomal lipids and decrease membranous lipid levels in EOC cells. LDLR knockdown also down‐regulated ether‐linked phosphatidylethanolamine (PE‐O, lysosomes or peroxisomes) and up‐regulated lysophosphatidylcholine [LPC, lipid droplet (LD)]. This implies that the manner of using Lands cycle (conversion of lysophospholipids) for LDs might affect cisplatin sensitivity. The bioinformatics analyses illustrated that LDLR‐related lipid entry into LD, rather than an endogenous lipid resource (eg Kennedy pathway), controls the EOC prognosis of platinum chemotherapy patients. Moreover, LDLR knockdown increased the number of platinum‐DNA adducts and reduced the LD platinum amount. By using a manufactured LPC‐liposome‐cisplatin (LLC) drug, the number of platinum‐DNA adducts increased significantly in LLC‐treated insensitive cells. Moreover, the cisplatin content in LDs increased upon LLC treatment. Furthermore, lipid profiles of 22 carcinoma cells with differential cisplatin sensitivity (9 sensitive vs 13 insensitive) were acquired. These profiles revealed low storage lipid levels in insensitive cells. This result recommends that LD lipidome might be a common pathway in multiple cancers for platinum sensitivity in EOC. Finally, LLC suppressed both cisplatin‐insensitive human carcinoma cell training and testing sets. Thus, LDLR‐platinum insensitivity can be due to a defective Lands cycle that hinders LPC production in LDs. Using lipidome assessment with the newly formulated LLC can be a promising cancer chemotherapy method.
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Affiliation(s)
- Lumin Chen
- Department of OBS & GYN, BenQ Medical Center, Suzhou, China.,Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Lung Ma
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, Graduate Institution of Cancer Biology, Graduate Institute of Public Health, China Medical University, Taichung, Taiwan.,Department of Nursing, Asia University, Taichung, Taiwan
| | - Wei-Chung Cheng
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, Graduate Institution of Cancer Biology, Graduate Institute of Public Health, China Medical University, Taichung, Taiwan
| | - Juan-Cheng Yang
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, Graduate Institution of Cancer Biology, Graduate Institute of Public Health, China Medical University, Taichung, Taiwan
| | - Hsiao-Ching Wang
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Yu-Ting Su
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, Graduate Institution of Cancer Biology, Graduate Institute of Public Health, China Medical University, Taichung, Taiwan
| | - Azaj Ahmad
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, Graduate Institution of Cancer Biology, Graduate Institute of Public Health, China Medical University, Taichung, Taiwan
| | - Yao-Ching Hung
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, Graduate Institution of Cancer Biology, Graduate Institute of Public Health, China Medical University, Taichung, Taiwan
| | - Wei-Chun Chang
- Department of OBS & GYN, Sex Hormone Research Center, Research Center for Tumor Medicine, Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, Graduate Institution of Cancer Biology, Graduate Institute of Public Health, China Medical University, Taichung, Taiwan
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116
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Buss N, Yasa O, Alapan Y, Akolpoglu MB, Sitti M. Nanoerythrosome-functionalized biohybrid microswimmers. APL Bioeng 2020; 4:026103. [PMID: 32548539 PMCID: PMC7141839 DOI: 10.1063/1.5130670] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 03/11/2020] [Indexed: 12/19/2022] Open
Abstract
Biohybrid microswimmers, which are realized through the integration of motile microscopic organisms with artificial cargo carriers, have a significant potential to revolutionize autonomous targeted cargo delivery applications in medicine. Nonetheless, there are many open challenges, such as motility performance and immunogenicity of the biological segment of the microswimmers, which should be overcome before their successful transition to the clinic. Here, we present the design and characterization of a biohybrid microswimmer, which is composed of a genetically engineered peritrichously flagellated Escherichia coli species integrated with red blood cell-derived nanoliposomes, also known as nanoerythrosomes. Initially, we demonstrated nanoerythrosome fabrication using the cell extrusion technique and characterization of their size and functional cell membrane proteins with dynamic light scattering and flow cytometry analyses, respectively. Then, we showed the construction of biohybrid microswimmers through the conjugation of streptavidin-modified bacteria with biotin-modified nanoerythrosomes by using non-covalent streptavidin interaction. Finally, we investigated the motility performance of the nanoerythrosome-functionalized biohybrid microswimmers and compared it with the free-swimming bacteria. The microswimmer design approach presented here could lead to the fabrication of personalized biohybrid microswimmers from patients' own cells with high fabrication efficiencies and motility performances.
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Affiliation(s)
| | - Oncay Yasa
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Yunus Alapan
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Mukrime Birgul Akolpoglu
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
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117
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Mota-Cobián A, Velasco C, Mateo J, España S. Optimization of purification techniques for lumen-loaded magnetoliposomes. NANOTECHNOLOGY 2020; 31:145102. [PMID: 31810069 DOI: 10.1088/1361-6528/ab5f80] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Liposomes encapsulating magnetic nanoparticles (MNPs), known as magnetoliposomes (MLs), have become a hot topic in biomedical research for applications in remote-triggered drug delivery and diagnostic imaging. One of the most crucial steps in the preparation of MLs is the purification of non-encapsulated MNPs, as a non-efficient purification can lead to misleading results. Purification is challenging especially when MNPs are loaded in the liposome lumen due to the small size differences between the MLs and the non-encapsulated MNPs. This work presents a comparison of three well known purification techniques, namely size exclusion chromatography, centrifugation and salt-induced aggregation, using five commercial MNPs with different configurations. The optimal purification techniques for two MNPs were studied further in the synthesis of MLs. In conclusion, we show that an efficient MLs purification requires the performance of a detailed study to select a valid method that is strongly dependent upon MNPs choices.
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Affiliation(s)
- Adriana Mota-Cobián
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain. Universidad Complutense de Madrid; IdISSC, Madrid, Spain
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118
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Sabapathy T, Deplazes E, Mancera RL. Revisiting the Interaction of Melittin with Phospholipid Bilayers: The Effects of Concentration and Ionic Strength. Int J Mol Sci 2020; 21:E746. [PMID: 31979376 PMCID: PMC7037773 DOI: 10.3390/ijms21030746] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 01/17/2020] [Accepted: 01/21/2020] [Indexed: 12/21/2022] Open
Abstract
Melittin is an anti-microbial peptide (AMP) and one of the most studied membrane-disrupting peptides. There is, however, a lack of accurate measurements of the concentration-dependent kinetics and affinity of binding of melittin to phospholipid membranes. In this study, we used surface plasmon resonance spectroscopy to determine the concentration-dependent effect on the binding of melittin to 1-palmitoyl-2-oleoyl-glycero-3-phosphocholine (POPC) bilayers in vesicles. Three concentration ranges were considered, and when combined, covered two orders of magnitudes (0.04 µM to 8 µM), corresponding to concentrations relevant to the membrane-disrupting and anti-microbial activities of melittin. Binding kinetics data were analysed using a 1:1 Langmuir-binding model and a two-state reaction model. Using in-depth quantitative analysis, we characterised the effect of peptide concentration, the addition of NaCl at physiological ionic strength and the choice of kinetic binding model on the reliability of the calculated kinetics and affinity of binding parameters. The apparent binding affinity of melittin for POPC bilayers was observed to decrease with increasing peptide/lipid (P/L) ratio, primarily due to the marked decrease in the association rate. At all concentration ranges, the two-state reaction model provided a better fit to the data and, thus, a more reliable estimate of binding affinity. Addition of NaCl significantly reduced the signal response during the association phase; however, no substantial effect on the binding affinity of melittin to the POPC bilayers was observed. These findings based on POPC bilayers could have important implications for our understanding of the mechanism of action of melittin on more complex model cell membranes of higher physiological relevance.
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Affiliation(s)
- Thiru Sabapathy
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, GPO Box U1987, Perth, WA 6845, Australia; (T.S.); (E.D.)
| | - Evelyne Deplazes
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, GPO Box U1987, Perth, WA 6845, Australia; (T.S.); (E.D.)
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia
| | - Ricardo L. Mancera
- School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, GPO Box U1987, Perth, WA 6845, Australia; (T.S.); (E.D.)
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119
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Utilizing Liposomal Quercetin and Gallic Acid in Localized Treatment of Vaginal Candida Infections. Pharmaceutics 2019; 12:pharmaceutics12010009. [PMID: 31861805 PMCID: PMC7023398 DOI: 10.3390/pharmaceutics12010009] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 12/13/2019] [Accepted: 12/17/2019] [Indexed: 12/22/2022] Open
Abstract
Vulvovaginal candidiasis (VVC) is a widely spread fungal infection that causes itching, pain and inflammation at the vaginal site. Although common, currently available treatment suffers from limited efficacy and high recurrence. In addition, the growing problem of resistance to azole drugs used in current treatments emphasizes the need for superior treatment options. Antimicrobial polyphenols are an attractive approach offering multitargeting therapy. We aimed to develop novel liposomes for simultaneous delivery of two polyphenols (quercetin, Q, and gallic acid, GA) that, when released within the vaginal cavity, act in synergy to eradicate infection while alleviating the symptoms of VVC. Q was selected for its anti-itching and anti-inflammatory properties, while GA for its reported activity against Candida. Novel liposomes containing only Q (LP-Q), only GA (LP-GA) or both polyphenols (LP-Q+GA) were in the size range around 200 nm. Q was efficiently entrapped in both LP-Q and in LP-Q+GA (85%) while the entrapment of GA was higher in LP-Q+GA (30%) than in LP-GA (25%). Liposomes, especially LP-Q+GA, promoted sustained release of both polyphenols. Q and GA acted in synergy, increasing the antioxidant activities of a single polyphenol. Polyphenol-liposomes were not cytotoxic and displayed stronger anti-inflammatory effects than free polyphenols. Finally, LP-GA and LP-Q+GA considerably reduced C. albicans growth.
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120
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Rapid formation of Small Unilamellar Vesicles (SUV) through low-frequency sonication: An innovative approach. Colloids Surf B Biointerfaces 2019; 181:837-844. [DOI: 10.1016/j.colsurfb.2019.06.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/13/2019] [Accepted: 06/13/2019] [Indexed: 02/05/2023]
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121
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Naitlho N, Prieto-Dapena F, Rabasco AM, Rueda M, González-Rodríguez ML. Didodecyldimethylammonium Bromide Role in Anchoring Gold Nanoparticles onto Liposome Surface for Triggering the Drug Release. AAPS PharmSciTech 2019; 20:294. [PMID: 31432298 DOI: 10.1208/s12249-019-1492-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/24/2019] [Indexed: 12/13/2022] Open
Abstract
Liposomes with their capacity to anchor gold nanoparticles (AuNPs) onto their surface are used in the treatment of several pathologies such as cancer. The objective of this work was the optimization of the vesicle composition by using cationic agents in order to reinforce the anchoring process of AuNPs, and for the study of the influence of local temperature and vesicle size on drug release. A Plackett-Burman design was conducted to determine the optimal composition for the anchoring of AuNPs. A comprehensive study of the influence of lipid bilayer composition on the surface charge, size, and polydispersity index (PdI) of liposomes was carried out. Afterwards, in vitro release studies by dialysis were performed and several release parameters were evaluated as a function of temperature. Cholesterol was fixed as the rigid agent and Didodecyldimethylammonium bromide (DDAB) was selected as the cationic lipid into the liposome bilayer. Photomicrographs revealed that DDAB facilitated the anchoring of AuNPs onto the liposomal surface. The anchoring of AuNPs also enhanced the amount and rate of calcein released, especially in extruded samples, at several incubating temperatures. In addition, it was observed that both the anchoring of AuNPs and the calcein release were improved by increasing the surface of the vesicles. The contributions of liposome composition (DDAB inclusion, incubation temperature, anchoring of AuNPs) and size and surface availability of the vesicles on calcein release could be used to design improved lipid nanostructures for the controlled release of anticancer drugs.
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122
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Shah VM, Nguyen DX, Patel P, Cote B, Al-Fatease A, Pham Y, Huynh MG, Woo Y, Alani AWG. Liposomes produced by microfluidics and extrusion: A comparison for scale-up purposes. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 18:146-156. [DOI: 10.1016/j.nano.2019.02.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/30/2019] [Accepted: 02/19/2019] [Indexed: 10/27/2022]
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123
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Nele V, Holme MN, Kauscher U, Thomas MR, Doutch JJ, Stevens MM. Effect of Formulation Method, Lipid Composition, and PEGylation on Vesicle Lamellarity: A Small-Angle Neutron Scattering Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6064-6074. [PMID: 30977658 PMCID: PMC6506804 DOI: 10.1021/acs.langmuir.8b04256] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Liposomes are well-established systems for drug delivery and biosensing applications. The design of a liposomal carrier requires careful choice of lipid composition and formulation method. These determine many vesicle properties including lamellarity, which can have a strong effect on both encapsulation efficiency and the efflux rate of encapsulated active compounds. Despite this, a comprehensive study on how the lipid composition and formulation method affect vesicle lamellarity is still lacking. Here, we combine small-angle neutron scattering and cryogenic transmission electron microscopy to study the effect of three different well-established formulation methods followed by extrusion through 100 nm polycarbonate membranes on the resulting vesicle membrane structure. Specifically, we examine vesicles formulated from the commonly used phospholipids 1-palmitoyl-2-oleoyl- sn-glycero-3-phosphocholine (POPC), 1,2-dipalmitoyl- sn-glycero-3-phosphocholine (DPPC) and 1,2-dioleoyl- sn-glycero-3-phosphocholine (DOPC) via film hydration followed by (i) agitation on a shaker or (ii) freeze-thawing, or (iii) the reverse-phase evaporation vesicle method. After extrusion, up to half of the total lipid content is still assembled into multilamellar structures. However, we achieved unilamellar vesicle populations when as little as 0.1 mol % PEG-modified lipid was included in the vesicle formulation. Interestingly, DPPC with 5 mol % PEGylated lipid produces a combination of cylindrical micelles and vesicles. In conclusion, our results provide important insights into the effect of the formulation method and lipid composition on producing liposomes with a defined membrane structure.
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Affiliation(s)
- Valeria Nele
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Margaret N. Holme
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- E-mail: (M.N.H.)
| | - Ulrike Kauscher
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - Michael R. Thomas
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
| | - James J. Doutch
- ISIS
Neutron and Muon Source, STFC, Rutherford
Appleton Laboratory, Didcot OX11 ODE, U.K.
| | - Molly M. Stevens
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, London SW7 2AZ, U.K.
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
- E-mail: (M.M.S.)
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124
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Localized Therapy of Vaginal Infections and Inflammation: Liposomes-In-Hydrogel Delivery System for Polyphenols. Pharmaceutics 2019; 11:pharmaceutics11020053. [PMID: 30691199 PMCID: PMC6410284 DOI: 10.3390/pharmaceutics11020053] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/23/2019] [Accepted: 01/24/2019] [Indexed: 01/17/2023] Open
Abstract
Natural polyphenols, such as resveratrol (RES) or epicatechin (EPI), are attractive for treatments of various diseases, including vaginal infections and inflammation, because of their strong anti-oxidative and anti-inflammatory properties. However, their low solubility and consequent poor bioavailability limit their therapeutic uses. To overcome these limitations, a vaginal delivery system comprising either RES or EPI liposomes-in-hydrogel was developed. This system permits therapeutic action of both liposomal polyphenol (RES or EPI) and chitosan-based hydrogel. Liposomes of around 200 nm and entrapment efficiency of 81% and 77% for RES and EPI, respectively, were incorporated into chitosan hydrogel, respectively. Medium molecular weight chitosan (2.5%, w/w) was found to have optimal texture properties and mucoadhesiveness in ex vivo conditions. The in vitro release studies confirmed the sustained release of polyphenols from the system. Both liposomal polyphenols and polyphenols-in-liposomes-in-hydrogel exhibited only minor effects on cell toxicity. EPI showed superior radical scavenging activity at lower concentrations compared to antioxidants vitamin C and E. Anti-inflammatory activity expressed as the inhibitory activity of formulations on the NO production in the LPS-induced macrophages (RAW 264.7) confirmed the superiority of EPI liposomes-in-hydrogel. The plain liposomes-in-hydrogel also exhibited potent anti-inflammatory activity, suggesting that chitosan hydrogel acts in synergy regarding anti-inflammatory effect of formulation.
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125
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Shah VM, Nguyen DX, Al Fatease A, Patel P, Cote B, Woo Y, Gheewala R, Pham Y, Huynh MG, Gannett C, Rao DA, Alani AWG. Liposomal formulation of hypoxia activated prodrug for the treatment of ovarian cancer. J Control Release 2018; 291:169-183. [PMID: 30339904 DOI: 10.1016/j.jconrel.2018.10.021] [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: 05/14/2018] [Revised: 10/08/2018] [Accepted: 10/16/2018] [Indexed: 02/06/2023]
Abstract
In this work, a new sphingomyelin-cholesterol liposomal formulation (CPD100Li) for the delivery of a hypoxia activated prodrug of vinblastine, mon-N-oxide (CPD100), is developed. The optimized liposomal formulation uses an ionophore (A23187) mediated pH-gradient method. Optimized CPD100Li is characterized for size, drug loading, and stability. The in vitro toxicity of CPD100Li is assessed on different aspects of cell proliferation and apoptosis of ES2 ovarian cancer under normoxic and hypoxic conditions. The pharmacokinetics of CPD100Li in mice as well as the influence of A23187 on the retention of CPD100 are assessed. The dose limiting toxicity (DLT) and maximum tolerated dose (MTD) for CPD100Li are evaluated in nude mice. CPD100 is loaded in the liposome at 5.5 mg/mL. The sizes of CPD100Li using DLS, qNano and cryo-TEM techniques are 155.4 ± 4.2 nm, 132 nm, and 112.6 ± 19.8 nm, respectively. There is no difference between the in vitro characterization of CPD100Li with and without ionophore. Freshly prepared CPD100Li with ionophore are stable for 48 h at 4 °C, while the freeze-dried formulation is stable for 3 months under argon at 4 °C. The hypoxic cytotoxicity ratios (HCR) of CPD100 and CPD100Li are 0.16 and 0.11, respectively. CPD100Li under hypoxic conditions has a 9.2-fold lower IC50 value as compared to CPD100Li under normoxic conditions, confirming the hypoxia dependent activation of CPD100. CPD100Li treated ES2 cells show a time dependent enhanced cell death, along with caspase production and an increase in the number of cells in G0/G1 and higher cell arrest. The blood concentration profile of CPD100Li in mice without A23187 has a 12.6-fold lower area under the curve (AUC) and 1.6-fold lower circulation time compared to the CPD100Li with A23187. The DLT for both CPD100 and CPD100Li is 45 mg/kg and the MTD is 40 mg/kg in nude mice. Based on the preliminary data obtained, we clearly show that the presence of ionophore affects the in vivo stability of CPD100. CPD100Li presents a unique opportunity to develop a first-in-kind chemotherapy product based on achieving selective drug activation through the hypoxic physiologic microenvironment of solid tumors.
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Affiliation(s)
- Vidhi M Shah
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University/OHSU, Portland, OR, USA
| | - Duc X Nguyen
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University/OHSU, Portland, OR, USA
| | - Adel Al Fatease
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University/OHSU, Portland, OR, USA
| | | | - Brianna Cote
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University/OHSU, Portland, OR, USA
| | - Yeonhee Woo
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University/OHSU, Portland, OR, USA
| | | | - Yvonne Pham
- Portland State University, Portland, OR, USA
| | | | - Christen Gannett
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University/OHSU, Portland, OR, USA
| | - Deepa A Rao
- School of Pharmacy, Pacific University, Hillsboro, OR, USA
| | - Adam W G Alani
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University/OHSU, Portland, OR, USA.
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126
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Ahmed KS, Hussein SA, Ali AH, Korma SA, Lipeng Q, Jinghua C. Liposome: composition, characterisation, preparation, and recent innovation in clinical applications. J Drug Target 2018; 27:742-761. [PMID: 30239255 DOI: 10.1080/1061186x.2018.1527337] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In the last decades, pharmaceutical interested researches aimed to develop novel and innovative drug delivery techniques in the medical and pharmaceutical fields. Recently, phospholipid vesicles (Liposomes) are the most known versatile assemblies in the drug delivery systems. The discovery of liposomes arises from self-forming enclosed phospholipid bilayer upon coming in contact with the aqueous solution. Liposomes are uni or multilamellar vesicles consisting of phospholipids produced naturally or synthetically, which are readily non-toxic, biodegradable, and are readily produced on a large scale. Various phospholipids, for instance, soybean, egg yolk, synthetic, and hydrogenated phosphatidylcholine consider the most popular types used in different kinds of formulations. This review summarises liposomes composition, characterisation, methods of preparation, and their applications in different medical fields including cancer therapy, vaccine, ocular delivery, wound healing, and some dermatological applications.
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Affiliation(s)
- Kamel S Ahmed
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Jiangnan University , Wuxi , PR China.,b Department of Pharmaceutics , Faculty of Pharmacy, Minia University , Minia , Egypt
| | - Saied A Hussein
- c Department of Biomedical Engineering , College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan , PR China
| | - Abdelmoneim H Ali
- d State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University , Wuxi , PR China
| | - Sameh A Korma
- d State Key Laboratory of Food Science and Technology, Synergetic Innovation Center of Food Safety and Nutrition, School of Food Science and Technology, Jiangnan University , Wuxi , PR China
| | - Qiu Lipeng
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Jiangnan University , Wuxi , PR China
| | - Chen Jinghua
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Jiangnan University , Wuxi , PR China
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127
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Sarfraz M, Afzal A, Yang T, Gai Y, Raza SM, Khan MW, Cheng Y, Ma X, Xiang G. Development of Dual Drug Loaded Nanosized Liposomal Formulation by A Reengineered Ethanolic Injection Method and Its Pre-Clinical Pharmacokinetic Studies. Pharmaceutics 2018; 10:pharmaceutics10030151. [PMID: 30200557 PMCID: PMC6161256 DOI: 10.3390/pharmaceutics10030151] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 12/15/2022] Open
Abstract
Oleanolic acid (OA), which is a natural pentacyclic terpenoid, has been identified for hepato-protective, nephron-protective and cardio-tonic properties. In contrast, doxorubicin (DOX) is a famous anti-cancer drug but its efficacy is a question mark because of its known cardio-toxicity. We developed a combined nanoliposomal formulation of DOX with OA, as adjuvant, to overwhelm toxic effects of DOX without compromising anticancer activity. The entrapment efficiency and the particle size were brought in limit by the reengineered ethanolic injection method (REIM), without further extrusion. The developed formulations were stable over the study period of two months. A modified HPLC method was employed for the analysis of OA (drug retention time, Tr = 12 ± 1 min). The recovery of OA against spiked plasma samples was more than 90%. MTT assay showed anti-apoptotic synergism against HepG2 cells at non-fixed ratio (combination index, CI < 1). A sustained in vivo drug release of experimental drugs was depicted over 24 h. Histopathological examination and laboratory findings indicated no visible sign of toxicity in the treated mice group against combined delivery. Hence, this combined nanoliposomal formulation was tagged as a safer therapy for the DOX based cancer treatments.
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Affiliation(s)
- Muhammad Sarfraz
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
- International Joint Laboratory of Nuclear Protein, Henan University, Kaifeng 475001/475004, Henan, China.
- Faculty of Pharmacy, The University of Lahore (UOL), Lahore 56400, Punjab, Pakistan.
| | - Attia Afzal
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
- International Joint Laboratory of Nuclear Protein, Henan University, Kaifeng 475001/475004, Henan, China.
- Faculty of Pharmacy, The University of Lahore (UOL), Lahore 56400, Punjab, Pakistan.
- Institute of Pharmacy, Lahore College for Women University (LCWU), Lahore 54610, Punjab, Pakistan.
| | - Tan Yang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Yongkang Gai
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Shahid Masood Raza
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Muhammad Waseem Khan
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Yao Cheng
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Xiang Ma
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
| | - Guangya Xiang
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology (HUST), Wuhan 430030, Hubei, China.
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128
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Kaddah S, Khreich N, Kaddah F, Khrouz L, Charcosset C, Greige-Gerges H. Corticoids modulate liposome membrane fluidity and permeability depending on membrane composition and experimental protocol design. Biochimie 2018; 153:33-45. [PMID: 29935242 DOI: 10.1016/j.biochi.2018.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/15/2018] [Indexed: 01/22/2023]
Abstract
Given that literature data may give inconsistent results on the effect of a drug on lipid membrane properties, this work aims to investigate the impact of the liposome composition and experimental protocol design on glucocorticoids (GRs: cortisol, cortisone, fludrocortisone acetate, methylprednisolone, prednisolone and prednisone)-modulating membrane fluidity and permeability. GRs-loaded liposomes consisting of dipalmitoylphosphatidylcholine (DPPC) and cholesterol (CHOL) were prepared by reverse phase evaporation technique (REV) at DPPC:CHOL:GR molar ratios of 100:100:2.5, and 100:100:10. The formulations were characterized for their size and homogeneity, encapsulation efficiency and loading rates of GRs, incorporation rates and loading rates of DPPC and CHOL. Changes in DPPC membrane fluidity (CHOL% 0, 10, 20, 30 and 100) after exposure to methylprednisolone were monitored by using 5- and 16-doxyl stearic acids (DSA) as spin probes. For permeability studies, the above-mentioned GRs-loaded liposomes and the preformed liposomes exposed to GRs (2.5 mol%) were compared for the leakage of an encapsulated fluorescent dye, sulforhodamine B (SRB), at 37 °C in buffer (pH 7.5) containing NaCl. The SRB release kinetics were analyzed by the Higuchi model for two release phases (from 0 to 10 h, and from 10 to 48 h). All formulations exhibited a monodispersed size distribution of liposomes with a mean particle value close to 0.4 μm, also the DPPC and CHOL were highly incorporated (>95%). High loading rate values of DPPC and CHOL were also obtained. Except for fludrocortisone acetate (51%) and prednisolone (77%), high loading rate values of GRs were obtained (>81%). Fluidity and permeability studies showed that the GR concentration, CHOL content, experimental protocol design including the period of incubation represent critical parameters to be considered in analyzing the effect of drugs on the membrane properties.
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Affiliation(s)
- Samar Kaddah
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon; Laboratoire d'Automatique et de Génie des Procédés (LAGEP), Université Claude Bernard, Lyon 1, France
| | - Nathalie Khreich
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon
| | - Fouad Kaddah
- École Supérieure d'ingénieurs de Beyrouth, Université Saint Joseph, Beyrouth, Mar Roukoz-Dekwaneh, Lebanon
| | - Lhoussain Khrouz
- Laboratoire de Chimie, École Normale Supérieure de Lyon (ENS), Université Claude Bernard, Lyon 1, France
| | - Catherine Charcosset
- Laboratoire d'Automatique et de Génie des Procédés (LAGEP), Université Claude Bernard, Lyon 1, France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon.
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129
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Guo P, Huang J, Zhao Y, Martin CR, Zare RN, Moses MA. Nanomaterial Preparation by Extrusion through Nanoporous Membranes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703493. [PMID: 29468837 DOI: 10.1002/smll.201703493] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/09/2018] [Indexed: 05/20/2023]
Abstract
Template synthesis represents an important class of nanofabrication methods. Herein, recent advances in nanomaterial preparation by extrusion through nanoporous membranes that preserve the template membrane without sacrificing it, which is termed as "non-sacrificing template synthesis," are reviewed. First, the types of nanoporous membranes used in nanoporous membrane extrusion applications are introduced. Next, four common nanoporous membrane extrusion strategies: vesicle extrusion, membrane emulsification, precipitation extrusion, and biological membrane extrusion, are examined. These methods have been utilized to prepare a wide range of nanomaterials, including liposomes, emulsions, nanoparticles, nanofibers, and nanotubes. The principle and historical context of each specific technology are discussed, presenting prominent examples and evaluating their positive and negative features. Finally, the current challenges and future opportunities of nanoporous membrane extrusion methods are discussed.
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Affiliation(s)
- Peng Guo
- Vascular Biology Program, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School and Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Jing Huang
- Vascular Biology Program, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School and Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Yaping Zhao
- School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, 800 Dongchuan road, Shanghai, 200240, China
| | - Charles R Martin
- Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL, 32611, USA
| | - Richard N Zare
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA, 94305, USA
| | - Marsha A Moses
- Vascular Biology Program, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Department of Surgery, Harvard Medical School and Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
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130
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Nam JH, Kim SY, Seong H. Investigation on Physicochemical Characteristics of a Nanoliposome-Based System for Dual Drug Delivery. NANOSCALE RESEARCH LETTERS 2018; 13:101. [PMID: 29654484 PMCID: PMC5899077 DOI: 10.1186/s11671-018-2519-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 04/05/2018] [Indexed: 05/13/2023]
Abstract
Synergistic effects of multiple drugs with different modes of action are utilized for combinatorial chemotherapy of intractable cancers. Translation of in vitro synergistic effects into the clinic can be realized using an efficient delivery system of the drugs. Despite a few studies on nano-sized liposomes containing erlotinib (ERL) and doxorubicin (DOX) in a single liposome vesicle, reliable and reproducible preparation methods as well as physicochemical characteristics of a non-PEGylated nanoliposome co-encapsulated with ERL and DOX have not been yet elucidated. In this study, ERL-encapsulated nanoliposomes were prepared using the lipid film-hydration method. By ultrasonication using a probe sonicator, the liposome diameter was reduced to less than 200 nm. DOX was loaded into the ERL-encapsulated nanoliposomes using ammonium sulfate (AS)-gradient or pH-gradient method. Effects of DOX-loading conditions on encapsulation efficiency (EE) of the DOX were investigated to determine an efficient drug-loading method. In the EE of DOX, AS-gradient method was more effective than pH gradient. The dual drug-encapsulated nanoliposomes had more than 90% EE of DOX and 30% EE of ERL, respectively. Transmission electron microscopy and selected area electron diffraction analyses of the dual drug-encapsulated nanoliposomes verified the highly oriented DOX-sulfate crystals inside the liposome as well as the less oriented small crystals of ERL in the outermost region of the nanoliposome. The nanoliposomes were stable at different temperatures without an increase of the nanoliposome diameter. The dual drug-encapsulated nanoliposomes showed a time-differential release of ERL and DOX, implying proper sequential releases for their synergism. The preparation methods and the physicochemical characteristics of the dual drug delivery system contribute to the development of the optimal process and more advanced systems for translational researches.
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Affiliation(s)
- Jae Hyun Nam
- Therapeutics and Biotechnology Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-Gu, Deajeon, 34114 Republic of Korea
| | - So-Yeon Kim
- Therapeutics and Biotechnology Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-Gu, Deajeon, 34114 Republic of Korea
| | - Hasoo Seong
- Therapeutics and Biotechnology Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-Gu, Deajeon, 34114 Republic of Korea
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131
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Effect of Surfactant Type, Cholesterol Content and Various Downsizing Methods on the Particle Size of Niosomes. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2018; 17:1-11. [PMID: 31011337 PMCID: PMC6447874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The present study was conducted to investigate the performance of different size reduction techniques including probe sonication, extrusion, and high pressure homogenization for nanosizing of niosomes. Also, the effects of cholesterol content and surfactant type on the size and poly dispersity index (PDI) of the formulations were evaluated. Various niosomal formulations composed of Brij 72, Span 60, or Tween 60 were prepared and then, to reduce vesicle size and minimize the PDI, the niosomes were treated by various post-processing procedures. Surfactant type showed a significant effect on the particle size of the niosomes. The particle size of Tween 60 niosomes was significantly larger than those of Span 60 and Brij 72 niosomes (P < 0.05), indicating that at the same cholesterol content, niosomes composed of a surfactant with a higher HLB value show larger particle size than those with a lower HLB value. The influences of cholesterol content as well as downsizing methods, on the particle size and distribution of niosomes were significantly dependent on the surfactant composition of the niosomes. Extrusion and probe sonication were found to be the most efficient methods for size reduction of the Tween 60 and Span 60 niosomes, while for downsizing of Brij 72 niosomes, all employed methods were efficient and resulted in the approximately similar size of about 200 nm. In conclusion, the selection of an efficient method for nanosizing of niosomes and also achievement of a desired size range, and homogeneity highly depends on the niosome composition, particularly on the employed surfactant type.
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132
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Buscema M, Matviykiv S, Mészáros T, Gerganova G, Weinberger A, Mettal U, Mueller D, Neuhaus F, Stalder E, Ishikawa T, Urbanics R, Saxer T, Pfohl T, Szebeni J, Zumbuehl A, Müller B. Immunological response to nitroglycerin-loaded shear-responsive liposomes in vitro and in vivo. J Control Release 2017; 264:14-23. [PMID: 28803115 DOI: 10.1016/j.jconrel.2017.08.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 08/06/2017] [Accepted: 08/08/2017] [Indexed: 12/19/2022]
Abstract
Liposomes formulated from the 1,3-diamidophospholipid Pad-PC-Pad are shear-responsive and thus promising nano-containers to specifically release a vasodilator at stenotic arteries. The recommended preclinical safety tests for therapeutic liposomes of nanometer size include the in vitro assessment of complement activation and the evaluation of the associated risk of complement activation-related pseudo-allergy (CARPA) in vivo. For this reason, we measured complement activation by Pad-PC-Pad formulations in human and porcine sera, along with the nanopharmaceutical-mediated cardiopulmonary responses in pigs. The evaluated formulations comprised of Pad-PC-Pad liposomes, with and without polyethylene glycol on the surface of the liposomes, and nitroglycerin as a model vasodilator. The nitroglycerin incorporation efficiency ranged from 25% to 50%. In human sera, liposome formulations with 20mg/mL phospholipid gave rise to complement activation, mainly via the alternative pathway, as reflected by the rises in SC5b-9 and Bb protein complex concentrations. Formulations having a factor of ten lower phospholipid content did not result in measurable complement activation. The weak complement activation induced by Pad-PC-Pad liposomal formulations was confirmed by the results obtained by performing an in vivo study in a porcine model, where hemodynamic parameters were monitored continuously. Our study suggests that, compared to FDA-approved liposomal drugs, Pad-PC-Pad exhibits less or similar risks of CARPA.
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Affiliation(s)
- Marzia Buscema
- Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland
| | - Sofiya Matviykiv
- Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland
| | - Tamás Mészáros
- Nanomedicine Research and Education Center, Institute of Pathophysiology, Semmelweis University Budapest, Hungary; SeroScience Ltd., Budapest, Hungary
| | - Gabriela Gerganova
- Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland
| | | | - Ute Mettal
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Dennis Mueller
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Frederik Neuhaus
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Etienne Stalder
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | | | | | - Till Saxer
- Cardiology Division, University Hospital of Geneva, Geneva, Switzerland
| | - Thomas Pfohl
- Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland
| | - János Szebeni
- Nanomedicine Research and Education Center, Institute of Pathophysiology, Semmelweis University Budapest, Hungary; SeroScience Ltd., Budapest, Hungary; Department of Nanobiotechnology and Regenerative Medicine, Faculty of Health, Miskolc University, Miskolc, Hungary
| | - Andreas Zumbuehl
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Bert Müller
- Biomaterials Science Center, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland.
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133
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Preparation of liposomes: A comparative study between the double solvent displacement and the conventional ethanol injection—From laboratory scale to large scale. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.084] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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