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Journal of Liposome Research

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https://www.readbyqxmd.com/read/29745740/co-delivery-of-gambogenic-acid-and-vegf-sirna-with-anionic-liposome-and-polyethylenimine-complexes-to-hepg2-cells
#1
Qiongfang Yu, Bian Zhang, Yali Zhou, Qin Ge, Chang Jiali, Yunna Chen, Kaiqi Zhang, Daiyin Peng, Weidong Chen
Background and Objective The combination of two or more different mechanisms of drugs in the treatment of cancer has become one of the effective methods. The purpose of this study was to successfully prepare a non-viral delivery system that could efficiently co-delivery siRNA and gambogenic acid (GNA) to improve the anti-cancer efficiency in HepG2 cells. Methods The delivery system was prepared by a two-step method. Firstly, the GNA anionic liposome took shape by a solvent evaporation method, and then the liposome was bound to the PEI/siRNA complex by electrostatic interaction to form the final carrier system (lipopolyplexes)...
May 10, 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29685077/physicochemical-study-of-the-protein-liposome-interactions-influence-of-liposome-composition-and-concentration-on-protein-binding
#2
Foteini Papageorgiou, Natassa Pippa, Nikolaos Naziris, Costas Demetzos
The aim of the present study is to investigate the interactions between liposomes and proteins and to evaluate the role of liposomal lipid composition and concentration in the formation of protein corona. Liposomes composed of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) or hydrogenated soybean phosphatidylcholine (HSPC) with 1,2-dipalmitoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (sodium salt) (DPPG), 1,2-dipalmitoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-3000] (DPPE-PEG 3000), cholesterol (CH) or mixtures of these lipids, were prepared at different concentrations by the thin-film hydration method...
April 24, 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29671386/k237-modified-thermosensitive-liposome-enhanced-the-delivery-efficiency-and-cytotoxicity-of-paclitaxel-in-vitro
#3
Xudong Fu, Yuanyuan Lu, Jiaping Guo, Hui Liu, Aiping Deng, Changchun Kuang, Xiangyang Xie
This study aimed to develop novel temperature-sensitive liposomes loading paclitaxel (PTX-TSL) and evaluate them in vitro to improve the delivery efficiency and targeting of PTX. K237 peptide was conjugated to the terminal NHS of 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[hydroxyl succinimidyl (polyethylene glycol)-(DSPE-PEG-NHS), and K237-modified PTX-TSL (K237-PTX-TSL) was prepared using a film dispersion method. K237-TSL encapsulation with calcein was synthesized and used to determine the cellular uptake of TSL...
April 19, 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29671361/liposomal-quercetin-potentiates-maxi-k-channel-openings-in-smooth-muscles-and-restores-its-activity-after-oxidative-stress
#4
Mariia I Melnyk, Dariia O Dryn, Lina T Al Kury, Alexander V Zholos, Anatoly I Soloviev
The effects of quercetin-loaded liposomes (PCL-Q) and their constituents, that is, free quercetin (Q) and 'empty' phosphatidylcholine vesicles (PCL), on maxi-K channel activity were studied in single mouse ileal myocytes before and after H2 O2 -induced oxidative stress. Macroscopic Maxi-K channel currents were recorded using whole-cell patch clamp techniques, while single BKCa channel currents were recorded in the cell-attached configuration. Bath application of PCL-Q (100 μg/ml of lipid and 3 μg/ml of quercetin) increased single Maxi-K channel activity more than threefold, from 0...
April 19, 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29621912/effective-suppression-of-tumour-cells-by-oligoclonal-her2-targeted-delivery-of-liposomal-doxorubicin
#5
Alireza Farasat, Fatemeh Rahbarizadeh, Davoud Ahmadvand, Saeed Ranjbar, Shahryar Khoshtinat Nikkhoi
Synergistic effect of combined antibodies targeting distinct epitopes of a particular tumour antigen has encouraged some clinical trial studies and is now considered as an effective platform for cancer therapy. Providing several advantages over conventional antibodies, variable domain of heavy chain of heavy chain antibodies (VH H) is now major tools in diagnostic and therapeutic applications. Active targeting of liposomal drugs is a promising strategy, resulting in enhanced binding and improved cytotoxicity of tumour cells...
April 6, 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29382287/liposomology-delivering-the-message
#6
Gregory Gregoriadis
No abstract text is available yet for this article.
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/27834116/ethanol-based-proliposome-delivery-systems-of-paclitaxel-for-in-vitro-application-against-brain-cancer-cells
#7
Mohammad Najlah, Mohit Jain, Ka-Wai Wan, Waqar Ahmed, Mohamed Albed Alhnan, David A Phoenix, Kevin M G Taylor, Abdelbary Elhissi
In this study the anticancer activity of paclitaxel-loaded nano-liposomes on glioma cell lines was investigated. Soya phosphatidylcholine:cholesterol (SPC:Chol), hydrogenated soya phosphatidylcholine:cholesterol (HSPC:Chol) or dipalmitoylphosphatidylcholine:cholesterol (DPPC:Chol) in 1:1 mole ratio were used to prepare ethanol-based proliposomes. Following hydration of proliposomes, the size of resulting vesicles was subsequently reduced to nanometer scale via probe-sonication. The resulting formulations were characterized in terms of size, zeta potential and morphology of the vesicles, and entrapment efficiency of paclitaxel (PX) as well as the final pH of the preparations...
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/27809639/polymer-coated-liposomes-for-use-in-the-oral-cavity-a-study-of-the-in-vitro-toxicity-effect-on-cell-permeability-and-interaction-with-mucin
#8
Therese Klemetsrud, Anna-Lena Kjøniksen, Marianne Hiorth, Jette Jacobsen, Gro Smistad
In this study we investigated the in vitro toxicity, impact on cell permeability and mucoadhesive potential of polymer-coated liposomes intended for use in the oral cavity. A TR146 cell line was used as a model. The overall aim was to end up with a selection of safe polymer coated liposomes with promising mucoadhesive properties for drug delivery to the oral cavity. The following polymers were tested: chitosan, low-methoxylated pectin (LM-pectin), high-methoxylated pectin (HM-pectin), amidated pectin (AM-pectin), Eudragit, poly(N-isopropylacrylamide-co-methacrylic acid) (p(NIPAAM-co-MAA)), hydrophobically modified hydroxyethyl cellulose (HM-HEC), and hydrophobically modified ethyl hydroxyethyl cellulose (HM-EHEC)...
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/27788618/optimization-of-prednisolone-loaded-long-circulating-liposomes-via-application-of-quality-by-design-qbd-approach
#9
Bianca Sylvester, Alina Porfire, Dana-Maria Muntean, Laurian Vlase, Lavinia Lupuţ, Emilia Licarete, Alina Sesarman, Marius Costel Alupei, Manuela Banciu, Marcela Achim, Ioan Tomuţă
Quality by design principles (QbD) were used to assist the formulation of prednisolone-loaded long-circulating liposomes (LCL-PLP) in order to gain a more comprehensive understanding of the preparation process. This approach enables us to improve the final product quality in terms of liposomal drug concentration, encapsulation efficiency and size, and to minimize preparation variability. A 19-run D-optimal experimental design was used to study the impact of the highest risk factors on PLP liposomal concentration (Y1 - μg/ml), encapsulation efficiency (Y2 -%) and size (Y3 -nm)...
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/27788607/investigating-the-penetrating-potential-of-nanocomposite-%C3%AE-cycloethosomes-development-using-central-composite-design-in-vitro-and-ex-vivo-characterization
#10
Nida Akhtar, Anurag Verma, Kamla Pathak
CONTEXT: Atopic dermatitis (AD) is a chronic skin disease characterized by inflammation of the skin and has exhibited remarkable repercussions on human life across the globe. Fluocinolone acetonide (FA), a topical corticosteroid is employed in the treatment of atopic dermatitis, but suffers from limited penetration into deeper epidermis of atopic skin. OBJECTIVE: The present investigation was focused to explore the utility of β-cylcoethosomes in improvising the penetration deep into the skin...
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/27750473/investigations-of-the-influence-of-liposome-composition-on-vesicle-stability-and-drug-transfer-in-human-plasma-a-transfer-study
#11
Stephan Holzschuh, Kathrin Kaeß, Guilherme Volpe Bossa, Christiane Decker, Alfred Fahr, Sylvio May
Liposomal delivery constitutes a promising approach for i.v. administration of temoporfin (mTHPC) because lipid membranes can host these drug molecules. This study investigates the transfer and release of mTHPC to plasma proteins and stability of various liposomal formulations. To this end, we employed traces of radioactive markers and studied the effects of fatty acid chain length and the degree of saturation in the lipophilic tail, addition of cholesterol and PEGylation of the membrane surface and different drug-to-lipid ratios (DLRs)...
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/27733083/lipid-nano-bubble-combined-with-ultrasound-for-anti-keloids-therapy
#12
Xiao Qing Wang, Zhou-Na Li, Qi-Ming Wang, Hong-Yan Jin, Zhonggao Gao, Zhe-Hu Jin
Keloids were characterized by excessive growth of fibrous tissues, and shared several pathological characteristics with cancer. They did put physical and emotional stress on patients in that keloids could badly change appearance of patients. N-(4-hydroxyphenyl) retinamide (4HPR) showed cytotoxic activity on a wide variety of invasive-growth cells. Our work was aim to prepare N-(4-hydroxyphenyl) retinamide-loaded lipid microbubbles (4HPR-LM) combined with ultrasound for anti-keloid therapy. 4HPR-loaded liposomes (4HPR-L) were first prepared by film evaporation method, and then 4HPR-LM were manufactured by mixing 4HPR-L and perfluoropentane (PFP) with ultrasonic cavitation method...
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/27667097/enhanced-skin-deposition-and-delivery-of-voriconazole-using-ethosomal-preparations
#13
Waleed Faisal, Ghareb M Soliman, Ahmed M Hamdan
Despite its broad-spectrum antifungal properties, voriconazole has many side effects when administered systemically. The aim of this work was to develop an ethosomal topical delivery system for voriconazole and test its potential to enhance the antifungal properties and skin delivery of the drug. Voriconazole was encapsulated into various ethosomal preparations and the effect of phospholipid and ethanol concentrations on the ethosomes properties were evaluated. The ethosomes were evaluated for drug encapsulation efficiency, particle size and morphology and antifungal efficacy...
March 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29355060/investigating-superiority-of-novel-bilosomes-over-niosomes-in-the-transdermal-delivery-of-diacerein-in-vitro-characterization-ex-vivo-permeation-and-in-vivo-skin-deposition-study
#14
Diana E Aziz, Aly A Abdelbary, Abdelhalim I Elassasy
Skin is considered the most accessible organ of the body because of its underlying capillary network. However, stratum corneum (SC), the upper most layer of skin, represents major diffusional barrier for most drugs. Hence, the use of edge activators (EAs) in designing novel elastic vesicles is hypothesized to impart their lipid bilayer with ultra-flexibility to trespass SC by high self-optimizing deformability. To confirm this hypothesis, this work aimed at developing novel bilosomes by modulating conventional niosomal composition using different bile salts as EAs and investigating their superiority over niosomes for transdermal delivery of diacerein (DCN), as model drug...
February 6, 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29262741/liposomal-co-delivery-based-quantitative-evaluation-of-chemosensitivity-enhancement-in-breast-cancer-stem-cells-by-knockdown-of-grp78-clu
#15
Annie Agnes Suganya Samson, Solji Park, Sung-Yon Kim, Dal-Hee Min, Noo Li Jeon, Joon Myong Song
Resistance to chemotherapy is a key factor in the inefficacy of various forms of treatments for cancer. In the present study, chemo-resistant proteins, including glucose-regulated protein 78 (GRP78)/clusterin (CLU) targeted 1,2-dioleoyloxy-3-trimethylammoniumpropane (DOTAP) liposomes, were developed as a delivery system for co-delivery of camptothecin (CPT) and GRP78 siRNA/CLU siRNA. Their drug/gene co-deliveries were quantitatively assessed in cancer stem cells (CSC) and MCF-7 cells. DOTAP-CPT/siRNA were prepared via electrostatic interaction on GRP78 siRNA or CLU siRNA...
January 8, 2018: Journal of Liposome Research
https://www.readbyqxmd.com/read/29179636/development-and-in-vitro-in-vivo-evaluation-of-artemether-and-lumefantrine-co-loaded-nanoliposomes-for-parenteral-delivery
#16
Kashif Shakeel, Sheikh Raisuddin, Sadath Ali, Syed Sarim Imam, Md Akhlaquer Rahman, Gaurav Kumar Jain, Farhan Jalees Ahmad
Combination therapy of artemether (ART) and lumefantrine (LUM) is well-established for the treatment of uncomplicated malaria worldwide. Nanoliposomes (NLs) encapsulating both drugs were prepared and freeze-dried. The lyophilized nanoliposomes exhibited high entrapment efficiency of artemether (66.18%), relatively low entrapment efficiency of lumefantrine (53.46%), low average size diameter (125.3 nm) and found to be stable at 4 °C for 60 days without significant change in mean particle diameter and drug entrapment efficiencies...
December 13, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/29166813/the-efficacy-of-rgd-modified-liposomes-loaded-with-vinorelbine-plus-tetrandrine-in-treating-resistant-brain-glioma
#17
Xue-Tao Li, Wei Tang, Hong-Jun Xie, Shuang Liu, Xiao-Li Song, Yao Xiao, Xin Wang, Lan Cheng, Gui-Rong Chen
Brain glioma is one of the most common and devastating intracranial malignancies with a high mortality. Chemotherapy for brain glioma is not ideal due to blood brain barrier (BBB) and multidrug resistance (MDR). The objectives of the present study were to develop a kind of RGD (Arg-Gly-Asp) tripeptide modified vinorelbine plus tetrandrine liposomes to achieve BBB transportation, MDR reversion and glioma cell targeting simultaneously. The studies were performed on glioma cells, resistant glioma cells and glioma-bearing mice...
December 7, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/29141481/liposome-supported-peritoneal-dialysis-in-rat-amitriptyline-exposure-with-and-without-intravenous-lipid-emulsion
#18
Robin Chapman, Martyn Harvey, Paul Davies, Zimei Wu, Grant Cave
Liposome supported peritoneal dialysis is a recently described technique which may eventually be applicable in the clinical scenario of the intoxicated patient. We evaluated the hypothesis that intravenous injection of lipid emulsion (ILE) would augment acidic pH gradient liposome supported peritoneal dialysis (LSPD). Orogastrically amitriptyline dosed rats were treated with either Sodium bicarbonate (NaHCO3) intravenously and standard intraperitoneal dialysate (Group A); NaHCO3 intravenously and LSPD (Group B); or ILE and LSPD (Group C)...
December 5, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/29160732/optimization-and-characterization-of-sertaconazole-nitrate-flexisomes-embedded-in-hydrogel-for-improved-antifungal-activity
#19
Satish K Mandlik, Shridhar S Siras, Kiran R Birajdar
The aim of the present research work was to develop, characterize and optimize sertaconazole nitrate (STZN) embedded flexisomes (STZN-FS) to improve the cutaneous anti-fungal activity of STZN. Flexisomes are self-aggregating, flexible, deformable lipidic vesicles possessing an aqueous core. A 32 factorial design was implemented to optimize the effects of the critical material attributes of concentration of phospholipid (X1 ) and edge activator (X2 ) on the critical quality attributes of particle size (Y1 ), entrapment efficiency (Y2 ), and deformability index (Y3 )...
December 4, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/27667265/quercetin-containing-self-assemble-proliposome-preparation-and-evaluation
#20
Jin Ren, Zhengjie Fang, Liqun Jiang, Qian Du
The purpose of this study was to develop a liquid self-assemble proliposome for quercetin oral delivery. This liquid proliposome was prepared by dissolving phospholipids, surfactants and drug in ethanol. There was only one step in the preparation process of this liquid self-assemble proliposome and no special devices were required. The mechanism about proliposome transformation was discussed. Quercetin proliposomes with different cremorphor RH40 concentrations (0%, 20%, 23%, 26%, 30%) were prepared. The particle size and polydispersity index decreased as cremorphor RH40 concentration increased...
December 2017: Journal of Liposome Research
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