51
|
Yoon DY, Guo H, Kim JC. Effect of surfactants on temperature-dependent self-assembling property of copolyethylenimine/cinnamic acid aqueous mixture. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1250216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Dong Youl Yoon
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Korea
| | - Huangying Guo
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Korea
| | - Jin-Chul Kim
- Department of Medical Biomaterials Engineering, College of Biomedical Science and Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon, Kangwon-do, Korea
| |
Collapse
|
52
|
A novel capsule-like structure of micro-sized particles formed by phytosterol ester and γ-cyclodextrin in water. Food Chem 2016; 210:269-75. [DOI: 10.1016/j.foodchem.2016.04.103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 03/28/2016] [Accepted: 04/21/2016] [Indexed: 11/19/2022]
|
53
|
Enhanced gene delivery to the lung using biodegradable polyunsaturated cationic phosphatidylcholine-detergent conjugates. Int J Pharm 2016; 511:205-218. [DOI: 10.1016/j.ijpharm.2016.07.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/06/2016] [Accepted: 07/08/2016] [Indexed: 12/31/2022]
|
54
|
Lechanteur A, Furst T, Evrard B, Delvenne P, Hubert P, Piel G. PEGylation of lipoplexes: The right balance between cytotoxicity and siRNA effectiveness. Eur J Pharm Sci 2016; 93:493-503. [PMID: 27593989 DOI: 10.1016/j.ejps.2016.08.058] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 08/18/2016] [Accepted: 08/29/2016] [Indexed: 12/16/2022]
Abstract
The delivery of small interfering RNA (siRNA) is an attractive therapeutic approach to treat several pathologies, such as viral infections or cancers. However, the stability and the efficacy of these biotherapies are still a major obstacle to their use. Cationic liposomes (DOTAP/Chol/DOPE 1/0.75/0.5M ratio) have been complexed to siRNA (lipoplexes) in order to be administrated by the vaginal route, in the context of HPV16 induced cervical preneoplastic lesions. To overcome the constraint of the cervico-vaginal mucus, PEGylation is required to allow the diffusion of lipoplexes through it. Thereby, PEGylated lipoplexes coated with three types of polyethylene glycol (PEG) as DSPE-PEG2000, DSPE-PEG750 or C8-PEG2000-Ceramide (Ceramide-PEG2000) at different densities have been developed and characterized. PEGylated lipoplexes were successfully prepared and showed a hydrodynamic diameter around 200nm, appropriate for vaginal application. In vitro assays on HPV16 positive cell lines revealed that a positive charge of PEGylated lipoplexes allows a higher mRNA knockdown by siRNA. However, the cationic property is also associated to cytotoxicity. The addition of a high percentage of PEG prevented this toxicity but seemed also to reduce siRNA endosomal escape, probably by steric hindrance. The decreasing of PEG density of Ceramide-PEG2000 to 20% allows the release of siRNA and in consequence, biological activities, contrarily to DSPE-PEG. These results suggest that Ceramide-PEG is more appropriate for siRNA delivery compared to DSPE-PEG. In conclusion, the right balance between cytotoxicity and siRNA effectiveness has been found with the transfection of lipoplexes coated with 20% of Ceramide-PEG2000. This new nanovector could have a high potential against multiple mucosal diseases, such as human papillomavirus-induced genital lesions.
Collapse
Affiliation(s)
- Anna Lechanteur
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, University of Liège, Liège 4000, Belgium; Laboratory of Experimental Pathology, GIGA-Cancer, University of Liège, Liège 4000, Belgium.
| | - Tania Furst
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, University of Liège, Liège 4000, Belgium
| | - Brigitte Evrard
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, University of Liège, Liège 4000, Belgium
| | - Philippe Delvenne
- Laboratory of Experimental Pathology, GIGA-Cancer, University of Liège, Liège 4000, Belgium
| | - Pascale Hubert
- Laboratory of Experimental Pathology, GIGA-Cancer, University of Liège, Liège 4000, Belgium
| | - Géraldine Piel
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, University of Liège, Liège 4000, Belgium
| |
Collapse
|
55
|
Akbari A, Yegani R, Pourabbas B, Behboudi A. Fabrication and study of fouling characteristics of HDPE/PEG grafted silica nanoparticles composite membrane for filtration of Humic acid. Chem Eng Res Des 2016. [DOI: 10.1016/j.cherd.2016.01.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
56
|
Urbanova M, Gajdosova M, Steinhart M, Vetchy D, Brus J. Molecular-Level Control of Ciclopirox Olamine Release from Poly(ethylene oxide)-Based Mucoadhesive Buccal Films: Exploration of Structure–Property Relationships with Solid-State NMR. Mol Pharm 2016; 13:1551-63. [DOI: 10.1021/acs.molpharmaceut.6b00035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Martina Urbanova
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - Marketa Gajdosova
- Veterinary and Pharmaceutical University, Faculty of Pharmacy, Department of Pharmaceutics, Palacky Street 1946/1, 612 42 Brno, Czech Republic
| | - Miloš Steinhart
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - David Vetchy
- Veterinary and Pharmaceutical University, Faculty of Pharmacy, Department of Pharmaceutics, Palacky Street 1946/1, 612 42 Brno, Czech Republic
| | - Jiri Brus
- Institute
of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| |
Collapse
|
57
|
Zhang L, Tian B, Li Y, Lei T, Meng J, Yang L, Zhang Y, Chen F, Zhang H, Xu H, Zhang Y, Tang X. A Copper-Mediated Disulfiram-Loaded pH-Triggered PEG-Shedding TAT Peptide-Modified Lipid Nanocapsules for Use in Tumor Therapy. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25147-25161. [PMID: 26501354 DOI: 10.1021/acsami.5b06488] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Disulfiram, which exhibits marked tumor inhibition mediated by copper, was encapsulated in lipid nanocapsules modified with TAT peptide (TATp) and pH-triggered sheddable PEG to target cancer cells on the basis of tumor environmental specificity. PEG-shedding lipid nanocapsules (S-LNCs) were fabricated from LNCs by decorating short PEG chains with TATp (HS-PEG(1k)-TATp) to form TATp-LNCs and then covered by pH-sensitive graft copolymers of long PEG chains (PGA-g-PEG(2k)). The DSF-S-LNCs had sizes in the range of 60-90 nm and were stable in the presence of 50% plasma. DSF-S-LNCs exhibited higher intracellular uptake and antitumor activity at pH 6.5 than at pH 7.4. The preincubation of Cu showed that the DSF cytotoxicity was based on the accumulation of Cu in Hep G2 cells. Pharmacokinetic studies showed the markedly improved pharmacokinetic profiles of DSF-S-LNCs (AUC= 3921.391 μg/L·h, t(1/2z) = 1.294 h) compared with free DSF (AUC = 907.724 μg/L·h, t(1/2z) = 0.252 h). The in vivo distribution of S-LNCs was investigated using Cy5.5 as a fluorescent probe. In tumor-bearing mice, the delivery efficiency of S-LNCs was found to be 496.5% higher than that of free Cy5.5 and 74.5% higher than that of LNCs in tumors. In conclusion, DSF-S-LNCs increased both the stability and tumor internalization and further increased the cytotoxicity because of the higher copper content.
Collapse
Affiliation(s)
- Ling Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Bin Tian
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Yi Li
- Department of Pharmacology, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Tian Lei
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Jia Meng
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Liu Yang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Yan Zhang
- Normal College, Shenyang University , Shenyang, Liaoning, PR China
| | - Fen Chen
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
- Key Laboratory of Ministry of Education for TCM Viscera-State Theory and Applications, Liaoning University of Traditional Chinese Medicine , Shenyang, Liaoning, PR China
| | - Haotian Zhang
- Department of Pharmacology, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Hui Xu
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Yu Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| | - Xing Tang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University , Shenyang, Liaoning, PR China
| |
Collapse
|
58
|
Synthesis of poly(ethylene glycol) (PEG) grafted silica nanoparticles with a minimum adhesion of proteins via one-pot one-step method. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.07.042] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|