1
|
Wu S, Li N, Yang C, Yan L, Liang X, Ren M, Yang L. Synthesis of cationic branched tea polysaccharide derivatives for targeted delivery of siRNA to hepatocytes. Int J Biol Macromol 2018; 118:808-815. [PMID: 29857104 DOI: 10.1016/j.ijbiomac.2018.05.221] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 05/20/2018] [Accepted: 05/28/2018] [Indexed: 01/01/2023]
Abstract
The cationic branched tea polysaccharide (CTPSA) derivative bearing N-acylurea and 3-(dimethylamino)-1-propylamine residues was synthesized and characterized using FTIR and 1H NMR spectroscopy. A nonspecific siRNA (NsiRNA) was used as a model molecule of functional siRNA that could downregulate over-expressed glycometabolism enzymes in the liver. The result from the agarose gel electrophoresis confirmed that the CTPSA and NsiRNA could form stable complexes when their weight ratio was larger than 18. The zeta potentials and sizes of the complexes were in the range of +8-+15 mv and 120-150 nm, respectively. The CTPSA/NsiRNA complex was observed as nanoparticles with a spherical shape of approximately 100 nm using scanning electron microscopy. The CTPSA derivative and the CTPSA/NsiRNA complexes exhibited lower cytotoxicity in HL-7702 cells when compared with the branched PEI (bPEI) and bPEI/NsiRNA complexes assessed by the Cell Counting Kit-8 assay. The results of flow cytometric analysis and laser confocal microscopy indicated that the CTPSA derivative could effectively target the transfer of the NsiRNA to HL-7702 cells. This work provides a potential approach to promote the CTPSA derivative as a nonviral vector for targeted delivery of functional siRNA to hepatocytes.
Collapse
Affiliation(s)
- Shuyun Wu
- Department of Polymer and Material Science, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-Sen University, Guangzhou 510275, China
| | - Na Li
- Department of Endocrinology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Chuan Yang
- Department of Endocrinology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Li Yan
- Department of Endocrinology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Xuan Liang
- Department of Polymer and Material Science, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-Sen University, Guangzhou 510275, China
| | - Meng Ren
- Department of Endocrinology, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China.
| | - Liqun Yang
- Department of Polymer and Material Science, School of Chemistry, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Provincial Key Laboratory for High Performance Polymer-based Composites, Sun Yat-Sen University, Guangzhou 510275, China.
| |
Collapse
|
2
|
Zhang Z, Schepens B, Nuhn L, Saelens X, Schotsaert M, Callewaert N, De Rycke R, Zhang Q, Moins S, Benali S, Mespouille L, Hoogenboom R, De Geest BG. Influenza-binding sialylated polymer coated gold nanoparticles prepared via RAFT polymerization and reductive amination. Chem Commun (Camb) 2016; 52:3352-5. [PMID: 26823186 DOI: 10.1039/c6cc00501b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on a straightforward strategy to fabricate bioactive glycosylated gold nanoparticles via a combination of RAFT polymerization, carbohydrate ligation through reductive amination and thiol-gold self-assembly. This approach is used for the design of gold nanoparticles decorated with the complex sialylated glycan Neu5Ac-α-2-6-Gal, and we demonstrate multivalent and specific recognition between the nanoparticles, lectins and hemagglutinin on the surface of the influenza virus.
Collapse
Affiliation(s)
- Z Zhang
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
| | - B Schepens
- Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Zwijnaarde, Belgium and Inflammation Research Center, VIB, Technologiepark 927, 9052 Zwijnaarde, Belgium
| | - L Nuhn
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
| | - X Saelens
- Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Zwijnaarde, Belgium and Inflammation Research Center, VIB, Technologiepark 927, 9052 Zwijnaarde, Belgium
| | - M Schotsaert
- Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Zwijnaarde, Belgium and Inflammation Research Center, VIB, Technologiepark 927, 9052 Zwijnaarde, Belgium
| | - N Callewaert
- Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Zwijnaarde, Belgium and Inflammation Research Center, VIB, Technologiepark 927, 9052 Zwijnaarde, Belgium
| | - R De Rycke
- Department of Biomedical Molecular Biology, Ghent University, Technologiepark 927, 9052 Zwijnaarde, Belgium and Inflammation Research Center, VIB, Technologiepark 927, 9052 Zwijnaarde, Belgium
| | - Q Zhang
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Krijgslaan 281, 9000 Ghent, Belgium
| | - S Moins
- Laboratory of Polymeric & Composite Materials, Ctr Innovat & Res Mat & Polymers (CIRMAP), Material Res Inst. and Health Res. Inst., University of Mons, B-7000 Mons, Belgium
| | - S Benali
- Laboratory of Polymeric & Composite Materials, Ctr Innovat & Res Mat & Polymers (CIRMAP), Material Res Inst. and Health Res. Inst., University of Mons, B-7000 Mons, Belgium
| | - L Mespouille
- Laboratory of Polymeric & Composite Materials, Ctr Innovat & Res Mat & Polymers (CIRMAP), Material Res Inst. and Health Res. Inst., University of Mons, B-7000 Mons, Belgium
| | - R Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Krijgslaan 281, 9000 Ghent, Belgium
| | - B G De Geest
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
| |
Collapse
|