1
|
Ciptawati E, Takase H, Watanabe NM, Okamoto Y, Nur H, Umakoshi H. Preparation and Characterization of Biodegradable Sponge-like Cryogel Particles of Chitosan via the Inverse Leidenfrost (iLF) Effect. ACS OMEGA 2024; 9:2383-2390. [PMID: 38250365 PMCID: PMC10795030 DOI: 10.1021/acsomega.3c06639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024]
Abstract
Chitosan-based cryogel particles were synthesized using the inverse Leidenfrost (iLF) effect, with glutaraldehyde employed as the cross-linker. The resulting cryogels exhibited a sponge-like morphology with micrometer-sized interconnected pores and demonstrated resilience, withstanding up to three compression-release cycles. These characteristics highlight the potential of chitosan cryogels for diverse applications, including adsorption and biomedical uses. We further investigated the influence of varying acetic acid concentrations on the properties of the chitosan cryogels. Our findings revealed that the particle size distribution of the cryogels ranged from 1300 to 2900 μm. As the concentration of acetic acid increased, the swelling degree of the chitosan cryogels decreased, stabilizing at an approximate value of around 6 at 0.03 mol of acetic acid. Additionally, the shift in the absorption peak of the OH and free amino groups from 3261 to 3404 cm-1 confirmed the cross-linking reaction between chitosan and glutaraldehyde.
Collapse
Affiliation(s)
- Endang Ciptawati
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
- Department
of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Hayato Takase
- Department
of Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Nozomi Morishita Watanabe
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Yukihiro Okamoto
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Hadi Nur
- Department
of Chemistry, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Hiroshi Umakoshi
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| |
Collapse
|
2
|
Zhuang Y, Zhu L, Chen X, Chen J, Ye Z, Kang J, Wang X, Han Z. Synthesis of carbon dot based Schiff bases and selective anticancer activity in glioma cells. RSC Adv 2024; 14:1952-1961. [PMID: 38192314 PMCID: PMC10772990 DOI: 10.1039/d3ra06411e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 01/02/2024] [Indexed: 01/10/2024] Open
Abstract
Schiff bases have remarkable anticancer activity and are used for glioma therapy. However, the poor water solubility/dispersibility limits their therapeutic potential in biological systems. To address this issue, carbon dots (CDs) have been utilized to enhance the dispersibility in water and biological efficacy of Schiff bases. The amino groups on the surface of CDs were conjugated effectively with the aldehyde group of terephthalaldehyde to form novel CD-based Schiff bases (CDSBs). The results of the MTT assays demonstrate that CDSBs have significant anticancer activity in glioma GL261 cells and U251 cells, with IC50 values of 17.9 μg mL-1 and 14.9 μg mL-1, respectively. CDSBs have also been found to have good biocompatibility with normal glial cells. The production of reactive oxygen species (ROS) in GL261 glioma cells showed that CDSBs, at a concentration of 44 μg mL-1, resulted in approximately 13 times higher intracellular ROS production than in the control group. These experiments offer evidence that CDSBs induce mitochondrial damage, leading to a reduction in mitochondrial membrane potential in GL261 cells. In particular, in this work, CDs serve not as carriers, but as an integral part of the anticancer drugs, which can expand the role of CDs in cancer treatment.
Collapse
Affiliation(s)
- Yafeng Zhuang
- School of Pharmacy, Fujian Medical University Fuzhou Fujian 350122 PR China
| | - Liping Zhu
- Medical Research Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University Fuzhou 350011 Fujian PR China
- NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-Human Primate, Fujian Maternity and Child Health Hospital Fuzhou 350011 Fujian PR China
| | - Xiaoping Chen
- School of Pharmacy, Fujian Medical University Fuzhou Fujian 350122 PR China
| | - Jing Chen
- School of Pharmacy, Fujian Medical University Fuzhou Fujian 350122 PR China
| | - Zhoujie Ye
- Medical Research Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University Fuzhou 350011 Fujian PR China
- NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-Human Primate, Fujian Maternity and Child Health Hospital Fuzhou 350011 Fujian PR China
| | - Jie Kang
- School of Pharmacy, Fujian Medical University Fuzhou Fujian 350122 PR China
| | - Xinrui Wang
- Medical Research Center, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University Fuzhou 350011 Fujian PR China
- NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-Human Primate, Fujian Maternity and Child Health Hospital Fuzhou 350011 Fujian PR China
| | - Zhizhong Han
- School of Pharmacy, Fujian Medical University Fuzhou Fujian 350122 PR China
| |
Collapse
|
3
|
Chastagnier L, Marquette C, Petiot E. In situ transient transfection of 3D cell cultures and tissues, a promising tool for tissue engineering and gene therapy. Biotechnol Adv 2023; 68:108211. [PMID: 37463610 DOI: 10.1016/j.biotechadv.2023.108211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/26/2023] [Accepted: 07/09/2023] [Indexed: 07/20/2023]
Abstract
Various research fields use the transfection of mammalian cells with genetic material to induce the expression of a target transgene or gene silencing. It is a tool widely used in biological research, bioproduction, and therapy. Current transfection protocols are usually performed on 2D adherent cells or suspension cultures. The important rise of new gene therapies and regenerative medicine in the last decade raises the need for new tools to empower the in situ transfection of tissues and 3D cell cultures. This review will present novel in situ transfection methods based on a chemical or physical non-viral transfection of cells in tissues and 3D cultures, discuss the advantages and remaining gaps, and propose future developments and applications.
Collapse
Affiliation(s)
- Laura Chastagnier
- 3D Innovation Lab - 3d.FAB - ICBMS, University Claude Bernard Lyon 1, Université Lyon 1, CNRS, INSA, CPE-Lyon, UMR 5246, bat. Lederer, 5 rue Gaston Berger, 69100 Villeurbanne, France
| | - Christophe Marquette
- 3D Innovation Lab - 3d.FAB - ICBMS, University Claude Bernard Lyon 1, Université Lyon 1, CNRS, INSA, CPE-Lyon, UMR 5246, bat. Lederer, 5 rue Gaston Berger, 69100 Villeurbanne, France
| | - Emma Petiot
- 3D Innovation Lab - 3d.FAB - ICBMS, University Claude Bernard Lyon 1, Université Lyon 1, CNRS, INSA, CPE-Lyon, UMR 5246, bat. Lederer, 5 rue Gaston Berger, 69100 Villeurbanne, France.
| |
Collapse
|
4
|
Lee J, Kwon YE, Edwards SD, Guim H, Jae Jeong K. Improved biocompatibility of dendrimer-based gene delivery by histidine-modified nuclear localization signals. Int J Pharm 2023; 644:123299. [PMID: 37558147 DOI: 10.1016/j.ijpharm.2023.123299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/29/2023] [Accepted: 08/06/2023] [Indexed: 08/11/2023]
Abstract
Polyamidoamine (PAMAM) dendrimers have been explored as an alternative to polyethylenimine (PEI) as a gene delivery carrier because of their relatively low cytotoxicity and excellent biocompatibility. The transfection efficiency of PAMAM dendrimers can be improved by the addition of nuclear localization signal (NLS), a positively charged peptide sequence recognized by cargo proteins in the cytoplasm for nuclear transport. However, increased positive charges from NLS can cause damage to the cytoplasmic and mitochondrial membranes and lead to reactive oxygen species (ROS)-induced cytotoxicity. This negative effect of NLS can be negated without a significant reduction in transfection efficiency by adding histidine, an essential amino acid known as a natural antioxidant, to NLS. However, little is known about the exact mechanism by which histidine reduces cytotoxicity of NLS-modified dendrimers. In this study, we selected cystamine core PAMAM dendrimer generation 2 (cPG2) and conjugated it with NLS derived from Merkel cell polyomavirus large T antigen and histidine (n = 0-3) to improve transfection efficiency and reduce cytoxicity. NLS-modified cPG2 derivatives showed similar or higher transfection efficiency than PEI 25 kDa in NIH3T3 and human mesenchymal stem cells (hMSC). The cytotoxicity of NLS-modified cPG2 derivatives was substantially lower than PEI 25 kDa and was further reduced as the number of histidine in NLS increased. To understand the mechanism of cytoprotective effect of histidine-conjugated NLS, we examined ROS scavenging, hydroxyl radical generation and mitochondrial membrane potential as a function of the number of histidine in NLS. As the number of hisidine increased, cPG2 scavenged ROS more effectively as evidenced by the hydroxyl radical antioxidant capacity (HORAC) assay. This was consistent with the reduced intracellular hydroxyl radical concentration measured by 2',7'-dichlorodihydrofluorescein diacetate (DCFDA) assay in NIH3T3. Finally, fluorescence imaging with JC-1 confirmed that the mitochondrial membranes of NIH 3T3 were well-protected during the transfection when NLS contained histidine. These experimental results confirm the hypothesis that histidine residues scavenge ROS that is generated during the transfection process, preventing the excessive damage to mitochondrial membranes, leading to reduced cytotoxicity.
Collapse
Affiliation(s)
- Jeil Lee
- Department of Chemical Engineering, University of New Hampshire, Durham, New Hampshire 03824, United States
| | - Yong-Eun Kwon
- Center for Scientific Instrumentation, Korea Basic Science Institute, 169-148 Gwahak-ro, Yuseong-gu, Daejeon 34133, Republic of Korea
| | - Seth D Edwards
- Department of Chemical Engineering, University of New Hampshire, Durham, New Hampshire 03824, United States
| | - Hwanuk Guim
- Research Center for Materials Analysis, Korea Basic Science Institute, 169-148 Gwahak-ro, Yuseong-gu, Daejeon 34133, Republic of Korea
| | - Kyung Jae Jeong
- Department of Chemical Engineering, University of New Hampshire, Durham, New Hampshire 03824, United States.
| |
Collapse
|
5
|
Drozd N, Lunkov A, Shagdarova B, Il’ina A, Varlamov V. New N-Methylimidazole-Functionalized Chitosan Derivatives: Hemocompatibility and Antibacterial Properties. Biomimetics (Basel) 2023; 8:302. [PMID: 37504190 PMCID: PMC10807654 DOI: 10.3390/biomimetics8030302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/27/2023] [Accepted: 07/07/2023] [Indexed: 07/29/2023] Open
Abstract
Novel imidazole derivatives of the low molecular weight chitosan N-(2-hydroxypropyl)-1H-1,2,3-triazol-4-yl)methyl)-1-methyl-1H-imidazol-3-ium chitosan chloride (NMIC) were synthesized using copper-catalyzed azide-alkyne cycloaddition (CuAAC). The degrees of substitution (DSs) for the new derivatives were 18-76%. All chitosan derivatives (2000 µg/mL) were completely soluble in water. The antimicrobial activity of the new compounds against E. coli and S. epidermidis was studied. The effect of chitosan derivatives on blood and its components was studied. NMIC samples (DS 34-76%) at a concentration <10 μg/mL had no effect on blood and plasma coagulation. Chitosan derivatives (DS 18-76%) at concentrations of ≥83 μg/mL in blood and ≥116.3 μg/mL in plasma resulted in a prolongation of the clotting time of blood and plasma, positively related to the DS. At concentrations up to 9.1 μg/mL, NMIC did not independently provoke platelet aggregation. The degree of erythrocyte hemolysis upon contact with NMIC samples (2.5-2500 μg/mL) was below 4%. The inhibition of blood/plasma coagulation indicates the promising use of the studied samples to modify the surface of medical materials in order to achieve thromboresistance.
Collapse
Affiliation(s)
- Natalia Drozd
- National Medical Center for Hematology, 4, Novoi Zykovsky Prospect, Moscow 125167, Russia
| | - Alexey Lunkov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect, 33, Build. 2, Moscow 119071, Russia; (A.L.); (B.S.); (A.I.); (V.V.)
| | - Balzhima Shagdarova
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect, 33, Build. 2, Moscow 119071, Russia; (A.L.); (B.S.); (A.I.); (V.V.)
| | - Alla Il’ina
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect, 33, Build. 2, Moscow 119071, Russia; (A.L.); (B.S.); (A.I.); (V.V.)
| | - Valery Varlamov
- Institute of Bioengineering, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect, 33, Build. 2, Moscow 119071, Russia; (A.L.); (B.S.); (A.I.); (V.V.)
| |
Collapse
|
6
|
Ali MA, Aswathy KA, Munuswamy-Ramanujam G, Jaisankar V. Pyridine and isoxazole substituted 3-formylindole-based chitosan Schiff base polymer: Antimicrobial, antioxidant and in vitro cytotoxicity studies on THP-1 cells. Int J Biol Macromol 2023; 225:1575-1587. [PMID: 36436605 DOI: 10.1016/j.ijbiomac.2022.11.214] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/15/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
This paper presents the synthesis of two new chitosan Schiff base (CSB) polymers, namely, 2PCT and 4MCT based on pyridin-2-ylmethyl-1H-indole-3-carbaldehyde and 1-(4-methyl-3,5-dimethylisoxazole)-1H-indole-3-carbaldehyde with chitosan (CT). The structural features of CSB polymers were confirmed by Fourier-transform infrared (FTIR) and proton nuclear magnetic resonance (1H NMR) spectroscopy and their antimicrobial activity was evaluated against Staphylococcus aureus, Escherichia coli and Candida albicans. The antioxidant studies found that both 2PCT and 4MCT presented significant free radical scavenging activity with IC50 at 169.01 and 372.84 μg/mL, respectively. The cell viability results obtained from in vitro cytotoxicity studies performed using human monocyte leukemia (THP-1) cells were found to be 75.6 ± 0.25 % and 79.1 ± 1.5 % for 2PCT and 4MCT, respectively, at a concentration of 10 mg/mL. Flow cytometry analysis demonstrated the reducing ability of CSB polymers on intracellular reactive oxygen species (ROS) in THP-1 cells. The overall results of antioxidant activity, in vitro biocompatibility and ability to reduce the intracellular ROS production emphasized that the CSB polymers prepared could serve as a potential biomaterial in biomedical applications, such as wound treatment process.
Collapse
Affiliation(s)
- M Ameer Ali
- Department of Chemistry, The New College (Autonomous), Chennai 600014, Tamil Nadu, India; Department of Chemistry, Presidency College (Autonomous), Chennai 600005, Tamil Nadu, India
| | - K A Aswathy
- Division of Molecular Biology and Immuno Biology, IIISM, SRM IST, Kattankulathur, 603203, Tamil Nadu, India
| | - Ganesh Munuswamy-Ramanujam
- Division of Molecular Biology and Immuno Biology, IIISM, SRM IST, Kattankulathur, 603203, Tamil Nadu, India; Department of Chemistry, Faculty of Science & Humanities, SRM IST, Kattankulathur, 603203, Tamil Nadu, India
| | - V Jaisankar
- Department of Chemistry, Presidency College (Autonomous), Chennai 600005, Tamil Nadu, India.
| |
Collapse
|
7
|
Ali MA, Musthafa SA, Munuswamy-Ramanujam G, Jaisankar V. 3-Formylindole-based chitosan Schiff base polymer: Antioxidant and in vitro cytotoxicity studies on THP-1 cells. Carbohydr Polym 2022; 290:119501. [PMID: 35550779 DOI: 10.1016/j.carbpol.2022.119501] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 03/29/2022] [Accepted: 04/13/2022] [Indexed: 11/27/2022]
Abstract
Two imine derivatives of chitosan (i-CTs), namely 2FCT and 5MCT, were synthesized by reacting chitosan (CT) with 2-(3-formyl-1H-indol-1yl)acetonitrile (2F), and 5-methoxyindole-3-carbaldehyde (5M), respectively. The antimicrobial evaluation of i-CTs exhibited stronger inhibition effect against Staphylococcus aureus, Escherichia coli and Candida albicans. The antioxidant activity of 2FCT and 5MCT showed strong scavenging ability with IC50 2.31 and 6.92 μg/mL, respectively. The results of in vitro cytotoxicity of 2FCT and 5MCT examined using human monocyte leukemia (THP-1) cells indicate no cytotoxic effect on host cells and the value of cell viability was found to be 87.08 and 84.47%, respectively. Measurement of intracellular Reactive Oxygen Species (ROS) production by flow cytometry analysis revealed that the 2FCT and 5MCT reduced the ROS generation by 83 and 43%, respectively. In summary, these findings show that i-CTs synthesized to be promising biomaterial for biomedical applications such as wound healing.
Collapse
Affiliation(s)
- M Ameer Ali
- Department of Chemistry, The New College (Autonomous), Chennai 600014, TN, India; Department of Chemistry, Presidency College (Autonomous), Chennai 600005, TN, India
| | - Shazia Anjum Musthafa
- Division of Molecular Biology and Immuno Biology, IIISM, SRM IST, Kattankulathur 603203, TN, India
| | - Ganesh Munuswamy-Ramanujam
- Division of Molecular Biology and Immuno Biology, IIISM, SRM IST, Kattankulathur 603203, TN, India; Department of Chemistry, Faculty of Science & Humanities, SRM IST, Kattankulathur 603203, TN, India
| | - V Jaisankar
- Department of Chemistry, Presidency College (Autonomous), Chennai 600005, TN, India.
| |
Collapse
|
8
|
Alkabli J. Progress in preparation of thiolated, crosslinked, and imino-chitosan derivatives targeting specific applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.110998] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
9
|
Alvarez Echazú MI, Antona ME, Perna O, Olivetti CE, Alvarez GS, Macri EV, Perez CJ, Czerner M, Friedman SM, Desimone MF. Dodecenylsuccinic anhydride modified chitosan hydrogels for the sustained delivery of hydrophobic drugs. The case of thymol buccal delivery. J Appl Polym Sci 2022. [DOI: 10.1002/app.51432] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- María I. Alvarez Echazú
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - María E. Antona
- Facultad de Odontología, Cátedra de Bioquímica General y Bucal Universidad de Buenos Aires Caba Argentina
| | - Oriana Perna
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - Christian E. Olivetti
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - Gisela S. Alvarez
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| | - Elisa V. Macri
- Facultad de Odontología, Cátedra de Bioquímica General y Bucal Universidad de Buenos Aires Caba Argentina
| | - Claudio J. Perez
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Grupo Ciencia y Tecnología de Polímeros Universidad Nacional de Mar del Plata Mar del Plata Argentina
| | - Marina Czerner
- Grupo de Investigación Preservación y Calidad de Alimentos INCITAA‐Facultad de Ingeniería UNMDP Mar del Plata Argentina
| | - Silvia M. Friedman
- Facultad de Odontología, Cátedra de Bioquímica General y Bucal Universidad de Buenos Aires Caba Argentina
| | - Martín F. Desimone
- Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica Buenos Aires Argentina
| |
Collapse
|
10
|
Gopalakrishnan AK, Angamaly SA, Velayudhan MP. An Insight into the Biological Properties of Imidazole‐Based Schiff Bases: A Review. ChemistrySelect 2021. [DOI: 10.1002/slct.202102619] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Anjali K. Gopalakrishnan
- Department of Applied Chemistry Cochin University of Science and Technology, Kochi 22 Kerala India
| | - Shanty A. Angamaly
- Department of Applied Chemistry Cochin University of Science and Technology, Kochi 22 Kerala India
| | - Mohanan P. Velayudhan
- Department of Applied Chemistry Cochin University of Science and Technology, Kochi 22 Kerala India
| |
Collapse
|
11
|
Olim F, Neves AR, Vieira M, Tomás H, Sheng R. Self‐Assembly of Cholesterol‐Doxorubicin and TPGS into Prodrug‐Based Nanoparticles with Enhanced Cellular Uptake and Lysosome‐Dependent Pathway in Breast Cancer Cells. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202000337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Filipe Olim
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Ana Rute Neves
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Mariana Vieira
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Helena Tomás
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| | - Ruilong Sheng
- CQM – Centro de Química da Madeira, MMRG Universidade da Madeira Campus da Penteada Funchal 9020‐105 Portugal
| |
Collapse
|
12
|
Kordestani N, Rudbari HA, Fateminia Z, Caljon G, Maes L, Mineo PG, Cordaro A, Mazzaglia A, Scala A, Micale N. Antimicrobial and antiprotozoal activities of silver coordination polymers derived from the asymmetric halogenated Schiff base ligands. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | | | - Guy Caljon
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH) University of Antwerp Antwerp Belgium
| | - Louis Maes
- Laboratory of Microbiology, Parasitology and Hygiene (LMPH) University of Antwerp Antwerp Belgium
| | - Placido G. Mineo
- Department of Chemical Sciences University of Catania Catania Italy
- Institute of Polymers, Composites and Biomaterials (CNR‐IPCB) Catania Italy
| | - Annalaura Cordaro
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
- CNR‐ISMN c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Antonino Mazzaglia
- CNR‐ISMN c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Nicola Micale
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| |
Collapse
|
13
|
Kandasamy G, Danilovtseva EN, Annenkov VV, Krishnan UM. Poly(1-vinylimidazole) polyplexes as novel therapeutic gene carriers for lung cancer therapy. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:354-369. [PMID: 32190532 PMCID: PMC7061483 DOI: 10.3762/bjnano.11.26] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Accepted: 01/20/2020] [Indexed: 05/08/2023]
Abstract
The present work explores the ability of poly(1-vinylimidazole) (PVI) to complex small interfering RNA (siRNA) silencing vascular endothelial growth factor (VEGF) and the in vitro efficiency of the formed complexes in A549 lung cancer cells. The polyplex formed was found to exhibit 66% complexation efficiency. The complexation was confirmed by gel retardation assays, FTIR and thermal analysis. The blank PVI polymer was not toxic to cells. The polyplex was found to exhibit excellent internalization and escaped the endosome effectively. The polyplex was more effective than free siRNA in silencing VEGF in lung cancer cells. The silencing of VEGF was quantified using Western blot and was also reflected in the depletion of HIF-1α levels in the cells treated with the polyplex. VEGF silencing by the polyplex was found to augment the cytotoxic effects of the chemotherapeutic agent 5-fluorouracil. Microarray analysis of the mRNA isolated from cells treated with free siRNA and the polyplex reveal that the VEGF silencing by the polyplex also altered the expression levels of several other genes that have been connected to the proliferation and invasion of lung cancer cells. These results indicate that the PVI complexes can be an effective agent to counter lung cancer.
Collapse
Affiliation(s)
- Gayathri Kandasamy
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur – 613401, Tamil Nadu, India
| | - Elena N Danilovtseva
- Limnological Institute of the Siberian Branch of the Russian Academy of Sciences, 3, Ulan-Batorskaya St., P.O. Box 278, Irkutsk, 664033, Russia
| | - Vadim V Annenkov
- Limnological Institute of the Siberian Branch of the Russian Academy of Sciences, 3, Ulan-Batorskaya St., P.O. Box 278, Irkutsk, 664033, Russia
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur – 613401, Tamil Nadu, India
| |
Collapse
|
14
|
Kamra M, Moitra P, Ponnalagu D, Karande AA, Bhattacharya S. New Water-Soluble Oxyamino Chitosans as Biocompatible Vectors for Efficacious Anticancer Therapy via Co-Delivery of Gene and Drug. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37442-37460. [PMID: 31434476 DOI: 10.1021/acsami.9b09485] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Among the many nonviral gene delivery vectors, chitosan, being a polysaccharide of natural origin, has gained special importance. In this report, chitosan (CS) has been solubilized in water by preparing its O-carboxymethyl derivative, CS(CH2COOH), with an optimum degree of carboxymethylation. This has been further derivatized to get the pyridine-substituted product (py)CS(CH2COOH), where the degree of pyridine substitution (47%) was optimized based on zeta potential measurements. The optimized formulation showed a high gene binding ability, forming nanosized positively charged polyelectrolyte complexes with DNA. These polyplexes were stable to DNase and physiological polyanions such as heparin. They also exhibited minimal toxicity in vitro and showed transfection levels comparable to the commercial standard Lipofectamine 2000 and much higher than polyethylenimine (MW, 25 kDa). Additionally, in this study, a hitherto unknown oxyamine derivative of chitosan has been prepared by phthaloyl protection, tosylation, and Gabriel's phthalimide synthesis. Nearly 40% of the primary alcohols were successfully converted to oxyamino functionality, which was used for forming oxime with the anticancer drug doxorubicin. The pH sensitivity of the oxime ether linkage and stability under biologically relevant conditions were then used to establish the compound as a versatile drug delivery vector. Co-delivery of functional gene (p53) and drug (doxorubicin) was accomplished in vitro and in vivo with the chitosan-pyridine imine vector (py)CS(CH2COOH) and the newly synthesized doxorubicin oxime ether CS(Dox). Complete tumor regression with no tumor recurrence and appreciable survivability point to the in vivo effectiveness and biocompatibility of the designed composite formulation. Overall, the pH sensitivity of the oxime linkage aiding slow and steady drug release, together with the sustained gene expression by pyridine-tethered carboxymethyl chitosan, allows us to generate a nanobiocomposite with significantly high anticancer therapeutic potential.
Collapse
|
15
|
Kravanja G, Primožič M, Knez Ž, Leitgeb M. Chitosan-based (Nano)materials for Novel Biomedical Applications. Molecules 2019; 24:E1960. [PMID: 31117310 PMCID: PMC6572373 DOI: 10.3390/molecules24101960] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/15/2019] [Accepted: 05/18/2019] [Indexed: 02/03/2023] Open
Abstract
Chitosan-based nanomaterials have attracted significant attention in the biomedical field because of their unique biodegradable, biocompatible, non-toxic, and antimicrobial nature. Multiple perspectives of the proposed antibacterial effect and mode of action of chitosan-based nanomaterials are reviewed. Chitosan is presented as an ideal biomaterial for antimicrobial wound dressings that can either be fabricated alone in its native form or upgraded and incorporated with antibiotics, metallic antimicrobial particles, natural compounds and extracts in order to increase the antimicrobial effect. Since chitosan and its derivatives can enhance drug permeability across the blood-brain barrier, they can be also used as effective brain drug delivery carriers. Some of the recent chitosan formulations for brain uptake of various drugs are presented. The use of chitosan and its derivatives in other biomedical applications is also briefly discussed.
Collapse
Affiliation(s)
- Gregor Kravanja
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
| | - Mateja Primožič
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
| | - Željko Knez
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
- University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia.
| | - Maja Leitgeb
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
- University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia.
| |
Collapse
|
16
|
Antony R, Arun T, Manickam STD. A review on applications of chitosan-based Schiff bases. Int J Biol Macromol 2019; 129:615-633. [PMID: 30753877 DOI: 10.1016/j.ijbiomac.2019.02.047] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/01/2019] [Accepted: 02/07/2019] [Indexed: 02/07/2023]
Abstract
Biopolymers have become very attractive as they are degradable, biocompatible, non-toxic and renewable. Due to the intrinsic reactive amino groups, chitosan is vibrant in the midst of other biopolymers. Using the versatility of these amino groups, various structural modifications have been accomplished on chitosan through certain chemical reactions. Chemical modification of chitosan via imine functionalization (RR'CNR″; R: alkyl/aryl, R': H/alkyl/aryl and R″: chitosan ring) is significant as it recommends the resultant chitosan-based Schiff bases (CSBs) for the important applications in the fields like biology, catalysis, sensors, water treatment, etc. CSBs are usually synthesized by the Schiff condensation reaction between chitosan's amino groups and carbonyl compounds with the removal of water molecules. In this review, we first introduce the available synthetic approaches for the preparation of CSBs. Then, we discuss the biological applications of CSBs including antimicrobial activity, anticancer activity, drug carrier ability, antioxidant activity and tissue engineering capacity. Successively, the applications of CSBs in other fields such as catalysis, adsorption and sensors are demonstrated.
Collapse
Affiliation(s)
- R Antony
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
| | - T Arun
- Department of Chemistry, Kamaraj College, Thoothukudi 628003, Tamil Nadu, India
| | - S Theodore David Manickam
- Centre for Scientific and Applied Research, PSN College of Engineering and Technology (Autonomous), Tirunelveli 627152, Tamil Nadu, India.
| |
Collapse
|
17
|
Murugaiyan M, Mani SP, Sithique MA. Zinc(ii) centered biologically active novel N,N,O donor tridentate water-soluble hydrazide-based O-carboxymethyl chitosan Schiff base metal complexes: synthesis and characterisation. NEW J CHEM 2019. [DOI: 10.1039/c9nj00670b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, novel eco-friendly and water-soluble chitosan Schiff base derivatives have been designed for potential use in antimicrobial applications.
Collapse
Affiliation(s)
- Manimohan Murugaiyan
- PG & Research Department of Chemistry
- Islamiah College (Autonomous)
- Vaniyambadi – 635 752, Vellore District
- India
| | - S. Pugal Mani
- Department of Analytical Chemistry
- University of Madras
- Chennai – 600 025
- India
| | - Mohamed Aboobucker Sithique
- PG & Research Department of Chemistry
- Islamiah College (Autonomous)
- Vaniyambadi – 635 752, Vellore District
- India
| |
Collapse
|
18
|
Ahsan SM, Thomas M, Reddy KK, Sooraparaju SG, Asthana A, Bhatnagar I. Chitosan as biomaterial in drug delivery and tissue engineering. Int J Biol Macromol 2018; 110:97-109. [DOI: 10.1016/j.ijbiomac.2017.08.140] [Citation(s) in RCA: 302] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/16/2017] [Accepted: 08/27/2017] [Indexed: 12/30/2022]
|
19
|
Berillo D, Cundy A. 3D-macroporous chitosan-based scaffolds with in situ formed Pd and Pt nanoparticles for nitrophenol reduction. Carbohydr Polym 2018; 192:166-175. [PMID: 29691009 DOI: 10.1016/j.carbpol.2018.03.038] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/12/2018] [Accepted: 03/14/2018] [Indexed: 10/17/2022]
Abstract
3D-macroporous chitosan-based scaffolds (cryogels) were produced via growth of metal-polymer coordinated complexes and electrostatic interactions between oppositely charged groups of chitosan and metal ions under subzero temperatures. A mechanism of reduction of noble metal complexes inside the cryogel walls by glutaraldehyde is proposed, which produces discrete and dispersed noble metal nanoparticles. 3D-macroporous scaffolds prepared under different conditions were characterised using TGA, FTIR, nitrogen adsorption, SEM, EDX and TEM, and the distribution of platinum nanoparticles (PtNPs) and palladium nanoparticles (PdNPs) in the material assessed. The catalytic activity of the in situ synthesised PdNPs, at 2.6, 12.5 and 21.0 μg total mass, respectively, was studied utilising a model system of 4-nitrophenol reduction. The kinetics of the reaction under different conditions (temperature, concentration of catalyst) were examined, and a decrease of catalytic activity was not observed over 17 treatment cycles. Increasing the temperature of the catalytic reaction from 10 to 22 and 35 °C by PdNPs supported within the cryogel increased the kinetic rate by 44 and 126%, respectively. Turnover number and turnover frequency of the PdNPs catalysts at room temperature were in the range 0.20-0.53 h-1. The conversion degree of 4-nitrophenol at room temperature reached 98.9% (21.0 μg PdNPs). Significantly less mass of palladium nanoparticles (by 30-40 times) was needed compared to published data to obtain comparable rates of reduction of 4-nitrophenol.
Collapse
Affiliation(s)
- Dmitriy Berillo
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK; Department of Biotechnology, Center for Chemistry and Chemical Engineering, Lund University, P.O. Box 124, 22 100, Lund, Sweden.
| | - Andrew Cundy
- School of Ocean and Earth Science, University of Southampton, National Oceanography Centre (Southampton), UK
| |
Collapse
|
20
|
Xu R, Aotegen B, Zhong Z. Preparation and antibacterial activity of C2-benzaldehyde-C6-aniline double Schiff base derivatives of chitosan. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1320653] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ruibo Xu
- College of Sciences, Inner Mongolia Agricultural University, Huhhot, China
| | - Bayaer Aotegen
- College of Sciences, Inner Mongolia Agricultural University, Huhhot, China
| | - Zhimei Zhong
- College of Sciences, Inner Mongolia Agricultural University, Huhhot, China
| |
Collapse
|
21
|
Shi B, Zheng M, Tao W, Chung R, Jin D, Ghaffari D, Farokhzad OC. Challenges in DNA Delivery and Recent Advances in Multifunctional Polymeric DNA Delivery Systems. Biomacromolecules 2017; 18:2231-2246. [DOI: 10.1021/acs.biomac.7b00803] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Bingyang Shi
- International
Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Meng Zheng
- International
Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, P.R. China
| | - Wei Tao
- Center for
Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Roger Chung
- Faculty
of Medicine and Health Science, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Dayong Jin
- ARC
Centre of Excellence for Nanoscale BioPhotonics (CNBP), Macquarie University, Sydney, New South Wales 2109, Australia
- Institute
for Biomedical Materials and Devices (IBMD), University of Technology Sydney, Sydney, New South Wales, 2007, Australia
| | - Dariush Ghaffari
- Center for
Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Omid C. Farokhzad
- Center for
Nanomedicine and Department of Anesthesiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| |
Collapse
|
22
|
Şen Ö, Çobandede Z, Emanet M, Bayrak ÖF, Çulha M. Boron nitride nanotubes for gene silencing. Biochim Biophys Acta Gen Subj 2017; 1861:2391-2397. [PMID: 28571947 DOI: 10.1016/j.bbagen.2017.05.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 05/20/2017] [Accepted: 05/29/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND Non-viral gene delivery is increasingly investigated as an alternative to viral vectors due to low toxicity and immunogenicity, easy preparation, tissue specificity, and ability to transfer larger sizes of genes. METHODS In this study, boron nitride nanotubes (BNNTs) are functionalized with oligonucleotides (oligo-BNNTs). The morpholinos complementary to the oligonucleotides attached to the BNNTs (morpholino/oligo-BNNTs) are hybridized to silence the luciferase gene. The morpholino/oligo-BNNTs conjugates are administered to luciferase-expressing cells (MDA-MB-231-luc2) and the luciferase activity is monitored. RESULTS The luciferase activity is decreased when MDA-MB-231-luc2 cells were treated with morpholino/oligo-BNNTs. CONCLUSIONS The study suggests that BNNTs can be used as a potential vector to transfect cells. GENERAL SIGNIFICANCE BNNTs are potential new nanocarriers for gene delivery applications.
Collapse
Affiliation(s)
- Özlem Şen
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Zehra Çobandede
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Melis Emanet
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey
| | - Ömer Faruk Bayrak
- Department of Medical Genetics, Yeditepe University Medical School, Istanbul, Turkey; Yeditepe Universitesi Hastanesi Genetik Tani Merkezi, Koftuncu Sokak Acıbadem mahallesi Istek Vakfi 3. Kat 34718 No: 57/1, Kadikoy, Istanbul, Turkey
| | - Mustafa Çulha
- Department of Genetics and Bioengineering, Yeditepe University, Atasehir, Istanbul 34755, Turkey.
| |
Collapse
|
23
|
Achieving high gene delivery performance with caveolae-mediated endocytosis pathway by (l)-arginine/(l)-histidine co-modified cationic gene carriers. Colloids Surf B Biointerfaces 2016; 148:73-84. [DOI: 10.1016/j.colsurfb.2016.08.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 08/02/2016] [Accepted: 08/21/2016] [Indexed: 11/20/2022]
|
24
|
Sheng R, Zhuang X, Wang Z, Cao A, Lin K, Zhu JXX. Cationic Nanoparticles Assembled from Natural-Based Steroid Lipid for Improved Intracellular Transport of siRNA and pDNA. NANOMATERIALS (BASEL, SWITZERLAND) 2016; 6:E69. [PMID: 28335197 PMCID: PMC5302561 DOI: 10.3390/nano6040069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/17/2016] [Accepted: 03/30/2016] [Indexed: 02/07/2023]
Abstract
Developing new functional biomaterials from biocompatible natural-based resources for gene/drug delivery has attracted increasing attention in recent years. In this work, we prepared a series of cationic nanoparticles (Diosarg-DOPE NPs) by assembly of a natural steroid diosgenin-based cationic lipid (Diosarg) with commercially-available helper lipid 1,2-dioleoyl-sn-glycero-3-phosphorethanolamine (DOPE). These cationic Diosarg-DOPE NPs were able to efficiently bind siRNA and plasmid DNA (pDNA) via electrostatic interactions to form stable, nano-sized cationic lipid nanoparticles instead of lamellar vesicles in aqueous solution. The average particle size, zeta potentials and morphologies of the siRNA and pDNA complexes of the Diosarg-DOPE NPs were examined. The in vitro cytotoxicity of NPs depends on the dose and assembly ratio of the Diosarg and DOPE. Notably, the intracellular transportation efficacy of the exogenesis siRNA and pDNA could be greatly improved by using the Diosarg-DOPE NPs as the cargoes in H1299 cell line. The results demonstrated that the self-assembled Diosarg-DOPE NPs could achieve much higher intracellular transport efficiency for siRNA or pDNA than the cationic lipid Diosarg, indicating that the synergetic effect of different functional lipid components may benefit the development of high efficiency nano-scaled gene carriers. Moreover, it could be noted that the traditional "lysosome localization" involved in the intracellular trafficking of the Diosarg and Diosarg-DOPE NPs, indicating the co-assembly of helper lipid DOPE, might not significantly affect the intracellular localization features of the cationic lipids.
Collapse
Affiliation(s)
- Ruilong Sheng
- CAS Key Laboratory for Organic Functional Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.
- Department of Chemistry, Université de Montréal, C.P.6128, Succursale Centre-ville, Montréal, QC H3C3J7, Canada.
| | - Xiaoqing Zhuang
- General Hospital of Ningxia Medical University, Yinchuan 750004, China.
| | - Zhao Wang
- CAS Key Laboratory for Organic Functional Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.
| | - Amin Cao
- CAS Key Laboratory for Organic Functional Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.
| | - Kaili Lin
- School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, 399 Middle Yanchang Road, Shanghai 200072, China.
| | - Julian X X Zhu
- Department of Chemistry, Université de Montréal, C.P.6128, Succursale Centre-ville, Montréal, QC H3C3J7, Canada.
| |
Collapse
|
25
|
Enhanced water-solubility and antibacterial activity of novel chitosan derivatives modified with quaternary phosphonium salt. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 61:79-84. [DOI: 10.1016/j.msec.2015.12.024] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/01/2015] [Accepted: 12/10/2015] [Indexed: 11/18/2022]
|
26
|
Cong Y, Shi B, Lu Y, Wen S, Chung R, Jin D. One-step Conjugation of Glycyrrhetinic Acid to Cationic Polymers for High-performance Gene Delivery to Cultured Liver Cell. Sci Rep 2016; 6:21891. [PMID: 26902258 PMCID: PMC4763221 DOI: 10.1038/srep21891] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 09/24/2015] [Indexed: 12/15/2022] Open
Abstract
Gene therapies represent a promising therapeutic route for liver cancers, but major challenges remain in the design of safe and efficient gene-targeting delivery systems. For example, cationic polymers show good transfection efficiency as gene carriers, but are hindered by cytotoxicity and non-specific targeting. Here we report a versatile method of one-step conjugation of glycyrrhetinic acid (GA) to reduce cytotoxicity and improve the cultured liver cell -targeting capability of cationic polymers. We have explored a series of cationic polymer derivatives by coupling different ratios of GA to polypropylenimine (PPI) dendrimer. These new gene carriers (GA-PPI dendrimer) were systematically characterized by UV-vis,(1)H NMR titration, electron microscopy, zeta potential, dynamic light-scattering, gel electrophoresis, confocal microscopy and flow cytometry. We demonstrate that GA-PPI dendrimers can efficiently load and protect pDNA, via formation of nanostructured GA-PPI/pDNA polyplexes. With optimal GA substitution degree (6.31%), GA-PPI dendrimers deliver higher liver cell transfection efficiency (43.5% vs 22.3%) and lower cytotoxicity (94.3% vs 62.5%, cell viability) than the commercial bench-mark DNA carrier bPEI (25 kDa) with cultured liver model cells (HepG2). There results suggest that our new GA-PPI dendrimer are a promising candidate gene carrier for targeted liver cancer therapy.
Collapse
Affiliation(s)
- Yue Cong
- Institute of Pharmacy, Pharmaceutical College, Henan University, Jin Ming Avenue, Kaifeng, Henan, 475004, China
| | - Bingyang Shi
- College of Life Sciences, Henan University, Jin Ming Avenue, Kaifeng, Henan, 475004, China
- Advanced Cytometry Labs, ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Macquarie University, Sydney, NSW, 2109, Australia
- Faculty of Medicine & Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Yiqing Lu
- Advanced Cytometry Labs, ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Macquarie University, Sydney, NSW, 2109, Australia
| | - Shihui Wen
- Advanced Cytometry Labs, ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Macquarie University, Sydney, NSW, 2109, Australia
| | - Roger Chung
- Faculty of Medicine & Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Dayong Jin
- Advanced Cytometry Labs, ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), Macquarie University, Sydney, NSW, 2109, Australia
| |
Collapse
|
27
|
Sirviö JA, Visanko M, Liimatainen H. Synthesis of imidazolium-crosslinked chitosan aerogel and its prospect as a dye removing adsorbent. RSC Adv 2016. [DOI: 10.1039/c6ra08301c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Debus–Radziszewski imidazole synthesis was used to obtain crosslinked chitosan aerogel with very high adsorption towards anionic dye.
Collapse
Affiliation(s)
- Juho Antti Sirviö
- Fiber and Particle Engineering Research Unit
- University of Oulu
- Finland
| | | | | |
Collapse
|
28
|
Modra K, Dai S, Zhang H, Shi B, Bi J. Polycation-mediated gene delivery: Challenges and considerations for the process of plasmid DNA transfection. Eng Life Sci 2015. [DOI: 10.1002/elsc.201400043] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Karl Modra
- School of Chemical Engineering; The University of Adelaide; Adelaide South Australia Australia
| | - Sheng Dai
- School of Chemical Engineering; The University of Adelaide; Adelaide South Australia Australia
| | - Hu Zhang
- School of Chemical Engineering; The University of Adelaide; Adelaide South Australia Australia
| | - Bingyang Shi
- School of Chemical Engineering; The University of Adelaide; Adelaide South Australia Australia
| | - Jingxiu Bi
- School of Chemical Engineering; The University of Adelaide; Adelaide South Australia Australia
| |
Collapse
|
29
|
Chen H, Cui S, Zhao Y, Zhang C, Zhang S, Peng X. Grafting chitosan with polyethylenimine in an ionic liquid for efficient gene delivery. PLoS One 2015; 10:e0121817. [PMID: 25875475 PMCID: PMC4395340 DOI: 10.1371/journal.pone.0121817] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 02/04/2015] [Indexed: 11/18/2022] Open
Abstract
Modifying chitosan (CS) with polyethylenimine (PEI) grafts is an effective way to improve its gene transfection performance. However, it is still a challenge to conduct the grafting with fine control and high efficiency, particularly for the modification of water-insoluble CS. Herein, a novel method to graft CS with PEI (1.8 kDa, PEI-1.8) was developed by using ionic liquid 1-butyl-3-methyl imidazolium acetate ([BMIM]Ac) as a reaction solvent, water-insoluble CS as a reaction substrate and 1,1-carbonyldiimidazole (CDI) as a linking agent. The grafting reaction was greatly accelerated and the reaction time was largely shortened to 4 h by taking advantages of the good solubility of CS, the enhanced nucleophilicity of amino groups and the preferential stability of the activated complexes in the ionic liquid. The chitosan-graft-polyethylenimine (CS-g-PEI) products were characterized by 1H NMR, FTIR and GPC. PEI-1.8 was quantitatively grafted to CS through urea linkages, and the grafting degree (GD) was conveniently tuned by varying the molar ratios of PEI-1.8 to D-glucosamine units of CS in the range of 9.0 × 10(-3) to 9.0 × 10(-2). Compared with CS, the synthesized CS-g-PEI copolymers showed higher pDNA-binding affinity, which increased with the GD as shown in Agarose gel electrophoresis. The dynamic light scattering (DLS) experiment demonstrated that the CS-g-PEI/pDNA polyplexes had suitable particle sizes and proper ζ-potentials for cell transfection. The CS-g-PEI copolymer with a medium GD of 4.5% conferred the best gene transfection, with the efficiency 44 times of CS and 38 times of PEI-1.8 in HEp-2 cells. The cytotoxicity of CS-g-PEI was tested and found nearly as low as that of CS and much lower than that of PEI.
Collapse
Affiliation(s)
- Huiying Chen
- State Key Laboratory of Fine Chemicals, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, Liaoning, China
- Key Laboratory of Biotechnology and Bioresources Utilization—The State Ethnic Affairs Commission-Ministry of Education, College of Life Science, Dalian Nationalities University, Dalian, Liaoning, China
| | - Shaohui Cui
- Key Laboratory of Biotechnology and Bioresources Utilization—The State Ethnic Affairs Commission-Ministry of Education, College of Life Science, Dalian Nationalities University, Dalian, Liaoning, China
| | - Yinan Zhao
- State Key Laboratory of Fine Chemicals, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, Liaoning, China
- Key Laboratory of Biotechnology and Bioresources Utilization—The State Ethnic Affairs Commission-Ministry of Education, College of Life Science, Dalian Nationalities University, Dalian, Liaoning, China
| | - Chuanmin Zhang
- State Key Laboratory of Fine Chemicals, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, Liaoning, China
| | - Shubiao Zhang
- Key Laboratory of Biotechnology and Bioresources Utilization—The State Ethnic Affairs Commission-Ministry of Education, College of Life Science, Dalian Nationalities University, Dalian, Liaoning, China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, Dalian, Liaoning, China
| |
Collapse
|
30
|
Wang C, Bao X, Ding X, Ding Y, Abbad S, Wang Y, Li M, Su Y, Wang W, Zhou J. Retracted Article: A multifunctional self-dissociative polyethyleneimine derivative coating polymer for enhancing the gene transfection efficiency of DNA/polyethyleneimine polyplexes in vitro and in vivo. Polym Chem 2015. [DOI: 10.1039/c4py01135j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel coating polymer LPHF is developed for the first time to elevate the transfection efficiency of DP binary polyplexes in vitro and in vivo.
Collapse
|
31
|
Guo P, Gu W, Chen Q, Lu H, Han X, Li W, Gao H. Dual functionalized amino poly(glycerol methacrylate) with guanidine and Schiff-base linked imidazole for enhanced gene transfection and minimized cytotoxicity. J Mater Chem B 2015; 3:6911-6918. [DOI: 10.1039/c5tb01291k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Guanidine and Schiff-base linked imidazole dual functionalized poly(glycerol methacrylate) (IGEP) leads to minimized cytotoxicity and better transfection efficacy than PEI25K.
Collapse
Affiliation(s)
- Pan Guo
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin
- China
| | - Wenxing Gu
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin
- China
| | - Qixian Chen
- Department of Chemistry
- Massachusetts Institute of Technology
- Cambridge
- USA
| | - Hongguang Lu
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin
- China
| | - Xiongqi Han
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin
- China
| | - Wei Li
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin
- China
| | - Hui Gao
- School of Chemistry and Chemical Engineering
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion
- Tianjin University of Technology
- Tianjin
- China
| |
Collapse
|
32
|
Cai X, Li Y, Yue D, Yi Q, Li S, Shi D, Gu Z. Reversible PEGylation and Schiff-base linked imidazole modification of polylysine for high-performance gene delivery. J Mater Chem B 2015; 3:1507-1517. [DOI: 10.1039/c4tb01724b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the designed polylysine based catiomer the reversible PEGylation was introduced forin vivocirculation and to augment the cellular internalization, while the Schiff-base linked imidazole to accelerate the endosomal escape and facilitate intracellular DNA unpacking and release.
Collapse
Affiliation(s)
- Xiaojun Cai
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- The Institute for Biomedical Engineering and Nano Science
| | - Yongyong Li
- The Institute for Biomedical Engineering and Nano Science
- Tongji University School of Medicine
- Tongji University
- Shanghai
- China
| | - Dong Yue
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Qiangying Yi
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Shuo Li
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
- School of Chemical Engineering
| | - Donglu Shi
- The Institute for Biomedical Engineering and Nano Science
- Tongji University School of Medicine
- Tongji University
- Shanghai
- China
| | - Zhongwu Gu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| |
Collapse
|
33
|
Zheng X, Zhang T, Song X, Zhang L, Zhang C, Jin S, Xing J, Liang XJ. Structural impact of graft and block copolymers based on poly(N-vinylpyrrolidone) and poly(2-dimethylaminoethyl methacrylate) in gene delivery. J Mater Chem B 2015; 3:4027-4035. [DOI: 10.1039/c4tb01956c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The characteristics of graft and block copolymers based on PVP and PDMAEMA in pDNA compaction, cytotoxicity, transfection efficiency, internalization and intracellular distribution were systematically investigated.
Collapse
Affiliation(s)
- Xiang Zheng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Tingbin Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Xiaoyan Song
- College of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin
- China
| | - Ling Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Chunqiu Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology of China
- Beijing
- China
| | - Shubin Jin
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology of China
- Beijing
- China
| | - Jinfeng Xing
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Xing-Jie Liang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology of China
- Beijing
- China
| |
Collapse
|
34
|
Dai S. Natural Cationic Polymers for Advanced Gene and Drug Delivery. CATIONIC POLYMERS IN REGENERATIVE MEDICINE 2014. [DOI: 10.1039/9781782620105-00557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Gene and drug delivery is becoming more and more important in the treatment of complicated human diseases. Proper gene/drug delivery systems can effectively enhance therapeutic efficiency and minimize various side-effects. To date, a variety of delivery systems have been developed. Different from synthetic materials, natural polymers are abundant in nature, renewable, non-toxic, biocompatible and biodegradable. Owing to the presence of positive charges, natural cationic polymers have found important applications in many biological fields, such as drug/gene delivery and tissue engineering. In gene delivery, natural cationic polymers can condense nucleic acids, protect them from degradation, lower the immunogenicity and improve overall transfection efficiency. In drug delivery, cationic functional groups can alter the amphiphilic properties of the polymers to ensure their suitable applications for delivering hydrophobic or protein drugs. After simple chemical modification, the derivatives of natural cationic polymers show improved performance as functional delivery carriers. In this chapter, details on the chemical modification of natural cationic polymers and their applications in gene/drug delivery is discussed.
Collapse
Affiliation(s)
- Sheng Dai
- School of Chemical Engineering, University of Adelaide Australia
| |
Collapse
|
35
|
Shi B, Zhang H, Qiao SZ, Bi J, Dai S. Intracellular microenvironment-responsive label-free autofluorescent nanogels for traceable gene delivery. Adv Healthc Mater 2014; 3:1839-48. [PMID: 24965262 DOI: 10.1002/adhm.201400187] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Revised: 04/26/2014] [Indexed: 11/09/2022]
Abstract
Gene therapy presents a unique opportunity for the treatment of genetic diseases, but the lack of multifunctional delivery systems has hindered its clinical applications. Here, a new delivery vector, autofluorescent polyethyleneimine (PEI) nanogels, for highly efficient and traceable gene delivery is developed. Different from commercial high-molecular-weight PEI, the cationic nanogels are noncytotoxic and able to be fragmented due to their unique intracellular microenvironment-responsive structures. The biodegradable nanogels can effectively load plasmid DNA (pDNA), and the self-assembled polyplexes can be cleaved after cellular uptake to improve gene transfection efficiency. Most importantly, the nanogels and the nanogel/pDNA polyplexes are autofluorescent. The fluorescence is stable in blood plasma and responsive to the intracellular microenvironment. The breakup of the nanogels or polyplexes leads to the loss of fluorescence, and thus the gene delivery and carrier biodegradation processes can be monitored. The reported multifunctional system demonstrates excellent biocompatibility, high transfection efficiency, responsive biodegradability, controlled gene release, label-free and simultaneous fluorescence tracking, which will provide a new platform for future scientific investigation and practical implications in gene therapy.
Collapse
Affiliation(s)
- Bingyang Shi
- School of Chemical Engineering; The University of Adelaide; Adelaide SA5005 Australia
| | - Hu Zhang
- School of Chemical Engineering; The University of Adelaide; Adelaide SA5005 Australia
| | - Shi Zhang Qiao
- School of Chemical Engineering; The University of Adelaide; Adelaide SA5005 Australia
| | - Jingxiu Bi
- School of Chemical Engineering; The University of Adelaide; Adelaide SA5005 Australia
| | - Sheng Dai
- School of Chemical Engineering; The University of Adelaide; Adelaide SA5005 Australia
| |
Collapse
|
36
|
Ma Y, Chen B, He N, Chen G, Li L, Wu C. Revisiting Complexation between DNA and Polyethylenimine: Does the Disulfide Linkage Play a Critical Role in Promoting Gene Delivery? Macromol Biosci 2014; 14:1807-15. [DOI: 10.1002/mabi.201400253] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 08/17/2014] [Indexed: 01/23/2023]
Affiliation(s)
- Yongzheng Ma
- Department of Chemistry; The Chinese University of Hong Kong; Shatin N. T. Hong Kong
| | - Baizhu Chen
- Department of Chemistry; The Chinese University of Hong Kong; Shatin N. T. Hong Kong
| | - Ning He
- Department of Chemistry; The Chinese University of Hong Kong; Shatin N. T. Hong Kong
| | - Gaojian Chen
- Department of Chemistry; The Chinese University of Hong Kong; Shatin N. T. Hong Kong
| | - Lianwei Li
- The Hefei National Laboratory of Physical Science at Microscale, Department of Chemical Physics; University of Science and Technology of China; Hefei Anhui 230026 China
| | - Chi Wu
- Department of Chemistry; The Chinese University of Hong Kong; Shatin N. T. Hong Kong
- The Hefei National Laboratory of Physical Science at Microscale, Department of Chemical Physics; University of Science and Technology of China; Hefei Anhui 230026 China
| |
Collapse
|
37
|
Wu W, Zhang Q, Wang J, Chen M, Li S, Lin Z, Li J. Tumor-targeted aggregation of pH-sensitive nanocarriers for enhanced retention and rapid intracellular drug release. Polym Chem 2014. [DOI: 10.1039/c4py00575a] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
38
|
Berillo D, Mattiasson B, Kirsebom H. Cryogelation of chitosan using noble-metal ions: in situ formation of nanoparticles. Biomacromolecules 2014; 15:2246-55. [PMID: 24814024 DOI: 10.1021/bm5003834] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One of the purposes of the project was to develop the method of preparation of 3D macroporous hydrogel with a structure of interconnected pores by the use of noncovalent interactions. The combination of chitosan and noble-metal complexes was investigated as cross-linking agents for the preparation of ionic cryogels (ICs). Furthermore, the treatment of the ICs containing gold complex by glutaraldehyde results in spontaneous formation of gold nanoparticles (AuNPs) and chemical cross-linking of the cryogel. The characterization of prepared macroporous materials was carried out by the use of FTIR, SEM, TEM techniques, and texture analyzer. A new strategy for control of size distribution of AuNPs was suggested. The size distribution of obtained AuNPs and their population inside of walls of cryogels was estimated. A method for quantifying unreacted chloroauric acid in the presence of acetic acid was proposed. The possibility of use of prepared cryogels with immobilized AuNPs as a catalytic flow through reactor is shown.
Collapse
Affiliation(s)
- Dmitriy Berillo
- Department of Biotechnology, Lund University , P.O. Box 124, 22 100, Lund, Sweden
| | | | | |
Collapse
|
39
|
Shi B, Zhang H, Bi J, Dai S. Endosomal pH responsive polymers for efficient cancer targeted gene therapy. Colloids Surf B Biointerfaces 2014; 119:55-65. [PMID: 24880229 DOI: 10.1016/j.colsurfb.2014.04.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 03/20/2014] [Accepted: 04/13/2014] [Indexed: 02/08/2023]
Abstract
Treatment of human diseases at gene level is always limited by effective gene delivery vectors. In this study, we designed and developed an endosomal pH sensitive targeted gene delivery system, folic acid functionalized Schiff-base linked imidazole chitosan (FA-SLICS), for cancer therapy. The FA-SLICS is able to self-assemble plasmid DNA (pDNA) into nano-scaled polyplexes under a neutral condition and to release the loaded pDNA in the endosomal microenvironment due to the presence of pH sensitive Schiff-base moieties along chitosan backbones. The FA-SLICS has negligible cytotoxicity to normal cells (CHO), but displays slight toxicity to cancer cells (HeLa and HepG2). In addition, FA-SLICS can selectively and efficiently transfect FR (folate receptor) positive cells (HeLa cells) as a gene carrier. Therefore, the FA-SLICS should be a promising delivery vector in cancer gene therapy based on its cell targeting capability and intracellular microenvironment controlled delivery mechanism.
Collapse
Affiliation(s)
- Bingyang Shi
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, SA, Australia
| | - Hu Zhang
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, SA, Australia
| | - Jingxiu Bi
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, SA, Australia.
| | - Sheng Dai
- School of Chemical Engineering, The University of Adelaide, Adelaide 5005, SA, Australia.
| |
Collapse
|
40
|
Busilacchi A, Gigante A, Mattioli-Belmonte M, Manzotti S, Muzzarelli RAA. Chitosan stabilizes platelet growth factors and modulates stem cell differentiation toward tissue regeneration. Carbohydr Polym 2013; 98:665-76. [PMID: 23987397 DOI: 10.1016/j.carbpol.2013.06.044] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 06/17/2013] [Accepted: 06/19/2013] [Indexed: 12/31/2022]
Abstract
The idea of using chitosan as a functional delivery aid to support simultaneously PRP, stem cells and growth factors (GF) is associated with the intention to use morphogenic biomaterials to modulate the natural healing sequence in bone and other tissues. For example, chitosan-chondroitin sulfate loaded with platelet lysate was included in a poly(D,L-lactate) foam that was then seeded with human adipose-derived stem cells and cultured in vitro under osteogenic stimulus: the platelet lysate provided to the bone tissue the most suitable assortment of GF which induces the osteogenic differentiation of the mesenchymal stem cells. PDGF, FGF, IGF and TGF-β were protagonists in the repair of callus fractures. The release of GF from the composites of chitosan-PRP and either nano-hydroxyapatite or tricalcium phosphate was highly beneficial for enhancing MSC proliferation and differentiation, thus qualifying chitosan as an excellent vehicle. A number of biochemical characteristics of chitosan exert synergism with stem cells in the regeneration of soft tissues.
Collapse
Affiliation(s)
- Alberto Busilacchi
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Via Tronto 10-A, IT-60126 Ancona, Italy
| | | | | | | | | |
Collapse
|