1
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Huang X, Wang H, Xu Q, Ma F, Liu C, Meng X. Synthesis, characterization and SOD activity of bisbenzimidazole-based copper(II) complexes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2
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Structural diversity and luminescent properties of coordination complexes obtained from trivalent lanthanide ions with the ligands: tris((1H-benzo[d]imidazol-2-yl)methyl)amine and 2,6-bis(1H-benzo[d]imidazol-2-yl)pyridine. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213587] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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3
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Berber MR, Elkhenany H, Hafez IH, El-Badawy A, Essawy M, El-Badri N. Efficient tailoring of platinum nanoparticles supported on multiwalled carbon nanotubes for cancer therapy. Nanomedicine (Lond) 2020; 15:793-808. [PMID: 32207376 DOI: 10.2217/nnm-2019-0445] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aim: Therapeutically targeting cancer stem cells (CSCs), which play a role in tumor initiation and relapse, remains challenging. Materials & methods: Novel-formulated platinum nanoparticles (Pt-NPs) supported on polybenzimidazole (PBI)-functionalized polymers and multiwalled carbon nanotubes (MWCNT) were prepared and their effect on CSCs was evaluated. Results: Pt-NPs showed homogenous distribution on the surface of MWCNT/PBI composites, with very narrow particle size. MWCNT/PBI/Pt-NPs resulted in a dramatic decrease in the proliferation rate of CSCs but not bone marrow mesenchymal stem cells (BM-MSCs). Quantitative gene expression analysis revealed that MWCNT/PBI/Pt had a significant inhibitory effect on the epithelial-mesenchymal transition and cell cycle markers of CSCs. Conclusion: MWCNT/PBI/Pt exhibited a specific cytotoxic effect on breast CSCs but not on adult stem cells.
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Affiliation(s)
- Mohamed R Berber
- Center for Nanotechnology (CNT), Zewail City of Science & Technology, 6th October City, Giza, 12578, Egypt.,Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt.,Department of Chemistry, College of Science, Jouf University, Sakaka, 2014, Saudi Arabia
| | - Hoda Elkhenany
- Center of Excellence for Stem Cells & Regenerative Medicine (CESC), Zewail City of Science & Technology, 6th October City, Giza, 12578, Egypt.,Department of Surgery, Faculty of Veterinary Medicine, Alexandria University, Alexandria, 21944, Egypt
| | - Inas H Hafez
- Center for Nanotechnology (CNT), Zewail City of Science & Technology, 6th October City, Giza, 12578, Egypt.,Department of Natural Resources & Agricultural Engineering, Faculty of Agriculture, Damanhour University, Damanhour, 22516, Egypt
| | - Ahmed El-Badawy
- Center of Excellence for Stem Cells & Regenerative Medicine (CESC), Zewail City of Science & Technology, 6th October City, Giza, 12578, Egypt
| | - Mohamed Essawy
- Center of Excellence for Stem Cells & Regenerative Medicine (CESC), Zewail City of Science & Technology, 6th October City, Giza, 12578, Egypt
| | - Nagwa El-Badri
- Center of Excellence for Stem Cells & Regenerative Medicine (CESC), Zewail City of Science & Technology, 6th October City, Giza, 12578, Egypt
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4
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Aazam ES, Zaki M. Synthesis and Characterization of Ni(II)/Zn(II) Metal Complexes Derived from Schiff Base and
Ortho
‐Phenylenediamine:
In vitro
DNA Binding, Molecular Modeling and RBC Hemolysis. ChemistrySelect 2020. [DOI: 10.1002/slct.201903583] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elham S. Aazam
- Department of Chemistry King Abdulaziz University P.O. Box 80203 Jeddah Saudi Arabia
| | - Mehvash Zaki
- Department of Chemistry King Abdulaziz University, P.O. Box 80203 Jeddah Saudi Arabia
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5
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Zhao Z, Zhang J, Zhi S, Song W, Zhao J. Novel binuclear and trinuclear metal (II) complexes: DNA interactions and in vitro anticancer activity through apoptosis. J Inorg Biochem 2019; 197:110696. [DOI: 10.1016/j.jinorgbio.2019.110696] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 04/20/2019] [Accepted: 04/22/2019] [Indexed: 12/20/2022]
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6
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Zhang J, Jia W, Wu J, Tang G, Zhang C. Two mixed-ligand Cd(ii)–organic frameworks with unique topologies: selective luminescence sensing of TNP and Cu2+ ions with recyclable performances. NEW J CHEM 2019. [DOI: 10.1039/c9nj03551f] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Two luminescent Cd(ii)–organic frameworks exhibit unprecedented (4,4,5,5)-c and (4,4,4,6,7)-c topologies, and highly sensitive and selective sensing of 2,4,6-trinitrophenol and Cu2+.
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Affiliation(s)
- Jinfang Zhang
- International Joint Research Center for Photoresponsive Molecules and Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Wen Jia
- International Joint Research Center for Photoresponsive Molecules and Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Junjie Wu
- International Joint Research Center for Photoresponsive Molecules and Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Guodong Tang
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials
- Huaiyin Normal University
- Huaian 223300
- P. R. China
| | - Chi Zhang
- International Joint Research Center for Photoresponsive Molecules and Materials
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
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7
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Hu J, Chen S, Mao R, Liao C, Yang H, Zhao J. Cytotoxicity, dual-targeting apoptosis induction evaluation of multinuclear cu complexes based on pyrazine-benzimidazole derivative. J Inorg Biochem 2018; 186:246-256. [DOI: 10.1016/j.jinorgbio.2018.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 06/21/2018] [Accepted: 06/24/2018] [Indexed: 11/16/2022]
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8
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9
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Su RC, Liu Q, Yi WJ, Zhao ZG. Zn(II)-dipicolylamine-based metallo-lipids as novel non-viral gene vectors. J Biol Inorg Chem 2017; 22:867-879. [PMID: 28508949 DOI: 10.1007/s00775-017-1465-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 04/26/2017] [Indexed: 12/11/2022]
Abstract
In this study, a series of Zn(II)-dipicolylamine (Zn-DPA) based cationic lipids bearing different hydrophobic tails (long chains, α-tocopherol, cholesterol or diosgenin) were synthesized. Structure-activity relationship (SAR) of these lipids was studied in detail by investigating the effects of several structural aspects including the type of hydrophobic tails, the chain length and saturation degree. In addition, several assays were used to study their interactions with plasmid DNA, and results reveal that these lipids could condense DNA into nanosized particles with appropriate size and zeta-potentials. MTT-based cell viability assays showed that lipoplexes 5 had low cytotoxicity. The in vitro gene transfection studies showed the hydrophobic tails clearly affected the TE, and hexadecanol-containing lipid 5b gives the best TE, which was 2.2 times higher than bPEI 25k in the presence of 10% serum. The results not only demonstrate that these lipids might be promising non-viral gene vectors, but also afford us clues for further optimization of lipidic gene delivery materials.
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Affiliation(s)
- Rong-Chuan Su
- College of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu, 610041, People's Republic of China
| | - Qiang Liu
- College of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu, 610041, People's Republic of China.
| | - Wen-Jing Yi
- College of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu, 610041, People's Republic of China
| | - Zhi-Gang Zhao
- College of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu, 610041, People's Republic of China.
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10
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Bhat SS, Revankar VK, Pinjari RV, S N, Bogar C, Bhat K, Kawade VA. Efficient DNA condensation by ruthenium(ii) polypyridyl complexes containing triptycenyl functionalized 1,10-phenanthroline. NEW J CHEM 2017. [DOI: 10.1039/c7nj00738h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A series of luminescent ruthenium(ii) polypyridyl complexes containing an extended aromatic moiety derived from triptycene and 1,10-phenanthroline were synthesized and their photophysical, theoretical, and biological properties were investigated.
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Affiliation(s)
- Satish S. Bhat
- Department of Chemistry
- Karnatak University
- Dharwad-580003
- India
| | | | - Rahul V. Pinjari
- School of Chemical Science
- Swami Raman and Teerth Marathwada University
- Nanded-431606
- India
| | - Naveen S
- Institution of Excellence
- Vijnana Bhavana
- University of Mysore
- Mysuru 570006
- India
| | - Chetana Bogar
- Department of Microbiology
- Marathamandal Dental College and Research Centre
- Belgaum
- India
| | - Kishor Bhat
- Department of Microbiology
- Marathamandal Dental College and Research Centre
- Belgaum
- India
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11
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Rane LB, Kate AN, Ramteke SN, Shravage BV, Kulkarni PP, Kumbhar AA. Fluorescent zinc(ii) complexes for gene delivery and simultaneous monitoring of protein expression. Dalton Trans 2016; 45:16984-16996. [PMID: 27711702 DOI: 10.1039/c6dt02871c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Two new zinc(ii) complexes, [Zn(l-His)(NIP)]+(1) and [Zn(acac)2(NIP)](2) (where NIP is 2-(naphthalen-1-yl)-1H-imidazo[4,5-f][1,10]phenanthroline, acac = acetyl acetone), have been synthesized and characterized by elemental analysis, UV-vis, fluorescence, IR, 1H NMR and electron spray ionization mass spectroscopies. Gel retardation assay, atomic force microscopy and dynamic light scattering studies show that 1 and 2 can induce the condensation of circular plasmid pBR322 DNA into nanometer size particles under ambient conditions. Treatment of 2 with 5 mM EDTA restored 30% of the supercoiled form of DNA, revealing partial reversibility of DNA condensation. The in vitro transfection experiment demonstrates that the complexes can be used to deliver pCMV-tdTomato-N1 plasmid which expresses red fluorescent protein. The confocal studies show that the fluorescent nature of complexes is advantageous for visualizing the intracellular delivery of metal complexes as well as transfection efficiency using two distinct emission windows.
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Affiliation(s)
- Lalita B Rane
- Department of Chemistry, Savitribai Phule Pune University, Pune - 411007, India.
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12
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Zhang Z, Zhao Y, Meng X, Zhao D, Zhang D, Wang L, Liu C. A Simple Zn2+ Complex-Based Composite System for Efficient Gene Delivery. PLoS One 2016; 11:e0158766. [PMID: 27433798 PMCID: PMC4951035 DOI: 10.1371/journal.pone.0158766] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 06/21/2016] [Indexed: 11/19/2022] Open
Abstract
Metal complexes might become a new type of promising gene delivery systems because of their low cytotoxicity, structural diversity, controllable aqua- and lipo-solubility, and appropriate density and distribution of positive charges. In this study, Zn2+ complexes (1-10) formed with a series of ligands contained benzimidazole(bzim)were prepared and characterized. They were observed to have different affinities for DNA, dependent on their numbers of positive charges, bzim groups, and coordination structures around Zn2+. The binding induced DNA to condensate into spherical nanoparticles with ~ 50 nm in diameter. The cell transfection efficiency of the DNA nanoparticles was poor, although they were low toxic. The sequential addition of the cell-penetrating peptide (CPP) TAT(48-60) and polyethylene glycol (PEG) resulted in the large DNA condensates (~ 100 nm in diameter) and the increased cellular uptake. The clathrin-mediated endocytosis was found to be a key cellular uptake pathway of the nanoparticles formed with or without TAT(48-60) or/and PEG. The DNA nanoparticles with TAT(48-60) and PEG was found to have the cell transfection efficiency up to 20% of the commercial carrier Lipofect. These results indicated that a simple Zn2+-bzim complex-based composite system can be developed for efficient and low toxic gene delivery through the combination with PEG and CPPs such as TAT.
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Affiliation(s)
- Zhe Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Yanjie Zhao
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Xianggao Meng
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Dan Zhao
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Dan Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan, 430079, China
| | - Li Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan, 430079, China
- * E-mail: (CL); (LW)
| | - Changlin Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan, 430079, China
- * E-mail: (CL); (LW)
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13
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Czekański Ł, Hoffmann SK, Barczyński P, Gąsowska A, Bregier-Jarzębowska R, Zalewska A, Goslar J, Ratajczak-Sitarz M, Katrusiak A. Crystal structure and physical properties of 1-methyl-3-(carboxymethyl)benzimidazolium betaine·CuBr2 in crystal and water solution. NEW J CHEM 2016. [DOI: 10.1039/c6nj03192g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Planar CuO2Br2 complex exists in a triclinic unit cell. Single crystal EPR and MO-theory give electron spin density delocalization parameters.
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Affiliation(s)
- Łukasz Czekański
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
| | | | - Piotr Barczyński
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
| | - Anna Gąsowska
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
| | | | - Alina Zalewska
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
| | - Janina Goslar
- Institute of Molecular Physics
- Polish Academy of Sciences
- 60-179 Poznań
- Poland
| | | | - Andrzej Katrusiak
- Faculty of Chemistry
- Adam Mickiewicz University in Poznań
- 61-614 Poznań
- Poland
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14
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Formation of anti- versus syn-dinuclear CuII complexes from bis-glycinamide ligands. Synergistic roles of a His/His dyad and supporting-ligand backbones in CuII binding. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Croitor L, Grabco DZ, Coropceanu EB, Pyrtsac C, Fonari MS. Structure and mechanical features of one-dimensional coordination polymer catena-{(μ2-adipato-O,O′)-bis(pyridine-4-aldoxime)-copper(ii)}. CrystEngComm 2015. [DOI: 10.1039/c4ce02444c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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17
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Bao FF, Xu XX, Zhou W, Pang CY, Li Z, Gu ZG. Enantioselective DNA condensation induced by heptameric lanthanum helical supramolecular enantiomers. J Inorg Biochem 2014; 138:73-80. [DOI: 10.1016/j.jinorgbio.2014.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 04/30/2014] [Accepted: 05/01/2014] [Indexed: 10/25/2022]
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18
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Connell TU, Schieber C, Silvestri IP, White JM, Williams SJ, Donnelly PS. Copper and Silver Complexes of Tris(triazole)amine and Tris(benzimidazole)amine Ligands: Evidence that Catalysis of an Azide–Alkyne Cycloaddition (“Click”) Reaction by a Silver Tris(triazole)amine Complex Arises from Copper Impurities. Inorg Chem 2014; 53:6503-11. [DOI: 10.1021/ic5008999] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Timothy U. Connell
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Christine Schieber
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Ilaria Proietti Silvestri
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Jonathan M. White
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Spencer J. Williams
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
| | - Paul S. Donnelly
- School of Chemistry and Bio21
Molecular Science and Biotechnology Institute, University of Melbourne, Parkville 3010, Victoria, Australia
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19
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Lu Z, Lu J, Huang X, Liu CM, Fan C, Nie Y, Sun G. Structure and magnetic properties of a chiral dinuclear copper(II) complex assembled from a bpca− anion. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Synthesis and characterization of Cu(II)-based anticancer chemotherapeutic agent targeting topoisomerase Iα: In vitro DNA binding, pBR322 cleavage, molecular docking studies and cytotoxicity against human cancer cell lines. Eur J Med Chem 2014; 74:509-23. [PMID: 24508781 DOI: 10.1016/j.ejmech.2013.12.046] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/23/2013] [Accepted: 12/26/2013] [Indexed: 02/07/2023]
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21
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Cong L, Qin X, Sun W, Wang Y, Ding S, Liu Z. A series of [NaMnIII3MnII] clusters constructed using a multidentate Schiff-base ligand and decorated with different auxiliary ligands. NEW J CHEM 2014. [DOI: 10.1039/c3nj00742a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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22
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Yan H, Yue P, Li Z, Guo Z, Lu Z. Syntheses of bifunctional molecules containing [12]aneN3 and carbazol moieties as effective DNA condensation agents. Sci China Chem 2013. [DOI: 10.1007/s11426-013-5031-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Huang X, Dong X, Li X, Meng X, Zhang D, Liu C. Metal–polybenzimidazole complexes as a nonviral gene carrier: Effects of the DNA affinity on gene delivery. J Inorg Biochem 2013; 129:102-11. [DOI: 10.1016/j.jinorgbio.2013.09.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 09/06/2013] [Accepted: 09/10/2013] [Indexed: 10/26/2022]
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24
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Synthesis, characterization and crystal structure determination of mononuclear and dinuclear copper(II) carboxylates: [Cu(Hdpa)2(en)] and [{Cu2(μ-na)4(CH3OH)2}·2CH3OH]. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-013-0305-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Li C, Ma C, Xu P, Gao Y, Zhang J, Qiao R, Zhao Y. Effective and reversible DNA condensation induced by a simple cyclic/rigid polyamine containing carbonyl moiety. J Phys Chem B 2013; 117:7857-67. [PMID: 23734659 DOI: 10.1021/jp312766u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The transfection of DNA in gene therapy largely depends on the possibility of obtaining its condensation. The details of nanoparticle formation are essential for functioning, as mediated by the diverse elements containing molecular structure, ionic strength in mediums, and condensing motivator. Here, we report two kinds of DNA condensing agents based on simple cyclic/rigid polyamine molecules, having evaluated their structural effect on nanoparticle formation. The reversible condensation-dissociation process was achieved by ion-switching, attributing to a possible condensing mechanism-competitive building of external hydrogen bonds. Using poly[(dA-dT)2] and poly[(dG-dC)2] as substrates, respectively, circular dichroism (CD) signals clearly presented dissimilar interactions between polyamines and both rich sequences, implying potential preference for G-C sequence. The presence of divalent ion Zn(2+) as an efficient motivator accelerated the achievement of DNA condensation, and an accessible schematic model was depicted to explain the promotion in detail. In addition, by comparison with the behaviors of linear polyamines, differences between condensation and aggregation were explicitly elucidated in aspects of morphology and surface charges, as well as induced condition. The present work may have the potential to reveal the precise mechanism of DNA nanoparticle formation and, in particular, be applied to gene delivery as an efficient nonviral vector.
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Affiliation(s)
- Chao Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, PR China
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26
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Liu YY, Liu B, Yang J, Ma JF. Five new coordination polymers constructed from 1,4-bis(1H-imidazol-1-yl)butane and different carboxylates: Syntheses, structures and photoluminescence. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.03.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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The effect of a nuclear localization sequence on transfection efficacy of genes delivered by cobalt(II)–polybenzimidazole complexes. Biomaterials 2012; 33:7884-94. [DOI: 10.1016/j.biomaterials.2012.07.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Accepted: 07/08/2012] [Indexed: 01/08/2023]
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28
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Bhat SS, Kumbhar AS, Kumbhar AA, Khan A. Efficient DNA Condensation Induced by Ruthenium(II) Complexes of a Bipyridine-Functionalized Molecular Clip Ligand. Chemistry 2012; 18:16383-92. [DOI: 10.1002/chem.201200407] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Revised: 06/28/2012] [Indexed: 12/16/2022]
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29
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