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Chen D, Liu X, Lu X, Tian J. Nanoparticle drug delivery systems for synergistic delivery of tumor therapy. Front Pharmacol 2023; 14:1111991. [PMID: 36874010 PMCID: PMC9978018 DOI: 10.3389/fphar.2023.1111991] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/02/2023] [Indexed: 02/18/2023] Open
Abstract
Nanoparticle drug delivery systems have proved anti-tumor effects; however, they are not widely used in tumor therapy due to insufficient ability to target specific sites, multidrug resistance to anti-tumor drugs, and the high toxicity of the drugs. With the development of RNAi technology, nucleic acids have been delivered to target sites to replace or correct defective genes or knock down specific genes. Also, synergistic therapeutic effects can be achieved for combined drug delivery, which is more effective for overcoming multidrug resistance of cancer cells. These combination therapies achieve better therapeutic effects than delivering nucleic acids or chemotherapeutic drugs alone, so the scope of combined drug delivery has also been expanded to three aspects: drug-drug, drug-gene, and gene-gene. This review summarizes the recent advances of nanocarriers to co-delivery agents, including i) the characterization and preparation of nanocarriers, such as lipid-based nanocarriers, polymer nanocarriers, and inorganic delivery carriers; ii) the advantages and disadvantages of synergistic delivery approaches; iii) the effectual delivery cases that are applied in the synergistic delivery systems; and iv) future perspectives in the design of nanoparticle drug delivery systems to co-deliver therapeutic agents.
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Affiliation(s)
- Daoyuan Chen
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, China
| | - Xuecun Liu
- Shandong Boan Biotechnology Co., Ltd., Yantai, China
| | - Xiaoyan Lu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, China
| | - Jingwei Tian
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, China
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Phosphorylated PAMAM dendrimers: an analog of dentin non-collagenous proteins, enhancing the osteo/odontogenic differentiation of dental pulp stem cells. Clin Oral Investig 2021; 26:1737-1751. [PMID: 34515858 DOI: 10.1007/s00784-021-04149-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 08/14/2021] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Polyamidoamine (PAMAM) dendrimers have well-defined structures, with monodispersity and easily modified surface groups, and they have broad applications in biomedicine. In this study, phosphorylated PAMAM (P-PAMAM) dendrimers were synthesized based on the idea of mimicking the phosphorylated proteins of dentin non-collagenous proteins (DNCP). Then, proliferation and osteo/odontogenic differentiation effects of P-PAMAM on dental pulp stem cells (DPSCs) were investigated and were compared with DNCP. MATERIALS AND METHODS P-PAMAM was synthesized via the Mannich-type reaction. DNCP were extracted directly from human dentin with ethylenediaminetetraacetic acid (EDTA) solution. Then, the conditioned medium of P-PAMAM and DNCP were prepared respectively and applied to DPSCs. Proliferation of P-PAMAM was investigated with CCK-8, flow cytometry, and EdU test. Osteo/odontogenic differentiation of P-PAMAM was analyzed using alkaline phosphatase activity and staining, RT-PCR, western blot, alizarin red staining, and immunofluorescence staining. RESULTS Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance revealed that PAMAM were successfully phosphorylated. Western blot verified that the extracted DNCP contained dentin-related proteins DSPP, OPN, and BMP2. In cell proliferation, there was no apparent difference between P-PAMAM, DNCP, and Control groups (P > 0.05). P-PAMAM and DNCP upregulated related genes and proteins expression (DSPP/DSPP, COL-1/COL-1, ALP/ALP, RUNX2/RUNX2, OSX/OSX, OCN/OCN) and matrix mineralization. Still, the potential was lower than that of DNCP (P < 0.05). CONCLUSIONS P-PAMAM dendrimers, as a biomimetic analog of DNCP, promote osteo/odontogenic differentiation of DPSCs without influencing their proliferation at a low concentration. CLINICAL RELEVANCE This preliminary study about P-PAMAM dendrimers is expected to provide a more convenient bioactive macromolecular material for the regeneration of the pulp-dentin complex.
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Liu M, Guo Z, Liu J, Ren H, Guo J, Liao S, Zhang Z. Preparing PAMAM- NK4 nano complexes and examining their in vitro growth suppression effects in breast cancer. Gland Surg 2021; 10:2695-2704. [PMID: 34733719 PMCID: PMC8514297 DOI: 10.21037/gs-21-443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/17/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND This study sought to examine the suppression of the NK4 (which is a fragment that originates from the trypsin digestion of the hepatocyte growth factor) gene as mediated by new nano material polyamidoamine (PAMAM) dendrimers in the growth of breast cancer cells MDA-MB-231 and MCF-7, and the therapeutic effects in a nude mice model of transplanted tumor cell MDA-MB-231. METHODS We built PAMAM-NK4 nano particles and detected the in vitro transfection rate. Nano complexes and blank plasmid PAMAM dendrimers were transfected to MDA-MB-231 and MCF-7 cells, respectively. The western-blotting method, MTT experiment method, and bead method were used to detect the effects of the nano complexes on NK4 protein expression, cell proliferation, and cell apoptosis. The nude mice model of transplanted tumor cell MDA-MB-231 comprised 40 nude female mice who were subject to injections. The mice were randomly divided into four groups, comprising 10 mice per group. The control, blank plasmid and treatment groups were subcutaneously injected with 0.2 mL of 0.9% NaCl (Sodium chloride) solution, 0.2 mL of plasmid solution (including 100 µg PAMAM pcDNA3.1(-) blank plasmid nano complexes) and 0.2 mL of plasmid solution (including PAMAM-NK4 100 µg) beside the tumor inoculation spot, respectively. The positive control group was intraperitoneally injected with 0.2 mL of doxorubicin solution, including 100 µg doxorubicin. Western blotting was used to detect the NK4 protein expression of the transplanted tumor tissues of the various groups. RESULTS NK4 protein was successfully expressed in MDA-MB-231 and MCF-7 cells transfected with PAMAM-NK4 nano particles, and cell proliferation was suppressed and cell apoptosis was induced. The tumor volumes and masses of the treatment and positive control groups were obviously smaller than those of the control group. The differences were statistically significant (P<0.05). The treatment group had an obviously higher mean value of NK4 protein expression than the control group. The differences were statistically significant (P<0.05). CONCLUSIONS PAMAM-NK4 nano complexes suppress the growth of the breast cancer cells MDA-MB-231 and MCF-7, and had a treatment effect on this tumor nude mice model of breast cancer cells.
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Affiliation(s)
- Minfeng Liu
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhaoze Guo
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiangqin Liu
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hui Ren
- Transfusion Medicine, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Jingyun Guo
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shijun Liao
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zicheng Zhang
- Breast Center, Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Sharma P, Kumar A, Dey AD, Behl T, Chadha S. Stem cells and growth factors-based delivery approaches for chronic wound repair and regeneration: A promise to heal from within. Life Sci 2021; 268:118932. [PMID: 33400933 DOI: 10.1016/j.lfs.2020.118932] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/03/2020] [Accepted: 12/12/2020] [Indexed: 02/06/2023]
Abstract
The sophisticated chain of cellular and molecular episodes during wound healing includes cell migration, cell proliferation, deposition of extracellular matrix, and remodelling and are onerous to replicate. Encapsulation of growth factors (GFs) and Stem cell-based (SCs) has been proclaimed to accelerate healing by transforming every phase associated with wound healing to enhance skin regeneration. Therapeutic application of mesenchymal stem cells (MSCs), embryonic stem cells (ESCs) and induced pluripotent stem cells (PSCs) provides aid in wound fixing, tissue integrity restoration and function of impaired tissue. Several scientific studies have established the essential role GFs in wound healing and their reduced degree in the chronic wound. The overall limitation includes half-life, unfriendly microhabitat abundant with protease, and inadequate delivery approaches results in decreased delivery of effective amounts in a suitable time-based fashion. Advancements in the area of reformative medicine as well as tissue engineering have offered techniques competent of dispensing SCs and GFs in site-oriented manner. The progress in nanotechnology-based approaches attracts researcher to study and evaluate the potential of this SCs and GFs based therapy in chronic wounds. These techniques embrace the polymeric regime viz., nano-formulations, hydrogels, liposomes, scaffolds, nanofibers, metallic nanoparticles, lipid-based nanoparticles and dendrimers that have established better retort through targeting tissues when GFs and SCs are transported via these humans made devices. Assumed the current problems, improvements in delivery approaches and difficulties offered by chronic wounds, we hope to show that encapsulation of SCs and GFs loaded nanoformulations therapies is the rational next step in improving wound care.
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Affiliation(s)
- Preety Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Arun Kumar
- Chitkara College of Pharmacy, Chitkara University, Punjab, India.
| | - Asmita Deka Dey
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Swati Chadha
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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Begum AA, Toth I, Hussein WM, Moyle PM. Advances in Targeted Gene Delivery. Curr Drug Deliv 2020; 16:588-608. [PMID: 31142250 DOI: 10.2174/1567201816666190529072914] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/31/2019] [Accepted: 04/03/2019] [Indexed: 02/07/2023]
Abstract
Gene therapy has the potential to treat both acquired and inherited genetic diseases. Generally, two types of gene delivery vectors are used - viral vectors and non-viral vectors. Non-viral gene delivery systems have attracted significant interest (e.g. 115 gene therapies approved for clinical trials in 2018; clinicaltrials.gov) due to their lower toxicity, lack of immunogenicity and ease of production compared to viral vectors. To achieve the goal of maximal therapeutic efficacy with minimal adverse effects, the cell-specific targeting of non-viral gene delivery systems has attracted research interest. Targeting through cell surface receptors; the enhanced permeability and retention effect, or pH differences are potential means to target genes to specific organs, tissues, or cells. As for targeting moieties, receptorspecific ligand peptides, antibodies, aptamers and affibodies have been incorporated into synthetic nonviral gene delivery vectors to fulfill the requirement of active targeting. This review provides an overview of different potential targets and targeting moieties to target specific gene delivery systems.
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Affiliation(s)
- Anjuman A Begum
- School of Chemistry and Molecular Biosciences (SCMB), The University of Queensland, St Lucia 4072, Australia.,School of Pharmacy, The University of Queensland, Woolloongabba, 4102, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences (SCMB), The University of Queensland, St Lucia 4072, Australia.,School of Pharmacy, The University of Queensland, Woolloongabba, 4102, Australia.,Institute for Molecular Bioscience (IMB), The University of Queensland, St Lucia, St Lucia 4072, Australia
| | - Waleed M Hussein
- School of Chemistry and Molecular Biosciences (SCMB), The University of Queensland, St Lucia 4072, Australia
| | - Peter M Moyle
- School of Pharmacy, The University of Queensland, Woolloongabba, 4102, Australia
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Oryan A, Alemzadeh E, Zarei M. Basic concepts, current evidence, and future potential for gene therapy in managing cutaneous wounds. Biotechnol Lett 2019; 41:889-898. [PMID: 31256273 DOI: 10.1007/s10529-019-02701-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 06/19/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Several studies have investigated the role of gene therapy in the healing process. The aim of this review is to explain the gene delivery systems in wound area. RESULTS Ninety-two studies were included and comprehensively overviewed. We described the importance of viral vectors such as adenoviruses, adeno-associated viruses, and retroviruses, and conventional non-viral vectors such as naked DNA injections, liposomes, gene gun, electroporation, and nanoparticles in achieving high-level expression of genes. Application of viral transfection, liposomal vectors, and electroporation were the main gene delivery systems. Genes encoding for growth factors or cytokines have been shown to result in a better wound closure in comparison to application of the synthetic growth factors. In addition, a combination of stem cell and gene therapy has been found an effective approach in regeneration of cutaneous wounds. CONCLUSIONS This article gives an overview of the methods and investigations applied on gene therapy in wound healing. However, clinical investigations need to be undertaken to gain a better understanding of gene delivery technologies and their roles in stimulating wound repair.
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Affiliation(s)
- Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Esmat Alemzadeh
- Department of Medical Biotechnology, Faculty of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohammad Zarei
- Department of Agricultural Biotechnology, Faculty of Engineering and Technology, Imam Khomeini International University, Qazvin, Iran
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Fernández Freire P, Peropadre A, Rosal R, Pérez Martín JM, Hazen MJ. Toxicological assessment of third generation (G3) poly (amidoamine) dendrimers using the Allium cepa test. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 563-564:899-903. [PMID: 26345251 DOI: 10.1016/j.scitotenv.2015.07.137] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 07/24/2015] [Accepted: 07/28/2015] [Indexed: 06/05/2023]
Affiliation(s)
- Paloma Fernández Freire
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Ana Peropadre
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Roberto Rosal
- Departamento de Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, E-28871 Madrid, Spain; Advanced Study Institute of Madrid, IMDEA-Agua, Parque Científico Tecnológico, Alcalá de Henares, E-28805 Madrid, Spain
| | - José Manuel Pérez Martín
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - María José Hazen
- Departamento de Biología, Facultad de Ciencias, Universidad Autónoma de Madrid, E-28049 Madrid, Spain.
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Lee YS, Choi JW, Oh JE, Yun CO, Kim SW. Human relaxin gene expression delivered by bioreducible dendrimer polymer for post-infarct cardiac remodeling in rats. Biomaterials 2016; 97:164-75. [PMID: 27174688 PMCID: PMC5448559 DOI: 10.1016/j.biomaterials.2016.04.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/12/2016] [Accepted: 04/21/2016] [Indexed: 02/06/2023]
Abstract
In consensus, myocardial infarction (MI) is defined as irreversible cell death secondary to prolonged ischemia in heart. The aim of our study was to evaluate the therapeutic potential of anti-fibrotic human Relaxin-expressing plasmid DNA with hypoxia response element (HRE) 12 copies (HR1) delivered by a dendrimer type PAM-ABP polymer G0 (HR1/G0) after MI on functional, hemodynamic, geometric, and cardiac extracellular matrix (ECM) remodeling in rats. HR1/G0 demonstrated significantly improved LV systolic function, hemodynamic parameters, and geometry on 1 wk and 4 wks after MI in rats, compared with I/R group. The resolution of regional wall motional abnormalities and the increased blood flow of infarct-related coronary artery supported functional improvements of HR1/G0. Furthermore, HR1/G0 polyplex showed favorable post-infarct cardiac ECM remodeling reflected on the favorable cardiac ECM compositions. Overall, this is the first study, which presented an advanced platform for the gene therapy that reverses adverse cardiac remodeling after MI with a HR1 gene delivered by a bioreducible dendrimer polymer in the cardiac ECM.
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Affiliation(s)
- Young Sook Lee
- Center for Controlled Chemical Delivery, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84112, USA
| | - Joung-Woo Choi
- Center for Controlled Chemical Delivery, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84112, USA
| | - Jung-Eun Oh
- Department of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
| | - Chae-Ok Yun
- Department of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea.
| | - Sung Wan Kim
- Center for Controlled Chemical Delivery, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, 84112, USA; Department of Bioengineering, College of Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 133-791, Republic of Korea
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Kamaruzaman KA, Moyle PM, Toth I. Peptide-Based Multicomponent Oligonucleotide Delivery Systems: Optimisation of Poly-l-lysine Dendrons for Plasmid DNA Delivery. Int J Pept Res Ther 2016. [DOI: 10.1007/s10989-016-9545-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Santos-Carballal B, Aaldering LJ, Ritzefeld M, Pereira S, Sewald N, Moerschbacher BM, Götte M, Goycoolea FM. Physicochemical and biological characterization of chitosan-microRNA nanocomplexes for gene delivery to MCF-7 breast cancer cells. Sci Rep 2015; 5:13567. [PMID: 26324407 PMCID: PMC4555168 DOI: 10.1038/srep13567] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 07/30/2015] [Indexed: 11/09/2022] Open
Abstract
Cancer gene therapy requires the design of non-viral vectors that carry genetic material and selectively deliver it with minimal toxicity. Non-viral vectors based on cationic natural polymers can form electrostatic complexes with negatively-charged polynucleotides such as microRNAs (miRNAs). Here we investigated the physicochemical/biophysical properties of chitosan-hsa-miRNA-145 (CS-miRNA) nanocomplexes and the biological responses of MCF-7 breast cancer cells cultured in vitro. Self-assembled CS-miRNA nanocomplexes were produced with a range of (+/-) charge ratios (from 0.6 to 8) using chitosans with various degrees of acetylation and molecular weight. The Z-average particle diameter of the complexes was <200 nm. The surface charge increased with increasing amount of chitosan. We observed that chitosan induces the base-stacking of miRNA in a concentration dependent manner. Surface plasmon resonance spectroscopy shows that complexes formed by low degree of acetylation chitosans are highly stable, regardless of the molecular weight. We found no evidence that these complexes were cytotoxic towards MCF-7 cells. Furthermore, CS-miRNA nanocomplexes with degree of acetylation 12% and 29% were biologically active, showing successful downregulation of target mRNA expression in MCF-7 cells. Our data, therefore, shows that CS-miRNA complexes offer a promising non-viral platform for breast cancer gene therapy.
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Affiliation(s)
- B Santos-Carballal
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossgarten 3, D-48149 Münster, Germany
| | - L J Aaldering
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossgarten 3, D-48149 Münster, Germany
| | - M Ritzefeld
- Organic and Bioorganic Chemistry, Bielefeld University, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - S Pereira
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossgarten 3, D-48149 Münster, Germany
| | - N Sewald
- Organic and Bioorganic Chemistry, Bielefeld University, Universitätsstrasse 25, D-33615 Bielefeld, Germany
| | - B M Moerschbacher
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossgarten 3, D-48149 Münster, Germany
| | - M Götte
- Department of Gynecology and Obstetrics, University of Münster, Albert-Schweitzer-Campus 1, D-48149 Münster, Germany
| | - F M Goycoolea
- Institute of Plant Biology and Biotechnology (IBBP), University of Münster, Schlossgarten 3, D-48149 Münster, Germany
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Ayatollahi S, Hashemi M, Kazemi Oskuee R, Salmasi Z, Mokhtarzadeh A, Alibolandi M, Abnous K, Ramezani M. Synthesis of efficient gene delivery systems by grafting pegylated alkylcarboxylate chains to PAMAM dendrimers: Evaluation of transfection efficiency and cytotoxicity in cancerous and mesenchymal stem cells. J Biomater Appl 2015; 30:632-48. [DOI: 10.1177/0885328215599667] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The applications of polyamidoamine (PAMAM) dendrimers have attracted much attention in biomedicine specially non-viral gene delivery because of thier unique characteristics including hyperbranching, multivalency, and well-defined uniform globular three-dimensional structures. In the current study, in order to enhance the transfection efficiency and reduce the cytotoxicity of PAMAMs, bromoalkylcarboxylates with different chain length (2-bromoacetic, 6-bromohexanoic, 10-bromodecanoic and 16-bromohexadecanoic acids) were covalently conjugated with 10% and 30% of primary amines of generation 4 and 5 (G4 and G5) of PAMAM dendrimers to increase the hydrophobicity of the carrier. At the next stage, the alkylcarboxylate-PAMAMs were pegylaed to further modify the PAMAM structures for biological applications. Obtained results demonstrated that the prepared PAMAM derivatives had particle size around 140 nm with net-positive surface charge. None of the prepared PAMAM-based non-viral vactors exhibited significant hemolytic activity and also cytotoxicity. Meanwhile decahexanoate–PAMAM G4 [G4(16C-10%)] and decanoate–PAMAM G4 conjugated to polyethylene glycol (PEG) (G4[(10C-30%)(10C-PEG)]) showed highest transfection efficiency in murine neuroblastoma (Neuro-2a) cell line, interestingly only the latter had improved transfection efficiency in mesenchymal stem cells (MSCs). This study proved the potential utility of alkylcarboxylate-grafted PAMAM dendrimers (G4 and G5) with or without PEG modification for efficient gene transfer into cancerous cells as well as MSCs.
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Affiliation(s)
- Sara Ayatollahi
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Hashemi
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Kazemi Oskuee
- Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Salmasi
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahad Mokhtarzadeh
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Mona Alibolandi
- Biotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Arteta MY, Berti D, Montis C, Campbell RA, Clifton LA, Skoda MWA, Soltwedel O, Baglioni P, Nylander T. Molecular recognition of nucleic acids by nucleolipid/dendrimer surface complexes. SOFT MATTER 2014; 10:8401-8405. [PMID: 25246334 DOI: 10.1039/c4sm01733a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We show for the first time that 1,2-dilauroyl-sn-glycero-3-phosphatidyladenosine nucleolipid surface complexes with cationic poly(amidoamine) dendrimers can be used to selectively bind DNA including oligonucleotides. This molecular recognition has high potential for applications involving biomedical and bioanalytic devices as well as drug delivery systems based on nucleic acids.
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Affiliation(s)
- Marianna Yanez Arteta
- Physical Chemistry, Department of Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden.
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Liu X, Ma D, Tang H, Tan L, Xie Q, Zhang Y, Ma M, Yao S. Polyamidoamine dendrimer and oleic acid-functionalized graphene as biocompatible and efficient gene delivery vectors. ACS APPLIED MATERIALS & INTERFACES 2014; 6:8173-8183. [PMID: 24836601 DOI: 10.1021/am500812h] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Functionalized graphene has good potential in biomedical applications. To address a better and multiplex design of graphene-based gene vectors, the graphene-oleate-polyamidoamine (PAMAM) dendrimer hybrids were synthesized by the oleic acid adsorption and covalent linkage of PAMAM dendrimers. The micromorphology, electrical charge property, and amount of free amine groups of the graphene-oleate-PAMAM hybrids were characterized, and the peripheral functional groups were identified. The PAMAM dendrimers could be tethered onto graphene surface in high density. The graphene-oleate-PAMAM hybrids exhibit relatively good dispersity and stability in aqueous solutions. To evaluate the potential application of the hybrids in gene delivery vectors, cytotoxicity to HeLa and MG-63 cells and gene (plasmid DNA of enhanced green fluorescent protein) transfection capacity of the hybrids were investigated in detail. The graphene-oleate-PAMAM hybrids show mammalian cell type- and dose-dependent in vitro cytotoxicity. Under the optimal condition, the hybrids possess good biocompatibility and gene transfection capacity. The surface modification of graphene with oleic acid and PAMAM improves the gene transfection efficiency 13 times in contrast to the ultrasonicated graphene. Moreover, the hybrids show better transfection efficiency than the graphene oxide-PAMAM without the oleic acid modification.
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Affiliation(s)
- Xiahui Liu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University , Changsha 410081, People's Republic of China
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Jin L, Zeng X, Liu M, Deng Y, He N. Current progress in gene delivery technology based on chemical methods and nano-carriers. Am J Cancer Res 2014; 4:240-55. [PMID: 24505233 PMCID: PMC3915088 DOI: 10.7150/thno.6914] [Citation(s) in RCA: 248] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Accepted: 11/16/2013] [Indexed: 12/21/2022] Open
Abstract
Gene transfer methods are promising in the field of gene therapy. Current methods for gene transfer include three major groups: viral, physical and chemical methods. This review mainly summarizes development of several types of chemical methods for gene transfer in vitro and in vivo by means of nano-carriers like; calcium phosphates, lipids, and cationic polymers including chitosan, polyethylenimine, polyamidoamine dendrimers, and poly(lactide-co-glycolide). This review also briefly introduces applications of these chemical methods for gene delivery.
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