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Rajendran AP, Morales LC, Meenakshi Sundaram DN, Kucharski C, Uludağ H. Tuning the Potency of Farnesol-Modified Polyethylenimine with Polyanionic Trans-Booster to Enhance DNA Delivery. ACS Biomater Sci Eng 2024; 10:1589-1606. [PMID: 38336625 DOI: 10.1021/acsbiomaterials.4c00033] [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] [Indexed: 02/12/2024]
Abstract
Low molecular weight polyethylenimine (PEI) based lipopolymers become an attractive strategy to construct nonviral therapeutic carriers with promising transfection efficiency and minimal toxicity. Herein, this paper presents the design and synthesis of novel farnesol (Far) conjugated PEI, namely PEI1.2k-SA-Far7. The polymers had quick DNA complexation, effective DNA unpacking (dissociation), and cellular uptake abilities when complexed with plasmid DNA. However, they were unable to provide robust transfection in culture, indicating inability of Far grafting to improve the transfection efficacy significantly. To overcome this limitation, the commercially available polyanionic Trans-Booster additive, which is capable of displaying electrostatic interaction with PEI1.2k-SA-Far7, has been used to enhance the uptake of pDNA polyplexes and transgene expression. pDNA condensation was successfully achieved in the presence of the Trans-Booster with more stable polyplexes, and in vitro transfection efficacy of the polyplexes was improved to be comparable to that obtained with an established reference reagent. The PEI1.2k-SA-Far7/pDNA/Trans-Booster ternary complex exhibited good compatibility with cells and minimal hemolysis activity. This work demonstrates the exemplary potency of using additives in polyplexes and the potential of resultant ternary complexes for effective pDNA delivery.
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Affiliation(s)
- Amarnath Praphakar Rajendran
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Luis Carlos Morales
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | | | - Cezary Kucharski
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hasan Uludağ
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2H1, Canada
- Department of Biomedical Engineering and Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
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Abbasi Dezfouli S, Rajendran AP, Claerhout J, Uludag H. Designing Nanomedicines for Breast Cancer Therapy. Biomolecules 2023; 13:1559. [PMID: 37892241 PMCID: PMC10605068 DOI: 10.3390/biom13101559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
In 2020, breast cancer became the most diagnosed cancer worldwide. Conventional chemotherapies have major side effects due to their non-specific activities. Alternatively, short interfering RNA(siRNA)-carrying nanoparticles (NPs) have a high potential to overcome this non-specificity. Lipid-substituted polyethyleneimine (PEI) polymers (lipopolymers) have been reported as efficient non-viral carriers of siRNA. This study aims to engineer novel siRNA/lipopolymer nanocomplexes by incorporating anionic additives to obtain gene silencing through siRNA activity with minimal nonspecific toxicity. We first optimized our polyplexes in GFP+ MDA-MB-231 cells to effectively silence the GFP gene. Inclusion of phosphate buffer with pH 8.0 as complex preparation media and N-Lauroylsarcosine Sodium Salt as additive, achieved ~80% silencing with the least amount of undesired cytotoxicity, which was persistent for at least 6 days. The survivin gene was then selected as a target in MDA-MB-231 cells since there is no strong drug (i.e., small organic molecule) for inhibition of its oncogenic activity. The qRT-PCR, flow cytometry analysis and MTT assay revealed >80% silencing, ~95% cell uptake and >70% cell killing by the same formulation. We conclude that our lipopolymer can be further investigated as a lead non-viral carrier for breast cancer gene therapy.
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Affiliation(s)
- Saba Abbasi Dezfouli
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2V2, Canada;
| | - Amarnath P. Rajendran
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB T6G 2V2, Canada;
| | - Jillian Claerhout
- Department of Biological Sciences, Faculty of Science, University of Alberta, Edmonton, AB T6G 2V2, Canada;
| | - Hasan Uludag
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB T6G 2V2, Canada;
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, AB T6G 2V2, Canada;
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB T6G 2V2, Canada
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Rajendran AP, Ogundana O, Morales LC, Meenakshi Sundaram DN, Kucharski C, Kc R, Uludağ H. Transfection Efficacy and Cellular Uptake of Lipid-Modified Polyethyleneimine Derivatives for Anionic Nanoparticles as Gene Delivery Vectors. ACS APPLIED BIO MATERIALS 2023; 6:1105-1121. [PMID: 36853230 DOI: 10.1021/acsabm.2c00978] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Cationic polyethylenimine (PEI)-based nonviral gene carriers have been desirable to overcome the limitations of viral vectors in gene therapy. A range of PEI derivatives were designed, synthesized, and evaluated for nonviral delivery applications of plasmid DNA (pDNA). Linolenic acid, lauric acid, and oleic acid were covalently conjugated with low-molecular-weight PEI (Mw ∼ 1200 Da) via two different linkers, gallic acid (GA) and p-hydroxybenzoic acid (PHPA), that allows a differential loading of lipids per modified amine (3 vs 1, respectively). 1H NMR spectrum confirmed the expected structure of the conjugates as well as the level of lipid substitution. SYBR Green binding assay performed to investigate the 50% binding concentration (BC50) of lipophilic polymers to pDNA revealed increased BC50 with an increased level of lipid substitution. The particle analysis determined that GA- and PHPA-modified lipopolymers gave pDNA complexes with ∼300 and ∼100 nm in size, respectively. At the polymer/pDNA ratio of 5.0, the ζ-potentials of the complexes were negative (-6.55 to -10.6 mV) unlike the complexes with the native PEI (+11.2 mV). The transfection experiments indicated that the prepared lipopolymers showed higher transfection in attachment-dependent cells than in suspension cells based on the expression of the reporter green fluorescent protein (GFP) gene. When loaded with Cy3-labeled pDNA, the lipopolymers exhibited effective cellular uptake in attachment-dependent cells while the cellular uptake was limited in suspension cells. These results demonstrate the potential of lipid-conjugated PEI via GA and PHPA linkers, which are promising for the modification of anchorage-dependent cells.
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Affiliation(s)
- Amarnath Praphakar Rajendran
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Oluwanifemi Ogundana
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Luis Carlos Morales
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | | | - Cezary Kucharski
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Remant Kc
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada
| | - Hasan Uludağ
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2H1, Canada
- Department of Biomedical Engineering, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
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Fan X, Zhao X, Xu J, Wang J, Wang Q, Tang X. Triton modified polyethyleneimine conjugates assembled with growth arrest-specific protein 6 for androgenetic alopecia transdermal gene therapy. Mater Today Bio 2023; 19:100575. [PMID: 36815198 PMCID: PMC9939716 DOI: 10.1016/j.mtbio.2023.100575] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/16/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Androgenetic alopecia is an androgen-dependent skin disorder that commonly affects hair follicle growth and hair loss. Gene therapy that can promote the proliferation and survival of hair follicle cells can be a potential choice for its cure. While transdermal application of therapeutic functional nucleic acids across the stratum corneum is quite difficult. Here, we first develop a transdermal agent for functional nucleic acid delivery using Triton X-100-modified low molecular weight polyethyleneimine (PEI-Triton-N, N = 6 or 8). In vitro cell experiments demonstrate that the PEI-Triton-N conjugates can stably encapsulate and efficiently deliver plasmid DNA to hard-to-transfect keratinocyte HaCaT cells. Further mouse model studies show that PEI-Triton-6 can encapsulate and deliver growth arrest-specific protein 6 (Gas6) plasmid through transdermal administration. The transfected Gas6 prolongs the anagen status, inhibits the apoptosis of hair follicle cells, and further promotes the proliferation and differentiation of hair follicle cells. The PEI-Triton-6/pDNAGas6 complexes can obviously alleviate hair loss in androgenetic alopecia mice and provides a promising strategy for gene therapy via transdermal administration.
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Affiliation(s)
- Xinli Fan
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences and Chemical Biology Center, and Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, No. 38, Xueyuan Road, Beijing, 100191, People's Republic of China
| | - Xiaoran Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences and Chemical Biology Center, and Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, No. 38, Xueyuan Road, Beijing, 100191, People's Republic of China
| | - Jianfei Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences and Chemical Biology Center, and Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, No. 38, Xueyuan Road, Beijing, 100191, People's Republic of China
| | - Jing Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences and Chemical Biology Center, and Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, No. 38, Xueyuan Road, Beijing, 100191, People's Republic of China
| | - Qian Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences and Chemical Biology Center, and Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, No. 38, Xueyuan Road, Beijing, 100191, People's Republic of China
| | - Xinjing Tang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences and Chemical Biology Center, and Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, No. 38, Xueyuan Road, Beijing, 100191, People's Republic of China,State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210023, Jiangsu, People's Republic of China,Corresponding author. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences and Chemical Biology Center, and Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, No. 38, Xueyuan Road, Beijing, 100191, People's Republic of China.
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Meenakshi Sundaram DN, Plianwong S, Kc R, Ostergaard H, Uludağ H. In Vitro Cytotoxicity and Cytokine Production by Lipid-Substituted Low Molecular Weight Branched PEIs Used for Gene Delivery. Acta Biomater 2022; 148:279-297. [PMID: 35738388 DOI: 10.1016/j.actbio.2022.06.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 06/06/2022] [Accepted: 06/16/2022] [Indexed: 11/17/2022]
Abstract
Lipid-modified low molecular weight branched polyethyleneimines (PEIs) are promising non-viral gene delivery systems that have been successfully explored for treatment of various diseases. The present study aims to determine in vitro safety of these delivery systems based on assessment of cytotoxicity with peripheral blood mononuclear cells (PBMCs), hemolysis with human red blood cells (RBC) and cytokine secretion from several sources of PBMCs. The viability of cells treated with lipopolymer/pDNA complexes was dependent on the polymer:pDNA ratio used but remained low at therapeutically relevant concentrations for most lipopolymers, except for the propionic acid substituted PEIs. The extent of hemolysis was minimal and below the accepted safety levels with most of the lipopolymers; however, some linoleic acid substituted PEIs yielded significant hemolysis activity. Unlike strong cytokine secretion from PMA/IO stimulated cells, most lipopolymer/pDNA complexes remained non-responsive, showing minimal changes in cytokine secretion (TNF-α, IL-6 and IFN-γ) irrespective of the lipopolymer/pDNA formulations. The 0.6 kDa PEI with lauric acid substituent displayed slight cytokine upregulation, however it remained low relative to the positive controls. This study demonstrated that the lipid modified LMW PEIs are expected to be safe in contact with blood components. However, close attention to lipopolymer concentration and ratio of polymer to pDNA in formulations might be required for individual lipopolymers for optimal safety response in nucleic acid therapies. STATEMENT OF SIGNIFICANCE: : This manuscript investigated the safety aspects of various lipid modified low molecular weight polyethylenimine (LMW-PEI) polymers employed for pDNA delivery through in vitro studies. Using peripheral blood mononuclear cells (PBMCs) from multiple sources, we show that the hemolysis ability was minimal for most polymers, although a particular lipid substituent (linoleic acid) at specific ratios exhibited hemolysis. The levels of pro-inflammatory cytokines (TNF-α, IL-6 and IFN-γ) were slightly upregulated only with a lauric acid substituted 0.6PEI, but remained low relative to positive control treatments. We further report the beneficial effect of polyacrylic acid additives on hemolysis and cytokine secretion to a reasonable extent. This study confirms the feasibility of using LMW-PEI as safe delivery agents for various therapeutic purposes.
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Affiliation(s)
| | - Samarwadee Plianwong
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada; Faculty of Pharmaceutical Sciences, Burapha University, Chonburi, Thailand
| | - Remant Kc
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | - Hanne Ostergaard
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
| | - Hasan Uludağ
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada; Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada; Department of Biomedical Engineering, University of Alberta, Edmonton, AB, Canada.
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6
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Ansari AS, K C R, Jiang X, Uludaǧ H. Investigation of water-insoluble hydrophobic polyethylenimines as RNAi vehicles in chronic myeloid leukemia therapy. J Biomed Mater Res A 2021; 109:2306-2321. [PMID: 33964112 DOI: 10.1002/jbm.a.37214] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/19/2021] [Accepted: 04/25/2021] [Indexed: 11/10/2022]
Abstract
The discovery of RNA interference (RNAi) more than two decades ago opened avenues for avant-garde cancer treatments that possess the ability to evade issues hampering current chemotherapeutic strategies, owing to its specific gene sequence-driven mechanism of action. A potent short interfering RNA (siRNA) delivery vehicle designed to overcome physiological barriers is imperative for successful RNAi therapy. For this purpose, this study explored the characteristics and therapeutic efficacy of low-molecular weight (MW) polyethylenimine (PEI) with high cholesterol substitution, yielding water-insoluble polymers, in chronic myeloid leukemia (CML) K562 cells. A strong impact of cholesterol grafting on the physicochemical attributes of the resultant polymers and their corresponding complexes with siRNA was observed, with the siRNA binding capacity of polymers increasing and complex dissociation sensitivity decreasing with increase in cholesterol content of the polymers. The modified polymer complexes were significantly smaller in size and possessed higher cationic charge compared to the parent polymer. The interaction with anionic heparan sulfate preoteoglycans present on the cell surface was significant in cellular uptake of the complexes. The therapeutic efficacy of siRNA/polymer complexes was reflected in their ability to effectively silence the reporter green fluorescent protein gene and endogenous CML oncogene BCR-ABL as well as significantly inhibit colony formation by K562 cells post BCR-ABL silencing. The results of this study demonstrated beneficial effects of high levels of hydrophobic substitution on low MW PEI on their functional performance bestowing them the potential to be potent RNAi agents for CML therapy.
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Affiliation(s)
- Aysha S Ansari
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada
| | - Remant K C
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada
| | - Xiaoyan Jiang
- Department of Medical Genetics, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Hasan Uludaǧ
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada.,Department of Biomedical Engineering, Faculty of Medicine, University of Alberta, Edmonton, Canada.,Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada
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Kumar R, Santa Chalarca CF, Bockman MR, Bruggen CV, Grimme CJ, Dalal RJ, Hanson MG, Hexum JK, Reineke TM. Polymeric Delivery of Therapeutic Nucleic Acids. Chem Rev 2021; 121:11527-11652. [PMID: 33939409 DOI: 10.1021/acs.chemrev.0c00997] [Citation(s) in RCA: 149] [Impact Index Per Article: 49.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The advent of genome editing has transformed the therapeutic landscape for several debilitating diseases, and the clinical outlook for gene therapeutics has never been more promising. The therapeutic potential of nucleic acids has been limited by a reliance on engineered viral vectors for delivery. Chemically defined polymers can remediate technological, regulatory, and clinical challenges associated with viral modes of gene delivery. Because of their scalability, versatility, and exquisite tunability, polymers are ideal biomaterial platforms for delivering nucleic acid payloads efficiently while minimizing immune response and cellular toxicity. While polymeric gene delivery has progressed significantly in the past four decades, clinical translation of polymeric vehicles faces several formidable challenges. The aim of our Account is to illustrate diverse concepts in designing polymeric vectors towards meeting therapeutic goals of in vivo and ex vivo gene therapy. Here, we highlight several classes of polymers employed in gene delivery and summarize the recent work on understanding the contributions of chemical and architectural design parameters. We touch upon characterization methods used to visualize and understand events transpiring at the interfaces between polymer, nucleic acids, and the physiological environment. We conclude that interdisciplinary approaches and methodologies motivated by fundamental questions are key to designing high-performing polymeric vehicles for gene therapy.
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Affiliation(s)
- Ramya Kumar
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | - Matthew R Bockman
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Craig Van Bruggen
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christian J Grimme
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Rishad J Dalal
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mckenna G Hanson
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Joseph K Hexum
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Singh R, Kumar P. Disaccharide-polyethylenimine organic nanoparticles as non-toxic in vitro gene transporters and their anticancer potential. Bioorg Chem 2021; 112:104918. [PMID: 33932768 DOI: 10.1016/j.bioorg.2021.104918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/01/2021] [Accepted: 04/13/2021] [Indexed: 12/26/2022]
Abstract
Polyethylenimines (PEIs) have been shown as efficient gene delivery vectors due to their unique properties, however, toxicity as well as non-specific interactions with the tissues/cells because of high charge density have hampered their use in clinical applications. To counter these concerns, here, we have prepared disachharide-PEI organic nanoparticles by mixing PEIs with non-reducing disaccharides, i.e. trehalose (TPONs) and sucrose (SPONs), under mild conditions. The fabricated nanoparticles were complexed with pDNA and size of these complexes was found in the range of ~130-162 nm with zeta potential ~ +8-25 mV. Further evaluation of these nanoparticles revealed that substitution of disaccharides on PEIs successfully augmented cell viability. Transfection efficiency exhibited by these complexes was significantly higher than the unmodified polymer and the standard, Lipofectamine, complexes. Fabrication of organic nanoparticles did not alter the buffering capacity considerably which was found to be instrumental during endosomal escape of the complexes. Among both the series of nanoparticles, trehalose-PEI organic nanoparticles (TPONs) exhibited greater pDNA transportation potential than sucrose-PEI organic nanoparticles (SPONs) which was also established by flow cytometric data, wherein percent cells expressing GFP was higher in case of TP/pDNA complexes as compared to SP/pDNA complexes. Interestingly, TPONs also showed promising anticancer activity on cancer cell lines i.e. Mg63, MCF-7 and HepG2. Overall, the results advocate promising potential of disaccharide-PEI organic nanoparticles as efficient gene delivery agents which can be used effectively in future gene therapy applications along with anti-cancer competence of TPONs.
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Affiliation(s)
- Reena Singh
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pradeep Kumar
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Radmanesh F, Sadeghi Abandansari H, Ghanian MH, Pahlavan S, Varzideh F, Yakhkeshi S, Alikhani M, Moradi S, Braun T, Baharvand H. Hydrogel-mediated delivery of microRNA-92a inhibitor polyplex nanoparticles induces localized angiogenesis. Angiogenesis 2021; 24:657-676. [PMID: 33742265 DOI: 10.1007/s10456-021-09778-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 03/01/2021] [Indexed: 01/07/2023]
Abstract
Localized stimulation of angiogenesis is an attractive strategy to improve the repair of ischemic or injured tissues. Several microRNAs (miRNAs) such as miRNA-92a (miR-92a) have been reported to negatively regulate angiogenesis in ischemic disease. To exploit the clinical potential of miR-92a inhibitors, safe and efficient delivery needs to be established. Here, we used deoxycholic acid-modified polyethylenimine polymeric conjugates (PEI-DA) to deliver a locked nucleic acid (LNA)-based miR-92a inhibitor (LNA-92a) in vitro and in vivo. The positively charged PEI-DA conjugates condense the negatively charged inhibitors into nano-sized polyplexes (135 ± 7.2 nm) with a positive net charge (34.2 ± 10.6 mV). Similar to the 25 kDa-branched PEI (bPEI25) and Lipofectamine RNAiMAX, human umbilical vein endothelial cells (HUVECs) significantly internalized PEI-DA/LNA-92a polyplexes without any obvious cytotoxicity. Down-regulation of miR-92a following the polyplex-mediated delivery of LNA-92a led to a substantial increase in the integrin subunit alpha 5 (ITGA5), the sirtuin-1 (SIRT1) and Krüppel-like factors (KLF) KLF2/4 expression, formation of capillary-like structures by HUVECs, and migration rate of HUVECs in vitro. Furthermore, PEI-DA/LNA-92a resulted in significantly enhanced capillary density in a chicken chorioallantoic membrane (CAM) model. Localized angiogenesis was substantially induced in the subcutaneous tissues of mice by sustained release of PEI-DA/LNA-92a polyplexes from an in situ forming, biodegradable hydrogel based on clickable poly(ethylene glycol) (PEG) macromers. Our results indicate that PEI-DA conjugates efficiently deliver LNA-92a to improve angiogenesis. Localized delivery of RNA interference (RNAi)-based therapeutics via hydrogel-laden PEI-DA polyplex nanoparticles appears to be a safe and effective approach for different therapeutic targets.
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Affiliation(s)
- Fatemeh Radmanesh
- Uro-Oncology Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Hamid Sadeghi Abandansari
- Department of Cancer Medicine, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Babol, Iran
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mohammad Hossein Ghanian
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Sara Pahlavan
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Fahimeh Varzideh
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Saeed Yakhkeshi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Mehdi Alikhani
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Sharif Moradi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Thomas Braun
- Max-Planck Institute for Heart and Lung Research, Department of Cardiac Development and Remodeling, Bad Nauheim, Germany
| | - Hossein Baharvand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
- Department of Developmental Biology, University of Science and Culture, Tehran, Iran.
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The combined disulfide cross-linking and tyrosine-modification of very low molecular weight linear PEI synergistically enhances transfection efficacies and improves biocompatibility. Eur J Pharm Biopharm 2021; 161:56-65. [PMID: 33582186 DOI: 10.1016/j.ejpb.2021.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/06/2021] [Accepted: 02/07/2021] [Indexed: 01/12/2023]
Abstract
Efficient and non-toxic DNA delivery is still a major limiting factor for non-viral gene therapy. Among the large diversity of non-viral vectors, the cationic polymer polyethylenimine (PEI) plays a prominent role in nucleic acid delivery. Since higher molecular weight of PEI is beneficial for transfection efficacy, but also leads to higher cytotoxicity, the biodegradable cross-linking of low-molecular PEIs, e.g. through disulfide-groups, has been introduced. Another promising strategy is the chemical modification of PEI, for example with amino acids like tyrosine. In the case of small RNA molecules, this PEI grafting has been found to enhance transfection efficacies and improve biocompatibility. In this paper, we report on the combination of these two strategies for improving DNA delivery: the (i) cross-linking of very small 2 kDa PEI ("P2") molecules through biodegradable disulfide-groups ("SS"), in combination with (ii) tyrosine-modification ("Y"). We demonstrate a surprisingly substantial, synergistic enhancement of transfection efficacies of these SSP2Y/DNA complexes over their non- or mono-modified polymer counterparts, accompanied by high biocompatibility as well as favorable physicochemical and biological properties. Beyond various cell lines, high biological activity of the SSP2Y-based complexes is also seen in an ex vivo tissue slice model, more closely mimicking in vivo conditions. The particularly high transfection efficacy SSP2Y/DNA complexes in 2D and 3D models, based on their optimized complex stability and DNA release, as well as their high biocompatibility thus provides the basis for their further exploration for therapeutic application.
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Singh R, Jha D, Gautam HK, Kumar P. Supramolecular self-assemblies of engineered polyethylenimines as multifunctional nanostructures for DNA transportation with excellent antimicrobial activity. Bioorg Chem 2020; 106:104463. [PMID: 33213896 DOI: 10.1016/j.bioorg.2020.104463] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/30/2020] [Accepted: 11/03/2020] [Indexed: 12/25/2022]
Abstract
In this study, indole-3-butanoic acid (IBA), a biologically and environmentally safe entity, has been grafted onto low and high molecular weight (1.8 and 25 kDa) polyethylenimines (PEI) mainly through primary amines to obtain amphiphilic indole-3-butanoyl-polyethylenimines (IBPs). Two series of IBPs (IBP1.8 and IBP25) were prepared which, on self-assembly in aqueous medium, yielded multifunctional nanomicellar structures (IBP1.8 and IBP25) capable of transporting genetic material in vitro and exhibiting other biological activities. Physicochemical characterization showed the size of IBP1.8 and IBP25 nanostructures in the range of ~332-234 nm and ~283-166 nm, respectively, with zeta potential varying from ~+29-17 mV and ~+37-25 mV. DNA release assay demonstrated higher release of plasmid DNA from IBP nanostructures as compared to native PEIs. Cytotoxicity showed a decreasing pattern with increasing degree of grafting of IBA onto PEIs making these nanostructures non-toxic. pDNA complexes of these nanostructures (both IBPs1.8 and IBPs25) displayed considerably higher transfection efficiency, however, IBP1.8/pDNA complexes performed much better (~7-9 folds) as compared to native PEI/pDNA and Lipofectamine/pDNA complexes on mammalian cells. CLSM analysis revealed that these complexes entered nucleus in sufficient amounts suggesting higher uptake and efficient internalization of the complexes. Besides, these supramolecular nanostructures not only exhibited excellent antimicrobial potential (MIC ~49-100 µg/ml) against clinical as well as resistant pathogenic strains but also found to possess antioxidant property. Overall, the projected low molecular weight PEI-based vectors could serve as more effective multifunctional nanomaterials having promising potential for future gene therapy applications with capability to provide protection against other bacterial infections.
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Affiliation(s)
- Reena Singh
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Diksha Jha
- Microbial Biotechnology Laboratory, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Hemant Kumar Gautam
- Microbial Biotechnology Laboratory, CSIR-Institute of Genomics and Integrative Biology, Sukhdev Vihar, New Delhi 110025, India
| | - Pradeep Kumar
- Nucleic Acids Research Laboratory, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi 110007, India.
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12
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Cao M, Gao Y, Qiu N, Shen Y, Shen P. Folic acid directly modified low molecular weight of polyethyleneimine for targeted pDNA delivery. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101522] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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13
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Ke L, Cai P, Wu Y, Chen X. Polymeric Nonviral Gene Delivery Systems for Cancer Immunotherapy. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.201900213] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lingjie Ke
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress BiologySchool of Pharmaceutical SciencesXiamen University Xiamen 361102 China
| | - Pingqiang Cai
- School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
| | - Yun‐Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress BiologySchool of Pharmaceutical SciencesXiamen University Xiamen 361102 China
| | - Xiaodong Chen
- School of Materials Science and EngineeringNanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore
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Non-Viral in Vitro Gene Delivery: It is Now Time to Set the Bar! Pharmaceutics 2020; 12:pharmaceutics12020183. [PMID: 32098191 PMCID: PMC7076396 DOI: 10.3390/pharmaceutics12020183] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 01/31/2023] Open
Abstract
Transfection by means of non-viral gene delivery vectors is the cornerstone of modern gene delivery. Despite the resources poured into the development of ever more effective transfectants, improvement is still slow and limited. Of note, the performance of any gene delivery vector in vitro is strictly dependent on several experimental conditions specific to each laboratory. The lack of standard tests has thus largely contributed to the flood of inconsistent data underpinning the reproducibility crisis. A way researchers seek to address this issue is by gauging the effectiveness of newly synthesized gene delivery vectors with respect to benchmarks of seemingly well-known behavior. However, the performance of such reference molecules is also affected by the testing conditions. This survey points to non-standardized transfection settings and limited information on variables deemed relevant in this context as the major cause of such misalignments. This review provides a catalog of conditions optimized for the gold standard and internal reference, 25 kDa polyethyleneimine, that can be profitably replicated across studies for the sake of comparison. Overall, we wish to pave the way for the implementation of standardized protocols in order to make the evaluation of the effectiveness of transfectants as unbiased as possible.
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15
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Thapa B, KC R, Bahniuk M, Schmitke J, Hitt M, Lavasanifar A, Kutsch O, Seol DW, Uludag H. Breathing New Life into TRAIL for Breast Cancer Therapy: Co-Delivery of pTRAIL and Complementary siRNAs Using Lipopolymers. Hum Gene Ther 2019; 30:1531-1546. [DOI: 10.1089/hum.2019.096] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Bindu Thapa
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada
| | - Remant KC
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada
| | - Markian Bahniuk
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada
| | - Janine Schmitke
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada
| | - Mary Hitt
- Department of Oncology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
| | - Afsaneh Lavasanifar
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada
| | - Olaf Kutsch
- Department of Medicine, University of Alabama, Birmingham, Alabama
| | - Dai-Wu Seol
- College of Pharmacy, Chung-Ang University, Seoul, South Korea
| | - Hasan Uludag
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Canada
- Department of Chemical and Materials Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Canada
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Jiang Q, Yuan Y, Gong Y, Luo X, Su X, Hu X, Zhu W. Therapeutic delivery of microRNA-143 by cationic lipoplexes for non-small cell lung cancer treatment in vivo. J Cancer Res Clin Oncol 2019; 145:2951-2967. [PMID: 31654121 DOI: 10.1007/s00432-019-03051-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/04/2019] [Indexed: 02/07/2023]
Abstract
PURPOSE Non-small cell lung cancer (NSCLC) remains the leading cause of cancer-related deaths worldwide and new improvements are urgently needed. Several miRNA-targeted therapeutics have reached clinical development. MicroRNA-143 (miR-143) was found to significantly suppress the migration and invasion of NSCLC. It might be of great potential for NSCLC treatment. However, the therapeutic effect of miR-143 against NSCLC in vivo has not been explored until now. METHODS The cationic liposome/pVAX-miR-143 complex (CL-pVAX-miR-143) was prepared and its biodistribution was assessed. The tumor suppression effects of CL-pVAX-miR-143 were evaluated in early-stage and advanced experimental lung cancer metastasis mice models by systemic delivery, respectively, and also in subcutaneous tumor models by intratumoral injection. The toxicity of CL-pVAX-miR-143 was assessed by H&E analysis and biochemical measurements. The preliminary mechanism of CL-pVAX-miR-143 on tumor suppression was explored by immunochemistry and western blotting. RESULTS The assays on the stability and safety of CL-pVAX-miR-143 showed that it mainly accumulated in the lung after systemic administration. The intratumoral delivery of CL-pVAX-miR-143 effectively inhibited A549 subcutaneous tumor growth. Notably, systemic delivery of CL-pVAX-miR-143 significantly inhibited tumor metastasis and prolonged survival dose dependently in early-stage experimental lung cancer metastasis models. More importantly, same results were shown in advanced mice models with metastasis. CL-pVAX-miR-143 treatment did not induce obvious acute toxicity. The preliminary mechanism on inhibiting tumor metastasis might be induced by targeting CD44v3. CONCLUSIONS Our results suggested that CL-pVAX-miR-143 might be a promising strategy for clinical treatment of non-small cell lung cancer, especially for advanced NSCLC with metastasis.
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Affiliation(s)
- Qianqian Jiang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/Collaborative Innovation Center of Biotherapy, No. 1, Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, 610041, Sichuan, China
| | - Yue Yuan
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/Collaborative Innovation Center of Biotherapy, No. 1, Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, 610041, Sichuan, China
| | - Yi Gong
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/Collaborative Innovation Center of Biotherapy, No. 1, Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, 610041, Sichuan, China
| | - Xinmei Luo
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/Collaborative Innovation Center of Biotherapy, No. 1, Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, 610041, Sichuan, China
| | - Xiaolan Su
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/Collaborative Innovation Center of Biotherapy, No. 1, Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, 610041, Sichuan, China
| | - Xueting Hu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/Collaborative Innovation Center of Biotherapy, No. 1, Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, 610041, Sichuan, China
| | - Wen Zhu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University/Collaborative Innovation Center of Biotherapy, No. 1, Keyuan 4th Road, Gaopeng Street, High Technological Development Zone, Chengdu, 610041, Sichuan, China.
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Ewe A, Noske S, Karimov M, Aigner A. Polymeric Nanoparticles Based on Tyrosine-Modified, Low Molecular Weight Polyethylenimines for siRNA Delivery. Pharmaceutics 2019; 11:pharmaceutics11110600. [PMID: 31726756 PMCID: PMC6920781 DOI: 10.3390/pharmaceutics11110600] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/06/2019] [Accepted: 11/08/2019] [Indexed: 01/02/2023] Open
Abstract
A major hurdle for exploring RNA interference (RNAi) in a therapeutic setting is still the issue of in vivo delivery of small RNA molecules (siRNAs). The chemical modification of polyethylenimines (PEIs) offers a particularly attractive avenue towards the development of more efficient non-viral delivery systems. Here, we explore tyrosine-modified polyethylenimines with low or very low molecular weight (P2Y, P5Y, P10Y) for siRNA delivery. In comparison to their respective parent PEI, they reveal considerably increased knockdown efficacies and very low cytotoxicity upon tyrosine modification, as determined in different reporter and wildtype cell lines. The delivery of siRNAs targeting the anti-apoptotic oncogene survivin or the serine/threonine-protein kinase PLK1 (polo-like kinase 1; PLK-1) oncogene reveals strong inhibitory effects in vitro. In a therapeutic in vivo setting, profound anti-tumor effects in a prostate carcinoma xenograft mouse model are observed upon systemic application of complexes for survivin or PLK1 knockdown, in the absence of in vivo toxicity. We thus demonstrate the tyrosine-modification of (very) low molecular weight PEIs for generating efficient nanocarriers for siRNA delivery in vitro and in vivo, present data on their physicochemical and biological properties, and show their efficacy as siRNA therapeutic in vivo, in the absence of adverse effects.
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Affiliation(s)
- Alexander Ewe
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
| | - Sandra Noske
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
- Faculty of Chemistry, Technical University Kaiserslautern, 67663 Kaiserslautern, Germany
| | - Michael Karimov
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
| | - Achim Aigner
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, Clinical Pharmacology, Leipzig University, 04107 Leipzig, Germany; (A.E.); (S.N.); (M.K.)
- Correspondence: ; Tel.: +49-(0)341-9724661
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18
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Wang P, Yan Y, Sun Y, Zhang R, Huo C, Li L, Wang K, Dong Y, Xing J. Bioreducible and acid-labile polydiethylenetriamines with sequential degradability for efficient transgelin-2 siRNA delivery. J Mater Chem B 2019; 7:6994-7005. [PMID: 31625545 DOI: 10.1039/c9tb01183h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The transgelin-2 (TAGLN2) protein plays an important role in multidrug resistance in human breast cancer. siRNA mediated gene silencing of TAGLN2 is a promising strategy for paclitaxel resistance reversal in breast cancer. In this study, a series of bioreducible and acid-labile polydiethylenetriamines (PDs) with different proportions of cross-linkers were synthesized. TAGLN2 siRNA was condensed by PDs to form dual-responsive nanocomplexes, and these nanocomplexes were hypothesized to partially degrade in the acidic environment of endosomes, and then completely degrade in the reducing environment of the cytoplasm to release siRNA. It was found that PDs have good water solubility, acid-base buffering capacity, suitable degradability and high biocompatibility. Moreover, PDCKM can deliver TAGLN2 siRNA into MCF-7/PTX cells and inhibit the expression of TAGLN2 even better than PEI 25k. Besides, paclitaxel showed higher cytotoxicity in cells incubated with PDCKM/TAGLN2 siRNA nanocomplexes. These results suggested that PDs have great potential for safe and efficient siRNA delivery to reverse paclitaxel resistance in breast cancer.
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Affiliation(s)
- Pengchong Wang
- School of Pharmacy, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an 710061, Shaanxi, China.
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Cao M, Gao Y, Zhan M, Qiu N, Piao Y, Zhou Z, Shen Y. Glycyrrhizin Acid and Glycyrrhetinic Acid Modified Polyethyleneimine for Targeted DNA Delivery to Hepatocellular Carcinoma. Int J Mol Sci 2019; 20:E5074. [PMID: 31614879 PMCID: PMC6829341 DOI: 10.3390/ijms20205074] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/09/2019] [Accepted: 10/10/2019] [Indexed: 12/22/2022] Open
Abstract
In the last 2-3 decades, gene therapy represented a promising option for hepatocellular carcinoma (HCC) treatment. However, the design of safe and efficient gene delivery systems is still one of the major challenges that require solutions. In this study, we demonstrate a versatile method for covalent conjugation of glycyrrhizin acid (GL) or glycyrrhetinic acid (GA) to increase the transfection efficiency of Polyethyleneimine (PEI, Mw 1.8K) and improve their targeting abilities of hepatoma carcinoma cells. GA and GL targeting ligands were grafted to PEI via N-acylation, and we systematically investigated their biophysical properties, cytotoxicity, liver targeting and transfection efficiency, and endocytosis pathway trafficking. PEI-GA0.75, PEI-GL10.62 and PEI-GL20.65 conjugates caused significant increases in gene transfection efficiency and superior selectivity for HepG2 cells, with all three conjugates showing specific recognition of HepG2 cells by the free GA competition assay. The endocytosis inhibition and intracellular trafficking results indicated that PEI-GA0.75 and GL10.62 conjugates behaved similarly to SV40 virus, by proceeding via the caveolae- and clathrin-independent mediated endocytosis pathway and bypassing entry into lysosomes, with an energy independent manner, achieving their high transfection efficiencies. In the HepG2 intraperitoneal tumor model, PEI-GA0.75 and PEI-GL10.62 carrying the luciferase reporter gene gained high gene expression, suggesting potential use for in vivo application.
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Affiliation(s)
- Mingzhuo Cao
- Center for Bio-nanoengineering and Key Laboratory of Biomass Chemical Engineering, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
- Scientific Research and Experimental Center, Henan University of Chinese Medicine, Zhengzhou 450058, China.
| | - Yong Gao
- Henan province food and drug Administration, Food and Drug Evaluation and Inspection Center, Zhengzhou 450018, China.
| | - Mengling Zhan
- Scientific Research and Experimental Center, Henan University of Chinese Medicine, Zhengzhou 450058, China.
| | - Nasha Qiu
- Center for Bio-nanoengineering and Key Laboratory of Biomass Chemical Engineering, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Ying Piao
- Center for Bio-nanoengineering and Key Laboratory of Biomass Chemical Engineering, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Zhuxian Zhou
- Center for Bio-nanoengineering and Key Laboratory of Biomass Chemical Engineering, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Youqing Shen
- Center for Bio-nanoengineering and Key Laboratory of Biomass Chemical Engineering, Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China.
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Kravicz MH, Balogh DT, Kar M, Wedepohl S, Bentley MVLB, Calderón M. Influence of Alkyl Chains of Modified Polysuccinimide‐Based Polycationic Polymers on Polyplex Formation and Transfection. Macromol Biosci 2019; 19:e1900117. [PMID: 31402631 DOI: 10.1002/mabi.201900117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/01/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Marcelo H. Kravicz
- School of Pharmaceutical Sciences of Ribeirão PretoUniversity of São Paulo Avenida do Café, s/n 14040903 Ribeirão Preto SP Brazil
- Institute of Chemistry and BiochemistryFreie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Debora T. Balogh
- São Carlos Institute of PhysicsUniversity of São Paulo CP 369 13560‐970 São Carlos SP Brazil
| | - Mrityunjoy Kar
- Institute of Chemistry and BiochemistryFreie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Stefanie Wedepohl
- Institute of Chemistry and BiochemistryFreie Universität Berlin Takustraße 3 14195 Berlin Germany
| | - Maria Vitoria L. B. Bentley
- School of Pharmaceutical Sciences of Ribeirão PretoUniversity of São Paulo Avenida do Café, s/n 14040903 Ribeirão Preto SP Brazil
| | - Marcelo Calderón
- Institute of Chemistry and BiochemistryFreie Universität Berlin Takustraße 3 14195 Berlin Germany
- IKERBASQUEBasque Foundation for Science 48013 Bilbao Spain
- POLYMAT and Applied Chemistry DepartmentFaculty of ChemistryUniversity of the Basque Country UPV/EHU Paseo Manuel de Lardizabal 3 20018 Donostia‐San Sebastián Spain
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Optimization of miRNA delivery by using a polymeric conjugate based on deoxycholic acid-modified polyethylenimine. Int J Pharm 2019; 565:391-408. [DOI: 10.1016/j.ijpharm.2019.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 05/01/2019] [Accepted: 05/05/2019] [Indexed: 12/12/2022]
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Cheng WJ, Chen LC, Ho HO, Lin HL, Sheu MT. Stearyl polyethylenimine complexed with plasmids as the core of human serum albumin nanoparticles noncovalently bound to CRISPR/Cas9 plasmids or siRNA for disrupting or silencing PD-L1 expression for immunotherapy. Int J Nanomedicine 2018; 13:7079-7094. [PMID: 30464460 PMCID: PMC6220435 DOI: 10.2147/ijn.s181440] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
PURPOSE In this study, a double emulsion method for complexing plasmids with stearyl poly-ethylenimine (stPEI) as the core to form human serum albumin (HSA) (plasmid/stPEI/HSA) nanoparticles (NPs) was developed for gene delivery by non-covalently binding onto plasmid/stPEI/HSA nanoparticles with CRISPR/Cas9 or siRNA, which disrupts or silences the expression of programmed cell death ligand-1 (PD-L1) for immunotherapy. MATERIALS AND METHODS Chemically synthesized stearyl-polyethyenimine (stPEI)/plasmids/HSA nanoparticles were maded by double emulsion method. They were characterized by dynamic light scattering (DLS), transmission electron microscope and also evaluated by in vitro study on CT 26 cells. RESULTS stPEI was synthesized by an N-(3-dimethylaminopropyl)-N-ethylcarbodiimide hydrochloride (EDC)-N-hydroxysuccinimide (NHS) reaction, and we found that the degree of substitution was ~1.0 when the ratio of PEI to stearic acid was 1:7 in the reaction. Then, two sgRNA sequences were selected and evaluated for their ability to knock out PD-L1 by decreasing its expression by about 20%. Based on the trend of particle size/zeta potential values as a function of ratio, F25P1 containing 25 μg of plasmid/stPEI/HSA NPs noncovalently bound to 1 μg plasmids via charge-charge interactions was found to be optimal. Its particle size was about 202.7±4.5 nm, and zeta potential was 12.60±0.15 mV. In an in vitro study, these NPs showed little cytotoxicity but high cellular uptake. Moreover, they revealed the potential for transfection and PD-L1 knockout in an in vitro cell model. Furthermore, F25P1S0.5 containing 25 μg of plasmid/stPEI/HSA NPs noncovalently bound to 1 μg of plasmids and 0.5 μg siRNA was prepared to simultaneously deliver plasmids and siRNA. An in vitro study demonstrated that the siRNA did not interfere with the transfection of plasmids and showed a high-transfection efficiency with a synergistic effect on inhibition of PD-L1 expression by 21.95%. CONCLUSION The plasmids/stPEI/HSA NPs could be a promising tool for gene delivery and improved immunotherapy.
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Affiliation(s)
- Wei-Jie Cheng
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan,
| | - Ling-Chun Chen
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu, Taiwan
| | - Hsiu-O Ho
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan,
| | - Hong-Liang Lin
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan,
| | - Ming-Thau Sheu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan,
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Thapa B, Bahadur KC R, Uludağ H. Novel targets for sensitizing breast cancer cells to TRAIL-induced apoptosis with siRNA delivery. Int J Cancer 2017; 142:597-606. [DOI: 10.1002/ijc.31079] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 09/09/2017] [Accepted: 09/19/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Bindu Thapa
- Faculty of Pharmacy and Pharmaceutical Sciences; University of Alberta; Edmonton AB Canada
| | - Remant Bahadur KC
- Department of Chemical and Material Engineering, Faculty of Engineering; University of Alberta; Edmonton AB Canada
| | - Hasan Uludağ
- Faculty of Pharmacy and Pharmaceutical Sciences; University of Alberta; Edmonton AB Canada
- Department of Chemical and Material Engineering, Faculty of Engineering; University of Alberta; Edmonton AB Canada
- Department of Biomedical Engineering, Faculty of Medicine and Dentistry; University of Alberta; Edmonton AB Canada
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Xie Z, Zeng X. DNA/RNA-based formulations for treatment of breast cancer. Expert Opin Drug Deliv 2017; 14:1379-1393. [DOI: 10.1080/17425247.2017.1317744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Zhaolu Xie
- Department of Pharmacy, Daping Hospital & Research Institute of Surgery, Third Military Medical University, Chongqing, China
| | - Xianghui Zeng
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
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25
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Park JS, Yi SW, Kim HJ, Kim SM, Kim JH, Park KH. Construction of PLGA Nanoparticles Coated with Polycistronic SOX5, SOX6, and SOX9 Genes for Chondrogenesis of Human Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1361-1372. [PMID: 28005327 DOI: 10.1021/acsami.6b15354] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Transfection of a cocktail of genes into cells has recently attracted attraction in stem cell differentiation. However, it is not easy to control the transfection rate of each gene. To control and regulate gene delivery into human mesenchymal stem cells (hMSCs), we employed multicistronic genes coupled with a nonviral gene carrier system for stem cell differentiation. Three genes, SOX5, SOX6, and SOX9, were successfully fabricated in a single plasmid. This multicistronic plasmid was complexed with the polycationic polymer polyethylenimine, and poly(lactic-co-glycolic) acid (PLGA) nanoparticles were coated with this complex. The uptake of PLGA nanoparticles complexed with the multicistronic plasmid was tested first. Thereafter, transfection of SOX5, SOX6, and SOX9 was evaluated, which increased the potential for chondrogenesis of hMSCs. The expression of specific genes triggered by transfection of SOX5, SOX6, and SOX9 was tested by RT-PCR and real-time qPCR. Furthermore, specific proteins related to chondrocytes were investigated by a glycosaminoglycan/DNA assay, Western blotting, histological analyses, and immunofluorescence staining. These methods demonstrated that chondrogenesis of hMSCs treated with PLGA nanoparticles carrying this multicistronic genes was better than that of hMSCs treated with other carriers. Furthermore, the multicistronic genes complexed with PLGA nanoparticles were more simple than that of each single gene complexation with PLGA nanoparticles. Multicistronic genes showed more chondrogenic differentiation than each single gene transfection methods.
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Affiliation(s)
- Ji Sun Park
- Department of Biomedical Science, College of Life Science, CHA University , 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 134-88, Korea
| | - Se Won Yi
- Department of Biomedical Science, College of Life Science, CHA University , 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 134-88, Korea
| | - Hye Jin Kim
- Department of Biomedical Science, College of Life Science, CHA University , 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 134-88, Korea
| | - Seong Min Kim
- Department of Biomedical Science, College of Life Science, CHA University , 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 134-88, Korea
| | - Jae-Hwan Kim
- Department of Biomedical Science, College of Life Science, CHA University , 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 134-88, Korea
| | - Keun-Hong Park
- Department of Biomedical Science, College of Life Science, CHA University , 6F, CHA Bio-complex, 689 Sampyeong-dong Bundang-gu, Seongnam-si 134-88, Korea
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