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Niu H, Liu Y, Wang Y, Yang Y, Wang G, James TD, Sessler JL, Zhang H. Photochemical and biological dual-effects enhance the inhibition of photosensitizers for tumour growth. Chem Sci 2024; 15:7757-7766. [PMID: 38784735 PMCID: PMC11110147 DOI: 10.1039/d4sc00874j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
Photosensitizers typically rely on a singular photochemical reaction to generate reactive oxygen species, which can then inhibit or eradicate lesions. However, photosensitizers often exhibit limited therapeutic efficiency due to their reliance on a single photochemical effect. Herein, we propose a new strategy that integrates the photochemical effect (type-I photochemical effect) with a biological effect (proton sponge effect). To test our strategy, we designed a series of photosensitizers (ZZ-sers) based on the naphthalimide molecule. ZZ-sers incorporate both a p-toluenesulfonyl moiety and weakly basic groups to activate the proton sponge effect while simultaneously strengthening the type-I photochemical effect, resulting in enhanced apoptosis and programmed cell death. Experiments confirmed near-complete eradication of the tumour burden after 14 days (Wlight/Wcontrol ≈ 0.18, W represents the tumour weight). These findings support the notion that the coupling of a type-I photochemical effect with a proton sponge effect can enhance the tumour inhibition by ZZ-sers, even if the basic molecular backbones of the photosensitizers exhibit nearly zero or minimal tumour inhibition ability. We anticipate that this strategy can be generalized to develop additional new photosensitizers with improved therapeutic efficacy while overcoming limitations associated with systems relying solely on single photochemical effects.
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Affiliation(s)
- Huiyu Niu
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Organic Functional Molecules and Drug Innovation Key Laboratory of Henan Province, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China +86-373-3329030 +86-373-3329030
| | - Yang Liu
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Organic Functional Molecules and Drug Innovation Key Laboratory of Henan Province, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China +86-373-3329030 +86-373-3329030
| | - Yafu Wang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Organic Functional Molecules and Drug Innovation Key Laboratory of Henan Province, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China +86-373-3329030 +86-373-3329030
| | - Yonggang Yang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Organic Functional Molecules and Drug Innovation Key Laboratory of Henan Province, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China +86-373-3329030 +86-373-3329030
| | - Ge Wang
- College of Basic Medicine, Xinxiang Medical University Xinxiang Henan 453007 P. R. China
| | - Tony D James
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Organic Functional Molecules and Drug Innovation Key Laboratory of Henan Province, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China +86-373-3329030 +86-373-3329030
- Department of Chemistry, University of Bath Bath BA2 7AY UK
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin Austin 78712 USA
| | - Hua Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Centre of Henan Province for Green Manufacturing of Fine Chemicals, Organic Functional Molecules and Drug Innovation Key Laboratory of Henan Province, School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China +86-373-3329030 +86-373-3329030
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2
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Overcoming the non-kinetic activity of EGFR1 using multi-functionalized mesoporous silica nanocarrier for in vitro delivery of siRNA. Sci Rep 2022; 12:17208. [PMID: 36241668 PMCID: PMC9568566 DOI: 10.1038/s41598-022-21601-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 09/29/2022] [Indexed: 01/06/2023] Open
Abstract
Triple-negative breast cancer (TNBC) does not respond to HER2-targeted and hormone-based medicines. Epidermal growth factor receptor 1 (EGFR1) is commonly overexpressed in up to 70% of TNBC cases, so targeting cancer cells via this receptor could emerge as a favored modality for TNBC therapy due to its target specificity. The development of mesoporous silica nanoparticles (MSNs) as carriers for siRNAs remains a rapidly growing area of research. For this purpose, a multi-functionalized KIT-6 containing the guanidinium ionic liquid (GuIL), PEI and PEGylated folic acid (FA-PEG) was designed. Accordingly, KIT-6 was fabricated and modified with FA-PEG and PEI polymers attached on the surface and the GuIL placed in the mesopores. Subsequent to confirming the structure of this multi-functionalized KIT-6- based nanocarrier using TEM, SEM, AFM, BET, BJH, DLS and Zeta Potential, it was investigated for uploading and transferring the anti-EGFR1 siRNAs to the MD-MBA-231 cell line. The rate of cellular uptake, cellular localization and endolysosomal escape was evaluated based on the fluorescent intensity of FAM-labelled siRNA using flowcytometry analysis and confocal laser scanning microscopy (CLSM). The 64% cellular uptake after 4 h incubation, clearly suggested the successful delivery of siRNA into the cells and, CLSM demonstrated that siRNA@[FA-PEGylated/PEI@GuIL@KIT-6] may escape endosomal entrapment after 6 h incubation. Using qPCR, quantitative evaluation of EGFR1 gene expression, a knockdown of 82% was found, which resulted in a functional change in the expression of EGFR1 targets. Co-treatment of chemotherapy drug "carboplatin" in combination with siRNA@[FA-PEGylated/PEI@GuIL@KIT-6] exhibited a remarkable cytotoxic effect in comparison to carboplatin alone.
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Ebrahimian M, Hashemi M, Farzadnia M, Zarei-Ghanavati S, Malaekeh-Nikouei B. Development of targeted gene delivery system based on liposome and PAMAM dendrimer functionalized with hyaluronic acid and TAT peptide: in vitro and in vivo studies. Biotechnol Prog 2022; 38:e3278. [PMID: 35652279 DOI: 10.1002/btpr.3278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 05/04/2022] [Accepted: 05/22/2022] [Indexed: 11/10/2022]
Abstract
The development of gene delivery systems is essential to improve their transfection efficiency and cytotoxicity. Combination of lipid and polymeric nanoparticles with the characteristics of both systems have been considered as a next-generation gene delivery platform. In the current study, we designed a novel and efficient targeted gene delivery system based on liposome and PAMAM dendrimer in cancer cells. Two polymeric formulations containing polyamidoamine-TAT (PAMAM-TAT) and PAMAM-TAT-Hyaluronic acid (HA) and two lipopolymeric carriers including PAMAM-TAT-Liposome and PAMAM-TAT-HA-Liposome were complexed with the Enhanced Green Fluorescent Protein (EGFP) plasmid and then evaluated in terms of physicochemical characteristics. The cytotoxicity and transfection efficiency of these synthetized carriers were accomplished against murine colon carcinoma cell line (C26). The biodistribution of polyplexes and lipoployplexes was also evaluated in the C26 tumor bearing mice. The results showed no significant toxicity for all designed nanoparticles (NPs) in C/P4. The highest gene expression was observed using lipopolyplex PAMAM-TAT-HA-Liposome in C/P4 (ratio polymer/DNA; w/w). Biodistribution study demonstrated more aggregation of targeted lipopolyplex in tumor cells than other nanoparticles (NPs). It could be concluded that the developed targeted lipopolymeric complex could serve as promising nanotherapeutic system for gene therapy. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Mahboubeh Ebrahimian
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Hashemi
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdi Farzadnia
- Department of Pathology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Cancer Molecular Pathology Research center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Siamak Zarei-Ghanavati
- Department of Ophthalmology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Eye Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bizhan Malaekeh-Nikouei
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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4
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Chen JQ, Tu X, Tang Q, Li K, Xu L, Wang S, Ji M, Li Z, Wu J. Efficient access to aliphatic esters by photocatalyzed alkoxycarbonylation of alkenes with alkyloxalyl chlorides. Nat Commun 2021; 12:5328. [PMID: 34493725 PMCID: PMC8423752 DOI: 10.1038/s41467-021-25628-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 08/19/2021] [Indexed: 11/17/2022] Open
Abstract
Aliphatic esters are essential constituents of biologically active compounds and versatile chemical intermediates for the synthesis of drugs. However, their preparation from readily available olefins remains challenging. Here, we report a strategy to access aliphatic esters from olefins through a photocatalyzed alkoxycarbonylation reaction. Alkyloxalyl chlorides, generated in situ from the corresponding alcohols and oxalyl chloride, are engaged as alkoxycarbonyl radical fragments under photoredox catalysis. This transformation tolerates a broad scope of electron-rich and electron-deficient olefins and provides the corresponding β-chloro esters in good yields. Additionally, a formal β-selective alkene alkoxycarbonylation is developed. Moreover, a variety of oxindole-3-acetates and furoindolines are prepared in good to excellent yields. A more concise formal synthesis of (±)-physovenine is accomplished as well. With these strategies, a wide range of natural-product-derived olefins and alkyloxalyl chlorides are also successfully employed. Aliphatic esters are essential constituents of biologically active compounds but their preparation from readily available olefins remains challenging. Here the authors show a strategy to access aliphatic esters from olefins through a unique photocatalyzed alkoxycarbonylation reaction.
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Affiliation(s)
- Jian-Qiang Chen
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China.
| | - Xiaodong Tu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China
| | - Qi Tang
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China
| | - Ke Li
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China
| | - Liang Xu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China
| | - Siyu Wang
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China
| | - Mingjuan Ji
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China
| | - Zhiming Li
- Department of Chemistry, Fudan University, Shanghai, China.
| | - Jie Wu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou, China. .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China. .,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, China.
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5
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de la Fuente IF, Sawant SS, Tolentino MQ, Corrigan PM, Rouge JL. Viral Mimicry as a Design Template for Nucleic Acid Nanocarriers. Front Chem 2021; 9:613209. [PMID: 33777893 PMCID: PMC7987652 DOI: 10.3389/fchem.2021.613209] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 01/06/2021] [Indexed: 12/11/2022] Open
Abstract
Therapeutic nucleic acids hold immense potential in combating undruggable, gene-based diseases owing to their high programmability and relative ease of synthesis. While the delivery of this class of therapeutics has successfully entered the clinical setting, extrahepatic targeting, endosomal escape efficiency, and subcellular localization. On the other hand, viruses serve as natural carriers of nucleic acids and have acquired a plethora of structures and mechanisms that confer remarkable transfection efficiency. Thus, understanding the structure and mechanism of viruses can guide the design of synthetic nucleic acid vectors. This review revisits relevant structural and mechanistic features of viruses as design considerations for efficient nucleic acid delivery systems. This article explores how viral ligand display and a metastable structure are central to the molecular mechanisms of attachment, entry, and viral genome release. For comparison, accounted for are details on the design and intracellular fate of existing nucleic acid carriers and nanostructures that share similar and essential features to viruses. The review, thus, highlights unifying themes of viruses and nucleic acid delivery systems such as genome protection, target specificity, and controlled release. Sophisticated viral mechanisms that are yet to be exploited in oligonucleotide delivery are also identified as they could further the development of next-generation nonviral nucleic acid vectors.
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Affiliation(s)
| | | | | | | | - Jessica L. Rouge
- Department of Chemistry, University of Connecticut, Storrs, CT, United States
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Wang Y, Bruggeman KF, Franks S, Gautam V, Hodgetts SI, Harvey AR, Williams RJ, Nisbet DR. Is Viral Vector Gene Delivery More Effective Using Biomaterials? Adv Healthc Mater 2021; 10:e2001238. [PMID: 33191667 DOI: 10.1002/adhm.202001238] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/03/2020] [Indexed: 12/16/2022]
Abstract
Gene delivery has been extensively investigated for introducing foreign genetic material into cells to promote expression of therapeutic proteins or to silence relevant genes. This approach can regulate genetic or epigenetic disorders, offering an attractive alternative to pharmacological therapy or invasive protein delivery options. However, the exciting potential of viral gene therapy has yet to be fully realized, with a number of clinical trials failing to deliver optimal therapeutic outcomes. Reasons for this include difficulty in achieving localized delivery, and subsequently lower efficacy at the target site, as well as poor or inconsistent transduction efficiency. Thus, ongoing efforts are focused on improving local viral delivery and enhancing its efficiency. Recently, biomaterials have been exploited as an option for more controlled, targeted and programmable gene delivery. There is a growing body of literature demonstrating the efficacy of biomaterials and their potential advantages over other delivery strategies. This review explores current limitations of gene delivery and the progress of biomaterial-mediated gene delivery. The combination of biomaterials and gene vectors holds the potential to surmount major challenges, including the uncontrolled release of viral vectors with random delivery duration, poorly localized viral delivery with associated off-target effects, limited viral tropism, and immune safety concerns.
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Affiliation(s)
- Yi Wang
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Kiara F. Bruggeman
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Stephanie Franks
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Vini Gautam
- Department of Biomedical Engineering The University of Melbourne Melbourne Victoria 3010 Australia
| | - Stuart I. Hodgetts
- School of Human Sciences The University of Western Australia Perth WA 6009 Australia
- Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Alan R. Harvey
- School of Human Sciences The University of Western Australia Perth WA 6009 Australia
- Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Richard J. Williams
- The Institute for Mental and Physical Health and Clinical Translation (IMPACT) School of Medicine Deakin University Waurn Ponds VIC 3216 Australia
- Biofab3D St. Vincent's Hospital Fitzroy 3065 Australia
| | - David R. Nisbet
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
- Biofab3D St. Vincent's Hospital Fitzroy 3065 Australia
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7
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Ullah A, Chen G, Hussain A, Khan H, Abbas A, Zhou Z, Shafiq M, Ahmad S, Ali U, Usman M, Raza F, Ahmed A, Qiu Z, Zheng M, Liu D. Cyclam-Modified Polyethyleneimine for Simultaneous TGFβ siRNA Delivery and CXCR4 Inhibition for the Treatment of CCl 4-Induced Liver Fibrosis. Int J Nanomedicine 2021; 16:4451-4470. [PMID: 34234436 PMCID: PMC8257077 DOI: 10.2147/ijn.s314367] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/01/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Liver fibrosis is a chronic liver disease with excessive production of extracellular matrix proteins, leading to cirrhosis, hepatocellular carcinoma, and death. PURPOSE This study aimed at the development of a novel derivative of polyethyleneimine (PEI) that can effectively deliver transforming growth factor β (TGFβ) siRNA and inhibit chemokine receptor 4 (CXCR4) for TGFβ silencing and CXCR4 Inhibition, respectively, to treat CCl4-induced liver fibrosis in a mouse model. METHODS Cyclam-modified PEI (PEI-Cyclam) was synthesized by incorporating cyclam moiety into PEI by nucleophilic substitution reaction. Gel electrophoresis confirmed the PEI-Cyclam polyplex formation and stability against RNAase and serum degradation. Transmission electron microscopy and zeta sizer were employed for the morphology, particle size, and zeta potential, respectively. The gene silencing and CXCR4 targeting abilities of PEI-Cyclam polyplex were evaluated by luciferase and CXCR4 redistribution assays, respectively. The histological and immunohistochemical staining determined the anti-fibrotic activity of PEI-Cyclam polyplex. The TGFβ silencing of PEI-Cyclam polyplex was authenticated by Western blotting. RESULTS The 1H NMR of PEI-Cyclam exhibited successful incorporation of cyclam content onto PEI. The PEI-Cyclam polyplex displayed spherical morphology, positive surface charge, and stability against RNAse and serum degradation. Cyclam modification decreased the cytotoxicity and demonstrated CXCR4 antagonistic and luciferase gene silencing efficiency. PEI-Cyclam/siTGFβ polyplexes decreased inflammation, collagen deposition, apoptosis, and cell proliferation, thus ameliorating liver fibrosis. Also, PEI-Cyclam/siTGFβ polyplex significantly downregulated α-smooth muscle actin, TGFβ, and collagen type III. CONCLUSION Our findings validate the feasibility of using PEI-Cyclam as a siRNA delivery vector for simultaneous TGFβ siRNA delivery and CXCR4 inhibition for the combined anti-fibrotic effects in a setting of CCl4-induced liver fibrosis.
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Affiliation(s)
- Aftab Ullah
- Department of Pharmacy, Shantou University Medical College, Shantou, 515041, Guangdong, People’s Republic of China
- Correspondence: Aftab Ullah; Daojun Liu Email ;
| | - Gang Chen
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, People’s Republic of China
| | - Abid Hussain
- School of Life Science, Key Laboratory of Molecular Medicine and Biotherapy, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China
- Chinese Academy of Sciences (CAS) Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, Beijing, 100190, People's Republic of China
| | - Hanif Khan
- Department of Pharmacy, Shantou University Medical College, Shantou, 515041, Guangdong, People’s Republic of China
| | - Azar Abbas
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210028, Jiangsu, People’s Republic of China
| | - Zhanwei Zhou
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210028, Jiangsu, People’s Republic of China
| | - Muhammad Shafiq
- Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, people's Republic of China
| | - Saleem Ahmad
- Department of Medicine, Shantou University Medical College Cancer Hospital, Shantou, People’s Republic of China
| | - Usman Ali
- School of Pharmacy, Shanghai Jiaotong University, Shanghai, 200240, Shanghai, People’s Republic of China
| | - Muhammad Usman
- Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, Guangdong, 515041, people's Republic of China
| | - Faisal Raza
- School of Pharmacy, Shanghai Jiaotong University, Shanghai, 200240, Shanghai, People’s Republic of China
| | - Abrar Ahmed
- School of Pharmacy, Shanghai Jiaotong University, Shanghai, 200240, Shanghai, People’s Republic of China
| | - Zijie Qiu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 210028, Jiangsu, People’s Republic of China
| | - Maochao Zheng
- Department of Pharmacy, Shantou University Medical College, Shantou, 515041, Guangdong, People’s Republic of China
| | - Daojun Liu
- Department of Pharmacy, Shantou University Medical College, Shantou, 515041, Guangdong, People’s Republic of China
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Ray L. Synergistic anticancer activity by co-delivered nanosized dual therapeutic agents and siRNA in colon cancer. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Sako M, Song F, Okamoto A, Koide H, Dewa T, Oku N, Asai T. Key determinants of siRNA delivery mediated by unique pH-responsive lipid-based liposomes. Int J Pharm 2019; 569:118606. [PMID: 31415879 DOI: 10.1016/j.ijpharm.2019.118606] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 07/21/2019] [Accepted: 08/09/2019] [Indexed: 11/28/2022]
Abstract
Lipid-based nanoparticles, a potential nonviral vector due to their good biocompatibility and biodegradability, have been extensively developed for the delivery of small interfering RNA (siRNA). We designed a unique pH-responsive lipid derivative, a dioleylphosphate-diethylenetriamine conjugate (DOP-DETA). DOP-DETA consists of a pH-responsive triamine and unsaturated fatty acids that accelerate membrane fusion. Our results showed that DOP-DETA-based liposomes (DL) efficiently delivered siRNA into the cytoplasm and induced RNA interference even at a low siRNA concentration. The knockdown efficiency of DL depended on the molar ratio of total DL lipids to siRNA. When siRNA was formulated with a sufficient amount of DL, it was efficiently taken up by cells and induced effective gene silencing. Time-lapse imaging showed that siRNA transfected with DL was rapidly internalized into the cells and uniformly dispersed in the cytoplasm within a few minites. The results also showed that DL induced sufficient change in surface charge to allow it to interact with the cell membrane and to allow for rapid endosomal escape. Uptake pathway and time-lapse imaging studies revealed that siRNA was delivered by DL into the cytoplasm, possibly through both macropinocytosis and membrane fusion. The present results emphasize that the modulation of surface charge on nanoparticles is crucial for each siRNA delivery process. Our results also suggest that DL is a potentially useful vector for inducing gene silencing with low-doses of siRNA.
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Affiliation(s)
- Mariko Sako
- Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Furan Song
- Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Ayaka Okamoto
- Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroyuki Koide
- Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takehisa Dewa
- Department of Life and Materials Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Naoto Oku
- Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan; Laboratory of Biomedical and Analytical Sciences, Faculty of Pharma Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan
| | - Tomohiro Asai
- Department of Medical Biochemistry, University of Shizuoka School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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Bansod SD, Bawaskar M, Shende S, Gade A, Rai M. Novel nanoplex-mediated plant transformation approach. IET Nanobiotechnol 2019; 13:609-616. [PMID: 31432794 PMCID: PMC8676528 DOI: 10.1049/iet-nbt.2018.5283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 02/26/2019] [Accepted: 05/17/2019] [Indexed: 11/19/2022] Open
Abstract
Here, a rapid and easy transformation by electroporation technique for gene transfer in plants using cell penetrating amino nanocomplex (nanoplex) has been demonstrated in Nicotiana. Nanoplex was prepared using cell penetrating amino acids (CPAs) such as poly-L-lysine (PLL) and Argenine (Arg), in combination with the gold nanoparticles (AuNPs). PLLs-modified nanoplex with zeta potential of 34.2 ± 1.22 mV charge showed 63.3% efficiency for gene transformation in plant cells as compared to 60% when modified with Arg and the zeta potential was found to be 30.0 ± 0.83 mV; whereas, the transformation efficiency without nanoplex was found to be 6.6%. The findings indicate that the zeta potential of positively charged nanocomplex (AuNPs/CPAs/DNA/CPAs) increases the transformation efficiency because of their ability to protect the DNA from electroporation wave and endogenous enzyme damage. Transformation was confirmed by GUS assay and amplification of npt gene. This technique may open up new possibilities of gene transfer in plants, which will enable to produce large number of transgenic plants.
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Affiliation(s)
- Sunita D Bansod
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati - 444602, Maharashtra, India
| | - Manisha Bawaskar
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati - 444602, Maharashtra, India
| | - Sudhir Shende
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati - 444602, Maharashtra, India
| | - Aniket Gade
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati - 444602, Maharashtra, India
| | - Mahendra Rai
- Nanobiotechnology Laboratory, Department of Biotechnology, Sant Gadge Baba Amravati University, Amravati - 444602, Maharashtra, India.
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Glackin CA. Nanoparticle Delivery of TWIST Small Interfering RNA and Anticancer Drugs: A Therapeutic Approach for Combating Cancer. Enzymes 2018; 44:83-101. [PMID: 30360816 DOI: 10.1016/bs.enz.2018.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Breast and ovarian cancer are the leading cause of cancer-related deaths in women in the United States with over 232,000 new Breast Cancer (BC) diagnoses expected in 2018 and almost 40,000 deaths and an estimated 239,000 new ovarian cancer (OC) cases and 152,000 deaths worldwide annually. OC is the most lethal gynecologic malignancy. This high mortality rate is due to tumor recurrence and metastasis, primarily caused by chemoresistant cancer stem-like cells (CSCs). Triple Negative Breast Cancer (TNBC) patients also become resistant to chemotherapy due to recurrence of CSCs. Currently, no ovarian or breast cancer therapies target CSC specifically. TWIST is overexpressed in the majority of chemoresistant cancers resulting in a low survival rate. Our long-term goal is to develop novel treatments for women with ovarian and breast cancer, specifically treatments that sensitize chemoresistant tumors. Despite successful initial surgery and chemotherapy, over 70% of advanced EOC will recur, and only 15-30% of recurrent disease will respond to chemotherapy (Cortez et al., 2017; Berezhnaya, 2010; Jackson et al., 2015). Moreover, drug resistance causes treatment failure in over 90% of patients with metastatic disease (Solmaz et al., 2015). Thus, recurrent metastatic disease is a major clinical challenge without effective therapy. One of the major challenges in the treatment of breast cancer is the presence of a subpopulation of cancer cells that are chemoresistant (CRC) and metastatic. Given that metastasis is the driving force behind mortality for breast and ovarian cancer patients, it is essential to identify the characteristics of these aberrant cancer cells that allow them to spread to distant sites in the body and develop into metastatic tumors. Understanding the metastatic mechanisms driving cancer cell dispersal will open the door to developing novel therapies that prevent metastasis and improve long-term outcomes for patients. In this chapter we assess the feasibility of targeting the Twist and EMT signaling pathways in breast and ovarian cancer. Additional discussions of the pathways that mediate epithelial-mesenchymal transition (EMT), a process that can give rise to chemoresistance. We review potential treatment strategies for targeting EMT and drug resistance as well as the problems that may arise with these targeted delivery therapeutic approaches. Finally, we examine recent advances in the field, including cancer stem cell targeted nanoparticle delivery and small interference RNA (siRNA) technology, and discuss the impact that these approaches may have on translating much needed therapeutic approaches into the clinic, for the benefit of patients battling this devastating disease.
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Affiliation(s)
- Carlotta A Glackin
- Developmental and Stem Cell Biology, City of Hope Medical Center, Duarte, CA, United States.
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12
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Zhou Y, Quan G, Wu Q, Zhang X, Niu B, Wu B, Huang Y, Pan X, Wu C. Mesoporous silica nanoparticles for drug and gene delivery. Acta Pharm Sin B 2018; 8:165-177. [PMID: 29719777 PMCID: PMC5926503 DOI: 10.1016/j.apsb.2018.01.007] [Citation(s) in RCA: 379] [Impact Index Per Article: 63.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/26/2017] [Accepted: 01/22/2018] [Indexed: 01/05/2023] Open
Abstract
Mesoporous silica nanoparticles (MSNs) are attracting increasing interest for potential biomedical applications. With tailored mesoporous structure, huge surface area and pore volume, selective surface functionality, as well as morphology control, MSNs exhibit high loading capacity for therapeutic agents and controlled release properties if modified with stimuli-responsive groups, polymers or proteins. In this review article, the applications of MSNs in pharmaceutics to improve drug bioavailability, reduce drug toxicity, and deliver with cellular targetability are summarized. Particularly, the exciting progress in the development of MSNs-based effective delivery systems for poorly soluble drugs, anticancer agents, and therapeutic genes are highlighted.
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Key Words
- AO, acridine orange
- APTES, 3-aminopropyltriethoxysilane
- APTMS, amino propyl trimethoxysilane
- BCL-2, B-cell lymphoma-2
- BCS, Biopharmaceutical Classification System
- Bio-TEM, biological transmission electron microscopy
- C dots, Cornell dots
- CMC, critical micelle concentration
- CPT, camptothecin
- CTAB, cetyltrimethyl ammonium bromide
- Cancer therapy
- EPR, enhanced permeability and retention
- FDA, Food and Drug Administration
- GI, gastrointestinal
- GNRs@mSiO2, mesoporous silica-encapsulated gold nanorods
- Gene delivery
- LHRH, luteinising-hormone releasing hormone
- MDR, multi-drug resistance
- MRP1, multidrug resistance protein 1
- MSN-Dox-G2, Dox-loaded and G2 PAMAM-modified MSNs
- MSNs, mesoporous silica nanoparticles
- MSNs-HA, hyaluronic acid-conjugated MSNs
- MSNs-RGD/TAT, RGD/TAT peptide-modified MSNs
- MSNs-TAT, TAT peptide-modified MSNs
- MSNs@PDA-PEG-FA, poly(ethylene glycol)-folic acid-functionalized polydopamine-modified MSNs
- MTT, 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide
- Mesoporous silica nanoparticles
- Multidrug resistance
- NIR, near-infrared
- P-gp, P-glycoprotein
- PAMAM, polyamidoamine
- PDEAEMA, poly (2-(diethylamino)ethylmethacrylate)
- PDMAEMA, poly(2-(dimethylamino)ethylmethacrylate)
- PEG400, polyethylene glycol 400
- PEI, polyethyleneimine
- PLL, poly-l-lysine
- PTX, paclitaxel
- Poorly soluble drug
- Q-MSNs, quercetin encapsulated MSNs
- RGD, arginine-glycine-aspartate
- TAT, trans-activating transcriptor
- TMB, 1,3,5-trimethybenzene
- pDNA, plasmid DNA
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Sun M, Wang K, Oupický D. Advances in Stimulus-Responsive Polymeric Materials for Systemic Delivery of Nucleic Acids. Adv Healthc Mater 2018; 7:10.1002/adhm.201701070. [PMID: 29227047 PMCID: PMC5821579 DOI: 10.1002/adhm.201701070] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 10/13/2017] [Indexed: 01/02/2023]
Abstract
Polymeric materials that respond to a variety of endogenous and external stimuli are actively developed to overcome the main barriers to successful systemic delivery of therapeutic nucleic acids. Here, an overview of viable stimuli that are proved to improve systemic delivery of nucleic acids is provided. The main focus is placed on nucleic acid delivery systems (NADS) based on polymers that respond to pathological or physiological changes in pH, redox state, enzyme levels, hypoxia, and reactive oxygen species levels. Additional discussion is focused on NADS suitable for applications that use external stimuli, such as light, ultrasound, and local hyperthermia.
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Affiliation(s)
- Minjie Sun
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - Kaikai Wang
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
| | - David Oupický
- State Key Laboratory of Natural Medicines, Key Laboratory on Protein Chemistry and Structural Biology, Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, P.R. China
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, United States
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14
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Zhou Y, Yu F, Zhang F, Chen G, Wang K, Sun M, Li J, Oupický D. Cyclam-Modified PEI for Combined VEGF siRNA Silencing and CXCR4 Inhibition To Treat Metastatic Breast Cancer. Biomacromolecules 2018; 19:392-401. [PMID: 29350899 DOI: 10.1021/acs.biomac.7b01487] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Chemokine receptor CXCR4 plays an important role in cancer cell invasion and metastasis. Recent findings suggest that anti-VEGF therapies upregulate CXCR4 expression, which contributes to resistance to antiangiogenic therapies. Here, we report the development of novel derivatives of polyethylenimine (PEI) that effectively inhibit CXCR4 while delivering anti-VEGF siRNA. PEI was alkylated with different amounts of a CXCR4-binding cyclam derivative to prepare PEI-C. Modification with the cyclam derivatives resulted in a considerable decrease in cytotoxicity when compared with unmodified PEI. All the PEI-C showed significant CXCR4 antagonism and the ability to inhibit cancer cell invasion. Polyplexes of PEI-C prepared with siVEGF showed effective silencing of the VEGF expression in vitro. In vivo testing in a syngeneic breast cancer model showed promising antitumor and antimetastatic activity of the PEI-C/siVEGF polyplexes. Our data demonstrate the feasibility of using PEI-C as a carrier for simultaneous VEGF silencing and CXCR4 inhibition for enhanced antiangiogenic cancer therapies.
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Affiliation(s)
- Yiwen Zhou
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University , Nanjing, 210009, China
| | - Fei Yu
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha Nebraska 68198, United States
| | - Feiran Zhang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University , Nanjing, 210009, China
| | - Gang Chen
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University , Nanjing, 210009, China
| | - Kaikai Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University , Nanjing, 210009, China
| | - Minjie Sun
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University , Nanjing, 210009, China
| | - Jing Li
- Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha Nebraska 68198, United States
| | - David Oupický
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, China Pharmaceutical University , Nanjing, 210009, China.,Center for Drug Delivery and Nanomedicine, Department of Pharmaceutical Sciences, University of Nebraska Medical Center , Omaha Nebraska 68198, United States
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15
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Zhang X, Zhang J, Quan G, Yang P, Pan X, Wu C. The Serum-Resistant Transfection Evaluation and Long-Term Stability of Gene Delivery Dry Powder Based on Mesoporous Silica Nanoparticles and Polyethyleneimine by Freezing-Drying. AAPS PharmSciTech 2017; 18:1536-1543. [PMID: 27600322 DOI: 10.1208/s12249-016-0617-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 08/11/2016] [Indexed: 11/30/2022] Open
Abstract
Mesoporous silica nanoparticles (MSNs) with large surface area, tunable pore size, and low toxicity can act as suitable vehicles for drug and gene delivery. An MSN/DNA/PEI complex delivery system was prepared by using MSNs to hold plasmid DNA coated with polyethyleneimine (PEI), and the dry powder formulation was produced by freeze-drying with trehalose as lyoprotectant. The MSN/DNA/PEI complexes successfully enhanced the gene expression with about 1.5-fold higher efficiency as compared with the control, and even better effects and lower toxicity were achieved at lower content of PEI. Also, this gene delivery system showed nearly sixfold higher efficiency in the serum-containing condition than the control, so further application of these vehicles in vivo is highly appreciated. Besides, the trehalose containing lyophilized formulation could hold the availability for at least 4 months of storing at room temperature, presenting the potential for industrial production and transportation of gene therapy.
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16
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Imam ZI, Kenyon LE, Ashby G, Nagib F, Mendicino M, Zhao C, Gadok AK, Stachowiak JC. Phase-Separated Liposomes Enhance the Efficiency of Macromolecular Delivery to the Cellular Cytoplasm. Cell Mol Bioeng 2017; 10:387-403. [PMID: 29104698 DOI: 10.1007/s12195-017-0489-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION From viruses to organelles, fusion of biological membranes is used by diverse biological systems to deliver macromolecules across membrane barriers. Membrane fusion is also a potentially efficient mechanism for the delivery of macromolecular therapeutics to the cellular cytoplasm. However, a key shortcoming of existing fusogenic liposomal systems is that they are inefficient, requiring a high concentration of fusion-promoting lipids in order to cross cellular membrane barriers. OBJECTIVES Toward addressing this limitation, our experiments explore the extent to which membrane fusion can be amplified by using the process of lipid membrane phase separation to concentrate fusion-promoting lipids within distinct regions of the membrane surface. METHODS We used confocal fluorescence microscopy to investigate the integration of fusion-promoting lipids into a ternary lipid membrane system that separated into liquid-ordered and liquid-disordered membrane phases. Additionally, we quantified the impact of membrane phase separation on the efficiency with which liposomes transferred lipids and encapsulated macromolecules to cells, using a combination of confocal fluorescence imaging and flow cytometry. RESULTS Here we report that concentrating fusion-promoting lipids within phase-separated lipid domains on the surfaces of liposomes significantly increases the efficiency of liposome fusion with model membranes and cells. In particular, membrane phase separation enhanced the delivery of lipids and model macromolecules to the cytoplasm of tumor cells by at least 4-fold in comparison to homogenous liposomes. CONCLUSIONS Our findings demonstrate that phase separation can enhance membrane fusion by locally concentrating fusion-promoting lipids on the surface of liposomes. This work represents the first application of lipid membrane phase separation in the design of biomaterials-based delivery systems. Additionally, these results lay the ground work for developing fusogenic liposomes that are triggered by physical and molecular cues associated with target cells.
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Affiliation(s)
- Zachary I Imam
- The University of Texas at Austin, Department of Biomedical Engineering
| | - Laura E Kenyon
- The University of Texas at Austin, Department of Biomedical Engineering
| | - Grant Ashby
- The University of Texas at Austin, Department of Biomedical Engineering
| | - Fatema Nagib
- The University of Texas at Austin, Department of Biomedical Engineering
| | - Morgan Mendicino
- The University of Texas at Austin, Department of Biomedical Engineering
| | - Chi Zhao
- The University of Texas at Austin, Department of Biomedical Engineering
| | - Avinash K Gadok
- The University of Texas at Austin, Department of Biomedical Engineering
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Oku N. Innovations in Liposomal DDS Technology and Its Application for the Treatment of Various Diseases. Biol Pharm Bull 2017; 40:119-127. [PMID: 28154249 DOI: 10.1248/bpb.b16-00857] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Liposomes have been widely used as drug carriers in the field of drug delivery systems (DDS), and they are thought to be ideal nano-capsules for targeting DDS after being injected into the bloodstream. In general, DDS drugs meet the needs of aged and super-aged societies, since the administration route of drugs can be changed, the medication frequency reduced, the adverse effects of drugs suppressed, and so on. In fact, a number of liposomal drugs have been launched and used worldwide including liposomal anticancer drugs, and these drugs have appeared on the market owing to various innovations in liposomal DDS technologies. The accumulation of long-circulating liposomes in cancer tissue is driven by the enhanced permeability and retention (EPR) effect. In this review, liposome-based targeting DDS for cancer therapy is briefly discussed. Since cancer angiogenic vessels are the ideal target of drug carriers after their injection and are critical for cancer growth, damaging of these neovessels has been an approach for eradicating cancer cells. Also, the usage of liposomal DDS for the treatment of ischemic stroke is possible, since we observed that PEGylated liposomes accumulate in the site of cerebral ischemia in transient middle cerebral artery occlusion (t-MCAO) model rats. Interestingly, liposomes carrying neuroprotectants partly suppress ischemia/reperfusion injury of these model rats, suggesting that the EPR effect also works in ischemic diseases by causing an increase in the permeability of the blood vessel endothelium. The potential of liposomal DDS against life-threatening diseases might thus be attractive for supporting long-lived societies.
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Affiliation(s)
- Naoto Oku
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
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18
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Bus T, Englert C, Reifarth M, Borchers P, Hartlieb M, Vollrath A, Hoeppener S, Traeger A, Schubert US. 3rd generation poly(ethylene imine)s for gene delivery. J Mater Chem B 2017; 5:1258-1274. [DOI: 10.1039/c6tb02592g] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this study, a series of high molar mass poly(2-oxazoline)-based copolymers was synthesized, introducing 2-ethyl-2-oxazoline, ethylene imine, and primary amine bearing monomer units representing a new generation of PEI.
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Affiliation(s)
- Tanja Bus
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Christoph Englert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Martin Reifarth
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Philipp Borchers
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Matthias Hartlieb
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Antje Vollrath
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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Cationic microRNA-delivering nanocarriers for efficient treatment of colon carcinoma in xenograft model. Gene Ther 2016; 23:829-838. [PMID: 27482839 DOI: 10.1038/gt.2016.60] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/19/2016] [Accepted: 07/11/2016] [Indexed: 12/21/2022]
Abstract
Manipulation of tumor microRNAs (miRNAs) may offer novel avenues for treatment of cancer. However, development of safe, robust, non-viral delivery methods remains a main challenge to obtain the promise of gene therapy. The miR-145 is dysregulated in many cancers, including colon carcer, and further in vitro investigation established antiproliferative and proapoptotic roles of miR-145. Herein, we study a PLGA/PEI (poly (d, l-lactide-co-glycolide)/polyethylenimine)-mediated miRNA vector delivery system; the validation of the method was carried out using a colon cancer xenograft model with miR-145 vector encoding for the expression of miR-145 (pDNA). First, high-molecular-weight PEI (25000 Da) was conjugated with cetyl to formulate reducible cetylated PEI (PEI-cet), and then PEI-cet was introduced to PLGA suspension. Next, PLGA/PEI-cet was crosslinked with hyaluronic acid (HA) to facilitate cellular uptake of miRNA plasmid vector via HA receptor-mediated endocytosis. After local administration of PLGA/PEI/HA complexes, intact miRNA plasmid vectors were delivered into HCT-116 colon cancer cells and xenograft tumor-bearing mice, and significant antitumor effects were achieved. The results show that the HA-based miR-145 nanocarrier could efficiently facilitate cellular uptake and significantly enhance miR-145 expression in HCT-116 cells. Consequently, the increased miR-145 induced G1 cell cycle arrest, reduced tumor proliferation and increased apoptosis, inhibited HCT-116 cell migration and suppressed c-MYC expressions, a regulatory target of miR-145. Of particular importance is the significant decrease in tumor growth in the mice model of colon cancer with the targeting miR-145 delivery system. The results in this work show that miR-145 has been effectively delivered to colon carcinomas through a PLGA/PEI/HA vehicle, indicating a promising miRNA replacement therapy strategy.
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20
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Nam K, Jung S, Nam JP, Kim SW. Poly(ethylenimine) conjugated bioreducible dendrimer for efficient gene delivery. J Control Release 2015; 220:447-455. [PMID: 26551343 DOI: 10.1016/j.jconrel.2015.11.005] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 10/26/2015] [Accepted: 11/05/2015] [Indexed: 11/30/2022]
Abstract
Branched poly(ethylenimine) (PEI) 25 kDa is an efficient gene delivery vector with outstanding gene condensation ability and great endosome escape activity. However, it also induces higher cytotoxicity. Transfection efficiency and toxicity of PEI are highly dependent upon their molecular weight and structure. We developed a bioreducible poly(ethylenimine) (PEI (-s-s-)) derived from low molecular weight PEI (1.8 kDa) for efficient gene delivery. Bioreducible core molecule is expected to increase molecular weight and reduce the cytotoxicity of the copolymer. PEI (-s-s-) polyplexes showed higher transfection efficiency and lower cytotoxicity compared to branched PEI 25 kDa, Lipofectamine® 2000 and, FuGENE® 6. In addition, PEI (-s-s-) derivative (16 kDa) formed stable polyplexes with a zeta-potential value of +34 mV and polyplex size of 61 nm. PEI (-s-s-) derivative (16 kDa) showed excellent transfection efficiency: 3.6 times higher than branched PEI 25 kDa in HeLa cells and 7.4 times higher than Lipofectamine® 2000 in H9C2 cell. The derivatives also showed lower cytotoxicity compared with Lipofectamine® 2000 and PEI 25 kDa in various cell types. In addition, newly synthesized PEI (-s-s-) derivatives have high reproducibility.
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Affiliation(s)
- Kihoon Nam
- Center for Controlled Chemical Delivery, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Simhyun Jung
- Center for Controlled Chemical Delivery, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Joung-Pyo Nam
- Center for Controlled Chemical Delivery, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA
| | - Sung Wan Kim
- Center for Controlled Chemical Delivery, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT 84112, USA.
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21
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Finlay J, Roberts CM, Dong J, Zink JI, Tamanoi F, Glackin CA. Mesoporous silica nanoparticle delivery of chemically modified siRNA against TWIST1 leads to reduced tumor burden. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1657-66. [PMID: 26115637 DOI: 10.1016/j.nano.2015.05.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 05/18/2015] [Accepted: 05/30/2015] [Indexed: 02/07/2023]
Abstract
UNLABELLED Growth and progression of solid tumors depend on the integration of multiple pro-growth and survival signals, including the induction of angiogenesis. TWIST1 is a transcription factor whose reactivation in tumors leads to epithelial to mesenchymal transition (EMT), including increased cancer cell stemness, survival, and invasiveness. Additionally, TWIST1 drives angiogenesis via activation of IL-8 and CCL2, independent of VEGF signaling. In this work, results suggest that chemically modified siRNA against TWIST1 reverses EMT both in vitro and in vivo. siRNA delivery with a polyethyleneimine-coated mesoporous silica nanoparticle (MSN) led to reduction of TWIST1 target genes and migratory potential in vitro. In mice bearing xenograft tumors, weekly intravenous injections of the siRNA-nanoparticle complexes resulted in decreased tumor burden together with a loss of CCL2 suggesting a possible anti-angiogenic response. Therapeutic use of TWIST1 siRNA delivered via MSNs has the potential to inhibit tumor growth and progression in many solid tumor types. FROM THE CLINICAL EDITOR Tumor progression and metastasis eventually lead to patient mortality in the clinical setting. In other studies, it has been found that TWIST1, a transcription factor, if reactivated in tumors, would lead to downstream events including angiogenesis and result in poor prognosis in cancer patients. In this article, the authors were able to show that when siRNA against TWIST1 was delivered via mesoporous silica nanoparticle, there was tumor reduction in an in-vivo model. The results have opened up a new avenue for further research in this field.
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Affiliation(s)
- James Finlay
- Division of Comparative Medicine and, Irell & Manella Graduate School of Biological Sciences, City of Hope, Beckman Research Institute, Duarte, CA, USA.
| | - Cai M Roberts
- Irell & Manella Graduate School of Biological Sciences, City of Hope, Beckman Research Institute, Duarte, CA, USA.
| | - Juyao Dong
- Department of Chemistry and Biochemistry, Jonsson Comprehensive Cancer Center, California NanoSystems Institute, University of California Los Angeles, Los Angeles, CA, USA.
| | - Jeffrey I Zink
- Department of Chemistry and Biochemistry, Jonsson Comprehensive Cancer Center, California NanoSystems Institute, University of California Los Angeles, Los Angeles, CA, USA.
| | - Fuyuhiko Tamanoi
- Department of Microbiology Immunology and Molecular Genetics, Jonsson Comprehensive Cancer Center, California NanoSystems Institute, University of California Los Angeles, Los Angeles, CA, USA.
| | - Carlotta A Glackin
- Department of Neurosciences, City of Hope, Beckman Research Institute, Duarte, CA, USA.
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22
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Zhang P, Wang TY, Xiong HM, Kong JL. In situ tracking the intracellular delivery of antisense oligonucleotides by fluorescein doped silica nanoparticles. Talanta 2014; 127:43-50. [PMID: 24913855 DOI: 10.1016/j.talanta.2014.03.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/15/2014] [Accepted: 03/18/2014] [Indexed: 12/18/2022]
Abstract
Antisense oligonucleotides (ASOs) are often utilized to interfere with gene expression at mRNA level for cancer treatment. Here, we synthesized fluorescein doped silica nanoparticles (FSNPs) and coated them by polyethyleneimine (PEI) for carrying ASOs. Agarose gel electrophoresis proved that PEI/FSNPs could load ASOs by a weight ratio as high as 30:1. We tracked the delivery process of ASOs from the ASOs/PEI/FSNPs composites to HeLa cells in situ by the confocal laser scanning microscopy (CLSM) techniques, including nuclear staining and Z-axis scanning. We found the ASOs/PEI/FSNPs composites exhibited their biological effects at specific intracellular localization, and the fluorescence of the FSNPs showed the dynamic delivery process in the cells.
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Affiliation(s)
- Peng Zhang
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University, Shanghai 200433, China
| | - Tian-Yi Wang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China
| | - Huan-Ming Xiong
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China.
| | - Ji-Lie Kong
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University, Shanghai 200433, China.
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Battogtokh G, Ko YT. Self-assembling micelle-like nanoparticles with detachable envelopes for enhanced delivery of nucleic acid therapeutics. Mol Pharm 2014; 11:904-12. [PMID: 24446871 DOI: 10.1021/mp400579h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In spite of the great potential of nucleic acids as therapeutic agents, the clinical application of nucleic acid therapeutics requires the development of effective systemic delivery strategies. In an effort to develop effective nucleic acid delivery systems suitable for clinical application, we previously reported a self-assembling micelle-like nanoparticle that was based on phospholipid-polyethylenimine conjugates, i.e., "micelle-like nanoparticles" (MNPs). In this study, we aimed to improve the system by enhancing the efficiency of intracellular delivery of the payload via pH-responsive detachment of the monolayer envelope and release of the nucleic acid therapeutics upon reaching the target tissues with an acidic pH, e.g., tumors. The acid-cleavable phospholipid-polyethylenimine conjugate was synthesized via hydrazone bond, and acid-cleavable MNPs were then prepared and characterized as before. We evaluated the acid-cleavable MNP construct for in vitro and in vivo nucleic acid delivery efficiency using cultured tumor cells and tumor-bearing mice. The acid-cleavable nanocarrier showed an enhanced cellular delivery at pH 6.5 as compared to pH 7.4, whereas the noncleavable nanocarrier did not show any differences. Tail vein injections also led to enhanced intracellular uptake of the acid-cleavable nanocarrier compared to the noncleavable nanocarrier into tumor cells of tumor-bearing mice although no significant difference was observed in total tumor accumulation.
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Parhiz H, Shier WT, Ramezani M. From rationally designed polymeric and peptidic systems to sophisticated gene delivery nano-vectors. Int J Pharm 2013; 457:237-59. [PMID: 24060371 DOI: 10.1016/j.ijpharm.2013.09.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Revised: 08/21/2013] [Accepted: 09/17/2013] [Indexed: 12/12/2022]
Abstract
Lack of safe, efficient and controllable methods for delivering therapeutic genes appears to be the most important factor preventing human gene therapy. Safety issues encountered with viral vectors have prompted substantial attention to in vivo investigations with non-viral vectors throughout the past decade. However, developing non-viral vectors with effectiveness comparable to viral ones has been a challenge. The strategy of designing multifunctional synthetic carriers targeting several extracellular and intracellular barriers in the gene transfer pathway has emerged as a promising approach to improving the efficacy of gene delivery systems. This review will explain how sophisticated synthetic vectors can be created by combining conventional polycationic vectors such as polyethylenimine and basic amino acid peptides with additional polymers and peptides that are designed to overcome potential barriers to the gene delivery process.
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Affiliation(s)
- Hamideh Parhiz
- Pharmaceutical Research Center, Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran
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Parhiz H, Hashemi M, Hatefi A, Shier WT, Amel Farzad S, Ramezani M. Arginine-rich hydrophobic polyethylenimine: potent agent with simple components for nucleic acid delivery. Int J Biol Macromol 2013; 60:18-27. [PMID: 23680600 DOI: 10.1016/j.ijbiomac.2013.05.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 04/08/2013] [Accepted: 05/06/2013] [Indexed: 01/26/2023]
Abstract
Conjugation of various arginine-rich peptide sequences to vectors based on 10 kDa polyethylenimine (PEI) and its hydrophobic derivative (hexanoate-PEI) was investigated as a strategy for improving pDNA and siRNA transfection activities. Six different arginine-histidine (RH) sequences and two arginine-serine (RS) sequences with a range of R/H ratios were designed and coupled to PEI and hexanoate-PEI. All arginine-rich peptide derivatives of PEI significantly enhanced luciferase gene expression compared to PEI 10 kDa alone. Hexanoate-PEI derivatives exhibited higher transfection activity than underivatized PEI vectors. Improved transfection activity may have resulted at least in part from use of higher vector/DNA ratios made possible by reduced cytotoxicity of vectors, and to use of vectors with higher molecular weights. Vectors that were the most efficient in pDNA delivery and transfection were also the most effective in siRNA delivery and protein expression knock down.
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Affiliation(s)
- Hamideh Parhiz
- Pharmaceutical Research Center, School of Pharmacy, Mashhad University of Medical Sciences, P.O. Box 91775-1365, Mashhad, Iran
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Gooding M, Browne LP, Quinteiro FM, Selwood DL. siRNA delivery: from lipids to cell-penetrating peptides and their mimics. Chem Biol Drug Des 2013; 80:787-809. [PMID: 22974319 DOI: 10.1111/cbdd.12052] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
To deliver siRNA for therapeutic use, several hurdles must be addressed. Metabolic degradation must be blocked, and the RNAi cellular machinery is located in the cytoplasm, while double-stranded siRNA is large, highly charged and impermeable to cell membranes. To date, the solutions to the delivery issues have mostly involved different forms of lipid particle encapsulation. Cell-penetrating peptides and their mimics or analogues offer a different approach and this is an emerging field with the first in vivo examples now reported. Recent reports point to lipid receptors being involved in the cellular uptake of both types of transporter. This review examines the delivery of siRNA with a focus on cell-penetrating peptides and their small molecule and oligomeric mimics. The current status of siRNA delivery methods in clinical trials is examined. It now seems that the goal of delivering siRNA therapeutically is achievable but will they form part of a sustainable healthcare portfolio for the future.
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Affiliation(s)
- Matt Gooding
- The Wolfson Institute for Biomedical Research, UCL, Gower Street, London WC1E 6BT, UK
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27
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Wan Q, Xie L, Gao L, Wang Z, Nan X, Lei H, Long X, Chen ZY, He CY, Liu G, Liu X, Qiu B. Self-assembled magnetic theranostic nanoparticles for highly sensitive MRI of minicircle DNA delivery. NANOSCALE 2013; 5:744-752. [PMID: 23224057 DOI: 10.1039/c2nr32438e] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
As a versatile gene vector, minicircle DNA (mcDNA) has a great potential for gene therapy. However, some serious challenges remain, such as to effectively deliver mcDNA into targeted cells/tissues and to non-invasively monitor the delivery of the mcDNA. Superparamagnetic iron oxide (SPIO) nanoparticles have been extensively used for both drug/gene delivery and diagnosis. In this study, an MRI visible gene delivery system was developed with a core of SPIO nanocrystals and a shell of biodegradable stearic acid-modified low molecular weight polyethyleneimine (Stearic-LWPEI) via self-assembly. The Stearic-LWPEI-SPIO nanoparticles possess a controlled clustering structure, narrow size distribution and ultrasensitive imaging capacity. Furthermore, the nanoparticle can effectively bind with mcDNA and protect it from enzymatic degradation. In conclusion, the nanoparticle shows synergistic advantages in the effective transfection of mcDNA and non-invasive MRI of gene delivery.
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Affiliation(s)
- Qian Wan
- Paul C. Lauterbur Research Center for Biomedical Imaging, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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Kenjo E, Asai T, Yonenaga N, Ando H, Ishii T, Hatanaka K, Shimizu K, Urita Y, Dewa T, Nango M, Tsukada H, Oku N. Systemic Delivery of Small Interfering RNA by Use of Targeted Polycation Liposomes for Cancer Therapy. Biol Pharm Bull 2013; 36:287-91. [DOI: 10.1248/bpb.b12-00817] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Eriya Kenjo
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Tomohiro Asai
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Norihito Yonenaga
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Hidenori Ando
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Takayuki Ishii
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Kentaro Hatanaka
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Kosuke Shimizu
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
| | - Yugo Urita
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
| | - Takehisa Dewa
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
| | - Mamoru Nango
- Department of Frontier Materials, Graduate School of Engineering, Nagoya Institute of Technology
| | - Hideo Tsukada
- PET Center, Central Research Laboratory, Hamamatsu Photonics K.K
| | - Naoto Oku
- Department of Medical Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka
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29
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Ando H, Yonenaga N, Asai T, Hatanaka K, Koide H, Tsuzuku T, Harada N, Tsukada H, Oku N. In Vivo Imaging of Liposomal Small Interfering RNA (siRNA) Trafficking by Positron Emission Tomography. YAKUGAKU ZASSHI 2012. [DOI: 10.1248/yakushi.12-00235-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hidenori Ando
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences, University of Shizuoka
| | - Norihito Yonenaga
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences, University of Shizuoka
| | - Tomohiro Asai
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences, University of Shizuoka
| | - Kentaro Hatanaka
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences, University of Shizuoka
| | - Hiroyuki Koide
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences, University of Shizuoka
| | - Takuma Tsuzuku
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences, University of Shizuoka
| | - Norihiro Harada
- PET Center, Central Research Laboratory, Hamamatsu Photonics K.K
| | - Hideo Tsukada
- PET Center, Central Research Laboratory, Hamamatsu Photonics K.K
| | - Naoto Oku
- Department of Medical Biochemistry, Graduate School of Pharmaceutical Sciences, University of Shizuoka
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Xue HY, Narvikar M, Zhao JB, Wong HL. Lipid encapsulation of cationic polymers in hybrid nanocarriers reduces their non-specific toxicity to breast epithelial cells. Pharm Res 2012; 30:572-83. [PMID: 23135818 DOI: 10.1007/s11095-012-0902-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 10/08/2012] [Indexed: 01/08/2023]
Abstract
PURPOSE Clinical application of cationic polymers for delivery of nucleic acids has been limited by their toxicity. The purpose of this study is to evaluate whether the polymer-in-lipid hybrid nanotechnology recently developed for controlled siRNA delivery can tackle this toxicity issue by reducing exposure of the cellular components to free cationic polymers. METHODS Lipid-polymer hybrid nanocarriers (LPNs) encapsulating complexes of hexadecylated polyethylenimine (H-PEI) and biologically inactive siRNA in lipids were prepared at different lipid-polymer ratios. Comparative toxicity of these LPNs and unencapsulated cationic materials on breast epithelial cell lines MDA-MB-231 and MCF-10a was evaluated. RESULTS Even at a low lipid-polymer ratio (3:1 w/w), encapsulation of H-PEI improved its LC(50) values measured within hours by 3-5 fold, and caused less reduction in the colony-formation rates in 10-14 days. The observed reductions in the acute and delayed carrier toxicity were associated with significantly less membrane damages, improved mitochondrial functions, reduced reactive oxidative species production, and lower caspase-3 activity (all p < 0.05) without sacrificing the siRNA transfection efficiency. CONCLUSIONS This study has validated the hybrid nanotechnology for controlled RNA delivery from a toxicological perspective. This is especially valuable if local or long-term RNA therapy is intended for which low carrier toxicity is essential.
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Affiliation(s)
- Hui Yi Xue
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, USA
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31
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Mahor S, Dash BC, O’Connor S, Pandit A. Mannosylated Polyethyleneimine–Hyaluronan Nanohybrids for Targeted Gene Delivery to Macrophage-Like Cell Lines. Bioconjug Chem 2012; 23:1138-48. [DOI: 10.1021/bc200599k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sunil Mahor
- Network of Excellence
for Functional Biomaterials, National University of Ireland, IDA Business Park,
Galway, Ireland
| | - Biraja C. Dash
- Network of Excellence
for Functional Biomaterials, National University of Ireland, IDA Business Park,
Galway, Ireland
| | - Stephen O’Connor
- Network of Excellence
for Functional Biomaterials, National University of Ireland, IDA Business Park,
Galway, Ireland
| | - Abhay Pandit
- Network of Excellence
for Functional Biomaterials, National University of Ireland, IDA Business Park,
Galway, Ireland
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32
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Navarro G, Sawant RR, Biswas S, Essex S, Tros de Ilarduya C, Torchilin VP. P-glycoprotein silencing with siRNA delivered by DOPE-modified PEI overcomes doxorubicin resistance in breast cancer cells. Nanomedicine (Lond) 2012; 7:65-78. [PMID: 22191778 DOI: 10.2217/nnm.11.93] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AIMS Multidrug resistance (MDR) mediated by overexpression of drug efflux transporters such as P-glycoprotein (P-gp), is a major problem, limiting successful chemotherapy of breast cancer. The use of siRNA to inhibit P-gp expression in MDR tumors is an attractive strategy to improve the effectiveness of anticancer drugs. METHOD We have synthesized a novel conjugate between a phospholipid (dioleoylphosphatidylethanolamine) and polyethylenimine (PEI) for siRNA delivery, for the purpose of silencing P-gp to overcome doxorubicin resistance in MCF-7 human breast cancer cells. RESULTS The dioleoylphosphatidylethanolamine-PEI conjugate enhanced the transfection efficacy of low-molecular-weight PEI, which was otherwise totally ineffective. In addition, the polyethylene glycol/lipid coating of the new complexes gave rise to small micelle-like nanoparticles with improved biocompatibility properties. Both coated and noncoated formulations delivered P-gp-specific siRNA to MDR cells. DISCUSSION The combination of doxorubicin and P-gp silencing formulations led to a twofold increase of doxorubicin uptake and a significant improvement of the therapeutic effect of doxorubicin in resistant cells.
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Affiliation(s)
- Gemma Navarro
- Center for Pharmaceutical Biotechnology & Nanomedicine, Northeastern University, Boston, MA 02115, USA
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33
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Gusachenko (Simonova) O, Kravchuk Y, Konevets D, Silnikov V, Vlassov VV, Zenkova MA. Transfection Efficiency of 25-kDa PEI–Cholesterol Conjugates with Different Levels of Modification. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:1091-110. [DOI: 10.1163/156856209x444448] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
| | - Youlia Kravchuk
- b Institute of Chemical Biology and Fundamental Medicine SB RAS. 8, Lavrentiev av., Novosibirsk 630090, Russia
| | - Dmitriy Konevets
- c Institute of Chemical Biology and Fundamental Medicine SB RAS. 8, Lavrentiev av., Novosibirsk 630090, Russia
| | - Vladimir Silnikov
- d Institute of Chemical Biology and Fundamental Medicine SB RAS. 8, Lavrentiev av., Novosibirsk 630090, Russia
| | - Valentin V. Vlassov
- e Institute of Chemical Biology and Fundamental Medicine SB RAS. 8, Lavrentiev av., Novosibirsk 630090, Russia
| | - Marina A. Zenkova
- f Institute of Chemical Biology and Fundamental Medicine SB RAS. 8, Lavrentiev av., Novosibirsk 630090, Russia
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34
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Lin SY, Zhao WY, Tsai HC, Hsu WH, Lo CL, Hsiue GH. Sterically Polymer-Based Liposomal Complexes with Dual-Shell Structure for Enhancing the siRNA Delivery. Biomacromolecules 2012; 13:664-75. [DOI: 10.1021/bm201746t] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shuian-Yin Lin
- Department of Chemical
Engineering, National Tsing Hua University, Hsinchu 300, Taiwan, Republic of China
| | - Wei-Yu Zhao
- Department of Chemical
Engineering, National Chung Hsing University, Taichung 402, Taiwan, Republic of China
| | - Hsieh-Chih Tsai
- Graduate Institute of Applied
Science and Technology, National Taiwan University of Science and Technology, 106 Taipei, Taiwan,
Republic of China
| | - Wei-Hsin Hsu
- Department of Biomedical
Engineering and Environmental Science, National Tsing Hua University, Hsinchu 300, Taiwan, Republic
of China
| | - Chun-Liang Lo
- Department
of Biomedical
Engineering, National Yang Ming University, Taipei, Taiwan 112, Republic of China
| | - Ging-Ho Hsiue
- Department of Chemical
Engineering, National Tsing Hua University, Hsinchu 300, Taiwan, Republic of China
- Department of Chemical Engineering/R&D Center for Membrane Technology, Chung Yuan University, Chung Li, 320 Taiwan, Republic of China
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García L, Urbiola K, Düzgüneş N, Tros de Ilarduya C. Lipopolyplexes as nanomedicines for therapeutic gene delivery. Methods Enzymol 2012; 509:327-38. [PMID: 22568913 DOI: 10.1016/b978-0-12-391858-1.00016-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We describe an efficient, nonviral gene transfer system that employs polyethylenimine (PEI 800, 25, 22 kDa), and 1,2-dioleoyl-3-(trimethylammonium) propane (DOTAP) and cholesterol (Chol) as lipids (lipopolyplex), at three different lipid/DNA molar ratios (2/1, 5/1, and 17/1), employing five different formulation strategies. PEIs of 800, 25, and 22 kDa are highly effective in condensing plasmid DNA, leading to a complete condensation at N/P⁺/⁻ ratios above 4. Increasing the molar ratio lipid/DNA in the complex results in higher positive values of the zeta potential, while the particle size increases in some protocols, but not in others. PEI of molecular weight 800 kDa used in the formulation of lipopolyplexes results in bigger particles compared to that obtained with the smaller PEI species. Transfection activity is measured using pCMVLuc expressing luciferase is maximal by using strategies 3 and 4 and an N/P molar ratio of 17/1. These complexes have a high efficiency of gene delivery to liver cancer cells, even in the presence of a high serum concentration. Complexes formed with linear PEI are more effective than lipopolyplexes containing branched PEI. The ternary complexes are much more efficient than conventional lipoplexes (cationic lipid and DNA) and polyplexes (cationic polymer and DNA). The same behavior is observed for complexes prepared with the therapeutic gene pCMVIL-12 expressing interleukin-12.
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Affiliation(s)
- Leire García
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Navarra, Pamplona, Spain
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Yonenaga N, Kenjo E, Asai T, Tsuruta A, Shimizu K, Dewa T, Nango M, Oku N. RGD-based active targeting of novel polycation liposomes bearing siRNA for cancer treatment. J Control Release 2011; 160:177-81. [PMID: 22019557 DOI: 10.1016/j.jconrel.2011.10.004] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 10/05/2011] [Accepted: 10/06/2011] [Indexed: 12/13/2022]
Abstract
For the purpose of systemic delivery of siRNA, we previously developed polycation liposomes (PCLs) containing dicetylphosphate-tetraethylenepentamine (DCP-TEPA) as an effective siRNA carrier. In the present study, to endow these PCLs (TEPA-PCL) actively target cancer cells and angiogenic vessels, we decorated the PCLs with cyclic RGD, by using cyclic RGD-grafted distearoylphosphatidylethanolamine-polyethylene glycol (DSPE-PEG), and investigated the usefulness of this type of carrier (RGD-PEG-PCL) for active targeting. Firstly, the gene-silencing efficacy of siRNA for luciferase (siLuc2) formulated in RGD-PEG-PCL (RGD-PEG-PCL/siLuc2) was examined in vitro by using B16F10-luc2 murine melanoma cells stably expressing the luciferase 2 gene, where the siRNA was grafted with cholesterol at the 3'-end of the sense strand (siRNA-C) for the stable association of the siRNA with the PCL. RGD-PEG-PCL/siLuc2 showed high knockdown efficiency compared with siLuc2 formulated in PEGylated TEPA-PCL without cyclic RGD (PEG-PCL). Next, the gene-silencing efficacy of RGD-PEG-PCL/siLuc2 was examined in vivo by use of B16F10-luc2 lung metastatic model mice. The intravenous injection of RGD-PEG-PCL/siLuc2 showed high knockdown efficiency against metastatic B16F10-luc2 tumors in the lungs of the mice, as assessed with an in vivo imaging system. These data strongly suggest that systemic and active targeting siRNA delivery using RGD-PEG-PCL is useful for cancer RNAi therapy.
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Affiliation(s)
- Norihito Yonenaga
- Department of Medical Biochemistry and Global COE Program, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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Zhang Z, Fang X, Hao J, Li Y, Sha X. Triolein-based polycation lipid nanocarrier for efficient gene delivery: characteristics and mechanism. Int J Nanomedicine 2011; 6:2235-44. [PMID: 22114487 PMCID: PMC3215164 DOI: 10.2147/ijn.s24720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We proposed to develop a polycation lipid nanocarrier (PLN) with higher transfection efficiency than our previously described polycation nanostrucutred lipid nanocarrier (PNLC). PLN was composed of triolein, cetylated low-molecular-weight polyethylenimine, and dioleoyl phosphatidylethanolamine. The physicochemical properties of PLN and the PLN/DNA complexes (PDC) were characterized. The in vitro transfection was performed in human lung adenocarcinoma (SPC-A1) cells, and the intracellular mechanism was investigated as well. The measurements indicated that PLN and PDC are homogenous nanometer-sized particles with a positive charge. The transfection efficiency of PDC significantly increased with the content of triolein and was higher than that of PNLC and commercial Lipofectamine™ 2000. In particular, the transfection of PLN in the presence of 10% serum was more effective than that in its absence. With the help of specific inhibitors of chlorpromazine and filipin, the clathrin-dependent endocytosis pathway was determined to be the main contributor to the successful transfection mediated by PLN in SPC-A1 cells. The captured images verified that the fluorescent PDC was localized in the lysosomes and nuclei after endocytosis. Thus, PLN represents a novel efficient nonviral gene delivery vector.
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Affiliation(s)
- Zhiwen Zhang
- Key Laboratory of Smart Drug Delivery, Ministry of Education and PLA, Department of Pharmaceutics, School of Pharmacy, Fudan University, Shanghai, People's Republic of China
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Xue HY, Wong HL. Solid lipid-PEI hybrid nanocarrier: an integrated approach to provide extended, targeted, and safer siRNA therapy of prostate cancer in an all-in-one manner. ACS NANO 2011; 5:7034-7047. [PMID: 21838301 DOI: 10.1021/nn201659z] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Small-interfering RNA (siRNA) has a high application potential for therapeutic silencing of pathologic or drug-resistance genes. However, although recent research has led to several nonviral nucleic acid delivery systems with encouraging transfection performance, there remains a substantial gap between these systems and an ideal siRNA carrier that can be safely and effectively used for the more complex delivery tasks such as cancer management. We hypothesized that by integrating the high transfection performance of linear polyethylenimine (PEI) with the controlled release properties of solid lipid components, and complementing the resulting lipid-PEI hybrid nanocarrier (LPN) with receptor-targeting capability, multiple limitations of the conventional siRNA carriers would be simultaneously overcome. Data comparing this new hybrid system with the conventional siRNA-PEI polyplexes showed 15 to 21% less loss of siRNA, higher selectivity for prostate cancer cells over noncancerous prostate cells, and significant reduction in both acute and delayed carrier toxicity especially to the noncancerous RWPE1 cells (e.g., 71.2% of LPN-treated cells preserved proliferative capacity versus ≤30.2% in other groups). We further demonstrated sustained intracellular siRNA release from LPNs, which was shown translatable into extended in vitro and in vivo RNA-interference effects for a minimum of one week. Our findings generally support the use of LPN technology to achieve a longer-acting, less toxic, more efficient, and cancer-specific form of siRNA therapy in an "all-in-one" manner. This brings the nonviral siRNA delivery approach one important step closer to its clinical application.
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Affiliation(s)
- Hui-Yi Xue
- Department of Pharmaceutical Sciences, Temple University School of Pharmacy, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, USA
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Ma K, Shen H, Shen S, Xie M, Mao C, Qiu L, Jin Y. Development of a successive targeting liposome with multi-ligand for efficient targeting gene delivery. J Gene Med 2011; 13:290-301. [PMID: 21574214 DOI: 10.1002/jgm.1569] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND A successful gene delivery system needs to breakthrough several barriers to allow efficient transgenic expression. In the present study, successive targeting liposomes (STL) were constructed by integrating various targeting groups into a nanoparticle to address this issue. METHODS Polyethylenimine (PEI) 1800-triamcinolone acetonide (TA) with nuclear targeting capability was synthesized by a two-step reaction. Lactobionic acid was connected with cholesterol to obtain a compound of [(2-lactoylamido) ethylamino]formic acid cholesterol ester (CHEDLA) with hepatocyte-targeting capability. The liposome was modified with PEI 1800-TA and CHEDLA to prepare successive targeting liposome (STL). Its physicochemical properties and transfection efficiency were investigated both in vitro and in vivo. RESULTS The diameter of STL was approximately 100 nm with 20 mV of potential. The confocal microscopy observation and potential assay verified that lipid bilayer of STL was decorated with PEI 1800-TA. Cytotoxicity of STL was significantly lower than that of PEI 1800-TA and PEI 25K. The transfection efficiency of 10% CHEDLA STL in HepG2 cells was the higher than of the latter two with serum. Its transfection efficiency was greatly reduced with excessive free galactose, indicating that STL was absorbed via galactose receptor-mediated endocytosis. The in vivo study in mice showed that 10% CHEDLA STL had better transgenic expression in liver than the other carriers. CONCLUSIONS STL with multi-ligand was able to overcome the various barriers to target nucleus and special cells and present distinctive transgenic expression. Therefore, it has a great potential for gene therapy as a nonviral carrier.
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Affiliation(s)
- Kun Ma
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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Koide H, Asai T, Furuya K, Tsuzuku T, Kato H, Dewa T, Nango M, Maeda N, Oku N. Inhibition of Akt (ser473) phosphorylation and rapamycin-resistant cell growth by knockdown of mammalian target of rapamycin with small interfering RNA in vascular endothelial growth factor receptor-1-targeting vector. Biol Pharm Bull 2011; 34:602-8. [PMID: 21532145 DOI: 10.1248/bpb.34.602] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Previously we developed dicetyl phosphate-tetraethylenepentamine-based polycation liposomes (TEPA-PCL) for use in small interfering RNA (siRNA) therapy. In the present study, mammalian target of rapamycin (mTOR) expression in cancer cells was silenced with mTOR-siRNA (simTOR) formulated in TEPA-PCL modified with Ala-Pro-Arg-Pro-Gly (APRPG), a peptide having affinity for vascular endothelial growth factor receptor-1 (VEGFR-1). We investigated the effects of inhibition of mTOR, focusing on the differences between cells treated with simTOR and those with rapamycin in terms of Akt (ser473) phosphorylation and antiproliferative effects. Rapamycin treatment is known to induce Akt (ser473) phosphorylation which attenuates the antiproliferative effects of rapamycin. As a result, knockdown of mTOR did not alter or only slightly reduced Akt (ser473) phosphorylation in phosphatase and tensin homolog deleted from chromosome 10 (PTEN)-null (LNCaP and MDA-MB-468 cells) and PTEN-positive (DU 145 and MDA-MB-231) cells, although rapamycin induced Akt (ser473) phosphorylation of these cells. Rapamycin suppressed the growth of PTEN-null cells, in which the rapamycin-sensitive mTOR complex 1 (mTORC1) is excessively activated. On the other hand, rapamycin did not suppress the growth of PTEN-positive cells possibly through a negative feedback mechanism via the rapamycin-insensitive mTOR complex 2 (mTORC2) signaling pathway. In contrast, simTOR significantly suppressed the growth of cancer cells regardless of the presence of PTEN, possibly through inhibition of both mTORC1 and mTORC2. These results indicate that mTOR knockdown using APRPG-TEPA-PCL/simTOR is likely to be an effective strategy for cancer siRNA therapy.
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Affiliation(s)
- Hiroyuki Koide
- Department of Medical Biochemistry and Global COE Program, Graduate School of Pharmaceutical Sciences, University of Shizuoka, Japan
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41
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Nano-polyplex as a non-viral gene carrier for the expression of bone morphogenetic protein in osteoblastic cells. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.04.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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42
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Opanasopit P, Paecharoenchai O, Rojanarata T, Ngawhirunpat T, Ruktanonchai U. Type and composition of surfactants mediating gene transfection of polyethylenimine-coated liposomes. Int J Nanomedicine 2011; 6:975-83. [PMID: 21720509 PMCID: PMC3124401 DOI: 10.2147/ijn.s18647] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Indexed: 11/25/2022] Open
Abstract
Background: The objective of this study was to compare the transfection efficiency of anionic liposomes coated with polyethylenimine (PEI) with that of PEI and Lipofectamine 2000™ using the plasmid DNA encoding green fluorescent protein in a human hepatoma (Huh7) cell line. Methods: Factors affecting transfection efficiency, including type of surfactant, ratio of phosphatidylcholine (PC)/surfactant, carrier/DNA weight ratio, and the presence of serum have been investigated. Anionic liposomes, composed of PC and anionic surfactants, ie, sodium oleate (NaO), sodium taurocholate (NaT), or zwitterionic surfactant (3-[{3-cholamidopropyl}-dimethylammonio]-1-propanesulfonate, CHAPS) at molar ratios of 10:1, 10:1.5, and 10:2 were prepared by the sonication method. Subsequently, they were coated with PEI to produce polycationic liposomes (PCL). Results: PCL was able to condense with pDNA depending on the PCL/DNA weight ratio. PCL composed of PC:NaO (10:2) showed higher transfection efficiency than NaT and CHAPS at all weight ratios tested. Higher transfection efficiency and gene expression were observed when the carrier/DNA weight ratio increased. The highest transfection efficiency was found at a weight ratio of 0.5. Conclusion: This PCL showed remarkably high transfection efficiency with low cytotoxicity to Huh7 cells in vitro, in comparison with PEI and Lipofectamine 2000.
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Bahadur KCR, Landry B, Aliabadi HM, Lavasanifar A, Uludağ H. Lipid substitution on low molecular weight (0.6-2.0 kDa) polyethylenimine leads to a higher zeta potential of plasmid DNA and enhances transgene expression. Acta Biomater 2011; 7:2209-17. [PMID: 21256988 DOI: 10.1016/j.actbio.2011.01.027] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 01/14/2011] [Accepted: 01/18/2011] [Indexed: 12/30/2022]
Abstract
Cationic polymers are desirable gene carriers because of their better safety profiles than viral delivery systems. Low molecular weight (MW) polymers are particularly attractive, since they display little cytotoxicity, but they are also ineffective for gene delivery. To create effective carriers from low MW polymers palmitic acid (PA) was substituted on 0.6-2.0 kDa polyethylenimines (PEIs) and their efficiency for plasmid DNA (pDNA) delivery was evaluated. The extent of lipid substitution was dependent on the lipid/PEI feed ratio and the polymer MW. While the hydrodynamic size of the polymer/pDNA complexes (polyplexes) increased or decreased depending on the extent of lipid substitution, the ζ potential of the assembled complexes was consistently higher as a result of lipid substitution. Lipid substitution generally increased the in vitro toxicity of the PEIs, but it was significantly lower than that of the 25 kDa branched PEI. The in vitro transfection efficiency of the lipid-substituted polymers was higher than that of native PEIs, which were not at all effective. The delivery efficiency was proportional to the extent of lipid substitution as well as the polymer MW. This correlated with the increased uptake of lipid-substituted polyplexes, based on confocal microscopic investigations with FITC-labeled pDNA. The addition of chloroquine further increased the transfection efficiency of lipid-substituted PEIs, indicating that endosomal release was a limiting factor affecting the efficiency of these carriers. This study indicates that lipid substitution on low MW PEIs makes their assembly more effective, resulting in better delivery of pDNA into mammalian cells.
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Affiliation(s)
- K C Remant Bahadur
- Department of Chemical & Material Engineering, Faculty of Engineering, University of Alberta, Edmonton, Canada
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44
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Asai T, Matsushita S, Kenjo E, Tsuzuku T, Yonenaga N, Koide H, Hatanaka K, Dewa T, Nango M, Maeda N, Kikuchi H, Oku N. Dicetyl Phosphate-Tetraethylenepentamine-Based Liposomes for Systemic siRNA Delivery. Bioconjug Chem 2011; 22:429-35. [DOI: 10.1021/bc1004697] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomohiro Asai
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Saori Matsushita
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Eriya Kenjo
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takuma Tsuzuku
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Norihito Yonenaga
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroyuki Koide
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kentaro Hatanaka
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takehisa Dewa
- Department of Life and Materials Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Mamoru Nango
- Department of Life and Materials Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Noriyuki Maeda
- Nippon Fine Chemical Co. Ltd., 5-1-1 Umei, Takasago, Hyogo 676-0074, Japan
| | - Hiroshi Kikuchi
- DDS Research, Formulation Research Laboratories, Eisai Co., Ltd., 5-1-3 Tokodai, Tsukuba, 300-2635, Japan
| | - Naoto Oku
- Department of Medical Biochemistry and Global COE, University of Shizuoka Graduate School of Pharmaceutical Sciences, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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Liu YK, Lin YL, Chen CH, Lin CM, Ma KL, Chou FH, Tsai JS, Lin HY, Chen FR, Cheng TL, Chang CC, Liao KW. A unique and potent protein binding nature of liposome containing polyethylenimine and polyethylene glycol: a nondisplaceable property. Biotechnol Bioeng 2011; 108:1318-27. [PMID: 21192002 DOI: 10.1002/bit.23048] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 11/30/2010] [Accepted: 12/20/2010] [Indexed: 01/02/2023]
Abstract
Most of the currently available targeting vectors are produced via the linkage of targeting molecules. However, the coupling process is complicated, and the covalent linkage may attenuate the activity of certain targeting molecules. In this study, we have developed a cationic liposome complexed with polyethylenimine and polyethylene glycol polymers (LPPC) that can capture various proteins without covalent conjugation. Characterizations of prepared LPPC revealed that the maximal-binding capacity was about 170 µg of bovine serum albumin to 40 µg of sphere-shaped LPPC (180 nm). The proteins were essentially located at or near the surface when analyzed by atomic force or transmission electron microscopy. We demonstrate that polyethylenimine was an essential component to bind the proteins. Upon the saturation of captured proteins, a given protein could not be displaced by other additional proteins and still retained its biological activity. Using a variety of functional proteins, we show some typical examples of the utility of incorporated beta-glucuronidase and antibodies onto the LPPC. The beta-glucuronidase can be used for the study of antigen-antibody interactions, whereas in studies with the antibody complex, we used anti-CD3 as an agonist to stimulate the proliferation of peripheral blood mononuclear cells via a receptor-mediated mechanism and anti-VEGFR for cell staining. In conclusion, the prepared LPPC can provide a platform to capture biologically and biochemically functional proteins on its surface for various applications, such as cell signaling, cell profiling, noncovalent enzyme-linked immunoassays, and others not mentioned.
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Affiliation(s)
- Yen-Ku Liu
- Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsin-Chu, 30068, Taiwan, Republic of China
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46
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Design and synthesis of novel functional lipid-based bioconjugates for drug delivery and other applications. Methods Mol Biol 2011; 751:357-78. [PMID: 21674343 DOI: 10.1007/978-1-61779-151-2_23] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The modification of biologicals such as proteins/peptides, small molecules, and other polymers with lipids provides an efficient method for mediating their insertion into liposomes and lipid-core micellar nanocarriers. In this chapter, we describe several representative protocols developed in our laboratory for the bioconjugation of liposomes and lipid-core micelles for drug/gene delivery and diagnostic imaging applications.
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Ma K, Hu M, Xie M, Shen H, Qiu L, Fan W, Sun H, Chen S, Jin Y. Investigation of polyethylenimine-grafted-triamcinolone acetonide as nucleus-targeting gene delivery systems. J Gene Med 2010; 12:669-80. [PMID: 20635325 DOI: 10.1002/jgm.1485] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Nuclear membrane is one of the main barriers in polymer mediated intracellular gene delivery. To improve the transgenic activity and safety of nonviral vector, triamcinolone acetonide (TA) as a nuclear localization signal was conjugated with different molecular weight polyethylenimine (PEI). METHODS Different molecular weight PEI [600, 1800, 25,000 (25k)] was conjugated with TA to synthesize PEI-TA by two-step reaction. Their physicochemical characteristics, in vitro cytotoxicity and transfection efficiency were evaluated. To investigate the difference of transfection efficiency of various molecular weight PEI-TA, their transfection mechanism was further investigated by confocal microscopy and competition assay. Transgenic expression in vivo was evaluated by injection into hepatic portal vein of mice. RESULTS All PEI-TA could form nanosize polyplexes with DNA and their physicochemical properties resemble each other. Their cytotoxicities were negligible compared to PEI 25k. The order of transfection efficiency was PEI 1800-TA > PEI 600-TA > PEI 25k-TA. A transfection mechanism study displayed that TA could inhibit considerably the transgenic activity of PEI 1800-TA and PEI 600-TA, but that of PEI 25k-TA was not inhibited. It was suggested that PEI 1800-TA and PEI 600-TA might translocate into the nucleus. Confocal microscopy investigation verified this suggestion. The data strongly suggested that the transfection efficiency of PEI 1800-TA in vivo was much higher than that of PEI 25k, which was consistent with the results obtained in vitro. CONCLUSIONS Low molecular weight PEI-TA could translocate into the nucleus efficiently. PEI 1800-TA presented higher transgenic activity and it has a great potential for gene therapy as a nonviral carrier.
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Affiliation(s)
- Kun Ma
- Institute of Pharmaceutics, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, PR China
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48
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Tros de Ilarduya C, García L, Düzgünes N. Liposomes and lipopolymeric carriers for gene delivery. J Microencapsul 2010; 27:602-8. [DOI: 10.3109/02652048.2010.501396] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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49
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Andersen MØ, Lichawska A, Arpanaei A, Rask Jensen SM, Kaur H, Oupicky D, Besenbacher F, Kingshott P, Kjems J, Howard KA. Surface functionalisation of PLGA nanoparticles for gene silencing. Biomaterials 2010; 31:5671-7. [PMID: 20434215 DOI: 10.1016/j.biomaterials.2010.03.069] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Accepted: 03/26/2010] [Indexed: 11/27/2022]
Abstract
This work presents a method for decorating the surface of poly (lactide-co-glycolide) (PLGA) nanoparticles with polyethyleneimine (PEI) utilising a cetyl derivative to improve surface functionalisation and siRNA delivery. Sub-micron particles were produced by an emulsion-diffusion method using benzyl alcohol. We demonstrate by x-ray photoelectron spectroscopy (XPS), 2.6 times higher surface presentation of amines using the cetyl derivative compared to non-cetylated-PEI formulations (6.5 and 2.5% surface nitrogen, respectively). The modified particles were shown by spectroscopy, fluorescent microscopy and flow cytometry to bind and mediate siRNA delivery into the human osteosarcoma cell line U2OS and the murine macrophage cell line J774.1. Specific reduction in the anti-apoptotic oncogene BCL-w in U2OS cells was achieved with particles containing cetylated-PEI (53%) with no cellular toxicity. In addition, particles containing cetylated-PEI achieved 64% silencing of TNFalpha in J774.1 cells. This rapid method for surface modification of PLGA nanoparticles promotes its application for alternative cetylated functional derivatives as a strategy to control specific biological properties of nanoparticles.
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Affiliation(s)
- Morten Ø Andersen
- Interdisciplinary Nanoscience Center (iNANO), Ny Munkegade 118, University of Aarhus, Aarhus C, Denmark
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Hom C, Lu J, Liong M, Luo H, Li Z, Zink JI, Tamanoi F. Mesoporous silica nanoparticles facilitate delivery of siRNA to shutdown signaling pathways in mammalian cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:1185-90. [PMID: 20461725 PMCID: PMC2953950 DOI: 10.1002/smll.200901966] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Affiliation(s)
- Christopher Hom
- Department of Microbiology, Immunology, and Molecular Genetics, California NanoSystems Institute, JCCC, University of California, Los Angeles, 609 Charles E. Young Drive East, Los Angeles, CA 90095 (USA)
| | - Jie Lu
- Department of Microbiology, Immunology, and Molecular Genetics, California NanoSystems Institute, JCCC, University of California, Los Angeles, 609 Charles E. Young Drive East, Los Angeles, CA 90095 (USA)
| | - Monty Liong
- Department of Chemistry and Biochemistry, California NanoSystems Institute, University of California, Los Angeles, 605 Charles E. Young Drive East, Los Angeles, CA 90095 (USA)
| | - Hanzhi Luo
- School of Basic Medical Sciences, Health Science Center, Peking University, 38 Xueyuan Road, Haidian District, Beijing 100191 (P.R. China)
| | - Zongxi Li
- Department of Chemistry and Biochemistry, California NanoSystems Institute, University of California, Los Angeles, 605 Charles E. Young Drive East, Los Angeles, CA 90095 (USA)
| | - Jeffrey I. Zink
- Department of Chemistry and Biochemistry, California NanoSystems Institute, University of California, Los Angeles, 605 Charles E. Young Drive East, Los Angeles, CA 90095 (USA)
| | - Fuyuhiko Tamanoi
- Department of Microbiology, Immunology, and Molecular Genetics, California NanoSystems Institute, JCCC, University of California, Los Angeles, 609 Charles E. Young Drive East, Los Angeles, CA 90095 (USA)
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