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Yuan Z, Ding J, Zhang Y, Huang B, Song Z, Meng X, Ma X, Gong X, Huang Z, Ma S, Xiang S, Xu W. Components, mechanisms and applications of stimuli-responsive polymer gels. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2
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Qi Y, Xu C, Xu F. Degradable branched polycationic systems for nucleic acid delivery. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1631. [DOI: 10.1002/wnan.1631] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Yu Qi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education), Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing China
| | - Chen Xu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education), Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing China
| | - Fu‐Jian Xu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing China
- Key Lab of Biomedical Materials of Natural Macromolecules (Beijing University of Chemical Technology, Ministry of Education), Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology Beijing China
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3
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Li X, Jeong K, Lee Y, Guo T, Lee D, Park J, Kwon N, Na JH, Hong SK, Cha SS, Huang JD, Choi S, Kim S, Yoon J. Water-Soluble Phthalocyanines Selectively Bind to Albumin Dimers: A Green Approach Toward Enhancing Tumor-Targeted Photodynamic Therapy. Am J Cancer Res 2019; 9:6412-6423. [PMID: 31588226 PMCID: PMC6771247 DOI: 10.7150/thno.35210] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/23/2019] [Indexed: 12/15/2022] Open
Abstract
Targeted delivery of therapeutic agents is of particular interest in the field of cancer treatment. However, there is an urgent need for developing clinically promising targeting approaches that can be readily administered in a green manner. Methods: Five phthalocyanine derivatives bearing different anionic and cationic groups were designed and synthesized. Then, their binding affinity with albumin were studied using gel assays, optical spectra and computational simulation. Finally, in vitro and in vivo fluorescence imaging and photodynamic therapy (PDT) evaluations were carried out. Results: The two positively charged compounds could selectively bind to albumin dimer over albumin monomer, while the three negatively charged phthalocyanines could bind to both albumin monomer and dimer. Following systemic administration, the phthalocyanines show improved tumor accumulation via transport by natural albumin. PDT evaluations indicate that one of the positively charged compounds, ZnPcN4, shows outstanding phototherapeutic efficacy against tumors in preclinical models. Conclusion: Our findings demonstrate that the use of water-soluble phthalocyanines as photosensitizers and in vivo albumin as a natural carrier may provide a green and efficient approach for tumor-targeted imaging and therapy.
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Huang W, Wang X, Wang C, Du L, Zhang J, Deng L, Cao H, Dong A. Structural exploration of hydrophobic core in polycationic micelles for improving siRNA delivery efficiency and cell viability. J Mater Chem B 2019; 7:965-973. [DOI: 10.1039/c8tb02706d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Improving siRNA delivery efficiency often encounters a dilemma with poor or decreased biocompatibility for polycationic micelles.
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Affiliation(s)
- Wenjun Huang
- Department of Polymer Science and Technology
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- Tianjin University
- Tianjin 300072
| | - Xiaoxia Wang
- Laboratory of Nucleic Acid Technology
- Institute of Molecular Medicine
- Peking University
- Beijing 100871
- China
| | - Changrong Wang
- Department of Polymer Science and Technology
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- Tianjin University
- Tianjin 300072
| | - Lili Du
- Laboratory of Nucleic Acid Technology
- Institute of Molecular Medicine
- Peking University
- Beijing 100871
- China
| | - Jianhua Zhang
- Department of Polymer Science and Technology
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- Tianjin University
- Tianjin 300072
| | - Liandong Deng
- Department of Polymer Science and Technology
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- Tianjin University
- Tianjin 300072
| | - Huiqing Cao
- Laboratory of Nucleic Acid Technology
- Institute of Molecular Medicine
- Peking University
- Beijing 100871
- China
| | - Anjie Dong
- Department of Polymer Science and Technology
- School of Chemical Engineering and Technology
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- Tianjin University
- Tianjin 300072
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Guazzo R, Gardin C, Bellin G, Sbricoli L, Ferroni L, Ludovichetti FS, Piattelli A, Antoniac I, Bressan E, Zavan B. Graphene-Based Nanomaterials for Tissue Engineering in the Dental Field. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E349. [PMID: 29783786 PMCID: PMC5977363 DOI: 10.3390/nano8050349] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/16/2018] [Accepted: 05/17/2018] [Indexed: 12/12/2022]
Abstract
The world of dentistry is approaching graphene-based nanomaterials as substitutes for tissue engineering. Apart from its exceptional mechanical strength, electrical conductivity and thermal stability, graphene and its derivatives can be functionalized with several bioactive molecules. They can also be incorporated into different scaffolds used in regenerative dentistry, generating nanocomposites with improved characteristics. This review presents the state of the art of graphene-based nanomaterial applications in the dental field. We first discuss the interactions between cells and graphene, summarizing the available in vitro and in vivo studies concerning graphene biocompatibility and cytotoxicity. We then highlight the role of graphene-based nanomaterials in stem cell control, in terms of adhesion, proliferation and differentiation. Particular attention will be given to stem cells of dental origin, such as those isolated from dental pulp, periodontal ligament or dental follicle. The review then discusses the interactions between graphene-based nanomaterials with cells of the immune system; we also focus on the antibacterial activity of graphene nanomaterials. In the last section, we offer our perspectives on the various opportunities facing the use of graphene and its derivatives in associations with titanium dental implants, membranes for bone regeneration, resins, cements and adhesives as well as for tooth-whitening procedures.
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Affiliation(s)
- Riccardo Guazzo
- Department of Neurosciences, Institute of Clinical Dentistry, University of Padova, 35128 Padova, Italy.
| | - Chiara Gardin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Pia Hospital, GVM Care & Research, 10132 Torino, Italy.
| | - Gloria Bellin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Pia Hospital, GVM Care & Research, 10132 Torino, Italy.
| | - Luca Sbricoli
- Department of Neurosciences, Institute of Clinical Dentistry, University of Padova, 35128 Padova, Italy.
| | - Letizia Ferroni
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Pia Hospital, GVM Care & Research, 10132 Torino, Italy.
| | | | - Adriano Piattelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy.
| | - Iulian Antoniac
- Department Materials Science and Engineering, University Politehnica of Bucharest, 060032 Bucharest, Romania.
| | - Eriberto Bressan
- Department of Neurosciences, Institute of Clinical Dentistry, University of Padova, 35128 Padova, Italy.
| | - Barbara Zavan
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Cecilia Hospital, GVM Care & Research, 48033 Ravenna, Italy.
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6
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Chen L, Long D, Huang S, Yang Q, Hao J, Wu N, Peng L. Evaluation of a novel poly(amidoamine) with pendant aminobutyl group on the cellular properties of transfected bone marrow mesenchymal stem cells. J Biomed Mater Res A 2017; 106:686-697. [PMID: 28986940 DOI: 10.1002/jbm.a.36264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 07/07/2017] [Accepted: 07/28/2017] [Indexed: 02/05/2023]
Abstract
Stem cell-based gene therapy has been considered in the treatment of many degenerative diseases. Gene-modified stem cells should maintain its reproductive activity without losing stem cell properties, including genetic phenotype and differentiation potential. In the study, a novel poly (amidoamine) with pendant aminobutyl group (PAA-BA) designed by our group was used in the transfection of bone marrow mesenchymal stromal cells (BMSCs) and the cellular properties post-transfection were evaluated, including DNA content, colony forming capacity, genetic phenotype, and multi-directional differentiation. Two classical non-viral gene delivery vectors, polyethylenimine (PEI) and Lipofectamine 2000 (LP2000) were also used. Compared to non-transfected group, PAA-BA showed minor decreased DNA content but maintained BMSCs' phenotype, reproductive activity and multi-differentiation potential (osteogenic, chondrogenic, adipogenic, and neurogenic differentiation). Both PAA-BA and PEI transfected BMSCs demonstrated improved osteogenic differentiation ability at late stage but suppressed adipogenic as well as mature neural differentiation in vitro. LP2000 and PEI transfected BMSCs displayed significantly lower DNA content and reproductive activity. These findings suggest that PAA-BA is one of safe gene delivery vectors in BMSCs transfection and plays a role in stem cell's osteogenic and neurogenic differentiation. This study proposes the potential application of PAA-BA in BMSCs based gene therapy, in particular bone and nerve relative diseases. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 686-697, 2018.
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Affiliation(s)
- Lili Chen
- Department of Orthopedic Surgery, West China Hospital, Sichuan University; Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China.,Division of Health Quarantine, Shenzhen Entry-Exit Inspection and Quarantine Bureau, 518045, China
| | - Dan Long
- Department of Orthopedic Surgery, West China Hospital, Sichuan University; Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Shishu Huang
- Department of Orthopedic Surgery, West China Hospital, Sichuan University; Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qian Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jin Hao
- Program in Biological Sciences in Dental Medicine, Harvard School of Dental Medicine, Boston, Massachusetts, 02115
| | - Nan Wu
- Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100032, China
| | - Lin Peng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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7
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Dubois JLN, Lavignac N. Cationic poly(amidoamine) promotes cytosolic delivery of bovine RNase A in melanoma cells, while maintaining its cellular toxicity. J Mater Chem B 2015; 3:6501-6508. [PMID: 32262558 DOI: 10.1039/c4tb02065k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Ribonucleases are known to cleave ribonucleic acids, inducing cell death. RNase A, a member of the ribonuclease family, generally displayed poor in vitro activity. This has been attributed to factors such as low intracellular delivery. Poly(amidoamine)s have been used to promote the translocation of non-permeant proteins to the cytosol. Our objective was to demonstrate that poly(amidoamine)s could potentially promote the delivery of RNase A to selected cell line. Interactions of three cationic poly(amidoamine)s (P1, P2 and ISA1) with wild-type bovine RNase A were investigated using gel retardation assays, DLS and microcalorimetry. Although the polymers and the protein are essentially cationic at physiological pH, complexation between the PAAs and RNase A was observed. The high sensitivity differential scanning calorimetry (HSDSC) thermograms demonstrated that the thermal stability of the protein was reduced when complexed with ISA1 (Tmax decreased by 6.5 °C) but was not affected by P1 and P2. All the polymers displayed low cytotoxicity towards non-cancerous cells (IC50 > 3.5 mg mL-1). While RNase A alone was not toxic to mouse melanoma cells (B16F1), P1 was able to promote cytosolic delivery of biologically active RNase A, increasing cell death (IC50 = 0.09 mg mL-1).
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Affiliation(s)
- Julie L N Dubois
- Medway School of Pharmacy, Universities of Kent and Greenwich at Medway, Central Avenue, Chatham ME4 4TB, UK.
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Baek KS, Ahn S, Lee J, Kim JH, Kim HG, Kim E, Kim JH, Sung NY, Yang S, Kim MS, Hong S, Kim JH, Cho JY. Immunotoxicological Effects of Aripiprazole: In vivo and In vitro Studies. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2015; 19:365-72. [PMID: 26170741 PMCID: PMC4499649 DOI: 10.4196/kjpp.2015.19.4.365] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/15/2015] [Accepted: 06/02/2015] [Indexed: 12/20/2022]
Abstract
Aripiprazole (ARI) is a commonly prescribed medication used to treat schizophrenia and bipolar disorder. To date, there have been no studies regarding the molecular pathological and immunotoxicological profiling of aripiprazole. Thus, in the present study, we prepared two different formulas of aripiprazole [Free base crystal of aripiprazole (ARPGCB) and cocrystal of aripiprazole (GCB3004)], and explored their effects on the patterns of survival and apoptosis-regulatory proteins under acute toxicity and cytotoxicity test conditions. Furthermore, we also evaluated the modulatory activity of the different formulations on the immunological responses in macrophages primed by various stimulators such as lipopolysaccharide (LPS), pam3CSK, and poly(I:C) via toll-like receptor 4 (TLR4), TLR2, and TLR3 pathways, respectively. In liver, both ARPGCB and GCB3004 produced similar toxicity profiles. In particular, these two formulas exhibited similar phospho-protein profiling of p65/nuclear factor (NF)-κB, c-Jun/activator protein (AP)-1, ERK, JNK, p38, caspase 3, and bcl-2 in brain. In contrast, the patterns of these phospho-proteins were variable in other tissues. Moreover, these two formulas did not exhibit any cytotoxicity in C6 glioma cells. Finally, the two formulations at available in vivo concentrations did not block nitric oxide (NO) production from activated macrophage-like RAW264.7 cells stimulated with LPS, pam3CSK, or poly(I:C), nor did they alter the morphological changes of the activated macrophages. Taken together, our present work, as a comparative study of two different formulas of aripiprazole, suggests that these two formulas can be used to achieve similar functional activation of brain proteins related to cell survival and apoptosis and immunotoxicological activities of macrophages.
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Affiliation(s)
- Kwang-Soo Baek
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | | | - Jaehwi Lee
- College of Pharmacy, Chung-Ang University, Seoul 156-756, Korea
| | - Ji Hye Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Han Gyung Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Eunji Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Jun Ho Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Nak Yoon Sung
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Sungjae Yang
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Mi Seon Kim
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Sungyoul Hong
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
| | - Jong-Hoon Kim
- Department of Veterinary Physiology, College of Veterinary Medicine, Biosafety Research Institute, Chonbuk National University, Jeonju 561-756, Korea
| | - Jae Youl Cho
- Department of Genetic Engineering, Sungkyunkwan University, Suwon 440-746, Korea
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Park S, Jeong K, Lee E, Lee JH, Yhee JY, Singh A, Koh J, Lee S, Kim K, Chan Kwon I, Park CR, Kim J, Kim S. Amphiphilized poly(ethyleneimine) nanoparticles: a versatile multi-cargo carrier with enhanced tumor-homing efficiency and biocompatibility. J Mater Chem B 2014; 3:198-206. [PMID: 32261940 DOI: 10.1039/c4tb01255k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Current theranostic approaches in cancer therapy demand delivery systems that can carry multiple drugs or imaging agents in a single nanoplatform with uniform biodistribution and improved target specificity. In this study, we have developed amphiphilized poly(ethyleneimine) nanoparticles (aPEI NPs) as a versatile multi-cargo delivery platform. The aPEI NPs were engineered to have the loading capacity for both hydrophobic molecules and negatively charged hydrophilic colloidal cargos through amphiphilic modification, i.e., octadecylation and subsequent PEGylation of poly(ethyleneimine). In the aqueous phase, the resulting aPEIs underwent amphiphilic self-assembly into spherical nanoparticles whose structure is constituted of the hydrophobic core with the positively charged surface and the hydrophilic neutral corona. The high degree of PEGylation resulted in the tiny colloidal size (<15 nm in diameter) and rendered the outmost surface coated with an antifouling corona which minimizes general shortcomings of poly(ethyleneimine)-based nanocarriers (e.g., cytotoxicity and liver filtration) while keeping its advantage (loading capability for negatively charged drugs). The unique nanostructure of aPEI NPs allowed for facile loading of hydrophobic model drugs (rubrene and IR780) in the core as well as negatively charged colloids (Pdots, proteins and DNA) on the inner surface via the hydrophobic and electrostatic interactions, respectively. Fluorescence imaging experiments demonstrated that the highly PEGylated aPEI-25 NPs showed prolonged blood circulation with minimal liver filtration and efficient delivery of the loaded cargos to the tumor. These combined merits, along with negligible toxicity profiles both in vitro and in vivo, validate the potential of aPEI-25 NPs as versatile nanocarriers for multi-cargo delivery.
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Affiliation(s)
- Solji Park
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul 136-791, Korea.
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10
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Lin X, Ishihara K. Water-soluble polymers bearing phosphorylcholine group and other zwitterionic groups for carrying DNA derivatives. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:1461-78. [DOI: 10.1080/09205063.2014.934319] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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11
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Luo K, He B, Wu Y, Shen Y, Gu Z. Functional and biodegradable dendritic macromolecules with controlled architectures as nontoxic and efficient nanoscale gene vectors. Biotechnol Adv 2014; 32:818-30. [PMID: 24389086 DOI: 10.1016/j.biotechadv.2013.12.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 12/13/2013] [Accepted: 12/15/2013] [Indexed: 12/28/2022]
Abstract
Gene therapy has provided great potential to revolutionize the treatment of many diseases. This therapy is strongly relied on whether a delivery vector efficiently and safely directs the therapeutic genes into the target tissue/cells. Nonviral gene delivery vectors have been emerging as a realistic alternative to the use of viral analogs with the potential of a clinically relevant output. Dendritic polymers were employed as nonviral vectors due to their branched and layered architectures, globular shape and multivalent groups on their surface, showing promise in gene delivery. In the present review, we try to bring out the recent trend of studies on functional and biodegradable dendritic polymers as nontoxic and efficient gene delivery vectors. By regulating dendritic polymer design and preparation, together with recent progress in the design of biodegradable polymers, it is possible to precisely manipulate their architectures, molecular weight and chemical composition, resulting in predictable tuning of their biocompatibility as well as gene transfection activities. The multifunctional and biodegradable dendritic polymers possessing the desirable characteristics are expected to overcome extra- and intracellular obstacles, and as efficient and nontoxic gene delivery vectors to move into the clinical arena.
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Affiliation(s)
- Kui Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Bin He
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yao Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Youqing Shen
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, China; Center for Bionanoengineering, Zhejiang University, Hangzhou 310027, China.
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.
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12
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Tong HP, Wang LF, Guo YL, Li L, Fan XZ, Ding J, Huang HY. Preparation of protamine cationic nanobubbles and experimental study of their physical properties and in vivo contrast enhancement. ULTRASOUND IN MEDICINE & BIOLOGY 2013; 39:2147-2157. [PMID: 23932278 DOI: 10.1016/j.ultrasmedbio.2013.05.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 05/17/2013] [Accepted: 05/24/2013] [Indexed: 06/02/2023]
Abstract
In this study, we aimed to prepare a novel type of microbubble (MB), protamine cationic nanobubble (NB), to provide a new vector for tumor gene therapy. We prepared cationic NBs with protamine and other lipid components using mechanical oscillation. The protamine cationic NBs had a mean diameter of 521.2 ± 37.57 nm, a zeta potential of +18.5 mV, and a gene-carrying capacity of 15.69 μg androgen receptor (AR) siRNA per 10(8) NBs. The cationic NBs exhibited superior contrast enhancement for in vivo imaging compared with SonoVue (Bracco, Geneva, Switzerland), and their physical properties did not change significantly after 1 wk; meanwhile, the transfection efficiency of the cationic NBs in androgen-independent prostate cancer cells mediated by ultrasound irradiation was better than that of liposomes (82.17 ± 7.4% vs. 55.04 ± 5.4%, p < 0.01). Therefore, the protamine cationic NB can be considered for use as a novel type of gene-loading MB for ultrasound imaging and MB-mediated gene therapy of tumors.
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Affiliation(s)
- Hai-Peng Tong
- Department of Ultrasound, Southwest Hospital, Third Military Medical University, Chongqing, China
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Zhang L, Hu C, Fan Y, Wu Y. Binary gene vectors based on hyperbranched poly(l-lactide-co-polyglycerol) and polyethylenimine for prolonged transgene expression via co-assembly with DNA into fiber core-shell triplexes. J Mater Chem B 2013; 1:6271-6282. [PMID: 32261700 DOI: 10.1039/c3tb21150a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hyper-branched PG6-PLA polymers based on hydrophilic hyperbranched polyglycerol (PG6) and the ester chain poly(l-lactide) (PLA) were synthesized and facilitated to develop a novel biocompatible release-controlled gene vector. The hyper-branched structure of PG6-PLA was verified by NMR, FT-IR and SEC-MALLS analysis. The co-assembly of PG6-PLA with high molecular weight polyethylenimine (PEI) of 25 kDa was discussed. The results of TEM, fluorescence tracking and size/zeta-potential analysis revealed that the PG6-PLA/PEI25k/DNA could co-assemble to generate a novel fiber core-shell conformation. In vitro cell experiment demonstrated that PG6-PLA significantly enhanced the ability of PEI25k to remain within cells and mediate luciferase and EGFP expression in the human embryonic kidney cell line 293T and human cervical carcinoma cell line HeLa, which was accompanied by improved cell biocompatibility and an extended period of transgene expression. Importantly, the binary vector PG6-PLA/PEI25k exhibited specific affinity to some tumour cell lines including HeLa and the HepG2 human hepatoma cell line. These results suggested that the novel gene delivery system based on fiber core-shell PG6-PLA/PEI25k/DNA can serve as a gene delivery system to mediate more efficient transgene expression.
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Affiliation(s)
- Lei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, PR China.
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14
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Peng L, Gao Y, Xue YN, Huang SW, Zhuo RX. The effectiveness, cytotoxicity, and intracellular trafficking of nonviral vectors for gene delivery to bone mesenchymal stem cells. J BIOACT COMPAT POL 2013. [DOI: 10.1177/0883911513481893] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Nonviral gene delivery that enables exogenous gene expression in bone mesenchymal stem cells could accelerate clinical application of cell-based gene therapy. This study systematically investigated and compared the potential of polyethylenimine and Lipofectamine 2000 as gene carriers to modify bone mesenchymal stem cells including transfection efficiency, cytotoxicity, intracellular trafficking as well as cell membrane damage and apoptosis/necrosis. Polyethylenimine at its optimal N/P ratio of 10 demonstrated the same toxic effects but lower transfection efficiency (17.1% vs 39.5%) compared to Lipofectamine. Intracellular trafficking resulted in over 80% of bone mesenchymal stem cells that were able to take up polyethylenimine polyplexes, but only 20.69% showed nuclear uptake; however, for Lipofectamine, about half bone mesenchymal stem cells were found to uptake lipoplexes but about 30% displayed nuclear localization. Moreover, the percentages of nuclear localization of both vectors were in close relationship with their transfection efficiency. We concluded that for bone mesenchymal stem cell transfection, polyethylenimine displayed high cellular uptake but Lipofectamine was more effective in delivering genes into the nucleus, which was likely the underlying basis for a more efficient gene expression. Further structure modification of polyethylenimine such as improving its nuclear entry ability will eventually make it a better candidate for bone mesenchymal stem cells’ in vitro gene delivery.
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Affiliation(s)
- Lin Peng
- State Key Laboratory of Oral Diseases, West China College & Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Yuan Gao
- State Key Laboratory of Oral Diseases, West China College & Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Ya-Nan Xue
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, P.R. China
| | - Shi-Wen Huang
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, P.R. China
| | - Ren-Xi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education, Department of Chemistry, Wuhan University, Wuhan, P.R. China
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Zheng Y, Chen H, Zeng X, Liu Z, Xiao X, Zhu Y, Gu D, Mei L. Surface modification of TPGS-b-(PCL-ran-PGA) nanoparticles with polyethyleneimine as a co-delivery system of TRAIL and endostatin for cervical cancer gene therapy. NANOSCALE RESEARCH LETTERS 2013; 8:161. [PMID: 23570619 PMCID: PMC3639870 DOI: 10.1186/1556-276x-8-161] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 01/17/2013] [Indexed: 05/20/2023]
Abstract
The efficient delivery of therapeutic genes into cells of interest is a critical challenge to broad application of non-viral vector systems. In this research, a novel TPGS-b-(PCL-ran-PGA) nanoparticle modified with polyethyleneimine was applied to be a vector of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and endostatin for cervical cancer gene therapy. Firstly, a novel biodegradable copolymer, TPGS-b-(PCL-ran-PGA), was synthesized and characterized. The nanoparticles were fabricated by an emulsion/solvent evaporation method and then further modified with polyethyleneimine (PEI) carrying TRAIL and/or endostatin genes. The uptake of pIRES2-EGFP and/or pDsRED nanoparticles by HeLa cells were observed by fluorescence microscopy and confocal laser scanning microscopy. The cell viability of TRAIL/endostatin-loaded nanoparticles in HeLa cells was assessed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide assay. Severe combined immunodeficient mice carrying HeLa tumor xenografts were treated in groups of six including phosphate-buffered saline control, blank TPGS-b-(PCL-ran-PGA) nanoparticles, blank TPGS-b-(PCL-ran-PGA)/PEI nanoparticles, and three types of gene nanoparticles. The activity was assessed using average increase in survival time, body weight, and solid tumor volume. All the specimens were then prepared as formalin-fixed and paraffin-embedded tissue sections for hematoxylin-eosin staining. The data showed that the nanoparticles could efficiently deliver plasmids into HeLa cells. The cytotoxicity of the HeLa cells was significantly increased by TRAIL/endostatin-loaded nanoparticles when compared with control groups. The use of TPGS in combination with TRAIL and endostatin had synergistic antitumor effects. In conclusion, the TRAIL/endostatin-loaded nanoparticles offer considerable potential as an ideal candidate for in vivo cancer gene delivery.
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Affiliation(s)
- Yi Zheng
- The Shenzhen Key Lab of Gene and Antibody Therapy, Center for Biotechnology and BioMedicine and Division of Life Science and Health, Graduate School at Shenzhen, Tsinghua University, L401, Tsinghua Campus, Xili University Town, Shenzhen, Guangdong Province, 518055, People's Republic of China
- School of Life Sciences, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Hongbo Chen
- The Shenzhen Key Lab of Gene and Antibody Therapy, Center for Biotechnology and BioMedicine and Division of Life Science and Health, Graduate School at Shenzhen, Tsinghua University, L401, Tsinghua Campus, Xili University Town, Shenzhen, Guangdong Province, 518055, People's Republic of China
- School of Life Sciences, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Xiaowei Zeng
- The Shenzhen Key Lab of Gene and Antibody Therapy, Center for Biotechnology and BioMedicine and Division of Life Science and Health, Graduate School at Shenzhen, Tsinghua University, L401, Tsinghua Campus, Xili University Town, Shenzhen, Guangdong Province, 518055, People's Republic of China
- School of Life Sciences, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Zhigang Liu
- School of Medicine, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Xiaojun Xiao
- School of Medicine, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Yongqiang Zhu
- The Shenzhen Key Lab of Gene and Antibody Therapy, Center for Biotechnology and BioMedicine and Division of Life Science and Health, Graduate School at Shenzhen, Tsinghua University, L401, Tsinghua Campus, Xili University Town, Shenzhen, Guangdong Province, 518055, People's Republic of China
- School of Life Sciences, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Dayong Gu
- The Shenzhen Key Lab of Gene and Antibody Therapy, Center for Biotechnology and BioMedicine and Division of Life Science and Health, Graduate School at Shenzhen, Tsinghua University, L401, Tsinghua Campus, Xili University Town, Shenzhen, Guangdong Province, 518055, People's Republic of China
- Institute of Disease Control and Prevention, Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen, 518045, People's Republic of China
| | - Lin Mei
- The Shenzhen Key Lab of Gene and Antibody Therapy, Center for Biotechnology and BioMedicine and Division of Life Science and Health, Graduate School at Shenzhen, Tsinghua University, L401, Tsinghua Campus, Xili University Town, Shenzhen, Guangdong Province, 518055, People's Republic of China
- School of Life Sciences, Tsinghua University, Beijing, 100084, People's Republic of China
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16
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Lim H, Noh J, Kim Y, Kim H, Kim J, Khang G, Lee D. Acid-Degradable Cationic Poly(ketal amidoamine) for Enhanced RNA Interference In Vitro and In Vivo. Biomacromolecules 2013; 14:240-7. [DOI: 10.1021/bm301669e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hyungsuk Lim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Joungyoun Noh
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Yerang Kim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Hyungmin Kim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Jihye Kim
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Gilson Khang
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Dongwon Lee
- Department
of BIN Fusion Technology and ‡Polymer Fusion Research Center, Department of Polymer·Nano Science and Technology, Chonbuk National University, Jeonju, 561-756, Korea
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17
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Wu M, Xia XM, Cui C, Yu P, Zhang Y, Liu L, Zhuo RX, Huang SW. Highly efficient loading of amorphous paclitaxel in mesoporous hematite nanorods and their in vitro antitumor activity. J Mater Chem B 2013; 1:1687-1695. [DOI: 10.1039/c3tb00472d] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Multilineage differentiation of human-derived dermal fibroblasts transfected with genes coated on PLGA nanoparticles plus growth factors. Biomaterials 2013; 34:582-97. [DOI: 10.1016/j.biomaterials.2012.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Accepted: 10/01/2012] [Indexed: 01/04/2023]
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19
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The use of anti-COX2 siRNA coated onto PLGA nanoparticles loading dexamethasone in the treatment of rheumatoid arthritis. Biomaterials 2012; 33:8600-12. [PMID: 22910222 DOI: 10.1016/j.biomaterials.2012.08.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 08/01/2012] [Indexed: 01/06/2023]
Abstract
In drug delivery systems, some genes have the potential to interrupt unnecessary gene expression in specific target cells. In this study, two types of drug, glucocorticoids and siRNA, were co-delivered into conditioned cells to inhibit the expression of unnecessary genes and proteins involved in arthritis. To deliver the two factors into a human chondrocyte cell line (C28/I2), dexamethasone was first loaded into PLGA nanoparticles, and then drug-loaded PLGA nanoparticles were complexed with poly(ethyleneimine) (PEI)/siRNA. To test the co-delivery of siRNA and dexamethasone into chondrocytes, cells were transfected with green fluorescence protein siRNA (GFP siRNA) and drugs. After transfection with GFP siRNA, 70% reduction of C28/I2 cells demonstrated GFP expression, whereas MOCK carrying PLGA nanoparticles and PLGA nanoparticles without siRNA showed no differences of GFP expressions. COX-2 and iNOS productions in C28/I2 cells were examined after TNF-α pre-treatment to induce expression of arthritis-related molecules in vitro. The reduction of gene and protein expression associated with arthritis by transfection with dexamethasone-loaded and COX-2 siRNA-complexed PLGA nanoparticles was evaluated by RT-PCR, real time-qPCR, immunoblotting, immunohistochemistry, and immunofluorescence imaging.
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20
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Xiang S, Su J, Tong H, Yang F, Tong W, Yuan W, Wu F, Wang C, Jin T, Dai K, Zhang X. Biscarbamate cross-linked low molecular weight PEI for delivering IL-1 receptor antagonist gene to synoviocytes for arthritis therapy. Biomaterials 2012; 33:6520-32. [PMID: 22695070 DOI: 10.1016/j.biomaterials.2012.05.044] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Accepted: 05/20/2012] [Indexed: 01/08/2023]
Abstract
Cytoxicity is an essential concern for polyethyleneimine 25 kDa (PEI 25 kDa), a widely reported, highly effective transfection agent used in gene delivery. In our recent experiments, Small molecular weight cross-linked poly(ethylene imine) by biscarbamate linkage (PEI-Bu) (Mn: 3278, Mw: 4289) can reduce target cell apoptosis induced by polycationic transfection, and has almost the same DNA condensation capability as PEI 25 kDa. PEI-Bu showed significantly higher activity and lower cytotoxicity than PEI 25 kDa in transfecting the anti-inflammatory cytokine interleukin-1 receptor antagonist (IL-1Ra) gene to rat synoviocytes, an optimal target for arthritis treatment. The expression of IL-1Ra in synoviocytes then suppresses the expression of metalloproteases 13 (MMP13) gene, which is responsible for cartilage destruction regulated by IL-1β in arthritis. In conclusion, PEI-Bu is a promising tool for delivering IL-1Ra gene to synoviocytes for arthritis therapy.
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Affiliation(s)
- Shengnan Xiang
- The Key Laboratory of Stem Cell Biology, Shanghai Jiao Tong University School of Medicine (SJTUSM) & Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences (CAS), Shanghai, PR China
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21
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Jeon SY, Park JS, Yang HN, Woo DG, Park KH. Co-delivery of SOX9 genes and anti-Cbfa-1 siRNA coated onto PLGA nanoparticles for chondrogenesis of human MSCs. Biomaterials 2012; 33:4413-23. [DOI: 10.1016/j.biomaterials.2012.02.051] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 02/27/2012] [Indexed: 01/09/2023]
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22
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Kulkarni A, Deng W, Hyun SH, Thompson DH. Development of a low toxicity, effective pDNA vector based on noncovalent assembly of bioresponsive amino-β-cyclodextrin:adamantane-poly(vinyl alcohol)-poly(ethylene glycol) transfection complexes. Bioconjug Chem 2012; 23:933-40. [PMID: 22551467 DOI: 10.1021/bc2005158] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A host:guest-derived gene delivery vector has been developed, based on the self-assembly of cationic β-CD derivatives with a poly(vinyl alcohol) (MW 27 kDa) (PVA) main chain polymer bearing poly(ethylene glycol) (MW 750) (PEG) or MW 2000 PEG and acid-labile adamantane-modified (Ad) grafts through an acid-sensitive benzylidene acetal linkage. These components were investigated for their ability to promote supramolecular complex formation with pDNA using two different assembly schemes, involving either precomplexation of the pendent Ad-PVA-PEG polymer with the cationic β-CD derivatives before pDNA condensation (method A) or pDNA condensation with the cationic β-CD derivatives prior to addition of Ad-PVA-PEG to engage host:guest complexation (method B). The pendent polymers were observed to degrade under acidic conditions while remaining intact for more than 5 days at pH 7. HeLa cell culture data show that these materials have 10(3)-fold lower cytotoxicities than 25 kDa bPEI while maintaining transfection efficiencies that are superior to those observed for this benchmark cationic polymer transfection reagent when the method A assembly scheme is employed. These findings suggest that degradable cationic polymer constructs employing multivalent host:guest interactions may be an effective and low-toxicity vehicle for delivering nucleic acid cargo to target cells.
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Affiliation(s)
- Aditya Kulkarni
- Departments of Chemistry and Biomedical Engineering, Purdue University , 560 Oval Drive, West Lafayette, Indiana 47907, United States
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23
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Kun H, Wei Z, Xuan L, Xiubin Y. Biocompatibility of a Novel Poly(butyl succinate) and Polylactic Acid Blend. ASAIO J 2012; 58:262-7. [DOI: 10.1097/mat.0b013e31824709ee] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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24
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Luo K, Li C, Li L, She W, Wang G, Gu Z. Arginine functionalized peptide dendrimers as potential gene delivery vehicles. Biomaterials 2012; 33:4917-27. [PMID: 22484048 DOI: 10.1016/j.biomaterials.2012.03.030] [Citation(s) in RCA: 149] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 03/08/2012] [Indexed: 01/24/2023]
Abstract
The quest for highly efficient and safe gene delivery systems has become the key factor for successful application of gene therapy. Peptide dendrimers are currently investigated as excellent candidates for non-viral gene delivery vectors. In this study, we report the synthesis and characterization of arginine functionalized peptide dendrimer-based vectors ranging from 5th generation (G5A) to 6th generation (G6A) via click chemistry, and their use for gene transfection in vitro and in vivo. The dendrimers can condense plasmid DNA (pDNA) and protect pDNAs from nuclease digestion. Both atomic force microscopy (AFM) and dynamic light scattering (DLS) revealed that the sizes of dendrimer/DNA particles were within 180-250 nm range. In vitro studies showed that the functionalized peptide dendrimers provided serum independent and high transfection efficiency on all studied cells, as over 2 fold higher than that of branched polyetherimide (PEI) in the presence of serum. Dendrimer G5A with molecular weight of 17 kDa demonstrated 6-fold transfection activity than PEI in breast tumor models, as well as good biosafety proved by in vitro and in vivo toxicity evaluation. However, G6A with molecular weight of 46 kDa showed much higher cytotoxicity. The functionalized dendrimer G5A with optimal generation may be therefore a potential candidate for gene delivery vehicle.
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Affiliation(s)
- Kui Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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25
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Rose LC, Kucharski C, Uludağ H. Protein expression following non-viral delivery of plasmid DNA coding for basic FGF and BMP-2 in a rat ectopic model. Biomaterials 2012; 33:3363-74. [DOI: 10.1016/j.biomaterials.2012.01.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Accepted: 01/14/2012] [Indexed: 12/31/2022]
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26
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Liu WM, Liu M, Xue YN, Peng N, Xia XM, Zhuo RX, Huang SW. Poly(amidoamine)s with pendant primary amines and flexible backbone for enhanced nonviral gene delivery: Transfection and intracellular trafficking. J Biomed Mater Res A 2012; 100:872-81. [DOI: 10.1002/jbm.a.33309] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 08/07/2011] [Accepted: 09/27/2011] [Indexed: 11/10/2022]
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27
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Bansal R, Tripathi SK, Gupta KC, Kumar P. Lipophilic and cationic triphenylphosphonium grafted linear polyethylenimine polymers for efficient gene delivery to mammalian cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35243e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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28
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Current progress of polymeric gene vectors. SCIENCE CHINA. LIFE SCIENCES 2011; 54:1064-7. [PMID: 22173315 DOI: 10.1007/s11427-011-4245-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 11/30/2011] [Indexed: 01/30/2023]
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29
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García-Saucedo C, Field JA, Otero-Gonzalez L, Sierra-Álvarez R. Low toxicity of HfO2, SiO2, Al2O3 and CeO2 nanoparticles to the yeast, Saccharomyces cerevisiae. JOURNAL OF HAZARDOUS MATERIALS 2011; 192:1572-9. [PMID: 21782338 DOI: 10.1016/j.jhazmat.2011.06.081] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Revised: 06/26/2011] [Accepted: 06/28/2011] [Indexed: 05/24/2023]
Abstract
Increasing use of nanomaterials necessitates an improved understanding of their potential impact on environment health. This study evaluated the cytotoxicity of nanosized HfO(2), SiO(2), Al(2)O(3) and CeO(2) towards the eukaryotic model organism Saccharomyces cerevisiae, and characterized their state of dispersion in bioassay medium. Nanotoxicity was assessed by monitoring oxygen consumption in batch cultures and by analysis of cell membrane integrity. CeO(2), Al(2)O(3), and HfO(2) nanoparticles were highly unstable in yeast medium and formed micron-sized, settleable agglomerates. A non-toxic polyacrylate dispersant (Dispex A40) was used to improve nanoparticle stability and determine the impact of enhanced dispersion on toxicity. None of the NPs tested without dispersant inhibited O(2) uptake by yeast at concentrations as high as 1000 mg/L. Dispersant supplementation only enhanced the toxicity of CeO(2) (47% at 1000 mg/L). Dispersed SiO(2) and Al(2)O(3) (1000 mg/L) caused cell membrane damage, whereas dispersed HfO(2) and CeO(2) did not cause significant disruption of membrane integrity at the same concentration. These results suggest that the O(2) uptake inhibition observed with dispersed CeO(2) NPs was not due to reduced cell viability. This is the first study evaluating toxicity of nanoscale HfO(2), SiO(2), Al(2)O(3) and CeO(2) to S. cerevisiae. Overall the results obtained demonstrate that these nanomaterials display low or no toxicity to yeast.
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Affiliation(s)
- Citlali García-Saucedo
- Department of Chemical and Environmental Engineering, University of Arizona, PO Box 210011, Tucson, AZ, USA.
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30
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Lin D, Huang Y, Jiang Q, Zhang W, Yue X, Guo S, Xiao P, Du Q, Xing J, Deng L, Liang Z, Dong A. Structural contributions of blocked or grafted poly(2-dimethylaminoethyl methacrylate) on PEGylated polycaprolactone nanoparticles in siRNA delivery. Biomaterials 2011; 32:8730-42. [PMID: 21885115 DOI: 10.1016/j.biomaterials.2011.07.089] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 07/30/2011] [Indexed: 12/13/2022]
Abstract
The multiformity in polymer structure and conformation design provides a great potential in improving the gene silencing efficiency of siRNA by polymer vectors. In order to provide information on the polymer design for siRNA delivery, the structural contributions of blocked or grafted poly(2-dimethylaminoethyl methacrylate) on PEGylated polycaprolactone nanoparticles (NPs) in siRNA delivery were studied. Herein, two kinds of self-assembly nanoparticles (NPs) formed by amphiphilic cationic polymers, methoxy poly(ethylene glycol)-block-polycaprolactone-block-poly(2-dimethylaminoethyl methacrylate) (mPEG-PCL-b-PDMAEMA, PECbD) and methoxy poly(ethylene glycol)-block-(polycaprolactone-graft-poly(2-dimethylaminoethyl methacrylate)) (mPEG-PCL-g-PDMAEMA, PECgD), were used to deliver siRNA for in vitro and in vivo studies. The physiochemical properties including size and zeta potential of PECbD NPs/siRNA and PECgD NPs/siRNA complexes were characterized. In vitro cytotoxicity, cellular uptake and siRNA knockdown efficiency were evaluated in HeLa-Luc cells. The endosome escape and intracellular distribution of PECbD NPs/siRNA and PECgD NPs/siRNA in HeLa-Luc cells were also observed. In vivo polymer mediated siRNA delivery and the complexes distribution in isolated organs were studied using mice and tumor-bearing mice. At the same total degree of polymerization (DP) of DMAEMA, PECgD NPs/siRNA complexes possessed higher zeta potentials than PECbD NPs/siRNA complexes (at the same N/P ratio), which may be the reason that PECgD NPs/siRNA complexes can deliver more siRNA into the cytoplasm and lead to higher in vitro luciferase and lamin A/C silencing efficiency than PECbD NPs/siRNA complexes. The in vivo imaging measurement and histochemical analysis also confirmed that siRNA could be delivered to lungs, livers, pancreas and HeLa-Luc tumors more efficiently by PECgD NPs than PECbD NPs. Meanwhile, the PDMAEMA chains of PECgD could be shortened which provides benefits for clearing. Therefore, PECgD NPs have great potential to be used as efficient non-viral carriers for in vivo siRNA delivery.
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Affiliation(s)
- Daoshu Lin
- Department of Polymer Science and Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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31
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Piest M, Engbersen JF. Effects of charge density and hydrophobicity of poly(amido amine)s for non-viral gene delivery. J Control Release 2010; 148:83-90. [DOI: 10.1016/j.jconrel.2010.07.109] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Revised: 07/11/2010] [Accepted: 07/18/2010] [Indexed: 10/19/2022]
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32
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Kim JH, Park JS, Yang HN, Woo DG, Jeon SY, Do HJ, Lim HY, Kim JM, Park KH. The use of biodegradable PLGA nanoparticles to mediate SOX9 gene delivery in human mesenchymal stem cells (hMSCs) and induce chondrogenesis. Biomaterials 2010; 32:268-78. [PMID: 20875683 DOI: 10.1016/j.biomaterials.2010.08.086] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Accepted: 08/27/2010] [Indexed: 12/16/2022]
Abstract
In stem cell therapy, transfection of specific genes into stem cells is an important technique to induce cell differentiation. To perform gene transfection in human mesenchymal stem cells (hMSCs), we designed and fabricated a non-viral vector system for specific stem cell differentiation. Several kinds of gene carriers were evaluated with regard to their transfection efficiency and their ability to enhance hMSCs differentiation. Of these delivery vehicles, biodegradable poly (DL-lactic-co-glycolic acid) (PLGA) nanoparticles yielded the best results, as they complexed with high levels of plasmid DNA (pDNA), allowed robust gene expression in hMSCs, and induced chondrogenesis. Polyplexing with polyethylenimine (PEI) enhanced the cellular uptake of SOX9 DNA complexed with PLGA nanoparticles both in vitro and in vivo. The expression of enhanced green fluorescent protein (EGFP) and SOX9 increased up to 75% in hMSCs transfected with PEI/SOX9 complexed PLGA nanoparticles 2 days after transfection. SOX9 gene expression was evaluated by RT-PCR, real time-qPCR, glycosaminoglycan (GAG)/DNA levels, immunoblotting, histology, and immunofluorescence.
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Affiliation(s)
- Jae-Hwan Kim
- Department of Biomedical Science, College of Life Science, CHA University 606-16, Yeoksam 1-Dong, Kangnam-gu, Seoul 135-081, Republic of Korea
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