1
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Leung HM, Liu LS, Cai Y, Li X, Huang Y, Chu HC, Chin YR, Lo PK. Light-Activated Nanodiamond-Based Drug Delivery Systems for Spatiotemporal Release of Antisense Oligonucleotides. Bioconjug Chem 2024; 35:623-632. [PMID: 38659333 DOI: 10.1021/acs.bioconjchem.4c00087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Nanodiamonds (NDs) are considered promising delivery platforms, but inaccurate and uncontrolled release of drugs at target sites is the biggest challenge of NDs in precision medicine. This study presents the development of phototriggerable ND-based drug delivery systems, utilizing ortho-nitrobenzyl (o-NB) molecules as photocleavable linkers between drugs and nanocarriers. UV irradiation specifically cleaved o-NB molecules and then was followed by releasing antisense oligonucleotides from ND-based carriers in both buffer and cellular environments. This ND system carried cell nonpermeable therapeutic agents for bypassing lysosomal trapping and degradation. The presence of fluorescent nitrogen-vacancy centers also allowed NDs to serve as biological probes for tracing in cells. We successfully demonstrated phototriggered release of antisense oligonucleotides from ND-based nanocarriers, reactivating their antisense functions. This highlights the potential of NDs, photocleavable linkers, and light stimuli to create advanced drug delivery systems for controlled drug release in disease therapy, opening possibilities for targeted and personalized treatments.
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Affiliation(s)
- Hoi Man Leung
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Ling Sum Liu
- Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 82 Wood Lane, London W12 0BZ, United Kingdom
| | - Yuzhen Cai
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Xinru Li
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Yizhi Huang
- Department of Biomedical Sciences and Tung Biomedical Sciences Centre, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Hoi Ching Chu
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Y Rebecca Chin
- Department of Biomedical Sciences and Tung Biomedical Sciences Centre, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Pik Kwan Lo
- Department of Chemistry and State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Kowloon, Hong Kong SAR, China
- Key Laboratory of Biochip Technology, Biotech and Health Care, Shenzhen Research Institute of City University of Hong Kong, 518057 Shenzhen, China
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2
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Tang D, Liu Y, Wang C, Li L, Al-Farraj SA, Chen X, Yan Y. Invasion by exogenous RNA: cellular defense strategies and implications for RNA inference. MARINE LIFE SCIENCE & TECHNOLOGY 2023; 5:573-584. [PMID: 38045546 PMCID: PMC10689678 DOI: 10.1007/s42995-023-00209-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 11/02/2023] [Indexed: 12/05/2023]
Abstract
Exogenous RNA poses a continuous threat to genome stability and integrity across various organisms. Accumulating evidence reveals complex mechanisms underlying the cellular response to exogenous RNA, including endo-lysosomal degradation, RNA-dependent repression and innate immune clearance. Across a variety of mechanisms, the natural anti-sense RNA-dependent defensive strategy has been utilized both as a powerful gene manipulation tool and gene therapy strategy named RNA-interference (RNAi). To optimize the efficiency of RNAi silencing, a comprehensive understanding of the whole life cycle of exogenous RNA, from cellular entry to its decay, is vital. In this paper, we review recent progress in comprehending the recognition and elimination of foreign RNA by cells, focusing on cellular entrance, intracellular transportation, and immune-inflammatory responses. By leveraging these insights, we highlight the potential implications of these insights for advancing RNA interference efficiency, underscore the need for future studies to elucidate the pathways and fates of various exogenous RNA forms, and provide foundational information for more efficient RNA delivery methods in both genetic manipulation and therapy in different organisms.
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Affiliation(s)
- Danxu Tang
- Laboratory of Marine Protozoan Biodiversity and Evolution, Marine College, Shandong University, Weihai, 264209 China
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
| | - Yan Liu
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
| | - Chundi Wang
- Laboratory of Marine Protozoan Biodiversity and Evolution, Marine College, Shandong University, Weihai, 264209 China
| | - Lifang Li
- Laboratory of Marine Protozoan Biodiversity and Evolution, Marine College, Shandong University, Weihai, 264209 China
| | - Saleh A. Al-Farraj
- Zoology Department, College of Science, King Saud University, 11451 Riyadh, Saudi Arabia
| | - Xiao Chen
- Laboratory of Marine Protozoan Biodiversity and Evolution, Marine College, Shandong University, Weihai, 264209 China
- Suzhou Research Institute, Shandong University, Suzhou, 215123 China
| | - Ying Yan
- Key Laboratory of Evolution and Marine Biodiversity (Ministry of Education) and Institute of Evolution and Marine Biodiversity, Ocean University of China, Qingdao, 266003 China
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3
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Wang C, Karlsson A, Oguin TH, Macintyre AN, Sempowski GD, McCarthy KR, Wang Y, Moody MA, Yuan F. Transient inhibition of lysosomal functions potentiates nucleic acid vaccines. Proc Natl Acad Sci U S A 2023; 120:e2306465120. [PMID: 37871214 PMCID: PMC10622924 DOI: 10.1073/pnas.2306465120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 09/01/2023] [Indexed: 10/25/2023] Open
Abstract
Nucleic acid vaccines have shown promising results in the clinic against infectious diseases and cancers. To robustly improve the vaccine efficacy and safety, we developed an approach to increase the intracellular stability of nucleic acids by transiently inhibiting lysosomal function in targeted tissues using sucrose. To achieve efficient and localized delivery of sucrose in animals, we designed a biomimetic lipid nanoparticle (LNP) to target the delivery of sucrose into mouse muscle cells. Using this approach, viral antigen expression in mouse muscle after DNA vaccination was substantially increased and prolonged without inducing local or systemic inflammation or toxicity. The same change in antigen expression would be achieved if the vaccine dose could be increased by 3,000 folds, which is experimentally and clinically impractical due to material restrictions and severe toxicity that will be induced by such a high dose of nucleic acids. The increase in antigen expression augmented the infiltration and activation of antigen-presenting cells, significantly improved vaccine-elicited humoral and T cell responses, and fully protected mice against the viral challenge at a low dose of vaccine. Based on these observations, we conclude that transient inhibition of lysosome function in target tissue by sucrose LNPs is a safe and potent approach to substantially improve nucleic acid-based vaccines.
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Affiliation(s)
- Chunxi Wang
- Department of Biomedical Engineering, Duke University, Durham, NC27708
| | - Amelia Karlsson
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
| | - Thomas H. Oguin
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
| | - Andrew N. Macintyre
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
- Department of Medicine, Duke University School of Medicine, Durham, NC27708
| | - Gregory D. Sempowski
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
- Department of Medicine, Duke University School of Medicine, Durham, NC27708
| | - Kevin R. McCarthy
- Center for vaccine research, University of Pittsburgh School of Medicine, Pittsburgh, PA15261
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA15261
| | - Yifei Wang
- Department of Biomedical Engineering, Duke University, Durham, NC27708
| | - M. Anthony Moody
- Duke Human Vaccine Institute, Duke University, Durham, NC27708
- Department of Pediatrics, Duke University School of Medicine, Durham, NC27708
| | - Fan Yuan
- Department of Biomedical Engineering, Duke University, Durham, NC27708
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4
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Chandra J, Molugulu N, Annadurai S, Wahab S, Karwasra R, Singh S, Shukla R, Kesharwani P. Hyaluronic acid-functionalized lipoplexes and polyplexes as emerging nanocarriers for receptor-targeted cancer therapy. ENVIRONMENTAL RESEARCH 2023; 233:116506. [PMID: 37369307 DOI: 10.1016/j.envres.2023.116506] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/17/2023] [Accepted: 06/23/2023] [Indexed: 06/29/2023]
Abstract
Cancer is an intricate disease that develops as a response to a combination of hereditary and environmental risk factors, which then result in a variety of changes to the genome. The cluster of differentiation (CD44) is a type of transmembrane glycoprotein that serves as a potential biomarker for cancer stem cells (CSC) and viable targets for therapeutic intervention in the context of cancer therapy. Hyaluronic acid (HA) is a linear polysaccharide that exhibits a notable affinity for the CD44 receptor. This characteristic renders it a promising candidate for therapeutic interventions aimed at selectively targeting CD44-positive cancer cells. Treating cancer via non-viral vector-based gene delivery has changed the notion of curing illness through the incorporation of therapeutic genes into the organism. The objective of this review is to provide an overview of various hyaluronic acid-modified lipoplexes and polyplexes as potential drug delivery methods for specific forms of cancer by effectively targeting CD44.
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Affiliation(s)
- Jyoti Chandra
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Nagashekhara Molugulu
- School of Pharmacy, Monash University, Bandar Sunway, Jalan Lagoon Selatan, 47500, Malaysia
| | - Sivakumar Annadurai
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Shadma Wahab
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Ritu Karwasra
- Central Council for Research in Unani Medicine (CCRUM), Ministry of AYUSH, Government of India, Janakpuri, New Delhi 110058, India
| | - Surender Singh
- Department of Pharmacology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Rahul Shukla
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER-Raebareli), Bijnor-Sisendi Road, Sarojini Nagar, Near CRPF Base Camp, Lucknow, UP, 226002, India
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India; Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.
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5
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Roy P, Kreofsky NW, Brown ME, Van Bruggen C, Reineke TM. Enhancing pDNA Delivery with Hydroquinine Polymers by Modulating Structure and Composition. JACS AU 2023; 3:1876-1889. [PMID: 37502160 PMCID: PMC10369409 DOI: 10.1021/jacsau.3c00126] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/26/2023] [Accepted: 06/12/2023] [Indexed: 07/29/2023]
Abstract
Quinine is a promising natural product building block for polymer-based nucleic acid delivery vehicles as its structure enables DNA binding through both intercalation and electrostatic interactions. However, studies exploring the potential of quinine-based polymers for nucleic acid delivery applications (transfection) are limited. In this work, we used a hydroquinine-functionalized monomer, HQ, with 2-hydroxyethyl acrylate to create a family of seven polymers (HQ-X, X = mole percentage of HQ), with mole percentages of HQ ranging from 12 to 100%. We developed a flow cytometer-based assay for studying the polymer-pDNA complexes (polyplex particles) directly and demonstrate that polymer composition and monomer structure influence polyplex characteristics such as the pDNA loading and the extent of adsorption of serum proteins on polyplex particles. Biological delivery experiments revealed that maximum transgene expression, outperforming commercial controls, was achieved with HQ-25 and HQ-35 as these two variants sustained gene expression over 96 h. HQ-44, HQ-60, and HQ-100 were not successful in inducing transgene expression, despite being able to deliver pDNA into the cells, highlighting that the release of pDNA is likely the bottleneck in transfection for polymers with higher HQ content. Using confocal imaging, we quantified the extent of colocalization between pDNA and lysosomes, proving the remarkable endosomal escape capabilities of the HQ-X polymers. Overall, this study demonstrates the advantages of HQ-X polymers as well as provides guiding principles for improving the monomer structure and polymer composition, supporting the development of the next generation of polymer-based nucleic acid delivery vehicles harnessing the power of natural products.
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Affiliation(s)
- Punarbasu Roy
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Nicholas W. Kreofsky
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mary E. Brown
- University
Imaging Centers, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Craig Van Bruggen
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Theresa M. Reineke
- Department
of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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6
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Abstract
Many RNA delivery strategies require efficient endosomal uptake and release. To monitor this process, we developed a 2'-OMe RNA-based ratiometric pH probe with a pH-invariant 3'-Cy5 and 5'-FAM whose pH sensitivity is enhanced by proximal guanines. The probe, in duplex with a DNA complement, exhibits a 48.9-fold FAM fluorescence enhancement going from pH 4.5 to pH 8.0 and reports on both endosomal entrapment and release when delivered to HeLa cells. In complex with an antisense RNA complement, the probe constitutes an siRNA mimic capable of protein knockdown in HEK293T cells. This illustrates a general approach for measuring the localization and pH microenvironment of any oligonucleotide.
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Affiliation(s)
- Madison R. Herling
- Department of Chemistry, University of Pennsylvania, 231 S. 34th Street, Philadelphia, Pennsylvania 19104-6323, U.S.A
| | - Ivan J. Dmochowski
- Department of Chemistry, University of Pennsylvania, 231 S. 34th Street, Philadelphia, Pennsylvania 19104-6323, U.S.A
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7
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An In Vivo Screening Model for Investigation of Pathophysiology of Human Implantation Failure. Biomolecules 2022; 13:biom13010079. [PMID: 36671464 PMCID: PMC9856033 DOI: 10.3390/biom13010079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 12/14/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
To improve current infertility treatments, it is important to understand the pathophysiology of implantation failure. However, many molecules are involved in the normal biological process of implantation and the roles of each molecule and the molecular mechanism are not fully understood. This review highlights the hemagglutinating virus of Japan (HVJ; Sendai virus) envelope (HVJ-E) vector, which uses inactivated viral particles as a local and transient gene transfer system to the murine uterus during the implantation period in order to investigate the molecular mechanism of implantation. In vivo screening in mice using the HVJ-E vector system suggests that signal transducer and activator of transcription-3 (Stat-3) could be a diagnostic and therapeutic target for women with a history of implantation failure. The HVJ-E vector system hardly induces complete defects in genes; however, it not only suppresses but also transiently overexpresses some genes in the murine uterus. These features may be useful in investigating the pathophysiology of implantation failure in women.
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8
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Microencapsulated Multifunctionalized Graphene Oxide Equipped with Chloroquine for Efficient and Sustained siRNA Delivery. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5866361. [PMID: 35469347 PMCID: PMC9034959 DOI: 10.1155/2022/5866361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 03/15/2022] [Indexed: 11/26/2022]
Abstract
A multifunctionalized graphene oxide (GO)-based carrier with conjugation of aminated-polyethylene glycol (PEG-diamine), octaarginine (R8), and folic acid (FA), which also contains chloroquine (CQ), a lysosomotropic agent, is introduced. The cellular uptake mechanisms and intracellular targeting of FA-functionalized nanocarriers are examined. The localized releases of CQ and siRNA intracellular delivery are evaluated. Microencapsulation of the nanocarrier complexed with genes in layer-by-layer coating of alginate microbeads is also investigated. The covalently coconjugated FA with PEG and R8 provides a stable formulation with increased cellular uptake compared to FA-free carrier. The CQ-equipped nanocarrier shows a 95% release of CQ at lysosomal pH. The localized release of the drug inside the lysosomes is verified which accelerates the cargo discharge into cytoplasm.
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9
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Lee K, Jung I, Odom TW. Delivery Order of Nanoconstructs Affects Intracellular Trafficking by Endosomes. J Am Chem Soc 2022; 144:5274-5279. [PMID: 35302362 DOI: 10.1021/jacs.2c02276] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper reports how the endosomal pathways of nanoparticle (NP) constructs with different surface curvatures are affected by their order of delivery. Sequential incubation of cytosine-phosphate-guanine (CpG)-conjugated spiky and spherical gold NPs with macrophages resulted in different nanoconstruct ratios at the interior edges of endosomes. Application of spiky NPs after spherical NPs accelerated the formation of late-stage endosomes and resulted in larger endosomes, and the spherical NPs were enclosed by the spiky NPs. In contrast, the reverse incubation order produced an asymmetric distribution of the two nanoconstruct shapes in smaller endosomes. Macrophages with a higher proportion of the enclosed spherical NPs as well as a larger ratio of spiky to spherical NPs at the endosomal edge showed enhanced toll-like receptor 9 activation and secretion of proinflammatory cytokines and chemokines. Our results indicate that the subcellular trafficking of targeting nanoconstructs by vesicles is affected by both the delivery order and the endosomal distribution. Our study also establishes a new approach for nanoscale monitoring of intracellular therapeutics delivery with conventional electron microscopy.
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Affiliation(s)
- Kwahun Lee
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Insub Jung
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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10
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Hamelmann NM, Paats JWD, Paulusse JMJ. Cytosolic Delivery of Single-Chain Polymer Nanoparticles. ACS Macro Lett 2021; 10:1443-1449. [PMID: 35549017 DOI: 10.1021/acsmacrolett.1c00558] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cytosolic delivery of therapeutic agents is key to improving their efficacy, as the therapeutics are primarily active in specific organelles. Single-chain polymer nanoparticles (SCNPs) are a promising nanocarrier platform in biomedical applications due to their unique size range of 5-20 nm, modularity, and ease of functionalization. However, cytosolic delivery of SCNPs remains challenging. Here, we report the synthesis of active ester-functional SCNPs of approximately 10 nm via intramolecular thiol-Michael addition cross-linking and their functionalization with increasing amounts of tertiary amines 0 to 60 mol % to obtain SCNPs with increasing positive surface charges. No significant cytotoxicity was detected in bEND.3 cells for the SCNPs, except when SCNPs with high amounts of tertiary amines were incubated over prolonged periods of time at high concentrations. Cellular uptake of the SCNPs was analyzed, presenting different uptake behavior depending on the degree of functionalization. Confocal microscopy revealed successful cytosolic delivery of SCNPs with high degrees of functionalization (45%, 60%), while SCNPs with low amounts (0% to 30%) of tertiary amines showed high degrees of colocalization with lysosomes. This work presents a strategy to direct the intracellular location of SCNPs by controlled surface modification to improve intracellular targeting for biomedical applications.
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Affiliation(s)
- Naomi M. Hamelmann
- Department of Molecules and Materials, MESA+ Institute for Nanotechnology and TechMed Institute for Health and Biomedical Technologies, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jan-Willem D. Paats
- Department of Molecules and Materials, MESA+ Institute for Nanotechnology and TechMed Institute for Health and Biomedical Technologies, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jos M. J. Paulusse
- Department of Molecules and Materials, MESA+ Institute for Nanotechnology and TechMed Institute for Health and Biomedical Technologies, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
- Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen,
P.O. Box 30.001, 9700 RB Groningen, The Netherlands
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11
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Kumar R, Santa Chalarca CF, Bockman MR, Bruggen CV, Grimme CJ, Dalal RJ, Hanson MG, Hexum JK, Reineke TM. Polymeric Delivery of Therapeutic Nucleic Acids. Chem Rev 2021; 121:11527-11652. [PMID: 33939409 DOI: 10.1021/acs.chemrev.0c00997] [Citation(s) in RCA: 152] [Impact Index Per Article: 50.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The advent of genome editing has transformed the therapeutic landscape for several debilitating diseases, and the clinical outlook for gene therapeutics has never been more promising. The therapeutic potential of nucleic acids has been limited by a reliance on engineered viral vectors for delivery. Chemically defined polymers can remediate technological, regulatory, and clinical challenges associated with viral modes of gene delivery. Because of their scalability, versatility, and exquisite tunability, polymers are ideal biomaterial platforms for delivering nucleic acid payloads efficiently while minimizing immune response and cellular toxicity. While polymeric gene delivery has progressed significantly in the past four decades, clinical translation of polymeric vehicles faces several formidable challenges. The aim of our Account is to illustrate diverse concepts in designing polymeric vectors towards meeting therapeutic goals of in vivo and ex vivo gene therapy. Here, we highlight several classes of polymers employed in gene delivery and summarize the recent work on understanding the contributions of chemical and architectural design parameters. We touch upon characterization methods used to visualize and understand events transpiring at the interfaces between polymer, nucleic acids, and the physiological environment. We conclude that interdisciplinary approaches and methodologies motivated by fundamental questions are key to designing high-performing polymeric vehicles for gene therapy.
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Affiliation(s)
- Ramya Kumar
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | - Matthew R Bockman
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Craig Van Bruggen
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christian J Grimme
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Rishad J Dalal
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Mckenna G Hanson
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Joseph K Hexum
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Theresa M Reineke
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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12
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Åberg C, Poolman B. Glass-like characteristics of intracellular motion in human cells. Biophys J 2021; 120:2355-2366. [PMID: 33887228 DOI: 10.1016/j.bpj.2021.04.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 03/29/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022] Open
Abstract
The motion in the cytosol of microorganisms such as bacteria and yeast has been observed to undergo a dramatic slowing down upon cell energy depletion. These observations have been interpreted as the motion being "glassy," but whether this notion is useful also for active, motor-protein-driven transport in eukaryotic cells is less clear. Here, we use fluorescence microscopy of beads in human (HeLa) cells to probe the motion of membrane-surrounded structures that are carried along the cytoskeleton by motor proteins. Evaluating several hallmarks of glassy dynamics, we show that at short length scales, the motion is heterogeneous, is nonergodic, is well described by a model for the displacement distribution in glassy systems, and exhibits a decoupling of the exchange and persistence times. Overall, these results suggest that the short length scale behavior of objects that can be transported actively by motor proteins in human cells shares features with the motion in glassy systems.
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Affiliation(s)
- Christoffer Åberg
- Groningen Research Institute of Pharmacy, University of Groningen, Groningen, the Netherlands; Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands.
| | - Bert Poolman
- Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, the Netherlands
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13
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Blokpoel Ferreras LA, Chan SY, Vazquez Reina S, Dixon JE. Rapidly Transducing and Spatially Localized Magnetofection Using Peptide-Mediated Non-Viral Gene Delivery Based on Iron Oxide Nanoparticles. ACS APPLIED NANO MATERIALS 2021; 4:167-181. [PMID: 33763629 PMCID: PMC7978400 DOI: 10.1021/acsanm.0c02465] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/06/2020] [Indexed: 05/03/2023]
Abstract
Non-viral delivery systems are generally of low efficiency, which limits their use in gene therapy and editing applications. We previously developed a technology termed glycosaminoglycan (GAG)-binding enhanced transduction (GET) to efficiently deliver a variety of cargos intracellularly; our system employs GAG-binding peptides, which promote cell targeting, and cell penetrating peptides (CPPs), which enhance endocytotic cell internalization. Herein, we describe a further modification by combining gene delivery and magnetic targeting with the GET technology. We associated GET peptides, plasmid (p)DNA, and iron oxide superparamagnetic nanoparticles (MNPs), allowing rapid and targeted GET-mediated uptake by application of static magnetic fields in NIH3T3 cells. This produced effective transfection levels (significantly higher than the control) with seconds to minutes of exposure and localized gene delivery two orders of magnitude higher in targeted over non-targeted cell monolayers using magnetic fields (in 15 min exposure delivering GFP reporter pDNA). More importantly, high cell membrane targeting by GET-DNA and MNP co-complexes and magnetic fields allowed further enhancement to endocytotic uptake, meaning that the nucleic acid cargo was rapidly internalized beyond that of GET complexes alone (GET-DNA). Magnetofection by MNPs combined with GET-mediated delivery allows magnetic field-guided local transfection in vitro and could facilitate focused gene delivery for future regenerative and disease-targeted therapies in vivo.
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Affiliation(s)
- Lia A. Blokpoel Ferreras
- Regenerative
Medicine & Cellular Therapies Division, The University of Nottingham
Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K.
| | - Sze Yan Chan
- Regenerative
Medicine & Cellular Therapies Division, The University of Nottingham
Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K.
| | - Saul Vazquez Reina
- School
of Veterinary Sciences, University of Nottingham, Nottingham NG7 2RD, U.K.
| | - James E. Dixon
- Regenerative
Medicine & Cellular Therapies Division, The University of Nottingham
Biodiscovery Institute (BDI), School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K.
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14
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Wang C, Ding S, Wang S, Shi Z, Pandey NK, Chudal L, Wang L, Zhang Z, Wen Y, Yao H, Lin L, Chen W, Xiong L. Endogenous tumor microenvironment-responsive multifunctional nanoplatforms for precision cancer theranostics. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213529] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Zhang T, Zhang L, Wu X, Xu H, Hao P, Huang W, Zhang Y, Zan X. Hexahistidine-Metal Assemblies: A Facile and Effective Codelivery System of Subunit Vaccines for Potent Humoral and Cellular Immune Responses. Mol Pharm 2020; 17:2487-2498. [PMID: 32469222 DOI: 10.1021/acs.molpharmaceut.0c00212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Fully effective vaccines must induce both potent humoral and cellular immunities. Nanoparticles coencapsulating antigens and adjuvants have shown promising advantages as subunit vaccines in many aspects. However, the low loading efficiency and complicated synthesis process of these nanomaterials need to be improved. Here, we utilized hexahistidine (His6)-metal assembly (HmA) particles as carriers to codeliver ovalbumin peptides and cytosine-phosphate-guanine oligodeoxynucleotides (CpG ODNs). We found that antigen/adjuvant-carrying HmA can efficiently enter into antigen-presenting cells and help the antigens escape from lysosomes to induce the maturation of these cells in vitro, characterized by increasing expression levels of costimulatory molecules and cytokines. More importantly, the vaccines with high biocompatibility can elicit strong humoral and cellular immunities by improving secretion of specific antibodies and cytokines, enhancing activation of DCs and T cells in vivo. Our results suggest that HmA provides a new approach for subunit vaccines by codelivery of antigens and adjuvants.
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Affiliation(s)
- Tinghong Zhang
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, P. R. China.,Wenzhou Institute, University of Chinese Academy of Sciences (Wenzhou Institute of Biomaterials & Engineering), Wenzhou 325001, P. R. China
| | - Long Zhang
- Wenzhou Institute, University of Chinese Academy of Sciences (Wenzhou Institute of Biomaterials & Engineering), Wenzhou 325001, P. R. China
| | - Xiaoxiao Wu
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, P. R. China
| | - Hongyan Xu
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, P. R. China
| | - Pengyan Hao
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, P. R. China
| | - Wenjuan Huang
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, P. R. China
| | - Yagang Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xingjie Zan
- School of Ophthalmology and Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University, Wenzhou 325035, P. R. China.,Wenzhou Institute, University of Chinese Academy of Sciences (Wenzhou Institute of Biomaterials & Engineering), Wenzhou 325001, P. R. China
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16
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Zhang X, Xu Y, Zhang W, Fu X, Hao Z, He M, Trefilov D, Ning X, Ge H, Chen Y. Controllable Subtractive Nanoimprint Lithography for Precisely Fabricating Paclitaxel-Loaded PLGA Nanocylinders to Enhance Anticancer Efficacy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:14797-14805. [PMID: 32160750 DOI: 10.1021/acsami.9b21346] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanoimprint lithography presents a new strategy for preparing uniform nanostructures with predefined sizes and shapes and has the potential for developing nanosized drug delivery systems. However, the current nanoimprint lithography is a type of an additive nanofabrication method that has limited potential due to its restricted template-dependent innate character. Herein, we have developed a novel subtractive UV-nanoimprint lithography (sUNL) for the scalable fabrication of PLGA nanostructures with variable sizes for the first time. sUNL can not only fabricate a variety of predefined nanostructures by simply utilizing different nanoimprint molds but also precisely prepare scalable nanocylinders with different length to diameter ratios. Particularly, sUNL can fabricate paclitaxel-loaded PLGA nanocylinders (PTX-PLGA NCs) with high drug-loading rate of 40% and long storage stability over a year. We demonstrate that PTX-PLGA NCs target clathrin- and caveolae-mediated cell transport pathways and display increased cellular uptake, in comparison to traditional PTX-loaded PLGA nanoparticles (PTX-PLGA NPs), leading to enhanced anticancer effects. Therefore, sUNL represents a promising nanofabrication method for efficiently developing predefined drug delivery systems.
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Affiliation(s)
- Xiang Zhang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Yurui Xu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Weiwei Zhang
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Xinxin Fu
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Zongbin Hao
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Mengjia He
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Denis Trefilov
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Xinghai Ning
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
- Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing 210093, China
| | - Haixiong Ge
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
| | - Yanfeng Chen
- National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
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17
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Zhang H, Rombouts K, Raes L, Xiong R, De Smedt SC, Braeckmans K, Remaut K. Fluorescence-Based Quantification of Messenger RNA and Plasmid DNA Decay Kinetics in Extracellular Biological Fluids and Cell Extracts. ACTA ACUST UNITED AC 2020; 4:e2000057. [PMID: 32402121 DOI: 10.1002/adbi.202000057] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 02/26/2020] [Indexed: 12/22/2022]
Abstract
Extracellular and intracellular degradation of nucleic acids remains an issue in non-viral gene therapy. Understanding biodegradation is critical for the rational design of gene therapeutics in order to maintain stability and functionality at the target site. However, there are only limited methods available that allow determining the stability of genetic materials in biological environments. In this context, the decay kinetics of fluorescently labeled plasmid DNA (pDNA) and messenger RNA (mRNA) in undiluted biological samples (i.e., human serum, human ascites, bovine vitreous) and cell extracts is studied using fluorescence correlation spectroscopy (FCS) and single particle tracking (SPT). It is demonstrated that FCS is suitable to follow mRNA degradation, while SPT is better suited to investigate pDNA integrity. The half-life of mRNA and pDNA is ≈1-2 min and 1-4 h in biological samples, respectively. The resistance against biodegradation drastically improves by complexation with lipid-based carriers. Taken together, FCS and SPT are able to quantify the integrity of mRNA and pDNA, respectively, as a function of time, both in the extracellular biological fluids and cell extracts. This in turn allows to focus on the important but less understood issue of nucleic acids degradation in more detail and to rationally optimize gene delivery system as therapeutics.
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Affiliation(s)
- Heyang Zhang
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Koen Rombouts
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Laurens Raes
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Ranhua Xiong
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Kevin Braeckmans
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Katrien Remaut
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
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18
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Deshayes S, Konate K, Dussot M, Chavey B, Vaissière A, Van TNN, Aldrian G, Padari K, Pooga M, Vivès E, Boisguérin P. Deciphering the internalization mechanism of WRAP:siRNA nanoparticles. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183252. [PMID: 32135145 DOI: 10.1016/j.bbamem.2020.183252] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/17/2020] [Accepted: 02/27/2020] [Indexed: 01/08/2023]
Abstract
Gene silencing mediated by double-stranded small interfering RNA (siRNA) has been widely investigated as a potential therapeutic approach for a variety of diseases and, indeed, the first therapeutic siRNA was approved by the FDA in 2018. As an alternative to the traditional delivery systems for nucleic acids, peptide-based nanoparticles (PBNs) have been applied successfully for siRNA delivery. Recently, we have developed amphipathic cell-penetrating peptides (CPPs), called WRAP allowing a rapid and efficient siRNA delivery into several cell lines at low doses (20 to 50 nM). In this study, using a highly specific gene silencing system, we aimed to elucidate the cellular uptake mechanism of WRAP:siRNA nanoparticles by combining biophysical, biological, confocal and electron microscopy approaches. We demonstrated that WRAP:siRNA complexes remain fully active in the presence of chemical inhibitors of different endosomal pathways suggesting a direct cell membrane translocation mechanism. Leakage studies on lipid vesicles indicated membrane destabilization properties of the nanoparticles and this was supported by the measurement of WRAP:siRNA internalization in dynamin triple-KO cells. However, we also observed some evidences for an endocytosis-dependent cellular internalization. Indeed, nanoparticles co-localized with transferrin, siRNA silencing was inhibited by the scavenger receptor A inhibitor Poly I and nanoparticles encapsulated in vesicles were observed by electron microscopy in U87 cells. In conclusion, we demonstrate here that the efficiency of WRAP:siRNA nanoparticles is mainly based on the use of multiple internalization mechanisms including direct translocation as well as endocytosis-dependent pathways.
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Affiliation(s)
- Sébastien Deshayes
- Centre de Recherche de Biologie cellulaire de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293, Montpellier Cedex 5, France
| | - Karidia Konate
- Centre de Recherche de Biologie cellulaire de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293, Montpellier Cedex 5, France
| | - Marion Dussot
- Centre de Recherche de Biologie cellulaire de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293, Montpellier Cedex 5, France
| | - Bérengère Chavey
- Centre de Recherche de Biologie cellulaire de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293, Montpellier Cedex 5, France; Sys2Diag, UMR 9005-CNRS/ALCEDIAG, 1682 Rue de la Valsière, 34184, Montpellier, CEDEX 4, France
| | - Anaïs Vaissière
- Centre de Recherche de Biologie cellulaire de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293, Montpellier Cedex 5, France
| | - Thi Nhu Ngoc Van
- Sys2Diag, UMR 9005-CNRS/ALCEDIAG, 1682 Rue de la Valsière, 34184, Montpellier, CEDEX 4, France
| | - Gudrun Aldrian
- Sys2Diag, UMR 9005-CNRS/ALCEDIAG, 1682 Rue de la Valsière, 34184, Montpellier, CEDEX 4, France
| | - Kärt Padari
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010 Tartu, Estonia
| | - Margus Pooga
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Eric Vivès
- Centre de Recherche de Biologie cellulaire de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293, Montpellier Cedex 5, France
| | - Prisca Boisguérin
- Centre de Recherche de Biologie cellulaire de Montpellier, CNRS UMR 5237, 1919 Route de Mende, 34293, Montpellier Cedex 5, France.
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19
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Ma XX, Xu JL, Jia YY, Zhang YX, Wang W, Li C, He W, Zhou SY, Zhang BL. Enhance transgene responses through improving cellular uptake and intracellular trafficking by bio-inspired non-viral vectors. J Nanobiotechnology 2020; 18:26. [PMID: 32005170 PMCID: PMC6995230 DOI: 10.1186/s12951-020-0582-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 01/18/2020] [Indexed: 11/10/2022] Open
Abstract
Background Gene therapy remains a significant challenge due to lots of barriers limiting the genetic manipulation technologies. As for non-viral delivery vectors, they often suffer insufficient performance due to inadequate cellular uptake and gene degradation in endosome or lysosome. The importance of overcoming these conserved intracellular barriers is increasing as the delivery of genetic cargo. Results A surface-functionalized non-viral vector involving the biomimetic mannitol moiety is initiated, which can control the cellular uptake and promote the caveolae-mediated pathway and intracellular trafficking, thus avoiding acidic and enzymatic lysosomal degradation of loaded gene internalized by clathrin-mediated pathway. Different degrees of mannitol moiety are anchored onto the surface of the nanoparticles to form bio-inspired non-viral vectors and CaP-MA-40 exhibits remarkably high stability, negligible toxicity, and significantly enhanced transgene expression both in vitro and in vivo. Conclusions This strategy highlights a paradigmatic approach to construct vectors that need precise intracellular delivery for innovative applications.
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Affiliation(s)
- Xi-Xi Ma
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.,Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Jing-Liang Xu
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.,Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Yi-Yang Jia
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.,Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Ya-Xuan Zhang
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.,Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Wei Wang
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.,Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Chen Li
- Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Wei He
- Department of Chemistry, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.
| | - Si-Yuan Zhou
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China.,Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China
| | - Bang-Le Zhang
- Department of Pharmaceutics, School of Pharmacy, Fourth Military Medical University, Xi'an, 710032, China. .,Key Laboratory of Pharmacology of the State Administration of Traditional Chinese Medicine, Fourth Military Medical University, Xi'an, 710032, China.
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20
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Liu Q, Jin Z, Huang W, Sheng Y, Wang Z, Guo S. Tailor-made ternary nanopolyplexes of thiolated trimethylated chitosan with pDNA and folate conjugated cis-aconitic amide-polyethylenimine for efficient gene delivery. Int J Biol Macromol 2019; 152:948-956. [PMID: 31759023 DOI: 10.1016/j.ijbiomac.2019.10.212] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/22/2019] [Accepted: 10/24/2019] [Indexed: 12/28/2022]
Abstract
To overcome the different extra-/intracellular barriers in gene delivery, tumor-targeted and pH/redox-responsive ternary polyplexes with charge-conversional properties were prepared through a modular self-assembly strategy. Firstly, the thiolated trimethylated chitosan (TMC-SH) was synthesized to crosslink and condense pDNA through electrostatic interaction and disulfide formation, which obtained the TMC-SS/pDNA binary polyplexes with redox-responsive gene release. To further endow the binary polyplexes with tumor targeting and endo/lysosomal pH-triggered charge-reversal properties, a folate conjugated cis-aconitic amide-polyethylenimine (FA-PEI-AcO) was synthesized to shield the positive TMC-SS/pDNA, generating the FA-PEI-AcO/TMC-SS/pDNA ternary polyplexes with a size of ~190 nm and negative surface-charges. The ζ-potential of the polyplexes was stable at physiological pH and increased rapidly from -14 mV to + 20 mV at pH 5.5 (endo/lysosomal pH) due to the breakages of acid-liable amide bonds and the subsequent de-shielding of FA-PEI-AcO layers, which might benefit the endo/lysosomal escape of the polyplexes. Afterward, the polyplexes could redox-responsively release gene at higher intracellular concentrations of glutathione. By taking advantage of such multi-responses, significantly enhanced transfection efficiency was achieved in vitro in Hela cells for the ternary polyplexes. These results suggested that the newly developed polyplexes had potential application for gene delivery.
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Affiliation(s)
- Qing Liu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhu Jin
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Wei Huang
- Department of Interventional Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin Road Number Two, Shanghai 200025, China; Department of Interventional Radiology, Ruijin Hospital Luwan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200020, China
| | - Yuanyuan Sheng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Zhongmin Wang
- Department of Interventional Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijin Road Number Two, Shanghai 200025, China; Department of Interventional Radiology, Ruijin Hospital Luwan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200020, China.
| | - Shengrong Guo
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
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21
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Nanocarriers for Protein Delivery to the Cytosol: Assessing the Endosomal Escape of Poly(Lactide-co-Glycolide)-Poly(Ethylene Imine) Nanoparticles. NANOMATERIALS 2019; 9:nano9040652. [PMID: 31018628 PMCID: PMC6523739 DOI: 10.3390/nano9040652] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/15/2019] [Accepted: 04/21/2019] [Indexed: 01/06/2023]
Abstract
Therapeutic proteins and enzymes are a group of interesting candidates for the treatment of numerous diseases, but they often require a carrier to avoid degradation and rapid clearance in vivo. To this end, organic nanoparticles (NPs) represent an excellent choice due to their biocompatibility, and cross-linked enzyme aggregates (CLEAs)-loaded poly (lactide-co-glycolide) (PLGA) NPs have recently attracted attention as versatile tools for targeted enzyme delivery. However, PLGA NPs are taken up by cells via endocytosis and are typically trafficked into lysosomes, while many therapeutic proteins and enzymes should reach the cellular cytosol to perform their activity. Here, we designed a CLEAs-based system implemented with a cationic endosomal escape agent (poly(ethylene imine), PEI) to extend the use of CLEA NPs also to cytosolic enzymes. We demonstrated that our system can deliver protein payloads at cytoplasm level by two different mechanisms: Endosomal escape and direct translocation. Finally, we applied this system to the cytoplasmic delivery of a therapeutically relevant enzyme (superoxide dismutase, SOD) in vitro.
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22
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Liu Y, Li Q, Xiong X, Huang Y, Zhou Z. Enhanced cellular uptake by non-endocytic pathway for tumor therapy. J Mater Chem B 2018; 6:7411-7419. [PMID: 32254742 DOI: 10.1039/c8tb01698d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Endosome/lysosome, as the potential risk of therapeutic inactivation resulting from physical obstruction and a number of acid hydrolases, is a bottleneck in effective intracellular delivery which needs to be overcome. One promising strategy to avoid this barrier is to deliver therapeutic agents directly into the cytoplasm. In this study, CLIP6 peptide (KVRVRVRVDPPTRVRERVK-NH2) which can facilitate non-endosomal cell entry and anticancer drug doxorubicin (DOX) were covalently grafted to N-(2-hydroxypropyl)methacrylamide (HPMA) backbone (P-DOX-CLIP6). As a result, CLIP6 peptide modification increased the cellular uptake of DOX-loaded HPMA copolymers. Importantly, it effectively reduced lysosomal accumulation, leading to stronger proliferation inhibition and superior growth inhibition effect on three-dimensional tumor spheroids, compared to unmodified HPMA copolymer conjugates. Furthermore, P-CLIP6-DOX induced the highest therapeutic efficacy in HeLa tumor-bearing nude mice. Meanwhile, no significant systemic toxicity was observed during the treatment. In conclusion, this study provided a promising strategy to efficiently deliver drug candidates which were limited by endo/lysosomal trapping.
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Affiliation(s)
- Yanxi Liu
- Key Laboratory of Drug Targeting and Drug Delivery System, Ministry of Education, West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, P. R. China.
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23
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Alhaji SY, Ngai SC, Abdullah S. Silencing of transgene expression in mammalian cells by DNA methylation and histone modifications in gene therapy perspective. Biotechnol Genet Eng Rev 2018; 35:1-25. [PMID: 30514178 DOI: 10.1080/02648725.2018.1551594] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
DNA methylation and histone modifications are vital in maintaining genomic stability and modulating cellular functions in mammalian cells. These two epigenetic modifications are the most common gene regulatory systems known to spatially control gene expression. Transgene silencing by these two mechanisms is a major challenge to achieving effective gene therapy for many genetic conditions. The implications of transgene silencing caused by epigenetic modifications have been extensively studied and reported in numerous gene delivery studies. This review highlights instances of transgene silencing by DNA methylation and histone modification with specific focus on the role of these two epigenetic effects on the repression of transgene expression in mammalian cells from integrative and non-integrative based gene delivery systems in the context of gene therapy. It also discusses the prospects of achieving an effective and sustained transgene expression for future gene therapy applications.
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Affiliation(s)
- Suleiman Yusuf Alhaji
- a Medical Genetics Laboratory, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences , Universiti Putra Malaysia, UPM , Serdang , Malaysia.,b Department of Human Anatomy , College of Medical Sciences, Abubakar Tafawa Balewa University Bauchi, ATBU , Bauchi , Nigeria
| | - Siew Ching Ngai
- c School of Biosciences, Faculty of Science , University of Nottingham Malaysia , Semenyih , Malaysia
| | - Syahril Abdullah
- a Medical Genetics Laboratory, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences , Universiti Putra Malaysia, UPM , Serdang , Malaysia.,d UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience , Universiti Putra Malaysia, UPM , Serdang , Malaysia
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24
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Wang C, Sun P, Wang G, Yuan P, Jiang R, Wang W, Huang W, Fan Q. Conjugated Polymer Brush Based on Poly(l-lysine) with Efficient Ovalbumin Delivery for Dendritic Cell Vaccine. ACS APPLIED BIO MATERIALS 2018; 1:1972-1982. [DOI: 10.1021/acsabm.8b00496] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Chao Wang
- Key Laboratory for Organic Electronics and Information Displays &Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Pengfei Sun
- Key Laboratory for Organic Electronics and Information Displays &Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Gaina Wang
- Key Laboratory for Organic Electronics and Information Displays &Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Pengcheng Yuan
- Key Laboratory for Organic Electronics and Information Displays &Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Rongcui Jiang
- Key Laboratory for Organic Electronics and Information Displays &Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
| | - Wenjun Wang
- Key Lab of Optical Communication Science and Technology of Shandong Province & School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252059, China
| | - Wei Huang
- Shaanxi Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, Shaanxi, China
| | - Quli Fan
- Key Laboratory for Organic Electronics and Information Displays &Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China
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25
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Zhang J, Wang C, Lu M, Xing H, Yang T, Cai C, Zhao X, Wei M, Yu J, Ding P. Intracellular distribution and internalization pathways of guanidinylated bioresponsive poly(amido amine)s in gene delivery. Asian J Pharm Sci 2018; 13:360-372. [PMID: 32104410 PMCID: PMC7032094 DOI: 10.1016/j.ajps.2018.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 11/26/2017] [Accepted: 02/26/2018] [Indexed: 12/11/2022] Open
Abstract
Guanidinylated bioresponsive poly(amido amine)s polymers, CAR-CBA and CHL-CBA, were synthesized by Michael-type addition reaction between guanidine hydrochloride (CAR) or chlorhexidine (CHL) and N,N'-cystaminebisacrylamide (CBA). Previous studies have shown that both polymers had high transfection efficiencies as gene delivery carriers. In this study, we investigated the nucleolus localization abilities and cellular internalization pathways of these two polymers in gene delivery. Each polymer condensed plasmid DNA (pDNA) and formed nanoparticle complexes, and then their transfection studies were performed in MCF-7 cells. Both complexes were found enriched in nucleolus after cellular transfection, and their transfection efficiencies were significantly improved when transfection was performed on MCF-7 cells arrested at M phase. The transfection efficiency of CAR-CBA-pDNA was inhibited by chlorpromazine, and cell endosomes were disrupted after being exposed to CAR-CBA-pDNA. In regards to CHL-CBA-pDNA, its transfection efficiency was not affected by three types of endocytosis inhibitors used in the study, and CHL-CBA-pDNA showed no effect on endosomes. Cellular lactate dehydrogenase release and membrane morphology were changed after cells were transfected by the two complexes. The results indicated that both CAR-CBA and CHL-CBA polymers demonstrated good nucleolus localization abilities. It was beneficial for transfection when cells were arrested at M phase. CAR-CBA-pDNA cellular internalization was involved with clathrin-mediated endocytosis pathway, and escaping from endosomal entrapment, while the cellular uptake of CHL-CBA-pDNA occurs via clathrin- and caveolae-independent mechanism.
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Key Words
- AFM, atomic force microscopy
- CAR, guanidine hydrochloride
- CBA, N,N’-cystaminebisacrylamide
- CHL, chlorhexidine
- CPPs, cell- penetrating peptides
- Cell cycle status
- DAPI, 2-(4-Amidinophenyl)-6-indolecarbamidine dihydrochloride
- DLS, dynamic light scattering
- DMEM, Dulbecco's Modification of Eagle's medium
- DiI, 1,1′-dioctadecyl-3,3,3′,3′-tetramethylindocarbocyanine perchlorate
- EGFP, enhanced green fluorescent protein
- Gua-SS-PAAs, guanidinylated disulfide containing poly(amido amine) polymers
- Guanidinylated poly(amido amine)s polymers
- Internalization pathways
- LDH, Lactate dehydrogenase
- NMR, nuclear magnetic resonance
- NOR, nucleolar organizing region
- Nucleolus localization
- OD, optical density
- PAAs, poly(amido, amine)s
- SS-PAAs, disulfide containing poly(amido, amine)
- pDNA, plasmid DNA
- rRNA, ribosomal RNA
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Affiliation(s)
- Jinmin Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Chunxi Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Mei Lu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Haonan Xing
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Tianzhi Yang
- Department of Basic Pharmaceutical Sciences, School of Pharmacy, Husson University, Bangor, ME, 04401, USA
| | - Cuifang Cai
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Xiaoyun Zhao
- Department of Microbiology and Cell Biology, School of life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Minjie Wei
- Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Jiankun Yu
- Department of Ion Channel Pharmacology, School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Pingtian Ding
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
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Hertz D, Leiske MN, Wloka T, Traeger A, Hartlieb M, Kessels MM, Schubert S, Qualmann B, Schubert US. Comparison of random and gradient amino functionalized poly(2-oxazoline)s: Can the transfection efficiency be tuned by the macromolecular structure? ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29000] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David Hertz
- Institute of Biochemistry I, Jena University Hospital - Friedrich Schiller University Jena, Nonnenplan 2; Jena 07743 Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
| | - Meike N. Leiske
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Thomas Wloka
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Anja Traeger
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Matthias Hartlieb
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
| | - Michael M. Kessels
- Institute of Biochemistry I, Jena University Hospital - Friedrich Schiller University Jena, Nonnenplan 2; Jena 07743 Germany
| | - Stephanie Schubert
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Institute of Pharmacy, Pharmaceutical Technology, Friedrich Schiller University Jena, Otto-Schott-Straße 41; Jena 07745 Germany
| | - Britta Qualmann
- Institute of Biochemistry I, Jena University Hospital - Friedrich Schiller University Jena, Nonnenplan 2; Jena 07743 Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
| | - Ulrich S. Schubert
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7; Jena 07743 Germany
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena, Humboldtstraße 10; Jena 07743 Germany
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27
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Cui Y, Shan W, Zhou R, Liu M, Wu L, Guo Q, Zheng Y, Wu J, Huang Y. The combination of endolysosomal escape and basolateral stimulation to overcome the difficulties of "easy uptake hard transcytosis" of ligand-modified nanoparticles in oral drug delivery. NANOSCALE 2018; 10:1494-1507. [PMID: 29303184 DOI: 10.1039/c7nr06063g] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Ligand-modified nanoparticles (NPs) are an effective tool to increase the endocytosis efficiency of drugs, but these functionalized NPs face the drawback of "easy uptake hard transcytosis" in the oral delivery of proteins and peptides. Adversely, the resulting deficiency in transcytosis has not attracted much attention. Herein, NPs modified with the low-density lipoprotein receptor (LDLR) ligand NH2-C6-[cMPRLRGC]c-NH2, i.e., peptide-22 (P22NPs) were fabricated to investigate strategies related to the enhancement of transcytosis. By systematically studying the intracellular trafficking of NPs, it was found that reduced transcytosis might be associated with the entrapment of P22NPs in endosomes or lysosomes and limited basolateral exocytosis. On this basis, the prevention of the endolysosomal entrapment of NPs and the acceleration of basolateral exocytosis should be considered as strategies to enhance the transcytosis of NPs. By screening chemicals that could help the endosomal/lysosomal escape of chemicals related to LDLR-mediated transcytosis, it was shown that hemagglutinin-2 (HA2) and metformin had higher abilities to enhance the exocytosis of P22NPs. The transcytosis efficiencies of insulin loaded in P22NPs were also investigated, and a 3.2-fold increase in transcytosis was observed in comparison with free insulin. The transcytosis efficiencies of insulin could be further increased by the addition of metformin or HA2 (3.6-fold or 4.1-fold higher than that of free insulin). Inspiringly, the simultaneous addition of the abovementioned two chemicals led to the highest transcytosis efficiency of insulin, which was up to 5.1-fold higher than that of free insulin. These results demonstrated that endolysosomal entrapment and basolateral exocytosis are two of the most important limiting steps for the "easy uptake hard transcytosis" of orally administered ligand-modified NPs. Moreover, our work provides a new point of view for the design of novel oral drug delivery systems.
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Affiliation(s)
- Yi Cui
- Key Laboratory of Drug Targeting and Drug Delivery System (Ministry of Education), West China School of Pharmacy, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu 610041, China.
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28
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Bus T, Traeger A, Schubert US. The great escape: how cationic polyplexes overcome the endosomal barrier. J Mater Chem B 2018; 6:6904-6918. [DOI: 10.1039/c8tb00967h] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Endo-lysosomal escape strategies of cationic polymer-mediated gene delivery at a glance.
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Affiliation(s)
- Tanja Bus
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Anja Traeger
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
| | - Ulrich S. Schubert
- Laboratory of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University Jena
- 07743 Jena
- Germany
- Jena Center for Soft Matter (JCSM)
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29
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Glycosylated and non-glycosylated quantum dot-displayed peptides trafficked indiscriminately inside lung cancer cells but discriminately sorted in normal lung cells: An indispensable part in nanoparticle-based intracellular drug delivery. Asian J Pharm Sci 2017; 13:197-211. [PMID: 32104393 PMCID: PMC7032100 DOI: 10.1016/j.ajps.2017.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/17/2017] [Accepted: 12/04/2017] [Indexed: 11/10/2022] Open
Abstract
Difference in sub-cellular trafficking of glycosylated and naked peptides, between normal and lung cancer cells, was established. Normal lung tissue discriminately sorted glycosylated from non-glycosylated peptides by allowing golgi localization of the glycosylated peptides while restricting golgi entry of the naked peptides. This mechanism was surprisingly not observed in its cancer cell counterpart. Lung cancer cells tend to allow unrestricted localization of both glycosylated and naked peptides in the golgi apparatus. This newly discovered difference in sub-cellular trafficking between normal and lung cancer cells could potentially be used as an effective strategy in targeted intracellular delivery, especially targeting golgi-resident enzymes for possible treatment of diseases associated with glycans and glycoproteins, such as, congenital disease of glycosylation (CDG). This very important detail in intracellular trafficking inside normal and cancer cells is an indispensable part in nanoparticle-based intracellular drug delivery.
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Gu J, Chen X, Fang X, Sha X. Retro-inverso d-peptide-modified hyaluronic acid/bioreducible hyperbranched poly(amido amine)/pDNA core-shell ternary nanoparticles for the dual-targeted delivery of short hairpin RNA-encoding plasmids. Acta Biomater 2017; 57:156-169. [PMID: 28442415 DOI: 10.1016/j.actbio.2017.04.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 03/29/2017] [Accepted: 04/20/2017] [Indexed: 01/08/2023]
Abstract
The active targeting of gene carriers is a powerful strategy for improving tumour-specific delivery and therapy. Although numerous l-peptide ligands play significant roles in the active targeting of nanomedicine, retro-inverso d-peptides have been explored as targeting ligands due to their superior stability and bioactivity in vivo. In this study, retro-inverso d-peptide (RIF7)-modified hyaluronic acid (HA)/bioreducible hyperbranched poly(amido amine) (RHB)/plasmid DNA (pDNA) ternary nanoparticles were successfully developed using the layer-by-layer method for the CD44-positive tumour-specific delivery of short hairpin RNA (shRNA)-encoding pDNA through the combination of the Anxa1 (tumour vasculature) and CD44 (tumour cell-surface) receptors, which mediated the dual targeting. The potential of these newly designed nanoparticles was evaluated by examining the efficacy of their cellular uptake and transfection in cell monolayers, tumour spheroids, and malignant xenograft animal models. With negligible cytotoxicity, the spherical-shaped RIF7-HA/RHB/pDNA nanoparticles were the direct result of an electrostatic complex that had efficiently targeted CD44-positive tumour delivery, penetration, and cellular uptake in vitro. The nanoparticles showed excellent target-specific gene transfection even in the presence of serum. The in vivo therapeutic effect of RIF7-HA/RHB/pDNA-shRNA nanoparticle-mediated shRNA targeting of the Cyclin gene (shCyclin) was evaluated in tumour-bearing mice. The RIF7-HA/RHB/pDNA-shCyclin nanoparticles significantly increased the survival time of tumour-bearing mice and substantially reduced tumour growth due to their extremely specific tumour-targeting activity. These results suggested that the combination of HA and retro-inverso peptide RIF7 significantly increased the therapeutic effect of pDNA-shCyclin-loaded nanoparticles for CD44-positive tumours. Thus, RIF7-HA-mediated multi-target ternary gene vectors are an efficient and promising strategy for the delivery of pDNA-shRNA in the targeted treatment of malignant and metastatic cancers. STATEMENT OF SIGNIFICANCE Although l-peptide ligands play significant roles in the active targeting of nanomedicine, retro-inverso d-peptides have been explored as targeting ligands due to their superior stability and bioactivity in vivo. Retro-inverso peptide RIF7 was designed as a ligand of Anxa1 receptor. The resultant peptide, RIF7, displayed high binding efficiency within Anxa1 receptor, which is highly expressed tumour vasculature cells and some tumour cells such as B16F10 and U87MG cells. The most important feature of RIF7 is its high stability in the blood, which is suitable and promising for application in vivo. Multifunctional RIF7-HA was then synthesized by conjugating the RIF7 peptide to HA, which was used to modify the surface of RHB/pDNA nanoparticles to prepare RIF7-HA/RHB/pDNA core-shell ternary nanoparticles for the dual-targeted delivery of shRNA-encoding plasmids in vitro and in vivo.
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Affiliation(s)
- Jijin Gu
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China; Laboratory for Drug Delivery and Biomaterials, Faculty of Pharmacy, University of Manitoba, 750 McDermot Ave, Winnipeg, Manitoba R3E 0T5, Canada
| | - Xinyi Chen
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xiaoling Fang
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xianyi Sha
- Key Laboratory of Smart Drug Delivery (Fudan University), Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China.
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31
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Lakey JRT, Young ATL, Pardue D, Calvin S, Albertson TE, Jacobson L, Cavanagh TJ. Nonviral Transfection of Intact Pancreatic Islets. Cell Transplant 2017. [DOI: 10.3727/000000001783986279] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- J. R. T. Lakey
- Department of Surgery, Surgical-Medical Research Institute, University of Alberta, Edmonton, Canada T6G 2N8
| | - A. T. L. Young
- Department of Surgery, Surgical-Medical Research Institute, University of Alberta, Edmonton, Canada T6G 2N8
| | - D. Pardue
- Roche Molecular Biochemicals, Indianapolis, IN
| | - S. Calvin
- Roche Molecular Biochemicals, Indianapolis, IN
| | | | - L. Jacobson
- Roche Molecular Biochemicals, Indianapolis, IN
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32
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Young ATL, Lakey JRT, Murray AG, Moore RB. Gene Therapy: A Lipofection Approach for Gene Transfer into Primary Endothelial Cells. Cell Transplant 2017. [DOI: 10.3727/000000002783985495] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Despite the great potential of gene therapy to become a new treatment modality in future medicine, there are still many limitations to overcome before this gene approach can pass to the stage of human trial. The foremost obstacle is the development of a safe, efficient, and efficacious vector system for in vivo gene application. This study evaluated the efficacy of lipofection as a gene delivery vehicle into primary endothelial cells. Transfection efficiency of several lipid-based reagents (Effectene, Fugene 6, DOTAP) was examined at experimental temperatures of 37°C, 24°C, and 6°C. Human umbilical vein endothelial cells (HUVECs) were transfected with the enhanced green fluorescent protein (EGFP) using precise amounts of DNA (Effectene, 0.2 μg; Fugene 6, 0.5 μg; DOTAP, 2.5 μg) and lipids (Effectene, 10 μl; Fugene 6, 6 μl; DOTAP, 15 μl) optimized in our laboratory. Duration of incubation in the DNA/lipid transfection mixture varied for each lipid transfectant as follows: 5 h for both Fugene 6 and DOTAP and 3 h for Effectene. Efficiency of transfection was quantified by microscopic evaluation of EFGP expression in a minimum of 100 cells per group. Transfection efficiencies achieved with these lipofection agents were 34 ± 1.3% (mean ± SEM), 33 ± 1.4%, and 18 ± 1.5% for Effectene, Fugene 6, and DOTAP, respectively, at 37°C. Transfection results were lower at 24°C with mean efficiencies of 26 ± 2.4% for Effectene, 14 ± 2.9% for Fugene 6, and 15 ± 3.2% for DOTAP. Furthermore, mean efficiencies at 6°C were 6 ± 0.5%, 8 ± 1.5%, and 6 ± 0.0% for Effectene, Fugene 6, and DOTAP, respectively. Efficiency of transfection appeared to be temperature dependent (ANOVA; p < 0.0001). In spite of a significant decrease (37°C vs. 24°C: p < 0.0001; 37°C vs. 6°C: p < 0.0001; 24°C vs. 6°C: p < 0.0115) in transfection efficiency at low temperatures, the successful in vitro gene manipulation renders lipofection a potential gene delivery strategy for in vivo gene therapy.
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Affiliation(s)
- A. T. L. Young
- Department of Surgery, Surgical-Medical Research Institute, University of Alberta, Edmonton, Canada T6G 2N8
| | - J. R. T. Lakey
- Department of Surgery, Surgical-Medical Research Institute, University of Alberta, Edmonton, Canada T6G 2N8
| | - A. G. Murray
- Department of Medicine, University of Alberta, Edmonton, Canada T6G 2N8
| | - R. B. Moore
- Department of Surgery, Surgical-Medical Research Institute, University of Alberta, Edmonton, Canada T6G 2N8
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Nano-biomimetic carriers are implicated in mechanistic evaluation of intracellular gene delivery. Sci Rep 2017; 7:41507. [PMID: 28128339 PMCID: PMC5269746 DOI: 10.1038/srep41507] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/20/2016] [Indexed: 12/31/2022] Open
Abstract
Several tissue specific non-viral carriers have been developed for gene delivery purposes. However, the inability to escape endosomes, undermines the efficacy of these carriers. Researchers inspired by HIV and influenza virus, have randomly used Gp41 and H5WYG fusogenic peptides in several gene delivery systems without any rational preference. Here for the first time, we have genetically engineered two Nano-biomimetic carriers composed of either HWYG (HNH) or Gp41 (GNH) that precisely provide identical conditions for the study and evaluation of these fusogenic peptides. The luciferase assay demonstrated a two-fold higher transfection efficiency of HNH compared to GNH. These nanocarriers also displayed equivalent properties in terms of DNA binding ability and DNA protection against serum nucleases and formed similar nanoparticles in terms of surface charge and size. Interestingly, hemolysis and cellular analysis demonstrated both of nanoparticles internalized into cells in similar rate and escaped from endosome with different efficiency. Furthermore, the structural analysis revealed the mechanisms responsible for the superior endosomal escaping capability of H5WYG. In conclusion, this study describes the rationale for using H5WYG peptide to deliver nucleic acids and suggests that using nano-biomimetic carriers to screen different endosomal release peptides, improves gene delivery significantly.
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A high-throughput bioimaging study to assess the impact of chitosan-based nanoparticle degradation on DNA delivery performance. Acta Biomater 2016; 46:129-140. [PMID: 27686038 DOI: 10.1016/j.actbio.2016.09.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/15/2016] [Accepted: 09/25/2016] [Indexed: 12/19/2022]
Abstract
By using imaging flow cytometry as a powerful statistical high-throughput technique we investigated the impact of degradation on the biological performance of trimethyl chitosan (TMC)-based nanoparticles (NPs). In order to achieve high transfection efficiencies, a precise balance between NP stability and degradation must occur. We altered the biodegradation rate of the TMC NPs by varying the degree of acetylation (DA) of the polymer (DA ranged from 4 to 21%), giving rise to NPs with different enzymatic degradation profiles. While this parameter did not affect NP size, charge or ability to protect plasmid DNA, NPs based on TMC with an intermediate DA (16%) showed the highest transfection efficiency. Subsequently, by means of a single quantitative technique, we were able to follow, for each tested formulation, major steps of the NP-mediated gene delivery process - NP cell membrane association, internalization and intracellular trafficking, including plasmid DNA transport towards the nucleus. NP cytotoxicity was also possible to determine by quantification of cell apoptosis. Overall, the obtained data revealed that the biodegradation rate of these NPs affects their intracellular trafficking and, consequently, their efficiency to transfect cells. Thus, one can use the polymer DA to modulate the NPs towards attaining different degradation rates and tune their bioactivity according to the desired application. Furthermore, this novel technical approach revealed to be a valuable tool for the initial steps of nucleic acid vector design. STATEMENT OF SIGNIFICANCE By changing the biodegradation rate of trimethyl chitosan-based nanoparticles (NPs) one was able to alter the NP ability to protect or efficiently release DNA and consequently, to modulate their intracellular dynamics. To address the influence of NP degradation rate in their transfection efficiency we took advantage of imaging flow cytometry, a high-throughput bioimaging technique, to unravel some critical aspects about NP formulation such as the distinction between internalized versus cell-associated/adsorbed NP, and even explore NP intracellular localization. Overall, our work provides novel information about the importance of vector degradation rate for gene delivery into cells, as a way to tune gene expression as a function of the desired application, and advances novel approaches to optimize nanoparticle formulation.
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35
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Alajangi HK, Natarajan P, Vij M, Ganguli M, Santhiya D. Role of Unmodified Low Generation - PAMAM Dendrimers in Efficient Non-Toxic Gene Transfection. ChemistrySelect 2016. [DOI: 10.1002/slct.201600576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Hema Kumari Alajangi
- Department of Applied Chemistry and Polymer Technology; Delhi Technological University
| | | | - Manika Vij
- CSIR-Institute of Genomics and Integrative Biology; Mathura Road Delhi
| | - Munia Ganguli
- CSIR-Institute of Genomics and Integrative Biology; Mathura Road Delhi
| | - Deenan Santhiya
- Department of Applied Chemistry and Polymer Technology; Delhi Technological University
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36
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Diener Y, Bosio A, Bissels U. Delivery of RNA-based molecules to human hematopoietic stem and progenitor cells for modulation of gene expression. Exp Hematol 2016; 44:991-1001. [PMID: 27576131 DOI: 10.1016/j.exphem.2016.08.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 08/01/2016] [Accepted: 08/18/2016] [Indexed: 12/26/2022]
Abstract
Gene modulation of human hematopoietic stem and progenitor cells (HSPCs) harbors great potential for therapeutic application of these cells and presents a versatile tool in basic research to enhance our understanding of HSPC biology. However, stable genetic modification might be adverse, particularly in clinical settings. Here, we review a broad range of approaches to transient, nonviral modulation of protein expression with a focus on RNA-based methods. We compare different delivery methods and describe the usefulness of RNA molecules for overexpression as well as downregulation of proteins in HSPCs.
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Affiliation(s)
| | | | - Ute Bissels
- Miltenyi Biotec GmbH, Bergisch Gladbach, Germany.
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Chiellini F, Dinucci D, Bartoli C, Piras AM, Chiellini E. Intracellular Fate Investigation of Bio-Eliminable Polymeric Nanoparticles by Confocal Laser Scanning Microscopy. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911507084821] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
This is a study of the in vitro cytotoxicity and intracellular fate of poly[(glycylglycinemethacrylamide)-co-N-(2-hydroxypropylmethacrylamide y)] bio-eliminable polymer samples and relative nanoparticles in Balb/c 3T3 cloned A31 mouse embryo fibroblasts cell line by using Confocal Laser Scanning Microscopy (CLSM). Nanoparticles were prepared by co-precipitating the polymers with fluorescein labeled human serum albumin (HSA-FITC) as the fluorescent probe and as the model protein drug. The toxicity of the polymers containing 25, 50 and 100%, respectively, of (glycylglycinemethacrylamide) x (GGMA) was investigated in terms of cytoskeleton morphology by exposing cells to various concentrations of polymers for 24 h. Under normal culture conditions, fibroblast cells exhibit characteristic spreading and shape, however, when the cell cultures were subjected to chemical, metabolic or physical stress, their morphology changed reducing their visibility. The polymers with the lower glycine content exert a lower toxicity even at high concentrations [8.5mg/mL]. The cellular uptake of nanoparticles was determined by incubating fibroblasts with HSA-FITC loaded particles and HSA-FITC alone at three different time points. The results indicate that nanoparticles were up-taken by the cells in a time dependent fashion. Preliminary evaluation of the intracellular fate of the prepared nanoparticles indicate their possible lysosomal escape.
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Affiliation(s)
- Federica Chiellini
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), UdR INSTM Department of Chemistry & Industrial Chemistry, University of Pisa Via Livornese 1291, 56010 S. Piero a Grado (Pisa), Italy
| | - Dinuccio Dinucci
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), UdR INSTM Department of Chemistry & Industrial Chemistry, University of Pisa Via Livornese 1291, 56010 S. Piero a Grado (Pisa), Italy
| | - Cristina Bartoli
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), UdR INSTM Department of Chemistry & Industrial Chemistry, University of Pisa Via Livornese 1291, 56010 S. Piero a Grado (Pisa), Italy
| | - Anna Maria Piras
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), UdR INSTM Department of Chemistry & Industrial Chemistry, University of Pisa Via Livornese 1291, 56010 S. Piero a Grado (Pisa), Italy
| | - Emo Chiellini
- Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), UdR INSTM Department of Chemistry & Industrial Chemistry, University of Pisa Via Livornese 1291, 56010 S. Piero a Grado (Pisa), Italy,
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Structure Dependence of Lysosomal Transit of Chitosan-Based Polyplexes for Gene Delivery. Mol Biotechnol 2016; 58:648-656. [DOI: 10.1007/s12033-016-9964-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Gu J, Chen X, Ren X, Zhang X, Fang X, Sha X. CD44-Targeted Hyaluronic Acid-Coated Redox-Responsive Hyperbranched Poly(amido amine)/Plasmid DNA Ternary Nanoassemblies for Efficient Gene Delivery. Bioconjug Chem 2016; 27:1723-36. [DOI: 10.1021/acs.bioconjchem.6b00240] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jijin Gu
- Key
Laboratory of Smart Drug Delivery (Fudan University), Ministry of
Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
- Laboratory
for Drug Delivery and Biomaterials, Faculty of Pharmacy, University of Manitoba, 750 McDermot Avenue, Winnipeg, Manitoba R3E 0T5, Canada
| | - Xinyi Chen
- Key
Laboratory of Smart Drug Delivery (Fudan University), Ministry of
Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xiaoqing Ren
- Key
Laboratory of Smart Drug Delivery (Fudan University), Ministry of
Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xiulei Zhang
- Key
Laboratory of Smart Drug Delivery (Fudan University), Ministry of
Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xiaoling Fang
- Key
Laboratory of Smart Drug Delivery (Fudan University), Ministry of
Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xianyi Sha
- Key
Laboratory of Smart Drug Delivery (Fudan University), Ministry of
Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
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40
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Nam JP, Nah JW. Target gene delivery from targeting ligand conjugated chitosan–PEI copolymer for cancer therapy. Carbohydr Polym 2016; 135:153-61. [DOI: 10.1016/j.carbpol.2015.08.053] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/17/2015] [Accepted: 08/18/2015] [Indexed: 01/01/2023]
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Pyykkö I, Zou J, Schrott-Fischer A, Glueckert R, Kinnunen P. An Overview of Nanoparticle Based Delivery for Treatment of Inner Ear Disorders. Methods Mol Biol 2016; 1427:363-415. [PMID: 27259938 DOI: 10.1007/978-1-4939-3615-1_21] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nanoparticles offer new possibilities for inner ear treatment as they can carry a variety of drugs, protein, and nucleic acids to inner ear. Nanoparticles are equipped with several functions such as targetability, immuno-transparency, biochemical stability, and ability to be visualized in vivo and in vitro. A group of novel peptides can be attached to the surface of nanoparticles that will enhance the cell entry, endosomal escape, and nuclear targeting. Eight different types of nanoparticles with different payload carrying strategies are available now. The transtympanic delivery of nanoparticles indicates that, depending on the type of nanoparticle, different migration pathways into the inner ear can be employed, and that optimal carriers can be designed according to the intended cargo. The use of nanoparticles as drug/gene carriers is especially attractive in conjunction with cochlear implantation or even as an inclusion in the implant as a drug/gene reservoir.
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Affiliation(s)
- Ilmari Pyykkö
- Department of Otolaryngology, University of Tampere and University Hospital of Tampere, Tampere, 33014, Finland. .,Hearing and Balance Research Unit, Field of Otolaryngology, School of Medicine, University of Tampere, Medisiinarinkatu 3, Tampere, 33520, Finland.
| | - Jing Zou
- BECS, Department of Biomedical Engineering and Computational Science, Aalto University, Aalto, 02150, Espoo, Finland
| | - Annelies Schrott-Fischer
- Department of Otolaryngology, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Rudolf Glueckert
- Department of Otolaryngology, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, 6020, Austria
| | - Paavo Kinnunen
- BECS, Department of Biomedical Engineering and Computational Science, Aalto University, Aalto, Finland
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42
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Syga MI, Nicolì E, Kohler E, Shastri VP. Albumin Incorporation in Polyethylenimine–DNA Polyplexes Influences Transfection Efficiency. Biomacromolecules 2015; 17:200-7. [DOI: 10.1021/acs.biomac.5b01308] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Marie-Isabel Syga
- Institute
for Macromolecular Chemistry, University of Freiburg, 79104, Freiburg, Germany
- BIOSS−Centre
for Biological Signalling
Studies, University of Freiburg, 79104, Freiburg, Germany
| | - Elena Nicolì
- Institute
for Macromolecular Chemistry, University of Freiburg, 79104, Freiburg, Germany
- Dipartimento
di Scienze del Farmaco, University of Eastern Piedmont, 28100, Novara, Italy
| | - Esther Kohler
- Institute
for Macromolecular Chemistry, University of Freiburg, 79104, Freiburg, Germany
| | - V. Prasad Shastri
- Institute
for Macromolecular Chemistry, University of Freiburg, 79104, Freiburg, Germany
- BIOSS−Centre
for Biological Signalling
Studies, University of Freiburg, 79104, Freiburg, Germany
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43
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Gu J, Hao J, Fang X, Sha X. Factors influencing the transfection efficiency and cellular uptake mechanisms of Pluronic P123-modified polypropyleneimine/pDNA polyplexes in multidrug resistant breast cancer cells. Colloids Surf B Biointerfaces 2015; 140:83-93. [PMID: 26741268 DOI: 10.1016/j.colsurfb.2015.12.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 11/30/2015] [Accepted: 12/14/2015] [Indexed: 11/18/2022]
Abstract
Generally, the major obstacles for efficient gene delivery are cellular internalization and endosomal escape of nucleic acid such as plasmid DNA (pDNA) or small interfering RNA (siRNA). We previously developed Pluronic P123 modified polypropyleneimine (PPI)/pDNA (P123-PPI/pDNA) polyplexes as a gene delivery system. The results showed that P123-PPI/pDNA polyplexes revealed higher transfection efficiency than PPI/pDNA polyplexes in multidrug resistant breast cancer cells. As a continued effort, the present investigation on the factors influencing the transfection efficiency, cellular uptake mechanisms, and intracellular fate of P123-PPI/pDNA polyplexes is reported. The presence of P123 was the main factor influencing the transfection efficiency of P123-PPI/pDNA polyplexes in MCF-7/ADR cells, but other parameters, such as N/P ratio, FBS concentration, incubation time and temperature were important as well. The endocytic inhibitors against clathrin-mediated endocytosis (CME), caveolae-mediated endocytosis (CvME), and macropinocytosis were involved in the internalization to investigate their effects on the cellular uptake and transfection efficiency of P123-PPI/pDNA polyplexes in vitro. The data showed that the internalization of P123-PPI/pDNA polyplexes was obtained from both CME and CvME. Colocalization experiments with TRITC-transferrin (CME indicator), Alexa Fluor 555-CTB (CvME indicator), monoclonal anti-α-tubulin (microtubule indicator), and LysoTracker Green (Endosome/lysosome indicator) were carried out to confirm the internalization routes. The results showed that both CME and CvME played vital roles in the effective transfection of P123-PPI/pDNA polyplexes. Endosome/lysosome system and skeleton, including actin filament and microtubule, were necessary for the transportation after internalization.
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Affiliation(s)
- Jijin Gu
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China; Laboratory for Drug Delivery and Biomaterials, Faculty of Pharmacy, University of Manitoba, 750 McDermot Ave, Winnipeg, Manitoba R3E 0T5, Canada
| | - Junguo Hao
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xiaoling Fang
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China
| | - Xianyi Sha
- Key Laboratory of Smart Drug Delivery, Ministry of Education, Department of Pharmaceutics, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, PR China.
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44
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Martin TM, Plautz SA, Pannier AK. Temporal endogenous gene expression profiles in response to polymer-mediated transfection and profile comparison to lipid-mediated transfection. J Gene Med 2015; 17:33-53. [PMID: 25663627 DOI: 10.1002/jgm.2822] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/01/2015] [Accepted: 02/03/2015] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Design of efficient nonviral gene delivery systems is limited by the rudimentary understanding of specific molecules that facilitate transfection. METHODS Polyplexes using 25-kDa polyethylenimine (PEI) and plasmid-encoding green fluorescent protein (GFP) were delivered to HEK 293T cells. After treating cells with polyplexes, microarrays were used to identify endogenous genes differentially expressed between treated and untreated cells (2 h of exposure) or between flow-separated transfected cells (GFP+) and treated, untransfected cells (GFP-) at 8, 16 and 24 h after lipoplex treatment. Cell priming studies were conducted using pharmacologic agents to alter endogenous levels of the identified differentially expressed genes to determine effect on transfection levels. Differentially expressed genes in polyplex-mediated transfection were compared with those differentially expressed in lipoplex transfection to identify DNA carrier-dependent molecular factors. RESULTS Differentially expressed genes were RGS1, ARHGAP24, PDZD2, SNX24, GSN and IGF2BP1 after 2 h; RAP1A and ACTA1 after 8 h; RAP1A, WDR78 and ACTA1 after 16 h; and RAP1A, SCG5, ATF3, IREB2 and ACTA1 after 24 h. Pharmacologic studies altering endogenous levels for ARHGAP24, GSN, IGF2BP1, PDZD2 and RGS1 were able to increase or decrease transgene production. Comparing differentially expressed genes for polyplexes and lipoplexes, no common genes were identified at the 2-h time point, whereas, after the 8-h time point, RAP1A, ATF3 and HSPA6 were similarly expressed. SCG5 and PGAP1 were only upregulated in polyplex-transfected cells. CONCLUSIONS The identified genes and pharmacologic agents provide targets for improving transfection systems, although polyplex or lipoplex dependencies must be considered.
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Affiliation(s)
- Timothy M Martin
- Department of Pharmaceutical Sciences, Durham Research Center II, University of Nebraska-Medical Center, Omaha, NE, USA
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45
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Lee H, Dam DHM, Ha JW, Yue J, Odom TW. Enhanced Human Epidermal Growth Factor Receptor 2 Degradation in Breast Cancer Cells by Lysosome-Targeting Gold Nanoconstructs. ACS NANO 2015; 9:9859-67. [PMID: 26335372 PMCID: PMC5279887 DOI: 10.1021/acsnano.5b05138] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This paper describes how gold nanoparticle nanoconstructs can enhance anticancer effects of lysosomal targeting aptamers in breast cancer cells. Nanoconstructs consisting of anti-HER2 aptamer (human epidermal growth factor receptor 2, HApt) densely grafted on gold nanostars (AuNS) first targeted HER2 and then were internalized via HER2-mediated endocytosis. As incubation time increased, the nanoconstruct complexes were found in vesicular structures, starting from early endosomes to lysosomes as visualized by confocal fluorescence and differential interference contrast microscopy. Within the target organelle, lysosomes, HER2 was degraded by enzymes at low pH, which resulted in apoptosis. At specific time points related to the doubling time of the cancer cells, we found that accumulation of HER2-HApt-AuNS complexes in lysosomes, lysosomal activity, and lysosomal degradation of HER2 were positively correlated. Increased HER2 degradation by HApt-AuNS triggered cell death and cell cycle arrest in the G0/G1 phase inhibition of cell proliferation. This work shows how a perceived disadvantage of nanoparticle-based therapeutics-the inability of nanoconstructs to escape from vesicles and thus induce a biological response-can be overcome by both targeting lysosomes and exploiting lysosomal degradation of the biomarkers.
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Affiliation(s)
| | - Duncan Hieu M Dam
- Department of Dermatology, Northwestern University , 676 N. St. Clair Street, Chicago, Illinois 60611, United States
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Shi Y, van Nostrum CF, Hennink WE. Interfacially Hydrazone Cross-linked Thermosensitive Polymeric Micelles for Acid-Triggered Release of Paclitaxel. ACS Biomater Sci Eng 2015; 1:393-404. [DOI: 10.1021/acsbiomaterials.5b00006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yang Shi
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
| | - Cornelus F. van Nostrum
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
| | - Wim E. Hennink
- Department of Pharmaceutics,
Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands
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47
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Ecologically Driven Competence for Exogenous DNA Uptake in Yeast. Curr Microbiol 2015; 70:883-93. [DOI: 10.1007/s00284-015-0808-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 02/20/2015] [Indexed: 01/03/2023]
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48
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Pathways and Mechanisms of Yeast Competence: A New Frontier of Yeast Genetics. Fungal Biol 2015. [DOI: 10.1007/978-3-319-10142-2_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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49
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Zheng W, Cao C, Liu Y, Yu Q, Zheng C, Sun D, Ren X, Liu J. Multifunctional polyamidoamine-modified selenium nanoparticles dual-delivering siRNA and cisplatin to A549/DDP cells for reversal multidrug resistance. Acta Biomater 2015; 11:368-80. [PMID: 25204523 DOI: 10.1016/j.actbio.2014.08.035] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Revised: 07/25/2014] [Accepted: 08/28/2014] [Indexed: 02/01/2023]
Abstract
Multidrug resistance (MDR) is a major barrier against effective cancer treatment. Dual-delivering a therapeutic small interfering RNA (siRNA) and chemotherapeutic agents has been developed to reverse drug resistance in tumor cells. In this study, amine-terminated generation 5 polyamidoamine (PAMAM) dendrimers (G5.NH2)-modified selenium nanoparticles (G5@Se NP) were synthesized for the systemic dual-delivery of mdr1 siRNA and cisplatin (cis-diamminedichloroplatinum-(II), DDP), which was demonstrated to enhance siRNA loading, releasing efficiency and gene-silencing efficacy. When the mdr1 siRNA was conjugated with G5@Se NP via electrostatic interaction, a significant down-regulation of P-glycoprotein and multidrug resistance-associated protein expression was observed; G5@Se-DDP-siRNA arrested A549/DDP cells at G1 phase and led to enhanced cytotoxicity in A549/DDP cells through induction of apoptosis involving the AKT and ERK signaling pathways. Interestingly, G5@Se-DDP NP were much less reactive than DDP in the reactions with both MT and GSH, indicating that loading of DDP in a nano-delivery system could effectively prevent cell detoxification. Furthermore, animal studies demonstrated that the new delivery system of G5@Se-DDP-siRNA significantly enhanced the anti-tumor effect on tumor-bearing nude mice, with no appreciable abnormality in the major organs. These results suggest that G5@Se NP could be a potential platform to combine chemotherapy and gene therapy technology in the treatment of human disease.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/genetics
- Animals
- Antineoplastic Agents/administration & dosage
- Antineoplastic Agents/chemistry
- Cell Line, Tumor
- Cisplatin/administration & dosage
- Cisplatin/chemistry
- Dendrimers/chemistry
- Drug Resistance, Multiple/genetics
- Drug Resistance, Neoplasm/genetics
- Gene Silencing
- Genetic Therapy/methods
- Humans
- Metal Nanoparticles/administration & dosage
- Metal Nanoparticles/chemistry
- Metal Nanoparticles/ultrastructure
- Mice
- Mice, Nude
- Nanocapsules/administration & dosage
- Nanocapsules/chemistry
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/therapy
- RNA, Small Interfering/administration & dosage
- RNA, Small Interfering/chemistry
- Selenium/chemistry
- Treatment Outcome
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Affiliation(s)
- Wenjing Zheng
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Chengwen Cao
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Yanan Liu
- Department of Biology, The Chinese University of Hong Kong, Hong Kong
| | - Qianqian Yu
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Chuping Zheng
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Dongdong Sun
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Xiaofan Ren
- Department of Chemistry, Jinan University, Guangzhou 510632, China
| | - Jie Liu
- Department of Chemistry, Jinan University, Guangzhou 510632, China.
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50
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Sarkar K, Krishna Meka SR, Madras G, Chatterjee K. A self-assembling polycationic nanocarrier that exhibits exceptional gene transfection efficiency. RSC Adv 2015. [DOI: 10.1039/c5ra14829d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
A novel polycationic gene carrier was prepared by conjugation of low molecular weight polyethyleneimine with gelatin through 4-bromonaphthaleic anhydride with exceptionally high transfection efficiency.
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Affiliation(s)
- Kishor Sarkar
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore 560012
- India
| | | | - Giridhar Madras
- Department of Chemical Engineering
- Indian Institute of Science
- Bangalore 560012
- India
| | - Kaushik Chatterjee
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore 560012
- India
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