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Hincapie R, Bhattacharya S, Baksh MM, Sanhueza CA, Echeverri ES, Kim H, Paunovska K, Podilapu AR, Xu M, Dahlman JE, Finn MG. Multivalent Targeting of the Asialoglycoprotein Receptor by Virus-Like Particles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304263. [PMID: 37649182 PMCID: PMC10840735 DOI: 10.1002/smll.202304263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/16/2023] [Indexed: 09/01/2023]
Abstract
The asialoglycoprotein receptor (ASGPR) is expressed in high density on hepatocytes. Multivalent variants of galactosyl carbohydrates bind ASGPR with high affinity, enabling hepatic delivery of ligand-bound cargo. Virus-like particle (VLP) conjugates of a relatively high-affinity ligand were efficiently endocytosed by ASGPR-expressing cells in a manner strongly dependent on the nature and density of ligand display, with the best formulation using a nanomolar-, but not a picomolar-level, binder. Optimized particles were taken up by HepG2 cells with greater efficiency than competing small molecules or the natural multigalactosylated ligand, asialoorosomucoid. Upon systemic injection in mice, these VLPs were rapidly cleared to the liver and were found in association with sinusoidal endothelial cells, Kupffer cells, hepatocytes, dendritic cells, and other immune cells. Both ASGPR-targeted and nontargeted particles were distributed similarly to endothelial and Kupffer cells, but targeted particles were distributed to a greater number and fraction of hepatocytes. Thus, selective cellular trafficking in the liver is difficult to achieve: even with the most potent ASGPR targeting available, barrier cells take up much of the injected particles and hepatocytes are accessed only approximately twice as efficiently in the best case.
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Affiliation(s)
- Robert Hincapie
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Sonia Bhattacharya
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Michael M Baksh
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Carlos A Sanhueza
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Elisa Schrader Echeverri
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Hyejin Kim
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Kalina Paunovska
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Ananda R Podilapu
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Minghao Xu
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
| | - James E Dahlman
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory School of Medicine, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - M G Finn
- School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
- School of Biological Sciences, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, GA, 30332, USA
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2
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An H, Qian C, Huang Y, Li J, Tian X, Feng J, Hu J, Fang Y, Jiao F, Zeng Y, Huang X, Meng X, Liu X, Lin X, Zeng Z, Guilliams M, Beschin A, Chen Y, Wu Y, Wang J, Oggioni MR, Leong J, Veening JW, Deng H, Zhang R, Wang H, Wu J, Cui Y, Zhang JR. Functional vulnerability of liver macrophages to capsules defines virulence of blood-borne bacteria. J Exp Med 2022; 219:213054. [PMID: 35258552 PMCID: PMC8908791 DOI: 10.1084/jem.20212032] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/22/2021] [Accepted: 01/24/2022] [Indexed: 12/12/2022] Open
Abstract
Many encapsulated bacteria use capsules to cause invasive diseases. However, it remains largely unknown how the capsules enhance bacterial virulence under in vivo infection conditions. Here we show that the capsules primarily target the liver to enhance bacterial survival at the onset of blood-borne infections. In a mouse sepsis model, the capsules enabled human pathogens Streptococcus pneumoniae and Escherichia coli to circumvent the recognition of liver-resident macrophage Kupffer cells (KCs) in a capsular serotype-dependent manner. In contrast to effective capture of acapsular bacteria by KCs, the encapsulated bacteria are partially (low-virulence types) or completely (high-virulence types) “untouchable” for KCs. We finally identified the asialoglycoprotein receptor (ASGR) as the first known capsule receptor on KCs to recognize the low-virulence serotype-7F and -14 pneumococcal capsules. Our data identify the molecular interplay between the capsules and KCs as a master controller of the fate and virulence of encapsulated bacteria, and suggest that the interplay is targetable for therapeutic control of septic infections.
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Affiliation(s)
- Haoran An
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Chenyun Qian
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Yijia Huang
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Jing Li
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Xianbin Tian
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Jiaying Feng
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Jiao Hu
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Yujie Fang
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Fangfang Jiao
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Yuna Zeng
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China
| | - Xueting Huang
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Xianbin Meng
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Xue Liu
- Department of Fundamental Microbiology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Xin Lin
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
| | - Zhutian Zeng
- School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Martin Guilliams
- Laboratory of Myeloid Cell Biology in Tissue Homeostasis and Regeneration, VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Faculty of Science, Ghent University, Ghent, Belgium
| | - Alain Beschin
- Myeloid Cell Immunology Lab, VIB Center for Inflammation Research, Brussels, Belgium.,Laboratory of Cellular and Molecular Immunology, Vrije University Brussel, Brussels, Belgium
| | - Yongwen Chen
- Institute of Immunology, Third Military Medical University, Chongqing, China
| | - Yuzhang Wu
- Institute of Immunology, Third Military Medical University, Chongqing, China
| | - Jing Wang
- Shanghai Institute of Immunology, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | | | - John Leong
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, MA
| | - Jan-Willem Veening
- Department of Fundamental Microbiology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Haiteng Deng
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Rong Zhang
- The Second Affiliated Hospital of Zhejiang University, Zhejiang University, Hangzhou, China
| | - Hui Wang
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Jiang Wu
- Beijing Center for Disease Control and Prevention, Beijing, China
| | - Yan Cui
- Department of General Surgery, Strategic Support Force Medical Center, Beijing, China
| | - Jing-Ren Zhang
- Center for Infectious Disease Research, Department of Basic Medical Science, School of Medicine, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China
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3
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Mehta M, Satija S, Paudel KR, Malyla V, Kannaujiya VK, Chellappan DK, Bebawy M, Hansbro PM, Wich PR, Dua K. Targeting respiratory diseases using miRNA inhibitor based nanotherapeutics: Current status and future perspectives. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 31:102303. [PMID: 32980549 DOI: 10.1016/j.nano.2020.102303] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 12/24/2022]
Abstract
MicroRNAs (miRNAs) play a fundamental role in the developmental and physiological processes that occur in both animals and plants. AntagomiRs are synthetic antagonists of miRNA, which prevent the target mRNA from suppression. Therapeutic approaches that modulate miRNAs have immense potential in the treatment of chronic respiratory disorders. However, the successful delivery of miRNAs/antagomiRs to the lungs remains a major challenge in clinical applications. A range of materials, namely, polymer nanoparticles, lipid nanocapsules and inorganic nanoparticles, has shown promising results for intracellular delivery of miRNA in chronic respiratory disorders. This review discusses the current understanding of miRNA biology, the biological roles of antagomiRs in chronic respiratory disease and the recent advances in the therapeutic utilization of antagomiRs as disease biomarkers. Furthermore our review provides a common platform to debate on the nature of antagomiRs and also addresses the viewpoint on the new generation of delivery systems that target antagomiRs in respiratory diseases.
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Affiliation(s)
- Meenu Mehta
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, Australia; Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia
| | - Saurabh Satija
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, Australia; School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Keshav R Paudel
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia; School of Life Sciences, University of Technology Sydney, Ultimo, NSW, Australia
| | - Vamshikrishna Malyla
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, Australia; Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia
| | | | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur, Malaysia
| | - Mary Bebawy
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, Australia
| | - Philip M Hansbro
- Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia; School of Life Sciences, University of Technology Sydney, Ultimo, NSW, Australia
| | - Peter R Wich
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, Australia; Centre for Nanomedicine, University of New South Wales, Sydney, NSW, Australia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, Australia; Centre for Inflammation, Centenary Institute, Sydney, NSW, Australia; Priority Research Centre for Healthy Lungs, University of Newcastle & Hunter Medical Research Institute, New Lambton Heights, Newcastle, NSW, Australia; School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh, India.
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4
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Chen X, Hu X, Hu J, Qiu Z, Yuan M, Zheng G. Celastrol-Loaded Galactosylated Liposomes Effectively Inhibit AKT/c-Met-Triggered Rapid Hepatocarcinogenesis in Mice. Mol Pharm 2020; 17:738-747. [PMID: 31904241 DOI: 10.1021/acs.molpharmaceut.9b00428] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Our previous study proved that celastrol was a potential candidate for hepatocellular carcinoma (HCC) therapy. However, poor water solubility and toxic side effects may restrict its clinical application. To overcome these shortcomings and optimize its antitumor efficacy, we developed galactosylated liposomes using galactose-modified 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-poly(ethylene glycol) to deliver celastrol (C-GPL). C-GPL improved the water solubility of celastrol and exhibited high encapsulation efficiency, good stability in serum, and slow drug release profile. In vitro studies showed that C-GPL increased the cellular uptake of celastrol through receptor-mediated endocytosis, thereby enhancing celastrol cytotoxicity and cancer cell apoptosis. Particularly, in vivo antitumor activity of C-GPL was assessed in rapid HCC mouse models established via hydrodynamic transfection of the activated forms of AKT and c-Met. Compared to free celastrol, C-GPL significantly prevented liver weight gain, decreased liver damage biomarkers (glutamic-oxalacetic transaminase and alanine aminotransferase) and HCC marker (alpha-fetoprotein), and led to tumor disappearance on the liver surface. The improved therapeutic effect of C-GPL may be attributed to suppression of AKT activation, induction of apoptosis, and retardation of cell proliferation. Importantly, C-GPL exerted low toxicity to normal tissues without causing severe weight loss in mice. Taken together, C-GPL may become a promising drug delivery system for HCC treatment.
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Affiliation(s)
- Xinyan Chen
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Xianxian Hu
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Junjie Hu
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Zhenpeng Qiu
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Ming Yuan
- Department of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Guohua Zheng
- Key Laboratory of Chinese Medicine Resource and Compound Prescription, Ministry of Education, Hubei University of Chinese Medicine, Wuhan 430065, China
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5
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Recent progress in microRNA-based delivery systems for the treatment of human disease. ACTA ACUST UNITED AC 2019. [DOI: 10.1186/s41544-019-0024-y] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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6
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Xie X, Luo S, Mukerabigwi JF, Mei J, Zhang Y, Wang S, Xiao W, Huang X, Cao Y. Targeted nanoparticles from xyloglucan–doxorubicin conjugate loaded with doxorubicin against drug resistance. RSC Adv 2016. [DOI: 10.1039/c6ra01779g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The novel targeted Xyloglucan–doxorubicin nanoparticle drug delivery systems (DOX nano-DDSs) exhibited improved cellular uptake, increased accumulation in tumor, higher cytotoxicity against drug resistant tumor cells and reduced side effects.
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Affiliation(s)
- Xuan Xie
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Shiying Luo
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Jean Felix Mukerabigwi
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Jian Mei
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Yuannian Zhang
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Shufang Wang
- Blood Transfusion Department
- The General Hospital of the People's Liberation Army
- Beijing 100853
- China
| | - Wang Xiao
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Xueying Huang
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
| | - Yu Cao
- Key Laboratory of Pesticide and Chemical Biology (Ministry of Education)
- College of Chemistry
- Central China Normal University
- Wuhan 430079
- P. R. China
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7
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8
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Asialoglycoprotein receptor mediated hepatocyte targeting — Strategies and applications. J Control Release 2015; 203:126-39. [DOI: 10.1016/j.jconrel.2015.02.022] [Citation(s) in RCA: 286] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 02/14/2015] [Accepted: 02/16/2015] [Indexed: 02/07/2023]
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9
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Huang Z, Wang Z, Long S, Jiang H, Chen J, Zhang J, Dong L. A 3-D artificial colon tissue mimic for the evaluation of nanoparticle-based drug delivery system. Mol Pharm 2014; 11:2051-61. [PMID: 24456069 DOI: 10.1021/mp400723j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Functional engineered nanoparticles are promising drug delivery carriers. As the construction of a functional nanocarrier always needs the optimization of multiple technical variables, efficient in vitro high-throughput evaluation methods would help to shorten the development cycle. In the present study, we generated a tissue mimic of the colon of inflammatory bowel disease (IBD) patients. Generally, Caco-2 cells and THP-1 cells were grown in a 3-D matrix with different number, spatial distribution and specific extracellular cell matrix (ECM) composition according to real healthy and inflamed animal colon tissues. After interlerukin-1β/lipopolysaccharide (LPS) stimulation, the artificial model closely resembled the pathological features of IBD patient's colon, including massive cytokines and mucus production, epithelium defect and leukocytic infiltration. The tissue and cellular uptake of three different nanoparticles in the artificial model was similar to that in 2,4,6-trinitrobenzenesulfonic acid (TNBS) colitic mice. Most importantly, our artificial tissue can be placed into 96-well plates for high-throughput screening of drug delivery carriers for the treatment of IBD. Our study suggested a readily achievable way to improve current methodologies for the development of colon targeted drug delivery systems.
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Affiliation(s)
- Zhen Huang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, ‡State Key Laboratory of Analytical Chemistry for Life Science, and §Jiangsu Provincial Laboratory for Nano-Technology, Nanjing University , Nanjing 210093, China
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10
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In vivo hepatocyte MR imaging using lactose functionalized magnetoliposomes. Biomaterials 2013; 35:1015-24. [PMID: 24210051 DOI: 10.1016/j.biomaterials.2013.10.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 10/08/2013] [Indexed: 12/16/2022]
Abstract
The aim of this study was to assess a novel lactose functionalized magnetoliposomes (MLs) as an MR contrast agent to target hepatocytes as well as to evaluate the targeting ability of MLs for in vivo applications. In the present work, 17 nm sized iron oxide cores functionalized with anionic MLs bearing lactose moieties were used for targeting the asialoglycoprotein receptor (ASGP-r), which is highly expressed in hepatocytes. Non-functionalized anionic MLs were tested as negative controls. The size distribution of lactose and anionic MLs was determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS). After intravenous administration of both MLs, contrast enhancement in the liver was observed by magnetic resonance imaging (MRI). Label retention was monitored non-invasively by MRI and validated with Prussian blue staining and TEM for up to eight days post MLs administration. Although the MRI signal intensity did not show significant differences between functionalized and non-functionalized particles, iron-specific Prussian blue staining and TEM analysis confirmed the uptake of lactose MLs mainly in hepatocytes. In contrast, non-functionalized anionic MLs were mainly taken up by Kupffer and sinusoidal cells. Target specificity was further confirmed by high-resolution MR imaging of phantoms containing isolated hepatocytes, Kupffer cell (KCs) and hepatic stellate cells (HSCs) fractions. Hypointense signal was observed for hepatocytes isolated from animals which received lactose MLs but not from animals which received anionic MLs. These data demonstrate that galactose-functionalized MLs can be used as a hepatocyte targeting MR contrast agent to potentially aid in the diagnosis of hepatic diseases if the non-specific uptake by KCs is taken into account.
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11
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Cheng PC, Chiang PF, Lee KM, Yeh CH, Hsu KL, Liu SW, Shen LH, Peng CL, Fan CK, Luo TY. Evaluating the potential of a new isotope-labelled glyco-ligand for estimating the remnant liver function of schistosoma-infected mice. Parasite Immunol 2013; 35:129-139. [PMID: 23216139 DOI: 10.1111/pim.12022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Accepted: 11/30/2012] [Indexed: 12/15/2022]
Abstract
A new glyco-derivative compound (OCTAM) was developed and labelled with isotope to form (188) Re-OCTAM as a candidate nuclear medicine imaging agent for testing the liver function. We evaluated the potential of isotope-labelled OCTAM for estimating the remnant liver function in vitro and in vivo schistosoma-infected mice. The affinity of OCTAM to liver asialoglycoprotein receptors (ASGPR) was assessed by competitive inhibition assay in vitro. In vivo assessments were performed to score the remnant liver function in mice at different schistosomal infection stages. OCTAM binds specifically to ASGPR and showed competitive inhibition of anti-ASGPR antibody binding to hepatocytes, and was higher than that of other galactosyl ligands. Micro-SPECT/CT images of uninfected mice revealed strong liver uptake. Quantified serial images of mice infected for 9, 12 and 18 weeks showed delayed liver uptake, and the retention of uptake was inversely correlated with stage and grade of schistosoma infection. Pathological and biochemical analysis demonstrated that gradually accumulating liver injury caused by infection significantly influenced uptake of (188) Re-OCTAM. Hepatic ASGPR expression diminished only in the chronic infection stage. This study demonstrated that the isotope-labelled OCTAM could accumulate in the liver, might have potential as an imaging agent for in vivo hepatic function evaluation of schistosomiasis.
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Affiliation(s)
- P-C Cheng
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Center for International Tropical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - P-F Chiang
- Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - K-M Lee
- Institute of Medical Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - C-H Yeh
- Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - K-L Hsu
- Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - S-W Liu
- Chemistry Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - L-H Shen
- Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - C-L Peng
- Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - C-K Fan
- Department of Molecular Parasitology and Tropical Diseases, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Center for International Tropical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - T-Y Luo
- Isotope Application Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
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12
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Wei H, Huang J, Yang J, Zhang X, Lin L, Xue E, Chen Z. Ultrasound exposure improves the targeted therapy effects of galactosylated docetaxel nanoparticles on hepatocellular carcinoma xenografts. PLoS One 2013; 8:e58133. [PMID: 23469265 PMCID: PMC3585934 DOI: 10.1371/journal.pone.0058133] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 01/30/2013] [Indexed: 01/18/2023] Open
Abstract
Purpose The distribution of targeted nanoparticles in tumor tissue is affected by a combination of various factors such as the physicochemical properties of the nanoparticles, tumor hemoperfusion and tumor vascular permeability. In this study, the impact of the biological effects of ultrasound on nanoparticle targeting to liver carcinoma was explored. Methods The copolymer MePEG-PLGA was used to prepare the galactosylated docetaxel nanoparticles (GDN), and the physical and chemical properties as well as the acute toxicity were then assayed. The impact of ultrasound exposure (UE) on tumor hemoperfusion was observed by contrast-enhanced ultrasonography (CEUS), and the distribution of docetaxel in tumors and liver were detected by high performance liquid chromatography (HPLC). In the GDN combined with UE treatment group, the mice were injected intravenously with GDN, followed by ultrasound exposure on the human hepatocellular carcinoma xenografts. Twenty-eight days post-administration, the tumor growth inhibition rate was calculated, and the expression of Survivin and Ki67 in tumor tissues were determined by immunohistochemistry assay and quantitative real-time PCR. Results The mean size of prepared liver-targeting nanoparticles GDN was 209.3 nm, and the encapsulation efficiency was 72.28%. The median lethal dose of GDN was detected as 219.5 mg/kg which was about four times higher than that of docetaxel. After ultrasound exposure, the tumor peak - base intensity difference value, examined by CEUS, increased significantly. The drug content in the tumor was 1.96 times higher than in the GDN treated control. In vivo, GDN intravenous injection combined with ultrasound exposure therapy achieved the best anti-tumor effect with a tumor growth inhibition rate of 74.2%, and the expression of Survivin and Ki67 were significantly decreased as well. Conclusion Ultrasound exposure can improve targeting nanoparticles accumulation in the tumor, and achieve a synergism antitumor effect on the hepatocellular carcinoma xenografts.
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Affiliation(s)
- Hongfen Wei
- Department of Ultrasonography, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
- Department of Ultrasonography, Affiliated Sir Run Run Shaw Hospital of Zhejiang University, Hangzhou, China
| | - Jing Huang
- Department of Ultrasonography, People’s Hospital of Zhuhai City, Zhuhai, China
| | - Jing Yang
- Department of Pharmacy, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
| | - Xiujuan Zhang
- Department of Ultrasonography, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
| | - Liwu Lin
- Department of Ultrasonography, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
| | - Ensheng Xue
- Department of Ultrasonography, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
| | - Zhikui Chen
- Department of Ultrasonography, Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
- * E-mail:
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13
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Lu Z, Mei L, Zhang X, Wang Y, Zhao Y, Li C. Water-soluble BODIPY-conjugated glycopolymers as fluorescent probes for live cell imaging. Polym Chem 2013. [DOI: 10.1039/c3py00639e] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Zhang X, Zhang X, Yu P, Han Y, Li Y, Li C. Hydrotropic polymeric mixed micelles based on functional hyperbranched polyglycerol copolymers as hepatoma-targeting drug delivery system. J Pharm Sci 2012; 102:145-53. [PMID: 23132353 DOI: 10.1002/jps.23344] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 09/11/2012] [Accepted: 10/03/2012] [Indexed: 11/07/2022]
Abstract
Mixed copolymer nanoparticles (NPs) self-assembled from β-cyclodextrin-grafted hyperbranched polyglycerol (HPG-g-CD) and lactobionic acid (LA)-grafted hyperbranched polyglycerol (HPG-g-LA) were applied as carriers for a hydrophobic antitumor drug, paclitaxel (PTX), achieving hepatocellular carcinoma-targeted delivery. The resulting NPs exhibited high drug loading capacity and substantial stability in aqueous solution. In vitro drug release studies demonstrated a controlled drug release profile with increased release at acidic pH. Remarkably, tumor proliferation assays showed that PTX-loaded mixed copolymer NPs inhibited asialoglycoprotein (ASGP) receptor positive HepG2 cell proliferation in a concentration-dependent manner in comparison with ASGP receptor negative BGC-823 cells. Moreover, the competition assay demonstrated that the small molecular LA inhibited the cellular uptake of the PTX-loaded mixed copolymer NPs, indicating the ASGP receptor-mediated endocytosis in HepG2 cells. In addition, the intracellular uptake tests by confocal laser scanning microscopy showed that the mixed copolymer NPs were more efficiently taken up by HepG2 cells compared with HPG-g-CD NPs. These results suggest a feasible application of the mixed copolymer NPs as nanocarriers for hepatoma-targeted delivery of potent antitumor drugs.
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Affiliation(s)
- Xuejiao Zhang
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
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Huang Z, Dong L, Chen J, Gao F, Zhang Z, Chen J, Zhang J. Low-molecular weight chitosan/vascular endothelial growth factor short hairpin RNA for the treatment of hepatocellular carcinoma. Life Sci 2012; 91:1207-15. [PMID: 23044224 DOI: 10.1016/j.lfs.2012.09.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 09/01/2012] [Accepted: 09/19/2012] [Indexed: 12/27/2022]
Abstract
AIMS Vascular endothelial growth factor (VEGF) has been shown to be a key driving force for angiogenesis and tumor growth in hepatocellular carcinoma (HCC). As an emerging approach to block this angiogenic stimulator, the RNA interference (RNAi) technique has rapidly developed but is hindered for in vivo applications due to low cellular uptake and poor stability of small RNA. Based on low molecular weight chitosan (LMWC), a gene delivery system of short hairpin RNA (shRNA) directed against VEGF was constructed. The objective of this study was to investigate whether LMWC/shRNA nano-complexes can effectively inhibit VEGF expression in cancer cells and tumor tissues and suppress tumor growth in different HCC models. MAIN METHODS The transfection experiment and Real-time qPCR assay were used to evaluate the transfection efficiency and gene suppression activity of LMWC/shRNA complexes in Hepa 1-6 murine hepatocarcinoma cells. The therapeutic effect of LMWC/ VEGF shRNA was further tested in ectopic and orthotopic liver cancer models. KEY FINDINGS LMWC/VEGF shRNA complexes significantly inhibited VEGF expression of HCC cells and liver tumor tissues. LMWC obviously enhanced and prolonged the deposition of shRNA at the tumor site when LMWC/shRNA complexes were intravenously injected into orthotopic allograft liver tumor-bearing mice. The administration of LMWC/VEGF shRNA complexes by intratumoral or intravenous injection demonstrated more effective suppression of tumor angiogenesis and tumor growth in different HCC models compared with naked shRNA. SIGNIFICANCE This study demonstrated the feasibility of using LMWC as a potential carrier for RNA interference drugs in liver cancer therapy.
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Affiliation(s)
- Zhen Huang
- State Key Laboratory of Pharmaceutical Biotechnology, Jiangsu Engineering Research Center for microRNA Biology and Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, China
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Wei PR, Cheng SH, Liao WN, Kao KC, Weng CF, Lee CH. Synthesis of chitosan-coated near-infrared layered double hydroxide nanoparticles for in vivo optical imaging. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16447g] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Jain S, Amiji M. Macrophage-Targeted Nanoparticle Delivery Systems. NANOSTRUCTURE SCIENCE AND TECHNOLOGY 2012. [DOI: 10.1007/978-1-4614-2305-8_4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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18
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Characterization and hepatocytes adhesion of galactosylated poly(D,L-lactic-co-glycolic acid) surface. Macromol Res 2011. [DOI: 10.1007/s13233-012-0005-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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19
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Chen Z, Cai X, Yang Y, Wu G, Liu Y, Chen F, Li X. Promoted Transfection Efficiency of pDNA Polyplexes-Loaded Biodegradable Microparticles Containing Acid-Labile Segments and Galactose Grafts. Pharm Res 2011; 29:471-82. [DOI: 10.1007/s11095-011-0577-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2011] [Accepted: 08/22/2011] [Indexed: 10/17/2022]
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20
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Cao Y, Chen D, Zhao P, Liu L, Huang X, Qi C, Liu Y, He H, Wang Q, Liu Y, Chen S. Intracellular Delivery of Mitomycin C with Targeted Polysaccharide Conjugates Against Multidrug Resistance. Ann Biomed Eng 2011; 39:2456-65. [DOI: 10.1007/s10439-011-0333-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Accepted: 05/17/2011] [Indexed: 11/27/2022]
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Cheng M, Li Q, Wan T, Hong X, Chen H, He B, Cheng Z, Xu H, Ye T, Zha B, Wu J, Zhou R. Synthesis and efficient hepatocyte targeting of galactosylated chitosan as a gene carrier in vitro and in vivo. J Biomed Mater Res B Appl Biomater 2011; 99:70-80. [PMID: 21656667 DOI: 10.1002/jbm.b.31873] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Revised: 04/02/2011] [Accepted: 04/10/2011] [Indexed: 12/11/2022]
Abstract
While chitosan (CS) has been researched widely as a non-viral vector, its usefulness has been limited by its low cell specificity and transfection efficiency. Therefore, we successfully synthesized galactosylated chitosan (GC) and complexed it with an enhanced green fluorescent protein plasmid (pIRES-EGFP) for transfection into cultured H22 cells (murine hepatic cancer cell line) using various GC/EGFP (N/P) charge ratios. Maximal gene transfection rates detected by flow cytometry occurred at an N/P ratio 5:1. Compared with those of lipofectin/EGFP and naked pIRES-EGFP, GC/EGFP complexes show a very efficient cell-selective transfection to hepatocytes. The MTT assay detected relatively low cytotoxicity in cells transfected with GC. A recombinant plasmid granulocyte-macrophage colony-stimulating factor (GM-SCF) and interleukin (IL) 21 (pIRES/GM-CSF-IL21) was successfully constructed and GC/GM-CSF-IL21 nanoparticles (average diameter, 82.1 nm) were administered via the tail vein of mice with liver metastasis of colon cancer model, for 5 consecutive days. The GC/GM-CSF-IL21 nanoparticles exhibited hepatocyte and passive tumor specificity, increased therapeutic efficacy compared to control groups, promoted leukocytes to aggregate in tumor tissues, and activated the cytotoxicity of natural killer (NK) cells and cytolytic T lymphocyte (CTL). Our results indicate that GC can be used in gene therapy to improve transfection efficiency and can be used as an immunological stimulant in vivo.
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Affiliation(s)
- Mingrong Cheng
- Department of General Surgery, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China.
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Duceppe N, Tabrizian M. Advances in using chitosan-based nanoparticles for in vitro and in vivo drug and gene delivery. Expert Opin Drug Deliv 2011; 7:1191-207. [PMID: 20836623 DOI: 10.1517/17425247.2010.514604] [Citation(s) in RCA: 155] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
IMPORTANCE OF THE FIELD This review aims to provide an overview of state-of-the-art chitosan-based nanosized carriers for the delivery of therapeutic agents. Chitosan nanocarriers are smart delivery systems owing to the possibility of their property alterations with various approaches, which would confer them with the possibility of spatiotemporal delivery features. AREAS COVERED IN THIS REVIEW The focus of this review is principally on those aspects that have not often been addressed in other reviews. These include the influence of physicochemical properties of chitosan on delivery mechanisms and chitosan modification with a variety of ligand moieties specific for cell surface receptors to increase recognition and uptake of nanocarriers into cells through receptor-mediated endocytosis. Multiple examples that demonstrate the advantages of chitosan-based nanocarriers over other delivery systems of therapeutic agents are highlighted. Particular emphasis is given to the alteration of material properties by functionalization or combination with other polymers for their specific applications. Finally, structural and experimental parameters influencing transfection efficiency of chitosan-based nanocarriers are presented for both in vitro and in vivo gene delivery. WHAT THE READER WILL GAIN The readers will acquire knowledge of parameters influencing the properties of the chitosan-based nanocarriers for delivery of therapeutic agents (genetic material or drugs) in vitro and in vivo. They will get a better idea of the strategies to be adapted to tune the characteristics of chitosan and chitosan derivatives for specific delivery applications. TAKE HOME MESSAGE Chitosan is prone to chemical and physical modifications, and is very responsive to environmental stimuli such as temperature and pH. These features make chitosan a smart material with great potential for developing multifunctional nanocarrier systems to deliver large varieties of therapeutic agents administrated in multiple ways with reduced side effects.
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Affiliation(s)
- Nicolas Duceppe
- Department of Biomedical Engineering, Faculty of Medicine, McGill University, Duff Medical Science Building, 3775 University Street, Montréal, Québec, Canada
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Polymeric Nanoparticles of Chitosan Derivatives as DNA and siRNA Carriers. ADVANCES IN POLYMER SCIENCE 2011. [DOI: 10.1007/12_2011_110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Dong L, Huang Z, Cai X, Xiang J, Zhu YA, Wang R, Chen J, Zhang J. Localized delivery of antisense oligonucleotides by cationic hydrogel suppresses TNF-α expression and endotoxin-induced osteolysis. Pharm Res 2010; 28:1349-56. [PMID: 21140285 DOI: 10.1007/s11095-010-0334-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Accepted: 11/17/2010] [Indexed: 01/12/2023]
Abstract
PURPOSE To investigate the possibility of using localized nucleic drug delivery methods for the treatment of osteolysis-related bone disease. METHODS A bio-degradable cationic hydrogel composed of gelatin and chitosan was used to deliver an antisense oligonucleotide (ASO) targeting murine TNF-α for the treatment of endotoxin-induced osteolysis. RESULTS ASO combined with this hydrogel was released when it was digested by adhering cells. The released ASO was efficiently delivered into contacted cells and tissues in vitro and in vivo. When tested in animal models of edotoxin-induced bone resorption, ASO delivered by such means effectively suppressed the expression of TNF-α and subsequently the osteoclastogenesis in vivo. Osteolysis in the edotoxin-induced bone resorption animal models was blocked by the treatment. CONCLUSION This is a successful attempt to apply localized gene delivery method to treat inflammatory diseases in vivo.
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Affiliation(s)
- Lei Dong
- State Key Laboratory of Pharmaceutical Biotechnology School of Life Sciences, Nanjing University, Nanjing 210093, China
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Centelles MN, Isasi JR, Qian C, Campanero MA, Irache JM. Influence of the chitosan nature on the transfection efficacy of DNA-loaded nanoparticles after hydrodynamic administration in mice. J Microencapsul 2010; 27:460-9. [DOI: 10.3109/02652041003638158] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Cao Y, Gu Y, Ma H, Bai J, Liu L, Zhao P, He H. Self-assembled nanoparticle drug delivery systems from galactosylated polysaccharide-doxorubicin conjugate loaded doxorubicin. Int J Biol Macromol 2009; 46:245-9. [PMID: 19958788 DOI: 10.1016/j.ijbiomac.2009.11.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 11/20/2009] [Accepted: 11/23/2009] [Indexed: 11/29/2022]
Abstract
Xyloglucan was grafted with the doxorubicin (DOX) and galactosamine, a terminal moiety that can be used to target polymeric conjugates to liver hepatocytes. The content of the DOX was over 5% (wt) in the conjugate. The polymeric drug assisted to form nanoparticle drug delivery systems (nanoDDSs) with an average size of 142 nm in diameter when combined with an excess amount of deprotonated doxorubicin in an aqueous phase. A loading content of doxorubicin is as high as 23.8% in the nanoDDS. In an in vitro cytotoxicity experiment, the novel nanoDDS has similar cytotoxicity as free DOX against HepG2 cells. In contrast, for the incubation with HeLa cells of the novel nanoDDS, there was no significant cytotoxicity change. In a human tumor xenograft nude mouse model, the novel nanoDDS generated higher therapeutic effect than non-targeted doxorubicin nanoparticles or free doxorubicin. Together, these results suggest that novel nanoDDS, which has improved transfection efficiency and hepatocyte specificity, may be useful for tumor therapy.
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Affiliation(s)
- Yu Cao
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152# Luoyu Road, Wuhan, Hubei 430079, PR China.
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Nano and microtechnologies for the delivery of oligonucleotides with gene silencing properties. Molecules 2009; 14:2801-23. [PMID: 19701125 PMCID: PMC6255434 DOI: 10.3390/molecules14082801] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 07/22/2009] [Accepted: 07/27/2009] [Indexed: 01/13/2023] Open
Abstract
Oligonucleotides (ONs) are synthetic fragments of nucleic acid designed to modulate the expression of target proteins. DNA-based ONs (antisense, antigene, aptamer or decoy) and more recently a new class of RNA-based ONs, the small interfering RNAs (siRNAs), have gained great attention for the treatment of different disease states, such as viral infections, inflammation, diabetes, and cancer. However, the development of therapeutic strategies based on ONs is hampered by their low bioavailability, poor intracellular uptake and rapid degradation in biological fluids. The use of a non-viral carrier can be a powerful tool to overcome these drawbacks. Lipid or polymer-based nanotechnologies can improve biological stability and cellular uptake of ONs, with possibility of tissue and/or cellular targeting. The use of polymeric devices can also produce a prolonged release of the ON, thus reducing the need of frequent administrations. This review summarizes advantages and issues related to the main non-viral vectors used for ON delivery.
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Dong L, Xia S, Chen H, Chen J, Zhang J. Spleen-specific suppression of TNF-alpha by cationic hydrogel-delivered antisense nucleotides for the prevention of arthritis in animal models. Biomaterials 2009; 30:4416-26. [PMID: 19481251 DOI: 10.1016/j.biomaterials.2009.04.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Accepted: 04/28/2009] [Indexed: 12/18/2022]
Abstract
This study developed a transplantable platform based on cationic hydrogels to deliver antisense oligodeoxynucleotides (ASOs) targeting the mRNA of TNF-alpha. Cationic agarose (c-agarose) was obtained by conjugating ethylenediamine to agarose via an N,N'-carbonyldiimidazole (CDI)-activation method. ASO-c-agarose system was constructed by mixing ASO in cationic agarose gel of proper concentration and gelation temperature. In vivo assessment of ASO distribution suggested that the system specifically target to spleen, wherein the c-agarose-delivered ASO had a concentration remarkably 50-fold higher than that of the naked ASO. The distribution of c-agarose-delivered ASO was scarcely detectable in liver and kidney. Next, three types of animal models were setup to evaluate the therapeutic efficacies of ASO-Gel, including the adjuvant-induced arthritis (AA), carrageen/lipopolysaccharide (LPS)-induced arthritis (CLA) and collagen-induced arthritis (CIA) models. The effects of ASO-c-agarose in alleviating inflammation and tissue destruction were evidenced in more than 90% of the testing animals, with decrease of main inflammatory cytokines, lightening of joint swelling and tissue damage, as well as increase in their body weights. All these findings suggest that this highly operable devise for the conveyance of antisense nucleotides together with its spleen-targeting property, could become a useful means of antisense-based therapeutics against rheumatoid arthritis and other diseases.
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Affiliation(s)
- Lei Dong
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210093, PR China
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Fattal E, Barratt G. Nanotechnologies and controlled release systems for the delivery of antisense oligonucleotides and small interfering RNA. Br J Pharmacol 2009; 157:179-94. [PMID: 19366348 DOI: 10.1111/j.1476-5381.2009.00148.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Antisense oligonucleotides and small interfering RNA have enormous potential for the treatment of a number of diseases, including cancer. However, several impediments to their widespread use as drugs still have to be overcome: in particular their lack of stability in physiological fluids and their poor penetration into cells. Association with or encapsulation within nano- and microsized drug delivery systems could help to solve these problems. In this review, we describe the progress that has been made using delivery systems composed of natural or synthetic polymers in the form of complexes, nanoparticles or microparticles.
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Affiliation(s)
- Elias Fattal
- Univ Paris Sud 11, UMR 8612, Châtenay-Malabry, F-92290, France
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Hadaschik BA, Jackson J, Fazli L, Zoubeidi A, Burt HM, Gleave ME, So AI. Intravesically administered antisense oligonucleotides targeting heat-shock protein-27 inhibit the growth of non-muscle-invasive bladder cancer. BJU Int 2008; 102:610-6. [PMID: 18384625 DOI: 10.1111/j.1464-410x.2008.07669.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To evaluate the inhibitory effects of a second-generation antisense oligonucleotide (ASO) targeting the cytoprotective chaperone heat-shock protein (HSP)-27 (OGX-427, OncoGeneX Technologies, Vancouver, Canada) on human bladder cancer growth both in vitro and in vivo as an intravesical agent in an orthotopic murine model. MATERIALS AND METHODS Human KU-7 bladder tumour cells were treated with OGX-427 or a mismatch (MM) control oligodeoxynucleotide (ODN) in vitro and were assessed for HSP27 expression, proliferation and apoptosis. KU-7-luc cells that stably express luciferase were inoculated in female nude mice by intravesical instillation and tumour size was measured using bioluminescence imaging. Mice with established KU-7-luc tumours were administered uncomplexed 'naked' OGX-427 or MM ODN as well as controlled-release microparticulate chitosan/oligonucleotide formulations intravesically. Tumour growth was monitored over time and tumours were analysed after death using immunohistochemistry and Western blotting. RESULTS In vitro, OGX-427 significantly decreased HSP27 protein levels and cellular viability. While naked OGX-427 showed only a trend in tumour suppression compared with MM ODN, OGX-427 complexed with chitosan significantly inhibited orthotopic tumour growth. The chitosan preparation induced some haematuria compared to naked ASO, but this formulation had superior tissue uptake of oligonucleotides and suppressed HSP27 tissue levels by 75%. CONCLUSION Intravesical OGX-427 instillation therapy showed promising antitumour activity and minimal toxicity in an orthotopic mouse model of high-grade bladder cancer. These findings provide pre-clinical proof-of-principle for the use of ASO as intravesical agents for non-muscle-invasive bladder cancer, and warrant further evaluation of efficacy and safety in early-phase clinical trials.
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Affiliation(s)
- Boris A Hadaschik
- The Prostate Centre at Vancouver General Hospital, Department of Urologic Sciences, Vancouver, BC, Canada
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