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Lawton SM, Manson MA, Fan MN, Chao TY, Chen CY, Kim P, Campbell C, Cai X, Vander Kooi A, Miao CH. Ultrasound-mediated gene delivery specifically targets liver sinusoidal endothelial cells for sustained FVIII expression in hemophilia A mice. Mol Ther 2024; 32:969-981. [PMID: 38341614 PMCID: PMC11163219 DOI: 10.1016/j.ymthe.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/30/2023] [Accepted: 02/07/2024] [Indexed: 02/12/2024] Open
Abstract
The ability to target the native production site of factor VIII (FVIII)-liver sinusoidal endothelial cells (LSECs)-can improve the outcome of hemophilia A (HA) gene therapy. By testing a matrix of ultrasound-mediated gene delivery (UMGD) parameters for delivering a GFP plasmid into the livers of HA mice, we were able to define specific conditions for targeted gene delivery to different cell types in the liver. Subsequently, two conditions were selected for experiments to treat HA mice via UMGD of an endothelial-specific human FVIII plasmid: low energy (LE; 50 W/cm2, 150 μs pulse duration) to predominantly target endothelial cells or high energy (HE; 110 W/cm2, 150 μs pulse duration) to predominantly target hepatocytes. Both groups of UMGD-treated mice achieved persistent FVIII activity levels of ∼10% over 84 days post treatment; however, half of the HE-treated mice developed low-titer inhibitors while none of the LE mice did. Plasma transaminase levels and histological liver examinations revealed minimal transient liver damage that was lower in the LE group than in the HE group. These results indicate that UMGD can safely target LSECs with a lower-energy condition to achieve persistent FVIII gene expression, demonstrating that this novel technology is highly promising for therapeutic correction of HA.
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Affiliation(s)
| | | | - Meng-Ni Fan
- Seattle Children's Research Institute, Seattle, WA, USA
| | - Ting-Yen Chao
- Seattle Children's Research Institute, Seattle, WA, USA
| | - Chun-Yu Chen
- Seattle Children's Research Institute, Seattle, WA, USA
| | - Peter Kim
- Seattle Children's Research Institute, Seattle, WA, USA
| | | | - Xiaohe Cai
- Seattle Children's Research Institute, Seattle, WA, USA
| | | | - Carol H Miao
- Seattle Children's Research Institute, Seattle, WA, USA; University of Washington, Seattle, WA, USA.
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2
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Kevadiya BD, Islam F, Deol P, Zaman LA, Mosselhy DA, Ashaduzzaman M, Bajwa N, Routhu NK, Singh PA, Dawre S, Vora LK, Nahid S, Mathur D, Nayan MU, Baldi A, Kothari R, Patel TA, Madan J, Gounani Z, Bariwal J, Hettie KS, Gendelman HE. Delivery of gene editing therapeutics. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2023; 54:102711. [PMID: 37813236 PMCID: PMC10843524 DOI: 10.1016/j.nano.2023.102711] [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: 04/24/2023] [Revised: 08/31/2023] [Accepted: 09/15/2023] [Indexed: 10/11/2023]
Abstract
For the past decades, gene editing demonstrated the potential to attenuate each of the root causes of genetic, infectious, immune, cancerous, and degenerative disorders. More recently, Clustered Regularly Interspaced Short Palindromic Repeats-CRISPR-associated protein 9 (CRISPR-Cas9) editing proved effective for editing genomic, cancerous, or microbial DNA to limit disease onset or spread. However, the strategies to deliver CRISPR-Cas9 cargos and elicit protective immune responses requires safe delivery to disease targeted cells and tissues. While viral vector-based systems and viral particles demonstrate high efficiency and stable transgene expression, each are limited in their packaging capacities and secondary untoward immune responses. In contrast, the nonviral vector lipid nanoparticles were successfully used for as vaccine and therapeutic deliverables. Herein, we highlight each available gene delivery systems for treating and preventing a broad range of infectious, inflammatory, genetic, and degenerative diseases. STATEMENT OF SIGNIFICANCE: CRISPR-Cas9 gene editing for disease treatment and prevention is an emerging field that can change the outcome of many chronic debilitating disorders.
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Affiliation(s)
- Bhavesh D Kevadiya
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA.
| | - Farhana Islam
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA; Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA.
| | - Pallavi Deol
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA; Institute of Modeling Collaboration and Innovation and Department of Biological Sciences, University of Idaho, Moscow, ID 83844, USA.
| | - Lubaba A Zaman
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA.
| | - Dina A Mosselhy
- Department of Virology, Faculty of Medicine, University of Helsinki, P.O. Box 21, 00014 Helsinki, Finland; Department of Veterinary Biosciences, Faculty of Veterinary Medicine, University of Helsinki, 00014 Helsinki, Finland; Microbiological Unit, Fish Diseases Department, Animal Health Research Institute, ARC, Dokki, Giza 12618, Egypt.
| | - Md Ashaduzzaman
- Department of Computer Science, University of Nebraska Omaha, Omaha, NE 68182, USA.
| | - Neha Bajwa
- University Institute of Pharma Sciences, Chandigarh University, Mohali, Punjab, India.
| | - Nanda Kishore Routhu
- Emory Vaccine Center, Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA; Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, USA.
| | - Preet Amol Singh
- University Institute of Pharma Sciences, Chandigarh University, Mohali, Punjab, India; Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University, Bathinda, Punjab.
| | - Shilpa Dawre
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKMs, NMIMS, Babulde Banks of Tapi River, MPTP Park, Mumbai-Agra Road, Shirpur, Maharashtra, 425405, India.
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom.
| | - Sumaiya Nahid
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA.
| | | | - Mohammad Ullah Nayan
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA.
| | - Ashish Baldi
- University Institute of Pharma Sciences, Chandigarh University, Mohali, Punjab, India; Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University, Bathinda, Punjab.
| | - Ramesh Kothari
- Department of Biosciences, Saurashtra University, Rajkot 360005, Gujarat, India.
| | - Tapan A Patel
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Jitender Madan
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-NIPER, Hyderabad 500037, Telangana, India.
| | - Zahra Gounani
- Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5, 00790 Helsinki, Finland.
| | - Jitender Bariwal
- Department of Cell Physiology and Molecular Biophysics, Center for Membrane Protein Research, Texas Tech University Health Sciences Center, School of Medicine, 3601 4th Street, Lubbock, TX 79430-6551, USA.
| | - Kenneth S Hettie
- Molecular Imaging Program at Stanford (MIPS), Department of Radiology, Department of Otolaryngology - Head & Neck Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA.
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5880, USA; Department of Pathology and Microbiology, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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3
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Chen KW, Hsu PH, Huang HL, Liu HL, Lin YT, Hsu CY, Lin JH, Lin YH. Targeting nanoparticle-conjugated microbubbles combined with ultrasound-mediated microbubble destruction for enhanced tumor therapy. Pharmacol Res 2022; 186:106532. [DOI: 10.1016/j.phrs.2022.106532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/20/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022]
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Yang CD, Jessen J, Lin KY. Ultrasound-assisted ocular drug delivery: A review of current evidence. JOURNAL OF CLINICAL ULTRASOUND : JCU 2022; 50:685-693. [PMID: 35474512 DOI: 10.1002/jcu.23214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/11/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
Efficient ocular drug delivery is a challenging clinical problem with various therapeutic options but no clearly preferred methodology. Given the ubiquity of ultrasound as a diagnostic technique, the safety profile of ultrasound in an ocular context, and the prospect of custom-made ultrasound-sensitive contrast agents, ultrasound presents an attractive ocular drug delivery modality. In this review, we evaluate our present understanding of ultrasound as it relates to ocular drug delivery and significant knowledge gaps in the field. In doing so, we hope to call attention to a potentially novel drug delivery pathway that could be manipulated to treat or cure ocular diseases.
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Affiliation(s)
- Christopher D Yang
- Department of Ophthalmology, University of California, Irvine School of Medicine, Irvine, California, USA
- Gavin Herbert Eye Institute, University of California, Irvine, Irvine, California, USA
| | - Jordan Jessen
- Gavin Herbert Eye Institute, University of California, Irvine, Irvine, California, USA
| | - Ken Y Lin
- Department of Ophthalmology, University of California, Irvine School of Medicine, Irvine, California, USA
- Gavin Herbert Eye Institute, University of California, Irvine, Irvine, California, USA
- Department of Biomedical Engineering, University of California, Irvine, California, USA
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5
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Ultrasound-mediated gene delivery of factor VIII plasmids for hemophilia A gene therapy in mice. MOLECULAR THERAPY - NUCLEIC ACIDS 2022; 27:916-926. [PMID: 35141050 PMCID: PMC8803955 DOI: 10.1016/j.omtn.2022.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/07/2022] [Indexed: 02/04/2023]
Abstract
Gene therapy offers great promises for a cure of hemophilia A resulting from factor VIII (FVIII) gene deficiency. We have developed and optimized a non-viral ultrasound-mediated gene delivery (UMGD) strategy. UMGD of reporter plasmids targeting mice livers achieved high levels of transgene expression predominantly in hepatocytes. Following UMGD of a plasmid encoding human FVIII driven by a hepatocyte-specific promoter/enhancer (pHP-hF8/N6) into the livers of hemophilia A mice, a partial phenotypic correction was achieved in treated mice. In order to achieve persistent and therapeutic FVIII gene expression, we adopted a plasmid (pHP-hF8-X10) encoding an FVIII variant with significantly increased FVIII secretion. By employing an optimized pulse-train ultrasound condition and immunomodulation, the treated hemophilia A mice achieved 25%–150% of FVIII gene expression on days 1–7 with very mild transient liver damage, as indicated by a small increase of transaminase levels that returned to normal within 3 days. Therapeutic levels of FVIII can be maintained persistently without the generation of inhibitors in mice. These results indicate that UMGD can significantly enhance the efficiency of plasmid DNA transfer into the liver. They also demonstrate the potential of this novel technology to safely and effectively treat hemophilia A.
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Zhao Z, Lin X, Zhang L, Liu X, Wang Q, Shi Y, Cui G, Cai H, Chen Y, Li Y, Hu A, Zhang Z, Liu J, Xie H, Zheng T, Liang X, Shuai X, Chen Y, Sun D. Lipidated Methotrexate Microbubbles: A Promising Rheumatoid Arthritis Theranostic Medicine Manipulated via Ultrasonic Irradiation. J Biomed Nanotechnol 2021; 17:1293-1304. [PMID: 34446133 DOI: 10.1166/jbn.2021.3105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
De novo designed lipidated methotrexate was synthesized and self-assembled into microbubbles for targeted rheumatoid arthritis theranostic treatment. Controlled lipidatedmethotrexate delivery was achieved by ultrasound-targetedmicrobubble destruction technique. Methotrexate was dissociated inflammatory microenvironment of synovial cavity, owing to representive low pH and enriched leucocyte esterase. We first manipulated methotrexate controlled release with RAW 264.7 cell line in vitro and further verified with rheumatoid arthritis rabbits in vivo. Results showed that lipidated methotrexate microbubbles precisely affected infection focus and significantly enhanced rheumatoid arthritis curative effect comparing with dissociative methotrexate. This study indicates that lipidated methotrexate microbubbles might be considered as a promising rheumatoid arthritis theranostics medicine.
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Affiliation(s)
- Zhuofei Zhao
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Xiaona Lin
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Lulu Zhang
- Department of Ultrasonography, Peking University Third Hospital, Beijing, 100191, China
| | - Xia Liu
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Qingwen Wang
- Department of Rheumatology, Peking University Shenzhen Hospital, Institute of Immune and Inflammatory Diseases, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Yu Shi
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Guanghui Cui
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Huali Cai
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Yan Chen
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Yongbin Li
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Azhen Hu
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Zhuxia Zhang
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Jun Liu
- Department of Pathology, Peking University Shenzhen Hospital, Shenzhen, 518036, Guangdong, China
| | - Haiqin Xie
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Tingting Zheng
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Xiaolong Liang
- Department of Ultrasonography, Peking University Third Hospital, Beijing, 100191, China
| | - Xintao Shuai
- PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Yun Chen
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Desheng Sun
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Institute of Ultrasound Medicine, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
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Anderson CD, Walton CB, Shohet RV. A Comparison of Focused and Unfocused Ultrasound for Microbubble-Mediated Gene Delivery. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:1785-1800. [PMID: 33812691 PMCID: PMC8169610 DOI: 10.1016/j.ultrasmedbio.2021.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 12/23/2020] [Accepted: 02/19/2021] [Indexed: 05/05/2023]
Abstract
We compared focused and unfocused ultrasound-targeted microbubble destruction (UTMD) for delivery of reporter plasmids to the liver and heart in mice. Optimal hepatic expression was seen with double-depth targeting at 5 and 13 mm in vivo, incorporating a low pulse repetition frequency and short pulse duration. Reporter expression was similar, but the transfection patterns were distinct, with intense foci of transfection using focused UTMD (F-UTMD). We then compared both approaches for cardiac delivery and found 10-fold stronger levels of reporter expression for F-UTMD and observed small areas of intense luciferase expression in the left ventricle. Non-linear contrast imaging of the liver before and after insonation also showed a substantially greater change in signal intensity for F-UTMD, suggesting distinct cavitation mechanisms for both approaches. Overall, similar levels of hepatic transgene expression were observed, but cardiac-directed F-UTMD was substantially more effective. Focused ultrasound presents a new frontier in UTMD-directed gene therapy.
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Affiliation(s)
- Cynthia D Anderson
- Department of Medicine, John A. Burns School of Medicine, Honolulu, Hawaii, USA
| | - Chad B Walton
- University of Hawaii at Manoa, Honolulu, Hawaii, USA
| | - Ralph V Shohet
- Department of Medicine, John A. Burns School of Medicine, Honolulu, Hawaii, USA.
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Zabaleta N, Hommel M, Salas D, Gonzalez-Aseguinolaza G. Genetic-Based Approaches to Inherited Metabolic Liver Diseases. Hum Gene Ther 2019; 30:1190-1203. [DOI: 10.1089/hum.2019.140] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Nerea Zabaleta
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Mirja Hommel
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - David Salas
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
| | - Gloria Gonzalez-Aseguinolaza
- Gene Therapy and Regulation of Gene Expression Program, Centro de Investigación Médica Aplicada, IDISNA, Universidad de Navarra, Pamplona, Spain
- Vivet Therapeutics, Pamplona, Spain
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Tran DM, Zhang F, Morrison KP, Loeb KR, Harrang J, Kajimoto M, Chavez F, Wu L, Miao CH. Transcutaneous Ultrasound-Mediated Nonviral Gene Delivery to the Liver in a Porcine Model. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2019; 14:275-284. [PMID: 31497618 PMCID: PMC6718807 DOI: 10.1016/j.omtm.2019.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/14/2019] [Indexed: 11/12/2022]
Abstract
Ultrasound (US)-mediated gene delivery (UMGD) of nonviral vectors was demonstrated in this study to be an effective method to transfer genes into the livers of large animals via a minimally invasive approach. We developed a transhepatic venous nonviral gene delivery protocol in combination with transcutaneous, therapeutic US (tUS) to facilitate significant gene transfer in pig livers. A balloon catheter was inserted into the pig hepatic veins of the target liver lobes via jugular vein access under fluoroscopic guidance. tUS exposure was continuously applied to the lobe with simultaneous infusion of pGL4 plasmid (encoding a luciferase reporter gene) and microbubbles. tUS was delivered via an unfocused, two-element disc transducer (H105) or a novel focused, single-element transducer (H114). We found applying transcutaneous US using H114 and H105 with longer pulses and reduced acoustic pressures resulted in an over 100-fold increase in luciferase activity relative to untreated lobes. We also showed effective UMGD by achieving focal regions of >105 relative light units (RLUs)/mg protein with minimal tissue damage, demonstrating the feasibility for clinical translation of this technique to treat patients with genetic diseases.
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Affiliation(s)
- Dominic M Tran
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Feng Zhang
- Department of Radiology, University of Washington, Seattle, WA 98195, USA
| | | | - Keith R Loeb
- Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - James Harrang
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Masaki Kajimoto
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | | | - Li Wu
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Carol H Miao
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA.,Department of Pediatrics, University of Washington, Seattle, WA 98195, USA
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Applications of Ultrasound to Stimulate Therapeutic Revascularization. Int J Mol Sci 2019; 20:ijms20123081. [PMID: 31238531 PMCID: PMC6627741 DOI: 10.3390/ijms20123081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/20/2019] [Accepted: 06/21/2019] [Indexed: 12/13/2022] Open
Abstract
Many pathological conditions are characterized or caused by the presence of an insufficient or aberrant local vasculature. Thus, therapeutic approaches aimed at modulating the caliber and/or density of the vasculature by controlling angiogenesis and arteriogenesis have been under development for many years. As our understanding of the underlying cellular and molecular mechanisms of these vascular growth processes continues to grow, so too do the available targets for therapeutic intervention. Nonetheless, the tools needed to implement such therapies have often had inherent weaknesses (i.e., invasiveness, expense, poor targeting, and control) that preclude successful outcomes. Approximately 20 years ago, the potential for using ultrasound as a new tool for therapeutically manipulating angiogenesis and arteriogenesis began to emerge. Indeed, the ability of ultrasound, especially when used in combination with contrast agent microbubbles, to mechanically manipulate the microvasculature has opened several doors for exploration. In turn, multiple studies on the influence of ultrasound-mediated bioeffects on vascular growth and the use of ultrasound for the targeted stimulation of blood vessel growth via drug and gene delivery have been performed and published over the years. In this review article, we first discuss the basic principles of therapeutic ultrasound for stimulating angiogenesis and arteriogenesis. We then follow this with a comprehensive cataloging of studies that have used ultrasound for stimulating revascularization to date. Finally, we offer a brief perspective on the future of such approaches, in the context of both further research development and possible clinical translation.
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Nishimura K, Yonezawa K, Fumoto S, Miura Y, Hagimori M, Nishida K, Kawakami S. Application of Direct Sonoporation from a Defined Surface Area of the Peritoneum: Evaluation of Transfection Characteristics in Mice. Pharmaceutics 2019; 11:pharmaceutics11050244. [PMID: 31121989 PMCID: PMC6571618 DOI: 10.3390/pharmaceutics11050244] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/14/2019] [Accepted: 05/20/2019] [Indexed: 02/07/2023] Open
Abstract
In the present study, we developed a sonoporation system, namely “direct sonoporation”, for transfecting the peritoneum from a defined surface area to avoid systematic side effects. Here, the transfection characteristics are explained because there is less information about direct sonoporation. Naked pDNA and nanobubbles were administered to diffusion cell attached to the visceral and parietal peritoneum from the liver and peritoneal wall surface, respectively. Then, ultrasound was irradiated. Direct sonoporation showed a higher transfection efficacy at the applied peritoneum site from the liver surface while other sites were not detected. Moreover, transgene expression was observed in the peritoneal mesothelial cells (PMCs) at the applied peritoneum site. No abnormality was observed in the inner part of the liver. Although transgene expression of the visceral peritoneum was tenfold higher than that of the parietal peritoneum, transgene expression was observed in the PMCs on both the applied peritoneum sites. These results suggest that direct sonoporation is a site-specific transfection method of the PMCs on the applied peritoneum site without transgene expression at other sites and show little toxicity in the inner tissues at the applied site via cavitation energy. This information is valuable for the development of an intraperitoneal sonoporation device for treatment of peritoneal diseases such as peritoneal fibrosis.
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Affiliation(s)
- Koyo Nishimura
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki-shi, Nagasaki 852-8588, Japan.
| | - Keita Yonezawa
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki-shi, Nagasaki 852-8588, Japan.
| | - Shintaro Fumoto
- Department of Pharmaceutics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki-shi, Nagasaki 852-8588, Japan.
| | - Yusuke Miura
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki-shi, Nagasaki 852-8588, Japan.
| | - Masayori Hagimori
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki-shi, Nagasaki 852-8588, Japan.
| | - Koyo Nishida
- Department of Pharmaceutics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki-shi, Nagasaki 852-8588, Japan.
| | - Shigeru Kawakami
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki-shi, Nagasaki 852-8588, Japan.
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Noble-Vranish ML, Song S, Morrison KP, Tran DM, Sun RR, Loeb KR, Keilman GW, Miao CH. Ultrasound-Mediated Gene Therapy in Swine Livers Using Single-Element, Multi-lensed, High-Intensity Ultrasound Transducers. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2018; 10:179-188. [PMID: 30105275 PMCID: PMC6077835 DOI: 10.1016/j.omtm.2018.06.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 06/26/2018] [Indexed: 01/21/2023]
Abstract
We have achieved significant enhancement of gene delivery into livers of large animals using ultrasound (US)-targeted microbubble (MB) destruction methods. An infusion of pGL4 (encoding a luciferase reporter gene) plasmid DNA (pDNA) and MBs into a portal-vein segmental branch of a porcine liver was exposed to US for 4 min. Therapeutic US induced cavitation of MBs to temporarily permeabilize the vascular endothelium and cell membranes, allowing entry of pDNA. We obtained a 64-fold enhancement in luciferase expression in pig livers compared to control without US using an unfocused, dual-element transducer (H105, center frequency [fc] = 1.10 MHz) at 2.7 MPa peak negative pressure (PNP). However, input electrical energy was limited, and modified transducers were designed to have spherical (H185A, fc = 1.10 MHz) or cylindrical foci (H185B, fc = 1.10 MHz; H185D, fc = 1.05 MHz) to enhance PNP output. The revised transducers required less electrical input to achieve 2.7 MPa PNP compared to H105, thereby allowing PNP outputs of up to 6.2 MPa without surpassing the piezo-material limitations. Subsequently, luciferase expression significantly improved up to 9,000-fold compared to controls with minor liver damage. These advancements will allow us to modify our current protocols toward minimally invasive US gene therapy.
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Affiliation(s)
- Misty L Noble-Vranish
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Shuxian Song
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | | | - Dominic M Tran
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Ryan R Sun
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Keith R Loeb
- Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | | | - Carol H Miao
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA.,Department of Pediatrics, University of Washington, Seattle, WA 98105, USA
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Tran DM, Harrang J, Song S, Chen J, Smith BM, Miao CH. Prolonging pulse duration in ultrasound-mediated gene delivery lowers acoustic pressure threshold for efficient gene transfer to cells and small animals. J Control Release 2018; 279:345-354. [PMID: 29702143 DOI: 10.1016/j.jconrel.2018.04.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 03/08/2018] [Accepted: 04/06/2018] [Indexed: 12/20/2022]
Abstract
While ultrasound-mediated gene delivery (UMGD) has been accomplished using high peak negative pressures (PNPs) of 2 MPa or above, emerging research showed that this may not be a requirement for microbubble (MB) cavitation. Thus, we investigated lower-pressure conditions close to the MB inertial cavitation threshold and focused towards further increasing gene transfer efficiency and reducing associated cell damage. We created a matrix of 21 conditions (n = 3/cond.) to test in HEK293T cells using pulse durations spanning 18 μs-36 ms and PNPs spanning 0.5-2.5 MPa. Longer pulse duration conditions yielded significant increase in transgene expression relative to sham with local maxima between 20 J and 100 J energy curves. A similar set of 17 conditions (n = 4/cond.) was tested in mice using pulse durations spanning 18 μs-22 ms and PNPs spanning 0.5-2.5 MPa. We observed local maxima located between 1 J and 10 J energy curves in treated mice. Of these, several low pressure conditions showed a decrease in ALT and AST levels while maintaining better or comparable expression to our positive control, indicating a clear benefit to allow for effective transfection with minimized tissue damage versus the high-intensity control. Our data indicates that it is possible to eliminate the requirement of high PNPs by prolonging pulse durations for effective UMGD in vitro and in vivo, circumventing the peak power density limitations imposed by piezo-materials used in US transducers. Overall, these results demonstrate the advancement of UMGD technology for achieving efficient gene transfer and potential scalability to larger animal models and human application.
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Affiliation(s)
- Dominic M Tran
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - James Harrang
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Shuxian Song
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Jeremy Chen
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Bryn M Smith
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA
| | - Carol H Miao
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA 98101, USA; Department of Pediatrics, University of Washington, Seattle, WA 98195, USA.
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Chertok B, Langer R. Circulating Magnetic Microbubbles for Localized Real-Time Control of Drug Delivery by Ultrasonography-Guided Magnetic Targeting and Ultrasound. Am J Cancer Res 2018; 8:341-357. [PMID: 29290812 PMCID: PMC5743552 DOI: 10.7150/thno.20781] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 10/03/2017] [Indexed: 01/09/2023] Open
Abstract
Image-guided and target-selective modulation of drug delivery by external physical triggers at the site of pathology has the potential to enable tailored control of drug targeting. Magnetic microbubbles that are responsive to magnetic and acoustic modulation and visible to ultrasonography have been proposed as a means to realize this drug targeting strategy. To comply with this strategy in vivo, magnetic microbubbles must circulate systemically and evade deposition in pulmonary capillaries, while also preserving magnetic and acoustic activities in circulation over time. Unfortunately, challenges in fabricating magnetic microbubbles with such characteristics have limited progress in this field. In this report, we develop magnetic microbubbles (MagMB) that display strong magnetic and acoustic activities, while also preserving the ability to circulate systemically and evade pulmonary entrapment. Methods: We systematically evaluated the characteristics of MagMB including their pharmacokinetics, biodistribution, visibility to ultrasonography and amenability to magneto-acoustic modulation in tumor-bearing mice. We further assessed the applicability of MagMB for ultrasonography-guided control of drug targeting. Results: Following intravenous injection, MagMB exhibited a 17- to 90-fold lower pulmonary entrapment compared to previously reported magnetic microbubbles and mimicked circulation persistence of the clinically utilized Definity microbubbles (>10 min). In addition, MagMB could be accumulated in tumor vasculature by magnetic targeting, monitored by ultrasonography and collapsed by focused ultrasound on demand to activate drug deposition at the target. Furthermore, drug delivery to target tumors could be enhanced by adjusting the magneto-acoustic modulation based on ultrasonographic monitoring of MagMB in real-time. Conclusions: Circulating MagMB in conjunction with ultrasonography-guided magneto-acoustic modulation may provide a strategy for tailored minimally-invasive control over drug delivery to target tissues.
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Manta S, Renault G, Delalande A, Couture O, Lagoutte I, Seguin J, Lager F, Houzé P, Midoux P, Bessodes M, Scherman D, Bureau MF, Marie C, Pichon C, Mignet N. Cationic microbubbles and antibiotic-free miniplasmid for sustained ultrasound-mediated transgene expression in liver. J Control Release 2017; 262:170-181. [PMID: 28710005 DOI: 10.1016/j.jconrel.2017.07.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/06/2017] [Accepted: 07/09/2017] [Indexed: 11/15/2022]
Abstract
Despite the increasing number of clinical trials in gene therapy, no ideal methods still allow non-viral gene transfer in deep tissues such as the liver. We were interested in ultrasound (US)-mediated gene delivery to provide long term liver expression. For this purpose, new positively charged microbubbles were designed and complexed with pFAR4, a highly efficient small length miniplasmid DNA devoid of antibiotic resistance sequence. Sonoporation parameters, such as insonation time, acoustic pressure and duration of plasmid injection were controlled under ultrasound imaging guidance. The optimization of these various parameters was performed by bioluminescence optical imaging of luciferase reporter gene expression in the liver. Mice were injected with 50μg pFAR4-LUC either alone, or complexed with positively charged microbubbles, or co-injected with neutral MicroMarker™ microbubbles, followed by low ultrasound energy application to the liver. Injection of the pFAR4 encoding luciferase alone led to a transient transgene expression that lasted only for two days. The significant luciferase signal obtained with neutral microbubbles decreased over 2days and reached a plateau with a level around 1 log above the signal obtained with pFAR4 alone. With the newly designed positively charged microbubbles, we obtained a much stronger bioluminescence signal which increased over 2days. The 12-fold difference (p<0.05) between MicroMarker™ and our positively charged microbubbles was maintained over a period of 6months. Noteworthy, the positively charged microbubbles led to an improvement of 180-fold (p<0.001) as regard to free pDNA using unfocused ultrasound performed at clinically tolerated ultrasound amplitude. Transient liver damage was observed when using the cationic microbubble-pFAR4 complexes and the optimized sonoporation parameters. Immunohistochemistry analyses were performed to determine the nature of cells transfected. The pFAR4 miniplasmid complexed with cationic microbubbles allowed to transfect mostly hepatocytes compared to its co-injection with MicroMarker™ which transfected more preferentially endothelial cells.
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Affiliation(s)
- Simona Manta
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
| | - Gilles Renault
- INSERM, U1016, Institut Cochin, Paris, France; CNRS, UMR8104, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, France
| | - Anthony Delalande
- Centre de Biophysique Moléculaire and Université d'Orléans, UPR 4301, F-45071 Orléans, France
| | - Olivier Couture
- Institut Langevin - Ondes et Images, ESPCI ParisTech, PSL Research University, CNRS UMR7587, INSERM U979, 1, rue Jussieu, 75238 Paris, Cedex 05, France
| | - Isabelle Lagoutte
- INSERM, U1016, Institut Cochin, Paris, France; CNRS, UMR8104, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, France
| | - Johanne Seguin
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
| | - Franck Lager
- INSERM, U1016, Institut Cochin, Paris, France; CNRS, UMR8104, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, France
| | - Pascal Houzé
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
| | - Patrick Midoux
- Centre de Biophysique Moléculaire and Université d'Orléans, UPR 4301, F-45071 Orléans, France
| | - Michel Bessodes
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
| | - Daniel Scherman
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
| | - Michel-Francis Bureau
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
| | - Corinne Marie
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
| | - Chantal Pichon
- Centre de Biophysique Moléculaire and Université d'Orléans, UPR 4301, F-45071 Orléans, France.
| | - Nathalie Mignet
- CNRS, UTCBS UMR 8258, F-75006 Paris, France; Université Paris Descartes, Sorbonne-Paris-Cité, UTCBS, F-75006 Paris, France; Chimie ParisTech, PSL Research University, Unité de Technologies Chimiques et Biologiques pour la Santé (UTCBS), F-75005 Paris, France; INSERM, UTCBS U 1022, F-75006 Paris, France
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Li S, Xie X, Yang X, Liu L, Tang X. [Research of enhanced green fluorescent protein gene transfer with ultrasound-mediated microbubble destruction in bone defects]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2017; 31:437-442. [PMID: 29798609 DOI: 10.7507/1002-1892.201611059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective To investigate the effect of ultrasonic irradiation time on enhanced green fluorescent protein (EGFP) gene transfection efficiency and local tissue in bone defects using ultrasound-mediated microbubble destruction. Methods Thirty 3-month-old New Zealand rabbits (2.5-3.0 kg in weight) were randomly divided into 5 groups ( n=6) and bone defect models were made on the right ulna. At 10 days after modeling, suspension of microbubbles and EGFP plasmids were locally injected (0.3 mL/kg) and then ultrasound was performed on defect at a frequency of 1 MHz, a intensity of 0.5 W/cm 2, and a duty ratio of 20% for 1, 2, 3, 4, and 5 minutes respectively (in 1, 2, 3, 4, and 5 minutes groups respectively). The survival condition was observed. Rabbits were sacrificed for gross observation at 7 days after transfer. The gene expression was observed by fluorescence staining. HE staining and transmission electron microscopy were used to observe the local tissue damage. Results The animals all survived. New soft tissue formed in bone defects area at 1 week after transfer, the surrounding muscle tissue was partly filled in it. Green fluorescence expression was observed in all rabbits. The expression was the strongest in 2 minutes group, and was the weakest in 1 minute group. The absorbance ( A) value showed significant differences when compared 1 minute and 2 minutes groups with other groups ( P<0.05), but no significant difference was found between 3, 4, and 5 minutes groups ( P>0.05). Tissue damage was observed in all groups and it was aggravated with the increase of irradiation time. Conclusion EGFP transfection efficiency in bone defect by ultrasound-mediated microbubble destruction is related to irradiation time. EGFP gene can be efficiently transfected without obvious toxicity at 1 MHz, 0.5W/cm 2, and duty ratio of 20% for 2 minutes in bone defects of rabbits.
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Affiliation(s)
- Shiwei Li
- Department of Pediatric Surgery, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Xiaoli Xie
- Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Guangdong, 510623, P.R.China
| | - Xiaodong Yang
- Department of Pediatric Surgery, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Lijun Liu
- Department of Pediatric Surgery, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China
| | - Xueyang Tang
- Department of Pediatric Surgery, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,
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Keravnou CP, De Cock I, Lentacker I, Izamis ML, Averkiou MA. Microvascular Injury and Perfusion Changes Induced by Ultrasound and Microbubbles in a Machine-Perfused Pig Liver. ULTRASOUND IN MEDICINE & BIOLOGY 2016; 42:2676-2686. [PMID: 27554068 DOI: 10.1016/j.ultrasmedbio.2016.06.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/10/2016] [Accepted: 06/21/2016] [Indexed: 06/06/2023]
Abstract
Localized drug delivery and uptake can benefit from the combined action of ultrasound and microbubbles at a specific site. Some of the possible mechanisms suggested are vessel poration and/or cell poration, but the exact acoustic parameters that trigger those phenomena remain unknown. Ex vivo machine perfusion of human-sized organs is a technique that provides an ideal environment for pre-clinical investigations with high physiologic relevance not possible with in vitro experiments. In this work, ex vivo machine-perfused pig livers were combined with an image-guided therapy system to investigate microvascular flow changes caused by the interaction of ultrasound-driven microbubbles with the vasculature. The effects of acoustic pressure (1.7-4 MPa peak negative pressures) and number of cycles (1000 or 20 cycles) were examined. Perfusion changes caused by the action of ultrasound on microbubbles in the microcirculation were qualitatively and quantitatively assessed with contrast-enhanced ultrasound and used as a metric of the extent of vessel perforation, thus, extravasation. Areas that were exposed to peak negative pressures above 1.7 MPa underwent a detectable and irreversible perfusion change. Complete devascularization of the area exposed to ultrasound was observed at much larger acoustic pressures (∼4 MPa). Shorter acoustic pulses (20 cycles) produced markedly fewer perfusion changes than longer pulses (1000 cycles) under the same acoustic amplitude exposure.
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Affiliation(s)
- Christina P Keravnou
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, Cyprus; Department of Bioengineering, University of Washington, Seattle, Washington, USA
| | - Ine De Cock
- Department of Bioengineering, University of Washington, Seattle, Washington, USA; Laboratory for General Biochemistry and Physical Pharmacy, Ghent University, Ghent, Belgium
| | - Ine Lentacker
- Laboratory for General Biochemistry and Physical Pharmacy, Ghent University, Ghent, Belgium
| | - Maria-Louisa Izamis
- Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, Cyprus
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Ultrasound-targeted microbubble destruction in gene therapy: A new tool to cure human diseases. Genes Dis 2016; 4:64-74. [PMID: 30258909 PMCID: PMC6136600 DOI: 10.1016/j.gendis.2016.08.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 08/01/2016] [Indexed: 01/11/2023] Open
Abstract
Human gene therapy has made significant advances in less than two decades. Within this short period of time, gene therapy has proceeded from the conceptual stage to technology development and laboratory research, and finally to clinical trials for the treatment of a variety of deadly diseases. Cardiovascular disease, cancer, and stroke are leading causes of death worldwide. Despite advances in medical, interventional, radiation and surgical treatments, the mortality rate remains high, and the need for novel therapies is great. Gene therapy provides an efficient approach to disease treatment. Notable advances in gene therapy have been made for genetic disorders, including severe combined immune deficiency, chronic granulomatus disorder, hemophilia and blindness, as well as for acquired diseases, including cancer and neurodegenerative and cardiovascular diseases. However, lack of an efficient delivery system to target cells as well as the difficulty of sustained expression of transgenes has hindered advancements in gene therapy. Ultrasound targeted microbubble destruction (UTMD) is a promising approach for target-specific gene delivery, and it has been successfully investigated for the treatment of many diseases in the past decade. In this paper, we review UTMD-mediated gene delivery for the treatment of cardiovascular diseases, cancer and stroke.
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19
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Li J, Zhou P, Li L, Zhang Y, Shao Y, Tang L, Tian S. Effects of Cationic Microbubble Carrying CD/TK Double Suicide Gene and αVβ3 Integrin Antibody in Human Hepatocellular Carcinoma HepG2 Cells. PLoS One 2016; 11:e0158592. [PMID: 27391603 PMCID: PMC4938599 DOI: 10.1371/journal.pone.0158592] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/17/2016] [Indexed: 02/07/2023] Open
Abstract
Objective Hepatocellular carcinoma (HCC), mostly derived from hepatitis or cirrhosisis, is one of the most common types of liver cancer. T-cell mediated immune response elicited by CD/TK double suicide gene has shown a substantial antitumor effect in HCC. Integrin αVβ3 over expresssion has been suggested to regulate the biology behavior of HCC. In this study, we investigated the strategy of incorporating CD/TK double suicide gene and anti-αVβ3 integrin monoclonal antibodies into cationic microbubbles (CMBsαvβ3), and evaluated its killing effect in HCC cells. Methods To improve the transfection efficiency of targeted CD/TK double suicide gene, we adopted cationic microbubbles (CMBs), a cationic delivery agent with enhanced DNA-carrying capacity. The ultrasound and high speed shearing method was used to prepare the non-targeting cationic microbubbles (CMBs). Using the biotin-avidin bridge method, αVβ3 integrin antibody was conjugated to CMBs, and CMBsαvβ3 was generated to specifically target to HepG2 cells. The morphology and physicochemical properties of the CMBsαvβ3 was detected by optical microscope and zeta detector. The conjugation of plasmid and the antibody in CMBsαvβ3 were examined by immunofluorescent microscopy and flow cytometry. The binding capacities of CMBsαvβ3 and CMBs to HCC HepG2 and normal L-02 cells were compared using rosette formation assay. To detect EGFP fluorescence and examine the transfection efficiencies of CMBsαvβ3 and CMBs in HCC cells, fluorescence microscope and contrast-enhanced sonography were adopted. mRNA and protein level of CD/TK gene were detected by RT-PCR and Western blot, respectively. To evaluate the anti-tumor effect of CMBsαvβ3, HCC cells with CMBsαvβ3 were exposed to 5-flurocytosine / ganciclovir (5-FC/GCV). Then, cell cycle distribution after treatment were detected by PI staining and flow cytometry. Apoptotic cells death were detected by optical microscope and assessed by MTT assay and TUNEL-staining assay. Results CMBsαvβ3 had a regular shape and good dispersion. Compared to CMBs, CMBsαvβ3 had more stable concentrations of αVβ3 ligand and pEGFP-KDRP-CD/TK, and CMBsαvβ3 was much sticker to HepG2 HCC cells than normal liver L-02cells. Moreover, after exposed to anti-αVβ3 monoclonal antibody, the adhesion of CMBsαvβ3 to HepG2 cells and L-02 cells were significantly reduced. Also, CMBsαvβ3 demonstrated a substantially higher efficiency in pEGFP-KDRP-CD/TK plasmid transfection in HepG2 cells than CMBs. In addition, CMBsαvβ3 could significantly facilitate 5-FC/GCV-induced cell cycle arrest in S phase. Moreover, treatment of 5-FC/GCV combined with CMBsαvβ3 resulted in a marked apoptotic cell death in HepG2 and SK-Herp-1 HCC cells. In vitro, treatment of 5-FC/GCV combined with CMBsαvβ3 suppresed cell proliferation. In nude mice model, 5-FU + GCV combined with plasmid + CMBsαvβ3were able to significantly suppress tumor volumes. Conclusion Through biotin-avidin mediation system, CMBsαvβ3 were successfully generated to specifically target HCC HepG2 cells. More importantly, CMBsαvβ3 could significantly facilitate 5-FC/GCV-induced cell cycle arrest and apoptotic cell death in HepG2 cells. Our study demonstrated a potential strategy that could be translated clinically to improve liver tumor gene delivery.
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Affiliation(s)
- Jiale Li
- Department of Ultrasound,the Third Xiangya Hospital, Central South University, Changsha, Hunan China
| | - Ping Zhou
- Department of Ultrasound,the Third Xiangya Hospital, Central South University, Changsha, Hunan China
- * E-mail:
| | - Lan Li
- Department of Ultrasound,the Third Xiangya Hospital, Central South University, Changsha, Hunan China
| | - Yan Zhang
- Department of Ultrasound,the Third Xiangya Hospital, Central South University, Changsha, Hunan China
| | - Yang Shao
- Department of Ultrasound,the Third Xiangya Hospital, Central South University, Changsha, Hunan China
| | - Li Tang
- MDFLOW System,Corporate Park of Doral, Doral, Florida, United States of America
| | - Shuangming Tian
- Department of Ultrasound,the Third Xiangya Hospital, Central South University, Changsha, Hunan China
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Evaluation of in vivo antitumor effects of ANT2 shRNA delivered using PEI and ultrasound with microbubbles. Gene Ther 2015; 22:325-32. [DOI: 10.1038/gt.2014.120] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Revised: 11/18/2014] [Accepted: 11/25/2014] [Indexed: 01/27/2023]
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21
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Kost J, Azagury A. Blotting from PhastGel to Membranes by Ultrasound. Methods Mol Biol 2015; 1312:237-246. [PMID: 26044006 DOI: 10.1007/978-1-4939-2694-7_25] [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: 06/04/2023]
Abstract
Ultrasound based approach for enhanced protein blotting is proposed. Three minutes of ultrasound exposure (1 MHz, 2.5 W/cm(2)) was sufficient for a clear transfer of proteins from a polyacrylamide gel (PhastGel) to nitrocellulose or Nylon 66 Biotrans membrane. The proteins evaluated were prestained sodium dodecyl sulfate-polyacrylamide standards (18,500-106,000 Da) and 14C-labeled Rainbow protein molecular weight markers (14,300-200,000 Da).
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Affiliation(s)
- Joseph Kost
- Department of Chemical Engineering, Ben Gurion University of the Negev, Beer-Sheva, 84105, Israel,
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Abstract
Plasmid or non-viral gene therapy offers an alternative to classic viral gene delivery that negates the need for a biological vector. In this case, delivery is enhanced by a variety of approaches including lipid or polymer conjugation, particle-mediated delivery, hydrodynamic delivery, ultrasound or electroporation. Electroporation was originally used as a laboratory tool to deliver DNA to bacterial and mammalian cells in culture. Electrode development allowed this technique to be modified for in vivo use. After preclinical therapeutic studies, clinical delivery of cell impermeant chemotherapeutic agents progressed to clinical delivery of plasmid DNA. One huge benefit of this delivery technique is its malleability. The pulse protocol used for plasmid delivery can be fine-tuned to control the levels and duration of subsequent transgene expression. This fine-tuning allows transgene expression to be tailored to each therapeutic application. Effective and appropriate expression induces the desired clinical response that is a critical component for any gene therapy. This chapter focuses on clinical trials using in vivo electroporation or electrotransfer as a plasmid delivery method. The first clinical trial was initiated in 2004, and now more than fifty trials use electric fields for gene delivery. Safety and tolerability has been demonstrated by several groups, and early clinical efficacy results are promising in both cancer therapeutic and infectious disease vaccine applications.
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Affiliation(s)
- Richard Heller
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, USA; School of Medical Diagnostics and Translational Sciences, College of Health Sciences, Old Dominion University, Norfolk, VA, USA
| | - Loree C Heller
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, VA, USA; School of Medical Diagnostics and Translational Sciences, College of Health Sciences, Old Dominion University, Norfolk, VA, USA
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Wang X, Chen H, Zhang K, Ma M, Li F, Zeng D, Zheng S, Chen Y, Jiang L, Xu H, Shi J. An intelligent nanotheranostic agent for targeting, redox-responsive ultrasound imaging, and imaging-guided high-intensity focused ultrasound synergistic therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:1403-1411. [PMID: 24288148 DOI: 10.1002/smll.201302846] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 10/21/2013] [Indexed: 06/02/2023]
Abstract
A novel multifunctional nanotheranostic agent with targeting, redox-responsive ultrasound imaging and ultrasound imaging-guided high-intensity focused ultrasound (HIFU) therapy (MSNC-PEG-HA(SS)-PFH, abbreviated as MPH(SS)-PFH) capabilities is developed. The redox-responsive guest molecule release and ultrasound imaging functions can be both integrated in such a "smart" theranostic agent, which is accomplished by the redox-triggered transition from the crosslinking state to retrocrosslinking state of the grafted polyethylene glycol-disulfide hyaluronic acid molecules on the particle surface when reaching a reducing environment in vitro. More importantly, under the tailored ultrasound imaging guiding, in vivo Hela tumor-bearing nude mice can be thoroughly and spatial-accurately ablated during HIFU therapy, due to the targeted accumulation, responsive ultrasound imaging guidance and the synergistic ablation functions of nanotheranostic agent MPH(SS)-PFH in the tumors. This novel multifunctional nano-platform can serve as a promising candidate for further studies on oncology therapy, due to its high stability, responsive and indicative ultrasound imaging of tumors, and enhanced HIFU therapeutic efficiency and spatial accuracy under ultrasound-guidance.
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Affiliation(s)
- Xia Wang
- State Key Laboratory of High Performance Ceramic and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai, 200050, P.R. China
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24
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Sun RR, Noble ML, Sun SS, Song S, Miao CH. Development of therapeutic microbubbles for enhancing ultrasound-mediated gene delivery. J Control Release 2014; 182:111-20. [PMID: 24650644 DOI: 10.1016/j.jconrel.2014.03.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 02/21/2014] [Accepted: 03/03/2014] [Indexed: 12/15/2022]
Abstract
Ultrasound (US)-mediated gene delivery has emerged as a promising non-viral method for safe and selective gene delivery. When enhanced by the cavitation of microbubbles (MBs), US exposure can induce sonoporation that transiently increases cell membrane permeability for localized delivery of DNA. The present study explores the effect of generalizable MB customizations on MB facilitation of gene transfer compared to Definity®, a clinically available contrast agent. These modifications are 1) increased MB shell acyl chain length (RN18) for elevated stability and 2) addition of positive charge on MB (RC5K) for greater DNA associability. The MB types were compared in their ability to facilitate transfection of luciferase and GFP reporter plasmid DNA in vitro and in vivo under various conditions of US intensity, MB dosage, and pretreatment MB-DNA incubation. The results indicated that both RN18 and RC5K were more efficient than Definity®, and that the cationic RC5K can induce even greater transgene expression by increasing payload capacity with prior DNA incubation without compromising cell viability. These findings could be applied to enhance MB functions in a wide range of therapeutic US/MB gene and drug delivery approach. With further designs, MB customizations have the potential to advance this technology closer to clinical application.
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Affiliation(s)
- Ryan R Sun
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, USA
| | - Misty L Noble
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, USA
| | - Samuel S Sun
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, USA
| | - Shuxian Song
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, USA
| | - Carol H Miao
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, USA; Dept. of Pediatrics, University of Washington, Seattle, USA.
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25
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Abstract
Nonviral vectors which offer a safer and versatile alternative to viral vectors have been developed to overcome problems caused by viral carriers. However, their transfection efficacy or level of expression is substantially lower than viral vectors. Among various nonviral gene vectors, lipid nanoparticles are an ideal platform for the incorporation of safety and efficacy into a single delivery system. In this chapter, we highlight current lipidic vectors that have been developed for gene therapy of tumors and other diseases. The pharmacokinetic, toxic behaviors and clinic trials of some successful lipids particles are also presented.
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Radhakrishnan K, Bader KB, Haworth KJ, Kopechek JA, Raymond JL, Huang SL, McPherson DD, Holland CK. Relationship between cavitation and loss of echogenicity from ultrasound contrast agents. Phys Med Biol 2013; 58:6541-63. [PMID: 24002637 PMCID: PMC4170692 DOI: 10.1088/0031-9155/58/18/6541] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Ultrasound contrast agents (UCAs) have the potential to nucleate cavitation and promote both beneficial and deleterious bioeffects in vivo. Previous studies have elucidated the pulse-duration-dependent pressure amplitude threshold for rapid loss of echogenicity due to UCA fragmentation. Previous studies have demonstrated that UCA fragmentation was concomitant with inertial cavitation. The purpose of this study was to evaluate the relationship between stable and inertial cavitation thresholds and loss of echogenicity of UCAs as a function of pulse duration. Determining the relationship between cavitation thresholds and loss of echogenicity of UCAs would enable monitoring of cavitation based upon the onscreen echogenicity in clinical applications. Two lipid-shelled UCAs, echogenic liposomes (ELIP) and Definity®, were insonified by a clinical ultrasound scanner in duplex spectral Doppler mode at four pulse durations ('sample volumes') in both a static system and a flow system. Cavitation emissions from the UCAs insonified by Doppler pulses were recorded using a passive cavitation detection system and stable and inertial cavitation thresholds ascertained. Loss of echogenicity from ELIP and Definity® was assessed within regions of interest on B-mode images. A numerical model based on UCA rupture predicted the functional form of the loss of echogenicity from ELIP and Definity®. Stable and inertial cavitation thresholds were found to have a weak dependence on pulse duration. Stable cavitation thresholds were lower than inertial cavitation thresholds. The power of cavitation emissions was an exponential function of the loss of echogenicity over the investigated range of acoustic pressures. Both ELIP and Definity® lost more than 80% echogenicity before the onset of stable or inertial cavitation. Once this level of echogenicity loss occurred, both stable and inertial cavitation were detected in the physiologic flow phantom. These results imply that stable and inertial cavitation are necessary in order to trigger complete loss of echogenicity acoustically from UCAs and this finding can be used when planning diagnostic and therapeutic applications.
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Noble ML, Kuhr CS, Graves SS, Loeb KR, Sun SS, Keilman GW, Morrison KP, Paun M, Storb RF, Miao CH. Ultrasound-targeted microbubble destruction-mediated gene delivery into canine livers. Mol Ther 2013; 21:1687-94. [PMID: 23732985 DOI: 10.1038/mt.2013.107] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 04/24/2013] [Indexed: 12/16/2022] Open
Abstract
Ultrasound (US) was applied to a targeted canine liver lobe simultaneously with injection of plasmid DNA (pDNA)/microbubble (MB) complexes into a portal vein (PV) segmental branch and occlusion of the inferior vena cava (IVC) to facilitate DNA uptake. By using a 1.1 MHz, 13 mm diameter transducer, a fivefold increase in luciferase activity was obtained at 3.3 MPa peak negative pressure (PNP) in the treated lobe. For more effective treatment of large tissue volumes in canines, a planar unfocused transducer with a large effective beam diameter (52 mm) was specifically constructed. Its apodized dual element configuration greatly reduced the near-field transaxial pressure variations, resulting in a remarkably uniform field of US exposure for the treated tissues. Together with a 15 kW capacity US amplifier, a 692-fold increase of gene expression was achieved at 2.7 MPa. Transaminase and histology analysis indicated minimal tissue damage. These experiments represent an important developmental step toward US-mediated gene delivery in large animals and clinics.
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Affiliation(s)
- Misty L Noble
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, Washington 98101, USA
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28
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The use of cationic microbubbles to improve ultrasound-targeted gene delivery to the ischemic myocardium. Biomaterials 2012; 34:2107-16. [PMID: 23245332 DOI: 10.1016/j.biomaterials.2012.11.041] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 11/22/2012] [Indexed: 11/20/2022]
Abstract
We synthesized a cationic microbubble (CMB) with the aim of enhancing its DNA-carrying capacity to improve targeted gene transfection of the ischemic heart for cardiac regeneration. We previously reported that ultrasound-targeted microbubble destruction (UTMD) employing the commercial Definity microbubble (MB) successfully transfected genes into rodent hearts, but the transfection efficiency was modest. We synthesized a CMB and compared its DNA-carrying capacity and reporter gene transfection efficiency with the Definity MB. The CMB bound 70% more plasmid DNA than the Definity MB. UTMD-mediated gene delivery with the CMB enhanced both transfection efficiency and gene expression. In vivo studies assessed the ability of the CMB to deliver the therapeutic AKT gene to the ischemic rat myocardium and evaluated the effects on apoptosis, angiogenesis, and cardiac function. AKT transfection with the CMB reduced infarct size (p < 0.05), increased infarct thickness (p < 0.05), reduced apoptosis (p < 0.05), increased vascular density (p < 0.05), and improved cardiac perfusion and function (p < 0.05) compared to the Definity MB. Delivery of AKT with the CMB resulted in greater cardiac functional improvements compared to the Definity MB. UTMD therapy with this CMB provides an efficient platform for the targeted delivery of factors required to regenerate the ischemic heart and preserve cardiac function.
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Yang D, Tan KB, Gao YH, Liu H, Yang WX. Effects of diagnostic ultrasound-targeted microbubble destruction on permeability of normal liver in rats. ULTRASONICS 2012; 52:1065-1071. [PMID: 23021237 DOI: 10.1016/j.ultras.2012.09.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 08/22/2012] [Accepted: 09/01/2012] [Indexed: 06/01/2023]
Abstract
This work investigated the effect of diagnostic ultrasound-targeted microbubble destruction (UTMD) on the permeability of normal liver tissue and the safety of this technique. One hundred and four rats were divided into four groups: the control group, the microbubble-only (MB) group, the ultrasound-only (US) group, and the ultrasound-targeted microbubble destruction group (UTMD). The permeabilities of capillaries and cell membranes were determined using Evans blue and lanthanum nitrate as tracers, respectively. The amount of Evans blue was approximately fourfold higher in the UTMD group than in the control, MB-only, and US-only groups (all P<0.01). Evans blue extravasation, visualized as red fluorescence, was detectable by laser confocal scanning microscopy in the parenchyma only in the UTMD group. Lanthanum nitrate-tracing transmission electron microscopy examination indicated that intracellular lanthanum was detectable in the cytoplasm only in the UTMD group. Blood chemical analysis indicated that the effect of diagnostic ultrasound-targeted microbubble destruction on the rats' serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels was transient and recoverable and that this technique had no obvious effect on renal function. Cellular swelling was observed in liver cells in the UTMD group at 0.5 h, but this swelling was no longer apparent after 1 week. These results suggest that diagnostic ultrasound-targeted microbubble destruction can increase the capillary and cell membrane permeabilities in normal liver tissue without a significant increase in hepatic and renal toxicity.
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Affiliation(s)
- Dan Yang
- Department of Ultrasound, Xinqiao Hospital, The Third Military Medical University, No. 183 Xinqiao Street, Chongqing 400037, China.
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Castle J, Butts M, Healey A, Kent K, Marino M, Feinstein SB. Ultrasound-mediated targeted drug delivery: recent success and remaining challenges. Am J Physiol Heart Circ Physiol 2012. [PMID: 23203969 DOI: 10.1152/ajpheart.00265.2012] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The potential clinical value of developing a novel, nonviral, ultrasound-directed gene and drug delivery system is immense. Investigators soon will initiate clinical trials with the goal of treating a wide variety of maladies using noninvasive, ultrasound-based technology. The ongoing, scientific validation associated with promising preclinical success portents a novel range of therapeutics. The clinical utility and eventual clinical successes await vigorous testing. This review highlights the recent successes and challenges within the field of ultrasound-mediated drug delivery.
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Affiliation(s)
- Jason Castle
- General Electric Global Research, Niskayuna, New York, USA
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31
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Song S, Noble M, Sun S, Chen L, Brayman AA, Miao CH. Efficient microbubble- and ultrasound-mediated plasmid DNA delivery into a specific rat liver lobe via a targeted injection and acoustic exposure using a novel ultrasound system. Mol Pharm 2012; 9:2187-96. [PMID: 22779401 DOI: 10.1021/mp300037t] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To develop efficient gene delivery in larger animals, based on a previous mouse study, we explored the luciferase reporter gene transfer in rats by establishing a novel unfocused ultrasound system with simultaneous targeted injection of a plasmid and microbubble mixture into a specific liver lobe through a portal vein branch. Luciferase expression was significantly enhanced over 0-30 vol % of the Definity microbubbles, with a plateau between 0.5 and 30 vol %. The increase of gene delivery efficiency also depended on the acoustic peak negative pressure, achieving over 100-fold enhancement at 2.5 MPa compared with plasmid only controls. Transient, modest liver damage following treatment was assessed by transaminase assays and histology, both of which correlated with gene expression induced by acoustic cavitation. In addition, pulse-train ultrasound exposures (i.e., with relatively long quiescent periods between groups of pulses to allow tissue refill with microbubbles) produced gene expression levels comparable to the standard US exposure but reduced the extent of liver damage. These results indicated that unfocused high intensity therapeutic ultrasound exposure with microbubbles is highly promising for safe and efficient gene delivery into the liver of rats or larger animals.
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Affiliation(s)
- Shuxian Song
- Seattle Children's Research Institute, Seattle, Washington
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32
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Etame AB, Diaz RJ, Smith CA, Mainprize TG, Hynynen K, Rutka JT. Focused ultrasound disruption of the blood-brain barrier: a new frontier for therapeutic delivery in molecular neurooncology. Neurosurg Focus 2012; 32:E3. [PMID: 22208896 DOI: 10.3171/2011.10.focus11252] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Recent advances in molecular neurooncology provide unique opportunities for targeted molecular-based therapies. However, the blood-brain barrier (BBB) remains a major limitation to the delivery of tumor-specific therapies directed against aberrant signaling pathways in brain tumors. Given the dismal prognosis of patients with malignant brain tumors, novel strategies that overcome the intrinsic limitations of the BBB are therefore highly desirable. Focused ultrasound BBB disruption is emerging as a novel strategy for enhanced delivery of therapeutic agents into the brain via focal, reversible, and safe BBB disruption. This review examines the potential role and implications of focused ultrasound in molecular neurooncology.
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Affiliation(s)
- Arnold B Etame
- Division of Neurosurgery, Department of Surgery, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
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33
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Fernandez Rivas D, Cintas P, Gardeniers HJGE. Merging microfluidics and sonochemistry: towards greener and more efficient micro-sono-reactors. Chem Commun (Camb) 2012; 48:10935-47. [DOI: 10.1039/c2cc33920j] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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