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Cui Y, Han J, Li H, Ma X, Tang Y, Deng Y, Wang D, Huang D, Li J, Liu Z. Ultrasound mediated gold nanoclusters-capped gas vesicles for enhanced fluorescence imaging. Photodiagnosis Photodyn Ther 2023; 43:103737. [PMID: 37549816 DOI: 10.1016/j.pdpdt.2023.103737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/15/2023] [Accepted: 08/04/2023] [Indexed: 08/09/2023]
Abstract
The intercellular tight junction inhibits tumor imaging efficiency of nanomaterials, and enhanced cellular drug delivery with efficient detection is an important tool for tumor diagnosis. Herein, we fabricate fluorescence gold nanoclusters (Au NCs) decorated gas vesicles (GV-Au) for ultrasound (US)-mediated enhanced cellular delivery and imaging, in which GVs are living cell derived protein bubbles. GV-Au is rod-shaped sack-like structure around 230 nm, and displays improved stability and fluorescence ability compared with free Au NCs. Flow cytometry assay confirms the intracellular localization of Au NCs and GV-Au with a respective 2.20-fold enhanced cellular uptake post US treatment. Confocal images reveal the efficient cellular uptake of GV-Au under US impact, indicating that GV-Au is suitable for cellular and in vivo fluorescence imaging. Our strategy provides a new idea for efficient fluorescence imaging by penetrating cell membranes at the presence of US treatment.
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Affiliation(s)
- Yutong Cui
- School of Life Sciences, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Jiani Han
- School of Life Sciences, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Hong Li
- School of Life Sciences, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Xiang Ma
- School of Life Sciences, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Yanqiong Tang
- School of Life Sciences, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China
| | - Yong Deng
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dayong Wang
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
| | - Denggao Huang
- Department of Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou 570208, China
| | - Juanjuan Li
- School of Life Sciences, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China.
| | - Zhu Liu
- School of Life Sciences, Hainan University, Haikou 570228, China; One Health Institute, Hainan University, Haikou 570228, China.
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2
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Moradi Kashkooli F, Jakhmola A, Hornsby TK, Tavakkoli JJ, Kolios MC. Ultrasound-mediated nano drug delivery for treating cancer: Fundamental physics to future directions. J Control Release 2023; 355:552-578. [PMID: 36773959 DOI: 10.1016/j.jconrel.2023.02.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/13/2023]
Abstract
The application of biocompatible nanocarriers in medicine has provided several benefits over conventional treatment methods. However, achieving high treatment efficacy and deep penetration of nanocarriers in tumor tissue is still challenging. To address this, stimuli-responsive nano-sized drug delivery systems (DDSs) are an active area of investigation in delivering anticancer drugs. While ultrasound is mainly used for diagnostic purposes, it can also be applied to affect cellular function and the delivery/release of anticancer drugs. Therapeutic ultrasound (TUS) has shown potential as both a stand-alone anticancer treatment and a method to induce targeted drug release from nanocarrier systems. TUS approaches have been used to overcome various physiological obstacles, including endothelial barriers, the tumor microenvironment (TME), and immunological hurdles. Combining nanomedicine and ultrasound as a smart DDS can increase in situ drug delivery and improve access to impermeable tissues. Furthermore, smart DDSs can perform targeted drug release in response to distinctive TMEs, external triggers, or dual/multi-stimulus. This results in enhanced treatment efficacy and reduced damage to surrounding healthy tissue or organs at risk. Integrating DDSs and ultrasound is still in its early stages. More research and clinical trials are required to fully understand ultrasound's underlying physical mechanisms and interactions with various types of nanocarriers and different types of cells and tissues. In the present review, ultrasound-mediated nano-sized DDS, specifically focused on cancer treatment, is presented and discussed. Ultrasound interaction with nanoparticles (NPs), drug release mechanisms, and various types of ultrasound-sensitive NPs are examined. Additionally, in vitro, in vivo, and clinical applications of TUS are reviewed in light of the critical challenges that need to be considered to advance TUS toward an efficient, secure, straightforward, and accessible cancer treatment. This study also presents effective TUS parameters and safety considerations for this treatment modality and gives recommendations about system design and operation. Finally, future perspectives are considered, and different TUS approaches are examined and discussed in detail. This review investigates drug release and delivery through ultrasound-mediated nano-sized cancer treatment, both pre-clinically and clinically.
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Affiliation(s)
| | - Anshuman Jakhmola
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Tyler K Hornsby
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada
| | - Jahangir Jahan Tavakkoli
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Michael C Kolios
- Department of Physics, Toronto Metropolitan University, Toronto, Ontario, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Ontario, Canada.
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3
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Bahutair WN, Abuwatfa WH, Husseini GA. Ultrasound Triggering of Liposomal Nanodrugs for Cancer Therapy: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12173051. [PMID: 36080088 PMCID: PMC9458162 DOI: 10.3390/nano12173051] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/27/2022] [Accepted: 08/28/2022] [Indexed: 05/11/2023]
Abstract
Efficient conventional chemotherapy is limited by its nonspecific nature, which causes severe systemic toxicity that can lead to patient discomfort and low therapeutic efficacy. The emergence of smart drug delivery systems (SDDSs) utilizing nanoparticles as drug nanocarriers has shown great potential in enhancing the targetability of anticancer agents and limiting their side effects. Liposomes are among the most investigated nanoplatforms due to their promising capabilities of encapsulating hydrophilic, lipophilic, and amphiphilic drugs, biocompatibility, physicochemical and biophysical properties. Liposomal nanodrug systems have demonstrated the ability to alter drugs' biodistribution by sufficiently delivering the entrapped chemotherapeutics at the targeted diseased sites, sparing normal cells from undesired cytotoxic effects. Combining liposomal treatments with ultrasound, as an external drug release triggering modality, has been proven effective in spatially and temporally controlling and stimulating drug release. Therefore, this paper reviews recent literature pertaining to the therapeutic synergy of triggering nanodrugs from liposomes using ultrasound. It also highlights the effects of multiple physical and chemical factors on liposomes' sonosensetivity, several ultrasound-induced drug release mechanisms, and the efficacy of ultrasound-responsive liposomal systems in cancer therapy. Overall, liposomal nanodrug systems triggered by ultrasound are promising cancer therapy platforms that can potentially alleviate the detriments of conventional cancer treatments.
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Affiliation(s)
- Wafa N. Bahutair
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box. 26666, United Arab Emirates
| | - Waad H. Abuwatfa
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box. 26666, United Arab Emirates
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah P.O. Box. 26666, United Arab Emirates
| | - Ghaleb A. Husseini
- Department of Chemical Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box. 26666, United Arab Emirates
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah P.O. Box. 26666, United Arab Emirates
- Correspondence:
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4
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Fang Y, Zhang G, Bai Z, Yan Y, Song X, Zhao X, Yang P, Zhang Z. Low-intensity ultrasound: A novel technique for adjuvant treatment of gliomas. Biomed Pharmacother 2022; 153:113394. [DOI: 10.1016/j.biopha.2022.113394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/03/2022] [Accepted: 07/07/2022] [Indexed: 11/02/2022] Open
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Zhang L, Lin Z, Zeng L, Zhang F, Sun L, Sun S, Wang P, Xu M, Zhang J, Liang X, Ge H. Ultrasound-induced biophysical effects in controlled drug delivery. SCIENCE CHINA. LIFE SCIENCES 2022; 65:896-908. [PMID: 34453275 DOI: 10.1007/s11427-021-1971-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/27/2021] [Indexed: 12/30/2022]
Abstract
Ultrasound is widely used in biomedical engineering and has applications in conventional diagnosis and drug delivery. Recent advances in ultrasound-induced drug delivery have been summarized previously in several reviews that have primarily focused on the fabrication of drug delivery carriers. This review discusses the mechanisms underlying ultrasound-induced drug delivery and factors affecting delivery efficiency, including the characteristics of drug delivery carriers and ultrasound parameters. Firstly, biophysical effects induced by ultrasound, namely thermal effects, cavitation effects, and acoustic radiation forces, are illustrated. Secondly, the use of these biophysical effects to enhance drug delivery by affecting drug carriers and corresponding tissues is clarified in detail. Thirdly, recent advances in ultrasound-triggered drug delivery are detailed. Safety issues and optimization strategies to improve therapeutic outcomes and reduce side effects are summarized. Finally, current progress and future directions are discussed.
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Affiliation(s)
- Lulu Zhang
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Zhuohua Lin
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Lan Zeng
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Fan Zhang
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Lihong Sun
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Suhui Sun
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Ping Wang
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Menghong Xu
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Jinxia Zhang
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China
| | - Xiaolong Liang
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China.
| | - Huiyu Ge
- Department of Ultrasound, Peking University Third Hospital, Beijing, 100191, China.
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6
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Zhang M, Hu W, Cai C, Wu Y, Li J, Dong S. Advanced application of stimuli-responsive drug delivery system for inflammatory arthritis treatment. Mater Today Bio 2022; 14:100223. [PMID: 35243298 PMCID: PMC8881671 DOI: 10.1016/j.mtbio.2022.100223] [Citation(s) in RCA: 89] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 02/06/2023] Open
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7
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Xie S, Li G, Hou Y, Yang M, Li F, Li J, Li D, Du Y. A synergistic bactericidal effect of low-frequency and low-intensity ultrasound combined with levofloxacin-loaded PLGA nanoparticles on M. smegmatis in macrophages. J Nanobiotechnology 2020; 18:107. [PMID: 32727616 PMCID: PMC7388535 DOI: 10.1186/s12951-020-00658-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 07/08/2020] [Indexed: 02/07/2023] Open
Abstract
Purpose Tuberculosis (TB) is a highly infectious disease caused by Mycobacterium tuberculosis (Mtb), which often parasites in macrophages. This study is performed to investigate the bactericidal effect and underlying mechanisms of low-frequency and low-intensity ultrasound (LFLIU) combined with levofloxacin-loaded PLGA nanoparticles (LEV-NPs) on M. smegmatis (a surrogate of Mtb) in macrophages. Methods and results The LEV-NPs were prepared using a double emulsification method. The average diameter, zeta potential, polydispersity index, morphology, and drug release efficiency in vitro of the LEV-NPs were investigated. M. smegmatis in macrophages was treated using the LEV-NPs combined with 42 kHz ultrasound irradiation at an intensity of 0.13 W/cm2 for 10 min. The results showed that ultrasound significantly promoted the phagocytosis of nanoparticles by macrophages (P < 0.05). In addition, further ultrasound combined with the LEV-NPs promoted the production of reactive oxygen species (ROS) in macrophage, and the apoptosis rate of the macrophages was significantly higher than that of the control (P < 0.05). The transmission electronic microscope showed that the cell wall of M. smegmatis was ruptured, the cell structure was incomplete, and the bacteria received severe damage in the ultrasound combined with the LEV-NPs group. Activity assays showed that ultrasound combined with the LEV-NPs exhibited a tenfold higher antibacterial activity against M. smegmatis residing inside macrophages compared with the free drug. Conclusion These data demonstrated that ultrasound combined with LEV-NPs has great potential as a therapeutic agent for TB.![]()
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Affiliation(s)
- Shuang Xie
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.,Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Gangjing Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.,Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Yuru Hou
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.,Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Min Yang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.,Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Fahui Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.,Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Jianhu Li
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China.,Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Dairong Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, No. 1, Youyi Road, Yuzhong District, Chongqing, 400016, China.
| | - Yonghong Du
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, No. 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China. .,Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
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8
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Bourn MD, Batchelor DVB, Ingram N, McLaughlan JR, Coletta PL, Evans SD, Peyman SA. High-throughput microfluidics for evaluating microbubble enhanced delivery of cancer therapeutics in spheroid cultures. J Control Release 2020; 326:13-24. [PMID: 32562855 DOI: 10.1016/j.jconrel.2020.06.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/12/2020] [Accepted: 06/11/2020] [Indexed: 02/07/2023]
Abstract
Drug penetration into solid tumours remains a major challenge in the effective treatment of cancer. Microbubble (MB) mediated sonoporation offers a potential solution to this by enhancing the uptake of drugs into cells. Additionally, in using an ultrasound (US) trigger, drug delivery can be localised to the tumour, thus reducing the off-site toxicity associated with systemic delivery. The majority of in vitro studies involving the observation of MB-enhanced drug efficacy have been conducted on 2D monolayer cell cultures, which are known to be poor models for in vivo tumours. 3D spheroid cultures allow for the production of multicellular cultures complete with extracellular matrix (ECM) components. These cultures effectively recreate many of the physiological features of the tumour microenvironment and have been shown to be far superior to previous 2D monolayer models. However, spheroids are typically handled in well-plates in which the fluid environment is static, limiting the physiological relevance of the model. The combination of 3D cultures and microfluidics would allow for the production of a dynamic system in which spheroids are subjected to in vivo like fluid flow and shear stresses. This study presents a microfluidic device containing an array of spheroid traps, into which multiple pre-grown colorectal cancer (CRC) spheroids were loaded. Reservoirs interfaced with the chip use hydrostatic pressure to passively drive flow through the system and subject spheroids to capillary like flow velocities. The use of reservoirs also enabled multiple chips to be run in parallel, allowing for the screening of multiple therapeutic treatments (n = 690 total spheroids analysed). This microfluidic platform was used to investigate MB enhanced drug delivery and showed that co-delivery of 3 μM doxorubicin (DOX) + MB + US reduced spheroid viability to 48 ± 2%, compared to 75 ± 5% observed with 3 μM DOX alone. Delivery of drug loaded MBs (DLMBs), in which DOX-loaded liposomes (DOX-LS) were conjugated to MBs, reduced spheroid viability to 62 ± 3%, a decrease compared to the 75 ± 3% viability observed with DOX-LS in the absence of MBs + US.
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Affiliation(s)
- Matthew D Bourn
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom; Leeds Institute for Medical Research, Wellcome Trust Brenner Building, St James' University Hospital, Leeds LS9 7TF, United Kingdom
| | - Damien V B Batchelor
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Nicola Ingram
- Leeds Institute for Medical Research, Wellcome Trust Brenner Building, St James' University Hospital, Leeds LS9 7TF, United Kingdom
| | - James R McLaughlan
- Leeds Institute for Medical Research, Wellcome Trust Brenner Building, St James' University Hospital, Leeds LS9 7TF, United Kingdom; School of Electronic and Electrical Engineering, University of Leeds, LS2 9JT, United Kingdom
| | - P Louise Coletta
- Leeds Institute for Medical Research, Wellcome Trust Brenner Building, St James' University Hospital, Leeds LS9 7TF, United Kingdom
| | - Stephen D Evans
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom
| | - Sally A Peyman
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, United Kingdom; Leeds Institute for Medical Research, Wellcome Trust Brenner Building, St James' University Hospital, Leeds LS9 7TF, United Kingdom.
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9
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Han H, Kim D, Jang Y, Seo M, Kim K, Lee JB, Kim H. Focused ultrasound-triggered chemo-gene therapy with multifunctional nanocomplex for enhancing therapeutic efficacy. J Control Release 2020; 322:346-356. [DOI: 10.1016/j.jconrel.2020.03.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/08/2020] [Accepted: 03/25/2020] [Indexed: 12/17/2022]
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10
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Mérida F, Rinaldi C, Juan EJ, Torres-Lugo M. In vitro Ultrasonic Potentiation of 2-Phenylethynesulfonamide/Magnetic Fluid Hyperthermia Combination Treatments for Ovarian Cancer. Int J Nanomedicine 2020; 15:419-432. [PMID: 32021188 PMCID: PMC6982443 DOI: 10.2147/ijn.s217870] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/25/2019] [Indexed: 01/15/2023] Open
Abstract
Background Magnetic Fluid Hyperthermia (MFH) is a promising adjuvant for chemotherapy, potentiating the action of anticancer agents. However, drug delivery to cancer cells must be optimized to improve the overall therapeutic effect of drug/MFH combination treatments. Purpose The aim of this work was to demonstrate the potentiation of 2-phenylethynesulfonamide (PES) at various combination treatments with MFH, using low-intensity ultrasound as an intracellular delivery enhancer. Methods The effect of ultrasound (US), MFH, and PES was first evaluated individually and then as combination treatments. Definity® microbubbles and polyethylene glycol (PEG)-coated iron oxide nanoparticles were used to induce cell sonoporation and MFH, respectively. Assessment of cell membrane permeabilization was evaluated via fluorescence microscopy, iron uptake by cells was quantified by UV-Vis spectroscopy, and cell viability was determined using automatic cell counting. Results Notable reductions in cancer cell viability were observed when ultrasound was incorporated. For example, the treatment US+PES reduced cell viability by 37% compared to the non-toxic effect of the drug. Similarly, the treatment US+MFH using mild hyperthermia (41°C), reduced cell viability by an additional 18% when compared to the effect of MH alone. Significant improvements were observed for the combination of US+PES+MFH with cell viability reduced by an additional 26% compared to the PES+MFH group. The improved cytotoxicity was attributed to enhanced drug/nanoparticle intracellular delivery, with iron uptake values nearly twice those achieved without ultrasound. Various treatment schedules were examined, and all of them showed substantial cell death, indicating that the time elapsed between sonoporation and magnetic field exposure was not significant. Conclusion Superior cancer cell-killing patterns took place when ultrasound was incorporated thus demonstrating the in vitro ultrasonic potentiation of PES and mild MFH. This work demonstrated that ultrasound is a promising non-invasive enhancer of PES/MFH combination treatments, aiming to establish a sono-thermo-chemotherapy in the treatment of ovarian cancer.
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Affiliation(s)
- Fernando Mérida
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez, Mayagüez, Puerto Rico
| | - Carlos Rinaldi
- Department of Chemical Engineering, University of Florida, Gainesville, FL, USA.,J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Eduardo J Juan
- Department of Electrical and Computer Engineering, University of Puerto Rico-Mayagüez, Mayagüez, Puerto Rico
| | - Madeline Torres-Lugo
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez, Mayagüez, Puerto Rico
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11
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Fant C, Lafond M, Rogez B, Castellanos IS, Ngo J, Mestas JL, Padilla F, Lafon C. In vitro potentiation of doxorubicin by unseeded controlled non-inertial ultrasound cavitation. Sci Rep 2019; 9:15581. [PMID: 31666639 PMCID: PMC6821732 DOI: 10.1038/s41598-019-51785-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 10/07/2019] [Indexed: 12/20/2022] Open
Abstract
Ultrasound-generated non-inertial cavitation has the ability to potentiate the therapeutic effects of cytotoxic drugs. We report a novel strategy to induce and regulate unseeded (without nucleation agents) non-inertial cavitation, where cavitation is initiated, monitored and regulated using a confocal ultrasound setup controlled by an instrumentation platform and a PC programmed feedback control loop. We demonstrate, using 4T1 murine mammary carcinoma as model cell line, that unseeded non-inertial cavitation potentiates the cytotoxicity of doxorubicin, one of the most potent drugs used in the treatment of solid tumors including breast cancer. Combined treatment with doxorubicin and unseeded non-inertial cavitation significantly reduced cell viability and proliferation at 72 h. A mechanistic study of the potential mechanisms of action of the combined treatment identified the presence of cavitation as required to enhance doxorubicin efficacy, but ruled out the influence of changes in doxorubicin uptake, temperature increase, hydroxyl radical production and nuclear membrane modifications on the treatment outcome. The developed strategy for the reproducible generation and maintenance of unseeded cavitation makes it an attractive method as potential preclinical and clinical treatment modality to locally potentiate doxorubicin.
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Affiliation(s)
- Cécile Fant
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, F-69003, Lyon, France
| | - Maxime Lafond
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, F-69003, Lyon, France
- Department of Internal Medicine, University of Cincinnati, 2600 Clifton Ave, Cincinnati, OH, 45220, USA
| | - Bernadette Rogez
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, F-69003, Lyon, France
- University of Lille, building SN3, INSERM U908 "Cell plasticity and Cancer", 59655, Villeneuve d'Ascq, France
- OCR (Oncovet Clinical Research), Parc Eurasanté, Lille Métropole, 80 rue Docteur Yersin, 59120, Loos, France
| | | | - Jacqueline Ngo
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, F-69003, Lyon, France
| | - Jean-Louis Mestas
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, F-69003, Lyon, France
| | - Frédéric Padilla
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, F-69003, Lyon, France.
- Department of Radiation Oncology, University of Virginia School of Medicine, Charlottesville, VA, USA.
- Focused Ultrasound Foundation, 1230 Cedars Court, Suite 206, Charlottesville, VA, USA.
| | - Cyril Lafon
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, F-69003, Lyon, France
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12
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Roovers S, Segers T, Lajoinie G, Deprez J, Versluis M, De Smedt SC, Lentacker I. The Role of Ultrasound-Driven Microbubble Dynamics in Drug Delivery: From Microbubble Fundamentals to Clinical Translation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10173-10191. [PMID: 30653325 DOI: 10.1021/acs.langmuir.8b03779] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In the last couple of decades, ultrasound-driven microbubbles have proven excellent candidates for local drug delivery applications. Besides being useful drug carriers, microbubbles have demonstrated the ability to enhance cell and tissue permeability and, as a consequence, drug uptake herein. Notwithstanding the large amount of evidence for their therapeutic efficacy, open issues remain. Because of the vast number of ultrasound- and microbubble-related parameters that can be altered and the variability in different models, the translation from basic research to (pre)clinical studies has been hindered. This review aims at connecting the knowledge gained from fundamental microbubble studies to the therapeutic efficacy seen in in vitro and in vivo studies, with an emphasis on a better understanding of the response of a microbubble upon exposure to ultrasound and its interaction with cells and tissues. More specifically, we address the acoustic settings and microbubble-related parameters (i.e., bubble size and physicochemistry of the bubble shell) that play a key role in microbubble-cell interactions and in the associated therapeutic outcome. Additionally, new techniques that may provide additional control over the treatment, such as monodisperse microbubble formulations, tunable ultrasound scanners, and cavitation detection techniques, are discussed. An in-depth understanding of the aspects presented in this work could eventually lead the way to more efficient and tailored microbubble-assisted ultrasound therapy in the future.
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Affiliation(s)
- Silke Roovers
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent Research Group on Nanomedicine, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent , Belgium
| | - Tim Segers
- Physics of Fluids Group, MESA+ Institute for Nanotechnology and Technical Medical (TechMed) Center , University of Twente , P.O. Box 217, 7500 AE Enschede , The Netherlands
| | - Guillaume Lajoinie
- Physics of Fluids Group, MESA+ Institute for Nanotechnology and Technical Medical (TechMed) Center , University of Twente , P.O. Box 217, 7500 AE Enschede , The Netherlands
| | - Joke Deprez
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent Research Group on Nanomedicine, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent , Belgium
| | - Michel Versluis
- Physics of Fluids Group, MESA+ Institute for Nanotechnology and Technical Medical (TechMed) Center , University of Twente , P.O. Box 217, 7500 AE Enschede , The Netherlands
| | - Stefaan C De Smedt
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent Research Group on Nanomedicine, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent , Belgium
| | - Ine Lentacker
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent Research Group on Nanomedicine, Faculty of Pharmaceutical Sciences , Ghent University , Ottergemsesteenweg 460 , Ghent , Belgium
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van Ballegooie C, Man A, Win M, Yapp DT. Spatially Specific Liposomal Cancer Therapy Triggered by Clinical External Sources of Energy. Pharmaceutics 2019; 11:E125. [PMID: 30884786 PMCID: PMC6470770 DOI: 10.3390/pharmaceutics11030125] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 11/25/2022] Open
Abstract
This review explores the use of energy sources, including ultrasound, magnetic fields, and external beam radiation, to trigger the delivery of drugs from liposomes in a tumor in a spatially-specific manner. Each section explores the mechanism(s) of drug release that can be achieved using liposomes in conjunction with the external trigger. Subsequently, the treatment's formulation factors are discussed, highlighting the parameters of both the therapy and the medical device. Additionally, the pre-clinical and clinical trials of each triggered release method are explored. Lastly, the advantages and disadvantages, as well as the feasibility and future outlook of each triggered release method, are discussed.
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Affiliation(s)
- Courtney van Ballegooie
- Experimental Therapeutics, BC Cancer, Vancouver, BC V5Z 1L3, Canada.
- Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
| | - Alice Man
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
| | - Mi Win
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.
| | - Donald T Yapp
- Experimental Therapeutics, BC Cancer, Vancouver, BC V5Z 1L3, Canada.
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
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Abstract
Treatment of certain central nervous system disorders, including different types of cerebral malignancies, is limited by traditional oral or systemic administrations of therapeutic drugs due to possible serious side effects and/or lack of the brain penetration and, therefore, the efficacy of the drugs is diminished. During the last decade, several new technologies were developed to overcome barrier properties of cerebral capillaries. This review gives a short overview of the structural elements and anatomical features of the blood–brain barrier. The various in vitro (static and dynamic), in vivo (microdialysis), and in situ (brain perfusion) blood–brain barrier models are also presented. The drug formulations and administration options to deliver molecules effectively to the central nervous system (CNS) are presented. Nanocarriers, nanoparticles (lipid, polymeric, magnetic, gold, and carbon based nanoparticles, dendrimers, etc.), viral and peptid vectors and shuttles, sonoporation and microbubbles are briefly shown. The modulation of receptors and efflux transporters in the cell membrane can also be an effective approach to enhance brain exposure to therapeutic compounds. Intranasal administration is a noninvasive delivery route to bypass the blood–brain barrier, while direct brain administration is an invasive mode to target the brain region with therapeutic drug concentrations locally. Nowadays, both technological and mechanistic tools are available to assist in overcoming the blood–brain barrier. With these techniques more effective and even safer drugs can be developed for the treatment of devastating brain disorders.
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15
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Hou Y, Yang M, Jiang H, Li D, Du Y. Effects of low-intensity and low-frequency ultrasound combined with tobramycin on biofilms of extended-spectrum beta-lactamases (ESBLs) Escherichia coli. FEMS Microbiol Lett 2019; 366:5304977. [DOI: 10.1093/femsle/fnz026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 01/30/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Yuru Hou
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally Invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Min Yang
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally Invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Hexun Jiang
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally Invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040, China
| | - Dairong Li
- Department of Respiratory Disease, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yonghong Du
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally Invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
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16
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Snipstad S, Sulheim E, de Lange Davies C, Moonen C, Storm G, Kiessling F, Schmid R, Lammers T. Sonopermeation to improve drug delivery to tumors: from fundamental understanding to clinical translation. Expert Opin Drug Deliv 2018; 15:1249-1261. [PMID: 30415585 DOI: 10.1080/17425247.2018.1547279] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Ultrasound in combination with microbubbles can make cells and tissues more accessible for drugs, thereby achieving improved therapeutic outcomes. In this review, we introduce the term 'sonopermeation', covering mechanisms such as pore formation (traditional sonoporation), as well as the opening of intercellular junctions, stimulated endocytosis/transcytosis, improved blood vessel perfusion and changes in the (tumor) microenvironment. Sonopermeation has gained a lot of interest in recent years, especially for delivering drugs through the otherwise impermeable blood-brain barrier, but also to tumors. AREAS COVERED In this review, we summarize various in vitro assays and in vivo setups that have been employed to unravel the fundamental mechanisms involved in ultrasound-enhanced drug delivery, as well as clinical trials that are ongoing in patients with brain, pancreatic, liver and breast cancer. We summarize the basic principles of sonopermeation, describe recent findings obtained in (pre-) clinical trials, and discuss future directions. EXPERT OPINION We suggest that an improved mechanistic understanding, and microbubbles and ultrasound equipment specialized for drug delivery (and not for imaging) are key aspects to create more effective treatment regimens by sonopermeation. Real-time feedback and tools to predict therapeutic outcome and which tumors/patients will benefit from sonopermeation-based interventions will be important to promote clinical translation.
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Affiliation(s)
- Sofie Snipstad
- a Department of Physics , Norwegian University of Science and Technology (NTNU) , Trondheim , Norway.,b Department of Biotechnology and Nanomedicine , SINTEF AS , Trondheim , Norway.,c Cancer Clinic , St. Olavs Hospital , Trondheim , Norway
| | - Einar Sulheim
- a Department of Physics , Norwegian University of Science and Technology (NTNU) , Trondheim , Norway.,b Department of Biotechnology and Nanomedicine , SINTEF AS , Trondheim , Norway.,c Cancer Clinic , St. Olavs Hospital , Trondheim , Norway
| | - Catharina de Lange Davies
- a Department of Physics , Norwegian University of Science and Technology (NTNU) , Trondheim , Norway
| | - Chrit Moonen
- d Imaging Division , University Medical Center , Utrecht , The Netherlands
| | - Gert Storm
- e Department of Pharmaceutics , Utrecht University , Utrecht , The Netherlands.,f Department of Targeted Therapeutics , University of Twente , Enschede , The Netherlands
| | - Fabian Kiessling
- g Institute for Experimental Molecular Imaging , RWTH Aachen University , Aachen , Germany
| | - Ruth Schmid
- b Department of Biotechnology and Nanomedicine , SINTEF AS , Trondheim , Norway
| | - Twan Lammers
- e Department of Pharmaceutics , Utrecht University , Utrecht , The Netherlands.,f Department of Targeted Therapeutics , University of Twente , Enschede , The Netherlands.,g Institute for Experimental Molecular Imaging , RWTH Aachen University , Aachen , Germany
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17
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Skachkov I, Luan Y, van Tiel ST, van der Steen AFW, de Jong N, Bernsen MR, Kooiman K. SPIO labeling of endothelial cells using ultrasound and targeted microbubbles at diagnostic pressures. PLoS One 2018; 13:e0204354. [PMID: 30235336 PMCID: PMC6147550 DOI: 10.1371/journal.pone.0204354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023] Open
Abstract
In vivo cell tracking of therapeutic, tumor, and endothelial cells is an emerging field and a promising technique for imaging cardiovascular disease and cancer development. Site-specific labeling of endothelial cells with the MRI contrast agent superparamagnetic iron oxide (SPIO) in the absence of toxic agents is challenging. Therefore, the aim of this in vitro study was to find optimal parameters for efficient and safe SPIO-labeling of endothelial cells using ultrasound-activated CD31-targeted microbubbles for future MRI tracking. Ultrasound at a frequency of 1 MHz (10,000 cycles, repetition rate of 20 Hz) was used for varying applied peak negative pressures (10–160 kPa, i.e. low mechanical index (MI) of 0.01–0.16), treatment durations (0–30 s), time of SPIO addition (-5 min– 15 min with respect to the start of the ultrasound), and incubation time after SPIO addition (5 min– 3 h). Iron specific Prussian Blue staining in combination with calcein-AM based cell viability assays were applied to define the most efficient and safe conditions for SPIO-labeling. Optimal SPIO labeling was observed when the ultrasound parameters were 40 kPa peak negative pressure (MI 0.04), applied for 30 s just before SPIO addition (0 min). Compared to the control, this resulted in an approximate 12 times increase of SPIO uptake in endothelial cells in vitro with 85% cell viability. Therefore, ultrasound-activated targeted ultrasound contrast agents show great potential for effective and safe labeling of endothelial cells with SPIO.
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Affiliation(s)
- Ilya Skachkov
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, Rotterdam, the Netherlands
| | - Ying Luan
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, Rotterdam, the Netherlands
| | - Sandra T. van Tiel
- Department of Radiology & Nucleair Medicine, Erasmus MC, Rotterdam, the Netherlands
| | - Antonius F. W. van der Steen
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, Rotterdam, the Netherlands
- Laboratory of Acoustical Wavefield Imaging, Faculty of Applied Sciences, Delft University of Technology, Delft, the Netherlands
| | - Nico de Jong
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, Rotterdam, the Netherlands
- Laboratory of Acoustical Wavefield Imaging, Faculty of Applied Sciences, Delft University of Technology, Delft, the Netherlands
| | - Monique R. Bernsen
- Department of Radiology & Nucleair Medicine, Erasmus MC, Rotterdam, the Netherlands
| | - Klazina Kooiman
- Department of Biomedical Engineering, Thoraxcenter, Erasmus MC, Rotterdam, the Netherlands
- * E-mail:
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Song L, Wang X, Zhang W, Ye L, Feng X. Low-intensity ultrasound promotes the horizontal transfer of resistance genes mediated by plasmids in E. coli. 3 Biotech 2018; 8:224. [PMID: 29692961 DOI: 10.1007/s13205-018-1247-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 04/11/2018] [Indexed: 10/17/2022] Open
Abstract
Widespread of pathogenic bacteria resistant to antibiotics has become a worldwide public health concern. Conjugative transfer between bacteria is an important mechanism for the horizontal transfer of antibiotic resistance genes. Ultrasound has been widely applied in many fields, but the effect of ultrasound on horizontal transfer of antibiotic-resistant genes is still not clear. We discovered that low-intensity (≤ 0.05 W/cm2) ultrasound had no effect on bacterial growth and survival rates, but increased the permeability of cell membrane, and consequentially elevated the transfer rates of plasmid. Low-intensity ultrasound enhanced conjugation between bacteria, induced expression of conjugation genes TrpBp and TrfAp, and inhibited expression of global regulatory genes KorA, KorB, TrbA, and TrbK. In conclusion, low-intensity ultrasound promoted horizontal transfer of antibiotic-resistant genes by enhancing conjugation and regulating expression of horizontal transfer-related genes.
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19
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Wu M, Xiong H, Zou H, Li M, Li P, Zhou Y, Xu Y, Jian J, Liu F, Zhao H, Wang Z, Zhou X. A laser-activated multifunctional targeted nanoagent for imaging and gene therapy in a mouse xenograft model with retinoblastoma Y79 cells. Acta Biomater 2018; 70:211-226. [PMID: 29452275 DOI: 10.1016/j.actbio.2018.02.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/24/2018] [Accepted: 02/06/2018] [Indexed: 01/08/2023]
Abstract
Retinoblastoma (RB) is the most common intraocular malignancy of childhood that urgently needs early detection and effective therapy methods. The use of nanosized gene delivery systems is appealing because of their highly adjustable structure to carry both therapeutic and imaging agents. Herein, we report a folic acid (FA)-modified phase-changeable cationic nanoparticle encapsulating liquid perfluoropentane (PFP) and indocyanine green (ICG) (FA-CN-PFP-ICG, FCNPI) with good plasmid DNA (pDNA) carrying capacity, favorable biocompatibility, excellent photoacoustic (PA) and ultrasound (US) contrast, enhanced gene transfection efficiency and therapeutic effect. The liquid-gas phase transition of the FCNPI upon laser irradiation has provided splendid contrasts for US/PA dual-modality imaging in vitro as well as in vivo. More importantly, laser-mediated gene transfection with targeted cationic FCNPI nanoparticles demonstrated the best therapeutic effect compared with untargeted cationic nanoparticle (CN-PFP-ICG, CNPI) and neutral nanoparticle (NN-PFP-ICG, NNPI), both in vitro and in vivo. Such a multifunctional nanoagent is expected to combine dual-mode guided imaging with fewer side effects and proper therapeutic efficacy. These results establish an experimental foundation for the clinical detection of and therapy for RB. STATEMENT OF SIGNIFICANCE We successfully constructed a multifunctional targeted cationic nanoparticle (FCNPI) and meticulously compared the variations in the plasmid loading capacity and binding to Y79 cells with NNPI, CNPI, and FCNPI. FCNPI exhibited favorable plasmid loading capability, splendid ability for targeting and only it could provide optimal US and PA contrast to background during a considerable long time. The FCNPI/pDNA + Laser system also exhibited the best therapeutic effect in vivo; this finding proposes a potential strategy for the evaluation of an efficient gene delivery nanocarrier for gene targeting therapy of RB tumor. Our study showed that there are great advantages of targeting FCNPI to provide PA/US imaging and to enlighten laser-mediated gene transfection. FCNPI is a very helpful multifunctional agent with potential.
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Abstract
Ultrasound is a rapidly advancing field with many emerging diagnostic and therapeutic applications. For diagnostics, new vascular targets are routinely identified and mature technologies are being translated to humans, while other recent innovations may bring about the creation of acoustic reporter genes and micron-scale resolution with ultrasound. As a cancer therapy, ultrasound is being explored as an adjuvant to immune therapies and to deliver acoustically or thermally active drugs to tumor regions. Ultrasound-enhanced delivery across the blood brain barrier (BBB) could potentially be very impactful for brain cancers and neurodegenerative diseases where the BBB often impedes the delivery of therapeutic molecules. In this minireview, we provide an overview of these topics in the field of ultrasound that are especially relevant to the interests of World Molecular Imaging Society.
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21
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Sasaki N, Ishi K, Kudo N, Nakayama SMM, Nakamura K, Morishita K, Ohta H, Ishizuka M, Takiguchi M. Spatial and temporal profile of cisplatin delivery by ultrasound-assisted intravesical chemotherapy in a bladder cancer model. PLoS One 2017; 12:e0188093. [PMID: 29190688 PMCID: PMC5708802 DOI: 10.1371/journal.pone.0188093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 10/31/2017] [Indexed: 01/13/2023] Open
Abstract
Non-muscle invasive bladder cancer is one of the most common tumors of the urinary tract. Despite the current multimodal therapy, recurrence and progression of disease have been challenging problems. We hereby introduced a new approach, ultrasound-assisted intravesical chemotherapy, intravesical instillation of chemotherapeutic agents and microbubbles followed by ultrasound exposure. We investigated the feasibility of the treatment for non-muscle invasive bladder cancer. In order to evaluate intracellular delivery and cytotoxic effect as a function to the thickness, we performed all experiments using a bladder cancer mimicking 3D culture model. Ultrasound-triggered microbubble cavitation increased both the intracellular platinum concentration and the cytotoxic effect of cisplatin at the thickness of 70 and 122 μm of the culture model. The duration of enhanced cytotoxic effect of cisplatin by ultrasound-triggered microbubble cavitation was approximately 1 hr. Based on the distance and duration of delivery, we further tested the feasibility of repetition of the treatment. Triple treatment increased the effective distance by 1.6-fold. Our results clearly showed spatial and temporal profile of delivery by ultrasound-triggered microbubble cavitation in a tumor-mimicking structure. Furthermore, we demonstrated that the increase in intracellular concentration results in the enhancement of the cytotoxic effect in a structure with the certain thickness. Repetition of ultrasound exposure would be treatment of choice in future clinical application. Our results suggest ultrasound-triggered microbubble cavitation can be repeatable and is promising for the local control of non-muscle invasive bladder cancer.
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Affiliation(s)
- Noboru Sasaki
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Kazuhiro Ishi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Nobuki Kudo
- Division of Bioengineering and Bioinformatics, Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan
| | - Shouta M. M. Nakayama
- Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Kensuke Nakamura
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Keitaro Morishita
- Veterinary Teaching Hospital, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Hiroshi Ohta
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Mayumi Ishizuka
- Department of Environmental Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Mitsuyoshi Takiguchi
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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22
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Browning RJ, Reardon PJT, Parhizkar M, Pedley RB, Edirisinghe M, Knowles JC, Stride E. Drug Delivery Strategies for Platinum-Based Chemotherapy. ACS NANO 2017; 11:8560-8578. [PMID: 28829568 DOI: 10.1021/acsnano.7b04092] [Citation(s) in RCA: 150] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Few chemotherapeutics have had such an impact on cancer management as cis-diamminedichloridoplatinum(II) (CDDP), also known as cisplatin. The first member of the platinum-based drug family, CDDP's potent toxicity in disrupting DNA replication has led to its widespread use in multidrug therapies, with particular benefit in patients with testicular cancers. However, CDDP also produces significant side effects that limit the maximum systemic dose. Various strategies have been developed to address this challenge including encapsulation within micro- or nanocarriers and the use of external stimuli such as ultrasound to promote uptake and release. The aim of this review is to look at these strategies and recent scientific and clinical developments.
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Affiliation(s)
- Richard J Browning
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford , Oxford OX1 2JD, United Kingdom
| | | | | | | | | | - Jonathan C Knowles
- Department of Nanobiomedical Science and BK21 Plus NBM, Global Research Center for Regenerative Medicine, Dankook University , 518-10 Anseo-dong, Dongnam-gu, Cheonan, Chungcheongnam-do, Republic of Korea
- The Discoveries Centre for Regenerative and Precision Medicine, UCL Campus , Gower Street, London WC1E 6BT, United Kingdom
| | - Eleanor Stride
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford , Oxford OX1 2JD, United Kingdom
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23
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Dong Y, Su H, Jiang H, Zheng H, Du Y, Wu J, Li D. Experimental study on the influence of low-frequency and low-intensity ultrasound on the permeability of the Mycobacterium smegmatis cytoderm and potentiation with levofloxacin. ULTRASONICS SONOCHEMISTRY 2017; 37:1-8. [PMID: 28427611 DOI: 10.1016/j.ultsonch.2016.12.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 12/12/2016] [Accepted: 12/18/2016] [Indexed: 06/07/2023]
Abstract
Tuberculosis is an infectious disease caused by the bacterium M. tuberculosis. The aim of this study was to investigate the bactericidal effect and underlying mechanisms of low-frequency and low-intensity ultrasound combined with levofloxacin treatment against M. smegmatis (a surrogate of M. tuberculosis). As part of this study, M. smegmatis was continuously irradiated with low frequency ultrasound (42kHz) using several different doses whereby both intensity (0.138, 0.190 and 0.329W/cm2) and exposure time (5, 15 and 20min) were varied. Flow cytometric analyses revealed that the permeability of M. smegmatis increased following ultrasound exposure. The survival rate, structure and morphology of bacteria in the lower-dose (ISATA=0.138W/cm2 for 5min) ultrasound group displayed no significant differences upon comparison with the untreated group. However, the survival rate of bacteria was significantly reduced and the bacterial structure was damaged in the higher-dose (ISATA=0.329W/cm2 for 20min) ultrasound group. Ultrasound irradiation (0.138W/cm2) was subsequently applied to M. smegmatis in combination with levofloxacin treatment for 5min. The results demonstrated that the bactericidal effect of ultrasonic irradiation combined with levofloxacin is higher compared to ultrasound alone or levofloxacin alone.
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Affiliation(s)
- Yu Dong
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally-invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Hang Su
- Food and Drug Administration of Huiji, Zhengzhou 450044, China
| | - Hexun Jiang
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally-invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Huimin Zheng
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally-invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Yonghong Du
- State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, Chongqing Collaborative Innovation Center for Minimally-invasive and Noninvasive Medicine, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Junru Wu
- Department of Physics, University of Vermont, Burlington, VT 05405, USA
| | - Dairong Li
- Department of Respiratory Disease, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Hirschberg H, Madsen SJ. Synergistic efficacy of ultrasound, sonosensitizers and chemotherapy: a review. Ther Deliv 2017; 8:331-342. [PMID: 28361613 PMCID: PMC6367792 DOI: 10.4155/tde-2016-0080] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/03/2017] [Indexed: 12/13/2022] Open
Abstract
Chemotherapeutic agents, either in the form of systemically injected free drug or encapsulated in nanoparticles transport vehicles, must overcome three main obstacles prior to reaching and interacting with their intended target inside tumor cells. Drugs must leave the circulation, overcome the tissue-tumor barrier and penetrate the cell's plasma membrane. Since, many agents enter the cell by endocytosis, they must avoid entrapment and degradation by the intracellular endolysosome complex. Ultrasound has demonstrated potential to enhance the efficacy of chemotherapy by reducing these barriers. The purpose of this review is to highlight the potential of ultrasound in combination with sonosensitizers to enhance the efficacy of chemotherapy by optimizing the anticancer agent's intracellular ability to engage and interact with its target.
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Affiliation(s)
- Henry Hirschberg
- Beckman Laser Institute & Medical Clinic, University of California, Irvine, CA 92612, USA
- Department of Health Physics & Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, USA
| | - Steen J Madsen
- Department of Health Physics & Diagnostic Sciences, University of Nevada, Las Vegas, NV 89154, USA
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25
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Li Y, Wang P, Chen X, Hu J, Liu Y, Wang X, Liu Q. Activation of microbubbles by low-intensity pulsed ultrasound enhances the cytotoxicity of curcumin involving apoptosis induction and cell motility inhibition in human breast cancer MDA-MB-231 cells. ULTRASONICS SONOCHEMISTRY 2016; 33:26-36. [PMID: 27245953 DOI: 10.1016/j.ultsonch.2016.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 04/06/2016] [Accepted: 04/10/2016] [Indexed: 05/15/2023]
Abstract
Ultrasound and microbubbles-mediated drug delivery has become a promising strategy to promote drug delivery and its therapeutic efficacy. The aim of this research was to assess the effects of microbubbles (MBs)-combined low-intensity pulsed ultrasound (LPUS) on the delivery and cytotoxicity of curcumin (Cur) to human breast cancer MDA-MB-231 cells. Under the experimental condition, MBs raised the level of acoustic cavitation and enhanced plasma membrane permeability; and cellular uptake of Cur was notably improved by LPUS-MBs treatment, aggravating Cur-induced MDA-MB-231 cells death. The combined treatment markedly caused more obvious changes of cell morphology, F-actin cytoskeleton damage and cell migration inhibition. Our results demonstrated that combination of MBs and LPUS may be an efficient strategy for improving anti-tumor effect of Cur, suggesting a potential effective method for antineoplastic therapy.
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Affiliation(s)
- Yixiang Li
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, China
| | - Pan Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, China
| | - Xiyang Chen
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, China
| | - Jianmin Hu
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, China
| | - Yichen Liu
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, China
| | - Xiaobing Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, China.
| | - Quanhong Liu
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, China.
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van Rooij T, Skachkov I, Beekers I, Lattwein KR, Voorneveld JD, Kokhuis TJ, Bera D, Luan Y, van der Steen AF, de Jong N, Kooiman K. Viability of endothelial cells after ultrasound-mediated sonoporation: Influence of targeting, oscillation, and displacement of microbubbles. J Control Release 2016; 238:197-211. [DOI: 10.1016/j.jconrel.2016.07.037] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 07/20/2016] [Accepted: 07/24/2016] [Indexed: 10/21/2022]
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Gonzales J, Nair RK, Madsen SJ, Krasieva T, Hirschberg H. Focused ultrasound-mediated sonochemical internalization: an alternative to light-based therapies. JOURNAL OF BIOMEDICAL OPTICS 2016; 21:78002. [PMID: 27448101 PMCID: PMC5996869 DOI: 10.1117/1.jbo.21.7.078002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 07/07/2016] [Indexed: 05/10/2023]
Abstract
Activation of sonosensitizers via focused ultrasound (FUS), i.e., sonodynamic therapy has been proposed as an extension to light-activated photodynamic therapy for the treatment of brain as well as other tumors. The use of FUS, as opposed to light, allows treatment to tumor sites buried deep within tissues as well as through the intact skull. We have examined ultrasonic activation of sonosensitizers together with the anticancer agent bleomycin (BLM), i.e., sonochemical internalization (SCI). SCI is a technique that utilizes FUS for the enhanced delivery of endo-lysosomal trapped macromolecules into the cell cytoplasm in a similar manner to light-based photochemical internalization. The released agent can, therefore, exert its full biological activity, in contrast to being degraded by lysosomal hydrolases. Our results indicate that, compared to drug or FUS treatment alone, FUS activation of the sonosensitizer AlPcS2a together with BLM significantly inhibits the ability of treated glioma cells to grow as three-dimensional tumor spheroids in vitro.
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Affiliation(s)
- Jonathan Gonzales
- University of California, Beckman Laser Institute, 1002 Health Sciences Road, Irvine, California 92612, United States
| | - Rohit Kumar Nair
- University of California, Beckman Laser Institute, 1002 Health Sciences Road, Irvine, California 92612, United States
| | - Steen J. Madsen
- University of Nevada, Department of Health Physics, 4505 South Maryland Parkway, Box 453037, Las Vegas, Nevada 89154, United States
| | - Tatiana Krasieva
- University of California, Beckman Laser Institute, 1002 Health Sciences Road, Irvine, California 92612, United States
| | - Henry Hirschberg
- University of California, Beckman Laser Institute, 1002 Health Sciences Road, Irvine, California 92612, United States
- University of Nevada, Department of Health Physics, 4505 South Maryland Parkway, Box 453037, Las Vegas, Nevada 89154, United States
- Address all correspondence to: Henry Hirschberg, E-mail:
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Prieur F, Pillon A, Mestas JL, Cartron V, Cèbe P, Chansard N, Lafond M, Lafon C. Enhancement of Fluorescent Probe Penetration into Tumors In Vivo Using Unseeded Inertial Cavitation. ULTRASOUND IN MEDICINE & BIOLOGY 2016; 42:1706-1713. [PMID: 27087691 DOI: 10.1016/j.ultrasmedbio.2016.01.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 01/18/2016] [Accepted: 01/27/2016] [Indexed: 06/05/2023]
Abstract
Ultrasound-induced cavitation has found many applications in the field of cancer therapy. One of its beneficial effects is the enhancement of drug intake by tumor cells. Our group has developed a device that can create and control unseeded cavitation in tissue using ultrasound. We conducted experiments on tumor-bearing mice using our device to assess the impact of sonication on the penetration of fluorescent probes into tumor cells. We studied the influence of pressure level, timing of sonication and sonication duration on treatment efficiency. Our results indicate that fluorescent probes penetrate better into tumors exposed to ultrasound. The best results revealed an increase in penetration of 61% and were obtained when sonicating the tumor in presence of the probes with a peak negative pressure at focus of 19 MPa. At this pressure level, the treatment generated only minor skin damage. Treatments could be significantly accelerated as equivalent enhanced penetration of probes was achieved when multiplying the initial raster scan speed by a factor of four.
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Affiliation(s)
- Fabrice Prieur
- Inserm, U1032, LabTau, Lyon, France; Université de Lyon, Lyon, France.
| | - Arnaud Pillon
- Centre de Recherche en Oncologie Expérimentale, Institut de Recherche Pierre Fabre, Toulouse, France
| | - Jean-Louis Mestas
- Inserm, U1032, LabTau, Lyon, France; Université de Lyon, Lyon, France; Caviskills SAS, Vaulx-en-Velin, France
| | - Valérie Cartron
- Centre de Recherche en Oncologie Expérimentale, Institut de Recherche Pierre Fabre, Toulouse, France
| | - Patrick Cèbe
- Centre de Recherche en Oncologie Expérimentale, Institut de Recherche Pierre Fabre, Toulouse, France
| | - Nathalie Chansard
- Centre de Recherche en Oncologie Expérimentale, Institut de Recherche Pierre Fabre, Toulouse, France
| | - Maxime Lafond
- Inserm, U1032, LabTau, Lyon, France; Université de Lyon, Lyon, France
| | - Cyril Lafon
- Inserm, U1032, LabTau, Lyon, France; Université de Lyon, Lyon, France; Caviskills SAS, Vaulx-en-Velin, France
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Aw MS, Paniwnyk L, Losic D. The progressive role of acoustic cavitation for non-invasive therapies, contrast imaging and blood-tumor permeability enhancement. Expert Opin Drug Deliv 2016; 13:1383-96. [PMID: 27195384 DOI: 10.1080/17425247.2016.1192123] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
INTRODUCTION Drug delivery pertaining to acoustic cavitation generated from ultrasonic (US) irradiation is advantageous for devising smarter and more advanced therapeutics. The aim is to showcase microbubbles as drug carriers and robust theranostic for non-invasive therapies across diverse biomedical disciplines, highlighting recent technologies in this field for overcoming the blood-brain barrier (BBB) to treat cancers and neurological disorders. AREAS COVERED This article reviews work on the optimized tuning of ultrasonic parameters, sonoporation, transdermal and responsive drug delivery, acoustic cavitation in vasculature and oncology, contrast imaging for real-time magnification of cell-microbubble dynamics and biomolecular targeting. Scholarly literature was sought through database search on key terminology, latest topics, reputable experts and established journals over the last five years. EXPERT OPINION Cavitation offers immense promise in overcoming current diffusion and convection limitations for treating skull/brain/vascular/tissue injuries and ablating tumors to minimize chronic/acute effects. Since stable cavitation facilitates the restoration of US-opened BBB and the modulation of drug concentration, US equipment with programmable imaging modality and sensitivity are envisaged to create safer miniaturized devices for personalized care. Due to differing biomedical protocols with regard to specific medical conditions, quantitative and qualitative controls are mandatory before translation to real-life clinical applications can be accomplished.
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Affiliation(s)
- Moom Sinn Aw
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia.,b Faculty of Health and Life Sciences , Coventry University , West Midlands , UK
| | - Larysa Paniwnyk
- c Faculty of Health and Life Sciences , Coventry University , West Midlands , UK
| | - Dusan Losic
- a School of Chemical Engineering , The University of Adelaide , Adelaide , Australia
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Lajoinie G, De Cock I, Coussios CC, Lentacker I, Le Gac S, Stride E, Versluis M. In vitro methods to study bubble-cell interactions: Fundamentals and therapeutic applications. BIOMICROFLUIDICS 2016; 10:011501. [PMID: 26865903 PMCID: PMC4733084 DOI: 10.1063/1.4940429] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 01/05/2016] [Indexed: 05/08/2023]
Abstract
Besides their use as contrast agents for ultrasound imaging, microbubbles are increasingly studied for a wide range of therapeutic applications. In particular, their ability to enhance the uptake of drugs through the permeabilization of tissues and cell membranes shows great promise. In order to fully understand the numerous paths by which bubbles can interact with cells and the even larger number of possible biological responses from the cells, thorough and extensive work is necessary. In this review, we consider the range of experimental techniques implemented in in vitro studies with the aim of elucidating these microbubble-cell interactions. First of all, the variety of cell types and cell models available are discussed, emphasizing the need for more and more complex models replicating in vivo conditions together with experimental challenges associated with this increased complexity. Second, the different types of stabilized microbubbles and more recently developed droplets and particles are presented, followed by their acoustic or optical excitation methods. Finally, the techniques exploited to study the microbubble-cell interactions are reviewed. These techniques operate over a wide range of timescales, or even off-line, revealing particular aspects or subsequent effects of these interactions. Therefore, knowledge obtained from several techniques must be combined to elucidate the underlying processes.
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Affiliation(s)
- Guillaume Lajoinie
- Physics of Fluids Group, MESA+ Institute for Nanotechnology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , Enschede, The Netherlands
| | - Ine De Cock
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent Research Group on Nanomedicines, Faculty of Pharmaceutical Sciences, Ghent University , Ghent, Belgium
| | | | - Ine Lentacker
- Laboratory of General Biochemistry and Physical Pharmacy, Ghent Research Group on Nanomedicines, Faculty of Pharmaceutical Sciences, Ghent University , Ghent, Belgium
| | - Séverine Le Gac
- MESA+ Institute for Nanotechnology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , Enschede, The Netherlands
| | - Eleanor Stride
- Institute of Biomedical Engineering, University of Oxford , Oxford, United Kingdom
| | - Michel Versluis
- Physics of Fluids Group, MESA+ Institute for Nanotechnology, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente , Enschede, The Netherlands
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Wallace N, Wrenn SP. Ultrasound triggered drug delivery with liposomal nested microbubbles. ULTRASONICS 2015; 63:31-38. [PMID: 26152887 DOI: 10.1016/j.ultras.2015.06.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/10/2015] [Accepted: 06/10/2015] [Indexed: 06/04/2023]
Abstract
When ultrasound contrast agent microbubbles are nested within a liposome, damage to the liposome membrane caused by both stable and inertial cavitation of the microbubble allows for release of the aqueous core of the liposome. Triggered release was not accomplished unless microbubbles were present within the liposome. Leakage was tested using fluorescence assays developed specifically for this drug delivery vehicle and qualitative measurements using an optical microscope. These studies were done using a 1 MHz focused ultrasound transducer while varying parameters including peak negative ultrasound pressure, average liposome diameter, and microbubble concentration. Two regimes exist for membrane disruption caused by cavitating microbubbles. A faster release rate, as well as permanent membrane damage are seen for samples exposed to high pressure (2.1-3.7 MPa). A slower release rate and dilation/temporary poration are characteristic of stable cavitation for low pressure studies (0.54-1.7 MPa).
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Affiliation(s)
- N Wallace
- Department of Chemical Engineering, Drexel University, 3141 Chestnut St, Philadelphia, PA 19104, United States.
| | - S P Wrenn
- Department of Chemical Engineering, Drexel University, 3141 Chestnut St, Philadelphia, PA 19104, United States.
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32
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Zeghimi A, Escoffre JM, Bouakaz A. Role of endocytosis in sonoporation-mediated membrane permeabilization and uptake of small molecules: a electron microscopy study. Phys Biol 2015; 12:066007. [PMID: 26599283 DOI: 10.1088/1478-3975/12/6/066007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sonoporation is a physical method that has been successfully used to deliver drugs into living cells both in vitro and in vivo for experimental and therapeutic purposes. Despite numerous studies on this topic, often reporting successful outcomes, very little is known about the mechanisms involved in the hypothesized membrane permeabilization processes. In this study, electron microscopy was used to investigate the ultra-structural modifications of cell membranes, induced by sonoporation. Here, we demonstrate that sonoporation in the presence of microbubbles induces the formation of a significant number of transient and permeant structures at the membrane level. These structures were transient with a half-life of 10 min and had a heterogeneous size distribution ranging from a few nanometers to 150 nm. We demonstrated that the number and the size of these structures were positively correlated with the enhanced intracellular uptake of small molecules. In addition, we showed that these structures were associated with caveolae-dependent endocytosis for two thirds of the recorded events, with the remaining one third related to non-specific routes such as membrane disruptions as well as caveolae-independent endocytosis. In conclusion, our observations provide direct evidences of the involvement of caveolae-endocytosis in cell membrane permeabilization to small molecules after sonoporation.
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Kivinen J, Togtema M, Mulzer G, Choi J, Zehbe I, Curiel L, Pichardo S. Sonoporation efficacy on SiHa cells in vitro at raised bath temperatures-experimental validation of a prototype sonoporation device. J Ther Ultrasound 2015; 3:19. [PMID: 26550479 PMCID: PMC4636885 DOI: 10.1186/s40349-015-0040-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 10/26/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A device was devised which aimed to reduce the time and expertise required to perform sonoporation on adherent cell cultures. This prototype device was used to examine the superficial effect of bath temperature on sonoporation efficacy. METHODS The prototype device consisted of six ultrasound transducers affixed beneath an Opticell stage. Six transducers with nominal diameters of 20 mm were constructed and the acoustic field of each was characterized using hydrophone scanning. A near field treatment plane was chosen for each transducer to minimize field heterogeneity in the near field. Cervical cancer-derived SiHa cells were exposed to nine different treatments in the presence of plasmid DNA-expressing green fluorescent protein (GFP). Ultrasound treatment with Definity ultrasound contrast agent (US+UCA) present, ultrasound treatment without contrast agent present (US), and a sham ultrasound treatment in the presence of ultrasound contrast agent (CA) were each performed at bath temperatures of 37, 39.5, and 42 °C. Each treatment was performed in biological triplicate. GFP expression and PARP expression following treatment were measured using fluorescent microscopy and digital image processing. Cell detachment was measured using phase contrast microscopy before and after treatment. RESULTS Mean (± s.d.) transfection rates for the US+UCA treatment were 5.4(±0.92), 5.8(±1.3), and 5.3(±1.1) % at 37, 39.5, and 42 °C, respectively. GFP expression and cell detachment were both significantly affected by the presence of ultrasound contrast agent (p < 0.001, p < 0.001). Neither GFP expression, PARP expression, or detachment differed significantly between bath temperatures. CONCLUSIONS Bath temperature did not impact the efficacy of sonoporation treatment on SiHa cells in vitro. The prototype device was found to be suitable for performing sonoporation on adherent cell cultures and will reduce the time and expertise required for conducting sonoporation experiments on adherent cell cultures in the future.
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Affiliation(s)
- Jonathan Kivinen
- Department of Electrical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1 Canada.,Image-Guided Interventions, Thunder Bay Regional Research Institute, 980 Oliver Road, Thunder Bay, Ontario, P7B 6V4 Canada
| | - Melissa Togtema
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1 Canada.,Probe Development and Biomarker Exploration, Thunder Bay Regional Research Institute, 980 Oliver Road, Thunder Bay, Ontario, P7B 6V4 Canada
| | - Gregor Mulzer
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1 Canada.,Probe Development and Biomarker Exploration, Thunder Bay Regional Research Institute, 980 Oliver Road, Thunder Bay, Ontario, P7B 6V4 Canada
| | - Joshua Choi
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1 Canada
| | - Ingeborg Zehbe
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1 Canada.,Probe Development and Biomarker Exploration, Thunder Bay Regional Research Institute, 980 Oliver Road, Thunder Bay, Ontario, P7B 6V4 Canada
| | - Laura Curiel
- Department of Electrical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1 Canada.,Image-Guided Interventions, Thunder Bay Regional Research Institute, 980 Oliver Road, Thunder Bay, Ontario, P7B 6V4 Canada
| | - Samuel Pichardo
- Department of Electrical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1 Canada.,Image-Guided Interventions, Thunder Bay Regional Research Institute, 980 Oliver Road, Thunder Bay, Ontario, P7B 6V4 Canada
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Novel delivery approaches for cancer therapeutics. J Control Release 2015; 219:248-268. [PMID: 26456750 DOI: 10.1016/j.jconrel.2015.09.067] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 09/09/2015] [Accepted: 09/30/2015] [Indexed: 02/07/2023]
Abstract
Currently, a majority of cancer treatment strategies are based on the removal of tumor mass mainly by surgery. Chemical and physical treatments such as chemo- and radiotherapies have also made a major contribution in inhibiting rapid growth of malignant cells. Furthermore, these approaches are often combined to enhance therapeutic indices. It is widely known that surgery, chemo- and radiotherapy also inhibit normal cells growth. In addition, these treatment modalities are associated with severe side effects and high toxicity which in turn lead to low quality of life. This review encompasses novel strategies for more effective chemotherapeutic delivery aiming to generate better prognosis. Currently, cancer treatment is a highly dynamic field and significant advances are being made in the development of novel cancer treatment strategies. In contrast to conventional cancer therapeutics, novel approaches such as ligand or receptor based targeting, triggered release, intracellular drug targeting, gene delivery, cancer stem cell therapy, magnetic drug targeting and ultrasound-mediated drug delivery, have added new modalities for cancer treatment. These approaches have led to selective detection of malignant cells leading to their eradication with minimal side effects. Lowering multi-drug resistance and involving influx transportation in targeted drug delivery to cancer cells can also contribute significantly in the therapeutic interventions in cancer.
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35
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Derieppe M, Rojek K, Escoffre JM, de Senneville BD, Moonen C, Bos C. Recruitment of endocytosis in sonopermeabilization-mediated drug delivery: a real-time study. Phys Biol 2015; 12:046010. [PMID: 26118644 DOI: 10.1088/1478-3975/12/4/046010] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Microbubbles (MBs) in combination with ultrasound (US) can enhance cell membrane permeability, and have the potential to facilitate the cellular uptake of hydrophilic molecules. However, the exact mechanism behind US- and MB-mediated intracellular delivery still remains to be fully understood. Among the proposed mechanisms are formation of transient pores and endocytosis stimulation. In our study, we investigated whether endocytosis is involved in US- and MB-mediated delivery of small molecules. Dynamic fluorescence microscopy was used to investigate the effects of endocytosis inhibitors on the pharmacokinetic parameters of US- and MB-mediated uptake of SYTOX Green, a 600 Da hydrophilic model drug. C6 rat glioma cells, together with SonoVue(®) MBs, were exposed to 1.4 MHz US waves at 0.2 MPa peak-negative pressure. Collection of the signal intensity in each individual nucleus was monitored during and after US exposure by a fibered confocal fluorescence microscope designed for real-time imaging. Exposed to US waves, C6 cells pretreated with chlorpromazine, an inhibitor of clathrin-mediated endocytosis, showed up to a 2.5-fold significant increase of the uptake time constant, and a 1.1-fold increase with genistein, an inhibitor of caveolae-mediated endocytosis. Both inhibitors slowed down the US-mediated uptake of SYTOX Green. With C6 cells and our experimental settings, these quantitative data indicate that endocytosis plays a role in sonopermeabilization-mediated delivery of small molecules with a more predominant contribution of clathrin-mediated endocytosis.
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Affiliation(s)
- Marc Derieppe
- Imaging Division, University Medical Center Utrecht, Utrecht, Netherlands
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36
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Keravnou CP, Mannaris C, Averkiou MA. Accurate measurement of microbubble response to ultrasound with a diagnostic ultrasound scanner. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2015; 62:176-184. [PMID: 25585401 DOI: 10.1109/tuffc.2014.006664] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Ultrasound and microbubbles are often used to enhance drug delivery and the suggested mechanisms are extravasation and sonoporation. Drug delivery schemes with ultrasound and microbubbles at both low and high acoustic amplitudes have been suggested. A diagnostic ultrasound scanner may play a double role as both an imaging and a therapy device. It was not possible to accurately measure microbubble response with an ultrasound scanner for a large range of acoustic pressures and microbubble concentrations until now, mainly because of signal saturation issues. A method for continuously adjusting the receive gain of a scanner and limiting signal saturation was developed to accurately measure backscattered echoes from microbubbles for mechanical indexes (MIs) up to 2.1. The intensity of backscattered echoes from microbubbles increased quarticly with MI without reaching any limit. The signal intensity from microbubbles was found to be linear with concentration at both low and high MIs. However, at very high concentrations, acoustic shadowing occurs which limits the delivered acoustic pressure in deeper areas. The contrastto- tissue ratio was also measured and found to stay constant with MI. These results can be used to better guide drug delivery approaches and to also develop imaging techniques for therapy procedures.
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Lammertink B, Deckers R, Storm G, Moonen C, Bos C. Duration of ultrasound-mediated enhanced plasma membrane permeability. Int J Pharm 2014; 482:92-8. [PMID: 25497443 DOI: 10.1016/j.ijpharm.2014.12.013] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 12/08/2014] [Accepted: 12/09/2014] [Indexed: 01/26/2023]
Abstract
Ultrasound (US) induced cavitation can be used to enhance the intracellular delivery of drugs by transiently increasing the cell membrane permeability. The duration of this increased permeability, termed temporal window, has not been fully elucidated. In this study, the temporal window was investigated systematically using an endothelial- and two breast cancer cell lines. Model drug uptake was measured as a function of time after sonication, in the presence of SonoVue™ microbubbles, in HUVEC, MDA-MB-468 and 4T1 cells. In addition, US pressure amplitude was varied in MDA-MB-468 cells to investigate its effect on the temporal window. Cell membrane permeability of HUVEC and MDA-MB-468 cells returned to control level within 1-2 h post-sonication, while 4T1 cells needed over 3h. US pressure affected the number of cells with increased membrane permeability, as well as the temporal window in MDA-MB-468 cells. This study shows that the duration of increased membrane permeability differed between the cell lines and US pressures used here. However, all were consistently in the order of 1-3 h after sonication.
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Affiliation(s)
- Bart Lammertink
- Imaging Division, University Medical Center Utrecht, Utrecht, Netherlands.
| | - Roel Deckers
- Imaging Division, University Medical Center Utrecht, Utrecht, Netherlands
| | - Gert Storm
- Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands; Targeted Therapeutics, University of Twente, Enschede, Netherlands
| | - Chrit Moonen
- Imaging Division, University Medical Center Utrecht, Utrecht, Netherlands
| | - Clemens Bos
- Imaging Division, University Medical Center Utrecht, Utrecht, Netherlands
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Lee IC, Lo TL, Young TH, Li YC, Chen NG, Chen CH, Chang YC. Differentiation of neural stem/progenitor cells using low-intensity ultrasound. ULTRASOUND IN MEDICINE & BIOLOGY 2014; 40:2195-2206. [PMID: 25023110 DOI: 10.1016/j.ultrasmedbio.2014.05.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 04/30/2014] [Accepted: 05/01/2014] [Indexed: 06/03/2023]
Abstract
Herein, we report the evaluation of apoptosis, cell differentiation, neurite outgrowth and differentiation of neural stem/progenitor cells (NSPCs) in response to low-intensity ultrasound (LIUS) exposure. NSPCs were cultured under different conditions, with and without LIUS exposure, to evaluate the single and complex effects of LIUS. A lactic dehydrogenase assay revealed that the cell viability of NSPCs was maintained with LIUS exposure at an intensity range from 100 to 500 mW/cm(2). Additionally, in comparison with no LIUS exposure, the cell survival rate was improved with the combination of medium supplemented with nerve growth factor and LIUS exposure. Our results indicate that LIUS exposure promoted NSPC attachment and differentiation on a glass substrate. Neurite outgrowth assays revealed the generation of longer, thicker neurites after LIUS exposure. Furthermore, LIUS stimulation substantially increased the percentage of differentiating neural cells in NSPCs treated with nerve growth factor in comparison with the unstimulated group. The high percentage of differentiated neural cells indicated that LIUS induced neuronal networks denser than those observed in the unstimulated groups. Furthermore, the release of nitric oxide, an important small-molecule neurotransmitter, was significantly upregulated after LIUS exposure. It is therefore reasonable to suggest that LIUS promotes the differentiation of NSPCs into neural cells, induces neurite outgrowth and regulates nitric oxide production; thus, LIUS may be a potential candidate for NSPC induction and neural cell therapy.
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Affiliation(s)
- I-Chi Lee
- Graduate Institute of Biochemical and Biomedical Engineering, Chang-Gung University, Tao-yuan, Taiwan, ROC.
| | - Tsu-Lin Lo
- Graduate Institute of Biochemical and Biomedical Engineering, Chang-Gung University, Tao-yuan, Taiwan, ROC
| | - Tai-Horng Young
- Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | - Yi-Chen Li
- Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
| | - Nelson G Chen
- Department of Electrical and Computer Engineering, National Chiao Tung University, Hsin Chu, Taiwan, ROC
| | | | - Ying-Chih Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan, ROC.
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39
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Rychak JJ, Klibanov AL. Nucleic acid delivery with microbubbles and ultrasound. Adv Drug Deliv Rev 2014; 72:82-93. [PMID: 24486388 PMCID: PMC4204336 DOI: 10.1016/j.addr.2014.01.009] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 01/20/2014] [Accepted: 01/23/2014] [Indexed: 02/02/2023]
Abstract
Nucleic acid-based therapy is a growing field of drug delivery research. Although ultrasound has been suggested to enhance transfection decades ago, it took a combination of ultrasound with nucleic acid carrier systems (microbubbles, liposomes, polyplexes, and viral carriers) to achieve reasonable nucleic acid delivery efficacy. Microbubbles serve as foci for local deposition of ultrasound energy near the target cell, and greatly enhance sonoporation. The major advantage of this approach is in the minimal transfection in the non-insonated non-target tissues. Microbubbles can be simply co-administered with the nucleic acid carrier or can be modified to carry nucleic acid themselves. Liposomes with embedded gas or gas precursor particles can also be used to carry nucleic acid, release and deliver it by the ultrasound trigger. Successful testing in a wide variety of animal models (myocardium, solid tumors, skeletal muscle, and pancreas) proves the potential usefulness of this technique for nucleic acid drug delivery.
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Affiliation(s)
| | - Alexander L Klibanov
- Cardiovascular Division, University of Virginia, Charlottesville, VA 22908-1394, USA.
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Kiessling F, Fokong S, Bzyl J, Lederle W, Palmowski M, Lammers T. Recent advances in molecular, multimodal and theranostic ultrasound imaging. Adv Drug Deliv Rev 2014; 72:15-27. [PMID: 24316070 DOI: 10.1016/j.addr.2013.11.013] [Citation(s) in RCA: 142] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 11/14/2013] [Accepted: 11/25/2013] [Indexed: 12/12/2022]
Abstract
Ultrasound (US) imaging is an exquisite tool for the non-invasive and real-time diagnosis of many different diseases. In this context, US contrast agents can improve lesion delineation, characterization and therapy response evaluation. US contrast agents are usually micrometer-sized gas bubbles, stabilized with soft or hard shells. By conjugating antibodies to the microbubble (MB) surface, and by incorporating diagnostic agents, drugs or nucleic acids into or onto the MB shell, molecular, multimodal and theranostic MBs can be generated. We here summarize recent advances in molecular, multimodal and theranostic US imaging, and introduce concepts how such advanced MB can be generated, applied and imaged. Examples are given for their use to image and treat oncological, cardiovascular and neurological diseases. Furthermore, we discuss for which therapeutic entities incorporation into (or conjugation to) MB is meaningful, and how US-mediated MB destruction can increase their extravasation, penetration, internalization and efficacy.
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Kooiman K, Vos HJ, Versluis M, de Jong N. Acoustic behavior of microbubbles and implications for drug delivery. Adv Drug Deliv Rev 2014; 72:28-48. [PMID: 24667643 DOI: 10.1016/j.addr.2014.03.003] [Citation(s) in RCA: 238] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 02/11/2014] [Accepted: 03/18/2014] [Indexed: 12/21/2022]
Abstract
Ultrasound contrast agents are valuable in diagnostic ultrasound imaging, and they increasingly show potential for drug delivery. This review focuses on the acoustic behavior of flexible-coated microbubbles and rigid-coated microcapsules and their contribution to enhanced drug delivery. Phenomena relevant to drug delivery, such as non-spherical oscillations, shear stress, microstreaming, and jetting will be reviewed from both a theoretical and experimental perspective. Further, the two systems for drug delivery, co-administration and the microbubble as drug carrier system, are reviewed in relation to the microbubble behavior. Finally, future prospects are discussed that need to be addressed for ultrasound contrast agents to move from a pre-clinical tool into a clinical setting.
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Lentacker I, De Cock I, Deckers R, De Smedt SC, Moonen CTW. Understanding ultrasound induced sonoporation: definitions and underlying mechanisms. Adv Drug Deliv Rev 2014; 72:49-64. [PMID: 24270006 DOI: 10.1016/j.addr.2013.11.008] [Citation(s) in RCA: 473] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 11/13/2013] [Indexed: 01/01/2023]
Abstract
In the past two decades, research has underlined the potential of ultrasound and microbubbles to enhance drug delivery. However, there is less consensus on the biophysical and biological mechanisms leading to this enhanced delivery. Sonoporation, i.e. the formation of temporary pores in the cell membrane, as well as enhanced endocytosis is reported. Because of the variety of ultrasound settings used and corresponding microbubble behavior, a clear overview is missing. Therefore, in this review, the mechanisms contributing to sonoporation are categorized according to three ultrasound settings: i) low intensity ultrasound leading to stable cavitation of microbubbles, ii) high intensity ultrasound leading to inertial cavitation with microbubble collapse, and iii) ultrasound application in the absence of microbubbles. Using low intensity ultrasound, the endocytotic uptake of several drugs could be stimulated, while short but intense ultrasound pulses can be applied to induce pore formation and the direct cytoplasmic uptake of drugs. Ultrasound intensities may be adapted to create pore sizes correlating with drug size. Small molecules are able to diffuse passively through small pores created by low intensity ultrasound treatment. However, delivery of larger drugs such as nanoparticles and gene complexes, will require higher ultrasound intensities in order to allow direct cytoplasmic entry.
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Affiliation(s)
- I Lentacker
- Ghent Research Group on Nanomedicines, Department of Pharmaceutics, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - I De Cock
- Ghent Research Group on Nanomedicines, Department of Pharmaceutics, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium
| | - R Deckers
- Imaging Division, University Medical Center Utrecht, PO Box 85500, 3508 GA Utrecht, The Netherlands
| | - S C De Smedt
- Ghent Research Group on Nanomedicines, Department of Pharmaceutics, Ghent University, Harelbekestraat 72, 9000 Ghent, Belgium.
| | - C T W Moonen
- Imaging Division, University Medical Center Utrecht, PO Box 85500, 3508 GA Utrecht, The Netherlands
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Mestas JL, Fowler RA, Evjen TJ, Somaglino L, Moussatov A, Ngo J, Chesnais S, Røgnvaldsson S, Fossheim SL, Nilssen EA, Lafon C. Therapeutic efficacy of the combination of doxorubicin-loaded liposomes with inertial cavitation generated by confocal ultrasound in AT2 Dunning rat tumour model. J Drug Target 2014; 22:688-97. [DOI: 10.3109/1061186x.2014.906604] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Browning RJ, Rajkumar V, Pedley RB, Eckersley RJ, Blower PJ. Prospects for enhancement of targeted radionuclide therapy of cancer using ultrasound. J Labelled Comp Radiopharm 2014; 57:279-84. [PMID: 24347456 DOI: 10.1002/jlcr.3157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 10/29/2013] [Indexed: 01/18/2023]
Abstract
Ultrasound-mediated drug delivery is a promising means of enhancing delivery, distribution and effectiveness of drugs within tumours. In this review, prospects for exploiting ultrasound to improve the tumour delivery and distribution of radiolabelled antibodies for radioimmunotherapy and to overcome barriers imposed by tumour microenvironment are discussed.
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Affiliation(s)
- Richard J Browning
- King's College London, Division of Imaging Sciences and Biomedical Engineering, St Thomas' Hospital, 4th Floor Lambeth Wing, London, SE1 9EH, UK
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Tong HP, Wang LF, Guo YL, Li L, Fan XZ, Ding J, Huang HY. Preparation of protamine cationic nanobubbles and experimental study of their physical properties and in vivo contrast enhancement. ULTRASOUND IN MEDICINE & BIOLOGY 2013; 39:2147-2157. [PMID: 23932278 DOI: 10.1016/j.ultrasmedbio.2013.05.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 05/17/2013] [Accepted: 05/24/2013] [Indexed: 06/02/2023]
Abstract
In this study, we aimed to prepare a novel type of microbubble (MB), protamine cationic nanobubble (NB), to provide a new vector for tumor gene therapy. We prepared cationic NBs with protamine and other lipid components using mechanical oscillation. The protamine cationic NBs had a mean diameter of 521.2 ± 37.57 nm, a zeta potential of +18.5 mV, and a gene-carrying capacity of 15.69 μg androgen receptor (AR) siRNA per 10(8) NBs. The cationic NBs exhibited superior contrast enhancement for in vivo imaging compared with SonoVue (Bracco, Geneva, Switzerland), and their physical properties did not change significantly after 1 wk; meanwhile, the transfection efficiency of the cationic NBs in androgen-independent prostate cancer cells mediated by ultrasound irradiation was better than that of liposomes (82.17 ± 7.4% vs. 55.04 ± 5.4%, p < 0.01). Therefore, the protamine cationic NB can be considered for use as a novel type of gene-loading MB for ultrasound imaging and MB-mediated gene therapy of tumors.
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Affiliation(s)
- Hai-Peng Tong
- Department of Ultrasound, Southwest Hospital, Third Military Medical University, Chongqing, China
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Derieppe M, Yudina A, Lepetit-Coiffé M, de Senneville BD, Bos C, Moonen C. Real-time assessment of ultrasound-mediated drug delivery using fibered confocal fluorescence microscopy. Mol Imaging Biol 2013; 15:3-11. [PMID: 22707046 DOI: 10.1007/s11307-012-0568-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE Transport across the plasma membrane is a critical step of drug delivery for weakly permeable compounds with intracellular mode of action. The purpose of this study is to demonstrate real-time monitoring of ultrasound (US)-mediated cell-impermeable model drug uptake with fibered confocal fluorescence microscopy (FCFM). PROCEDURES An in vitro setup was designed to combine a mono-element US transducer, a cell chamber with a monolayer of tumor cells together with SonoVue microbubbles, and a FCFM system. The cell-impermeable intercalating dye, SYTOX Green, was used to monitor US-mediated uptake. RESULTS The majority of the cell population showed fluorescence signal enhancement 10 s after US onset. The mean rate constant k of signal enhancement was calculated to be 0.23 ± 0.04 min(-1). CONCLUSIONS Feasibility of real-time monitoring of US-mediated intracellular delivery by FCFM has been demonstrated. The method allowed quantitative assessment of model drug uptake, holding great promise for further local drug delivery studies.
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Affiliation(s)
- Marc Derieppe
- Laboratory for Molecular and Functional Imaging: From Physiology to Therapy, FRE 3313-CNRS and University Bordeaux Segalen, 146, rue Léo Saignat, Case 117, 33076, Bordeaux cedex, France
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Thakkar D, Gupta R, Monson K, Rapoport N. Effect of ultrasound on the permeability of vascular wall to nano-emulsion droplets. ULTRASOUND IN MEDICINE & BIOLOGY 2013; 39:1804-11. [PMID: 23849384 PMCID: PMC3777764 DOI: 10.1016/j.ultrasmedbio.2013.04.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 03/08/2013] [Accepted: 04/11/2013] [Indexed: 05/10/2023]
Abstract
The effect of ultrasound on the permeability of blood vessels to nano-emulsion droplets was investigated using excised mouse carotid arteries as model blood vessels. Perfluorocarbon nano-droplets were formed by perfluoro-15-crown-5-ether and stabilized by poly(ethylene oxide)-co-poly(DL-lactide) block co-polymer shells. Nano-droplet fluorescence was imparted by interaction with fluorescein isothiocyanate-dextran (molecular weight = 70,000 Da). The permeability of carotid arteries to nano-droplets was studied in the presence and absence of continuous wave or pulsed therapeutic 1-MHz ultrasound. The data indicated that the application of ultrasound resulted in permeabilization of the vascular wall to nano-droplets. The effect of continuous wave ultrasound was substantially stronger than that of pulsed ultrasound of the same total energy. No effect of blood vessel pre-treatment with ultrasound was observed.
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Affiliation(s)
- Dhaval Thakkar
- Department of Mechanical Engineering, University of Utah, Salt Lake City, Utah 84112, USA
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Gourevich D, Dogadkin O, Volovick A, Wang L, Gnaim J, Cochran S, Melzer A. Ultrasound-mediated targeted drug delivery with a novel cyclodextrin-based drug carrier by mechanical and thermal mechanisms. J Control Release 2013; 170:316-24. [DOI: 10.1016/j.jconrel.2013.05.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 05/25/2013] [Accepted: 05/29/2013] [Indexed: 01/10/2023]
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Rapoport N, Payne A, Dillon C, Shea J, Scaife C, Gupta R. Focused ultrasound-mediated drug delivery to pancreatic cancer in a mouse model. J Ther Ultrasound 2013; 1:11. [PMID: 25516800 PMCID: PMC4265944 DOI: 10.1186/2050-5736-1-11] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 05/19/2013] [Indexed: 01/14/2023] Open
Abstract
Background Many aspects of the mechanisms involved in ultrasound-mediated therapy remain obscure. In particular, the relative roles of drug and ultrasound, the effect of the time of ultrasound application, and the effect of tissue heating are not yet clear. The current study was undertaken with the goal to clarify these aspects of the ultrasound-mediated drug delivery mechanism. Methods Focused ultrasound-mediated drug delivery was performed under magnetic resonance imaging guidance (MRgFUS) in a pancreatic ductal adenocarcinoma (PDA) model grown subcutaneously in nu/nu mice. Paclitaxel (PTX) was used as a chemotherapeutic agent because it manifests high potency in the treatment of gemcitabine-resistant PDA. Poly(ethylene oxide)-co-poly(d,l-lactide) block copolymer stabilized perfluoro-15-crown-5-ether nanoemulsions were used as drug carriers. MRgFUS was applied at sub-ablative pressure levels in both continuous wave and pulsed modes, and only a fraction of the tumor was treated. Results Positive treatment effects and even complete tumor resolution were achieved by treating the tumor with MRgFUS after injection of nanodroplet encapsulated drug. The MRgFUS treatment enhanced the action of the drug presumably through enhanced tumor perfusion and blood vessel and cell membrane permeability that increased the drug supply to tumor cells. The effect of the pulsed MRgFUS treatment with PTX-loaded nanodroplets was clearly smaller than that of continuous wave MRgFUS treatment, supposedly due to significantly lower temperature increase as measured with MR thermometry and decreased extravasation. The time of the MRgFUS application after drug injection also proved to be an important factor with the best results observed when ultrasound was applied at least 6 h after the injection of drug-loaded nanodroplets. Some collateral damage was observed with particular ultrasound protocols supposedly associated with enhanced inflammation. Conclusion This presented data suggest that there exists an optimal range of ultrasound application parameters and drug injection time. Decreased tumor growth, or complete resolution, was achieved with continuous wave ultrasound pressures below or equal to 3.1 MPa and drug injection times of at least 6 h prior to treatment. Increased acoustic pressure or ultrasound application before or shortly after drug injection gave increased tumor growth when compared to other protocols.
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Affiliation(s)
- Natalya Rapoport
- Department of Bioengineering, University of Utah, 36 S. Wasatch Dr., Room 3100, Salt Lake City, UT 84112, USA
| | - Allison Payne
- Department of Radiology, University of Utah, Salt Lake City, UT 84112, USA
| | - Christopher Dillon
- Department of Bioengineering, University of Utah, 36 S. Wasatch Dr., Room 3100, Salt Lake City, UT 84112, USA
| | - Jill Shea
- Department of Surgery, University of Utah, Salt Lake City, UT 84112, USA
| | - Courtney Scaife
- Department of Surgery, University of Utah, Salt Lake City, UT 84112, USA
| | - Roohi Gupta
- Department of Bioengineering, University of Utah, 36 S. Wasatch Dr., Room 3100, Salt Lake City, UT 84112, USA ; Current address: Department of Radiation Oncology, Fox Chase Cancer Center, P0103, 333 Cottman Avenue, Philadelphia, PA 19111, USA
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