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Koczera P, Thomas F, Rama E, Thoröe-Boveleth S, Kiessling F, Lammers T, Herres-Pawlis S. Microbubble-encapsulated Cobalt Nitrato Complexes for Ultrasound-triggerable Nitric Oxide Delivery. ChemMedChem 2024; 19:e202400232. [PMID: 38747628 DOI: 10.1002/cmdc.202400232] [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: 03/30/2024] [Revised: 05/09/2024] [Indexed: 07/22/2024]
Abstract
Cobalt complexes exhibit versatile reactivity with nitric oxide (NO), enabling their utilization in applications ranging from homogeneous catalysis to NO-based modulation of biological processes. However, the coordination geometry around the cobalt center is complex, the therapeutic window of NO is narrow, and controlled NO delivery is difficult. To better understand the complexation of cobalt with NO, we prepared four cobalt nitrato complexes and present a structure-property relationship for ultrasound-triggerable NO release. We hypothesized that modulation of the coordination geometry by ligand-modification would improve responsiveness to mechanical stimuli, like ultrasound. To enable eventual therapeutic testing, we here first demonstrate the in vitro tolerability of [Co(ethylenediamine)2(NO)(NO3)](NO3) in A431 epidermoid carcinoma cells and J774A.1 murine macrophages, and we subsequently show successful encapsulation of the complex in poly(butyl cyanoacrylate) microbubbles. These hybrid Co-NO-containing microbubbles may in the future aid in ultrasound imaging-guided treatment of NO-responsive vascular pathologies.
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Affiliation(s)
- Patrick Koczera
- Institute for Experimental Molecular Imaging, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Fabian Thomas
- Institute of Inorganic Chemistry, RWTH Aachen University, Aachen, Germany
| | - Elena Rama
- Institute for Experimental Molecular Imaging, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Sven Thoröe-Boveleth
- Institute for Occupational, Social and Environmental Medicine, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, Medical Faculty, RWTH Aachen University, Aachen, Germany
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2
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Jiao H, Mao Q, Razzaq N, Ankri R, Cui J. Ultrasound technology assisted colloidal nanocrystal synthesis and biomedical applications. ULTRASONICS SONOCHEMISTRY 2024; 103:106798. [PMID: 38330546 PMCID: PMC10865478 DOI: 10.1016/j.ultsonch.2024.106798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 12/08/2023] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Non-invasive and high spatiotemporal resolution mythologies for the diagnosis and treatment of disease in clinical medicine promote the development of modern medicine. Ultrasound (US) technology provides a non-invasive, real-time, and cost-effective clinical imaging modality, which plays a significant role in chemical synthesis and clinical translation, especially in in vivo imaging and cancer therapy. On the one hand, the US treatment is usually accompanied by cavitation, leading to high temperature and pressure, so-called "hot spot", playing a significant role in sonochemical-based colloidal synthesis. Compared with the classical nucleation synthetic method, the sonochemical synthesis strategy presents high efficiency for the fabrication of colloidal nanocrystals due to its fast nucleation and growth procedure. On the other hand, the US is attractive for in vivo and medical treatment, with applications increasing with the development of novel contrast agents, such as the micro and nano bubbles, which are widely used in neuromodulation, with which the US can breach the blood-brain barrier temporarily and safely, opening a new door to neuromodulation and therapy. In terms of cancer treatment, sonodynamic therapy and US-assisted synergetic therapy show great effects against cancer and sonodynamic immunotherapy present unparalleled potentiality compared with other synergetic therapies. Further development of ultrasound technology can revolutionize both chemical synthesis and clinical translation by improving efficiency, precision, and accessibility while reducing environmental impact and enhancing patient care. In this paper, we review the US-assisted sonochemical synthesis and biological applications, to promote the next generation US technology-assisted applications.
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Affiliation(s)
- Haorong Jiao
- The Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Renai Road, Industrial Park, Suzhou 215123, Jiangsu, China
| | - Qiulian Mao
- The Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Renai Road, Industrial Park, Suzhou 215123, Jiangsu, China
| | - Noman Razzaq
- The Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Renai Road, Industrial Park, Suzhou 215123, Jiangsu, China
| | - Rinat Ankri
- The Biomolecular and Nanophotonics Lab, Ariel University, 407000, P.O.B. 3, Ariel, Israel.
| | - Jiabin Cui
- The Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, 199 Renai Road, Industrial Park, Suzhou 215123, Jiangsu, China.
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3
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Yang J, Chen C, Miao X, Wang T, Guan Y, Zhang L, Chen S, Zhang Z, Xia Z, Kang J, Li H, Yin T, Hei Z, Yao W. Injury Site Specific Xenon Delivered by Platelet Membrane-Mimicking Hybrid Microbubbles to Protect Against Acute Kidney Injury via Inhibition of Cellular Senescence. Adv Healthc Mater 2023; 12:e2203359. [PMID: 36977502 DOI: 10.1002/adhm.202203359] [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: 12/24/2022] [Revised: 03/06/2023] [Indexed: 03/30/2023]
Abstract
Inhalation of xenon gas improves acute kidney injury (AKI). However, xenon can only be delivered through inhalation, which causes non-specific distribution and low bioavailability of xenon, thus limiting its clinical application. In this study, xenon is loaded into platelet membrane-mimicking hybrid microbubbles (Xe-Pla-MBs). In ischemia-reperfusion-induced AKI, intravenously injected Xe-Pla-MBs adhere to the endothelial injury site in the kidney. Xe-Pla-MBs are then disrupted by ultrasound, and xenon is released to the injured site. This release of xenon reduced ischemia-reperfusion-induced renal fibrosis and improved renal function, which are associated with decreased protein expression of cellular senescence markers p53 and p16, as well as reduced beta-galactosidase in renal tubular epithelial cells. Together, platelet membrane-mimicking hybrid microbubble-delivered xenon to the injred site protects against ischemia-reperfusion-induced AKI, which likely reduces renal senescence. Thus, the delivery of xenon by platelet membrane-mimicking hybrid microbubbles is a potential therapeutic approach for AKI.
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Affiliation(s)
- Jing Yang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Chaojin Chen
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Xiaoyan Miao
- Department of Medical Ultrasonic, Laboratory of Novel Optoacoustic (Ultrasonic) Imaging, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Tienan Wang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Yu Guan
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Linan Zhang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Sufang Chen
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Zheng Zhang
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Zhengyuan Xia
- Department of Medicine, The University of Hong Kong, Hong Kong, 999077, P. R. China
| | - Jiayi Kang
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Haobo Li
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Tinghui Yin
- Department of Medical Ultrasonic, Laboratory of Novel Optoacoustic (Ultrasonic) Imaging, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Ziqing Hei
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
| | - Weifeng Yao
- Department of Anesthesiology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, P. R. China
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Drzał A, Delalande A, Dziurman G, Fournié M, Pichon C, Elas M. Increasing oxygen tension in tumor tissue using ultrasound sensitive O 2 microbubbles. Free Radic Biol Med 2022; 193:567-578. [PMID: 36356713 DOI: 10.1016/j.freeradbiomed.2022.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/04/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
Low tissue oxygenation significantly impairs the effectiveness of cancer therapy and promotes a more aggressive phenotype. Many strategies to improve tissue oxygenation have been proposed throughout the years, but only a few showed significant effects in clinical settings. We investigated stability and ultrasound pulse (UP) triggered oxygen release from phospholipid coated oxygen microbubbles (OMB) in vitro and in murine tumors in vivo using EPR oximetry. In solution, the investigated microbubbles are stable and responsive to ultrasound pulse. The addition of the OMB solution alone resulted in an increase in pO2 of approximately 70 mmHg which was further increased for an additional 80 mmHg after the application of UP. The in vivo kinetic study revealed a substantial, up to 120 mmHg, increase in tumor pO2 after UP application and then pO2 was decreasing for 20 min for intravenous injection and 15 min for intratumoral injection. A significant increase was also observed in groups that received microbubbles filled with nitrogen and ultrasound pulse and OMB without UP, but the effect was much lower. Oxygen microbubbles lead to a decrease in HIF-1a and VEGF-A both at the level of mRNA and protein. Toxicity analysis showed that intravenous injection of OMB does not cause oxidative damage to the heart, liver, or kidneys. However, elevated levels of oxidative damage to lipids and proteins were observed short-term in tumor tissue. In conclusion, we have demonstrated the feasibility of oxygen microbubbles in delivering oxygen effectively and safely to the tumor in living animals. Such treatment might enhance the effectiveness of other anticancer therapies.
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Affiliation(s)
- Agnieszka Drzał
- Jagiellonian University, Department of Biophysics and Cancer Biology, Kraków, Poland
| | - Anthony Delalande
- University of Orleans, 45067, Orleans, France; Center for Molecular Biophysics, CNRS Orleans, 45071, Orleans, France
| | - Gabriela Dziurman
- Jagiellonian University, Department of Biophysics and Cancer Biology, Kraków, Poland
| | - Mylene Fournié
- University of Orleans, 45067, Orleans, France; Center for Molecular Biophysics, CNRS Orleans, 45071, Orleans, France
| | - Chantal Pichon
- University of Orleans, 45067, Orleans, France; Institut Universitaire de France, 75231, Paris, France; Center for Molecular Biophysics, CNRS Orleans, 45071, Orleans, France
| | - Martyna Elas
- Jagiellonian University, Department of Biophysics and Cancer Biology, Kraków, Poland.
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5
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Cen J, Ye X, Liu X, Pan W, Zhang L, Zhang G, He N, Shen A, Hu J, Liu S. Fluorinated Copolypeptide‐Stabilized Microbubbles with Maleimide‐Decorated Surfaces as Long‐Term Ultrasound Contrast Agents. Angew Chem Int Ed Engl 2022; 61:e202209610. [DOI: 10.1002/anie.202209610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Jie Cen
- Department of Ultrasound Imaging & Department of Pharmacy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China 17 Lujiang Road Hefei, Anhui Province 230001 China
- CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China 96 Jinzhai Road Hefei, Anhui Province 230026 China
| | - Xianjun Ye
- Department of Ultrasound Imaging & Department of Pharmacy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China 17 Lujiang Road Hefei, Anhui Province 230001 China
| | - Xiao Liu
- Department of Ultrasound Imaging & Department of Pharmacy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China 17 Lujiang Road Hefei, Anhui Province 230001 China
| | - Wenhao Pan
- CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China 96 Jinzhai Road Hefei, Anhui Province 230026 China
| | - Lei Zhang
- Department of Ultrasound Imaging & Department of Pharmacy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China 17 Lujiang Road Hefei, Anhui Province 230001 China
| | - Guoying Zhang
- CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China 96 Jinzhai Road Hefei, Anhui Province 230026 China
| | - Nianan He
- Department of Ultrasound Imaging & Department of Pharmacy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China 17 Lujiang Road Hefei, Anhui Province 230001 China
| | - Aizong Shen
- Department of Ultrasound Imaging & Department of Pharmacy The First Affiliated Hospital of USTC Division of Life Sciences and Medicine University of Science and Technology of China 17 Lujiang Road Hefei, Anhui Province 230001 China
| | - Jinming Hu
- CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China 96 Jinzhai Road Hefei, Anhui Province 230026 China
| | - Shiyong Liu
- CAS Key Laboratory of Soft Matter Chemistry Department of Polymer Science and Engineering University of Science and Technology of China 96 Jinzhai Road Hefei, Anhui Province 230026 China
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6
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Cen J, Ye X, Liu X, Pan W, Zhang L, Zhang G, He N, Shen A, Hu J, Liu S. Fluorinated Copolypeptide‐Stabilized Microbubbles with Maleimide‐Decorated Surfaces as Long‐Term Ultrasound Contrast Agents. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jie Cen
- China University of Science and Technology Department of Polymer Science and Engineering CHINA
| | - Xianjun Ye
- China University of Science and Technology Department of Ultrasound Imaging CHINA
| | - Xiao Liu
- China University of Science and Technology Department of Ultrasound Imaging CHINA
| | - Wenhao Pan
- China University of Science and Technology Department of Polymer Science and Engineering CHINA
| | - Lei Zhang
- China University of Science and Technology Department of Pharmacy CHINA
| | - Guoying Zhang
- China University of Science and Technology Department of Polymer Science and Engineering CHINA
| | - Nianan He
- China University of Science and Technology Department of Ultrasound Imaging CHINA
| | - Aizong Shen
- China University of Science and Technology Department of Pharmacy CHINA
| | - Jinming Hu
- China University of Science and Technology Department of Polymer Science and Engineering 96 Jinzhai RoadDepartment of Polymer Science and EngineeringUniversity of Science and Technology of China 230026 Hefei CHINA
| | - Shiyong Liu
- University of Science and Technology of China Department of Polymer Science and Engineering 96 Jinzhai Road 230026 Hefei CHINA
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7
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Wang Y, Feng Y, Yang X, Wang W, Wang Y. Diagnosis of Atherosclerotic Plaques Using Vascular Endothelial Growth Factor Receptor-2 Targeting Antibody Nano-microbubble as Ultrasound Contrast Agent. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:6524592. [PMID: 35572831 PMCID: PMC9098277 DOI: 10.1155/2022/6524592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/22/2022] [Accepted: 03/29/2022] [Indexed: 01/27/2023]
Abstract
The atherosclerotic plaque is characterized by narrowing of blood vessels and reduced blood flow leading to the insufficient blood supply to the brain. The hemodynamic changes caused by arterial stenosis increase the shearing force of the fibrous cap on the surface of the plaque, thereby reducing the stability of the plaque. Unstable plaques are more likely to promote angiogenesis and increase the risk of patients with cerebrovascular diseases. A timely understanding of the formation and stability of the arterial plaque can guide in taking targeted measures for reducing the risk of acute stroke in patients. It has been confirmed that nano-microbubbles can enter these plaques through the gaps in the patient's vascular endothelial cells, thereby enhancing the acquisition of ultrasound information for plaque visualization. Therefore, we aim to investigate the diagnostic value of targeted nano-microbubbles for atherosclerotic plaques. This study constructed vascular endothelial growth factor receptor-2 (VEGFR-2) targeting antibody nano-microbubbles and compared its diagnostic value with that of blank nano-microbubbles for atherosclerotic plaques. Studies have found that VEGFR-2 targeting antibody nano-microbubbles can accurately detect the position of plaques. Its detection rate, sensitivity, and specificity for plaques are higher than those of blank nano-microbubbles. Similarly, the peak intensity and average transit time of VEGFR-2 targeting antibody nano-microbubbles were greater than those of blank nano-microbubbles. Therefore, we believe that the combination of VEGFR-2 antibody and nano-microbubbles can enhance the acquisition of ultrasound information on atherosclerotic plaque neovascularization, thereby improving the early diagnosis of unstable plaque.
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Affiliation(s)
- Yi Wang
- Department of Ultrasonography, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei, China
| | - Yujin Feng
- Department of Ultrasonography, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei, China
| | - Xiaoyun Yang
- Department of Ultrasonography, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei, China
| | - Wengang Wang
- Department of Ultrasonography, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei, China
| | - Yueheng Wang
- Department of Ultrasonography, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000 Hebei, China
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Pathak V, Roemhild K, Schipper S, Groß-Weege N, Nolte T, Ruetten S, Buhl EM, El Shafei A, Weiler M, Martin L, Marx G, Schulz V, Kiessling F, Lammers T, Koczera P. Theranostic Trigger-Responsive Carbon Monoxide-Generating Microbubbles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200924. [PMID: 35363403 DOI: 10.1002/smll.202200924] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Carbon monoxide (CO) is a gaseous signaling molecule that modulates inflammation, cell survival, and recovery after myocardial infarction. However, handling and dosing of CO as a compressed gas are difficult. Here, light-triggerable and magnetic resonance imaging (MRI)-detectable CO release from dimanganese decacarbonyl (CORM-1) are demonstrated, and the development of CORM-1-loaded polymeric microbubbles (COMB) is described as an ultrasound (US)- and MRI-imageable drug delivery platform for triggerable and targeted CO therapy. COMB are synthesized via a straightforward one-step loading protocol, present a narrow size distribution peaking at 2 µm, and show excellent performance as a CORM-1 carrier and US contrast agent. Light irradiation of COMB induces local production and release of CO, as well as enhanced longitudinal and transversal relaxation rates, enabling MRI monitoring of CO delivery. Proof-of-concept studies for COMB-enabled light-triggered CO release show saturation of hemoglobin with CO in human blood, anti-inflammatory differentiation of macrophages, reduction of hypoxia-induced reactive oxygen species (ROS) production, and inhibition of ischemia-induced apoptosis in endothelial cells and cardiomyocytes. These findings indicate that CO-generating MB are interesting theranostic tools for attenuating hypoxia-associated and ROS-mediated cell and tissue damage in cardiovascular disease.
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Affiliation(s)
- Vertika Pathak
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Karolin Roemhild
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
- Institute of Pathology, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Sandra Schipper
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
- Department of General, Visceral and Transplantation Surgery, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Nicolas Groß-Weege
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Teresa Nolte
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Stephan Ruetten
- Electron Microscopy, Institute of Pathology, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Eva Miriam Buhl
- Electron Microscopy, Institute of Pathology, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Asmaa El Shafei
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Marek Weiler
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Lukas Martin
- Department of Intensive Care Medicine, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Gernot Marx
- Department of Intensive Care Medicine, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Volkmar Schulz
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
- Department of Pharmaceutics, Utrecht University, Utrecht, 3584CG, The Netherlands
- Department of Targeted Therapeutics, University of Twente, Enschede, 7522 NB, The Netherlands
| | - Patrick Koczera
- Institute for Experimental Molecular Imaging, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
- Department of Intensive Care Medicine, Medical Faculty, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University Clinic, 52074, Aachen, Germany
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9
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Delaney LJ, Isguven S, Eisenbrey JR, Hickok NJ, Forsberg F. Making waves: how ultrasound-targeted drug delivery is changing pharmaceutical approaches. MATERIALS ADVANCES 2022; 3:3023-3040. [PMID: 35445198 PMCID: PMC8978185 DOI: 10.1039/d1ma01197a] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 02/23/2022] [Indexed: 05/06/2023]
Abstract
Administration of drugs through oral and intravenous routes is a mainstay of modern medicine, but this approach suffers from limitations associated with off-target side effects and narrow therapeutic windows. It is often apparent that a controlled delivery of drugs, either localized to a specific site or during a specific time, can increase efficacy and bypass problems with systemic toxicity and insufficient local availability. To overcome some of these issues, local delivery systems have been devised, but most are still restricted in terms of elution kinetics, duration, and temporal control. Ultrasound-targeted drug delivery offers a powerful approach to increase delivery, therapeutic efficacy, and temporal release of drugs ranging from chemotherapeutics to antibiotics. The use of ultrasound can focus on increasing tissue sensitivity to the drug or actually be a critical component of the drug delivery. The high spatial and temporal resolution of ultrasound enables precise location, targeting, and timing of drug delivery and tissue sensitization. Thus, this noninvasive, non-ionizing, and relatively inexpensive modality makes the implementation of ultrasound-mediated drug delivery a powerful method that can be readily translated into the clinical arena. This review covers key concepts and areas applied in the design of different ultrasound-mediated drug delivery systems across a variety of clinical applications.
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Affiliation(s)
- Lauren J Delaney
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
| | - Selin Isguven
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street Philadelphia PA 19107 USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
| | - Noreen J Hickok
- Department of Orthopaedic Surgery, Thomas Jefferson University, 1015 Walnut Street Philadelphia PA 19107 USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University 132 S. 10th Street, Main 763 Philadelphia PA 19107 USA +1 (215) 955-4870
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10
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Hwang M, Chattaraj R, Sridharan A, Shin SS, Viaene AN, Haddad S, Khrichenko D, Sehgal C, Lee D, Kilbaugh TJ. Can Ultrasound-Guided Xenon Delivery Provide Neuroprotection in Traumatic Brain Injury? Neurotrauma Rep 2022; 3:97-104. [PMID: 35317306 PMCID: PMC8935480 DOI: 10.1089/neur.2021.0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Traumatic brain injury (TBI) is associated with high mortality and morbidity in children and adults. Unfortunately, there is no effective management for TBI in the acute setting. Rodent studies have shown that xenon, a well-known anesthetic gas, can be neuroprotective when administered post-TBI. Gas inhalation therapy, however, the approach typically used for administering xenon, is expensive, inconvenient, and fraught with systemic side effects. Therapeutic delivery to the brain is minimal, with much of the inhaled gas cleared by the lungs. To bridge major gaps in clinical care and enhance cerebral delivery of xenon, this study introduces a novel xenon delivery technique, utilizing microbubbles, in which a high impulse ultrasound signal is used for targeted cerebral release of xenon. Briefly, an ultrasound pulse is applied along the carotid artery at the level of the neck on intravenous injection of xenon microbubbles (XeMBs) resulting in release of xenon from microbubbles into the brain. This delivery technique employs a hand-held, portable ultrasound system that could be adopted in resource-limited environments. Using a high-fidelity porcine model, this study demonstrates the neuroprotective efficacy of xenon microbubbles in TBI for the first time.
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Affiliation(s)
- Misun Hwang
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Rajarshi Chattaraj
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Anush Sridharan
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Samuel S. Shin
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Angela N. Viaene
- Department of Pathology, and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sophie Haddad
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Dmitry Khrichenko
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Chandra Sehgal
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Todd J. Kilbaugh
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
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11
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Jin J, Li M, Li J, Li B, Duan L, Yang F, Gu N. Xenon Nanobubbles for the Image-Guided Preemptive Treatment of Acute Ischemic Stroke via Neuroprotection and Microcirculatory Restoration. ACS APPLIED MATERIALS & INTERFACES 2021; 13:43880-43891. [PMID: 34493044 DOI: 10.1021/acsami.1c06014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Early lesion site diagnosis and neuroprotection are crucial to the theranostics of acute ischemic stroke. Xenon (Xe), as a nontoxic gaseous neuroprotectant, holds great promise for ischemic stroke therapy. In this study, Xe-encapsulated lipid nanobubbles (Xe-NBs) have been prepared for the real-time ultrasound image-guided preemptive treatment of the early stroke. The lipids are self-assembled at the interface of free Xe bubbles, and the mean diameter of Xe-NBs is 225 ± 11 nm with a Xe content of 73 ± 2 μL/mL. The in vitro results show that Xe-NBs can protect oxygen/glucose-deprived PC12 cells against apoptosis and oxidative stress. Based on the ischemic stroke mice model, the biodistribution, timely ultrasound imaging, and the therapeutic effects of Xe-NBs for stroke lesions were investigated in vivo. The accumulation of Xe-NBs to the ischemic lesion endows ultrasound contrast imaging with the lesion area. The cerebral blood flow measurement indicates that the administration of Xe-NBs can improve microcirculatory restoration, resulting in reduced acute microvascular injury in the lesion area. Furthermore, local delivery of therapeutic Xe can significantly reduce the volume of cerebral infarction and restore the neurological function with reduced neuron injury against apoptosis. Therefore, Xe-NBs provide a novel nanosystem for the safe and rapid theranostics of acute ischemic stroke, which is promising to translate into the clinical management of stroke.
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Affiliation(s)
- Juan Jin
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211166, P. R. China
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Mei Li
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211166, P. R. China
- The Laboratory Center for Basic Medical Sciences, Nanjing Medical University, Nanjing 211166, P. R. China
| | - Jing Li
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Bin Li
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Lei Duan
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211166, P. R. China
| | - Fang Yang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
| | - Ning Gu
- School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing 211166, P. R. China
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, P. R. China
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12
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Chattaraj R, Hammer DA, Lee D, Sehgal CM. Multivariable Dependence of Acoustic Contrast of Fluorocarbon and Xenon Microbubbles under Flow. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:2676-2691. [PMID: 34112553 PMCID: PMC8355047 DOI: 10.1016/j.ultrasmedbio.2021.04.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 04/21/2021] [Accepted: 04/25/2021] [Indexed: 06/12/2023]
Abstract
Microbubbles (MBs) are 1 to 10 µm gas particles stabilized by an amphiphilic shell capable of responding to biomedical ultrasound with strong acoustic signals, allowing them to be commonly used in ultrasound imaging and therapy. The composition of both the shell and the core determines their stability and acoustic properties. While there has been extensive characterization of the dissolution, oscillation, cavitation, collapse and therefore, ultrasound contrast of MBs under static conditions, few reports have examined such behavior under hydrodynamic flow. In this study, we evaluate the interplay of ultrasound parameters (five different mechanical indices [MIs]), MB shell parameter (shell stiffness), type of gas (perfluorocarbon for diagnostic imaging and xenon as a therapeutic gas), and a flow parameter (flow rate) on the ultrasound signal of phospholipid-stabilized MBs flowing through a latex tube embedded in a tissue-mimicking phantom. We find that the contrast gradient (CG), a metric of the rate of decay of contrast along the length of the tube, and the contrast peak (CP), the location where the maximum contrast is reached, depend on the conditions of flow, imaging, and MB material. For instance, while the contrast near the flow inlet of the field of view is highest for a softer shell (dipalmitoylphosphatidylcholine [DPPC], C16) than for stiffer shells (distearoylphosphatidylcholine [DSPC], C18, and dibehenoylphosphatidylcholine [DBPC], C22), the contrast decay is also faster; stiffer shells provide more resistance and hence lead to slower MB dissolution/destruction. At higher flow rates, the CG is low for a fixed length of time because each MB is exposed to ultrasound for a shorter period. The CG becomes high for low flow rates, especially at high incident pressures (high MI), causing more MB destruction closer to the inlet of the field of view. Also, the CP shifts toward the inlet at low flow rates, high MIs, and low shell stiffness. We also report the first demonstration of sustained ultrasound flow imaging of a water-soluble, therapeutic gas MB (xenon). We find that an increased MB concentration is necessary for obtaining the same signal magnitude for xenon MBs. In summary, this study builds a framework depicting how multiple variables simultaneously affect the evolution of MB ultrasound contrast under flow. Depending on the MB composition, imaging conditions, transducer positioning, and image processing, building on such a framework could potentially allow for extraction of additional diagnostic information than is commonly analyzed for physiological flow.
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Affiliation(s)
- Rajarshi Chattaraj
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Daniel A Hammer
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Chandra M Sehgal
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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13
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Krafft MP, Riess JG. Therapeutic oxygen delivery by perfluorocarbon-based colloids. Adv Colloid Interface Sci 2021; 294:102407. [PMID: 34120037 DOI: 10.1016/j.cis.2021.102407] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023]
Abstract
After the protocol-related indecisive clinical trial of Oxygent, a perfluorooctylbromide/phospholipid nanoemulsion, in cardiac surgery, that often unduly assigned the observed untoward effects to the product, the development of perfluorocarbon (PFC)-based O2 nanoemulsions ("blood substitutes") has come to a low. Yet, significant further demonstrations of PFC O2-delivery efficacy have continuously been reported, such as relief of hypoxia after myocardial infarction or stroke; protection of vital organs during surgery; potentiation of O2-dependent cancer therapies, including radio-, photodynamic-, chemo- and immunotherapies; regeneration of damaged nerve, bone or cartilage; preservation of organ grafts destined for transplantation; and control of gas supply in tissue engineering and biotechnological productions. PFC colloids capable of augmenting O2 delivery include primarily injectable PFC nanoemulsions, microbubbles and phase-shift nanoemulsions. Careful selection of PFC and other colloid components is critical. The basics of O2 delivery by PFC nanoemulsions will be briefly reminded. Improved knowledge of O2 delivery mechanisms has been acquired. Advanced, size-adjustable O2-delivering nanoemulsions have been designed that have extended room-temperature shelf-stability. Alternate O2 delivery options are being investigated that rely on injectable PFC-stabilized microbubbles or phase-shift PFC nanoemulsions. The latter combine prolonged circulation in the vasculature, capacity for penetrating tumor tissues, and acute responsiveness to ultrasound and other external stimuli. Progress in microbubble and phase-shift emulsion engineering, control of phase-shift activation (vaporization), understanding and control of bubble/ultrasound/tissue interactions is discussed. Control of the phase-shift event and of microbubble size require utmost attention. Further PFC-based colloidal systems, including polymeric micelles, PFC-loaded organic or inorganic nanoparticles and scaffolds, have been devised that also carry substantial amounts of O2. Local, on-demand O2 delivery can be triggered by external stimuli, including focused ultrasound irradiation or tumor microenvironment. PFC colloid functionalization and targeting can help adjust their properties for specific indications, augment their efficacy, improve safety profiles, and expand the range of their indications. Many new medical and biotechnological applications involving fluorinated colloids are being assessed, including in the clinic. Further uses of PFC-based colloidal nanotherapeutics will be briefly mentioned that concern contrast diagnostic imaging, including molecular imaging and immune cell tracking; controlled delivery of therapeutic energy, as for noninvasive surgical ablation and sonothrombolysis; and delivery of drugs and genes, including across the blood-brain barrier. Even when the fluorinated colloids investigated are designed for other purposes than O2 supply, they will inevitably also carry and deliver a certain amount of O2, and may thus be considered for O2 delivery or co-delivery applications. Conversely, O2-carrying PFC nanoemulsions possess by nature a unique aptitude for 19F MR imaging, and hence, cell tracking, while PFC-stabilized microbubbles are ideal resonators for ultrasound contrast imaging and can undergo precise manipulation and on-demand destruction by ultrasound waves, thereby opening multiple theranostic opportunities.
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Affiliation(s)
- Marie Pierre Krafft
- University of Strasbourg, Institut Charles Sadron (CNRS), 23 rue du Loess, 67034 Strasbourg, France.
| | - Jean G Riess
- Harangoutte Institute, 68160 Ste Croix-aux-Mines, France
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14
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Lafond M, Salido NG, Haworth KJ, Hannah AS, Macke GP, Genstler C, Holland CK. Cavitation Emissions Nucleated by Definity Infused through an EkoSonic Catheter in a Flow Phantom. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:693-709. [PMID: 33349516 DOI: 10.1016/j.ultrasmedbio.2020.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/05/2020] [Accepted: 10/18/2020] [Indexed: 06/12/2023]
Abstract
The EkoSonic endovascular system has been cleared by the U.S. Food and Drug Administration for the controlled and selective infusion of physician specified fluids, including thrombolytics, into the peripheral vasculature and the pulmonary arteries. The objective of this study was to explore whether this catheter technology could sustain cavitation nucleated by infused Definity, to support subsequent studies of ultrasound-mediated drug delivery to diseased arteries. The concentration and attenuation spectroscopy of Definity were assayed before and after infusion at 0.3, 2.0 and 4.0 mL/min through the EkoSonic catheter. PCI was used to map and quantify stable and inertial cavitation as a function of Definity concentration in a flow phantom mimicking the porcine femoral artery. The 2.0 mL/min infusion rate yielded the highest surviving Definity concentration and acoustic attenuation. Cavitation was sustained throughout each 15 ms ultrasound pulse, as well as throughout the 3 min infusion. These results demonstrate a potential pathway to use cavitation nucleation to promote drug delivery with the EkoSonic endovascular system.
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Affiliation(s)
- Maxime Lafond
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, Ohio, USA.
| | - Nuria G Salido
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, Ohio, USA
| | - Kevin J Haworth
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, Ohio, USA; Department of Biomedical Engineering, University of Cincinnati, Cincinnati, Ohio, USA
| | | | - Gregory P Macke
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, Ohio, USA
| | | | - Christy K Holland
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, Ohio, USA; Department of Biomedical Engineering, University of Cincinnati, Cincinnati, Ohio, USA
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15
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Lingling XMM, Yihan CMM, Qiaofeng JP, Li ZMD, Wenpei FBS, Shan LMM, Ling LBS, Rui WBS, Dandan CMM, Zhengyang HMM, Mingxing XMD, Yali YMD. Targeted Delivery of Therapeutic Gas by Microbubbles. ADVANCED ULTRASOUND IN DIAGNOSIS AND THERAPY 2021. [DOI: 10.37015/audt.2021.200059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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16
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Cimorelli M, Flynn MA, Angel B, Reimold E, Fafarman A, Huneke R, Kohut A, Wrenn S. A Voltage-Sensitive Ultrasound Enhancing Agent for Myocardial Perfusion Imaging in a Rat Model. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:2388-2399. [PMID: 32593498 DOI: 10.1016/j.ultrasmedbio.2020.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 05/13/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Echocardiographers with specialized expertise sometimes perform myocardial perfusion imaging using U.S. Food and Drug Administration-approved microbubbles in an off-label capacity, correlating microbubble replenishment in the near field with blood flow through the myocardium. This study reports the in vivo clinical feasibility of a voltage-sensitive ultrasound enhancing agent (UEA) for myocardial perfusion imaging. Four UEAs were injected into Sprague-Dawley rats while ultrasound images were collected to quantify brightness in the left ventricular (LV) cavity, septal wall, and posterior wall in systole and diastole. Formulation IV, a phase change agent nested within a negatively charged phospholipid bilayer, increased the tissue-to-cavity ratio in both systole and diastole in the septal wall, 6 dB, and in the posterior wall, 5 dB, while leaving the LV cavity at baseline. This outcome improves the signal of the myocardium relative to the LV cavity and shows promise as a myocardial perfusion UEA.
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Affiliation(s)
- Michael Cimorelli
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Michael A Flynn
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Brett Angel
- Cardiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Emily Reimold
- University Laboratory Animal Resources, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Aaron Fafarman
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Richard Huneke
- University Laboratory Animal Resources, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Andrew Kohut
- Cardiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Steven Wrenn
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA.
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17
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Cimorelli M, Flynn MA, Angel B, Fafarman A, Kohut A, Wrenn S. An Ultrasound Enhancing Agent with Nonlinear Acoustic Activity that Depends on the Presence of an Electric Field. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:2370-2387. [PMID: 32616427 DOI: 10.1016/j.ultrasmedbio.2020.04.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 03/30/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
The nonlinear acoustic properties of microbubble ultrasound enhancing agents have allowed for the development of subharmonic, second harmonic, and contrast-pulse sequence ultrasound imaging modes, which enhance the quality, reduce the noise, and improve the diagnostic capabilities of clinical ultrasound. This study details acoustic scattering responses of perfluorobutane (PFB) microbubbles, an un-nested perfluoropentane (PFP) nanoemulsion, and two nested PFP nanoemulsions-one comprising a negatively charged phospholipid bilayer and another comprising a zwitterionic phospholipid bilayer-when excited at 1 or 2.25 MHz over a peak negative pressure range of 200 kPa to 4 MPa in the absence and presence of a 1-Hz, 1-V/cm electric field. The only sample that exhibited an increase in nonlinear activity in the presence of an electric field at both excitation frequencies was the negatively charged nested PFP nanoemulsion; the most pronounced effect was observed at an excitation of 2.25 MHz. Interestingly, the application of an electric field not only increased the nonlinear acoustic activity of the negatively charged nested PFP nanoemulsion but increased it beyond that seen when the nanoemulsion is un-nested and on the same scale as PFB microbubbles.
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Affiliation(s)
- Michael Cimorelli
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Michael A Flynn
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Brett Angel
- Cardiology, Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | - Aaron Fafarman
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Andrew Kohut
- Cardiology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Steven Wrenn
- Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania, USA
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18
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Al-Jawadi S, Thakur SS. Ultrasound-responsive lipid microbubbles for drug delivery: A review of preparation techniques to optimise formulation size, stability and drug loading. Int J Pharm 2020; 585:119559. [PMID: 32574685 DOI: 10.1016/j.ijpharm.2020.119559] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/14/2020] [Accepted: 06/15/2020] [Indexed: 02/08/2023]
Abstract
Lipid-shelled microbubbles have received extensive interest to enhance ultrasound-responsive drug delivery outcomes due to their high biocompatibility. While therapeutic effectiveness of microbubbles is well established, there remain limitations in sample homogeneity, stability profile and drug loading properties which restrict these formulations from seeing widespread use in the clinical setting. In this review, we evaluate and discuss the most encouraging leads in lipid microbubble design and optimisation. We examine current applications in drug delivery for the systems and subsequently detail shell compositions and preparation strategies that improve monodispersity while retaining ultrasound responsiveness. We review how excipients and storage techniques help maximise stability and introduce different characterisation and drug loading techniques and evaluate their impact on formulation performance. The review concludes with current quality control measures in place to ensure lipid microbubbles can be reproducibly used in drug delivery.
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Affiliation(s)
- Sana Al-Jawadi
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand
| | - Sachin S Thakur
- School of Pharmacy, Faculty of Medical and Health Sciences, The University of Auckland, Auckland, New Zealand.
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19
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Pouliopoulos AN, Jimenez DA, Frank A, Robertson A, Zhang L, Kline-Schoder AR, Bhaskar V, Harpale M, Caso E, Papapanou N, Anderson R, Li R, Konofagou EE. Temporal stability of lipid-shelled microbubbles during acoustically-mediated blood-brain barrier opening. FRONTIERS IN PHYSICS 2020; 8:137. [PMID: 32457896 PMCID: PMC7250395 DOI: 10.3389/fphy.2020.00137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Non-invasive blood-brain barrier (BBB) opening using focused ultrasound (FUS) is being tested as a means to locally deliver drugs into the brain. Such FUS therapies require injection of preformed microbubbles, currently used as contrast agents in ultrasound imaging. Although their behavior during exposure to imaging sequences has been well described, our understanding of microbubble stability within a therapeutic field is still not complete. Here, we study the temporal stability of lipid-shelled microbubbles during therapeutic FUS exposure in two timescales: the short time scale (i.e., μs of low-frequency ultrasound exposure) and the long time scale (i.e., days post-activation). We first simulated the microbubble response to low-frequency sonication, and found a strong correlation between viscosity and fragmentation pressure. Activated microbubbles had a concentration decay constant of 0.02 d-1 but maintained a quasi-stable size distribution for up to 3 weeks (< 10% variation). Microbubbles flowing through a 4-mm vessel within a tissue-mimicking phantom (5% gelatin) were exposed to therapeutic pulses (fc: 0.5 MHz, peak-negative pressure: 300 kPa, pulse length: 1 ms, pulse repetition frequency: 1 Hz, n=10). We recorded and analyzed their acoustic emissions, focusing on emitted energy and its temporal evolution, alongside the frequency content. Measurements were repeated with concentration-matched samples (107 microbubbles/ml) on day 0, 7, 14, and 21 after activation. Temporal stability decreased while inertial cavitation response increased with storage time both in vitro and in vivo, possibly due to changes in the shell lipid content. Using the same parameters and timepoints, we performed BBB opening in a mouse model (n=3). BBB opening volume measured through T1-weighted contrast-enhanced MRI was equal to 19.1 ± 7.1 mm3, 21.8 ± 14 mm3, 29.3 ± 2.5 mm3, and 38 ± 20.1 mm3 on day 0, 7, 14, and 21, respectively, showing no significant difference over time (p-value: 0.49). Contrast enhancement was 24.9 ± 1.7 %, 23.7 ± 11.7 %, 28.9 ± 5.3 %, and 35 ± 13.4 %, respectively (p-value: 0.63). In conclusion, the in-house made microbubbles studied here maintain their capacity to produce similar therapeutic effects over a period of 3 weeks after activation, as long as the natural concentration decay is accounted for. Future work should focus on stability of commercially available microbubbles and tailoring microbubble shell properties towards therapeutic applications.
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Affiliation(s)
| | - Daniella A. Jimenez
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Alexander Frank
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Alexander Robertson
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Lin Zhang
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Alina R. Kline-Schoder
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Vividha Bhaskar
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Mitra Harpale
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Elizabeth Caso
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Nicholas Papapanou
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Rachel Anderson
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Rachel Li
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
| | - Elisa E. Konofagou
- Department of Biomedical Engineering, Columbia University, New York City, New York 10032, USA
- Department of Radiology, Columbia University, New York City, New York 10032, USA
- Correspondence: Elisa E. Konofagou 351 Engineering Terrace, 1210 Amsterdam Avenue Mail Code: 8904, New York, NY, USA 10027 Phone: 212-342-0863, 212-854-9661
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20
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Chattaraj R, Hwang M, Zemerov SD, Dmochowski IJ, Hammer DA, Lee D, Sehgal CM. Ultrasound Responsive Noble Gas Microbubbles for Applications in Image-Guided Gas Delivery. Adv Healthc Mater 2020; 9:e1901721. [PMID: 32207250 PMCID: PMC7457952 DOI: 10.1002/adhm.201901721] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 02/13/2020] [Accepted: 02/21/2020] [Indexed: 12/18/2022]
Abstract
Noble gases, especially xenon (Xe), have been shown to have antiapoptotic effects in treating hypoxia ischemia related injuries. Currently, in vivo gas delivery is systemic and performed through inhalation, leading to reduced efficacy at the injury site. This report provides a first demonstration of the encapsulation of pure Xe, Ar, or He in phospholipid-coated sub-10 µm microbubbles, without the necessity of stabilizing perfluorocarbon additives. Optimization of shell compositions and preparation techniques show that distearoylphosphatidylcholine (DSPC) with DSPE-PEG5000 can produce stable microbubbles upon shaking, while dibehenoylphosphatidylcholine (DBPC) blended with either DSPE-PEG2000 or DSPE-PEG5000 produces a high yield of microbubbles via a sonication/centrifugation method. Xe and Ar concentrations released into the microbubble suspension headspace are measured using GC-MS, while Xe released directly in solution is detected by the fluorescence quenching of a Xe-sensitive cryptophane molecule. Bubble production is found to be amenable to scale-up while maintaining their size distribution and stability. Excellent ultrasound contrast is observed in a phantom for several minutes under physiological conditions, while an intravenous administration of a bolus of pure Xe microbubbles provides significant contrast in a mouse in pre- and post-lung settings (heart and kidney, respectively), paving the way for image-guided, localized gas delivery for theranostic applications.
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Affiliation(s)
- Rajarshi Chattaraj
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Misun Hwang
- Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104, United States; Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania 19104, United States
| | - Serge D. Zemerov
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Ivan J Dmochowski
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Daniel A. Hammer
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Daeyeon Lee
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Chandra M. Sehgal
- Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, Pennsylvania 19104, United States
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21
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Lafond M, Shekhar H, Panmanee W, Collins SD, Palaniappan A, McDaniel CT, Hassett DJ, Holland CK. Bactericidal Activity of Lipid-Shelled Nitric Oxide-Loaded Microbubbles. Front Pharmacol 2020; 10:1540. [PMID: 32082143 PMCID: PMC7002315 DOI: 10.3389/fphar.2019.01540] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 11/27/2019] [Indexed: 12/14/2022] Open
Abstract
The global pandemic of antibiotic resistance is an ever-burgeoning public health challenge, motivating the development of adjunct bactericidal therapies. Nitric oxide (NO) is a potent bioactive gas that induces a variety of therapeutic effects, including bactericidal and biofilm dispersion properties. The short half-life, high reactivity, and rapid diffusivity of NO make therapeutic delivery challenging. The goal of this work was to characterize NO-loaded microbubbles (MB) stabilized with a lipid shell and to assess the feasibility of antibacterial therapy in vitro. MB were loaded with either NO alone (NO-MB) or with NO and octafluoropropane (NO-OFP-MB) (9:1 v/v and 1:1 v/v). The size distribution and acoustic attenuation coefficient of NO-MB and NO-OFP-MB were measured. Ultrasound-triggered release of the encapsulated gas payload was demonstrated with 3-MHz pulsed Doppler ultrasound. An amperometric microelectrode sensor was used to measure NO concentration released from the MB and compared to an NO-OFP-saturated solution. The effect of NO delivery on the viability of planktonic (free living) Staphylococcus aureus (SA) USA 300, a methicillin-resistant strain, was evaluated in a 96 well-plate format. The co-encapsulation of NO with OFP increased the total volume and attenuation coefficient of MB. The NO-OFP-MB were destroyed with a clinical ultrasound scanner with an output of 2.48 MPa peak negative pressure (in situ MI of 1.34) but maintained their echogenicity when exposed to 0.02 MPa peak negative pressure (in situ MI of 0.01. The NO dose in NO-MB and NO-OFP-MB was more than 2-fold higher than the NO-OFP-saturated solution. Delivery of NO-OFP-MB increased bactericidal efficacy compared to the NO-OFP-saturated solution or air and OFP-loaded MB. These results suggest that encapsulation of NO with OFP in lipid-shelled MB enhances payload delivery. Furthermore, these studies demonstrate the feasibility and limitations of NO-OFP-MB for antibacterial applications.
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Affiliation(s)
- Maxime Lafond
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, OH, United States
| | - Himanshu Shekhar
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, OH, United States
| | - Warunya Panmanee
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Sydney D. Collins
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, OH, United States
| | - Arunkumar Palaniappan
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, OH, United States
| | - Cameron T. McDaniel
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Daniel J. Hassett
- Department of Molecular Genetics, Biochemistry and Microbiology, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Christy K. Holland
- Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati, Cincinnati, OH, United States
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, United States
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