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Cao E, Greillier P, Loyet R, Chavrier F, Robert J, Bessière F, Dillenseger JL, Lafon C. Development of a Numerical Model of High-Intensity Focused Ultrasound Treatment in Mobile and Elastic Organs: Application to a Beating Heart. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:1215-1228. [PMID: 35430101 DOI: 10.1016/j.ultrasmedbio.2022.02.017] [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: 07/29/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
High-intensity focused ultrasound (HIFU) is a promising method used to treat cardiac arrhythmias, as it can induce lesions at a distance throughout myocardium thickness. Numerical modeling is commonly used for ultrasound probe development and optimization of HIFU treatment strategies. This study was aimed at describing a numerical method to simulate HIFU thermal ablation in elastic and mobile heart models. The ultrasound pressure field is computed on a 3-D orthonormal grid using the Rayleigh integral method, and the attenuation is calculated step by step between cells. The temperature distribution is obtained by resolution of the bioheat transfer equation on a 3-D non-orthogonally structured curvilinear grid using the finite-volume method. The simulation method is applied on two regions of the heart (atrioventricular node and ventricular apex) to compare the thermal effects of HIFU ablation depending on deformation, motion type and amplitude. The atrioventricular node requires longer sonication than the ventricular apex to reach the same lesion volume. Motion considerably influences treatment duration, lesion shape and distribution in cardiac HIFU treatment. These results emphasize the importance of considering local motion and deformation in numerical studies to define efficient and accurate treatment strategies.
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Affiliation(s)
- Elodie Cao
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ Lyon, F-69003, LYON, France..
| | - Paul Greillier
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ Lyon, F-69003, LYON, France
| | - Raphaël Loyet
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ Lyon, F-69003, LYON, France
| | - Françoise Chavrier
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ Lyon, F-69003, LYON, France
| | - Jade Robert
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ Lyon, F-69003, LYON, France
| | - Francis Bessière
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ Lyon, F-69003, LYON, France.; Hospices Civils de Lyon, Hôpital Cardiovasculaire Louis Pradel, Lyon, France
| | | | - Cyril Lafon
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ Lyon, F-69003, LYON, France
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Fant C, Granzotto A, Mestas JL, Ngo J, Lafond M, Lafon C, Foray N, Padilla F. DNA Double-Strand Breaks in Murine Mammary Tumor Cells Induced by Combined Treatment with Doxorubicin and Controlled Stable Cavitation. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:2941-2957. [PMID: 34315620 DOI: 10.1016/j.ultrasmedbio.2021.05.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/28/2021] [Accepted: 05/31/2021] [Indexed: 06/13/2023]
Abstract
Chemotherapeutic agents such as doxorubicin induce cell cytotoxicity through induction of DNA double-strand breaks. Recent studies have reported the occurrence of DNA double-strand breaks in different cell lines exposed to cavitational ultrasound. As ultrasound stable cavitation can potentiate the therapeutic effects of cytotoxic drugs, we hypothesized that combined treatment with unseeded stable cavitation and doxorubicin would lead to increased DNA damage and would reduce cell viability and proliferation in vitro. In this study, we describe how we determined, using 4T1 murine mammary carcinoma as a model cell line, that unseeded stable cavitation combined with doxorubicin leads to additive DNA double-strand break induction. Combined treatment with doxorubicin and unseeded stable 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 necessary to increase early DNA double-strand break induction, likely mediated by a bystander effect with release of extracellular calcium.
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Affiliation(s)
- Cécile Fant
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, Lyon, France
| | | | - Jean-Louis Mestas
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, Lyon, France
| | - Jacqueline Ngo
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, Lyon, France
| | - Maxime Lafond
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, Lyon, France
| | - Cyril Lafon
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, Lyon, France
| | | | - Frédéric Padilla
- LabTAU, INSERM, Centre Léon Bérard, Université Lyon 1, Univ-Lyon, Lyon, France; Focused Ultrasound Foundation, Charlottesville, Virginia, USA; Department of Radiology, University of Virginia School of Medicine, Charlottesville, Virginia, USA.
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Thomas GPL, Chapelon JY, Birer A, Inserra C, Lafon C. Confocal lens focused piezoelectric lithotripter. ULTRASONICS 2020; 103:106066. [PMID: 32028115 DOI: 10.1016/j.ultras.2020.106066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 12/06/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
This work focuses on the evaluation of a type of piezoelectric lithotripter with similar dimensions of a commercial lithotripter and composed of either 3 or 4 large lens focused piezoelectric transducers set either in a confocal coplanar C-shape or a confocal spherical shape. Each transducer is made with a 92 mm diameter 220 kHz flat piezoelectric ceramic disc and a 3D printed acoustic lens. Both confocal setups pressure field were measured with a fiber optic hydrophone, and in vitro fragmentations of 13 mm diameter and 14 mm length cylindrical model stones were done in a 2 mm mesh basket. The acoustic characterization of the three transducers confocal setup revealed a disc shaped focal volume, with a 2.2 mm width on one axis and a 9.6 mm width on the other, and a peak positive pressure of 40.9 MPa and a peak negative pressure of -16.9 MPa, while the focus of the four transducers confocal setup was similar to a traditional narrow focus high pressure lithotripter with a focus width of 2.1 mm, and a peak positive pressure of 71.9 MPa and peak negative pressure of -24.3 MPa. Both confocal setups showed in vitro fragmentation efficiency close to a commercial electroconductive lithotripter.
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Affiliation(s)
- Gilles P L Thomas
- INSERM, LabTAU, F-69003 Lyon, France; Université Lyon 1, Univ Lyon, F-69003 Lyon, France.
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Camus M, Vienne A, Mestas JL, Pratico C, Nicco C, Chereau C, Marie JM, Moussatov A, Renault G, Batteux F, Lafon C, Prat F. Cavitation-induced release of liposomal chemotherapy in orthotopic murine pancreatic cancer models: A feasibility study. Clin Res Hepatol Gastroenterol 2019; 43:669-681. [PMID: 31031131 DOI: 10.1016/j.clinre.2019.02.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 01/10/2019] [Accepted: 02/27/2019] [Indexed: 02/04/2023]
Abstract
UNLABELLED Targeted and triggered release of liposomal drug using ultrasound (US) induced cavitation represents a promising treatment modality to increase the therapeutic-toxicity ratio of encapsulated chemotherapy. OBJECTIVES To study the feasibility and efficacy of a combination of focused US and liposomal doxorubicin (US-L-DOX) release in orthotopic murine models of pancreatic cancer. MATERIAL AND METHODS A confocal US setup was developed to generate US inertial cavitation delivery in a controlled and reproducible manner and designed for two distinct murine orthotopic pancreatic cancer models. Controlled cavitation at 1 MHz was applied within the tumors after L-DOX injection according to a preliminary pharmacokinetic study. RESULTS In vitro studies confirmed that L-DOX was cytostatic. In vivo pharmacokinetic study showed L-DOX peak tumor accumulation at 48h. Feasibility of L-DOX injection and US delivery was demonstrated in both murine models. In a nude mouse model, at W9 after implantation (W5 after treatment), US-L-DOX group (median [IQR] 51.43 mm3 [35.1-871.95]) exhibited significantly lower tumor volumes than the sham group (216.28 [96.12-1202.92]), the US group (359.44 [131.48-1649.25]), and the L-DOX group (255.94 [84.09-943.72]), and a trend, although not statistically significant, to a lower volume than Gemcitabine group (90.48 [42.14-367.78]). CONCLUSION This study demonstrates that inertial cavitation can be generated to increase the therapeutic effect of drug-carrying liposomes accumulated in the tumor. This approach is potentially an important step towards a therapeutic application of cavitation-induced drug delivery in pancreatic cancer.
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Affiliation(s)
- Marine Camus
- Inserm U1066, institut Cochin, 75014 Paris, France; Sorbonne université, AP-HP, hôpital Saint Antoine, 75012 Paris, France.
| | | | - Jean-Louis Mestas
- LabTAU, INSERM, Centre Léon Bérard, Université-Lyon 1, Lyon, 69003, Lyon, France
| | - Carlos Pratico
- Inserm U1066, institut Cochin, 75014 Paris, France; Université Paris Descartes, hôpital Cochin, AP-HP, 75014, Paris, France
| | - Carole Nicco
- Inserm U1066, institut Cochin, 75014 Paris, France; Université Paris Descartes, hôpital Cochin, AP-HP, 75014, Paris, France
| | - Christiane Chereau
- Inserm U1066, institut Cochin, 75014 Paris, France; Université Paris Descartes, hôpital Cochin, AP-HP, 75014, Paris, France
| | - Jean-Martial Marie
- LabTAU, INSERM, Centre Léon Bérard, Université-Lyon 1, Lyon, 69003, Lyon, France
| | - Alexei Moussatov
- LabTAU, INSERM, Centre Léon Bérard, Université-Lyon 1, Lyon, 69003, Lyon, France
| | - Gilles Renault
- Inserm U1066, institut Cochin, 75014 Paris, France; Université Paris Descartes, hôpital Cochin, AP-HP, 75014, Paris, France
| | - Frederic Batteux
- Inserm U1066, institut Cochin, 75014 Paris, France; Université Paris Descartes, hôpital Cochin, AP-HP, 75014, Paris, France
| | - Cyril Lafon
- LabTAU, INSERM, Centre Léon Bérard, Université-Lyon 1, Lyon, 69003, Lyon, France
| | - Frederic Prat
- Inserm U1066, institut Cochin, 75014 Paris, France; Université Paris Descartes, hôpital Cochin, AP-HP, 75014, Paris, France
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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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Lafond M, Yoshizawa S, Umemura SI. Sonodynamic Therapy: Advances and Challenges in Clinical Translation. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2019; 38:567-580. [PMID: 30338863 DOI: 10.1002/jum.14733] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/17/2018] [Accepted: 05/26/2018] [Indexed: 05/11/2023]
Abstract
Sonodynamic therapy (SDT) consists of the synergetic interaction between ultrasound and a chemical agent. In SDT, the cytotoxicity is triggered by ultrasonic stimuli, notably through cavitation. The unique features of SDT are relevant in the clinical context more than ever: the need for efficacy, accuracy, and safety while being noninvasive and preserving the patient's quality of life. However, despite the promising results of this technique, only a few clinical reports describe the use of SDT. The objective of this article is to provide an extensive overview of the clinical and preclinical research conducted in vivo on SDT, to identify the limitations, and to detail the developed strategies to overcome them.
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Affiliation(s)
- Maxime Lafond
- Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | - Shin Yoshizawa
- Graduate School of Engineering, Tohoku University, Sendai, Japan
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Goudot G, Mirault T, Arnal B, Boisson-Vidal C, Le Bonniec B, Gaussem P, Galloula A, Tanter M, Messas E, Pernot M. Pulsed cavitational therapy using high-frequency ultrasound for the treatment of deep vein thrombosis in an in vitro model of human blood clot. ACTA ACUST UNITED AC 2017; 62:9282-9294. [DOI: 10.1088/1361-6560/aa9506] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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