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Liu R, Shi D, Guo L, Xiao S, Shang M, Sun X, Meng D, Zhao Y, Wang X, Li J. Ultrasound-Targeted Microbubble Disruption with Key Nanodroplets for Effective Ferroptosis in Triple-Negative Breast Cancer Using Animal Model. Int J Nanomedicine 2023; 18:2037-2052. [PMID: 37155504 PMCID: PMC10122866 DOI: 10.2147/ijn.s400495] [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] [Received: 12/06/2022] [Accepted: 04/13/2023] [Indexed: 05/10/2023] Open
Abstract
Introduction Triple-negative breast cancer (TNBC) is known to be the most aggressive form of breast cancer. Due to its high recurrence and mortality rates, the treatment of TNBC is a significant challenge for the medical community. Besides, ferroptosis is an emerging regulatory cell death that may provide new insights into the treatment of TNBC. As a central inhibitor of the ferroptosis process, the selenoenzyme glutathione peroxidase 4 (GPX4) is its classical therapeutic target. However, inhibition of GPX4 expression is quite detrimental to normal tissues. Ultrasound contrast agents, as an emerging visualization precision treatment, may provide a solution to the existing problem. Methods In this study, nanodroplets (NDs) carrying simvastatin (SIM) were constructed using the homogeneous/emulsification method. Then, the characterization of SIM-NDs was systematically evaluated. Meanwhile, in this study, the ability of SIM-NDs combined with ultrasound-targeted microbubble disruption (UTMD) to initiate ferroptosis and its respective mechanisms of ferroptosis induction were verified. Finally, the antitumor activity of SIM-NDs was investigated in vitro and in vivo using MDA-MB-231 cells and TNBC animal models. Results SIM-NDs exhibited excellent pH- and ultrasound-responsive drug release and noticeable ultrasonographic imaging ability, also showing good biocompatibility and biosafety. UTMD could promote increased intracellular reactive oxygen species and consume intracellular glutathione. However, SIM-NDs were efficiently internalized into cells under ultrasound irradiation, followed by the rapid release of SIM, which inhibited intracellular mevalonate production, and synergistically downregulated GPX4 expression, thereby promoting ferroptosis. Moreover, this combined treatment demonstrated strong antitumor ability in vitro and in vivo. Conclusion The combination of UTMD and SIM-NDs presents a promising avenue for harnessing ferroptosis in the treatment of malignant tumors.
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Affiliation(s)
- Rui Liu
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Dandan Shi
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Lu Guo
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Shan Xiao
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Mengmeng Shang
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Xiao Sun
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Dong Meng
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Yading Zhao
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Xiaoxuan Wang
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
| | - Jie Li
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China
- Correspondence: Jie Li, Department of Ultrasound, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China, Email
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Karole A, Parvez S, Thakur RS, Mudavath SL. Effervescent based nano-gas carrier enhanced the bioavailability of poorly aqueous soluble drug: A comprehensive mechanistic understanding. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chabouh G, Dollet B, Quilliet C, Coupier G. Spherical oscillations of encapsulated microbubbles: Effect of shell compressibility and anisotropy. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2021; 149:1240. [PMID: 33639825 DOI: 10.1121/10.0003500] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
We introduce a model that describes spherical oscillations of encapsulated microbubbles in an unbounded surrounding fluid. A Rayleigh-Plesset-like equation is derived by coupling the Navier-Stokes equation that describes fluid dynamics with the Navier equation that describes solid dynamics via the internal/external boundary conditions. While previous models were restricted to incompressible isotropic shells, the solid shell is modeled here as a compressible viscoelastic isotropic material and then generalized to an anisotropic material. The exact value of the resonance frequency is calculated analytically, and the damping constant is computed in the approximation of weak damping. A correction of the widely used Church model for incompressible shells is evidenced, and the effects of shell compressibility and anisotropy are discussed.
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Affiliation(s)
- Georges Chabouh
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France
| | - Benjamin Dollet
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France
| | | | - Gwennou Coupier
- Université Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France
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Abou-Saleh RH, Delaney A, Ingram N, Batchelor DVB, Johnson BRG, Charalambous A, Bushby RJ, Peyman SA, Coletta PL, Markham AF, Evans SD. Freeze-Dried Therapeutic Microbubbles: Stability and Gas Exchange. ACS APPLIED BIO MATERIALS 2020; 3:7840-7848. [DOI: 10.1021/acsabm.0c00982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Radwa H. Abou-Saleh
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
- Biophysics Group, Department of Physics, Faculty of Science, Mansoura University, Mansoura 35511, Egypt
| | - Aileen Delaney
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
| | - Nicola Ingram
- Leeds Institute of Medical Research, Wellcome Trust Brenner
Building, St. James’s University Hospital, Leeds LS9 7TF, U.K
| | - Damien V. B. Batchelor
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
| | - Benjamin R. G. Johnson
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
| | - Antonia Charalambous
- Leeds Institute of Medical Research, Wellcome Trust Brenner
Building, St. James’s University Hospital, Leeds LS9 7TF, U.K
| | - Richard J. Bushby
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
- School of Chemistry, University of Leeds, Leeds LS2 9JT, U.K
| | - Sally A. Peyman
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
- Leeds Institute of Medical Research, Wellcome Trust Brenner
Building, St. James’s University Hospital, Leeds LS9 7TF, U.K
| | - P. Louise Coletta
- Leeds Institute of Medical Research, Wellcome Trust Brenner
Building, St. James’s University Hospital, Leeds LS9 7TF, U.K
| | - Alexander F. Markham
- Leeds Institute of Medical Research, Wellcome Trust Brenner
Building, St. James’s University Hospital, Leeds LS9 7TF, U.K
| | - Stephen D. Evans
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
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UTMD inhibit EMT of breast cancer through the ROS/miR-200c/ZEB1 axis. Sci Rep 2020; 10:6657. [PMID: 32313093 PMCID: PMC7170845 DOI: 10.1038/s41598-020-63653-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 03/30/2020] [Indexed: 02/08/2023] Open
Abstract
As a potential drug/gene delivery system, the ultrasound-targeted microbubble destruction (UTMD) system can be used as a vehicle as well as increasing the permeability of biological barriers to enhance the effect of tumor treatment. However, the effect of UTMD in the tumor EMT process is unknown. In this study, we aimed to investigate the potential and mechanism of UTMD induced oxidative stress in inhibiting EMT of breast cancer. Human breast MDA231 cells were treated with microbubble (MB), ultrasound (US) and UTMD, respectively. The generation of oxidative stress, the levels of miR-200c, ZEB1 and vimentin, and the numbers of migratory cells were evaluated quantitatively and qualitatively by the measurement of intracellular reactive oxygen species (ROS), qRT-PCR, western blot assay, and transwell assay. Then, to evaluate the role of UTMD-induced oxidative stress and miR-200c in the epithelial-mesenchymal transition (EMT) inhibition, the ROS scavenger N-acetyl-L-cysteine (NAC) and miR-200c inhibitor were used before UTMD treatment. We found that UTMD induced oxidative stress, upregulated the expression of miR-200c, downregulated the expression of ZEB1 and vimentin and suppressed the MDA231 cell migration. The addition of NAC and miR-200c inhibitor had an opposite impact on the expression of miR-200c and ZEB1, thus hindered the effects of UTMD on MDA231 cells EMT. In conclusion, UTMD can inhibit the EMT characteristics of MDA231 cells. The mechanism may be related to the regulation of the miR-200c/ZEB1 axis through the generation of ROS induced by UTMD, which may provide a new strategy to prevent the tumor cells EMT under UTMD treatment.
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McClements J, Koutsos V. Thin Polymer Film Force Spectroscopy: Single Chain Pull-out and Desorption. ACS Macro Lett 2020; 9:152-157. [PMID: 35638675 DOI: 10.1021/acsmacrolett.9b00894] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Atomic force microscopy (AFM) was utilized to investigate the force associated with chain pull-out and single chain desorption of poly(styrene-co-butadiene) random copolymer thin films on mica, silicon, and graphite substrates. Chain pull-out events were common and produced a force of 20-25 pN. The polymer desorption force was strongest on the graphite substrate and weakest on the mica, which agreed with the calculated work of adhesion for each system and the substrate hydrophobicity. Furthermore, it was demonstrated that there was a systematic order to when each of these phenomena occurred during the tip retraction from the surface, which provided information about the structure of the thin films.
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Affiliation(s)
- Jake McClements
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Sanderson Building, King’s Buildings, Edinburgh EH9 3FB, United Kingdom
| | - Vasileios Koutsos
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Sanderson Building, King’s Buildings, Edinburgh EH9 3FB, United Kingdom
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