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Zheng ZY, Xie G, Tan GL, Liu WL. Proteolysis modification targeting protein corona affects ultrasound-induced membrane homeostasis of saccharomyces cerevisiae: Analysis of lipid relative contributions on membrane properties. Front Microbiol 2023; 14:1082666. [PMID: 36778851 PMCID: PMC9909265 DOI: 10.3389/fmicb.2023.1082666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/09/2023] [Indexed: 01/27/2023] Open
Abstract
Introduction Protein corona (PCN) adsorbed on the surface of nanoparticles has brought new research perspectives for the interaction between nanoparticles and microorganisms. In this study, the responses of saccharomyces cerevisiae' membrane lipid composition, the average length of the fatty acyl chains and the average number of unsaturation of fatty acids to ultrasound combined with nano-Fe3O4@PCN with time-limited proteolysis (nano-Fe3O4@TLP-PCN) was investigated. Methods Lipidomic data was obtained using Ultra-high performance liquid chromatography coupled with a Q-Exactive plus mass spectrometer. The membrane potential, proton motive force assay and the membrane lipid oxidation were measured using Di-BAC4(3), DISC3(5) and C11-BODIPY581/591 as the probes. Combined with the approach of feasible virtual samples generation, the back propagation artificial neural network (BP-ANN) model was adopted to establish the mapping relationship between lipids and membrane properties. Results The time-limited proteolysis targeting wheat PCN-coated Fe3O4 nanoparticles resulted in regular changes of hydrodynamic diameters, ζ-potentials, and surface hydrophobicity. In addition, with the prolongation of PCN proteolysis time, disturbances of 3 S.cerevisiae membrane characteristics, and membrane lipidomic remodeling in response to ultrasound+ nano-Fe3O4@PCN were observed. The analysis of relative importance which followed revealed that ergosterol, phosphatidylserine, and phosphatidylinositol phosphate had the greatest influence on membrane potential. For membrane lipid oxidation, ceramide, phosphatidylethanolamine, and sitosterol ester contribute 16.2, 14.9, and 13.1%, respectively. The relative contributions of six lysolecithins to the dissipation of proton motive force remained limited. Discussion An adaptation mechanism of cell membrane to proteolyzed PCN, wherein lipidome remodeling could preserved functional membrane phenotypes was revealed. Furthermore, it is highlighted that the relative importances of SiE, Cer, PE and PIP in determining membrane potential, PMF dissipation and membrane lipid oxidation by establishing FVSG-BP-ANN model.
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Mueller EN, Alina TB, Curry SD, Ganguly S, Cha JN, Goodwin AP. Silica-coated gold nanorods with hydrophobic modification show both enhanced two-photon fluorescence and ultrasound drug release. J Mater Chem B 2022; 10:9789-9793. [PMID: 36420680 DOI: 10.1039/d2tb02197h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Hydrophobically-modified silica-coated gold nanorods are presented here as multifunctional theranostic agents. A single modification both increases two-photon fluorescence and promotes cavitation-based acoustic signal for imaging. A two-fold greater release of small molecule drugs was observed under ultrasound-mediated conditions as compared to passive release without ultrasound.
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Affiliation(s)
- Evan N Mueller
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Talaial B Alina
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Shane D Curry
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Saheli Ganguly
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Jennifer N Cha
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Andrew P Goodwin
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
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Yang Y, Wang XH, Wang J, Zhang JY, Chen W, Yang H, He P, Tang XQ, Yu JH. A New Nanoscale Ultrasound Phase-Variant Contrast Agent for Phase Variant Low-Frequency Medical Ultrasound Imaging That Can Scavenge Reactive Oxygen Species. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Nanoscale phase-variant ultrasound contrast agents have attracted the interest of many researchers. However, it is a challenge to design nanobubbles that are activated by low-frequency medical ultrasound that do not cause damage to normal tissues. In this study, we designed a new type
of nanoparticle consisting of perfluoropentane and iron polyphthalocyanine loaded into liposomes. These nanoparticles can be activated by a low-frequency medical ultrasound imager at a frequency of 5 MHz for ultrasound imaging and clear reactive oxygen species at a rate of more than 50%. This
ability to scavenge excess reactive oxygen species can alleviate the damage these species cause and protect macrophages. Moreover, these nanoparticles can effectively enhance ultrasound contrast imaging for real-time visualization in the diagnosis and treatment of diseases.
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4
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Sabuncu S, Yildirim A. Gas-stabilizing nanoparticles for ultrasound imaging and therapy of cancer. NANO CONVERGENCE 2021; 8:39. [PMID: 34851458 PMCID: PMC8636532 DOI: 10.1186/s40580-021-00287-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/05/2021] [Indexed: 05/06/2023]
Abstract
The use of ultrasound in the clinic has been long established for cancer detection and image-guided tissue biopsies. In addition, ultrasound-based methods have been widely explored to develop more effective cancer therapies such as localized drug delivery, sonodynamic therapy, and focused ultrasound surgery. Stabilized fluorocarbon microbubbles have been in use as contrast agents for ultrasound imaging in the clinic for several decades. It is also known that microbubble cavitation could generate thermal, mechanical, and chemical effects in the tissue to improve ultrasound-based therapies. However, the large size, poor stability, and short-term cavitation activity of microbubbles limit their applications in cancer imaging and therapy. This review will focus on an alternative type of ultrasound responsive material; gas-stabilizing nanoparticles, which can address the limitations of microbubbles with their nanoscale size, robustness, and high cavitation activity. This review will be of interest to researchers who wish to explore new agents to develop improved methods for molecular ultrasound imaging and therapy of cancer.
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Affiliation(s)
- Sinan Sabuncu
- CEDAR, Knight Cancer Institute, School of Medicine, Oregon Health & Science University, Portland, OR, 97201, USA
| | - Adem Yildirim
- CEDAR, Knight Cancer Institute, School of Medicine, Oregon Health & Science University, Portland, OR, 97201, USA.
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Mueller EN, Kuriakose M, Ganguly S, Ma K, Inzunza-Ibarra MA, Murray TW, Cha JN, Goodwin AP. Hydrophobically Modified Silica-Coated Gold Nanorods for Generating Nonlinear Photoacoustic Signals. ACS APPLIED NANO MATERIALS 2021; 4:12073-12082. [PMID: 38031593 PMCID: PMC10686269 DOI: 10.1021/acsanm.1c02623] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
In this work, we report that gold nanorods coated with hydrophobically-modified mesoporous silica shells not only enhance photoacoustic (PA) signal over unmodified mesoporous silica coated gold nanorods, but that the relationship between PA amplitude and input laser fluence is strongly nonlinear. Mesoporous silica shells of ~14 nm thickness and with ~3 nm pores were grown on gold nanorods showing near infrared absorption. The silica was rendered hydrophobic with addition of dodecyltrichlorosilane, then re-suspended in aqueous media with a lipid monolayer. Analysis of the PA signal revealed not only an enhancement of PA signal compared to mesoporous silica coated gold nanorods at lower laser fluences, but also a nonlinear relationship between PA signal and laser fluence. We attribute each effect to the entrapment of solvent vapor in the mesopores: the vapor has both a larger expansion coefficient and thermal resistance than silica that enhances conversion to acoustic energy, and the hydrophobic porous surface is able to promote phase transition at the surface, leading to a nonlinear PA response even at fluences as low as 5 mJ cm-2. At 21 mJ cm-2, the highest laser fluence tested, the PA enhancement was >12-fold over mesoporous silica coated gold nanorods.
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Affiliation(s)
- Evan N. Mueller
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
| | - Maju Kuriakose
- Department of Mechanical Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
| | - Saheli Ganguly
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
| | - Ke Ma
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
| | - Marco A. Inzunza-Ibarra
- Department of Mechanical Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
| | - Todd W. Murray
- Department of Mechanical Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
| | - Jennifer N. Cha
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
- Materials Science and Engineering Program, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
| | - Andrew P. Goodwin
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
- Materials Science and Engineering Program, University of Colorado, 596 UCB, Boulder, Colorado 80309, United States
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6
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Tehrani Fateh S, Moradi L, Kohan E, Hamblin MR, Shiralizadeh Dezfuli A. Comprehensive review on ultrasound-responsive theranostic nanomaterials: mechanisms, structures and medical applications. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2021; 12:808-862. [PMID: 34476167 PMCID: PMC8372309 DOI: 10.3762/bjnano.12.64] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 07/15/2021] [Indexed: 05/03/2023]
Abstract
The field of theranostics has been rapidly growing in recent years and nanotechnology has played a major role in this growth. Nanomaterials can be constructed to respond to a variety of different stimuli which can be internal (enzyme activity, redox potential, pH changes, temperature changes) or external (light, heat, magnetic fields, ultrasound). Theranostic nanomaterials can respond by producing an imaging signal and/or a therapeutic effect, which frequently involves cell death. Since ultrasound (US) is already well established as a clinical imaging modality, it is attractive to combine it with rationally designed nanoparticles for theranostics. The mechanisms of US interactions include cavitation microbubbles (MBs), acoustic droplet vaporization, acoustic radiation force, localized thermal effects, reactive oxygen species generation, sonoluminescence, and sonoporation. These effects can result in the release of encapsulated drugs or genes at the site of interest as well as cell death and considerable image enhancement. The present review discusses US-responsive theranostic nanomaterials under the following categories: MBs, micelles, liposomes (conventional and echogenic), niosomes, nanoemulsions, polymeric nanoparticles, chitosan nanocapsules, dendrimers, hydrogels, nanogels, gold nanoparticles, titania nanostructures, carbon nanostructures, mesoporous silica nanoparticles, fuel-free nano/micromotors.
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Affiliation(s)
- Sepand Tehrani Fateh
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Lida Moradi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Elmira Kohan
- Department of Science, University of Kurdistan, Kurdistan, Sanandaj, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein 2028, South Africa
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Augustine R, Mamun AA, Hasan A, Salam SA, Chandrasekaran R, Ahmed R, Thakor AS. Imaging cancer cells with nanostructures: Prospects of nanotechnology driven non-invasive cancer diagnosis. Adv Colloid Interface Sci 2021; 294:102457. [PMID: 34144344 DOI: 10.1016/j.cis.2021.102457] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 04/25/2021] [Accepted: 06/01/2021] [Indexed: 12/17/2022]
Abstract
The application of nanostructured materials in medicine is a rapidly evolving area of research that includes both the diagnosis and treatment of various diseases. Metals, metal oxides and carbon-based nanomaterials have shown much promise in medical technological advancements due to their tunable physical, chemical and biological properties. The nanoscale properties, especially the size, shape, surface chemistry and stability makes them highly desirable for diagnosing and treating various diseases, including cancers. Major applications of nanomaterials in cancer diagnosis include in vivo bioimaging and molecular marker detection, mainly as image contrast agents using modalities such as radio, magnetic resonance, and ultrasound imaging. When a suitable targeting ligand is attached on the nanomaterial surface, it can help pinpoint the disease site during imaging. The application of nanostructured materials in cancer diagnosis can help in the early detection, treatment and patient follow-up . This review aims to gather and present the information regarding the application of nanotechnology in cancer diagnosis. We also discuss the challenges and prospects regarding the application of nanomaterials as cancer diagnostic tools.
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Montoya Mira J, Wu L, Sabuncu S, Sapre A, Civitci F, Ibsen S, Esener S, Yildirim A. Gas-Stabilizing Sub-100 nm Mesoporous Silica Nanoparticles for Ultrasound Theranostics. ACS OMEGA 2020; 5:24762-24772. [PMID: 33015494 PMCID: PMC7528327 DOI: 10.1021/acsomega.0c03377] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 08/28/2020] [Indexed: 05/22/2023]
Abstract
Recent studies have demonstrated that gas-stabilizing particles can generate cavitating micron-sized bubbles when exposed to ultrasound, offering excellent application potential, including ultrasound imaging, drug delivery, and tumor ablation. However, the majority of the reported gas-stabilizing particles are relatively large (>200 nm), and smaller particles require high acoustic pressures to promote cavitation. Here, this paper reports the preparation of sub-100 nm gas-stabilizing nanoparticles (GSNs) that can initiate cavitation at low acoustic intensities, which can be delivered using a conventional medical ultrasound imaging system. The highly echogenic GSNs (F127-hMSN) were prepared by carefully engineering the surfaces of ∼50 nm mesoporous silica nanoparticles. It was demonstrated that the F127-hMSNs could be continuously imaged with ultrasound in buffer or biological solutions or agarose phantoms for up to 20 min. Also, the F127-hMSN can be stored in phosphate-buffered saline for at least a month with no loss in ultrasound responsiveness. The particles significantly degraded when diluted in simulated body fluids, indicating possible biodegradation of the F127-hMSNs in vivo. Furthermore, at ultrasound imaging conditions, F127-hMSNs did not cause detectable cell death, supporting the potential safety of these particles. Finally, strong cavitation activity generation by the F127-hMSNs under high-intensity focused ultrasound insonation was demonstrated and applied to effectively ablate cancer cells.
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Affiliation(s)
- Jose Montoya Mira
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
- Biomedical Engineering, School of Medicine, Oregon Health and Science University, Portland, Oregon 97239, United States
| | - Lucy Wu
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
| | - Sinan Sabuncu
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
| | - Ajay Sapre
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
| | - Fehmi Civitci
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
| | - Stuart Ibsen
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
- Biomedical Engineering, School of Medicine, Oregon Health and Science University, Portland, Oregon 97239, United States
| | - Sadik Esener
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
- Biomedical Engineering, School of Medicine, Oregon Health and Science University, Portland, Oregon 97239, United States
| | - Adem Yildirim
- CEDAR, Knight Cancer
Institute, School of Medicine, Oregon Health
and Science University, Portland, Oregon 97201, United States
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Walker JAT, Wang X, Peter K, Kempe K, Corrie SR. Dynamic Solid-State Ultrasound Contrast Agent for Monitoring pH Fluctuations In Vivo. ACS Sens 2020; 5:1190-1197. [PMID: 32202414 DOI: 10.1021/acssensors.0c00245] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The key challenge for in vivo biosensing is to design biomarker-responsive contrast agents that can be readily detected and monitored by broadly available biomedical imaging modalities. While a range of biosensors have been designed for optical, photoacoustic, and magnetic resonance imaging (MRI) modalities, technical challenges have hindered the development of ultrasound biosensors, even though ultrasound is widely available, portable, safe, and capable of both surface and deep tissue imaging. Typically, contrast-enhanced ultrasound imaging is generated by gas-filled microbubbles. However, they suffer from short imaging times because of the diffusion of the gas into the surrounding media. This demands an alternate approach to generate nanosensors that reveal pH-specific changes in ultrasound contrast in biological environments. Silica cores were coated with pH-responsive poly(methacrylic acid) (PMASH) in a layer-by-layer (LbL) approach and subsequently covered in a porous organosilica shell. Transmission electron microscopy (TEM) and confocal laser scanning microscopy (CLSM) were employed to monitor the successful fabrication of multilayered particles and prove the pH-dependent shrinkage/swelling of the PMASH layer. This demonstrates that reduction in pH below healthy physiological levels resulted in significant increases in ultrasound contrast, in gel phantoms, mouse cadaver tissue, and live mice. The future of such materials could be developed into a platform of biomarker-responsive ultrasound contrast agents for clinical applications.
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Affiliation(s)
- Julia Ann-Therese Walker
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Chemical Engineering, Monash University, 20 Research Way, Clayton, VIC 3800, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Xiaowei Wang
- Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
- Department of Medicine, Monash University, Melbourne 3800, Australia
| | - Karlheinz Peter
- Baker Heart and Diabetes Institute, 75 Commercial Road, Melbourne, VIC 3004, Australia
- Department of Medicine, Monash University, Melbourne 3800, Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia
- Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Simon R. Corrie
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Chemical Engineering, Monash University, 20 Research Way, Clayton, VIC 3800, Australia
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Paris JL, Vallet-Regí M. Ultrasound-Activated Nanomaterials for Therapeutics. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190346] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Juan L. Paris
- Department of Life Sciences, Nano4Health Unit, Nanomedicine Group. International Iberian Nanotechnology Laboratory (INL), Av. Mestre José Veiga s/n, 4715-330 Braga, Portugal
| | - María Vallet-Regí
- Dpto. Química en Ciencias Farmacéuticas (Unidad Docente de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28040-Madrid, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
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11
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Chen Z, Tang JH, Chen W, Xu Y, Wang H, Zhang Z, Sepehrpour H, Cheng GJ, Li X, Wang P, Sun Y, Stang PJ. Temperature- and Mechanical-Force-Responsive Self-Assembled Rhomboidal Metallacycle. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00544] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhao Chen
- Hubei Key Laboratory of Catalysis and Materials Science, College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan 430074, People’s Republic of China
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, People’s Republic of China
| | - Jian-Hong Tang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Wenzhuo Chen
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Yao Xu
- Warshel Institute for Computational Biology, School of Life and Health Science, The Chinese University of Hong Kong, Shenzhen 518172, People’s Republic of China
| | - Heng Wang
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Zhe Zhang
- Institute of Environmental Research at Greater Bay Area; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Hajar Sepehrpour
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Gui-Juan Cheng
- Warshel Institute for Computational Biology, School of Life and Health Science, The Chinese University of Hong Kong, Shenzhen 518172, People’s Republic of China
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, United States
| | - Pingshan Wang
- Institute of Environmental Research at Greater Bay Area; Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, People’s Republic of China
| | - Yue Sun
- Hubei Key Laboratory of Catalysis and Materials Science, College of Chemistry and Material Sciences, South-Central University for Nationalities, Wuhan 430074, People’s Republic of China
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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Blum NT, Gyorkos CM, Narowetz SJ, Mueller EN, Goodwin AP. Phospholipid-Coated Hydrophobic Mesoporous Silica Nanoparticles Enhance Thrombectomy by High-Intensity Focused Ultrasound with Low Production of Embolism-Inducing Clot Debris. ACS APPLIED MATERIALS & INTERFACES 2019; 11:36324-36332. [PMID: 31556582 PMCID: PMC8051144 DOI: 10.1021/acsami.9b11095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Here we report the efficacy of a nanoparticle-assisted high-intensity focused ultrasound (HIFU) treatment that selectively destroys blood clots while minimizing generation of microparticles, or microemboli, that can cause further complications postsurgery. Treatment of malignant blood clots (thrombi) and the resulting emboli are critical problems for numerous patients, and treatments addressing these conditions would benefit from advancements in noninvasive procedures such as HIFU. While recanalization of occlusive blood clots is currently addressed with surgical intervention that seeks to minimize formation of large emboli, there is a danger of microemboli (micrometer-size particles) that have been theorized to be responsible for the poor correlation between apparent surgical success and patient outcome. Here, the addition of phospholipid-coated hydrophobically modified silica nanoparticles (P@hMSNs) improved the efficacy of HIFU treatment by serving as cavitation nuclei for mechanical disruption of thrombi. This treatment was evaluated for the ability to clear the HIFU focal area of a thick and dense thrombus within 10 min. Moreover, it was found that the use of P@hMSN+HIFU treatment generated a significantly smaller microembolic load as compared to comparison techniques, including a HIFU + microbubble contrast agent, HIFU alone, and direct mechanical disruption. This reduction in the microembolic load can occur either with primary removal of the clot by P@hMSN+HIFU or by insonation of the clot fragments after mechanical thrombectomy. Lastly, this method was evaluated in a flow model, where nonocclusive model thrombi and model emboli were mechanically ablated within the focal area within 15 s. Together, these results represent a combination therapy capable of resolving thrombi and microembolisms resulting from thrombectomy through localized destruction of clotted material.
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