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Nittayacharn P, Abenojar E, Cooley MB, Berg FM, Counil C, Sojahrood AJ, Khan MS, Yang C, Berndl E, Golczak M, Kolios MC, Exner AA. Efficient ultrasound-mediated drug delivery to orthotopic liver tumors - Direct comparison of doxorubicin-loaded nanobubbles and microbubbles. J Control Release 2024; 367:135-147. [PMID: 38237687 DOI: 10.1016/j.jconrel.2024.01.028] [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: 09/14/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/28/2024]
Abstract
Liver metastasis is a major obstacle in treating aggressive cancers, and current therapeutic options often prove insufficient. To overcome these challenges, there has been growing interest in ultrasound-mediated drug delivery using lipid-shelled microbubbles (MBs) and nanobubbles (NBs) as promising strategies for enhancing drug delivery to tumors. Our previous work demonstrated the potential of Doxorubicin-loaded C3F8 NBs (hDox-NB, 280 ± 123 nm) in improving cancer treatment in vitro using low-frequency unfocused therapeutic ultrasound (TUS). In this study, we investigated the pharmacokinetics and biodistribution of sonicated hDox-NBs in orthotopic rat liver tumors. We compared their delivery and therapeutic efficiency with size-isolated MBs (hDox-MB, 1104 ± 373 nm) made from identical shell material and core gas. Results showed a similar accumulation of hDox in tumors treated with hDox-MBs and unfocused therapeutic ultrasound (hDox-MB + TUS) and hDox-NB + TUS. However, significantly increased apoptotic cell death in the tumor and fewer off-target apoptotic cells in the normal liver were found upon the treatment with hDox-NB + TUS. The tumor-to-liver apoptotic ratio was elevated 9.4-fold following treatment with hDox-NB + TUS compared to hDox-MB + TUS, suggesting that the therapeutic efficacy and specificity are significantly increased when using hDox-NB + TUS. These findings highlight the potential of this approach as a viable treatment modality for liver tumors. By elucidating the behavior of drug-loaded bubbles in vivo, we aim to contribute to developing more effective liver cancer treatments that could ultimately improve patient outcomes and decrease off-target side effects.
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Affiliation(s)
- Pinunta Nittayacharn
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA; Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Puttamonthon, Nakorn Pathom, Thailand
| | - Eric Abenojar
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA
| | - Michaela B Cooley
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Felipe M Berg
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA; Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Claire Counil
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA
| | - Amin Jafari Sojahrood
- Department of Physics, Toronto Metropolitan University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between St. Michael's Hospital, a site of Unity Health Toronto and Toronto Metropolitan University, Toronto, Canada
| | - Muhammad Saad Khan
- Department of Physics, Toronto Metropolitan University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between St. Michael's Hospital, a site of Unity Health Toronto and Toronto Metropolitan University, Toronto, Canada
| | - Celina Yang
- Department of Physics, Toronto Metropolitan University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between St. Michael's Hospital, a site of Unity Health Toronto and Toronto Metropolitan University, Toronto, Canada
| | - Elizabeth Berndl
- Department of Physics, Toronto Metropolitan University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between St. Michael's Hospital, a site of Unity Health Toronto and Toronto Metropolitan University, Toronto, Canada
| | - Marcin Golczak
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH, USA
| | - Michael C Kolios
- Department of Physics, Toronto Metropolitan University, Toronto, Canada; Institute for Biomedical Engineering, Science and Technology (iBEST), a partnership between St. Michael's Hospital, a site of Unity Health Toronto and Toronto Metropolitan University, Toronto, Canada
| | - Agata A Exner
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA; Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA.
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Sharma D, Sannachi L, Osapoetra LO, Cartar H, Cui W, Giles A, Czarnota GJ. Noninvasive Evaluation of Breast Tumor Response to Combined Ultrasound-Stimulated Microbubbles and Hyperthermia Therapy Using Quantitative Ultrasound-Based Texture Analysis Method. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2024; 43:137-150. [PMID: 37873733 DOI: 10.1002/jum.16347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 09/19/2023] [Accepted: 09/23/2023] [Indexed: 10/25/2023]
Abstract
OBJECTIVES Quantitative ultrasound (QUS) is a noninvasive imaging technique that can be used for assessing response to anticancer treatment. In the present study, tumor cell death response to the ultrasound-stimulated microbubbles (USMB) and hyperthermia (HT) treatment was monitored in vivo using QUS. METHODS Human breast cancer cell lines (MDA-MB-231) were grown in mice and were treated with HT (10, 30, 50, and 60 minutes) alone, or in combination with USMB. Treatment effects were examined using QUS with a center frequency of 25 MHz (bandwidth range: 16 to 32 MHz). Backscattered radiofrequency (RF) data were acquired from tumors subjected to treatment. Ultrasound parameters such as average acoustic concentration (AAC) and average scatterer diameter (ASD), were estimated 24 hours prior and posttreatment. Additionally, texture features: contrast (CON), correlation (COR), energy (ENE), and homogeneity (HOM) were extracted from QUS parametric maps. All estimated parameters were compared with histopathological findings. RESULTS The findings of our study demonstrated a significant increase in QUS parameters in both treatment conditions: HT alone (starting from 30 minutes of heat exposure) and combined treatment of HT plus USMB finally reaching a maximum at 50 minutes of heat exposure. Increase in AAC for 50 minutes HT alone and USMB +50 minutes was found to be 5.19 ± 0.417% and 5.91 ± 1.11%, respectively, compared to the control group with AAC value of 1.00 ± 0.44%. Furthermore, between the treatment groups, ΔASD-ENE values for USMB +30 minutes HT significantly reduced, depicting 0.00062 ± 0.00096% compared to 30 minutes HT only group, showing 0.0058 ± 0.0013%. Further, results obtained from the histological analysis indicated greater cell death and reduced nucleus size in both HT alone and HT combined with USMB. CONCLUSION The texture-based QUS parameters indicated a correlation with microstructural changes obtained from histological data. This work demonstrated the use of QUS to detect HT treatment effects in breast cancer tumors in vivo.
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Affiliation(s)
- Deepa Sharma
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Departments of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Lakshmanan Sannachi
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Departments of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Laurentius Oscar Osapoetra
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Departments of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Holliday Cartar
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Wentao Cui
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Anoja Giles
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Gregory J Czarnota
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Departments of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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Nittayacharn P, Abenojar E, Cooley M, Berg F, Counil C, Sojahrood AJ, Khan MS, Yang C, Berndl E, Golczak M, Kolios MC, Exner AA. Efficient ultrasound-mediated drug delivery to orthotopic liver tumors - Direct comparison of doxorubicin-loaded nanobubbles and microbubbles. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.01.555196. [PMID: 37732235 PMCID: PMC10508722 DOI: 10.1101/2023.09.01.555196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
Liver metastasis is a major obstacle in treating aggressive cancers, and current therapeutic options often prove insufficient. To overcome these challenges, there has been growing interest in ultrasound-mediated drug delivery using lipid-shelled microbubbles (MBs) and nanobubbles (NBs) as promising strategies for enhancing drug delivery to tumors. Our previous work demonstrated the potential of Doxorubicin-loaded C3F8 NBs (hDox-NB, 280 ± 123 nm) in improving cancer treatment in vitro using low-frequency ultrasound. In this study, we investigated the pharmacokinetics and biodistribution of sonicated hDox-NBs in orthotopic rat liver tumors. We compared their delivery and therapeutic efficiency with size-isolated MBs (hDox-MB, 1104 ± 373 nm). Results showed a similar accumulation of hDox in tumors treated with hDox-MBs and unfocused therapeutic ultrasound (hDox-MB+TUS) and hDox-NB+TUS. However, significantly increased apoptotic cell death in the tumor and fewer off-target apoptotic cells in the normal liver were found upon the treatment with hDox-NB+TUS. The tumor-to-liver apoptotic ratio was elevated 9.4-fold following treatment with hDox-NB+TUS compared to hDox-MB+TUS, suggesting that the therapeutic efficacy and specificity are significantly increased when using hDox-NB+TUS. These findings highlight the potential of this approach as a viable treatment modality for liver tumors. By elucidating the behavior of drug-loaded bubbles in vivo, we aim to contribute to developing more effective liver cancer treatments that could ultimately improve patient outcomes and decrease off-target side effects.
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Affiliation(s)
| | - Eric Abenojar
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA
| | - Michaela Cooley
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
| | - Felipe Berg
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Claire Counil
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA
| | | | | | - Celina Yang
- Department of Physics, Toronto Metropolitan University, Toronto, Canada
| | - Elizabeth Berndl
- Department of Physics, Toronto Metropolitan University, Toronto, Canada
| | - Marcin Golczak
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH, USA
| | - Michael C. Kolios
- Department of Physics, Toronto Metropolitan University, Toronto, Canada
| | - Agata A. Exner
- Department of Radiology, Case Western Reserve University, Cleveland, OH, USA
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, USA
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McNabb E, Sharma D, Sannachi L, Giles A, Yang W, Czarnota GJ. MR-guided ultrasound-stimulated microbubble therapy enhances radiation-induced tumor response. Sci Rep 2023; 13:4487. [PMID: 36934140 PMCID: PMC10024768 DOI: 10.1038/s41598-023-30286-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 02/20/2023] [Indexed: 03/20/2023] Open
Abstract
High intensity focused ultrasound (HIFU) systems have been approved for therapeutic ultrasound delivery to cause tissue ablation or induced hyperthermia. Microbubble agents have also been used in combination with sonication exposures. These require temperature feedback and monitoring to prevent unstable cavitation and prevent excess tissue heating. Previous work has utilized lower power and pressure to oscillate microbubbles and transfer energy to endothelial cells in the absence of thermally induced damage that can radiosensitize tumors. This work investigated whether reduced acoustic power and pressure on a commercial available MR-integrated HIFU system could result in enhanced radiation-induced tumor response after exposure to ultrasound-stimulated microbubbles (USMB) therapy. A commercially available MR-integrated HIFU system was used with a hyperthermia system calibration provided by the manufacturer. The ultrasound transducer was calibrated to reach a peak negative pressure of - 750 kPa. Thirty male New Zealand white rabbits bearing human derived PC3 tumors were grouped to receive no treatment, 14 min of USMB, 8 Gy of radiation in a separate irradiation cabinet, or combined treatments. In vivo temperature changes were collected using MR thermometry at the tumor center and far-field muscle region. Tissues specimens were collected 24 h post radiation therapy. Tumor cell death was measured and compared to untreated controls through hematoxylin and eosin staining and immunohistochemical analysis. The desired peak negative pressure of - 750 kPa used for previous USMB occurred at approximately an input power of 5 W. Temperature changes were limited to under 4 °C in ten of twelve rabbits monitored. The median temperature in the far-field muscle region of the leg was 2.50 °C for groups receiving USMB alone or in combination with radiation. Finally, statistically significant tumor cell death was demonstrated using immunohistochemical analysis in the combined therapy group compared to untreated controls. A commercial MR-guided therapy HIFU system was able to effectively treat PC3 tumors in a rabbit model using USMB therapy in combination with radiation exposures. Future work could find the use of reduced power and pressure levels in a commercial MR-guided therapy system to mechanically stimulate microbubbles and damage endothelial cells without requiring high thermal doses to elicit an antitumor response.
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Affiliation(s)
- Evan McNabb
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Deepa Sharma
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | | | - Anoja Giles
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Wenyi Yang
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Gregory J Czarnota
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada.
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.
- Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada.
- Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
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Sharma D, Cartar H, Quiaoit K, Law N, Giles A, Czarnota GJ. Effect of Ultrasound-Stimulated Microbubbles and Hyperthermia on Tumor Vasculature of Breast Cancer Xenograft. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:2659-2671. [PMID: 35142383 PMCID: PMC9790356 DOI: 10.1002/jum.15950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 12/14/2021] [Accepted: 12/22/2021] [Indexed: 05/09/2023]
Abstract
OBJECTIVE The objective of the present study was to investigate the treatment effects of ultrasound-stimulated microbubbles (USMB) and hyperthermia (HT) on breast tumor vasculature. METHODS Tumor-bearing mice with breast cancer xenografts (MDA-MB-231), were exposed to different treatment conditions consisting of control (no treatment), USMB alone, HT alone, USMB with HT exposures of 10 and 50 minutes. Quantitative 3D Doppler ultrasound and photoacoustic imaging were used to detect tumor blood flow and oxygen saturation, respectively. In addition, histopathological analysis including TUNEL staining for cell death, and CD31 staining for the vessel count, was performed to complement the results of power Doppler and photoacoustic imaging. RESULTS Results demonstrated a decrease in tumor blood flow as well as oxygenation level following 50 minutes HT treatment either alone or combined with USMB. In contrast, 10 minutes HT alone or combined with USMB had minimal effects on blood flow and tumor oxygenation level. Treatment with HT for 50 minutes caused drops in tumor oxygenation, which were not evident with USMB treatment alone. Additionally, results revealed an increase in cell death after 10 minutes HT with or without USMB and a decrease in vessel count compared to control. Unlike previous studies which demonstrated synergistic treatment effects combining USMB with other modalities such as radiation or chemotherapy, USMB and HT effects were not synergistic in the present study. CONCLUSION The results here demonstrated HT and USMB both alone or together resulted in a significant reduction in tumor blood flow, tumor oxygenation, and vessel count with observed increases in cell death response.
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Affiliation(s)
- Deepa Sharma
- Physical SciencesSunnybrook Research InstituteTorontoOntarioCanada
- Department of Radiation OncologySunnybrook Health Sciences CentreTorontoOntarioCanada
- Departments of Medical Biophysics, and Radiation OncologyUniversity of TorontoTorontoOntarioCanada
| | - Holliday Cartar
- Physical SciencesSunnybrook Research InstituteTorontoOntarioCanada
| | - Karina Quiaoit
- Physical SciencesSunnybrook Research InstituteTorontoOntarioCanada
| | - Niki Law
- Physical SciencesSunnybrook Research InstituteTorontoOntarioCanada
- Department of Radiation OncologySunnybrook Health Sciences CentreTorontoOntarioCanada
| | - Anoja Giles
- Physical SciencesSunnybrook Research InstituteTorontoOntarioCanada
| | - Gregory J. Czarnota
- Physical SciencesSunnybrook Research InstituteTorontoOntarioCanada
- Department of Radiation OncologySunnybrook Health Sciences CentreTorontoOntarioCanada
- Departments of Medical Biophysics, and Radiation OncologyUniversity of TorontoTorontoOntarioCanada
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Thies M, Oelze ML. Combined Therapy Planning, Real-Time Monitoring, and Low Intensity Focused Ultrasound Treatment Using a Diagnostic Imaging Array. IEEE TRANSACTIONS ON MEDICAL IMAGING 2022; 41:1410-1419. [PMID: 34986094 PMCID: PMC9199060 DOI: 10.1109/tmi.2021.3140176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Low intensity focused ultrasound (FUS) therapies use low intensity focused ultrasound waves, typically in combination with microbubbles, to non-invasively induce a variety of therapeutic effects. FUS therapies require pre-therapy planning and real-time monitoring during treatment to ensure the FUS beam is correctly targeted to the desired tissue region. To facilitate more streamlined FUS treatments, we present a system for pre-therapy planning, real-time FUS beam visualization, and low intensity FUS treatment using a single diagnostic imaging array. Therapy planning was accomplished by manually segmenting a B-mode image captured by the imaging array and calculating a sonication pattern for the treatment based on the user-input region of interest. For real-time monitoring, the imaging array transmitted a visualization pulse which was focused to the same location as the FUS therapy beam and ultrasonic backscatter from this pulse was used to reconstruct the intensity field of the FUS beam. The therapy planning and beam monitoring techniques were demonstrated in a tissue-mimicking phantom and in a rat tumor in vivo while a mock FUS treatment was carried out. The FUS pulse from the imaging array was excited with an MI of 0.78, which suggests that the array could be used to administer select low intensity FUS treatments involving microbubble activation.
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Application of Ultrasound Combined with Microbubbles for Cancer Therapy. Int J Mol Sci 2022; 23:ijms23084393. [PMID: 35457210 PMCID: PMC9026557 DOI: 10.3390/ijms23084393] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 02/07/2023] Open
Abstract
At present, cancer is one of the leading causes of death worldwide. Treatment failure remains one of the prime hurdles in cancer treatment due to the metastatic nature of cancer. Techniques have been developed to hinder the growth of tumours or at least to stop the metastasis process. In recent years, ultrasound therapy combined with microbubbles has gained immense success in cancer treatment. Ultrasound-stimulated microbubbles (USMB) combined with other cancer treatments including radiation therapy, chemotherapy or immunotherapy has demonstrated potential improved outcomes in various in vitro and in vivo studies. Studies have shown that low dose radiation administered with USMB can have similar effects as high dose radiation therapy. In addition, the use of USMB in conjunction with radiotherapy or chemotherapy can minimize the toxicity of high dose radiation or chemotherapeutic drugs, respectively. In this review, we discuss the biophysical properties of USMB treatment and its applicability in cancer therapy. In particular, we highlight important preclinical and early clinical findings that demonstrate the antitumour effect combining USMB and other cancer treatment modalities (radiotherapy and chemotherapy). Our review mainly focuses on the tumour vascular effects mediated by USMB and these cancer therapies. We also discuss several current limitations, in addition to ongoing and future efforts for applying USMB in cancer treatment.
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Jose AD, Wu Z, Thakur SS. A comprehensive update of micro- and nanobubbles as theranostics in oncology. Eur J Pharm Biopharm 2022; 172:123-133. [PMID: 35181491 DOI: 10.1016/j.ejpb.2022.02.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/14/2022] [Indexed: 12/18/2022]
Abstract
Advances in diagnostic and imaging capabilities have allowed cancers to be detected earlier and characterized more robustly. These strategies have recently branched into theranostics whereby contrast agents traditionally used for imaging have been co-loaded with therapeutics to simultaneously diagnose and treat cancers in a patient-specific manner. Microbubbles (MB) and nanobubbles (NB) are contrast agents which can be modulated to meet the theranostic needs particularly in the realm of oncology. The current review focuses on the ultrasound-responsive MB/NB platforms used as a theranostic tool in oncology. We discuss in detail the key parameters that influence the utility of MB/NB formulations and implications of such treatment modalities. Recent advances in composition strategies, latest works in the pre-clinical stages and multiple paradigm-shifting innovations in the field of MB/NB are discussed in-depth in this review. The clinical application of MB/NB is currently limited to diagnostic imaging. Surface chemistry modification strategies will help tune the formulations toward therapeutic applications. It is also anticipated that MB/NB will see increased use to deliver gas therapeutics. Scalability and stability considerations will be at the forefront as these particles get introduced into the clinical theranostic toolbox.
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Affiliation(s)
- Ashok David Jose
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Zimei Wu
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Sachin Sunil Thakur
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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Fu C, Shi J, Su X, Feng S, Wang S. Ultrasound-stimulated microbubbles contributes to radiotherapy in esophageal carcinoma. Biochem Cell Biol 2021; 99:707-716. [PMID: 34723651 DOI: 10.1139/bcb-2021-0061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
This study aimed to explore the effect of ultrasound-stimulated microbubbles (USMBs) on tumor radiosensitivity in esophageal carcinoma (EC). The human EC cell line KYSE-510 and human umbilical vein endothelial cells (HUVECs) were exposed to radiation alone or in combination with USMBs. CCK-8, colony formation, and EdU assays were used to determine cell viability and proliferation. Cell apoptosis was assessed using flow cytometry. Cell migration and invasion were examined by wound healing and transwell assays. Western blotting showed that the protein levels were associated with apoptosis, epithelial-mesenchymal transition (EMT), and angiogenesis. An endothelial tube-forming assay was used to detect the angiogenic activity of HUVECs. Xenograft experiments were used to examine the effect of USMBs on EC radiosensitivity in vivo. The expression of Ki-67 in tumors was detected using immunohistochemistry. USMBs enhanced the suppressive effect of radiation on proliferation, migration, invasion, and EMT, and promoted radiation-induced apoptosis in EC cells in vitro. Angiogenesis in EC was suppressed by radiation and further inhibited by the combination of radiation and USMBs. In vivo experiments revealed that USMBs increased the radiosensitivity of ECs to tumor growth. Collectively, USMBs enhanced the effects of radiotherapy in esophageal carcinoma.
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Affiliation(s)
- Chenchun Fu
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, China
| | - Jinjun Shi
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing, Jiangsu 210009, China
| | - Xiangyu Su
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, China
| | - Shicheng Feng
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, China
| | - Sheng Wang
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu 210009, China
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Sharma D, Osapoetra LO, Faltyn M, Giles A, Stanisz M, Czarnota GJ. In vivo assessment of prostate cancer response using quantitative ultrasound characterization of ultrasonic scattering properties. BMC Cancer 2021; 21:991. [PMID: 34479484 PMCID: PMC8417963 DOI: 10.1186/s12885-021-08706-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/18/2021] [Indexed: 11/10/2022] Open
Abstract
Background The study here investigated quantitative ultrasound (QUS) parameters to assess tumour response to ultrasound-stimulated microbubbles (USMB) and hyperthermia (HT) treatment in vivo. Mice bearing prostate cancer xenografts were exposed to various treatment conditions including 1% (v/v) Definity microbubbles stimulated at ultrasound pressures 246 kPa and 570 kPa and HT duration of 0, 10, 40, and 50 min. Ultrasound radiofrequency (RF) data were collected using an ultrasound transducer with a central frequency of 25 MHz. QUS parameters based on form factor models were used as potential biomarkers of cell death in prostate cancer xenografts. Results The average acoustic concentration (AAC) parameter from spherical gaussian and the fluid-filled spherical models were the most efficient imaging biomarker of cell death. Statistical significant increases of AAC were found in the combined treatment groups: 246 kPa + 40 min, 246 kPa + 50 min, and 570 kPa + 50 min, in comparison with control tumours (0 kPa + 0 min). Changes in AAC correlates strongly (r2 = 0.62) with cell death fraction quantified from the histopathological analysis. Conclusion Scattering property estimates from spherical gaussian and fluid-filled spherical models are useful imaging biomarkers for assessing tumour response to treatment. Our observation of changes in AAC from high ultrasound frequencies was consistent with previous findings where parameters related to the backscatter intensity (AAC) increased with cell death. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08706-7.
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Affiliation(s)
- Deepa Sharma
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada. .,Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada. .,Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada. .,Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
| | - Laurentius Oscar Osapoetra
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada.,Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada.,Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Mateusz Faltyn
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Anoja Giles
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Martin Stanisz
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada
| | - Gregory J Czarnota
- Physical Sciences, Sunnybrook Research Institute, Toronto, ON, Canada. .,Department of Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada. .,Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada. .,Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.
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Shi J, Fu C, Su X, Feng S, Wang S. Ultrasound-Stimulated Microbubbles Inhibit Aggressive Phenotypes and Promotes Radiosensitivity of esophageal squamous cell carcinoma. Bioengineered 2021; 12:3000-3013. [PMID: 34180353 PMCID: PMC8806926 DOI: 10.1080/21655979.2021.1931641] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Ultrasound (US) is reported to improve the delivery efficiency of drugs loading onto large nanoparticles due to the sonoporation effect. Microbubbles (MBs) can be used as contrast agents of US expanding and contracting under low-amplitude US pressure waves. Ultrasound-stimulated microbubbles (USMBs) therapy is a promising option for the treatment of various cancers as a radiosensitizer. However, its role in esophageal squamous cell carcinoma (ESCC) remains unknown. In our study, human ESCC cell lines (KYSE-410, KYSE-1140) were treated with radiation solely, US alone, or radiation in combination with US or USMBs. The migration and invasion abilities of ESCC cells were examined by wound healing and Transwell assays. ESCC cell apoptosis was assessed using flow cytometry analysis and TUNEL assays. The levels of proteins associated with cell apoptosis and angiogenesis were measured by western blot analysis. A tube formation assay was performed to detect the ESCC cell angiogenesis. We found that USMBs at high levels most effectively most efficiently enhanced the effect of radiation, and significant changes in the viability (48%-51%), proliferation (1%), migration (63%-71%), invasion (52%) and cell apoptosis (31%-50%) of ESCC cells were observed compared with the control group in vitro. The ESCC angiogenesis was inhibited by US or radiation treatment and further inhibited by a combination of radiation and US or USMBs. USMBs at high levels most effectively enhanced the inhibitory effect of radiotherapy on ESCC cell apoptosis. Overall, USMBs enhanced the radiosensitivity of esophageal squamous cell carcinoma cells.Graphical abstractUSMBs treatment enhanced the anti-tumor effect of radiation on ESCC cell proliferation, migration, invasion, angiogenesis and apoptosis in vitro.1USMBs enhance the radiation-induced inhibition on ESCC cell growth2USMBs promote the radiation effect on ESCC cell apoptosis3USMBs enhance radiation-caused suppression on ESCC cell migration and invasion4USMBs enhance the suppression of radiation on ESCC angiogenesis[Figure: see text].
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Affiliation(s)
- Jinjun Shi
- Department of Ultrasound, Zhongda Hospital, Medical School, Southeast University, Nanjing Jiangsu, China
| | - Chenchun Fu
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Xiangyu Su
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Shicheng Feng
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
| | - Sheng Wang
- Department of Oncology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China
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Sharma D, Osapoetra LO, Faltyn M, Do NNA, Giles A, Stanisz M, Sannachi L, Czarnota GJ. Quantitative ultrasound characterization of therapy response in prostate cancer in vivo. Am J Transl Res 2021; 13:4437-4449. [PMID: 34150025 PMCID: PMC8205668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
Quantitative ultrasound (QUS) is a non-invasive imaging modality that permits the detection of tumor response following various cancer therapies. Based on ultrasound signal scattering from the biological system, scatterer size, and concentration of microscopic scatterers, QUS enables the rapid characterization of tumor cell death. In this study, tumor response to ultrasound-stimulated microbubbles (USMB) and hyperthermia (HT) in tumor-bearing mice, with prostate cancer xenografts (PC3), was examined using QUS. Treatment conditions included 1% (v/v) Definity microbubbles stimulated at ultrasound pressures (0, 246, and 570 kPa) and HT treatment (0, 10, 40, and 50 minutes). Three ultrasound backscatter parameters, mid-band fit (MBF), 0-MHz spectral intercept (SI), and spectral slope (SS) were estimated prior to, and 24 hours after treatment. Additionally, histological assessment of tumor cell death and tissue microstructural changes was used to complement the results obtained from ultrasound data. Results demonstrated a significant increase in QUS parameters (MBF and SI) followed combined USMB and HT treatment (P<0.05). In contrast, the backscatter parameters from the control (untreated) group, and USMB only group showed minimal changes (P>0.05). Furthermore, histological data demonstrated increased cell death and prominent changes in cellular and tissue structure, nucleus size, and subcellular constituent orientation followed combined treatments. The findings suggested that QUS parameters derived from the ultrasound backscattered power spectrum may be used to detect HT treatment effects in prostate cancer tumors in vivo.
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Affiliation(s)
- Deepa Sharma
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Medical Biophysics and Radiation Oncology, University of TorontoToronto, Ontario, Canada
| | - Laurentius Oscar Osapoetra
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Medical Biophysics and Radiation Oncology, University of TorontoToronto, Ontario, Canada
| | - Mateusz Faltyn
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
| | - Natalie Ngoc Anh Do
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
| | - Anoja Giles
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
| | - Martin Stanisz
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
| | - Lakshmanan Sannachi
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Medical Biophysics and Radiation Oncology, University of TorontoToronto, Ontario, Canada
| | - Gregory J Czarnota
- Imaging Research and Physical Sciences, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Radiation Oncology, Sunnybrook Health Sciences CentreToronto, Ontario, Canada
- Department of Medical Biophysics and Radiation Oncology, University of TorontoToronto, Ontario, Canada
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Wu H, Tong L, Wang Y, Yan H, Sun Z. Bibliometric Analysis of Global Research Trends on Ultrasound Microbubble: A Quickly Developing Field. Front Pharmacol 2021; 12:646626. [PMID: 33967783 PMCID: PMC8101552 DOI: 10.3389/fphar.2021.646626] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/03/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Microbubbles are widely used as highly effective contrast agents to improve the diagnostic capability of ultrasound imaging. Mounting evidence suggests that ultrasound coupled with microbubbles has promising therapeutic applications in cancer, cardiovascular, and neurological disorders by acting as gene or drug carriers. The aim of this study was to identify the scientific output and activity related to ultrasound microbubble through bibliometric approaches. Methods: The literature related to ultrasound microbubble published between 1998 and 2019 was identified and selected from the Science Citation Index Expanded of Web of Science Core Collection on February 21, 2021. The Scopus database was also searched to validate the results and provided as supplementary material. Quantitative variables including number of publications and citations, H-index, and journal citation reports were analyzed by using Microsoft Excel 2019 and GraphPad Prism 8.0 software. VOS viewer and CiteSpace V were used to perform coauthorship, citation, co-citation, and co-occurrence analysis for countries/regions, institutions, authors, and keywords. Results: A total of 6088 publications from the WoSCC were included. The United States has made the largest contribution in this field, with the majority of publications (2090, 34.3%), citations (90,741, 46.6%), the highest H-index (138), and close collaborations with China and Canada. The most contributive institution was the University of Toronto. Professors De Jong N and Dayton P A have made great achievements in this field. However, the research cooperation between institutions and authors was relatively weak. All the studies could be divided into four clusters: "ultrasound diagnosis study," "microbubbles' characteristics study," "gene therapy study," and "drug delivery study." The average appearing years (AAY) of keywords in the cluster "drug delivery study" was more recent than other clusters. For promising hot spots, "doxorubicin" showed a relatively latest AAY of 2015.49, followed by "nanoparticles" and "breast cancer." Conclusion: There has been an increasing amount of scientific output on ultrasound microbubble according to the global trends, and the United States is staying ahead in this field. Collaboration between research teams still needs to be strengthened. The focus gradually shifts from "ultrasound diagnosis study" to "drug delivery study." It is recommended to pay attention to the latest hot spots, such as "doxorubicin," "nanoparticles," and "breast cancer."
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Affiliation(s)
- Haiyang Wu
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Linjian Tong
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Yulin Wang
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
| | - Hua Yan
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China.,Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Tianjin Neurosurgical Institute, Tianjin Huanhu Hospital, Tianjin, China
| | - Zhiming Sun
- Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China.,Department of Orthopaedic Surgery, Tianjin Huanhu Hospital, Tianjin, China
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Karmacharya MB, Sultan LR, Sehgal CM. Photoacoustic monitoring of oxygenation changes induced by therapeutic ultrasound in murine hepatocellular carcinoma. Sci Rep 2021; 11:4100. [PMID: 33603035 PMCID: PMC7893035 DOI: 10.1038/s41598-021-83439-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 02/01/2021] [Indexed: 02/08/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a highly vascular solid tumor. We have previously shown that ultrasound (US) therapy significantly reduces tumor vascularity. This study monitors US-induced changes in tumor oxygenation on murine HCC by photoacoustic imaging (PAI). Oxygen saturation and total hemoglobin were assessed by PAI before and after US treatments performed at different intensities of continuous wave (CW) bursts and pulsed wave (PW) bursts US. PAI revealed significant reduction both in HCC oxygen saturation and in total hemoglobin, proportional to the US intensity. Both CW bursts US (1.6 W/cm2) and the PW bursts US (0.8 W/cm2) significantly reduced HCC oxygen saturation and total hemoglobin which continued to diminish with time following the US treatment. The effects of US therapy were confirmed by power Doppler and histological examination of the hemorrhage in tumors. By each measure, the changes observed in US-treated HCC were more prevalent than those in sham-treated tumors and were statistically significant. In conclusion, the results show that US is an effective vascular-targeting therapy for HCC. The changes in oxygenation induced by the US treatment can be noninvasively monitored longitudinally by PAI without the use of exogenous image-enhancing agents. The combined use of PAI and the therapeutic US has potential for image-guided vascular therapy for HCC.
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Affiliation(s)
- Mrigendra B Karmacharya
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, 3620 Hamilton Walk, Philadelphia, PA, 19104, USA
| | - Laith R Sultan
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, 3620 Hamilton Walk, Philadelphia, PA, 19104, USA
| | - Chandra M Sehgal
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, 3620 Hamilton Walk, Philadelphia, PA, 19104, USA.
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