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Wang G, Song L, Hou X, Kala S, Wong KF, Tang L, Dai Y, Sun L. Surface-modified GVs as nanosized contrast agents for molecular ultrasound imaging of tumor. Biomaterials 2020; 236:119803. [PMID: 32028170 DOI: 10.1016/j.biomaterials.2020.119803] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 01/11/2020] [Accepted: 01/19/2020] [Indexed: 12/13/2022]
Abstract
Nanobubbles, as a kind of new ultrasound contrast agent (UCAs), have shown promise to penetrate tumor vasculature to allow for targeted imaging. However, their inherent physical instability is an ongoing concern that could weaken their imaging ability with ultrasound. Gas vesicles (GVs), which are genetically encoded, naturally stable nanostructures, have been developed as the first ultrasonic biomolecular reporters which showed strong contrast enhancement. However, further development of tumor imaging with GVs is limited by the quick clearance of GVs by the reticuloendothelial system (RES). Here, we developed PEGylated HA-GVs (PH-GVs) for in-tumor molecular ultrasound imaging by integrating polyethylene glycol (PEG) and hyaluronic acid (HA) in GV shells. PH-GVs were observed to accumulate around CD44-positive cells (SCC7) but not be internalized by macrophage cell line RAW 264.7. Green fluorescence from PH-GVs was found around cell nuclei in the tumor site after 6 h and the signal was sustained over 48 h following tail injection, demonstrating PH-GVs' ability to escape the clearance from the RES and to penetrate tumor vasculature through enhanced permeability and retention (EPR) effects. Further, PH-GVs produced strong ultrasound contrast in the tumor site in vivo, with no obvious side-effects detected following intravenous injection. Thus, we demonstrate the potential of PH-GVs as novel, nanosized and targeted UCAs for efficient and specific molecular tumor imaging, paving the way for the application of GVs in precise and personalized medicine.
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Affiliation(s)
- Guohao Wang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region
| | - Lin Song
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region
| | - Xuandi Hou
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region
| | - Shashwati Kala
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region
| | - Kin Fung Wong
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region
| | - Liya Tang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region
| | - Yunlu Dai
- Cancer Centre, Faculty of Health Sciences, University of Macau, Macau
| | - Lei Sun
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region.
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Shang M, Sun X, Guo L, Shi D, Liang P, Meng D, Zhou X, Liu X, Zhao Y, Li J. pH- and Ultrasound-Responsive Paclitaxel-Loaded Carboxymethyl Chitosan Nanodroplets for Combined Imaging and Synergistic Chemoradiotherapy. Int J Nanomedicine 2020; 15:537-552. [PMID: 32021193 PMCID: PMC6988588 DOI: 10.2147/ijn.s233669] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 01/02/2020] [Indexed: 12/16/2022] Open
Abstract
Background Synergistic chemoradiotherapy (CRT) has become a primary effective curative approach for many solid cancers. However, CRT is still associated with several obstacles, including the increases in side effects and systemic toxicity. Incorporating nanocarriers into CRT is a new and exciting approach to solve these obstacles. The purpose of the present study was to design a unique pH- and ultrasound-responsive perfluoropentane-encapsulated, paclitaxel (PTX)-loaded carboxymethyl chitosan nanodroplets (NDs) for combined imaging and synergistic CRT. Materials and Methods The NDs were prepared by a homogenization/emulsion method. Their physicochemical properties, echogenicity and biocompatibility were evaluated. PTX-loaded NDs with a high loading efficiency and encapsulation efficiency were prepared and their pH-responsive drug release profile was determined by dialysis sack method. Then, PC3 cells were exposed to (1) PTX (4 μg/mL), (2) NDs (30 μg/mL), (3) PTX-loaded NDs (34 μg/mL), (4) RT (6 Gy), (5) RT (10 Gy), (6) combination of PTX (4 μg/mL), ultrasound (0.5 W/cm2, 30 s) and RT (6 Gy), (7) combination of NDs (30 μg/mL), ultrasound (0.5 W/cm2, 30 s) and RT (6Gy), (8) combination of PTX-loaded NDs (30 μg/mL), ultrasound (0.5 W/cm2, 30 s) and RT (6 Gy). 24 hrs later, CCK-8 assay, flow cytometry and migration assay were carried out to evaluate their therapeutic effects in CRT. Results The desired NDs were successfully prepared, which were with round, spherical shapes, relatively smooth surfaces, core-shell structures and uniform in sizes (<300 nm with PDI<0.3 when at pH≧6.0). The NDs exhibited good abilities in pH-dependent charge conversion, biocompatibility and ultrasound contrast echogenicity. The in vitro drug release from PTX-loaded NDs (the highest loading efficiency and encapsulation efficiency were 20.35% and 91.58%) was pH dependent and exhibited an initial burst followed by a sustained drug release. The results of the CCK-8 assay, flow cytometry and migration assay all showed PTX-loaded NDs combined ultrasound and RT significantly enhanced cell responses in CRT. Conclusion The pH- and ultrasound-responsive PTX-loaded NDs, which exhibited a high echogenicity, drug delivery ability and radiosensitization ability, could be a feasible option for combined imaging and novel enhancing approach in synergistic CRT.
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Affiliation(s)
- Mengmeng Shang
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Xiao Sun
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Lu Guo
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Dandan Shi
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Ping Liang
- Department of Interventional Ultrasound, Chinese PLA General Hospital, Beijing 100853, People's Republic of China
| | - Dong Meng
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Xiaoying Zhou
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Xinxin Liu
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Yading Zhao
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Jie Li
- Department of Ultrasound, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
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Bam R, Lown PS, Stern LA, Sharma K, Wilson KE, Bean GR, Lutz AM, Paulmurugan R, Hackel BJ, Dahl J, Abou-Elkacem L. Efficacy of Affibody-Based Ultrasound Molecular Imaging of Vascular B7-H3 for Breast Cancer Detection. Clin Cancer Res 2020; 26:2140-2150. [PMID: 31924738 PMCID: PMC7196517 DOI: 10.1158/1078-0432.ccr-19-1655] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 11/25/2019] [Accepted: 01/07/2020] [Indexed: 12/13/2022]
Abstract
PURPOSE Human B7-H3 (hB7-H3) is a promising molecular imaging target differentially expressed on the neovasculature of breast cancer and has been validated for preclinical ultrasound (US) imaging with anti-B7-H3-antibody-functionalized microbubbles (MB). However, smaller ligands such as affibodies (ABY) are more suitable for the design of clinical-grade targeted MB. EXPERIMENTAL DESIGN Binding of ABYB7-H3 was confirmed with soluble and cell-surface B7-H3 by flow cytometry. MB were functionalized with ABYB7-H3 or anti-B7-H3-antibody (AbB7-H3). Control and targeted MB were tested for binding to hB7-H3-expressing cells (MS1hB7-H3) under shear stress conditions. US imaging was performed with MBABY-B7-H3 in an orthotopic mouse model of human MDA-MB-231 coimplanted with MS1hB7-H3 or control MS1WT cells and a transgenic mouse model of breast cancer development. RESULTS ABYB7-H3 specifically binds to MS1hB7-H3 and murine-B7-H3-expressing monocytes. MBABY-B7-H3 (8.5 ± 1.4 MB/cell) and MBAb-B7-H3 (9.8 ± 1.3 MB/cell) showed significantly higher (P < 0.0001) binding to the MS1hB7-H3 cells compared with control MBNon-targeted (0.5 ± 0.1 MB/cell) under shear stress conditions. In vivo, MBABY-B7-H3 produced significantly higher (P < 0.04) imaging signal in orthotopic tumors coengrafted with MS1hB7-H3 (8.4 ± 3.3 a.u.) compared with tumors with MS1WT cells (1.4 ± 1.0 a.u.). In the transgenic mouse tumors, MBABY-B7-H3 (9.6 ± 2.0 a.u.) produced higher (P < 0.0002) imaging signal compared with MBNon-targeted (1.3 ± 0.3 a.u.), whereas MBABY-B7-H3 signal in normal mammary glands and tumors with B7-H3 blocking significantly reduced (P < 0.02) imaging signal. CONCLUSIONS MBABY-B7-H3 enhances B7-H3 molecular signal in breast tumors, improving cancer detection, while offering the advantages of a small size ligand and easier production for clinical imaging.
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Affiliation(s)
- Rakesh Bam
- Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Patrick S Lown
- Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota
| | - Lawrence A Stern
- Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota
| | - Karina Sharma
- Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Katheryne E Wilson
- Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Gregory R Bean
- Department of Pathology, Stanford University School of Medicine, Stanford, California
| | - Amelie M Lutz
- Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Ramasamy Paulmurugan
- Department of Radiology, Stanford University School of Medicine, Stanford, California
| | - Benjamin J Hackel
- Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota
| | - Jeremy Dahl
- Department of Radiology, Stanford University School of Medicine, Stanford, California.
| | - Lotfi Abou-Elkacem
- Department of Radiology, Stanford University School of Medicine, Stanford, California
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Zhang S, Di N, Tayier B, Guan L, Wang G, Lu H, Yan F, Mu Y. Early evaluation of survival of the transplanted ovaries through ultrasound molecular imaging via targeted nanobubbles. Biomater Sci 2020; 8:5402-5414. [PMID: 32996915 DOI: 10.1039/d0bm01125h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Schematic of AMH-targeted nanobubbles (NBAMH) and their targeting ability to rat ovarian granulosa cells expressing AMH.
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Affiliation(s)
- Shan Zhang
- Department of Echocardiography
- First Affiliated Hospital of Xinjiang Medical University
- Urumqi
- China
| | - Na Di
- Department of Echocardiography
- First Affiliated Hospital of Xinjiang Medical University
- Urumqi
- China
- Department of Ultrasound
| | - Baihetiya Tayier
- Department of Echocardiography
- First Affiliated Hospital of Xinjiang Medical University
- Urumqi
- China
| | - Lina Guan
- Department of Echocardiography
- First Affiliated Hospital of Xinjiang Medical University
- Urumqi
- China
| | - Guodong Wang
- Department of Echocardiography
- First Affiliated Hospital of Xinjiang Medical University
- Urumqi
- China
| | - Hanbing Lu
- Department of Echocardiography
- First Affiliated Hospital of Xinjiang Medical University
- Urumqi
- China
| | - Fei Yan
- CAS Key Laboratory of Quantitative Engineering Biology
- Shenzhen Institute of Synthetic Biology
- Shenzhen Institutes of Advanced Technology
- Chinese Academy of Sciences
- Shenzhen
| | - Yuming Mu
- Department of Echocardiography
- First Affiliated Hospital of Xinjiang Medical University
- Urumqi
- China
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Abstract
Contrast-enhanced ultrasound (CEUS) imaging is a valuable tool for preclinical and clinical diagnostics. The most frequently used ultrasound contrast agents are microbubbles. Besides them, novel nano-sized materials are under investigation, which are briefly discussed in this chapter. For molecular CEUS, the ultrasound contrast agents are modified to actively target disease-associated molecular markers with a site-specific ligand. The most common markers for tumor imaging are related to neoangiogenesis, like the vascular endothelial growth factor receptor-2 (VEGFR2) and αvβ3 integrin. In this chapter, applications of molecular ultrasound to longitudinally monitor receptor expression during tumor growth, to detect neovascularization, and to evaluate therapy responses are described. Furthermore, we report on first clinical trials of molecular CEUS with VEGFR2-targeted phospholipid microbubbles showing promising results regarding patient safety and its ability to detect tumors of prostate, breast, and ovary. The chapter closes with an outlook on ultrasound theranostics, where (targeted) ultrasound contrast agents are used to increase the permeability of tumor tissues and to support drug delivery.
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Affiliation(s)
- Jasmin Baier
- Institute for Experimental Molecular Imaging Organization University Clinics, RWTH Aachen University, Forckenbeckstrasse 55, 52074 Aachen, Germany
| | - Anne Rix
- Institute for Experimental Molecular Imaging Organization University Clinics, RWTH Aachen University, Forckenbeckstrasse 55, 52074 Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging Organization University Clinics, RWTH Aachen University, Forckenbeckstrasse 55, 52074 Aachen, Germany.
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Dammes N, Peer D. Monoclonal antibody-based molecular imaging strategies and theranostic opportunities. Theranostics 2020; 10:938-955. [PMID: 31903161 PMCID: PMC6929980 DOI: 10.7150/thno.37443] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 09/26/2019] [Indexed: 01/13/2023] Open
Abstract
Molecular imaging modalities hold great potential as less invasive techniques for diagnosis and management of various diseases. Molecular imaging combines imaging agents with targeting moieties to specifically image diseased sites in the body. Monoclonal antibodies (mAbs) have become increasingly popular as novel therapeutics against a variety of diseases due to their specificity, affinity and serum stability. Because of the same properties, mAbs are also exploited in molecular imaging to target imaging agents such as radionuclides to the cell of interest in vivo. Many studies investigated the use of mAb-targeted imaging for a variety of purposes, for instance to monitor disease progression and to predict response to a specific therapeutic agent. Herein, we highlighted the application of mAb-targeted imaging in three different types of pathologies: autoimmune diseases, oncology and cardiovascular diseases. We also described the potential of molecular imaging strategies in theranostics and precision medicine. Due to the nearly infinite repertoire of mAbs, molecular imaging can change the future of modern medicine by revolutionizing diagnostics and response prediction in practically any disease.
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Affiliation(s)
- Niels Dammes
- Laboratory of Precision NanoMedicine, Tel Aviv University, Tel Aviv 69978, Israel
- School of Molecular Cell Biology and Biotechnology, George S Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
- Department of Materials Sciences and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- Center for Nanoscience and Nanotechnology, and Tel Aviv University, Tel Aviv 69978, Israel
- Cancer Biology Research Center, Tel Aviv University, Tel Aviv 69978, Israel
| | - Dan Peer
- Laboratory of Precision NanoMedicine, Tel Aviv University, Tel Aviv 69978, Israel
- School of Molecular Cell Biology and Biotechnology, George S Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
- Department of Materials Sciences and Engineering, Iby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel
- Center for Nanoscience and Nanotechnology, and Tel Aviv University, Tel Aviv 69978, Israel
- Cancer Biology Research Center, Tel Aviv University, Tel Aviv 69978, Israel
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Preclinical Molecular Imaging for Precision Medicine in Breast Cancer Mouse Models. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:8946729. [PMID: 31598114 PMCID: PMC6778915 DOI: 10.1155/2019/8946729] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 04/28/2019] [Accepted: 07/25/2019] [Indexed: 12/18/2022]
Abstract
Precision and personalized medicine is gaining importance in modern clinical medicine, as it aims to improve diagnostic precision and to reduce consequent therapeutic failures. In this regard, prior to use in human trials, animal models can help evaluate novel imaging approaches and therapeutic strategies and can help discover new biomarkers. Breast cancer is the most common malignancy in women worldwide, accounting for 25% of cases of all cancers and is responsible for approximately 500,000 deaths per year. Thus, it is important to identify accurate biomarkers for precise stratification of affected patients and for early detection of responsiveness to the selected therapeutic protocol. This review aims to summarize the latest advancements in preclinical molecular imaging in breast cancer mouse models. Positron emission tomography (PET) imaging remains one of the most common preclinical techniques used to evaluate biomarker expression in vivo, whereas magnetic resonance imaging (MRI), particularly diffusion-weighted (DW) sequences, has been demonstrated as capable of distinguishing responders from nonresponders for both conventional and innovative chemo- and immune-therapies with high sensitivity and in a noninvasive manner. The ability to customize therapies is desirable, as this will enable early detection of diseases and tailoring of treatments to individual patient profiles. Animal models remain irreplaceable in the effort to understand the molecular mechanisms and patterns of oncologic diseases.
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58
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Near-infrared absorbing nanoemulsions as nonlinear ultrasound contrast agents for cancer theranostics. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.125] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Development of Antibody-Modified Nanobubbles Using Fc-Region-Binding Polypeptides for Ultrasound Imaging. Pharmaceutics 2019; 11:pharmaceutics11060283. [PMID: 31208098 PMCID: PMC6631014 DOI: 10.3390/pharmaceutics11060283] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/10/2019] [Accepted: 06/12/2019] [Indexed: 02/01/2023] Open
Abstract
Ultrasound (US) imaging is a widely used imaging technique. The use of US contrast agents such as microbubbles, which consist of phospholipids and are filled with perfluorocarbon gases, has become an indispensable component of clinical US imaging, while molecular US imaging has recently attracted significant attention in combination with efficient diagnostics. The avidin–biotin interaction method is frequently used to tether antibodies to microbubbles, leading to the development of a molecular targeting US imaging agent. However, avidin still has limitations such as immunogenicity. We previously reported that lipid-based nanobubbles (NBs) containing perfluorocarbon gas are suitable for US imaging and gene delivery. In this paper, we report on the development of a novel antibody modification method for NBs using Fc-region-binding polypeptides derived from protein A/G. First, we prepared anti-CD146 antibody-modified NBs using this polypeptide, resulting in high levels of attachment to human umbilical vein endothelial cells expressing CD146. To examine their targeting ability and US imaging capability, the NBs were administered to tumor-bearing mice. The contrast imaging of antibody-modified NBs was shown to be prolonged compared with that of non-labeled NBs. Thus, this antibody modification method using an Fc-binding polypeptide may be a feasible tool for developing a next-generation antibody-modified US imaging agent.
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60
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Emulsion Techniques for the Production of Pharmacological Nanoparticles. Macromol Biosci 2019; 19:e1900063. [DOI: 10.1002/mabi.201900063] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/10/2019] [Indexed: 12/13/2022]
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Biomedical Imaging: Principles, Technologies, Clinical Aspects, Contrast Agents, Limitations and Future Trends in Nanomedicines. Pharm Res 2019; 36:78. [PMID: 30945009 DOI: 10.1007/s11095-019-2608-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/11/2019] [Indexed: 12/11/2022]
Abstract
This review article presents the state-of-the-art in the major imaging modalities supplying relevant information on patient health by real-time monitoring to establish an accurate diagnosis and potential treatment plan. We draw a comprehensive comparison between all imagers and ultimately end with our focus on two main types of scanners: X-ray CT and MRI scanners. Numerous types of imaging probes for both imaging techniques are described, as well as reviewing their strengths and limitations, thereby showing the current need for the development of new diagnostic contrast agents (CAs). The role of nanoparticles in the design of CAs is then extensively detailed, reviewed and discussed. We show how nanoparticulate agents should be promising alternatives to molecular ones and how they are already paving new routes in the field of nanomedicine.
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Wischhusen J, Padilla F. Ultrasound Molecular Imaging with Targeted Microbubbles for Cancer Diagnostics: From Bench to Bedside. Ing Rech Biomed 2019. [DOI: 10.1016/j.irbm.2018.10.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Pandit H, Tinney JP, Li Y, Cui G, Li S, Keller BB, Martin RCG. Utilizing Contrast-Enhanced Ultrasound Imaging for Evaluating Fatty Liver Disease Progression in Pre-clinical Mouse Models. ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:549-557. [PMID: 30527843 DOI: 10.1016/j.ultrasmedbio.2018.10.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 10/16/2018] [Accepted: 10/19/2018] [Indexed: 06/09/2023]
Abstract
We developed a protocol to investigate and optimize the application of contrast-enhanced ultrasound (CEUS) to non-invasive diagnosis of progressing fatty liver disease in mouse models. Eighteen 4-wk-old male C57 L/J mice were randomly assigned to one of the three groups and placed on a control diet, high-fat diet or non-alcoholic steatohepatitis diet for the next 10 wk. After 14 wk, B-mode imaging and CEUS imaging using a VisualSonics Vevo2100 system were performed. CEUS imaging and data analysis using three different parameters-peak enhancement, wash-in rate and wash-in perfusion index-revealed a significant decrease in representative blood flow in the high-fat diet group versus controls and a further significant decrease in the non-alcoholic steatohepatitis group (p < 0.001; n = 6/group). In conclusion, compared with B-mode imaging, non-targeted CEUS imaging was more sensitive in diagnosing early-stage fatty infiltration-mediated vascularity changes in liver parenchyma and provided a more accurate steatohepatitis diagnosis in mouse models.
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Affiliation(s)
- Harshul Pandit
- Division of Surgical Oncology, Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky, USA; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Joseph P Tinney
- Kosair Charities Pediatric Health Research Program, Cardiovascular Innovation Institute, University of Louisville, Louisville, Kentucky, USA; Department of Pediatrics, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Yan Li
- Division of Surgical Oncology, Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Guozhen Cui
- Division of Surgical Oncology, Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Suping Li
- Division of Surgical Oncology, Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Bradley B Keller
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA; Kosair Charities Pediatric Health Research Program, Cardiovascular Innovation Institute, University of Louisville, Louisville, Kentucky, USA; Department of Pediatrics, University of Louisville School of Medicine, Louisville, Kentucky, USA
| | - Robert C G Martin
- Division of Surgical Oncology, Hiram C. Polk, Jr., MD Department of Surgery, University of Louisville School of Medicine, Louisville, Kentucky, USA; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, Kentucky, USA.
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Nam K, Stanczak M, Forsberg F, Liu JB, Eisenbrey JR, Solomides CC, Lyshchik A. Sentinel Lymph Node Characterization with a Dual-Targeted Molecular Ultrasound Contrast Agent. Mol Imaging Biol 2019; 20:221-229. [PMID: 28762204 DOI: 10.1007/s11307-017-1109-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE The purpose of this study was to assess the performance of molecular ultrasound with dual-targeted microbubbles to detect metastatic disease in the sentinel lymph nodes (SLNs) in swine model of naturally occurring melanoma. The SLN is the first lymph node in the lymphatic chain draining primary tumor, and early detection of metastatic SLN involvement is critical in the appropriate management of melanoma. PROCEDURE Nine Sinclair swine (weight 3-7 kg; Sinclair BioResources, Columbia, MO, USA) with naturally occurring melanoma were examined. Siemens S3000 scanner with a 9L4 probe was used for imaging (Siemens Healthineers, Mountain View, CA). Dual-targeted contrast agent was created using Targestar SA microbubbles (Targeson, San Diego, CA, USA) labeled with ανβ3-integrin and P-selectin antibodies. Targestar SA microbubbles labeled with IgG-labeled were used as control. First, peritumoral injection of Sonazoid contrast agent (GE Healthcare, Oslo, Norway) was performed to detect SLNs. After that, dual-targeted and IGG control Targestar SA microbubbles were injected intravenously with a 30-min interval between injections. Labeled Targestar SA microbubbles were allowed to circulate for 4 min to enable binding. After that, two sets of image clips were acquired several seconds before and after a high-power destruction sequence. The mean intensity difference pre- to post-bubble destruction within the region of interest placed over SLN was calculated as a relative measure of targeted microbubble contrast agent retention. This process was repeated for non-SLNs as controls. All lymph nodes evaluated on imaging were surgically removed and histologically examined for presence of metastatic involvement. RESULTS A total of 43 lymph nodes (25 SLNs and 18 non-SLNs) were included in the analysis with 18 SLNs demonstrating metastatic involvement greater than 5 % on histology. All non-SLNs were benign. The mean intensity (± SD) of the dual-targeted microbubbles for metastatic SLNs was significantly higher than that of benign LNs (18.05 ± 19.11 vs. 3.30 ± 6.65 AU; p = 0.0008), while IgG-labeled control microbubbles demonstrated no difference in retained contrast intensity between metastatic and benign lymph nodes (0.39 ± 1.14 vs. 0.03 ± 0.24 AU; p = 0.14). CONCLUSIONS The results indicate that dual-targeted microbubbles labeled with P-selectin and ανβ3-integrin antibodies may aid in detecting metastatic involvement in SLNs of melanoma.
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Affiliation(s)
- Kibo Nam
- Department of Radiology, Thomas Jefferson University, 132 South 10th Street, Philadelphia, PA, 19107, USA
| | - Maria Stanczak
- Department of Radiology, Thomas Jefferson University, 132 South 10th Street, Philadelphia, PA, 19107, USA
| | - Flemming Forsberg
- Department of Radiology, Thomas Jefferson University, 132 South 10th Street, Philadelphia, PA, 19107, USA
| | - Ji-Bin Liu
- Department of Radiology, Thomas Jefferson University, 132 South 10th Street, Philadelphia, PA, 19107, USA
| | - John R Eisenbrey
- Department of Radiology, Thomas Jefferson University, 132 South 10th Street, Philadelphia, PA, 19107, USA
| | | | - Andrej Lyshchik
- Department of Radiology, Thomas Jefferson University, 132 South 10th Street, Philadelphia, PA, 19107, USA.
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Vishal TMD, Ji-Bin LMD, John EP. Applications in Molecular Ultrasound Imaging: Present and Future. ADVANCED ULTRASOUND IN DIAGNOSIS AND THERAPY 2019. [DOI: 10.37015/audt.2019.190812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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InVivo Molecular Ultrasound Assessment of Glioblastoma Neovasculature with Endoglin-Targeted Microbubbles. CONTRAST MEDIA & MOLECULAR IMAGING 2018; 2018:8425495. [PMID: 30498402 PMCID: PMC6220748 DOI: 10.1155/2018/8425495] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 05/16/2018] [Accepted: 09/20/2018] [Indexed: 12/16/2022]
Abstract
Objectives Glioblastoma, as one of the most malignant cancer in the world, usually shows substantially increased angiogenesis. Endoglin (CD105), which is an alternative proangiogenic growth factor, has been remarkably upregulated on the proliferating glioblastoma neovasculature. However, little is known on the noninvasive assessment of the expression levels of CD105 during glioblastoma progression. Herein, we investigated the potential of the molecular ultrasound imaging for the noninvasive assessment of the expression levels of the biomarker CD105 during the glioblastoma progression. Materials and Methods The CD105-targeted perfluorocarbon-containing lipid-shelled microbubbles (MBs) were prepared. A parallel flow chamber was employed, in which the CD105-targeted and non-targeted MBs were tested across the CD105 ± expression cell lines. In vivo molecular US imaging was conducted based on a subcutaneous xenograft tumor model (n=9). Finally, the statistical analysis was conducted to quantitatively correlate the attachment numbers of MBs in the parallel flow chamber test with the CD105 expression levels of the cells in the flow cytometry test and the in vivo molecular ultrasound signals with the ex vivo expression levels of CD105 in the immunohistochemical test. Results and Discussion The attachment numbers of the CD105-targeted MBs significantly correlated with the CD105 expression levels of the cells in the parallel flow chamber test. There was a good correlation between the in vivo molecular ultrasound signals with the CD105-targeted MBs and the ex vivo expression levels of CD105 in the immunohistochemical test. The results indicate that the molecular US imaging is much potential to assess the progression of the glioblastoma neovasculature noninvasively.
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Kumar PK, Araki T, Rajan J, Laird JR, Nicolaides A, Suri JS. State-of-the-art review on automated lumen and adventitial border delineation and its measurements in carotid ultrasound. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2018; 163:155-168. [PMID: 30119850 DOI: 10.1016/j.cmpb.2018.05.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 04/29/2018] [Accepted: 05/09/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND AND OBJECTIVE Accurate, reliable, efficient, and precise measurements of the lumen geometry of the common carotid artery (CCA) are important for (a) managing the progression/regression of atherosclerotic build-up and (b) the risk of stroke. The image-based degree of stenosis in the carotid artery and the plaque burden can be predicted using the automated carotid lumen diameter (LD)/inter-adventitial diameter (IAD) measurements from B-mode ultrasound images. The objective of this review is to present the state-of-the-art methods and systems for the measurement of LD/IAD in CCA based on automated or semi-automated strategies. Further, the performance of these systems is compared based on various metrics for its measurements. METHODS The automated algorithms proposed for the segmentation of carotid lumen are broadly classified into two different categories as: region-based and boundary-based. These techniques are discussed in detail specifying their pros and cons. Further, we discuss the challenges encountered in the segmentation process along with its quantitative assessment. Lastly, we present stenosis quantification and risk stratification strategies. RESULTS Even though, we have found more boundary-based approaches compared to region-based approaches in the literature, however, the region-based strategy yield more satisfactory performance. Novel risk stratification strategies are presented. On a patient database containing 203 patients, 9 patients are identified as high risk patients, whereas 27 patients are identified as medium risk patients. CONCLUSIONS We have presented different techniques for the lumen segmentation of the common carotid artery from B-mode ultrasound images and measurement of lumen diameter and inter-adventitial diameter. We believe that the issue regarding boundary-based techniques can be compensated by taking regional statistics embedded with boundary-based information.
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Affiliation(s)
- P Krishna Kumar
- Department of Computer Science and Engineering, National Institute of Technology Calicut, Kerala, India
| | - Tadashi Araki
- Division of Cardiovascular Medicine, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Jeny Rajan
- Department of Computer Science and Engineering, National Institute of Technology Karnataka, Surathkal, India
| | - John R Laird
- Heart and Vascular Institute, Adventist Health, St. Helena, CA, USA
| | | | - Jasjit S Suri
- Stroke Monitoring Division, AtheroPoint, Roseville, CA, USA; Department of Electrical Engineering, University of Idaho (Affl.), ID, USA.
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Xie Y, Wang J, Wang Z, Krug KA, Rinehart JD. Perfluorocarbon-loaded polydopamine nanoparticles as ultrasound contrast agents. NANOSCALE 2018; 10:12813-12819. [PMID: 29947626 PMCID: PMC6319376 DOI: 10.1039/c8nr02605j] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A versatile platform for the development of new ultrasound contrast agents is demonstrated through a one-pot synthesis and fluorination of submicron polydopamine (PDA-F) nanoparticles. The fluorophilicity of these particles allows loading with perfluoropentane (PFP) droplets that display strong and persistent ultrasound contrast in aqueous suspension and ex vivo tissue samples. Contrast under continuous imaging by color Doppler persists for 1 h in 135 nm PDA-F samples, even at maximum clinical imaging power (MI = 1.9). Additionally, use of a Cadence Contrast Pulse Sequence (CPS) results in a non-linear response suitable for imaging at 0.5 mg mL-1. Despite the PFP volatility and the lack of a hollow core, PDA-F particles display minimal signal loss after storage for over a week. The ability to tune size, metal-chelation, and add covalently-bound organic functionality offers myriad possibilities for extending this work to multimodal imaging, targeted delivery, and therapeutic functionality.
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Affiliation(s)
- Yijun Xie
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA,
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093, USA
| | - James Wang
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA,
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Zhao Wang
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA,
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Kelsey A. Krug
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA,
| | - Jeffrey D. Rinehart
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, USA,
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093, USA
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Shan R, Wang B, Wang A, Sun Z, Dong F, Liu J, Sun H. Endoglin-targeted contrast-enhanced ultrasound imaging in hepatoblastoma xenografts. Oncol Lett 2018; 16:3784-3790. [PMID: 30127989 PMCID: PMC6096263 DOI: 10.3892/ol.2018.9067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 06/04/2018] [Indexed: 12/11/2022] Open
Abstract
Angiogenesis is required for the growth of hepatoblastoma (HB). In the present study, an ultrasonic contrast agent, microbubbles (MB), was combined with an endoglin antibody, and then injected into nude mice with HB. This was conducted to detect specific binding to microvessels via non-linear harmonic imaging for tumor angiogenesis assessment. In addition, endoglin expression in experimental animals was measured using western blotting, reverse transcription-quantitative polymerase chain reaction and immunohistochemistry. In vitro, human umbilical vein endothelial cells (HUVECs) were co-cultured with conditioned media collected from HepG2 cells. Western blotting and reverse transcription-quantitative PCR was performed to detect the changes of endoglin expression. In targeted ultrasound imaging, it was determined that the differential targeted enhancement of MBendoglin was significantly higher than that of MBisotype. Over expression of endoglin was identified in the tumor of experimental nude mice; however, it was not present in the liver of the mice. Endoglin expression in HUVECs was significantly increased by co-culture with the conditioned media of HepG2 cells; therefore, the results suggest that endoglin is upregulated in angiogenic vessels in the HepG2 cell xenografts in nude mice. Thus, endoglin-targeted ultrasound imaging is presented as a potential approach for the diagnosis of liver carcinoma.
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Affiliation(s)
- Rong Shan
- Department of Ultrasonography, Jinan Infectious Disease Hospital, Jinan, Shandong 250021, P.R. China.,Department of Ultrasound, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Bei Wang
- Department of Ultrasonography, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Aiguang Wang
- Department of Oncology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Zongguo Sun
- The Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Fengyun Dong
- The Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Ju Liu
- The Medical Research Center, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Hongjun Sun
- Department of Ultrasonography, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong 250014, P.R. China
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Tummers WS, Willmann JK, Bonsing BA, Vahrmeijer AL, Gambhir SS, Swijnenburg RJ. Advances in Diagnostic and Intraoperative Molecular Imaging of Pancreatic Cancer. Pancreas 2018; 47:675-689. [PMID: 29894417 PMCID: PMC6003672 DOI: 10.1097/mpa.0000000000001075] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) has a dismal prognosis. To improve outcomes, there is a critical need for improved tools for detection, accurate staging, and resectability assessment. This could improve patient stratification for the most optimal primary treatment modality. Molecular imaging, used in combination with tumor-specific imaging agents, can improve established imaging methods for PDAC. These novel, tumor-specific imaging agents developed to target specific biomarkers have the potential to specifically differentiate between malignant and benign diseases, such as pancreatitis. When these agents are coupled to various types of labels, this type of molecular imaging can provide integrated diagnostic, noninvasive imaging of PDAC as well as image-guided pancreatic surgery. This review provides a detailed overview of the current clinical imaging applications, upcoming molecular imaging strategies for PDAC, and potential targets for imaging, with an emphasis on intraoperative imaging applications.
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Affiliation(s)
- Willemieke S. Tummers
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA. Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Juergen K. Willmann
- Department of Radiology, Molecular Imaging Program at Stanford, Stanford University, Stanford, CA. Juergen K. Willmann died January 8, 2018
| | - Bert A. Bonsing
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Sanjiv S. Gambhir
- Address correspondence to: R.J. Swijnenburg, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands (). Tel: +31 71 526 4005, Fax: +31 71 526 6750
| | - Rutger-Jan Swijnenburg
- Department of Surgery, Leiden University Medical Center, Albinusdreef 2, 2300 RC, Leiden, The Netherlands
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Song R, Peng C, Xu X, Wang J, Yu M, Hou Y, Zou R, Yao S. Controllable Formation of Monodisperse Polymer Microbubbles as Ultrasound Contrast Agents. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14312-14320. [PMID: 29637761 DOI: 10.1021/acsami.7b17258] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Microbubbles have been widely used as ultrasound contrast agents in clinical diagnosis and hold great potential for ultrasound-mediated therapy. However, polydispersed population and short half-life time (<10 min) of the microbubbles still limit their applications in imaging and therapy. To tackle these problems, we develop a microfluidic flow-focusing approach to produce monodisperse microbubbles stabilized by Poly(lactic-co-glycolic acid) (PLGA) as the polymer shell. The size of PLGA microbubbles can be tightly controlled from ∼600 nm to ∼7 μm with a coefficient of variation less than 4% in size distribution for ensuring highly homogeneous echogenic behavior of PLGA polymer microbubbles in ultrasound fields. Both in vitro and in vivo experiments showed that the monodisperse PLGA microbubbles had excellent echogenicity and elongated sonographic duration time (>3 times) for ultrasound imaging in comparison with the commercial lipid microbubbles.
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Affiliation(s)
| | - Chuan Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Department of Ultrasound , Sun Yat-sen University Cancer Center , 510060 Guangzhou , China
| | | | - Jianwei Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Department of Ultrasound , Sun Yat-sen University Cancer Center , 510060 Guangzhou , China
| | | | | | - Ruhai Zou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Department of Ultrasound , Sun Yat-sen University Cancer Center , 510060 Guangzhou , China
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Lai WF, Rogach AL, Wong WT. Chemistry and engineering of cyclodextrins for molecular imaging. Chem Soc Rev 2018; 46:6379-6419. [PMID: 28930330 DOI: 10.1039/c7cs00040e] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cyclodextrins (CDs) are naturally occurring cyclic oligosaccharides bearing a basket-shaped topology with an "inner-outer" amphiphilic character. The abundance of hydroxyl groups enables CDs to be functionalized with multiple targeting ligands and imaging elements. The imaging time, and the payload of different imaging elements, can be tuned by taking advantage of the commercial availability of CDs with different sizes of the cavity. This review aims to offer an outlook of the chemistry and engineering of CDs for the development of molecular probes. Complexation thermodynamics of CDs, and the corresponding implications for probe design, are also presented with examples demonstrating the structural and physiochemical roles played by CDs in the full ambit of molecular imaging. We hope that this review not only offers a synopsis of the current development of CD-based molecular probes, but can also facilitate translation of the incremental advancements from the laboratory to real biomedical applications by illuminating opportunities and challenges for future research.
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Affiliation(s)
- Wing-Fu Lai
- School of Pharmaceutical Sciences, Health Science Centre, Shenzhen University, Shenzhen, China.
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Abstract
OBJECTIVES The aim of this study was to demonstrate a new clinically translatable ultrasound molecular imaging approach, modulated acoustic radiation force-based imaging, which is capable of rapid and reliable detection of inflammation as validated in mouse abdominal aorta. MATERIALS AND METHODS Animal studies were approved by the Institutional Animal Care and Use Committee at the University of Virginia. C57BL/6 mice stimulated with tumor necrosis factor α, or fed with a high-fat diet, were used as inflammation (MInflammation) and diet-induced obesity (DIO) (MDIO) models, respectively. C57BL/6 mice, not exposed to tumor necrosis factor α or DIO, were used as controls (MNormal). P-selectin-targeted (MBP-selectin), vascular cell adhesion molecule (VCAM)-1-targeted (MBVCAM-1), and isotype control (MBControl) microbubbles were synthesized by conjugating anti-P-selectin, anti-VCAM-1, and isotype control antibodies to microbubbles, respectively. The abdominal aortas were imaged for 180 seconds during a constant infusion of microbubbles. A parameter, residual-to-saturation ratio (RSR), was used to assess P-selectin and VCAM-1. Statistical analysis was performed with the Student t test. RESULTS For the inflammation model, RSR of the MInflammation + MBP-selectin group was significantly higher (40.9%, P < 0.0005) than other groups. For the DIO model, RSR of the MDIO + MBVCAM-1 group was significantly higher (60.0%, P < 0.0005) than other groups. Immunohistochemistry staining of the abdominal aorta confirmed the expression of P-selectin and VCAM-1. CONCLUSIONS A statistically significant assessment of P-selectin and VCAM-1 in mouse abdominal aorta was achieved. This technique yields progress toward rapid targeted molecular imaging in large blood vessels and thus has the potential for early diagnosis, treatment selection, and risk stratification of atherosclerosis.
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Liu H, Ren F, Zhang H, Han Y, Qin H, Zeng J, Wang Y, Sun Q, Li Z, Gao M. Oral administration of highly bright Cr 3+ doped ZnGa 2O 4 nanocrystals for in vivo targeted imaging of orthotopic breast cancer. J Mater Chem B 2018; 6:1508-1518. [PMID: 32254215 DOI: 10.1039/c7tb03148c] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Near-infrared (NIR) long lasting persistent luminescence nanoparticles (PLNPs) have attracted considerable attention in the area of in vivo bioimaging, due to their background-free luminescence characteristics and deep tissue penetration. However, the low fluorescence quantum yield and short afterglow of the currently available PLNPs limit their applications. Here, water-soluble Cr3+-doped ZnGa2O4 PLNPs with the highest quantum yield (η = 20%) ever reported, bright NIR emission, and excellent colloidal stability were successfully prepared by a one-step hydrothermal method. The afterglow of the resultant nanocrystals lasted for more than 5 days and could be repeatedly reactivated by the light (λ = 657 nm) of a portable light emitting diode lamp after decay. These nanocrystals were functionalized with α,ω-dicarboxyl-terminated poly(ethylene glycol) and poly(acrylic acid) to improve their stability and biocompatibility, so that they could be conjugated with a c(RGDyK) peptide and labeled with 99mTc for targeted imaging of orthotopic breast cancer by afterglow luminescence imaging and single-photon emission computed tomography imaging. Our NIR-PLNP probes can effectively avoid tissue auto-fluorescence and the light scattering caused by continuous excitation during the diagnosis of cancer.
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Affiliation(s)
- Hanghang Liu
- Center for Molecular Imaging and Nuclear Medicine, State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Suzhou 215123, China.
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Shekhar H, Smith NJ, Raymond JL, Holland CK. Effect of Temperature on the Size Distribution, Shell Properties, and Stability of Definity ®. ULTRASOUND IN MEDICINE & BIOLOGY 2018; 44:434-446. [PMID: 29174045 PMCID: PMC5759968 DOI: 10.1016/j.ultrasmedbio.2017.09.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 05/08/2023]
Abstract
Physical characterization of an ultrasound contrast agent (UCA) aids in its safe and effective use in diagnostic and therapeutic applications. The goal of this study was to investigate the impact of temperature on the size distribution, shell properties, and stability of Definity®, a U.S. Food and Drug Administration-approved UCA used for left ventricular opacification. A Coulter counter was modified to enable particle size measurements at physiologic temperatures. The broadband acoustic attenuation spectrum and size distribution of Definity® were measured at room temperature (25 °C) and physiologic temperature (37 °C) and were used to estimate the viscoelastic shell properties of the agent at both temperatures. Attenuation and size distribution was measured over time to assess the effect of temperature on the temporal stability of Definity®. The attenuation coefficient of Definity® at 37 °C was as much as 5 dB higher than the attenuation coefficient measured at 25 °C. However, the size distributions of Definity® at 25 °C and 37 °C were similar. The estimated shell stiffness and viscosity decreased from 1.76 ± 0.18 N/m and 0.21 × 10-6 ± 0.07 × 10-6 kg/s at 25 °C to 1.01 ± 0.07 N/m and 0.04 × 10-6 ± 0.04 × 10-6 kg/s at 37 °C, respectively. Size-dependent differences in dissolution rates were observed within the UCA population at both 25 °C and 37 °C. Additionally, cooling the diluted UCA suspension from 37 °C to 25 °C accelerated the dissolution rate. These results indicate that although temperature affects the shell properties of Definity® and can influence the stability of Definity®, the size distribution of this agent is not affected by a temperature increase from 25 °C to 37 °C.
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Affiliation(s)
- Himanshu Shekhar
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, USA.
| | - Nathaniel J Smith
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - Jason L Raymond
- Department of Engineering Science, University of Oxford, Oxford, UK
| | - Christy K Holland
- Division of Cardiovascular Health and Disease, Department of Internal Medicine, University of Cincinnati, Cincinnati, Ohio, USA; Department of Biomedical Engineering, University of Cincinnati, Cincinnati, Ohio, USA
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Wang S, Hossack JA, Klibanov AL. Targeting of microbubbles: contrast agents for ultrasound molecular imaging. J Drug Target 2018; 26:420-434. [PMID: 29258335 DOI: 10.1080/1061186x.2017.1419362] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
For contrast ultrasound imaging, the most efficient contrast agents comprise highly compressible gas-filled microbubbles. These micrometer-sized particles are typically filled with low-solubility perfluorocarbon gases, and coated with a thin shell, often a lipid monolayer. These particles circulate in the bloodstream for several minutes; they demonstrate good safety and are already in widespread clinical use as blood pool agents with very low dosage necessary (sub-mg per injection). As ultrasound is an ubiquitous medical imaging modality, with tens of millions of exams conducted annually, its use for molecular/targeted imaging of biomarkers of disease may enable wider implementation of personalised medicine applications, precision medicine, non-invasive quantification of biomarkers, targeted guidance of biopsy and therapy in real time. To achieve this capability, microbubbles are decorated with targeting ligands, possessing specific affinity towards vascular biomarkers of disease, such as tumour neovasculature or areas of inflammation, ischaemia-reperfusion injury or ischaemic memory. Once bound to the target, microbubbles can be selectively visualised to delineate disease location by ultrasound imaging. This review discusses the general design trends and approaches for such molecular ultrasound imaging agents, which are currently at the advanced stages of development, and are evolving towards widespread clinical trials.
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Affiliation(s)
- Shiying Wang
- a Department of Biomedical Engineering , University of Virginia , Charlottesville , VA , USA
| | - John A Hossack
- a Department of Biomedical Engineering , University of Virginia , Charlottesville , VA , USA
| | - Alexander L Klibanov
- a Department of Biomedical Engineering , University of Virginia , Charlottesville , VA , USA.,b Cardiovascular Division (Department of Medicine), Robert M Berne Cardiovascular Research Center , University of Virginia , Charlottesville , VA , USA
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Hyun D, Abou-Elkacem L, Perez VA, Chowdhury SM, Willmann JK, Dahl JJ. Improved Sensitivity in Ultrasound Molecular Imaging With Coherence-Based Beamforming. IEEE TRANSACTIONS ON MEDICAL IMAGING 2018; 37:241-250. [PMID: 29293430 PMCID: PMC5764183 DOI: 10.1109/tmi.2017.2774814] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Ultrasound molecular imaging (USMI) is accomplished by detecting microbubble (MB) contrast agents that have bound to specific biomarkers, and can be used for a variety of imaging applications, such as the early detection of cancer. USMI has been widely utilized in preclinical imaging in mice; however, USMI in humans can be challenging because of the low concentration of bound MBs and the signal degradation caused by the presence of heterogenous soft tissue between the transducer and the lesion. Short-lag spatial coherence (SLSC) beamforming has been proposed as a robust technique that is less affected by poor signal quality than standard delay-and-sum (DAS) beamforming. In this paper, USMI performance was assessed using contrast-enhanced ultrasound imaging combined with DAS (conventional CEUS) and with SLSC (SLSC-CEUS). Each method was characterized by flow channel phantom experiments. In a USMI-mimicking phantom, SLSC-CEUS was found to be more robust to high levels of additive thermal noise than DAS, with a 6dB SNR improvement when the thermal noise level was +6dB or higher. However, SLSC-CEUS was also found to be insensitive to increases in MB concentration, making it a poor choice for perfusion imaging. USMI performance was also measured in vivo using VEGFR2-targeted MBs in mice with subcutaneous human hepatocellular carcinoma tumors, with clinical imaging conditions mimicked using a porcine tissue layer between the tumor and the transducer. SLSC-CEUS improved the SNR in each of ten tumors by an average of 41%, corresponding to 3.0dB SNR. These results indicate that the SLSC beamformer is well-suited for USMI applications because of its high sensitivity and robust properties under challenging imaging conditions.
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Detsky JS, Milot L, Ko YJ, Munoz-Schuffenegger P, Chu W, Czarnota G, Chung HT. Perfusion imaging of colorectal liver metastases treated with bevacizumab and stereotactic body radiotherapy. Phys Imaging Radiat Oncol 2018; 5:9-12. [PMID: 33458362 PMCID: PMC7807608 DOI: 10.1016/j.phro.2018.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 01/02/2018] [Accepted: 01/02/2018] [Indexed: 01/18/2023] Open
Abstract
Stereotactic body radiotherapy (SBRT) and bevacizumab are used in the treatment of colorectal liver metastases. This study prospectively evaluated changes in perfusion of liver metastases in seven patients treated with both bevacizumab and SBRT. Functional imaging using dynamic contrast-enhanced CT perfusion and contrast-enhanced ultrasound were performed at baseline, after bevacizumab, and after SBRT. After bevacizumab, a significant decrease was found in permeability (−28%, p < .05) and blood volume (−47%, p < .05), while SBRT led to a significant reduction in permeability (−22%, p < .05) and blood flow (−37%, p < .05). This study demonstrates that changes in perfusion can be detected after bevacizumab and SBRT.
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Affiliation(s)
- Jay S Detsky
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Laurent Milot
- Department of Medical Imaging, Odette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Medical Imaging, University of Toronto, Toronto, Ontario, Canada
| | - Yoo-Joung Ko
- Department of Medical Oncology, Odette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Medical Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Pablo Munoz-Schuffenegger
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - William Chu
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Gregory Czarnota
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Hans T Chung
- Department of Radiation Oncology, Odette Cancer Center, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
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Maier A, Plaza-Heck P, Meixner F, Guenther F, Kaufmann BA, Kramer M, Heidt T, Zirlik A, Hilgendorf I, Reinöhl J, Stachon P, Bronsert P, Birkemeyer R, Neudorfer I, Peter K, Bode C, von zur Mühlen C. A molecular intravascular ultrasound contrast agent allows detection of activated platelets on the surface of symptomatic human plaques. Atherosclerosis 2017; 267:68-77. [DOI: 10.1016/j.atherosclerosis.2017.10.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 10/19/2017] [Accepted: 10/20/2017] [Indexed: 12/21/2022]
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80
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Novel tetraphenylethylene diol amphiphile with aggregation-induced emission: self-assembly, cell imaging and tagging property. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:580-587. [DOI: 10.1016/j.msec.2017.08.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 07/19/2017] [Accepted: 08/10/2017] [Indexed: 02/06/2023]
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81
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Curaj A, Wu Z, Rix A, Gresch O, Sternkopf M, Alampour-Rajabi S, Lammers T, van Zandvoort M, Weber C, Koenen RR, Liehn EA, Kiessling F. Molecular Ultrasound Imaging of Junctional Adhesion Molecule A Depicts Acute Alterations in Blood Flow and Early Endothelial Dysregulation. Arterioscler Thromb Vasc Biol 2017; 38:40-48. [PMID: 29191926 DOI: 10.1161/atvbaha.117.309503] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 11/17/2017] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The junctional adhesion molecule A (JAM-A) is physiologically located in interendothelial tight junctions and focally redistributes to the luminal surface of blood vessels under abnormal shear and flow conditions accompanying atherosclerotic lesion development. Therefore, JAM-A was evaluated as a target for molecularly targeted ultrasound imaging of transient endothelial dysfunction under acute blood flow variations. APPROACH AND RESULTS Flow-dependent endothelial dysfunction was induced in apolipoprotein E-deficient mice (n=43) by carotid partial ligation. JAM-A expression was investigated by molecular ultrasound using antibody-targeted poly(n-butyl cyanoacrylate) microbubbles and validated with immunofluorescence. Flow disturbance and arterial remodeling were assessed using functional ultrasound. Partial ligation led to an immediate drop in perfusion at the ligated side and a direct compensatory increase at the contralateral side. This was accompanied by a strongly increased JAM-A expression and JAM-A-targeted microbubbles binding at the partially ligated side and by a moderate and temporary increase in the contralateral artery (≈14× [P<0.001] and ≈5× [P<0.001] higher than control, respectively), both peaking after 2 weeks. Subsequently, although JAM-A expression and JAM-A-targeted microbubbles binding persisted at a higher level at the partially ligated side, it completely normalized within 4 weeks at the contralateral side. CONCLUSIONS Temporary blood flow variations induce endothelial rearrangement of JAM-A, which can be visualized using JAM-A-targeted microbubbles. Thus, JAM-A may be considered as a marker of acute endothelial activation and dysfunction. Its imaging may facilitate the early detection of cardiovascular risk areas, and it enables the therapeutic prevention of their progression toward an irreversible pathological state.
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Affiliation(s)
- Adelina Curaj
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Zhuojun Wu
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Anne Rix
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Oliver Gresch
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Marieke Sternkopf
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Setareh Alampour-Rajabi
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Twan Lammers
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Marc van Zandvoort
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Christian Weber
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Rory R Koenen
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Elisa A Liehn
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.)
| | - Fabian Kiessling
- From the Institute for Molecular Cardiovascular Research (IMCAR) (A.C., Z.W., M.S., S.A.-R., M.v.Z., E.A.L.), and Institute for Experimental Molecular Imaging (ExMI) (A.C., Z.W., A.R., T.L., F.K.), University Hospital Aachen, RWTH Aachen, Germany; Victor Babes National Institute of Pathology, Bucharest, Romania (A.C.); AYOXXA Biosystems GmbH, Cologne, Germany (O.G.); Department of Targeted Therapeutics, University of Twente, Enschede, The Netherlands (T.L.); Department of Genetics and Molecular Cell Biology, School for Oncology and Developmental Biology (GROW), Maastricht University, The Netherlands (M.v.Z., R.R.K.); Department of Biochemistry, School for Cardiovascular Diseases (CARIM), Maastricht University, The Netherlands (M.v.Z., C.W.); German Centre for Cardiovascular Research, partner site Munich Heart Alliance (DZHK), Germany (C.W.); Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität München, Munich, Germany (C.W.); and Human Genetic Laboratory, University for Medicine and Pharmacy, Craiova, Romania (E.A.L.).
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The Use of Acoustic Radiation Force Decorrelation-Weighted Pulse Inversion for Enhanced Ultrasound Contrast Imaging. Invest Radiol 2017; 52:95-102. [PMID: 27495188 DOI: 10.1097/rli.0000000000000313] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
OBJECTIVES The use of ultrasound imaging for cancer diagnosis and screening can be enhanced with the use of molecularly targeted microbubbles. Nonlinear imaging strategies such as pulse inversion (PI) and "contrast pulse sequences" (CPS) can be used to differentiate microbubble signal, but often fail to suppress highly echogenic tissue interfaces. This failure results in false-positive detection and potential misdiagnosis. In this study, a novel acoustic radiation force (ARF)-based approach was developed for superior microbubble signal detection. The feasibility of this technique, termed ARF decorrelation-weighted PI (ADW-PI), was demonstrated in vivo using a subcutaneous mouse tumor model. MATERIALS AND METHODS Tumors were implanted in the hindlimb of C57BL/6 mice by subcutaneous injection of MC38 cells. Lipid-shelled microbubbles were conjugated to anti-VEGFR2 antibody and administered via bolus injection. An image sequence using ARF pulses to generate microbubble motion was combined with PI imaging on a Verasonics Vantage programmable scanner. ADW-PI images were generated by combining PI images with interframe signal decorrelation data. For comparison, CPS images of the same mouse tumor were acquired using a Siemens Sequoia clinical scanner. RESULTS Microbubble-bound regions in the tumor interior exhibited significantly higher signal decorrelation than static tissue (n = 9, P < 0.001). The application of ARF significantly increased microbubble signal decorrelation (n = 9, P < 0.01). Using these decorrelation measurements, ADW-PI imaging demonstrated significantly improved microbubble contrast-to-tissue ratio when compared with corresponding CPS or PI images (n = 9, P < 0.001). Contrast-to-tissue ratio improved with ADW-PI by approximately 3 dB compared with PI images and 2 dB compared with CPS images. CONCLUSIONS Acoustic radiation force can be used to generate adherent microbubble signal decorrelation without microbubble bursting. When combined with PI, measurements of the resulting microbubble signal decorrelation can be used to reconstruct images that exhibit superior suppression of highly echogenic tissue interfaces when compared with PI or CPS alone.
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83
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Volz KR, Evans KD, Kanner CD, Buford JA, Freimer M, Sommerich CM, Basso DM. Molecular Ultrasound Imaging for the Detection of Neural Inflammation: A Longitudinal Dosing Pilot Study. JOURNAL OF DIAGNOSTIC MEDICAL SONOGRAPHY 2017. [DOI: 10.1177/8756479317736250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Molecular ultrasound imaging provides the ability to detect physiologic processes noninvasively by targeting a variety of biomarkers in vivo. The current study was performed by exploiting an inflammatory biomarker, P-selectin, known to be present following spinal cord injury. Using a murine model (n = 6), molecular ultrasound imaging was performed using contrast microbubbles modified to target and adhere to P-selectin, prior to spinal cord injury (0D), acute stage postinjury (7D), and chronic stage (42D). Additionally, two imaging sessions were performed on each subject at specific time points, using doses of 30 μL and 100 μL. Upon analysis, targeted contrast analysis parameters were appreciably increased during the 7D scan compared with the 42D scan, without statistical significance. When examining the dose levels, the 30-μL dose demonstrated greater values than the 100-μL dose but lacked statistical significance. These findings provide additional preclinical evidence for the use of molecular ultrasound imaging for the possible detection of inflammation.
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Affiliation(s)
- Kevin R. Volz
- College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Kevin D. Evans
- College of Medicine, The Ohio State University, Columbus, OH, USA
| | | | - John A. Buford
- College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Miriam Freimer
- College of Medicine, The Ohio State University, Columbus, OH, USA
| | | | - D. Michele Basso
- College of Medicine, The Ohio State University, Columbus, OH, USA
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84
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Xu X, Song R, He M, Peng C, Yu M, Hou Y, Qiu H, Zou R, Yao S. Microfluidic production of nanoscale perfluorocarbon droplets as liquid contrast agents for ultrasound imaging. LAB ON A CHIP 2017; 17:3504-3513. [PMID: 28933795 DOI: 10.1039/c7lc00056a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Liquid perfluorocarbon (PFC) nanodroplets may have a better chance to extravasate through inter-endothelial gaps (400-800 nm) into tumor interstitium for extravascular imaging, which holds promise as an innovative strategy for imaging-guided drug delivery, early diagnosis of cancer and minimally invasive treatment of cancer. Currently available emulsion technologies still face challenges in reducing droplet sizes from the microscale to the nanoscale. To control size and ensure monodispersity of PFC nanodroplets, we developed a flame-shaped glass capillary and polydimethylsiloxane (PDMS) hybrid device that creates a concentric flow of the dispersed phase enclosed by the focusing continuous phase at the cross-junction. Through adjustment of the pressure applied, a stable tip-streaming mode can be obtained for PFC nanodroplet generation. Using this device, we synthesized various kinds of PFC nanodroplets as small as 200 nm in diameter with polydispersity index (PDI) <0.04. Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were carried out for the characterization of the PFC nanodroplets. Finally, ultrasound imaging was conducted to demonstrate that the liquid PFC nanodroplets can be used for enhancing the ultrasound contrast upon vaporization.
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Affiliation(s)
- Xiaonan Xu
- Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.
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85
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Molecular Imaging of Acute Cardiac Transplant Rejection: Animal Experiments and Prospects. Transplantation 2017; 101:1977-1986. [PMID: 28538050 DOI: 10.1097/tp.0000000000001780] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Acute rejection (AR) remains the biggest challenge during the first year after heart transplantation despite advances in immunosuppressive therapy. The early detection and curbing of AR are crucial to the survival of transplant recipients. However, as the criterion standard for AR, endomyocardial biopsy has several limitations because of its inherent invasiveness and morbidity. Traditional imaging techniques, such as echocardiography and cardiac magnetic resonance imaging, are of certain value for AR, but their diagnostic criteria and accuracy remain in question. Molecular imaging sheds new light on AR diagnosis because it can provide information about gene expression and the location of molecules and cells. This article reviews the latest research and applications of several typical modalities of molecular imaging used in AR and discusses their advantages and disadvantages.
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86
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Wang JP, Zhou XL, Yan JP, Zheng RQ, Wang W. Nanobubbles as ultrasound contrast agent for facilitating small cell lung cancer imaging. Oncotarget 2017; 8:78153-78162. [PMID: 29100457 PMCID: PMC5652846 DOI: 10.18632/oncotarget.18155] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/09/2017] [Indexed: 01/22/2023] Open
Abstract
Background This study is to investigate whether liposome-loaded nanobubbles (NBs) have the potentials to carry anti-pro-gastrin releasing peptide (proGRP) antibody and enhance ultrasound imaging of small cell lung cancer (SCLC). Methods NBs were loaded with an antibody against SCLC (H446 cell line). A nude mouse model of SCLC tumor was established by a subcutaneous injection of tumor cell suspension in the dorsal skin. Images for contrast-enhanced ultrasound (CEUS) of xenograft tumors in the model were obtained through an intravenous injection of blank and targeting NBs. Results The targeted NBs showed a high binding affinity (90.2 ± 3.24%) of the H446 cells in vitro as compared to the blank NBs that have no affinity of the cells. In process of tumor imaging, no mice died of the NB application. CEUS imaging of the targeted NBs manifested significant increases in half-peak time, area under the curve and peak intensity as compared to the blank NBs. In the model of SCLC, treatment with targeting NBs resulted in a large amount of fluorescent dye accumulated in the tumor tissue but not the liver tissue. Conclusion Our results indicate that NBs can carry antibody traveling to the SCLC cells, whereas application of NBs is safe and reliable in serving as ultrasound contrast agents for improving SCLC imaging.
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Affiliation(s)
- Jin-Ping Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, Shanxi, China.,Department of Ultrasound, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Xiao-Lin Zhou
- Radiation Medicine Laboratory, Institute of Radiation and Environmental Medicine, China Institute for Radiation Protection, Taiyuan, Shanxi, China
| | - Ji-Ping Yan
- Department of Ultrasound, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Rong-Qin Zheng
- Department of Ultrasound, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Wei Wang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, Shanxi, China
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Volz KR, Evans KD, Kanner CD, Buford JA, Freimer M, Sommerich CM. Molecular Ultrasound Imaging of the Spinal Cord for the Detection of Acute Inflammation. JOURNAL OF DIAGNOSTIC MEDICAL SONOGRAPHY 2017. [DOI: 10.1177/8756479317729671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Molecular ultrasound imaging provides the ability to detect physiologic processes non-invasively by targeting a wide variety of biological markers in vivo. The current study investigates the novel application of molecular ultrasound imaging for the detection of neural inflammation. Using a murine model with acutely injured spinal cords (n=31), subjects were divided into four groups, each being administered ultrasound contrast microbubbles bearing antibodies against various known inflammatory molecules (P-selectin, vascular cell adhesion protein 1 [VCAM-1], intercellular adhesion molecule 1 [ICAM-1], and isotype control) during molecular ultrasound imaging. Upon administration of the targeted contrast agent, ultrasound imaging of the injured spinal cord was performed at 40MHz for seven minutes, followed by a bursting pulse. We observed significantly enhanced signals from contrast targeted to P-selectin and VCAM-1, using a variety of outcome measures. These findings provide preclinical evidence that molecular ultrasound imaging could be a useful tool in the detection of neural inflammation.
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Affiliation(s)
- Kevin R. Volz
- College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Kevin D. Evans
- College of Medicine, The Ohio State University, Columbus, OH, USA
| | | | - John A. Buford
- College of Medicine, The Ohio State University, Columbus, OH, USA
| | - Miriam Freimer
- College of Medicine, The Ohio State University, Columbus, OH, USA
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First-in-Human Ultrasound Molecular Imaging With a VEGFR2-Specific Ultrasound Molecular Contrast Agent (BR55) in Prostate Cancer. Invest Radiol 2017; 52:419-427. [DOI: 10.1097/rli.0000000000000362] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mullick Chowdhury S, Lee T, Willmann JK. Ultrasound-guided drug delivery in cancer. Ultrasonography 2017; 36:171-184. [PMID: 28607323 PMCID: PMC5494871 DOI: 10.14366/usg.17021] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/23/2017] [Accepted: 05/01/2017] [Indexed: 12/14/2022] Open
Abstract
Recent advancements in ultrasound and microbubble (USMB) mediated drug delivery technology has shown that this approach can improve spatially confined delivery of drugs and genes to target tissues while reducing systemic dose and toxicity. The mechanism behind enhanced delivery of therapeutics is sonoporation, the formation of openings in the vasculature, induced by ultrasound-triggered oscillations and destruction of microbubbles. In this review, progress and challenges of USMB mediated drug delivery are summarized, with special focus on cancer therapy.
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Affiliation(s)
| | - Taehwa Lee
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Jürgen K. Willmann
- Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
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90
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Preparation and characterization of a novel silicon-modified nanobubble. PLoS One 2017; 12:e0178031. [PMID: 28557995 PMCID: PMC5448765 DOI: 10.1371/journal.pone.0178031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 05/08/2017] [Indexed: 01/05/2023] Open
Abstract
Nanobubbles (NBs) opened a new field of ultrasound imaging. There is still no practical method to control the diameter of bubbles. In this study, we developed a new method to control the size by incorporating of silicon hybrid lipids into the bubble membrane. The range of particle size of resulting NBs is between 523.02 ± 46.45 to 857.18 ± 82.90, smaller than the conventional microbubbles. The size of resulting NBs increased with the decrease in amount of silicon hybrid lipids, indicating the diameter of NBs can be regulated through modulating the ratio of silicon hybrid lipids in the bubble shell. Typical harmonic signals could be detected. The in vitro and in vivo ultrasound imaging experiments demonstrated these silicon-modified NBs had significantly improved ultrasound contrast enhancement abilities. Cytotoxicity assays revealed that these NBs had no obvious cytotoxicity to the 293 cell line at the tested bubble concentration. Our results showed that the novel NBs could use as nanoscale ultrasound contrast agents, providing the foundation for NBs in future applications including contrast-enhanced imaging and drug/gene delivery.
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91
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Güvener N, Appold L, de Lorenzi F, Golombek SK, Rizzo LY, Lammers T, Kiessling F. Recent advances in ultrasound-based diagnosis and therapy with micro- and nanometer-sized formulations. Methods 2017; 130:4-13. [PMID: 28552267 DOI: 10.1016/j.ymeth.2017.05.018] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/11/2017] [Accepted: 05/21/2017] [Indexed: 01/15/2023] Open
Abstract
Ultrasound (US) is one of the most frequently used imaging methods in the clinic. The broad spectrum of its applications can be increased by the use of gas-filled microbubbles (MB) as ultrasound contrast agents (UCA). In recent years, also nanoscale UCA like nanobubbles (NB), echogenic liposomes (ELIP) and nanodroplets have been developed, which in contrast to MB, are able to extravasate from the vessels into the tissue. New disease-specific UCA have been designed for the assessment of tissue biomarkers and advanced US to a molecular imaging modality. For this purpose, specific binding moieties were coupled to the UCA surface. The vascular endothelial growth factor receptor-2 (VEGFR-2) and P-/E-selectin are prominent examples of molecular US targets to visualize tumor blood vessels and inflammatory diseases, respectively. Besides their application in contrast-enhanced imaging, MB can also be employed for drug delivery to tumors and across the blood-brain barrier (BBB). This review summarizes the development of micro- and nanoscaled UCA and highlights recent advances in diagnostic and therapeutic applications, which are ready for translation into the clinic.
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Affiliation(s)
- Nihan Güvener
- Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
| | - Lia Appold
- Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
| | - Federica de Lorenzi
- Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
| | - Susanne K Golombek
- Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
| | - Larissa Y Rizzo
- Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, University Clinic and Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Pauwelsstrasse 20, 52074 Aachen, Germany.
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92
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Park SM, Aalipour A, Vermesh O, Yu JH, Gambhir SS. Towards clinically translatable in vivo nanodiagnostics. NATURE REVIEWS. MATERIALS 2017; 2:17014. [PMID: 29876137 PMCID: PMC5985817 DOI: 10.1038/natrevmats.2017.14] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Nanodiagnostics as a field makes use of fundamental advances in nanobiotechnology to diagnose, characterize and manage disease at the molecular scale. As these strategies move closer to routine clinical use, a proper understanding of different imaging modalities, relevant biological systems and physical properties governing nanoscale interactions is necessary to rationally engineer next-generation bionanomaterials. In this Review, we analyse the background physics of several clinically relevant imaging modalities and their associated sensitivity and specificity, provide an overview of the materials currently used for in vivo nanodiagnostics, and assess the progress made towards clinical translation. This work provides a framework for understanding both the impressive progress made thus far in the nanodiagnostics field as well as presenting challenges that must be overcome to obtain widespread clinical adoption.
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Affiliation(s)
- Seung-Min Park
- Department of Radiology, Stanford University School of Medicine
- Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, California 94305, USA
| | - Amin Aalipour
- Department of Radiology, Stanford University School of Medicine
- Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, California 94305, USA
| | - Ophir Vermesh
- Department of Radiology, Stanford University School of Medicine
- Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, California 94305, USA
| | - Jung Ho Yu
- Department of Radiology, Stanford University School of Medicine
- Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, California 94305, USA
| | - Sanjiv S Gambhir
- Department of Radiology, Stanford University School of Medicine
- Molecular Imaging Program at Stanford, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, California 94305, USA
- Canary Center at Stanford for Cancer Early Detection, Stanford University School of Medicine, 3155 Porter Drive, Palo Alto, California 94304, USA
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93
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Tang H, Zheng Y, Chen Y. Materials Chemistry of Nanoultrasonic Biomedicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604105. [PMID: 27991697 DOI: 10.1002/adma.201604105] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/12/2016] [Indexed: 06/06/2023]
Abstract
As a special cross-disciplinary research frontier, nanoultrasonic biomedicine refers to the design and synthesis of nanomaterials to solve some critical issues of ultrasound (US)-based biomedicine. The concept of nanoultrasonic biomedicine can also overcome the drawbacks of traditional microbubbles and promote the generation of novel US-based contrast agents or synergistic agents for US theranostics. Here, we discuss the recent developments of material chemistry in advancing the nanoultrasonic biomedicine for diverse US-based bio-applications. We initially introduce the design principles of novel nanoplatforms for serving the nanoultrasonic biomedicine, from the viewpoint of synthetic material chemistry. Based on these principles and diverse US-based bio-application backgrounds, the representative proof-of-concept paradigms on this topic are clarified in detail, including nanodroplet vaporization for intelligent/responsive US imaging, multifunctional nano-contrast agents for US-based multi-modality imaging, activatable synergistic agents for US-based therapy, US-triggered on-demand drug releasing, US-enhanced gene transfection, US-based synergistic therapy on combating the cancer and potential toxicity issue of screening various nanosystems suitable for nanoultrasonic biomedicine. It is highly expected that this novel nanoultrasonic biomedicine and corresponding high performance in US imaging and therapy can significantly promote the generation of new sub-discipline of US-based biomedicine by rationally integrating material chemistry and theranostic nanomedicine with clinical US-based biomedicine.
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Affiliation(s)
- Hailin Tang
- Department of Diagnostic Ultrasound, Tongde Hospital of Zhejiang Province, Hangzhou, 310012, P. R. China
| | - Yuanyi Zheng
- Shanghai Institute of Ultrasound in Medicine, Shanghai Jiaotong University Affiliated, Shanghai Sixth People's Hospital, Shanghai, 200233, P. R. China
| | - Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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94
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Yang P, Luo X, Wang S, Wang F, Tang C, Wang C. Biodegradable yolk-shell microspheres for ultrasound/MR dual-modality imaging and controlled drug delivery. Colloids Surf B Biointerfaces 2017; 151:333-343. [DOI: 10.1016/j.colsurfb.2016.12.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/30/2016] [Accepted: 12/23/2016] [Indexed: 12/18/2022]
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95
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Turco S, Tardy I, Frinking P, Wijkstra H, Mischi M. Quantitative ultrasound molecular imaging by modeling the binding kinetics of targeted contrast agent. Phys Med Biol 2017; 62:2449-2464. [DOI: 10.1088/1361-6560/aa5e9a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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96
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Lauber DT, Fülöp A, Kovács T, Szigeti K, Máthé D, Szijártó A. State of the art in vivo imaging techniques for laboratory animals. Lab Anim 2017; 51:465-478. [PMID: 28948893 DOI: 10.1177/0023677217695852] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
In recent decades, imaging devices have become indispensable tools in the basic sciences, in preclinical research and in modern drug development. The rapidly evolving high-resolution in vivo imaging technologies provide a unique opportunity for studying biological processes of living organisms in real time on a molecular level. State of the art small-animal imaging modalities provide non-invasive images rich in quantitative anatomical and functional information, which renders longitudinal studies possible allowing precise monitoring of disease progression and response to therapy in models of different diseases. The number of animals in a scientific investigation can be substantially reduced using imaging techniques, which is in full compliance with the ethical endeavours for the 3R (reduction, refinement, replacement) policies formulated by Russell and Burch; furthermore, biological variability can be alleviated, as each animal serves as its own control. The most suitable and commonly used imaging modalities for in vivo small-animal imaging are optical imaging (OI), ultrasonography (US), computed tomography (CT), magnetic resonance imaging (MRI), and finally the methods of nuclear medicine: positron emission tomography (PET) and single photon emission computed tomography (SPECT).
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Affiliation(s)
- David Tibor Lauber
- 1 Hepato-Pancreatico-Biliary Surgery Research Center Hungary, 1st Department of Surgery, Semmelweis University, Budapest, Hungary
| | - András Fülöp
- 1 Hepato-Pancreatico-Biliary Surgery Research Center Hungary, 1st Department of Surgery, Semmelweis University, Budapest, Hungary
| | - Tibor Kovács
- 1 Hepato-Pancreatico-Biliary Surgery Research Center Hungary, 1st Department of Surgery, Semmelweis University, Budapest, Hungary
- 2 Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Krisztián Szigeti
- 2 Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
| | - Domokos Máthé
- 2 Department of Biophysics and Radiation Biology, Semmelweis University, Budapest, Hungary
- 3 CROmed Translational Research Centers Ltd, Budapest, Hungary
| | - Attila Szijártó
- 1 Hepato-Pancreatico-Biliary Surgery Research Center Hungary, 1st Department of Surgery, Semmelweis University, Budapest, Hungary
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97
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Diagnostic and Prognostic Utility of Non-Invasive Multimodal Imaging in Chronic Wound Monitoring: a Systematic Review. J Med Syst 2017; 41:46. [PMID: 28194684 DOI: 10.1007/s10916-016-0679-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 12/12/2016] [Indexed: 01/09/2023]
Abstract
Monitoring chronic wound [CW] healing is a challenging issue for clinicians across the world. Moreover, the health and cost burden of CW are escalating at a disturbing rate due to a global rise in population of elderly and diabetic cases. The conventional approach includes visual contour, sketches, or more rarely tracings. However, such conventional techniques bring forth infection, pain, allergies. Furthermore, these methods are subjective as well as time-consuming. As such, nowadays, non-touching and non-invasive CW monitoring system based on imaging techniques are gaining importance. They not only reduce patients' discomfort but also provide rapid wound diagnosis and prognosis. This review provides a survey of different types of CW characteristics, their healing mechanism and the multimodal non-invasive imaging methods that have been used for their diagnosis and prognosis. Current clinical practices as well as personal health systems [m-health and e-health] for CW monitoring have been discussed.
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98
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Zhang H, Ingham ES, Gagnon MKJ, Mahakian LM, Liu J, Foiret JL, Willmann JK, Ferrara KW. In vitro characterization and in vivo ultrasound molecular imaging of nucleolin-targeted microbubbles. Biomaterials 2017; 118:63-73. [PMID: 27940383 PMCID: PMC5279957 DOI: 10.1016/j.biomaterials.2016.11.026] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 11/11/2016] [Accepted: 11/20/2016] [Indexed: 12/12/2022]
Abstract
Nucleolin (NCL) plays an important role in tumor vascular development. An increased endothelial expression level of NCL has been related to cancer aggressiveness and prognosis and has been detected clinically in advanced tumors. Here, with a peptide targeted to NCL (F3 peptide), we created an NCL-targeted microbubble (MB) and compared the performance of F3-conjugated MBs with non-targeted (NT) MBs both in vitro and in vivo. In an in vitro study, F3-conjugated MBs bound 433 times more than NT MBs to an NCL-expressing cell line, while pretreating cells with 0.5 mM free F3 peptide reduced the binding of F3-conjugated MBs by 84%, n = 4, p < 0.001. We then set out to create a method to extract both the tumor wash-in and wash-out kinetics and tumor accumulation following a single injection of targeted MBs. In order to accomplish this, a series of ultrasound frames (a clip) was recorded at the time of injection and subsequent time points. Each pixel within this clip was analyzed for the minimum intensity projection (MinIP) and average intensity projection (AvgIP). We found that the MinIP robustly demonstrates enhanced accumulation of F3-conjugated MBs over the range of tumor diameters evaluated here (2-8 mm), and the difference between the AvgIP and the MinIP quantifies inflow and kinetics. The inflow and clearance were similar for unbound F3-conjugated MBs, control (non-targeted) and scrambled control agents. Targeted agent accumulation was confirmed by a high amplitude pulse and by a two-dimensional Fourier Transform technique. In summary, F3-conjugated MBs provide a new imaging agent for ultrasound molecular imaging of cancer vasculature, and we have validated metrics to assess performance using low mechanical index strategies that have potential for use in human molecular imaging studies.
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Affiliation(s)
- Hua Zhang
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | - Elizabeth S Ingham
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | - M Karen J Gagnon
- Department of Environmental Health and Safety, University of California, Davis, CA, 95616, USA
| | - Lisa M Mahakian
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | - Jingfei Liu
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | - Josquin L Foiret
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | | | - Katherine W Ferrara
- Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA.
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99
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Ni M, Zhuo S, So PTC, Yu H. Fluorescent probes for nanoscopy: four categories and multiple possibilities. JOURNAL OF BIOPHOTONICS 2017; 10:11-23. [PMID: 27221311 PMCID: PMC5775479 DOI: 10.1002/jbio.201600042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 04/08/2016] [Accepted: 05/03/2016] [Indexed: 05/08/2023]
Abstract
Nanoscopy enables breaking down the light diffraction limit and reveals the nanostructures of objects being studied using light. In 2014, three scientists pioneered the development of nanoscopy and won the Nobel Prize in Chemistry. This recognized the achievement of the past twenty years in the field of nanoscopy. However, fluorescent probes used in the field of nanoscopy are still numbered. Here, we review the currently available four categories of probes and existing methods to improve the performance of probes.
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Affiliation(s)
- Ming Ni
- Fujian Provincial Key Laboratory for Photonics Technology & Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou 350007, China
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
- Corresponding authors: ; ;
| | - Shuangmu Zhuo
- Fujian Provincial Key Laboratory for Photonics Technology & Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Normal University, Fuzhou 350007, China
- Singapore-MIT Alliance for Research and Technology, 1 CREATE Way, #10-01 CREATE Tower, Singapore 138602, Singapore
- Corresponding authors: ; ;
| | - Peter T. C. So
- Singapore-MIT Alliance for Research and Technology, 1 CREATE Way, #10-01 CREATE Tower, Singapore 138602, Singapore
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Hanry Yu
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
- Singapore-MIT Alliance for Research and Technology, 1 CREATE Way, #10-01 CREATE Tower, Singapore 138602, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, MD9-04-11, 2 Medical Drive, Singapore 117597, Singapore
- Mechanobiology Institute, National University of Singapore, T-Lab, #05-01, 5A Engineering Drive 1, Singapore 117411, Singapore
- Corresponding authors: ; ;
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100
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Wang S, Herbst EB, Pye SD, Moran CM, Hossack JA. Pipe Phantoms With Applications in Molecular Imaging and System Characterization. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2017; 64:39-52. [PMID: 27845659 PMCID: PMC5490078 DOI: 10.1109/tuffc.2016.2626465] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pipe (vessel) phantoms mimicking human tissue and blood flow are widely used for cardiovascular related research in medical ultrasound. Pipe phantom studies require the development of materials and liquids that match the acoustic properties of soft tissue, blood vessel wall, and blood. Over recent years, pipe phantoms have been developed to mimic the molecular properties of the simulated blood vessels. In this paper, the design, construction, and functionalization of pipe phantoms are introduced and validated for applications in molecular imaging and ultrasound imaging system characterization. There are three major types of pipe phantoms introduced: 1) a gelatin-based pipe phantom; 2) a polydimethylsiloxane-based pipe phantom; and 3) the "Edinburgh pipe phantom." These phantoms may be used in the validation and assessment of the dynamics of microbubble-based contrast agents and, in the case of a small diameter tube phantom, for assessing imaging system spatial resolution/contrast performance. The materials and procedures required to address each of the phantoms are described.
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