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Ma X, Shen E, Yuan J, Gong L, Kong W, Jin Z, Tao C, Liu X. Volumetric B-mode ultrasound and Doppler Imaging: Automatic Tracking With One Single Camera. Ultrason Imaging 2024; 46:90-101. [PMID: 38041446 DOI: 10.1177/01617346231213385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
Vascular diseases may occur in the upper extremities, and the lesions can span the entire length of the blood vessel. One of the most popular methods to identify vascular disorders is ultrasound Doppler imaging. However, traditional two-dimensional (2D) ultrasound Doppler imaging cannot capture the entire length of a long vessel in one image. Medical professionals often have to painstakingly reconstruct three-dimensional (3D) data using 2D ultrasound images to locate the lesions, especially for large blood vessels. 3D ultrasound Doppler imaging can display the morphological structure of blood vessels and the distribution of lesions more directly, providing a more comprehensive view compared to 2D imaging. In this work, we propose a wide-range 3D volumetric ultrasound Doppler imaging system with dual modality, in which a high-definition camera is adopted to automatically track the movement of the ultrasound transducer, simultaneously capturing a corresponding sequence of 2D ultrasound Doppler images. We conducted experiments on human arms using our proposed system and separately with X-ray computerized tomography (X-CT). The comparison results prove the potential value of our proposed system in the diagnosis of arm vascular diseases.
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Affiliation(s)
- Xiaoli Ma
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Enxiang Shen
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Jie Yuan
- School of Electronic Science and Engineering, Nanjing University, Nanjing, China
| | - Li Gong
- Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wentao Kong
- Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zhibin Jin
- Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Chao Tao
- School of Physics, Nanjing University, Nanjing, China
| | - Xiaojun Liu
- School of Physics, Nanjing University, Nanjing, China
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2
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Li D, Li X, Li J, Wang Y, Tan F, Li X. Development of a fibroblast activation protein-targeted PET/NIR dual-modality probe and its application in head and neck cancer. Front Bioeng Biotechnol 2023; 11:1291824. [PMID: 38026901 PMCID: PMC10654779 DOI: 10.3389/fbioe.2023.1291824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose: The combination of near-infrared (NIR) and positron emission tomography (PET) imaging presents an opportunity to utilize the benefits of dual-modality imaging for tumor visualization. Based on the observation that fibroblast activation protein (FAP) is upregulated in cancer-associated fibroblasts (CAFs) infiltrating all solid tumors, including head and neck squamous cell carcinoma (HNSCC), we developed the novel PET/NIR probe [68Ga]Ga-FAP-2286-ICG. Preclinically, the specificity, biodistribution and diagnostic properties were evaluated. Methods: Cell uptake assays were completed with the U87MG cell to evaluate the specificity of the [68Ga]Ga-FAP-2286-ICG. The tumor-targeting efficiency, biodistribution and optimal imaging time window of the [68Ga]Ga-FAP-2286-ICG were studied in mice bearing U87MG xenografts. HNSCC tumor-bearing mice were used to evaluate the feasibility of [68Ga]Ga-FAP-2286-ICG for tumor localization and guided surgical resection of HNSCC tumors. Results: The in vitro experiments confirmed that [68Ga]Ga-FAP-2286-ICG showed good stability, specific targeting of the probe to FAP, and the durable retention effect in high-expressing FAP tumors U87MG cell. Good imaging properties such as good tumor uptake, high tumor-to-background ratios (5.44 ± 0.74) and specificity, and tumor contouring were confirmed in studies with mice bearing the U87MG xenograft. PET/CT imaging of the probe in head and neck cancer-bearing mice demonstrated specific uptake of the probe in the tumor with a clear background. Fluorescence imaging further validated the value of the probe in guiding surgical resection and achieving precise removal of the tumor and residual lesions. Conclusion: In a preclinical model, these attractive [68Ga]Ga-FAP-2286-ICG PET/NIR imaging acquired in head and neck cancer make it a promising FAP-targeted multimodal probe for clinical translation.
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Affiliation(s)
- Danni Li
- Department of ORL-HNS, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xuran Li
- Department of ORL-HNS, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jiaojiao Li
- Department of ORL-HNS, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yanhong Wang
- Department of ORL-HNS, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Fei Tan
- Department of ORL-HNS, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
- The Royal College of Surgeons in Ireland, Dublin, Ireland
- The Royal College of Surgeons of England, London, United Kingdom
| | - Xiao Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China
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3
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Deng L, Fan Z, Chen B, Zhai H, He H, He C, Sun Y, Wang Y, Ma H. A Dual-Modality Imaging Method Based on Polarimetry and Second Harmonic Generation for Characterization and Evaluation of Skin Tissue Structures. Int J Mol Sci 2023; 24:ijms24044206. [PMID: 36835613 PMCID: PMC9966533 DOI: 10.3390/ijms24044206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
The characterization and evaluation of skin tissue structures are crucial for dermatological applications. Recently, Mueller matrix polarimetry and second harmonic generation microscopy have been widely used in skin tissue imaging due to their unique advantages. However, the features of layered skin tissue structures are too complicated to use a single imaging modality for achieving a comprehensive evaluation. In this study, we propose a dual-modality imaging method combining Mueller matrix polarimetry and second harmonic generation microscopy for quantitative characterization of skin tissue structures. It is demonstrated that the dual-modality method can well divide the mouse tail skin tissue specimens' images into three layers of stratum corneum, epidermis, and dermis. Then, to quantitatively analyze the structural features of different skin layers, the gray level co-occurrence matrix is adopted to provide various evaluating parameters after the image segmentations. Finally, to quantitatively measure the structural differences between damaged and normal skin areas, an index named Q-Health is defined based on cosine similarity and the gray-level co-occurrence matrix parameters of imaging results. The experiments confirm the effectiveness of the dual-modality imaging parameters for skin tissue structure discrimination and assessment. It shows the potential of the proposed method for dermatological practices and lays the foundation for further, in-depth evaluation of the health status of human skin.
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Affiliation(s)
- Liangyu Deng
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Zhipeng Fan
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Binguo Chen
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
| | - Haoyu Zhai
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
| | - Honghui He
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Correspondence: (H.H.); (C.H.)
| | - Chao He
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK
- Correspondence: (H.H.); (C.H.)
| | - Yanan Sun
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Yi Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Hui Ma
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Department of Physics, Tsinghua University, Beijing 100084, China
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Wang J, Wang Y, Jia J, Liu C, Ni D, Sun L, Guo Z. Dual-Modality Molecular Imaging of Tumor via Quantum Dots-Liposome-Microbubble Complexes. Pharmaceutics 2022; 14:pharmaceutics14112510. [PMID: 36432701 PMCID: PMC9699378 DOI: 10.3390/pharmaceutics14112510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/07/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
Molecular imaging has demonstrated promise for evaluating the expression levels of biomarkers for the early prediction of tumor progression and metastasis. However, most of the commonly used molecular imaging modalities are relatively single and have difficulties imaging complex biological processes. Here, we fabricated αvβ3-integrin-targeted quantum-dots-loaded liposome-microbubble (iRGD-QDLM) complexes that combined ultrasound imaging with optical imaging. The resulting iRGD-QDLM has excellent binding capability to 4T1 breast cancer cells. Ultrasound molecular imaging of 4T1 tumors demonstrated that significantly enhanced ultrasound molecular signals could be observed in comparison with non-targeted QDLM. Importantly, our study also suggested that iRGD-QDL on the surface of microbubbles could be delivered into a tumor by ultrasound-mediated microbubble destruction and adhered to αvβ3 integrin on breast cancer cells, achieving transvascular fluorescent imaging. Our study provides a novel approach to dual-modality molecular imaging of αvβ3 integrin in the tumor tissue.
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Affiliation(s)
- Jieqiong Wang
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai 201206, China
| | - Yuanyuan Wang
- Center for Cell and Gene Circuit Design, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Jie Jia
- Department of Rehabilitation Medicine, Huashan Hospital, Fudan University, Shanghai 201206, China
| | - Chenxing Liu
- Center for Cell and Gene Circuit Design, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Dong Ni
- Medical Ultrasound Image Computing (MUSIC) Laboratory, Shenzhen University, Shenzhen 518055, China
| | - Litao Sun
- Department of Ultrasound Medicine, Zhejiang Provincial People’s Hospital (Hangzhou Medical College Affiliated People’s Hospital), Hangzhou 310014, China
- Correspondence: (L.S.); (Z.G.); Tel.: +86-755-2962-9333 (Z.G.)
| | - Zhijie Guo
- Department of Ultrasound, Shenzhen Bao’an Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen 518133, China
- Correspondence: (L.S.); (Z.G.); Tel.: +86-755-2962-9333 (Z.G.)
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5
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Meng X, Zhang F, Guo H, Zhang C, Hu H, Wang W, Liu J, Shuai X, Cao Z. One-Pot Approach to Fe 2+ /Fe 3+ -Based MOFs with Enhanced Catalytic Activity for Fenton Reaction. Adv Healthc Mater 2021; 10:e2100780. [PMID: 34390223 DOI: 10.1002/adhm.202100780] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/26/2021] [Indexed: 02/06/2023]
Abstract
Smart theragnostic nanoplatforms exhibit great promise in clinical tumor treatment. The Fe-based Fenton reaction in tumor sites may generate reactive oxygen species to kill cancer cells with negligible side effects on normal tissues. However, its efficiency and duration are limited by the low intracellular concentration of H2 O2 , weak acidicity of tumor tissue, and low catalytic activity of conventional Fenton reagents. Herein, a facile strategy is proposed to efficiently overcome these obstacles. An efficient enzymatic/Fenton-starvation nanoreactor PMs loaded with glucose oxidase and perfluoropentane (PGPMs) is constructed through synthesizing methoxy-PEG-carboxymethy-modified iron (Fe2+ /Fe3+ )-based metal-organic frameworks (PMs), followed by loading glucose oxidase (GOx) and perfluoropentane (PFP). PGPMs accumulating in the tumor tissue exhibit tumor microenvironment-responsive biodegradable behavior and unusual catalytic activity for Fenton reaction advantageous over Fe3+ -based MOFs. Meanwhile, encapsulation of GOx into PGPMs further significantly increases the catalytic activity for Fenton reaction and also induces starvation therapy. PGPMs also exhibit considerable capabilities of ultrasound and tumor microenvironment-responsive T2 MR imaging applicable for contrast-enhanced diagnosis. Both in vitro and in vivo studies demonstrate the great diagnostic and therapeutic potentials of this nanoreactor in tumor.
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Affiliation(s)
- Xin Meng
- School of Biomedical Engineering Sun Yat‐Sen University Guangzhou Guangdong 510006 China
| | - Fan Zhang
- School of Biomedical Engineering Sun Yat‐Sen University Guangzhou Guangdong 510006 China
| | - Huanling Guo
- Department of Medical Ultrasound Institute of Diagnostic and Interventional Ultrasound The First Affiliated Hospital Sun Yat‐Sen University Guangzhou Guangdong 510080 China
| | - Chunyang Zhang
- Department of Medical Ultrasound Institute of Diagnostic and Interventional Ultrasound The First Affiliated Hospital Sun Yat‐Sen University Guangzhou Guangdong 510080 China
| | - Hangtong Hu
- Department of Medical Ultrasound Institute of Diagnostic and Interventional Ultrasound The First Affiliated Hospital Sun Yat‐Sen University Guangzhou Guangdong 510080 China
| | - Wei Wang
- Department of Medical Ultrasound Institute of Diagnostic and Interventional Ultrasound The First Affiliated Hospital Sun Yat‐Sen University Guangzhou Guangdong 510080 China
| | - Jie Liu
- School of Biomedical Engineering Sun Yat‐Sen University Guangzhou Guangdong 510006 China
| | - Xintao Shuai
- PCFM Lab of Ministry of Education School of Chemistry and Chemical Engineering Sun Yat‐Sen University Guangzhou Guangdong 510275 China
| | - Zhong Cao
- School of Biomedical Engineering Sun Yat‐Sen University Guangzhou Guangdong 510006 China
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6
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Li H, Shi S, Wu M, Shen W, Ren J, Mei Z, Ran H, Wang Z, Tian Y, Gao J, Zhao H. iRGD Peptide-Mediated Liposomal Nanoparticles with Photoacoustic/Ultrasound Dual-Modality Imaging for Precision Theranostics Against Hepatocellular Carcinoma. Int J Nanomedicine 2021; 16:6455-6475. [PMID: 34584411 PMCID: PMC8464346 DOI: 10.2147/ijn.s325891] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/11/2021] [Indexed: 12/29/2022] Open
Abstract
Purpose Prepare a multifunctional ultrasound molecular probe, cell-penetrating peptide-modified 10-hydroxycamptothecin-loaded phase-transformation lipid nanoparticles (iRGD-ICG-10-HCPT-PFP-NPs), and to combine iRGD-ICG-10-HCPT-PFP -NPs with low-intensity focused ultrasound (LIFU) for precision theranostics against hepatocellular carcinoma (HCC). Materials and Methods The morphology of nanoparticles (NPs) and iRGD-ICG-10-HCPT-PFP-NPs was detected. In vitro, we examined targeting ability by flow cytometry and confocal laser scanning microscopy (CLSM), assessed penetration ability into hepatoma cells, and assessed killing ability. In vivo, we examined the targeting ability of the NPs with a photoacoustic (PA) imager and fluorometer (FL), while LIFU irradiation was used to trigger the release of chemotherapeutic drugs, which had a therapeutic effect on tumors. Results The particle size of iRGD-ICG-10-HCPT-PFP-NPs was 298.4 ± 10.42 nm. In vitro, iRGD-ICG-10-HCPT-PFP-NPs bound more to SK-Hep1 cells than ICG-10-HCPT-PFP-NPs. iRGD-ICG-10-HCPT-PFP-NPs could achieve PA/ultrasound imaging. The percentage of antiproliferative and apoptotic cells in the iRGD-ICG-10-HCPT-PFP-NPs+LIFU group was significantly higher. In vivo, iRGD-ICG-10-HCPT-PFP-NPs can target tumor sites and achieve PA/ultrasound imaging. The tumor volume in the iRGD-ICG-10-HCPT-PFP-NPs+LIFU group was significantly smaller, and the antiproliferative and proapoptotic effects were higher. Conclusion We successfully prepared a novel molecular probe that has good targeting, can perform ultrasound/PA dual-modality imaging, and can penetrate deep into tumors to achieve better therapeutic tumor effects, providing a new idea and method for theranostics of HCC.
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Affiliation(s)
- Huipu Li
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Shasha Shi
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Meng Wu
- Department of Ultrasound, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, People's Republic of China
| | - Wei Shen
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Jianli Ren
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Zhechuan Mei
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Haitao Ran
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Zhigang Wang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Yi Tian
- Department of Plastic Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Jian Gao
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Hongyun Zhao
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China.,Chongqing Key Laboratory of Ultrasound Molecular Imaging, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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7
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Yan Y, Yang C, Dai G, Zhang Y, Tu G, Li Y, Yang L, Shu J. Folic Acid-Conjugated CuFeSe 2 Nanoparticles for Targeted T2-Weighted Magnetic Resonance Imaging and Computed Tomography of Tumors In Vivo. Int J Nanomedicine 2021; 16:6429-6440. [PMID: 34556988 PMCID: PMC8455293 DOI: 10.2147/ijn.s320277] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/07/2021] [Indexed: 01/11/2023] Open
Abstract
Background Development of new long-circulating contrast agents for computed tomography (CT) and magnetic resonance imaging (MRI) of different biological systems still remains a great challenge. Here, we report the synthesis of folic acid (FA)-targeted CuFeSe2 nano-contrast agent for CT and MRI imaging in vitro and in vivo. Methods and Results In our study, CuFeSe2 was fabricated through a facile and green aqueous reaction and then further aminated through silanization. The amine-functionalized CuFeSe2-NH2 nanoparticles enable the covalent conjugation of folate-conjugated polyethylene glycol (FA-PEG-COOH) as a targeting ligand onto their surface, which could improve the dispersion and endue the targetability of nanoparticles, respectively. The formed multifunctional CuFeSe2-PEG-FA nanoparticles were characterized via different techniques, which exhibited outstanding dispersion, good biocompatibility and excellent FA-targeted capability. Meanwhile, the nanoparticles were quite safe in the given concentration range as confirmed by in vitro and in vivo toxicity assay. Importantly, CuFeSe2-PEG-FA nanoparticles were successfully applied in CT/MRI dual-modality imaging in vitro and in vivo, which showed a better imaging performance and targeted capability. Conclusion Therefore, the constructed CuFeSe2-PEG-FA nanoparticles have a great potential as an efficient contrast agent for dual-modality imaging of different biological systems.
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Affiliation(s)
- Yulan Yan
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, and Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, People's Republic of China
| | - Chunmei Yang
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, and Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, People's Republic of China
| | - Guidong Dai
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, and Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, People's Republic of China
| | - Yu Zhang
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, and Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, People's Republic of China
| | - Guojian Tu
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, and Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, People's Republic of China
| | - Yuwei Li
- Department of Interventional Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, People's Republic of China
| | - Lu Yang
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, and Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, People's Republic of China
| | - Jian Shu
- Department of Radiology, The Affiliated Hospital of Southwest Medical University, and Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan Province, People's Republic of China
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Wang X, Huang L, Chi Z, Jiang H. Integrated thermoacoustic and ultrasound imaging based on the combination of a hollow concave transducer array and a linear transducer array. Phys Med Biol 2021; 66. [PMID: 34014177 DOI: 10.1088/1361-6560/abfc91] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/28/2021] [Indexed: 11/11/2022]
Abstract
To integrate the high resolution of ultrasound imaging (UI) and the high tissue specificity of thermoacoustic imaging (TAI) and to achieve an easy and precise co-registration of the two different imaging modalities, we present and demonstrate a hybrid thermoacoustic and ultrasound (TA/US) imaging system based on the combination of a novel hollow concave array and a commercial linear array. This TA/US imaging system can provide enhanced imaging of both tissues' mechanical and dielectric properties. We verified the effective imaging performance of the hybrid TA/US system using tissue phantom experiments.In vivoTA/US imaging of the wrist and foot in healthy volunteers was also demonstrated using the hybrid system. This hollow concave array provided enhanced imaging performance for TAI because of its wide angular coverage with an optimal center frequency, showing a large effective imaging field of view (FOV) and improved images with high contrast and superior quality. Compared with stand-alone UI or TAI, the hybrid TA/US imaging presented more complete tissue anatomical structures, like skin, muscles, tendons, blood vessels, and bones for possible human disease diagnosis, although the US image quality using the hybrid system was slightly lower because the distance between the tissue and commercial ultrasound array was not ideal. This study suggests that the hybrid TA/US imaging approach has the potential to become a clinical tool for diagnosis of diseases in the wrist and foot.
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Affiliation(s)
- Xue Wang
- School of Electronic Science and Engineering (National Exemplary School of Microelectronics), University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China.,Center for Information in Medicine, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China
| | - Lin Huang
- School of Electronic Science and Engineering (National Exemplary School of Microelectronics), University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China.,Center for Information in Medicine, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China
| | - Zihui Chi
- School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, People's Republic of China
| | - Huabei Jiang
- Department of Medical Engineering, University of South Florida, Tampa, FL 33620, United States of America
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9
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Abstract
Microwave thermoacoustic tomography (MTT) uses microwave pulse-induced thermoelastic pressure waves to form planar or tomographic images. Since the generation and detection of thermoelastic pressure waves depends on dielectric permittivity, specific heat, thermal expansion, and acoustic properties of tissue, microwave thermoacoustic imaging possesses the characteristic features of a dual-modality imaging system. The unique attributes of the high contrast offered by microwave absorption and the fine spatial resolution furnished by ultrasound are being explored to provide a nonionizing and noninvasive imaging modality for characterization of tissues, especially for early detection of breast cancer. This paper reviews the research being conducted in developing MTT imaging for medical diagnosis. It discusses the science of thermoelastic wave generation and propagation in biological tissues, the design of prototype MTT systems, the reconstruction of tomographic images, and the application and accomplishment of prototype MTT systems in phantom models and experimental subjects.
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Affiliation(s)
- James C Lin
- University of Illinois at Chicago (M/C 154), 851 South Morgan Street, 1020 SEO Chicago, IL 60607-7053, United States of America
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10
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Liu L, Jiang L, Yuan W, Liu Z, Liu D, Wei P, Zhang X, Yi T. Dual-Modality Detection of Early-Stage Drug-Induced Acute Kidney Injury by an Activatable Probe. ACS Sens 2020; 5:2457-2466. [PMID: 32702967 DOI: 10.1021/acssensors.0c00640] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Early detection of drug-induced acute kidney injury (AKI) is crucial for effective treatment and prevention of further injury. It remains challenging, however, because of the lack of activatable indicators with multimodality imaging capability that could increase the accuracy of diagnosis by mutual verification. Herein, we report an activatable probe, FDOCl-22, that enabled dual-modality detection of the early-stage drug-induced AKI. FDOCl-22 was completely soluble in water and highly sensitive to hypochlorous acid (HOCl). Dramatic increases of both near-infrared (NIR) emission and absorption were observed after reaction with HOCl. A correlation between HOCl concentration and drug-induced AKI was established using FDOCl-22 as a tool. As a consequence, the HOCl-activated probe was able to detect the early-stage drug-induced AKI by dual-modality imaging, irrespective of the drug stimulation time or dosage, by combining NIR fluorescence and photoacoustic imaging.
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Affiliation(s)
- Lingyan Liu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Liping Jiang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Wei Yuan
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Zhongkuan Liu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Dongya Liu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Peng Wei
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Xinyu Zhang
- School of Public Health, Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Tao Yi
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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11
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Lo PA, Su SP, Chiang HK. Small-animal 360-deg fluorescence diffuse optical tomography using structural prior information from ultrasound imaging. J Biomed Opt 2020; 25:1-11. [PMID: 32129028 PMCID: PMC7052526 DOI: 10.1117/1.jbo.25.3.036001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
We demonstrate dual modality of free-space fluorescence diffuse optical tomography (FDOT) and handheld ultrasound (US) imaging to reveal both functional and structural information in small animals. FDOT is a noninvasive method for examining the fluorophore inside an object from the light distribution of the surface. In FDOT, a 660-nm continuous wave diode laser was used as an excitation source and an electron-multiplying charge-coupled device (EMCCD) was used for fluorescence data acquisition. Both the laser and EMCCD were mounted on a 360-deg rotation gantry for the transmission optical data collection. The structural information is obtained from a 6- to 17-MHz handheld US linear transducer by single-side access and conducts in the reconstruction as soft priors. The rotation ranges from 0 deg to 360 deg; different rotation degrees, object positions, and parameters were determined for comparison. Both phantom and tissue phantom results demonstrate that fluorophore distribution can be recovered accurately and quantitatively using this imaging system. Finally, an animal study confirms that the system can extract a dual-modality image, validating its feasibility for further in vivo experiments. In all experiments, the error and standard deviation decrease as the rotation degree is increased and the error was reduced to 10% when the rotation degree was increased over 135 deg.
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Affiliation(s)
- Pei-An Lo
- National Yang-Ming University, Institute of Biomedical Engineering, Taipei, Taiwan
| | - Shih-Po Su
- National Yang-Ming University, Institute of Biomedical Engineering, Taipei, Taiwan
| | - Huihua Kenny Chiang
- National Yang-Ming University, Institute of Biomedical Engineering, Taipei, Taiwan
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12
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Li S, Gou T, Wang Q, Chen M, Chen Z, Xu M, Wang Y, Han D, Cao R, Liu J, Liang P, Dai Z, Cao F. Ultrasound/Optical Dual-Modality Imaging for Evaluation of Vulnerable Atherosclerotic Plaques with Osteopontin Targeted Nanoparticles. Macromol Biosci 2019; 20:e1900279. [PMID: 31885210 DOI: 10.1002/mabi.201900279] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/26/2019] [Indexed: 11/10/2022]
Abstract
Because of the high mortality of coronary atherosclerotic heart diseases, it is necessary to develop novel early detection methods for vulnerable atherosclerotic plaques. Phenotype transformation of vascular smooth muscle cells (VSMCs) plays a vital role in progressed atherosclerotic plaques. Osteopontin (OPN) is one of the biomarkers for phenotypic conversion of VSMCs. Significant higher OPN expression is found in foam cells along with the aggravating capacity of macrophage recruitment due to its arginine-glycine-aspartate sequence and interaction with CD44. Herein, a dual-modality imaging probe, OPN targeted nanoparticles (Cy5.5-anti-OPN-PEG-PLA-PFOB, denoted as COP-NPs), is constructed to identify the molecular characteristics of high-risk atherosclerosis by ultrasound and optical imaging. Characterization, biocompatibility, good binding sensibility, and specificity are evaluated in vitro. For in vivo study, apolipoprotein E deficien (ApoE-/- ) mice fed with high fat diet for 20-24 weeks are used as atherosclerotic model. Ultrasound and optical imaging reveal that the nanoparticles are accumulated in the vulnerable atherosclerotic plaques. OPN targeted nanoparticles are demonstrated to be a good contrast agent in molecular imaging of synthetic VSMCs and foam cells, which can be a promising tool to identify the vulnerable atherosclerotic plaques.
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Affiliation(s)
- Sulei Li
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Tiantian Gou
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Qi Wang
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Min Chen
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Ze Chen
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Mengqi Xu
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yabin Wang
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Dong Han
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Ruihua Cao
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Junsong Liu
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Ping Liang
- Department of Interventional Ultrasound, First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Zhifei Dai
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China
| | - Feng Cao
- Medical School of Chinese PLA and National Clinical Research Center of Geriatric Disease, Second Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
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13
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Liang G, Ren S, Zhao S, Dong F. A Lagrange-Newton Method for EIT/UT Dual-Modality Image Reconstruction. Sensors (Basel) 2019; 19:E1966. [PMID: 31035459 DOI: 10.3390/s19091966] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 04/23/2019] [Accepted: 04/23/2019] [Indexed: 11/25/2022]
Abstract
An image reconstruction method is proposed based on Lagrange-Newton method for electrical impedance tomography (EIT) and ultrasound tomography (UT) dual-modality imaging. Since the change in conductivity distribution is usually accompanied with the change in acoustic impedance distribution, the reconstruction targets of EIT and UT are unified to the conductivity difference using the same mesh model. Some background medium distribution information obtained from ultrasound transmission and reflection measurements can be used to construct a hard constraint about the conductivity difference distribution. Then, the EIT/UT dual-modality inverse problem is constructed by an equality constraint equation, and the Lagrange multiplier method combining Newton-Raphson iteration is used to solve the EIT/UT dual-modality inverse problem. The numerical and experimental results show that the proposed dual-modality image reconstruction method has a better performance than the single-modality EIT method and is more robust to the measurement noise.
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14
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Lin Q, Deng D, Song X, Dai B, Yang X, Luo Q, Zhang Z. Self-Assembled "Off/On" Nanopomegranate for In Vivo Photoacoustic and Fluorescence Imaging: Strategic Arrangement of Kupffer Cells in Mouse Hepatic Lobules. ACS Nano 2019; 13:1526-1537. [PMID: 30716272 DOI: 10.1021/acsnano.8b07283] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Kupffer cells (KCs), potent scavenger cells located in hepatic sinusoids, constantly phagocytize and degrade foreign materials to maintain metabolism and clearance. Understanding the strategic KC arrangement which links to their spatial location and function in hepatic lobules, the basic functional unit in the liver, is highly valuable for characterizing liver function. However, selectively labeling KCs and characterizing their function in vivo remains challenging. Herein, a fast self-assembled pomegranate structure-like nanoparticle with "nanopomegranate seeds" of dye aggregates has been developed, which has dual-modality "off/on" capability. This nanopomegranate shows good photostability, a high extinction coefficient, a high KC labeling efficiency (98.8%), and better visualization of KC morphology than commercial FluoSpheres. In vivo photoacoustic (PA) and fluorescence imaging consistently visualize that KCs are strategically distributed along the central vein (CV)-portal triad (PT) axis in each liver lobule: more and larger KCs exist in areas closer to the PTs. The high-resolution PA quantitative data further revealed that the density of KCs was linearly dependent on the r n/ rmax ratio (their relative location along the CV-PT axis) ( R2 = 0.7513), and the KC density at the outermost layer is almost 246-fold that at the innermost layer (each layer is 8 μm). Notably, the phagocytic ability of KCs located in layers with r n/ rmax ratios of 0.167-0.3 varies in a zigzag pattern, as evidenced by their different PA intensities. Additionally, the fluorescence imaging quantitation suggests similar fluorescence activation of nanopomegranate in KCs. Nanopomegranates combined with dual-modality imaging reveal the strategic arrangement of KCs in vivo, greatly extending our understanding of liver physiology.
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Affiliation(s)
- Qiaoya Lin
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
- MoE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences , Huazhong University of Science and Technology , Wuhan , Hubei , 430074 , China
| | - Deqiang Deng
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
- MoE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences , Huazhong University of Science and Technology , Wuhan , Hubei , 430074 , China
| | - Xianlin Song
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
- MoE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences , Huazhong University of Science and Technology , Wuhan , Hubei , 430074 , China
| | - Bolei Dai
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
- MoE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences , Huazhong University of Science and Technology , Wuhan , Hubei , 430074 , China
| | - Xiaoquan Yang
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
- MoE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences , Huazhong University of Science and Technology , Wuhan , Hubei , 430074 , China
| | - Qingming Luo
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
- MoE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences , Huazhong University of Science and Technology , Wuhan , Hubei , 430074 , China
| | - Zhihong Zhang
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics , Huazhong University of Science and Technology , Wuhan , Hubei 430074 , China
- MoE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences , Huazhong University of Science and Technology , Wuhan , Hubei , 430074 , China
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15
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Abstract
Positron emission tomography (PET) provides quantitative information in vivo with ultra-high sensitivity but is limited by its relatively low spatial resolution. Therefore, PET has been combined with other imaging modalities, and commercial systems such as PET/computed tomography (CT) and PET/magnetic resonance (MR) have become available. Inspired by the emerging field of nanomedicine, many PET-based multimodality nanoparticle imaging agents have been developed in recent years. This Minireview highlights recent progress in the design of PET-based multimodality imaging nanoprobes with an aim to overview the major advances and key challenges in this field and substantially improve our knowledge of this fertile research area.
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Affiliation(s)
- Dalong Ni
- Departments of Radiology and Medical Physics, University of Wisconsin
– Madison, Madison, Wisconsin 53705, United States
| | - Emily B. Ehlerding
- Departments of Radiology and Medical Physics, University of Wisconsin
– Madison, Madison, Wisconsin 53705, United States
| | - Weibo Cai
- Departments of Radiology and Medical Physics, University of Wisconsin
– Madison, Madison, Wisconsin 53705, United States
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16
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Shen X, Li T, Chen Z, Xie X, Zhang H, Feng Y, Li S, Qin X, Yang H, Wu C, Zheng C, Zhu J, You F, Liu Y. NIR-Light-Triggered Anticancer Strategy for Dual-Modality Imaging-Guided Combination Therapy via a Bioinspired Hybrid PLGA Nanoplatform. Mol Pharm 2019; 16:1367-1384. [PMID: 30776896 DOI: 10.1021/acs.molpharmaceut.8b01321] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A promising approach toward cancer therapy is expected to integrate imaging and therapeutic agents into a versatile nanocarrier for achieving improved antitumor efficacy and reducing the side effects of conventional chemotherapy. Herein, we designed a poly(d,l-lactic- co-glycolic acid) (PLGA)-based theranostic nanoplatform using the double emulsion solvent evaporation method (W/O/W), which is associated with bovine serum albumin (BSA) modifications, to codeliver indocyanine green (ICG), a widely used near-infrared (NIR) dye, and doxorubicin (Dox), a chemotherapeutic drug, for dual-modality imaging-guided chemo-photothermal combination cancer therapy. The resultant ICG/Dox co-loaded hybrid PLGA nanoparticles (denoted as IDPNs) had a diameter of around 200 nm and exhibited excellent monodispersity, fluorescence/size stability, and biocompatibility. It was confirmed that IDPNs displayed a photothermal effect and that the heat induced faster release of Dox, which led to enhanced drug accumulation in cells and was followed by their efficient escape from the lysosomes into the cytoplasm and drug diffusion into the nucleus, resulting in a chemo-photothermal combinatorial therapeutic effect in vitro. Moreover, the IDPNs exhibited a high ability to accumulate in tumor tissue, owing to the enhanced permeability and retention (EPR) effect, and could realize real-time fluorescence/photoacoustic imaging of solid tumors with a high spatial resolution. In addition, the exposure of tumor regions to NIR irradiation could enhance the tumor penetration ability of IDPNs, almost eradicating subcutaneous tumors. In addition, the inhibition rate of IDPNs used in combination with laser irradiation against EMT-6 tumors in tumor-bearing nude mice (chemo-photothermal therapy) was approximately 95.6%, which was much higher than that for chemo- or photothermal treatment alone. Our study validated the fact that the use of well-defined IDPNs with NIR laser treatment could be a promising strategy for the early diagnosis and passive tumor-targeted chemo-photothermal therapy for cancer.
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Affiliation(s)
- Xue Shen
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Tingting Li
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Zhongyuan Chen
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Xiaoxue Xie
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Hanxi Zhang
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Yi Feng
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Shun Li
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China.,Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Xiang Qin
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China.,Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Hong Yang
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China.,Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Chunhui Wu
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China.,Center for Information in Biology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China
| | - Chuan Zheng
- Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P. R. China
| | - Jie Zhu
- Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P. R. China
| | - Fengming You
- Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P. R. China
| | - Yiyao Liu
- School of Life Science and Technology , University of Electronic Science and Technology of China , Chengdu 610054 , Sichuan , P. R. China.,Hospital of Chengdu University of Traditional Chinese Medicine , No. 39 Shi-er-qiao Road , Chengdu 610072 , Sichuan , P. R. China
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17
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Chen Y, Liu W, Shang Y, Cao P, Cui J, Li Z, Yin X, Li Y. Folic acid-nanoscale gadolinium-porphyrin metal-organic frameworks: fluorescence and magnetic resonance dual-modality imaging and photodynamic therapy in hepatocellular carcinoma. Int J Nanomedicine 2018; 14:57-74. [PMID: 30587985 PMCID: PMC6304077 DOI: 10.2147/ijn.s177880] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is the most common primary liver cancer and severely threatens human health. Since the prognosis of advanced HCC remains poor, there is an urgent need to develop new therapeutic approaches. Porphyrin metal-organic frameworks are a class of porous organic-inorganic hybrid functional materials with good biocompatibility. Methods Gadolinium-porphyrin metal-organic frameworks were used as a skeleton for folic acid (FA) conjugation to synthesize a novel type of nanoparticle, denoted as folic acid-nanoscale gadolinium-porphyrin metal-organic frameworks (FA-NPMOFs). The FA-NPMOFs were characterized using transmission electron microscopy, Fourier transform infrared spectroscopy and thermogravimetric-differential thermal analysis. The biotoxicity and imaging capability of the FA-NPMOFs were determined using HepG2 cells and embryonic and larval zebrafish. The delivery and photodynamic therapeutic effect of FA-NPMOFs were explored in transgenic zebrafish with doxycycline-induced HCC. Results FA-NPMOFs were spherical in structure with good dispersion and water solubility. They showed low biotoxicity, emitted bright red fluorescence, and exhibited an excellent magnetic resonance imaging capability, both in vitro and in vivo. Meanwhile, the FA-NPMOFs exhibited a strong affinity for folate receptor (FR)-expressing cells and were delivered to the tumor site in a targeted manner. Moreover, HCC tumor cells were eliminated following laser irradiation. Conclusion FA-NPMOFs can be used for dual-modality imaging and photodynamic therapy in HCC and show promise for use as a carrier in new therapies for HCC and other FR-positive tumors.
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Affiliation(s)
- Yang Chen
- Nankai University School of Medicine, Tianjin, China, .,Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Medical International Collaborative Innovation Center, Nankai University, Tianjin, China,
| | - Wei Liu
- State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, China.,School of Science, Tianjin University, Tianjin, China
| | - Yue Shang
- Nankai University School of Medicine, Tianjin, China, .,Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Medical International Collaborative Innovation Center, Nankai University, Tianjin, China,
| | - Peipei Cao
- Nankai University School of Medicine, Tianjin, China, .,Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Medical International Collaborative Innovation Center, Nankai University, Tianjin, China,
| | - Jianlin Cui
- Nankai University School of Medicine, Tianjin, China, .,Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Medical International Collaborative Innovation Center, Nankai University, Tianjin, China,
| | - Zongjin Li
- Nankai University School of Medicine, Tianjin, China,
| | - Xuebo Yin
- State Key Laboratory of Medicinal Chemical Biology and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin, China
| | - Yuhao Li
- Nankai University School of Medicine, Tianjin, China, .,Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Medical International Collaborative Innovation Center, Nankai University, Tianjin, China,
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18
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Tsoukalas C, Psimadas D, Kastis GA, Koutoulidis V, Harris AL, Paravatou-Petsotas M, Karageorgou M, Furenlid LR, Moulopoulos LA, Stamopoulos D, Bouziotis P. A Novel Metal-Based Imaging Probe for Targeted Dual-Modality SPECT/MR Imaging of Angiogenesis. Front Chem 2018; 6:224. [PMID: 29974048 PMCID: PMC6019489 DOI: 10.3389/fchem.2018.00224] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 05/30/2018] [Indexed: 12/19/2022] Open
Abstract
Superparamagnetic iron oxide nanoparticles with well-integrated multimodality imaging properties have generated increasing research interest in the past decade, especially when it comes to the targeted imaging of tumors. Bevacizumab (BCZM) on the other hand is a well-known and widely applied monoclonal antibody recognizing VEGF-A, which is overexpressed in angiogenesis. The aim of this proof-of-concept study was to develop a dual-modality nanoplatform for in vivo targeted single photon computed emission tomography (SPECT) and magnetic resonance imaging (MRI) of tumor vascularization. Iron oxide nanoparticles (IONPs) have been coated with dimercaptosuccinic acid (DMSA), for consequent functionalization with the monoclonal antibody BCZM radiolabeled with 99mTc, via well-developed surface engineering. The IONPs were characterized based on their size distribution, hydrodynamic diameter and magnetic properties. In vitro cytotoxicity studies showed that our nanoconstruct does not cause toxic effects in normal and cancer cells. Fe3O4-DMSA-SMCC-BCZM-99mTc were successfully prepared at high radiochemical purity (>92%) and their stability in human serum and in PBS were demonstrated. In vitro cell binding studies showed the ability of the Fe3O4-DMSA-SMCC-BCZM-99mTc to bind to the VEGF-165 isoform overexpressed on M-165 tumor cells. The ex vivo biodistribution studies in M165 tumor-bearing SCID mice showed high uptake in liver, spleen, kidney and lungs. The Fe3O4-DMSA-SMCC-BCZM-99mTc demonstrated quick tumor accumulation starting at 8.9 ± 1.88%ID/g at 2 h p.i., slightly increasing at 4 h p.i. (16.21 ± 2.56%ID/g) and then decreasing at 24 h p.i. (6.01 ± 1.69%ID/g). The tumor-to-blood ratio reached a maximum at 24 h p.i. (~7), which is also the case for the tumor-to-muscle ratio (~18). Initial pilot imaging studies on an experimental gamma-camera and a clinical MR camera prove our hypothesis and demonstrate the potential of Fe3O4-DMSA-SMCC-BCZM-99mTc for targeted dual-modality imaging. Our findings indicate that Fe3O4-DMSA-SMCC-BCZM-99mTc IONPs could serve as an important diagnostic tool for biomedical imaging as well as a promising candidate for future theranostic applications in cancer.
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Affiliation(s)
- Charalampos Tsoukalas
- Radiochemical Studies Laboratory, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research “Demokritos,”, Athens, Greece
| | - Dimitrios Psimadas
- Radiochemical Studies Laboratory, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research “Demokritos,”, Athens, Greece
| | - George A. Kastis
- Radiochemical Studies Laboratory, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research “Demokritos,”, Athens, Greece
- Research Center of Mathematics, Academy of Athens, Athens, Greece
| | - Vassilis Koutoulidis
- First Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Adrian L. Harris
- Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Maria Paravatou-Petsotas
- Radiochemical Studies Laboratory, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research “Demokritos,”, Athens, Greece
| | - Maria Karageorgou
- Radiochemical Studies Laboratory, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research “Demokritos,”, Athens, Greece
- Department of Solid State Physics, National and Kapodistrian University of Athens, Athens, Greece
| | - Lars R. Furenlid
- Department of Medical Imaging, Center for Gamma-Ray Imaging, University of Arizona, Tucson, AZ, United States
- College of Optical Sciences, University of Arizona, Tucson, AZ, United States
| | - Lia A. Moulopoulos
- First Department of Radiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Dimosthenis Stamopoulos
- Department of Solid State Physics, National and Kapodistrian University of Athens, Athens, Greece
- Institute of Nanoscience and Nanotechnology, National Center for Scientific Research “Demokritos,”Athens, Greece
| | - Penelope Bouziotis
- Radiochemical Studies Laboratory, Institute of Nuclear & Radiological Sciences & Technology, Energy & Safety, National Center for Scientific Research “Demokritos,”, Athens, Greece
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19
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Li D, Zhang J, Chi C, Xiao X, Wang J, Lang L, Ali I, Niu G, Zhang L, Tian J, Ji N, Zhu Z, Chen X. First-in-human study of PET and optical dual-modality image-guided surgery in glioblastoma using 68Ga-IRDye800CW-BBN. Theranostics 2018; 8:2508-2520. [PMID: 29721096 PMCID: PMC5928906 DOI: 10.7150/thno.25599] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 03/25/2018] [Indexed: 12/31/2022] Open
Abstract
Purpose: Despite the use of fluorescence-guided surgery (FGS), maximum safe resection of glioblastoma multiforme (GBM) remains a major challenge. It has restricted surgeons between preoperative diagnosis and intraoperative treatment. Currently, an integrated approach combining preoperative assessment with intraoperative guidance would be a significant step in this direction. Experimental design: We developed a novel 68Ga-IRDye800CW-BBN PET/near-infrared fluorescence (NIRF) dual-modality imaging probe targeting gastrin-releasing peptide receptor (GRPR) in GBM. The preclinical in vivo tumor imaging and FGS were first evaluated using an orthotopic U87MG glioma xenograft model. Subsequently, the first-in-human prospective cohort study (NCT 02910804) of GBM patients were conducted with preoperative PET assessment and intraoperative FGS. Results: The orthotopic tumors in mice could be precisely resected using the near-infrared intraoperative system. Translational cohort research in 14 GBM patients demonstrated an excellent correlation between preoperative positive PET uptake and intraoperative NIRF signal. The tumor fluorescence signals were significantly higher than those from adjacent brain tissue in vivo and ex vivo (p < 0.0001). Compared with pathology, the sensitivity and specificity of fluorescence using 42 loci of fluorescence-guided sampling were 93.9% (95% CI 79.8%-99.3%) and 100% (95% CI 66.4%-100%), respectively. The tracer was safe and the extent of resection was satisfactory without newly developed neurologic deficits. Progression-free survival (PFS) at 6 months was 80% and two newly diagnosed patients achieved long PFS. Conclusions: This initial study has demonstrated that the novel dual-modality imaging technique is feasible for integrated pre- and intraoperative targeted imaging via the same molecular receptor and improved intraoperative GBM visualization and maximum safe resection.
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20
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Zhang N, Wang R, Hao J, Yang Y, Zou H, Wang Z. Mesoporous composite nanoparticles for dual-modality ultrasound/magnetic resonance imaging and synergistic chemo-/thermotherapy against deep tumors. Int J Nanomedicine 2017; 12:7273-7289. [PMID: 29042775 PMCID: PMC5634388 DOI: 10.2147/ijn.s144058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
High-intensity focused ultrasound (HIFU) is a promising and noninvasive treatment for solid tumors, which has been explored for potential clinical applications. However, the clinical applications of HIFU for large and deep tumors such as hepatocellular carcinoma (HCC) are severely limited by unsatisfactory imaging guidance, long therapeutic times, and damage to normal tissue around the tumor due to the high power applied. In this study, we developed doxorubicin/perfluorohexane-encapsulated hollow mesoporous Prussian blue nanoparticles (HMPBs-DOX/PFH) as theranostic agents, which can effectively guide HIFU therapy and enhance its therapeutic effects in combination with chemotherapy, by decreasing the cavitation threshold. We investigated the effects of this agent on ultrasound and magnetic resonance imaging in vitro and in vivo. In addition, we showed a highly efficient HIFU therapeutic effect against HCC tumors, as well as controlled drug release, owing to the phase-transitional performance of the PFH. We therefore conclude that HMPB-DOX/PFH is a safe and efficient nanoplatform, which holds significant promise for cancer theranostics against deep tumors in clinical settings.
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Affiliation(s)
- Nan Zhang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing
| | - Ronghui Wang
- Department of Ultrasound, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai
| | - Junnian Hao
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing
| | - Yang Yang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing
| | - Hongmi Zou
- Department of Ophthalmology, Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Zhigang Wang
- Chongqing Key Laboratory of Ultrasound Molecular Imaging, Second Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing
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21
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Shen X, Li T, Chen Z, Geng Y, Xie X, Li S, Yang H, Wu C, Liu Y. Luminescent/magnetic PLGA-based hybrid nanocomposites: a smart nanocarrier system for targeted codelivery and dual-modality imaging in cancer theranostics. Int J Nanomedicine 2017; 12:4299-4322. [PMID: 28652734 PMCID: PMC5473604 DOI: 10.2147/ijn.s136766] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Cancer diagnosis and treatment represent an urgent medical need given the rising cancer incidence over the past few decades. Cancer theranostics, namely, the combination of diagnostics and therapeutics within a single agent, are being developed using various anticancer drug-, siRNA-, or inorganic materials-loaded nanocarriers. Herein, we demonstrate a strategy of encapsulating quantum dots, superparamagnetic Fe3O4 nanocrystals, and doxorubicin (DOX) into biodegradable poly(d,l-lactic-co-glycolic acid) (PLGA) polymeric nanocomposites using the double emulsion solvent evaporation method, followed by coupling to the amine group of polyethyleneimine premodified with polyethylene glycol-folic acid (PEI-PEG-FA [PPF]) segments and adsorption of vascular endothelial growth factor (VEGF)-targeted small hairpin RNA (shRNA). VEGF is important for tumor growth, progression, and metastasis. These drug-loaded luminescent/magnetic PLGA-based hybrid nanocomposites (LDM-PLGA/PPF/VEGF shRNA) were fabricated for tumor-specific targeting, drug/gene delivery, and cancer imaging. The data showed that LDM-PLGA/PPF/VEGF shRNA nanocomposites can codeliver DOX and VEGF shRNA into tumor cells and effectively suppress VEGF expression, exhibiting remarkable synergistic antitumor effects both in vitro and in vivo. The cell viability waŝ14% when treated with LDM-PLGA/PPF/VEGF shRNA nanocomposites ([DOX] =25 μg/mL), and in vivo tumor growth data showed that the tumor volume decreased by 81% compared with the saline group at 21 days postinjection. Magnetic resonance and fluorescence imaging data revealed that the luminescent/magnetic hybrid nanocomposites may also be used as an efficient nanoprobe for enhanced T2-weighted magnetic resonance and fluorescence imaging in vitro and in vivo. The present work validates the great potential of the developed multifunctional LDM-PLGA/PPF/VEGF shRNA nanocomposites as effective theranostic agents through the codelivery of drugs/genes and dual-modality imaging in cancer treatment.
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Affiliation(s)
- Xue Shen
- Department of Biophysics, School of Life Science and Technology
| | - Tingting Li
- Department of Biophysics, School of Life Science and Technology
| | - Zhongyuan Chen
- Department of Biophysics, School of Life Science and Technology
| | - Yue Geng
- Department of Biophysics, School of Life Science and Technology
| | - Xiaoxue Xie
- Department of Biophysics, School of Life Science and Technology
| | - Shun Li
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
| | - Hong Yang
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
| | - Chunhui Wu
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
| | - Yiyao Liu
- Department of Biophysics, School of Life Science and Technology.,Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu, Sichuan, People's Republic of China
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22
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Padia K, Douglas TS, Cairncross LL, Baasch RV, Vaughan CL. Detecting Breast Cancer with a Dual-Modality Device. Diagnostics (Basel) 2017; 7:E17. [PMID: 28335472 PMCID: PMC5373026 DOI: 10.3390/diagnostics7010017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/09/2017] [Accepted: 03/16/2017] [Indexed: 11/16/2022] Open
Abstract
Although mammography has been the gold standard for the early detection of breast cancer, if a woman has dense breast tissue, a false negative diagnosis may occur. Breast ultrasound, whether hand-held or automated, is a useful adjunct to mammography but adds extra time and cost. The primary aim was to demonstrate that our second-generation Aceso system, which combines full-field digital mammography (FFDM) and automated breast ultrasound (ABUS) in a single platform, is able to produce improved quality images that provide clinically meaningful results. Aceso was first tested using two industry standards: a Contrast Detail Mammography (CDMAM) phantom to assess the FFDM images, and the CIRS 054GS phantom to evaluate the ABUS images. In addition, 25 women participated in a clinical trial: 14 were healthy volunteers, while 11 were patients referred by the breast clinic at Groote Schuur Hospital. The CDMAM phantom results showed the FFDM results were better than the European Reference (EUREF) standard of "acceptable" and were approaching "achievable". The ABUS results showed a lateral and axial spatial resolution of 0.5 mm and an adequate depth penetration of 80 mm. Our second-generation Aceso system, with its improved quality of clinical FFDM and ABUS images, has demonstrated its potential for the early detection of breast cancer in a busy clinic.
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Affiliation(s)
- Kamila Padia
- Department of Radiology, 2 Military Hospital, Hospital Street, Wynberg 7800, South Africa.
| | - Tania S Douglas
- Medical Imaging Research Unit, University of Cape Town, Observatory 7925, South Africa.
- CapeRay Medical (Pty) Ltd, 51 Bell Crescent, Westlake Business Park 7945, South Africa.
| | - Lydia L Cairncross
- Department of Surgery, Groote Schuur Hospital and University of Cape Town, Observatory 7925, South Africa.
| | - Roland V Baasch
- CapeRay Medical (Pty) Ltd, 51 Bell Crescent, Westlake Business Park 7945, South Africa.
| | - Christopher L Vaughan
- Medical Imaging Research Unit, University of Cape Town, Observatory 7925, South Africa.
- CapeRay Medical (Pty) Ltd, 51 Bell Crescent, Westlake Business Park 7945, South Africa.
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23
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Kandukuri J, Yu S, Cheng B, Bandi V, D'Souza F, Nguyen KT, Hong Y, Yuan B. A Dual-Modality System for Both Multi-Color Ultrasound-Switchable Fluorescence and Ultrasound Imaging. Int J Mol Sci 2017; 18:E323. [PMID: 28165390 DOI: 10.3390/ijms18020323] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 12/29/2016] [Accepted: 01/24/2017] [Indexed: 12/21/2022] Open
Abstract
Simultaneous imaging of multiple targets (SIMT) in opaque biological tissues is an important goal for molecular imaging in the future. Multi-color fluorescence imaging in deep tissues is a promising technology to reach this goal. In this work, we developed a dual-modality imaging system by combining our recently developed ultrasound-switchable fluorescence (USF) imaging technology with the conventional ultrasound (US) B-mode imaging. This dual-modality system can simultaneously image tissue acoustic structure information and multi-color fluorophores in centimeter-deep tissue with comparable spatial resolutions. To conduct USF imaging on the same plane (i.e., x-z plane) as US imaging, we adopted two 90°-crossed ultrasound transducers with an overlapped focal region, while the US transducer (the third one) was positioned at the center of these two USF transducers. Thus, the axial resolution of USF is close to the lateral resolution, which allows a point-by-point USF scanning on the same plane as the US imaging. Both multi-color USF and ultrasound imaging of a tissue phantom were demonstrated.
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24
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Hernandez R, Sun H, England CG, Valdovinos HF, Ehlerding EB, Barnhart TE, Yang Y, Cai W. CD146-targeted immunoPET and NIRF Imaging of Hepatocellular Carcinoma with a Dual-Labeled Monoclonal Antibody. Am J Cancer Res 2016; 6:1918-33. [PMID: 27570560 PMCID: PMC4997246 DOI: 10.7150/thno.15568] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/27/2016] [Indexed: 12/16/2022] Open
Abstract
Overexpression of CD146 has been correlated with aggressiveness, recurrence rate, and poor overall survival in hepatocellular carcinoma (HCC) patients. In this study, we set out to develop a CD146-targeting probe for high-contrast noninvasive in vivo positron emission tomography (PET) and near-infrared fluorescence (NIRF) imaging of HCCs. YY146, an anti-CD146 monoclonal antibody, was employed as a targeting molecule to which we conjugated the zwitterionic near-infrared fluorescence (NIRF) dye ZW800-1 and the chelator deferoxamine (Df). This enabled labeling of Df-YY146-ZW800 with (89)Zr and its subsequent detection using PET and NIRF imaging, all without compromising antibody binding properties. Two HCC cell lines expressing high (HepG2) and low (Huh7) levels of CD146 were employed to generate subcutaneous (s.c.) and orthotopic xenografts in athymic nude mice. Sequential PET and NIRF imaging performed after intravenous injection of (89)Zr-Df-YY146-ZW800 into tumor-bearing mice unveiled prominent and persistent uptake of the tracer in HepG2 tumors that peaked at 31.65 ± 7.15 percentage of injected dose per gram (%ID/g; n=4) 72 h post-injection. Owing to such marked accumulation, tumor delineation was successful by both PET and NIRF, which facilitated the fluorescence image-guided resection of orthotopic HepG2 tumors, despite the relatively high liver background. CD146-negative Huh7 and CD146-blocked HepG2 tumors exhibited significantly lower (89)Zr-Df-YY146-ZW800 accretion (6.1 ± 0.5 and 8.1 ± 1.0 %ID/g at 72 h p.i., respectively; n=4), demonstrating the CD146-specificity of the tracer in vivo. Ex vivo biodistribution and immunofluorescent staining corroborated the accuracy of the imaging data and correlated tracer uptake with in situ CD146 expression. Overall, (89)Zr-Df-YY146-ZW800 showed excellent properties as a PET/NIRF imaging agent, including high in vivo affinity and specificity for CD146-expressing HCC. CD146-targeted molecular imaging using dual-labeled YY146 has great potential for early detection, prognostication, and image-guided surgical resection of liver malignancies.
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25
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Chansaenpak K, Wang H, Wang M, Giglio B, Ma X, Yuan H, Hu S, Wu Z, Li Z. Synthesis and Evaluation of [(18) F]-Ammonium BODIPY Dyes as Potential Positron Emission Tomography Agents for Myocardial Perfusion Imaging. Chemistry 2016; 22:12122-9. [PMID: 27405398 DOI: 10.1002/chem.201601972] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/06/2016] [Indexed: 01/06/2023]
Abstract
Recently, we demonstrated the potential of a [(18) F]-trimethylammonium BODIPY dye for cardiac imaging. This is the first example of the use of the [(18) F]-ammonium BODIPY dye for positron emission tomography (PET) myocardial perfusion imaging (MPI). In this report, we extend our study to other ammonium BODIPY dyes with different nitrogen substituents. These novel ammonium BODIPY dyes were successfully prepared and radiolabeled by the SnCl4 -assisted (18) F-(19) F isotopic exchange method. The microPET results and the biodistribution data reveal that nitrogen substituent changes have a significant effect on the in vivo and pharmacological properties of the tracers. Of the novel [(18) F]-ammonium BODIPY dyes prepared in this work, the [(18) F]-dimethylethylammonium BODIPY is superior in terms of myocardium uptake and PET imaging contrast. These results support our hypothesis that the ammonium BODIPY dyes have a great potential for use as PET/optical dual-modality MPI probes.
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Affiliation(s)
- Kantapat Chansaenpak
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA
| | - Hui Wang
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA
| | - Mengzhe Wang
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA
| | - Benjamin Giglio
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA
| | - Xiaofeng Ma
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA
| | - Hong Yuan
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA
| | - Shuo Hu
- PET Center of Xiangya Hospital, Central South University, Changsha, 410008, China.
| | - Zhanhong Wu
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA.
| | - Zibo Li
- Biomedical Research Imaging Center, Department of Radiology, University of North Carolina, Chapel Hill, North Carolina, 27514, USA
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26
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Abstract
While mathematical model observers are intended for efficient assessment of medical imaging systems, their findings should be relevant for human observers as the primary clinical end users. We have investigated whether pursuing equivalence between the model and human-observer tasks can help ensure this goal. A localization ROC (LROC) study tested prostate lesion detection in simulated In-111 SPECT imaging with anthropomorphic phantoms. The test images were 2D slices extracted from reconstructed volumes. The iterative OSEM reconstruction method was used with Gaussian postsmoothing. Variations in the number of iterations and the level of postfiltering defined the test strategies in the study. Human-observer performance was compared with that of a visual-search (VS) observer, a scanning channelized Hotelling observer, and a scanning nonprewhitening (CNPW) observer. These model observers were applied with precise information about the target regions of interest (ROIs). ROI knowledge was a study variable for the human observers. In one study format, the humans read the SPECT image alone. With a dual-modality format, the SPECT image was presented alongside an anatomical image slice extracted from the density map of the phantom. Performance was scored by area under the LROC curve. The human observers performed significantly better with the dual-modality format, and correlation with the model observers was also improved. Given the human-observer data from the SPECT study format, the Pearson correlation coefficients for the model observers were 0.58 (VS), -0.12 (CH), and -0.23 (CNPW). The respective coefficients based on the human-observer data from the dual-modality study were 0.72, 0.27, and -0.11. These results point towards the continued development of the VS observer for enhancing task equivalence in model-observer studies.
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Affiliation(s)
- Anando Sen
- Department of Biomedical Informatics, Columbia University, New York City, NY, USA
| | - Faraz Kalantari
- Department of Radiation Oncology, University of Texas Southwestern, Dallas, TX, USA
| | - Howard C. Gifford
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA
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27
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Jiang D, Sun Y, Li J, Li Q, Lv M, Zhu B, Tian T, Cheng D, Xia J, Zhang L, Wang L, Huang Q, Shi J, Fan C. Multiple-Armed Tetrahedral DNA Nanostructures for Tumor-Targeting, Dual-Modality in Vivo Imaging. ACS Appl Mater Interfaces 2016; 8:4378-84. [PMID: 26878704 DOI: 10.1021/acsami.5b10792] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this work, we have developed multiple-armed DNA tetrahedral nanostructures (TDNs) for dual-modality in vivo imaging using near-infrared (NIR) fluorescence and single-photon emission computed tomography (SPECT). We found that the presence of arm strands in TDNs remarkably enhanced their in vitro stability, allowing them to stay intact for at least 12 h in serum. By using NIR fluorescence imaging, we evaluated in mice the pharmacokinetics of TDNs, which exhibited distinctly different in vivo biodistribution patterns compared with those of double-stranded (ds)DNA. We also noticed that TDNs had twofold longer circulation time in the blood system than that of dsDNA. With the use of multiple-armed TDNs, we could precisely anchor an exact number of functional groups including tumor-targeting folic acid (FA), NIR emitter Dylight 755, and radioactive isotope (99m)Tc on prescribed positions of TDNs, which showed the capability of targeted imaging ability in cancer cells. Furthermore, we realized noninvasive tumor-targeting imaging in tumor-bearing mice by using both NIR and SPECT modalities.
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Affiliation(s)
- Dawei Jiang
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Yanhong Sun
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Jiang Li
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Qian Li
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Min Lv
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Bing Zhu
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Tian Tian
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Dengfeng Cheng
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University , Shanghai 200032, China
| | - Jiaoyun Xia
- School of Chemistry and Biology Engineering, Changsha University of Science and Technology , Changsha 410004, China
| | - Lan Zhang
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Lihua Wang
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Qing Huang
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
| | - Jiye Shi
- UCB Pharma , Slough, SL1 14EN Berkshire, United Kingdom
| | - Chunhai Fan
- Division of Physical Biology & Bioimaging Center, CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences , Shanghai 201800, China
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28
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Guo W, Sun X, Jacobson O, Yan X, Min K, Srivatsan A, Niu G, Kiesewetter DO, Chang J, Chen X. Intrinsically radioactive [64Cu]CuInS/ZnS quantum dots for PET and optical imaging: improved radiochemical stability and controllable Cerenkov luminescence. ACS Nano 2015; 9:488-95. [PMID: 25549258 PMCID: PMC4310640 DOI: 10.1021/nn505660r] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Accepted: 12/30/2014] [Indexed: 05/20/2023]
Abstract
Functionalized quantum dots (QDs) have been widely explored for multimodality bioimaging and proven to be versatile agents. Attaching positron-emitting radioisotopes onto QDs not only endows their positron emission tomography (PET) functionality, but also results in self-illuminating QDs, with no need for an external light source, by Cerenkov resonance energy transfer (CRET). Traditional chelation methods have been used to incorporate the radionuclide, but these methods are compromised by the potential for loss of radionuclide due to cleavage of the linker between particle and chelator, decomplexation of the metal, and possible altered pharmacokinetics of nanomaterials. Herein, we described a straightforward synthesis of intrinsically radioactive [(64)Cu]CuInS/ZnS QDs by directly incorporating (64)Cu into CuInS/ZnS nanostructure with (64)CuCl2 as synthesis precursor. The [(64)Cu]CuInS/ZnS QDs demonstrated excellent radiochemical stability with less than 3% free (64)Cu detected even after exposure to serum containing EDTA (5 mM) for 24 h. PEGylation can be achieved in situ during synthesis, and the PEGylated radioactive QDs showed high tumor uptake (10.8% ID/g) in a U87MG mouse xenograft model. CRET efficiency was studied as a function of concentration and (64)Cu radioactivity concentration. These [(64)Cu]CuInS/ZnS QDs were successfully applied as an efficient PET/self-illuminating luminescence in vivo imaging agents.
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Affiliation(s)
- Weisheng Guo
- School of Materials Science and Engineering, School of Life Sciences, Tianjin University, Tianjin 300072, China
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Xiaolian Sun
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
- Address correspondence to , ,
| | - Orit Jacobson
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Xuefeng Yan
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Kyunghyun Min
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Avinash Srivatsan
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Gang Niu
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Dale O. Kiesewetter
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
| | - Jin Chang
- School of Materials Science and Engineering, School of Life Sciences, Tianjin University, Tianjin 300072, China
- Address correspondence to , ,
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine (LOMIN), National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States
- Address correspondence to , ,
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29
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Abstract
We reported the development of multifunctional liposomes as a dual-modality probe to facilitate targeted magnetic resonance and fluorescent imaging of bone metastasis from advanced cancer. Multifunctional liposomes consisted of liposomes as a carrier, hydrophobic CdSe QDs in phospholipid bilayer, hydrophilic iron oxide nanoparticles in interior vesicle, lipid-PEG derivative on the surface and cRGDyk peptide conjugated to distal ends of lipid-PEG derivative. Excellent stability, effective detection signal, low toxicity, high resistance to phagocytosis by macrophages and good specificity to tumor of multifunctional liposomes were confirmed by in vitro characterization. The in vivo results demonstrated that multifunctional liposomes accumulated mainly in tumor and liver, indicating that targeted dual-modality imaging was achieved, and the results from two kinds of modalities were consistent and complementary. These findings provide a helpful strategy for detection of bone metastases in a more effective manner for initiation of appropriate therapy.
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Affiliation(s)
- Fangfang Wang
- Institute for Nautical Medicine, Nantong University , Nantong , People's Republic of China
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30
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Lütje S, Rijpkema M, Franssen GM, Fracasso G, Helfrich W, Eek A, Oyen WJ, Colombatti M, Boerman OC. Dual-Modality Image-Guided Surgery of Prostate Cancer with a Radiolabeled Fluorescent Anti-PSMA Monoclonal Antibody. J Nucl Med 2014; 55:995-1001. [PMID: 24700882 DOI: 10.2967/jnumed.114.138180] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 02/19/2014] [Indexed: 02/04/2023] Open
Abstract
UNLABELLED Both radionuclide imaging and near-infrared fluorescent (NIRF) imaging have a high sensitivity to detect tumors in vivo. The combination of these modalities using dual-labeled antibodies may allow both preoperative and intraoperative tumor localization and may be used in image-guided surgery to ensure complete resection of tumor tissue. Here, we evaluated the potential of dual-modality imaging of prostate cancer with the monoclonal antibody D2B, directed against an extracellular domain of prostate-specific membrane antigen (PSMA). For these studies, D2B was labeled both with (111)In and with the NIRF dye IRDye800CW. METHODS D2B was conjugated with N-hydroxysuccinimide-IRDye800CW and p-isothiocyanatobenzyl-diethylenetriaminepentaacetic acid (ITC-DTPA) and subsequently radiolabeled with (111)In. For biodistribution and NIRF imaging, (111)In-DTPA-D2B-IRDye800CW (2 μg, 0.55 MBq/mouse) was injected intravenously into BALB/c nude mice with subcutaneous PSMA-expressing LNCaP tumors (right flank) and PSMA-negative PC3 tumors (left flank). The biodistribution was determined at 1, 2, 3, and 7 d after injection. In addition, micro-SPECT/CT and NIRF imaging with (111)In-DTPA-D2B-IRDye800CW (3 μg, 8.5 MBq/mouse) was performed on mice with intraperitoneally growing LS174T-PSMA tumors. RESULTS (111)In-DTPA-D2B-IRDye800CW specifically accumulated in subcutaneous PSMA-positive LNCaP tumors (45.8 ± 8.0 percentage injected dose per gram at 168 h after injection), whereas uptake in subcutaneous PSMA-negative PC3 tumors was significantly lower (6.6 ± 1.3 percentage injected dose per gram at 168 h after injection). Intraperitoneal LS174T-PSMA tumors could be visualized specifically with both micro-SPECT/CT and NIRF imaging at 2 d after injection, and the feasibility of image-guided resection of intraperitoneal tumors was demonstrated in this model. CONCLUSION Dual-labeled (111)In-DTPA-D2B-IRDye800CW enables specific and sensitive detection of prostate cancer lesions in vivo with micro-SPECT/CT and NIRF imaging. In addition to preoperative micro-SPECT/CT imaging to detect tumors, NIRF imaging enables image-guided surgical resection. These preclinical findings warrant clinical studies with (111)In-DTPA-D2B-IRDye800CW to improve tumor detection and resection in prostate cancer patients.
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Affiliation(s)
- Susanne Lütje
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Mark Rijpkema
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Gerben M Franssen
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Giulio Fracasso
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy; and
| | - Wijnand Helfrich
- Department of Surgery, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
| | - Annemarie Eek
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wim J Oyen
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marco Colombatti
- Department of Pathology and Diagnostics, University of Verona, Verona, Italy; and
| | - Otto C Boerman
- Department of Radiology and Nuclear Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
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Yuan J, Xu G, Yu Y, Zhou Y, Carson PL, Wang X, Liu X. Real-time photoacoustic and ultrasound dual-modality imaging system facilitated with graphics processing unit and code parallel optimization. J Biomed Opt 2013; 18:86001. [PMID: 23907277 PMCID: PMC3733419 DOI: 10.1117/1.jbo.18.8.086001] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/31/2013] [Accepted: 06/21/2013] [Indexed: 05/18/2023]
Abstract
Photoacoustic tomography (PAT) offers structural and functional imaging of living biological tissue with highly sensitive optical absorption contrast and excellent spatial resolution comparable to medical ultrasound (US) imaging. We report the development of a fully integrated PAT and US dual-modality imaging system, which performs signal scanning, image reconstruction, and display for both photoacoustic (PA) and US imaging all in a truly real-time manner. The back-projection (BP) algorithm for PA image reconstruction is optimized to reduce the computational cost and facilitate parallel computation on a state of the art graphics processing unit (GPU) card. For the first time, PAT and US imaging of the same object can be conducted simultaneously and continuously, at a real-time frame rate, presently limited by the laser repetition rate of 10 Hz. Noninvasive PAT and US imaging of human peripheral joints in vivo were achieved, demonstrating the satisfactory image quality realized with this system. Another experiment, simultaneous PAT and US imaging of contrast agent flowing through an artificial vessel, was conducted to verify the performance of this system for imaging fast biological events. The GPU-based image reconstruction software code for this dual-modality system is open source and available for download from http://sourceforge.net/projects/patrealtime.
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Affiliation(s)
- Jie Yuan
- Nanjing University, School of Electronic Science and Engineering, Nanjing 210093, China
| | - Guan Xu
- University of Michigan, Department of Radiology, Ann Arbor, Michigan 48109
| | - Yao Yu
- Nanjing University, School of Electronic Science and Engineering, Nanjing 210093, China
| | - Yu Zhou
- Nanjing University, School of Electronic Science and Engineering, Nanjing 210093, China
| | - Paul L. Carson
- University of Michigan, Department of Radiology, Ann Arbor, Michigan 48109
| | - Xueding Wang
- University of Michigan, Department of Radiology, Ann Arbor, Michigan 48109
- Address all correspondence to: Xueding Wang, University of Michigan, Department of Radiology, Ann Arbor, Michigan 48109. Tel: +1-734-647-2728; Fax: +1-734-764-8541; E-mail:
| | - Xiaojun Liu
- Nanjing University, School of Physics, Nanjing 210093, China
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Dai C, Liu X, Jiao S. Simultaneous optical coherence tomography and autofluorescence microscopy with a single light source. J Biomed Opt 2012; 17:080502-1. [PMID: 23224153 PMCID: PMC3442158 DOI: 10.1117/1.jbo.17.8.080502] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 06/27/2012] [Accepted: 06/28/2012] [Indexed: 05/20/2023]
Abstract
We have accomplished simultaneous spectral domain optical coherence tomography (SD-OCT) and autofluorescence (AF) microscopy with a broadband light source centered at 415 nm. The light source was provided by frequency-doubling of an ultra-fast broadband Ti:Sapphire laser. With a bandwidth of 8 nm, the visible SD-OCT achieved a depth resolution of ~12 μm. Since the two imaging modalities are provided by the same group of photons, their images are intrinsically registered. The dual-modal system is capable of providing OCT imaging and molecular contrasts simultaneously. The imaging system was tested on imaging biological samples ex vivo and in vivo.
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Affiliation(s)
- Cuixia Dai
- Shanghai Institute of Technology, College of Science, 100 Haiquan Road, Shanghai 201418, China
| | - Xiaojing Liu
- University of Southern California, Department of Ophthalmology Keck School of Medicine, Los Angeles, California 90033
| | - Shuliang Jiao
- University of Southern California, Department of Ophthalmology Keck School of Medicine, Los Angeles, California 90033
- Address all correspondence to: Shuliang Jiao, University of Southern California, Department of Ophthalmology, Keck School of Medicine, 1450 San Pablo St., Room DVRC 307E Los Angeles, California 90033; E-mail: .
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