1
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Liu R, Xu Y, Zhang N, Qu S, Zeng W, Li R, Dai Z. Nanotechnology for Enhancing Medical Imaging. Nanomedicine (Lond) 2023. [DOI: 10.1007/978-981-16-8984-0_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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2
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Margalik DA, Chen J, Ho T, Ding L, Dhaliwal A, Doria AS, Zheng G. Prolonged Circulating Lipid Nanoparticles Enabled by High-Density Gd-DTPA-Bis(stearylamide) for Long-Lasting Enhanced Tumor Magnetic Resonance Imaging. Bioconjug Chem 2022; 33:2213-2222. [DOI: 10.1021/acs.bioconjchem.2c00445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Denis A. Margalik
- Princess Margaret Cancer Centre, University Health Network 101 College St., PMCRT 5-354, Toronto, ON M5G 1L7, Canada
- Institute of Biomedical Engineering, University of Toronto 64 College St., Toronto, ON M5S 3G9, Canada
| | - Juan Chen
- Princess Margaret Cancer Centre, University Health Network 101 College St., PMCRT 5-354, Toronto, ON M5G 1L7, Canada
| | - Tiffany Ho
- Princess Margaret Cancer Centre, University Health Network 101 College St., PMCRT 5-354, Toronto, ON M5G 1L7, Canada
- Department of Pharmaceutical Sciences, University of Toronto 144 College St., Toronto, ON M5S 3M2, Canada
| | - Lili Ding
- Princess Margaret Cancer Centre, University Health Network 101 College St., PMCRT 5-354, Toronto, ON M5G 1L7, Canada
| | - Alexander Dhaliwal
- Princess Margaret Cancer Centre, University Health Network 101 College St., PMCRT 5-354, Toronto, ON M5G 1L7, Canada
- Department of Medical Biophysics, University of Toronto 101 College St., Toronto, ON M5G 1L7, Canada
| | - Andrea S. Doria
- Department of Diagnostic Imaging, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 1X8, Canada
| | - Gang Zheng
- Princess Margaret Cancer Centre, University Health Network 101 College St., PMCRT 5-354, Toronto, ON M5G 1L7, Canada
- Institute of Biomedical Engineering, University of Toronto 64 College St., Toronto, ON M5S 3G9, Canada
- Department of Pharmaceutical Sciences, University of Toronto 144 College St., Toronto, ON M5S 3M2, Canada
- Department of Medical Biophysics, University of Toronto 101 College St., Toronto, ON M5G 1L7, Canada
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3
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Zeng W, Wu L, Ishigaki Y, Harimoto T, Hu Y, Sun Y, Wang Y, Suzuki T, Chen H, Ye D. An Activatable Afterglow/MRI Bimodal Nanoprobe with Fast Response to H
2
S for In Vivo Imaging of Acute Hepatitis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenhui Zeng
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Luyan Wu
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Yusuke Ishigaki
- Department of Chemistry Faculty of Science Hokkaido University N10 W8, North-ward Sapporo 060–0810 Japan
| | - Takashi Harimoto
- Department of Chemistry Faculty of Science Hokkaido University N10 W8, North-ward Sapporo 060–0810 Japan
| | - Yuxuan Hu
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Yidan Sun
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Yuqi Wang
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Takanori Suzuki
- Department of Chemistry Faculty of Science Hokkaido University N10 W8, North-ward Sapporo 060–0810 Japan
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Deju Ye
- State Key Laboratory of Analytical Chemistry for Life Science Chemistry and Biomedicine Innovation Center (ChemBIC) School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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4
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Nanotechnology for Enhancing Medical Imaging. Nanomedicine (Lond) 2022. [DOI: 10.1007/978-981-13-9374-7_8-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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5
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Zeng W, Wu L, Ishigaki Y, Harimoto T, Hu Y, Sun Y, Wang Y, Suzuki T, Chen HY, Ye D. An Activatable Afterglow/MRI Bimodal Nanoprobe with Fast Response to H 2 S for In Vivo Imaging of Acute Hepatitis. Angew Chem Int Ed Engl 2021; 61:e202111759. [PMID: 34791772 DOI: 10.1002/anie.202111759] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/20/2021] [Indexed: 11/12/2022]
Abstract
Accurate detection of hepatic hydrogen sulfide (H2 S) to monitor H2 S-related enzymes' activity is critical for acute hepatitis diagnosis, but remains a challenge due to the dynamic and transient nature of H2 S. Here, we report a H2 S-activatable near-infrared afterglow/MRI bimodal probe F1-GdNP, which shows an "always-on" MRI signal and "off-on" afterglow signal toward H2 S. F1-GdNP shows fast response, high sensitivity and specificity toward H2 S, permitting afterglow imaging of H2 S and evaluation of cystathionine γ-lyase (CSE)'s activity in living mice. We further employ the high spatial-resolution MRI signal of F1-GdNP to track its delivery and accumulation in liver. Importantly, F1-GdNP offers a high signal-to-background ratio (SBR=86.2±12.0) to sensitively report on the increased hepatic H2 S level in the acute hepatitis mice via afterglow imaging, which correlated well with the upregulated CSE activity in the liver, showcasing the good potential of F1-GdNP for monitoring of acute hepatitis process in vivo.
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Affiliation(s)
- Wenhui Zeng
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Luyan Wu
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Takashi Harimoto
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Yuxuan Hu
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yidan Sun
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yuqi Wang
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Deju Ye
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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6
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Li X, Yang HF, Chen Y, Pei LJ, Jiang R. Effect of the icariin on endothelial microparticles, endothelial progenitor cells, platelets, and erectile function in spontaneously hypertensive rats. Andrology 2021; 10:576-584. [PMID: 34779135 DOI: 10.1111/andr.13127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/19/2021] [Accepted: 11/03/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES To investigate the effect of icariin on endothelial microparticles, endothelial progenitor cells, platelets, and erectile function in spontaneously hypertensive rats. MATERIALS AND METHODS Twelve 8-week-old healthy male Wistar-Kyoto rats and 12 spontaneously hypertensive rats were randomly divided into four following groups: Wistar-Kyoto control group (normal saline 1 ml/d given by gavage), Wistar-Kyoto + icariin group (icariin 10 mg/kg × d dissolved in 1 ml normal saline and given by gavage), spontaneously hypertensive rats control group (normal saline 1 ml/d given by gavage), and spontaneously hypertensive rats + icariin group (icariin 10 mg/kg × d dissolved in 1 ml normal saline and given by gavage). Four weeks later, the maximum intracavernous pressure/mean arterial pressure, platelet count, mean platelet volume, platelet distribution width, endothelial microparticles, endothelial progenitor cells, and vitronectin receptor were measured in each group. RESULTS Under 3 or 5 V electrical stimulation, the maximum intracavernous pressure/mean arterial pressure in the spontaneously hypertensive rats + icariin group (0.23 ± 0.03, 0.38 ± 0.02) was significantly higher compared to the spontaneously hypertensive rats control group (0.12 ± 0.02, 0.20 ± 0.02) (p<0.05). Platelet count, mean platelet volume, and platelet distribution width in the spontaneously hypertensive rats + icariin group (1103.67 ± 107.70 × 109 /L, 9.08 ± 0.50 fl, 11.87 ± 0.45%) were significantly lower than those in the spontaneously hypertensive rats control group (1298.00 ± 89.54 × 109 /L, 9.72 ± 0.44 fl, 13.03 ± 0.59%) (all p < 0.05). Endothelial microparticles, endothelial progenitor cells, and vitronectin receptor in the spontaneously hypertensive rats + icariin group (1.01 ± 0.28%, 1.53 ± 0.65%, 2.13 ± 0.53%) were significantly lower than those in the spontaneously hypertensive rats control group (1.58 ± 0.19%, 2.71 ± 0.64%, 3.76 ± 0.52%) (all p < 0.05). Moreover, maximum intracavernous pressure/mean arterial pressure was strongly negatively correlated with platelet distribution width and vitronectin receptor (r > 0.7), and maximum intracavernous pressure/mean arterial pressure was moderately negatively correlated with mean platelet volume, endothelial microparticles, and endothelial progenitor cells (0.5 < r<0.7). CONCLUSION Icariin may improve erectile function in spontaneously hypertensive rats by reducing the content of endothelial microparticles in blood and inhibiting the activation of the platelets. Endothelial microparticles, endothelial progenitor cells, and platelet activation-related (mean platelet volume, platelet distribution width, and vitronectin receptor) can be used as indicators for icariin to improve erectile function in spontaneously hypertensive rats.
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Affiliation(s)
- Xu Li
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hai-Fan Yang
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yong Chen
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Li-Jun Pei
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Rui Jiang
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
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7
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Wahsner J, Gale EM, Rodríguez-Rodríguez A, Caravan P. Chemistry of MRI Contrast Agents: Current Challenges and New Frontiers. Chem Rev 2019; 119:957-1057. [PMID: 30350585 PMCID: PMC6516866 DOI: 10.1021/acs.chemrev.8b00363] [Citation(s) in RCA: 818] [Impact Index Per Article: 163.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Tens of millions of contrast-enhanced magnetic resonance imaging (MRI) exams are performed annually around the world. The contrast agents, which improve diagnostic accuracy, are almost exclusively small, hydrophilic gadolinium(III) based chelates. In recent years concerns have arisen surrounding the long-term safety of these compounds, and this has spurred research into alternatives. There has also been a push to develop new molecularly targeted contrast agents or agents that can sense pathological changes in the local environment. This comprehensive review describes the state of the art of clinically approved contrast agents, their mechanism of action, and factors influencing their safety. From there we describe different mechanisms of generating MR image contrast such as relaxation, chemical exchange saturation transfer, and direct detection and the types of molecules that are effective for these purposes. Next we describe efforts to make safer contrast agents either by increasing relaxivity, increasing resistance to metal ion release, or by moving to gadolinium(III)-free alternatives. Finally we survey approaches to make contrast agents more specific for pathology either by direct biochemical targeting or by the design of responsive or activatable contrast agents.
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Affiliation(s)
- Jessica Wahsner
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Eric M. Gale
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Aurora Rodríguez-Rodríguez
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Peter Caravan
- Athinoula A. Martinos Center for Biomedical Imaging and the Institute for Innovation in Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
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8
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Deng Y, Xu A, Yu Y, Fu C, Liang G. Biomedical Applications of Fluorescent and Magnetic Resonance Imaging Dual‐Modality Probes. Chembiochem 2018; 20:499-510. [DOI: 10.1002/cbic.201800450] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Yun Deng
- Institute for Interdisciplinary & Research Key Laboratory of, Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan University Wuhan 430056 P.R. China
| | - Aifei Xu
- School of Tobacco Science and EngineeringZhengzhou University of Light Industry Zhengzhou 450002 P.R. China
| | - Yanhua Yu
- Institute for Interdisciplinary & Research Key Laboratory of, Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan University Wuhan 430056 P.R. China
| | - Cheng Fu
- Institute for Interdisciplinary & Research Key Laboratory of, Optoelectronic Chemical Materials and Devices of Ministry of EducationJianghan University Wuhan 430056 P.R. China
| | - Gaolin Liang
- CAS Key Laboratory of Soft Matter ChemistryDepartment of ChemistryUniversity of Science and Technology of China Hefei 230026 P.R. China
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9
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Zhao H, Zhou P, Huang K, Deng G, Zhou Z, Wang J, Wang M, Zhang Y, Yang H, Yang S. Amplifying Apoptosis Homing Nanoplatform for Tumor Theranostics. Adv Healthc Mater 2018; 7:e1800296. [PMID: 29745029 DOI: 10.1002/adhm.201800296] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 04/10/2018] [Indexed: 02/05/2023]
Abstract
Nanomedicine has significantly impacted cancer theranostics. However, its efficiency is restricted by the limited enhanced permeability and retention effect of nanomaterials and insufficient density/specificity of receptors of tumor cells. Herein, an apoptosis-homing nanoplatform based on zinc(II) dipicolylamine (ZnDPA) conjugated Fe/Fe3 O4 nanoparticles (MNPs/ZnDPA), which demonstrates amplified magnetic resonance signal and photothermal therapy, is developed. In an apoptotic xenograft model constructed by doxorubicin, due to the high affinity between ZnDPA and the upregulated level of phosphatidylserine on the outer surface of apoptotic cancer cells, the accumulation value of MNPs/ZnDPA is enhanced two-fold and the tumor/muscle ratio of T2 values is decreased to 50% compared to that in the normal xenograft model. In the apoptotic xenograft model, the amplifying photothermal therapy is confirmed by the changes of the relative tumor volume and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end-labeling staining. This nanoplatform provides a promising strategy to improve the targeting efficiency of nanoparticles and the enhancement of tumor-targeting theranostics.
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Affiliation(s)
- Heng Zhao
- The Key Laboratory of Resource Chemistry of Ministry of Education; Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors; Shanghai Normal University; Shanghai 200234 China
| | - Ping Zhou
- The Key Laboratory of Resource Chemistry of Ministry of Education; Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors; Shanghai Normal University; Shanghai 200234 China
| | - Kai Huang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province; Shenzhen University; Shenzhen 518060 China
| | - Guang Deng
- The Key Laboratory of Resource Chemistry of Ministry of Education; Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors; Shanghai Normal University; Shanghai 200234 China
| | - Zhiguo Zhou
- The Key Laboratory of Resource Chemistry of Ministry of Education; Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors; Shanghai Normal University; Shanghai 200234 China
| | - Jing Wang
- The Key Laboratory of Resource Chemistry of Ministry of Education; Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors; Shanghai Normal University; Shanghai 200234 China
| | - Mingwei Wang
- Department of Nuclear Medicine; Fudan University Shanghai Cancer Center; Shanghai 200032 China
- Department of Oncology; Shanghai Medical College; Fudan University; Shanghai 200032 China
- Shanghai Engineering Research; Center for Molecular Imaging Probes; Shanghai 200032 China
| | - Yingjian Zhang
- Department of Nuclear Medicine; Fudan University Shanghai Cancer Center; Shanghai 200032 China
- Department of Oncology; Shanghai Medical College; Fudan University; Shanghai 200032 China
- Shanghai Engineering Research; Center for Molecular Imaging Probes; Shanghai 200032 China
| | - Hong Yang
- The Key Laboratory of Resource Chemistry of Ministry of Education; Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors; Shanghai Normal University; Shanghai 200234 China
| | - Shiping Yang
- The Key Laboratory of Resource Chemistry of Ministry of Education; Shanghai Key Laboratory of Rare Earth Functional Materials, and Shanghai Municipal Education Committee Key Laboratory of Molecular Imaging Probes and Sensors; Shanghai Normal University; Shanghai 200234 China
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Rybczynska AA, Boersma HH, de Jong S, Gietema JA, Noordzij W, Dierckx RAJO, Elsinga PH, van Waarde A. Avenues to molecular imaging of dying cells: Focus on cancer. Med Res Rev 2018. [PMID: 29528513 PMCID: PMC6220832 DOI: 10.1002/med.21495] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Successful treatment of cancer patients requires balancing of the dose, timing, and type of therapeutic regimen. Detection of increased cell death may serve as a predictor of the eventual therapeutic success. Imaging of cell death may thus lead to early identification of treatment responders and nonresponders, and to “patient‐tailored therapy.” Cell death in organs and tissues of the human body can be visualized, using positron emission tomography or single‐photon emission computed tomography, although unsolved problems remain concerning target selection, tracer pharmacokinetics, target‐to‐nontarget ratio, and spatial and temporal resolution of the scans. Phosphatidylserine exposure by dying cells has been the most extensively studied imaging target. However, visualization of this process with radiolabeled Annexin A5 has not become routine in the clinical setting. Classification of death modes is no longer based only on cell morphology but also on biochemistry, and apoptosis is no longer found to be the preponderant mechanism of cell death after antitumor therapy, as was earlier believed. These conceptual changes have affected radiochemical efforts. Novel probes targeting changes in membrane permeability, cytoplasmic pH, mitochondrial membrane potential, or caspase activation have recently been explored. In this review, we discuss molecular changes in tumors which can be targeted to visualize cell death and we propose promising biomarkers for future exploration.
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Affiliation(s)
- Anna A Rybczynska
- Molecular Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,Department of Genetics, University of Groningen, Groningen, the Netherlands
| | - Hendrikus H Boersma
- Molecular Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,Department of Clinical Pharmacy & Pharmacology, University of Groningen, Groningen, the Netherlands
| | - Steven de Jong
- Department of Medical Oncology, University of Groningen, Groningen, the Netherlands
| | - Jourik A Gietema
- Department of Medical Oncology, University of Groningen, Groningen, the Netherlands
| | - Walter Noordzij
- Molecular Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Rudi A J O Dierckx
- Molecular Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.,Department of Nuclear Medicine, Ghent University, Ghent, Belgium
| | - Philip H Elsinga
- Molecular Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Aren van Waarde
- Molecular Imaging Center, Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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11
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Meng F, Tang C, Wang B, Liu T, Zhu X, Miao P. Peptide and carbon nanotubes assisted detection of apoptosis by square wave voltammetry. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.03.149] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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12
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Juenet M, Varna M, Aid-Launais R, Chauvierre C, Letourneur D. Nanomedicine for the molecular diagnosis of cardiovascular pathologies. Biochem Biophys Res Commun 2015; 468:476-84. [PMID: 26129770 DOI: 10.1016/j.bbrc.2015.06.138] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 06/20/2015] [Indexed: 11/15/2022]
Abstract
Predicting acute clinical events caused by atherosclerotic plaque rupture remains a clinical challenge. Anatomic mapping of the vascular tree provided by standard imaging technologies is not always sufficient for a robust diagnosis. Yet biological mechanisms leading to unstable plaques have been identified and corresponding biomarkers have been described. Nanosystems charged with contrast agents and targeted towards these specific biomarkers have been developed for several types of imaging modalities. The first systems that have reached the clinic are ultrasmall superparamagnetic iron oxides for Magnetic Resonance Imaging. Their potential relies on their passive accumulation by predominant physiological mechanisms in rupture-prone plaques. Active targeting strategies are under development to improve their specificity and set up other types of nanoplatforms. Preclinical results show a huge potential of nanomedicine for cardiovascular diagnosis, as long as the safety of these nanosystems in the body is studied in depth.
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Affiliation(s)
- Maya Juenet
- Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, 75018, Paris, France; Université Paris 13, Institut Galilée, Sorbonne Paris Cité, 75018, Paris, France
| | - Mariana Varna
- Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, 75018, Paris, France; Université Paris 13, Institut Galilée, Sorbonne Paris Cité, 75018, Paris, France
| | - Rachida Aid-Launais
- Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, 75018, Paris, France; Université Paris 13, Institut Galilée, Sorbonne Paris Cité, 75018, Paris, France
| | - Cédric Chauvierre
- Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, 75018, Paris, France; Université Paris 13, Institut Galilée, Sorbonne Paris Cité, 75018, Paris, France.
| | - Didier Letourneur
- Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, 75018, Paris, France; Université Paris 13, Institut Galilée, Sorbonne Paris Cité, 75018, Paris, France
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13
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Estelrich J, Sánchez-Martín MJ, Busquets MA. Nanoparticles in magnetic resonance imaging: from simple to dual contrast agents. Int J Nanomedicine 2015; 10:1727-41. [PMID: 25834422 PMCID: PMC4358688 DOI: 10.2147/ijn.s76501] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Magnetic resonance imaging (MRI) has become one of the most widely used and powerful tools for noninvasive clinical diagnosis owing to its high degree of soft tissue contrast, spatial resolution, and depth of penetration. MRI signal intensity is related to the relaxation times (T1, spin–lattice relaxation and T2, spin–spin relaxation) of in vivo water protons. To increase contrast, various inorganic nanoparticles and complexes (the so-called contrast agents) are administered prior to the scanning. Shortening T1 and T2 increases the corresponding relaxation rates, 1/T1 and 1/T2, producing hyperintense and hypointense signals respectively in shorter times. Moreover, the signal-to-noise ratio can be improved with the acquisition of a large number of measurements. The contrast agents used are generally based on either iron oxide nanoparticles or ferrites, providing negative contrast in T2-weighted images; or complexes of lanthanide metals (mostly containing gadolinium ions), providing positive contrast in T1-weighted images. Recently, lanthanide complexes have been immobilized in nanostructured materials in order to develop a new class of contrast agents with functions including blood-pool and organ (or tumor) targeting. Meanwhile, to overcome the limitations of individual imaging modalities, multimodal imaging techniques have been developed. An important challenge is to design all-in-one contrast agents that can be detected by multimodal techniques. Magnetoliposomes are efficient multimodal contrast agents. They can simultaneously bear both kinds of contrast and can, furthermore, incorporate targeting ligands and chains of polyethylene glycol to enhance the accumulation of nanoparticles at the site of interest and the bioavailability, respectively. Here, we review the most important characteristics of the nanoparticles or complexes used as MRI contrast agents.
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Affiliation(s)
- Joan Estelrich
- Departament de Fisicoquímica, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Catalonia, Spain ; Institut de Nanociència I Nanotecnologia (IN UB), Barcelona, Catalonia, Spain
| | - María Jesús Sánchez-Martín
- Departament de Fisicoquímica, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Maria Antònia Busquets
- Departament de Fisicoquímica, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Catalonia, Spain ; Institut de Nanociència I Nanotecnologia (IN UB), Barcelona, Catalonia, Spain
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14
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Zeng W, Wang X, Xu P, Liu G, Eden HS, Chen X. Molecular imaging of apoptosis: from micro to macro. Theranostics 2015; 5:559-82. [PMID: 25825597 PMCID: PMC4377726 DOI: 10.7150/thno.11548] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 02/18/2015] [Indexed: 12/21/2022] Open
Abstract
Apoptosis, or programmed cell death, is involved in numerous human conditions including neurodegenerative diseases, ischemic damage, autoimmune disorders and many types of cancer, and is often confused with other types of cell death. Therefore strategies that enable visualized detection of apoptosis would be of enormous benefit in the clinic for diagnosis, patient management, and development of new therapies. In recent years, improved understanding of the apoptotic machinery and progress in imaging modalities have provided opportunities for researchers to formulate microscopic and macroscopic imaging strategies based on well-defined molecular markers and/or physiological features. Correspondingly, a large collection of apoptosis imaging probes and approaches have been documented in preclinical and clinical studies. In this review, we mainly discuss microscopic imaging assays and macroscopic imaging probes, ranging in complexity from simple attachments of reporter moieties to proteins that interact with apoptotic biomarkers, to rationally designed probes that target biochemical changes. Their clinical translation will also be our focus.
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15
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Cheng D, Li X, Zhang C, Tan H, Wang C, Pang L, Shi H. Detection of vulnerable atherosclerosis plaques with a dual-modal single-photon-emission computed tomography/magnetic resonance imaging probe targeting apoptotic macrophages. ACS APPLIED MATERIALS & INTERFACES 2015; 7:2847-55. [PMID: 25569777 DOI: 10.1021/am508118x] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Atherosclerosis (AS), especially the vulnerable AS plaque rupture-induced acute obstructive vascular disease, is a leading cause of death. Accordingly, there is a need for an effective method to draw accurate predictions about AS progression and plaque vulnerability. Herein we report on an approach to constructing a hybrid nanoparticle system using a single-photon-emission computed tomography (SPECT)/magnetic resonance imaging (MRI) multimodal probe, aiming for a comprehensive evaluation of AS progression by achieving high sensitivity along with high resolution. Ultrasmall superparamagnetic iron oxide (USPIO) was covered by aminated poly(ethylene glycol) (PEG) and carboxylated PEG simultaneously and then functionalized with diethylenetriaminepentacetate acid for (99m)Tc coordination and subsequently Annexin V for targeting apoptotic macrophages abundant in vulnerable plaques. The in vivo accumulations of imaging probe reflected by SPECT and MRI were consistent and accurate in highlighting lesions. Intense radioactive signals detected by SPECT facilitated focus recognization and quantification, while USPIO-based T2-weighted MRI improved the focal localization and volumetry of AS plaques. For subsequent ex vivo planar images, targeting effects were further confirmed by immunohistochemistry, including CD-68 and TUNEL staining; meanwhile, the degree of concentration was proven to be statistically correlated with the Oil Red O staining results. In conclusion, these results indicated that the Annexin V-modified hybrid nanoparticle system specifically targeted the vulnerable AS plaques containing apoptotic macrophages and could be of great value in the invasively accurate detection of vulnerable plaques.
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Affiliation(s)
- Dengfeng Cheng
- Department of Nuclear Medicine and ∥Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University , Shanghai 200032, China
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16
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Van Koninckxloo A, Henoumont C, Laurent S, Muller RN, Vander Elst L. NMR chemical shift study of the interaction of selected peptides with liposomal and micellar models of apoptotic cells. J Biol Inorg Chem 2014; 19:1367-76. [PMID: 25287364 DOI: 10.1007/s00775-014-1195-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 09/12/2014] [Indexed: 11/30/2022]
Abstract
The interaction between two peptides previously selected by phage display to target apoptotic cells and phospholipidic models of these cells (liposomes or micelles made of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and/or 1,2-dipalmitoyl-sn-glycero-3-phospho-L-serine (DPPS, phosphatidylserine analog) was studied by the simple analysis of the changes induced on the proton NMR chemical shifts of the peptides. Our approach which does not need healthy and/or apoptotic cells for assessing the affinity of different peptides is fast and efficient and requires small amounts of peptide to determine the association constant, the interacting protons, and the number of interaction sites. The micellar model gave more reliable results than the liposomal one. The preferential interaction of the peptide with DPPS was evidenced by the change of the chemical shifts of specific amino acids of the peptides. Our micellar model is thus well suited to mimic apoptotic cells.
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Affiliation(s)
- Aurore Van Koninckxloo
- Department of General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, 7000, Mons, Belgium
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17
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Hashim Z, Green M, Chung PH, Suhling K, Protti A, Phinikaridou A, Botnar R, Khanbeigi RA, Thanou M, Dailey LA, Commander NJ, Rowland C, Scott J, Jenner D. Gd-containing conjugated polymer nanoparticles: bimodal nanoparticles for fluorescence and MRI imaging. NANOSCALE 2014; 6:8376-8386. [PMID: 24941427 DOI: 10.1039/c4nr01491j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Aqueous bifunctional semiconductor polymer nanoparticles (SPNs), approximately 30 nm in diameter (as measured from electron microscopy), were synthesised using hydrophobic conjugated polymers, amphiphilic phospholipids and a gadolinium-containing lipid. Their fluorescence quantum yields and extinction coefficients were determined, and their MRI T₁-weighted relaxation times in water were measured. The bimodal nanoparticles were readily taken up by HeLa and murine macrophage-like J774 cells as demonstrated by confocal laser scanning microscopy, and were found to be MRI-active, generating a linear relationship between T₁-weighted relaxation rates and gadolinium concentrations The synthesis is relatively simple, and can easily result in milligrams of materials, although we fully expect scale-up to the gram level to be easily realised.
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Affiliation(s)
- Zeina Hashim
- Department of Physics, King's College London, Strand, London, WC2R 2LS, UK.
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18
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Multifunctional hybrid silica nanoparticles based on [Mo6Br14]2− phosphorescent nanosized clusters, magnetic γ-Fe2O3 and plasmonic gold nanoparticles. J Colloid Interface Sci 2014; 424:132-40. [PMID: 24767509 DOI: 10.1016/j.jcis.2014.03.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 03/02/2014] [Indexed: 11/22/2022]
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19
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Winter PM, Pearce J, Chu Z, McPherson CM, Takigiku R, Lee JH, Qi X. Imaging of brain tumors with paramagnetic vesicles targeted to phosphatidylserine. J Magn Reson Imaging 2014; 41:1079-87. [PMID: 24797437 DOI: 10.1002/jmri.24654] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/14/2014] [Accepted: 04/17/2014] [Indexed: 01/06/2023] Open
Abstract
PURPOSE To investigate paramagnetic saposin C and dioleylphosphatidylserine (SapC-DOPS) vesicles as a targeted contrast agent for imaging phosphatidylserine (PS) expressed by glioblastoma multiforme (GBM) tumors. MATERIALS AND METHODS Gd-DTPA-BSA/SapC-DOPS vesicles were formulated, and the vesicle diameter and relaxivity were measured. Targeting of Gd-DTPA-BSA/SapC-DOPS vesicles to tumor cells in vitro and in vivo was compared with nontargeted paramagnetic vesicles (lacking SapC). Mice with GBM brain tumors were imaged at 3, 10, 20, and 24 h postinjection to measure the relaxation rate (R1) in the tumor and the normal brain. RESULTS The mean diameter of vesicles was 175 nm, and the relaxivity at 7 Tesla was 3.32 (s*mM)(-1) relative to the gadolinium concentration. Gd-DTPA-BSA/SapC-DOPS vesicles targeted cultured cancer cells, leading to an increased R1 and gadolinium level in the cells. In vivo, Gd-DTPA-BSA/SapC-DOPS vesicles produced a 9% increase in the R1 of GBM brain tumors in mice 10 h postinjection, but only minimal changes (1.2% increase) in the normal brain. Nontargeted paramagnetic vesicles yielded minimal change in the tumor R1 at 10 h postinjection (1.3%). CONCLUSION These experiments demonstrate that Gd-DTPA-BSA/SapC-DOPS vesicles can selectively target implanted brain tumors in vivo, providing noninvasive mapping of the cancer biomarker PS.
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Affiliation(s)
- Patrick M Winter
- Department of Radiology, Cincinnati Children's Hospital, Cincinnati, Ohio, USA
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20
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Facile and quantitative electrochemical detection of yeast cell apoptosis. Sci Rep 2014; 4:4373. [PMID: 24625374 PMCID: PMC3953722 DOI: 10.1038/srep04373] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 02/24/2014] [Indexed: 01/18/2023] Open
Abstract
An electrochemical method based on square wave anodic stripping voltammetry (SWASV) was developed to detect the apoptosis of yeast cells conveniently and quantitatively through the high affinity between Cu2+ and phosphatidylserine (PS) translocated from the inner to the outer plasma membrane of the apoptotic cells. The combination of negatively charged PS and Cu2+ could decrease the electrochemical response of Cu2+ on the electrode. The results showed that the apoptotic rates of cells could be detected quantitatively through the variations of peak currents of Cu2+ by SWASV, and agreed well with those obtained through traditional flow cytometry detection. This work thus may provide a novel, simple, immediate and accurate detection method for cell apoptosis.
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Kang B, Choi SJ. Preparation of stabilized magnetic nanoparticles with polymerizable lipid and anchor compounds. Anal Biochem 2014; 446:87-9. [PMID: 24215908 DOI: 10.1016/j.ab.2013.10.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 09/28/2013] [Accepted: 10/30/2013] [Indexed: 11/26/2022]
Abstract
Although the lipid-based method for coating of magnetic nanoparticles (MNPs) is rapid and simple, the unstable state of the lipid layer is a major limitation for the practical application of this method. We devised a method to prepare stabilized MNPs by covalent modifications such as lipid polymerization and anchoring of the lipid layer. The stability of the modified lipid layer was demonstrated by the stable status of enzymes immobilized on the MNPs and the resistance of the MNPs to aggregation. We also determined the maximum ratio of nonpolymerizable lipophilic compounds that can be included in the layer without significantly reducing stability.
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Affiliation(s)
- Boram Kang
- Department of Chemistry, Gangneung-Wonju National University, Gangneung 210-702, Republic of Korea
| | - Suk-Jung Choi
- Department of Chemistry, Gangneung-Wonju National University, Gangneung 210-702, Republic of Korea.
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22
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Accardo A, Ringhieri P, Szekely N, Pipich V, Luchini A, Paduano L, Tesauro D. Structural insights on nanoparticles containing gadolinium complexes as potential theranostic. Colloid Polym Sci 2014. [DOI: 10.1007/s00396-013-3159-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Wang Z, Zhu J, Chen Y, Geng K, Qian N, Cheng L, Lu Z, Pan Y, Guo L, Li Y, Gu H. Folic acid modified superparamagnetic iron oxide nanocomposites for targeted hepatic carcinoma MR imaging. RSC Adv 2014. [DOI: 10.1039/c3ra45878d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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24
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Nazari M, Minai-Tehrani A, Emamzadeh R. Comparison of different probes based on labeled annexin V for detection of apoptosis. RSC Adv 2014. [DOI: 10.1039/c4ra07577c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Schematic representation of the different probes based on annexin V for the detection of apoptosis.
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Affiliation(s)
- Mahboobeh Nazari
- Nanobiotechnology Research Center
- Avicenna Research Institute (ACECR)
- Tehran, Iran
| | - Arash Minai-Tehrani
- Nanobiotechnology Research Center
- Avicenna Research Institute (ACECR)
- Tehran, Iran
| | - Rahman Emamzadeh
- Department of Biology
- Faculty of Science
- University of Isfahan
- Isfahan, Iran
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25
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Cao Z, Yue X, Li X, Dai Z. Stabilized magnetic cerasomes for drug delivery. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:14976-83. [PMID: 24188471 DOI: 10.1021/la401965a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Doxorubicin hydrochloride (DOX)-loaded magnetic cerasomes (DLMCs) were successfully constructed by loading both hydrophobic Fe3O4 nanoparticles (NPs) and antitumor drug DOX into the aqueous interior of cerasomes via facile one-step construction. A possible explanation is that the hydrophobic Fe3O4 NPs can be trapped inside the aqueous core of cerasomes through the formation of an intermediate Fe3O4/micelle complex. It was found that the loading content of Fe3O4 in DLMCs could reach the maximum at a Fe3O4/lipid molar ratio of 4:1. Moreover, DLMCs demonstrated high superparamagnetism and responded strongly to magnetic fields. In addition, DLMCs had a high encapsulation efficiency of 43.4 ± 4.7% and a high drug loading content of 3.2 ± 1.3%. In comparison to drug-loaded liposomes, DLMCs exhibited higher storage stability and better sustained release behavior. A cellular uptake study showed that the use of an external magnetic field enables a rapid and efficient uptake of DLMCs by cancer cells, resulting in higher capability to kill tumor cells than non-magnetic drug-loaded cerasomes. This study suggests that magnetic cerasome offers a potential and effective drug carrier for anticancer applications.
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Affiliation(s)
- Zhong Cao
- Department of Biomedical Engineering, College of Engineering, Peking University , Beijing 100871, People's Republic of China
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26
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Weingart J, Vabbilisetty P, Sun XL. Membrane mimetic surface functionalization of nanoparticles: methods and applications. Adv Colloid Interface Sci 2013; 197-198:68-84. [PMID: 23688632 PMCID: PMC3729609 DOI: 10.1016/j.cis.2013.04.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 04/18/2013] [Accepted: 04/19/2013] [Indexed: 11/22/2022]
Abstract
Nanoparticles (NPs), due to their size-dependent physical and chemical properties, have shown remarkable potential for a wide range of applications over the past decades. Particularly, the biological compatibilities and functions of NPs have been extensively studied for expanding their potential in areas of biomedical application such as bioimaging, biosensing, and drug delivery. In doing so, surface functionalization of NPs by introducing synthetic ligands and/or natural biomolecules has become a critical component in regard to the overall performance of the NP system for its intended use. Among known examples of surface functionalization, the construction of an artificial cell membrane structure, based on phospholipids, has proven effective in enhancing biocompatibility and has become a viable alternative to more traditional modifications, such as direct polymer conjugation. Furthermore, certain bioactive molecules can be immobilized onto the surface of phospholipid platforms to generate displays more reminiscent of cellular surface components. Thus, NPs with membrane-mimetic displays have found use in a range of bioimaging, biosensing, and drug delivery applications. This review herein describes recent advances in the preparations and characterization of integrated functional NPs covered by artificial cell membrane structures and their use in various biomedical applications.
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Affiliation(s)
- Jacob Weingart
- Department of Chemistry, Cleveland State University, Cleveland, OH 44115
| | | | - Xue-Long Sun
- Department of Chemistry, Cleveland State University, Cleveland, OH 44115
- Chemical and Biomedical Engineering, Cleveland State University, Cleveland, OH 44115
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27
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Chen WY, Chen LY, Ou CM, Huang CC, Wei SC, Chang HT. Synthesis of fluorescent gold nanodot-liposome hybrids for detection of phospholipase C and its inhibitor. Anal Chem 2013; 85:8834-40. [PMID: 23964669 DOI: 10.1021/ac402043t] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We report the synthesis of fluorescent 11-mercaptoundecanoic acid-gold nanodot-liposome (11-MUA-Au ND/Lip) hybrids by incorporation of gold nanoparticles (∼3 nm) and 11-MUA molecules in hydrophobic phospholipid membranes that self-assemble to form small unilamellar vesicles. A simple and homogeneous fluorescence assay for phospholipase C (PLC) was developed on the basis of the fluorescence quenching of 11-MUA-Au ND/Lip hybrids in aqueous solution. The fluorescence of the 11-MUA-Au ND/Lip hybrids is quenched by oxygen (O2) molecules in solution, and quenching is reduced in the presence of PLC. PLC catalyzes the hydrolysis of phosphatidylcholine units from Lip to yield diacylglycerol (DAG) and phosphocholine (PC) products, leading to the decomposition of Lip. The diacylglycerol further interacts with 11-MUA-Au NDs via hydrophobic interactions, leading to inhibition of O2 quenching. The 11-MUA-Au ND/Lip probe provides a limit of detection (at a signal-to-noise ratio of 3) of 0.21 nM for PLC, with high selectivity over other proteins, enzymes, and phospholipases. We have validated the practicality of using this probe for the determination of PLC concentrations in breast cancer cells (MCF-7 and MDA-MB-231 cell lines) and nontumor cells (MCF-10A cell line), revealing that the PLC activity in the first two is at least 1.5-fold higher than that in the third. An inhibitor assay using 11-MUA-Au ND/Lip hybrids demonstrated that tricyclodecan-9-yl potassium xanthate (D609) inhibits PLC (10 nM) with an IC50 value of 3.81 ± 0.22 μM. This simple, sensitive, and selective approach holds great potential for detection of PLC in cancer cells and for the screening of anti-PLC drugs.
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Affiliation(s)
- Wei-Yu Chen
- Department of Chemistry, National Taiwan University , Taipei 10617, Taiwan
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28
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Geelen T, Paulis LE, Coolen BF, Nicolay K, Strijkers GJ. Passive targeting of lipid-based nanoparticles to mouse cardiac ischemia-reperfusion injury. CONTRAST MEDIA & MOLECULAR IMAGING 2013; 8:117-26. [PMID: 23281284 DOI: 10.1002/cmmi.1501] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Revised: 07/12/2012] [Accepted: 08/21/2012] [Indexed: 11/10/2022]
Abstract
Reperfusion therapy is commonly applied after a myocardial infarction. Reperfusion, however, causes secondary damage. An emerging approach for treatment of ischemia-reperfusion (IR) injury involves the delivery of therapeutic nanoparticles to the myocardium to promote cell survival and constructively influence scar formation and myocardial remodeling. The aim of this study was to provide detailed understanding of the in vivo accumulation and distribution kinetics of lipid-based nanoparticles (micelles and liposomes) in a mouse model of acute and chronic IR injury. Both micelles and liposomes contained paramagnetic and fluorescent lipids and could therefore be visualized with magnetic resonance imaging (MRI) and confocal laser scanning microscopy (CLSM). In acute IR injury both types of nanoparticles accumulated massively and specifically in the infarcted myocardium as revealed by MRI and CLSM. Micelles displayed faster accumulation kinetics, probably owing to their smaller size. Liposomes occasionally co-localized with vessels and inflammatory cells. In chronic IR injury only minor accumulation of micelles was observed with MRI. Nevertheless, CLSM revealed specific accumulation of both micelles and liposomes in the infarct area 3 h after administration. Owing to their specific accumulation in the infarcted myocardium, lipid-based micelles and liposomes are promising vehicles for (visualization of) drug delivery in myocardial infarction.
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Affiliation(s)
- Tessa Geelen
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands
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29
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Cormode DP, Sanchez-Gaytan BL, Mieszawska AJ, Fayad ZA, Mulder WJM. Inorganic nanocrystals as contrast agents in MRI: synthesis, coating and introduction of multifunctionality. NMR IN BIOMEDICINE 2013; 26:766-80. [PMID: 23303729 PMCID: PMC3674179 DOI: 10.1002/nbm.2909] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Revised: 10/23/2012] [Accepted: 11/21/2012] [Indexed: 05/18/2023]
Abstract
Inorganic nanocrystals have myriad applications in medicine, including their use as drug or gene delivery complexes, therapeutic hyperthermia agents, in diagnostic systems and as contrast agents in a wide range of medical imaging techniques. In MRI, nanocrystals can produce contrast themselves, with iron oxides having been the most extensively explored, or can be given a coating that generates MR contrast, for example gold nanoparticles coated with gadolinium chelates. These MR-active nanocrystals can be used for imaging of the vasculature, liver and other organs, as well as molecular imaging, cell tracking and theranostics. As a result of these exciting applications, the synthesis and rendering of these nanocrystals as water soluble and biocompatible are therefore highly desirable. We discuss aqueous phase and organic phase methods for the synthesis of inorganic nanocrystals, such as gold, iron oxides and quantum dots. The pros and cons of the various methods are highlighted. We explore various methods for making nanocrystals biocompatible, i.e. direct synthesis of nanocrystals coated with biocompatible coatings, ligand substitution, amphiphile coating and embedding in carrier matrices that can be made biocompatible. Various examples are highlighted and their applications explained. These examples signify that the synthesis of biocompatible nanocrystals with controlled properties has been achieved by numerous research groups and can be applied to a wide range of applications. Therefore, we expect to see reports of preclinical applications of ever more complex MRI-active nanoparticles and their wider exploitation, as well as in novel clinical settings.
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Affiliation(s)
- David P. Cormode
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
- Radiology Department, University of Pennsylvania, 3400 Spruce Street, 1 Silverstein, Philadelphia, PA, 19104
| | - Brenda L. Sanchez-Gaytan
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
| | - Aneta J. Mieszawska
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
| | - Zahi A. Fayad
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
| | - Willem J. M. Mulder
- Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1234, New York, NY 10029, Tel. +1-212-241-6549, Fax +1-240-368-8096
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30
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Langereis S, Geelen T, Grüll H, Strijkers GJ, Nicolay K. Paramagnetic liposomes for molecular MRI and MRI-guided drug delivery. NMR IN BIOMEDICINE 2013; 26:728-44. [PMID: 23703874 DOI: 10.1002/nbm.2971] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 04/04/2013] [Accepted: 04/05/2013] [Indexed: 05/07/2023]
Abstract
Liposomes are a versatile class of nanoparticles with tunable properties, and multiple liposomal drug formulations have been clinically approved for cancer treatment. In recent years, an extensive library of gadolinium (Gd)-containing liposomal MRI contrast agents has been developed for molecular and cellular imaging of disease-specific markers and for image-guided drug delivery. This review discusses the advances in the development and novel applications of paramagnetic liposomes in molecular and cellular imaging, and in image-guided drug delivery. A high targeting specificity has been achieved in vitro using ligand-conjugated paramagnetic liposomes. On targeting of internalizing cell receptors, the effective longitudinal relaxivity r1 of paramagnetic liposomes is modulated by compartmentalization effects. This provides unique opportunities to monitor the biological fate of liposomes. In vivo contrast-enhanced MRI studies with nontargeted liposomes have shown the extravasation of liposomes in diseases associated with endothelial dysfunction, such as tumors and myocardial infarction. The in vivo use of targeted paramagnetic liposomes has facilitated the specific imaging of pathophysiological processes, such as angiogenesis and inflammation. Paramagnetic liposomes loaded with drugs have been utilized for therapeutic interventions. MR image-guided drug delivery using such liposomes allows the visualization and quantification of local drug delivery.
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Affiliation(s)
- Sander Langereis
- Department of Minimally Invasive Healthcare, Philips Research Eindhoven, Eindhoven, the Netherlands
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32
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Accardo A, Gianolio E, Arena F, Barnert S, Schubert R, Tesauro D, Morelli G. Nanostructures based on monoolein or diolein and amphiphilic gadolinium complexes as MRI contrast agents. J Mater Chem B 2013; 1:617-628. [DOI: 10.1039/c2tb00329e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Waerzeggers Y, Monfared P, Viel T, Faust A, Kopka K, Schäfers M, Tavitian B, Winkeler A, Jacobs A. Specific biomarkers of receptors, pathways of inhibition and targeted therapies: pre-clinical developments. Br J Radiol 2012; 84 Spec No 2:S168-78. [PMID: 22433827 DOI: 10.1259/bjr/66405626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
A deeper understanding of the role of specific genes, proteins, pathways and networks in health and disease, coupled with the development of technologies to assay these molecules and pathways in patients, promises to revolutionise the practice of clinical medicine. Especially the discovery and development of novel drugs targeted to disease-specific alterations could benefit significantly from non-invasive imaging techniques assessing the dynamics of specific disease-related parameters. Here we review the application of imaging biomarkers in the management of patients with brain tumours, especially malignant glioma. In our other review we focused on imaging biomarkers of general biochemical and physiological processes related with tumour growth such as energy, protein, DNA and membrane metabolism, vascular function, hypoxia and cell death. In this part of the review, we will discuss the use of imaging biomarkers of specific disease-related molecular genetic alterations such as apoptosis, angiogenesis, cell membrane receptors and signalling pathways and their application in targeted therapies.
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Affiliation(s)
- Y Waerzeggers
- European Institute for Molecular Imaging, Westfaelische Wilhelms-University, Muenster, Germany
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34
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Quillard T, Libby P. Molecular imaging of atherosclerosis for improving diagnostic and therapeutic development. Circ Res 2012; 111:231-44. [PMID: 22773426 DOI: 10.1161/circresaha.112.268144] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Despite recent progress, cardiovascular and allied metabolic disorders remain a worldwide health challenge. We must identify new targets for therapy, develop new agents for clinical use, and deploy them in a clinically effective and cost-effective manner. Molecular imaging of atherosclerotic lesions has become a major experimental tool in the last decade, notably by providing a direct gateway to the processes involved in atherogenesis and its complications. This review summarizes the current status of molecular imaging approaches that target the key processes implicated in plaque formation, development, and disruption and highlights how the refinement and application of such tools might aid the development and evaluation of novel therapeutics.
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Affiliation(s)
- Thibaut Quillard
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
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35
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Geelen T, Paulis LEM, Coolen BF, Nicolay K, Strijkers GJ. Contrast-enhanced MRI of murine myocardial infarction - part I. NMR IN BIOMEDICINE 2012; 25:953-968. [PMID: 22308108 DOI: 10.1002/nbm.2768] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 11/07/2011] [Accepted: 11/29/2011] [Indexed: 05/31/2023]
Abstract
The use of contrast agents has added considerable value to the existing cardiac MRI toolbox that can be used to study murine myocardial infarction, as it enables detailed in vivo visualization of the molecular and cellular processes that occur in the infarcted and remote tissue. A variety of non-targeted and targeted contrast agents to study myocardial infarction are available and under development. Manganese, which acts as a calcium analogue, can be used to assess cell viability. Traditionally, low-molecular-weight Gd-containing contrast agents are employed to measure infarct size in a late gadolinium enhancement experiment. Gd-based blood-pool agents are used to study the vascular status of the myocardium. The use of targeted contrast agents facilitates more detailed imaging of pathophysiological processes in the acute and chronic infarct. Cell death was visualized by contrast agents functionalized with annexin A5 that binds specifically to phosphatidylserine accessible on dying cells and with an agent that binds to the exposed DNA of dead cells. Inflammation in the myocardium was depicted by contrast agents that target cell adhesion molecules expressed on activated endothelium, by contrast agents that are phagocytosed by inflammatory cells, and by using a probe that targets enzymes excreted by inflammatory cells. Cardiac remodeling processes were visualized with a contrast agent that binds to angiogenic vasculature and with an MR probe that specifically binds to collagen in the fibrotic myocardium. These recent advances in murine contrast-enhanced cardiac MRI have made a substantial contribution to the visualization of the pathophysiology of myocardial infarction, cardiac remodeling processes and the progression to heart failure, which helps to design new treatments. This review discusses the advances and challenges in the development and application of MRI contrast agents to study murine myocardial infarction.
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Affiliation(s)
- Tessa Geelen
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, the Netherlands
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36
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Sailor MJ, Park JH. Hybrid nanoparticles for detection and treatment of cancer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:3779-802. [PMID: 22610698 PMCID: PMC3517011 DOI: 10.1002/adma.201200653] [Citation(s) in RCA: 296] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 04/05/2012] [Indexed: 05/04/2023]
Abstract
There is currently considerable effort to incorporate both diagnostic and therapeutic functions into a single nanoscale system for the more effective treatment of cancer. Nanoparticles have great potential to achieve such dual functions, particularly if more than one type of nanostructure can be incorporated in a nanoassembly, referred to in this review as a hybrid nanoparticle. Here we review recent developments in the synthesis and evaluation of such hybrid nanoparticles based on two design strategies (barge vs. tanker), in which liposomal, micellar, porous silica, polymeric, viral, noble metal, and nanotube systems are incorporated either within (barge) or at the surface of (tanker) a nanoparticle. We highlight the design factors that should be considered to obtain effective nanodevices for cancer detection and treatment.
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Affiliation(s)
- Michael J Sailor
- Materials Science and Engineering Program, Department of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman, La Jolla, CA 92093, USA.
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37
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Magnetic Nanoparticles as Contrast Agents for Magnetic Resonance Imaging. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2012. [DOI: 10.1007/s40010-012-0038-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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38
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Haimovitz-Friedman A, Yang TIJ, Thin TH, Verheij M. Imaging Radiotherapy-Induced Apoptosis. Radiat Res 2012; 177:467-82. [DOI: 10.1667/rr2576.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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39
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Caravan P, Zhang Z. Structure-Relaxivity Relationships among Targeted MR Contrast Agents. Eur J Inorg Chem 2012; 2012:1916-1923. [DOI: 10.1002/ejic.201101364] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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Straathof R, Strijkers GJ, Nicolay K. Target-specific paramagnetic and superparamagnetic micelles for molecular MR imaging. Methods Mol Biol 2012; 771:691-715. [PMID: 21874503 DOI: 10.1007/978-1-61779-219-9_34] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Treatment of disease can only be effective when timely and accurate diagnosis of the pathology is achieved. More precise diagnosis can be accomplished if the underlying molecular processes involved in the pathology can be imaged in vivo. This is the field of molecular imaging, which aims to visualize cellular function and molecular processes in living organisms in a non-invasive way. With that aim, molecular markers are specifically targeted by imaging contrast agents. Molecular MRI needs powerful targeted contrast agents. For that purpose, target-specific gadolinium-containing paramagnetic and superparamagnetic, iron oxide-based micelles have been developed. Micelles are lipid-based nanoparticles which are biocompatible and carry a high payload of MR contrast-generating agent. The coupling of high-affinity ligands makes the micelles target-specific. Additionally, this lipid-based micelle platform allows for incorporation of contrast generating molecules for other imaging modalities, e.g., fluorescence or nuclear imaging. This permits applications for multiple imaging modalities, making micelles a highly versatile contrast agent.
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Affiliation(s)
- Roel Straathof
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
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41
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Pan Y, Guo M, Nie Z, Huang Y, Peng Y, Liu A, Qing M, Yao S. Colorimetric detection of apoptosis based on caspase-3 activity assay using unmodified gold nanoparticles. Chem Commun (Camb) 2012; 48:997-9. [DOI: 10.1039/c1cc15407a] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Abe H, Goto M, Kamiya N. Protein Lipidation Catalyzed by Microbial Transglutaminase. Chemistry 2011; 17:14004-8. [DOI: 10.1002/chem.201102121] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Indexed: 12/14/2022]
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43
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Monsky WL, Vien DS, Link DP. Nanotechnology Development and Utilization: A Primer for Diagnostic and Interventional Radiologists. Radiographics 2011; 31:1449-62. [DOI: 10.1148/rg.315105238] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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44
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Carroll MRJ, Huffstetler PP, Miles WC, Goff JD, Davis RM, Riffle JS, House MJ, Woodward RC, St Pierre TG. The effect of polymer coatings on proton transverse relaxivities of aqueous suspensions of magnetic nanoparticles. NANOTECHNOLOGY 2011; 22:325702. [PMID: 21772073 DOI: 10.1088/0957-4484/22/32/325702] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Iron oxide magnetic nanoparticles are good candidates for magnetic resonance imaging (MRI) contrast agents due to their high magnetic susceptibilities. Here we investigate 19 polyether-coated magnetite nanoparticle systems comprising three series. All systems were synthesized from the same batch of magnetite nanoparticles. A different polyether was used for each series. Each series comprised systems with systematically varied polyether loadings per particle. A highly significant (p < 0.0001) linear correlation (r = 0.956) was found between the proton relaxivity and the intensity-weighted average diameter measured by dynamic light scattering in the 19 particle systems studied. The intensity-weighted average diameter measured by dynamic light scattering is sensitive to small number fractions of larger particles/aggregates. We conclude that the primary effect leading to differences in proton relaxivity between systems arises from the small degree of aggregation within the samples, which appears to be determined by the nature of the polymer and, for one system, the degree of polymer loading of the particles. For the polyether coatings used in this study, any changes in relaxivity from differences in water exclusion or diffusion rates caused by the polymer are minor in comparison with the changes in relaxivity resulting from variations in the degree of aggregation.
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Affiliation(s)
- Matthew R J Carroll
- School of Physics, The University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia
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45
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Young VEL, Degnan AJ, Gillard JH. Advances in contrast media for vascular imaging of atherosclerosis. ACTA ACUST UNITED AC 2011. [DOI: 10.2217/iim.11.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Bogdanov A, Mazzanti ML. Molecular magnetic resonance contrast agents for the detection of cancer: past and present. Semin Oncol 2011; 38:42-54. [PMID: 21362515 DOI: 10.1053/j.seminoncol.2010.11.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Magnetic resonance imaging (MRI) is a powerful diagnostic tool with unsurpassed spatial resolution that is capable of providing detailed information about the structure and composition of tumors. The use of exogenously administered contrast agents allows compartment-specific enhancement of tumors, enabling imaging of functional blood and interstitial volumes. Current efforts are directed at enhancing the capabilities of MRI in oncology by adding contrast agents with molecular specificities to the growing armamentarium of diagnostic probes that produce signal by changing local proton relaxation times as a consequence of specific contrast agent binding to cell surface receptors or extracellular matrix components. We review herein the most notable examples, illustrating major trends in the development of specific probes for high-resolution imaging in molecular oncology.
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Affiliation(s)
- Alexei Bogdanov
- Department of Radiology, University of Massachusetts Medical School, Worcester, MA 01655, USA.
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47
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Amstad E, Kohlbrecher J, Müller E, Schweizer T, Textor M, Reimhult E. Triggered release from liposomes through magnetic actuation of iron oxide nanoparticle containing membranes. NANO LETTERS 2011; 11:1664-70. [PMID: 21351741 DOI: 10.1021/nl2001499] [Citation(s) in RCA: 201] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The ideal nanoscale drug delivery vehicle allows control over the released dose in space and time. We demonstrate that this can be achieved by stealth liposomes comprising self-assembled superparamagnetic iron oxide nanoparticles (NPs) individually stabilized with palmityl-nitroDOPA incorporated in the lipid membrane. Alternating magnetic fields were used to control timing and dose of repeatedly released cargo from such vesicles by locally heating the membrane, which changed its permeability without major effects on the environment.
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Affiliation(s)
- Esther Amstad
- Laboratory for Surface Science and Technology, ETH Zurich, Wolfgang-Pauli-Strasse 10, CH-8093 Zürich, Switzerland
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48
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The rise of metal radionuclides in medical imaging: copper-64, zirconium-89 and yttrium-86. Future Med Chem 2011; 3:599-621. [DOI: 10.4155/fmc.11.14] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Positron emission tomography, with its high sensitivity and resolution, is growing rapidly as an imaging technology for the diagnosis of many disease states. The success of this modality is reliant on instrumentation and the development of effective and novel targeted probes. Initially, research in this area was focused on what we will define in this article as ‘standard’ PET isotopes (carbon-11, nitrogen-13, oxygen-15 and fluorine-18), but the short half-lives of these isotopes limit radiopharmaceutical development to those that probe rapid biological processes. To overcome these limitations, there has been a rise in nonstandard isotope probe development in recent years. This review focuses on the biological probes and processes that have been examined, in additiom to the preclinical and clinical findings with nonstandard radiometals: copper-64, zirconium-89, and yttrium-86.
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Fattahi H, Laurent S, Liu F, Arsalani N, Elst LV, Muller RN. Magnetoliposomes as multimodal contrast agents for molecular imaging and cancer nanotheragnostics. Nanomedicine (Lond) 2011; 6:529-44. [DOI: 10.2217/nnm.11.14] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the emerging field of molecular and cellular imaging, flexible strategies to synthesize multimodal contrast agents with targeting ligands are required. Liposomes have the ability to combine with a large variety of nanomaterials, including superparamagnetic iron oxide nanoparticles, to form magnetoliposomes (MLs). MLs can be used as highly efficient MRI contrast agents. Owing to their high flexibility, MLs can be associated with other imaging modality probes to be used as multimodal contrast agents. By using a thermosensitive lipid bilayer in the ML structure, these biocompatible systems offer many possibilities for targeting and delivering therapeutic agents for ‘theragnostics’, a coincident therapy and diagnosis strategy. This article deals with the fast-growing field of MLs as biomedical diagnostic tools. Different kinds of MLs, their preparation methods, as well as their surface modification with different imaging probes, are discussed. ML applications as multimodal contrast agents and in theragnostics are reviewed. Some important issues for the biomedical uses of magnetic liposomes, such as toxicity, are summarized.
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Affiliation(s)
- Hassan Fattahi
- Department of General, Organic & Biomedical Chemistry, NMR & Molecular Imaging Laboratory, University of Mons, Avenue Maistriau, 19, B-7000 Mons, Belgium
- Polymer research laboratory, Department of Organic & Biochemistry, Faculty of Chemistry, University of Tabriz, 29 Bahman Blvd, Tabriz, Iran
| | - Sophie Laurent
- Department of General, Organic & Biomedical Chemistry, NMR & Molecular Imaging Laboratory, University of Mons, Avenue Maistriau, 19, B-7000 Mons, Belgium
| | - Fujun Liu
- Department of General, Organic & Biomedical Chemistry, NMR & Molecular Imaging Laboratory, University of Mons, Avenue Maistriau, 19, B-7000 Mons, Belgium
| | - Nasser Arsalani
- Polymer research laboratory, Department of Organic & Biochemistry, Faculty of Chemistry, University of Tabriz, 29 Bahman Blvd, Tabriz, Iran
| | - Luce Vander Elst
- Department of General, Organic & Biomedical Chemistry, NMR & Molecular Imaging Laboratory, University of Mons, Avenue Maistriau, 19, B-7000 Mons, Belgium
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50
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Wang G, Su X. The synthesis and bio-applications of magnetic and fluorescent bifunctional composite nanoparticles. Analyst 2011; 136:1783-98. [PMID: 21431200 DOI: 10.1039/c1an15036g] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Magnetic-fluorescent composite nanoparticles as a new kind of nanoparticle have attracted much attention in recent years. The composite nanoparticles combine the fluorescent properties, magnetic properties and the physical properties of nano-size, so they can offer a range of potential applications, such as bioseparation and bio-imaging, tumor cell localization, and even cancer treatment. This Minireview will introduce the main synthesis strategies for the fabrication of magnetic-fluorescent composite nanoparticles, the current and potential bio-application of magnetic-fluorescent nanocomposites, including protein and DNA separation and detection, bio-imaging and sorting in vitro and in vivo, drug delivery and the cancer treatment.
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Affiliation(s)
- Guannan Wang
- Department of Analytical Chemistry, College of Chemistry, Jilin University, Changchun, 130012, China
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