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Yen TYC, Abbasi AZ, He C, Lip HY, Park E, Amini MA, Adissu HA, Foltz W, Rauth AM, Henderson J, Wu XY. Biocompatible and bioactivable terpolymer-lipid-MnO 2 Nanoparticle-based MRI contrast agent for improving tumor detection and delineation. Mater Today Bio 2024; 25:100954. [PMID: 38304342 PMCID: PMC10832465 DOI: 10.1016/j.mtbio.2024.100954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/22/2023] [Accepted: 01/13/2024] [Indexed: 02/03/2024] Open
Abstract
Early and precise detection of solid tumor cancers is critical for improving therapeutic outcomes. In this regard, magnetic resonance imaging (MRI) has become a useful tool for tumor diagnosis and image-guided therapy. However, its effectiveness is limited by the shortcomings of clinically available gadolinium-based contrast agents (GBCAs), i.e. poor tumor penetration and retention, and safety concerns. Thus, we have developed a novel nanoparticulate contrast agent using a biocompatible terpolymer and lipids to encapsulate manganese dioxide nanoparticles (TPL-MDNP). The TPL-MDNP accumulated in tumor tissue and produced paramagnetic Mn2+ ions, enhancing T1-weight MRI contrast via the reaction with H2O2 rich in the acidic tumor microenvironment. Compared to the clinically used GBCA, Gadovist®1.0, TPL-MDNP generated stronger T1-weighted MR signals by over 2.0-fold at 30 % less of the recommended clinical dose with well-defined tumor delineation in preclinical orthotopic tumor models of brain, breast, prostate, and pancreas. Importantly, the MRI signals were retained for 60 min by TPL-MDNP, much longer than Gadovist®1.0. Biocompatibility of TPL-MDNP was evaluated and found to be safe up to 4-fold of the dose used for MRI. A robust large-scale manufacturing process was developed with batch-to-batch consistency. A lyophilization formulation was designed to maintain the nanostructure and storage stability of the new contrast agent.
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Affiliation(s)
- Tin-Yo C. Yen
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Azhar Z. Abbasi
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Chungsheng He
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Ho-Yin Lip
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Elliya Park
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Mohammad A. Amini
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | | | - Warren Foltz
- STTARR Innovation Centre, Department of Radiation Oncology, Princess Margaret Hospital, Toronto, Ontario, M5G 2M9, Canada
| | - Andrew M. Rauth
- Departments of Medical Biophysics and Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
- Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Jeffrey Henderson
- Departments of Medical Biophysics and Radiation Oncology, University of Toronto, Toronto, Ontario, Canada
| | - Xiao Yu Wu
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
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2
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Cai ZM, Li ZZ, Zhong NN, Cao LM, Xiao Y, Li JQ, Huo FY, Liu B, Xu C, Zhao Y, Rao L, Bu LL. Revolutionizing lymph node metastasis imaging: the role of drug delivery systems and future perspectives. J Nanobiotechnology 2024; 22:135. [PMID: 38553735 PMCID: PMC10979629 DOI: 10.1186/s12951-024-02408-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/18/2024] [Indexed: 04/02/2024] Open
Abstract
The deployment of imaging examinations has evolved into a robust approach for the diagnosis of lymph node metastasis (LNM). The advancement of technology, coupled with the introduction of innovative imaging drugs, has led to the incorporation of an increasingly diverse array of imaging techniques into clinical practice. Nonetheless, conventional methods of administering imaging agents persist in presenting certain drawbacks and side effects. The employment of controlled drug delivery systems (DDSs) as a conduit for transporting imaging agents offers a promising solution to ameliorate these limitations intrinsic to metastatic lymph node (LN) imaging, thereby augmenting diagnostic precision. Within the scope of this review, we elucidate the historical context of LN imaging and encapsulate the frequently employed DDSs in conjunction with a variety of imaging techniques, specifically for metastatic LN imaging. Moreover, we engage in a discourse on the conceptualization and practical application of fusing diagnosis and treatment by employing DDSs. Finally, we venture into prospective applications of DDSs in the realm of LNM imaging and share our perspective on the potential trajectory of DDS development.
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Affiliation(s)
- Ze-Min Cai
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Zi-Zhan Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Nian-Nian Zhong
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Lei-Ming Cao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Yao Xiao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Jia-Qi Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Fang-Yi Huo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
| | - Bing Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
- Department of Oral & Maxillofacial Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, Hubei, China
| | - Chun Xu
- School of Dentistry, The University of Queensland, Brisbane, QLD, 4066, Australia
| | - Yi Zhao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China
- Department of Prosthodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Lang Rao
- Institute of Biomedical Health Technology and Engineering, Shenzhen Bay Laboratory, Shenzhen, 518132, China.
| | - Lin-Lin Bu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430072, China.
- Department of Oral & Maxillofacial Head Neck Oncology, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, Hubei, China.
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3
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Tseng CL, Zeng KL, Mellon EA, Soltys SG, Ruschin M, Lau AZ, Lutsik NS, Chan RW, Detsky J, Stewart J, Maralani PJ, Sahgal A. Evolving concepts in margin strategies and adaptive radiotherapy for glioblastoma: A new future is on the horizon. Neuro Oncol 2024; 26:S3-S16. [PMID: 38437669 PMCID: PMC10911794 DOI: 10.1093/neuonc/noad258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024] Open
Abstract
Chemoradiotherapy is the standard treatment after maximal safe resection for glioblastoma (GBM). Despite advances in molecular profiling, surgical techniques, and neuro-imaging, there have been no major breakthroughs in radiotherapy (RT) volumes in decades. Although the majority of recurrences occur within the original gross tumor volume (GTV), treatment of a clinical target volume (CTV) ranging from 1.5 to 3.0 cm beyond the GTV remains the standard of care. Over the past 15 years, the incorporation of standard and functional MRI sequences into the treatment workflow has become a routine practice with increasing adoption of MR simulators, and new integrated MR-Linac technologies allowing for daily pre-, intra- and post-treatment MR imaging. There is now unprecedented ability to understand the tumor dynamics and biology of GBM during RT, and safe CTV margin reduction is being investigated with the goal of improving the therapeutic ratio. The purpose of this review is to discuss margin strategies and the potential for adaptive RT for GBM, with a focus on the challenges and opportunities associated with both online and offline adaptive workflows. Lastly, opportunities to biologically guide adaptive RT using non-invasive imaging biomarkers and the potential to define appropriate volumes for dose modification will be discussed.
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Affiliation(s)
- Chia-Lin Tseng
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - K Liang Zeng
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
- Department of Radiation Oncology, Simcoe Muskoka Regional Cancer Program, Royal Victoria Regional Health Centre, University of Toronto, Toronto, Ontario, Canada
| | - Eric A Mellon
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Scott G Soltys
- Department of Radiation Oncology, Stanford University, Stanford, California, USA
| | - Mark Ruschin
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Angus Z Lau
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Natalia S Lutsik
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, Florida, USA
| | - Rachel W Chan
- Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Jay Detsky
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - James Stewart
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Pejman J Maralani
- Department of Medical Imaging, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Arjun Sahgal
- Department of Radiation Oncology, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
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Duraiyarasu M, Kumaran SS, Mayilmurugan R. Alkyl Chain Appended Fe(III) Catecholate Complex as a Dual-Modal T1 MRI-NIR Fluorescence Imaging Agent via Second Sphere Water Interactions. ACS Biomater Sci Eng 2023. [PMID: 37141045 DOI: 10.1021/acsbiomaterials.3c00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The C12-alkyl chain-conjugated Fe(III) catecholate complex [Fe(C12CAT)3]3-, Fe(C12CAT)3 [C12CAT = N-(3,4-dihydroxyphenethyl)dodecanamide], was synthesized and characterized, reported as a dual-modal T1-MRI and an optical imaging probe. The DFT-optimized structure of Fe(C12CAT)3 reveals a distorted octahedral coordination geometry around the high spin Fe(III) center. The formation constant (-log K) of Fe(C12CAT)3 was calculated as 45.4. The complex exhibited r1-relaxivity values of 2.31 ± 0.12 and 1.52 ± 0.06 mM-1 s-1 at 25 and 37 °C, respectively, on 1.41 T at pH 7.3 via second-sphere water interactions. The interaction of Fe(C12CAT)3 with human serum albumin showed concomitant enhancement of r1-relaxivity to 6.44 ± 0.15 mM-1 s-1. The MR phantom images are significantly brighter and directly correlate to the concentration of Fe(C12CAT)3. Adding an external fluorescent marker IR780 dye to Fe(C12CAT)3 leads to the formation of self-assembly by C12-alkyl chains. It resulted in the fluorescence quenching of the dye, and its critical aggregation concentration was calculated as 70 μM. The aggregated matrix of Fe(C12CAT)3 and IR780 dye is spherical, with an average hydrodynamic diameter of 189.5 nm. This self-assembled supramolecular system is found to be non-fluorescent and was "turn-on" under acidic pH via dissociation of aggregates. The r1-relaxivity is found to be unchanged during the matrix aggregation and disaggregation. The probe showed MRI ON and fluorescent OFF under physiological conditions and MRI ON and fluorescent ON under acidic pH. The cell viability experiments showed that the cells are 80% viable at 1 mM probe concentration. Fluorescence experiments and MR phantom images showed that Fe(C12CAT)3 is a potential dual model imaging probe to visualize the acidic pH environment of the cells.
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Affiliation(s)
- Maheshwaran Duraiyarasu
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
| | - S Senthil Kumaran
- Department of NMR, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India
| | - Ramasamy Mayilmurugan
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
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Contrast Media Adverse Drug Reactions in Highly Polluted Environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19127077. [PMID: 35742323 PMCID: PMC9223239 DOI: 10.3390/ijerph19127077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/06/2022] [Accepted: 06/08/2022] [Indexed: 01/27/2023]
Abstract
Iodinated- (ICM) and gadolinium-based (GCM) contrast media are used in radiology imaging techniques, such as computer tomography (CT) and magnetic resonance (MR), respectively. The paper aims to analyze the adverse drug reactions of ICM and GCM on different sites of the body in a highly polluted environment. We analyzed the pharmacovigilance in contrast media on the basis of reports submitted to the Regional Center for Monitoring of Adverse Drug Reactions (ADR) at the Department of Clinical Pharmacology in Wrocław. Safety profiles were compared between different ICM and GCM and at the system organ level using the proportional reporting ratio (PRR). We analyzed 124 reports of adverse reactions related to contrast agents between 2006 and 2021. Our findings revealed that ADR combinations occurred more frequently after the use of iodinated contrast agents (72.08%) than gadolinium contrast agents (27.92%). Iomeprol and Iopromide were identified as the most frequently reported media. Each medium presented a different safety profile. Skin disorders are the most common adverse drug reactions among patients using both iodine- and gadolinium-based contrast media. Gadolinium-based contrast agents are characterized by similar organ toxicity. Conversely, iodine-based contrast agents are more diverse—some of which show tissue specificity, such as Iodixanol for the gastrointestinal system or Iohexol for the respiratory tract. This study shows relatively high occurrence of respiratory tract related ADRs in Wrocław. We also prove that it is possible to choose the most optimal contrast agent for patients with specific organ site problems to omit the possible complications.
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Snoderly HT, Freshwater KA, Martinez de la Torre C, Panchal DM, Vito JN, Bennewitz MF. PEGylation of Metal Oxide Nanoparticles Modulates Neutrophil Extracellular Trap Formation. BIOSENSORS 2022; 12:bios12020123. [PMID: 35200382 PMCID: PMC8869785 DOI: 10.3390/bios12020123] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/04/2022] [Accepted: 02/13/2022] [Indexed: 06/01/2023]
Abstract
Novel metal oxide nanoparticle (NP) contrast agents may offer safety and functionality advantages over conventional gadolinium-based contrast agents (GBCAs) for cancer diagnosis by magnetic resonance imaging. However, little is known about the behavior of metal oxide NPs, or of their effect, upon coming into contact with the innate immune system. As neutrophils are the body's first line of defense, we sought to understand how manganese oxide and iron oxide NPs impact leukocyte functionality. Specifically, we evaluated whether contrast agents caused neutrophils to release web-like fibers of DNA known as neutrophil extracellular traps (NETs), which are known to enhance metastasis and thrombosis in cancer patients. Murine neutrophils were treated with GBCA, bare manganese oxide or iron oxide NPs, or poly(lactic-co-glycolic acid) (PLGA)-coated metal oxide NPs with different incorporated levels of poly(ethylene glycol) (PEG). Manganese oxide NPs elicited the highest NETosis rates and had enhanced neutrophil uptake properties compared to iron oxide NPs. Interestingly, NPs with low levels of PEGylation produced more NETs than those with higher PEGylation. Despite generating a low rate of NETosis, GBCA altered neutrophil cytokine expression more than NP treatments. This study is the first to investigate whether manganese oxide NPs and GBCAs modulate NETosis and reveals that contrast agents may have unintended off-target effects which warrant further investigation.
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Sharma D, Subramaniam G, Sharma N, Sharma P, Sharma P. Insight into Noninvasive Radiological Modalities to Detect Heart Transplant Rejection. Indian J Radiol Imaging 2022; 31:946-955. [PMID: 35136508 PMCID: PMC8817810 DOI: 10.1055/s-0041-1741098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Abstract
Purpose Patients with end-stage heart failure who remain symptomatic even with exemplary medical and device therapy are treated with heart transplantation. Multitudes of endeavor have been contrived during the last decennium in the field of noninvasive tests to rule out heart transplant rejection (HTR). In spite of having supportive literature, noninvasive imaging techniques lack acceptable documentation of clinical robustness, and endomyocardial biopsy (EMB) still remains the gold standard. The aim of this review is to shed light on the existing noninvasive radiological modalities to detect rejection among heart transplant recipients.
Methods A comprehensive search was conducted for this review article on the basis of literature available including scientific databases of PubMed, Embase, and Google Scholar, using keywords of “Heart transplantation,” “Acute allograft rejection,” “Arrhythmias,” “Echocardiography,” “Speckle tracking echocardiography,” and “Cardiac magnetic resonance imaging” from inception until September 2020.
Results After preliminary screening of the databases, details regarding existent noninvasive radiological modalities to detect HTR were gathered and compiled in this review article. Currently, deformation imaging using speckle tracking and T2 time using cardiac magnetic resonance imaging can serve as screening tools based on which further invasive investigations can be planned. Standardization of blood-based and imaging modalities as screening and possible diagnostic tools for rejection would have obvious clinical and financial benefits in the care of growing number of post heart transplant recipients in our country.
Conclusion Diagnosis of allograft rejection in heart transplant recipients through noninvasive techniques is demanding. To unravel the potential of noninvasive radiological modalities that can serve as a standard-of-care test, a prospective multicentric study randomizing noninvasive modality as first strategy versus current EMB-based gold standard of care is the need of the hour.
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Affiliation(s)
- Dhruva Sharma
- Department of Cardiothoracic and Vascular Surgery, SMS Medical College and Attached Hospitals, Jaipur, Rajasthan, India
| | - Ganapathy Subramaniam
- Department of Cardiothoracic Surgery, Institute of Heart and Lung Transplant and Mechanical Circulatory Support, MGM Healthcare, Chennai, Tamil Nadu, India
| | - Neha Sharma
- Department of Pharmacology, SMS Medical College and Attached Hospitals, Jaipur, Rajasthan, India
| | - Preksha Sharma
- Department of Anatomy, SMS Medical College and Attached Hospitals, Jaipur, Rajasthan, India
| | - Pooja Sharma
- Department of Cardiology, Eternal Heart Care Centre, Jaipur, Rajasthan, India
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Kartamihardja AAP, Ariyani W, Hanaoka H, Taketomi-Takahashi A, Koibuchi N, Tsushima Y. The Role of Ferrous Ion in the Effect of the Gadolinium-Based Contrast Agents (GBCA) on the Purkinje Cells Arborization: An In Vitro Study. Diagnostics (Basel) 2021; 11:diagnostics11122310. [PMID: 34943547 PMCID: PMC8699861 DOI: 10.3390/diagnostics11122310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/23/2021] [Accepted: 12/06/2021] [Indexed: 11/27/2022] Open
Abstract
Gadolinium deposition in the brain has been observed in areas rich in iron, such as the dentate nucleus of the cerebellum. We investigated the role of Fe2+ in the effect of gadolinium-based contrast agents (GBCA) on thyroid hormone-mediated Purkinje cell dendritogenesis in a cerebellar primary culture. The study comprises the control group, Fe2+ group, GBCA groups (gadopentetate group or gadobutrol group), and GBCA+Fe2+ groups. Immunocytochemistry was performed with an anti-calbindin-28K (anti-CaBP28k) antibody, and the nucleus was stained with 4′,6-diamidino-2-phenylindole (DAPI). The number of Purkinje cells and their arborization were evaluated with an analysis of variance with a post-hoc test. The number of Purkinje cells was similar to the control groups among all treated groups. There were no significant differences in dendrite arborization between the Fe2+ group and the control groups. The dendrite arborization was augmented in the gadopentetate and the gadobutrol groups when compared to the control group (p < 0.01, respectively). Fe2+ significantly increased the effect of gadopentetate on dendrite arborization (p < 0.01) but did not increase the effect of gadobutrol. These findings suggested that the chelate thermodynamic stability and Fe2+ may play important roles in attenuating the effect of GBCAs on the thyroid hormone-mediated dendritogenesis of Purkinje cells in in vitro settings.
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Affiliation(s)
- Achmad Adhipatria Perayabangsa Kartamihardja
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan; (A.A.P.K.); (A.T.-T.)
- Department of Nuclear Medicine and Molecular Imaging, Universitas Padjajaran, Bandung 40161, Indonesia
| | - Winda Ariyani
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan; (W.A.); (N.K.)
| | - Hirofumi Hanaoka
- Department of Bioimaging and Information Analysis, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan;
| | - Ayako Taketomi-Takahashi
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan; (A.A.P.K.); (A.T.-T.)
| | - Noriyuki Koibuchi
- Department of Integrative Physiology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan; (W.A.); (N.K.)
| | - Yoshito Tsushima
- Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan; (A.A.P.K.); (A.T.-T.)
- Division of Integrated Oncology Research, Gunma Initiative for Advanced Research, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
- Correspondence:
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Werner P, Taupitz M, Schröder L, Schuenke P. An NMR relaxometry approach for quantitative investigation of the transchelation of gadolinium ions from GBCAs to a competing macromolecular chelator. Sci Rep 2021; 11:21731. [PMID: 34741037 PMCID: PMC8571392 DOI: 10.1038/s41598-021-00974-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 10/15/2021] [Indexed: 11/12/2022] Open
Abstract
Gadolinium-based contrast agents (GBCAs) have been used in clinical Magnetic Resonance Imaging (MRI) for more than 30 years. However, there is increasing evidence that their dissociation in vivo leads to long-term depositions of gadolinium ions in the human body. In vitro experiments provide critical insights into kinetics and thermodynamic equilibria of underlying processes, which give hints towards the in vivo situation. We developed a time-resolved MRI relaxometry-based approach that exploits distinct relaxivities of Gd3+ in different molecular environments. Its applicability to quantify the transmetallation of GBCAs, the binding of Gd3+ to competing chelators, and the combined transchelation process is demonstrated. Exemplarily, the approach is applied to investigate two representative GBCAs in the presence of Zn2+ and heparin, which is used as a model for a macromolecular and physiologically occurring chelator. Opposing indirect impacts of heparin on increasing the kinetic stability but reducing the thermodynamic stability of GBCAs are observed. The relaxivity of resulting Gd-heparin complexes is shown to be essentially increased compared to that of the parent GBCAs so that they might be one explanation for observed long-term MRI signal enhancement in vivo. In forthcoming studies, the presented method could help to identify the most potent Gd-complexing macromolecular species.
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Affiliation(s)
- Patrick Werner
- Molecular Imaging, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
- Department of Radiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Matthias Taupitz
- Department of Radiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Leif Schröder
- Molecular Imaging, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany
- Division of Translational Molecular Imaging, Deutsches Krebsforschungszentrum (DKFZ), Heidelberg, Germany
| | - Patrick Schuenke
- Molecular Imaging, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), Berlin, Germany.
- Physikalisch-Technische Bundesanstalt (PTB), Braunschweig, Berlin, Germany.
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Ordak M, Sloniewicz N, Nasierowski T, Muszynska E, Bujalska-Zadrozny M. Manganese concentration in patients with encephalopathy following ephedrone use: a narrative review and analysis of case reports. Clin Toxicol (Phila) 2021; 60:10-17. [PMID: 34521308 DOI: 10.1080/15563650.2021.1973488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Numerous case reports describe manganese encephalopathy in patients using ephedrone (methcathinone). The aim of this narrative review of case reports was to relate manganese ion concentrations in peripheral blood to the reported neurological deficits. METHODS International databases, including Thomson (Web of Knowledge), PubMed/Medline, Science Direct, Scopus and Google Scholar were searched for literature items published between 2007 and 2020, in which the authors measured the manganese concentration in patients taking ephedrone. RESULTS We identified 39 patients in two case series comprising of twenty-three and twelve patients, respectively, and four case reports meeting inclusion criteria. The study showed that 93% of them had elevated blood manganese concentration in relation to the accepted norm (>219 nmol/L), and the median was 364 nmol/L. The median duration of ephedrone use in individual groups of patients was approximately 48 months, and it did not show a relationship with the manganese concentration in the blood. A greater percentage of the people with manganese concentration higher than 250 nmol/L exhibited more severe gait, speech and handwriting disorders. The median duration of ephedrone withdrawal was a month in the group of people with the highest level of manganese ions (>500 nmol/L). CONCLUSION Manganese concentrations did not vary with the duration of ephedrone use.
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Affiliation(s)
- Michal Ordak
- Department of Pharmacodynamics, Centre for Preclinical, Research and Technology (CePT), Medical University of Warsaw, Warsaw, Poland
| | - Natalia Sloniewicz
- Department of Pharmacodynamics, Centre for Preclinical, Research and Technology (CePT), Medical University of Warsaw, Warsaw, Poland
| | | | - Elzbieta Muszynska
- Department of Medical Biology, Medical University of Bialystok, Bialystok, Poland
| | - Magdalena Bujalska-Zadrozny
- Department of Pharmacodynamics, Centre for Preclinical, Research and Technology (CePT), Medical University of Warsaw, Warsaw, Poland
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Tran HP, Jiang Y, Nguyen PH, Kim JJ, Yang SG. Retinoic acid-conjugated chitosan/manganese porphyrin ionic-complex nanoparticles for improved T 1 contrast MR imaging of hepatic fibrosis. J Biomed Mater Res B Appl Biomater 2021; 110:382-391. [PMID: 34309195 DOI: 10.1002/jbm.b.34914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/21/2021] [Accepted: 06/27/2021] [Indexed: 11/09/2022]
Abstract
Noninvasive and precise diagnosis of hepatic fibrosis is very important for the preventive therapeutic regimen of hepatic cirrhosis and cancer. In this study, we fabricated T1 contrast Mn-porphyrin (MnTPPS4 )/retinoic acid-chitosan ionic-complex nanoparticles (MRC NPs). The functional properties of MRC NPs were evaluated via transmission electron microscopy (TEM) imaging, release study, cytotoxicity assay, hepatocyte-specific uptake assay, and magnetic resonance (MR) imaging study. TEM images confirmed the typical structure of an ionic-complex NPs with around 100-200 nm of diameter. MnTPPS4 is released from MRC NPs for up to 24 hr in controlled pattern which implies that more reliable and convenient hepatic MR imaging is possible using of MRC NPs in clinical practice. Hepatocytes uptake assay proved retinoic acid-specific targeting of MRC NPs. The same results were observed in animal pharmacokinetic studies. In vitro MR phantom study, MRC NPs showed an increased T1 relaxivity (r1 = 6.772 mM-1 s-1 ) in comparison with 3.242 mM-1 s-1 of MnTPPS4 . The result was confirmed again in vivo MR imaging studies. Taken together, MRC NPs displayed a potential for noninvasive diagnostic T1 MR imaging of hepatic fibrosis with improved target specificity and prolonged MR imaging time window.
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Affiliation(s)
- Hoa Phuong Tran
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea
| | - Yixin Jiang
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea
| | - Phuong Hong Nguyen
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea.,Institute of Research and Development, Duy Tan University, Da Nang, Vietnam
| | - Jung Joo Kim
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea
| | - Su-Geun Yang
- Department of Biomedical Science, BK21 FOUR Program in Biomedical Science and Engineering, Inha University College of Medicine, Incheon, South Korea.,Inha Institute of Aerospace Medicine, Inha University College of Medicine, Incheon, South Korea
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12
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Chen K, Li P, Zhu C, Xia Z, Xia Q, Zhong L, Xiao B, Cheng T, Wu C, Shen C, Zhang X, Zhu J. Mn(II) Complex of Lipophilic Group-Modified Ethylenediaminetetraacetic Acid (EDTA) as a New Hepatobiliary MRI Contrast Agent. J Med Chem 2021; 64:9182-9192. [PMID: 34152137 DOI: 10.1021/acs.jmedchem.1c00393] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Liver-specific contrast agents (CAs) can improve the Magnetic resonance imaging (MRI) detection of focal and diffuse liver lesions by increasing the lesion-to-liver contrast. A novel Mn(II) complex, Mn-BnO-TyrEDTA, with a lipophilic group-modified ethylenediaminetetraacetic acid (EDTA) structure as a ligand to regulate its behavior in vivo, is superior to Gd-EOB-DTPA in terms of a liver-specific MRI contrast agent. An MRI study on mice demonstrated that Mn-BnO-TyrEDTA can be rapidly taken up by hepatocytes with a combination of hepatobiliary and renal clearance pathways. Bromosulfophthalein (BSP) inhibition imaging, biodistribution, and cellular uptake studies confirmed that the mechanism of hepatic targeting of Mn-BnO-TyrEDTA is the hepatic uptake of the amphiphilic anion contrast agent mediated by organic anion transporting polypeptides (OATPs) expressed by functional hepatocytes.
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Affiliation(s)
| | - Pan Li
- Department of Radiotherapy, Sichuan Cancer Hospital & Institute, Chengdu 610041, China
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13
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Stinnett G, Taheri N, Villanova J, Bohloul A, Guo X, Esposito EP, Xiao Z, Stueber D, Avendano C, Decuzzi P, Pautler RG, Colvin VL. 2D Gadolinium Oxide Nanoplates as T 1 Magnetic Resonance Imaging Contrast Agents. Adv Healthc Mater 2021; 10:e2001780. [PMID: 33882196 DOI: 10.1002/adhm.202001780] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/18/2021] [Indexed: 12/21/2022]
Abstract
Millions of people a year receive magnetic resonance imaging (MRI) contrast agents for the diagnosis of conditions as diverse as fatty liver disease and cancer. Gadolinium chelates, which provide preferred T1 contrast, are the current standard but face an uncertain future due to increasing concerns about their nephrogenic toxicity as well as poor performance in high-field MRI scanners. Gadolinium-containing nanocrystals are interesting alternatives as they bypass the kidneys and can offer the possibility of both intracellular accumulation and active targeting. Nanocrystal contrast performance is notably limited, however, as their organic coatings block water from close interactions with surface Gadoliniums. Here, these steric barriers to water exchange are minimized through shape engineering of plate-like nanocrystals that possess accessible Gadoliniums at their edges. Sulfonated surface polymers promote second-sphere relaxation processes that contribute remarkable contrast even at the highest fields (r1 = 32.6 × 10-3 m Gd-1 s-1 at 9.4 T). These noncytotoxic materials release no detectable free Gadolinium even under mild acidic conditions. They preferentially accumulate in the liver of mice with a circulation half-life 50% longer than commercial agents. These features allow these T1 MRI contrast agents to be applied for the first time to the ex vivo detection of nonalcoholic fatty liver disease in mice.
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Affiliation(s)
- Gary Stinnett
- Department of Molecular Physiology and Biophysics Baylor College of Medicine Houston TX 77030 USA
| | - Nasim Taheri
- Departments of Chemistry and Chemical and Biomolecular Engineering Rice University Houston TX 77005 USA
| | - Jake Villanova
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Arash Bohloul
- Departments of Chemistry and Chemical and Biomolecular Engineering Rice University Houston TX 77005 USA
| | - Xiaoting Guo
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Edward P. Esposito
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Zhen Xiao
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Deanna Stueber
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
| | - Carolina Avendano
- Departments of Chemistry and Chemical and Biomolecular Engineering Rice University Houston TX 77005 USA
| | - Paolo Decuzzi
- Department of Translational Imaging and Department of Nanomedicine The Methodist Hospital Research Institute Houston TX 77030 USA
- Laboratory of Nanotechnology for Precision Medicine Fondazione Istituto Italiano di Tecnologia Genoa 16163 Italy
| | - Robia G. Pautler
- Department of Molecular Physiology and Biophysics Baylor College of Medicine Houston TX 77030 USA
| | - Vicki L. Colvin
- Departments of Chemistry and Engineering Brown University Providence RI 02912 USA
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14
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Maziero D, Straza MW, Ford JC, Bovi JA, Diwanji T, Stoyanova R, Paulson ES, Mellon EA. MR-Guided Radiotherapy for Brain and Spine Tumors. Front Oncol 2021; 11:626100. [PMID: 33763361 PMCID: PMC7982530 DOI: 10.3389/fonc.2021.626100] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 02/12/2021] [Indexed: 12/19/2022] Open
Abstract
MRI is the standard modality to assess anatomy and response to treatment in brain and spine tumors given its superb anatomic soft tissue contrast (e.g., T1 and T2) and numerous additional intrinsic contrast mechanisms that can be used to investigate physiology (e.g., diffusion, perfusion, spectroscopy). As such, hybrid MRI and radiotherapy (RT) devices hold unique promise for Magnetic Resonance guided Radiation Therapy (MRgRT). In the brain, MRgRT provides daily visualizations of evolving tumors that are not seen with cone beam CT guidance and cannot be fully characterized with occasional standalone MRI scans. Significant evolving anatomic changes during radiotherapy can be observed in patients with glioblastoma during the 6-week fractionated MRIgRT course. In this review, a case of rapidly changing symptomatic tumor is demonstrated for possible therapy adaptation. For stereotactic body RT of the spine, MRgRT acquires clear isotropic images of tumor in relation to spinal cord, cerebral spinal fluid, and nearby moving organs at risk such as bowel. This visualization allows for setup reassurance and the possibility of adaptive radiotherapy based on anatomy in difficult cases. A review of the literature for MR relaxometry, diffusion, perfusion, and spectroscopy during RT is also presented. These techniques are known to correlate with physiologic changes in the tumor such as cellularity, necrosis, and metabolism, and serve as early biomarkers of chemotherapy and RT response correlating with patient survival. While physiologic tumor investigations during RT have been limited by the feasibility and cost of obtaining frequent standalone MRIs, MRIgRT systems have enabled daily and widespread physiologic measurements. We demonstrate an example case of a poorly responding tumor on the 0.35 T MRIgRT system with relaxometry and diffusion measured several times per week. Future studies must elucidate which changes in MR-based physiologic metrics and at which timepoints best predict patient outcomes. This will lead to early treatment intensification for tumors identified to have the worst physiologic responses during RT in efforts to improve glioblastoma survival.
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Affiliation(s)
- Danilo Maziero
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Michael W Straza
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - John C Ford
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Joseph A Bovi
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Tejan Diwanji
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Radka Stoyanova
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Eric S Paulson
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI, United States
| | - Eric A Mellon
- Department of Radiation Oncology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL, United States
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15
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Chen CW, Tseng YH, Lin CC, Kao CC, Wong MY, Ting H, Huang YK. Aortic dissection assessment by 4D phase-contrast MRI with hemodynamic parameters: the impact of stent type. Quant Imaging Med Surg 2021; 11:490-501. [PMID: 33532250 DOI: 10.21037/qims-20-670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background To explore the diagnostic performance of 4-dimensional phase-contrast magnetic resonance imaging (4D PC-MRI) in evaluating aortic dissection in different clinical scenarios. Methods The study group comprised 32 patients with a known aortic dissection who each underwent computed tomography angiography (CTA), and then 4D PC-MRI with a 1.5-T MR scanner. The 4D PC-MRI images were compared with the CTA images to evaluate the aortic size, branch identification, and iliac and femoral arterial access. Results The patients were divided into three groups: (I) patients diagnosed with Type B aortic dissection but did not undergo intervention (n=8); (II) patients with residual aortic dissection after open repair of Type A dissection (n=7); (III) patients who underwent endovascular aortic repair with or without open surgery (n=17). Without radiation or contrast media injection, 4D PC-MRI provided similar aortic images for patients in Group 1 and most of those in Group 2. In Group 3, stainless steel stents affected image quality in three patients. High-quality 4D PC-MRI images were obtained for the remaining 14 patients in Group 3, who had non-stainless steel stents, and provided major aortic information comparable to that provided by CTA with contrast media. The hemodynamic parameters of true and false lumens were evaluated between three patients with Type B aortic dissections and three patients who underwent thoracic endovascular aortic repair for their aortic dissection. The stroke volume was higher in the true lumen of the patients with stent-grafts than in the patients with Type B aortic dissection without intervention. The regurgitant fraction, an indicator of nonlaminar flow, was higher in the false lumens than in the true lumens. All 32 patients in this study tolerated 4D PC-MRI without adverse events. Conclusions 4D PC-MRI is radiation- and contrast media-free option for imaging aortic dissection. It not only provided images comparable in quality to those obtained with CTA but also provided information on hemodynamic parameters, including endoleak detection after thoracic endovascular aortic repair. 4D PC-MRI was safe and accurate in evaluating chronic Type B aortic dissection and residual aortic dissection after surgery for acute Type A aortic dissection. Therefore, it could be a potential tool in treating pathology in aortic dissection, especially for patients with malperfusion syndrome of visceral vessels and in young patients with renal function impairment. However, certain endograft materials, especially stainless steel, may prevent the further application of 4D PC-MRI and should be avoided.
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Affiliation(s)
- Chien-Wei Chen
- Institute of Medicine, Chung Shan Medical University, Taichung.,Department of Diagnostic Radiology, Chang Gung Memorial Hospital Chiayi Branch, College of Medicine, Chang Gung University, Chiayi and Taoyuan
| | - Yuan-Hsi Tseng
- Division of Thoracic and Cardiovascular Surgery, Chia Yi Chang Gung Memorial Hospital, Chiayi.,Chang Gung University, College of Medicine, Taoyuan
| | - Chien-Chao Lin
- Division of Thoracic and Cardiovascular Surgery, Chia Yi Chang Gung Memorial Hospital, Chiayi.,Chang Gung University, College of Medicine, Taoyuan
| | - Chih-Chen Kao
- Division of Thoracic and Cardiovascular Surgery, Chia Yi Chang Gung Memorial Hospital, Chiayi.,Chang Gung University, College of Medicine, Taoyuan
| | - Min Yi Wong
- Division of Thoracic and Cardiovascular Surgery, Chia Yi Chang Gung Memorial Hospital, Chiayi
| | - Hua Ting
- Institute of Medicine, Chung Shan Medical University, Taichung
| | - Yao-Kuang Huang
- Division of Thoracic and Cardiovascular Surgery, Chia Yi Chang Gung Memorial Hospital, Chiayi.,Chang Gung University, College of Medicine, Taoyuan
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16
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Marasini R, Rayamajhi S, Moreno-Sanchez A, Aryal S. Iron(iii) chelated paramagnetic polymeric nanoparticle formulation as a next-generation T1-weighted MRI contrast agent. RSC Adv 2021; 11:32216-32226. [PMID: 35495502 PMCID: PMC9041822 DOI: 10.1039/d1ra05544e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/18/2021] [Indexed: 12/18/2022] Open
Abstract
In pursuit of safer alternatives to Gd-based MRI contrast agents due to its toxicity and organ deposition, herein, we developed a safer and efficient clinically relevant iron(iii) chelated polymeric nanoparticle as a T1-weighted MRI contrast agent.
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Affiliation(s)
- Ramesh Marasini
- Department of Chemistry, College of Arts and Sciences, Kansas State University, Manhattan, KS 66506, USA
- Nanotechnology Innovation Center of Kansas State (NICKS), Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Sagar Rayamajhi
- Department of Chemistry, College of Arts and Sciences, Kansas State University, Manhattan, KS 66506, USA
- Nanotechnology Innovation Center of Kansas State (NICKS), Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Anthony Moreno-Sanchez
- Department of Chemistry, College of Arts and Sciences, Kansas State University, Manhattan, KS 66506, USA
- Nanotechnology Innovation Center of Kansas State (NICKS), Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Santosh Aryal
- Department of Pharmaceutical Sciences and Health Outcomes, The Ben and Maytee Fisch College of Pharmacy, The University of Texas, Tyler, TX 75799, USA
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17
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Webster AM, Peacock AFA. De novo designed coiled coils as scaffolds for lanthanides, including novel imaging agents with a twist. Chem Commun (Camb) 2021; 57:6851-6862. [DOI: 10.1039/d1cc02013g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The design of artificial miniature lanthanide proteins, provide an opportunity to access new functional metalloproteins as well as insight into native lanthanide biochemistry.
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18
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Neburkova J, Rulseh AM, Chang SLY, Raabova H, Vejpravova J, Dracinsky M, Tarabek J, Kotek J, Pingle M, Majer P, Vymazal J, Cigler P. Formation of gadolinium-ferritin from clinical magnetic resonance contrast agents. NANOSCALE ADVANCES 2020; 2:5567-5571. [PMID: 36133872 PMCID: PMC9417687 DOI: 10.1039/c9na00567f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 08/29/2020] [Indexed: 05/03/2023]
Abstract
Gadolinium deposition in the brain following administration of gadolinium-based contrast agents (GBCAs) has led to health concerns. We show that some clinical GBCAs form Gd3+-ferritin nanoparticles at (sub)nanomolar concentrations of Gd3+ under physiological conditions. We describe their structure at atomic resolution and discuss potential relevance for clinical MRI.
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Affiliation(s)
- Jitka Neburkova
- Institute of Organic Chemistry and Biochemistry of the CAS Flemingovo nam. 2 166 10 Prague Czechia
| | - Aaron M Rulseh
- Department of Radiology, Na Homolce Hospital Roentgenova 2 150 30 Prague Czechia
| | - Shery L Y Chang
- Electron Microscopy Unit, Mark Wainwright Analytical Centre, and School of Materials Science and Engineering, University of New South Wales Sydney NSW 2052 Australia
| | - Helena Raabova
- Institute of Organic Chemistry and Biochemistry of the CAS Flemingovo nam. 2 166 10 Prague Czechia
| | - Jana Vejpravova
- Department of Inorganic Chemistry, Faculty of Science, Charles University Hlavova 8 128 43 Prague 2 Czechia
- Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University Ke Karlovu 5 121 16 Prague 2 Czechia
| | - Martin Dracinsky
- Institute of Organic Chemistry and Biochemistry of the CAS Flemingovo nam. 2 166 10 Prague Czechia
| | - Jan Tarabek
- Institute of Organic Chemistry and Biochemistry of the CAS Flemingovo nam. 2 166 10 Prague Czechia
| | - Jan Kotek
- Department of Inorganic Chemistry, Faculty of Science, Charles University Hlavova 8 128 43 Prague 2 Czechia
| | - Mohan Pingle
- Department of Radiology, Na Homolce Hospital Roentgenova 2 150 30 Prague Czechia
| | - Pavel Majer
- Institute of Organic Chemistry and Biochemistry of the CAS Flemingovo nam. 2 166 10 Prague Czechia
| | - Josef Vymazal
- Department of Radiology, Na Homolce Hospital Roentgenova 2 150 30 Prague Czechia
| | - Petr Cigler
- Institute of Organic Chemistry and Biochemistry of the CAS Flemingovo nam. 2 166 10 Prague Czechia
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19
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Caspani S, Magalhães R, Araújo JP, Sousa CT. Magnetic Nanomaterials as Contrast Agents for MRI. MATERIALS 2020; 13:ma13112586. [PMID: 32517085 PMCID: PMC7321635 DOI: 10.3390/ma13112586] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/18/2020] [Accepted: 05/29/2020] [Indexed: 01/17/2023]
Abstract
Magnetic Resonance Imaging (MRI) is a powerful, noninvasive and nondestructive technique, capable of providing three-dimensional (3D) images of living organisms. The use of magnetic contrast agents has allowed clinical researchers and analysts to significantly increase the sensitivity and specificity of MRI, since these agents change the intrinsic properties of the tissues within a living organism, increasing the information present in the images. Advances in nanotechnology and materials science, as well as the research of new magnetic effects, have been the driving forces that are propelling forward the use of magnetic nanostructures as promising alternatives to commercial contrast agents used in MRI. This review discusses the principles associated with the use of contrast agents in MRI, as well as the most recent reports focused on nanostructured contrast agents. The potential applications of gadolinium- (Gd) and manganese- (Mn) based nanomaterials and iron oxide nanoparticles in this imaging technique are discussed as well, from their magnetic behavior to the commonly used materials and nanoarchitectures. Additionally, recent efforts to develop new types of contrast agents based on synthetic antiferromagnetic and high aspect ratio nanostructures are also addressed. Furthermore, the application of these materials in theragnosis, either as contrast agents and controlled drug release systems, contrast agents and thermal therapy materials or contrast agents and radiosensitizers, is also presented.
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20
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Shi S, Vissapragada R, Abi Jaoude J, Huang C, Mittal A, Liu E, Zhong J, Kumar V. Evolving role of biomaterials in diagnostic and therapeutic radiation oncology. Bioact Mater 2020; 5:233-240. [PMID: 32123777 PMCID: PMC7036731 DOI: 10.1016/j.bioactmat.2020.01.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 01/24/2020] [Accepted: 01/30/2020] [Indexed: 01/11/2023] Open
Abstract
Radiation therapy to treat cancer has evolved significantly since the discovery of x-rays. Yet, radiation therapy still has room for improvement in reducing side effects and improving control of cancer. Safer and more effective delivery of radiation has led us to novel techniques and use of biomaterials. Biomaterials in combination with radiation and chemotherapy have started to appear in pre-clinical explorations and clinical applications, with many more on the horizon. Biomaterials have revolutionized the field of diagnostic imaging, and now are being cultivated into the field of theranostics, combination therapy, and tissue protection. This review summarizes recent development of biomaterials in radiation therapy in several application areas.
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Affiliation(s)
- Siyu Shi
- Department of Medicine, Stanford School of Medicine, Stanford, CA, 94305, USA
| | - Ravi Vissapragada
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | | | - Caroline Huang
- Department of Medicine, Stanford School of Medicine, Stanford, CA, 94305, USA
| | - Anmol Mittal
- Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ, 07102, USA
| | - Elisa Liu
- Department of Medicine, Stanford School of Medicine, Stanford, CA, 94305, USA
| | - Jim Zhong
- Department of Radiation Oncology, Emory University, Atlanta, GA, 30332, USA
| | - Vivek Kumar
- Department of Restorative Dentistry, Rutgers School of Dental Medicine, Newark, NJ, 07103, USA
- Department of Chemical and Materials Engineering, New Jersey Institute of Technology, 07102, USA
- Department of Biomedical Engineering, New Jersey Institute of Technology, 07102, USA
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21
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Patil R, Galstyan A, Grodzinski ZB, Shatalova ES, Wagner S, Israel LL, Ding H, Black KL, Ljubimova JY, Holler E. Single- and Multi-Arm Gadolinium MRI Contrast Agents for Targeted Imaging of Glioblastoma. Int J Nanomedicine 2020; 15:3057-3070. [PMID: 32431501 PMCID: PMC7200230 DOI: 10.2147/ijn.s238265] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/25/2020] [Indexed: 12/22/2022] Open
Abstract
Background Position of gadolinium atom(s) plays a key role in contrast enhancement of gadolinium-based contrast agents. To gain a better understanding of effects of distance of gadolinium in relation to the nanoconjugate platform, we designed and synthesized single- and multi-arm (“star”) gadolinium conjugates equipped with antibody and peptides for targeting. The contrast agents were studied for their tumor imaging performance in a glioma mouse model. Materials and Methods Antibody- and peptide-targeted nano contrast agents (NCAs) were synthesized using polymalic acid platforms of different sizes. Gadolinium-DOTA and intermediates were attached as amides and targeting agents such as antibodies and peptides as thioethers. For in vivo experiments, we used human U87MG xenografts as glioma models. Magnetic resonance imaging (MRI) was performed on a Bruker BioSpec 94/20USR 9.4 T small-animal scanner. Delivery of contrast agents across the blood–brain barrier was studied by fluorescent microscopy. Results All contrast agents accumulated into tumor and showed composition-dependent imaging performance. Peptide-targeted mini-NCAs had hydrodynamic diameters in the range 5.2–9.4 nm and antibody-targeted NCAs had diameters in the range 15.8–20.5 nm. Zeta potentials were in the range of –5.4–−8.2 mV and −4.6–−8.8 mV, respectively. NCAs showed superior relaxivities compared to MultiHance at 9.4 T. The signal enhancement indicated maximum accumulation in tumor 30–60 minutes after intravenous injection of the mouse tail vein. Only targeted NCAs were retained in tumor for up to 3 hours and displayed contrast enhancement. Conclusion The novel targeted NCAs with star-PEG features displayed improved relaxivity and greater contrast compared with commercial MultiHance contrast agent. The enhancement by mini-NCAs showed clearance of tumor contrast after 3 hours providing a suitable time window for tumor diagnosis in clinics. The technology provides a great tool with the promise of differential MRI diagnosis of brain tumors.
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Affiliation(s)
- Rameshwar Patil
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Anna Galstyan
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Zachary B Grodzinski
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ekaterina S Shatalova
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Shawn Wagner
- Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Liron L Israel
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Hui Ding
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Keith L Black
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Julia Y Ljubimova
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA.,Oncology Translational Program, Samuel Oschin Comprehensive Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Eggehard Holler
- Nanomedicine Research Center, Department of Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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22
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An Efficient T 1 Contrast Agent for Labeling and Tracking Human Embryonic Stem Cells on MRI. CONTRAST MEDIA & MOLECULAR IMAGING 2019; 2019:3475786. [PMID: 31316306 PMCID: PMC6604499 DOI: 10.1155/2019/3475786] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 04/30/2019] [Indexed: 02/06/2023]
Abstract
Noninvasive cell tracking in vivo has the potential to advance stem cell-based therapies into the clinic. Magnetic resonance imaging (MRI) provides an excellent image-guidance platform; however, existing MR cell labeling agents are fraught with limited specificity. To address this unmet need, we developed a highly efficient manganese porphyrin contrast agent, MnEtP, using a two-step synthesis. In vitro MRI at 3 Tesla on human embryonic stem cells (hESCs) demonstrated high labeling efficiency at a very low dose of 10 µM MnEtP, resulting in a four-fold lower T1 relaxation time. This extraordinarily low dose is ideal for labeling large cell numbers required for large animals and humans. Cell viability and differentiation capacity were unaffected. Cellular manganese quantification corroborated MRI findings, and the agent localized primarily on the cell membrane. In vivo MRI of transplanted hESCs in a rat demonstrated excellent sensitivity and specificity of MnEtP for noninvasive stem cell tracking.
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Ackermans N, Taylor C, Tam R, Carruthers R, Kolind S, Kang H, Freedman MS, Li DK, Traboulsee AL. Effect of different doses of gadolinium contrast agent on clinical outcomes in MS. Mult Scler J Exp Transl Clin 2019; 5:2055217318823796. [PMID: 30800415 PMCID: PMC6378456 DOI: 10.1177/2055217318823796] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 12/10/2018] [Accepted: 12/11/2018] [Indexed: 02/04/2023] Open
Abstract
Objective The objective of this paper is to evaluate potential dose-dependent adverse effects of gadolinium-based contrast agents (GBCAs) on MS progression. Methods Outcomes from a cohort of 612 secondary progressive MS (SPMS) patients, enrolled in a two-year, placebo-controlled (negative) trial assessing the efficacy of MBP8298, were acquired. Patients received one to four (infrequent cohort; IFR) or 5–11 (frequent cohort; FR) GBCA injections between week 4 and week 104. The primary outcome was the change in Expanded Disability Status Scale (EDSS) and time to confirmed EDSS progression. Secondary outcomes included the changes in the Multiple Sclerosis Functional Composite (MSFC), Timed 25-Foot Walk (T25FW), 9-Hole-Peg Test (9HPT), and Paced Auditory Serial Addition Test (PASAT) from baseline to week 104. Results The 512 IFR and 100 FR participants showed no differences in baseline demographics or disease history. The mean change from baseline to week 104 in EDSS was +0.21 (IFR) and +0.13 (FR); MSFC –0.38 (IFR) and –0.14 (FR); T25FW +1.28 (IFR) and +0.55 (FR); 9HPT –0.06 (IFR) and –0.08 (FR); and PASAT +0.22 (IFR) and +0.20 (FR). The FR to IFR progression hazard ratio equaled 0.68 (p = 0.09). There were no significant differences in any of the outcomes between the two cohorts. Conclusion There were no differences in the disability progression measures between the two cohorts, indicating that gadolinium does not result in greater clinical worsening in SPMS after a two-year period.
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Affiliation(s)
- Nathalie Ackermans
- University of British Columbia, Department of Medicine (Neurology), Canada
| | - Carolyn Taylor
- University of British Columbia, Department of Statistics, Canada
| | - Roger Tam
- University of British Columbia, Department of Radiology, Canada
| | - Robert Carruthers
- University of British Columbia, Department of Medicine (Neurology), Canada
| | - Shannon Kolind
- University of British Columbia, Department of Medicine (Neurology), Canada
| | - Heejun Kang
- University of British Columbia, Department of Radiology, Canada
| | - Mark S Freedman
- University of Ottawa and the Ottawa Hospital Research Institute, Canada
| | - David Kb Li
- University of British Columbia, Department of Medicine (Neurology), Canada.,University of British Columbia, Department of Radiology, Canada
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Gibby W, Parish W, Merrill RM, Fernandez D, Anderson CR, Merchel E, Parr R. The use of a binary chelate formulation: Could gadolinium based linear contrast agents be rescued by the addition of zinc selective chelates? Magn Reson Imaging 2019; 58:76-81. [PMID: 30639754 DOI: 10.1016/j.mri.2019.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/31/2018] [Accepted: 01/02/2019] [Indexed: 12/20/2022]
Abstract
Tissue and bone retention of gadolinium based contrast agents (GBCAs) has become a clinical concern because of the potential short and long term toxic effects of free gadolinium. This is a critical problem for most open-chain agents that more readily transmetallate in vivo, in comparison to macrocyclic compounds. Gadolinium diethylene tri-aminepentaacetic acid bis-glucosamide (Gd-DTPA-BIGA) is an experimental, open-chain contrast agent which has a significantly increased relaxivity coefficient in comparison to other GBCAs. This results in greater signal intensity and improved contrast enhancement. These superior imaging qualities initiated a search for a solution to the transmetallation of this agent. Plasma zinc is a well-known GBCA transmettalation agent. Since the base chelate of Gadodiamide (Gd-DPTA-Bis-Methylamide or Omniscan), DTPA-Bis-Methylamide (DTPA-BMA), readily transmettalates with and binds serum zinc, we hypothesized that a plasma "zinc sink," may significantly reduce transmetallation of linear agents. 5% DTPA-BMA was added to a formulation of Gd-DTPA-BIGA, which was tested against the original formulation of Gd-DTPA-BIGA with 0.2% of the base chelate DTPA-BIGA. These formulations, including gadodiamide, were labeled with 153GdCl3 followed by infusion into cohorts of Sprague Dawley rats which were sacrificed at 1, 30 and 60 days. Internal organs were harvested, along with blood, skin and femur, and analyzed for residual gadolinium. A subset of tissues were also interrogated with ICP-MS. Labeled Gadodiamide and saline where used as controls. Conclusion: The addition of 5% DTPA-BMA, as a zinc binding agent, reduced the transmetallation of the linear agent Gd-DTPA-BIGA, in comparison to its original formulation supplemented with 0.2% BIGA. This result indicates that supplementing linear GBCAs with ancillary chelates may hold promise for reducing, or eliminating the biological archiving of gadolinium in tissues. In addition, this paper provides valuable animal data on the long term retention of gadolinium from linear based contrast agents.
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Affiliation(s)
- Wendell Gibby
- Magnetic Research Inc., 3152 N University Ave #50, Provo, UT 84604, United States of America; University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, United States of America.
| | - Wes Parish
- Magnetic Research Inc., 3152 N University Ave #50, Provo, UT 84604, United States of America
| | - Ray M Merrill
- Department of Health Science, Brigham Young University, College of Life Sciences, Life Sciences Building (LSB), Provo, UT 84602, United States of America.
| | - Diego Fernandez
- Department of Geology and Geophysics, University of Utah, Frederick Albert Sutton Building, 115 S, 1460 E #383, Salt Lake City, UT 84112, United States of America.
| | - Christopher R Anderson
- Department of Geology and Geophysics, University of Utah, Frederick Albert Sutton Building, 115 S, 1460 E #383, Salt Lake City, UT 84112, United States of America.
| | - Eric Merchel
- Department of Geology and Geophysics, University of Utah, Frederick Albert Sutton Building, 115 S, 1460 E #383, Salt Lake City, UT 84112, United States of America
| | - Ryan Parr
- Magnetic Research Inc., 3152 N University Ave #50, Provo, UT 84604, United States of America.
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Reeßing F, Stuart MCA, Samplonius DF, Dierckx RAJO, Feringa BL, Helfrich W, Szymanski W. A light-responsive liposomal agent for MRI contrast enhancement and monitoring of cargo delivery. Chem Commun (Camb) 2019; 55:10784-10787. [DOI: 10.1039/c9cc05516a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A liposomal MRI-probe changing relaxivity and releasing cargo upon light irradiation was developed for diagnostics and monitoring of drug delivery.
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Affiliation(s)
- F. Reeßing
- Department of Radiology
- Medical Imaging Center
- University of Groningen
- University Medical Center Groningen
- 9713GZ Groningen
| | - M. C. A. Stuart
- Stratingh Institute for Chemistry
- University of Groningen
- 9747 AG Groningen
- The Netherlands
| | - D. F. Samplonius
- Translational Surgical Oncology
- Department of Surgery
- University of Groningen
- University Medical Center Groningen
- 9713GZ Groningen
| | - R. A. J. O. Dierckx
- Department of Radiology
- Medical Imaging Center
- University of Groningen
- University Medical Center Groningen
- 9713GZ Groningen
| | - B. L. Feringa
- Department of Radiology
- Medical Imaging Center
- University of Groningen
- University Medical Center Groningen
- 9713GZ Groningen
| | - W. Helfrich
- Translational Surgical Oncology
- Department of Surgery
- University of Groningen
- University Medical Center Groningen
- 9713GZ Groningen
| | - W. Szymanski
- Department of Radiology
- Medical Imaging Center
- University of Groningen
- University Medical Center Groningen
- 9713GZ Groningen
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Reeβing F, Szymanski W. Following nanomedicine activation with magnetic resonance imaging: why, how, and what's next? Curr Opin Biotechnol 2018; 58:9-18. [PMID: 30390536 DOI: 10.1016/j.copbio.2018.10.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 10/14/2018] [Indexed: 02/08/2023]
Abstract
Nanomedicines, such as liposomal formulations, play an important role in cancer therapy. To support their development, medical imaging modalities are employed for following the drug delivery. Encapsulation of MRI contrast agents, which change their relaxivity upon co-release with the drug, is a promising strategy for monitoring both the biodistribution and payload release from a nanocarrier. This approach is successfully applied in preclinical settings to image the activation of liposomes responsive to heat, pH changes or sonication. Recent advances include combination with different treatments and the implementation of chemical exchange saturation transfer imaging to gain spectral resolution over different contrast agents. However, this field still faces challenges, such as matching the pharmacokinetic profiles of the contrast agents and the liberated drugs.
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Affiliation(s)
- Friederike Reeβing
- University Medical Center Groningen, Department of Radiology, University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands; Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Wiktor Szymanski
- University Medical Center Groningen, Department of Radiology, University of Groningen, Hanzeplein 1, 9713 GZ, Groningen, The Netherlands; Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty of Science and Engineering, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands.
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Xiang LJ, Zhu XJ, Zhang HH, Yang L, Deng KX, Liu Y, Ye MS, Hu L, Yang XY, Zhou HP. A water-soluble, upconverting Sr 2Yb 0.3Gd 0.7F 7:Er 3+/Tm 3+@PSI oAm bio-probe for in vivo trimodality imaging. NANOSCALE 2018; 10:14414-14420. [PMID: 29897095 DOI: 10.1039/c8nr03220c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Multi-modality in vivo bioimaging has great renown for offering more comprehensive information in medical diagnosis and research. Incorporating different bioimaging capabilities into one biocompatible nanoprobe requires an elegant structural design. Considering optical and magnetic properties, X-ray absorption ability, and clinical safety, we prepared a water-soluble and upconverting PSIoAm-modified Sr2Yb0.3Gd0.7F7:Er3+/Tm3+ bio-probe that not only had high photostability and excellent cell membrane permeability, but could also distinguish the four types of cancer cells and normal cells tested within the scope of our study. What's more, it could realize the in vivo trimodality imaging of upconversion fluorescence, X-ray computed tomography and magnetic resonance. The histological analysis of visceral sections further demonstrated that the multifunctional bio-probe was highly safe, which could be applied to clinical diagnosis.
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Affiliation(s)
- Li-Jun Xiang
- College of Chemistry and Chemical Engineering, Anhui University and Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Hefei, 230601, P. R. China
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Belleza OJV, Naraga AMB, Villaraza AJL. Relative Ligand Exchange Rates in Gd-based MRI Contrast Agent Formation as Probed by Gd-XO Complex. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Oliver John V. Belleza
- Institute of Chemistry, College of Science; University of the Philippines - Diliman; Quezon City 1101 Metro Manila, Philippines
| | - Ansyl Marie B. Naraga
- Institute of Chemistry, College of Science; University of the Philippines - Diliman; Quezon City 1101 Metro Manila, Philippines
| | - Aaron Joseph L. Villaraza
- Institute of Chemistry, College of Science; University of the Philippines - Diliman; Quezon City 1101 Metro Manila, Philippines
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Parker D, Long NJ, Faulkner S. Challenges for chemistry in molecular imaging. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2017; 375:rsta.2017.0024. [PMID: 29038379 PMCID: PMC5647267 DOI: 10.1098/rsta.2017.0024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/22/2017] [Indexed: 06/07/2023]
Affiliation(s)
- David Parker
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Nicholas J Long
- Department of Chemistry, Imperial College, South Kensington, London SW7 2AZ, UK
| | - Stephen Faulkner
- Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, UK
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