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Chen S, Zhuang D, Jia Q, Guo B, Hu G. Advances in Noninvasive Molecular Imaging Probes for Liver Fibrosis Diagnosis. Biomater Res 2024; 28:0042. [PMID: 38952717 PMCID: PMC11214848 DOI: 10.34133/bmr.0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 05/08/2024] [Indexed: 07/03/2024] Open
Abstract
Liver fibrosis is a wound-healing response to chronic liver injury, which may lead to cirrhosis and cancer. Early-stage fibrosis is reversible, and it is difficult to precisely diagnose with conventional imaging modalities such as magnetic resonance imaging, positron emission tomography, single-photon emission computed tomography, and ultrasound imaging. In contrast, probe-assisted molecular imaging offers a promising noninvasive approach to visualize early fibrosis changes in vivo, thus facilitating early diagnosis and staging liver fibrosis, and even monitoring of the treatment response. Here, the most recent progress in molecular imaging technologies for liver fibrosis is updated. We start by illustrating pathogenesis for liver fibrosis, which includes capillarization of liver sinusoidal endothelial cells, cellular and molecular processes involved in inflammation and fibrogenesis, as well as processes of collagen synthesis, oxidation, and cross-linking. Furthermore, the biological targets used in molecular imaging of liver fibrosis are summarized, which are composed of receptors on hepatic stellate cells, macrophages, and even liver collagen. Notably, the focus is on insights into the advances in imaging modalities developed for liver fibrosis diagnosis and the update in the corresponding contrast agents. In addition, challenges and opportunities for future research and clinical translation of the molecular imaging modalities and the contrast agents are pointed out. We hope that this review would serve as a guide for scientists and students who are interested in liver fibrosis imaging and treatment, and as well expedite the translation of molecular imaging technologies from bench to bedside.
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Affiliation(s)
- Shaofang Chen
- Department of Radiology, Shenzhen People’s Hospital (The Second Clinical Medical College,
Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
| | - Danping Zhuang
- Department of Radiology, Shenzhen People’s Hospital (The Second Clinical Medical College,
Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
| | - Qingyun Jia
- Department of Radiology, Shenzhen People’s Hospital (The Second Clinical Medical College,
Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
| | - Bing Guo
- School of Science, Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Shenzhen Key Laboratory of Advanced Functional Carbon Materials Research and Comprehensive Application,
Harbin Institute of Technology, Shenzhen 518055, China
| | - Genwen Hu
- Department of Radiology, Shenzhen People’s Hospital (The Second Clinical Medical College,
Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China
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Zhang B, Yang R, Yu H, Peng Y, Huang H, Hameed MMA, Wang H, Zhang G, El-Newehy M, Shen M, Shi X, Peng S. Macrophage membrane-camouflaged nanoclusters of ultrasmall iron oxide nanoparticles for precision glioma theranostics. Biomater Sci 2024; 12:2705-2716. [PMID: 38607326 DOI: 10.1039/d4bm00357h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Developing effective nanomedicines to cross the blood-brain barrier (BBB) for efficient glioma theranostics is still considered to be a challenging task. Here, we describe the development of macrophage membrane (MM)-coated nanoclusters (NCs) of ultrasmall iron oxide nanoparticles (USIO NPs) with dual pH- and reactive oxygen species (ROS)-responsivenesses for magnetic resonance (MR) imaging and chemotherapy/chemodynamic therapy (CDT) of orthotopic glioma. Surface citrate-stabilized USIO NPs were solvothermally synthesized, sequentially modified with ethylenediamine and phenylboronic acid, and cross-linked with gossypol to form gossypol-USIO NCs (G-USIO NCs), which were further coated with MMs. The prepared MM-coated G-USIO NCs (G-USIO@MM NCs) with a mean size of 99.9 nm display tumor microenvironment (TME)-responsive gossypol and Fe release to promote intracellular ROS production and glutathione consumption. With the MM-mediated BBB crossing and glioma targeting, the G-USIO@MM NCs can specifically inhibit orthotopic glioma in vivo through the gossypol-mediated chemotherapy and Fe-mediated CDT. Meanwhile, USIO NPs can be dissociated from the NCs under the TME, thus allowing for effective T1-weighted glioma MR imaging. The developed G-USIO@MM NCs with simple components and drug as a crosslinker are promising for glioma theranostics, and may be extended to tackle other cancer types.
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Affiliation(s)
- Bin Zhang
- Department of Radiology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China.
| | - Rui Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China.
- Medical School, Kunming University of Science and Technology, Kunming 650500, China
| | - Hongwei Yu
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Yamin Peng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China.
| | - Haoyu Huang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China.
| | - Meera Moydeen Abdul Hameed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Han Wang
- Department of Radiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Guixiang Zhang
- Department of Radiology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai 200434, China.
| | - Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Mingwu Shen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China.
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China.
- CQM-Centro de Quimica da Madeira, Universidade da Madeira, Funchal 9020-105, Portugal
| | - Shaojun Peng
- Center for Biological Science and Technology & College of Arts and Sciences, Beijing Normal University, Zhuhai 519087, China.
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Sharma P, Cheng J, Coulthard A. Where does the gadolinium go? A review into the excretion and retention of intravenous gadolinium. J Med Imaging Radiat Oncol 2023; 67:742-752. [PMID: 37665796 DOI: 10.1111/1754-9485.13581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/19/2023] [Indexed: 09/06/2023]
Abstract
Gadolinium-based contrast agents (GBCAs) are commonly used in medical imaging. Most intravenously (IV) administered gadolinium is excreted via the kidneys, and pathological retention in renal failure leading to nephrogenic systemic fibrosis (NSF) is well described. More recently, retention of gadolinium in the body in the absence of renal disease has been identified, with unknown clinical consequences. Many patients are aware of this, either through the media or via comprehensive consent documentation. Some internet sites, without hard evidence, have suggested a constellation of possible symptoms associated with GBCA retention. Recent experience with patients ascribing symptoms to a contrast-enhanced MRI examination prompted this review of the fate of injected GBCA after MRI study, and of information available to patients online regarding gadolinium retention.
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Affiliation(s)
- Pranav Sharma
- Department of Medical Imaging, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Jeffrey Cheng
- Department of Medical Imaging, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | - Alan Coulthard
- Department of Medical Imaging, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
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Lee Y, Kim J, Kwon S, Jeong JC, Joo KW, Oh KH. The need for prophylactic hemodialysis to protect against nephrogenic systemic fibrosis in patients with end-stage renal disease receiving gadolinium-based contrast agents. Acta Radiol 2023; 64:2492-2496. [PMID: 37128169 DOI: 10.1177/02841851231171660] [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: 05/03/2023]
Abstract
BACKGROUND The risk of gadolinium (Gd)-based contrast agent (GBCA)-induced nephrogenic systemic fibrosis (NSF) in patients with end-stage renal disease (ESRD) and the efficacy of prophylactic hemodialysis (HD) for protection against NSF are not well understood or summarized in the literature. PURPOSE To determine the risk for NSF related to frequency and time per dialysis session after Gd-magnetic resonance imaging (MRI) by emphasizing the safety of Gd-MRI in patients with ESRD. MATERIAL AND METHODS This retrospective observational study identified all GBCA injections for MRI examinations performed at two tertiary referral hospitals between 2005 and 2020. All clinical data, including dialysis records and medical history, were investigated for each patient through 2021. The end of follow-up coincided with the last hospital visit. RESULTS Overall, 1129 patients with ESRD underwent 1461 Gd-MRI scans (41.5% gadoterate, 39.4% gadobutrol, and 7.7% gadoxetate); a total of 958 patients with 1229 (84.1%) examinations underwent HD on the day of the MRI study, within 2.1 ± 2.0 h (range = 0.2-15.7 h) immediately after Gd exposure. In 53.4% of scans, frequent HD had been performed urgently and then twice more on consecutive days to prophylactically avoid NSF. No cases of NSF were identified during the follow-up period (mean = 81.7 ± 50.5 months) regardless of dose of HD. CONCLUSION No cases of NSF were reported in 1461 Gd-MRI examinations of 1129 inpatients with ESRD on HD. Our findings support the lack of benefit of frequent prophylactic HD being performed urgently within 4 h of the receipt of GBCA.
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Affiliation(s)
- Yeonhee Lee
- Department of Internal Medicine, Uijeongbu Eulji Medical Center, Eulji University, Gyeonggi-do, Republic of Korea
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Junghoon Kim
- Department of Radiology, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Soie Kwon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Chung-Ang University Heukseok Hospital, Seoul, Republic of Korea
| | - Jong Cheol Jeong
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Kwon Wook Joo
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Chung-Ang University Heukseok Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Internal Medicine, Chung-Ang University Heukseok Hospital, Seoul, Republic of Korea
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
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Tang R, Chen Y, He N, Li Y, Jin Z, Chen KM, Yan F. Effect of gadopentetate dimeglumine on bone growth in zebrafish caudal fins. Toxicol Lett 2023; 374:11-18. [PMID: 36496117 DOI: 10.1016/j.toxlet.2022.12.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/17/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Compared with MR plain scanning, gadolinium (Gd)-enhanced MR scanning can provide more diagnostic information. Gadopentetate dimeglumine is generally used as an MR enhancement contrast agent in some countries. It is a member of linear Gd-based contrast agents (GBCAs) which are considered more likely to release free Gd ions (Gd3+) than macrocyclic GBCAs. Gd3+ is one of the most effective known calcium antagonists, and can compete with calcium ions (Ca2+) in Ca2+-related biological reactions. In this study, animal models of tissue regeneration were established by cutting the caudal fins of zebrafish, and the models were exposed with gadopentetate dimeglumine solution for different immersion times of 1, 3, and 5 min. Three GBCA exposures per week were performed in the first 3 weeks of the follow-up time. Morphological parameters such as regenerative area (RA), bone density, bone thickness and regenerative bone volume (RBV) were quantified using a camera and synchrotron radiation micro CT. RA decreased as total Gd intake increased in both the female group (ρ = -0.784, P < 0.0001) and the male group (ρ = -0.471, P = 0.011). The bone density of the regenerated bone increased after Gd exposure in the treated groups. The morphology of the regenerated bone from the treated groups became shorter and thicker. Our results showed that gadopentetate dimeglumine had osteogenic toxicity in zebrafish.
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Affiliation(s)
- Rongbiao Tang
- Department of Radiology, RuiJin Hospital, Shanghai Jiao Tong University, and School of Medicine, Shanghai, China.
| | - Yi Chen
- Shanghai Institute of Hematology, RuiJin Hospital, Shanghai Jiao Tong University, and School of Medicine, Shanghai, China
| | - Naying He
- Department of Radiology, RuiJin Hospital, Shanghai Jiao Tong University, and School of Medicine, Shanghai, China
| | - Yan Li
- Department of Radiology, RuiJin Hospital, Shanghai Jiao Tong University, and School of Medicine, Shanghai, China
| | - Zhijia Jin
- Department of Radiology, RuiJin Hospital, Shanghai Jiao Tong University, and School of Medicine, Shanghai, China
| | - Ke-Min Chen
- Department of Radiology, RuiJin Hospital, Shanghai Jiao Tong University, and School of Medicine, Shanghai, China
| | - Fuhua Yan
- Department of Radiology, RuiJin Hospital, Shanghai Jiao Tong University, and School of Medicine, Shanghai, China.
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Zhuang D, Zhang H, Hu G, Guo B. Recent development of contrast agents for magnetic resonance and multimodal imaging of glioblastoma. J Nanobiotechnology 2022; 20:284. [PMID: 35710493 PMCID: PMC9204881 DOI: 10.1186/s12951-022-01479-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/29/2022] [Indexed: 11/28/2022] Open
Abstract
Glioblastoma (GBM) as the most common primary malignant brain tumor exhibits a high incidence and degree of malignancy as well as poor prognosis. Due to the existence of formidable blood–brain barrier (BBB) and the aggressive growth and infiltrating nature of GBM, timely diagnosis and treatment of GBM is still very challenging. Among different imaging modalities, magnetic resonance imaging (MRI) with merits including high soft tissue resolution, non-invasiveness and non-limited penetration depth has become the preferred tool for GBM diagnosis. Furthermore, multimodal imaging with combination of MRI and other imaging modalities would not only synergistically integrate the pros, but also overcome the certain limitation in each imaging modality, offering more accurate morphological and pathophysiological information of brain tumors. Since contrast agents contribute to amplify imaging signal output for unambiguous pin-pointing of tumors, tremendous efforts have been devoted to advances of contrast agents for MRI and multimodal imaging. Herein, we put special focus on summary of the most recent advances of not only MRI contrast agents including iron oxide-, manganese (Mn)-, gadolinium (Gd)-, 19F- and copper (Cu)-incorporated nanoplatforms for GBM imaging, but also dual-modal or triple-modal nanoprobes. Furthermore, potential obstacles and perspectives for future research and clinical translation of these contrast agents are discussed. We hope this review provides insights for scientists and students with interest in this area.
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Affiliation(s)
- Danping Zhuang
- The Second Clinical Medical College, Jinan University, Shenzhen, Guangdong, 518020, China
| | - Huifen Zhang
- Department of Radiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China
| | - Genwen Hu
- Department of Radiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.
| | - Bing Guo
- School of Science and Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen, 518055, China.
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Davies J, Siebenhandl-Wolff P, Tranquart F, Jones P, Evans P. Gadolinium: pharmacokinetics and toxicity in humans and laboratory animals following contrast agent administration. Arch Toxicol 2022; 96:403-429. [PMID: 34997254 PMCID: PMC8837552 DOI: 10.1007/s00204-021-03189-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/02/2021] [Indexed: 12/12/2022]
Abstract
Gadolinium-based contrast agents (GBCAs) have transformed magnetic resonance imaging (MRI) by facilitating the use of contrast-enhanced MRI to allow vital clinical diagnosis in a plethora of disease that would otherwise remain undetected. Although over 500 million doses have been administered worldwide, scientific research has documented the retention of gadolinium in tissues, long after exposure, and the discovery of a GBCA-associated disease termed nephrogenic systemic fibrosis, found in patients with impaired renal function. An understanding of the pharmacokinetics in humans and animals alike are pivotal to the understanding of the distribution and excretion of gadolinium and GBCAs, and ultimately their potential retention. This has been well studied in humans and more so in animals, and recently there has been a particular focus on potential toxicities associated with multiple GBCA administration. The purpose of this review is to highlight what is currently known in the literature regarding the pharmacokinetics of gadolinium in humans and animals, and any toxicity associated with GBCA use.
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Affiliation(s)
- Julie Davies
- GE Healthcare, Pollards Wood, Nightingales Lane, Chalfont St. Giles, UK.
| | | | | | - Paul Jones
- GE Healthcare, Pollards Wood, Nightingales Lane, Chalfont St. Giles, UK
| | - Paul Evans
- GE Healthcare, Pollards Wood, Nightingales Lane, Chalfont St. Giles, UK
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Samreen N, Mercado C, Heacock L, Chacko C, Partridge SC, Chhor C. Screening Breast MRI Primer: Indications, Current Protocols, and Emerging Techniques. JOURNAL OF BREAST IMAGING 2021; 3:387-398. [PMID: 38424773 DOI: 10.1093/jbi/wbaa116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Indexed: 03/02/2024]
Abstract
Breast dynamic contrast-enhanced MRI (DCE-MRI) is the most sensitive imaging modality for the detection of breast cancer. Screening MRI is currently performed predominantly in patients at high risk for breast cancer, but it could be of benefit in patients at intermediate risk for breast cancer and patients with dense breasts. Decreasing scan time and image interpretation time could increase cost-effectiveness, making screening MRI accessible to a larger group of patients. Abbreviated breast MRI (Ab-MRI) reduces scan time by decreasing the number of sequences obtained, but as multiple delayed contrast enhanced sequences are not obtained, no kinetic information is available. Ultrafast techniques rapidly acquire multiple sequences during the first minute of gadolinium contrast injection and provide information about both lesion morphology and vascular kinetics. Diffusion-weighted imaging is a noncontrast MRI technique with the potential to detect mammographically occult cancers. This review article aims to discuss the current indications of breast MRI as a screening tool, examine the standard breast DCE-MRI technique, and explore alternate screening MRI protocols, including Ab-MRI, ultrafast MRI, and noncontrast diffusion-weighted MRI, which can decrease scan time and interpretation time.
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Affiliation(s)
- Naziya Samreen
- New York University, Department of Radiology, Garden City, NY, USA
| | - Cecilia Mercado
- NYU School of Medicine, Department of Radiology, New York, NY, USA
| | - Laura Heacock
- NYU School of Medicine, Department of Radiology, New York, NY, USA
| | - Celin Chacko
- New York University, Department of Radiology, Garden City, NY, USA
| | | | - Chloe Chhor
- NYU School of Medicine, Department of Radiology, New York, NY, USA
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Granata V, Fusco R, Avallone A, Cassata A, Palaia R, Delrio P, Grassi R, Tatangelo F, Grazzini G, Izzo F, Petrillo A. Abbreviated MRI protocol for colorectal liver metastases: How the radiologist could work in pre surgical setting. PLoS One 2020; 15:e0241431. [PMID: 33211702 PMCID: PMC7676687 DOI: 10.1371/journal.pone.0241431] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/15/2020] [Indexed: 02/07/2023] Open
Abstract
Background MRI is the most reliable imaging modality that allows to assess liver metastases. Our purpose is to compare the per-lesion and per-patient detection rate of gadoxetic acid-(Gd-EOB) enhanced liver MRI and fast MR protocol including Diffusion Weighted Imaging (DWI) and T2-W Fat Suppression sequence in the detection of liver metastasis in pre surgical setting. Methods One hundred and eight patients with pathologically proven liver metastases (756 liver metastases) underwent Gd-EOBMRI were enrolled in this study. Three radiologist independently graded the presence of liver lesions on a five-point confidence scale assessed only abbreviated protocol (DWI and sampling perfection with application-optimized contrasts using different flip angle evolution (SPACE) fat suppressed sequence) and after an interval of more than 2 weeks the conventional study (all acquired sequences). Per-lesion and per-patient detection rate of metastases were calculated. Weighted к values were used to evaluate inter-reader agreement of the confidence scale regarding the presence of the lesion. Results MRI detected 732 liver metastases. All lesions were identified both by conventional study as by abbreviated protocol. In terms of per-lesion detection rate of liver metastasis, all three readers had higher detection rate both with abbreviated protocol and with standard protocol with Gd-EOB (96.8% [732 of 756] vs. 96.5% [730 of 756] for reader 1; 95.8% [725 of 756] vs. 95.2% [720 of 756] for reader 2; 96.5% [730 of 756] vs. 96.5% [730 of 756] for reader 3). Inter-reader agreement of lesions detection rate between the three radiologists was excellent (k range, 0.86–0.98) both for Gd-EOB MRI and for Fast protocol (k range, 0.89–0.99). Conclusion Abbreviated protocol showed the same detection rate than conventional study in detection of liver metastases.
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Affiliation(s)
- Vincenza Granata
- Radiology Division, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
| | - Roberta Fusco
- Radiology Division, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
- * E-mail:
| | - Antonio Avallone
- Gastrointestinal Oncology Division, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
| | - Antonino Cassata
- Gastrointestinal Oncology Division, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
| | - Raffaele Palaia
- Hepatobiliary Surgical Oncology Division, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
| | - Paolo Delrio
- Division of Gastrointestinal Surgical Oncology, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
| | - Roberta Grassi
- Division of Radiology, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Fabiana Tatangelo
- Division of Pathology, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
| | - Giulia Grazzini
- Division of Radiology, “Azienda Ospedaliera Universitaria Careggi”, Florence, Italy
| | - Francesco Izzo
- Hepatobiliary Surgical Oncology Division, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
| | - Antonella Petrillo
- Radiology Division, “Istituto Nazionale Tumori IRCCS Fondazione Pascale – IRCCS di Napoli”, Naples, Italy
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Liu M. Lifecycle of Gadolinium-Based Contrast Agents. J Magn Reson Imaging 2020; 53:1295-1299. [PMID: 32989902 DOI: 10.1002/jmri.27374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 12/20/2022] Open
Affiliation(s)
- Michael Liu
- Department of Radiology, Columbia University, New York, New York, USA
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11
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Oh H, Chung YE, You JS, Joo CG, Kim PK, Lim JS, Kim MJ. Gadolinium retention in rat abdominal organs after administration of gadoxetic acid disodium compared to gadodiamide and gadobutrol. Magn Reson Med 2020; 84:2124-2132. [PMID: 32162406 DOI: 10.1002/mrm.28249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 01/14/2020] [Accepted: 02/15/2020] [Indexed: 01/09/2023]
Abstract
PURPOSE To compare gadolinium retention in the abdominal organs after administration of gadoxetic acid disodium, a liver-specific contrast agent, compared to gadodiamide and gadobutrol. METHODS Three types of gadolinium-based contrast agents (GBCAs) were administered to rats. A single (gadodiamide and gadobutrol, 0.1 mmol/kg; gadoxetic acid disodium, 0.025 mmol/kg) or double label-recommended dose was intravenously administered once (Group 1), a single dose was administered 4 times (Group 2) and a single dose with or without a chelating agent (intraperitoneal injection immediately after each GBCA administration) was administered (Group 3). Rats were sacrificed after 1, 4, and 12 weeks and gadolinium concentrations in the liver, spleen, kidney, muscle, and bone were measured by inductively coupled plasma mass spectrometry. P values less than 0.05 were considered statistically significant. RESULTS More gadolinium was retained with a double dose compared to a single dose, but there was no observed significant difference in gadolinium retention after a double dose compared to a single dose (P > .05). Gadodiamide was retained the most in all tissues followed by gadobutrol and gadoxetic acid disodium. Residual gadolinium was significantly less at 4 weeks compared to 1 week (P < .05), but no further decrease was observed after 4 weeks (P > .05). The presence of the chelating agent did not significantly decrease the concentration of residual gadolinium (P > .05). CONCLUSION Gadolinium was retained the least in abdominal organs after gadoxetic acid disodium was administered and most of the residual gadolinium was excreted 4 weeks after GBCA administration when a label-recommended dose was administered. A commercially available chelation therapy agent could not reduce gadolinium retention.
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Affiliation(s)
- Hyewon Oh
- Department of Radiology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.,BK21PLUS project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong Eun Chung
- Department of Radiology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.,BK21PLUS project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Je Sung You
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chan Gyu Joo
- Severance Biomedical Science Institute, Yonsei University of College of Medicine, Seoul, Republic of Korea
| | - Pan Ki Kim
- Department of Radiology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.,Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joon Seok Lim
- Department of Radiology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Myeong-Jin Kim
- Department of Radiology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
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12
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Brain tissue gadolinium retention in pediatric patients after contrast-enhanced magnetic resonance exams: pathological confirmation. Pediatr Radiol 2020; 50:388-396. [PMID: 31989188 DOI: 10.1007/s00247-019-04535-w] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 07/31/2019] [Accepted: 09/10/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND Retained gadolinium from gadolinium-based contrast agents (GBCAs) used in MR exams has been inferred based on signal changes on serial brain MRI and subsequently demonstrated pathologically in adults. Retention has been similarly inferred in children but pathological demonstration in pediatric patients is limited. The long-term effects of retained gadolinium are unknown but are potentially of greater concern in children given their increased vulnerability from continuing development and their expected longer period of exposure. Several factors can influence gadolinium retention. In adults as well as in children, greater accumulation has been demonstrated based on MR signal changes with linear compared with macrocyclic gadolinium chelates, attributed to lower chelate affinity with linear agents. Effects of age at exposure on retention are unknown, while differences in GBCA washout rates are still under investigation and might affect gadolinium retention relative to time of GBCA administration. OBJECTIVE The purpose of this study was to confirm whether gadolinium brain deposits are present in pediatric patients who received GBCAs and to quantify the amounts present. MATERIALS AND METHODS Brain autopsy specimens from 10 pediatric patients between 1 year and 13 years of age who underwent at least one contrast-enhanced MR exam were analyzed for elemental gadolinium using inductively coupled plasma mass spectrometry. Brain samples included white matter, basal ganglia (putamen, globus pallidus), thalamus, dentate nucleus and tumor tissue as available. Type and dose of contrast agent, number and timing of contrast-enhanced MR exams and renal function (estimated glomerular filtration rate [eGFR]) were documented for each child. RESULTS Patient exposures ranged from 1 dose to 20 doses of GBCAs including both macrocyclic and linear ionic agents. Gadolinium was found to be present in brain tissue in all children and was generally highest in the globus pallidus. Those who received only macrocyclic agents showed lower levels of gadolinium retention. CONCLUSION This study demonstrates pathological confirmation of gadolinium retention in brain tissue of a series of pediatric patients exposed to GBCAs including not only linear ionic agents but also macrocyclic agents with both nonionic and ionic compounds. The distribution and deposition levels in this small pediatric population are comparable with the findings in adults. While the clinical significance of these deposits remains unknown, at this point it would be prudent to exert caution and avoid unnecessary use of GBCAs in pediatric patients.
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13
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Sun Z, Huang G, Ma Z. Synthesis of theranostic Anti-EGFR ligand conjugate iron oxide nanoparticles for magnetic resonance imaging for treatment of liver cancer. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Anderson A, Singh J, Bove R. Neuroimaging and radiation exposure in pregnancy. HANDBOOK OF CLINICAL NEUROLOGY 2020; 171:179-191. [PMID: 32736749 DOI: 10.1016/b978-0-444-64239-4.00009-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Physiologic changes occurring in pregnancy and postpartum can have secondary effects on the maternal nervous system. While most alterations to neurologic function during pregnancy are transient, there is an elevated risk for more serious complication in the peripartum period, such as cerebrovascular events or exacerbation of preexisting neurologic conditions. Due to the morbidity and mortality associated with these neurologic manifestations in some cases, timely diagnostic evaluation is essential. In the pregnant population, the use of diagnostic techniques such as computed tomography (CT) and magnetic resonance imaging (MRI), commonly employed to evaluate emergent neurologic abnormalities, requires special consideration of the potential risks associated with prenatal exposure. This review discusses several neurologic conditions affecting women during pregnancy for which diagnostic imaging may be warranted. Concerns relating to CT and MRI procedures, radiation exposure in utero, and exposure to intravenous contrast by placental transfer and breastfeeding are also reviewed.
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Affiliation(s)
- Annika Anderson
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, United States
| | - Jessica Singh
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, United States
| | - Riley Bove
- Department of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, CA, United States; Department of Neurology, School of Medicine, University of California San Francisco, San Francisco, CA, United States.
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15
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Koiso T, Yamamoto M, Watanabe S, Barfod BE. Signal intensity increases in dentate nucleus/globus pallidus/pulvinar on unenhanced T1WI MR images after multiple examinations with gadodiamide. Neuroradiol J 2019; 32:215-224. [PMID: 30924388 DOI: 10.1177/1971400919839646] [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: 11/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Elevated signal intensity (SI) in the dentate nucleus (DN), globus pallidus (GP) and pulvinar (PUL) was reportedly observed on unenhanced T1-weighted (T1WI) magnetic resonance (MR) images in patients receiving multiple enhanced MR examinations. We aimed to clarify whether this phenomenon influences the long-term neurological status of patients. MATERIALS AND METHODS We studied 196 radiosurgically treated patients undergoing ≥10 MR examinations using a single dose of gadodiamide and the same 1.5 Tesla MR unit. SI ratios were calculated by referencing the brainstem (BS) for the DN and the thalamus (TH) for the GP and PUL. We compared the SI ratios at the first, fifth, and 10th, and at the most recent examinations. The neurological symptoms of all 196 patients were assessed at each MR examination by one of the authors (MY). RESULTS The DN/BS and GP/TH SI ratios were significantly increased at the fifth examination ( p < .0001, p = 0.0094) and, thereafter, gradually increased. Although the PUL/TH SI ratio was not significantly increased at the fifth examination ( p = 0.2515), a significant increase was noted at the 10th examination ( p < .0001). There were no significant predictive factors for DN/BS SI increases. Younger age, no brain metastasis, and normal estimated glomerular filtration rate were related to GP/TH SI ratio increases ( p = 0.0308, p = 0.0001, p = 0.0306). Higher age and total bilirubin level were related to an increased PUL/TH SI ratio ( p = 0.0276, p = 0.0097). No patients experienced gadodiamide-related health problems. CONCLUSIONS Although the SI ratios rose as numbers of gadodiamide administrations increased, no adverse health effects have developed to date.
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Affiliation(s)
- Takao Koiso
- 1 Katsuta Hospital Mito GammaHouse, Hitachinaka, Japan.,2 Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Japan
| | - Masaaki Yamamoto
- 1 Katsuta Hospital Mito GammaHouse, Hitachinaka, Japan.,3 Department of Neurosurgery, Tokyo Women's Medical University Medical Center East, Japan
| | - Shinya Watanabe
- 2 Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, Japan
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16
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Currie GM. Pharmacology, Part 5: CT and MRI Contrast Media. J Nucl Med Technol 2019; 47:189-202. [PMID: 30770477 DOI: 10.2967/jnmt.118.220012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 12/20/2018] [Indexed: 01/21/2023] Open
Abstract
Pharmacology principles provide key understanding that underpins the clinical and research roles of nuclear medicine practitioners. The scope of practice of the nuclear medicine technologist demands knowledge and understanding of indications, contraindications, warnings, precautions, proper use, drug interactions, and adverse reactions for each medication to be used. This article is part of a series that aims to enhance understanding of pharmacologic principles relevant to nuclear medicine. This article will build on the introductory concepts, terminology, and principles of pharmacology explored in the first 2 articles in the series. Specifically, this article will focus on the pharmacologic principles and adverse reactions associated with iodinated and gadolinium contrast media used in CT and MRI, respectively.
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Affiliation(s)
- Geoffrey M Currie
- Faculty of Science, Charles Sturt University, Wagga Wagga, Australia, and Regis University, Boston, Massachusetts
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17
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Delfino R, Biasotto M, Candido R, Altissimo M, Stebel M, Salomè M, van Elteren JT, Vogel Mikuš K, Zennaro C, Šala M, Addobbati R, Tromba G, Pascolo L. Gadolinium tissue deposition in the periodontal ligament of mice with reduced renal function exposed to Gd-based contrast agents. Toxicol Lett 2019; 301:157-167. [DOI: 10.1016/j.toxlet.2018.11.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 11/14/2018] [Accepted: 11/22/2018] [Indexed: 10/27/2022]
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18
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Song C, Sun W, Xiao Y, Shi X. Ultrasmall iron oxide nanoparticles: synthesis, surface modification, assembly, and biomedical applications. Drug Discov Today 2019; 24:835-844. [PMID: 30639557 DOI: 10.1016/j.drudis.2019.01.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 12/05/2018] [Accepted: 01/07/2019] [Indexed: 12/18/2022]
Abstract
Ultrasmall iron oxide nanoparticles (USIO NPs) with a size <5nm are a class of emerging nanomaterials. As a result of their intrinsic drawbacks related to poor colloidal stability, low r1 relaxivity, and lack of functionality, various strategies have been adopted to synthesize USIO NPs with controllable sizes, to surface modify the particles with polymers, and to assemble them in combination with other nanoscale platforms. Here, we review recent progresses in the synthesis, surface modification, and self-assembly of USIO NPs to address key issues in their biomedical application in the field of cancer diagnosis and therapy, in particular magnetic resonance (MR) imaging, dual-modal or multimodal imaging, drug delivery, and theranostics.
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Affiliation(s)
- Cong Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Wenjie Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Yunchao Xiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China.
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19
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Shi M, Zhang J, Li J, Fan Y, Wang J, Sun W, Yang H, Peng C, Shen M, Shi X. Polydopamine-coated magnetic mesoporous silica nanoparticles for multimodal cancer theranostics. J Mater Chem B 2019; 7:368-372. [DOI: 10.1039/c8tb03021a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Polydopamine-coated mesoporous silica nanoparticles loaded with ultrasmall Fe3O4 nanoparticles can be prepared for multimodal imaging and combination therapy of tumors.
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20
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Maloney E, Stanescu AL, Perez FA, Iyer RS, Otto RK, Leary S, Steuten L, Phipps AI, Shaw DWW. Surveillance magnetic resonance imaging for isolated optic pathway gliomas: is gadolinium necessary? Pediatr Radiol 2018; 48:1472-1484. [PMID: 29789890 DOI: 10.1007/s00247-018-4154-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 02/21/2018] [Accepted: 04/30/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND Pediatric optic pathway gliomas are typically indolent but have a variable clinical course. Treatment is dictated by symptoms and changes on contrast-enhanced MRI examinations. Gadolinium retention in children has motivated parsimonious use of gadolinium-based contrast agents. OBJECTIVES To determine surveillance MR factors that motivate changes in tumor-directed therapies and extrapolate cost-efficacy of a non-contrast follow-up protocol. MATERIALS AND METHODS Using an imaging database search we identified children with isolated optic pathway gliomas and ≥3 follow-up contrast-enhanced MRIs. We reviewed medical records and imaging for: (1) coincident changes on contrast-enhanced MRI and tumor-directed therapy, (2) demographics and duration of follow-up, (3) motivations for intervention, (4) assessment of gadolinium-based contrast agents' utility and (5) health care utilization data. We assessed cost impact in terms of relative value unit (RVU) burden. RESULTS We included 17 neurofibromatosis type 1 (NF1) and 21 non-NF1 patients who underwent a median 16.9 and 24.3 cumulative contrast-enhanced MR exams over 7.7 years and 8.1 years of follow-up, respectively. Eight children (one with NF1) had intervention based on contrast-enhanced MR findings alone. For these eight, increased tumor size was the only common feature, and it was apparent on non-contrast T2 sequences. For the median patient, a non-contrast follow-up protocol could result in 15.9 (NF1) and 23.3 (non-NF1) fewer gadolinium-based contrast agent administrations, and a 39% lower yearly RVU burden. CONCLUSION Pediatric patients with isolated optic pathway gliomas undergo a large number of routine contrast-enhanced MR follow-up exams. Gadolinium might not be needed for these exams to inform management decisions. Secondary benefits of a non-contrast follow-up protocol include decreased cost and risk to the patient.
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Affiliation(s)
- Ezekiel Maloney
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - A Luana Stanescu
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Francisco A Perez
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Ramesh S Iyer
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Randolph K Otto
- Department of Radiology,, University of Washington,, Seattle, WA, USA.,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA
| | - Sarah Leary
- Cancer and Blood Disorders,, University of Washington, Seattle Children's Hospital,, Seattle, WA, USA
| | - Lotte Steuten
- Department of Pharmacy,, University of Washington, Fred Hutchinson Cancer Research Center,, Seattle, WA, USA
| | - Amanda I Phipps
- Department of Epidemiology,, University of Washington School of Public Health,, Seattle, WA, USA
| | - Dennis W W Shaw
- Department of Radiology,, University of Washington,, Seattle, WA, USA. .,Department of Radiology,, Seattle Children's Hospital,, 4800 Sand Point Way NE,, Seattle, WA, 98105, USA.
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21
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Amin R, Darrah T, Wang H, Amin S. Editor's Highlight: In Utero Exposure to Gadolinium and Adverse Neonatal Outcomes in Premature Infants. Toxicol Sci 2018; 156:520-526. [PMID: 28201627 DOI: 10.1093/toxsci/kfx013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Gadolinium is a toxic rare earth element that is used as a contrast enhancement agent for diagnostic medical imaging. However, because of safety concerns to the developing fetus derived from preclinical studies, gadolinium can only be used during pregnancy if the potential benefits justify the potential risks to a fetus. Because there are no previous well designed safety studies on the developing fetus, we aimed to evaluate the potential adverse effects of in utero gadolinium exposure in high-risk premature infants. We performed a prospective dose (cord blood gadolinium concentration) - response (outcomes) study involving 104, 24-33 weeks gestational age (GA) infants. The mean (range) cord blood gadolinium concentration of infants measured using Inductively Coupled Plasma Mass Spectrometry was 191 (3.4-3729.6) pg/ml. The association between cord blood gadolinium concentration and each neonatal outcome was evaluated using linear or logistic regression analysis. The GA, race, gender, and antenatal steroid exposure were considered priori confounders. Recent adult human studies have shown that gadolinium exposure may be associated with nephrotoxicity. However, we found no adverse effects on renal function or other common outcomes including degree of prematurity, small for GA, respiratory distress syndrome, hyperbilirubinemia, intraventricular hemorrhage, necrotizing enterocolitis, patent ductus arteriosus, chronic lung disease, retinopathy of prematurity, and osteopenia of prematurity during the neonatal period with an increase in cord blood gadolinium concentration. None of the infants had clinically evident congenital malformations. In conclusion, gadolinium use during pregnancy is unlikely to be associated with adverse effects in infants during the neonatal period.
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Affiliation(s)
- Radhika Amin
- Pittsford Mendon High School, Pittsford, New York 14534.,Student Academic Internship Program, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York 14642
| | - Thomas Darrah
- School of Earth Sciences, The Ohio State University, Columbus, Ohio 43210-1398
| | - Hongyue Wang
- Department of Biostatistics, University of Rochester Medical Center, Rochester, New York 14642
| | - Sanjiv Amin
- Department of Pediatrics, Division of Neonatology, University of Rochester Medical Center, Rochester, New York 14642
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22
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Lenkinski RE. Gadolinium Retention and Deposition Revisited: How the Chemical Properties of Gadolinium-based Contrast Agents and the Use of Animal Models Inform Us about the Behavior of These Agents in the Human Brain. Radiology 2017; 285:721-724. [DOI: 10.1148/radiol.2017172138] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Robert E. Lenkinski
- From the Department of Radiology and Advanced Imaging Research Center, University of Texas at Southwestern Medical Center, 5253 Harry Hines Blvd, Dallas, TX 75390-9061
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23
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Chen HL, Hsu FT, Kao YCJ, Liu HS, Huang WZ, Lu CF, Tsai PH, Ali AAA, Lee GA, Chen RJ, Chen CY. Identification of epidermal growth factor receptor-positive glioblastoma using lipid-encapsulated targeted superparamagnetic iron oxide nanoparticles in vitro. J Nanobiotechnology 2017; 15:86. [PMID: 29166921 PMCID: PMC5700523 DOI: 10.1186/s12951-017-0313-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 10/30/2017] [Indexed: 01/27/2023] Open
Abstract
Background Targeted superparamagnetic iron oxide (SPIO) nanoparticles have emerged as a promising biomarker detection tool for molecular magnetic resonance (MR) image diagnosis. To identify patients who could benefit from Epidermal growth factor receptor (EGFR)-targeted therapies, we introduce lipid-encapsulated SPIO nanoparticles and hypothesized that anti-EGFR antibody cetuximab conjugated of such nanoparticles can be used to identify EGFR-positive glioblastomas in non-invasive T2 MR image assays. The newly introduced lipid-coated SPIOs, which imitate biological cell surface and thus inherited innate nonfouling property, were utilized to reduce nonspecific binding to off-targeted cells and prevent agglomeration that commonly occurs in nanoparticles. Results The synthesized targeted EGFR-antibody-conjugated SPIO (EGFR-SPIO) nanoparticles were characterized using dynamic light scattering, zeta potential assays, gel electrophoresis mobility shift assays, transmission electron microscopy (TEM) images, and cell line affinity assays, and the results showed that the conjugation was successful. The targeting efficiency of the synthesized EGFR-SPIO nanoparticles was confirmed through Prussian blue staining and TEM images by using glioblastoma cell lines with high or low EGFR expression levels. The EGFR-SPIO nanoparticles preferentially targeted U-251 cells, which have high EGFR expression, and were internalized by cells in a prolonged incubation condition. Moreover, the T2 MR relaxation time of EGFR-SPIO nanoparticles could be used for successfully identifying glioblastoma cells with elevated EGFR expression in vitro and distinguishing U-251 cells from U-87MG cells, which have low EFGR expression. Conclusion These findings reveal that the lipid-encapsulated EGFR-SPIO nanoparticles can specifically target cells with elevated EGFR expression in the three tested human glioblastoma cell lines. The results of this study can be used for noninvasive molecular MR image diagnosis in the future. Electronic supplementary material The online version of this article (10.1186/s12951-017-0313-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Huai-Lu Chen
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Fei-Ting Hsu
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Medical Imaging, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Chieh Jill Kao
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hua-Shan Liu
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Wan-Zhen Huang
- Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chia-Feng Lu
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Ping-Huei Tsai
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Medical Imaging, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ahmed Atef Ahmed Ali
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Gilbert Aaron Lee
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Ray-Jade Chen
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan. .,Division of General Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan.
| | - Cheng-Yu Chen
- Translational Imaging Research Center, College of Medicine, Taipei Medical University, Taipei, Taiwan. .,Department of Medical Research, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan. .,Department of Medical Imaging, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan. .,Department of Radiology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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Martí-Bonmatí L, Martí-Bonmatí E. Retención de compuestos de gadolinio usados en resonancia magnética: revisión crítica y recomendaciones de las agencias regulatorias. RADIOLOGIA 2017; 59:469-477. [DOI: 10.1016/j.rx.2017.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Revised: 08/29/2017] [Accepted: 09/26/2017] [Indexed: 12/17/2022]
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25
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Wan C, Xue R, Zhan Y, Wu Y, Li X, Pei F. Metabolomic Analysis of N-acetylcysteine Protection of Injury from Gadolinium-DTPA Contrast Agent in Rats with Chronic Renal Failure. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2017; 21:540-549. [PMID: 28934030 DOI: 10.1089/omi.2017.0114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gadolinium-based contrast agents (GBCAs) are frequently used to enhance the diagnostic efficacy of magnetic resonance imaging. On the other hand, the association between GBCA administration in patients with advanced renal disease and nephrogenic systemic fibrosis (NSF) was also noted. NSF is a systemic disorder characterized by widespread tissue fibrosis that may lead to death. N-acetylcysteine (NAC) protects rats from injury induced by gadolinium-based contrast agents, but the underlying mechanisms remain unclear. In this study, a nuclear magnetic resonance-based metabolomic approach was used to systematically investigate the protective effects of NAC on Gd-DTPA-induced injury. Thirty-two male Sprague-Dawley rats were given adenine (200 mg·kg-1 body weight) by oral gavage once a day for 3 weeks to induce chronic renal failure (CRF). NAC (600 mg/L in drinking water for 9 days) pretreatment was initiated 2 days before Gd-DTPA injection (a single tail vein injection, 2 mmol/kg body weight). Serum and liver samples were collected on day 7 after Gd-DTPA injection. By study design, the serum and hepatic metabolic changes of rats were measured in four groups of eight each: CRF, CRF-Gd, CRF-Gd-NAC, and CRF-NAC. Gd-DTPA administration to rats with CRF resulted in disturbances of several metabolic pathways, including glucose, lipid, glutamate, choline, gut microbiota, one-carbon, and purine metabolism. NAC pretreatment reversed the abundance changes of high-density lipoprotein, low-density lipoprotein, very low-density lipoprotein, glutamate, glutamine, oxidized glutathione, choline, phosphocholine, glycerophosphocholine, trimethylamine, and trimethylamine-N-oxide induced by Gd-DTPA. It is noteworthy, however, that the ameliorating effects of NAC on the disturbance of glutamate, choline, and gut microbiota metabolism may be specific to Gd-DTPA. In all, these findings could be potentially useful to decipher the underlying mechanisms of NAC protective effects from the injury induced by gadolinium-based contrast agents.
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Affiliation(s)
- Chuanling Wan
- 1 Changchun Institute of Applied Chemistry , Chinese Academy of Sciences, Changchun, People's Republic of China .,2 University of Chinese Academy of Sciences , Beijing, People's Republic of China
| | - Rong Xue
- 1 Changchun Institute of Applied Chemistry , Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Youyang Zhan
- 1 Changchun Institute of Applied Chemistry , Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Yijie Wu
- 1 Changchun Institute of Applied Chemistry , Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Xiaojing Li
- 1 Changchun Institute of Applied Chemistry , Chinese Academy of Sciences, Changchun, People's Republic of China
| | - Fengkui Pei
- 1 Changchun Institute of Applied Chemistry , Chinese Academy of Sciences, Changchun, People's Republic of China
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Azria D, Blanquer S, Verdier JM, Belamie E. Nanoparticles as contrast agents for brain nuclear magnetic resonance imaging in Alzheimer's disease diagnosis. J Mater Chem B 2017; 5:7216-7237. [PMID: 32264173 DOI: 10.1039/c7tb01599b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Nuclear Magnetic Resonance Imaging (MRI) of amyloid plaques is a powerful non-invasive approach for the early and accurate diagnosis of Alzheimer's disease (AD) along with clinical observations of behavioral changes and cognitive impairment. The present article aims at giving a critical and comprehensive review of recent advances in the development of nanoparticle-based contrast agents for brain MRI. Nanoparticles considered for the MRI of AD must comply with a highly stringent set of requirements including low toxicity and the ability to cross the blood-brain-barrier. In addition, to reach an optimal signal-to-noise ratio, they must exhibit a specific ability to target amyloid plaques, which can be achieved by grafting antibodies, peptides or small molecules. Finally, we propose to consider new directions for the future of MRI in the context of Alzheimer's disease, in particular by enhancing the performances of contrast agents and by including therapeutic functionalities following a theranostic strategy.
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Affiliation(s)
- David Azria
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM, Equipe Matériaux Avancés pour la Catalyse et la Santé, 8 rue de l'Ecole Normale, 34296 Montpellier Cedex 5, France.
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Goischke HK. Safety assessment of gadolinium-based contrast agents (GBCAs) requires consideration of long-term adverse effects in all human tissues. Mult Scler J Exp Transl Clin 2017; 3:2055217317704450. [PMID: 28607758 PMCID: PMC5408503 DOI: 10.1177/2055217317704450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Perrat E, Parant M, Py JS, Rosin C, Cossu-Leguille C. Bioaccumulation of gadolinium in freshwater bivalves. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:12405-12415. [PMID: 28361395 DOI: 10.1007/s11356-017-8869-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/20/2017] [Indexed: 06/07/2023]
Abstract
In this study, the presence of anthropogenic gadolinium (Gd) was evaluated in rivers, close to wastewater treatment plant outputs. Then, one site was selected for in situ experiments to assess the bioaccumulation of Gd in the digestive gland and in the gills of two bivalves (Dreissena rostriformis bugensis and Corbicula fluminea). For both organisms, the results suggested that the bioaccumulation of Gd can be observed when organisms are exposed in a geogenic and anthropogenic Gd mixture. In order to observe if Gd can bioaccumulate in tissues of bivalves when the ion is only present as the main anthropogenic speciation of Gd, i.e., Gd-contrast agents (Gd-CAs), the gadoteric acid was used for a laboratory experiment. In this case, the presence of Gd was clearly detected in a significant amount in the digestive glands of D. rostriformis bugensis and C. fluminea while low concentrations are measured in the gills. For the first time, these results clearly showed that Gd can bioaccumulate in bivalve tissues even when it is only present as Gd-CAs. Biochemical activities were measured in the digestive gland and in the gills of the bivalves to assess the effects of Gd-CA bioaccumulation. No significant variations were observed in the gills. Concerning the digestive gland, after 7 days of exposure at 10 μg L-1 of Gd as Gd-CA speciation, GST activity in D. rostriformis bugensis and lipid hydroperoxide and mitochondrial electron transfer system in C. fluminea had increased. The results suggest an acclimation of the organisms to the presence of Gd-CAs in the medium within less than 21 days.
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Affiliation(s)
- Emilie Perrat
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), UMR 7360 Campus Bridoux-Bâtiment IBiSE-8, rue du Général Delestraint, 57070, Metz, France
| | - Marc Parant
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), UMR 7360 Campus Bridoux-Bâtiment IBiSE-8, rue du Général Delestraint, 57070, Metz, France.
| | - Jean-Sebastien Py
- Laboratoire d'Hydrologie de Nancy, Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du 11 Travail (ANSES), 40 rue Lionnois, 54000, Nancy 12, France
| | - Christophe Rosin
- Laboratoire d'Hydrologie de Nancy, Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du 11 Travail (ANSES), 40 rue Lionnois, 54000, Nancy 12, France
| | - Carole Cossu-Leguille
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), UMR 7360 Campus Bridoux-Bâtiment IBiSE-8, rue du Général Delestraint, 57070, Metz, France.
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Abstract
Recently, there have been numerous major peer-reviewed publications reporting deposition of gadolinium in the dentate nucleus and globus pallidus in subjects with normal renal function. This review takes a retrospective look back through the development of gadolinium-based contrast agents to describe the historical evidence of gadolinium deposition in vivo and shows that deposition in the basal ganglia should come as no surprise. Evidence for gadolinium deposition in both animal models and human patients is described. Stability differences among gadolinium contrast agents have long been recognized in vitro, and deposition of gadolinium in tissues has been described in animal models since at least 1984. The first major study that showed deposition in humans appeared in 1998 regarding patients with renal failure and in 2004 in patients with normal renal function. The historical literature indicates that gadolinium retention in healthy patients is occurring, although the clinical consequences of deposition remain unknown.
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Abstract
Gadolinium-based contrast agents (GBCAs), once believed to be safe for patients with renal disease, have been strongly associated with nephrogenic systemic fibrosis (NSF), a severe systemic fibrosing disorder that predominantly afflicts individuals with advanced renal dysfunction. We provide a historical perspective on the appearance and disappearance of NSF, including its initial recognition as a discrete clinical entity, its association with GBCA exposure, and the data supporting a causative relationship between GBCA exposure and NSF. On the basis of this body of evidence, we propose that the name gadolinium-induced fibrosis (GIF) more accurately reflects the totality of knowledge regarding this disease. Use of high-risk GBCAs, such as formulated gadodiamide, should be avoided in patients with renal disease. Restriction of GBCA use in this population has almost completely eradicated new cases of this debilitating condition. Emerging antifibrotic therapies may be useful for patients who suffer from GIF.
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Affiliation(s)
- Derrick J Todd
- Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115.,Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Boston, Massachusetts 02115
| | - Jonathan Kay
- Division of Rheumatology, Department of Medicine, UMass Memorial Medical Center and University of Massachusetts Medical School, Worcester, Massachusetts 01605;
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Roberts DR, Chatterjee AR, Yazdani M, Marebwa B, Brown T, Collins H, Bolles G, Jenrette JM, Nietert PJ, Zhu X. Pediatric Patients Demonstrate Progressive T1-Weighted Hyperintensity in the Dentate Nucleus following Multiple Doses of Gadolinium-Based Contrast Agent. AJNR Am J Neuroradiol 2016; 37:2340-2347. [PMID: 27469211 DOI: 10.3174/ajnr.a4891] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 06/13/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND PURPOSE While there have been recent reports of brain retention of gadolinium following gadolinium-based contrast agent administration in adults, a retrospective series of pediatric patients has not previously been reported, to our knowledge. We investigated the relationship between the number of prior gadolinium-based contrast agent doses and increasing T1 signal in the dentate nucleus on unenhanced T1-weighted MR imaging. We hypothesized that despite differences in pediatric physiology and the smaller gadolinium-based contrast agent doses that pediatric patients are typically administered based on weighted-adjusted dosing, the pediatric brain would also demonstrate dose-dependent increasing T1 signal in the dentate nucleus. MATERIALS AND METHODS We included children with multiple gadolinium-based contrast agent administrations at our institution. A blinded reader placed ROIs within the dentate nucleus and adjacent cerebellar white matter. To eliminate reader bias, we also performed automated ROI delineation of the dentate nucleus, cerebellar white matter, and pons. Dentate-to-cerebellar white matter and dentate-to pons ratios were compared with the number of gadolinium-based contrast agent administrations. RESULTS During 20 years at our institution, 280 patients received at least 5 gadolinium-based contrast agent doses, with 1 patient receiving 38 doses. Sixteen patients met the inclusion/exclusion criteria for ROI analysis. Blinded reader dentate-to-cerebellar white matter ratios were significantly associated with gadolinium-based contrast agent doses (rs = 0.77, P = .001). The dentate-to-pons ratio and dentate-to-cerebellar white matter ratios based on automated ROI placement were also significantly correlated with gadolinium-based contrast agent doses (t = 4.98, P < .0001 and t = 2.73, P < .02, respectively). CONCLUSIONS In pediatric patients, the number of prior gadolinium-based contrast agent doses is significantly correlated with progressive T1-weighted dentate hyperintensity. Definitive confirmation of gadolinium deposition requires tissue analysis. Any potential clinical sequelae of gadolinium retention in the developing brain are unknown. Given this uncertainty, we suggest taking a cautious stance, including the use, in pediatric patients, of higher stability, macrocyclic agents, which in both human and animal studies have been shown to be associated with lower levels of gadolinium deposition, and detailed documentation of dosing. Most important, a patient should not be deprived of a well-indicated contrasted MR examination.
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Affiliation(s)
- D R Roberts
- From the Departments of Radiology and Radiological Sciences (D.R.R., A.R.C., M.Y., B.M., T.B., H.C., G.B.) .,Neurosciences and Neuroscience Research (D.R.R.)
| | - A R Chatterjee
- From the Departments of Radiology and Radiological Sciences (D.R.R., A.R.C., M.Y., B.M., T.B., H.C., G.B.)
| | - M Yazdani
- From the Departments of Radiology and Radiological Sciences (D.R.R., A.R.C., M.Y., B.M., T.B., H.C., G.B.)
| | - B Marebwa
- From the Departments of Radiology and Radiological Sciences (D.R.R., A.R.C., M.Y., B.M., T.B., H.C., G.B.)
| | - T Brown
- From the Departments of Radiology and Radiological Sciences (D.R.R., A.R.C., M.Y., B.M., T.B., H.C., G.B.)
| | - H Collins
- From the Departments of Radiology and Radiological Sciences (D.R.R., A.R.C., M.Y., B.M., T.B., H.C., G.B.)
| | - G Bolles
- From the Departments of Radiology and Radiological Sciences (D.R.R., A.R.C., M.Y., B.M., T.B., H.C., G.B.)
| | | | - P J Nietert
- Biostatistics (P.J.N.).,Public Health Sciences (P.J.N.), Medical University of South Carolina, Charleston, South Carolina
| | - X Zhu
- Department of Psychology (X.Z.), Normal College, Shihezi University, Xinjiang, China
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Thomsen HS. Nephrogenic systemic fibrosis: a serious adverse reaction to gadolinium - 1997-2006-2016. Part 2. Acta Radiol 2016; 57:643-8. [PMID: 26802070 DOI: 10.1177/0284185115626481] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Henrik S Thomsen
- Department of Diagnostic Radiology 54E2, Copenhagen University Hospital Herlev-Gentofte, Herlev, Denmark
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Giorgi H, Ammerman J, Briffaux JP, Fretellier N, Corot C, Bourrinet P. Non-clinical safety assessment of gadoterate meglumine (Dotarem®) in neonatal and juvenile rats. Regul Toxicol Pharmacol 2015; 73:960-70. [DOI: 10.1016/j.yrtph.2015.09.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 09/10/2015] [Accepted: 09/12/2015] [Indexed: 11/27/2022]
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Qiu L, Tang Y, Chen Y, Huang Z, Zhu Y, Zhang L, Cai L, Wan Q, Feng Y. The effect of MRI contrast agents on hepatic and splenic uptake in the rabbit during (99m) Tc-MDP bone scintigraphy. CONTRAST MEDIA & MOLECULAR IMAGING 2015; 10:438-45. [PMID: 26036779 DOI: 10.1002/cmmi.1646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 02/26/2015] [Accepted: 04/09/2015] [Indexed: 11/09/2022]
Abstract
The objective of this study was to investigate the effects of Omniscan® and Magnevist® on (99m) Tc-MDP uptake in rabbits during (99m) Tc-MDP bone scintigraphy. In Experiment Group 1, 30 healthy adult rabbits were randomized into six subgroups (n = 5); each subgroup experienced a different time interval between injections (30 min, 60 min, 120 min, 240 min, 360 min, 24 h). All six subgroups were injected first with Omniscan®, then with (99m) Tc-MDP. After 7 days, the same six subgroups were injected with normal saline followed by (99m) Tc-MDP at the same time intervals. In Experiment Group 2, 20 healthy adult rabbits were allocated randomly to four subgroups (n = 5); each subgroup experienced a different time interval between injections (30 min, 60 min, 120 min, 240 min). All four subgroups were injected first with Magnevist®, then with (99m) Tc-MDP. After 7 days, the same four subgroups were injected with normal saline followed by (99m) Tc-MDP. In all experiments, whole-body skeletal imaging was performed. Liver, spleen, and background were delineated to determine the target-to-background (T/B) ratio. Diffusely increased intake of the imaging agent was seen in the liver and spleen when the injection-time interval between Omniscan® and (99m) Tc-MDP varied from 30 min to 240 min and when the time interval between Magnevist® and (99m) Tc-MDP was 30 min-60 min. The imaging findings are consistent with the results of L/B and S/B ratios in each experiment group. Both Omniscan® and Magnevist® have an effect on (99m) Tc-MDP uptake during bone scanning; the main effect is diffusely increased hepatic and splenic activity.
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Affiliation(s)
- Lin Qiu
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Yuhui Tang
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Yue Chen
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Zhanwen Huang
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Yan Zhu
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Li Zhang
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Liang Cai
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Qiang Wan
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
| | - Yue Feng
- Department of Nuclear Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou, Sichuan, 646000, China
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Wáng YXJ, Schroeder J, Siegmund H, Idée JM, Fretellier N, Jestin-Mayer G, Factor C, Deng M, Kang W, Morcos SK. Total gadolinium tissue deposition and skin structural findings following the administration of structurally different gadolinium chelates in healthy and ovariectomized female rats. Quant Imaging Med Surg 2015; 5:534-45. [PMID: 26435917 DOI: 10.3978/j.issn.2223-4292.2015.05.03] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To assess the retention of gadolinium (Gd) in skin, liver, and bone following gadodiamide or gadoteric acid administration. METHODS Gd was measured in skin, liver and femur bone in female rats 10 weeks after administration of 17.5 mmol Gd/kg over 5 days of Gd agents. Rat skin microscopy, energy filtering transmission electron microscopy and elemental analysis were performed, and repeated after receiving the same dosage of gadodiamide in rats with osteoporosis induced with bilateral ovariectomy (OVX). The OVX was performed 60 days after the last injection of gadodiamide and animals sacrificed 3 weeks later. RESULTS Gd concentration was 180-fold higher in the skin, 25-fold higher in the femur, and 30-fold higher in the liver in rats received gadodiamide than rats received gadoteric acid. The retention of Gd in the skin with gadodiamide was associated with an increase in dermal cellularity, and Gd encrustation of collagen fibers and deposition inside the fibroblasts and other cells. No differences in Gd concentration in liver, skin, and femur were observed between rats receiving gadodiamide with or without OVX. CONCLUSIONS Gd tissue retention with gadodiamide was higher than gadoteric acid. Tissues Gd deposition did not alter following gadodiamide administration to ovariectomized rats.
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Affiliation(s)
- Yì-Xiáng J Wáng
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Joseph Schroeder
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Heiko Siegmund
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Jean-Marc Idée
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Nathalie Fretellier
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Gaëlle Jestin-Mayer
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Cecile Factor
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Min Deng
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Wei Kang
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
| | - Sameh K Morcos
- 1 Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 2 Central EM Laboratory, Institute of Pathology, Uniklinikum Regensburg, The University of Regensburg, Germany ; 3 Guerbet, Research and Innovation Division, BP 57400, 95943 Roissy-Charles de Gaulle cedex, France ; 4 Department of Anatomical and Cellular Pathology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong SAR, China ; 5 Department of Diagnostic Imaging, The University of Sheffield, Sheffield, UK
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Lost signature: progress and failures in in vivo tracking of implanted stem cells. Appl Microbiol Biotechnol 2015; 99:9907-22. [DOI: 10.1007/s00253-015-6965-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/25/2015] [Accepted: 08/27/2015] [Indexed: 01/01/2023]
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Adin ME, Kleinberg L, Vaidya D, Zan E, Mirbagheri S, Yousem DM. Hyperintense Dentate Nuclei on T1-Weighted MRI: Relation to Repeat Gadolinium Administration. AJNR Am J Neuroradiol 2015; 36:1859-65. [PMID: 26294649 DOI: 10.3174/ajnr.a4378] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 02/19/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE A hyperintense appearance of the dentate nucleus on T1-weighted MR images has been related to various clinical conditions, but the etiology remains indeterminate. We aimed to investigate the possible associations between a hyperintense appearance of the dentate nucleus on T1-weighted MR images in patients exposed to radiation and factors including, but not limited to, the cumulative number of contrast-enhanced MR images, amount of gadolinium administration, dosage of ionizing radiation, and patient demographics. MATERIALS AND METHODS The medical records of 706 consecutive patients who were treated with brain irradiation at The Johns Hopkins Medical Institutions between 1995 and 2010 were blindly reviewed by 2 readers. RESULTS One hundred eighty-four subjects were included for dentate nuclei analysis. Among the 184 subjects who cumulatively underwent 2677 MR imaging studies following intravenous gadolinium administration, 103 patients had hyperintense dentate nuclei on precontrast T1-weighted MR images. The average number of gadolinium-enhanced MR imaging studies performed in the group with normal dentate nuclei was significantly lower than that of the group with hyperintense dentate nuclei. The average follow-up time was 62.5 months. No significant difference was observed between hyperintense and normal dentate nuclei groups in terms of exposed radiation dose, serum creatinine and calcium/phosphate levels, patient demographics, history of chemotherapy, and strength of the scanner. No dentate nuclei abnormalities were found on the corresponding CT scans of patients with hyperintense dentate nuclei (n = 44). No dentate nuclei abnormalities were found in 53 healthy volunteers. CONCLUSIONS Repeat performance of gadolinium-enhanced studies likely contributes to a long-standing hyperintense appearance of dentate nuclei on precontrast T1-weighted-MR images.
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Affiliation(s)
- M E Adin
- From the Division of Neuroradiology (M.E.A., E.Z., S.M., D.M.Y.), The Russell H. Morgan Department of Radiology and Radiological Science
| | - L Kleinberg
- Department of Radiation Oncology and Radiation Molecular Sciences (L.K.)
| | - D Vaidya
- Johns Hopkins Bloomberg School of Public Health (D.V.), The Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - E Zan
- From the Division of Neuroradiology (M.E.A., E.Z., S.M., D.M.Y.), The Russell H. Morgan Department of Radiology and Radiological Science
| | - S Mirbagheri
- From the Division of Neuroradiology (M.E.A., E.Z., S.M., D.M.Y.), The Russell H. Morgan Department of Radiology and Radiological Science
| | - D M Yousem
- From the Division of Neuroradiology (M.E.A., E.Z., S.M., D.M.Y.), The Russell H. Morgan Department of Radiology and Radiological Science
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Shen L, Yang A, Yao P, Sun X, Chen C, Mo C, Shi L, Chen Y, Liu Q. Gadolinium promoted proliferation in mouse embryo fibroblast NIH3T3 cells through Rac and PI3K/Akt signaling pathways. Biometals 2014; 27:753-62. [DOI: 10.1007/s10534-014-9769-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 06/25/2014] [Indexed: 11/25/2022]
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Spanakis M, Marias K. In silico evaluation of gadofosveset pharmacokinetics in different population groups using the Simcyp® simulator platform. In Silico Pharmacol 2014; 2:2. [PMID: 27502621 PMCID: PMC4644137 DOI: 10.1186/s40203-014-0002-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 05/26/2014] [Indexed: 01/10/2023] Open
Abstract
Purpose Gadofosveset is a Gd-based contrast agent used for magnetic resonance imaging (MRI). Gadolinium kinetic distribution models are implemented in T1-weighted dynamic contrast-enhanced perfusion MRI for characterization of lesion sites in the body. Physiology changes in a disease state potentially can influence the pharmacokinetics of drugs and to this respect modify the distribution properties of contrast agents. This work focuses on the in silico modelling of pharmacokinetic properties of gadofosveset in different population groups through the application of physiologically-based pharmacokinetic models (PBPK) embedded in Simcyp® population pharmacokinetics platform. Methods Physicochemical and pharmacokinetic properties of gadofosveset were introduced into Simcyp® simulator platform and a min-PBPK model was applied. In silico clinical trials were generated simulating the administration of the recommended dose for the contrast agent (i.v., 30 mg/kg) in population cohorts of healthy volunteers, obese, renal and liver impairment, and in a generated virtual oncology population. Results were evaluated regarding basic pharmacokinetic parameters of Cmax, AUC and systemic CL and differences were assessed through ANOVA and estimation of ratio of geometric mean between healthy volunteers and the other population groups. Results Simcyp® predicted a mean Cmax = 551.60 mg/l, a mean AUC = 4079.12 mg/L*h and a mean systemic CL = 0.56 L/h for the virtual population of healthy volunteers. Obese population showed a modulation in Cmax and CL, attributed to increased administered dose. In renal and liver impairment cohorts a significant modulation in Cmax, AUC and CL of gadofosveset is predicted. Oncology population exhibited statistical significant differences regarding AUC when compared with healthy volunteers. Conclusions This work employed Simcyp® population pharmacokinetics platform in order to compute gadofosveset’s pharmacokinetic profiles through PBPK models and in silico clinical trials and evaluate possible differences between population groups. The approach showed promising results that could provide new insights regarding administration of contrast agents in special population cohorts. In silico pharmacokinetics could further be used for evaluating of possible toxicity, interpretation of MRI PK image maps and development of novel contrast agents.
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Affiliation(s)
- Marios Spanakis
- Computational Medicine Laboratory, Institute of Computer Science, Foundation of Research & Technology-Hellas (FORTH), Heraklion, GR-71110, Crete, Greece.
| | - Kostas Marias
- Computational Medicine Laboratory, Institute of Computer Science, Foundation of Research & Technology-Hellas (FORTH), Heraklion, GR-71110, Crete, Greece.
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Cova MA, Stacul F, Quaranta R, Guastalla P, Salvatori G, Banderali G, Fonda C, David V, Gregori M, Zuppa AA, Davanzo R. Radiological contrast media in the breastfeeding woman: a position paper of the Italian Society of Radiology (SIRM), the Italian Society of Paediatrics (SIP), the Italian Society of Neonatology (SIN) and the Task Force on Breastfeeding, Ministry of Health, Italy. Eur Radiol 2014; 24:2012-22. [PMID: 24838733 DOI: 10.1007/s00330-014-3198-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 03/24/2014] [Accepted: 04/22/2014] [Indexed: 12/21/2022]
Abstract
OBJECTIVES Breastfeeding is a well-recognised investment in the health of the mother-infant dyad. Nevertheless, many professionals still advise breastfeeding mothers to temporarily discontinue breastfeeding after contrast media imaging. Therefore, we performed this review to provide health professionals with basic knowledge and skills for appropriate use of contrast media. METHODS A joint working group of the Italian Society of Radiology (SIRM), Italian Society of Paediatrics (SIP), Italian Society of Neonatology (SIN) and Task Force on Breastfeeding, Ministry of Health, Italy prepared a review of the relevant medical literature on the safety profile of contrast media for the nursing infant/child. RESULTS Breastfeeding is safe for the nursing infant of any post-conceptional age after administration of the majority of radiological contrast media to the mother; only gadolinium-based agents considered at high risk of nephrogenic systemic fibrosis (gadopentetate dimeglumine, gadodiamide, gadoversetamide) should be avoided in the breastfeeding woman as a precaution; there is no need to temporarily discontinue breastfeeding or to express and discard breast milk following the administration of contrast media assessed as compatible with breastfeeding. CONCLUSIONS Breastfeeding women should receive unambiguous professional advice and clear encouragement to continue breastfeeding after imaging with the compatible contrast media. KEY POINTS • Breastfeeding is a well-known investment in the health of the mother-infant dyad. • Breastfeeding is safe after administration of contrast media to the mother. • There is no need to temporarily discontinue breastfeeding following administration of contrast media.
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Affiliation(s)
- Maria Assunta Cova
- Department of Radiology, Cattinara Hospital, University of Trieste, Azienda Ospedaliero-Universitaria "Ospedali Riuniti" Trieste, Strada di Fiume 447, 34149, Trieste, Italy
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Wegscheid ML, Morshed RA, Cheng Y, Lesniak MS. The art of attraction: applications of multifunctional magnetic nanomaterials for malignant glioma. Expert Opin Drug Deliv 2014; 11:957-75. [PMID: 24766329 DOI: 10.1517/17425247.2014.912629] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Malignant gliomas remain one of medicine's most daunting unsolved clinical problems. The development of new technologies is urgently needed to improve the poor prognosis of patients suffering from these brain tumors. Magnetic nanomaterials are appealing due to unique properties that allow for noninvasive brain tumor diagnostics and therapeutics in one multifunctional platform. AREAS COVERED We report on the recent advances of magnetic nanomaterials for brain tumor imaging and therapy, with an emphasis on novel approaches and clinical progress. We detail their biomedical applications including brain tumor targeting, MRI contrast enhancement, optical imaging, magnetic hyperthermia, magnetomechanical destruction, drug delivery, gene therapy, as well as tracking of cell-based and viral-based therapies. The clinical cases and obstacles encountered in the use of magnetic nanomaterials for malignant glioma are also examined. EXPERT OPINION To accelerate the effective translation of these materials to the clinic as theranostics for brain tumors, limitations such as poor intratumoral distribution, targeting efficiency and nonspecific systemic side effects must be addressed. Future innovations should focus on optimizing and combining the unique therapeutic applications of these magnetic nanomaterials as well as improving the selectivity of the system based on the molecular profiling of tumors.
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Thomsen HS. Nephrogenic Systemic Fibrosis and Gadolinium-Based Contrast Media. MEDICAL RADIOLOGY 2014. [DOI: 10.1007/174_2013_903] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Stability and Trapping of Magnetic Resonance Imaging Contrast Agents During High-Intensity Focused Ultrasound Ablation Therapy. Invest Radiol 2013; 48:517-24. [DOI: 10.1097/rli.0b013e31829aae98] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fabritz S, Hörner S, Avrutina O, Kolmar H. Bioconjugation on cube-octameric silsesquioxanes. Org Biomol Chem 2013; 11:2224-36. [DOI: 10.1039/c2ob26807h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Wagner B, Tan C, Barnes JL, Ahuja S, Davis TL, Gorin Y, Jimenez F. Nephrogenic systemic fibrosis: evidence for oxidative stress and bone marrow-derived fibrocytes in skin, liver, and heart lesions using a 5/6 nephrectomy rodent model. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 181:1941-52. [PMID: 23041060 DOI: 10.1016/j.ajpath.2012.08.026] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 08/09/2012] [Accepted: 08/23/2012] [Indexed: 10/27/2022]
Abstract
Nephrogenic systemic fibrosis (NSF) is associated with gadolinium-based magnetic resonance imaging (MRI) contrast exposure in the setting of acute or chronic renal compromise. It has been proposed that circulating fibrocytes mediate the disease. A study was conducted to determine whether bone marrow-derived fibroblast precursors are involved in contributing to organ fibrosis in MRI contrast-treated rodents with renal insufficiency. Rats status post 5/6 nephrectomy underwent bone marrow transplant from human placental alkaline phosphatase (hPAP)-expressing donors. After engraftment, animals were treated with gadolinium-based MRI contrast (2.5 mmol/kg IP), during weekdays for 4 weeks, or an equivalent volume of normal saline. Dermal cellularity in the contrast-treated group was fourfold that of control. Skin cells from the contrast-treated group demonstrated greater hPAP expression with co-expression of pro-collagen I and α-smooth muscle actin-positive stress fibers. Donor and host cells expressed CD34. Dihydroethidium staining of skin was greater in the contrast-treated animals, indicating oxidative stress. This was abrogated when the animals were co-administered the superoxide dismutase mimetic tempol. In conclusion, a bone marrow-derived cell population is increased in the dermis of MRI contrast-treated rodents. The cell markers are consistent with fibrocytes mediating the disease. These changes correlate with oxidative stress and expression of Nox4, suggestive of a novel therapeutic target. Elucidation of the mechanisms of MRI contrast-induced fibrosis may aid in discovering therapies to this devastating disease.
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Affiliation(s)
- Brent Wagner
- VA Research, South Texas Veterans Health Care System, University of Texas Health Science Center at San Antonio, TX 78229, USA.
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Ota T, Kimura J, Ishiguchi T. Safety and clinical usefulness of gadoteric acid including post-marketing surveillance. ACTA ACUST UNITED AC 2012. [DOI: 10.2217/iim.12.34] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nduom EK, Bouras A, Kaluzova M, Hadjipanayis CG. Nanotechnology applications for glioblastoma. Neurosurg Clin N Am 2012; 23:439-49. [PMID: 22748656 DOI: 10.1016/j.nec.2012.04.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Glioblastoma remains one of the most difficult cancers to treat and represents the most common primary malignancy of the brain. Although conventional treatments have found modest success in reducing the initial tumor burden, infiltrating cancer cells beyond the main mass are responsible for tumor recurrence and ultimate patient demise. Targeting residual infiltrating cancer cells requires the development of new treatment strategies. The emerging field of cancer nanotechnology holds promise in the use of multifunctional nanoparticles for imaging and targeted therapy of glioblastoma. This article examines the current state of nanotechnology in the treatment of glioblastoma and directions of further study.
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Affiliation(s)
- Edjah K Nduom
- Department of Neurosurgery, Emory University School of Medicine, Winship Cancer Institute of Emory University, Atlanta, GA 30322, USA
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Wilkinson L, Kurniawan ND, Phua YL, Nguyen MJ, Li J, Galloway GJ, Hashitani H, Lang RJ, Little MH. Association between congenital defects in papillary outgrowth and functional obstruction in Crim1 mutant mice. J Pathol 2012; 227:499-510. [PMID: 22488641 DOI: 10.1002/path.4036] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 03/09/2012] [Accepted: 03/29/2012] [Indexed: 12/25/2022]
Abstract
Crim1 hypomorphic (Crim1(KST264/KST264)) mice display progressive renal disease characterized by glomerular defects, leaky peritubular vasculature, and progressive interstitial fibrosis. Here we show that 27% of these mice also present with hydronephrosis, suggesting obstructive nephropathy. Dynamic magnetic resonance imaging using Magnevist showed fast development of hypo-intense signal in the kidneys of Crim1(KST264/KST264) mice, suggesting pooling of filtrate within the renal parenchyma. Rhodamine dextran (10 kDa) clearance was also delayed in Crim1(KST264/KST264) mice. Pyeloureteric peristalsis, while present, was less co-ordinated in Crim1(KST264/KST264) mice. However, isolated renal pelvis preparations suggest normal pelvic smooth muscle contractile responses. An analysis of maturation during the immediate postnatal period [postnatal day (P) 0-15] revealed defects in papillary extension in Crim1({KST264/KST264) mice. While Crim1 expression is weak in pelvic smooth muscle, strong expression is seen in the interstitium and loops of Henle of the extending papilla, commencing at the tip of the P1 papilla and disseminating throughout the papilla by P15. These results, as well as implicating Crim1 in papillary extension and pelvic smooth muscle contractility, highlight the previously unrecognized association between defects in papillary development and progression to chronic kidney disease later in life.
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Affiliation(s)
- Lorine Wilkinson
- Institute for Molecular Bioscience, The University of Queensland, QLD 4072, Australia
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Wankhede M, Bouras A, Kaluzova M, Hadjipanayis CG. Magnetic nanoparticles: an emerging technology for malignant brain tumor imaging and therapy. Expert Rev Clin Pharmacol 2012; 5:173-86. [PMID: 22390560 PMCID: PMC3461264 DOI: 10.1586/ecp.12.1] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Magnetic nanoparticles (MNPs) represent a promising nanomaterial for the targeted therapy and imaging of malignant brain tumors. Conjugation of peptides or antibodies to the surface of MNPs allows direct targeting of the tumor cell surface and potential disruption of active signaling pathways present in tumor cells. Delivery of nanoparticles to malignant brain tumors represents a formidable challenge due to the presence of the blood-brain barrier and infiltrating cancer cells in the normal brain. Newer strategies permit better delivery of MNPs systemically and by direct convection-enhanced delivery to the brain. Completion of a human clinical trial involving direct injection of MNPs into recurrent malignant brain tumors for thermotherapy has established their feasibility, safety and efficacy in patients. Future translational studies are in progress to understand the promising impact of MNPs in the treatment of malignant brain tumors.
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Affiliation(s)
- Mamta Wankhede
- Brain Tumor Nanotechnology Laboratory, Department of Neurosurgery, Emory University School of Medicine, Winship Cancer Institute of Emory University, 1365B Clifton Road NE, Suite 6200, Atlanta, GA 30322, USA
| | - Alexandros Bouras
- Brain Tumor Nanotechnology Laboratory, Department of Neurosurgery, Emory University School of Medicine, Winship Cancer Institute of Emory University, 1365B Clifton Road NE, Suite 6200, Atlanta, GA 30322, USA
| | - Milota Kaluzova
- Brain Tumor Nanotechnology Laboratory, Department of Neurosurgery, Emory University School of Medicine, Winship Cancer Institute of Emory University, 1365B Clifton Road NE, Suite 6200, Atlanta, GA 30322, USA
| | - Costas G Hadjipanayis
- Brain Tumor Nanotechnology Laboratory, Department of Neurosurgery, Emory University School of Medicine, Winship Cancer Institute of Emory University, 1365B Clifton Road NE, Suite 6200, Atlanta, GA 30322, USA
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