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Sharma S, Kalyani N, Dutta T, Velázquez-González JS, Llamas-Garro I, Ung B, Bas J, Dubey R, Mishra SK. Optical Devices for the Diagnosis and Management of Spinal Cord Injuries: A Review. BIOSENSORS 2024; 14:296. [PMID: 38920599 PMCID: PMC11201428 DOI: 10.3390/bios14060296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/21/2024] [Accepted: 06/02/2024] [Indexed: 06/27/2024]
Abstract
Throughout the central nervous system, the spinal cord plays a very important role, namely, transmitting sensory and motor information inwardly so that it can be processed by the brain. There are many different ways this structure can be damaged, such as through traumatic injury or surgery, such as scoliosis correction, for instance. Consequently, damage may be caused to the nervous system as a result of this. There is no doubt that optical devices such as microscopes and cameras can have a significant impact on research, diagnosis, and treatment planning for patients with spinal cord injuries (SCIs). Additionally, these technologies contribute a great deal to our understanding of these injuries, and they are also essential in enhancing the quality of life of individuals with spinal cord injuries. Through increasingly powerful, accurate, and minimally invasive technologies that have been developed over the last decade or so, several new optical devices have been introduced that are capable of improving the accuracy of SCI diagnosis and treatment and promoting a better quality of life after surgery. We aim in this paper to present a timely overview of the various research fields that have been conducted on optical devices that can be used to diagnose spinal cord injuries as well as to manage the associated health complications that affected individuals may experience.
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Affiliation(s)
- Sonika Sharma
- Department of Physics, Graphic Era Hill University, Dehradun 248002, Uttarakhand, India;
| | - Neeti Kalyani
- Department of Biotechnology and Biomedicine, Denmark Technical University, 2800 Kongens Lyngby, Denmark;
| | - Taposhree Dutta
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howarh 711103, West Bengal, India;
| | - Jesús Salvador Velázquez-González
- Navigation and Positioning, Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain; (J.S.V.-G.); (I.L.-G.)
| | - Ignacio Llamas-Garro
- Navigation and Positioning, Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain; (J.S.V.-G.); (I.L.-G.)
| | - Bora Ung
- Electrical Engineering Department, Ecole de Technologie Superieure, Montreal, QC H3C 1K3, Canada;
| | - Joan Bas
- Space and Resilient Communications and Systems (SRCOM), Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain;
| | - Rakesh Dubey
- Institute of Physics, University of Szczecin, 70-453 Szczecin, Poland;
| | - Satyendra K. Mishra
- Space and Resilient Communications and Systems (SRCOM), Center Technologic de Telecomunicacions de Catalunya (CTTC), Avinguda Carl Friedrich Gauss, 11, 08860 Castelldefels, Spain;
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2
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Gordon J, Borlongan CV. An update on stem cell therapy for stroke patients: Where are we now? J Cereb Blood Flow Metab 2024:271678X241227022. [PMID: 38639015 DOI: 10.1177/0271678x241227022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
With a foundation built upon initial work from the 1980s demonstrating graft viability in cerebral ischemia, stem cell transplantation has shown immense promise in promoting survival, enhancing neuroprotection and inducing neuroregeneration, while mitigating both histological and behavioral deficits that frequently accompany ischemic stroke. These findings have led to a number of clinical trials that have thoroughly supported a strong safety profile for stem cell therapy in patients but have generated variable efficacy. As preclinical evidence continues to expand through the investigation of new cell lines and optimization of stem cell delivery, it remains critical for translational models to adhere to the protocols established through basic scientific research. With the recent shift in approach towards utilization of stem cells as a conjunctive therapy alongside standard thrombolytic treatments, key issues including timing, route of administration, and stem cell type must each be appropriately translated from the laboratory in order to resolve the question of stem cell efficacy for cerebral ischemia that ultimately will enhance therapeutics for stroke patients towards improving quality of life.
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Affiliation(s)
- Jonah Gordon
- Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
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3
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Huang Y, Hsu JC, Koo H, Cormode DP. Repurposing ferumoxytol: Diagnostic and therapeutic applications of an FDA-approved nanoparticle. Am J Cancer Res 2022; 12:796-816. [PMID: 34976214 PMCID: PMC8692919 DOI: 10.7150/thno.67375] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/12/2021] [Indexed: 02/07/2023] Open
Abstract
Ferumoxytol is an intravenous iron oxide nanoparticle formulation that has been approved by the U.S. Food and Drug Administration (FDA) for treating anemia in patients with chronic kidney disease. In recent years, ferumoxytol has also been demonstrated to have potential for many additional biomedical applications due to its excellent inherent physical properties, such as superparamagnetism, biocatalytic activity, and immunomodulatory behavior. With good safety and clearance profiles, ferumoxytol has been extensively utilized in both preclinical and clinical studies. Here, we first introduce the medical needs and the value of current iron oxide nanoparticle formulations in the market. We then focus on ferumoxytol nanoparticles and their physicochemical, diagnostic, and therapeutic properties. We include examples describing their use in various biomedical applications, including magnetic resonance imaging (MRI), multimodality imaging, iron deficiency treatment, immunotherapy, microbial biofilm treatment and drug delivery. Finally, we provide a brief conclusion and offer our perspectives on the current limitations and emerging applications of ferumoxytol in biomedicine. Overall, this review provides a comprehensive summary of the developments of ferumoxytol as an agent with diagnostic, therapeutic, and theranostic functionalities.
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4
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Friedrich RP, Cicha I, Alexiou C. Iron Oxide Nanoparticles in Regenerative Medicine and Tissue Engineering. NANOMATERIALS 2021; 11:nano11092337. [PMID: 34578651 PMCID: PMC8466586 DOI: 10.3390/nano11092337] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 12/13/2022]
Abstract
In recent years, many promising nanotechnological approaches to biomedical research have been developed in order to increase implementation of regenerative medicine and tissue engineering in clinical practice. In the meantime, the use of nanomaterials for the regeneration of diseased or injured tissues is considered advantageous in most areas of medicine. In particular, for the treatment of cardiovascular, osteochondral and neurological defects, but also for the recovery of functions of other organs such as kidney, liver, pancreas, bladder, urethra and for wound healing, nanomaterials are increasingly being developed that serve as scaffolds, mimic the extracellular matrix and promote adhesion or differentiation of cells. This review focuses on the latest developments in regenerative medicine, in which iron oxide nanoparticles (IONPs) play a crucial role for tissue engineering and cell therapy. IONPs are not only enabling the use of non-invasive observation methods to monitor the therapy, but can also accelerate and enhance regeneration, either thanks to their inherent magnetic properties or by functionalization with bioactive or therapeutic compounds, such as drugs, enzymes and growth factors. In addition, the presence of magnetic fields can direct IONP-labeled cells specifically to the site of action or induce cell differentiation into a specific cell type through mechanotransduction.
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5
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Mousa AH, Agha Mohammad S, Rezk HM, Muzaffar KH, Alshanberi AM, Ansari SA. Nanoparticles in traumatic spinal cord injury: therapy and diagnosis. F1000Res 2021. [DOI: 10.12688/f1000research.55472.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Nanotechnology has been previously employed for constructing drug delivery vehicles, biosensors, solar cells, lubricants and as antimicrobial agents. The advancement in synthesis procedure makes it possible to formulate nanoparticles (NPs) with precise control over physico-chemical and optical properties that are desired for specific clinical or biological applications. The surface modification technology has further added impetus to the specific applications of NPs by providing them with desirable characteristics. Hence, nanotechnology is of paramount importance in numerous biomedical and industrial applications due to their biocompatibility and stability even in harsh environments. Traumatic spinal cord injuries (TSCIs) are one of the major traumatic injuries that are commonly associated with severe consequences to the patient that may reach to the point of paralysis. Several processes occurring at a biochemical level which exacerbate the injury may be targeted using nanotechnology. This review discusses possible nanotechnology-based approaches for the diagnosis and therapy of TSCI, which have a bright future in clinical practice.
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6
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Kubelick KP, Emelianov SY. A Trimodal Ultrasound, Photoacoustic and Magnetic Resonance Imaging Approach for Longitudinal Post-operative Monitoring of Stem Cells in the Spinal Cord. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:3468-3474. [PMID: 32988671 PMCID: PMC7709928 DOI: 10.1016/j.ultrasmedbio.2020.08.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/10/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Longitudinal monitoring of stem cells in the spinal cord could unveil critical information needed to understand regenerative processes, thereby expediting therapy development and translation. We introduce a post-operative trimodal imaging approach to monitor stem cells in the spinal cord over time. A key aspect of the approach is to label the stem cells with Prussian blue nanocubes (PBNCs), which simultaneously possess optical and magnetic properties for ultrasound-guided photoacoustic (US/PA) and magnetic resonance imaging (MRI) contrast. PBNC-Labeled stem cells were injected into the spinal cord of immunodeficient rats and tracked with US/PA imaging and MRI up to 14 d post-injection. Good agreement was observed between imaging modalities in vivo. Our results suggest that further development of the US/PA/MR imaging approach may create a powerful tool to aid development of regenerative therapies of the spinal cord, and the non-invasive imaging approach can ultimately be deployed in intra- and post-operative environments.
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Affiliation(s)
- Kelsey P Kubelick
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia, USA; School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA.
| | - Stanislav Y Emelianov
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, Atlanta, Georgia, USA; School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA.
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7
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McGinley LM, Willsey MS, Kashlan ON, Chen KS, Hayes JM, Bergin IL, Mason SN, Stebbins AW, Kwentus JF, Pacut C, Kollmer J, Sakowski SA, Bell CB, Chestek CA, Murphy GG, Patil PG, Feldman EL. Magnetic resonance imaging of human neural stem cells in rodent and primate brain. Stem Cells Transl Med 2020; 10:83-97. [PMID: 32841522 PMCID: PMC7780819 DOI: 10.1002/sctm.20-0126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/03/2020] [Accepted: 07/27/2020] [Indexed: 12/11/2022] Open
Abstract
Stem cell transplantation therapies are currently under investigation for central nervous system disorders. Although preclinical models show benefit, clinical translation is somewhat limited by the absence of reliable noninvasive methods to confirm targeting and monitor transplanted cells in vivo. Here, we assess a novel magnetic resonance imaging (MRI) contrast agent derived from magnetotactic bacteria, magneto‐endosymbionts (MEs), as a translatable methodology for in vivo tracking of stem cells after intracranial transplantation. We show that ME labeling provides robust MRI contrast without impairment of cell viability or other important therapeutic features. Labeled cells were visualized immediately post‐transplantation and over time by serial MRI in nonhuman primate and mouse brain. Postmortem tissue analysis confirmed on‐target grft location, and linear correlations were observed between MRI signal, cell engraftment, and tissue ME levels, suggesting that MEs may be useful for determining graft survival or rejection. Overall, these findings indicate that MEs are an effective tool for in vivo tracking and monitoring of cell transplantation therapies with potential relevance to many cellular therapy applications.
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Affiliation(s)
- Lisa M McGinley
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Matthew S Willsey
- Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Osama N Kashlan
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA.,Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Kevin S Chen
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA.,Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, USA
| | - John M Hayes
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Ingrid L Bergin
- Unit for Laboratory Animal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Shayna N Mason
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Aaron W Stebbins
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Crystal Pacut
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Jennifer Kollmer
- Department of Neuroradiology, University Hospital Heidelberg, Heidelberg, Germany
| | - Stacey A Sakowski
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Caleb B Bell
- Bell Biosystems, San Francisco, California, USA.,G4S Capital & Ikigai Accelerator, Santa Clara, California, USA
| | - Cynthia A Chestek
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA.,Department of Electrical Engineering, University of Michigan, Ann Arbor, Michigan, USA.,Neuroscience and Robotics Graduate Program, University of Michigan, Ann Arbor, Michigan, USA
| | - Geoffrey G Murphy
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Michigan, USA.,Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, Michigan, USA
| | - Parag G Patil
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA.,Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Eva L Feldman
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
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8
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Kubelick KP, Emelianov SY. In vivo photoacoustic guidance of stem cell injection and delivery for regenerative spinal cord therapies. NEUROPHOTONICS 2020; 7:030501. [PMID: 32743015 PMCID: PMC7388074 DOI: 10.1117/1.nph.7.3.030501] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 07/14/2020] [Indexed: 05/16/2023]
Abstract
Significance: Stem cell therapies are of interest for treating a variety of neurodegenerative diseases and injuries of the spinal cord. However, the lack of techniques for longitudinal monitoring of stem cell therapy progression is inhibiting clinical translation. Aim: The goal of this study is to demonstrate an intraoperative imaging approach to guide stem cell injection to the spinal cord in vivo. Results may ultimately support the development of an imaging tool that spans intra- or postoperative environments to guide therapy throughout treatment. Approach: Stem cells were labeled with Prussian blue nanocubes (PBNCs) to facilitate combined ultrasound and photoacoustic (US/PA) imaging to visualize stem cell injection and delivery to the spinal cord in vivo. US/PA results were confirmed by magnetic resonance imaging (MRI) and histology. Results: Real-time intraoperative US/PA image-guided injection of PBNC-labeled stem cells and three-dimensional volumetric images of injection provided feedback necessary for successful delivery of therapeutics into the spinal cord. Postoperative MRI confirmed delivery of PBNC-labeled stem cells. Conclusions: The nanoparticle-augmented US/PA approach successfully detected injection and delivery of stem cells into the spinal cord, confirmed by MRI. Our work demonstrated in vivo feasibility, which is a critical step toward the development of a US/PA/MRI platform to monitor regenerative spinal cord therapies.
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Affiliation(s)
- Kelsey P. Kubelick
- Georgia Institute of Technology, Emory University School of Medicine, Wallace H. Coulter Department of Biomedical Engineering, Atlanta, Georgia, United States
- Georgia Institute of Technology, School of Electrical and Computer Engineering, Atlanta, Georgia, United States
| | - Stanislav Y. Emelianov
- Georgia Institute of Technology, Emory University School of Medicine, Wallace H. Coulter Department of Biomedical Engineering, Atlanta, Georgia, United States
- Georgia Institute of Technology, School of Electrical and Computer Engineering, Atlanta, Georgia, United States
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9
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Kubelick KP, Emelianov SY. Prussian blue nanocubes as a multimodal contrast agent for image-guided stem cell therapy of the spinal cord. PHOTOACOUSTICS 2020; 18:100166. [PMID: 32211291 PMCID: PMC7082547 DOI: 10.1016/j.pacs.2020.100166] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 01/20/2020] [Accepted: 02/03/2020] [Indexed: 05/16/2023]
Abstract
Translation of stem cell therapies to treat injuries and diseases of the spinal cord is hindered by lack of real-time monitoring techniques to guide regenerative therapies intra- and postoperatively. Thus, we developed an ultrasound (US), photoacoustic (PA), and magnetic resonance (MR) imaging approach augmented with Prussian blue nanocubes (PBNCs) to guide stem cell injections intraoperatively and monitor stem cell therapies in the spinal cord postoperatively. Per the clinical procedure, a multi-level laminectomy was performed in rats ex vivo, and PBNC-labeled stem cells were injected directly into the spinal cord while US/PA images were acquired. US/PA/MR images were also acquired post-surgery. Several features of the imaging approach were demonstrated including detection of low stem cell concentrations, real-time needle guidance and feedback on stem cell delivery, and good agreement between US/PA/MR images. These benefits span intra- and postoperative environments to support future development of this imaging tool.
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Key Words
- AuNS, gold nanosphere
- DIUF, deionized ultra-filtered water
- IACUC, Institutional Animal Care and Use Committee
- LOD, limit of detection
- MRI, magnetic resonance imaging
- MSC, mesenchymal stem cell
- Magnetic resonance imaging
- Multimodal imaging
- Nanoparticles
- OR, operating room
- PA, photoacoustic
- PBNC, Prussian blue nanocube
- PBS, phosphate buffered saline
- Photoacoustic imaging
- SPION, superparamagnetic iron oxide nanoparticle
- Spinal cord
- Stem cells
- TE, echo time
- TEM, transmission electron microscopy
- TR, repetition time
- US, ultrasound
- Ultrasound
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Affiliation(s)
- Kelsey P Kubelick
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, 777 Atlantic Drive, Atlanta, GA, 30332, USA
| | - Stanislav Y Emelianov
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University School of Medicine, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, 777 Atlantic Drive, Atlanta, GA, 30332, USA
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10
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Chen B, Guo Z, Guo C, Mao Y, Qin Z, Ye D, Zang F, Lou Z, Zhang Z, Li M, Liu Y, Ji M, Sun J, Gu N. Moderate cooling coprecipitation for extremely small iron oxide as a pH dependent T 1-MRI contrast agent. NANOSCALE 2020; 12:5521-5532. [PMID: 32091066 DOI: 10.1039/c9nr10397j] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Iron based nanomedicine (IBNM) has been one powerful diagnostic tool as a magnetic resonance imaging (MRI) contrast agent (CA) in the clinic for years. Conventional IBNMs are generally employed as T2-MRI CAs, but most of them are constrained in clinical indication expansion by magnetic susceptibility artifacts. In comparison, extremely small iron oxide (ESIO) with a core size less than 5 nm has demonstrated the T1-MRI effect, which provides prospects for a Gd-based agent alternative. Nevertheless, currently developed ESIOs for T1-MRI CAs always require harsh conditions such as a high temperature and high boiling point reagent. Moreover, very few of the currently developed ESIOs meet the stringent pharmaceutical standard. Herein, on the basis of a crystal nuclear precipitation-dissolution equilibrium mechanism and outer/inner sphere T1-MRI theory, monodisperse ESIOs with an average size of 3.43 nm (polydispersity index of 0.104) are fabricated using a moderate cooling procedure with mild coprecipitation reaction conditions. The as-synthesized ESIOs display around 3-fold higher T1 MRI signal intensity than that of commercial Ferumoxytol (FMT), comparable to that of Gd-based CAs in vitro. Additionally, the T1-MRI performance of the ESIOs is pH dependent and delivers bright signal augmentation. Eventually, the internalization into mesenchymal stem cells of the ESIO is realized in the absence of a transferring agent. Considering the identical structure and composition of the ESIOs as compared to that of FMT, they could meet the pharmaceutical criteria, thus providing great potential as T1-MRI Cas, for instance as stem cell tracers.
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Affiliation(s)
- Bo Chen
- Materials Science and Devices Institute, Suzhou University of Science and Technology, 1 Kerui Road, Suzhou 215009, Jiangsu, China
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11
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Mori Y. [17. Live Cellular Imaging and Tracking by High Field MRI]. Nihon Hoshasen Gijutsu Gakkai Zasshi 2019; 75:676-682. [PMID: 31327779 DOI: 10.6009/jjrt.2019_jsrt_75.7.676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuki Mori
- Center for Translational Neuromedicine,University of Copenhagen
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12
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Borlongan CV. Concise Review: Stem Cell Therapy for Stroke Patients: Are We There Yet? Stem Cells Transl Med 2019; 8:983-988. [PMID: 31099181 PMCID: PMC6708064 DOI: 10.1002/sctm.19-0076] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 05/03/2019] [Indexed: 12/14/2022] Open
Abstract
Four decades of preclinical research demonstrating survival, functional integration, and behavioral effects of transplanted stem cells in experimental stroke models have provided ample scientific basis for initiating limited clinical trials of stem cell therapy in stroke patients. Although safety of the grafted cells has been overwhelmingly documented, efficacy has not been forthcoming. Two recently concluded stroke clinical trials on mesenchymal stem cells (MSCs) highlight the importance of strict adherence to the basic science findings of optimal transplant regimen of cell dose, timing, and route of delivery in enhancing the functional outcomes of cell therapy. Echoing the Stem Cell Therapeutics as an Emerging Paradigm for Stroke and Stroke Treatment Academic Industry Roundtable call for an NIH‐guided collaborative consortium of multiple laboratories in testing the safety and efficacy of stem cells and their derivatives, not just as stand‐alone but preferably in combination with approved thrombolytic or thrombectomy, may further increase the likelihood of successful fruition of translating stem cell therapy for stroke clinical application. The laboratory and clinical experience with MSC therapy for stroke may guide the future translational research on stem cell‐based regenerative medicine in neurological disorders. stem cells translational medicine2019;8:983&988
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Affiliation(s)
- Cesario V Borlongan
- Center of Excellence for Aging and Brain Repair, Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, Florida, USA
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13
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Donnelly EM, Kubelick KP, Dumani DS, Emelianov SY. Photoacoustic Image-Guided Delivery of Plasmonic-Nanoparticle-Labeled Mesenchymal Stem Cells to the Spinal Cord. NANO LETTERS 2018; 18:6625-6632. [PMID: 30160124 DOI: 10.1021/acs.nanolett.8b03305] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Regenerative therapies using stem cells have great potential for treating neurodegenerative diseases and traumatic injuries in the spinal cord. In spite of significant research efforts, many therapies fail at the clinical phase. As stem cell technologies advance toward clinical use, there is a need for a minimally invasive, safe, affordable, and real-time imaging technique that allows for the accurate and safe monitoring of stem cell delivery in the operating room. In this work, we present a combined ultrasound and photoacoustic imaging tool to provide image-guided needle placement and monitoring of nanoparticle-labeled stem cell delivery into the spinal cord. We successfully tagged stem cells using gold nanospheres and provided image-guided delivery of stem cells into the spinal cord in real-time, detecting as few as 1000 cells. Ultrasound and photoacoustic imaging was used to guide needle placement for direct stem cell injection to minimize the risk of needle shear and accidental injury and to improve therapeutic outcomes with accurate, localized stem cell delivery. Following injections of various volumes of cells, three-dimensional ultrasound and photoacoustic images allowed the visualization of stem cell distribution along the spinal cord, showing the potential to monitor the migration of the cells in the future. The feasibility of quantitative imaging was also shown by correlating the total photoacoustic signal over the imaging volume to the volume of cells injected. Overall, the presented method may allow clinicians to utilize imaged-guided delivery for more accurate and safer stem cell delivery to the spinal cord.
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Affiliation(s)
- Eleanor M Donnelly
- School of Electrical and Computer Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
| | - Kelsey P Kubelick
- Wallace H. Coulter Department of Biomedical Engineering , Georgia Institute of Technology and Emory University School of Medicine , Atlanta , Georgia 30332 , United States
| | - Diego S Dumani
- School of Electrical and Computer Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
- Wallace H. Coulter Department of Biomedical Engineering , Georgia Institute of Technology and Emory University School of Medicine , Atlanta , Georgia 30332 , United States
| | - Stanislav Y Emelianov
- School of Electrical and Computer Engineering , Georgia Institute of Technology , Atlanta , Georgia 30332 , United States
- Wallace H. Coulter Department of Biomedical Engineering , Georgia Institute of Technology and Emory University School of Medicine , Atlanta , Georgia 30332 , United States
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14
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Chen B, Sun J, Fan F, Zhang X, Qin Z, Wang P, Li Y, Zhang X, Liu F, Liu Y, Ji M, Gu N. Ferumoxytol of ultrahigh magnetization produced by hydrocooling and magnetically internal heating co-precipitation. NANOSCALE 2018; 10:7369-7376. [PMID: 29644371 DOI: 10.1039/c8nr00736e] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ferumoxytol, which is originally intended for MRI and anemia treatment, is currently the only inorganic nanodrug approved by FDA for clinical application in vivo. Common ferumoxytol seems incapable of meeting the requirements for diverse applications. Thus, the development of a novel strategy based on co-precipitation to produce ferumoxytol with high quality is an imminent task. Herein, we proposed a physically assisted strategy, namely hydrocooling and magnetically internal heating co-precipitation, to optimize the properties of ferumoxytol and thus significantly enhance its magnetic performance. Magnetization of the newly developed ferumoxytol can reach 104-105 emu g-1 Fe, which is the highest value among the reported results. It has been found that the crystalline structures of the newly developed ferumoxytol have been greatly improved on the basis of pharmaceutical quality criteria.
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Affiliation(s)
- Bo Chen
- Jiangsu Key Laboratory for Biomaterials and Devices, Department of Biological Science and Medical Engineering, Southeast University, Nanjing 210009, P. R. China.
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15
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Shen S, Ding W, Ahmed S, Hu R, Opalacz A, Roth S, You Z, Wotjkiewicz GR, Lim G, Chen L, Mao J, Chen JW, Zhang Y. Ultrasmall Superparamagnetic Iron Oxide Imaging Identifies Tissue and Nerve Inflammation in Pain Conditions. PAIN MEDICINE (MALDEN, MASS.) 2018; 19:686-692. [PMID: 29177411 PMCID: PMC6659016 DOI: 10.1093/pm/pnx267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Objective Correlation between radiologic structural abnormalities and clinical symptoms in low back pain patients is poor. There is an unmet clinical need to image inflammation in pain conditions to aid diagnosis and guide treatment. Ferumoxytol, an ultrasmall superparamagnetic iron oxide (USPIO) nanoparticle, is clinically used to treat iron deficiency anemia and showed promise in imaging tissue inflammation in human. We explored whether ferumoxytol can be used to identify tissue and nerve inflammation in pain conditions in animals and humans. Methods Complete Freud's adjuvant (CFA) or saline was injected into mice hind paws to establish an inflammatory pain model. Ferumoxytol (20 mg/kg) was injected intravenously. Magnetic resonance imaging (MRI) was performed prior to injection and 72 hours postinjection. The changes in the transverse relaxation time (T2) before and after ferumoxytol injection were compared between mice that received CFA vs saline injection. In the human study, we administered ferumoxytol (4 mg/kg) to a human subject with clinical symptoms of lumbar radiculopathy and compared the patient with a healthy subject. Results Mice that received CFA exhibited tissue inflammation and pain behaviors. The changes in T2 before and after ferumoxytol injection were significantly higher in mice that received CFA vs saline (20.8 ± 3.6 vs 2.2 ± 2.5, P = 0.005). In the human study, ferumoxytol-enhanced MRI identified the nerve root corresponding to the patient's symptoms, but the nerve root was not impinged by structural abnormalities, suggesting the potential superiority of this approach over conventional structural imaging techniques. Conclusions Ferumoxytol-enhanced MRI can identify tissue and nerve inflammation and may provide a promising diagnostic tool in assessing pain conditions in humans.
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Affiliation(s)
- Shiqian Shen
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Weihua Ding
- Department of Anesthesia and Pain Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Shihab Ahmed
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ranliang Hu
- Department of Radiology and Imaging Sciences, Emory University Hospital, Atlanta, Georgia
| | - Arissa Opalacz
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Sarah Roth
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Zerong You
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gregory R Wotjkiewicz
- Department of Radiology, Institute for Innovation in Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Grewo Lim
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lucy Chen
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jianren Mao
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - John W Chen
- Department of Radiology, Institute for Innovation in Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Yi Zhang
- Department of Anesthesia, Critical Care and Pain Medicine, MGH Center for Translational Pain Research, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Lamanna JJ, Gutierrez J, Espinosa JR, Wagner J, Urquia LN, Moreton C, Victor Hurtig C, Tora M, Kirk AD, Federici T, Boulis NM. Peripheral blood detection of systemic graft-specific xeno-antibodies following transplantation of human neural progenitor cells into the porcine spinal cord. J Clin Neurosci 2017; 48:173-180. [PMID: 29089163 DOI: 10.1016/j.jocn.2017.10.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 10/10/2017] [Indexed: 12/17/2022]
Abstract
Extensive pre-clinical and clinical studies have searched for therapeutic efficacy of cell-based therapeutics in diseases of the Central Nervous System (CNS) with no other viable options. Allogeneic cells represent the primary source of these therapies and immunosuppressive regimens have been empirically employed based on experience with solid organ transplantation, attempting to avoid immune mediated graft rejection. In this study, we aimed to 1) characterize the host immune response to stem cells transplanted into the CNS and 2) develop a non-invasive method for detecting immune response to transplanted cell grafts. Human neural progenitor cells were transplanted into the spinal cord of 10 Göttingen minipigs, of which 5 received no immunosuppression and 5 received Tacrolimus. Peripheral blood samples were collected longitudinally for flow cytometry cross match studies. Necropsy was performed at day 21 and spinal cord tissue analysis. We observed a transient increase in xeno-reactive antibodies was detected on post-operative day 7 and 14 in pigs that did not receive immunosuppression. This response was not detected in pigs that received Tacrolimus immunosuppression. No difference in graft survival was observed between the groups. Infiltration of numerous immune mediators including granulocytes, T lymphocytes, and activated microglia, and complement deposition were detected. In summary, a systemic immunologic response to stem cell grafts was detected for two weeks after transplantation using peripheral blood. This could be used as a non-invasive biomarker by investigators for detection of immunologic rejection. However, the absence of a detectable response in peripheral blood does not rule out a parenchymal immune response.
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Affiliation(s)
- Jason J Lamanna
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA; Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA 30322, USA.
| | - Juanmarco Gutierrez
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA.
| | - Jaclyn R Espinosa
- Department of Surgery, School of Medicine, Emory University, Atlanta, GA 30322, USA; Department of Surgery, Duke University, Durham, NC 27710, USA.
| | - Jacob Wagner
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA.
| | - Lindsey N Urquia
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA.
| | - Cheryl Moreton
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA.
| | - C Victor Hurtig
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA.
| | - Muhibullah Tora
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA; Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA 30322, USA.
| | - Allan D Kirk
- Department of Surgery, Duke University, Durham, NC 27710, USA.
| | - Thais Federici
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA.
| | - Nicholas M Boulis
- Department of Neurosurgery, School of Medicine, Emory University, 101 Woodruff Circle, Room 6339, Atlanta, GA 30322, USA; Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA 30322, USA.
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