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Zhang L, Ma M, Li J, Qiao K, Xie Y, Zheng Y. Stimuli-responsive microcarriers and their application in tissue repair: A review of magnetic and electroactive microcarrier. Bioact Mater 2024; 39:147-162. [PMID: 38808158 PMCID: PMC11130597 DOI: 10.1016/j.bioactmat.2024.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/07/2024] [Accepted: 05/07/2024] [Indexed: 05/30/2024] Open
Abstract
Microcarrier applications have made great advances in tissue engineering in recent years, which can load cells, drugs, and bioactive factors. These microcarriers can be minimally injected into the defect to help reconstruct a good microenvironment for tissue repair. In order to achieve more ideal performance and face more complex tissue damage, an increasing amount of effort has been focused on microcarriers that can actively respond to external stimuli. These microcarriers have the functions of directional movement, targeted enrichment, material release control, and providing signals conducive to tissue repair. Given the high controllability and designability of magnetic and electroactive microcarriers, the research progress of these microcarriers is highlighted in this review. Their structure, function and applications, potential tissue repair mechanisms, and challenges are discussed. In summary, through the design with clinical translation ability, meaningful and comprehensive experimental characterization, and in-depth study and application of tissue repair mechanisms, stimuli-responsive microcarriers have great potential in tissue repair.
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Affiliation(s)
- LiYang Zhang
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Mengjiao Ma
- Beijing Wanjie Medical Device Co., Ltd, Beijing, China
| | - Junfei Li
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Kun Qiao
- Beijing Gerecov Technology Company Ltd., Beijing, China
| | - Yajie Xie
- Beijing Gerecov Technology Company Ltd., Beijing, China
| | - Yudong Zheng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
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Hambarde S, Nguyen L, Manalo J, John B, Baskin DS, Helekar SA. Method for noninvasive whole-body stimulation with spinning oscillating magnetic fields and its safety in mice. Electromagn Biol Med 2022; 41:419-428. [PMID: 36154345 DOI: 10.1080/15368378.2022.2127108] [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: 11/03/2022]
Abstract
We recently reported shrinkage of untreatable recurrent glioblastoma (GBM) in an end-stage patient using noninvasive brain stimulation with a spinning oscillating magnetic field (sOMF)-generating device called the Oncomagnetic device. Our in vitro experiments demonstrated selective cancer cell death while sparing normal cells by sOMF-induced increase in intracellular reactive oxygen species (ROS) levels due to magnetic perturbation of mitochondrial electron transport. Here, we describe the results of an in vivo study assessing the toxicity of chronic sOMF stimulation in mice using a newly constructed apparatus comprised of the sOMF-generating active components of the Oncomagnetic device. We chronically stimulated 10 normal 60-day old female C57BL/6 mice in their housing cages for 2 h 3 times a day, as in the patient treatment protocol, over 4 months. We also studied the effects of 2-h acute sOMF stimulation. Our observations and those of blinded independent veterinary staff observers, indicated no significant adverse effects of chronic or acute sOMF stimulation on the health, behavior, electrocardiographic and electroencephalographic activities, hematologic profile, and brain and other tissue and organ morphology of treated mice compared to age-matched untreated control mice. These findings suggest that short- and long-term therapies with the Oncomagnetic device are safe and well tolerated.
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Affiliation(s)
- Shashank Hambarde
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA
| | - Lisa Nguyen
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA.,Houston Methodist Magnetic Stimulation Device Core, Houston, TX, USA
| | - Jeanne Manalo
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA
| | - Blessy John
- Houston Methodist Magnetic Stimulation Device Core, Houston, TX, USA
| | - David S Baskin
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA.,Department of Neurosurgery, Weill Cornell Medical College, New York, NY, USA
| | - Santosh A Helekar
- Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Hospital, Houston, TX, USA.,Department of Neurosurgery, Houston Methodist Research Institute, Houston, TX, USA.,Houston Methodist Magnetic Stimulation Device Core, Houston, TX, USA.,Department of Neurosurgery, Weill Cornell Medical College, New York, NY, USA
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Medvedeva VP, Pierani A. How Do Electric Fields Coordinate Neuronal Migration and Maturation in the Developing Cortex? Front Cell Dev Biol 2020; 8:580657. [PMID: 33102486 PMCID: PMC7546860 DOI: 10.3389/fcell.2020.580657] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/04/2020] [Indexed: 12/13/2022] Open
Abstract
During development the vast majority of cells that will later compose the mature cerebral cortex undergo extensive migration to reach their final position. In addition to intrinsically distinct migratory behaviors, cells encounter and respond to vastly different microenvironments. These range from axonal tracts to cell-dense matrices, electrically active regions and extracellular matrix components, which may all change overtime. Furthermore, migrating neurons themselves not only adapt to their microenvironment but also modify the local niche through cell-cell contacts, secreted factors and ions. In the radial dimension, the developing cortex is roughly divided into dense progenitor and cortical plate territories, and a less crowded intermediate zone. The cortical plate is bordered by the subplate and the marginal zone, which are populated by neurons with high electrical activity and characterized by sophisticated neuritic ramifications. Neuronal migration is influenced by these boundaries resulting in dramatic changes in migratory behaviors as well as morphology and electrical activity. Modifications in the levels of any of these parameters can lead to alterations and even arrest of migration. Recent work indicates that morphology and electrical activity of migrating neuron are interconnected and the aim of this review is to explore the extent of this connection. We will discuss on one hand how the response of migrating neurons is altered upon modification of their intrinsic electrical properties and whether, on the other hand, the electrical properties of the cellular environment can modify the morphology and electrical activity of migrating cortical neurons.
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Affiliation(s)
- Vera P Medvedeva
- Imagine Institute of Genetic Diseases, Université de Paris, Paris, France.,Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, Université de Paris, Paris, France
| | - Alessandra Pierani
- Imagine Institute of Genetic Diseases, Université de Paris, Paris, France.,Institute of Psychiatry and Neuroscience of Paris, INSERM U1266, Université de Paris, Paris, France
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Woitek R, Prayer D, Hojreh A, Helbich T. Radiological staging in pregnant patients with cancer. ESMO Open 2016; 1:e000017. [PMID: 27843585 PMCID: PMC5070210 DOI: 10.1136/esmoopen-2015-000017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 01/13/2016] [Indexed: 11/21/2022] Open
Affiliation(s)
- Ramona Woitek
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria.
| | - Daniela Prayer
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Azadeh Hojreh
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Thomas Helbich
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
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