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Davis EH, Jones C, Coward K. Rethinking the application of nanoparticles in women's reproductive health and assisted reproduction. Nanomedicine (Lond) 2024. [PMID: 38686941 DOI: 10.2217/nnm-2023-0346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024] Open
Abstract
Nanoparticles and nanotechnology may present opportunities to revolutionize the prevention, treatment and diagnosis of a range of reproductive health conditions in women. These technologies are also used to improve outcomes of assisted reproductive technology. We highlight a range of these potential clinical uses of nanoparticles for polycystic ovary syndrome, endometriosis, uterine fibroids and sexually transmitted infections, considering in vitro and in vivo studies along with clinical trials. In addition, we discuss applications of nanoparticles in assisted reproductive technology, including sperm loading, gamete and embryo preservation and preventing preterm birth. Finally, we present some of the concerns associated with the medical use of nanoparticles, identifying routes for further exploration before nanoparticles can be applied to women's reproductive health in the clinic.
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Affiliation(s)
- Emily Hs Davis
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford, OX3 9DU, United Kingdom
| | - Celine Jones
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford, OX3 9DU, United Kingdom
| | - Kevin Coward
- Nuffield Department of Women's & Reproductive Health, University of Oxford, Women's Centre, John Radcliffe Hospital, Oxford, OX3 9DU, United Kingdom
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He C, Zeng W, Su Y, Sun R, Xiao Y, Zhang B, Liu W, Wang R, Zhang X, Chen C. Microfluidic-based fabrication and characterization of drug-loaded PLGA magnetic microspheres with tunable shell thickness. Drug Deliv 2021; 28:692-699. [PMID: 33818236 PMCID: PMC8023598 DOI: 10.1080/10717544.2021.1905739] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
To overcome the shortcoming of conventional transarterial chemoembolization (cTACE) like high systemic release, a novel droplet-based flow-focusing microfluidic device was fabricated and the biocompatible poly(lactic-co-glycolic acid) (PLGA) magnetic drug-eluting beads transarterial chemoembolization (TACE) microspheres with tunable size and shell thickness were prepared via this device. Paclitaxel, as a model active, was loaded through O/O/W emulsion method with high efficiency. The size and the shell thickness vary when adjusting the flow velocity and/or solution concentration, which caters for different clinical requirements to have different drug loading and release behavior. Under the designed experimental conditions, the average diameter of the microspheres is 60 ± 2 μm and the drug loading efficiency has reached 6%. The drug release behavior of the microspheres shows the combination of delayed release and smoothly sustained release profiles and the release kinetics differ within different shell thickness. The microspheres also own the potential of magnetic resonance imaging (MRI) visuality because of the loaded magnetic nanoparticles. The microsphere preparation method and device we proposed are simple, feasible, and effective, which have a good application prospect.
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Affiliation(s)
- Chunpeng He
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Wenxin Zeng
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Yue Su
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | - Ruowei Sun
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang, China
| | - Yin Xiao
- Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Bolun Zhang
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang, China
| | - Wenfang Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
| | | | - Xun Zhang
- Hunan Zaochen Nanorobot Co., Ltd, Liuyang, China
| | - Chuanpin Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, China
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Tian J, Li J, Yin H, Ma L, Zhang J, Zhai Q, Duan S, Zhang L. In vitro and in vivo uterine metabolic disorders induced by silica nanoparticle through the AMPK signaling pathway. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:143152. [PMID: 33139001 DOI: 10.1016/j.scitotenv.2020.143152] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/27/2020] [Accepted: 10/12/2020] [Indexed: 06/11/2023]
Abstract
Exposure to silica nanoparticles (SiNPs) has been suggested to cause physical disorders, yet the effects of SiNPs on female reproduction have not been illustrated. This study was implemented to explore the reproductive toxicity of SiNPs on female and reveal its underlying mechanisms. Methodologically, the fluorescein isothiocyanate (FITC)-SiNPs were synthesized by coupling with FITC and then used to track the biodistribution of SiNPs in vitro and in vivo. In total, 30 mice were intratracheally injected 0.25 g of FITC-SiNPs, and 6 mice injected with the same volume of saline were used as controls. The results showed that SiNPs penetrated the cellular membrane, triggering apoptosis and inhibiting proliferation, tube formation, and invasion of trophoblast. Mechanistically, SiNPs was demonstrated to dysregulate Fbp2, Cpt1a, Scd1, and Pfkl, and further induced accumulation of pyruvate and fatty acid in mitochondria through the AMPK signaling pathway, which finally activated the Caspase-3-dependent apoptosis. Consistently, the similar alterations of these genes were detected in vivo, and the uterine inflammatory infiltration aggravated with the extension of the observation duration. These results suggested that SiNPs induced trophoblast apoptosis and uterine inflammation, and ultimately caused acute reproductive toxicity on female. The underlying mechanism might be explained by the dysregulation of Fbp2/Cpt1a/Pfkl/Scd1 axis, which promoted the overload of glucose and lipid through the AMPK signaling pathway. These findings were of great significance to guide a comprehensive understanding of the reproductive toxicity of SiNPs as well as the development of environmental standards.
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Affiliation(s)
- Jiaqi Tian
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan 250001, China; School of Public Health, Weifang Medical University, Weifang 261042, China
| | - Junxia Li
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan 250001, China; School of Public Health, Weifang Medical University, Weifang 261042, China
| | - Haoyu Yin
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan 250001, China; School of Public Health, Weifang Medical University, Weifang 261042, China
| | - Lan Ma
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan 250001, China; School of Public Health, Weifang Medical University, Weifang 261042, China
| | - Jing Zhang
- School of Public Health, North China University of Science and Technology, Tangshan 063000, China
| | - Qingfeng Zhai
- School of Public Health, Weifang Medical University, Weifang 261042, China
| | - Shuyin Duan
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan 250001, China; School of Public Health, Zhengzhou University, Zhengzhou 450001, China.
| | - Lin Zhang
- Key Laboratory of Birth Regulation and Control Technology of National Health Commission of China, Maternal and Child Health Care Hospital of Shandong Province, Shandong University, Jinan 250001, China.
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Sun M, Wang T, Pang J, Chen X, Liu Y. Hydroxybutyl Chitosan Centered Biocomposites for Potential Curative Applications: A Critical Review. Biomacromolecules 2020; 21:1351-1367. [DOI: 10.1021/acs.biomac.0c00071] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mengjie Sun
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
| | - Ting Wang
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
| | - Jianhui Pang
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
| | - Xiguang Chen
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
- Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, P.R. China
| | - Ya Liu
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, P.R. China
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Biocompatibility of a New Kind of Polyvinyl Alcohol Embolic Microspheres: In Vitro and In Vivo Evaluation. Mol Biotechnol 2019; 61:610-621. [PMID: 31144113 DOI: 10.1007/s12033-019-00166-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aim of this study is to investigate the biocompatibility of polyvinyl alcohol (PVA) embolic microspheres by in vivo and in vitro evaluations. Two specifications of PVA microspheres including colorless microspheres (1 g microspheres with 7 mL 0.9% sodium chloride (SC) per vial, size: 500-700 µm) and blue microspheres (2 g microspheres with 7 mL 0.9% SC per vial, size: 500-700 µm) were assessed for biocompatibility. The vitro cytotoxicity was evaluated in L929 cells by MTT assay. Acute systemic toxicity and 28-repeat dose intravenous subchronic toxicity were assessed in 20 ICR mice and 40 SD rates, respectively. Skin sensitization was conducted in 30 adult albino guinea pigs by maximization test, in addition, intracutaneous reaction test was performed in New Zealand white rabbits. Hemolysis ratio of PVA microspheres was evaluated with rabbit blood. Moreover, test for genotoxicity was assessed by bacterial reverse mutation test and mouse lymphoma mutagenesis assay. No cytotoxicity, hemolysis, or acute toxicity of PVA microspheres was found, and slight fluctuations of biochemical indexes were observed in test of 28-day repeat dose intravenous subchronic toxicity, while these changes remained within our historical permitted range. Maximization test and intracutaneous reactivity test disclosed no irritation to skin or tissues. According to bacterial reverse mutation test and mouse lymphoma mutagenesis assay, no genotoxicity of PVA microspheres was observed. PVA microspheres showed excellent biocompatibility both in vivo and in vitro, and they were promising embolic materials for drug-eluting beads transarterial chemoembolization (DEB-TACE) therapy.
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Qin XY, Liu XX, Li ZY, Guo LY, Zheng ZZ, Guan HT, Song L, Zou YH, Fan TY. MRI Detectable Polymer Microspheres Embedded With Magnetic Ferrite Nanoclusters For Embolization: In Vitro And In Vivo Evaluation. Int J Nanomedicine 2019; 14:8989-9006. [PMID: 31819414 PMCID: PMC6873973 DOI: 10.2147/ijn.s209603] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 09/25/2019] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE The objective of this study was to develop magnetic embolic microspheres that could be visualized by clinical magnetic resonance imaging (MRI) scanners aiming to improve the efficiency and safety of embolotherapy. METHODS AND DISCUSSION Magnetic ferrite nanoclusters (FNs) were synthesized with microwave-assisted solvothermal method, and their morphology, particle size, crystalline structure, magnetic properties as well as T2 relaxivity were characterized to confirm the feasibility of FNs as an MRI probe. Magnetic polymer microspheres (FNMs) were then produced by inverse suspension polymerization with FNs embedded inside. The physicochemical and mechanical properties (including morphology, particle size, infrared spectra, elasticity, etc.) of FNMs were investigated, and the magnetic properties and MRI detectable properties of FNMs were also assayed by vibrating sample magnetometer and MRI scanners. Favorable biocompatibility and long-term MRI detectability of FNMs were then studied in mice by subcutaneous injection. FNMs were further used to embolize rabbits' kidneys to evaluate the embolic property and detectability by MRI. CONCLUSION FNMs could serve as a promising MRI-visualized embolic material for embolotherapy in the future.
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Affiliation(s)
- Xiao-Ya Qin
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
| | - Xiao-Xin Liu
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
| | - Zi-Yuan Li
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
| | - Li-Ying Guo
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
| | - Zhuo-Zhao Zheng
- Department of Nuclear Medicine, Beijing Tsinghua Changgung Hospital, Beijing, People’s Republic of China
| | - Hai-Tao Guan
- Department of Interventional Radiology and Vascular Surgery, Peking University First Hospital, Beijing, People’s Republic of China
| | - Li Song
- Department of Interventional Radiology and Vascular Surgery, Peking University First Hospital, Beijing, People’s Republic of China
| | - Ying-Hua Zou
- Department of Interventional Radiology and Vascular Surgery, Peking University First Hospital, Beijing, People’s Republic of China
| | - Tian-Yuan Fan
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing, People’s Republic of China
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Wang Q, Xiao A, Liu Y, Zou Q, Zhou Q, Wang H, Yang X, Zheng C, Yang Y, Zhu Y. One-step preparation of nano-in-micro poly(vinyl alcohol) embolic microspheres and used for dual-modal T 1/T 2-weighted magnetic resonance imaging. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:2551-2561. [PMID: 30153472 DOI: 10.1016/j.nano.2018.08.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 08/03/2018] [Accepted: 08/08/2018] [Indexed: 12/17/2022]
Abstract
It is crucial to develop dual or multi-modal self-imaging embolic microspheres to evaluate the effects of transcatheter arterial embolization therapy of tumor. However, the preparation of such hybrid microspheres always involved in multiple steps or complicated conditions. Here, poly(vinyl alcohol) (PVA) hybrid microspheres with dual-modal T1/T2-weighted magnetic resonance imaging (MRI) have been prepared based on microfluidic technique in one step. Gd2O3 and Fe3O4 nanoparticles with a size of ~5 nm act as T1- and T2-weighted MRI contrast agents, respectively, which are simultaneously in-situ synthesized in the PVA matrix via the reaction of metal ions and alkali with PVA chains as a soft template. Meanwhile, these metallic-oxide nanoparticles act as cross-linker to gelatinize the PVA droplets to obtain nano-in-micro PVA microspheres in one step. This procedure is simple, economic and feasible. The obtained nano-in-micro PVA microspheres show good magnetothermal effect, enhanced T1- and T2-weighted MRI and embolization effect.
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Affiliation(s)
- Qin Wang
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Ai Xiao
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Yiming Liu
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Zou
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Zhou
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Hong Wang
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Chuansheng Zheng
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Yajiang Yang
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, China.
| | - Yanhong Zhu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.
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Hwang H, Kim HS, Kwon J, Oh PS, Park HS, Lim ST, Sohn MH, Jeong HJ. Chitosan-Based Hydrogel Microparticles for Treatment of Carcinoma in a Rabbit VX2 Liver Tumor Model. J Vasc Interv Radiol 2018; 29:575-583. [PMID: 29477625 DOI: 10.1016/j.jvir.2017.11.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To investigate potential of chitosan hydrogel microparticles (CHI) for treatment of VX2 carcinoma. MATERIALS AND METHODS Two weeks after liver VX2 implantation, contrast-enhanced computerized tomographic scanning was conducted. Rabbits (n = 2) with successful tumor growth were treated with different sizes of 99mTc-labeled CHI (60-80 μm and 100-120 μm) via intra-arterial hepatic catheterization. Liver distribution of 99mTc-labeled CHI was determined by means of autoradiography, a radiation-based photographic technique. In the next part of this study, therapeutic effectiveness was examined with the use of CHI with the size range of 60-80 μm (n = 11). Tumor growth response and levels of blood liver enzymes were studied at baseline and 1 and 2 weeks after CHI treatment. RESULTS Successful tumor growth was confirmed in all rabbits (24/24). Intrahepatic CHI with the size range of 60-80 μm resulted in liver localization in more close proximity to tumor nodule versus 100-120 μm. Baseline tumor volume was 1,909 ± 575 mm3 in animals receiving CHI versus 1,831 ± 249 mm3 in control animals (P = .342). In control animals, tumor volume markedly increased by 1,544 ± 512% at 2 weeks after sham operation versus baseline. In animals receiving CHI, tumor volume remained relatively unchanged (54 ± 6% increase; P = .007 vs control). Levels of blood aspartate transaminase (AST) and alanine transaminase (ALT) in animals receiving CHI increased 1 week after treatment (P = .032 vs control for AST; P = .000 vs control for ALT), but returned to control levels at 2 weeks. CONCLUSIONS CHI embolization suppressed tumor growth without appreciable damages in liver function.
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Affiliation(s)
- Hyosook Hwang
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Medical School and Hospital, 634-18 GeumAm-dong, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803, Republic of Korea
| | - Hyeon-Soo Kim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Medical School and Hospital, 634-18 GeumAm-dong, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803, Republic of Korea
| | - JeongIl Kwon
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Medical School and Hospital, 634-18 GeumAm-dong, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803, Republic of Korea
| | - Phil-Sun Oh
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Medical School and Hospital, 634-18 GeumAm-dong, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803, Republic of Korea
| | - Ho Sung Park
- Department of Pathology, Chonbuk National University Medical School and Hospital, Jeonju, Jeonbuk, Republic of Korea
| | - Seok Tae Lim
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Medical School and Hospital, 634-18 GeumAm-dong, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803, Republic of Korea
| | - Myung-Hee Sohn
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Medical School and Hospital, 634-18 GeumAm-dong, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803, Republic of Korea
| | - Hwan-Jeong Jeong
- Department of Nuclear Medicine, Molecular Imaging and Therapeutic Medicine Research Center, Cyclotron Research Center, Research Institute of Clinical Medicine, Biomedical Research Institute, Chonbuk National University Medical School and Hospital, 634-18 GeumAm-dong, Duckjin-gu, Jeonju-si, Jeollabuk-do 561-803, Republic of Korea.
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Porcu EP, Salis A, Rassu G, Maestri M, Galafassi J, Bruni G, Giunchedi P, Gavini E. Engineered polymeric microspheres obtained by multi-step method as potential systems for transarterial embolization and intraoperative imaging of HCC: Preliminary evaluation. Eur J Pharm Biopharm 2017; 117:160-167. [DOI: 10.1016/j.ejpb.2017.04.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 04/06/2017] [Accepted: 04/11/2017] [Indexed: 12/11/2022]
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Poly(acrylic acid) microspheres loaded with superparamagnetic iron oxide nanoparticles for transcatheter arterial embolization and MRI detectability: In vitro and in vivo evaluation. Int J Pharm 2017; 527:31-41. [DOI: 10.1016/j.ijpharm.2017.04.069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/17/2017] [Accepted: 04/28/2017] [Indexed: 02/07/2023]
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Wang Q, Liu S, Yang F, Gan L, Yang X, Yang Y. Magnetic alginate microspheres detected by MRI fabricated using microfluidic technique and release behavior of encapsulated dual drugs. Int J Nanomedicine 2017; 12:4335-4347. [PMID: 28652736 PMCID: PMC5473605 DOI: 10.2147/ijn.s131249] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Alginate microspheres loaded with superparamagnetic iron oxide nanoparticles (SPIO NPs) have been fabricated by a T-junction microfluidic device combined with an external ionic crosslinking. The obtained microspheres possess excellent visuality under magnetic resonance due to the presence of only 0.6 mg/mL SPIO NPs. The microspheres also show uniform size with narrow distribution and regular spherical shape characterized by optic microscope and environmental scanning electron microscope. Furthermore, dual drugs (5-fluorouracil and doxorubicin hydrochloride) have been loaded within the microspheres. The release behavior of dual drugs from the microspheres show typical sustained release profiles. As a novel embolic agent, such microspheres in blood vessels can be tracked by magnetic resonance scanner. Thus, the integration of embolotherapy, chemotherapy, and postoperative diagnosis can be realized.
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Affiliation(s)
- Qin Wang
- National Engineering Research Center for Nanomedicine, School of Chemistry and Chemical Engineering
| | - Shanshan Liu
- National Engineering Research Center for Nanomedicine, School of Chemistry and Chemical Engineering
| | - Fan Yang
- Department of Radiology, Union Hospital, Tongji Medical College
| | - Lu Gan
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Yajiang Yang
- National Engineering Research Center for Nanomedicine, School of Chemistry and Chemical Engineering
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Li S, Xiao L, Deng H, Shi X, Cao Q. Remote controlled drug release from multi-functional Fe 3O 4/GO/Chitosan microspheres fabricated by an electrospray method. Colloids Surf B Biointerfaces 2016; 151:354-362. [PMID: 28043052 DOI: 10.1016/j.colsurfb.2016.12.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 12/30/2022]
Abstract
The construction of multifunctional microspheres for remote controlled drug release requires the exquisite selection of composite materials and preparation approaches. In this study, chitosan, an amino polysaccharide, was blended with inorganic nanocomponents, Fe3O4 and graphene oxide (GO) and electrosprayed to fabricate uniform microspheres with the diameters ranging from 100μm to 1100μm. An anti-cancer drug, doxorubicin (DOX), was loaded to the microspheres by an adsorption or embedding method. The microsphere is responsive to magnetic fields due to the presence of Fe3O4, and the incorporation of GO enhanced the drug loading capacity. The fast stimuli-responsive release of DOX can be facilely controlled by using NIR irradiation due to the strong photo-thermal conversion of Fe3O4 and GO. In addition, ultrasound was used as another external stimulus for DOX release. The results suggest the Fe3O4/GO/Chitosan microspheres fabricated by the electrospray method provide an efficient platform for remote controlled drug release, which may have potential applications in drug eluting microspheres.
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Affiliation(s)
- Sheng Li
- School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430072, PR China.
| | - Ling Xiao
- School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430072, PR China.
| | - Hongbing Deng
- School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430072, PR China.
| | - Xiaowen Shi
- School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430072, PR China.
| | - Qihua Cao
- School of Resource and Environmental Science, Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan 430072, PR China.
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Preparation and evaluation of MRI detectable poly (acrylic acid) microspheres loaded with superparamagnetic iron oxide nanoparticles for transcatheter arterial embolization. Int J Pharm 2016; 511:831-9. [DOI: 10.1016/j.ijpharm.2016.07.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 07/06/2016] [Accepted: 07/14/2016] [Indexed: 01/10/2023]
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Affiliation(s)
- Dawn Bannerman
- Graduate Program in Biomedical Engineering, University of Western Ontario, London, Ontario, Canada
| | - Wankei Wan
- Graduate Program in Biomedical Engineering, University of Western Ontario, London, Ontario, Canada
- Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, Canada
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