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Menjo Y, Yasui M, Fukushige K, Hatayama N, Yakura T, Naito M. A rat model for acute limb ischemia using microsized gelatin beads. Sci Prog 2024; 107:368504241231656. [PMID: 38490165 PMCID: PMC10943730 DOI: 10.1177/00368504241231656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
OBJECTIVE Acute limb ischemia (ALI) is a rapid decrease in lower limb blood flow due to acute occlusion of peripheral arteries or bypass grafts. This study aimed to establish an ALI model using microsized gelatin beads and to investigate the pathophysiological conditions. METHODS Male Sprague-Dawley rats were anesthetized, and a low or high dose of microsized gelatin beads was administered into the left femoral artery on days 0 and 7. A control, that is, normal saline (NS) group in which NS was administered in the left femoral artery, a femoral artery cut (FAC) group in which the left femoral artery was cut, and a sciatic nerve cut (SNC) group in which the left sciatic nerve was cut were prepared. After 21 days, the temperature changes and the muscle weights in the lower limbs were measured. To assess nerve damage, the L1-6 sympathetic ganglia were immunostained with activating transcription factor 3 (ATF3) antibody. RESULTS In the Low-dose, High-dose, and FAC groups, a decrease in temperature was predominantly observed in the left limb. In the High-dose and SNC groups, the weight of the soleus muscle and extensor digitorum longus in the left limb decreased; however, no weight changes were observed in the Low-dose and FAC groups. Conversely, the weight of the gastrocnemius muscle significantly decreased in the Low-dose, High-dose, FAC, and SNC groups. In the High-dose and SNC groups, the number of ATF3-positive cells in the sympathetic ganglia significantly increased, and in the Low-dose, a small number of ATF3-positive cells were observed. However, ATF3-positive cells were rarely observed in the FAC and NS groups. CONCLUSION We established an ALI rat model using microsized gelatin beads. The results of this study suggest that autonomic neuropathy in ALI is related to both muscle damage and peripheral neuropathy.
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Affiliation(s)
- Yuki Menjo
- Department of Anatomy, Aichi Medical University Graduate School of Medicine, Aichi, Japan
| | - Masaya Yasui
- Department of Integrated Studies of Human Development and Clinical Psychology, Tokoha University Faculty of Health Promotional Sciences, Shizuoka, Japan
| | - Kaori Fukushige
- Department of Anatomy, Aichi Medical University Graduate School of Medicine, Aichi, Japan
| | - Naoyuki Hatayama
- Department of Anatomy, Aichi Medical University Graduate School of Medicine, Aichi, Japan
| | - Tomiko Yakura
- Department of Anatomy, Tokyo Medical University School of Medicine Graduate School of Medicine, Tokyo, Japan
| | - Munekazu Naito
- Department of Anatomy, Aichi Medical University Graduate School of Medicine, Aichi, Japan
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Cheng J, Huang H, Chen Y, Wu R. Nanomedicine for Diagnosis and Treatment of Atherosclerosis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304294. [PMID: 37897322 PMCID: PMC10754137 DOI: 10.1002/advs.202304294] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 09/11/2023] [Indexed: 10/30/2023]
Abstract
With the changing disease spectrum, atherosclerosis has become increasingly prevalent worldwide and the associated diseases have emerged as the leading cause of death. Due to their fascinating physical, chemical, and biological characteristics, nanomaterials are regarded as a promising tool to tackle enormous challenges in medicine. The emerging discipline of nanomedicine has filled a huge application gap in the atherosclerotic field, ushering a new generation of diagnosis and treatment strategies. Herein, based on the essential pathogenic contributors of atherogenesis, as well as the distinct composition/structural characteristics, synthesis strategies, and surface design of nanoplatforms, the three major application branches (nanodiagnosis, nanotherapy, and nanotheranostic) of nanomedicine in atherosclerosis are elaborated. Then, state-of-art studies containing a sequence of representative and significant achievements are summarized in detail with an emphasis on the intrinsic interaction/relationship between nanomedicines and atherosclerosis. Particularly, attention is paid to the biosafety of nanomedicines, which aims to pave the way for future clinical translation of this burgeoning field. Finally, this comprehensive review is concluded by proposing unresolved key scientific issues and sharing the vision and expectation for the future, fully elucidating the closed loop from atherogenesis to the application paradigm of nanomedicines for advancing the early achievement of clinical applications.
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Affiliation(s)
- Jingyun Cheng
- Department of UltrasoundShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai200080P. R. China
| | - Hui Huang
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
| | - Yu Chen
- Materdicine LabSchool of Life SciencesShanghai UniversityShanghai200444P. R. China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health)Wenzhou Institute of Shanghai UniversityWenzhouZhejiang325088P. R. China
| | - Rong Wu
- Department of UltrasoundShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai200080P. R. China
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Chen X, Yu W, Zhang J, Fan X, Liu X, Liu Q, Pan S, Dixon RAF, Li P, Yu P, Shi A. Therapeutic angiogenesis and tissue revascularization in ischemic vascular disease. J Biol Eng 2023; 17:13. [PMID: 36797776 PMCID: PMC9936669 DOI: 10.1186/s13036-023-00330-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
Ischemic vascular disease is a major healthcare problem. The keys to treatment lie in vascular regeneration and restoration of perfusion. However, current treatments cannot satisfy the need for vascular regeneration to restore blood circulation. As biomedical research has evolved rapidly, a variety of potential alternative therapeutics has been explored widely, such as growth factor-based therapy, cell-based therapy, and material-based therapy including nanomedicine and biomaterials. This review will comprehensively describe the main pathogenesis of vascular injury in ischemic vascular disease, the therapeutic function of the above three treatment strategies, the corresponding potential challenges, and future research directions.
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Affiliation(s)
- Xinyue Chen
- grid.412455.30000 0004 1756 5980The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China
| | - Wenlu Yu
- grid.260463.50000 0001 2182 8825School of Ophthalmology and Optometry of Nanchang University, Nanchang, 330006 China
| | - Jing Zhang
- grid.412455.30000 0004 1756 5980Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China
| | - Xiao Fan
- grid.412455.30000 0004 1756 5980Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006 Jiangxi China
| | - Xiao Liu
- grid.412536.70000 0004 1791 7851Department of Cardiovascular Medicine, The Second Affiliated Hospital of Sun Yat Sen University, Guangzhou, 51000 Guangdong China
| | - Qi Liu
- grid.416470.00000 0004 4656 4290Wafic Said Molecular Cardiology Research Laboratory, The Texas Heart Institute, Houston, TX USA
| | - Su Pan
- grid.416470.00000 0004 4656 4290Wafic Said Molecular Cardiology Research Laboratory, The Texas Heart Institute, Houston, TX USA
| | - Richard A. F. Dixon
- grid.416470.00000 0004 4656 4290Wafic Said Molecular Cardiology Research Laboratory, The Texas Heart Institute, Houston, TX USA
| | - Pengyang Li
- grid.224260.00000 0004 0458 8737Division of Cardiology, Pauley Heart Center, Virginia Commonwealth University, Richmond, VA USA
| | - Peng Yu
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China. .,Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, 330006, China.
| | - Ao Shi
- School of Medicine, St. George University of London, London, UK. .,School of Medicine, University of Nicosia, Nicosia, Cyprus.
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Bovone G, Cousin L, Steiner F, Tibbitt MW. Solvent Controls Nanoparticle Size during Nanoprecipitation by Limiting Block Copolymer Assembly. Macromolecules 2022; 55:8040-8048. [PMID: 36186573 PMCID: PMC9520972 DOI: 10.1021/acs.macromol.2c00907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/20/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Giovanni Bovone
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
| | - Lucien Cousin
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
| | - Fabian Steiner
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
| | - Mark W. Tibbitt
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, 8092 Zurich, Switzerland
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Sano M, Akagi D, Naito M, Hoshina K, Miyata K, Kataoka K, Ishihara S. Systemic single administration of anti-inflammatory microRNA 146a-5p loaded in polymeric nanomedicines with active targetability attenuates neointimal hyperplasia by controlling inflammation in injured arteries in a rat model. FASEB J 2022; 36:e22486. [PMID: 35929425 DOI: 10.1096/fj.202101481r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 06/18/2022] [Accepted: 07/25/2022] [Indexed: 11/11/2022]
Abstract
Neointimal hyperplasia (NIH) after revascularization is a key unsolved clinical problem. Various studies have shown that attenuation of the acute inflammatory response on the vascular wall can prevent NIH. MicroRNA146a-5p (miR146a-5p) has been reported to show anti-inflammatory effects by inhibiting the NF-κB pathway, a well-known key player of inflammation of the vascular wall. Here, a nanomedicine, which can reach the vascular injury site, based on polymeric micelles was applied to deliver miR146a-5p in a rat carotid artery balloon injury model. In vitro studies using inflammation-induced vascular smooth muscle cell (VSMC) was performed. Results showed anti-inflammatory response as an inhibitor of the NF-κB pathway and VSMC migration, suppression of reactive oxygen species production, and proinflammatory cytokine gene expression in VSMCs. A single systemic administration of miR146a-5p attenuated NIH and vessel remodeling in a carotid artery balloon injury model in both male and female rats in vivo. MiR146a-5p reduced proinflammatory cytokine gene expression in injured arteries and monocyte/macrophage infiltration into the vascular wall. Therefore, miR146a-5p delivery to the injury site demonstrated therapeutic potential against NIH after revascularization.
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Affiliation(s)
- Masaya Sano
- Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku Tokyo, Japan
| | - Daisuke Akagi
- Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku Tokyo, Japan
| | - Mitsuru Naito
- Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku Tokyo, Japan
| | - Katsuyuki Hoshina
- Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku Tokyo, Japan
| | - Kanjiro Miyata
- Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku Tokyo, Japan
| | - Kazunori Kataoka
- Innovation Center of NanoMedicine, Kawasaki Institute of Industrial Promotion, Kawasaki, Japan
| | - Soichiro Ishihara
- Division of Vascular Surgery, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku Tokyo, Japan
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Paliwal H, Parihar A, Prajapati BG. Current State-of-the-Art and New Trends in Self-Assembled Nanocarriers as Drug Delivery Systems. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.836674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Self-assembled nanocarrier drug delivery has received profuse attention in the field of diagnosis and treatment of diseases. These carriers have proved that serious life-threatening diseases can be eliminated evidently by virtue of their characteristic design and features. This review is aimed at systematically presenting the research and advances in the field of self-assembled nanocarriers such as polymeric nanoparticles, dendrimers, liposomes, inorganic nanocarriers, solid lipid nanoparticles, polymerosomes, micellar systems, niosomes, and some other nanoparticles. The self-assembled delivery of nanocarriers has been developed in recent years for targeting diseases. Some of the innovative attempts with regard to prolonging drug action, improving bioavailability, avoiding drug resistance, enhancing cellular uptake, and so on have been discussed. The discussion about various delivery systems included the investigation conducted at the preliminary stage, i.e., preclinical trials and assessment of safety. The clinical studies of some of the recently developed self-assembled products are currently at the clinical trial phase or FDA approved.
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Hendow EK, Moazen M, Iacoviello F, Bozec L, Pellet-Many C, Day RM. Microporous Biodegradable Films Promote Therapeutic Angiogenesis. Adv Healthc Mater 2020; 9:e2000806. [PMID: 32666663 PMCID: PMC8427471 DOI: 10.1002/adhm.202000806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Indexed: 01/10/2023]
Abstract
Peripheral arterial disease and critical limb ischemia are common symptoms of cardiovascular disease. Vascular surgery is used to create a bypass around occluded blood vessels to improve blood flow to ischemic muscle, thus avoiding the need for amputation. Attempts to vascularize tissues by therapeutic angiogenesis using delivery of exogenous angiogenic agents are underwhelming. A material-based approach that provides an endogenous stimulus capable of promoting angiogenesis and increased tissue perfusion would provide a paradigm shift in treatment options available. It is reported here that microporous biodegradable films produced using thermally induced phase separation provide a localized biophysical stimulus of proangiogenic genes in vivo that is associated with increased blood vessel density and restoration of blood flow to ischemic tissue. These findings show, for the first time, that acellular, nonfunctionalized biodegradable biomaterials can provide an innovative, material-based approach for therapeutic angiogenesis to enhance tissue reperfusion in vivo.
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Affiliation(s)
- Eseelle K Hendow
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK
| | - Mehran Moazen
- UCL Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Francesco Iacoviello
- Electrochemical Innovation Lab, UCL Department of Chemical Engineering, University College London, Roberts Building, London, WC1E 7JE, UK
| | - Laurent Bozec
- Faculty of Dentistry, University of Toronto, 124 Edwards Street, Toronto, Ontario, M5G 1G6, Canada
| | - Caroline Pellet-Many
- Department of Comparative Biomedical Sciences, Royal Veterinary College, 4 Royal College Street, London, NW1 0TU, UK
| | - Richard M Day
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK
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