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Sasamori H, Asakura T, Sugiura C, Bouchekioua Y, Nishitani N, Sato M, Yoshida T, Yamasaki M, Terao A, Watanabe M, Ohmura Y, Yoshioka M. Behavioral characteristics of dopamine D 5 receptor knockout mice. Sci Rep 2022; 12:6014. [PMID: 35399112 PMCID: PMC8995362 DOI: 10.1038/s41598-022-10013-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/07/2022] [Indexed: 11/21/2022] Open
Abstract
Major psychiatric disorders such as attention-deficit/hyperactivity disorder and schizophrenia are often accompanied by elevated impulsivity. However, anti-impulsive drug treatments are still limited. To explore a novel molecular target, we examined the role of dopamine D5 receptors in impulse control using mice that completely lack D5 receptors (D5KO mice). We also measured spontaneous activity and learning/memory ability because these deficits could confound the assessment of impulsivity. We found small but significant effects of D5 receptor knockout on home cage activity only at specific times of the day. In addition, an analysis using the q-learning model revealed that D5KO mice displayed lower behavioral adjustment after impulsive actions. However, our results also showed that baseline impulsive actions and the effects of an anti-impulsive drug in D5KO mice were comparable to those in wild-type littermates. Moreover, unlike previous studies that used other D5 receptor-deficient mouse lines, we did not observe reductions in locomotor activity, working memory deficits, or severe learning deficits in our line of D5KO mice. These findings demonstrate that D5 receptors are dispensable for impulse control. Our results also indicate that time series analysis and detailed analysis of the learning process are necessary to clarify the behavioral functions of D5 receptors.
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Affiliation(s)
- Hitomi Sasamori
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | | | - Chiaki Sugiura
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Youcef Bouchekioua
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Naoya Nishitani
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan.,Laboratory of Molecular Pharmacology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Masaaki Sato
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Takayuki Yoshida
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan.,Department of Neurophysiology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Miwako Yamasaki
- Department of Anatomy, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Akira Terao
- Department of Biology, School of Biological Sciences, Tokai University, Sapporo, Japan
| | - Masahiko Watanabe
- Department of Anatomy, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Yu Ohmura
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan.
| | - Mitsuhiro Yoshioka
- Department of Neuropharmacology, Hokkaido University Faculty of Medicine, Sapporo, Japan
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Zhu X, Guo D, Chen M, An X, Wang B, Yu W. Application value and challenge of traditional Chinese medicine carried by ZIF-8 in the therapy of ischemic stroke. IBRAIN 2021; 7:337-350. [PMID: 37786560 PMCID: PMC10529174 DOI: 10.1002/ibra.12007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 10/04/2023]
Abstract
Stroke is a group of major diseases that cause death or disability in adults, with high incidence and lack of available therapeutic strategies. Although traditional Chinese medicine (TCM) has continuously achieved good effects in the therapy of stroke while there is still not convincing due to the limitation of blood-brain permeability, as well as the individual differences in usage and dosage. With the improvement of nanotechnology, TCM nanopreparation has gradually become a research hotspot in various fields due to its advantages in permeating the blood-brain barrier, targeting delivery, enhancing sustained-release drug delivery, changing the distribution in the body, and improving bioavailability. Zeolitic imidazolate framework-8 (ZIF-8) is an ideal nano-drug delivery system for adsorption, catalysis, and drug loading, which is a biocompatible metal-organic framework framed by 2-methylimidazole and zinc ions. At present, ZIF-8 was wildly used in the treatment of ischemic stroke. However, challenges remain persists for its clinical application, such as preparation technology, detection technology in vivo, targeting specificity, safety and stability, and so forth. Therefore, more efforts need to overcome the above problems to develop the application of TCM nanopreparations in the therapy of ischemia/reperfusion in the future.
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Affiliation(s)
- Xiao‐Xi Zhu
- Key Laboratory of Molecular BiologyGuizhou Medical UniversityGuiyangGuizhouChina
| | - Dong‐Fen Guo
- Key Laboratory of Molecular BiologyGuizhou Medical UniversityGuiyangGuizhouChina
| | - Ming Chen
- Key Laboratory of Molecular BiologyGuizhou Medical UniversityGuiyangGuizhouChina
| | - Xiao‐Qiong An
- Key Laboratory of Molecular BiologyGuizhou Medical UniversityGuiyangGuizhouChina
| | - Bi Wang
- Key Laboratory of Molecular BiologyGuizhou Medical UniversityGuiyangGuizhouChina
| | - Wen‐Feng Yu
- Key Laboratory of Molecular BiologyGuizhou Medical UniversityGuiyangGuizhouChina
- Key Laboratory of Endemic and Minority Diseases, Education MinistryGuizhou Medical UniversityGuiyangGuizhouChina
- School of Basic Medical ScienceGuizhou Medical UniversityGuiyangGuizhouChina
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3
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He W, Zhang Z, Sha X. Nanoparticles-mediated emerging approaches for effective treatment of ischemic stroke. Biomaterials 2021; 277:121111. [PMID: 34488117 DOI: 10.1016/j.biomaterials.2021.121111] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 08/25/2021] [Accepted: 08/27/2021] [Indexed: 12/20/2022]
Abstract
Ischemic stroke leads to high disability and mortality. The limited delivery efficiency of most therapeutic substances is a major challenge for effective treatment of ischemic stroke. Inspired by the prominent merit of nanoscale particles in brain targeting and blood-brain barrier (BBB) penetration, various functional nanoparticles have been designed as promising drug delivery platforms that are expected to improve the therapeutic effect of ischemic stroke. Based on the complex pathological mechanisms of ischemic stroke, this review outline and summarize the rationally designed nanoparticles-mediated emerging approaches for effective treatment of ischemic stroke, including recanalization therapy, neuroprotection therapy, and combination therapy. On this bases, the potentials and challenges of nanoparticles in the treatment of ischemic stroke are revealed, and new thoughts and perspectives are proposed for the design of feasible nanoparticles for effective treatment of ischemic stroke.
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Affiliation(s)
- Wenxiu He
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - Zhiwen Zhang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Xianyi Sha
- Key Laboratory of Smart Drug Delivery, Ministry of Education, School of Pharmacy, Fudan University, Shanghai, 201203, China; The Institutes of Integrative Medicine of Fudan University, 120 Urumqi Middle Road, Shanghai, 200040, China.
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Li C, Sun T, Jiang C. Recent advances in nanomedicines for the treatment of ischemic stroke. Acta Pharm Sin B 2021; 11:1767-1788. [PMID: 34386320 PMCID: PMC8343119 DOI: 10.1016/j.apsb.2020.11.019] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/27/2020] [Accepted: 09/13/2020] [Indexed: 12/20/2022] Open
Abstract
Ischemic stroke is a cerebrovascular disease normally caused by interrupted blood supply to the brain. Ischemia would initiate the cascade reaction consisted of multiple biochemical events in the damaged areas of the brain, where the ischemic cascade eventually leads to cell death and brain infarction. Extensive researches focusing on different stages of the cascade reaction have been conducted with the aim of curing ischemic stroke. However, traditional treatment methods based on antithrombotic therapy and neuroprotective therapy are greatly limited for their poor safety and treatment efficacy. Nanomedicine provides new possibilities for treating stroke as they could improve the pharmacokinetic behavior of drugs in vivo, achieve effective drug accumulation at the target site, enhance the therapeutic effect and meanwhile reduce the side effect. In this review, we comprehensively describe the pathophysiology of stroke, traditional treatment strategies and emerging nanomedicines, summarize the barriers and methods for transporting nanomedicine to the lesions, and illustrate the latest progress of nanomedicine in treating ischemic stroke, with a view to providing a new feasible path for the treatment of cerebral ischemia.
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Key Words
- AEPO, asialo-erythropoietin
- APOE, apolipoprotein E
- BBB, blood‒brain barrier
- BCECs, brain capillary endothelial cells
- Blood‒brain barrier
- CAT, catalase
- COX-1, cyclooxygenase-1
- CXCR-4, C-X-C chemokine receptor type 4
- Ce-NPs, ceria nanoparticles
- CsA, cyclosporine A
- DAMPs, damage-associated molecular patterns
- GFs, growth factors
- GPIIb/IIIa, glycoprotein IIb/IIIa
- HMGB1, high mobility group protein B1
- Hb, hemoglobin
- ICAM-1, intercellular adhesion molecule-1
- IL-1β, interleukin-1β
- IL-6, interleukin-6
- Ischemic cascade
- LFA-1, lymphocyte function-associated antigen-1
- LHb, liposomal Hb
- MCAO, middle cerebral artery occlusion
- MMPs, matrix metalloproteinases
- MSC, mesenchymal stem cell
- NF-κB, nuclear factor-κB
- NGF, nerve growth factor
- NMDAR, N-methyl-d-aspartate receptor
- NOS, nitric oxide synthase
- NPs, nanoparticles
- NSCs, neural stem cells
- Nanomedicine
- Neuroprotectant
- PBCA, poly-butylcyanoacrylate
- PCMS, poly (chloromethylstyrene)
- PEG, poly-ethylene-glycol
- PEG-PLA, poly (ethylene-glycol)-b-poly (lactide)
- PLGA NPs, poly (l-lactide-co-glycolide) nanoparticles
- PSD-95, postsynaptic density protein-95
- PSGL-1, P-selectin glycoprotein ligand-1
- RBCs, red blood cells
- RES, reticuloendothelial system
- RGD, Arg-Gly-Asp
- ROS, reactive oxygen species
- Reperfusion
- SDF-1, stromal cell-derived factor-1
- SHp, stroke homing peptide
- SOD, superoxide dismutase
- SUR1-TRPM4, sulfonylurea receptor 1-transient receptor potential melastatin-4
- Stroke
- TEMPO, 2,2,6,6-tetramethylpiperidine-1-oxyl
- TIA, transient ischemic attack
- TNF-α, tumor necrosis factor-α
- Thrombolytics
- cRGD, cyclic Arg-Gly-Asp
- e-PAM-R, arginine-poly-amidoamine ester
- iNOS, inducible nitric oxide synthase
- miRNAs, microRNAs
- nNOS, neuron nitric oxide synthase
- siRNA, small interfering RNA
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Morin A, Poitras M, Plamondon H. Global cerebral ischemia in adolescent male Long Evans rats: Effects of vanillic acid supplementation on stress response, emotionality, and visuospatial memory. Behav Brain Res 2021; 412:113403. [PMID: 34090940 DOI: 10.1016/j.bbr.2021.113403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 05/12/2021] [Accepted: 06/01/2021] [Indexed: 01/06/2023]
Abstract
The developmental period is critical in delineating plastic response to internal and external events. However, neurobehavioural effects of global cerebral ischemia (GCI) in the maturing brain remain largely unknown. This study characterised the effects of GCI experienced at puberty on adulthood (1) hippocampus CA1 neuronal damage, (2) cognitive and emotional impairments, and (3) glucocorticoid receptor (GR) expression. Effects of adolescent exposure to the phenol vanillic acid (VA) on post-ischemic outcomes were also determined. Male Long Evans rats (n = 35) were supplemented for 21 consecutive days (postnatal days 33-53) with VA (91 mg/kg) or nut paste vehicle (control) prior to a 10-min GCI or sham surgery. As adults, rats were tested in the Open Field Test (OFT), Elevated-Plus Maze (EPM), and Barnes Maze (BM). GR expression was determined in the basolateral amygdala (BLA), CA1, and paraventricular nucleus (PVN), and brain injury assessed via CA1 neuronal density. Adolescent GCI exposure induced extensive hippocampal CA1 injury, which was not prevented by VA supplementation. Behaviourally, GCI increased EPM exploration while having no impact on spatial memory. VA intake increased OFT peripheral exploration. Notably, while no delayed changes in CA1 and PVN GR immunoreactivity were noted, both treatments separately increased BLA GR expression when compared with sham-nut paste rats. Age at GCI occurrence plays a critical role on post-ischemic impairments. The observation of minimal functional impairments despite important CA1 neuronal damage supports use of compensatory mechanisms. Our findings also show daily VA supplementation during adolescence to have no protective effects on post-ischemic outcomes, contrasting adult intake.
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Affiliation(s)
- Alexandre Morin
- Behavioural Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, Ontario, K1N 6N5, Canada.
| | - Marilou Poitras
- Behavioural Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, Ontario, K1N 6N5, Canada.
| | - Hélène Plamondon
- Behavioural Neuroscience Group, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier, Ottawa, Ontario, K1N 6N5, Canada.
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Ohmura Y, Iwami K, Chowdhury S, Sasamori H, Sugiura C, Bouchekioua Y, Nishitani N, Yamanaka A, Yoshioka M. Disruption of model-based decision making by silencing of serotonin neurons in the dorsal raphe nucleus. Curr Biol 2021; 31:2446-2454.e5. [DOI: 10.1016/j.cub.2021.03.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 01/14/2021] [Accepted: 03/15/2021] [Indexed: 11/28/2022]
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Alkaff SA, Radhakrishnan K, Nedumaran AM, Liao P, Czarny B. Nanocarriers for Stroke Therapy: Advances and Obstacles in Translating Animal Studies. Int J Nanomedicine 2020; 15:445-464. [PMID: 32021190 PMCID: PMC6982459 DOI: 10.2147/ijn.s231853] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 12/24/2019] [Indexed: 12/17/2022] Open
Abstract
The technology of drug delivery systems (DDS) has expanded into many applications, such as for treating neurological disorders. Nanoparticle DDS offer a unique strategy for targeted transport and improved outcomes of therapeutics. Stroke is likely to benefit from the emergence of this technology though clinical breakthroughs are yet to manifest. This review explores the recent advances in this field and provides insight on the trends, prospects and challenges of translating this technology to clinical application. Carriers of diverse material compositions are presented, with special focus on the surface properties and emphasis on the similarities and inconsistencies among in vivo experimental paradigms. Research attention is scattered among various nanoparticle DDS and various routes of drug administration, which expresses the lack of consistency among studies. Analysis of current literature reveals lipid- and polymer-based DDS as forerunners of DDS for stroke; however, cell membrane-derived vesicles (CMVs) possess the competitive edge due to their innate biocompatibility and superior efficacy. Conversely, inorganic and carbon-based DDS offer different functionalities as well as varied capacity for loading but suffer mainly from poor safety and general lack of investigation in this area. This review supports the existing literature by systematizing presently available data and accounting for the differences in drugs of choice, carrier types, animal models, intervention strategies and outcome parameters.
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Affiliation(s)
- Syed Abdullah Alkaff
- School of Materials Science and Engineering, Nanyang Technological University 639798, Singapore
| | - Krishna Radhakrishnan
- School of Materials Science and Engineering, Nanyang Technological University 639798, Singapore
| | - Anu Maashaa Nedumaran
- School of Materials Science and Engineering, Nanyang Technological University 639798, Singapore
| | - Ping Liao
- Calcium Signalling Laboratory, National Neuroscience Institute 308433, Singapore
| | - Bertrand Czarny
- School of Materials Science and Engineering, Nanyang Technological University 639798, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University 639798, Singapore
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8
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Al-Ahmady ZS. Selective drug delivery approaches to lesioned brain through blood brain barrier disruption. Expert Opin Drug Deliv 2018; 15:335-349. [DOI: 10.1080/17425247.2018.1444601] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Zahraa S. Al-Ahmady
- Nanomedicine Lab, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Heath, University of Manchester, UK
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9
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Shimbo D, Abumiya T, Kurisu K, Osanai T, Shichinohe H, Nakayama N, Kazumata K, Nakamura H, Shimuzu H, Houkin K. Superior Microvascular Perfusion of Infused Liposome-Encapsulated Hemoglobin Prior to Reductions in Infarctions after Transient Focal Cerebral Ischemia. J Stroke Cerebrovasc Dis 2017; 26:2994-3003. [PMID: 28843805 DOI: 10.1016/j.jstrokecerebrovasdis.2017.07.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/20/2017] [Accepted: 07/25/2017] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND The development of cerebral infarction after transient ischemia is attributed to postischemic delayed hypoperfusion in the microvascular region. In the present study, we assessed the microvascular perfusion capacity of infused liposome-encapsulated hemoglobin (LEH) in a therapeutic approach for transient middle cerebral artery occlusion (tMCAO). METHODS Two-hour middle cerebral artery occlusion rats were immediately subjected to intra-arterial infusion of LEH (LEH group) or saline (vehicle group) or no treatment (control group), and then to recanalization. Neurological findings, infarct and edema progression, microvascular endothelial dysfunction, and inflammatory reactions were compared between the 3 groups after 24 hours of reperfusion. Microvascular perfusion in the early phase of reperfusion was evaluated by hemoglobin immunohistochemistry and transmission electron microscopy. RESULTS The LEH group achieved significantly better results in all items evaluated than the other groups. Hemoglobin immunohistochemistry revealed that the number of hemoglobin-positive microvessels was significantly greater in the LEH group than in the other groups (P < .01), with microvascular perfusion being more likely in narrow microvessels (≤5 µm in diameter). An electron microscopic examination revealed that microvessels in the control group were compressed and narrowed by swollen astrocyte end-feet, whereas those in the LEH group had a less deformed appearance and contained LEH particles and erythrocytes. CONCLUSION The results of the present study demonstrated that the infusion of LEH reduced infarctions after tMCAO with more hemoglobin-positive and less deformed microvessels at the early phase of reperfusion, suggesting that the superiority of the microvascular perfusion of LEH mediates its neuroprotective effects.
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Affiliation(s)
- Daisuke Shimbo
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Takeo Abumiya
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
| | - Kota Kurisu
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Toshiya Osanai
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hideo Shichinohe
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Naoki Nakayama
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Ken Kazumata
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hideki Nakamura
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Hiroshi Shimuzu
- Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan
| | - Kiyohiro Houkin
- Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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Taguchi K, Yamasaki K, Sakai H, Maruyama T, Otagiri M. The Use of Hemoglobin Vesicles for Delivering Medicinal Gas for the Treatment of Intractable Disorders. J Pharm Sci 2017; 106:2392-2400. [PMID: 28414143 DOI: 10.1016/j.xphs.2017.04.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/05/2017] [Accepted: 04/07/2017] [Indexed: 01/27/2023]
Abstract
Bioactive gaseous molecules, such as oxygen (O2) and carbon monoxide (CO), are essential elements for most living organisms to maintain their homeostasis and biological activities. An accumulating body of evidence suggests that such molecules can be used in clinics as a medical gas in the treatment of various intractable disorders. Recent developments in hemoglobin-encapsulated liposomes, namely hemoglobin vesicles (HbV), possess great potential for retaining O2 and CO and could lead to strategies for the development of novel pharmacological agents as medical gas donors. HbV with either O2 or CO bound to it has been demonstrated to have therapeutic potential for treating certain intractable disorders and has the possibility to serve as diagnostic and augmenting product by virtue of unique physicochemical characteristics of HbV. The present review provides an overview of the present status of the use of O2- or CO-binding HbV in experimental animal models of intractable disorders and discusses prospective clinical applications of HbV as a medical gas donor.
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Affiliation(s)
- Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan
| | - Hiromi Sakai
- Department of Chemistry, Nara Medical University, Shijo-cho 840, Kashihara, Nara 634-8521, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan; Center for Clinical Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto 860-0082, Japan.
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11
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Vieira DB, Gamarra LF. Getting into the brain: liposome-based strategies for effective drug delivery across the blood-brain barrier. Int J Nanomedicine 2016; 11:5381-5414. [PMID: 27799765 PMCID: PMC5077137 DOI: 10.2147/ijn.s117210] [Citation(s) in RCA: 248] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This review summarizes articles that have been reported in literature on liposome-based strategies for effective drug delivery across the blood–brain barrier. Due to their unique physicochemical characteristics, liposomes have been widely investigated for their application in drug delivery and in vivo bioimaging for the treatment and/or diagnosis of neurological diseases, such as Alzheimer’s, Parkinson’s, stroke, and glioma. Several strategies have been used to deliver drug and/or imaging agents to the brain. Covalent ligation of such macromolecules as peptides, antibodies, and RNA aptamers is an effective method for receptor-targeting liposomes, which allows their blood–brain barrier penetration and/or the delivery of their therapeutic molecule specifically to the disease site. Additionally, methods have been employed for the development of liposomes that can respond to external stimuli. It can be concluded that the development of liposomes for brain delivery is still in its infancy, although these systems have the potential to revolutionize the ways in which medicine is administered.
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Affiliation(s)
| | - Lionel F Gamarra
- Hospital Israelita Albert Einstein, São Paulo, Brazil; Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brazil
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Oz M, Demir EA, Caliskan M, Mogulkoc R, Baltaci AK, Nurullahoglu Atalik KE. 3′,4′-Dihydroxyflavonol attenuates spatial learning and memory impairments in global cerebral ischemia. Nutr Neurosci 2016; 20:119-126. [DOI: 10.1179/1476830514y.0000000159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Mehmet Oz
- Department of Physiology, Faculty of Medicine, University of Selcuk, Konya, Turkey
| | - Enver Ahmet Demir
- Department of Physiology, Faculty of Medicine, University of Selcuk, Konya, Turkey
| | - Merve Caliskan
- Department of Physiology, Faculty of Medicine, University of Selcuk, Konya, Turkey
| | - Rasim Mogulkoc
- Department of Physiology, Faculty of Medicine, University of Selcuk, Konya, Turkey
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13
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Kaneda S, Ishizuka T, Sekiguchi A, Morimoto K, Kasukawa H. Efficacy of Liposome-Encapsulated Hemoglobin in a Rat Model of Cerebral Ischemia. Artif Organs 2014; 38:650-5. [DOI: 10.1111/aor.12358] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Kawaguchi AT, Endo H, Aikawa H, Yamano M, Kawaguchi Y, Haida M, Watanabe T. Effects of liposome-encapsulated hemoglobin on learning ability in tokai high-avoider rat after total brain ischemia and reperfusion. Artif Organs 2014; 38:667-74. [PMID: 25066829 DOI: 10.1111/aor.12352] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Liposome-encapsulated hemoglobin with low O2 -affinity (l-LEH) was shown to be protective in focal brain ischemia and reperfusion (I/R) in rats and primates. We tested l-LEH in the transient whole brain ischemia in the Tokai high-avoider rat (THA), which has been selected, mated, and bred over 77 generations for a high and consistent learning ability determined by the Sidman avoidance test (SAT). Young/naïve (before SAT) and adult/parent (after SAT) THA rats underwent acute and complete four-vessel occlusion in the chest for 3 or 5 min, administration of 2 mL/kg of l-LEH, saline, or homologous washed red blood cells (RBCs), reperfusion, and resuscitation. One week later, all rats underwent SAT, open-field behavioral observation, Morris water maze tests, and morphological study. Whereas young/naïve rats treated with l-LEH retained a rapid and consistent learning curve as in nonischemic controls, THA rats treated with RBCs or saline had retarded learning response on SAT as well as reduced cellularity in the amygdala. Adult/parent rats with established memory on SAT maintained perfect achievement even after I/R. In contrast, l-LEH-treated rats showed no better performance on Morris water maze (function) or cellularity of the CA1 sector of the hippocampus (morphology) compared with the rats treated with RBCs. Although task performance on SAT and Morris water maze appeared antithetical, morphological observations corresponded to the respective functions, suggesting that l-LEH was protective only for the amygdala on SAT tasks but not for the CA1 sector of the hippocampus on spatial orientation as in our previous studies on focal brain I/R, where the cortex was preserved better than basal ganglia.
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Affiliation(s)
- Akira T Kawaguchi
- Department of Cell Transplantation and Regenerative Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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Shimbo D, Abumiya T, Shichinohe H, Nakayama N, Kazumata K, Houkin K. Post-ischemic intra-arterial infusion of liposome-encapsulated hemoglobin can reduce ischemia reperfusion injury. Brain Res 2014; 1554:59-66. [DOI: 10.1016/j.brainres.2014.01.038] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 01/20/2014] [Accepted: 01/23/2014] [Indexed: 11/30/2022]
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Kubo Y, Yanagawa Y, Matsumoto M, Hiraide S, Kobayashi M, Togashi H. Toll-like receptor 7-mediated enhancement of contextual fear memory in mice. Pharmacol Biochem Behav 2012; 102:495-501. [PMID: 22750061 DOI: 10.1016/j.pbb.2012.06.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 06/08/2012] [Accepted: 06/21/2012] [Indexed: 02/06/2023]
Abstract
Toll-like receptor (TLR) 7 recognizes viral single-stranded RNA and triggers production of the type I interferons (IFNs) IFN-α and IFN-β. Imiquimod, a synthetic TLR7 ligand, induces production of type I IFNs and is used clinically as an antiviral and antitumor drug. In the present study, we examined the effect of imiquimod on conditioned and innate fear behaviors in mice. Imiquimod was administered 2, 4, or 15 h before contextual fear conditioning. Imiquimod treatment 4 or 15 h before fear conditioning significantly enhanced context-dependent freezing behavior. This imiquimod-induced enhancement of fear-related behaviors was observed 120 h after fear conditioning. In contrast, imiquimod failed to enhance context-dependent freezing behavior in TLR7 knockout mice. Imiquimod had no significant effect on pain threshold or on innate fear-related behavior, as measured by the elevated plus-maze. The levels of type I IFN mRNA in the brain were significantly increased at 2 h after imiquimod treatment. Imiquimod also increased interleukin (IL)-1β mRNA expression in the brain at 4 h following administration, while mRNA expression of F4/80, a macrophage marker, was unaffected by imiquimod treatment. Our findings suggest that TLR7-mediated signaling enhances contextual fear memory in mice, possibly by inducing the expression of type I IFNs and IL-1β in the brain.
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Affiliation(s)
- Yasunori Kubo
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
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Durham JL, Jordan KA, Devos MJ, Williams EK, Sandstrom NJ. Estradiol protects against hippocampal damage and impairments in fear conditioning resulting from transient global ischemia in mice. Brain Res 2012; 1443:64-74. [PMID: 22305144 DOI: 10.1016/j.brainres.2012.01.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 12/12/2011] [Accepted: 01/07/2012] [Indexed: 01/02/2023]
Abstract
Estradiol protects against hippocampal damage and some learning impairments resulting from transient global ischemia in rats. Here, we seek to validate a mouse model of transient global ischemia and evaluate the effects of estradiol on ischemia-induced hippocampal damage and behavioral impairments. Female C57Bl6/J mice were ovariectomized and implanted with estradiol- or oil-secreting capsules. One week later, mice experienced 15-min of 2-vessel occlusion (2-VO) or sham surgical procedures. Five days later, mice were exposed to a fear conditioning protocol in which a specific context and novel tone were paired with mild footshock. Twenty-four hours following conditioning, contextual fear was assessed by measuring freezing behavior in the conditioned context (in the absence of the tone). This was followed by assessment of cue fear by measuring freezing behavior to the conditioned tone presented in a new context. When tested in the conditioned context, oil-treated mice that experienced 2-VO exhibited a significant reduction in freezing behavior whereas estradiol-treated mice that experienced 2-VO showed no disruption in freezing behavior. Freezing behavior when presented with the conditioned tone was unaffected by either surgery or hormone treatment. These findings suggest that global ischemia causes impairments in performance on the hippocampally-dependent contextual fear task but not conditioned cue-based fear. Furthermore, estradiol prevented the ischemia-induced impairment in contextual fear conditioning. Fluoro-Jade (FJ) staining revealed neuronal degeneration throughout the dorsal hippocampus of mice that experienced 2-VO. Estradiol treatment reduced the number of FJ+ cells in CA1 and CA2, but not in CA3 or in the dentate gyrus. Together, these findings suggest that 15 min of global ischemia causes extensive hippocampal neurodegeneration and disrupts contextual fear conditioning processes in mice and that estradiol protects against these adverse effects.
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Affiliation(s)
- Jennah L Durham
- Department of Psychology, Williams College, Williamstown, MA 01267, USA
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Donepezil attenuates hippocampal neuronal damage and cognitive deficits after global cerebral ischemia in gerbils. Neurosci Lett 2012; 510:29-33. [PMID: 22240104 DOI: 10.1016/j.neulet.2011.12.064] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 12/12/2011] [Accepted: 12/28/2011] [Indexed: 01/25/2023]
Abstract
Decreased cerebral blood flow causes cognitive impairments and neuronal injury in vascular dementia. In the present study, we reported that donepezil, a cholinesterase inhibitor, improved transient global cerebral ischemia-induced spatial memory impairment in gerbils. Treatment with 5mg/kg of donepezil for 21 consecutive days following a 10-min period of ischemia significantly inhibited delayed neuronal death in the hippocampal CA1 region. In Morris water maze test, memory impairment was significantly improved by donepezil treatment. Western blot analysis showed that donepezil treatment prevented reductions in p-CaMKII and p-CREB protein levels in the hippocampus. These results suggest that donepezil attenuates the memory deficit induced by transient global cerebral ischemia and this neuroprotection may be associated with the phosphorylation of CaMKII and CERB in the hippocampus.
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Regulation of cerebral blood flow in the hippocampus by neuronal activation through the perforant path: Relationship between hippocampal blood flow and neuronal plasticity. Brain Res 2011; 1415:1-7. [DOI: 10.1016/j.brainres.2011.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 08/03/2011] [Accepted: 08/03/2011] [Indexed: 01/27/2023]
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