Updated on 2024/04/26

写真a

 
MIKUNI Takayasu
 
Organization
Brain Research Institute Professor
Title
Professor
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The Best Research Achievement in Research Career

    • 【Papers】 Virus-Mediated Genome Editing via Homology-Directed Repair in Mitotic and Postmitotic Cells in Mammalian Brain  2017.11

    • 【Papers】 High-Throughput, High-Resolution Mapping of Protein Localization in Mammalian Brain by In Vivo Genome Editing  2016.6

    • 【Papers】 Arc/Arg3.1 Is a Postsynaptic Mediator of Activity-Dependent Synapse Elimination in the Developing Cerebellum  2013.6

Degree

  • Ph.D. (Medical Science) ( 2012.3   The University of Tokyo )

  • M.D. ( 2003.3   Kyoto University )

Research Interests

  • 脳プロ

  • 小脳

  • ゲノム編集

  • 包括脳ネットワーク

  • シナプス形成

  • シナプス可塑性

  • イメージング

  • 発達

  • シナプス

Research Areas

  • Life Science / Neuroscience-general

Research History (researchmap)

  • Niigata University   Brain Research Institute   Professor

    2018.9

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  • Max Planck Florida Institute for Neuroscience   Neuronal Signal Transduction Group   Research Scientist

    2017.2 - 2018.8

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  • JST   PRESTO (Sakigake) Researcher

    2016.10 - 2020.3

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  • Max Planck Florida Institute for Neuroscience   Neuronal Signal Transduction Group   Research fellow

    2016.4 - 2017.1

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  • Human Frontier Science Program (HFSP)   Long-term Fellow

    2014.4 - 2016.9

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  • Max Planck Florida Institute for Neuroscience   Neuronal Signal Transduction Group   Postdoctoral fellow

    2013.4 - 2016.3

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  • Dept. Neurophysiol., Grad. Sch. Med., Univ. Tokyo   Postdoctoral reseacher

    2012.4 - 2013.3

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Research History

  • Niigata University   Brain Research Institute Basic Neuroscience Branch Department of Cellular Neuropathology   Professor

    2018.9

Education

  • The University of Tokyo   Graduate School of Medicine   機能生物学専攻神経生理学分野

    2008.4 - 2012.3

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  • Kyoto University   School of Medicine   医学科

    1997.4 - 2003.3

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Professional Memberships

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Qualification acquired

  • Doctor

 

Papers

  • General Design Strategy to Precisely Control the Emission of Fluorophores via a Twisted Intramolecular Charge Transfer (TICT) Process. International journal

    Kenjiro Hanaoka, Shimpei Iwaki, Kiyoshi Yagi, Takuya Myochin, Takayuki Ikeno, Hisashi Ohno, Eita Sasaki, Toru Komatsu, Tasuku Ueno, Motokazu Uchigashima, Takayasu Mikuni, Kazuki Tainaka, Shinya Tahara, Satoshi Takeuchi, Tahei Tahara, Masanobu Uchiyama, Tetsuo Nagano, Yasuteru Urano

    Journal of the American Chemical Society   144 ( 43 )   19778 - 19790   2022.10

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    Fluorogenic probes for bioimaging have become essential tools for life science and medicine, and the key to their development is a precise understanding of the mechanisms available for fluorescence off/on control, such as photoinduced electron transfer (PeT) and Förster resonance energy transfer (FRET). Here we establish a new molecular design strategy to rationally develop activatable fluorescent probes, which exhibit a fluorescence off/on change in response to target biomolecules, by controlling the twisted intramolecular charge transfer (TICT) process. This approach was developed on the basis of a thorough investigation of the fluorescence quenching mechanism of N-phenyl rhodamine dyes (commercially available as the QSY series) by means of time-dependent density functional theory (TD-DFT) calculations and photophysical evaluation of their derivatives. To illustrate and validate this TICT-based design strategy, we employed it to develop practical fluorogenic probes for HaloTag and SNAP-tag. We further show that the TICT-controlled fluorescence off/on mechanism is generalizable by synthesizing a Si-rhodamine-based fluorogenic probe for HaloTag, thus providing a palette of chemical dyes that spans the visible and near-infrared range.

    DOI: 10.1021/jacs.2c06397

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  • Methodological approaches to understand the molecular mechanism of structural plasticity of dendritic spines. International journal

    Takayasu Mikuni, Motokazu Uchigashima

    The European journal of neuroscience   54 ( 8 )   6902 - 6911   2021.10

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    Dendritic spines are tiny protrusions emanating from the neuronal dendrites, typically housing single excitatory postsynapses. Structural plasticity of dendritic spines is considered to be essential for synaptic functional plasticity and also reorganization of neural circuits during learning and memory. Structural plasticity of spines is mediated by complex biochemical signaling with various spatial and temporal scales. A variety of methods based on pharmacological, genetic, molecular, imaging and optical approaches has been developed and applied to dissect the complex signal transduction pathways. In this review, we overview both conventional and new methodological approaches to identify, monitor and manipulate key molecules for structural plasticity of dendritic spines, ultimately aiming to understand the molecular mechanism of learning and memory in behaving animals.

    DOI: 10.1111/ejn.14734

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  • Genome editing-based approaches for imaging protein localization and dynamics in the mammalian brain. Reviewed

    Mikuni T

    Neuroscience research   2019.4

  • Retrograde Signaling from Progranulin to Sort1 Counteracts Synapse Elimination in the Developing Cerebellum. Reviewed International journal

    Naofumi Uesaka, Manabu Abe, Kohtarou Konno, Maya Yamazaki, Kazuto Sakoori, Takaki Watanabe, Tzu-Huei Kao, Takayasu Mikuni, Masahiko Watanabe, Kenji Sakimura, Masanobu Kano

    Neuron   97 ( 4 )   796 - 805   2018.2

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    Elimination of redundant synapses formed early in development and strengthening of necessary connections are crucial for shaping functional neural circuits. Purkinje cells (PCs) in the neonatal cerebellum are innervated by multiple climbing fibers (CFs) with similar strengths. A single CF is strengthened whereas the other CFs are eliminated in each PC during postnatal development. The underlying mechanisms, particularly for the strengthening of single CFs, are poorly understood. Here we report that progranulin, a multi-functional growth factor implicated in the pathogenesis of frontotemporal dementia, strengthens developing CF synaptic inputs and counteracts their elimination from postnatal day 11 to 16. Progranulin derived from PCs acts retrogradely onto its putative receptor Sort1 on CFs. This effect is independent of semaphorin 3A, another retrograde signaling molecule that counteracts CF synapse elimination. We propose that progranulin-Sort1 signaling strengthens and maintains developing CF inputs, and may contribute to selection of single "winner" CFs that survive synapse elimination.

    DOI: 10.1016/j.neuron.2018.01.018

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  • Virus-Mediated Genome Editing via Homology-Directed Repair in Mitotic and Postmitotic Cells in Mammalian Brain Reviewed

    Jun Nishiyama, Takayasu Mikuni, Ryohei Yasuda

    NEURON   96 ( 4 )   755 - +   2017.11

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:CELL PRESS  

    Precise genome editing via homology-directed repair (HDR) in targeted cells, particularly in vivo, provides an invaluable tool for biomedical research. However, HDR has been considered to be largely restricted to dividing cells, making it challenging to apply the technique in postmitotic neurons. Here we show that precise genome editing via HDR is possible in mature postmitotic neurons as well as mitotic cells in mice brain by combining CRISPR-Cas9-mediated DNA cleavage and the efficient delivery of donor template with adeno-associated virus (AAV). Using this strategy, we achieved efficient tagging of endogenous proteins in primary and organotypic cultures in vitro and developing, adult, aged, and pathological brains in vivo. Thus, AAV- and CRISPR-Cas9-mediated HDR will be broadly useful for precise genome editing in basic and translational neuroscience.

    DOI: 10.1016/j.neuron.2017.10.004

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  • Alternative splicing in the C-terminal tail of Ca(v)2.1 is essential for preventing a neurological disease in mice Reviewed

    Tomonori Aikawa, Takaki Watanabe, Taisuke Miyazaki, Takayasu Mikuni, Minoru Wakamori, Miyano Sakurai, Hidenori Aizawa, Nobutaka Ishizu, Masahiko Watanabe, Masanobu Kano, Hidehiro Mizusawa, Kei Watase

    HUMAN MOLECULAR GENETICS   26 ( 16 )   3094 - 3104   2017.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:OXFORD UNIV PRESS  

    Alternative splicing (AS) that occurs at the final coding exon (exon 47) of the Ca(v)2.1 voltage-gated calcium channel (VGCC) gene produces two major isoforms in the brain, MPI and MPc. These isoforms differ in their splice acceptor sites; human MPI is translated into a polyglutamine tract associated with spinocerebellar ataxia type 6 (SCA6), whereas MPc splices to an immediate stop codon, resulting in a shorter cytoplasmic tail. To gain insight into the functional role of the AS in vivo and whether modulating the splice patterns at this locus can be a potential therapeutic strategy for SCA6, here we created knockin mice that exclusively express MPc by inserting the splice-site mutation. The resultant Cacna1a(CtmKO/CtmKO) mice developed non-progressive neurological phenotypes, featuring early-onset ataxia and absence seizure without significant alterations in the basic properties of the channel. Interactions of Ca(v)2.1 with Ca-v beta 4 and Rimbp2 were significantly reduced while those with GABA(B2) were enhanced in the cerebellum of Cacna1a(CtmKO/CtmKO) mice. Treatment with the GABA(B) antagonist CGP35348 partially rescued the motor impairments seen in Cacna1a(CtmKO/CtmKO) mice. These results suggest that the carboxyl-terminal domain of Ca(v)2.1 is not essential for maintaining the basic properties of the channel in the cerebellar Purkinje neurons but is involved in multiple interactions of Ca(v)2.1 with other proteins, and plays an essential role in preventing a complex neurological disease.

    DOI: 10.1093/hmg/ddx193

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  • High-Throughput, High-Resolution Mapping of Protein Localization in Mammalian Brain by In Vivo Genome Editing Reviewed

    Takayasu Mikuni, Jun Nishiyama, Ye Sun, Naomi Kamasawa, Ryohei Yasuda

    CELL   165 ( 7 )   1803 - 1817   2016.6

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:CELL PRESS  

    A scalable and high-throughput method to identify precise subcellular localization of endogenous proteins is essential for integrative understanding of a cell at the molecular level. Here, we developed a simple and generalizable technique to image endogenous proteins with high specificity, resolution, and contrast in single cells in mammalian brain tissue. The technique, single-cell labeling of endogenous proteins by clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9-mediated homology-directed repair (SLENDR), uses in vivo genome editing to insert a sequence encoding an epitope tag or a fluorescent protein to a gene of interest by CRISPR-Cas9-mediated homology-directed repair (HDR). Single-cell, HDR-mediated genome editing was achieved by delivering the editing machinery to dividing neuronal progenitors through in utero electroporation. We demonstrate that SLENDR allows rapid determination of the localization and dynamics of many endogenous proteins in various cell types, regions, and ages in the brain. Thus, SLENDR provides a high-throughput platform to map the subcellular localization of endogenous proteins with the resolution of micro-to nanometers in the brain.

    DOI: 10.1016/j.cell.2016.04.044

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  • Correlative Ultrastructural Analysis of Functionally Modulated Synapses Using Automatic Tape-Collecting Ultramicrotome - SEM Array Tomography. Reviewed

    Kamasawa N, Sun Y, Mikuni T, Guerrero-Given D, Yasuda R

    Microsc. Microanal.   21 ( Suppl 3 )   1271 - 1272   2015.8

  • Retrograde Signaling for Climbing Fiber Synapse Elimination Reviewed

    Naofumi Uesaka, Motokazu Uchigashima, Takayasu Mikuni, Hirokazu Hirai, Masahiko Watanabe, Masanobu Kano

    CEREBELLUM   14 ( 1 )   4 - 7   2015.2

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SPRINGER  

    Neurons form exuberant synapses with target cells early in development. Then, necessary synapses are selectively strengthened whereas unnecessary connections are weakened and eventually eliminated during postnatal development. This process is known as synapse elimination and is a crucial step for shaping immature neural circuits into functionally mature versions. Accumulating evidence suggests that retrograde signaling from postsynaptic cells regulates synapse elimination, but the underlying mechanisms remain unknown. Here, we show that semaphorin3A (Sema3A) and semaphorin7A (Sema7A) mediate retrograde signals for elimination of redundant climbing fiber (CF) to Purkinje cell (PC) synapses in the developing cerebellum, a representative model of synapse elimination in the central nervous system. We picked up candidate retrograde signaling molecules that are expressed in PCs during the period of CF synapse elimination and the receptors of these candidate molecules that are present in CFs. We then assessed the effects of lentivirus-mediated RNAi-knockdown of these molecules on CF synapse elimination. By this systematic screening, we found that knockdown of Sema3A in PCs or its co-receptor, plexinA4 (PlxnA4), in CFs accelerated CF synapse elimination and decreased CF-mediated synaptic inputs. Conversely, knockdown of Sema7A in PCs or either of the two receptors for Sema7A, plexinC1 (PlxnC1) and integrinB1 (ItgB1), in CFs impaired CF synapse elimination. Importantly, the effect of Sema7A involves signaling by type 1 metabotropic glutamate receptor (mGluR1), a canonical pathway in PCs for the final stage of CF synapse elimination. These results demonstrate that specific semaphorins act as retrograde signaling molecules and regulate distinct processes of CF synapse elimination during postnatal cerebellar development.

    DOI: 10.1007/s12311-014-0615-y

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  • Global Scaling Down of Excitatory Postsynaptic Responses in Cerebellar Purkinje Cells Impairs Developmental Synapse Elimination Reviewed

    Shinya Kawata, Taisuke Miyazaki, Maya Yamazaki, Takayasu Mikuni, Miwako Yamasaki, Kouichi Hashimoto, Masahiko Watanabe, Kenji Sakimura, Masanobu Kano

    CELL REPORTS   8 ( 4 )   1119 - 1129   2014.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:CELL PRESS  

    Synapse elimination is crucial for precise neural circuit formation during postnatal development. We examined how relative differences in synaptic strengths among competing inputs and/or absolute synaptic strengths contribute to climbing fiber (CF) to Purkinje cell (PC) synapse elimination in the cerebellum. We generated mice with PC-selective deletion of stargazin (TARP gamma-2), the major AMPA receptor auxiliary subunit in PCs (gamma-2 PC-KO mice). Whereas relative differences between "strong'' and "weak'' CF-mediated postsynaptic response are preserved, absolute strengths of CF inputs are scaled down globally in PCs of gamma-2 PC-KO mice. Although the early phase of CF elimination is normal, dendritic translocation of the strongest CF and the late phase of CF elimination that requires Ca2+-dependent activation of Arc/Arg3.1 in PCs are both impaired in gamma-2 PC-KO mice. We conclude that, although relative differences in CF synaptic inputs are initially essential, proper synaptic scaling is crucial for accomplishing CF synapse elimination.

    DOI: 10.1016/j.celrep.2014.07.014

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  • Retrograde semaphorin signaling regulates synapse elimination in the developing mouse brain Reviewed

    Naofumi Uesaka, Motokazu Uchigashima, Takayasu Mikuni, Takanobu Nakazawa, Harumi Nakao, Hirokazu Hirai, Atsu Aiba, Masahiko Watanabe, Masanobu Kano

    SCIENCE   344 ( 6187 )   1020 - 1023   2014.5

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:AMER ASSOC ADVANCEMENT SCIENCE  

    Neural circuits are shaped by elimination of early-formed redundant synapses during postnatal development. Retrograde signaling from postsynaptic cells regulates synapse elimination. In this work, we identified semaphorins, a family of versatile cell recognition molecules, as retrograde signals for elimination of redundant climbing fiber to Purkinje cell synapses in developing mouse cerebellum. Knockdown of Sema3A, a secreted semaphorin, in Purkinje cells or its receptor in climbing fibers accelerated synapse elimination during postnatal day 8 (P8) to P18. Conversely, knockdown of Sema7A, a membrane-anchored semaphorin, in Purkinje cells or either of its two receptors in climbing fibers impaired synapse elimination after P15. The effect of Sema7A involves signaling by metabotropic glutamate receptor 1, a canonical pathway for climbing fiber synapse elimination. These findings define how semaphorins retrogradely regulate multiple processes of synapse elimination.

    DOI: 10.1126/science.1252514

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  • Arc/Arg3.1 Is a Postsynaptic Mediator of Activity-Dependent Synapse Elimination in the Developing Cerebellum Reviewed

    Takayasu Mikuni, Naofumi Uesaka, Hiroyuki Okuno, Hirokazu Hirai, Karl Deisseroth, Haruhiko Bito, Masanobu Kano

    NEURON   78 ( 6 )   1024 - 1035   2013.6

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    Neural circuits are shaped by activity-dependent elimination of redundant synapses during postnatal development. In many systems, postsynaptic activity is known to be crucial, but the precise mechanisms remain elusive. Here, we report that the immediate early gene Arc/Arg3.1 mediates elimination of surplus climbing fiber (CF) to Purkinje cell (PC) synapses in the developing cerebellum. CF synapse elimination was accelerated when activity of channelrhodopsin-2-expressing PCs was elevated by 2-day photostimulation. This acceleration was suppressed by PC-specific knockdown of either the P/Q-type voltage-dependent Ca2+ channels (VDCCs) or Arc. PC-specific Arc knockdown had no appreciable effect until around postnatal day 11 but significantly impaired CF synapse elimination thereafter, leaving redundant CF terminals on PC somata. The effect of Arc knockdown was occluded by simultaneous knockdown of P/Q-type VDCCs in PCs. We conclude that Arc mediates the final stage of CF synapse elimination downstream of P/Q-type VDCCs by removing CF synapses from PC somata.

    DOI: 10.1016/j.neuron.2013.04.036

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  • Difference in synaptic strengths among competing inputs and absolute synaptic strengths contribute to distinct phase of climbing fiber synapse development in cerebellum Reviewed

    Kawata Shinya, Hashimoto Kouichi, Yamazaki Maya, Miyazaki Taisuke, Yamasaki Miwako, Mikuni Takayasu, Watanabe Masahiko, Sakimura Kenji, Kano Masanobu

    JOURNAL OF PHYSIOLOGICAL SCIENCES   63   S188   2013

  • Organotypic Coculture Preparation for the Study of Developmental Synapse Elimination in Mammalian Brain Reviewed

    Naofumi Uesaka, Takayasu Mikuni, Kouichi Hashimoto, Hirokazu Hirai, Kenji Sakimura, Masanobu Kano

    JOURNAL OF NEUROSCIENCE   32 ( 34 )   11657 - 11670   2012.8

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:SOC NEUROSCIENCE  

    We developed an organotypic coculture preparation allowing fast and efficient identification of molecules that regulate developmental synapse elimination in the mammalian brain. This coculture consists of a cerebellar slice obtained from rat or mouse at postnatal day 9 (P9) or P10 and a medullary explant containing the inferior olive dissected from rat at embryonic day 15. Weverified that climbing fibers (CFs), the axons of inferior olivary neurons, formed functional synapses onto Purkinje cells (PCs) in the cerebellum of cocultures. PCs were initially reinnervated by multiple CFs with similar strengths. Surplus CFs were eliminated subsequently, and the remaining CFs became stronger. These changes are similar to those occurring in developing cerebellum in vivo. Importantly, the changes in CF innervations in cocultures involved the same molecules required for CF synapse elimination in vivo, including NMDA receptor, type 1 metabotropic glutamate receptor and glutamate receptor delta 2 (GluR delta 2). We demonstrate that gain-and loss-of-function analyses can be efficiently performed by lentiviral-mediated overexpression and RNAi-induced knockdown of GluR delta 2. Using this approach, we identified neuroligin-2 as a novel molecule that promotes CF synapse elimination in postsynaptic PCs. Thus, our coculture preparation will greatly facilitate the elucidation of molecular mechanisms of synapse elimination.

    DOI: 10.1523/JNEUROSCI.1097-12.2012

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  • Synapse type-independent degradation of the endocannabinoid 2-arachidonoylglycerol after retrograde synaptic suppression Reviewed

    Asami Tanimura, Motokazu Uchigashima, Maya Yamazaki, Naofumi Uesaka, Takayasu Mikuni, Manabu Abe, Kouichi Hashimoto, Masahiko Watanabe, Kenji Sakimura, Masanobu Kano

    PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA   109 ( 30 )   12195 - 12200   2012.7

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:NATL ACAD SCIENCES  

    The endocannabinoid 2-arachidonoylglycerol (2-AG) mediates retrograde synaptic suppression. Although the mechanisms of 2AG production are well characterized, how 2-AG is degraded is less clearly understood. Here we found that expression of the 2-AG hydrolyzing enzyme monoacylglycerol lipase (MGL) was highly heterogeneous in the cerebellum, being rich within parallel fiber (PF) terminals, weak in Bergman glia (BG), and absent in other synaptic terminals. Despite this highly selective MGL expression pattern, 2-AG-mediated retrograde suppression was significantly prolonged at not only PF-Purkinje cell (PC) synapses but also climbing fiber-PC synapses in granule cell-specific MGL knockout (MGL-KO) mice whose cerebellar MGL expression was confined to the BG. Virus-mediated expression of MGL into the BG of global MGL-KO mice significantly shortened 2-AG-mediated retrograde suppression at PF-PC synapses. Furthermore, contribution of MGL to termination of 2-AG signaling depended on the distance from MGL-rich PFs to inhibitory synaptic terminals. Thus, 2-AG is degraded in a synapse-type independent manner by MGL present in PFs and the BG. The results of the present study strongly suggest that MGL regulates 2-AG signaling rather broadly within a certain range of neural tissue, although MGL expression is heterogeneous and limited to a subset of nerve terminals and astrocytes.

    DOI: 10.1073/pnas.1204404109

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  • Initial and Long-Term Effects of Cloxazolam With Intractable Epilepsy Reviewed

    Nobusuke Kimura, Tatsuya Fujii, Tomoko Miyajima, Tomohiro Kumada, Takayasu Mikuni, Masatoshi Ito

    PEDIATRIC NEUROLOGY   43 ( 6 )   403 - 406   2010.12

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:ELSEVIER SCIENCE INC  

    Cloxazolam has been used mainly as an anxiolytic agent. The present study was designed to evaluate the effectiveness of cloxazolam as an add-on antiepileptic drug in patients with intractable epilepsy. A total of 32 patients with intractable epilepsy were treated with cloxazolam: 13 with generalized epilepsy, 15 with focal epilepsy, and 4 with undetermined type of epilepsy. The initial effects were evaluated at 1 month after reaching a maintenance dose (0.3-0.5 mg/kg). The long-term effects were investigated at 2 years after reaching a maintenance dose. With cloxazolam, seizure frequency was reduced by >= 50% in 19/32 patients (59%) during initial therapy and in 6/23 patients (26%) during long-term therapy. Two became seizure free throughout the cloxazolam therapy. During initial therapy, 8/32 patients (25%) developed 11 episodes of adverse events during the initial therapy, including 5 with drowsiness, 3 with hyperactivity, 2 with irritability, and 1 with loss of appetite. During long-term therapy, 2/23 (9%) developed drowsiness. The mean dose of cloxazolam in patients with an effective response was 0.30 +/- 0.18 mg/kg for initial therapy and 0.26 +/- 0.20 mg/kg for long-term therapy. Seven of the 19 effective responders developed tolerance (37%). Cloxazolam is an effective and safe antiepileptic drug for intractable epilepsy. (C) 2010 by Elsevier Inc. All rights reserved.

    DOI: 10.1016/j.pediatrneurol.2010.06.005

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  • Sulthiame treatment for patients with intractable epilepsy Reviewed

    Tomoko Miyajima, Tomohiro Kumada, Nobusuke Kimura, Takayasu Mikuni, Tatsuya Fujii

    No To Hattatsu   41 ( 1 )   17 - 20   2009

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:1  

    We examined the antiepileptic effect and side effects of sulthiame in 28 patients with intractable epilepsy. The patients' ages ranged from 6 months to 34 years (mean:8 years 7 months), and 26 of them were under 18 years old. Nineteen patients had severe physical and mental disabilities. Sixteen patients had generalized seizures, and 12 had partial seizures. Sulthiame was administered at the dose of 50-300 mg/day (4-14 mg/kg body weight) as add-on therapy in all except one patient. Among the 28 patients, two with complex partial seizures (7%) became seizure-free. Eight patients (29%) (6 patients with generalized seizures and 2 patients with partial seizures) showed seizure reduction by &gt
    50%. Among these 10 patients who showed positive responses, six developed tolerance within 2-5 months. Side-effects were observed in 5 patients, including enuresis, drowsiness, and drooling, none of which caused discontinuation of treatment. Therefore, we conclude that sulthiame is an effective and safe antiepileptic drug for the treatment of intractable epilepsy.

    DOI: 10.11251/ojjscn.41.17

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MISC

  • 【細胞多様性解明に資する光技術-見て,動かす】見えなかったものを視る 内在性タンパク質の標識技術

    三國 貴康, 西山 潤

    生体の科学   68 ( 5 )   434 - 435   2017.10

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    Language:Japanese   Publisher:(公財)金原一郎記念医学医療振興財団  

    複雑な形態を示す神経細胞やグリアでは,タンパク質の細胞内局在を明らかにすることがその機能を理解するために不可欠である。本稿では,生体脳で正確なゲノム編集を行うことで内在性タンパク質を特異的に標識できる技術"SLENDR法"を紹介する。標識された内在性タンパク質を様々な顕微鏡で観察することによって,脳組織中の1細胞で,内在性タンパク質の細胞内局在を正確に,迅速に,ナノメートルレベルの高分解能で検出することができる。(著者抄録)

    DOI: 10.11477/mf.2425200681

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  • Cav2.1カルボキシル末端細胞質内ドメインの病態生理学的意義の検討

    相川 知徳, 宮崎 太輔, 三國 貴康, 重本 隆一, 若森 実, 狩野 方伸, 渡邊 雅彦, 水澤 英洋, 渡瀬 啓

    臨床神経学   53 ( 12 )   1495 - 1495   2013.12

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    Language:Japanese   Publisher:(一社)日本神経学会  

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  • てんかんとの鑑別が困難な偽発作を合併した前頭葉てんかんと思われた一例

    木村 暢佑, 伊藤 正利, 三国 貴康, 宮嶋 智子, 楠 隆, 鬼頭 敏幸, 藤井 達哉

    てんかん研究   28 ( 3 )   447 - 448   2011.1

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    Language:Japanese   Publisher:(一社)日本てんかん学会  

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  • Roles of Purkinje cell activity in climbing fiber synapse elimination in an organotypic coculture preparation of the cerebellum and medulla oblongata

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    NEUROSCIENCE RESEARCH   71   E93 - E93   2011

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    Language:English   Publishing type:Research paper, summary (international conference)   Publisher:ELSEVIER IRELAND LTD  

    DOI: 10.1016/j.neures.2011.07.398

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  • Synapse "non-specific" degradation of the endocannabinoid 2-arachidonoylglycerol mediating depolarization-induced retrograde synaptic suppression in cerebellar Purkinje cells

    Asami Tanimura, Maya Yamazaki, Motokazu Uchigashima, Naofumi Uesaka, Takayasu Mikuni, Kouichi Hashimoto, Masahiko Watanabe, Kenji Sakimura, Masanobu Kano

    NEUROSCIENCE RESEARCH   71   E56 - E56   2011

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    Language:English   Publishing type:Research paper, summary (international conference)   Publisher:ELSEVIER IRELAND LTD  

    DOI: 10.1016/j.neures.2011.07.235

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  • 小脳と延髄との共培養標本を用いたシナプス発達のメカニズムを解明するためのアプローチ方法(An in vitro coculture preparation suitable for investigating the mechanisms of synapse development in rodent cerebellum)

    上阪 直史, 三國 貴康, 狩野 方伸

    神経化学   49 ( 2-3 )   481 - 481   2010.8

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  • 中枢神経系の組織培養細胞における効果的な神経活動の操作(Effective modification of neural activity in CNS organotypic cultures)

    三國 貴康, 上阪 直史, 狩野 方伸

    神経化学   49 ( 2-3 )   539 - 539   2010.8

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  • An in vitro coculture preparation suitable for investigating the mechanisms of synapse development in rodent cerebellum

    Naofumi Uesaka, Takayasu Mikuni, Masanobu Kano

    NEUROSCIENCE RESEARCH   68   E61 - E61   2010

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    DOI: 10.1016/j.neures.2010.07.035

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  • Effective modification of neural activity in CNS organotypic cultures

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    NEUROSCIENCE RESEARCH   68   E135 - E135   2010

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    DOI: 10.1016/j.neures.2010.07.2171

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  • Applications of gene transfer techniques to CNS organotypic cultures

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    JOURNAL OF PHYSIOLOGICAL SCIENCES   60   S135 - S135   2010

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  • 原発性卵巣機能低下症を合併したAtaxia telangiectasia like disorderの1女児例

    加藤 竹雄, 柴田 実, 粟屋 智就, 山中 康成, 三國 貴康

    脳と発達   41 ( Suppl. )   S405 - S405   2009.5

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  • 難治性てんかんに対するsulthiameの効果

    宮嶋 智子, 熊田 知浩, 木村 暢佑, 三國 貴康, 藤井 達哉

    脳と発達   41 ( 1 )   17 - 20   2009.1

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    難治性てんかん患者28例にsulthiame(ST)を投与して、発作に対する効果と副作用を調べた。対象の年齢は6ヵ月から34歳(平均8歳7ヵ月)で、26例は18歳未満であった。対象のうち、19例は、大島分類1または2の重症心身障害児であった。対象の発作は、全般発作が16例、部分発作が12例であった。STの投与量は4〜14mg/kgで、1例を除き、他剤に付加投与した。28例中、発作消失が2例(7%)みられ、いずれも複雑部分発作であった。発作半減は8例(29%)みられ、全般発作6例、部分発作2例であった。発作消失・半減をあわせた10例のうち、6例で耐性が早期(2〜5ヵ月)にみられた。副作用は5例において、遺尿・夜尿・眠気・分泌物増加がみられたが、副作用のためにSTを中止した例はなかった。STは安全な薬であり、難治性てんかんに試みてよい薬と考えられた。(著者抄録)

    DOI: 10.11251/ojjscn.41.17

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  • Gene transfer techniques for CNS organotypic cultures

    Naofumi Uesaka, Takayasu Mikuni, Masanobu Kano

    NEUROSCIENCE RESEARCH   65   S132 - S133   2009

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    DOI: 10.1016/j.neures.2009.09.646

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  • Viscosity regulating pectin solution and calcium lactate increase the viscosity of milk and decrease the severity of gastroesophageal reflex disease in the children with severe motor and intellectual disabilities

    KUMADA T, MIKUNI T, KIMURA N, MIYAJIMA T, FUJII T

    NO TO HATTATSU   40 ( 6 )   487 - 489   2008.11

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    DOI: 10.11251/ojjscn1969.40.487

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  • 摂食障害の治療におけるPIカテーテルの有効性

    諸賀香織, 三國貴康, 木村暢佑, 熊田知浩, 宮嶋智子, 楠隆, 鬼頭敏幸, 藤井達哉

    日本小児科学会雑誌   112 ( 10 )   1585 - 1585   2008.10

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  • 粘度調整食品ペクチン液と乳酸カルシウムによるミルクの粘度増加と重症心身障害児の胃食道逆流症の改善効果の検討

    熊田 知浩, 三國 貴康, 木村 暢佑, 宮嶋 智子, 藤井 達哉

    脳と発達   40 ( 6 )   487 - 489   2008.10

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    オストワルド粘度計を用いてミルクと粘度調整食品ペクチン液(REF-P1、商品名REF-P1)と乳酸カルシウムの混合液の粘度変化を調べた。混合液のカルシウム濃度に比例して、混合液の粘度は指数関数的に増加した。至適粘度を得るためのミルク、REF-P1、乳酸カルシウムの組成を求めることができた。胃食道逆流症を合併する重症心身障害児でミルクを主栄養源にしている乳児に対し、至適粘度を得られる組成でミルク、REF-P1、乳酸カルシウムの注入を試みたが、胃食道逆流症の症状改善を得られなかった。一方で粘度の低い組成での注入で胃食道逆流症に効果のあった症例も経験しており、REF-P1の有効性には粘度以外の要因も関係している可能性が示唆された。(著者抄録)

    DOI: 10.11251/ojjscn1969.40.487

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  • 難治てんかんに対するTopiramateの有効性の検討

    熊田知浩, 宮嶋智子, 木村暢佑, 三國貴康, 小田望, 下村英毅, 楠隆, 鬼頭敏幸, 藤井達哉

    てんかん研究   26 ( 2 )   137 - 299   2008.9

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  • 重症心身障害児に合併したInfantile spasmsに対するACTH治療の検討

    熊田 知浩, 三國 貴康, 木村 暢佑, 宮嶋 智子, 藤井 達哉

    脳と発達   40 ( Suppl. )   S389 - S389   2008.5

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    A one-year-old female patient with infantile spasms who suffered from chronic renal failure was treated with ACTH for the control of frequent tonic spasms. She received 0.005mg/kg of ACTH for 7 days and then 0.01mg/kg for 12 days daily. From 12 days after initiation of the treatment, tonic spasms and hypsarrythmia observed on electroencephalography disappeared. During the ACTH treatment, hypertension and gastric bleeding developed, and persisted even with antihypertensive drugs and a H 2-blocker treatments. During the ACTH therapy, the serum cortisol level was higher than that in control subjects. Recent advances regarding the metabolism of cortisol have shown that the inactivation of cortisol is impaired in patients with chronic renal failure and that clearance of cortisol from serum is decreased in such patients. It is suggested that the same mechanism was involved in the present patient during the ACTH therapy and that adverse effects of ACTH were related to the high cortisol level in the serum. We conclude that the dose and duration of ACTH therapy should be determined by careful monitoring for the adverse effects of ACTH, and that the serum cortisol level might be a predictor of the side effects of ACTH therapy in a patient with chronic renal failure.

    DOI: 10.11251/ojjscn1969.40.397

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  • 滋賀県における機械的咳介助装置(MAC)の在宅使用への公的補助の取り組み

    藤井 達哉, 宮嶋 智子, 熊田 知浩, 木村 暢佑, 三國 貴康

    脳と発達   40 ( Suppl. )   S283 - S283   2008.5

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  • 当科における二重盲検法による食物負荷試験の試み

    西出佳奈, 楠隆, 三國貴康, 木村暢佑, 熊田智浩, 宮嶋智子, 鬼頭敏幸, 藤井達哉, 坂上一美, 高田美雪

    日本小児科学会雑誌   112 ( 4 )   778   2008.4

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  • 要注意 この感染症にこの合併症 アデノウイルス3型による脳症

    三國貴康

    小児内科   40 ( 3 )   547-548 - 548   2008.3

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  • 家族性痙性対麻痺と前頭葉てんかんを合併した姉弟例

    熊田知浩, 伊藤正利, 三國貴康, 木村暢祐, 宮嶋智子, 藤井達哉

    てんかん研究   25 ( 3 )   294 - 294   2007.9

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  • 難治てんかんに対するGabapentinの効果

    三國貴康, 木村暢佑, 熊田知浩, 宮嶋智子, 藤井達哉, 伊藤正利

    てんかん研究   25 ( 3 )   316 - 316   2007.9

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  • O2-59 Gabapentin treatment for patients with intractable epilepsy(The 41^<th> Congress of the Japan Epilepsy Society)

    Journal of the Japan Epilepsy Society   25 ( 3 )   316 - 316   2007.9

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  • 外転神経麻痺をきたしたHenoch型アレルギー性紫斑病と思われる1例

    藤井達哉, 岩崎稔, 西山佳寿子, 宮嶋智子, 木村暢佑, 三國貴康, 鬼頭敏幸, 楠隆, 伊藤正利

    日本小児科学会雑誌   111 ( 9 )   1213 - 1213   2007.9

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  • 3歳未満の卵白・卵黄特異的IgE陽性例に対する卵製品負荷試験の検討

    楠 隆, 三國 貴康, 木村 暢佑, 宮嶋 智子, 鬼頭 敏幸, 藤井 達哉, 伊藤 正利

    日本小児科学会雑誌   111 ( 8 )   1035 - 1041   2007.8

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    食物アレルギーの1歳以上3歳未満の症例に対し卵製品の摂取が可能か検討した。対象は男子43例、女子16例であった。その結果、1)加熱卵黄、マヨネーズなど卵黄を主体とする食品に関しては、ほとんどの症例で実際には解除可能であることが分かった。2)卵黄特異的IgEは0.35から22.6までの範囲に分布し、この範囲では加熱卵黄37例、マヨネーズ17例中14例で摂取可能であった。3)卵ボーロは9例で軽症であったが症状は出現した。4)加熱卵白の負荷については、卵白特異的IgEがクラス2以下になるまで負荷を見合わせるのが望ましいと考えられた。5)病院での負荷試験で症状が出なくても、自宅での経過を外来で追跡する必要があると思われた。

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  • 3歳未満の卵白・卵黄特異的IgE陽性例に対する卵製品負荷試験の検討

    楠隆, 三國貴康, 木村暢佑, 宮嶋智子, 鬼頭敏幸, 藤井達哉, 伊藤正利

    アレルギーの臨床   27 ( 362 )   659-660 - 660   2007.7

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  • 骨髄非破壊的前処置を用いて骨髄移植を行った慢性肉芽腫症の2例

    三國貴康, 梅田雄嗣, 岩田あや, 粟屋智就, 高原賢守, 濱本奈央, 由井理洋, 丹羽明, 岡藤郁夫, 平松英文, 渡邉健一郎, 足立壮一, 平家俊男, 中畑龍俊, 水上智之, 布井博幸, 足立尚登

    日本小児科学会雑誌   111 ( 6 )   788 - 788   2007.6

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  • 滋賀県における脳性麻痺の発生動向(1977-2000) 出生体重別および在胎週数別検討

    鈴木 順子, 藤井 達哉, 宮嶋 智子, 木村 暢佑, 三國 貴康, 伊藤 正利

    脳と発達   39 ( Suppl. )   S179 - S179   2007.6

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  • バルプロ酸による薬剤性Fanconi症候群の3例

    三國 貴康, 木村 暢佑, 宮嶋 智子, 藤井 達哉, 伊藤 正利

    脳と発達   39 ( Suppl. )   S161 - S161   2007.6

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  • 当院における重度障害児の評価・治療および包括的支援 重症仮死後の脳性麻痺の1例から

    木村 暢佑, 宮嶋 智子, 藤井 達哉, 三国 貴康, 楠 隆, 鬼頭 敏幸, 伊藤 正利, 橋本 和廣

    日本小児科学会雑誌   111 ( 4 )   616 - 616   2007.4

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  • 3歳未満の卵白RAST陽性例に対する早期解除を目指した卵製品負荷試験の検討

    楠隆, 三國貴康, 木村暢佑, 鬼頭敏幸, 宮嶋智子, 藤井達哉, 伊藤正利

    滋賀医学   29   131 - 131   2007.3

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  • 3歳未満の卵白RAST陽性例に対する早期解除を目指した卵製品負荷試験の検討

    楠隆, 三國貴康, 木村暢佑, 宮嶋智子, 鬼頭敏幸, 藤井達哉, 伊藤正利

    日本小児アレルギー学会誌   20 ( 4 )   377   2006.10

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  • 食物アレルギーの寛解 3歳未満の卵白RAST陽性例に対する早期解除を目指した卵製品負荷試験の検討

    楠 隆, 三國 貴康, 木村 暢佑, 宮嶋 智子, 鬼頭 敏幸, 藤井 達哉, 伊藤 正利

    日本小児アレルギー学会誌   20 ( 4 )   377 - 377   2006.10

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  • 進行性家族性肝内胆汁うっ滞症(PFIC)2型の1男児例

    三國貴康, 依藤亨, 中畑龍俊

    日本小児科学会雑誌   110 ( 7 )   973 - 973   2006.7

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  • 治療開始後9年間肝機能が正常化せず脂肪肝炎像を呈するWilson病の17歳肥満男子

    百井 亨, 田中 里江子, 吉田 晃, 奥村 光祥, 濱畑 啓悟, 早川 和代, 三國 貴康, 岩佐 葉子, 渡邊 千尋, 山下 幸孝, 児玉 浩子

    日本小児栄養消化器肝臓学会雑誌   20 ( 1 )   11 - 14   2006.7

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    17歳男.患者は7歳11ヶ月時に扁桃腺摘出の術前検査で肝機能障害が指摘された.肝生検にて大小の脂肪滴からなる脂肪変性を認め,Wilson病と診断された.3年後,2回目の肝生検が実施されたが,門脈域の軽度炎症細胞浸潤と一部線維化が認められ,Nonalcoholic steatohepatitis(NASH)はgrade 2およびstage 2であった.その後,高校1年時に3回目の肝生検を実施したところ,門脈域での中等度の炎症性細胞浸潤,線維性拡大,bridging fibrosis,小葉内でも炎症性細胞浸潤が認められた.NASHはgrade 2ならびにstage 3であった.以後,肥満が進行し,16歳8ヶ月時のBMIは30.9であり,インスリン抵抗性が認められ,HbA1cも5.2〜5.4%とやや高くなっている

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  • 骨髄非破壊的前処置を用いて骨髄移植を行った慢性肉芽腫症の2例

    三國貴康, 梅田雄嗣, 岩田あや, 粟屋智就, 高原賢守, 濱本奈央, 由井理洋, 丹羽明, 岡藤郁夫, 平松英文, 渡邉健一郎, 足立壮一, 平家俊男, 中畑龍俊, 水上智之, 布井博幸, 足立尚登

    日本小児科学会京都地方会会報   37 ( 1 )   12 - 12   2006.5

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  • 骨形成不全症II A型の乳児例

    早川 和代, 藤永 英志, 奥村 光祥, 中西 宏美, 三國 貴康, 横尾 憲孝, 濱畑 啓悟, 吉田 晃, 田中 里江子, 塚原 宏一, 百井 亨

    小児科臨床   59 ( 5 )   995 - 999   2006.5

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    周産期致死型の骨形成不全症II A型の乳児例を経験した.症例は,在胎37週0日,経腟分娩にて1,706gで出生した男児である.在胎22週の胎児超音波検査で四肢短小を指摘されていた.出生時,狭胸郭,鼠径ヘルニアを認め,四肢は短小で彎曲していた.単純X線にて,頭蓋骨の骨化不全,両側上腕骨,大腿骨,脛骨の変形と不整な骨化,捻珠様肋骨,扁平椎を認めた.当科入院中は,肋骨骨折や誤嚥性肺炎により呼吸状態が悪化することが多かった.生後72日に経管栄養,在宅酸素療法を併用して退院となった.骨形成不全症II型は有効な治療法がなく,約80%の症例が生後1ヵ月以内に死亡する予後が不良の先天性疾患である.本症例は,骨折を起こさないよう注意されながら在宅酸素療法を施され,生後7ヵ月まで生存した(著者抄録)

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  • 進行性家族性肝内胆汁うっ滞症(PFIC)2型の一男児例

    三國貴康, 依藤亨, 中畑龍俊

    日本小児科学会京都地方会会報   36 ( 3 )   13 - 13   2005.11

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  • Castleman病の13歳女児例

    三國 貴康, 濱畑 啓悟, 中西 宏美, 横尾 憲孝, 奥村 光祥, 吉田 晃, 田中 里江子, 住友 伸一, 西本 憲弘, 百井 亨

    日本血液学会・日本臨床血液学会総会プログラム・抄録集   67回・47回   985 - 985   2005.9

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  • Dyskeratosis congenitaの6歳男児例

    三國 貴康, 田中 里江子, 中西 宏美, 横尾 憲孝, 早川 和代, 濱畑 啓悟, 奥村 光祥, 吉田 晃, 百井 亨

    日本小児科学会雑誌   109 ( 7 )   895 - 896   2005.7

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  • Glucose Transporter Type I Deficiency Syndromeが疑われる成人例

    田中 里江子, 吉田 晃, 奥村 光祥, 濱畑 啓吾, 早川 和代, 横尾 憲孝, 三國 貴康, 中西 宏美, 百井 亨, 柳原 恵子

    日本小児科学会雑誌   109 ( 7 )   898 - 898   2005.7

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  • Castleman病の13歳女児例

    三國 貴康, 濱畑 啓悟, 中西 宏美, 横尾 憲孝, 早川 和代, 奥村 光祥, 吉田 晃, 田中 里江子, 百井 亨, 中島 成泰, 住友 伸一

    日本小児科学会雑誌   109 ( 7 )   898 - 898   2005.7

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  • 片側性発汗障害を来した縦隔神経芽細胞腫の1例

    横尾 憲孝, 田中 里江子, 濱畑 啓悟, 中西 宏美, 三國 貴康, 早川 和代, 吉田 晃, 奥村 光祥, 百井 亨, 小山 真穂, 澤田 明久, 河 敬世

    日本小児科学会雑誌   109 ( 7 )   898 - 899   2005.7

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  • 反復性小脳失調症の1例

    田中 里江子, 三國 貴康, 吉田 晃, 奥村 光祥, 濱畑 啓悟, 早川 和代, 百井 亨, 高橋 幸利

    日本小児科学会雑誌   109 ( 7 )   891 - 891   2005.7

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  • 骨形成不全症II型の1例

    早川 和代, 奥村 光祥, 三國 貴康, 中西 宏美, 横尾 憲孝, 濱畑 啓悟, 吉田 晃, 田中 里江子, 百井 亨

    日本小児科学会雑誌   109 ( 7 )   893 - 894   2005.7

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  • 乳児症候性Chiari II型奇形に対し早期後頭下減圧術が有効であった一例

    三國 貴康, 奥村 光祥, 中西 宏美, 横尾 憲孝, 早川 和代, 濱畑 啓悟, 吉田 晃, 田中 里江子, 白井 亨, 中 大輔, 亀井 一郎

    和歌山医学   56 ( 2 )   120 - 120   2005.6

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  • 乳児症候性Chiari2型奇形に対し早期後頭下減圧術が有効であった一例

    三國 貴康, 早川 和代, 奥村 光祥, 百井 亨

    日本周産期・新生児医学会雑誌   41 ( 2 )   501 - 501   2005.6

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  • 硬膜表層剥離による後頭下減圧術が有効であった乳児症候性Chiari II型奇形の一例

    中 大輔, 津浦 光晴, 高山 東春, 吉村 良, 南都 昌孝, 奥野 孝, 亀井 一郎, 三國 貴康, 奥村 光祥, 百井 亨

    小児の脳神経   30 ( 2 )   170 - 170   2005.4

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  • 川崎病非典型乳児例に合併した高度僧帽弁閉鎖不全

    福原 仁雄, 豊原 啓子, 田里 寛, 鈴木 嗣敏, 田中 里江子, 吉田 晃, 奥村 光祥, 濱畑 啓悟, 早川 和代, 横尾 憲孝, 三國 貴康, 中西 宏美, 中村 好秀, 百井 亨

    和歌山医学   56 ( 1 )   32 - 32   2005.3

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  • Castleman病の13歳女児例

    三國 貴康, 濱畑 啓悟, 中西 宏美, 横尾 憲孝, 早川 和代, 奥村 光祥, 吉田 晃, 田中 里江子, 百井 亨

    日本小児科学会雑誌   109 ( 2 )   250 - 250   2005.2

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  • 肝被膜下出血の1例

    奥村 光祥, 中西 宏美, 三國 貴康, 横尾 憲孝, 早川 和代, 濱畑 啓悟, 百井 亨

    和歌山医学   55 ( 4 )   252 - 253   2004.12

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  • アデノウイルス3型感染に合併した脳症の一例

    三國 貴康, 濱畑 啓悟, 中西 宏美, 横尾 憲孝, 早川 和代, 鈴木 嗣敏, 田里 寛, 豊原 啓子, 福原 仁雄, 奥村 光祥, 吉田 晃, 田中 里江子, 中村 好秀, 百井 亨

    日本赤十字社和歌山医療センター医学雑誌   22   67 - 73   2004.12

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    10歳男児.5日間の発熱の後,解熱してから意識障害,低体温を生じて急性脳炎が疑われた.汎血球減少,低カリウム血症を認め,髄液検査は正常で頭部CT,MRIに異常はなかった.しかし,脳波では高振幅徐波を認めた.咽頭ぬぐい液からアデノウイルス3型が分離され,ペア血清で同ウイルスの中和抗体価が16倍以上の上昇を示した.心電図ではWenckebach型II度房室ブロックを認めた.意識障害と低体温は保存的治療のみで改善傾向を示し,脳波所見も症状とともに改善した.血清カリウムは通常の維持輸液にて改善し,汎血球減少も経過とともに改善した.房室ブロックは消失し,退院1週間後の24時間ホルター心電図でもブロックは認められなかった

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  • MTX大量療法後一過性に対麻痺を認めたT-Lymphoblastic lymphomaの1例

    濱畑 啓悟, 三國 貴康, 百井 亨

    小児がん   41 ( 3 )   729 - 729   2004.11

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  • 鞍上部germinoma治療中に高度の低Na血症を呈し,中枢性塩喪失症候群と考えられた一例

    三國 貴康, 濱畑 啓悟

    小児がん   41 ( 3 )   640 - 640   2004.11

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  • 視野狭窄の精査の結果鞍上部teratoma+germinomaと診断された,思春期早発症を呈していた10歳男児例

    三國 貴康, 濱畑 啓悟, 早川 和代, 奥村 光祥, 吉田 晃, 田中 里江子, 百井 亨, 吉村 良, 亀井 一郎

    Pharma Medica   22 ( 9 )   120 - 120   2004.9

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  • 鞍上部germinoma治療中に高度の低Na血症を呈し,中枢性塩喪失症候群と考えられた一例

    三國 貴康, 濱畑 啓悟

    日本小児血液学会雑誌   18 ( 4 )   379 - 379   2004.8

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  • 治療開始後8年間肝機能が正常化しないウイルソン病の男子

    百井 亨, 田中 里江子, 吉田 晃, 奥村 光祥, 濱畑 啓悟, 早川 和代, 三國 貴康, 渡邊 千尋, 山下 幸孝, 児玉 浩子, 羽賀 博典

    日本小児栄養消化器肝臓学会雑誌   18 ( Suppl. )   58 - 58   2004.8

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  • MTX大量療法後一過性に対麻痺を認めたT-Lymphoblastic lymphomaの1例

    濱畑 啓悟, 三國 貴康, 百井 亨

    日本小児血液学会雑誌   18 ( 4 )   468 - 468   2004.8

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  • 帽状腱膜下血腫で発症した血友病Aの一例

    三國 貴康, 藤永 英志, 奥村 光祥, 早川 和代, 石原 温子, 濱畑 啓悟, 吉田 晃, 田中 里江子, 百井 亨

    和歌山医学   55 ( 2 )   127 - 127   2004.6

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  • Campylobacter fetusによる髄膜炎をきたした新生児例

    早川 和代, 奥村 光洋, 藤永 英志, 三國 貴康, 石原 温子, 濱畑 啓悟, 吉田 晃, 田中 里江子, 百井 亨

    日本小児科学会雑誌   108 ( 5 )   802 - 802   2004.5

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  • 急性巣状細菌性腎炎の5歳男児例

    三國 貴康, 濱畑 啓悟, 日裏 勝, 早川 和代, 石原 温子, 藤永 英志, 奥村 光祥, 吉田 晃, 田中 里江子, 百井 亨

    日本赤十字社和歌山医療センター医学雑誌   21   45 - 50   2004.3

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    5歳男児.患者は発熱・嘔吐を主訴に入院となった.入院時,血液検査では白血球数,CRPの上昇を認め,尿検査では潜血,蛋白を認めたが白血球は認めず,尿培養・血液培養は陰性であった.腹部超音波検査では左腎盂と尿管の拡張を認め,造影CT所見にて左腎実質内に多発性の楔状低吸収域を認めた.以上より,急性巣状細菌性腎炎(AFBN)と診断し,抗生剤(FMOX)の静脈注を開始したところ,解熱,白血球数・CRPの正常化がみられ,入院11日目に退院となった.経過中,99mTc-DMSAシンチグラフィで左腎に集積欠損像を,排尿時膀胱尿道造影で両側の膀胱尿管逆流現象を認めたことから,本症例は逆行性経尿道感染による急性腎盂腎炎からAFBNに進展したと考えられた

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  • 最近10年間に当科NICUで経験した新生児遷延性肺高血圧症早産児例の検討

    藤永 英志, 三國 貴康, 早川 和代, 石原 温子, 濱畑 啓悟, 奥村 光祥, 吉田 晃, 田中 里江子, 百井 亨

    和歌山医学   54 ( 4 )   267 - 267   2003.12

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  • 神経幹細胞より単離された分泌タンパク質SDNSFの神経系前駆細胞生存支持活性の解析

    辻 正幸, 戸田 弘紀, 三國 貴康, 高橋 淳, 田代 啓, 本庶 佑

    生化学   73 ( 8 )   1062 - 1062   2001.8

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  • SDF-1発現組換えアデノウイルス投与マウスを用いたin vivo SDF-1遊走活性の定量的考察

    池川 雅哉, 田代 啓, 三國 貴康, 本庶 佑

    日本免疫学会総会・学術集会記録   30   190 - 190   2000.11

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  • SDF-1発現組換えアデノウイルス投与によるCXCR4 down modulation

    池川 雅哉, 田代 啓, 三國 貴康, 斉藤 泉, 鐘ヶ江 裕美, 本庶 佑

    日本免疫学会総会・学術集会記録   29   285 - 285   1999.10

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Presentations

  • NIPS L&M Meeting

    2020.9 

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  • Japanese Society of Child Neurology Lecture

    2020.8 

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  • Japan Neuroscience Society Meeting Symposium

    Takayasu Mikuni

    2020.7 

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  • OIST-JST Workshop

    Takayasu Mikuni

    2020.1 

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  • The Molecular Biology Society of Japan, satellite symposium

    2019.12 

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  • Next generation brain symposium Invited

    Takayasu Mikuni

    2019.12 

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  • DANDRITE, Aarhus University Invited

    Takayasu Mikuni

    2019.11 

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    Presentation type:Symposium, workshop panel (nominated)  

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  • The 92nd Annual Meeting of the Japanese Biochemical Society Invited

    Takayasu Mikuni

    2019.9 

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  • Graduate School of Medicine, Kyoto University Invited

    Takayasu Mikuni

    2019.7 

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  • RIKEN Center for Brain Science, Symposium Invited

    Takayasu Mikuni

    2019.7 

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    Presentation type:Symposium, workshop panel (nominated)  

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  • The 42nd Annual Meeting of the Japan Neuroscience Society Invited

    Takayasu Mikuni

    2019.7 

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    Presentation type:Symposium, workshop panel (public)  

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  • Graduate School of Medicine, University of Tokyo Invited

    Takayasu Mikuni

    2019.5 

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  • Public lecture Invited

    Takayasu Mikuni

    2019.5 

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  • WPI-IIIS, University of Tsukuba Invited

    Takayasu Mikuni

    2019.4 

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  • The 9th BRI International Symposium Invited

    Takayasu Mikuni

    2019.3 

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    Presentation type:Symposium, workshop panel (nominated)  

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  • Sanyu-kai Takeda Neuroscience Symposium Invited

    Takayasu Mikuni

    2019.2 

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  • Graduate School of Engineering, Kyoto University Invited

    Takayasu Mikuni

    2018.12 

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  • Kansai Medical University Invited

    Takayasu Mikuni

    2018.11 

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  • JST-MPFI Workshop Invited

    Takayasu Mikuni

    2018.10 

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    Presentation type:Symposium, workshop panel (nominated)  

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  • Baylor College of Medicine

    Takayasu Mikuni

    2018.5 

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  • University of California, San Diego Invited

    Takayasu Mikuni

    2018.3 

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  • Boston University Invited

    Takayasu Mikuni

    2018.2 

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    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

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  • Icahn School of Medicine at Mount Sinai Invited

    Takayasu Mikuni

    2017.5 

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  • The 94th Annual Meeting of the Physiological Society of Japan Invited

    Takayasu Mikuni

    2017.3 

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    Presentation type:Symposium, workshop panel (nominated)  

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  • Graduate School of Medicine, Yamanashi University Invited

    Takayasu Mikuni

    2017.3 

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  • Graduate School of Medicine, University of Tokyo Invited

    Takayasu Mikuni

    2016.7 

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    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

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  • Doshisha University Invited

    Takayasu Mikuni

    2016.7 

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  • Center for iPS Cell Research and Application, Kyoto University Invited

    Takayasu Mikuni

    2016.7 

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  • Max Planck Florida Institute for Neuroscience Invited

    Takayasu Mikuni

    2012.10 

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    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

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  • Possible involvement of the Ca2+-dependent gene Arc in activity-dependent synapse elimination in the cerebellum International conference

    Takayasu Mikuni, Naofumi Uesaka, Hiroyuki Okuno, Hirokazu Hirai, Haruhiko Bito, Masanobu Kano

    Neuroscience 2012, Society for Neuroscience  2012 

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  • Roles of Purkinje cell activity in climbing fiber synapse elimination in an organotypic coculture preparation of the cerebellum and medulla oblongata

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    The 34th Annual Meeting of the Japan Neuroscience Society  2011 

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    Venue:Yokohama, Japan  

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  • Activity-dependent synapse elimination in an organotypic coculture preparation of the cerebellum and medulla oblongata

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    Gordon Research Conference  2011 

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    Venue:New London, USA  

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  • Postsynaptic Purkinje cell activity accelerates climbing fiber synapse elimination in an organotypic coculture preparation of the cerebellum and medulla oblongata

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    Neuroscience 2011, Society for Neuroscience  2011 

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    Venue:Washington DC  

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  • Activity-dependent synapse elimination of climbing fiber to Purkinje cell projections in vitro

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    4th International Symposium of the Society for Research on the Cerebellum  2011 

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    Venue:Tokyo  

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  • Synapse non-specific degradation of the endocannabinoid 2-arachidonoylglycerol mediating depolarization-induced retrograde synaptic suppression in cerebellar Purkinje cells

    Asami Tanimura, Maya Yamazaki, Motokazu Uchigashima, Naofumi Uesaka, Takayasu Mikuni, Kouichi Hashimoto, Masahiko Watanabe, Kenji Sakimura, Masanobu Kano

    The 34th Annual Meeting of the Japan Neuroscience Society  2011 

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    Venue:Yokohama, Japan  

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  • An in vitro coculture preparation suitable for investigating the mechanisms of synapse development in rodent cerebellum

    Naofumi Uesaka, Takayasu Mikuni, Masanobu Kano

    The 33rd Annual Meeting of the Japan Neuroscience Society  2010 

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    Venue:Kobe, Japan  

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  • Applications of gene transfer techniques to CNS organotypic cultures

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    The 87th Annual Meeting of the Physiological Society of Japan  2010 

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    Venue:Morioka, Japan  

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  • Effective modifications of neural activity in CNS organotypic cultures

    Takayasu Mikuni, Naofumi Uesaka, Masanobu Kano

    The 33rd Annual Meeting of the Japan Neuroscience Society  2010 

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    Venue:Kobe, Japan  

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  • Gene transfer techniques for CNS organotypic cultures

    Naofumi Uesaka, Takayasu Mikuni, Masanobu Kano

    The 32nd Annual Meeting of the Japan Neuroscience Society  2009 

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    Venue:Nagoya, Japan  

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Awards

  • Young Investigator Award

    2019.7   Japan Neuroscience Society  

    Takayasu Mikuni

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  • Career Development Award

    2019.3   Human Frontier Science Program  

    Takayasu Mikuni

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  • Promotion Award of the Physiological Society of Japan for Young Scientists

    2017.3   Physiological Society of Japan  

    Takayasu Mikuni

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  • Inoue Research Award for Young Scientists

    2014.2   Inoue Foundation for Science  

    Takayasu Mikuni

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  • Masao Ito Prize

    2011.9   Society for Reseach on the Cerebellum  

    Takayasu Mikuni

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Research Projects

  • 記憶メカニズムの多次元解析 - nmからメゾスケール/ミリ秒から日スケールまで

    Grant number:22K21353

    2022.12 - 2029.3

    System name:科学研究費助成事業

    Research category:国際共同研究加速基金(国際先導研究)

    Awarding organization:日本学術振興会

    林 康紀, 池谷 裕二, 柚崎 通介, 久保 郁, 根本 知己, 米原 圭祐, 三國 貴康

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    Grant amount:\689000000 ( Direct Cost: \530000000 、 Indirect Cost:\159000000 )

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  • Imaging functional synaptic plasticity during motor learning

    Grant number:21F21113

    2021.4 - 2023.3

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for JSPS Fellows

    Awarding organization:Japan Society for the Promotion of Science

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    Grant amount:\2300000 ( Direct Cost: \2300000 )

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  • 発達障害の病態生理の分子-シナプス-細胞レベルのマルチスケール構成的理解

    Grant number:21H00188

    2021.4 - 2023.3

    System name:科学研究費助成事業

    Research category:新学術領域研究(研究領域提案型)

    Awarding organization:日本学術振興会

    三國 貴康

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    Grant amount:\7800000 ( Direct Cost: \6000000 、 Indirect Cost:\1800000 )

    発達障害の病態を理解し、その治療法を開発することは、神経科学研究の大きな課題の一つである。発達障害の病態として、発達期のシナプスの成熟異常が考えられている。しかし従来の研究は、「細胞のごく一部のシナプスを対象とする研究」か「細胞全体の入出力の総和を解析する研究」である。ゆえに、シナプスレベルの理解と細胞レベルでの理解には、依然として階層(スケール)のギャップが存在している。そこで本研究では、この階層のギャップを埋める新たなアプローチを創出し、個体の脳内の1神経細胞で数千個のシナプスの成熟度を網羅的に理解できるようにする。そのうえで、申請者がこれまでに開発した生体脳内ゲノム編集・分子イメージング技術SLENDR/vSLENDR、生体脳でのモザイク病態細胞モデリング技術、およびSLENDR/vSLENDR用の豊富なゲノム編集ライブラリーを有効に組み合わせることで、発達障害の病態メカニズムを分子-シナプス-細胞のマルチスケールで一気通貫に理解することを目指している。2021年度はまず、脳内シナプスの発達をホールセルで網羅的にイメージングする方法の開発を目指した。個体の脳内で細胞まるごとを高速イメージングするために、レゾナントスキャナによる2光子顕微鏡に、ベッセルビームを用いた2光子ボリュームイメージング法を組み合わせた(Lu et al., Nat Methods 2020)。これにより、個体の脳内の神経細胞で個々のシナプスの発達を分子レベルかつホールセルで網羅的にイメージングする準備が整った。

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  • 長期記憶における新規合成タンパク質の動態と役割

    Grant number:20H03337

    2020.4 - 2023.3

    System name:科学研究費助成事業 基盤研究(B)

    Research category:基盤研究(B)

    Awarding organization:日本学術振興会

    三國 貴康

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    Grant amount:\17810000 ( Direct Cost: \13700000 、 Indirect Cost:\4110000 )

    記憶は、秒から分単位の経過とともに忘れる「短期記憶」と、何時間、何日、あるいは一生続くような「長期記憶」に大別される。短期記憶では、細胞内で既に発現しているタンパク質の移動や修飾が重要な役割を果たし、タンパク質の新規合成は不要であることがこれまでの研究からわかっている。一方、タンパク質の合成を阻害する薬理実験から、長期記憶ではタンパク質の新規合成が必須であることが古くから知られている。しかしながら、脳内で新規に合成されたタンパク質がいつ、どこで、どのように働いて長期記憶を実現しているのかはほとんどわかっていない。本研究では、脳で新規に合成されたタンパク質がいつ、どこで、どのように働いて長期記憶を実現しているのかを明らかにし、長期記憶の分子メカニズムを解明することを目指している。2021年度は、前年度に引き続き、様々な新規合成タンパク質を観察し、操作するためのプラットフォームの構築を行った。申請者が開発した生体脳内ゲノム編集技術と内在性タンパク質のハイスループットな標識・イメージング技術SLENDRおよびvSLENDR (Mikuni et al., Cell 2016; Nishiyama*, Mikuni* et al., Neuron 2017) と化学的標識技術を組み合わせることで、特定の時間枠に新規に生合成された内在性タンパク質を可視化することに成功した。さらに、記憶に重要とされるシナプス伝達や細胞内シグナル伝達に関わる10種類程度のタンパク質について、SLENDR/vSLENDRによる分子イメージングに成功した。

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  • 生体脳内ゲノム編集によるハイスループットな細胞種識別技術の開発と応用

    Grant number:20H05055

    2020.4 - 2022.3

    System name:科学研究費助成事業 新学術領域研究(研究領域提案型)

    Research category:新学術領域研究(研究領域提案型)

    Awarding organization:日本学術振興会

    三國 貴康

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    Grant amount:\5720000 ( Direct Cost: \4400000 、 Indirect Cost:\1320000 )

    哺乳類の脳は、様々な細胞種同士が互いに複雑なネットワークを形成している、極めてヘテロで難解なシステムである。従って、脳の動作原理を抽出するためには、脳の中の特定の細胞種を識別し、細胞種選択的に神経活動をモニターする必要がある。細胞種を識別するための遺伝子組換えマウスの系統の作製には、時間とコストがかかる。また、複数の細胞種を識別するには異なる系統のマウスの交配が必要であり、さらに、病態モデルマウスに適用するにはより多くの交配が必要になるので、現実的には簡単ではない。そこで本研究では、申請者が開発した生体脳内ゲノム編集技術SLENDR/vSLENDR法(Mikuni et al., Cell 2016; Nishiyama*, Mikuni* et al., Neuron 2017)を駆使して、動物個体の脳でハイスループットに様々な複数の細胞種を識別し、識別した細胞種の神経活動を同時にイメージングするための技術基盤を開発することを目的としている。2021年度は、前年度に引き続き、マウスを用いて、ゲノム編集による迅速な分子発現レポーターシステムの構築を目指した。CaMKIIα(興奮性神経細胞)などの分子マーカーの遺伝子座にリコンビナーゼ配列を挿入するようなゲノム編集を行うためのアデノ随伴ウイルスベクターを作製した。そのうえで、リコンビナーゼ依存的に蛍光タンパク質やカルシウムインジケータを発現するアデノ随伴ウイルスベクターを作製し、ゲノム編集ベクターと共にマウスに投与した。ウイルスベクターからのリーク発現を抑える仕掛けを加えたところ、効率良く、ある程度特異的に分子マーカー陽性細胞に目的遺伝子を発現させることに成功した。

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  • A new method to trace intracellular molecular dynamics in tissue

    Grant number:19K22467

    2019.6 - 2021.3

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Challenging Research (Exploratory)

    Awarding organization:Japan Society for the Promotion of Science

    Mikuni Takayasu

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    Grant amount:\6500000 ( Direct Cost: \5000000 、 Indirect Cost:\1500000 )

    This project aimed to develop a high-throughput method to image specific newly synthesized proteins in brain tissue. Toward this aim, I used an in vivo genome editing and molecular imaging technique, termed SLENDR and vSLENDR, and chemical labeling techniques to establish a method to image a specific protein that is synthesized in a distinct time window in brain tissue. Using this method, I succeeded in imaging a specific endogenous protein that is synthesized in only 2 hours in mouse brain tissue. I then tried to apply this method to more than 10 different proteins by making constructs for SLENDR and vSLENDR techniques.

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  • ゲノム編集による生体脳内での発達障害モデリングとタンパク質の網羅的イメージング

    Grant number:19H05206

    2019.4 - 2021.3

    System name:科学研究費助成事業 新学術領域研究(研究領域提案型)

    Research category:新学術領域研究(研究領域提案型)

    Awarding organization:日本学術振興会

    三國 貴康

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    Grant amount:\5850000 ( Direct Cost: \4500000 、 Indirect Cost:\1350000 )

    本研究は、単一遺伝子異常で発達障害の症状をきたす症候群を対象に、マウスを動物モデルに使って、タンパク質の量的制御、細胞内局在・動態の情報を網羅的に収集することを目的とした。そのために、SLENDR法およびvSLENDR法 (Mikuni et al., Cell 2016; Nishiyama*, Mikuni* et al., Neuron 2017) を駆使して、マウスの生体脳内で疾患細胞モデルをモザイク状に作り出し、その細胞モザイク下で内在性タンパク質の細胞内局在や動態のイメージングをハイスループットに行う方法を確立した。さらに、様々な対象タンパク質の発現量や細胞内局在をイメージング解析できるようにした。具体的には、子宮内電気穿孔法を使うSLENDR法、またはアデノ随伴ウイルスベクターを使うvSLENDR法を用いて、マウス大脳皮質の2/3層の錐体細胞で疾患遺伝子モデリングと標的タンパク質の可視化を行った。対象タンパク質は、シナプス機能や細胞内シグナル伝達に関わる様々なタンパク質で、本研究期間に数十種類のタンパク質を可視化できるようにした。共焦点顕微鏡や二光子顕微鏡を用いて、固定脳スライスおよび培養スライスでのイメージング、個体でのin vivoイメージングを行い、標的タンパク質の定量的イメージング解析を行った。これらの研究により、生体脳内での発達障害細胞モデリングとハイスループットな分子イメージング解析が可能となり、発達障害の病態解明のための新たなアプローチが確立され、このアプローチを使って様々な分子の細胞内局在・動態の情報を収集した。

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  • Comprehensive, single-cell analysis of the localization and dynamics of endogenous proteins in brain tissue

    2016.10 - 2020.3

    System name:PRESTO

    Awarding organization:Japan Science and Technology Agency

    Takayasu Mikuni

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    Authorship:Principal investigator  Grant type:Competitive

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