Functional analysis of MDGA family proteins on regulation of synapse formation and social behavior.
Project/Area Number |
16K08237
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Biological pharmacy
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Research Institution | Kagawa University |
Principal Investigator |
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Project Period (FY) |
2016-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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Keywords | 自閉スペクトラム症 / 統合失調症 / MDGA1 / MDGA2 / Neuroligin / E/Iバランス / シナプス形成 / E/Iバランス / ニューロリギン / ニューレキシン / 記憶 / 社会性行動 / 自閉症スペクトラム障害 / MDGA |
Outline of Final Research Achievements |
MDGAs are GPI-anchored IgSF molecules that consist of two closely related family members: MDGA1 and MDGA2. MDGA1/2 directly associates with Neuroligins to interfere its binding to Neurexin for preventing inappropriately excess synapse formation. We found that loss of MDGA1 induces excess inhibitory synapse formation to cause sensorimotor-gating abnormalities that are early clinical symptom of schizophrenia, and loss of MDGA2 induces excess excitatory synapse formation to cause social behavioral abnormalities related to ASD. We also found that MDGA1- and MDGA2-deficient mice exhibit contrasting social behavioral abnormalities .
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Academic Significance and Societal Importance of the Research Achievements |
本研究により、シナプスの「でき過ぎ」を防いでいるシステムの存在とその分子的実態が明らかになるとともに、その機能に干渉することにより、種々の精神神経疾患における分子病態の背景にあると考えられているE/Iバランスを人為的に制御し得ることが示唆された。また、MDGA1・MDGA2両欠失マウスは、E/Iバランスをそれぞれ興奮側・抑制側に偏移させた疾患モデルとしても有用であることが示された。本解析により、高次脳機能統御におけるE/Iバランスの意義があらためて明らかになるとともに、精神神経疾患創薬シーズの獲得に向けた新たな探索プラットフォームを提示できたと考えている。
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Report
(5 results)
Research Products
(36 results)
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[Journal Article] MDGA1-deficiency attenuates prepulse inhibition with alterations of dopamine and serotonin metabolism: An ex vivo HPLC-ECD analysis.2020
Author(s)
Hossain MR, Jamal M, Tanoue Y, Ojima D, Takahashi H, Kubota T, Ansary TM, Ito A, Tanaka N, Kinoshita H, Kishimoto Y, Yamamoto T.
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Journal Title
Neurosci. Lett.
Volume: 716
Pages: 134677-134677
DOI
Related Report
Peer Reviewed
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[Journal Article] Loss of synapse repressor MDGA1 enhances perisomatic inhibition, confers resistance to network excitation, and impairs cognitive function2017
Author(s)
Steven A. Connor, Ina Ammendrup-Johnsen, Yasushi Kishimoto, Parisa Karimi Tari, Vedrana Cvetkovska, Takashi Harada, Daiki Ojima, Tohru Yamamoto, Yu Tian Wang, Ann Marie Craig
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Journal Title
Cell Rep.
Volume: 26
Issue: 13
Pages: 3637-3645
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Altered cortical dynamics and cognitive function upon haploinsufficiency of the autism-linked excitatory synaptic suppressor MDGA22016
Author(s)
S. A. Connor, I. Ammendrup-Johnsen, A. W. Chan, Y. Kishimoto, C. Murayama, N. Kurihara, A. Tada, Y. Ge, H. Lu, R. Yan, J. M. LeDue, H. Matsumoto, H. Kiyonari, Y. Kirino, F. Matsuzaki, T. Suzuki, T. H. Murphy, Y. T. Wang, T. Yamamoto, A. M. Craig
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Journal Title
Neuron
Volume: 91
Issue: 5
Pages: 1052-1068
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] d-Allose Attenuates Overexpression of Inflammatory Cytokines after Cerebral Ischemia/Reperfusion Injury in Gerbil.2016
Author(s)
Shinohara N, Nakamura T, Abe Y, Hifumi T, Kawakita K, Shinomiya A, Tamiya T, Tokuda M, Keep RF, Yamamoto T, Kuroda Y.
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Journal Title
J Stroke Cerebrovasc Dis.
Volume: 25
Issue: 9
Pages: 2184-2188
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Synaptopathies associated with loss of MDGAs.2018
Author(s)
Steven Connor, Ina Ammendrup-Johnsen, Yasushi Kishimoto, Parisa Karimi Tari, Vedrana Cvetkovska, Takashi Harada, Daiki Ojima, Tohru Yamamoto, Yu Tian Wang, Ann Marie Craig
Organizer
17th Annual Molecular and Cellular Cognition Society Meeting.
Related Report
Int'l Joint Research
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[Presentation] Haploinsufficiency of the neuronal surface protein MDGA2 enhances excitatory synapse development, alters cortical circuit dynamics and yields behavioral phenotypes consistent with autism in mice.2016
Author(s)
Connor SA, Ammendrup-Johnsen I, Chan AW, Kishimoto Y, Murayama C, Ojima D, Kurihara N, Tada A, Ge Y, Lu H, Yan R, LeDue JM, Matsumoto H, Kiyonari H, Kirino Y, Matsuzaki F, Suzuki T, Murphy TH, Wang YT, Yamamoto T, Craig AM.
Organizer
Society for Neuroscience annual meeting
Place of Presentation
San Diego, USA
Year and Date
2016-11-12
Related Report
Int'l Joint Research
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