Elucidation of molecular mechanisms of acquisition of individuality and differentiation of various types of neurons in the cerebellum
Project/Area Number |
18H02538
|
Research Category |
Grant-in-Aid for Scientific Research (B)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 46020:Anatomy and histopathology of nervous system-related
|
Research Institution | National Center of Neurology and Psychiatry |
Principal Investigator |
Hoshino Mikio 国立研究開発法人国立精神・神経医療研究センター, 神経研究所 病態生化学研究部, 部長 (70301273)
|
Project Period (FY) |
2018-04-01 – 2022-03-31
|
Project Status |
Completed (Fiscal Year 2022)
|
Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
|
Keywords | 神経発生 / 小脳 / 転写因子 / 細胞分化 / サイクリンD1 / PROX1 / ATOH1 / MEIS1 / 発生 / 神経系 / 神経細胞 / 顆粒細胞 / 神経前駆細胞 / 小脳発生 / 神経回路 / 脳神経 / CCND1 / 神経科学 / 発生・分化 / 解剖学 / 脳・神経 / 神経 |
Outline of Final Research Achievements |
It was found that granule cell progenitors (GCPs) in the cerebellum progressively lose their "undifferentiated" and "proliferative" nature and eventually differentiate into granule cells. Furthermore, in this stepwise transition, cyclin D1, which was known to activate cell proliferation, was found to stabilize the ATOH1 protein via phosphorylation, thereby maintaining the undifferentiated nature of GCPs. It was also revealed that the WNT protein, which increases with brain development, and the PROX1 molecule whose expression is induced by the WNT protein, gradually decrease the amount of cyclin D1, thereby accelerating GC development.
|
Academic Significance and Societal Importance of the Research Achievements |
本研究では、顆粒細胞(GCs)という神経細胞の新しい発生メカニズムとその分子基盤に関して新しい知見を多く見出すことができた。これらの成果は、顆粒細胞の発生機構だけではなく、進化的な小脳皮質の拡大機構や顆粒細胞のガン化のメカニズムに関しても多くの示唆に富んでいる。また、今回注目している分子や発生メカニズムは小脳にとどまらない。大脳皮質をはじめとする各脳領域で、これらの分子や発生メカニズムは共通しているため、小脳の研究が、脳全体の共通原理の創出につながっていくことが、今後大いに期待される。
|
Report
(5 results)
Research Products
(32 results)
-
-
-
-
-
[Journal Article] Down syndrome cell adhesion molecule like-1 (DSCAML1) links the GABA system and seizure susceptibility.2020
Author(s)
Hayase Y, Amano S, Hashizume K, Tominaga T, Miyamoto H, Kanno Y, Ueno-Inoue Y, Inoue T, Yamada M, Ogata S, Balan S, Hayashi K, Miura Y, Tokudome K, Ohno Y, Nishijo T, Momiyama T, Yanagawa Y, Takizawa A, Mashimo T, Serikawa T, Sekine A, Nakagawa E, Takeshita E, Yoshikawa T, Waga C, Inoue K, Goto YI, Nabeshima Y, et al.
-
Journal Title
Acta Neuropathol Commun.
Volume: 8
Issue: 1
Pages: 206-206
DOI
Related Report
Peer Reviewed / Open Access
-
[Journal Article] DSCAM regulates delamination of neurons in the developing midbrain2020
Author(s)
Arimura Nariko、Okada Mako、Taya Shinichiro、Dewa Ken-ichi、Tsuzuki Akiko、Uetake Hirotomo、Miyashita Satoshi、Hashizume Koichi、Shimaoka Kazumi、Egusa Saki、Nishioka Tomoki、Yanagawa Yuchio、Yamakawa Kazuhiro、Inoue Yukiko U.、Inoue Takayoshi、Kaibuchi Kozo、Hoshino Mikio
-
Journal Title
Science Advances
Volume: 6
Issue: 36
Pages: 1693-1693
DOI
Related Report
Peer Reviewed / Open Access
-
-
-
-
-
[Journal Article] Forebrain Ptf1a Is Required for Sexual Differentiation of the Brain2018
Author(s)
Fujiyama Tomoyuki、Miyashita Satoshi、Tsuneoka Yousuke、Kanemaru Kazumasa、Kakizaki Miyo、Kanno Satomi、Ishikawa Yukiko、Yamashita Mariko、Owa Tomoo、Nagaoka Mai、Kawaguchi Yoshiya、Yanagawa Yuchio、Magnuson Mark A.、Muratani Masafumi、Shibuya Akira、Nabeshima Yo-ichi、Yanagisawa Masashi、Funato Hiromasa、Hoshino Mikio
-
Journal Title
Cell Reports
Volume: 24
Issue: 1
Pages: 79-94
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
[Journal Article] Deficiency of AMPAR?Palmitoylation Aggravates Seizure Susceptibility2018
Author(s)
Itoh Masayuki、Yamashita Mariko、Kaneko Masaki、Okuno Hiroyuki、Abe Manabu、Yamazaki Maya、Natsume Rie、Yamada Daisuke、Kaizuka Toshie、Suwa Reiko、Sakimura Kenji、Sekiguchi Masayuki、Wada Keiji、Hoshino Mikio、Mishina Masayoshi、Hayashi Takashi
-
Journal Title
The Journal of Neuroscience
Volume: 38
Issue: 47
Pages: 10220-10235
DOI
Related Report
Peer Reviewed / Open Access
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Loss of Auts2 induces the defects of synaptic function and cognitive brain functions2018
Author(s)
Hori K, Nagai T, Shan W, Yamad M, Shiraishi R, Sakamoto A, Kanno K, Abe M, Yamada K, Sakimura K, Hoshino M
Organizer
新学術領域個性創発脳第1回国際シンポジウム
Related Report
Int'l Joint Research / Invited
-
-
-
-
-