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Laboratory for Behavioral and Developmental Disorders
Jun ARUGA
Laboratory Head
Jun ARUGA
(M.D., Ph.D.)
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Research Areas

Vertebrates have a highly organized and centralized nervous system, while the nervous system of invertebrate animals is various, ranging from the diffused nervous system in jellyfish to a moderately centralized nervous system in insects. The diversity of the nervous system is based on the genetic information that has been accumulated and sophisticated in the course of evolution. We perform comparative analysis on the structure, function and expression of genes critically involved in the neurogenesis, such as Zic, Slitrk and Lrfn, as well as other uncharacterized genes expressed in neural tissue. These analyses aim at a comprehensive understanding of the role of the genes and cis-regulatory elements in the appearance of complicated nervous system in animals. As a benefit of the comparative genomic analysis, we are developing and analyzing several model animals for neurodevelopmental disorders.

Research Subject

  1. Studies on the pathogenesis of neurodevelopmental disorders using model animals
  2. Studies on the regulatory mechanism underlying proliferation and differentiation of neuronal progenitors
  3. Phylogenic comparative analysis of genes mediating neurogenesis

Related links

  1. RIKEN Brain Science Institute Website_Laboratories PageNew Window
  2. Individual Website Laboratory PageNew Window

Press release

November 11, 2009
Identification of SLITRK6, a membrane protein that plays key roles in the formation of neuronal circuits of the inner ear

RIKEN RESEARCH

October 29, 2010
Joining the searching for genes that control mind and behavior New Window
January 22, 2010
Derailing inner ear development
A molecule that regulates expression of two growth factors is critical for inner ear developmentNew Window

List of Selected Publications

  1. Takahashi, H., Katayama, K-i., Sohya, K., Miyamoto, H., Prasad, T., Matsumoto, Y., Ota, M., Yasuda, H., Tsumoto, T., Aruga, J., Craig, A.M.:
    " Selective control of inhibitory synapse development by Slitrk3-PTPdelta trans-synaptic interaction."
    Nat. Neurosi. DOI: 10.1038/nn.3040 (2012)
  2. Hatayama, M., Ishiguro, A., Iwayama, Y., Takashima, N., Sakoori, K., Toyota, T., Nozaki, Y., Odaka, Y.S., Yamada, K., Yoshikawa, T., Aruga, J.:
    " Zic2 hypomorphic mutant mice as a schizophrenia model and ZIC2 mutations identified in schizophrenia patients."
    Scientific Reports 1:16. (2011)
  3. Takashima, N., Odaka, Y.S., Sakoori, K., Akagi, T., Hashikawa, T., Morimura, N., Yamada, K., Aruga, J.:
    " Impaired cognitive function and altered hippocampal synapse morphology in mice lacking Lrrtm1, a gene associated with schizophrenia. "
    Plos One 6: e22716. (2011).
  4. Matsumoto, Y., Katayama, K., Okamoto, T., Yamada, K., Takashima, N., Nagao, S., Aruga, J.:
    " Impaired Auditory-Vestibular Functions and Behavioral Abnormalities of Slitrk6-Deficient Mice"
    PLoS One 6: e16497. (2011)
  5. Hatayama, M., Aruga, J.:
    " Characterization of the tandem CWCH2 sequence motif: a hallmark of inter-zinc finger interactions."
    BMC Evol. Biol. 10 e53 (2010)
  6. Katayama, K-i., Zine, A., Ota, M., Matsumoto, Y., Inoue, T., Fritzsch, B., Aruga, J.
    " Disorganized innervation and neuronal loss in the inner ear of Slitrk6-deficient mice"
    PLoS One 4: e7786. (2009)
  7. Katayama, K-i, Yamada, K., Ornthanalai, V. G.., Inoue, T., Ota, M., Murphy, N.P., Aruga, J.:
    " Slitrk1-deficient mice display elevated anxiety-like behavior and noradrenergic abnormalities."
    Mol. Psychiatry 15, 177-184. (2010) (published online, 2008)
  8. Hatayama, M., Tomizawa, T., Bouvagnet, P., Kose, S., Imamoto, N., Yokoyama, S., Mikoshiba, K., Kigawa, T., Aruga, J.:
    " Functional and structural basis of the nuclear localization signalin the ZIC3 zinc finger domain, a role of conserved tryptophan residue in the zinc finger domain."
    Hum. Mol. Genet. 17, 3459-3473. (2008)
  9. Inoue, T., Ogawa, M., Mikoshiba, K., Aruga, J.:
    " Zic deficiency in the cortical marginal zone and meninges results in cortical lamination defects resembling those in type II lissencephaly."
    J. Neurosci. 28, 4712-4725. (2008)
  10. Takahashi, H., Kamiya, A., Ishiguro, A., Suzuki, A.C., Saitou, N., Toyoda, A., Aruga, J.:
    " Conservation and diversification of Msx protein in metazoan evolution."
    Mol. Biol. Evol. 25, 69-82. (2008)

Members

Principal Investigator

Jun ARUGA
Laboratory Head

Members

Miyuki KABAYAMA
 
Kazuto SAKOORI
 
Naoko MORIMURA
 
Naoko TOMIOKA
 
Yoshifumi MATSUMOTO
 
Minoru HATAYAMA
 
Noriko TAKASHIMA
 
Yayoi NOZAKI
 
Naoko YAMADA
 
Yuri ODAKA
 
Mami SUZUKI
 
Keiichi KATAYAMA
 
Takahiko FUJIMI
 
Ryoko TAKEI
 
Yoshie ITO