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Laboratory for Neocortical Development
Carina HANASHIMA
Team Leader
Carina HANASHIMA (Ph.D.)
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Research Areas

Research in our laboratory explores how neurons in the neocortex acquire identities that direct unique sensory perceptions and motor controls. Specifically we are interested in the developmental mechanisms of how diverse arrays of neurons are coordinated into high-functional territories. Despite its well-defined anatomical character and functional significance, the mechanisms underlying the precise assembly of distinct functional areas of the cerebral cortex remains largely unknown. In our laboratory, we address important questions concerning neocortical development: 1) What are the mechanisms by which diverse cell fate is determined in the neocortex? 2) How are neurons precisely arranged into distinct cortical areas? 3) To what extent does the refinement of functional areas rely on environmental inputs? To investigate these questions we employ genetic manipulations in mice that will enable conditional loss of gene and cellular functions, recombination mediated cell-lineage tracing, and systematic approaches to identify novel molecules responsible for areal specification. Through these studies we wish to understand the mechanistic basis by which unique sensory perceptions develop in the human neocortex.

Research Subject

  1. Molecular mechanisms of neuronal subtype specification in the neocortex
  2. Characterization of genes responsible for areal specification
  3. Extrinsic determinants in the establishment of neocortical areas

Related links

  1. RIKEN Center for Developmental Biology Website_Laboratories PageNew Window
  2. Individual Website Laboratory PageNew Window

List of Selected Publications

  1. Kasukawa T, Masumoto KH, Nikaido I, Nagano M, Uno KD, Tsujino K, Hanashima C, Shigeyoshi Y, Ueda HR.:
    "Quantitative expression profile of distinct functional regions in the adult mouse brain."
    PLoS One. 2011;6(8):e23228.
  2. Fishell G, Hanashima C.:
    "Cerebral Cortex: Symmetric vs. Asymmetric Cell Division."
    Encyclopedia of Neuroscience (2009) Larry E. Squire (Ed.), Elsevier: 785-791.
  3. Fishell G, Hanashima C.:
    "Pyramidal neurons grow up and change their mind."
    Neuron (2008) 57(3):333-8.
  4. Hanashima C, Fernandes M, Hebert JM, Fishell G.:
    "The role of Foxg1 and dorsal midline signaling in the generation of Cajal-Retzius subtypes."
    Journal of Neuroscience (2007) 27(41):11103-11
  5. Hanashima C, Li SC, Shen L, Lai E, Fishell G.:
    "Foxg1 suppresses early cortical cell fate."
    Science (2004) 303: 56-59.
  6. Hanashima, C., Shen, L., Li, S.C., Lai, E.:
    "BF-1 controls the proliferation and differentiation of neocortical progenitor cells through independent mechanisms."
    Journal of Neuroscience (2002) 22(15): 6526-36.

Members

Principal Investigator

Carina HANASHIMA
Team Leader

Members

Takuma KUMAMOTO
Research Scientist
Yuko GONDA
Research Scientist
Torsten BULLMANN
Foreign Postdoctoral Researcher
Ken-ichi TOMA
Junior Research Associate
Yuko WADA
Technical Staff II