1. Home
  2. Research
  3. Centers & Labs
  4. RIKEN Center for Brain Science

RIKEN Center for Brain Science Laboratory for Glia-Neuron Circuit Dynamics

Team Director: Jun Nagai (Ph.D.)

Research Summary

Jun Nagai (Ph.D.)

The lab’s mission is to discover fundamental mechanisms how the brain functions and malfunctions at molecular, cellular, circuit and behavioral levels by including “the other half” of the CNS; glial cells. Studies about astrocytes, a type of glia that tile the entire brain and structurally and functionally interact with neurons, synapses and other glia, have lagged behind partially due to the lack of tools. By developing and utilizing opto-/pharmaco-genetic, imaging, molecular biology and electrophysiology tools, the team aims to unveil astrocyte contributions to adaptive and maladaptive animal behaviors for delivering insights on future therapeutics.

Main Research Fields

  • Biological Sciences

Related Research Fields

  • Complex Systems
  • Biology
  • Neurophysiology/General neuroscience, Neurochemistry/Neuropharmacology
  • Animal physiology/Animal behavior
  • Molecular biology

Keywords

  • Adaptive behavior
  • Cognition and emotion
  • Glia
  • Cellular physiology
  • Genetics

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

  • 1. 1Dewa, K-I., 1Kaseda, K., Kuwahara, A., Kubotera, H., Yamasaki, A., Awata, N., Komori, A., Holtz, M.A., Kasai, A., Skibbe, H., Takata, N., Yokoyama, T., Tsuda, M., Numata, G., Nakamura, S., Takimoto, E., Sakamoto, M., Ito, M., Masuda, T., Nagai, J. (1co-first authors)
    "The astrocytic ensemble acts as a multiday trace to stabilize memory."
    Nature 648(8092):146-156. (2025).
  • 2. Liu, Y., Lin, W., Bai, Z., Ge, Y., Xiao, Y., Zhu, F., Zhang, J., Wang, B., Li, Q., Gao, L., Li, Y., Shan, C., Nagai, J., Wu, Y., Xu, T-L., Gao, Z.
    "Lcn2 from neutrophil extracellular traps induces astrogliosis and post-stroke emotional disorders."
    Neuron 113(24):4199-4216.e8. (2025).
  • 3. Wulaer, B., Holtz, M.A., Nagai, J.
    "Homeostasis to Allostasis: Prefrontal Astrocyte Roles in Cognitive Flexibility and Stress Biology."
    Advances in Neurobiology, 39, 137–163. (2024)
  • 4. Dewa, K-I., Arimura, N., Kakegawa, W., Itoh, M., Adachi, T., Miyashita, S., Inoue, Y-U., Hizawa, K., Hori, K., Honjoya, N., Yagishita, H., Taya, S., Miyazaki, T., Usui, C., Tatsumoto, S., Tsuzuki, A., Uetake, H., Sakai, K., Yamakawa, K., Sasaki, T., Nagai, J., Kawaguchi, Y., Sone, M., Inoue, T., Go, Y., Ichinohe, N., Kaibuchi, K., Watanabe, M., Koizumi, S., Yuzaki, M., Hoshino, M.
    "Neuronal DSCAM regulates the peri-synaptic localization of GLAST in Bergmann glia for functional synapse formation."
    Nature Communications, 15(1), 458. (2024)
  • 5. Nagai, J., Bellafard, A., Qu, Z., Yu, X., Ollivier, M., Gangwani, M.R., Diaz-Castro, B., Coppola, G., Schumacher, S.M., Golshani, P., Gradinaru, V., Khakh, B.S.
    "Specific and behaviourally consequential astrocyte Gq GPCR signaling attenuation in vivo with iβARK.”
    Neuron 109(14):2256-2274.e9. (2021).
  • 6. *1Wang, W., 1Schuette, P.J., Nagai, J., Tobias, B.C., Cuccovia V Reis, F.M., Ji, S., de Lima, M.A.X., La-Vu, M.Q., Maesta-Pereira, S., Chakerian, M., Leonard, S.J., Lin, L., Severino, A.L., Cahill, C.M., Canteras, N.S., Khakh, B.S., Kao, J.C., Adhikari, A. (1co-first authors)
    "Coordination of escape and spatial navigation circuits orchestrates versatile flight from threats.”
    Neuron 109(11):1848-1860. (2021).
  • 7. 1Nagai, J., 1Yu, X., Papouin, T., Cheong, E., Freeman, M.R., Monk, K.R., Hastings, M.H., Haydon, P.G., Rowitch, D., Shaham, S., Khakh, B.S. (1co-first authors)
    "Behaviorally consequential astrocytic regulation of neural circuits.”
    Neuron 109(4):576-596. (2021).
  • 8. *1Yu, X., 1Nagai, J., Marti, M., Coppola, G., Babu, M. M., Khakh, B.S. (1co-first authors)
    "Context-specificastrocyte molecular responses are phenotypically exploitable.”
    Neuron 108(6):1146-1162. (2020).
  • 9. *1Yu, X., 1Nagai, J., Khakh, B.S. (1co-first authors)
    "Improved tools to study astrocytes.”
    Nature Reviews Neuroscience 21,121-138. (2020).
  • 10. *Nagai, J., Rajbhandari, A.K., Gangwani, M.R., Hachisuka, A., Coppola, G., Masmanidis, S.C., Fanselow, M.S., Khakh, B.S.
    "Hyperactivity with disrupted attention induced by activation of an astrocyte synaptogenic cue.”
    Cell 177(5), 1280-92. (2019).

Recent Research Results

Related Links

Lab Members

Principal investigator

Jun Nagai
Team Director

Contact Information

Central building, 6F, S602
2-1 Hirosawa
Wako, Saitama
351-0198, Japan

Email: jun.nagai@riken.jp

Top