RIKEN Center for Advanced Photonics Biotechnological Optics Research Team

Team Director: Atsushi Miyawaki (M.D., Ph.D)

Japanese Page

Research Summary

The behavior of biochemical molecules moving around in cells makes me think of a school of whales wandering in the ocean, captured by the Argos system on the artificial satellite. When bringing a whale back into the sea --- with a transmitter on its dorsal fin, every staff member hopes that it will return safely to a school of its species. A transmitter is now minute in size, but it was not this way before. There used to be some concern that a whale fitted with a transmitter could be given the cold shoulder and thus ostracized by other whales for “wearing something annoying.” How is whale’s wandering related to the tide or a shoal of small fish? What kind of interaction is there among different species of whales? We human beings have attempted to fully understand this fellow creature in the sea both during and since the age of whale fishing. In a live cell imaging experiment, a luminescent probe replaces a transmitter. We label a luminescent probe on a specific region of a biological molecule and bring it back into a cell. We can then visualize how the biological molecule behaves in response to external stimulation. Since luminescence is a physical phenomenon, we can extract various kinds of information by making full use of its characteristics. Cruising inside cells in a supermicro corps, gliding down in a microtubule like a roller coaster, pushing our ways through a jungle of chromatin while hoisting a flag of nuclear localization signal --- we are reminded to retain a playful and adventurous perspective at all times. What matters is mobilizing all capabilities of science and giving full play to our imagination. We believe that such serendipitous findings can arise out of such a sportive mind, a frame of mind that prevails when enjoying whale-watching.

Main Research Fields

Biological Sciences

Related Research Fields

Chemistry
Biophysics

Keywords

Bioimaging
Fluorescence protein
Chromophore

Selected Publications

1.Ando R., Shimozono S., Ago H., Takagi M., Sugiyama M., Kurokawa H., Hirano M., Niino Y., Ueno G., Ishidate F., Fujiwara T., Okada Y., Yamamoto M., Miyawaki A.:
"StayGold variants for molecular fusion and membrane-targeting applications."
Nature Methods 21(4):648-656. (2024)
2.Hirano M., Ando R., Shimozono S., Sugiyama M., Takeda N., Kurokawa H., Deguchi R., Endo K., Haga K., Takai-Todaka R., Inaura S., Matsumura Y., Hama H., Okada Y., Fujiwara T., Morimoto T., Katayama K., Miyawaki A.:
"A highly photostable and bright green fluorescent protein."
Nature Biotechnology 40:1132-1142. (2022)
3.Michikawa T., Yoshida T., Kuroki S., Ishikawa T., Kakei S., Kimizuka R., Saito A., Yokota H., Shimizu A., Itohara S., Miyawaki A.:
"Distributed sensory coding by cerebellar complex spikes in units of cortical segments."
Cell Reports 37(6):109966. (2021)
4.Katayama H., Hama H., Nagasawa K., Kurokawa H., Sugiyama M., Ando R., Funata M., Yoshida N., Homma M., Nishimura T., Takahashi M., Ishida Y., Hioki H., Tsujihata Y., Miyawaki A.:
"Visualizing and modulating mitophagy for therapeutic studies of neurodegeneration."
Cell 181: 1176-1187 (2020)
5.Iwano S., Sugiyama M., Hama H., Watakabe A., Hasegawa N., Kuchimaru T., Tanaka K. Z., Takahashi M., Ishida Y., Hata J., Shimozono S., Namiki K., Fukano T., Kiyama M., Okano, S., Kizaka-Kondoh H., McHugh, T.J., Yamamori T., Hioki H., Maki S., Miyawaki A.:
"Single-cell bioluminescence imaging of deep tissue in freely moving animals."
Science 359: 935-939. (2018)
6.Sakaue-Sawano A., Yo M., Komatsu N., Hiratsuka T., Kogure T., Hoshida T., Goshima N., Matsuda M., Miyoshi H., Miyawaki A.:
"Genetically Encoded Tools for Optical Dissection of the Mammalian Cell Cycle."
Molecular Cell 68: 626-640. (2017)
7.Miyawaki A.:
"Roger Y. Tsien (1952-2016)."
Cell 167 (2): 298-300. (2016)
8.Miyawaki A.:
"Exploiting the cyanobacterial light-harvesting machinery for developing fluorescent probes."
Nature Methods 13 (9): 729-730. (2016)
9.Hama H., Hioki H., Namiki K., Hoshida T., Kurokawa H., Ishidate F., Kaneko T., Akagi T., Saito T., Saido T., Miyawaki A.:
"ScaleS: an optical clearing palette for biological imaging."
Nature Neuroscience 18 (10):1518-1529 (2015)
10.Miyawaki A., Niino Y.:
"Molecular spies for bioimaging - Fluorescent protein-based probes."
Molecular Cell 48 (4): 632-643 (2015)

Lab Members

Principal investigator

Atsushi Miyawaki: Team Director

Core members

Asako sakaue-sawano: Research Scientist
Masahiko Hirano: Technical Scientist
Asako Tosaki: Technical Staff II

Contact Information

2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Email: miyawaki-lab.ast@ml.riken.jp