GO TOP

Field

Integrative Life Sciences :
Brain and Nervous System

Research

Professor (Cross Appointment) HOSHINO Ayuko
Campus Katahira campus
Laboratory Systems Neuroscience
Tel +81-22-217-5052
E-mail ayuko.hoshino.b5@tohoku.ac.jp
Website https://hoshinolab-edu.com/

researchmap

 
Dr. Ayuko Hoshino studies cell- and organ-to-organ communication mediated by exosomes, small membrane-bound vesicles released by cells. Her research focuses on how exosomes derived from specific cell types and organs are transported to target tissues and induce functional changes in both health and disease. She has elucidated mechanisms by which cancer-derived exosomes home to specific organs and promote tissue remodeling associated with pre-metastatic niche formation. Through analyses of cell-type–specific and circulating exosomes, she has also demonstrated that exosomal molecular signatures reflect disease states and can serve as biomarkers for cancer detection. Building on this work, her current research extends to the roles of exosomes in neurological disorders, including autism spectrum disorder and schizophrenia, as well as in stress-related mental states.
Career
Education:
University of Tokyo        
Ph.D. in Cell and Molecular Biology, 2011        
M.Sc. in Cell and Molecular Biology, 2008    
 
Tokyo University of Science
B.Sc. in Chemistry, 2006        
 
Position and Employment:
2002-2006  Undergraduate student at Tokyo University of Science, Department of Applied Chemistry
2006-2008  Graduate student, masters program at The University of Tokyo, Department of Integrated Biosciences
2008-2011  Graduate student, Ph.D. program at The University of Tokyo, Department of Integrated Biosciences
2008-2009  Research fellow of the 21Centry COE program of The University of Tokyo
2009-2011  Research Fellow of the Japan Society for the Promotion of Science (DC2)
2010-2011  Visiting graduate student. Weill Cornell Medicine, New York.
2011-2015  Postdoctoral Associate. Weill Cornell Medicine, New York.
2013-2015  JSPS Postdoctoral Fellow for Research Abroad
2015-2016  Research associate.  Weill Cornell Medicine, New York.
2015-2018  Postdoctoral Fellow Scholar for the Susan G. Komen  (PI Ayuko Hoshino)
 
2016-2019  Instructor. Weill Cornell Medicine, New York.
2019-current   Adjunct Assistant Professor. Weill Cornell Medicine, New York
      Department of Pediatrics
2019-2020   Lecturer. IRCN, The University of Tokyo
2019-2022 PRESTO researcher
2020-2023 Associate Professor. Department of Life Science and Technology, Tokyo Institute of Technology
2023-current Professor. Research Center for Advanced Science and Technology, the University of Tokyo
2024-current InaRIS Fellow
 
Selected Publications
  1. Hoshino A, et al., Extracellular Vesicle and Particle biomarkers define multiple human cancers. Cell 2020 Aug 20;182(4):1044-1061 (First and Corresponding author).
  2. Rodrigues G*, Hoshino A*, et al., Tumour exosomal CEMIP protein promotes cancer cell colonization in brain metastasis. Nature Cell Biology 2019 Nov 4 (Co-first author)
  3. Hoshino A, et al., Tumour exosome integrins determine organotropic metastasis. Nature 2015 Nov 19;527(7578):329-35
     
Activities in Academic Societies
The Japan Neuroscience Society
American Association for Cancer Research (AACR)
The Japanese Cancer Association (JCA)
The Society of Japanese Women Scientists (SJWS)
 

Recent Activities

In recent years, our lab has focused on how exosome-mediated inter-organ communication contributes to neural function and mental and physiological states.
In particular, we study stress responses as well as neuropsychiatric disorders such as autism spectrum disorder and schizophrenia, examining how exosomes released from specific cell types and organs in response to changes in physiological or pathological states affect target tissues, including the brain.
Accumulating evidence from our work suggests that exosomes are not merely disease markers, but active mediators of information transfer that contribute to disease initiation and progression.
In parallel with these fundamental studies, our lab is also developing strategies to target exosomes for diagnostic and therapeutic applications, aiming to translate our findings toward startup creation and industrial innovation.
Through these studies, we aim to establish a new framework for understanding neurological disorders and mental states not as problems of the brain alone, but from the perspective of inter-organ communication.
 

Message to Students

The time a researcher can truly devote is limited. 
You can only do what you can do.