Hideaki Morita, MD, PhD

Where do you work?

National Research Institute for Child Health and Development, Japan

What are your research interests?

My research interests focus on understanding how genetic predisposition and environmental exposures interact to drive the onset and progression of allergic diseases. I am particularly interested in elucidating the cellular and molecular mechanisms by which these genetic and environmental factors shape immune responses and contribute to disease heterogeneity. Ultimately, I aim to translate these mechanistic insights into improved diagnostic strategies and targeted therapies for patients with severe allergic and immunologic disorders.

What scientific achievements are you most proud of?

I am most proud of identifying novel monogenic variants in key type-2 immune signaling molecules, including STAT6 and JAK1, that cause severe allergic and immunologic diseases. In addition, I have helped elucidate how environmental factors trigger allergic inflammation through IL-33–mediated pathways, demonstrating a mechanistic link between epithelial stress responses and type-2 inflammatory activation. Together, these achievements highlight the importance of integrating human genetics with environmental immunology to better understand and treat severe allergic disorders.

Who nominated you to join the Collegium?

Prof. Cezmi Akdis

How has being a member of the Collegium benefited your career?

Being a member of the Collegium has greatly enriched my career by providing opportunities to communicate and collaborate with outstanding researchers from diverse fields. Through these interactions, I have gained new perspectives, constructive feedback, and inspiration that have directly contributed to the development of innovative ideas and research directions. The supportive and intellectually stimulating environment of the Collegium has been invaluable in accelerating both my scientific growth and my ability to contribute meaningfully to the allergy and immunology community.

What are your hobbies or what do you spend most of your time doing?

Cooking

Inducted into the Collegium: October 2025