RIKEN Center for Integrative Medical Sciences Laboratory for Skin Homeostasis
Team Director: Masayuki Amagai (M.D., Ph.D)
Research Summary

Skin is an organ which covers the outer surface of living bodies. Skin diseases have been categorized based on the morphology of skin lesions, which are now being explained with molecular mechanisms. Many of these skin diseases are caused by immunological abnormalities. Skin is the place where sensitization to external antigens as well as peripheral tolerance to autoantigen take place. Our research group is trying to reveal the entire picture of the skin as an immune organ, clarify the pathophysiological mechanisms of allergic and autoimmune diseases, and develop novel therapeutic strategies based on their molecular mechanisms.
Main Research Fields
- Medicine, Dentistry & Pharmacy
Related Research Fields
- Biology
Keywords
- skin
- epidermis
- stratum corneum
- atopic dermatitis
- barrier
Selected Publications
- 1.
Fukuda K, Ito Y, Furuichi Y, Matsui T, Horikawa H, Miyano T, Okada T, van Logtestijn M, Tanaka RJ, Miyawaki A, Amagai M.:
"Three stepwise pH progressions in stratum corneum for homeostatic maintenance of the skin."
Nat Commun 15(1): 4062.2024 - 2.
Tahara U, Matsui T, Atsugi T, Fukuda K, Terooatea TW, Minoda A, Kubo A, Amagai M.:
"Keratinocytes of the Upper Epidermis and Isthmus of Hair Follicles Express Hemoglobin mRNA and Protein."
J Invest Dermatol. 143(12): 2346-55.e10. 2023 - 3.
Sekita A, Kawasaki H, Fukushima-Nomura A, Yashiro K, Tanese K, Toshima S, Ashizaki K, Miyai T, Yazaki J, Kobayashi A, Namba S, Naito T, Wang QS, Kawakami E, Seita J, Ohara O, Sakurada K, Okada Y, Amagai M, Koseki H.:
"Multifaceted analysis of cross-tissue transcriptomes reveals phenotype-endotype associations in atopic dermatitis."
Nat Commun 14(1): 6133.2023 - 4.
Morimoto A, Fukuda K, Ito Y, Tahara U, Sasaki T, Shiohama A, Kawasaki H, Kawakami E, Naganuma T, Arita M, Sasaki H, Koseki H, Matsui T, Amagai M.:
"Microbiota-Independent Spontaneous Dermatitis Associated with Increased Sebaceous Lipid Production in Tmem79-Deficient Mice."
J Invest Dermatol 142(11): 2864-72.e6.2022 - 5.
Iriki H, Takahashi H, Wada N, Nomura H, Mukai M, Kamata A, Ito H, Yamagami J, Matsui T, Kurebayashi Y, Mise-Omata S, Nishimasu H, Nureki O, Yoshimura A, Hori S, Amagai M.:
"Peripheral tolerance by Treg via constraining OX40 signal in autoreactive T cells against desmoglein 3, a target antigen in pemphigus."
Proc Natl Acad Sci U.S.A. 118(49):e2026763118. 2021 - 6.
Takahashi H, Nomura H, Iriki H, Kubo A, Isami K, Mikami Y, Mukai M, Sasaki T, Yamagami , KudoJ, Ito H, Kamata A, Kurebayashi Y, Yoshida H, Yoshimura A, Sun H, Suematsu M, O’Shea, JJ, Kanno Y, Amagai M.:
"Cholesterol 25-hydroxylase is a metabolic switch to constrain T cell-mediated inflammation in the skin."
Sci Immunol 6(64):eabb6444. 2021 - 7.
Matsui T, Kadono-Maekubo N, Suzuki Y, Furuichi Y, Shiraga K, Sasaki H, Ishida A, Sonoko Takahashi S, Okada T, Toyooka K, Sharif J, Abe T, Kiyonari H, Tominaga M, Miyawaki A, Amagai M.:
"A unique mode of keratinocyte death requires intracellular acidification."
Proc Natl Acad Sci U.S.A. 118(17):e2020722118. 2021 - 8.
Someya T, Amagai M.:
"Toward a new generation of smart skin."
Nat Nanotechnol 37(4):382-88. 2019. - 9.
Miyamoto A, Lee S, Cooray NF, Lee S, Mori M, Matsuhisa N, Jin H, Yoda L, Yokota T, Itoh A, Sekino M, Kawasaki H, Ebihara T, Amagai M, Someya T.:
"Inflammation-free, gas-permeable, lightweight, stretchable on-skin electronics with nanomeshes."
Nat Nanotechnol 12(9):907-13. 2017. - 10.
Yokouchi M, Atsugi T, Logtestijn MV, Tanaka RJ, Kajimura M, Suematsu M, Furuse M, Amagai M, Kubo A.:
"Epidermal cell turnover across tight junctions based on Kelvin's tetrakaidecahedron cell shape."
eLife 5:e19593. 2016.
Related Links
Lab Members
Principal investigator
- Masayuki Amagai
- Team Director
Core members
- Hiroshi Kawasaki
- Senior Research Scientist
- Keitaro Fukuda
- Senior Research Scientist
- Ritsuko Ozawa
- Technical Staff I
- Rika Yokoo
- Technical Staff II
Contact Information
1-7-22 Suehiro-cho, Tsurumi-ku,
Yokohama City, Kanagawa,
230-0045, Japan
Email: masayuki.amagai@riken.jp