R
Ryutaro Fukui
Researcher at University of Tokyo
Publications - 39
Citations - 1633
Ryutaro Fukui is an academic researcher from University of Tokyo. The author has contributed to research in topics: Toll-like receptor & TLR7. The author has an hindex of 17, co-authored 35 publications receiving 1343 citations.
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Journal ArticleDOI
Double-stranded RNA of intestinal commensal but not pathogenic bacteria triggers production of protective interferon-β.
Tadaomi Kawashima,Akemi Kosaka,Huimin Yan,Zijin Guo,Ryosuke Uchiyama,Ryutaro Fukui,Daisuke Kaneko,Yutaro Kumagai,Dong-Ju You,Joaquim Carreras,Satoshi Uematsu,Myoung Ho Jang,Myoung Ho Jang,Osamu Takeuchi,Osamu Takeuchi,Tsuneyasu Kaisho,Shizuo Akira,Kensuke Miyake,Hiroko Tsutsui,Takashi Saito,Ikuko Nishimura,Noriko M. Tsuji +21 more
TL;DR: It is suggested that dsRNA in commensal bacteria contributes to anti-inflammatory and protective immune responses and is identified as a discriminatory sensor to small intestinal commensals by using Toll-like receptor 3.
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A protein associated with Toll-like receptor (TLR) 4 (PRAT4A) is required for TLR-dependent immune responses
Koichiro Takahashi,Takuma Shibata,Sachiko Akashi-Takamura,Takashi Kiyokawa,Yasutaka Wakabayashi,Natsuko Tanimura,Toshihiko Kobayashi,Fumi Matsumoto,Ryutaro Fukui,Taku Kouro,Yoshinori Nagai,Kiyoshi Takatsu,Shin-ichiroh Saitoh,Kensuke Miyake +13 more
TL;DR: The results suggest that PRAT4A regulates the subcellular distribution and response of multiple TLRs and is required for both innate and adaptive immune responses.
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Unc93B1 Restricts Systemic Lethal Inflammation by Orchestrating Toll-like Receptor 7 and 9 Trafficking
Ryutaro Fukui,Shin-ichiroh Saitoh,Atsuo Kanno,Masahiro Onji,Takuma Shibata,Akihiko Ito,Morikazu Onji,Mitsuru Matsumoto,Shizuo Akira,Nobuaki Yoshida,Kensuke Miyake +10 more
TL;DR: It is demonstrated that mice harboring a D34A mutation showed TLR7-dependent, systemic lethal inflammation and CD4(+) T cells showed marked differentiation toward T helper 1 (Th1) or Th17 cell subsets and B cell depletion abolished T cell differentiation and systemic inflammation.
Journal ArticleDOI
Unc93B1 biases Toll-like receptor responses to nucleic acid in dendritic cells toward DNA- but against RNA-sensing
Ryutaro Fukui,Shin-ichiroh Saitoh,Fumi Matsumoto,Hiroko Kozuka-Hata,Masaaki Oyama,Koichi Tabeta,Bruce Beutler,Kensuke Miyake +7 more
TL;DR: It is shown that TLR7 and 9 are inversely linked by Unc93B1, a multiple membrane-spanning endoplasmic reticulum (ER) protein, and collectively, TLR response to nucleic acids in DCs is biased toward DNA-sensing by Unc 93B1.
Journal ArticleDOI
DNase II-dependent DNA digestion is required for DNA sensing by TLR9
Mabel M. P. Chan,Masahiro Onji,Ryutaro Fukui,Kohki Kawane,Takuma Shibata,Shin-ichiroh Saitoh,Umeharu Ohto,Toshiyuki Shimizu,Glen N. Barber,Kensuke Miyake +9 more
TL;DR: It is shown that DNase II is required for TLR9 activation by bacterial genomic DNA, and test two types ofTLR9 ligands, CpG-A and C pG-B, and demonstrate that TLR 9 responds to DNA fragments generated by DNaseII.