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Hayama, Yoshitomo; Kimura, Tetsuya; Takeda, Yoshito; Nada, Shigeyuki; Koyama, Shohei; Takamatsu, Hyota; Kang, Sujin; Ito, Daisuke; Maeda, Yohei; Nishide, Masayuki; Nojima, Satoshi; Sarashina-Kida, Hana; Hosokawa, Takashi; Kinehara, Yuhei; Kato, Yasuhiro; Nakatani, Takeshi; Nakanishi, Yoshimitsu; Tsuda, Takeshi; Koba, Taro; Okada, Masato; Kumanogoh, Atsushi
The Journal of immunology (1950), 06/2018, Letnik: 200, Številka: 11Journal Article
Amino acid metabolism plays important roles in innate immune cells, including macrophages. Recently, we reported that a lysosomal adaptor protein, Lamtor1, which serves as the scaffold for amino acid-activated mechanistic target of rapamycin complex 1 (mTORC1), is critical for the polarization of M2 macrophages. However, little is known about how Lamtor1 affects the inflammatory responses that are triggered by the stimuli for TLRs. In this article, we show that Lamtor1 controls innate immune responses by regulating the phosphorylation and nuclear translocation of transcription factor EB (TFEB), which has been known as the master regulator for lysosome and autophagosome biogenesis. Furthermore, we show that nuclear translocation of TFEB occurs in alveolar macrophages of myeloid-specific Lamtor1 conditional knockout mice and that these mice are hypersensitive to intratracheal administration of LPS and bleomycin. Our observation clarified that the amino acid-sensing pathway consisting of Lamtor1, mTORC1, and TFEB is involved in the regulation of innate immune responses.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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