ヤマグチ ルイ   Rui Yamaguchi
  山口 類
   所属   熊本保健科学大学  保健科学部 医学検査学科
   熊本保健科学大学大学院  保健科学研究科 保健科学専攻
   職位   准教授
言語種別 英語
発行・発表の年月 2018/03
形態種別 研究論文(学術雑誌)
査読 査読あり
標題 Transcription factor specificity protein 1 modulates TGFβ1/Smad signaling to negatively regulate SIGIRR expression by human M1 macrophages stimulated with substance P.
執筆形態 共著
掲載誌名 Cytokine
掲載区分国外
巻・号・頁 108,pp.24-36
総ページ数 13
担当区分 筆頭著者
著者・共著者 Yamaguchi R, Sakamoto A, Yamaguchi R, Haraguchi M, Narahara S, Sugiuchi H, Yamaguchi Y
概要 The stimuli inducing expression of single immunoglobulin IL-1-related receptor (SIGIRR) and the relevant regulatory mechanisms are not well defined. Transforming growth factor β1 (TGFβ1) delays internalization of neurokinin-1 receptor (NK1R) and subsequently enhances cellular signaling. This study investigated the effect of TGFβ1 on SIGIRR protein production by human M1 macrophages in response to stimulation with substance P (SP). SP caused upregulation of SIGIRR expression in a concentration-dependent manner, whereas aprepitant (an NK1R inhibitor) blunted this response. Silencing p38γMAPK or TAK-1 partially attenuated the response to SP stimulation, while TGFβ1/2/3 siRNA dramatically diminished it. SP induced much greater SIGIRR protein production than either lipopolysaccharide (a TLR4 agonist) or resiquimod (a TLR7/8 agonist). .