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Signalling pathway involving GULP, MAPK and Rac1 for SR-BI-induced phagocytosis of apoptotic cells.
http://hdl.handle.net/2297/18196
http://hdl.handle.net/2297/181963fc50955-6b90-4938-b31a-423061ce885e
名前 / ファイル | ライセンス | アクション |
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PH-PR-NAKANISHI-Y-387.pdf (242.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-04 | |||||
タイトル | ||||||
タイトル | Signalling pathway involving GULP, MAPK and Rac1 for SR-BI-induced phagocytosis of apoptotic cells. | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Osada, Yoichi
× Osada, Yoichi× Sunatani, Toshiro× Kim, In-San× Nakanishi, Yoshinobu× Shiratsuchi, Akiko |
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提供者所属 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 金沢大学医薬保健研究域薬学系 | |||||
書誌情報 |
Journal of biochemistry 巻 145, 号 3, p. 387-394, 発行日 2009-03-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1756-2651 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1093/jb/mvn176 | |||||
出版者 | ||||||
出版者 | 日本生化学会 = Japanese Biochemical Society | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Class B scavenger receptor type I (SR-BI) is a phosphatidylserine (PS)-recognizing receptor of testicular Sertoli cells responsible for the phagocytosis of spermatogenic cells undergoing apoptosis. Here, we determined signal mediators that compose a signalling pathway for SR-BI-induced phagocytosis. Results of a yeast two-hybrid analysis and a cell-free binding assay indicated that SR-BI binds to engulfment adapter protein (GULP) using the C-terminal intracellular domain. A co-immunoprecipitation analysis showed the existence of a complex of GULP and SR-BI in cells prior to the activation of SR-BI by PS. A reduction of GULP expression in phagocytes decreased the SR-BI-mediated phagocytosis of apoptotic cells. Administration to phagocytes of PS-containing liposomes increased the levels of the GTP-bound form of Rac1 and the phosphorylated forms of mitogen-activated protein kinases (MAPK) p38 and extracellular signal-related kinase 1 and 2. Finally, lowering the expression of GULP abrogated MAPK phosphorylation, and the presence of MAPK inhibitors reduced the level of GTP-bound Rac1 in PS-activated phagocytes. These results collectively suggested the following signalling pathway for the SR-BI-induced phagocytosis: (i) PS-recognizing SR-BI activates associated GULP; (ii) activated GULP induces MAPK phosphorylation; (iii) activated MAPK increases GTP-bound Rac1; and (iv) activated Rac1 induces a rearrangement of the actin cytoskeleton. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://jb.oxfordjournals.org/cgi/content/abstract/145/3/387 |