{"created":"2023-07-27T06:44:30.803617+00:00","id":34764,"links":{},"metadata":{"_buckets":{"deposit":"43be5963-fd16-45c0-9e6d-20262dca455a"},"_deposit":{"created_by":3,"id":"34764","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"34764"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00034764","sets":["2812:2813:2828"]},"author_link":["84772","124"],"item_9_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-05-01","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"5p.","bibliographicVolumeNumber":"2004-2005","bibliographic_titles":[{"bibliographic_title":"平成17(2005)年度科学研究費補助金 基盤研究(C) 研究報告書"},{"bibliographic_title":"2005 Fiscal Year Final Research Report","bibliographic_titleLang":"en"}]}]},"item_9_creator_33":{"attribute_name":"著者別表示","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{}],"nameIdentifiers":[{},{}]}]},"item_9_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"FAK活性はJSAP1とp130casの共発現により増強され、その結果JSAP1とp130casのリン酸化を亢進した。JSAP1をグリオーマ細胞株U87MG細胞に遺伝子導入するとJNKのリン酸化が誘導され、fibronectin(FN)上での細胞運動が亢進された。しかし、JNK結合部位を欠質したJSAP1変異体発現では細胞運動の亢進は認められなかった。JSAP1を遺伝子導入した細胞の運動先端部にJNKとJSAP1の集積が認められ、細胞運動はJNK阻害剤により抑制された。また、脳腫瘍組織を用いてMAPK足場蛋白(JIP-1,-2,JSAP1)のmRNA発現を検討した結果、JSAP1の発現と悪性度に正の相関が認められた。JSAP1は運動細胞の先端部にJNKを誘導し、FAKを介したJNK活性化経路を亢進することにより細胞運動を調節していると考えられた。 また、HT1080細胞のI型コラーゲンおよびFN上での細胞運動はMMP阻害剤BB94により抑制され、ECM分解の減少、細胞接着斑の過形成と運動極性の喪失が認められた。一方MT1-MMPの過剰発現はECM分解、細胞運動と細胞接着斑のturnoverの亢進を誘導し、dominant-negative体の発現でその抑制が認められた。HT1080細胞のBB94処理は細胞接着により誘導されるERK活性化を抑制する一方で、FAKの自己リン酸化(チロシン397番)を亢進していた。以上の結果からMT1-MMPは細胞接着により誘導されるERK活性化、FAKの自己リン酸化を調節することにより細胞接着斑、細胞運動を制御していることが示唆された。 細胞運動時の極性形成・維持機序は方向性を持った細胞運動およびその延長線上にあるがん浸潤・転移の機構を解明する上で重要である。JNK結合分子は細胞接着斑におけるJNKの局在と活性化部位を誘導することで細胞運動時の極性形成・維持を制御していると予想される。また、MT1-MMPによるECMの分解・再編をともなった微小環境の整備が細胞極性形成・維持に密接に関与していると推測される。ECMにおける極性を有した細胞運動とMT1-MMP活性発現の協調的な制御機構を解明することは、がんの浸潤・転移阻止の標的分子の同定、薬剤開発に貢献できるものと思われる。","subitem_description_type":"Abstract"},{"subitem_description":"JNK/SAPK-associated protein 1(JSAP1) mediated an association between focal adhesion kinase (FAK) and JNK, which was induced by either co-expression of Src or attachment of cells to fibronectin (FN). Complex formation of FAK with JSAP1 and p130 Crk-associated substrate (p130^<Cas>) resulted in augmentation of FAK activity and phosphorylation of both JSAP1 and p130^<Cas>, which required p130^<Cas> hyperphosphorylation and was abolished by inhibition of Src. JNK activation by FN was enhanced by JSAP1, which was suppressed by disrupting the FAK/p130^<Cas> pathway by expression of a dominant-negative form of p130^<Cas> or by inhibiting Src. JSAP1 was co-localized with JNK and phosphorylated FAK at the leading edge and stimulated of cell migration, which depended on its JNK binding domain and was suppressed by inhibition of JNK. The level of JSAP1 mRNA correlated with advanced malignancy in brain tumors, unlike other JIPs. We propose that the JSAP1/FAK complex functions cooperatively as a sc affold for the JNK signaling pathway and regulator of cell migration on FN, and we suggest that JSAP1 is also associated with malignancy in brain tumors.\nMT1-MMP expression promoted FN-induced cell migration, which was accompanied by FN degradation and reduction of stable focal adhesions, which function as anchors for actin-stress fibers, and attenuated integrin clustering. The attenuation of integrin clustering was abrogated by MT1-MMP inhibition. When cultured on fibronectin, HT1080 cells, which endogenously express MT1-MMP, showed so-called motile morphology with well-organized focal adhesion formation, well-oriented actin-stress fiber formation and the lysis of FN through trails of cell migration. Inhibition of endogenous MT1-MMP resulted in the suppression of FN lysis and cell migration and promotion of stable focal adhesion formation concomitant with enhanced phosphorylation of tyrosine 397 of FAK and reduced ERK activation. These results suggest that lysis of the extracellular matrix by MT1-MMP promotes focal adhesion turnover and subsequent ERK activation, which in turn stimulates cell migration.","subitem_description_type":"Abstract"}]},"item_9_description_22":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"研究課題/領域番号:16590241, 研究期間(年度):2004–2005","subitem_description_type":"Other"},{"subitem_description":"出典：「JNK結合分子による細胞運動極性制御機構の解析」研究成果報告書　課題番号16590241\n  (KAKEN：科学研究費助成事業データベース（国立情報学研究所）)\n　　　本文データは著者版報告書より作成","subitem_description_type":"Other"}]},"item_9_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.24517/00034751","subitem_identifier_reg_type":"JaLC"}]},"item_9_publisher_17":{"attribute_name":"公開者","attribute_value_mlt":[{"subitem_publisher":"金沢大学がん研究所"}]},"item_9_relation_28":{"attribute_name":"関連URI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/search/?qm=40322119","subitem_relation_type_select":"URI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16590241/","subitem_relation_type_select":"URI"}},{"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-16590241/165902412005kenkyu_seika_hokoku_gaiyo/","subitem_relation_type_select":"URI"}}]},"item_9_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-10-05"}],"displaytype":"detail","filename":"CA-PR-TAKINO-T-kaken 2006-5p.pdf","filesize":[{"value":"1.0 MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"CA-PR-TAKINO-T-kaken 2006-5p.pdf","url":"https://kanazawa-u.repo.nii.ac.jp/record/34764/files/CA-PR-TAKINO-T-kaken 2006-5p.pdf"},"version_id":"7166eb36-8dbb-4db4-b5ba-4f7dff06e0e3"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"JNK結合分子による細胞運動極性制御機構の解析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"JNK結合分子による細胞運動極性制御機構の解析"},{"subitem_title":"Analysis of regulatory mechanism for cell polarity formation by JNK binding molecules during migration","subitem_title_language":"en"}]},"item_type_id":"9","owner":"3","path":["2828"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-10-05"},"publish_date":"2017-10-05","publish_status":"0","recid":"34764","relation_version_is_last":true,"title":["JNK結合分子による細胞運動極性制御機構の解析"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-27T14:32:08.453984+00:00"}