{"_buckets": {"deposit": "7f592f49-64f7-40df-b09c-1fd3da8a493c"}, "_deposit": {"id": "5838", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "5838"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00005838", "sets": ["455", "562"]}, "item_6_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "前立腺がん細胞内における非活性型アンドロゲン5α-androstane-3β,17β-diolからのジヒドロテストステロン合成：アビラテロンによるがん細胞内3β-水酸化ステロイド脱水素酵素阻害"}]}, "item_6_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2017-03-23", "bibliographicIssueDateType": "Issued"}, "bibliographic_titles": [{}]}]}, "item_6_date_granted_51": {"attribute_name": "学位授与年月日", "attribute_value_mlt": [{"subitem_dategranted": "2017-03-23"}]}, "item_6_degree_grantor_49": {"attribute_name": "学位授与機関", "attribute_value_mlt": [{"subitem_degreegrantor": [{"subitem_degreegrantor_name": "新潟大学"}]}]}, "item_6_degree_name_48": {"attribute_name": "学位名", "attribute_value_mlt": [{"subitem_degreename": "博士（医学）"}]}, "item_6_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Intratumoural dihydrotestosterone (DHT) synthesis could be an explanation for castration resistance\\nin prostate cancer (PC). By using liquid chromatography-mass spectrometry, we evaluated the\\nintratumoral DHT synthesis from 5α-androstane-3β,17β-diol (3β-diol), which is inactive androgen metabolized from DHT. 3β-diol had biochemical potential to be converted to DHT via three metabolic pathways and could stimulate PC cell growth. Especially, 3β-diol was not only converted back to upstream androgens such as dehydroepiandrosterone (DHEA) or Δ5-androstenediol but also converted directly to DHT which is the main pathway from 3β-diol to DHT. Abiraterone had a significant influence on the metabolism of DHEA, epiandrosterone and 3β-diol, by the inhibition of the intratumoural 3β-hydroxysteroid dehydrogenase (3β-HSD) activities which is one of key catalysts in androgen metabolic pathway. The direct-conversion of 3β-diol to DHT was catalysed by 3β-HSD and abiraterone could inhibit this activity of 3β-HSD. These results suggest that PC had a mechanism of intratumoural androgen metabolism to return inactive androgen to active androgen and intratumoural DHT synthesis from 3β-diol is important as one of the mechanisms of castration resistance in PC. Additionally, the inhibition of intratumoural 3β-HSD activity could be a new approach to castration-resistant prostate\\ncancer treatment.", "subitem_description_type": "Abstract"}]}, "item_6_description_5": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "学位の種類: 博士（医学）. 報告番号: 甲第4250号. 学位記番号: 新大院博（医）甲第728号. 学位授与年月日: 平成29年3月23日", "subitem_description_type": "Other"}, {"subitem_description": "Scientific Reports 6 Article number 32198,2016", "subitem_description_type": "Other"}]}, "item_6_description_53": {"attribute_name": "学位記番号", "attribute_value_mlt": [{"subitem_description": "新大院博（医）甲第728号", "subitem_description_type": "Other"}]}, "item_6_dissertation_number_52": {"attribute_name": "学位授与番号", "attribute_value_mlt": [{"subitem_dissertationnumber": "13101甲第4250号"}]}, "item_6_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "50960", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "安藤, 嵩"}]}]}, "item_6_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "新潟大学"}]}, "item_6_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "info:doi/10.1038/srep32198", "subitem_relation_type_select": "DOI"}}]}, "item_6_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "ETD"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Ando, Takashi"}], "nameIdentifiers": [{"nameIdentifier": "50959", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-05"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "h28nmk728.pdf", "filesize": [{"value": "1.1 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1100000.0, "url": {"label": "本文", "url": "https://niigata-u.repo.nii.ac.jp/record/5838/files/h28nmk728.pdf"}, "version_id": "5a75b354-1b5f-4c43-8ea7-f020e5415731"}, {"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-05"}], "displaytype": "detail", "download_preview_message": "", "file_order": 1, "filename": "h28nmk728_a.pdf", "filesize": [{"value": "199.6 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 199600.0, "url": {"label": "要旨", "url": "https://niigata-u.repo.nii.ac.jp/record/5838/files/h28nmk728_a.pdf"}, "version_id": "2bfb55f2-6d83-4144-b7dd-247c67d721b3"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "thesis", "resourceuri": "http://purl.org/coar/resource_type/c_46ec"}]}, "item_title": "Dihydrotestosterone synthesis pathways from inactive androgen 5α-androstane-3β,17β-diol in prostate cancer cells: Inhibition of intratumoural 3β-hydroxysteroid dehydrogenase activities by abiraterone.", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Dihydrotestosterone synthesis pathways from inactive androgen 5α-androstane-3β,17β-diol in prostate cancer cells: Inhibition of intratumoural 3β-hydroxysteroid dehydrogenase activities by abiraterone."}, {"subitem_title": "Dihydrotestosterone synthesis pathways from inactive androgen 5α-androstane-3β,17β-diol in prostate cancer cells: Inhibition of intratumoural 3β-hydroxysteroid dehydrogenase activities by abiraterone.", "subitem_title_language": "en"}]}, "item_type_id": "6", "owner": "1", "path": ["455", "562"], "permalink_uri": "http://hdl.handle.net/10191/47581", "pubdate": {"attribute_name": "公開日", "attribute_value": "2018-09-11"}, "publish_date": "2018-09-11", "publish_status": "0", "recid": "5838", "relation": {}, "relation_version_is_last": true, "title": ["Dihydrotestosterone synthesis pathways from inactive androgen 5α-androstane-3β,17β-diol in prostate cancer cells: Inhibition of intratumoural 3β-hydroxysteroid dehydrogenase activities by abiraterone."], "weko_shared_id": 2}