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博士論文
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DOI[info:doi/10.1186/s13046-017-0554-9]のデータに遷移します
RERG suppresses cell proliferation, migration and angiogenesis through ERK/NF-кB signaling pathway in nasopharyngeal carcinoma
- 国立国会図書館永続的識別子
- info:ndljp/pid/11008904
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- application/pdfBackground: Nasopharyngeal carcinoma (NPC) is a malignancy of the head and neck that is prevalent in Southeast Asia and southern China....
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デジタル
- 資料種別
- 博士論文
- 著者・編者
- Zhao, Weilin
- 著者標目
- 出版事項
- 出版年月日等
- 2017-09-20
- 出版年(W3CDTF)
- 2017-09-20
- 授与機関名
- 三重大学
- 授与年月日
- 2017-09-20
- 授与年月日(W3CDTF)
- 2017-09-20
- 報告番号
- 甲医学第1855号
- 学位
- 博士(医学)
- 博論授与番号
- 甲医学第1855号
- 本文の言語コード
- eng
- 著者別名
- 対象利用者
- 一般
- 一般注記
- application/pdfBackground: Nasopharyngeal carcinoma (NPC) is a malignancy of the head and neck that is prevalent in Southeast Asia and southern China. Recent studies in epigenetics suggest that DNA methylation plays a pivotal role in the onset and progression of cancer. Combining the methyl- DNA binding domain capture technique and cDNA microarray analysis, we identified a unique hypermethylated gene, RERG (Ras-like estrogen-regulated growth inhibitor), that was downregulated in NPC tissues. RERG is a tumor suppressor gene that was first reported in breast cancer. However, the functions of RERG are largely unknown in other tumor types. Methods: RERG expression was assessed in human subjects (NPC primary tissues and noncancer tissues) and cell lines (NPC cell lines and an immortalized epithelial cell line NP460). Further, we investigated the methylation rate of RERG in both human subject and cell lines. 5- Aza-2’-deoxycytidine (Aza) or combined with trichostatin A (TSA) were treated to three NPC cell lines (HK1, C666-1 and HK1_EBV). In addition, the role of RERG in NPC cells and its underlying mechanisms were explored by overexpression of RERG in NPC cell lines. Results: RERG was significantly down-regulated in NPC cancer nests compared to normal nasopharyngeal epithelium cells. Furthermore, the RERG promoter was frequently methylated in NPC tissues and cell lines. The RERGmethylation rate yielded an area under the curve (AUC) of receiver operating characteristic (ROC) curve was 0.897 (95%CI: 0.818–0.976). The downregulation of RERG was restored in NPC cells treated with Aza and TSA. In addition, ectopic expression of RERG in NPC cell lines resulted in a significant suppression of cell proliferation, clonogenicity,migration and invasion. RERG-overexpressing cells showed significantly slower growth and less angiogenesis in tumor xenografts in nude mice. RERG suppressed the ERK/NF-κB signaling pathway and inhibited tumor growth and angiogenesis with downregulation of MMPs and IL8 in tumors of nude mouse xenografts. Conclusions: Our results suggest that RERG is frequently silenced by promoter CpG methylation in NPC, and acts as a functional tumor suppressor by suppressing the ERK/NF- κB signaling pathway. These findings support the potential use of RERG as a novel molecular target in NPC therapy.本文 / Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine; Department of Otorhinolaryngology - Head and Neck Surgery, Mie University Graduate School of Medicine; Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Guangxi Medical University47p
- DOI
- info:doi/10.1186/s13046-017-0554-9
- 国立国会図書館永続的識別子
- info:ndljp/pid/11008904
- コレクション(共通)
- コレクション(障害者向け資料:レベル1)
- コレクション(個別)
- 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文
- 収集根拠
- 博士論文(自動収集)
- 受理日(W3CDTF)
- 2018-01-02T17:18:43+09:00
- 作成日(W3CDTF)
- 2017-12-05
- 記録形式(IMT)
- application/pdf
- オンライン閲覧公開範囲
- 国立国会図書館内限定公開
- デジタル化資料送信
- 図書館・個人送信対象外
- 遠隔複写可否(NDL)
- 可
- 連携機関・データベース
- 国立国会図書館 : 国立国会図書館デジタルコレクション