Nuclear expression of Pygo2 correlates with poorly differentiated state involving c-Myc, PCNA and Bcl9 in Myanmar hepatocellular carcinoma

• Material Type: 博士論文
• ISSN: 0044-5991
• Title: Nuclear expression of Pygo2 correlates with poorly differentiated state involving c-Myc, PCNA and Bcl9 in Myanmar hepatocellular carcinoma
• Volume: 54 6
• Author/Editor: HTUN, MYO WIN
• Author Heading: HTUN, MYO WIN
• Publication, Distribution, etc.: The Japan Society of Histochemistry and Cytochemistry
• Publication Date: 2022-03-18; 54 6
• Publication Date (W3CDTF): 2022-03-18
• Alternative Title: ミャンマー人低分化型肝細胞がんに於ける核内Pygo2のc-Myc, PCNA, Bcl9との相関的発現上昇
• Periodical title: Acta Histochemica et Cytochemica
• Degree grantor/type: Nagasaki University (長崎大学)
• Date Granted: 2022-03-18
• Date Granted (W3CDTF): 2022-03-18
• Dissertation Number: 甲医歯薬第1417号
• Degree Type: 博士(医学)
• Conferring No. (Dissertation): 甲医歯薬第1417号
• Text Language Code: eng
• Subject Heading: Pygo2; Bcl9; c-Myc; PCNA; Myanmar hepatocellular carcinoma
• Target Audience: 一般
• Note (General): In Myanmar, hepatocellular carcinoma (HCC) is commonly seen in young adult and associated with poor prognosis, while the molecular mechanisms that characterize HCC in Myanmar are unknown. As co-activation of Wnt/β-catenin signaling and c-Myc (Myc) are reported to associate with malignancy of HCC, we immunohistochemically investigated the expression of Pygo2 and Bcl9, the co-activators of the Wnt/β-catenin signaling, Myc and PCNA in 60 cases of Myanmar HCC. Pygo2 expression was confirmed by in situ hybridization. The signal intensity was measured by image analyzer and then statistically analyzed. As a result, the expression of Pygo2 was significantly higher in HCC compared to normal liver tissue and the nuclear signal was the most intense in poorly differentiated HCC. Cytoplasmic Bcl9 was expressed in the normal liver tissue but decreased in HCC with the progression of histopathological grade. Myc was significantly higher in poorly differentiated HCC, whereas PCNA labeling index increased with the progression of histopathological grade. Nuclear Pygo2 showed strong correlation with nuclear Myc (P < 0.01) and PCNA (P < 0.001), and inversely correlated with cytoplasmic Bcl9 (P < 0.01). Our results suggested Wnt/β-catenin and Myc signaling is commonly activated in Myanmar HCC and that the correlative upregulation of nuclear Pygo2 and Myc characterizes the malignant features of HCC in Myanmar.; 長崎大学学位論文 学位記番号:博(医歯薬)甲第1417号 学位授与年月日:令和4年3月18日; Author: Myo Win Htun, Yasuaki Shibata, Kyaw Soe, Takehiko Koji; Citation: Acta Histochemica et Cytochemica, 54(6), pp. 195-206; 2021; identifier:Nagasaki University (長崎大学), 博士(医学) (2022-03-18)
• DOI: info:doi/10.1267/ahc.21-00090; https://doi.org/info:doi/10.1267/ahc.21-00090
• Persistent ID (NDL): info:ndljp/pid/12296388; https://dl.ndl.go.jp/pid/12296388
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 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; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2022-06-05T18:01:14+09:00
• Date Created (W3CDTF): 2022-05-30
• Format (IMT): PDF
• Access Restrictions: 国立国会図書館内限定公開
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• Related Material (URI): http://hdl.handle.net/10069/00041420
• Periodical Title (URI): http://hdl.handle.net/10069/00041571
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp