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培養肺胞上皮細胞RLE-6TNにおけるインスリン取り込み機構(発表論文抄録(2011))
https://fukuyama-u.repo.nii.ac.jp/records/8825
https://fukuyama-u.repo.nii.ac.jp/records/88257ad3ed29-d307-4855-96d4-6d71366085f5
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2017-12-25 | |||||
タイトル | ||||||
タイトル | 培養肺胞上皮細胞RLE-6TNにおけるインスリン取り込み機構(発表論文抄録(2011)) | |||||
タイトル | ||||||
タイトル | Mechanism underlying insulin uptake in alveolar epithelial cell line RLE-6TN. | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Animals | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Cell Line | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Cell Polarity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Endocytosis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Epithelial Cells | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Fluorescein-5-isothiocyanate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Gene Knockdown Techniques | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Insulin | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Intracellular Space | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Protein Transport | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Proteolysis | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Pulmonary Alveoli | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | RNA, Small Interfering | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Rats | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Receptor, Insulin | |||||
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 | departmental bulletin paper | |||||
著者 |
Oda, Keisuke
× Oda, Keisuke× Yumoto, Ryoko× Nagai, Junya× Katayama, Hirokazu× Takano, Mikihisa |
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著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 45890 | |||||
識別子Scheme | CiNii ID | |||||
識別子URI | http://ci.nii.ac.jp/nrid/9000283797503 | |||||
識別子 | 9000283797503 | |||||
姓名 | 小田, 啓祐 | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 45891 | |||||
識別子Scheme | CiNii ID | |||||
識別子URI | http://ci.nii.ac.jp/nrid/9000002748331 | |||||
識別子 | 9000002748331 | |||||
姓名 | 湯元, 良子 | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 45892 | |||||
識別子Scheme | CiNii ID | |||||
識別子URI | http://ci.nii.ac.jp/nrid/9000003074469 | |||||
識別子 | 9000003074469 | |||||
姓名 | 永井, 純也 | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 45893 | |||||
識別子Scheme | CiNii ID | |||||
識別子URI | http://ci.nii.ac.jp/nrid/9000002867742 | |||||
識別子 | 9000002867742 | |||||
姓名 | 片山, 博和 | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 45894 | |||||
識別子Scheme | CiNii ID | |||||
識別子URI | http://ci.nii.ac.jp/nrid/9000002748332 | |||||
識別子 | 9000002748332 | |||||
姓名 | 高野, 幹久 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | For the development of efficient pulmonary delivery systems for protein and peptide drugs, it is important to understand their transport mechanisms in alveolar epithelial cells. In this study, the uptake mechanism for FITC-insulin in cultured alveolar epithelial cell line RLE-6TN was elucidated. FITC-insulin uptake by RLE-6TN cells was time-dependent, temperature-sensitive, and concentration-dependent. The uptake was inhibited by metabolic inhibitors, cytochalasin D, clathrin-mediated endocytosis inhibitors, and dynasore, an inhibitor of dynamin GTPase. On the other hand, no inhibitory effect was observed with caveolae-mediated endocytosis inhibitors and a macropinocytosis inhibitor. Intracellular FITC-insulin was found to be partly transported to the basal side of the epithelial cell monolayers. In addition, colocalization of FITC-insulin and LysoTracker Red was observed on confocal laser scanning microscopy, indicating that FITC-insulin was partly targeted to lysosomes. In accordance with these findings, SDS-PAGE/fluoroimage analysis showed that intact FITC-insulin in the cells was eliminated with time. The possible receptor involved in FITC-insulin uptake by RLE-6TN cells was examined by using siRNA. Transfection of the cells with megalin or insulin receptor siRNA successfully reduced the corresponding mRNA expression. FITC-insulin uptake decreased on the transfection with insulin receptor siRNA, but not that with megalin siRNA. These results suggest that insulin is taken up through endocytosis in RLE-6TN cells, and after the endocytosis, the intracellular insulin is partly degraded in lysosomes and partly transported to the basal side. Insulin receptor, but not megalin, may be involved at least partly in insulin endocytosis in RLE-6TN cells. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | For the development of efficient pulmonary delivery systems for protein and peptide drugs, it is important to understand their transport mechanisms in alveolar epithelial cells. In this study, the uptake mechanism for FITC-insulin in cultured alveolar epithelial cell line RLE-6TN was elucidated. FITC-insulin uptake by RLE-6TN cells was time-dependent, temperature-sensitive, and concentration-dependent. The uptake was inhibited by metabolic inhibitors, cytochalasin D, clathrin-mediated endocytosis inhibitors, and dynasore, an inhibitor of dynamin GTPase. On the other hand, no inhibitory effect was observed with caveolae-mediated endocytosis inhibitors and a macropinocytosis inhibitor. Intracellular FITC-insulin was found to be partly transported to the basal side of the epithelial cell monolayers. In addition, colocalization of FITC-insulin and LysoTracker Red was observed on confocal laser scanning microscopy, indicating that FITC-insulin was partly targeted to lysosomes. In accordance with these findings, SDS-PAGE/fluoroimage analysis showed that intact FITC-insulin in the cells was eliminated with time. The possible receptor involved in FITC-insulin uptake by RLE-6TN cells was examined by using siRNA. Transfection of the cells with megalin or insulin receptor siRNA successfully reduced the corresponding mRNA expression. FITC-insulin uptake decreased on the transfection with insulin receptor siRNA, but not that with megalin siRNA. These results suggest that insulin is taken up through endocytosis in RLE-6TN cells, and after the endocytosis, the intracellular insulin is partly degraded in lysosomes and partly transported to the basal side. Insulin receptor, but not megalin, may be involved at least partly in insulin endocytosis in RLE-6TN cells. | |||||
書誌情報 |
福山大学薬学部研究年報 en : Annual report of the Faculty of Pharmacy & Pharmaceutical Sciences, Fukuyama University 号 30, p. 23-24, 発行日 2012-12-25 |
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出版者 | ||||||
出版者 | 福山大学薬学部 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0288-724X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10064550 |