| 著者：別形式 | Kamiuchi, Shinya / Fukaya, Mutsumi / Usui, Tatsuhiro / Iwata, Naohiro / Okazaki, Mari / Matsuzaki, Hirokazu / Sunaga, Katsuyoshi / Hibino, Yasuhide |
| 著者：所属(別形式） | Josai University, Faculty of Pharmaceutical Sciences, Department of Clinical Dietetics & Human Nutrition, Laboratory of Immunobiochemistry / Josai University, Faculty of Pharmaceutical Sciences, Department of Clinical Dietetics & Human Nutrition, Laboratory of Immunobiochemistry / Josai University, Faculty of Pharmaceutical Sciences, Department of Clinical Dietetics & Human Nutrition, Laboratory of Immunobiochemistry / Josai University, Faculty of Pharmaceutical Sciences, Department of Clinical Dietetics & Human Nutrition, Laboratory of Immunobiochemistry / Josai University, Faculty of Pharmaceutical Sciences, School of Pharmaceutical Sciences, Laboratory of Pharmacology / Josai University, Faculty of Pharmaceutical Sciences, School of Pharmaceutical Sciences, Laboratory of Pharmacology / Josai University, Faculty of Pharmaceutical Sciences, Department of Clinical Dietetics & Human Nutrition, Laboratory of Immunobiochemistry / Josai University, Faculty of Pharmaceutical Sciences, Department of Clinical Dietetics & Human Nutrition, Laboratory of Immunobiochemistry |
| 抄録 | We examined the transcriptional augmentation of matrin 3, a nuclear matrix protein, of the SV40 promotermediated luciferase gene (pGL3) following transient transfection of recombinant plasmids into cells. It has been reported that the interaction of the Xmn I fragment, a highly repetitive DNA component as one of a typical matrix- or scaffold-attachment regions (MAR/SAR) tethered upstream from the SV40 promoter (pGL3-Xmn I) with matrin 3 appeared to be required for augmentation of luciferase gene transcription. In this study, we investigated the levels of induction in cells overexpressing the wild type and several deletion mutants of matrin 3. It appeared that pGL3-Xmn I augmented luciferase production to 4-times the control level in Ac2F cells, but 23-fold in cells overexpressing matrin 3. Electrophoretic mobility shift assay showed that the Xmn I fragment augmented luciferase gene transcription through interaction with matrin 3. Furthermore, our findings suggest that all of the functional domains tested in matrin 3 were necessary for transcriptional augmentation. We aim not only to describe the transcriptional augmentation of matrin 3 with MAR/SAR, but also to strengthen interest in their use to mediate the expression of therapeutic transgenes. |
