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IgM H- and L-chains accumulated excessively in HDAC2(-/-) DT40 mutants are dramatically reduced in distinct ways in individual mutant clones through various generations during continuous cultivation
http://hdl.handle.net/10458/6375
http://hdl.handle.net/10458/6375322cc063-afb1-40e4-be8e-2a00427f466c
| 名前 / ファイル | ライセンス | アクション |
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| Item type | その他 / Others(1) | |||||
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| 公開日 | 2020-06-21 | |||||
| タイトル | ||||||
| タイトル | IgM H- and L-chains accumulated excessively in HDAC2(-/-) DT40 mutants are dramatically reduced in distinct ways in individual mutant clones through various generations during continuous cultivation | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | gene targeting techniques, HDAC2-deficient DT40 mutants, continuous cultivation, decreases in IgM H/L chain protein/mRNA levels, changes in mRNA levels of transcription factors in individual mutant clones | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_1843 | |||||
| 資源タイプ | other | |||||
| 著者 |
中山, 雅美
× 中山, 雅美× 中山, 建男 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We recently generated histone deacetylase2 （HDAC2）-deficient DT40 mutants HDAC2（-/-） and analyzed their characteristics at various intervals during cultivation. In this article we reviewed our studies on several characteristics of HDAC2（-/-） mutants. In six independent clones （cl.2-1 to cl.2-6） of HDAC2（-/-） mutants, proteins and mRNAs of IgM H- and L-chains were dramatically increased at the early stage of cultivation, and thereafter decreased in almost similar changing pattern and at the later stage reached comparable levels as in DT40 cells. By contrast, mRNAs of various transcription factors and chromatin-modifying enzymes showed distinct changing patterns in these six HDAC2（-/-） clones during cultivation. In clone cl.2-1, mRNAs of Pax5, Aiolos and EBF1 were almost completely decreased at the early stage and remained unchanged during cultivation, but that of OBF1 was dramatically decreased until the later stage. In clones cl.2-2, cl.2-3, cl.2-4 and cl.2-5, mRNAs of Pax5, Aiolos and EBF1 were almost completely decreased at the early stage, and thereafter mRNAs of Pax5 and Aiolos were increased until the later stage but that of EBF1 remained unchanged during cultivation. In clone cl.2-6, mRNAs of Pax5, Aiolos and EBF1 were almost completely decreased at the early stage and thereafter dramatically increased during cultivation. These findings suggested that three distinct ways of gene expressions of IgM H- and L-chains exist at the later stage in six individual HDAC2（-/-） clones; i.e., clone cl.2-1 seems to be the OBF1-dependent type, clones cl.2-2, cl.2-3, cl.2-4 and cl.2-5 seem to be the Pax5- and Aiolos-dependent type, and clone cl.2-6 seems to be the Pax5-, Aiolos- and EBF1-dependent type. These results revealed that individual clones of HDAC2（-/-） mutants have the ability to gain new cell function to exclude artificially accumulated IgM H- and L-chains depending on alterations in gene expressions of Pax5, Aiolos, EBF1, OBF1, etc. through various generations during continuous cultivation. | |||||
| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 以下に掲載: Current Topics in Biochemical Research .2017,Volume 18.pages 11-25 | |||||
| 言語 | ja | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
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中山, 雅美, 中山, 建男, n.d., IgM H- and L-chains accumulated excessively in HDAC2(-/-) DT40 mutants are dramatically reduced in distinct ways in individual mutant clones through various generations during continuous cultivation.
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