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Progestin isoforms provide different levels of protein S expression in HepG2 cells
http://hdl.handle.net/2237/25229
http://hdl.handle.net/2237/2522977a023bb-e567-4dbc-8866-84c3856e29f3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Progestin_PS_Rv3_kozuka.pdf ファイル公開：2017/09/01 (775.3 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2016-12-16 | |||||
| タイトル | ||||||
| タイトル | Progestin isoforms provide different levels of protein S expression in HepG2 cells | |||||
| 言語 | en | |||||
| 著者 |
Kozuka, Toshihiro
× Kozuka, Toshihiro× Tamura, Shogo× Kawamura, Nami× Nakata, Yukiko× Hasebe, Ryo× Makiyama, Ayumi× Takagi, Yuki× Murata, Moe× Mizutani, Naoki× Takagi, Akira× Kojima, Tetsuhito |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Protein S | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Progestin | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Transcription elongation | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Combined oral contraceptive | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Venous thromboembolism | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Introduction: Use of combined oral contraceptives (COCs) results in acquired protein S (PS) deficiency, a well-established risk factor for venous thromboembolism (VTE). The risk of VTE due to COCs containing newer-generation progestins is double compared with COCs containing older-generation progestins, although there is little difference in estrogen contents between the generations. In contrast, progestin-only contraceptives do not confer an increased risk of VTE. In this study, we aimed to investigate how different isoforms of progestin in COCs affect the risk of VTE by measuring PS expression. Materials and methods: The effect of progestin, levonorgestrel (LNG) or drospirenone (DRSP), on PS mRNA expression in HepG2 cells was measured using reverse transcription-quantitative PCR; PS level was determined using Western blot analysis. PROS1 promoter activity, PS mRNA stability, and de novo synthesis of PS mRNA were examined in HepG2 cells after treatment with progestin. Results and conclusions: In the presence of progestins, PS mRNA and protein expressions were significantly upregulated in HepG2 cells due to the augmentation of de novo PS mRNA expression modulated by RNA polymerase II (Pol II), thereby facilitating PS transcription elongation. Moreover, the transcription elongation inhibitor blocked progestin-mediated de novo PS mRNA expression. Conversely, progestin did not affect PROS1 promoter activity and PS mRNA stability. Pol II elongation efficiency in the newer-generation progestin (DRSP) treatment was not as strong compared with older-generation progestin (LNG), suggesting the difference in VTE risk between COC generations. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1016/j.thromres.2016.07.007 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0049-3848 | |||||
| 書誌情報 |
en : Thrombosis Research 巻 145, p. 40-45, 発行日 2016-09 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
| URI | ||||||
| 識別子 | http://dx.doi.org/10.1016/j.thromres.2016.07.007 | |||||
| 識別子タイプ | DOI | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/25229 | |||||
| 識別子タイプ | HDL | |||||
