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Expression of AP1 during cellular differentiation determines human papillomavirus E6/E7 expression in stratified epithelial cells
http://hdl.handle.net/2297/28980
http://hdl.handle.net/2297/28980a0b1a8ba-f904-422f-be9d-a8c1fc1cfb24
名前 / ファイル | ライセンス | アクション |
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ME-PR-KYO-S-401.pdf (781.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Expression of AP1 during cellular differentiation determines human papillomavirus E6/E7 expression in stratified epithelial cells | |||||
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 | |||||
著者 |
Kyo, Satoru
× Kyo, Satoru× Klumpp, David J.× Inoue, Masaki× Kanaya, Taro× Laimins, Laimonis A. |
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書誌情報 |
Journal of General Virology 巻 78, 号 2, p. 401-411, 発行日 1997-02-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0022-1317 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00698722 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1099/0022-1317-78-2-401 | |||||
出版者 | ||||||
出版者 | Society for General Microbiology | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | E6 and E7 oncoproteins of human papillomavirus (HPV) play significant roles in the pathogenesis of cervical cancer. However, the pattern of E6/E7 expression during the productive virus life cycle in differentiating epithelia of the uterine cervix remains unclear. In addition, little is known about the cellular factors regulating E6/E7 expression in differentiating epithelia. In the present study, using transient expression assays and DNA binding assays, we demonstrated that E6/E7 transcription is critically regulated by the cellular factor AP1, a Jun/Fos heterodimer complex. Immunohistochemical analyses of various uterine cervical lesions showed AP1 expression in lower cell layers of normal cervix and low-grade cervical intraepithelial neoplasia (CIN), while it was detected throughout all layers in high-grade CIN and invasive cancer. In situ RNA-RNA hybridization analyses of organotypic raft culture specimens of an HPV-31-containing cell line revealed that E6/E7 transcripts were expressed in most cell layers, with reduced expression in differentiated cells. This pattern of HPV expression correlated with the pattern of AP1 expression detected by immunohistochemicaI analyses. These findings suggest that E6/E7 expression in differentiating epithelia is dependent on AP1, which appears to be associated with proliferative activity of the cells. Since E6/E7 expression induces cell proliferation, co-expression of AP1 and E6/E7 in undifferentiated cell layers might create a positive regulatory loop, probably contributing to maintenance of initial HPV infection and subsequent activation in basal and suprabasal cell layers. | |||||
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 |