DNA 損傷センサーATMキナーゼとChk2はC型肝炎ウイルスのRNA複製に必要である
書誌事項
- タイトル別名
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- The DNA damage sensors ataxia-telangiectasia mutated kinase and checkpoint kinase 2 are required for hepatitis C virus RNA replication
- 平成20年度岡山医学会賞(林原賞)受賞論文 DNA損傷センサーATMキナーゼとChk2はC型肝炎ウイルスのRNA複製に必要である
- ヘイセイ 20ネンド オカヤマ イガッカイショウ ハヤシバラショウ ジュショウ ロンブン DNA ソンショウ センサー ATM キナーゼ ト Chk2 ワ Cガタ カンエン ウイルス ノ RNA フクセイ ニ ヒツヨウ デ アル
- 公開日
- 2010
- 資源種別
- journal article
- DOI
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- 10.4044/joma.122.9
- 10.1128/jvi.00351-08
- 公開者
- 岡山医学会
この論文をさがす
説明
<jats:title>ABSTRACT</jats:title> <jats:p>Cellular responses to DNA damage are crucial for maintaining genome integrity, virus infection, and preventing the development of cancer. Hepatitis C virus (HCV) infection and the expression of the HCV nonstructural protein NS3 and core protein have been proposed as factors involved in the induction of double-stranded DNA breaks and enhancement of the mutation frequency of cellular genes. Since DNA damage sensors, such as the ataxia-telangiectasia mutated kinase (ATM), ATM- and Rad3-related kinase (ATR), poly(ADP-ribose) polymerase 1 (PARP-1), and checkpoint kinase 2 (Chk2), play central roles in the response to genotoxic stress, we hypothesized that these sensors might affect HCV replication. To test this hypothesis, we examined the level of HCV RNA in HuH-7-derived cells stably expressing short hairpin RNA targeted to ATM, ATR, PARP-1, or Chk2. Consequently, we found that replication of both genome-length HCV RNA (HCV-O, genotype 1b) and the subgenomic replicon RNA were notably suppressed in ATM- or Chk2-knockdown cells. In addition, the RNA replication of HCV-JFH1 (genotype 2a) and the release of core protein into the culture supernatants were suppressed in these knockdown cells after inoculation of the cell culture-generated HCV. Consistent with these observations, ATM kinase inhibitor could suppress the HCV RNA replication. Furthermore, we observed that HCV NS3-NS4A interacted with ATM and that HCV NS5B interacted with both ATM and Chk2. Taken together, these results suggest that the ATM signaling pathway is critical for HCV RNA replication and may represent a novel target for the clinical treatment of patients with chronic hepatitis C.</jats:p>
収録刊行物
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- 岡山医学会雑誌
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岡山医学会雑誌 122 (1), 9-16, 2010
岡山医学会
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詳細情報 詳細情報について
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- CRID
- 1390282679853216640
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- NII論文ID
- 130004903171
- 120002310933
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- NII書誌ID
- AN00032489
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- ISSN
- 18824528
- 10985514
- 00301558
- 0022538X
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- NDL書誌ID
- 10672619
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- PubMed
- 18667510
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- 本文言語コード
- ja
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- 資料種別
- journal article
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- データソース種別
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- JaLC
- IRDB
- NDLサーチ
- Crossref
- CiNii Articles
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- OpenAIRE

