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Cytosolic acetyl-CoA synthetase affected tumor cell survival under hypoxia: the possible function in tumor acetyl-CoA/acetate metabolism
https://repo.qst.go.jp/records/46122
https://repo.qst.go.jp/records/4612213c6e3a9-2e50-4662-9584-2188f30287d5
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-07-06 | |||||
タイトル | ||||||
タイトル | Cytosolic acetyl-CoA synthetase affected tumor cell survival under hypoxia: the possible function in tumor acetyl-CoA/acetate metabolism | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Yoshii, Yukie
× Yoshii, Yukie× Furukawa, Takako× Kiyono, Yashushi× Yonekura, Yoshiharu× Fujibayashi, Yasuhisa× et.al× 吉井 幸恵× 古川 高子× 米倉 義晴× 藤林 康久 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Understanding tumor-specific metabolism under hypoxia is important to find novel targets for antitumor drug design. Here we found that tumor cells expressed higher levels of cytosolic acetyl-CoA synthetase (ACSS2) under hypoxia than normoxia. Knockdown of ACSS2 by RNA interference (RNAi) in tumor cells enhanced tumor cell death under long-term hypoxia in vitro. Our data also demonstrated that the ACSS2 suppression slowed tumor growth in vivo. These findings showed that ACSS2 plays a significant role in tumor cell survival under hypoxia and that ACSS2 would be a potential target for tumor treatment. Furthermore, we found that tumor cells excreted acetate and the quantity increased under hypoxia: the pattern of acetate excretion followed the expression pattern of ACSS2. Additionally, the ACSS2 knockdown led to a corresponding reduction in the acetate excretion in tumor cells. These results mean that ACSS2 can conduct the reverse reaction from acetyl-CoA to acetate in tumor cells, which indicates that ACSS2 is a bi-directional enzyme in tumor cells and that ACSS2 might play a buffering role in tumor acetyl-CoA/acetate metabolism. | |||||
書誌情報 |
Cancer Science 巻 100, 号 5, p. 821-827, 発行日 2009-02 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1347-9032 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1111/j.1349-7006.2009.01099.x |