Target Identification and Mode of Action Studies of an Antitumor Compound Aplyronine A by Using Photoaffinity Derivatives
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- Kita Masaki
- Faculty of Pure and Applied Sciences, University of Tsukuba
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- Kigoshi Hideo
- Faculty of Pure and Applied Sciences, University of Tsukuba
Bibliographic Information
- Other Title
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- 光親和性プローブを用いた抗腫瘍性天然物アプリロニンAの標的分子と作用機序の研究
- ヒカリ シンワセイ プローブ オ モチイタ コウシュヨウセイ テンネンブツ アプリロニン A ノ ヒョウテキ ブンシ ト サヨウ キジョ ノ ケンキュウ
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Abstract
Actin is an essential cytoskeletal protein for the regulation of various cellular functions. A number of actin-stabilizing and depolymerizing agents have been discovered in marine invertebrates, and they show potent cytotoxicity. Among them, a polyketide macrolide aplyronine A has antitumor effects against xenograft in mice. However, the potent cytotoxicity and apoptogenic effect of aplyronine A was not entirely accounted for by its actin filament-severing properties, and its molecular targets and mechanisms of action remained unclear. We developed aplyronine A acetylene or biotin derivatives that bear an aryldiazirine group at the C34 terminus, which formed a covalent bond with actin. By using these chemical probes, we have showed that aplyronine A synergistically binds to tubulin in association with actin, and prevents spindle formation and mitosis in tumor cells. Our findings of aplyronine A will provide further insights into the molecular mechanisms of structurally diverse natural products that regulate cytoskeletal dynamics.
Journal
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- Journal of Synthetic Organic Chemistry, Japan
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Journal of Synthetic Organic Chemistry, Japan 73 (2), 151-160, 2015
The Society of Synthetic Organic Chemistry, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001205341346944
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- NII Article ID
- 130005129432
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- NII Book ID
- AN0024521X
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- ISSN
- 18836526
- 00379980
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- NDL BIB ID
- 026084837
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed