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Dual-FRET imaging of IP3 and Ca2+ revealed Ca2+-induced IP3 production maintains long lasting Ca2+ oscillations in fertilized mouse eggs
https://oist.repo.nii.ac.jp/records/995
https://oist.repo.nii.ac.jp/records/99523390d9d-d68a-4ab4-9b4f-bf4bdf907c31
名前 / ファイル | ライセンス | アクション |
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Matsu-Ura-2019-Dual-FRET imaging of IP3 and Ca (4.0 MB)
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Creative Commons
Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/) |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-07-08 | |||||
タイトル | ||||||
タイトル | Dual-FRET imaging of IP3 and Ca2+ revealed Ca2+-induced IP3 production maintains long lasting Ca2+ oscillations in fertilized mouse eggs | |||||
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 | |||||
著者(英) |
Matsu-ura, Toru
× Matsu-ura, Toru× Shirakawa, Hideki× Suzuki, Kenichi G. N.× Miyamoto, Akitoshi× Sugiura, Kotomi× Michikawa, Takayuki× Kusumi, Akihiro× Mikoshiba, Katsuhiko |
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書誌情報 |
en : Scientific Reports 巻 9, 号 1, p. 4829, 発行日 2019-03-18 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | In most species, fertilization induces Ca(2+) transients in the egg. In mammals, the Ca(2+) rises are triggered by phospholipase Czeta (PLCzeta) released from the sperm; IP3 generated by PLCzeta induces Ca(2+) release from the intracellular Ca(2+) store through IP3 receptor, termed IP3-induced Ca(2+) release. Here, we developed new fluorescent IP3 sensors (IRIS-2s) with the wider dynamic range and higher sensitivity (Kd = 0.047-1.7 muM) than that we developed previously. IRIS-2s employed green fluorescent protein and Halo-protein conjugated with the tetramethylrhodamine ligand as fluorescence resonance energy transfer (FRET) donor and acceptor, respectively. For simultaneous imaging of Ca(2+) and IP3, using IRIS-2s as the IP3 sensor, we developed a new single fluorophore Ca(2+) sensor protein, DYC3.60. With IRIS-2s and DYC3.60, we found that, right after fertilization, IP3 concentration ([IP3]) starts to increase before the onset of the first Ca(2+) wave. [IP3] stayed at the elevated level with small peaks followed after Ca(2+) spikes through Ca(2+) oscillations. We detected delays in the peak of [IP3] compared to the peak of each Ca(2+) spike, suggesting that Ca(2+)-induced regenerative IP3 production through PLC produces small [IP3] rises to maintain [IP3] over the basal level, which results in long lasting Ca(2+) oscillations in fertilized eggs. | |||||
出版者 | ||||||
出版者 | Nature Research | |||||
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収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2045-2322 | |||||
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関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/30886280 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1038/s41598-019-40931-w | |||||
権利 | ||||||
権利情報 | © 2019 The Author(s). | |||||
情報源 | ||||||
関連名称 | https://creativecommons.org/licenses/by/4.0/ | |||||
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識別子タイプ | URI | |||||
関連識別子 | https://www.nature.com/articles/s41598-019-40931-w | |||||
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出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |