2004 Fiscal Year Final Research Report Summary
Magnesium-Calcium Multi Fluorescent Probe and Intracellular Appication
| Project/Area Number |
14350447
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
工業分析化学
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| Research Institution | Keio University |
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Principal Investigator |
SUZUKI Koji Keio University, Faculty of Science and Technology, Professor, 理工学部, 教授 (80154540)
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| Co-Investigator(Kenkyū-buntansha) |
YAMADA Koji Keio University, Faculty of Science and Technology, Instructor, 理工学部, 助手 (30348825)
SUZUKI Yoshio AIST, Research Center of Advanced Bionics, Researcher, バイオニクス研究センター, 研究員 (60321907)
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| Project Period (FY) |
2002 – 2004
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| Keywords | Calcium / Magnesium / Molecular probe / BAPTA / beta-diketone |
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| Research Abstract |
Intracellular signal transduction relies on spatial and temporal signal transmitters dynamics. To clarify the correlations, multicolor-imaging has been widely used. However, in the case of applying multiple indicators in a cell spectral overlap of the indicators, invasive effect, localization, metabolism and photobleaching of these indicators complicates the situations. We assumed that single molecular multi fluorescent probes can overcome these problems. While intracellular calcium plays a critical role as signal transmitter and magnesium acts as a cofactor in many situations, these correlations are significant. We designed and synthesized a Ca2+-Mg2+ fluorescent probe, KCM-1. KCM-1 showed a spectral blue shift with complexation to Ca2+ and a red shift to Mg2+. By using AM-ester method, KCM-1 was successfully loaded in PC12 cells and by data analyse at different excitation wavelengths, intracellular Ca2+ and Mg2+ were simultaneously imaged. The intracellular multiple analyte imaging by a single molecular multi fluorescent probe was firstly demonstrated.
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Research Products
(16 results)
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[Journal Article] Design and synthesis of Mg^<2+> selective fluoroionophores based on coumarin derivative and application for the Mg^<2+> measurement in a living cell2002
Author(s)
Yoshio Suzuki, Hirokazu Komatsu, Takafumi Ikeda, Naohiko Saito, Sawa Araki, Daniel Citterio, Hideaki Hisamoto, Yoshiichiro Kitamura, Takeshi Kubota. Jun Nakagawa, Kotaro Oka, Koji Suzuki
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Journal Title
Analytical Chemistry 74
Pages: 1423-1428
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Design and synthesis of Mg2+ selective fluoroionophores based on coumarin derivative and application for the Mg2+ measurement in a living cell2002
Author(s)
Yoshio Suzuki, Hirokazu Komatsu, Takafumi Ikeda, Naohiko Saito, Sawa Araki, Daniel Citterio, Hideaki Hisamoto, Yoshiichiro Kitamura, Takeshi Kubota, Jun Nakagawa, Kotaro Oka, Koji Suzuki
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Journal Title
Analytical Chemistry 74
Pages: 1423-1428
Description
「研究成果報告書概要(欧文)」より
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