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Kurebayashi Y, Takahashi T, Miura T, Otsubo T, Minami A, Fujita Y, Sakakibara K, Tanabe M, Iuchi A, Ota R, Ikeda K, Suzuki T. Fluorogenic Probes for Accurate in Situ Imaging of Viral and Mammalian Sialidases. ACS Chem Biol 2019; 14:1195-1204. [PMID: 31120724 DOI: 10.1021/acschembio.9b00103] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sialidases are widely distributed in nature and are involved in many physiological and pathological processes. Sialidases are expressed and work in various tissues and organelles. Clarification of the localization of sialidases is very helpful as a way to understand their functions. We previously developed a novel fluorogenic probe for sialidases, BTP3-Neu5Ac, that visualized the localization of sialidase activity in live cells and tissues by precipitating the hydrophobic fluorescent compound; however, for the purpose of accurate fluorescence imaging of sialidase-expressing cells or the distribution of intracellular sialidase activity, BTP3-Neu5Ac was inadequate in imaging performance. We report the design and development of a sialidase imaging probe that improves the sensitivity and accuracy of in situ fluorescence imaging performance as well as increases the hydrophobicity by attaching linear unsaturated hydrocarbon chains into the hydrophobic fluorescent compound of BTP3-Neu5Ac. The newly developed probe showed low diffusivity and high brightness for fluorescence imaging, and it enabled sensitive and highly accurate imaging of viral sialidase in virus-infected cells and sialidase-expressing cells as well as mammalian sialidase in the rat brain. The probe also enabled the fluorescence imaging of intracellular viral sialidase in live-virus-infected cells. The newly developed probe is expected to be a useful tool that will contribute to the progress of research on sialidases in various fields such as research on viruses and brains.
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Affiliation(s)
- Yuuki Kurebayashi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Tadanobu Takahashi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Tomomi Miura
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Tadamune Otsubo
- Department of Organic Chemistry, School of Pharmaceutical Sciences, Hiroshima International University, Kure-shi, Hiroshima 737-0112, Japan
| | - Akira Minami
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Yuka Fujita
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Keiko Sakakibara
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Momoko Tanabe
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Ayano Iuchi
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Ryohei Ota
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
| | - Kiyoshi Ikeda
- Department of Organic Chemistry, School of Pharmaceutical Sciences, Hiroshima International University, Kure-shi, Hiroshima 737-0112, Japan
| | - Takashi Suzuki
- Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka-shi, Shizuoka 422-8526, Japan
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Vus K, Tarabara U, Kurutos A, Ryzhova O, Gorbenko G, Trusova V, Gadjev N, Deligeorgiev T. Aggregation behavior of novel heptamethine cyanine dyes upon their binding to native and fibrillar lysozyme. MOLECULAR BIOSYSTEMS 2017; 13:970-980. [DOI: 10.1039/c7mb00185a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Novel cyanine dyes can be used for amyloid fibril detection.
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Affiliation(s)
- Kateryna Vus
- Department of Nuclear and Medical Physics
- V.N. Karazin Kharkiv National University
- Kharkiv
- Ukraine
| | - Ulyana Tarabara
- Department of Nuclear and Medical Physics
- V.N. Karazin Kharkiv National University
- Kharkiv
- Ukraine
| | - Atanas Kurutos
- Faculty of Chemistry and Pharmacy
- Sofia University
- Sofia
- Bulgaria
| | - Olga Ryzhova
- Department of Nuclear and Medical Physics
- V.N. Karazin Kharkiv National University
- Kharkiv
- Ukraine
| | - Galyna Gorbenko
- Department of Nuclear and Medical Physics
- V.N. Karazin Kharkiv National University
- Kharkiv
- Ukraine
| | - Valeriya Trusova
- Department of Nuclear and Medical Physics
- V.N. Karazin Kharkiv National University
- Kharkiv
- Ukraine
| | - Nikolai Gadjev
- Faculty of Chemistry and Pharmacy
- Sofia University
- Sofia
- Bulgaria
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