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Suzuki KGN, Komura N, Ando H. Recently developed glycosphingolipid probes and their dynamic behavior in cell plasma membranes as revealed by single-molecule imaging. Glycoconj J 2023; 40:305-314. [PMID: 37133616 DOI: 10.1007/s10719-023-10116-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2023] [Indexed: 05/04/2023]
Abstract
Glycosphingolipids, including gangliosides, are representative lipid raft markers that perform a variety of physiological roles in cell membranes. However, studies aimed at revealing their dynamic behavior in living cells are rare, mostly due to a lack of suitable fluorescent probes. Recently, the ganglio-series, lacto-series, and globo-series glycosphingolipid probes, which mimic the behavior of the parental molecules in terms of partitioning to the raft fraction, were developed by conjugating hydrophilic dyes to the terminal glycans of glycosphingolipids using state-of-art entirely chemical-based synthetic techniques. High-speed, single-molecule observation of these fluorescent probes revealed that gangliosides were scarcely trapped in small domains (100 nm in diameter) for more than 5 ms in steady-state cells, suggesting that rafts including gangliosides were always moving and very small. Furthermore, dual-color, single-molecule observations clearly showed that homodimers and clusters of GPI-anchored proteins were stabilized by transiently recruiting sphingolipids, including gangliosides, to form homodimer rafts and the cluster rafts, respectively. In this review, we briefly summarize recent studies, the development of a variety of glycosphingolipid probes as well as the identification of the raft structures including gangliosides in living cells by single-molecule imaging.
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Affiliation(s)
- Kenichi G N Suzuki
- Institute for Glyco-core Research (iGCORE), Gifu University, 501-1193, Gifu, Japan.
| | - Naoko Komura
- Institute for Glyco-core Research (iGCORE), Gifu University, 501-1193, Gifu, Japan.
| | - Hiromune Ando
- Institute for Glyco-core Research (iGCORE), Gifu University, 501-1193, Gifu, Japan.
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2
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Yamaguchi E, Komura N, Tanaka HN, Imamura A, Ishida H, Groux-Degroote S, Mühlenhoff M, Suzuki KGN, Ando H. Fluorescent GD2 analog for single-molecule imaging. Glycoconj J 2023; 40:247-257. [PMID: 36701103 DOI: 10.1007/s10719-023-10102-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/06/2023] [Accepted: 01/13/2023] [Indexed: 01/27/2023]
Abstract
Ganglioside GD2 is associated with the proliferation and migration of breast cancer cells. However, the precise role of GD2 is unclear because its tendency to form dynamic and transient domains in cell plasma membranes (PMs), called lipid rafts, makes it difficult to observe. Previously, we developed fluorescent analogs of gangliosides (e.g., GM3 and GM1), which enabled the observation of lipid raft formation for the first time using single-molecule imaging. In this report, we describe the first chemical synthesis of a fluorescent ganglioside, GD2. A biophysical analysis of the synthesized analog revealed its raft-philic character, suggesting its potential to aid single-molecule imaging-based investigations into raft-associated interactions.
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Affiliation(s)
- Eriko Yamaguchi
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan
| | - Naoko Komura
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan.
| | - Hide-Nori Tanaka
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan
| | - Akihiro Imamura
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan
- Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan
| | - Hideharu Ishida
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan
- Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan
| | - Sophie Groux-Degroote
- UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, CNRS, Université de Lille, F-59000, Lille, France
| | - Martina Mühlenhoff
- Institute of Clinical Biochemistry, Hannover Medical School, 30623, Hannover, Germany
| | - Kenichi G N Suzuki
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan.
| | - Hiromune Ando
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, 501-1193, Gifu, Japan.
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Suganuma Y, Imamura A, Ando H, Kiso M, Takematsu H, Tsubata T, Ishida H. Improved synthesis of CD22-binding sialosides and its application for further development of potent CD22 inhibitors. Glycoconj J 2023; 40:225-246. [PMID: 36708410 DOI: 10.1007/s10719-023-10098-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 11/28/2022] [Accepted: 01/02/2023] [Indexed: 01/29/2023]
Abstract
CD22, one of the sialic acid-binding immunoglobulin-like lectins (Siglecs), regulates B lymphocyte signaling via its interaction with glycan ligands bearing the sequence Neu5Ac/Gcα(2→6)Gal. We have developed the synthetic sialoside GSC-718 as a ligand mimic for CD22 and identified it as a potent CD22 inhibitor. Although the synthesis of CD22-binding sialosides including GSC-718 has been reported by our group, the synthetic route was unfortunately not suitable for large-scale synthesis. In this study, we developed an improved scalable synthetic procedure for sialosides which utilized 1,5-lactam formation as a key step. The improved procedure yielded sialosides incorporating a series of aglycones at the C2 position. Several derivatives with substituted benzyl residues as aglycones were found to bind to mouse CD22 with affinity comparable to that of GSC-718. The new procedure developed in this study affords sialosides in sufficient quantities for cell-based assays, and will facilitate the search for promising CD22 inhibitors that have therapeutic potential.
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Affiliation(s)
- Yuki Suganuma
- Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Akihiro Imamura
- Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
| | - Hiromune Ando
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Makoto Kiso
- Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiromu Takematsu
- Faculty of Medical Technology, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Takeshi Tsubata
- Department of Immunology, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, 113-8510, Tokyo, Japan
| | - Hideharu Ishida
- Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
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Refinement of Singer-Nicolson fluid-mosaic model by microscopy imaging: Lipid rafts and actin-induced membrane compartmentalization. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2023; 1865:184093. [PMID: 36423676 DOI: 10.1016/j.bbamem.2022.184093] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/22/2022]
Abstract
This year celebrates the 50th anniversary of the Singer-Nicolson fluid mosaic model for biological membranes. The next level of sophistication we have achieved for understanding plasma membrane (PM) structures, dynamics, and functions during these 50 years includes the PM interactions with cortical actin filaments and the partial demixing of membrane constituent molecules in the PM, particularly raft domains. Here, first, we summarize our current knowledge of these two structures and emphasize that they are interrelated. Second, we review the structure, molecular dynamics, and function of raft domains, with main focuses on raftophilic glycosylphosphatidylinositol-anchored proteins (GPI-APs) and their signal transduction mechanisms. We pay special attention to the results obtained by single-molecule imaging techniques and other advanced microscopy methods. We also clarify the limitations of present optical microscopy methods for visualizing raft domains, but emphasize that single-molecule imaging techniques can "detect" raft domains associated with molecules of interest in the PM.
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Single-Molecule Imaging of Ganglioside Probes in Living Cell Plasma Membranes. Methods Mol Biol 2023; 2613:215-227. [PMID: 36587082 DOI: 10.1007/978-1-0716-2910-9_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Gangliosides play a variety of physiological roles and are one of the most important lipid raft constituents. However, their dynamic behaviors have scarcely been investigated in living cells because of the lack of fluorescent probes that behave like their parental molecules. Recently, fluorescent ganglioside probes that mimic native ganglioside behaviors have been developed. In this chapter, I discuss the recent advances in research related to the lateral localization and dynamic behaviors of gangliosides in the plasma membranes of living cells.
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Araki E, Hane M, Hatanaka R, Kimura R, Tsuda K, Konishi M, Komura N, Ando H, Kitajima K, Sato C. Analysis of biochemical features of ST8 α-N-acetyl-neuraminide α2,8-sialyltransferase (St8sia) 5 isoforms. Glycoconj J 2022; 39:291-302. [PMID: 34982351 DOI: 10.1007/s10719-021-10034-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/24/2021] [Accepted: 12/08/2021] [Indexed: 12/11/2022]
Abstract
Gangliosides are important components of the membrane and are involved in many biological activities. St8sia5 is an α2,8-sialyltransferase involved in ganglioside synthesis, and has three isoforms. In this study, we analyzed the features of three isoforms, St8sia5-S, -M, and -L that had not been analyzed, and found that only St8sia5-L was localized in the Golgi, while the majority of St8sia5-M and -S were localized in the ER. The localization of Golgi of St8sia5 depended on the stem region. In addition, the incorporation of exogenous GD3 was upregulated only in St8sia5-L expressing cells. Taken together, the localization of St8sia5 is important for the activity of the enzyme.
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Affiliation(s)
- Erino Araki
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Masaya Hane
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Rina Hatanaka
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Ryota Kimura
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Kana Tsuda
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Miku Konishi
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Naoko Komura
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiromune Ando
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Ken Kitajima
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
- Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Chihiro Sato
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
- Bioscience and Biotechnology Center, Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
- Glyco-BioMedical Research Center (iGMED), Institute for Glyco-core Research (iGCORE), Nagoya University, Chikusa, Nagoya, 464-8601, Japan.
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Takahashi M, Komura N, Yoshida Y, Yamaguchi E, Hasegawa A, Tanaka HN, Imamura A, Ishida H, Suzuki KGN, Ando H. Development of lacto-series ganglioside fluorescent probe using late-stage sialylation and behavior analysis with single-molecule imaging. RSC Chem Biol 2022; 3:868-885. [PMID: 35866169 PMCID: PMC9257605 DOI: 10.1039/d2cb00083k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 05/28/2022] [Indexed: 11/21/2022] Open
Abstract
Gangliosides are a family of sialic-acid-containing glycosphingolipids that form dynamic domains (lipid rafts) with proteins in cell plasma membranes (PMs), and are involved in various biological processes. The dynamic behavior...
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Affiliation(s)
- Maina Takahashi
- The United Graduate School of Agricultural Science, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Naoko Komura
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Yukako Yoshida
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Eriko Yamaguchi
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Ami Hasegawa
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Hide-Nori Tanaka
- The United Graduate School of Agricultural Science, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Akihiro Imamura
- The United Graduate School of Agricultural Science, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Hideharu Ishida
- The United Graduate School of Agricultural Science, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Center for Highly Advanced Integration of Nano and Life Sciences (G-CHAIN), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Kenichi G N Suzuki
- The United Graduate School of Agricultural Science, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Hiromune Ando
- The United Graduate School of Agricultural Science, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Department of Applied Bioorganic Chemistry, Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
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8
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Ando H, Komura N, Tanaka HN, Imamura A, Ishida H. Chemical synthesis of sialoglyco-architectures. Adv Carbohydr Chem Biochem 2022; 81:31-56. [DOI: 10.1016/bs.accb.2022.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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9
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Vibhute AM, Komura N, Tanaka HN, Imamura A, Ando H. Advanced Chemical Methods for Stereoselective Sialylation and Their Applications in Sialoglycan Syntheses. CHEM REC 2021; 21:3194-3223. [PMID: 34028159 DOI: 10.1002/tcr.202100080] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/26/2021] [Accepted: 05/03/2021] [Indexed: 12/18/2022]
Abstract
Sialic acid is an important component of cell surface glycans, which are responsible for many vital body functions and should therefore be thoroughly studied to understand their biological roles and association with disorders. The difficulty of isolating large quantities of homogenous-state sialoglycans from natural sources has inspired the development of the corresponding chemical synthesis methods affording acceptable purities, yields, and amounts. However, the related syntheses are challenging because of the difficulties in α-glycosylation of sialic acid, which arises from its certain structural features such as the absence of a stereodirecting group at the C3 position and presence of carboxyl group at the anomeric position. Moreover, the structural complexities of sialoglycans with diverse numbers and locations of sialic acid on the glycan chains pose additional barriers. Thus, efficient α-stereoselective routes to sialosides remain highly sought after, although various types of sialyl donors/acceptors have been developed for the straightforward synthesis of α-sialosides. Herein, we review the latest progress in the α-stereoselective synthesis of sialosides and their applications in the preparation of gangliosides and other sialoglycans.
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Affiliation(s)
- Amol M Vibhute
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu-shi, Gifu, 501-1193, Japan
| | - Naoko Komura
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu-shi, Gifu, 501-1193, Japan
| | - Hide-Nori Tanaka
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu-shi, Gifu, 501-1193, Japan
| | - Akihiro Imamura
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu-shi, Gifu, 501-1193, Japan.,Department of Applied Bioorganic Chemistry, Gifu University, 1-1 Yanagido, Gifu-shi, Gifu, 501-1193, Japan
| | - Hiromune Ando
- Institute for Glyco-core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu-shi, Gifu, 501-1193, Japan
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