1
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Wen Y, Ding D, Luo MQ, Peng XQ, Wang EY, Wu YH, Zhou SH, Guo J. Rationally Designed Highly Potent NKT Cell Agonists with Different Cytokine Selectivity through Hydrogen-Bond Interaction. J Med Chem 2024. [PMID: 39031770 DOI: 10.1021/acs.jmedchem.4c00782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2024]
Abstract
Synthetic α-galactosylceramide (αGalCer) and its analogues as powerful agonists for natural killer T (NKT) cell manipulation have received significant attention in immunotherapy and adjuvant development. However, identifying new potent NKT cell agonists, especially those with Th1 selectivity that promote anticancer effects, remains a challenging task. In this work, we introduced a sulfonamide group into the acyl chain of αGalCer to form additional hydrogen bonds to intensify the glycolipid/CD1d interaction. Two compounds GCS-11 and GCS-12 demonstrated remarkable potency while exhibiting different cytokine induction patterns. Compared to αGalCer, the Th1-biased GCS-11 exhibited a 6-fold increase in IFN-γ but not IL-4, while the Th1/2-balanced GCS-12 elicited 7- and 5-fold increase in IFN-γ and IL-4, respectively, in vivo. These findings place them among the most potent NKT cell agonists, with superior antitumor effects. Therefore, hydrogen-bond-involved derivatization could be a powerful strategy to develop potent and polarized NKT cell agonists for various immunotherapies.
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Affiliation(s)
- Yu Wen
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Dong Ding
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Meng-Qiang Luo
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Xiao-Qian Peng
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - En-Yang Wang
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Ye-Hui Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Shi-Hao Zhou
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jun Guo
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, China
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2
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Romanò C, Clausen MH. Chemical Biology of αGalCer: a Chemist’s Toolbox for the Stimulation of Invariant Natural Killer T (iNKT) Cells. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cecilia Romanò
- Technical University of Denmark: Danmarks Tekniske Universitet Department of Chemisty Kemitorvet 207 2800 Kgs. Lyngby DENMARK
| | - Mads Hartvig Clausen
- Technical University of Denmark Department of Chemistry Kemitorvet, Building 201 2800 Kgs. Lyngby DENMARK
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3
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Wang L, Zhou Y, Wang X, Yuan G, Yuan C, Yang Y, Bian Q, Wang M, Zhong J. Asymmetric syntheses of four stereoisomers of 13-hydroxy-14-methylhexadecanoic acid as potential antibacterial agents. Chirality 2021; 33:797-809. [PMID: 34477253 DOI: 10.1002/chir.23352] [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: 01/08/2021] [Revised: 06/22/2021] [Accepted: 07/28/2021] [Indexed: 11/06/2022]
Abstract
The first total syntheses of four stereoisomers of 13-hydroxy-14-methylhexadecanoic acid have been accomplished. Central to this strategy are asymmetric alkynylation of aldehyde, acid-catalyzed lactonization, the selective protection of primary alcohol and Wittig reaction. The product 1a was obtained in 17 steps in 2% overall yield. Moreover, these synthetic chiral hydroxy fatty acids 1a-1d are valuable for the development of antibacterial agents.
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Affiliation(s)
- Lifeng Wang
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Yun Zhou
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Xueyang Wang
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Gucheng Yuan
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Chaonan Yuan
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Yuxiong Yang
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Qinghua Bian
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Min Wang
- Department of Applied Chemistry, China Agricultural University, Beijing, China
| | - Jiangchun Zhong
- Department of Applied Chemistry, China Agricultural University, Beijing, China
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4
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Li W, Guillaume J, Baqi Y, Wachsmann I, Gieselmann V, Van Calenbergh S, Müller CE. Synthesis and structure-activity relationships of cerebroside analogues as substrates of cerebroside sulphotransferase and discovery of a competitive inhibitor. J Enzyme Inhib Med Chem 2020; 35:1503-1512. [PMID: 32657203 PMCID: PMC7470129 DOI: 10.1080/14756366.2020.1791841] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/09/2020] [Accepted: 06/29/2020] [Indexed: 01/24/2023] Open
Abstract
Metachromatic leukodystrophy (MLD) is a rare genetic disease characterised by a dysfunction of the enzyme arylsulphatase A leading to the lysosomal accumulation of cerebroside sulphate (sulphatide) causing subsequent demyelination in patients. The enzyme galactosylceramide (cerebroside) sulphotransferase (CST) catalyses the transfer of a sulphate group from 3'-phosphoadenosine-5'-phosphosulphate (PAPS) to cerebrosides producing sulphatides. Substrate reduction therapy for arylsulphatase A by inhibition of CST was proposed as a promising therapeutic approach. To identify competitive CST inhibitors, we synthesised and investigated analogues of the substrate galactosylceramide with variations at the anomeric position, the acyl substituent and the carbohydrate moiety, and investigated their structure-activity relationships. While most of the compounds behaved as substrates, α-galactosylceramide 16 was identified as the first competitive CST inhibitor. Compound 16 can serve as a new lead structure for the development of drugs for the treatment of this devastating disease, MLD, for which small molecule therapeutics are currently not available.
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Affiliation(s)
- Wenjin Li
- Department of Pharmaceutical & Medicinal Chemistry, PharmaCenter Bonn, Pharmaceutical Institute, University of Bonn, Bonn, Germany
| | | | - Younis Baqi
- Department of Chemistry, College of Science, Sultan Qaboos University, Muscat, Oman
| | - Isabell Wachsmann
- Institut für Biochemie und Molekularbiologie, University of Bonn, Bonn, Germany
| | - Volkmar Gieselmann
- Institut für Biochemie und Molekularbiologie, University of Bonn, Bonn, Germany
| | | | - Christa E. Müller
- Department of Pharmaceutical & Medicinal Chemistry, PharmaCenter Bonn, Pharmaceutical Institute, University of Bonn, Bonn, Germany
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5
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Ma J, He P, Zhao C, Ren Q, Dong Z, Qiu J, Jing Y, Liu S, Du Y. A Designed α-GalCer Analog Promotes Considerable Th1 Cytokine Response by Activating the CD1d-iNKT Axis and CD11b-Positive Monocytes/Macrophages. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000609. [PMID: 32714765 PMCID: PMC7375225 DOI: 10.1002/advs.202000609] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Selective helper T cell 1 (Th1) priming agonists are a promising area of investigation for immunotherapeutic treatment of various diseases. α-galactosylceramide (α-GalCer, KRN7000), a well-studied Th1-polarizer, simultaneously induces helper T cell 2 (Th2)-type responses, which is a major drawback for its clinical applications. Based on surflex-docking computation, α-GalCer-diol, with added hydroxyl groups in the acyl chain, is designed and synthesized. Structural analyses reveal stronger affinity between α-GalCer-diol and cluster of differentiation 1d (CD1d), leading to enhanced antigen presentation by dendritic cells (DCs) and self-activation, as reflected by tight binding of the T-cell receptor (TCR)/KRN7000/CD1d ternary complex and elevated production of interleukin 12 (IL-12) and interferon-γ (IFN-γ). Consequently, invariant natural killer T cells (iNKTs) are activated and exhibit an improved Th1-type cytokine profile ex vivo and in vivo. Different from KRN7000, α-GalCer-diol markedly boosts the expansion of the CD11b+ subpopulation and enhances IFN-γ content in CD11b+ cells. These reinforced Th1-type responses collectively endow α-GalCer-diol more robust antitumor activity in a xenograft animal model using B16-F10 melanoma cells. Together, the data demonstrate a new mechanism through which α-GalCer-diol induces stronger Th1-type responses by stimulating CD11b+ leukocyte expansion and DC-conducted CD1d-restricted and TCR-mediated iNKT activation. Hence, this study may facilitate the development of novel Th1 priming agonists.
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Affiliation(s)
- Juan Ma
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Environmental SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Peng He
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Chemical SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Chuanfang Zhao
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Chemical SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Quanzhong Ren
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Environmental SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Zheng Dong
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Environmental SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jiahuang Qiu
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Environmental SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yang Jing
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- National Engineering Research Center for Carbohydrate SynthesisJiangxi Normal UniversityNanchangJiangxi330022China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Environmental SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
| | - Yuguo Du
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085P. R. China
- School of Chemical SciencesUniversity of Chinese Academy of SciencesBeijing100049P. R. China
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6
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Inuki S. [Elucidation of Biological Mechanisms Using Synthetic Natural Products and Their Derivatives]. YAKUGAKU ZASSHI 2020; 140:455-470. [PMID: 32238625 DOI: 10.1248/yakushi.19-00206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Natural products are useful sources in the search for biochemical probes and drug leads because of their unique biological activities. However, synthetic studies or functional analyses of polycyclic complex natural products or conjugated lipids (e.g., glycolipids) are often hampered because of their synthesis and handling are challenging. On the basis of rational designs, synthetic studies, and chemical modifications, natural products need to be optimized to more potent compounds with improved activities, selectivities and/or physical properties. We have been synthesizing natural products and their derivatives for the elucidation of their biological mechanisms and discovery of drug leads. This review describes three topics for developing functional compounds derived from natural products for prospective involvement in pharmaceutical research: 1) direct construction of the ergot alkaloid scaffold by palladium catalyzed domino cyclization of amino allenes; 2) identification of novel sphingosine kinase inhibitors through a structure-activity relationship study of jaspine B; and 3) design, synthesis and biological evaluation of novel CD1d glycolipid ligands containing modified lipid moieties.
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Affiliation(s)
- Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University
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7
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Hwang YS, Yim J, Song H, Park SB. Improved Th17 Selectivity of α-Galactosylceramide via Noncovalent Interactions with Diether Moiety. ACS Med Chem Lett 2019; 10:720-725. [PMID: 31097989 DOI: 10.1021/acsmedchemlett.8b00556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 04/04/2019] [Indexed: 12/11/2022] Open
Abstract
α-Galactosylceramide (α-GalCer) is a typical antigen for invariant natural killer T cells that are a subset of T cells and play critical roles in regulating immune responses. To selectively induce the secretion of certain cytokines via introducing hydrogen-bonding interaction with polar amino acid residues in the binding pocket of CD1d, a series of α-GalCer analogues with diether moiety in the acyl chain were designed and synthesized. The subsequent in vitro biological evaluation of these analogues revealed the structure-activity relationship for the selective IL-17 secretion. Analogues 5 and 6 induced the significantly increased IL-17 secretion over other cytokines, suggesting protective effects against pathogens. In contrast, analogue 7 showed the highly reduced IL-17 secretion, which may indicate potential anti-inflammatory effects.
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Affiliation(s)
- Yoon Soo Hwang
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Junhyeong Yim
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul 08826, Korea
| | - Heebum Song
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Seung Bum Park
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul 08826, Korea
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul 08826, Korea
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8
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Kim H, Song H, Park JG, Lee DS, Park SB. Development of α-GalCer Analogues with an α-Fluorocarbonyl Moiety as Th2-Selective Ligands of CD1d. ACS Med Chem Lett 2019; 10:773-779. [PMID: 31097998 DOI: 10.1021/acsmedchemlett.9b00026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/24/2019] [Indexed: 12/13/2022] Open
Abstract
A series of α-GalCer analogues containing an α-fluorocarbonyl moiety at the terminal position of the acyl chain were designed for targeting polar residues in the hydrophobic cavity of CD1d using a structure-based approach. The acyl chain length was efficiently adjusted by an asymmetric alkyne-alkyne cross coupling strategy, and the newly synthesized α-GalCer analogues showed the high Th2-selective activity of iNKT cells. The biased activity of ligands could be caused by the hydrogen-bonding interaction between ligands and CD1d according to the Th2-selective cytokine secretion and molecular docking studies.
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Affiliation(s)
- Hyunsoo Kim
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Heebum Song
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul 08826, Korea
| | - Jun-Gyu Park
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Dong-Sup Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Seung Bum Park
- CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul 08826, Korea
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9
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Li M, Wang KR, Yang JX, Peng YT, Liu YX, Zhang HX, Li XL. Supramolecular azasugar clusters based on an amphiphilic fatty-acid-deoxynojirimycin derivative as multivalent glycosidase inhibitors. J Mater Chem B 2019; 7:1379-1383. [DOI: 10.1039/c8tb03249a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A novel supramolecular multivalent glycosidase inhibitor was constructed based on the amphiphilic deoxynojirimycin derivative FA-DNJ.
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Affiliation(s)
- Min Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education)
- Key Laboratory of Chemical Biology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
| | - Ke-Rang Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education)
- Key Laboratory of Chemical Biology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
| | - Jian-Xing Yang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education)
- Key Laboratory of Chemical Biology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
| | - Ya-Tong Peng
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education)
- Key Laboratory of Chemical Biology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
| | - Yi-Xuan Liu
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education)
- Key Laboratory of Chemical Biology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
| | - Hong-Xin Zhang
- Medical Comprehensive Experimental Center of Hebei University
- Baoding
- China
| | - Xiao-Liu Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education)
- Key Laboratory of Chemical Biology of Hebei Province
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
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10
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Synthesis of Chrysogeside B from Halotolerant Fungus Penicillium and Its Antimicrobial Activities Evaluation. Sci Rep 2017; 7:45927. [PMID: 28397807 PMCID: PMC5387731 DOI: 10.1038/srep45927] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 02/28/2017] [Indexed: 11/12/2022] Open
Abstract
Chrysogeside B, a natural cerebroside, was efficiently synthesized from commercial feedstocks. The bioassays showed that compounds 4, 5 and 6 exhibited enhanced biological activities compared Chrysogeside B. Further studies revealed that free hydroxyl groups and glycosidic bond have significant impact on the antimicrobial activities. The synthesis of Chrysogeside B and analogues designed to allow identification of the features of this glycolipid required for recognition by tested bacteria and Hela cells is described.
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11
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Inuki S, Aiba T, Hirata N, Ichihara O, Yoshidome D, Kita S, Maenaka K, Fukase K, Fujimoto Y. Isolated Polar Amino Acid Residues Modulate Lipid Binding in the Large Hydrophobic Cavity of CD1d. ACS Chem Biol 2016; 11:3132-3139. [PMID: 27648599 DOI: 10.1021/acschembio.6b00674] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The CD1d protein is a nonpolymorphic MHC class I-like protein that controls the activation of natural killer T (NKT) cells through the presentation of self- and foreign-lipid ligands, glycolipids, or phospholipids, leading to the secretion of various cytokines. The CD1d contains a large hydrophobic lipid binding pocket: the A' pocket of CD1d, which recognizes hydrophobic moieties of the ligands, such as long fatty acyl chains. Although lipid-protein interactions typically rely on hydrophobic interactions between lipid chains and the hydrophobic sites of proteins, we showed that the small polar regions located deep inside the hydrophobic A' pocket could be used for the modulation of the lipid binding. A series of the ligands, α-galactosyl ceramide (α-GalCer) derivatives containing polar groups in the acyl chain, was synthesized, and the structure-activity relationship studies demonstrated that simple modification from a methylene to an amide group in the long fatty acyl chain, when introduced at optimal positions, enhanced the CD1d recognition of the glycolipid ligands. Formation of hydrogen bonds between the amide group and the polar residues was supported by molecular dynamics (MD) simulations and WaterMap calculations. The computational studies suggest that localized hydrating water molecules may play an important role in the ligand recognition. Here, the results showed that confined polar residues in the large hydrophobic lipid binding pockets of the proteins could be potential targets to modulate the affinity for its ligands.
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Affiliation(s)
- Shinsuke Inuki
- Graduate
School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Toshihiko Aiba
- Graduate
School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
- Graduate
School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Natsumi Hirata
- Graduate
School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| | - Osamu Ichihara
- Schrödinger K. K., 17F Marunouchi
Trust Tower North, 1-8-1 Marunouchi Chiyoda-ku, Tokyo 100-0005, Japan
| | - Daisuke Yoshidome
- Schrödinger K. K., 17F Marunouchi
Trust Tower North, 1-8-1 Marunouchi Chiyoda-ku, Tokyo 100-0005, Japan
| | - Shunsuke Kita
- Graduate
School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Katsumi Maenaka
- Graduate
School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Koichi Fukase
- Graduate
School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Yukari Fujimoto
- Graduate
School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
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12
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Hossain MI, Hanashima S, Nomura T, Lethu S, Tsuchikawa H, Murata M, Kusaka H, Kita S, Maenaka K. Synthesis and Th1-immunostimulatory activity of α-galactosylceramide analogues bearing a halogen-containing or selenium-containing acyl chain. Bioorg Med Chem 2016; 24:3687-95. [PMID: 27325450 DOI: 10.1016/j.bmc.2016.06.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 06/03/2016] [Accepted: 06/03/2016] [Indexed: 12/13/2022]
Abstract
A novel series of CD1d ligand α-galactosylceramides (α-GalCers) were synthesized by incorporation of the heavy atoms Br and Se in the acyl chain backbone of α-galactosyl-N-cerotoylphytosphingosine. The synthetic analogues are potent CD1d ligands and stimulate mouse invariant natural killer T (iNKT) cells to selectively enhance Th1 cytokine production. These synthetic analogues would be efficient X-ray crystallographic probes to disclose precise atomic positions of alkyl carbons and lipid-protein interactions in KRN7000/CD1d complexes.
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Affiliation(s)
- Md Imran Hossain
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan; JST, ERATO, Lipid Active Structure Project, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Shinya Hanashima
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan.
| | - Takuto Nomura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Sébastien Lethu
- JST, ERATO, Lipid Active Structure Project, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Hiroshi Tsuchikawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Michio Murata
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan; JST, ERATO, Lipid Active Structure Project, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan.
| | - Hiroki Kusaka
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Shunsuke Kita
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Katsumi Maenaka
- Laboratory of Biomolecular Science, Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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13
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Bi J, Wang J, Zhou K, Wang Y, Fang M, Du Y. Synthesis and Biological Activities of 5-Thio-α-GalCers. ACS Med Chem Lett 2015; 6:476-80. [PMID: 25941558 DOI: 10.1021/acsmedchemlett.5b00046] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 02/11/2015] [Indexed: 01/22/2023] Open
Abstract
NKT cells, a unique subset of T cells that recognizes glycolipid antigens presented by CD1d molecules, are believed to produce key cytokines of both Th1 and Th2 T cells and are thus involved in the control of several types of immune response. As an active glycolipid antigen having α-galactosyl ceramide core structure, KRN7000 showed promising immunostimulation activity and was selected as an anticancer drug candidate for further clinical application. In this report, three new KRN7000 structural analogues were designed and synthesized, in which the ring oxygen of the galactopyranose residue is replaced by a sulfur atom along with the variation on the lipid chain. Their abilities for stimulating mouse NKT cells to produce IFN-γ and IL-4 were evaluated both in vivo and in vitro.
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Affiliation(s)
- Jingjing Bi
- State
Key Laboratory of Environmental Chemistry and Eco-toxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- National
Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
| | - Jing Wang
- CAS
Key Laboratory of Pathogenic Microbiology and Immunology, Institute
of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Kai Zhou
- CAS
Key Laboratory of Pathogenic Microbiology and Immunology, Institute
of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yuancheng Wang
- State
Key Laboratory of Environmental Chemistry and Eco-toxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Min Fang
- CAS
Key Laboratory of Pathogenic Microbiology and Immunology, Institute
of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Yuguo Du
- State
Key Laboratory of Environmental Chemistry and Eco-toxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- National
Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
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