1
|
Li H, Mao H, Chen C, Xu Y, Meng S, Sun T, Zong C. Efficient synthesis of α-galactosylceramide and its C-6 modified analogs. Front Chem 2022; 10:1039731. [PMID: 36505742 PMCID: PMC9732566 DOI: 10.3389/fchem.2022.1039731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 11/07/2022] [Indexed: 11/27/2022] Open
Abstract
The synthesis of α-galactosylceramide (KRN7000) and its C-6 modified analogs remains a challenge due to the difficult α-1,2-cis-glycosidic bond. A non-participating benzyl (Bn) protecting group has been commonly used to favor the α-glycosylation product. Here, we report the α-selective glycosylation by using a bulky 4,6-O-di-tert-butylsilylene (DTBS) galactosyl donor, regardless of the 2-benzoyl (Bz) participating group. Compared with Bn, Bz groups can be selectively removed in basic conditions without impacting the C-6 azide modification. The azide has the potential for clicking with alkyne or being easily transformed to other functional groups.
Collapse
Affiliation(s)
- Huiting Li
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou, China
| | - Hongzhao Mao
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou, China
| | | | - Ying Xu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou, China
| | - Shuai Meng
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou, China
| | - Tiantian Sun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou, China
| | - Chengli Zong
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, College of Marine Science, Hainan University, Haikou, China,*Correspondence: Chengli Zong,
| |
Collapse
|
2
|
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.
Collapse
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
| |
Collapse
|
3
|
Altiti AS, Ma X, Zhang L, Ban Y, Franck RW, Mootoo DR. Synthesis and biological activities of C-glycosides of KRN 7000 with novel ceramide residues. Carbohydr Res 2017; 443-444:73-77. [PMID: 28365448 PMCID: PMC5499692 DOI: 10.1016/j.carres.2017.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 03/03/2017] [Indexed: 11/28/2022]
Abstract
The identification of immunoactive agents for clinical and mechanistic applications is a very active area of research. In this vein, analogues of the potent immunostimulant KRN 7000 with diverse cytokine profiles have attracted considerable attention. These compounds have been shown to activate iNKT cells via presentation by CD1d. Herein, we report on the synthesis and activity for four new C-glycosides of KRN 7000, 11-phenylundecanoyl and 11-p-fluorophenylundecanoyl derivatives of C-KRN 7000, 2,3-bis-epi-C-KRN 7000 and the reverse amide of C-KRN 7000. In mice, compared to C-KRN 7000, 2,3-bis-epi-C-KRN 7000 stimulated higher release of the anti-inflammatory cytokine IL-4 and lower release of the inflammatory cytokines IFN-γ and IL-12. The phenyl terminated alkanoyl and reverse amide analogues were inactive. These data suggest that structure activity effects for KRN 7000 are not necessarily additive and their use in the design of new analogues will require an improved understanding of how subtle structural changes impact on cytokine activity.
Collapse
Affiliation(s)
- Ahmad S Altiti
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY, 10065, USA; The Graduate Center, CUNY, 365 Fifth Avenue, New York, NY, 10016, USA
| | - Xiaojing Ma
- Department of Microbiology and Immunology, Weill Cornell Medicine, 1300 York Ave, New York, NY, 10065, USA
| | - Lixing Zhang
- Department of Microbiology and Immunology, Weill Cornell Medicine, 1300 York Ave, New York, NY, 10065, USA
| | - Yi Ban
- Department of Microbiology and Immunology, Weill Cornell Medicine, 1300 York Ave, New York, NY, 10065, USA
| | - Richard W Franck
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY, 10065, USA; The Graduate Center, CUNY, 365 Fifth Avenue, New York, NY, 10016, USA
| | - David R Mootoo
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY, 10065, USA; The Graduate Center, CUNY, 365 Fifth Avenue, New York, NY, 10016, USA.
| |
Collapse
|
4
|
Altiti AS, Bachan S, Mootoo DR. The Crotylation Way to Glycosphingolipids: Synthesis of Analogues of KRN7000. Org Lett 2016; 18:4654-7. [PMID: 27560147 DOI: 10.1021/acs.orglett.6b02284] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A synthesis of glycosphingolipids that centers on the reaction of O- and C-glycosyl crotylstannanes and relatively simple lipid aldehydes is described. The modularity of this strategy and versatility of the crotylation products make this an attractive approach to diverse, highly substituted libraries. The methodology is applied to analogues of the potent imunostimulatory glycolipid KRN7000, including O-, methylene-, and fluoromethine-linked isosteres with diastereomeric ceramide segments and 2-amido substitutes.
Collapse
Affiliation(s)
- Ahmad S Altiti
- Hunter College, The City University of New York (CUNY) , 695 Park Avenue, New York, New York 10021, United States.,The Graduate Center, CUNY , 365 Fifth Avenue, New York, New York 10016, United States
| | - Stewart Bachan
- Hunter College, The City University of New York (CUNY) , 695 Park Avenue, New York, New York 10021, United States.,The Graduate Center, CUNY , 365 Fifth Avenue, New York, New York 10016, United States
| | - David R Mootoo
- Hunter College, The City University of New York (CUNY) , 695 Park Avenue, New York, New York 10021, United States.,The Graduate Center, CUNY , 365 Fifth Avenue, New York, New York 10016, United States
| |
Collapse
|
5
|
Synthesis of Sphingolipids with an ω-Esterified Long Acyl Chain, Ceramide Components of the Human Epidermis. Biosci Biotechnol Biochem 2014; 76:1715-20. [DOI: 10.1271/bbb.120333] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
6
|
Ni G, Li Z, Liang K, Wu T, De Libero G, Xia C. Synthesis and evaluation of immunostimulant plasmalogen lysophosphatidylethanolamine and analogues for natural killer T cells. Bioorg Med Chem 2014; 22:2966-73. [PMID: 24767817 DOI: 10.1016/j.bmc.2014.04.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 04/03/2014] [Accepted: 04/04/2014] [Indexed: 01/09/2023]
Abstract
Plasmalogen lysophosphatidylethanolamine (pLPE) had been identified as a self antigen for natural killer T cells (NKT cells). It is very important in the development, maturation and activation of NKT cells in thymus. Besides, pLPE is a novel type of antigen for NKT cells. To evaluate the structure-activity relationship (SAR) of this new antigen, pLPE and its analogues referred to different aliphatic chains and linkages at the sn-1 position of the glycerol backbone were synthesized, and the biological activities of these analogues was characterized. It is discovered that the linkages between phosphate and lipid moiety are not important for the antigens' activities. The pLPE analogues 1, 3, 4, 7 and 9, which have additional double bonds on lipid parts, were identified as new NKT agonists. Moreover, the analogues 4, 7 and 9 were discovered as potent Th2 activators for NKT cells.
Collapse
Affiliation(s)
- Guanghui Ni
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiyuan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Kangjiang Liang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Ting Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Gennaro De Libero
- Experimental Immunology, Department of Biomedicine, University Hospital Basel, 4031 Basel, Switzerland
| | - Chengfeng Xia
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| |
Collapse
|
7
|
Laurent X, Bertin B, Renault N, Farce A, Speca S, Milhomme O, Millet R, Desreumaux P, Hénon E, Chavatte P. Switching Invariant Natural Killer T (iNKT) Cell Response from Anticancerous to Anti-Inflammatory Effect: Molecular Bases. J Med Chem 2014; 57:5489-508. [DOI: 10.1021/jm4010863] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xavier Laurent
- Faculté
de Médecine, Intestinal Biotech Development, Amphis J et K, Boulevard du Professeur Jules Leclerc, 59045 Lille Cedex, France
- Laboratoire
de Chimie Thérapeutique, EA 4481, Faculté des Sciences
Pharmaceutiques et Biologiques, Université Lille-Nord de France, 3 Rue du Professeur Laguesse, BP 83, 59006 Lille Cedex, France
| | - Benjamin Bertin
- Faculté
de
Médecine, Université Lille-Nord de France, Amphis J
et K, INSERM U995, Boulevard du Professeur
Jules Leclerc, 59045 Lille Cedex, France
| | - Nicolas Renault
- Laboratoire
de Chimie Thérapeutique, EA 4481, Faculté des Sciences
Pharmaceutiques et Biologiques, Université Lille-Nord de France, 3 Rue du Professeur Laguesse, BP 83, 59006 Lille Cedex, France
| | - Amaury Farce
- Laboratoire
de Chimie Thérapeutique, EA 4481, Faculté des Sciences
Pharmaceutiques et Biologiques, Université Lille-Nord de France, 3 Rue du Professeur Laguesse, BP 83, 59006 Lille Cedex, France
| | - Silvia Speca
- Faculté
de
Médecine, Université Lille-Nord de France, Amphis J
et K, INSERM U995, Boulevard du Professeur
Jules Leclerc, 59045 Lille Cedex, France
| | - Ophélie Milhomme
- Institut
de Chimie Pharmaceutique Albert Lespagnol, EA 4481, Université Lille-Nord de France, 3 Rue du Professeur Laguesse, BP 83, 59006 Lille Cedex, France
| | - Régis Millet
- Institut
de Chimie Pharmaceutique Albert Lespagnol, EA 4481, Université Lille-Nord de France, 3 Rue du Professeur Laguesse, BP 83, 59006 Lille Cedex, France
| | - Pierre Desreumaux
- Faculté
de
Médecine, Université Lille-Nord de France, Amphis J
et K, INSERM U995, Boulevard du Professeur
Jules Leclerc, 59045 Lille Cedex, France
| | - Eric Hénon
- Université
de Reims Champagne-Ardenne, UFR des Sciences Exactes et Naturelles,
BSMA-ICMR, UMR CNRS 6229, Moulin de
la Housse, BP 1039, 51687 Reims Cedex 2, France
| | - Philippe Chavatte
- Laboratoire
de Chimie Thérapeutique, EA 4481, Faculté des Sciences
Pharmaceutiques et Biologiques, Université Lille-Nord de France, 3 Rue du Professeur Laguesse, BP 83, 59006 Lille Cedex, France
- Institut
de Chimie Pharmaceutique Albert Lespagnol, EA 4481, Université Lille-Nord de France, 3 Rue du Professeur Laguesse, BP 83, 59006 Lille Cedex, France
| |
Collapse
|
8
|
Hung JT, Sawant RC, Chen JC, Yen YF, Chen WS, Yu AL, Luo SY. Design and synthesis of galactose-6-OH-modified α-galactosyl ceramide analogues with Th2-biased immune responses. RSC Adv 2014. [DOI: 10.1039/c4ra08602c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, a simple type of O-6 analogue of KRN7000 was synthesized starting from galactosyl iodide and d-lyxose.
Collapse
Affiliation(s)
- Jung-Tung Hung
- Genomics Research Center
- Academia Sinica
- Taipei 115, Taiwan
- Institute of Stem Cell & Translational Cancer Research
- Chang Gung Memorial Hospital at Linkou
| | | | - Ji-Chuan Chen
- Department of Chemistry
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Yu-Fen Yen
- Department of Chemistry
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Wan-Shin Chen
- Department of Chemistry
- National Chung Hsing University
- Taichung 402, Taiwan
| | - Alice L. Yu
- Genomics Research Center
- Academia Sinica
- Taipei 115, Taiwan
- Institute of Stem Cell & Translational Cancer Research
- Chang Gung Memorial Hospital at Linkou
| | - Shun-Yuan Luo
- Department of Chemistry
- National Chung Hsing University
- Taichung 402, Taiwan
| |
Collapse
|
9
|
Martinková M, Pomikalová K, Gonda J, Vilková M. A common approach to the total synthesis of l-arabino-, l-ribo-C18-phytosphingosines, ent-2-epi-jaspine B and 3-epi-jaspine B from d-mannose. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
10
|
|
11
|
RCAI-61 and related 6′-modified analogs of KRN7000: Their synthesis and bioactivity for mouse lymphocytes to produce interferon-γ in vivo. Bioorg Med Chem 2013; 21:3066-79. [DOI: 10.1016/j.bmc.2013.03.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 03/18/2013] [Accepted: 03/20/2013] [Indexed: 11/23/2022]
|