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Dangerfield EM, Ishizuka S, Kodar K, Yamasaki S, Timmer MSM, Stocker BL. Chimeric NOD2 Mincle Agonists as Vaccine Adjuvants. J Med Chem 2024; 67:5373-5390. [PMID: 38507580 DOI: 10.1021/acs.jmedchem.3c01840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
There is a need for improved vaccine adjuvants to augment vaccine efficacy. One way to address this is by targeting multiple immune cell pathogen recognition receptors (PRRs) using chimeric pathogen-associated molecular patterns (PAMPs). Conjugation of the PAMPs will ensure codelivery of the immunostimulatory molecules to the same cell, enhancing adjuvant activity. The macrophage inducible C-type lectin (Mincle) is a promising PRR for adjuvant development; however, no effective chimeric Mincle adjuvants have been prepared. We addressed this by synthesizing Mincle adjuvant conjugates, MDP-C18Brar and MDP-C18Brar-dilipid, which contain PAMPs recognized by Mincle and the nucleotide-binding oligomerization domain 2 (NOD2). The two PAMPs are joined by a pH-sensitive oxyamine linker which, upon acidification at lysosomal pH, hydrolyzed to release the NOD2 ligands. The conjugates elicited the production of Th1 and Th17 promoting cytokines in vitro, and when using OVA as a model antigen, exhibited enhanced T-cell-mediated immune responses and reduced toxicity in vivo, compared to the coadministration of the adjuvants.
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Affiliation(s)
- Emma M Dangerfield
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Shigenari Ishizuka
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kristel Kodar
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
- Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Fukuoka 812-8582, Japan
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, 260-8673, Japan
| | - Mattie S M Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
| | - Bridget L Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand
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Kodar K, Dangerfield EM, Foster AJ, Forsythe D, Ishizuka S, McConnell MJ, Yamasaki S, Timmer MSM, Stocker BL. Aryl-functionalised α,α'-Trehalose 6,6'-Glycolipid Induces Mincle-independent Pyroptotic Cell Death. Inflammation 2023:10.1007/s10753-023-01814-5. [PMID: 37140682 PMCID: PMC10359228 DOI: 10.1007/s10753-023-01814-5] [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: 12/02/2022] [Revised: 03/16/2023] [Accepted: 03/31/2023] [Indexed: 05/05/2023]
Abstract
α,α'-Trehalose 6,6'-glycolipids have long been known for their immunostimulatory properties. The adjuvanticity of α,α'-trehalose 6,6'-glycolipids is mediated by signalling through the macrophage inducible C-type lectin (Mincle) and the induction of an inflammatory response. Herein, we present an aryl-functionalised trehalose glycolipid, AF-2, that leads to the release of cytokines and chemokines, including IL-6, MIP-2 and TNF-α, in a Mincle-dependent manner. Furthermore, plate-coated AF-2 also leads to the Mincle-independent production of IL-1β, which is unprecedented for this class of glycolipid. Upon investigation into the mode of action of plate-coated AF-2, it was observed that the treatment of WT and Mincle-/- bone marrow derived macrophages (BMDM), murine RAW264.7 cells, and human monocytes with AF-2 led to lytic cell death, as evidenced using Sytox Green and lactate dehydrogenase assays, and confocal and scanning electron microscopy. The requirement for functional Gasdermin D and Caspase-1 for IL-1β production and cell death by AF-2 confirmed pyroptosis as the mode of action of AF-2. The inhibition of NLRP3 and K+ efflux reduced AF-2 mediated IL-1β production and cell death, and allowed us to conclude that AF-2 leads to Capase-1 dependent NLRP3 inflammasome-mediated cell death. The unique mode of action of plate-coated AF-2 was surprising and highlights how the physical presentation of Mincle ligands can lead to dramatically different immunological outcomes.
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Affiliation(s)
- Kristel Kodar
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Emma M Dangerfield
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Amy J Foster
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Devlin Forsythe
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
- School of Biological Sciences, PO Box 600, Wellington, New Zealand
| | - Shigenari Ishizuka
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Melanie J McConnell
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
- School of Biological Sciences, PO Box 600, Wellington, New Zealand
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Fukuoka, Japan
- Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Mattie S M Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Bridget L Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
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Thathsaranie P Manthrirathna MA, Kodar K, Ishizuka S, Dangerfield EM, Xiuyuan L, Yamasaki S, Stocker BL, S M Timmer M. 6-C-Linked trehalose glycolipids signal through Mincle and exhibit potent adjuvant activity. Bioorg Chem 2023; 133:106345. [PMID: 36764230 DOI: 10.1016/j.bioorg.2023.106345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/19/2022] [Accepted: 01/04/2023] [Indexed: 01/12/2023]
Abstract
Many studies have investigated the Mincle-mediated agonist activity of α,α'-trehalose-6,6́-glycolipids, however, none have considered how the position, or absence, of the ester moiety influences Mincle-mediated agonist activity. We prepared a variety of 6-C-linked α,α'-trehalose glycolipids containing inverted esters, ketone, carboxy or no carbonyl moieties. Modelling studies indicated that these derivatives bind to the CRD of Mincle in a manner similar to that of the prototypical Mincle agonist, trehalose dibehenate (TDB), with NFAT-GFP reporter cell assays confirming that all compounds, apart from derivatives with short alkyl chains, led to robust Mincle signalling. It was also observed that a carbonyl moiety was needed for good Mincle-mediated signalling. The ability of the compounds to induce mIL-1 β and mIL-6 production by bone marrow-derived macrophages (BMDMs) further demonstrated the agonist activity of the compounds, with the presence of a carbonyl moiety and longer lipid chains augmenting cytokine production. Notably, a C20 inverted ester led to levels of mIL-1β that were significantly greater than those induced by TDB. The same C20 inverted ester also led to a significant increase in hIL-1β and hIL-6 by human monocytes, and exhibited no toxicity, as demonstrated using BMDMs in an in vitro Sytox Green assay. The ability of the inverted ester to enhance antigen-mediated immune responses was then determined. In these studies, the inverted ester was found to augment the OVA-specific Th1/Th7 immune response in vitro, and exhibit adjuvanticity that was better than that of TDB in vivo, as evidenced by a significant increase in IgG antibodies for the inverted ester but not TDB when using OVA as a model antigen.
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Affiliation(s)
| | - Kristel Kodar
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Shigenari Ishizuka
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan; Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Emma M Dangerfield
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Lu Xiuyuan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan; Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan; Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Fukuoka, Japan; Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Bridget L Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Mattie S M Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
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Matsumaru T, Sueyoshi K, Okubo K, Fujii S, Sakuratani K, Saito R, Ueki K, Yamasaki S, Fujimoto Y. Trehalose diesters containing a polar functional group-modified lipid moiety: Synthesis and evaluation of Mincle-mediated signaling activity. Bioorg Med Chem 2022; 75:117045. [PMID: 36327694 DOI: 10.1016/j.bmc.2022.117045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/30/2022] [Accepted: 09/30/2022] [Indexed: 11/23/2022]
Abstract
Mincle, a C-type lectin receptor (CLR), activates the innate immune system by recognizing certain complex lipid compounds. In this study, we designed and synthesized trehalose disteate (TDS) and dibehenate (TDB), containing a polar-functional group in the middle of fatty acid moieties, based on a model of the Mincle-glycolipids interaction. The modified fatty acids were prepared using hydroxy fatty acids as common intermediates, and conjugated with an appropriate trehalose moiety to synthesize the desired trehalose diesters. TDE derivatives containing the modified fatty acid have different Mincle-mediated signaling activities depending on the position of the functional group and the length of the lipids. The newly developed TDE derivatives exhibit signaling activity comparable or superior to that of TDS or TDB, and the results suggest that Mincle tolerates polar functional groups at a certain position of the lipid chain of TDE. The introduction of the polar functional groups into the lipid moiety of the glycolipids also resulted in improved solubility in polar solvents, which would be advantageous for various analyses and applications.
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Affiliation(s)
- Takanori Matsumaru
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan
| | - Kodai Sueyoshi
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan
| | - Kana Okubo
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan
| | - Shusuke Fujii
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan
| | - Kasumi Sakuratani
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan
| | - Ryota Saito
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan
| | - Kazunari Ueki
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan; Laboratory of Molecular Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Suita 565-0871, Japan; Division of Molecular Design, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan; Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba 260-8673, Japan
| | - Yukari Fujimoto
- Faculty of Science and Technology, Keio University. Hiyoshi 3-14-1, Yokohama, Kanagawa 223-8522, Japan.
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Manthrirathna MATP, Dangerfield EM, Ishizuka S, Woods A, Luong BS, Yamasaki S, Timmer MSM, Stocker BL. Water-soluble trehalose glycolipids show superior Mincle binding and signaling but impaired phagocytosis and IL-1β production. Front Mol Biosci 2022; 9:1015210. [PMID: 36504717 PMCID: PMC9729344 DOI: 10.3389/fmolb.2022.1015210] [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: 08/09/2022] [Accepted: 10/25/2022] [Indexed: 11/25/2022] Open
Abstract
The tremendous potential of trehalose glycolipids as vaccine adjuvants has incentivized the study of how the structures of these ligands relate to their Mincle-mediated agonist activities. Despite this, structure-activity work in the field has been largely empirical, and less is known about how Mincle-independent pathways might be affected by different trehalose glycolipids, and whether Mincle binding by itself can serve as a proxy for adjuvanticity. There is also much demand for more water-soluble Mincle ligands. To address this need, we prepared polyethylene glycol modified trehalose glycolipids (PEG-TGLs) with enhanced water solubility and strong murine Mincle (mMincle) binding and signaling. However, only modest cytokine and chemokine responses were observed upon the treatment of GM-CSF treated bone-marrow cells with the PEG-TGLs. Notability, no IL-1β was observed. Using RNA-Seq analysis and a representative PEG-TGL, we determined that the more water-soluble adducts were less able to activate phagocytic pathways, and hence, failed to induce IL-1β production. Taken together, our data suggests that in addition to strong Mincle binding, which is a pre-requisite for Mincle-mediated cellular responses, the physical presentation of trehalose glycolipids in colloidal form is required for inflammasome activation, and hence, a strong inflammatory immune response.
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Affiliation(s)
| | - Emma M. Dangerfield
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand,Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand
| | - Shigenari Ishizuka
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan,Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Aodhamair Woods
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
| | - Brenda S. Luong
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand,Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan,Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka, Japan,Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan,Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba, Japan
| | - Mattie S. M. Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand,Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand,*Correspondence: Bridget L. Stocker, ; Mattie S. M. Timmer,
| | - Bridget L. Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand,Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand,*Correspondence: Bridget L. Stocker, ; Mattie S. M. Timmer,
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6
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Matsumaru T. Lipid Conjugates as Ligands for the C-type Lectin Receptor Mincle. TRENDS GLYCOSCI GLYC 2022. [DOI: 10.4052/tigg.2029.1j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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7
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Matsumaru T. Lipid Conjugates as Ligands for the C-type Lectin Receptor Mincle. TRENDS GLYCOSCI GLYC 2022. [DOI: 10.4052/tigg.2029.1e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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8
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Braganza CD, Kodar K, Teunissen T, Andreassend SK, Khan A, Timmer MSM, Stocker BL. Lipophilic glucose monoesters and glycosides are potent human Mincle agonists. Org Biomol Chem 2022; 20:3096-3104. [DOI: 10.1039/d1ob02111g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Macrophage inducible C-type lectin (Mincle) is a pattern recognition receptor on myeloid cells that represents a promising target for Th1-stimulating adjuvants. We report on the synthesis of branched and aromatic...
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Hanna C, Maxwell JWC, Ismanto HS, Ashhurst A, Artner L, Rudrawar S, Britton W, Yamasaki S, Payne RJ. Synthetic Vaccines Targeting Mincle Through Conjugation of Trehalose Dibehenate. Chem Commun (Camb) 2022; 58:6890-6893. [DOI: 10.1039/d2cc02100e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The covalent fusion of immunostimulatory adjuvants to immunogenic antigens is a promising strategy for the development of effective synthetic vaccines for infectious diseases. Herein, we describe the conjugation of a...
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Dangerfield EM, Lynch AT, Kodar K, Stocker BL, Timmer MSM. Amide-linked brartemicin glycolipids exhibit Mincle-mediated agonist activity in vitro. Carbohydr Res 2021; 511:108461. [PMID: 34753005 DOI: 10.1016/j.carres.2021.108461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 10/17/2021] [Accepted: 10/18/2021] [Indexed: 02/06/2023]
Abstract
Lipidated derivatives of the natural product brartemicin show much promise as vaccine adjuvants due to their ability to signal through the Macrophage Inducible C-type Lectin (Mincle). We synthesised three lipophilic amide-linked brartemicin derivatives and compared their agonist activity to that of their ester-linked counterparts in vitro. We demonstrate that the brartemicin amide derivatives activate bone-marrow-derived macrophages (BMDMs) in a Mincle-dependent manner, as evidenced by the production of the pro-inflammatory cytokine IL-1β in wildtype but not Mincle-/- cells. The amide derivatives showed activity that was as good as, if not better than, their ester counterparts. Two of the amide derivatives, but none of the ester-derivatives, also led to the production of IL-1β by human-derived monocytes. As the production of IL-1β is a good indicator of vaccine adjuvanticity potential, these findings suggest that amide-linked brartemicin derivatives show particular promise as vaccine adjuvants.
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Affiliation(s)
- Emma M Dangerfield
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Amy T Lynch
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Kristel Kodar
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Bridget L Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Mattie S M Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
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11
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Timmer MSM, Teunissen TJ, Kodar K, Foster AJ, Yamasaki S, Stocker BL. Cholesteryl glucosides signal through the carbohydrate recognition domain of the macrophage inducible C-type lectin (mincle). Org Biomol Chem 2021; 19:2198-2202. [PMID: 33625427 DOI: 10.1039/d0ob02342f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Cholesteryl α-d-glucosides (αGCs) are unique metabolic products of the cancer-causing human pathogen Helicobacter pylori. Via signalling through the Macrophage inducible C-type lectin (Mincle) and the induction of a pro-inflammatory response, they are thought to play a role in the development of gastric atrophy. Herein, we prepared the first library of steryl d-glucosides and determined that they preferentially signal through the carbohydrate recognition domain of human Mincle, rather than the amino acid consensus motif. Lipidated steryl d-glucosides exhibited enhanced Mincle agonist activity, with C18 cholesteryl 6-O-acyl-α-d-glucoside (2c) being the most potent activator of human monocytes. Despite exhibiting strong Mincle signalling, sito- (5b) and stigmasterol glycosides (6b) led to a poor inflammatory response in primary cells, suggesting that Mincle is a potential therapeutic target for preventing H. pylori-mediated inflammation and cancer.
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Affiliation(s)
- Mattie S M Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Thomas J Teunissen
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Kristel Kodar
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Amy J Foster
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan and Laboratory of Molecular Immunology, Immunology Frontier Research Center (IFReC), Osaka University, Suita, Osaka 565-0871, Japan and Division of Molecular Design, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Fukuoka 812-8582, Japan and Division of Molecular Immunology, Medical Mycology Research Center, Chiba University, Chiba 260-8673, Japan
| | - Bridget L Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
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12
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Fujiu K, Manabe I. Nerve-macrophage interactions in cardiovascular disease. Int Immunol 2021; 34:81-95. [PMID: 34173833 DOI: 10.1093/intimm/dxab036] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 06/25/2021] [Indexed: 01/09/2023] Open
Abstract
The heart is highly innervated by autonomic neurons, and dynamic autonomic regulation of the heart and blood vessels is essential for animals to carry out the normal activities of life. Cardiovascular diseases, including heart failure and myocardial infarction, are often characterized in part by an imbalance in autonomic nervous system activation, with excess sympathetic and diminished parasympathetic activation. Notably, however, this is often accompanied by chronic inflammation within the cardiovascular tissues, which suggests there are interactions between autonomic dysregulation and inflammation. Recent studies have been unraveling the mechanistic links between autonomic nerves and immune cells within cardiovascular disease. The autonomic nervous system and immune system also act in concert to coordinate the actions of multiple organs that not only maintain homeostasis but also likely play key roles in disease-disease interactions, such as cardiorenal syndrome and multimorbidity. In this review, we summarize the physiological and pathological interactions between autonomic nerves and macrophages in the context of cardiovascular disease.
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Affiliation(s)
- Katsuhito Fujiu
- Department of Cardiovascular Medicine, the University of Tokyo, Hongo, Bunkyo, Tokyo, Japan.,Department of Advanced Cardiology, the University of Tokyo, Hongo, Bunkyo, Tokyo, Japan
| | - Ichiro Manabe
- Department of Systems Medicine, Graduate School of Medicine, Chiba University, Inohana, Chuo, Chiba, Chiba, Japan
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13
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Rasheed OK, Buhl C, Evans JT, Ryter KT. Design of Trehalose-Based Amide/Sulfonamide C-type Lectin Receptor Signaling Compounds. ChemMedChem 2021; 16:1246-1251. [PMID: 33415819 PMCID: PMC8068603 DOI: 10.1002/cmdc.202000775] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 01/06/2021] [Indexed: 02/06/2023]
Abstract
Mincle agonists have been shown to induce inflammatory cytokine production, such as tumor necrosis factor-alpha (TNF) and promote the development of a Th1/Th17 immune response that might be crucial to development of effective vaccination against pathogens such as Mycobacterium tuberculosis. As an expansion of our previous work, a library of 6,6'-amide and sulfonamide α,α-d-trehalose compounds with various substituents on the aromatic ring was synthesized efficiently in good to excellent yields. These compounds were evaluated for their ability to activate the human C-type lectin receptor Mincle by the induction of cytokines from human peripheral blood mononuclear cells. A preliminary structure-activity relationship (SAR) of these novel trehalose diamides and sulfonamides revealed that aryl amide-linked trehalose compounds demonstrated improved activity and relatively high potency cytokine production compared to the Mincle ligand trehalose dibehenate adjuvant (TDB) and the natural ligand trehalose dimycolate (TDM) inducing dose-dependent and human-Mincle-specific stimulation in a HEK reporter cell line.
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Affiliation(s)
- Omer K Rasheed
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
- Inimmune Corp., 1121 E. Broadway, Suite 121, Missoula, MT 59802, USA
| | - Cassandra Buhl
- Department of Biomedical and Pharmaceutical Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
| | - Jay T Evans
- Department of Biomedical and Pharmaceutical Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
| | - Kendal T Ryter
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
- Center for Biomolecular Structure and Dynamics, University of Montana, 32 Campus Dr., Missoula, MT 59812, USA
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14
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Trehalose diamide glycolipids augment antigen-specific antibody responses in a Mincle-dependent manner. Bioorg Chem 2021; 110:104747. [PMID: 33799177 DOI: 10.1016/j.bioorg.2021.104747] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/15/2021] [Accepted: 02/13/2021] [Indexed: 12/11/2022]
Abstract
Many studies have investigated how trehalose glycolipid structures can be modified to improve their Macrophage inducible C-type lectin (Mincle)-mediated adjuvanticity. However, in all instances, the ester-linkage of α,ά-trehalose to the lipid of choice remained. We investigated how changing this ester-linkage to an amide influences Mincle signalling and agonist activity and demonstrated that Mincle tolerates this functional group change. In in vivo vaccination studies in murine and ovine model systems, using OVA or Mannheimia haemolytica and Mycoplasma ovipneumoniae as vaccine antigens, respectively, it was demonstrated that a representative trehalose diamide glycolipid was able to enhance antibody-specific immune responses. Notably, IgG titres against M. ovipneumoniae were significantly greater when using trehalose dibehenamide (A-TDB) compared to trehalose dibehenate (TDB). This is particularly important as infection with M. ovipneumoniae predisposes sheep to pneumonia.
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15
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Bashiri S, Koirala P, Toth I, Skwarczynski M. Carbohydrate Immune Adjuvants in Subunit Vaccines. Pharmaceutics 2020; 12:E965. [PMID: 33066594 PMCID: PMC7602499 DOI: 10.3390/pharmaceutics12100965] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/08/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022] Open
Abstract
Modern subunit vaccines are composed of antigens and a delivery system and/or adjuvant (immune stimulator) that triggers the desired immune responses. Adjuvants mimic pathogen-associated molecular patterns (PAMPs) that are typically associated with infections. Carbohydrates displayed on the surface of pathogens are often recognized as PAMPs by receptors on antigen-presenting cells (APCs). Consequently, carbohydrates and their analogues have been used as adjuvants and delivery systems to promote antigen transport to APCs. Carbohydrates are biocompatible, usually nontoxic, biodegradable, and some are mucoadhesive. As such, carbohydrates and their derivatives have been intensively explored for the development of new adjuvants. This review assesses the immunological functions of carbohydrate ligands and their ability to enhance systemic and mucosal immune responses against co-administered antigens. The role of carbohydrate-based adjuvants/delivery systems in the development of subunit vaccines is discussed in detail.
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Affiliation(s)
- Sahra Bashiri
- School of Chemistry and Molecular Bioscience, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia; (S.B.); (P.K.)
| | - Prashamsa Koirala
- School of Chemistry and Molecular Bioscience, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia; (S.B.); (P.K.)
| | - Istvan Toth
- School of Chemistry and Molecular Bioscience, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia; (S.B.); (P.K.)
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
- School of Pharmacy, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Bioscience, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia; (S.B.); (P.K.)
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16
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Holzheimer M, Reijneveld JF, Ramnarine AK, Misiakos G, Young DC, Ishikawa E, Cheng TY, Yamasaki S, Moody DB, Van Rhijn I, Minnaard AJ. Asymmetric Total Synthesis of Mycobacterial Diacyl Trehaloses Demonstrates a Role for Lipid Structure in Immunogenicity. ACS Chem Biol 2020; 15:1835-1841. [PMID: 32293864 PMCID: PMC7372558 DOI: 10.1021/acschembio.0c00030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first asymmetric total synthesis of three structures proposed for mycobacterial diacyl trehaloses, DAT1, DAT2, and DAT3 is reported. The presence of two of these glycolipids, DAT1 and DAT3, within different strains of pathogenic M. tuberculosis was confirmed, and it was shown that their abundance varies significantly. In mass spectrometry, synthetic DAT2 possessed almost identical fragmentation patterns to presumptive DAT2 from Mycobacterium tuberculosis H37Rv, but did not coelute by HPLC, raising questions as the precise relationship of the synthetic and natural materials. The synthetic DATs were examined as agonists for signaling by the C-type lectin, Mincle. The small differences in the chemical structure of the lipidic parts of DAT1, DAT2, and DAT3 led to drastic differences of Mincle binding and activation, with DAT3 showing similar potency as the known Mincle agonist trehalose dimycolate (TDM). In the future, DAT3 could serve as basis for the design of vaccine adjuvants with simplified chemical structure.
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Affiliation(s)
- Mira Holzheimer
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Josephine F. Reijneveld
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
- Brigham and Women’s Hospital Division of Rheumatology, Immunology and Allergy and Harvard Medical School, Boston, Massachusetts 02115, United States
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL, Utrecht, The Netherlands
| | - Alexandrea K. Ramnarine
- Brigham and Women’s Hospital Division of Rheumatology, Immunology and Allergy and Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Georgios Misiakos
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - David C. Young
- Brigham and Women’s Hospital Division of Rheumatology, Immunology and Allergy and Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Eri Ishikawa
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tan-Yun Cheng
- Brigham and Women’s Hospital Division of Rheumatology, Immunology and Allergy and Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Sho Yamasaki
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
- Laboratory of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Suita, Osaka 565-0871, Japan
| | - D. Branch Moody
- Brigham and Women’s Hospital Division of Rheumatology, Immunology and Allergy and Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Ildiko Van Rhijn
- Brigham and Women’s Hospital Division of Rheumatology, Immunology and Allergy and Harvard Medical School, Boston, Massachusetts 02115, United States
- Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL, Utrecht, The Netherlands
| | - Adriaan J. Minnaard
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
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17
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Rasheed OK, Ettenger G, Buhl C, Child R, Miller SM, Evans JT, Ryter KT. 6,6'-Aryl trehalose analogs as potential Mincle ligands. Bioorg Med Chem 2020; 28:115564. [PMID: 32616186 PMCID: PMC7372699 DOI: 10.1016/j.bmc.2020.115564] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/27/2020] [Accepted: 05/20/2020] [Indexed: 12/17/2022]
Abstract
6,6'-Aryl trehalose derivatives have been synthesized with a view towards identifying novel Th-17-inducing vaccine adjuvants based on the high affinity Mincle ligand Brartemicin. The initial structure-activity relationships of these novel trehalose-based compounds were investigated. All compounds have been evaluated for their ability to engage the Mincle receptor and induce a potential pro-Th17 cytokine profile from human peripheral blood mononuclear cells based on IL-6 production in human peripheral blood mononuclear cells. The preliminary biological characterization of the designed analogs presented in this paper should aid in the future design and testing of more affine ligands that may foster the discovery of novel adjuvants with improved pharmacological properties.
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Affiliation(s)
- Omer K Rasheed
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States
| | - George Ettenger
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States
| | - Cassandra Buhl
- Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States
| | - Robert Child
- Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States
| | - Shannon M Miller
- Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States
| | - Jay T Evans
- Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States; Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States
| | - Kendal T Ryter
- Department of Chemistry and Biochemistry, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States; Center for Translational Medicine, University of Montana, 32 Campus Drive, Missoula, MT 59812, United States.
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18
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Schierwagen R, Uschner FE, Ortiz C, Torres S, Brol MJ, Tyc O, Gu W, Grimm C, Zeuzem S, Plamper A, Pfeifer P, Zimmer S, Welsch C, Schaefer L, Rheinwalt KP, Clària J, Arroyo V, Trebicka J, Klein S. The Role of Macrophage-Inducible C-Type Lectin in Different Stages of Chronic Liver Disease. Front Immunol 2020; 11:1352. [PMID: 32733451 PMCID: PMC7358277 DOI: 10.3389/fimmu.2020.01352] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 05/27/2020] [Indexed: 12/18/2022] Open
Abstract
The macrophage-inducible C-type lectin (mincle) is part of the innate immune system and acts as a pattern recognition receptor for pathogen-associated molecular patterns (PAMPS) and damage-associated molecular patterns (DAMPs). Ligand binding induces mincle activation which consequently interacts with the signaling adapter Fc receptor, SYK, and NF-kappa-B. There is also evidence that mincle expressed on macrophages promotes intestinal barrier integrity. However, little is known about the role of mincle in hepatic fibrosis, especially in more advanced disease stages. Mincle expression was measured in human liver samples from cirrhotic patients and donors collected at liver transplantation and in patients undergoing bariatric surgery. Human results were confirmed in rodent models of cirrhosis and acute-on-chronic liver failure (ACLF). In these models, the role of mincle was investigated in liver samples as well as in peripheral blood monocytes (PBMC), tissues from the kidney, spleen, small intestine, and heart. Additionally, mincle activation was stimulated in experimental non-alcoholic steatohepatitis (NASH) by treatment with mincle agonist trehalose-6,6-dibehenate (TDB). In human NASH, mincle is upregulated with increased collagen production. In ApoE deficient mice fed high-fat western diet (NASH model), mincle activation significantly increases hepatic collagen production. In human cirrhosis, mincle expression is also significantly upregulated. Furthermore, mincle expression is associated with the stage of chronic liver disease. This could be confirmed in rat models of cirrhosis and ACLF. ACLF was induced by LPS injection in cirrhotic rats. While mincle expression and downstream signaling via FC receptor gamma, SYK, and NF-kappa-B are upregulated in the liver, they are downregulated in PBMCs of these rats. Although mincle expressed on macrophages might be beneficial for intestinal barrier integrity, it seems to contribute to inflammation and fibrosis once the intestinal barrier becomes leaky in advanced stages of chronic liver disease.
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Affiliation(s)
- Robert Schierwagen
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Frank E Uschner
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Cristina Ortiz
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Sandra Torres
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Max J Brol
- Department of Internal Medicine I, University of Bonn, Bonn, Germany
| | - Olaf Tyc
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Wenyi Gu
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Christian Grimm
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Stefan Zeuzem
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Andreas Plamper
- Department for Bariatric, Metabolic and Plastic Surgery, St. Franziskus-Hospital, Cologne, Germany
| | - Philipp Pfeifer
- Department of Medicine II, Heart Center, University Hospital Bonn, Bonn, Germany
| | - Sebastian Zimmer
- Department of Medicine II, Heart Center, University Hospital Bonn, Bonn, Germany
| | - Christoph Welsch
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
| | - Liliana Schaefer
- Centre for Pharmacy Frankfurt/ZAFES, Institute for Pharmacology and Toxicology, University Hospital, Goethe University, Frankfurt, Germany
| | - Karl P Rheinwalt
- Department for Bariatric, Metabolic and Plastic Surgery, St. Franziskus-Hospital, Cologne, Germany
| | - Joan Clària
- European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain
| | - Vicente Arroyo
- European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain
| | - Jonel Trebicka
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany.,European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain.,Department of Medical Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark.,Department of Mechanical Biology, Institute for Bioengineering of Catalonia, Barcelona, Spain
| | - Sabine Klein
- Department of Internal Medicine I, University Hospital, Goethe University, Frankfurt, Germany
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19
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Kodar K, McConnell MJ, Harper JL, Timmer MSM, Stocker BL. The coadministration of trehalose dibehenate and monosodium urate crystals promotes an antitumor phenotype in human‐derived myeloid cells. Immunol Cell Biol 2020; 98:411-422. [DOI: 10.1111/imcb.12329] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 03/12/2020] [Accepted: 03/15/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Kristel Kodar
- School of Chemical and Physical Sciences Victoria University of Wellington Wellington New Zealand
- Centre for Biodiscovery Victoria University of Wellington Wellington New Zealand
| | - Melanie J McConnell
- Centre for Biodiscovery Victoria University of Wellington Wellington New Zealand
- School of Biological Sciences Victoria University of Wellington Wellington New Zealand
| | - Jacquie L Harper
- School of Chemical and Physical Sciences Victoria University of Wellington Wellington New Zealand
| | - Mattie SM Timmer
- School of Chemical and Physical Sciences Victoria University of Wellington Wellington New Zealand
- Centre for Biodiscovery Victoria University of Wellington Wellington New Zealand
| | - Bridget L Stocker
- School of Chemical and Physical Sciences Victoria University of Wellington Wellington New Zealand
- Centre for Biodiscovery Victoria University of Wellington Wellington New Zealand
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20
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Khan A, Hollwedel F, Maus UA, Stocker BL, Timmer MSM. Synthesis of α-Glucosyl Diacylglycerides as potential adjuvants for Streptococcus pneumoniae vaccines. Carbohydr Res 2020; 489:107951. [PMID: 32086019 DOI: 10.1016/j.carres.2020.107951] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 12/01/2022]
Abstract
α-Glucosyl diacylglycerols (αGlc-DAGs) play an important role in providing protective immunity against Streptococcus pneumoniae infection through the engagement of the Macrophage inducible C-type lectin (Mincle). Herein, we efficiently synthesised αGlc-DAGs containing C12, C14, C16 and C18 acyl chains in 7 steps and 44-47% overall yields, and demonstrated that Mincle signaling was dependent on lipid length using mMincle and hMincle NFAT-GFP reporter cells. The greatest production of GFP in both cell types was elicited by C14 αGlc-DAG. Accordingly, C14 αGlc-DAG has potential to act as an adjuvant to augment the immune response against S. pneumoniae antigens.
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Affiliation(s)
- Ayesha Khan
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, P. O. Box 600, Wellington, 6140, New Zealand
| | - Femke Hollwedel
- Department of Experimental Pneumology, Hannover Medical School, Hannover, Germany; German Center for Lung Research, partner site BREATH, Hannover, Germany
| | - Ulrich A Maus
- Department of Experimental Pneumology, Hannover Medical School, Hannover, Germany; German Center for Lung Research, partner site BREATH, Hannover, Germany
| | - Bridget L Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, P. O. Box 600, Wellington, 6140, New Zealand.
| | - Mattie S M Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand; Centre for Biodiscovery, Victoria University of Wellington, P. O. Box 600, Wellington, 6140, New Zealand.
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21
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Khan A, Braganza CD, Kodar K, Timmer MSM, Stocker BL. Stereochemistry, lipid length and branching influences Mincle agonist activity of monoacylglycerides. Org Biomol Chem 2020; 18:425-430. [PMID: 31774425 DOI: 10.1039/c9ob02302j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report on the synthesis of a series of enantiomerically pure linear, iso-branched, and α-branched monoacyl glycerides (MAGs) in 63-72% overall yield. The ability of the MAGs to signal through human macrophage inducible C-type lectin (hMincle) using NFAT-GFP reporter cells was explored, as was the ability of the compounds to activate human monocytes. From these studies, MAGs with an acyl chain length ≥C22 were required for Mincle activation and the production of interleukin-8 (IL-8) by human monocytes. Moreover, the iso-branched MAGs led to a more pronounced immune response compared to linear MAGs, while an α-branched MAG containing a C-32 acyl chain activated cells to a higher degree than trehalose dibehenate (TDB), the prototypical Mincle agonist. Across the compound classes, the activity of the sn-1 substituted isomers was greater than the sn-3 counterparts. None of the representative compounds were cytotoxic, thus mitigating cytotoxicity as a potential mediator of cellular activity. Taken together, 6h (sn-1, iC26+1), 8a (sn-1, C32) and 8b (sn-3, C32) exhibited the best immunostimulatory properties and thus, have potential as vaccine adjuvants.
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Affiliation(s)
- Ayesha Khan
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
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22
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Foster AJ, Kodar K, Timmer MSM, Stocker BL. ortho-Substituted lipidated Brartemicin derivative shows promising Mincle-mediated adjuvant activity. Org Biomol Chem 2020; 18:1095-1103. [DOI: 10.1039/c9ob02397f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structure activity relationship studies of lipidated Brartemicin analogues have revealed the potent adjuvant activity of ortho-substituted Brartemicin analogue 5a, which was better than that of p-OC18 (5c) and C18dMeBrar (4).
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Affiliation(s)
- Amy J. Foster
- School of Chemical and Physical Sciences
- Victoria University of Wellington
- Wellington
- New Zealand
- Centre for Biodiscovery
| | - Kristel Kodar
- School of Chemical and Physical Sciences
- Victoria University of Wellington
- Wellington
- New Zealand
- Centre for Biodiscovery
| | - Mattie S. M. Timmer
- School of Chemical and Physical Sciences
- Victoria University of Wellington
- Wellington
- New Zealand
- Centre for Biodiscovery
| | - Bridget L. Stocker
- School of Chemical and Physical Sciences
- Victoria University of Wellington
- Wellington
- New Zealand
- Centre for Biodiscovery
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23
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Wahi K, Kodar K, McConnell MJ, Harper JL, Timmer MSM, Stocker BL. MSU Crystals Enhance TDB-Mediated Inflammatory Macrophage IL-1β Secretion. Inflammation 2019; 42:1129-1136. [PMID: 30806957 DOI: 10.1007/s10753-019-00976-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The tumour microenvironment predominantly consists of macrophages with phenotypes ranging from pro-inflammatory (M1-like) to anti-inflammatory (M2-like). Trehalose-6,6'-dibehenate (TDB) displays moderate anti-tumour activity and stimulates M1-like macrophages via the macrophage inducible C-type lectin (Mincle) resulting in IL-1β production. In this study, we examined if monosodium urate (MSU), a known vaccine adjuvant, can boost IL-1β production by TDB-stimulated macrophages. We investigated the effect of MSU/TDB co-treatment on IL-1β production by GM-CSF (M1-like) and M-CSF/IL-4 (M2-like) differentiated mouse bone marrow macrophages (BMMs) and found that MSU/TDB co-treatment of GM-CSF BMMs significantly enhanced IL-1β production in a Mincle-dependent manner. Western blot analysis showed that increased IL-1β production by GM-CSF BMMs was associated with the induction of pro-IL-1β expression by TDB rather than MSU. Flow cytometry analysis showed that MSU/TDB co-stimulation of GM-CSF BMMs led to greater expansion of CD86high/MHC IIhigh and CD86low/MHC IIlow subpopulations; however, only the latter showed increased production of IL-1β. Together, these findings provide evidence of the potential to use MSU/TDB co-treatment to boost IL-1β-mediated anti-tumour activity in M1-like tumour-associated macrophages.
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Affiliation(s)
- Kanu Wahi
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.,Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Kristel Kodar
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.,Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Melanie J McConnell
- Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.,School of Biological Sciences, PO Box 600, Wellington, New Zealand
| | - Jacquie L Harper
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Mattie S M Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand. .,Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Bridget L Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand. .,Centre for Biodiscovery, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
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24
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Lim R, Lappas M. Expression and function of macrophage-inducible C-type lectin (Mincle) in inflammation driven parturition in fetal membranes and myometrium. Clin Exp Immunol 2019; 197:95-110. [PMID: 30793298 DOI: 10.1111/cei.13281] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2019] [Indexed: 12/31/2022] Open
Abstract
The pivotal role of inflammatory processes in human parturition is well known, but not completely understood. We have performed a study to examine the role of macrophage-inducible C-type lectin (Mincle) in inflammation-associated parturition. Using human samples, we show that spontaneous labour is associated with up-regulated Mincle expression in the myometrium and fetal membranes. Mincle expression was also increased in fetal membranes and myometrium in the presence of pro-labour mediators, the proinflammatory cytokines interleukin (IL)-1B and tumour necrosis factor (TNF), and Toll-like receptor (TLR) ligands fsl-1, poly(I:C), lipopolysaccharide (LPS) and flagellin. These clinical studies are supported by mouse studies, where an inflammatory challenge in a mouse model of preterm birth increased Mincle expression in the uterus. Importantly, elimination of Mincle decreased the effectiveness of proinflammatory cytokines and TLR ligands to induce the expression of pro-labour mediators; namely, proinflammatory cytokines and chemokines, contraction-associated proteins and prostaglandins, and extracellular matrix remodelling enzymes, matrix metalloproteinases. The data presented in this study suggest that Mincle is required when inflammatory activation precipitates parturition.
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Affiliation(s)
- R Lim
- Mercy Perinatal Research Centre, Mercy Hospital for Women, Heidelberg, Victoria, Australia
| | - M Lappas
- Obstetrics, Nutrition and Endocrinology Group, Department of Obstetrics and Gynaecology, University of Melbourne, Victoria, Australia
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25
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Das A, Basak P, Pramanick A, Majumder R, Pal D, Ghosh A, Guria M, Bhattacharyya M, Banik SP. Trehalose mediated stabilisation of cellobiase aggregates from the filamentous fungus Penicillium chrysogenum. Int J Biol Macromol 2019; 127:365-375. [PMID: 30658143 DOI: 10.1016/j.ijbiomac.2019.01.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 01/12/2019] [Accepted: 01/14/2019] [Indexed: 12/22/2022]
Abstract
Extracellular fungal cellobiases develop large stable aggregates by reversible concentration driven interaction. In-vitro addition of trehalose resulted in bigger cellobiase assemblies with increased stability against heat and dilution induced dissociation. In presence of 0.1 M trehalose, the size of aggregates increased from 344 nm to 494 nm. The increase in size was also observed in zymography of cellobiase. Activation energy of the trehalose stabilised enzyme (Ea = 220.9 kJ/mol) as compared to control (Ea = 257.734 kJ/mol), suggested enhanced thermostability and also showed increased resistance to chaotropes. Purified cellobiase was found to contain 196.27 μg of sugar/μg of protein. It was proposed that presence of glycan on protein's surface impedes and delays trehalose docking. Consequently, self-association of cellobiase preceded coating by trehalose leading to stabilisation of bigger cellobiase aggregates. In unison with the hypothesis, ribosylated BSA failed to get compacted by trehalose and developed into bigger aggregates with average size increasing from 210 nm to 328 nm. Wheat Germ Lectin, in presence of trehalose, showed higher molecular weight assemblies in DLS, native-PAGE and fluorescence anisotropy. This is the first report of cross-linking independent stabilisation of purified fungal glycosidases providing important insights towards understanding the aggregation and stability of glycated proteins.
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Affiliation(s)
- Ahana Das
- Department of Microbiology, Maulana Azad College, 8 Rafi Ahmed Kidwai Road, Kolkata 700013, West Bengal, India
| | - Pijush Basak
- Jagadis Bose National Science Talent Search, 1300, Rajdanga Main Road, Sector C, East Kolkata Township, Kolkata 700107, West Bengal, India
| | - Arnab Pramanick
- Jagadis Bose National Science Talent Search, 1300, Rajdanga Main Road, Sector C, East Kolkata Township, Kolkata 700107, West Bengal, India
| | - Rajib Majumder
- School of Life Science and Biotechnology, Department of Biotechnology, Adamas University, Kolkata 700126, West Bengal, India
| | - Debadrita Pal
- Department of Biology, New Mexico State University, PO Box 30001, MSC 3AF, Las Cruces, NM 88003, United States of America
| | - Avishek Ghosh
- Department of Microbiology, Maulana Azad College, 8 Rafi Ahmed Kidwai Road, Kolkata 700013, West Bengal, India
| | - Manas Guria
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India
| | - Maitree Bhattacharyya
- Jagadis Bose National Science Talent Search, 1300, Rajdanga Main Road, Sector C, East Kolkata Township, Kolkata 700107, West Bengal, India.
| | - Samudra Prosad Banik
- Department of Microbiology, Maulana Azad College, 8 Rafi Ahmed Kidwai Road, Kolkata 700013, West Bengal, India.
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26
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Van Huy L, Tanaka C, Imai T, Yamasaki S, Miyamoto T. Synthesis of 12- O-Mono- and Diglycosyl-oxystearates, a New Class of Agonists for the C-type Lectin Receptor Mincle. ACS Med Chem Lett 2019; 10:44-49. [PMID: 30655945 DOI: 10.1021/acsmedchemlett.8b00413] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 12/13/2018] [Indexed: 11/28/2022] Open
Abstract
Fifteen glycosyl-oxystearates were synthesized by Crich's 4,6-benzylidene and Köening-Knorr strategies. Assessment of structure-activity relationships using macrophage-inducible C-type lectin (Mincle) receptor cells expressing nuclear factor of activated T cells (NFAT)-green fluorescent protein (GFP) revealed that four dimannopyranosyl-oxystearate analogues were Mincle agonists and that 12-O-(2-O-α-d-mannopyranosyl)-α-d-mannopyranosyl-oxystearate was as an activator of both mouse and human Mincle.
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Affiliation(s)
- Le Van Huy
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Chiaki Tanaka
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Takashi Imai
- Department of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Sho Yamasaki
- Department of Molecular Immunology, Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan
| | - Tomofumi Miyamoto
- Department of Natural Products Chemistry, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
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27
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Stocker BL, Kodar K, Wahi K, Foster AJ, Harper JL, Mori D, Yamasaki S, Timmer MSM. The effects of trehalose glycolipid presentation on cytokine production by GM-CSF macrophages. Glycoconj J 2019; 36:69-78. [DOI: 10.1007/s10719-018-09857-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 10/27/2022]
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28
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Matsumaru T, Ikeno R, Shuchi Y, Iwamatsu T, Tadokoro T, Yamasaki S, Fujimoto Y, Furukawa A, Maenaka K. Synthesis of glycerolipids containing simple linear acyl chains or aromatic rings and evaluation of their Mincle signaling activity. Chem Commun (Camb) 2019; 55:711-714. [DOI: 10.1039/c8cc07322h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesized glycerolipid derivatives possessing simple alkyl chains can stimulate a Mincle-mediated signaling assay relevant for the innate immune system.
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Affiliation(s)
- Takanori Matsumaru
- Faculty of Pharmaceutical Sciences
- Hokkaido University
- Sapporo
- Japan
- Faculty of Science and Technology
| | - Risa Ikeno
- Faculty of Pharmaceutical Sciences
- Hokkaido University
- Sapporo
- Japan
| | - Yusuke Shuchi
- Faculty of Pharmaceutical Sciences
- Hokkaido University
- Sapporo
- Japan
| | - Toshiki Iwamatsu
- Faculty of Pharmaceutical Sciences
- Hokkaido University
- Sapporo
- Japan
| | - Takashi Tadokoro
- Faculty of Pharmaceutical Sciences
- Hokkaido University
- Sapporo
- Japan
| | - Sho Yamasaki
- Department of Molecular Immunology Research Institute for Microbial Diseases, and Laboratory for Molecular Immunology
- Osaka University
- Osaka 565-0871
- Japan
| | - Yukari Fujimoto
- Faculty of Science and Technology
- Keio University
- Yokohama
- Japan
| | - Atsushi Furukawa
- Faculty of Pharmaceutical Sciences
- Hokkaido University
- Sapporo
- Japan
| | - Katsumi Maenaka
- Faculty of Pharmaceutical Sciences
- Hokkaido University
- Sapporo
- Japan
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29
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Ogawa S, Honda K, Tsubomura T, Totani K, Takahashi I, Hara S. Physicochemical characterization of 6-O-acyl trehalose fatty acid monoesters in desiccated system. Chem Phys Lipids 2018; 216:80-90. [DOI: 10.1016/j.chemphyslip.2018.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/10/2018] [Accepted: 09/19/2018] [Indexed: 10/28/2022]
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30
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Bird JH, Khan AA, Nishimura N, Yamasaki S, Timmer MSM, Stocker BL. Synthesis of Branched Trehalose Glycolipids and Their Mincle Agonist Activity. J Org Chem 2018; 83:7593-7605. [DOI: 10.1021/acs.joc.7b03269] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jessie H. Bird
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Ashna A. Khan
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Naoya Nishimura
- Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan
| | - Sho Yamasaki
- Division of Molecular Immunology, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
- Department of Molecular Immunology, Research Institute for Microbial Diseases, Osaka University, Suita 565-0871, Japan
| | - Mattie S. M. Timmer
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
| | - Bridget L. Stocker
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand
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