1
|
Mondal S, Tseng CJ, Tan JJY, Lin DY, Lin HY, Weng JH, Lin CH, Mong KKT. Tunable Strategy for the Asymmetric Synthesis of Sulfoglycolipids from Mycobacterium tuberculosis To Elucidate the Structure and Immunomodulatory Property Relationships. Angew Chem Int Ed Engl 2023; 62:e202212514. [PMID: 36349422 DOI: 10.1002/anie.202212514] [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: 08/24/2022] [Indexed: 11/11/2022]
Abstract
We developed a versatile asymmetric strategy to synthesize different classes of sulfoglycolipids (SGLs) from Mycobacterium tuberculosis. The strategy features the use of asymmetrically protected trehaloses, which were acquired from the glycosylation of TMS α-glucosyl acceptors with benzylidene-protected thioglucosyl donors. The positions of the protecting groups at the donors and acceptors can be fine-tuned to obtain different protecting-group patterns, which is crucial for regioselective acylation and sulfation. In addition, a chemoenzymatic strategy was established to prepare the polymethylated fatty acid building blocks. The strategy employs inexpensive lipase as a desymmetrization agent in the preparation of the starting substrate and readily available chiral oxazolidinone as a chirality-controlling agent in the construction of the polymethylated fatty acids. A subsequent investigation on the immunomodulatory properties of each class of SGLs showed how the structures of SGLs impact the host innate immunity response.
Collapse
Affiliation(s)
- Soumik Mondal
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Chieh-Jen Tseng
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Janet Jia-Yin Tan
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Ding-Yuan Lin
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Hsien-Ya Lin
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Jui-Hsia Weng
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Chun-Hung Lin
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan.,Graduate Institute of Biotechnology and Biotechnology Center, National Chung-Hsing University, Taichung, 40227, Taiwan.,Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, Taipei, 10617, Taiwan
| | - Kwok-Kong Tony Mong
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| |
Collapse
|
2
|
Gatin‐Fraudet B, Pucher M, Le Saux T, Doisneau G, Bourdreux Y, Jullien L, Vauzeilles B, Guianvarc'h D, Urban D. Hydrogen Peroxide‐Responsive Triggers Based on Borinic Acids: Molecular Insights into the Control of Oxidative Rearrangement. Chemistry 2022; 28:e202201543. [DOI: 10.1002/chem.202201543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Indexed: 01/06/2023]
Affiliation(s)
- Blaise Gatin‐Fraudet
- Université Paris-Saclay, CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182 91405 Orsay France
- Université Paris-Saclay, CNRS Institut de Chimie des Substances Naturelles, UPR 2301 91198 Gif-sur-Yvette France
| | - Mathilde Pucher
- Université Paris-Saclay, CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182 91405 Orsay France
| | - Thomas Le Saux
- PASTEUR, Département de chimie École Normale Supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
| | - Gilles Doisneau
- Université Paris-Saclay, CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182 91405 Orsay France
| | - Yann Bourdreux
- Université Paris-Saclay, CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182 91405 Orsay France
| | - Ludovic Jullien
- PASTEUR, Département de chimie École Normale Supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
| | - Boris Vauzeilles
- Université Paris-Saclay, CNRS Institut de Chimie des Substances Naturelles, UPR 2301 91198 Gif-sur-Yvette France
| | - Dominique Guianvarc'h
- Université Paris-Saclay, CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182 91405 Orsay France
| | - Dominique Urban
- Université Paris-Saclay, CNRS Institut de Chimie Moléculaire et des Matériaux d'Orsay, UMR CNRS 8182 91405 Orsay France
| |
Collapse
|
3
|
Strobl S, Hofbauer K, Heine H, Zamyatina A. Lipid A Mimetics Based on Unnatural Disaccharide Scaffold as Potent TLR4 Agonists for Prospective Immunotherapeutics and Adjuvants. Chemistry 2022; 28:e202200547. [PMID: 35439332 PMCID: PMC9325513 DOI: 10.1002/chem.202200547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Indexed: 11/11/2022]
Abstract
TLR4 is a key pattern recognition receptor that can sense pathogen- and danger- associated molecular patterns to activate the downstream signaling pathways which results in the upregulation of transcription factors and expression of interferons and cytokines to mediate protective pro-inflammatory responses involved in immune defense. Bacterial lipid A is the primary TLR4 ligand with very complex, species-specific, and barely predictable structure-activity relationships. Given that therapeutic targeting of TLR4 is an emerging tool for management of a variety of human diseases, the development of novel TLR4 activating biomolecules other than lipid A is of vast importance. We report on design, chemical synthesis and immunobiology of novel glycan-based lipid A-mimicking molecules that can activate human and murine TLR4-mediated signaling with picomolar affinity. Exploiting crystal structure - based design we have created novel disaccharide lipid A mimetics (DLAMs) where the inherently flexible β(1→6)-linked diglucosamine backbone of lipid A is exchanged with a conformationally restrained non-reducing βGlcN(1↔1')βGlcN scaffold. Excellent stereoselectivity in a challenging β,β-1,1' glycosylation was achieved by tuning the reactivities of donor and acceptor molecules using protective group manipulation strategy. Divergent streamlined synthesis of β,β-1,1'-linked diglucosamine-derived glycolipids entailing multiple long-chain (R)-3- acyloxyacyl residues and up two three phosphate groups was developed. Specific 3D-molecular shape and conformational rigidity of unnatural β,β-1,1'-linked diglucosamine combined with carefully optimized phosphorylation and acylation pattern ensured efficient induction of the TLR4-mediated signaling in a species-independent manner.
Collapse
Affiliation(s)
- Sebastian Strobl
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
| | - Karin Hofbauer
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
| | - Holger Heine
- Research Group Innate ImmunityResearch Center Borstel-Leibniz Lung Center, Airway Research Center North (ARCN), German Center for Lung Disease (DZL)Parkallee 22Borstel23845Germany
| | - Alla Zamyatina
- Department of ChemistryUniversity of Natural Resources and Life SciencesMuthgasse 18Vienna1190Austria
| |
Collapse
|