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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
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Structure-activity relationship studies of novel glycosphingolipids that stimulate natural killer T-cells. Biosci Biotechnol Biochem 2012; 76:1055-67. [PMID: 22790924 DOI: 10.1271/bbb.120072] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
KRN7000, an anticancer drug candidate developed by Kirin Brewery Co. in 1995, is an α-galactosyl ceramide. It is a ligand making a complex with CD1d protein, and it stimulates invariant natural killer T (NKT) cells, which are one of the lineages of immunocytes. NKT cells activated by recognition of the CD1d/KRN7000 complex with its invariant T-cell receptor (TCR) can induce both protective and regulatory immune responses. To determine the recognition and activation mechanisms of NKT cells and to develop drug candidates more effective than KRN7000, a large number of analogs of KRN7000 have been synthesized. Some of them show potent bioactivities and have the potential of being utilized as therapeutic agents. In this review, structure-activity relationship studies of novel glycolipids which stimulate NKT cells efficiently are summarized.
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Yu KOA, Im JS, Illarianov PA, Ndonye RM, Howell AR, Besra GS, Porcelli SA. Production and characterization of monoclonal antibodies against complexes of the NKT cell ligand alpha-galactosylceramide bound to mouse CD1d. J Immunol Methods 2007; 323:11-23. [PMID: 17442335 PMCID: PMC1939826 DOI: 10.1016/j.jim.2007.03.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2007] [Revised: 03/09/2007] [Accepted: 03/14/2007] [Indexed: 11/18/2022]
Abstract
The alpha-galactosylceramide (alpha-GalCer) known as KRN7000 remains the best studied ligand of the lipid-binding MHC class I-like protein CD1d. The KRN7000:CD1d complex is highly recognized by invariant natural killer T (iNKT) cells, an evolutionarily conserved subset of T lymphocytes that express an unusual semi-invariant T cell antigen receptor, and mediate a variety of proinflammatory and immunoregulatory functions. To facilitate the study of glycolipid antigen presentation to iNKT cells by CD1d, we undertook the production of mouse monoclonal antibodies (mAbs) specific for complexes of KRN7000 bound to mouse CD1d (mCD1d) proteins. Three such monoclonal antibodies were isolated that bound only to mCD1d proteins that were loaded with KRN7000 or closely-related forms of alpha-GalCer. These mAbs showed no reactivity with mCD1d proteins that were not loaded with alpha-GalCer, nor did they bind to complexes formed by loading mCD1d with the self-glycolipid and putative iNKT cell ligand isoglobotrihexosylceramide. These complex-specific monoclonal antibodies allow the direct detection and monitoring of complexes formed by the binding of KRN7000 and other alpha-GalCer analogues to mCD1d. The availability of these mAbs should facilitate a wide range of studies on the biology and potential clinical applications of CD1d-restricted iNKT cells.
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Affiliation(s)
- Karl O. A. Yu
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, U.S.A
| | - Jin S. Im
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, U.S.A
| | - Petr A. Illarianov
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Rachel M. Ndonye
- Department of Chemistry, University of Connecticut, Stoors, CT 06269-3060, U.S.A
| | - Amy R. Howell
- Department of Chemistry, University of Connecticut, Stoors, CT 06269-3060, U.S.A
| | - Gurdyal S. Besra
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
| | - Steven A. Porcelli
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, U.S.A
- * Corresponding author. Albert Einstein College of Medicine, 1300 Morris Park Avenue, Forchheimer 416. Bronx, NY 10461, U.S.A. Tel.: +1 718 430-3228; fax: +1 718 430-8711. E-mail address: (S.A. Porcelli)
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Sriram V, Du W, Gervay-Hague J, Brutkiewicz RR. Cell wall glycosphingolipids ofSphingomonas paucimobilisare CD1d-specific ligands for NKT cells. Eur J Immunol 2005; 35:1692-701. [PMID: 15915536 DOI: 10.1002/eji.200526157] [Citation(s) in RCA: 246] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The current consensus on characterization of NKT cells is based on their reactivity to the synthetic glycolipid, alpha-galactosylceramide (alpha-GalCer) in a CD1d-dependent manner. Because of the limited availability of alpha-GalCer, there is a constant search for CD1d-presented ligands that activate NKT cells. The alpha-anomericity of the carbohydrate is considered to be an important requisite for the CD1d-specific activation of NKT cells. The gram-negative, lipopolysaccharide-free bacterium Sphingomonas paucimobilis is known to contain glycosphingolipids (GSL) with alpha-anomeric sugars attached to the lipid chain. Here, we report that GSL extracted from this bacterium are able to stimulate NKT cells in a CD1d-specific manner. In addition, soluble CD1d-Ig dimers loaded with this lipid extract specifically bind to NKT cells (but not conventional T cells). Further studies on the S. paucimobilis GSL could potentially lead to other natural sources of CD1d-specific ligands useful for NKT cell analyses and aimed at identifying novel therapies for a variety of disease states.
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Affiliation(s)
- Venkataraman Sriram
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis 46202-5254, USA
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