Focus on the Controversial Activation of Human iNKT Cells by 4-Deoxy Analogue of KRN7000
作者:Vivien Lacône、Julie Hunault、Muriel Pipelier、Virginie Blot、Thomas Lecourt、Jézabelle Rocher、Anne-Laure Turcot-Dubois、Séverine Marionneau、Jean-Yves Douillard、Monique Clément、Jacques Le Pendu、Marc Bonneville、Laurent Micouin、Didier Dubreuil
DOI:10.1021/jm900290r
日期:2009.8.13
4-Deoxy-alpha-GalCer analogues are considered weaker agonists than KRN7000 for the stimulation of human iNKT cells, but this remains strongly debated. In this work, we described a strategy toward 4-deoxy-alpha-GalCers with, as a key step, a metathesis reaction allowing sphingosine modifications from a single ethylenic alpha-galactoside precursor. The 4-deoxy-KRN7000 derivative 2, described here, induced potent cytokinic responses, comparable to those of KRN7000, both from human iNKT cells in vitro and from their murine counterpart in vivo.