Lipoproteins act as vehicles for lipid antigen delivery and activation of invariant natural killer T cells by Engelen, SE, Ververs, FA, Markovska, A, Lagerholm, BC, Kraaijenhof, JM, Yousif, LI, Zurke, Y-X, Gulersonmez, CM, Kooijman, S, Goddard, M, van Eijkeren, RJ, Jervis, PJ, Besra, GS, Haitjema, S, Asselbergs, FW, Kalkhoven, E, Ploegh, HL, Boes, M, Cerundolo, V, Hovingh, GK, Salio, M, Stigter, EC, Rensen, PC, Monaco, C, Schipper, HS