1. UMR 8601 CNRS, Université Paris V R. Descartes, 45 Rue des Saints-Pères, 75270 Paris Cedex 06, France, URA 1116 CNRS, Université Paris Sud-Orsay, Bat 430, 91105 Orsay Cedex, France, Department of Pharmaceutical Chemistry, Aristotelian University of Thessaloniki, Thessaloniki 54006, Greece, and Department of Immunology, Lerner Research Foundation, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, Ohio 44195