1. Unité Macrophages et Développement de l'Immunité, Centre National de la Recherche Scientifique-Unité de Recherche Associée 2578, Institut Pasteur, Paris, France;
2. Huntsman Cancer Institute, University of Utah, Salt Lake City;
3. Department of Cell Biology, Faculty of Biology, Complutense University, Madrid, Spain; and
4. Department of Immunology and Host Defenses, Ehime University School of Medicine, Shigenobu, Ehime, Japan