CAMP and Guillain-Barre syndrome: Bladder cells were collected from WT and Camp−/− mice at 24 h postinfection with GBS and stained with antibodies for the following cell surface markers: CD45, CD11b, CD11c, majory histocompatibility complex class II (MHC-II), Ly6C, Ly6G, FcεRI, and c-kit.