Movie S1.

Intravital 2-PM imaging of TMOG-GFP cells in the leptomeningeal blood stream before EAE onset. In vivo recording of TMOG-GFP cells (white circles) in T-/B-MOG (Left) and T-MOG (Right) mice at d8 p.i. Green, TMOG-GFP cells; red, Texas Red-labeled vessels. (Scale bar: 50 µm.) Time scale: h:min:s.