Elevated ISG15 reinforces RIG-I/MDA5-linked macrophage-microglia crosstalk during blood-brain barrier disruption in neuromyelitis optica spectrum disorder.
BACKGROUND Neuromyelitis optica spectrum disorder (NMOSD) is an AQP4-IgG-mediated astrocytopathy characterized by blood-brain barrier (BBB) injury and myeloid inflammation. We investigated whether interferon-stimulated gene 15 (ISG15) contributes to myeloid activation through RIG-I-like receptor (RLR) signaling. METH...