eLife Assessment
This important study identifies the cribriform plate as a key neuroimmune interface that shapes myeloid cell responses during neuroinflammation. Using imaging, flow cytometry, and single-cell approaches in a mouse model of EAE, the authors provide convincing evidence that dendritic cells and macrophages accumulate in PDPN-rich niches and have transcriptional features consistent with tolerogenic or immunosuppressive states. The work is technically strong and novel, and future studies will be needed to define the functional consequences of these myeloid cell states in autoimmunity.