Elevated C-X-C motif ligand 13 and B-cell-activating factor levels in neuromyelitis optica during remission.

During remission, serum CXCL13 and BAFF levels have not decreased to normal in NMO patients, and B-cell-related autoimmune response persists. Immunosuppressive therapy decreased serum BAFF levels, but did not affect CXCL13 expression.