Takeaway
Naïve B-cell homeostasis differs from that of transitional/mature B cells and is selectively targeted by corticosteroids in neuromyelitis optica spectrum disorder (NMOSD) patients.
Why this matters
B cells are strongly associated with NMOSD (autoimmune disorders, characterized by optic nerve and/or spinal cord inflammation); however, their composition and outgrowth in these disorders is unclear.
Identification of B cells as potentially early biomarkers for NMOSD provides a positive basis for further, longitudinal study into their role in NMOSD pathophysiology, with a future aim to develop targeted therapies to enhance patient outcomes in this and related disorders.