RT Journal Article T1 Sera from Patients with NMOSD Reduce the Differentiation Capacity of Precursor Cells in the Central Nervous System A1 Gómez Pinedo, Ulises A1 García Ávila, Yolanda A1 Gallego Villarejo, Lucía A1 Matías-Guiu Guia, Jordi A. A1 Benito Martín, María Soledad A1 Esteban García, Noelia A1 Sanclemente Alamán, Inmaculada A1 Pytel, Vanesa A1 Moreno Jiménez, Lidia A1 Sancho Bielsa, Francisco A1 Vidorreta Ballesteros, Lucía A1 Montero Escribano, Paloma A1 Matías-Guiu Guía, Jorge AB Introduction: AQP4 (aquaporin-4)–immunoglobulin G (IgG)-mediated neuromyelitis optica spectrum disorder (NMOSD) is an inflammatory demyelinating disease that affects the central nervous system, particularly the spinal cord and optic nerve; remyelination capacity in neuromyelitis optica is yet to be determined, as is the role of AQP4–IgG in cell differentiation. Material and Methods: We included three groups—a group of patients with AQP4–IgG-positive neuromyelitis optica, a healthy group, and a sham group. We analyzed differentiation capacity in cultures of neurospheres from the subventricular zone of mice by adding serum at two different times: early and advanced stages of differentiation. We also analyzed differentiation into different cell lines. Results and Conclusions: The effect of sera from patients with NMOSD on precursor cells differs according to the degree of differentiation, and probably affects oligodendrocyte progenitor cells from NG2 cells to a lesser extent than cells from the subventricular zone; however, the resulting oligodendrocytes may be compromised in terms of maturation and possibly limited in their ability to generate myelin. Furthermore, these cells decrease in number with age. It is very unlikely that the use of drugs favoring the migration and differentiation of oligodendrocyte progenitor cells in multiple sclerosis would be effective in the context of neuromyelitis optica, but cell therapy with oligodendrocyte progenitor cells seems to be a potential alternative. PB MPDI SN 1422-0067 YR 2021 FD 2021-05-14 LK https://hdl.handle.net/20.500.14352/7051 UL https://hdl.handle.net/20.500.14352/7051 LA eng NO Gómez Pinedo, U., García Ávila, Y., Gallego Villarejo, L. et al. «Sera from Patients with NMOSD Reduce the Differentiation Capacity of Precursor Cells in the Central Nervous System». International Journal of Molecular Sciences, vol. 22, n.o 10, mayo de 2021, p. 5192. DOI.org (Crossref), https://doi.org/10.3390/ijms22105192. DS Docta Complutense RD 7 abr 2025