Department

neurobiology

Document Type

Article

Abstract

Aims: We evaluate safety and efficacy of autologous bone marrow-derived mesenchymal stem cells (MSCs) as a potential treatment for neuromyelitis optica spectrum disorder (NMOSD). Methods: Fifteen patients with NMOSD were recruited. All patients received a single intravenous infusion of 1.0 × 10 8 autologous MSC within 3–4 generations derived from bone marrow. The primary endpoints of the study were efficacy as reflected by reduction in annualized relapse rates (ARRs) and inflammatory lesions observed by MRI. Results: At 12 months after MSC infusion, the mean ARR was reduced (1.1 vs. 0.3, P = 0.002), and the T2 or gadolinium-enhancing T1 lesions decreased in the optic nerve and spinal cord. Disability in these patients was reduced (EDSS, 4.3 vs. 4.9, P = 0.021; visual acuity, 0.4 vs. 0.5, P = 0.007). The patients had an increase in retinal nerve fiber layer thickness, optic nerve diameters and upper cervical cord area. We did not identify any serious MSC-related adverse events. At 24 months of MSC infusion, of 15 patients, 13 patients (87%) remained relapse-free, the mean ARR decreased to 0.1; the disability of 6 patients (40%) was improved, and the mean EDSS decreased to 4.0. Conclusions: This pilot trial demonstrates that MSC infusion is safe, reduces the relapse frequency, and mitigates neurological disability with neural structures in the optic nerve and spinal cord recover in patients with NMOSD. The beneficial effect of MSC infusion on NMOSD was maintained, at least to some degree, throughout a 2-year observational period.

Publication Date

8-1-2016

Publication Title

CNS Neuroscience and Therapeutics

ISSN

17555930

Volume

22

Issue

8

First Page

677

Last Page

685

Digital Object Identifier (DOI)

10.1111/cns.12559

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