Snethen H, Love S, Scolding N. Disease-responsive neural precursor cells are present in multiple sclerosis lesions.
Regen Med 2009;
3:835-47. [PMID:
18947307 DOI:
10.2217/17460751.3.6.835]
[Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
AIMS
Spontaneous tissue repair occurs in multiple sclerosis (MS), but the origin of remyelinating cells remains obscure. Here we explore the hypothesis that endogenous neural precursors are involved in MS disease processes.
MATERIALS & METHODS
We studied postmortem brain and spinal cord samples from MS patients using immunocytochemical techniques.
RESULTS
We show that cells co-positive for nestin and musashi-1 are not merely present in lesions, but found in markedly increased numbers (up to fivefold). Small numbers of nestin-positive cells show direct evidence of proliferation, co-staining for Ki67; some also coexpress glial fibrillary acidic protein or oligodendrocyte progenitor markers (NG-2 or PDGF-alpha receptor), or the early neuronal marker doublecortin, consistent with transition from neural precursors.
CONCLUSIONS
These findings suggest that endogenous neural precursors react to disease processes in MS.
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