期刊
MOLECULAR AND CELLULAR NEUROSCIENCE
卷 31, 期 4, 页码 748-758出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.mcn.2006.01.004
关键词
subventricular zone; graft; migration; oligodendrocyte; myelin repair; white matter
Adult neural stem cells in the subventricular zone (SVZ) produce neuronal progenitors that migrate along the rostra[ migratory stream (RMS) and generate olfactory interneurons. Here, we evaluate the migratory potential of SVZ cells outside the RMS and their capacity to generate oligodendrocytes in the adult brain. We show that SVZ cells migrate long distances when grafted into white matter tracts such as the cingulum (Ci) and corpus callosum (CC). Furthermore, 22 days postinjection, most present morphologic and phenotypic characteristics of cells committed to the oligodendrocyte lineage. Cells grafted in shiverer CC and Ci become MBP-positive oligodendrocytes, abundant, myelinating these white matter tracts. Type A progenitors are involved in this myelinating process. Altogether, this study reveals the migrating and myelinating potential of SVZ cells in a new environmental context. Therefore, SVZ cells stand as interesting candidates for the development of novel therapeutic strategies for demyelinating diseases. (c) 2006 Elsevier Inc. All rights reserved.
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