期刊
JOURNAL OF THEORETICAL BIOLOGY
卷 406, 期 -, 页码 17-30出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jtbi.2016.06.028
关键词
Migration; Proliferation; Structure formation; Myelination; Oligodendrocyte and oligodendrocyte progenitor cell
资金
- Australian Research Council [DP140100339]
- International Postgraduate Research Scholarship
- Australian Postgraduate Award
- Melbourne Neuroscience Institute Interdisciplinary Seed Funding Scheme
- NSF [DMS1562078, SES1556325]
- Division Of Mathematical Sciences
- Direct For Mathematical & Physical Scien [1562078] Funding Source: National Science Foundation
Oligodendrocytes are the myelin-producing cells of the central nervous system that are responsible for electrically insulating axons to speed the propagation of electrical impulses. A striking feature of oligodendrocyte development within white matter is that the cell bodies of many oligodendrocyte progenitor cells become organised into discrete linear arrays of three or more cells before they differentiate into myelin-producing oligodendrocytes. These linear arrays align parallel to the direction of the axons within white matter tracts and are believed to play an important role in the co-ordination of myelination. Guided by experimental data on the abundance and composition of linear arrays in the corpus callosum of the postnatal mouse brain, we construct discrete and continuous models of linear array generation to specifically investigate the relative influence of cell migration, proliferation, differentiation and death of oligodendroglia upon the genesis of linear arrays during early postnatal development. We demonstrate that only models that incorporate significant cell migration can replicate all of the experimental observations on number of arrays, number of cells in arrays and total cell count of oligodendroglia within a given area of the corpus callosum. These models are also necessary to accurately reflect experimental data on the abundance of linear arrays composed of oligodendrocytes that derive from progenitors of different clonal origins. (C) 2016 Elsevier Ltd. All rights reserved.
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