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Increased numbers of oligodendrocyte lineage cells in the optic nerves of cerebroside sulfotransferase knockout mice

Authors :
Kenji F. Tanaka
Akiko Hayashi
Kazuhiro Ikenaka
Hitoshi Kajigaya
Tomoko Ishibashi
Ayaka Suzuki
Hiroko Baba
Source :
Proceedings of the Japan Academy. Series B, Physical and Biological Sciences
Publication Year :
2011
Publisher :
Japan Academy, 2011.

Abstract

Sulfatide is a myelin glycolipid that functions in the formation of paranodal axo-glial junctions in vivo and in the regulation of oligodendrocyte differentiation in vitro. Cerebroside sulfotransferase (CST) catalyzes the production of two sulfated glycolipids, sulfatide and proligodendroblast antigen, in oligodendrocyte lineage cells. Recent studies have demonstrated significant increases in oligodendrocytes from the myelination stage through adulthood in brain and spinal cord under CST-deficient conditions. However, whether these result from excess migration or in situ proliferation during development is undetermined. In the present study, CST-deficient optic nerves were used to examine migration and proliferation of oligodendrocyte precursor cells (OPCs) under sulfated glycolipid-deficient conditions. In adults, more NG2-positive OPCs and fully differentiated cells were observed. In developing optic nerves, the number of cells at the leading edge of migration was similar in CST-deficient and wild-type mice. However, BrdU(+) proliferating OPCs were more abundant in CST-deficient mice. These results suggest that sulfated glycolipids may be involved in proliferation of OPCs in vivo.

Details

ISSN :
13492896 and 03862208
Volume :
87
Database :
OpenAIRE
Journal :
Proceedings of the Japan Academy, Series B
Accession number :
edsair.doi.dedup.....8801bfbb437426b673d0012ad582e19f
Full Text :
https://doi.org/10.2183/pjab.87.415