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- Title
Origin of Oligodendrocytes in the Vertebrate Optic Nerve: A Review.
- Authors
Ono, Katsuhiko; Hirahara, Yukie; Gotoh, Hitoshi; Nomura, Tadashi; Takebayashi, Hirohide; Yamada, Hisao; Ikenaka, Kazuhiro
- Abstract
One of the unsolved problems in the research field of oligodendrocyte (OL) development has been the site(s) of origin of optic nerve OLs and its precursor cells (OPCs). It is generally accepted that OLs in the optic nerve are derived from the brain, and thus optic nerve OLs are immigrant cells. We previously demonstrated the brain origin of optic nerve OPCs in chick embryos. However, the site of optic nerve OPC origin has not been examined experimentally in developing rodents for the past two decades. We have recently reported that optic nerve OPCs in mice arise in the preoptic area by E12.5 and gradually migrate caudally and enter the optic nerve. These OPCs give rise to myelinating OLs in the optic nerve in the postnatal or adult stages. Surprisingly, there are species differences with respect to the origin of optic nerve OPCs between chicks and mice. Here, we summarize the site of OPC origin in the optic nerve based on our own previous and recent results, and discuss possible mechanisms underlying these species differences.
- Subjects
OLIGODENDROGLIA; OPTIC nerve; PREOPTIC area; HYPOTHALAMUS; BODY temperature regulation; MYELIN sheath; NEURODEGENERATION
- Publication
Neurochemical Research, 2018, Vol 43, Issue 1, p186
- ISSN
0364-3190
- Publication type
Article
- DOI
10.1007/s11064-017-2404-8