scholarly journals Notch-regulated oligodendrocyte specification from radial glia in the spinal cord of zebrafish embryos

2008 ◽  
Vol 237 (8) ◽  
pp. 2081-2089 ◽  
Author(s):  
Ho Kim ◽  
Jimann Shin ◽  
Suhyun Kim ◽  
Justin Poling ◽  
Hae-Chul Park ◽  
...  
Author(s):  
V. Kriho ◽  
H.-Y. Yang ◽  
C.-M. Lue ◽  
N. Lieska ◽  
G. D. Pappas

Radial glia have been classically defined as those early glial cells that radially span their thin processes from the ventricular to the pial surfaces in the developing central nervous system. These radial glia constitute a transient cell population, disappearing, for the most part, by the end of the period of neuronal migration. Traditionally, it has been difficult to definitively identify these cells because the principal criteria available were morphologic only.Using immunofluorescence microscopy, we have previously defined a phenotype for radial glia in rat spinal cord based upon the sequential expression of vimentin, glial fibrillary acidic protein and an intermediate filament-associated protein, IFAP-70/280kD. We report here the application of another intermediate filament-associated protein, IFAP-300kD, originally identified in BHK-21 cells, to the immunofluorescence study of radial glia in the developing rat spinal cord.Results showed that IFAP-300kD appeared very early in rat spinal cord development. In fact by embryonic day 13, IFAP-300kD immunoreactivity was already at its peak and was observed in most of the radial glia which span the spinal cord from the ventricular to the subpial surfaces (Fig. 1). Interestingly, from this time, IFAP-300kD immunoreactivity diminished rapidly in a dorsal to ventral manner, so that by embryonic day 16 it was detectable only in the maturing macroglial cells in the marginal zone of the spinal cord and the dorsal median septum (Fig. 2). By birth, the spinal cord was essentially immuno-negative for this IFAP. Thus, IFAP-300kD appears to be another differentiation marker available for future studies of gliogenesis, especially for the early stages of radial glia differentiation.


1997 ◽  
Vol 17 (23) ◽  
pp. 9212-9219 ◽  
Author(s):  
Takashi Shibata ◽  
Keiko Yamada ◽  
Masahiko Watanabe ◽  
Kazuhiro Ikenaka ◽  
Keiji Wada ◽  
...  

2005 ◽  
Vol 193 (2) ◽  
pp. 394-410 ◽  
Author(s):  
Koichi Hasegawa ◽  
Yu-Wen Chang ◽  
Hedong Li ◽  
Yana Berlin ◽  
Osamu Ikeda ◽  
...  

2002 ◽  
Vol 454 (3) ◽  
pp. 263-271 ◽  
Author(s):  
Siobhan S. McMahon ◽  
Kieran W. McDermott

Glia ◽  
2016 ◽  
Vol 64 (7) ◽  
pp. 1138-1153 ◽  
Author(s):  
Cody J. Smith ◽  
Kimberly Johnson ◽  
Taylor G. Welsh ◽  
Michael J. F. Barresi ◽  
Sarah Kucenas

Author(s):  
Tatsuya Yuikawa ◽  
Masaaki Ikeda ◽  
Sachiko Tsuda ◽  
Shinji Saito ◽  
Kyo Yamasu

2019 ◽  
Vol 9 (6) ◽  
pp. 124 ◽  
Author(s):  
Walter J. Jermakowicz ◽  
Stephanie S. Sloley ◽  
Lia Dan ◽  
Alberto Vitores ◽  
Melissa M. Carballosa-Gautam ◽  
...  

Spinal cord injury (SCI) is a major cause of disability and pain, but little progress has been made in its clinical management. Low-frequency electrical stimulation (LFS) of various anti-nociceptive targets improves outcomes after SCI, including motor recovery and mechanical allodynia. However, the mechanisms of these beneficial effects are incompletely delineated and probably multiple. Our aim was to explore near-term effects of LFS in the hindbrain’s nucleus raphe magnus (NRM) on cellular proliferation in a rat SCI model. Starting 24 h after incomplete contusional SCI at C5, intermittent LFS at 8 Hz was delivered wirelessly to NRM. Controls were given inactive stimulators. At 48 h, 5-bromodeoxyuridine (BrdU) was administered and, at 72 h, spinal cords were extracted and immunostained for various immune and neuroglial progenitor markers and BrdU at the level of the lesion and proximally and distally. LFS altered cell marker counts predominantly at the dorsal injury site. BrdU cell counts were decreased. Individually and in combination with BrdU, there were reductions in CD68 (monocytes) and Sox2 (immature neural precursors) and increases in Blbp (radial glia) expression. CD68-positive cells showed increased co-staining with iNOS. No differences in the expression of GFAP (glia) and NG2 (oligodendrocytes) or in GFAP cell morphology were found. In conclusion, our work shows that LFS of NRM in subacute SCI influences the proliferation of cell types implicated in inflammation and repair, thus providing mechanistic insight into deep brain stimulation as a neuromodulatory treatment for this devastating pathology.


2016 ◽  
Vol 108 (12) ◽  
pp. 357-377 ◽  
Author(s):  
Chih-Wei Zeng ◽  
Yasuhiro Kamei ◽  
Chih-Tien Wang ◽  
Huai-Jen Tsai

2006 ◽  
Vol 55 (3) ◽  
pp. 209-222 ◽  
Author(s):  
Iris Kulbatski ◽  
Andrea J. Mothe ◽  
Armand Keating ◽  
Yoji Hakamata ◽  
Eiji Kobayashi ◽  
...  

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