Region-specific growth properties and trophic requirements of brain- and spinal cord-derived rat embryonic neural precursor cells

Neuroscience ◽  
2005 ◽  
Vol 135 (3) ◽  
pp. 851-862 ◽  
Author(s):  
S.-L. Fu ◽  
Z.-W. Ma ◽  
L. Yin ◽  
C. Iannotti ◽  
P.-H. Lu ◽  
...  
2021 ◽  
Vol 568 ◽  
pp. 103-109
Author(s):  
Xue Chen ◽  
Xin-Yao Yin ◽  
Ya-Yu Zhao ◽  
Chen-Chun Wang ◽  
Pan Du ◽  
...  

2018 ◽  
Vol 13 (4) ◽  
pp. 1101
Author(s):  
SeyedMojtaba Hosseini ◽  
Ali Sharafkhah ◽  
SeyyedMohyeddin Ziaee

2017 ◽  
Vol 35 (6) ◽  
pp. 583-599 ◽  
Author(s):  
S. Carelli ◽  
T. Giallongo ◽  
Z. Gombalova ◽  
D. Merli ◽  
A.M. Di Giulio ◽  
...  

2008 ◽  
Vol 86 (9) ◽  
pp. 1916-1926 ◽  
Author(s):  
C. Dromard ◽  
H. Guillon ◽  
V. Rigau ◽  
C. Ripoll ◽  
J.C. Sabourin ◽  
...  

2009 ◽  
Vol 7 (2) ◽  
pp. 85-96
Author(s):  
Joon-Ik Ahn ◽  
So-Young Kim ◽  
Moon-Jeong Ko ◽  
Hye-Joo Chung ◽  
Ho-Sang Jeong

2009 ◽  
Vol 10 (2) ◽  
pp. 171-176 ◽  
Author(s):  
Nicholas C. Bambakidis ◽  
Eric M. Horn ◽  
Peter Nakaji ◽  
Nicholas Theodore ◽  
Elizabeth Bless ◽  
...  

Object Sonic hedgehog (Shh) is a glycoprotein molecule that upregulates the transcription factor Gli1. The Shh protein plays a critical role in the proliferation of endogenous neural precursor cells when directly injected into the spinal cord after a spinal cord injury in adult rodents. Small-molecule agonists of the hedgehog (Hh) pathway were used in an attempt to reproduce these findings through intravenous administration. Methods The expression of Gli1 was measured in rat spinal cord after the intravenous administration of an Hh agonist. Ten adult rats received a moderate contusion and were treated with either an Hh agonist (10 mg/kg, intravenously) or vehicle (5 rodents per group) 1 hour and 4 days after injury. The rats were killed 5 days postinjury. Tissue samples were immediately placed in fixative. Samples were immunohistochemically stained for neural precursor cells, and these cells were counted. Results Systemic dosing with an Hh agonist significantly upregulated Gli1 expression in the spinal cord (p < 0.005). After spinal contusion, animals treated with the Hh agonist had significantly more nestin-positive neural precursor cells around the rim of the lesion cavity than in vehicle-treated controls (means ± SDs, 46.9 ± 12.9 vs 20.9 ± 8.3 cells/hpf, respectively, p < 0.005). There was no significant difference in the area of white matter injury between the groups. Conclusions An intravenous Hh agonist at doses that upregulate spinal cord Gli1 transcription also increases the population of neural precursor cells after spinal cord injury in adult rats. These data support previous findings based on injections of Shh protein directly into the spinal cord.


2013 ◽  
Vol 22 (9) ◽  
pp. 1613-1625 ◽  
Author(s):  
Misaki Aizawa-Kohama ◽  
Toshiki Endo ◽  
Masaaki Kitada ◽  
Shohei Wakao ◽  
Akira Sumiyoshi ◽  
...  

2008 ◽  
Vol 9 (4) ◽  
pp. 390-399 ◽  
Author(s):  
Birgit Neuhuber ◽  
Alissa L. Barshinger ◽  
Courtney Paul ◽  
Jed S. Shumsky ◽  
Takahiko Mitsui ◽  
...  

Object Using cellular transplants to treat spinal cord injury is a promising therapeutic strategy, but transplants grafted directly into the injury site can further damage the already compromised cord. To avoid additional trauma and to simplify translation to the clinic, it is advantageous to use less invasive delivery methods. Methods The authors compared the efficacy of intrathecal cell delivery at the lumbar region (lumbar puncture [LP]) to direct injection into a thoracic contusion injury using a mixed population of lineage-restricted neural precursor cells. Results Direct injection resulted in a higher volume of neural precursor cells located throughout the injury site, whereas fewer LP-delivered cells accumulated at the dorsal aspect of the injured cord. Both grafting methods were neuroprotective, resulting in reduction of injury size and greater tissue sparing compared with controls. Functional recovery was evaluated by assessing motor and bladder function. Animals that received cells via direct injection performed significantly better in the open-field locomotor test than did operated controls, while LP-treated animals showed intermediate recovery of function that did not differ statistically from that of either operated controls or directly injected animals. Bladder function, however, was significantly improved in both directly injected and LP-treated animals. Conclusion Grafting of stem cells via LP resulted in localized accumulation of cells at the injury site, neuroprotection, and modest recovery of function. Further optimization of the LP procedure by increasing the number of cells that are delivered and determining the optimal delivery schedule may further improve recovery to levels comparable to direct injection.


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