Ciliary neurotrophic factor overexpression in neural progenitor cells (ST14A) increases proliferation, metabolic activity, and resistance to stress during differentiation

2002 ◽  
Vol 71 (2) ◽  
pp. 228-236 ◽  
Author(s):  
Sabine Weinelt ◽  
Sabine Peters ◽  
Peter Bauer ◽  
Eilhard Mix ◽  
Stefan J.P. Haas ◽  
...  
2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
X. Joann You ◽  
Ping Gu ◽  
Jinmei Wang ◽  
Tianran Song ◽  
Jing Yang ◽  
...  

Work has shown that stem cell transplantation can rescue or replace neurons in models of retinal degenerative disease. Neural progenitor cells (NPCs) modified to overexpress neurotrophic factors are one means of providing sustained delivery of therapeutic gene products in vivo. To develop a nonrodent animal model of this therapeutic strategy, we previously derived NPCs from the fetal cat brain (cNPCs). Here we use bicistronic feline lentiviral vectors to transduce cNPCs with glial cell-derived neurotrophic factor (GDNF) together with a GFP reporter gene. Transduction efficacy is assessed, together with transgene expression level and stability during induction of cellular differentiation, together with the influence of GDNF transduction on growth and gene expression profile. We show that GDNF overexpressing cNPCs expand in vitro, coexpress GFP, and secrete high levels of GDNF protein—before and after differentiation—all qualities advantageous for use as a cell-based approach in feline models of neural degenerative disease.


2010 ◽  
Vol 88 (15) ◽  
pp. 3222-3232 ◽  
Author(s):  
Amber Young ◽  
Kristin S. Assey ◽  
Carla D. Sturkie ◽  
Franklin D. West ◽  
David W. Machacek ◽  
...  

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