scholarly journals Levels of glial cell line‐derived neurotrophic factor are decreased, but fibroblast growth factor 2 and cerebral dopamine neurotrophic factor are increased in the hippocampus in Parkinson’s disease

2019 ◽  
Vol 29 (6) ◽  
pp. 813-825 ◽  
Author(s):  
Sophie Virachit ◽  
Kathryn J. Mathews ◽  
Veronica Cottam ◽  
Eryn Werry ◽  
Emilia Galli ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Cell Line ◽  
Glial Cell ◽  
Neurotrophic Factor ◽  
Fibroblast Growth Factor 2 ◽  
Fibroblast Growth ◽  
Cerebral Dopamine Neurotrophic Factor ◽  
Cerebral Dopamine

Effects of glial cell line-derived neurotrophic factor, fibroblast growth factor 2 and epidermal growth factor on proliferation and the expression of some genes in buffalo (Bubalus bubalis) spermatogonial cells

2013 ◽  
Vol 25 (8) ◽  
pp. 1149 ◽  
Author(s):  
Prashant H. Kadam ◽  
Sushila Kala ◽  
Himanshu Agrawal ◽  
Karn P. Singh ◽  
Manoj K. Singh ◽  
...  
Keyword(s):  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Fibroblast Growth Factor ◽  
Cell Line ◽  
Glial Cell ◽  
Sertoli Cell ◽  
Neurotrophic Factor ◽  
Feeder Layer ◽  
Fibroblast Growth ◽  
Epidermal Growth

The present study evaluated the effects of glial cell line-derived neurotrophic factor (GDNF), fibroblast growth factor (FGF) 2 and epidermal growth factor (EGF) on proliferation and the expression of some genes in spermatogonial cells. Spermatogonial cells were isolated from prepubertal buffalo testes and enriched by double enzyme treatment, filtration through 80- and 60-μm nylon mesh filters, differential plating on lectin-coated dishes and Percoll density gradient centrifugation. Cells were then cultured on a buffalo Sertoli cell feeder layer and formed colonies within 15–18 days. The colonies were found to predominantly contain undifferentiated Type A spermatogonia because they bound Dolichos biflorus agglutinin and did not express c-kit. The colonies expressed alkaline phosphatase, NANOG, octamer-binding transcription factor (OCT)-4 and tumour rejection antigen (TRA)-1–60. Cells were subcultured for 15 days, with or without growth factor supplementation. After 15 days, colony area and the relative mRNA abundance of PLZF were higher (P < 0.05) following supplementation with 40 ng mL–1 GDNF + 10 ng mL–1 EGF + 10 ng mL–1 FGF2 than with the same concentrations of GDNF alone or GDNF plus either EGF or FGF2. Expression of TAF4B was higher (P < 0.05) in the presence of FGF2, whereas the expression of THY1 was not affected by growth factor supplementation. In the Sertoli cell feeder layer, EGF and FGF2 decreased (P < 0.05), whereas GDNF increased (P < 0.05), the relative mRNA abundance of ETV5 compared with control. In conclusion, an in vitro culture system that incorporates various growth factors was developed for the short-term culture of buffalo spermatogonia.

scholarly journals Localized delivery of fibroblast growth factor–2 and brain-derived neurotrophic factor reduces spontaneous seizures in an epilepsy model

2009 ◽  
Vol 106 (17) ◽  
pp. 7191-7196 ◽  
Author(s):  
Beatrice Paradiso ◽  
Peggy Marconi ◽  
Silvia Zucchini ◽  
Elena Berto ◽  
Anna Binaschi ◽  
...  
Keyword(s):  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Neurotrophic Factor ◽  
Viral Vectors ◽  
Neuronal Damage ◽  
Brain Derived Neurotrophic Factor ◽  
Fibroblast Growth Factor 2 ◽  
Fibroblast Growth ◽  
Damage Limitation

A loss of neurons is observed in the hippocampus of many patients with epilepsies of temporal lobe origin. It has been hypothesized that damage limitation or repair, for example using neurotrophic factors (NTFs), may prevent the transformation of a normal tissue into epileptic (epileptogenesis). Here, we used viral vectors to locally supplement two NTFs, fibroblast growth factor–2 (FGF-2) and brain-derived neurotrophic factor (BDNF), when epileptogenic damage was already in place. These vectors were first characterized in vitro, where they increased proliferation of neural progenitors and favored their differentiation into neurons, and they were then tested in a model of status epilepticus-induced neurodegeneration and epileptogenesis. When injected in a lesioned hippocampus, FGF-2/BDNF expressing vectors increased neuronogenesis, embanked neuronal damage, and reduced epileptogenesis. It is concluded that reduction of damage reduces epileptogenesis and that supplementing specific NTFs in lesion areas represents a new approach to the therapy of neuronal damage and of its consequences.

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