Nitric oxide/cyclic guanosine monophosphate-mediated growth cone collapse of dentate granule cells
| Autor: | Ryuji X. Yamada, Yuji Ikegaya, Norio Matsuki |
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| Rok vydání: | 2006 |
| Předmět: |
Time Factors
Phalloidine Growth Cones Biology Nitric Oxide chemistry.chemical_compound medicine Biological neural network Animals Cyclic adenosine monophosphate Drug Interactions Nitric Oxide Donors Axon Enzyme Inhibitors Rats Wistar Growth cone Cyclic guanosine monophosphate Cyclic GMP Cells Cultured Neurons Dose-Response Relationship Drug General Neuroscience Dentate gyrus Penicillamine Antibodies Monoclonal Adenosine Immunohistochemistry Rats medicine.anatomical_structure nervous system Biochemistry chemistry Animals Newborn Dentate Gyrus Biophysics Axon guidance medicine.drug |
| Zdroj: | Neuroreport. 17(6) |
| ISSN: | 0959-4965 |
| Popis: | Controlling axon and dendrite elongation is critical in developing precise neural circuits. Using isolated cultures of dentate granule neurons, we established an experimental system that can simultaneously monitor the behaviors of axonal and dendritic outgrowth. Our previous study shows that axons and dendrites respond differentially to manipulated cyclic adenosine monophosphate signaling, but we report here that cyclic guanosine monophosphate exerts similar effects on axons and dendrites; that is, both axonal and dendritic growth cones collapsed after activation of cyclic guanosine monophosphate signaling. In addition, nitric oxide donor-induced growth-cone collapse was prevented by the inhibition of cyclic guanosine monophosphate signaling, and this effect again did not differ between axons and dendrites. Thus, unlike cyclic adenosine monophosphate, cyclic guanosine monophosphate modulates extending axons and dendrites in a similar manner. |
| Databáze: | OpenAIRE |
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