作者: Takayuki Harada , Chikako Harada , Shinichi Kohsaka , Etsuko Wada , Kazuhiko Yoshida
DOI: 10.1523/JNEUROSCI.22-21-09228.2002
关键词: Biology 、 Neurotrophin 、 Photoreceptor cell 、 Neuroscience 、 Nerve growth factor 、 GDNF family of ligands 、 Ciliary neurotrophic factor 、 Glial cell line-derived neurotrophic factor 、 Muller glia 、 Neurotrophic factors
摘要: Activation of microglia commonly occurs in response to a wide variety pathological stimuli including trauma, axotomy, ischemia, and degeneration the CNS. In retina, prolonged or high-intensity exposure visible light leads photoreceptor cell apoptosis. such light-reared we found that activated invade degenerating layer alter expression neurotrophic factors as nerve growth factor (NGF), ciliary (CNTF), glial line-derived (GDNF). Because these modulate secondary trophic Muller cells, microglia-Muller glia interaction may contribute protection photoreceptors increase present study, demonstrate possibility functional glia-glia interactions constitute key mechanism by which microglia-derived NGF, brain-derived (BDNF), CNTF indirectly influence survival, although receptors for are absent from photoreceptors, modulating basic fibroblast (bFGF) GDNF production release glia. These observations suggest regulate glia-photoreceptor network serves factor-controlling system during retinal degeneration.