کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6285561 1296840 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Estrogen stimulates activity-regulated cytoskeleton associated protein (Arc) expression via the MAPK- and PI-3K-dependent pathways in SH-SY5Y cells
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Estrogen stimulates activity-regulated cytoskeleton associated protein (Arc) expression via the MAPK- and PI-3K-dependent pathways in SH-SY5Y cells
چکیده انگلیسی
Activity-regulated cytoskeleton associated protein (Arc) is known to be induced by synaptic plasticity following memory consolidation. Since estrogen has been shown to play an important role in synaptogenesis, a key aspect of the synaptic plasticity, we aimed to study the effects of estrogen on Arc expression in SH-SY5Y human neuroblastoma cells. Using quantitative real-time PCR, Western blot, and confocal immunocytochemistry techniques we found that estrogen markedly increased Arc mRNA and protein expression in SH-SY5Y cells. Estrogen-activated Arc expression was mediated via mitogen-activated protein kinase (MAPK) and phosphoinositide-3 kinase (PI-3K), but not protein kinase C (PKC) and Rho-associated kinase (ROCK), and in the estrogen receptor (ER)-dependent manner. Estrogen also significantly upregulated the dendritic spine scaffolding protein, postsynaptic density-95 (PSD-95), as well as expression of the presynaptic vesicle protein, synaptophysin. Our findings demonstrate the possible mechanisms of estrogen-induced synaptic plasticity, as well as memory consolidation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 452, Issue 2, 13 March 2009, Pages 130-135
نویسندگان
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