D-AP5对氟砷联合染毒原代培养海马神经元突触相关蛋白表达的影响
发布时间:2019-04-02 02:06
【摘要】:[目的]探讨谷氨酸NMDA受体拮抗剂D-2-氨基-5-磷酰基戊酸(D-AP5)对氟砷联合染毒后原代海马神经元突触相关蛋白表达的影响。[方法]将体外培养的海马神经元分为4组,空白对照组、氟砷联合染毒组(0.4μg/m L氟化钠+0.1μg/m L亚砷酸钠)、D-AP5组(25μmol/L D-AP5)和D-AP5+氟砷联合染毒组(0.4μg/m L氟化钠+0.1μg/m L亚砷酸钠+25μmol/L D-AP5)。各组海马神经元置于37℃、含有体积分数5%CO_2培养箱中培养24 h。把培养好的各组海马神经元用CCK8检测活性,用蛋白免疫印迹法检测海马神经元中NR2B、SYN及GAP43突触相关蛋白的表达水平。[结果]与空白对照组[(100.00±0.00)%]比较,氟砷联合染毒组[(75.81±6.27)%]、D-AP5+氟砷联合染毒组[(81.58±5.20)%]的细胞存活率均明显降低(P0.05);与氟砷联合染毒组[(75.81±6.27)%]比较,D-AP5组[(98.78±3.53)%]、D-AP5+氟砷联合染毒组[(81.58±5.20)%]海马神经元存活率均明显升高(P0.05)。氟砷联合染毒组(0.425±0.06)、D-AP5组(0.469±0.03)、D-AP5+氟砷联合染毒组(0.354±0.04)的NR2B相对表达量较空白对照组(0.572±0.05)均有所下降(P0.05),D-AP5+氟砷联合染毒组(0.354±0.04)受体蛋白NR2B表达较氟砷联合染毒组(0.425±0.06)降低(P0.05);氟砷联合染毒组与D-AP5+氟砷联合染毒组的SYN和GAP43相对表达量均较空白对照组低(P0.05)。而D-AP5组与D-AP5+氟砷联合染毒组的SYN和GAP43表达较氟砷联合染毒组均升高(P0.05)。[结论]氟砷联合染毒能够下调突触相关蛋白SYN及GAP-43表达水平,谷氨酸NMDA受体拮抗剂D-AP5可以抑制氟砷联合染毒对海马神经元突触相关蛋白表达的影响。
[Abstract]:[aim] to investigate the effect of glutamate NMDA receptor antagonist (D-AP5) on the expression of synaptic-associated proteins in primary hippocampal neurons exposed to fluoride and arsenic. [methods] Hippocampal neurons cultured in vitro were divided into 4 groups: blank control group, fluoride-arsenic combined exposure group (0.4 渭 g / mL sodium fluoride 0.1 渭 g / mL sodium arsenite). D-AP5 group (25 渭 mol / L D-AP5) and D-AP5 group (0.4 渭 g / mL sodium fluoride 0.1 渭 g / mL sodium arsenite 25 渭 mol / L D-AP5). The hippocampal neurons in each group were cultured at 37 鈩,
本文编号:2452131
[Abstract]:[aim] to investigate the effect of glutamate NMDA receptor antagonist (D-AP5) on the expression of synaptic-associated proteins in primary hippocampal neurons exposed to fluoride and arsenic. [methods] Hippocampal neurons cultured in vitro were divided into 4 groups: blank control group, fluoride-arsenic combined exposure group (0.4 渭 g / mL sodium fluoride 0.1 渭 g / mL sodium arsenite). D-AP5 group (25 渭 mol / L D-AP5) and D-AP5 group (0.4 渭 g / mL sodium fluoride 0.1 渭 g / mL sodium arsenite 25 渭 mol / L D-AP5). The hippocampal neurons in each group were cultured at 37 鈩,
本文编号:2452131
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