Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated tau.Targeting amyloid-beta plaques has b...Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated tau.Targeting amyloid-beta plaques has been a primary direction for developing Alzheimer’s disease treatments in the last decades.However,existing drugs targeting amyloid-beta plaques have not fully yielded the expected results in the clinic,necessitating the exploration of alternative therapeutic strategies.Increasing evidence unravels that astrocyte morphology and function alter in the brain of Alzheimer’s disease patients,with dysregulated astrocytic purinergic receptors,particularly the P2Y1 receptor,all of which constitute the pathophysiology of Alzheimer’s disease.These receptors are not only crucial for maintaining normal astrocyte function but are also highly implicated in neuroinflammation in Alzheimer’s disease.This review delves into recent insights into the association between P2Y1 receptor and Alzheimer’s disease to underscore the potential neuroprotective role of P2Y1 receptor in Alzheimer’s disease by mitigating neuroinflammation,thus offering promising avenues for developing drugs for Alzheimer’s disease and potentially contributing to the development of more effective treatments.展开更多
目的探讨遗传性癫痫大鼠(TRM)海马和颞叶皮质中神经肽Y(NPY)及其Y1受体(Y1R)的表达和分布。方法逆转录聚合酶链反应(RT-PCR)检测NPY和Y1R m RNA表达。ELISA试剂盒法检测TRM和Wistar大鼠海马和颞叶皮质中NPY浓度。Western blot检测Y1R蛋...目的探讨遗传性癫痫大鼠(TRM)海马和颞叶皮质中神经肽Y(NPY)及其Y1受体(Y1R)的表达和分布。方法逆转录聚合酶链反应(RT-PCR)检测NPY和Y1R m RNA表达。ELISA试剂盒法检测TRM和Wistar大鼠海马和颞叶皮质中NPY浓度。Western blot检测Y1R蛋白表达。免疫荧光双标记法分析TRM及Wistar大鼠海马CA1、CA3和DG区以及颞叶皮质中NPY与Y1R的分布和共定位。结果 ELISA和RT-PCR结果均显示,TRM海马和颞叶皮质中NPY表达明显上调,与Wistar大鼠比较差异有统计学意义(P<0.01)。Western blot结果证实,TRM海马中Y1R蛋白表达明显低于Wistar大鼠,而在颞叶皮质中显著高于Wistar大鼠。免疫荧光分析发现NPY与Y1R在TRM海马CA1、CA3区神经元细胞和DG区颗粒细胞以及颞叶皮质神经元细胞中分布广泛,并存在共定位且主要定位在细胞膜上。结论在TRM海马和颞叶皮质中,NPY及其Y1R表达出现异常变化,而这种异常表达可能与TRM癫痫发生机制有关。展开更多
文摘Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated tau.Targeting amyloid-beta plaques has been a primary direction for developing Alzheimer’s disease treatments in the last decades.However,existing drugs targeting amyloid-beta plaques have not fully yielded the expected results in the clinic,necessitating the exploration of alternative therapeutic strategies.Increasing evidence unravels that astrocyte morphology and function alter in the brain of Alzheimer’s disease patients,with dysregulated astrocytic purinergic receptors,particularly the P2Y1 receptor,all of which constitute the pathophysiology of Alzheimer’s disease.These receptors are not only crucial for maintaining normal astrocyte function but are also highly implicated in neuroinflammation in Alzheimer’s disease.This review delves into recent insights into the association between P2Y1 receptor and Alzheimer’s disease to underscore the potential neuroprotective role of P2Y1 receptor in Alzheimer’s disease by mitigating neuroinflammation,thus offering promising avenues for developing drugs for Alzheimer’s disease and potentially contributing to the development of more effective treatments.
