کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8516365 | 1556575 | 2018 | 42 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ras inhibitor S-trans, trans-farnesylthiosalicylic acid enhances spatial memory and hippocampal long-term potentiation via up-regulation of NMDA receptor
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
CREBHFSNMDARMWMIPIaCSFFTSCaMKIIPPRGRFinter-pulse intervalERKFPPPPFGGPPPBSGTPaseDMSO - DMSOEPSC - EPSCoREPSP - epspiMAPK - MAPKNMDA receptor - NMDA گیرندهanalyses of variance - تجزیه و تحلیل واریانسANOVA - تحلیل واریانس Analysis of variancepaired-pulse facilitation - تسکین زوایای پالسیlong-term potentiation - تقویت درازمدتLTP - تقویت طولانی مدت یا LTP excitatory postsynaptic current - جریان پستیینپتیک تحریک کنندهstandard error - خطای استانداردDimethyl sulfoxide - دیمتیل سولفواکسیدSpatial cognition - شناخت فضاییfarnesyl pyrophosphate - فارسیل پیرو فسفاتMorris water maze - ماز آب آب موریسartificial cerebral spinal fluid - مایع مغزی نخاعی مغزیPhosphate-buffered saline - محلول نمک فسفات با خاصیت بافریpaired-pulse ratio - نسبت پالس زوجHippocampus - هیپوکامپ Long-term potentiation (LTP) - پتانسیل بلند مدت (LTP)excitatory postsynaptic potential - پتانسیل پست سیناپتی هیجان انگیزGTP-binding protein - پروتئین اتصال GTPcAMP response element-binding protein - پروتئین واکنش القا کننده واکنش cAMPmitogen-activated protein kinase - پروتئین کیناز فعال با mitogenextracellular signal-regulated kinase - کیناز تنظیم شده سیگنال خارج سلولی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Statins by reducing farnesyl-pyrophosphate or farnesyl transferase inhibitors have been demonstrated to enhance spatial memory and long-term potentiation (LTP). The objective of this study was to investigate effects of the synthetic Ras inhibitor S-trans, trans-farnesylthiosalicylic acid (FTS) on spatial cognitive function in adult mice, synaptic plasticity in hippocampal CA1 regions, and NMDA receptor (NMDAr) activity of pyramidal cells. Here, we show that administering FTS (5â¯mg/kg, i.p.) enhanced spatial cognitive performance, as assessed via Morris water maze and Y-maze tests. Treating hippocampal slices with FTS (5â¯Î¼M) for 2â¯h enhanced selectively NMDAr-dependent LTP without changing the synaptic properties. In comparison with the controls, the FTS-treated slices showed increases in the amplitude of NMDA-evoked currents (INMDA) and the phosphorylation of NMDAr GluN2A/GluN2B subunits and Src. The Src inhibitor PP2 blocked the enhancing effects of FTS on the activity and phosphorylation of NMDAr. In FTS-treated slices, basal levels of CaMKII, ERK2 and CREB phosphorylation did not differ significantly from those of controls; however, high-frequency stimulation-induced increases in CaMKII, ERK2 and CREB phosphorylation were more significant than in the controls, which were sensitive to PP2 and NMDAr antagonist MK801. Furthermore, the phosphorylation of AMPA receptor GluR1 during LTP was higher in FTS-treated slices compared with the control, which depended on Src and ERK1/2 signaling. The results indicate that the Ras inhibition by FTS can enhance NMDAr-dependent LTP by increasing Src activity to promote NMDAr GluN2A/GluN2B phosphorylation, which then leads to spatial memory potentiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuropharmacology - Volume 139, 1 September 2018, Pages 257-267
Journal: Neuropharmacology - Volume 139, 1 September 2018, Pages 257-267
نویسندگان
Ya Wang, Tingting Chen, Zihao Yuan, Yajie Zhang, Baofeng Zhang, Liandong Zhao, Ling Chen,