Ischemic tolerance affects the adenylation state of GluR2 mRNA

被引:7
作者
Alsbo, CW [1 ]
Wrang, ML [1 ]
Nielsen, M [1 ]
Diemer, NH [1 ]
机构
[1] Univ Copenhagen, Inst Mol Pathol, Neuropathol Lab, Pharmabiotec Res Ctr, DK-2100 Copenhagen, Denmark
关键词
adenylation; AMPA; brain; global ischemia; in situ hybridization; ischemia; quantitative PCR; rat; tolerance;
D O I
10.1097/00001756-200009280-00046
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
To analyse GluR2 regulations in the rat hippocampal CAI region following global and tolerance-inducing ischemia in situ hybridization (ISH) and quantitative PCR (Q-PCR) was applied. In addition, cDNA was synthesised from two different primer combinations in order to elucidate possible differences in the adenylation state of GluR2 mRNA. Following global ischemia, ISH and Q-PCR both showed reductions to half of control levels of GluR2 mRNA in consent with previously published results. Following tolerance induction, ISH showed no changes, whereas PCR analysis showed up-regulation to 228% of control value for the general cDNA synthesis, and no change for the specific cDNA synthesis. This indicates that tolerance-inducing ischemia does not increase the amount of GluR2 mRNA; instead polyadenylation of the existing GluR2 mRNA pool takes place. NeuroReport 11:3279-3282 (C) 2000 Lippincott Williams & Wilkins.
引用
收藏
页码:3279 / 3282
页数:4
相关论文
共 21 条
[1]   Quantitative PCR analysis of AMPA receptor composition in two paradigms of global ischemia [J].
Alsbo, CW ;
Wrang, ML ;
Johansen, FF ;
Diemer, NH .
NEUROREPORT, 2000, 11 (02) :311-315
[2]   ELEVATION OF THE EXTRACELLULAR CONCENTRATIONS OF GLUTAMATE AND ASPARTATE IN RAT HIPPOCAMPUS DURING TRANSIENT CEREBRAL-ISCHEMIA MONITORED BY INTRACEREBRAL MICRODIALYSIS [J].
BENVENISTE, H ;
DREJER, J ;
SCHOUSBOE, A ;
DIEMER, NH .
JOURNAL OF NEUROCHEMISTRY, 1984, 43 (05) :1369-1374
[3]  
BRORSON JR, 1995, J NEUROSCI, V15, P4515
[4]   SINGLE-STEP METHOD OF RNA ISOLATION BY ACID GUANIDINIUM THIOCYANATE PHENOL CHLOROFORM EXTRACTION [J].
CHOMCZYNSKI, P ;
SACCHI, N .
ANALYTICAL BIOCHEMISTRY, 1987, 162 (01) :156-159
[5]  
FRANK L, 1995, ACTA NEUROL SCAND, V92, P337
[6]  
Gorter JA, 1997, J NEUROSCI, V17, P6179
[7]   IDENTIFICATION OF A SITE IN GLUTAMATE RECEPTOR SUBUNITS THAT CONTROLS CALCIUM PERMEABILITY [J].
HUME, RI ;
DINGLEDINE, R ;
HEINEMANN, SF .
SCIENCE, 1991, 253 (5023) :1028-1031
[8]   DIFFERENCES IN CA2+ PERMEABILITY OF AMPA-TYPE GLUTAMATE-RECEPTOR CHANNELS IN NEOCORTICAL NEURONS CAUSED BY DIFFERENTIAL GLUR-B SUBUNIT EXPRESSION [J].
JONAS, P ;
RACCA, C ;
SAKMANN, B ;
SEEBURG, PH ;
MONYER, H .
NEURON, 1994, 12 (06) :1281-1289
[9]   A FAMILY OF AMPA-SELECTIVE GLUTAMATE RECEPTORS [J].
KEINANEN, K ;
WISDEN, W ;
SOMMER, B ;
WERNER, P ;
HERB, A ;
VERDOORN, TA ;
SAKMANN, B ;
SEEBURG, PH .
SCIENCE, 1990, 249 (4968) :556-560
[10]   GluR2 protein synthesis and metabolism in rat hippocampus following transient ischemia and ischemic tolerance induction [J].
Kjoller, C ;
Diemer, NH .
NEUROCHEMISTRY INTERNATIONAL, 2000, 37 (01) :7-15