A light and electron microscopic study of cytoplasmic phospholipase A2 and cyclooxygenase-2 in the hippocampus after kainate lesions

被引:103
作者
Sandhya, TL
Ong, WY [1 ]
Horrocks, LA
Farooqui, AA
机构
[1] Natl Univ Singapore, Dept Anat, Singapore 119260, Singapore
[2] Ohio State Univ, Dept Med Biochem, Columbus, OH 43210 USA
关键词
excitotoxicity; phospholipase A(2); cyclooxygenase-2; arachidonic acid; reactive astrocyte; glial scar; hippocampus;
D O I
10.1016/S0006-8993(97)01552-7
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
The systemic administration of kainate (10 mg/ml) into adult Wistar rats produces seizures and neurodegeneration. We have studied the effect of kainate administration on cPLA(2) and COX-2 immunoreactivities after 3 days and 1, 2, 4 and 11 weeks. The cPLA(2) immunoreactivity was increased in hippocampal neurons at 1 and 3 days after kainate injection suggesting that PLA, may be involved in neurodegeneration. Increased cPLA(2) and COX-2 immunoreactivities in astrocytes at 1, 2, 4 and 11 weeks after kainate injection indicate an adaptive astrocytic response that may be associated with gliosis. (C) 1998 Elsevier Science B.V.
引用
收藏
页码:223 / 231
页数:9
相关论文
共 33 条
[1]  
Adams J, 1996, J NEUROCHEM, V66, P6
[2]  
BRORSON JR, 1994, J NEUROSCI, V14, P187
[3]   PURINERGIC-P2Y RECEPTORS ON ASTROCYTES ARE DIRECTLY COUPLED TO PHOSPHOLIPASE-A2 [J].
BRUNER, G ;
MURPHY, S .
GLIA, 1993, 7 (03) :219-224
[4]   ARACHIDONIC-ACID BINDS TO APOLIPOPROTEIN-D - IMPLICATIONS FOR THE PROTEINS FUNCTION [J].
CABRAL, JHM ;
ATKINS, GL ;
SANCHEZ, LM ;
LOPEZBOADO, YS ;
LOPEZOTIN, C ;
SAWYER, L .
FEBS LETTERS, 1995, 366 (01) :53-56
[5]   OXIDATIVE MECHANISMS INVOLVED IN KAINATE-INDUCED CYTOTOXICITY IN CORTICAL-NEURONS [J].
CHENG, Y ;
SUN, AY .
NEUROCHEMICAL RESEARCH, 1994, 19 (12) :1557-1564
[6]   Reactive glia express cytosolic phospholipase A(2) after transient global forebrain ischemia in the rat [J].
Clemens, JA ;
Stephenson, DT ;
Smalstig, EB ;
Roberts, EF ;
Johnstone, EM ;
Sharp, JD ;
Little, SP ;
Kramer, RM .
STROKE, 1996, 27 (03) :527-535
[7]  
COYLE JT, 1983, J NEUROCHEM, V41, P1
[8]   MULTIPLE-CONDUCTANCE CHANNELS ACTIVATED BY EXCITATORY AMINO-ACIDS IN CEREBELLAR NEURONS [J].
CULLCANDY, SG ;
USOWICZ, MM .
NATURE, 1987, 325 (6104) :525-528
[9]  
FAROOQUI AA, 1992, ADV EXP MED BIOL, V318, P11
[10]  
Farooqui AA, 1997, NEUROCHEM INT, V30, P517