Experimental autoimmune neuritis induces differential microglia activation in the rat spinal cord

被引:23
作者
Beiter, T [1 ]
Artelt, MR [1 ]
Trautmann, K [1 ]
Schluesener, HNJ [1 ]
机构
[1] Univ Tubingen, Brain Res Inst, D-72076 Tubingen, Germany
关键词
microglia; activation pattern; EAN; spinal cord; progenitor cells;
D O I
10.1016/j.jneuroim.2004.10.027
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
The reactive spatial and temporal activation pattern of parenchymal spinal cord microglia was analyzed in rat experimental autoimmune neuritis (EAN). We observed a differential activation of spinal cord microglial cells. A significant increase in ED1(+) microglia predominantly located in the dorsal horn grey matter of lumbar and thoracic spinal cord levels was observed on Day 12. As revealed by morphological criteria and by staining with further activation markers [allograft inflammatory factor 1 (AIF-1), EMAPII, OX6, P2X(4)R], reactive microglia did not reach a macrophage-like state of full activation. On Day 12, a significant proliferative response could be observed, affecting all spinal cord areas and including ED1(+) microglial cells and a wide range of putative progenitor cells. Thus, in rat EAN, a reactive localized and distinct microglial activation correlating with a generalized proliferative response could be observed. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:25 / 31
页数:7
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