並列タイトル等成体マウス脳の成熟および未成熟オリゴデンドロサイトにおけるコルチコイステロイドレセプタ−の分布
タイトル(掲載誌)The journal of histochemistry and cytochemistry
一般注記type:Thesis
The expression of glucocorticoid receptors (GRs) was investigated immunohistochemically in two different lineages of oligodendrocytes, using carbonic anhydrase (CA) II and neuron glial antigen (NG) 2 as markers of mature oligodendrocytes and oligodendrocyte progenitors, respectively. We focused on the gray matter regions, including CA1, CA3 and the dentate gyrus of the hippocampus, the primary somatosensory cortex barrel field and the basolateral amygdala, and the white matter regions, including the corpus callosum, external capsule and fimbria of the hippocampus. More than 80% of CAII-immunoreactive (IR) cells and more than 95% of NG2-IR cells expressed GRs in various regions of the brain. In contrast, neither CAII-IR cells nor NG2-IR cells expressed mineralocorticoid receptors (MRs) in the same regions. The intensity of GR expression was drastically reduced in CA II-IR cells and NG2-IR cells in the same regions in adrenalectomized mice. Finally, steroid receptor co-activator (SRC)-1 and p300, both of which are cofactors for GR, were expressed in the gray and white matter regions in NG2-IR cells, but not in CAII-IR cells. These results suggest that the expression of GRs in oligodendrocytes and their progenitor cells mediates several functions in vivo, including differentiation and myelination, as a major target of glucocorticoids and their cofactors.
博士(医学)・甲620号・平成26年3月17日
Copyright © 2014 by The Histochemical Society
identifier:The journal of histochemistry and cytochemistry Vol.62 No.3 p.211-226
identifier:00221554
identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/2705
identifier:The journal of histochemistry and cytochemistry, 62(3): 211-226
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)
提供元機関・データベース奈良県立医科大学 : 奈良県立医科大学機関リポジトリ GINMU