CEACAM1 Expression in Oligodendrocytes of the Developing Rat Brain Shows a Spatiotemporal Relation to Myelination and Is Altered in a Model of Encephalopathy of Prematurity

CEACAM1 Expression in Oligodendrocytes of the Developing Rat Brain Shows a Spatiotemporal Relation to Myelination and Is Altered in a Model of Encephalopathy of Prematurity
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发育中的大鼠大脑少突胶质细胞中 CEACAM1 的表达与髓鞘形成存在时空关系,并且在早产儿脑病模型中发生改变

DOI:
10.1159/000348436
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发表时间:
2013
影响因子:
2.9
通讯作者:
Ergün S
Ergün S
中科院分区:
医学3区
文献类型:
--
作者:
Prager S;Singer BB;Bendix I;Schlager GW;Bertling F;Ceylan B;Keller M;Felderhoff-Mueser U;Ergün S

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CEACAM1是“癌胚抗原相关细胞粘附分子”家族的创始分子,也是免疫球蛋白超家族的一部分。由于其作为许多其他受体(例如 Toll 样受体 2、Toll 样受体 4、T 细胞受体、B 细胞受体、表皮生长因子受体和血管内皮生长因子受体)及其不同亚型的辅助受体的作用,CEACAM1 是一种多功能蛋白,对多种细胞类型的增殖和分化有影响。尽管描述了其他组织中的不同作用模式,但 CEACAM1 在发育中的大脑中的作用仍然难以捉摸。在这里,我们首次报道CEACAM1在发育中的大鼠大脑少突胶质细胞中个体发生表达,并且CEACAM1表达与髓鞘形成具有时空关系。此外,在高氧和炎症诱发的早产性脑病(一种早产儿的髓鞘形成疾病)模型中,CEACAM1 表达发生改变。此外,用 CEACAM1 刺激的初级少突胶质细胞显示髓鞘形成增加。因此,我们推测 CEACAM1 至少部分参与高氧和炎症诱导的髓鞘形成破坏,但也可能在完整髓鞘形成中发挥作用,因为它在髓鞘少突胶质细胞中个体发育表达。
CEACAM1 is the founder molecule of the family of ‘carcinoembryonic antigen-related cell adhesion molecules' and part of the immunoglobulin superfamily. Due to its role as a coreceptor to many other receptors (eg Toll-like receptor 2, Toll-like receptor 4, T-cell receptor, B-cell receptor, epidermal growth factor receptor and vascular endothelial growth factor receptor) and its different isoforms, CEACAM1 is a multifunctional protein with an impact on proliferation and differentiation of multiple cell types. Although different modes of action in other tissues are described, the role of CEACAM1 in the developing brain remains elusive. Here we report for the first time that CEACAM1 is expressed ontogenetically in oligodendrocytes of the developing rat brain, and that CEACAM1 expression has a spatiotemporal relation to myelination. In addition, CEACAM1 expression is altered in a model of hyperoxia-and inflammation-induced encephalopathy of prematurity, a myelination disorder of children born preterm. Furthermore, primary oligodendrocytes stimulated with CEACAM1 show increased myelination. Therefore, we postulate that CEACAM1 is, at least in part, involved in hyperoxia-and inflammation-induced disruption of myelination, but may also play a role in intact myelination as it is ontogenetically expressed in myelinating oligodendrocytes.
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DOI: 10.1042/bj2360559
发表时间: 1986
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