A Distal to Proximal Gradient of Human Choroid Plexus Development, with Antagonistic Expression of Glut1 and AQP1 in Mature Cells vs. Calbindin and PCNA in Proliferative Cells.

A Distal to Proximal Gradient of Human Choroid Plexus Development, with Antagonistic Expression of Glut1 and AQP1 in Mature Cells vs. Calbindin and PCNA in Proliferative Cells.
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DOI:
10.3389/fnana.2016.00087
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发表时间:
2016
影响因子:
2.9
通讯作者:
Castañeyra-Perdomo A
Castañeyra-Perdomo A
中科院分区:
医学3区
文献类型:
--
作者:
Castañeyra-Ruiz L;González-Marrero I;Hernández-Abad LG;Carmona-Calero EM;Meyer G;Castañeyra-Perdomo A

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脉络丛 (ChP) 是悬挂在每个脑室上的高度血管化的组织。它们的主要功能是分泌脑脊液(CSF),填充脑室和蛛网膜下腔,形成中枢神经系统发育和维持的关键系统。然而,尽管 ChP-CSF 系统在全球范围内调节 CNS 方面发挥着重要作用,但它仍然是神经生物学中研究最多的领域之一。在这里,我们通过免疫组织化学定义了从胚胎后期到成熟期间参与 ChP 成熟和功能的不同蛋白质的表达。我们发现水通道蛋白 1 (AQP1) 和葡萄糖转运蛋白 1 (Glut 1) 之间存在相反的表达梯度,它们定义了 ChP 外周的功能成熟,而增殖细胞核抗原 (PCNA) 和钙结合蛋白 (CB) 存在于 ChP 根区,具有增殖活性。我们的结论是,ChP 的成熟从远端到近端成熟,从最靠近皮质的区域开始,在远端成熟区域表达 AQP1 和 Glut1(与支持皮质发育的 ChP 功能相关),在近端未成熟区域(ChP 根部)表达与祖细胞活动和增殖相关的 CB 和 PCNA。
The choroid plexuses (ChP) are highly vascularized tissues suspended from each of the cerebral ventricles. Their main function is to secret cerebrospinal fluid (CSF) that fills the ventricles and the subarachnoid spaces, forming a crucial system for the development and maintenance of the CNS. However, despite the essential role of the ChP–CSF system to regulate the CNS in a global manner, it still remains one of the most understudied areas in neurobiology. Here we define by immunohistochemistry the expression of different proteins involved in the maturation and functionality of the ChP from the late embryological period to maturity. We found an opposite gradient of expression between aquaporin 1 (AQP1) and glucose transporter 1 (Glut 1) that define functional maturation in the ChP periphery, and proliferating cell nuclear antigen (PCNA) and calbindin (CB), present in the ChP root zone with proliferative activity. We conclude that the maturation of the ChP matures from distal to proximal, starting in the areas nearest to the cortex, expressing in the distal, mature areas AQP1 and Glut1 (related to ChP functionality to support cortex development), and in the proximal immature areas (ChP root) CB and PCNA related to progenitor activity and proliferation.
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