Astrocyte-Derived TGFβ1 Facilitates Blood-Brain Barrier Function via Non-Canonical Hedgehog Signaling in Brain Microvascular Endothelial Cells.
Astrocyte-Derived TGFβ1 Facilitates Blood-Brain Barrier Function via Non-Canonical Hedgehog Signaling in Brain Microvascular Endothelial Cells.
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星形胶质细胞衍生的 TGF beta 1 通过脑微血管内皮细胞中的非典型 Hedgehog 信号传导促进血脑屏障功能
DOI:
10.3390/brainsci11010077
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发表时间:
2021-01-08
期刊:
影响因子:
3.3
通讯作者:
Wang X
中科院分区:
文献类型:
--
作者:
Fu J;Li L;Huo D;Zhi S;Yang R;Yang B;Xu B;Zhang T;Dai M;Tan C;Chen H;Wang X
The blood–brain barrier is a specialized structure in mammals, separating the brain from the bloodstream and maintaining the homeostasis of the central nervous system. The barrier is composed of various types of cells, and the communication between these cells is critical to blood–brain barrier (BBB) function. Here, we demonstrate the astrocyte-derived TGFβ1-mediated intercellular communication between astrocytes and brain microvascular endothelial cells (BMECs). By using an in vitro co-culture model, we observed that the astrocyte-derived TGFβ1 enhanced the tight junction protein ZO-1 expression in BMECs and the endothelial barrier function via a non-canonical hedgehog signaling. Gli2, the core transcriptional factor of the hedgehog pathway, was demonstrated to modulate ZO-1 expression directly. By the dual-luciferase reporter system and chromatin immunoprecipitation, we further identified the exact sites on Smad2/3 that bound to the gli2 promotor and on Gli2 that bound to the zo-1 promotor. Our work highlighted the TGFβ1-mediated intercellular communication of astrocytes with BMECs in BBB, which shall extend current knowledge on the BBB homeostasis physiologically, and more importantly suggests TGFβ1 as a potential effector for future prevention and amelioration of BBB dysfunction.
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DOI:
10.1073/pnas.1110655108
发表时间:
2011-10-25
影响因子:
11.1
作者:
Haj-Yasein, Nadia Nabil;Vindedal, Gry Fluge;Nagelhus, Erlend Arnulf
通讯作者:
Nagelhus, Erlend Arnulf
影响因子:
7.2
作者:
Hata A;Chen YG
通讯作者:
Chen YG
DOI:
10.1038/nrm3434
发表时间:
2012-10
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
3.4
作者:
Edwards VL;Wang LC;Dawson V;Stein DC;Song W
通讯作者:
Song W
影响因子:
8.3
作者:
He Y;Yao Y;Tsirka SE;Cao Y
通讯作者:
Cao Y