FGF regulates TGF-β signaling and endothelial-to-mesenchymal transition via control of let-7 miRNA expression.
FGF regulates TGF-β signaling and endothelial-to-mesenchymal transition via control of let-7 miRNA expression.
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DOI:
10.1016/j.celrep.2012.10.021
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发表时间:
2012-12-27
期刊:
影响因子:
8.8
通讯作者:
Simons M
中科院分区:
文献类型:
--
作者:
Chen PY;Qin L;Barnes C;Charisse K;Yi T;Zhang X;Ali R;Medina PP;Yu J;Slack FJ;Anderson DG;Kotelianski V;Wang F;Tellides G;Simons M
Maintenance of normal endothelial function is critical to various aspects of blood vessel function but its regulation is poorly understood. In this study we show that disruption of baseline FGF signaling to the endothelium leads to a dramatic reduction in let-7 miRNA levels that in turns increases expression of TGFβ ligands and receptors and activation of TGFβ signaling leading to endothelial-to-mesenchymal transition (Endo-MT). We further find that Endo-MT is an important driver of neointima formation in a murine transplant arteriopathy model and in rejecting human transplants lesions. The decline in endothelial FGF signaling input is due to the appearance of an FGF resistance state that is characterized by inflammation-dependent reduction in expression and activation of key components of the FGF signaling cascade. These results establish FGF signaling as a critical factor in maintenance of endothelial homeostasis and point to an unexpected role of Endo-MT in vascular pathology.
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DOI:
10.1152/ajplung.00070.2010
发表时间:
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影响因子:
4.9
作者:
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通讯作者:
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发表时间:
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作者:
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通讯作者:
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通讯作者:
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