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KMID : 0578320200430080749
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Molecules and Cells
2020 Volume.43 No. 8 p.749 ~ p.762
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WD Repeat Domain 1 Deficiency Inhibits Neointima Formation in Mice Carotid Artery by Modulation of Smooth Muscle Cell Migration and Proliferation
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Hu Ji Sheng
Pi Shang Jing
Xiong Ming Rui
Liu Zhong Ying
Huang Xia
An Ran
Zhang Tong Cun
Yuan Bai Yin
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Abstract
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The migration, dedifferentiation, and proliferation of vascular smooth muscle cells (VSMCs) are responsible for intimal hyperplasia, but the mechanism of this process has not been elucidated. WD repeat domain 1 (WDR1) promotes actin-depolymerizing factor (ADF)/cofilin-mediated depolymerization of actin filaments (F-actin). The role of WDR1 in neointima formation and progression is still unknown. A model of intimal thickening was constructed by ligating the left common carotid artery in Wdr1 deletion mice, and H&E staining showed that Wdr1 deficiency significantly inhibits neointima formation. We also report that STAT3 promotes the proliferation and migration of VSMCs by directly promoting WDR1 transcription. Mechanistically, we clarified that WDR1 promotes the proliferation and migration of VSMCs and neointima formation is regulated by the activation of the JAK2/STAT3/WDR1 axis.
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KEYWORD
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migration, neointima formation, proliferation, vascular smooth muscle cells, WD repeat domain 1
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