miR-539 Targeting SNAI2 Regulates MMP9 Signaling Pathway and Affects Blood-Brain Barrier Permeability in Cerebrovascular Occlusive Diseases: A Study Based on Head and Neck Ultrasound and CTA

Figure 4

miR-539 participating in regulating endothelial cell permeability by affecting the SNAI2/MMP9 signaling pathway. (a) The permeability of miR-539 overexpression and SNAI2 overexpression to vascular endothelial cells during the culture of brain microvascular endothelial cells. (b) Western blot test used to detect the effects of miR-539 overexpression and SNAI overexpression on SNAI and MMP9 expression level.

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