TABLE 3.

The role of circRNAs in AS.

circRNA	The expression level of circRNA in AS	Function in AS	References
circ_0090231	Up	Promotes endothelial cell scorching	Ge et al. (2021)
circ_0026218	Down	Reduces endothelial cell apoptosis and inhibits inflammatory response	Yang et al. (2023a)
circRNA_06206	Down	Inhibits angiogenesis	Yuan et al. (2023)
circ_0008896	Up	Promotes endothelial cell apoptosis, angiogenesis and inflammatory response	Liu et al. (2023)
circ_0000280	Down	Inhibits proliferation of smooth muscle cells	Wang et al. (2022b)
circ COL1A1	Up	Promotes the conversion of vascular smooth muscle cells from a contractile to a synthetic phenotype	Ye et al. (2023)
circ_0007478	Up	Promotes foam cell formation	Ye et al. (2022)
circ_0007478	Up	Inhibits endothelial cell viability and promotes endothelial damage	Zhang et al. (2022a)
circNMD 3	Down	Reduces endothelial cell inflammation and oxidative stress	Xiu et al. (2022)
circ_0030042	Up	Promotes the proliferation and migration of vascular smooth muscle cells	Ma et al. (2022)